JP2004130820A - Screen for screen printing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a screen for screen printing in which the position of a screen and the position of a print object can be accurately controlled to realize precise screen printing. <P>SOLUTION: This screen for screen printing is characterized in that a mark for printing register is provided on the upper or lower surface or both the upper and lower surfaces of the screen. <P>COPYRIGHT: (C)2004,JPO

Description

The present invention relates to a screen for screen printing. The present invention relates to a screen having a new structure in which screen meshes or sheets are variously combined. Further, the present invention relates to a method for detachably attaching a screen to a screen frame, and a method for manufacturing a screen frame and a plane mirror used for the method.

Furthermore, it relates to a method of stretching a canvas for painting and a sheet for advertisement on a frame.

Conventionally, a screen plate for screen printing is provided with one metal mesh mainly having a low elasticity and having a portion to be formed with an image to be formed in the center portion of the screen plate, and an image to be formed around the portion to be formed with an image as a supporting portion thereof. There is used a screen plate in which one mesh having greater elasticity than a portion is arranged (Japanese Utility Model Publication No. 51-9297). That is, one screen plate is configured using two types of meshes having different elasticities. From this point of view, there has been proposed a screen plate in which the image forming unit is formed of one stainless steel mesh and the periphery thereof is formed of one polyester mesh. Further, in this configuration, there is also known a configuration in which the image forming units are arranged not in the center of the frame but vertically and horizontally and horizontally (Japanese Patent Laid-Open No. 2-00494).

In addition, in the invention in which meshes are superimposed, a combination mask is proposed in which an edge portion of a metal plate having an image hole to be a printing surface is formed by superimposing two meshes. (JP-A-9-150497).

Further, there has been proposed one in which a reinforcing portion is provided between a plate frame material and an image forming portion with one mesh so as to surround the image forming portion. The reinforcing portion is obtained by curing a sheet member or an adhesive (Japanese Patent Application Laid-Open No. H11-170719).

In addition, as a screen of a combination of a mesh and a sheet, a screen in which an image forming portion is formed of a stainless steel mesh and a periphery thereof is formed of a polyester film is known.
Japanese Utility Model Publication No. 51-9297 JP-A-2-00494 JP-A-9-150497 JP-A-11-170719 JP-A-63-207646

ス ク リ ー ン In recent years, there are fields in which the demand for screen printing and its target are rapidly expanding. The printing target is lacking in the manufacture of electronic devices such as printed circuit boards, hybrid ICs, chip parts, fluorescent display tubes, plasma displays, liquid crystal displays, EL and other electrodes and circuit forming printing, fluorescent material printing, partition wall printing, etc. It is about basic technology that cannot be done. It is not uncommon for the required printing position accuracy to be 5 microns or less. Therefore, the present invention relates to a printing field in which a slight movement of a printing pattern portion is a serious problem.

Conventionally, a screen plate for screen printing is provided with a metal mesh mainly having a low elasticity having a portion to be formed with an image at a center portion of the screen plate, and a relatively elastic mesh around the portion to be formed with an image as a supporting portion thereof. A relatively simple screen version with a large mesh is used.

Therefore, in the case of precision printing, if a large tension is applied to the screen plate in order to reduce the movement of the image, the elastic limit of the metal mesh in the portion where the image is to be formed is different from the elastic limit of the elastic mesh to be combined. The mesh with the lower elastic limit may exceed the elastic limit first and reach the yield point, and the weaker may stretch out earlier and be unable to return to the original state, giving the screen a large tension as a whole There was a problem that could not be done.

The screen has completely different elasticity and elasticity depending on the size of the part where the image is to be formed and the screen material to be used, etc., so each time it is adjusted in the manufacture of the screen according to the required purpose of the printed material This adjustment is a difficult task.

Also, such as a bonded portion of a metal sheet screen and a synthetic resin mesh screen, such as a bonded portion of a screen made of different materials, or a bonded portion of a screen having different properties and forms such as a mesh and a sheet, the bonding strength is weak, There is a problem that the film may be peeled off when a strong tension is applied, and that it cannot withstand long-term use.

ス ク リ ー ン In addition, when screens are spliced or overlapped, a step is generated at the seam or the place where the screens are overlapped. When printing is performed using this screen, the squeegee may be caught on a step, causing the squeegee to be damaged or to be peeled off from the step, and eventually the screen may be broken.

金属 The largest screen size of the metal mesh screen currently on sale is a 1.5 m wide roll. Although this may be due to the production convenience of the metal mesh maker, it is a practical limiting factor in producing a non-bonded screen.

In addition, it is necessary to create a large screen and perform mass printing at one time to reduce the printing cost. However, in reality, there are restrictions due to the size of the screen currently sold, Since it cannot be manufactured, it has been a difficult task to put it to practical use.

Furthermore, in screen printing, printing of a printed material having projections or projections has been an extremely difficult subject.

This screen metal mesh has a structure in which thin metal wires are woven in a mesh shape like a normal woven fabric, so there are innumerable intersections of metal wires constituting the mesh, and they are stretched by applying strong tension. When printing on the screen, if you press vertically with a squeegee, the intersection of these metal lines will be distorted or displaced, resulting in distorted or displaced images and reduced printing accuracy It is one of the causes.

Therefore, if it is possible to minimize the occurrence of distortion and displacement at the intersection of the metal lines of the screen of the metal mesh forming the image forming unit, printing accuracy can be significantly improved, and furthermore, the side of the frame side Precise printing becomes possible if the length and the sides of the frame can be curved to correct image distortion and misalignment.

The screen of the mesh used for the image forming unit is made by weaving a thin wire of a metal such as stainless steel (500 mesh, the wire diameter is 18 microns) to form a mesh. By this fine wire processing, the wire surface is smooth like a mirror surface. Has the property of irregularly reflecting light. In order to form an image thereon, light such as ultraviolet rays is mainly irradiated to sensitize the photographic photosensitive agent, but when a fine print image is formed, light is irregularly reflected on the mirror-like line surface, and the image is blurred. Thus, there was a problem that a clear and sharp image could not be formed.

ス ク リ ー ン Since a screen for screen printing is stretched by applying tension to the screen, the screen frame needs to have strength to withstand this tension, and an extremely sturdy wooden or metal one is used. The screen frame is heavy and bulky.

Further, since the screen is adhered to the screen frame with an adhesive or fixed, the screen cannot be easily detached freely from the screen frame to be stored or transported.

Also, the plate is stored for reuse at a later date, but it is stored with the screen stretched over the frame, which requires a large storage space such as a warehouse, which is uneconomical.

In addition, since the screen is stored with tension applied, there is a problem that the screen is elongated during storage and the image is deformed.

In addition, since the screen processing location and the image formation location and the printing location are often separated from each other, moving and transporting a heavy and bulky screen frame to each location is labor-intensive and inefficient. Was inconvenient.

In addition, removing the screen and cleaning it in order to reuse the used screen frame was very labor-intensive.

ス ク リ ー ン In addition, the screen frame that freely adjusts the side length of the screen frame requires a large-sized screen pulling means, is inconvenient to handle, and has not been found to be practical.

By combining a screen frame that freely adjusts the side length of the screen frame with a screen hook that fixes the screen, you can stretch the screen, adjust the screen tension, and use the screen hook that fixes the screen. It would be convenient if we could make it detachable, but we couldn't find such a thing.

In addition, when there is a distortion in the printing object itself, when there is uneven stretching of the screen, or when there is a distortion or misalignment caused by floating printing, it is difficult to correct or adjust this to increase the printing accuracy. .

Furthermore, once the screen is fixed to the screen frame and an image is formed on the screen, if the distortion and deviation of the generated image can be adjusted, the printing accuracy is remarkably improved. It was a difficult task.

Further, it has not been possible to make a plane mirror at low cost, or to easily change a canvas for painting or an advertisement.

The present invention provides a screen which can be stretched with a strong tension capable of precision printing, and a screen which can freely adjust stretchability and tension according to the purpose of printing, and for the purpose of producing the screen at low cost, using a mesh or mesh. One or more sheet screens are joined together to form a patchwork, or a new screen is created by laminating and joining a plurality of these sheets, thereby reducing the tensile strength and flexibility of the screen. The above problem has been solved by making the yield point adjustable. As a result, a screen having a new structure and an advantageous effect capable of obtaining an unprecedented high tension is obtained.

Combine thin, thick, densely woven, coarsely woven, thickly coated emulsion, thinly coated emulsion, or screen mesh with different angles in one plate Thus, various print expressions are arranged in one plate, and this is made possible by one printing.

In addition, for each image having a difference in the properties of ink, a difference in performance, a difference in color, and a difference in pattern, a partition wall of a surrounding or divided ridge is provided, so that ink is prevented from being mixed. A plurality of expressions can be simultaneously performed by one printing.

Originally, each mesh or sheet used for screen printing screens is extremely thin, so even if multiple sheets are laminated and bonded, they do not become much thicker and do not lose elasticity. It has been found that a structure in which a plurality of the screens of the invention are laminated and bonded is extremely effective.

When the first screen and the second screen are adhered with an adhesive or a photosensitive emulsion, the screen material is extremely thin, so that the screen is fixed firmly, without losing any stretchability, and without a certain degree of elasticity. Screens larger than the area still retain some flexibility required for printing as a whole screen. By finding this property, the present invention has been completed.

Furthermore, a screen frame in which the screen is temporarily fixed without applying a large tension to the screen in a delicate, simple or inexpensive frame or a frame-shaped object different from the screen frame in which the screen frame side length is made expandable and contractible. Using a hanging device, a horizontal moving device, a screen holding device, and a screen fixed to the hanging device, print the screen frame with printable tension on the screen, and then make the screen detachable. Also aimed.

In the invention relating to a conventional screen for screen printing, a screen is fixed to a screen frame by applying tension to the screen, and the screen is stretched in a printable state.

On the other hand, in the invention of the present application, in addition to the screen fixed to the screen frame, a screen for screen printing is formed, and this is not stretched over the screen frame, or fixed to the screen hook, Alternatively, a form in which a screen is coated with a photosensitive resin, or an image is formed on a screen, and this is sold as a product as it is, is also included.

で は In the present invention, all the screen frames are described as being square, but it is needless to say that polygonal ones can also be used. It can be adopted as needed.

In addition to the above, screens in which the screen ends are processed into a loop shape (sack shape) and those in which the entire screen edge of the sheet is folded over the upper or lower surface of the screen are also sold as new-type products. Is also included.

(5) If the purchaser of this screen purchases and places one screen frame on which the screen can be stretched in advance, the purchase of the screen can be completed thereafter, which is economical.

In addition, the purchaser of the screen fixed to the screen hooking device uses a screen extending device, stretches it on an appropriate screen frame, forms an image, and uses a new form of screen printing. It is also a product proposal. In printing, the bonded screen that is not stretched over the screen frame can be printed by fixing it to a screen hook and fixing the screen to the screen frame with an adhesive or the like to form an image on the image forming unit. Further, it can be sold as a laminated screen plate for screen printing after being stretched and fixed on a screen frame.

This makes it possible to handle, transport, and store the screen separately from the bulky and heavy screen frame, which is extremely convenient and efficient.

In the present invention, a screen stretched over a screen frame will be described as a screen version.

By joining screens or laminating one or more sheets to form a screen or screen plate, it has the high tension required for precision printing screens, less movement and distortion of images and less elasticity. The above problems were solved by obtaining a high screen and screen version.

Furthermore, each screen to be bonded, which is smaller than the size of one conventional screen, has been discarded as screen cutting waste. By effectively utilizing this screen fragment, different types of screen materials are mixed and used in a patchwork form to reduce the amount of new screen material used as much as possible. Plate production costs have been reduced.

Also, by joining the screens, a large screen can be easily provided at a low cost.

Further, a method is proposed in which a screen is detachably attached to the screen frame by using a screen frame or a screen presser configured to be extendable.

That is, a first screen having an image or an image forming scheduled portion and a second screen having no image or an image forming scheduled portion are spliced to form one screen, and this is defined as the size of the outside of the screen frame. In the screen printing screen, the first screen is a patchwork shape by joining one or a plurality of meshes into a patchwork shape, or by mixing and joining a plurality of meshes and sheets into a patchwork shape, Or, a plurality of these are laminated and bonded, and the second screen is formed into one of a mesh or a sheet, or a plurality of sheets are joined to form a patchwork, or a plurality of mesh and sheets are mixed. A patchwork shape, or a plurality of meshes or sheets laminated and attached, or the first A screen printing screen characterized in that a screen and a second screen are hybridized to form a patchwork shape, and a first screen having an image or an image formation scheduled portion, and an image or an image formation scheduled portion A second screen having no mesh is formed into one screen, and the screen is a screen printing screen having a size outside of a screen frame. In the screen printing screen, the first screen is a single mesh or a plurality of meshes. Into a patchwork shape, or a plurality of meshes and sheets are mixed and joined into a patchwork shape, or a plurality of these are laminated and stuck together, and the second screen is mesh or Multiple sheets are joined to form a patchwork, or multiple sheets are mixed and joined together A screen printing characterized by a patchwork shape, a plurality of meshes or sheets laminated and bonded, or a mixture of the first screen and the second screen to form a patchwork shape. Screen.

Further, a first screen having an image or an image forming scheduled portion and a second screen having no image or an image forming scheduled portion are joined together to form one screen, and this is defined as the size of the outside of the screen frame. In the screen for screen printing, the first screen is formed into a patchwork by joining one or a plurality of sheets to form a patchwork, or by mixing and joining a plurality of mesh and sheets into a patchwork, Or, it is assumed that a plurality of these are laminated and bonded, and the second screen is formed into a patchwork shape by joining a plurality of meshes or sheets, or a patch is formed by combining and joining a plurality of meshes and sheets. A workpiece, or a plurality of meshes and sheets stacked and bonded together, or the first screen and the second screen A screen printing screen characterized in that the screen is hybridized into a patchwork shape, and a first screen having an image or an image forming scheduled portion, and a second screen having no image or an image forming scheduled portion. The screen and the screen are joined together to form a single screen, and this is a screen printing screen whose size is the outside of the screen frame. In the screen printing screen, the first screen is joined with a plurality of meshes or sheets to form a patchwork. Or, a plurality of meshes and sheets are mixed and joined to form a patchwork shape, or a plurality of these are laminated and bonded, and the second screen is formed as a single mesh or sheet or a plurality of Sheets into a patchwork shape, or a mixture of multiple mesh and sheet And a work form, or a screen printing screen, characterized in that it is assumed that these multiple-ply bonded.

Next, a first screen having an image or an image forming scheduled portion and a second screen having no image or an image forming scheduled portion are spliced together to form one screen, and this is defined as the size of the outside of the screen frame. In the screen printing screen, the first screen is formed into a patchwork by joining one or a plurality of meshes into a patchwork shape, or by mixing and joining a plurality of meshes and sheets into a patchwork shape. Or a plurality of these are superimposed and bonded together, and the second screen is made into one of a mesh or a sheet, or a plurality of sheets are joined to form a patchwork, or a plurality of meshes and sheets are mixed. Into a patchwork shape, or a plurality of meshes laminated and bonded together, and the second screen One or a plurality of the second meshes are abutted or superposed on the entire upper surface, the entire lower surface, or the entire upper and lower surfaces, or a part of the upper and lower surfaces, and the second mesh is disposed on the second mesh. A screen printing screen characterized by being fixed to a screen, wherein a first screen having an image or an image forming scheduled portion and a second screen having no image or an image forming portion are joined together to form one screen. In a screen printing screen having a size outside the screen frame, the first screen is formed into a single sheet or a plurality of sheets to form a patchwork, or a mesh and a sheet. A plurality of sheets are mixed and joined to form a patchwork shape, or a plurality of these pieces are laminated and bonded, and the second screen is A single piece of mesh or sheet or a patchwork shape by joining a plurality of sheets together, or a mixture of multiple meshes and sheets into a patchwork shape by joining together And further, a single or a plurality of the second sheets are abutted or laminated on the entire upper surface, the entire lower surface, or the entire upper and lower surfaces, or a part of the upper and lower surfaces, of the second screen. A screen printing screen, wherein the screen printing screen is arranged and fixed to the second screen.

Furthermore, a first screen having an image or an image forming scheduled portion and a second screen having no image or an image forming scheduled portion and having a through hole of the image or the image forming scheduled portion are overlapped and stuck to each other to form a screen frame. In the screen for screen printing constituted into one screen, the first screen is made to be a single mesh or a plurality of sheets are overlapped to have a size of the inner method or the outer method, and the second screen is formed. One or a plurality of meshes are superimposed to have a size of the inner or outer method, and one or both of the combination of the first screen and the second screen have the size of the screen outer method. A screen printing screen characterized in that the first and the second screens have an image or an image forming scheduled portion. A screen and a second screen having an image or an image formation scheduled portion and a through-hole of the image or image formation scheduled portion are overlapped and laminated to have a screen frame size, and a screen printing screen configured as one screen. The first screen is formed as one sheet or a plurality of sheets are superimposed to have a size of the inner method or the outer method, and the second screen is formed as one sheet or a plurality of sheets. The method is characterized in that the inner screen or the outer screen has a size, and one or both of the combination of the first screen and the second screen are combined so as to have a size outside the screen frame. It is a screen for screen printing.

Further, a first screen having an image or an image forming scheduled portion and a second screen having no image or an image forming scheduled portion are joined together to form one screen, and this is defined as the size of the outside of the screen frame. In the screen for screen printing, the first screen is formed into a patchwork by joining one or a plurality of meshes or sheets into a patchwork shape, or by joining a plurality of meshes and sheets into a patchwork shape. Or a plurality of these are laminated and bonded together, and the second screen is made into one of a mesh or a sheet, or a plurality of sheets are joined together to form a patchwork, or a plurality of mesh and sheets are mixed. Into a patchwork shape, or by laminating and bonding a plurality of these, A plurality of images or portions to be formed are scattered on a patchwork-shaped screen obtained by mixing and joining a second screen and a second screen, and the size of the screen or the outside of the screen frame is determined. It is a screen for screen printing characterized in that, in the screen for screen printing, a plurality of image or image formation scheduled portions are scatteredly provided on the screen, and the surrounding ridge that surrounds or separates the image or image formation planned portion. Alternatively, a screen for screen printing, wherein a partition rib is provided on an upper surface of the screen.

Further, in a screen printing screen for printing a printing material having projections or projections, the projections or projections on the upper surface, the lower surface, or both upper and lower surfaces of the screen at a position corresponding to the projections or projections of the sheet or the printing material. A screen is formed by arranging fragments of a slightly larger sheet, and the screen surface at a position corresponding to the protrusion or the protrusion is formed by surrounding the protrusion or protrusion with a protrusion surrounding the size of the protrusion or the protrusion. What is claimed is: 1. A screen printing screen characterized by having holes or through-holes, wherein the screen printing screen is provided with printing alignment marks on the lower surface or both upper and lower surfaces of the screen. It is.

Further, the mesh and the sheet as the screen material are a mesh or a sheet made of metal, synthetic resin, animal, plant, mineral or a composite material thereof, and the sheet as the screen material is formed by photolithography, plating, electroforming. Casting, etching, laser processing, punching, luter processing, machining, molding or sandblasting to form a sheet processing mesh and form an image on it, or form a sheet processing mesh And a screen printing screen that simultaneously forms an image by the above-mentioned processing, and in the screen of the screen printing sheet, all edges of the screen of the sheet having an image or an image formation scheduled portion are folded back to the upper surface or the lower surface. To provide a folded part, or overlap the folded part, Or screen edges all sides of the mesh folded on the upper surface or the lower surface, a screen of the screen printing sheet, characterized in that it was formed on the coating hardened by sheet by an adhesive.

Next, on the screen of the screen printing sheet, a fold is provided on the entire periphery of the screen end of the sheet having the image or the portion to be formed with the image, or the entire side is folded upward or downward to provide a fold, or the fold is overlapped. Or the whole of the folded portion of the screen of the sheet which is fixed by overlapping, or the entire screen edge of the mesh is folded up or down, and the sheet is formed by applying an adhesive to form a sheet. A screen printing sheet screen characterized by having a folded portion provided on a screen frame side upper surface or an outer side surface to be hooked on the entire periphery of the portion. Or, penetrate through the screen surface excluding the image or the image forming scheduled portion around the screen edge of the sheet having the image forming scheduled portion With one or many, the screen upper or lower surface of the place where the through-hole is provided, or a part or the whole of the upper and lower surfaces, one mesh or sheet or a fragment of a size to block each of the through-holes, Alternatively, there is provided a screen for a sheet for screen printing, wherein the screen is formed by arranging a fragment on the entire surface and abutting the piece on the screen of the sheet.

Further, the mesh is a metal or synthetic resin mesh plated with metal, black plating and a color that does not reflect ultraviolet rays, or a screen printing screen in which the intersections of the lines forming the mesh are fixed. An image is formed on a metal mesh on which metal plating is applied, and the metal plating layer at a portion where the plating of the mesh of the image is exposed is screen-printed by dissolving the plating with an acid or alkali solution or removing by sandblasting. Screen.

Further, in a screen printing screen plate, one screen of a mesh or one screen of joined meshes, or one screen of a sheet or one screen of joined sheets, or a mixture of a mesh and a sheet One of the screens formed in a patchwork shape is stretched on a screen frame with different longitudinal and lateral tensions, or one mesh or one mesh is joined Any combination of any one of the following screens, one of the sheets or one screen where the sheets are joined together, or one screen where the mesh and the sheet are mixed and formed into a patchwork shape are combined The screens are constructed in such a manner that the tension of each of the screens is different or the tension in the vertical and horizontal directions is changed, and the screens are stretched. This is a screen plate for screen printing characterized by laminating and laminating, and a frame or corner having a strength enough to fix the screen without applying tension to the screen, or a corner is connected and fixed with a flexible material. Screen fixing, wherein a screen is fixed without applying tension to each of a frame having a structure in which a corner expands and contracts, a frame whose corners are not connected and fixed, and a frame of a flexible material. Tool.

Further, the screen printing screen described above is adhered, fixed or attached and fixed to a screen frame and stretched, and the first screen having an image or an image forming scheduled portion is a screen printing screen plate. And a second screen without an image or an image forming scheduled portion are joined together to form one screen, and this is a screen printing screen plate having a size outside the screen frame. The screens may be made into a patchwork by joining one mesh or a plurality of meshes with their meshes aligned in the direction of their respective meshes, or by mixing mesh and sheet screens to form a mesh of each mesh. The first screen in which the directions are aligned and spliced to form a patchwork, or a plurality of these sheets are laminated and stuck together; The directions of the meshes of the screen and the mesh of the second screen are parallel to or different from each other with respect to the screen frame, and the meshes are overlapped and attached to each other to be stretched on the screen frame. This is a screen version for screen printing.

Next, in a screen printing screen divided into an upper stage and a lower stage, the lower surface of the upper frame is fitted into the lower frame or fitted into a fitting groove provided inside the frame side of the upper surface of the lower frame. A projection is provided on the upper side of the lower frame side, and a locking portion for detachably locking a screen locking device to which the screen is fixed is provided, and the screen locking device is locked to the locking portion. A screen plate for screen printing, wherein the screen is fixed to a screen frame, and the projecting frame of the upper frame is fitted to the inside of the lower frame via the screen or fitted and fixed to the fitting groove. A screen printing screen that stretches the screen by using a screen frame that is stretchable and a screen frame with a screen frame In the frame, a screen frame formed by freely fitting the screen frame side to each corner end of the screen frame or the screen frame middle portion so as to be expandable and contractable, and a screen fastening member to which the screen is fixed And a fitting portion or a screen bonding portion for detachably fitting and locking the screen hooking tool on the upper surface of each frame side of the screen frame, and inside each frame side from one end outside each corner. To provide a female screw provided at the other end corner facing the other or a male screw receiver provided with a female screw at an intermediate portion inside the screen frame side, and screwed into the female screw or the male screw receiver at the other end corner. A screen printing screen frame provided with a screen side length extending / contracting means comprising a male screw.

Further, in a screen frame made of a metal or synthetic resin cylinder having a rectangular or rectangular hollow cross section or a concave or L-shaped cross section on which a screen for screen printing is stretched, each frame edge of the hollow cylinder is provided. A part is closed or one end of each frame side of the hollow cylinder is opened, or a screen side is formed by welding or fixing a frame side of a square, concave or L-shaped structure, and the hollow frame side or A predetermined number of screw holes are provided on the inner or outer side surface of the concave frame side, or on both the inner and outer side surfaces and on the side surface and outer surface of the L-shaped frame side, at positions corresponding to the predetermined number of screw holes. A predetermined number of female screw holes are provided, and a tension adjusting bar in which a tension adjusting screw is screwed into the female screw hole is inserted into the hollow portion from the opening of the frame side, or is built in advance or a side surface of the rectangular frame side. On the concave side of the concave frame side or on the side of the L-shaped frame side And the tension adjusting screw is moved forward or backward in the horizontal direction to curve the frame side in the horizontal direction to change the tension of the screen, thereby adjusting image distortion and deviation. Screen printing screen frame, in the method of bonding the mesh or sheet of the screen, fixing method and the method of forming the projections on the screen surface, the screens are joined or overlapped, and the screen is fixed at a stepped portion or Filling of the mesh screen with an adhesive, forming an adhesive layer on the screen or forming projections on the screen surface, and providing a peelable sheet or emboss on the front surface, back surface or front and back surfaces of the bonding or fixing portion. After applying a release sheet, bonding or heat welding with an adhesive, or applying a molding die, filling the molding agent and fixing, the peeling is performed. The sheet, the release sheet or the mold provided with the embossing is peeled off, and the front, back or front and back surfaces of the adhesive or welded portion are formed into gentle slopes, and the seam is smoothly or embossed. It is a method of bonding and fixing a screen of a mesh or a sheet, characterized in that the projections are formed by bonding, bonding or forming projections on the screen surface.

Further, in the method of stretching a screen for screen printing, a screen frame having a screen frame configured so that the side length of the screen frame can be extended and contracted is provided, and a screen hook only having the screen fixed thereto is provided. It is characterized in that the screen has printable tension by hanging a stopper or fixing the screen on the upper surface of the screen frame, and then expanding and contracting the side length of the screen frame by means of expanding and contracting the screen frame side length. In the method of stretching the screen printing screen, in the method of stretching the screen printing screen, in the case of each frame side of the screen frame or two adjacent sides or a rectangular or even-numbered side, the two sides facing each other. A hook having a width on one side of an upper surface, a lower surface, an outer side surface, or an inner side surface, the width being movable parallel to the frame side and horizontally outward. The horizontal moving tool having rigidity is disposed on the hook, and the upper surface, the inner side surface, or the outer side surface of the horizontal moving tool is provided with a hook for the screen hook or a fixing portion for the screen. At the same time, the screen locking device to which the screen is fixed is then locked to the locking portion of the horizontal moving device or the screen is fixed to the fixed portion of the horizontal moving device, and the horizontal moving device is moved by the horizontal moving means. In this method, a screen printing screen is stretched so that the screen has a printable tension.

Further, in the method of stretching the screen for screen printing, in the case of each side of the screen frame or adjacent two sides or a rectangular or even side, one of two opposing sides, the upper surface, the lower surface, the outer side surface, or On the inner side surface, a hook portion of the screen hook and a fitting portion of the screen holding member are provided, and the screen hook that fixes the screen is hooked on the hook portion, or the screen is placed on the top or side of the screen frame. Screen, and the screen presser is fitted through a screen to the fitting portion of the screen presser by a screen presser, so that the screen has printable tension. This is a method of stretching a printing screen.

Furthermore, in the screen frame configured to be able to expand and contract the side length of the screen frame, four L-shaped corners and four frame sides provided with fitting insertion holes at both end portions into which the L-shaped corners can be fitted are provided. The L-shaped corners of the screen frame are fitted into the fitting holes of the respective frame sides and assembled, and a screen frame provided with expansion / contraction means for the frame side length of the screen frame, or an L-shaped screen composed of long sides and short sides The four frame sides provided with the insertion holes into which the short sides of the other frame sides disposed opposite to each other are fitted at the ends of the long sides of the frame sides so that the long sides and the short sides face each other. , The short sides are fitted in the fitting holes of the long sides, and the screen frame provided with expansion and contraction means of the frame side length of the screen frame, or divided at an intermediate position between the respective sides of the screen frame. At each end of the four L-shaped frame sides, an insertion hole for inserting the auxiliary frame side is provided, and each of the L-shaped frames is provided. A screen frame in which the four auxiliary frame sides are fitted and assembled at both ends, and the frame side length of the screen frame provided with expansion / contraction means for the screen side frame length is configured to be extendable. The expansion / contraction means of the side length, the horizontal movement means of the horizontal movement tool, and the screen holding means of the screen holding tool include a screw mechanism, a gear mechanism, a cylinder mechanism, a cam mechanism, a spring mechanism, a magnetic repulsion or pulling mechanism, a wedge mechanism, and a lever mechanism. Or, a method of extending a screen printing screen plate, a screen printing screen frame, or a clean printing screen using a motor, air or hydraulic pressure as a driving force as a sliding fitting mechanism.

Further, the hook portion is a screen groove for screen printing, a screen frame for screen printing, or a screen for clean printing in which a fitting groove, a fitting projection, a fitting hole or a plurality of these are provided in a plurality of rows. This is a method of extending a screen, wherein a hooking portion is provided with a fitting groove, a fitting hole or a plurality of rows in which a screen locking tool is engaged, and a bottom screen frame side of the fitting groove, the fitting hole. A screen printing screen plate, a screen printing screen frame, or a clean printing screen extending method in which a detachable space is provided for facilitating attachment / detachment of the screen hooking tool over the entire outer side.

Further, the engaging portion is provided with a fitting groove, a fitting hole or a plurality of rows in which the screen locking tool is engaged, and abuts on the entire area inside the bottom screen frame side of the fitting groove, the fitting hole. , A screen plate for screen printing, a screen frame for screen printing, or a screen for clean printing, in which an elastic buffer is arranged. A plurality of mating holes or these are provided in a plurality of rows, and the fitting groove and the entire surface inside the screen frame side of the fitting hole are in contact with each other, and an elastic buffer and a metal contacting tool are disposed in contact with the elastic buffer. This is a method of extending a screen plate, a screen frame for screen printing, or a screen for clean printing.

Further, the screen presser includes a frame in which a corner fitted inside the screen frame is connected and fixed, a frame in which a corner fitted in a fitting groove provided on the upper surface of the screen frame is connected and fixed, and a fitting provided on the upper surface of the screen frame. This is a method for extending a screen printing screen into a rod-shaped or plate-shaped object having rigidity that fits into a mating groove, or a rod-shaped object having L-shaped rigidity. The screen was fixed to the frame without applying tension to the screen, the screen was fixed to a frame whose corners were connected with a flexible material, and the screen was fixed to a frame with a structure in which the sides of the frame could expand and contract. Objects, screens fixed to frames whose frame corners expand and contract, screens fixed to those with no frame corners connected, screens framed A Zhang 設方 method of fixed screen printing screen in a frame having flexibility surname.

In addition, in the screen for screen printing, the end of each side of the screen is folded back to the upper surface or the lower surface, and is processed into a U-shape, a V-shape, and a U-shape, and is a screen for screen printing. In the method of stretching the screen, the end portion of each side of the screen is folded back, and the bag-shaped portion of the screen processed into a bag shape having both ends opened is provided with a slit in the entire length of the screen side, and each frame side is provided with a slit. A hollow screen frame having an open end is disposed in the hollow portion, and then a rod or rod having an appropriate length of the screen frame side length is inserted into the bag-shaped portion so as to hang on the screen frame side. Stop or insert a plate-shaped object with a screen side length and rotate it by 90 degrees, fix it to the screen frame, or insert an elastic tube with an inlet through the bag-shaped object. Blocked by injecting a gas or liquid to the tube, a method for tensioning a screen printing screen, characterized in that to provide a printable tension to the screen.

Furthermore, in the screen for screen printing, a mark for position recognition is formed or fixed on the printing medium and / or the screen, and each of them is recognized by the image recognition camera, and a displacement or distortion of the image is detected. This is a screen printing screen that adjusts the expansion and contraction of the screen frame, the movement of the horizontal moving tool, or the pressing of the screen pressing tool based on the detection result, and corrects the image shift and distortion. This is a method for manufacturing a simple plane mirror on which an object is stretched, which is a painting canvas or an advertising sheet in which a painting canvas or an advertising sheet is stretched on a frame in a painting canvas or an advertising sheet.

Further, in the screen printing screen, the painting canvas or the advertising sheet, the screen printing screen, the painting canvas or the advertising sheet is processed into a bag shape having both ends opened. Screen, painting canvas or advertising sheet.

According to the present invention, since the portion where the first screen and the second screen overlap with each other is adhered with an adhesive or the like to form a screen, the screen having a stronger tension can be obtained. The movement of the scheduled portion due to the expansion and contraction of the screen can be reduced, the printing accuracy is further improved, and a printed matter with a good finish can be obtained.

を By adopting the above configuration, the strength of the screen is reinforced, the screen can be used for a long time, and the screen is prevented from being wrinkled due to the tension applied to the screen.

The elastic limit and the yield point can be adjusted by adjusting the combination structure of the mesh or sheet screen and the number of sheets to be laminated in order to obtain the accuracy according to the printed matter, and as a result, the elasticity and elasticity suitable for the purpose Sex can be adjusted.

In addition, since the first screen and the second screen except for the image formation scheduled portion are formed in a patchwork shape by joining a plurality of pieces of the same or different screen materials, and small pieces are used, they are discarded as processing waste. Since the amount of the screen material is reduced and the material pieces that have been discarded in the past are used, the amount of the screen material used and the amount of the screen material used as a whole can be saved, and the printing cost can be reduced. Further, even a large screen can be manufactured at low cost.

(4) By plating the entire metal screen of the image forming unit, the plating covers and fixes the intersections of the lines, thereby preventing the screen from being distorted or misaligned during printing.

An adhesive portion is provided at a joint or a stepped portion to smoothly adhere or emboss, so that there is no stagnation of ink and no catch by a squeegee, and the ink is kneaded in the concave portion of the emboss, and the printing finish is improved. effective. In the case of smooth bonding, there is an effect that the life of the screen can be extended. Further, in the case of a small printing material, a plurality of scheduled image forming portions can be provided in the screen, so that the number of screens to be used can be reduced, which is efficient and economical.

In addition, in order to make the screen detachable, using a screen presser, screen hooking device, horizontal moving device, stretchable screen frame, apply printable tension only at the time of printing, and after printing, Since the screen can be stored and transported without applying tension, the storage space is small and the cost is low. In addition, since the screen is stored without applying tension, it is possible to prevent an accident that the screen is extended during storage, and it is effective in extending the life of the screen.

Furthermore, by combining the screen frame that freely adjusts the side length of the screen frame and the screen hook that fixes the screen, the screen can be stretched, the screen stretching force can be adjusted, and the screen hook can be freely attached and detached. Can be

Furthermore, once the screen is fixed to the screen frame and an image is formed on the screen, distortion and deviation of the generated image can be finely adjusted, and the printing accuracy is significantly improved.

If a simple sheet-like mirror, a canvas for paintings, and a sheet for publicity and advertisement are created by the method of stretching a screen according to the present invention, the canvas and advertisement contents can be easily replaced, and it is inexpensive, convenient, and economical. It is a target.

In the present invention, the means for joining, joining, superimposing, overlapping and laminating the screen is used, except for a special screen used for special printing, a normal printing screen is, Tetron mesh (shape) is 180 mesh (wire diameter is 50 microns), stainless mesh (shape) is 500 mesh (wire diameter is 18 microns), and the screen of the sheet is a 100-micron polyester sheet, and the stainless steel sheet is thick. An extremely thin one having a thickness of 150 microns is used.

Therefore, even if a plurality of sheets are laminated and bonded, there is no practical problem at all, and on the contrary, the desired desired flexibility and tension can be obtained.

Although the embodiment of the present invention describes a screen for screen printing, the screen stretching method of the present invention stretches a mesh-like or sheet-like thing to a frame with a certain tension. It can be applied in every case.

For example, when manufacturing display panels (posters, advertisements, slogans, paintings, etc.), metal plates, aluminum foil, synthetic resin plates, synthetic resin sheets, paper, cloth, leather, etc. The present invention can be widely applied to the case where the tension is applied in a state where the tension is applied.

The use of the stretching method of the present invention is also effective when a campus for painting is stretched on a frame.

That is, in the hollow frame provided with the slit, the end of the drawing cloth is folded back to form a bag, the bag-shaped part is arranged in the hollow of the frame, a rod-shaped object is inserted into the bag-shaped part, and the drawing cloth is easily placed on the frame. Can be stretched. Further, the tension can be adjusted by the thickness of the rod-shaped object.

Also, by using the screen frame and the screen stretching method of the present invention, it is possible to create a painting canvas, a simple mirror, and an advertisement / display panel.

Further, by using the stretching method of the present invention, even if an image has a distortion, the distortion can be adjusted to eliminate the distortion, and further, the image can be reduced or enlarged. Also, the screen can be stretched uniformly with strong tension. Further, if a mirror-finished screen is stretched, an extremely lightweight mirror or reflector can be obtained easily and inexpensively, and can be used for various purposes, or may be simply stretched on a frame. It can be used as a substitute for mirrors such as interior decoration and outdoor decoration. Even when placed overhead, there is no danger of falling and it is safe. Further, when it becomes unnecessary, unlike a mirror made of glass or other material, it can be easily disposed and is convenient.

The present invention is also a screen for precision printing, and has a new structure capable of obtaining desired strong tension and elasticity. The screen can be stretched with strong tension on the screen frame, and the elasticity and elasticity of the screen can be adjusted. As a result, during printing, the image has good resilience after decompression and quickly returns to the correct position before decompression, so that precise printing can be repeated. It is intended to obtain a screen printing screen having a new structure capable of precision printing. Another object of the present invention is to jointly use pieces of mesh or sheet screens that have been conventionally discarded as cutting waste, and to produce a large screen and the screen at low cost.

According to the present invention, it is possible to provide a screen having a structure different from the conventional one, in which the tension and the elastic limit can be freely adjusted according to various printing purposes. That is, in consideration of the properties of the printing material, the printing accuracy, and the like, the material of the screen is combined or the configuration of the screen is variously changed to meet this demand.

In addition, a variety of methods are used for forming a print image in the conventional screen printing, and any screen material can be processed to form a target image. There is no problem even if it is adopted for a screen, and it is effective.

According to the configuration of the present invention, first, for printing purposes, a material suitable for image formation is selected, an image is formed, or an image forming scheduled portion is formed, and then the screen is held in consideration of printing accuracy and the like. What is necessary is just to determine the screen structure in consideration of various factors such as the degree of tension, elasticity and elasticity, and a wider selection of image forming and printing conditions, etc. becomes possible as compared with a conventional screen having a simple structure, The degree of freedom in screen creation increases.

Normally, in screen printing, the screen on which an image has been formed is placed slightly (about several millimeters) above the printing material in order to make the ink run out better. Then, ink is applied on the screen, the screen is pressed with a printing spatula called a squeegee, and the ink of the portion where the image is formed is pressed against the printing material to be transferred and printed (floating printing). By increasing the repulsive force by increasing the tension of the floating printing and the tension, the screen can be quickly separated from the printing material after printing, so-called separation of the plate is improved, and printing bleeding can be prevented.

Since screen printing employs the above method, the screen needs to have a certain degree of elasticity. At the same time, since an image is formed on the screen, if the screen has excessive elasticity, the printing will be distorted due to the expansion and contraction of the screen during printing, the position of the image will be shifted, and the printing accuracy will be poor. There was a risk of becoming. Therefore, the screen is required to have a certain degree of hardness and accurate restorability as well as elasticity. Also, in the case of floating printing, if the repulsive force is strong, the interval between the floating steps can be reduced, so that the screen does not need to be stretched so that the printing precision is improved.

In the above-mentioned conventional technology, there is a problem that the screen made of only the polyester-based mesh has elasticity but is not durable and printing accuracy is deteriorated. The stainless steel mesh alone has good durability and printing accuracy, but has poor stretchability, and has a drawback that the image is stretched after being used for a long time and the image is distorted. Further, since the stainless mesh is more expensive than the polyester mesh, there is a problem that the printing cost is significantly increased.

Conventionally, a screen plate for screen printing has been manufactured using a metal mesh that is slightly larger than the portion to be printed and has less elasticity, and has a structure in which a mesh with greater elasticity is arranged around its periphery. However, in the case of precision printing, such as circuit component printing of electronic components, this screen structure is too stretchable, causing image displacement, and is required to respond to those requiring high printing accuracy. was difficult.

Therefore, there has been a demand for a screen with less image movement and suitable for precision printing.

A screen for precision printing is required to have a screen with a certain degree of flexibility, elasticity, and an extremely delicate balance that the image does not move or stops moving only minutely. It is desired that the screen has some flexibility as a whole screen and does not move an image. For this purpose, it is necessary to stretch the entire screen with a stronger tension than the current state, to have a limit point of elongation, and to have an accurate restoring property.

When printing that requires high precision, the mesh is stretched strongly and stretched over the frame in order to prevent the movement of the image due to the expansion and contraction of the screen, but the mesh itself is single and thin, and the mesh is easily broken. However, there is a drawback that the elastic limit is low or the yield point is reached, and it is not possible to stretch more than a certain limit. In the above-mentioned conventional configuration, only a screen plate having relatively soft elasticity can be obtained due to its structure.

Usually, a screen having an image or an image forming portion is a woven fabric of a thin metal wire such as stainless steel having a diameter of a few microns, and a metal plate processed into a mesh shape or a mesh formed by a metal plating image. Was used. Therefore, only the image forming section is made of an expensive material, and the other parts are economical if a screen is made of a relatively inexpensive material, and the production cost of the screen or screen plate can be greatly reduced. Was taken.

(4) In screen printing, as described above, floating printing is performed, so that a force for stretching the screen downward is applied. In order for the screen to maintain durability in addition to the precision of printing, it is necessary to increase the elastic limit and the yield point of the screen itself since it is springy.

However, the screen elasticity, elasticity, and resilience are constrained by many factors such as differences in screen materials used, size and shape of screen frame, number of bonding locations, and differences in adhesives used. This is a field that is difficult to numerically calculate.

Therefore, for the above-mentioned purpose, the above-mentioned object was achieved by increasing / decreasing the number of screens to be screened, instead of a screen having a simple structure consisting of a single screen, instead of a screen having a simple structure. Things.

低 減 Further, reduction of the production cost of the screen of the present invention was realized by the following method.

Many screens used in the image forming section are expensive, including metal meshes.

Conventionally, after making a screen, dimensions are insufficient to make a single screen as a piece, and pieces of various meshes that have been discarded as odd pieces are joined together to create a laminated screen. is there. Even if it is a piece of a screen material having a different kind of material and a different elasticity, a variety of things are stuck together, and the first screen and the second screen are overlapped with each other to form a screen. In contrast, the present invention has found that the screen does not have a non-uniform screen with a biased tension, and that a preferable screen tension averaged over the entire screen can be obtained.

Accordingly, any kind or size of screen material can be used as a screen material without waste and cost can be reduced.

In the first screen, portions other than the image forming section may be patchwork obtained by joining pieces of the same type of screen material or combining and joining pieces of different types of material.

で は In the second screen, pieces of the same type of screen material are joined together, or pieces of different types of screen materials are mixed to form a patchwork shape and joined to the first screen to form a screen.

Therefore, in the patchwork configuration, it is possible to adopt a method of minimizing the size of a portion requiring an expensive screen material and replacing the unnecessary portion with another cheap material to reduce the cost.

Next, the method of bonding these screens will be described.

(4) When several screens are laminated and bonded, a portion where the screens are laminated and bonded has a low elastic limit, and a portion where the overlap is small has a large elastic limit.

According to the present invention, screens having various structures can be obtained by combining the screens. The difference in the configuration causes a slight difference in elasticity, and therefore, it is necessary to use the difference depending on the printing target. By properly using such combinations of various configurations, it is possible to obtain screens capable of precision printing of various configurations. Therefore, it is necessary to select and use a combination in consideration of the size of the printing medium and the required printing accuracy.

Furthermore, when an image is formed on a sheet, the English letter “O” and the Japanese letter “mouth” lose their inner shape, so it is necessary to provide a support to prevent this, and correct characters However, there were restrictions on printing design and functions, which was not preferable from an aesthetic standpoint. Therefore, in a configuration in which an image is formed on a sheet and a mesh screen is superimposed on the sheet and adhered to the sheet, the mesh serves as a supporting portion, so that there is no need to provide a character supporting portion on the sheet, and correct characters are obtained. In addition, there is an effect that there is no restriction on the function in the design of the printing, and the printing of characters that are preferable in aesthetic appearance can be performed.

印刷 In addition, in the case of printing in which ink is applied thickly, if a large number of screens are stacked and the screen itself is given a thickness, the amount of ink stored in the image increases. In the screen printing, an effect is obtained in which the ink held in the image is transferred to the printing substrate, and printing in which the ink is raised can be performed. According to the present invention, it is possible to perform printing in which ink is swelled by superimposing and bonding screens so that a desired portion of an image portion has a necessary thickness.

In addition, when the screens are laminated together, especially when the stainless steel mesh and the tetron mesh are laminated and laminated, the stainless steel mesh is metal against the screen extension when applied with a squeegee-pressing force during printing. Performing the function of a point or resistance point, the tetron mesh acts as a shrinking force upon shrinking and exerts an accurate return force. Therefore, the characteristics of the two are combined, so that the effect of resisting excessive elongation of the screen and contributing to quick return can be obtained, and the screen can be provided with preferable characteristics. When the screen has the above-described preferable characteristics, the image portion or the support portion of the screen can stably hold the set position even when printing is repeatedly performed, and can maintain and improve the printing accuracy.

で は In the following examples of the present invention, the tetron mesh (shape) is 180 mesh (the wire diameter is 50 microns) (manufactured by NBC). The stainless mesh (shape) is 500 mesh (the wire diameter is 18 microns) (manufactured by Osaka Mesh Co., Ltd.). A 100 micron thick polyester sheet (manufactured by Toray Industries, Inc.) was used as the screen of the sheet. The stainless sheet is 150 microns thick (made by Nippon Steel).

(4) When it is necessary to stretch the screen on the screen frame 2, the frame used is 550 mm × 650 mm and the pipe diameter is 30 mm × 40 mm.

Another object of the present invention is to minimize the occurrence of distortion or displacement at the intersection of the metal lines of the mesh of the metal mesh screen forming the image forming unit.

This screen metal mesh has a structure in which thin metal wires are woven in a mesh shape like a normal woven fabric, so there are innumerable intersections of metal wires constituting the mesh, and they are stretched by applying strong tension. When printing on a screen, if the squeegee presses vertically downward, the intersection of the metal wires will be distorted and displaced, which is one of the causes of lowering the printing accuracy.

Therefore, if the occurrence of the distortion and the displacement of the mesh is minimized, the occurrence of the distortion and the displacement in the image is reduced, and it is possible to greatly contribute to the improvement of the printing accuracy.

According to the present invention, a plating layer is formed or welded at a crossing point of a mesh, a crossing point of a metal wire or a synthetic resin wire by plating, and a mirror-like metal wire surface of the metal wire including the crossing point of the metal wire is formed. An object of the present invention is to cover and fix, and to minimize the occurrence of deviation during printing.

Screen Even if a combination of different types of screen materials is combined or joined to form a combination, a metal-plated mesh may be used, and it is needless to say that this is effective.

By plating the entire metal screen or fixing the synthetic resin wire, the plating covers and fixes the intersections of the wires, and the intersection of the synthetic resin wires is fixed, causing distortion and misalignment of the screen during printing. Can be prevented.

INDUSTRIAL APPLICABILITY The present invention can be used for printing mainly for preventing image distortion and displacement, for example, printing such as high-precision printing. Thereby, the effect of improving the dimensional accuracy of printing can be obtained.

In addition, the metal mesh used for the material of the screen printing image forming unit has a line shape of the material, and the surface of the line is processed extremely smoothly regardless of the thickness of the line, and has a substantially mirror-like shape. , Reflects light well.

This material is mainly made of stainless steel, but stainless steel, copper alloy, iron alloy, nickel alloy, synthetic resin, etc. are used, but when the material is metal, the wire surface has a smooth mirror surface. It is still the same.

To form an image for screen printing, apply a photosensitive agent by light to the image forming section, expose the image to this by optical means, sensitize the photosensitive agent, photosensitive harden the photosensitive agent, fix the image, The unexposed photosensitive agent in the non-exposed portions is washed and removed to form an image.

際 When exposing this photosensitive agent by exposure, irradiate it with strong light. This irradiating light is irregularly reflected on the mirror-like line surface, and the light is reflected at an unexpected place, irregularly reflected, and the light is sent to a part other than the irradiated part. As a result, a good image is obtained. Absent.

(4) A sharp print image cannot be obtained from an image formed in a state of irregular reflection.

Therefore, if the surface of the metal wire mesh is plated and coated so as not to cause reflection, it is possible to prevent blurring of the image at the time of image formation due to irregular reflection. In order to prevent diffuse reflection, the mesh for image formation is plated with black, such as black chrome plating or black nickel.

In addition, in addition to the black chromium plating, the surface of the mirror-finished metal wire may be covered with a plating layer having a property of preventing irregular reflection so that irregular reflection does not occur.

By adopting the above-mentioned various means, at the time of image formation, light is concentrated and sent only to a target portion, and it is prevented from being irregularly reflected at other locations, and blurring of an image at the time of image formation is prevented. As a result, a sharp image is obtained, and as a result, printing in a good state is obtained.

(4) When an ultraviolet curable resin is used as a light source for image formation, it is also effective to perform plating of a material color that does not absorb ultraviolet light.

In the next invention, a metal mesh plated in advance with a metal is used in an image forming portion of a screen for screen printing.

In screen printing, a metal mesh screen is used for the image forming unit. In the present invention, a metal mesh which has been subjected to metal plating in advance is used. The plating includes metal plating, nickel plating, synthetic resin plating, and the like.

金属 In the metal mesh screen that has been subjected to metal plating and forms the image, the intersections of the metal wires of the mesh are fixed by plating, and the occurrence of mesh distortion during printing can be suppressed.

According to another invention, a plated metal mesh is arranged in an image forming section, a predetermined image is formed on the metal mesh, and plating of the metal mesh portion exposed in the image section by image formation is performed by clear printing. Is obtained by dissolving with an acid or alkali solution to remove.

(4) A photographic photosensitive agent is applied to a metal mesh disposed in the image forming section, and light is applied to the photographic photosensitive agent to form an image.

By this image formation, the mesh is divided into an exposed portion and a portion covered with a photosensitive agent cured by photosensitization, but the intersection of the metal wires is fixed by plating at the portion covered with the photosensitive agent. As a result, the occurrence of image distortion and deviation during printing is suppressed, and a clear image can be obtained from the image portion where plating has been removed.

At the time of printing, the purpose is to obtain a clear printed matter by removing the plating layer where the metal wire of the mesh constituting the image portion is exposed.

ス ク リ ー ン In screen printing using a mesh, a clearer image can be obtained as the metal lines constituting the mesh are thinner. Therefore, a mesh made of thin metal lines can be obtained by removing the plating. Therefore, by forming the image by plating the mesh and removing the exposed plating layer in the image area, the two objects of suppressing the occurrence of image distortion and deviation and obtaining a clear image are achieved. And a clear print is obtained.

Still another aspect of the present invention is to temporarily fix and stretch a screen frame to form an image on the screen frame, and then finely adjust the tension of the screen to remove distortion and misalignment of the screen image and improve printing accuracy. It is intended for that purpose.

The screen may be one in which the screen is directly adhered and fixed to the screen frame, or one in which the screen is stretched over the screen frame using a screen hook.

At present, screen printing is used for various purposes, and it is well known that high printing accuracy is required especially when an electronic circuit is formed by printing.

Even after the screen is stretched and fixed to the screen frame and an image is formed on it, there are many cases where it is desired to fine-tune the screen.

(5) If an image is formed with the screen stretched and fixed, and if the fine adjustment can be performed again, the printing accuracy can be drastically improved.

Accordingly, the present invention provides a method for fitting a metal tension adjusting bar into a hollow portion of a hollow screen frame having one end opened, and a female screw hole provided in the tension adjusting bar, and the inside, outside or inside of the side surface of the frame. The tension adjusting screw holes provided on both the outside and the communication hole are connected and screwed, and the tension adjusting screw is moved in the horizontal direction to the front side or the other side, the frame side is curved, the screen is moved, and once fixed. It is possible to finely adjust the image on the screen after stretching and forming the image.

(4) The tension of the screen can be finely adjusted by moving the tension adjusting screw forward and backward by the tension adjusting screw from the outside of the frame, so that the distortion and deviation of the printed image can be adjusted.

The shape of the cut diameter is a rectangular hollow cylinder made of aluminum or other metal screen frame sides, and only one end of each frame side is welded and fixed in such a manner as to become an opening of the cylinder, thereby forming a screen frame. Form.

The same effect can be obtained even if the cross section of the frame is concave or L-shaped.

螺 Screw holes for screwing the tension adjusting screws are provided at appropriate intervals on the outside, inside, or both outside and inside of the screen frame side. The tension adjusting bars of the entire length of the hollow portion of the open side of the frame provided with the female screw at the positions corresponding to the screw holes are inserted into the respective openings of the screen frame (a total of four).

張力 The tension adjusting bar may be made of metal and have a rectangular cross section, and it is curved by a screw. Therefore, it is preferable that the tension adjusting bar be as hard as possible (hardened or the like).

両 端 Both ends of the fitted tension adjusting bar are fixed to the frame side with fixing screws perpendicularly from the upper side of the frame side, and also function as fixed fulcrums when the frame side in the middle of both fixing points is slightly curved.

Next, the male screw is connected to the screw hole provided on the frame side and the female screw provided on the tension adjusting bar, and is engaged therewith.

A method of finely adjusting the tension of the screen after stretching the screen on the screen frame and forming an image is performed as follows.

The tension adjusting screws are independently adjusted, and the frame sides are pulled forward or pushed out by the adjusting screws, and as a result, the frame sides are slightly moved in the forward or outward direction, so that the screen tensioning force is increased. Can be adjusted.

雄 Alternatively, the rotation of the male screw may be driven by an external servomotor to be rotated.

In addition, using the alignment mark of the image proposed in the present invention, every time one sheet is printed, the alignment mark of the image recognizes by a computer whether or not there is a shift between the printing medium and the image of the screen plate, The necessary adjustment can be made by calculating the distance to be driven and moved.

After the screen is stretched and fixed on the screen frame and the image is formed, the distortion and deviation of the image are moved in and out of the screen frame side from inside or outside, inside and outside, and the tension adjusting screw is advanced and retracted in the horizontal direction to curve the frame side. To make fine adjustments.

The tension adjusting screw may be a set screw having no head, that is, a so-called potato screw provided with a groove for rotation at the top, or a screw having a regular shape with a head.

As in the embodiment, the tension adjusting screw may be provided on only one of the inside and the outside of the screen frame, or may be provided on both sides. Further, if the configuration is such that the adjustment is made with screws from both sides of the frame side, the position adjusted by these two screws is fixed at the position opposed by the two screws, and becomes a so-called double locked state, At the time of printing, since the movement of the finely adjusted position hardly occurs, a screen for screen printing suitable for precision printing is obtained.

湾 曲 Because the curvature of the screen frame is used to make slight fine adjustments, the screen frame is not broken.

The following invention is a fitting groove of a hook portion of a screen hook provided on an upper surface of a screen frame side when detaching the screen hook when a screen is stretched using the screen hook. At the bottom on the outside of the frame side, there is provided a detachable gap for facilitating detachment of the screen hook. When attaching and detaching the screen hook, after shortening the side length of the screen frame slightly shorter, and using this gap to push one side of the hook into the gap from above, other parts of the screen hook can be removed. Since the end part is lifted upward, the attachment / detachment of the screen hook is facilitated.

形状 The shape of the gap is not particularly limited as long as one side of the hook is pressed into the gap from above.

In another aspect of the invention, an elastic buffer for hooking the screen hook is arranged inside the screen groove side of the fitting groove of the hook of the screen hook of the screen frame.

素材 The material of this elastic buffer was made of natural rubber, synthetic rubber, sponge, elastic synthetic resin, etc., and was arranged inside the fitting hole on the top surface of the frame.

に The screen fixed to the screen hook was extended to the screen frame.

The shape of the elastic shock absorber may be a shape that matches the length of each side, a ring shape, or a packing shape in which the entire lengths of the fitting grooves are continuously connected.

By disposing the elastic buffer, the tension of the stretched screen is not biased due to the buffering action of the elastic buffer, an average tension is obtained, and the effect of reducing the occurrence of image distortion and displacement is reduced. is there.

According to the present invention, in addition to the above-mentioned elastic buffer, a metal patch for hooking the screen hook is disposed inside the fitting groove of the hook portion of the screen hook of the screen frame. It was done.

(4) The metal fitting may be a metal fitting, and four fittings each having a length of a fitting hole on one side of a frame side are used.

に The screen fixed to the screen hook was stretched over the screen frame.

By arranging both the elastic buffer and the metal pad, the tension of the stretched screen is not biased due to the buffering action of both, and the average tension is obtained on each side, resulting in image distortion and displacement Has the effect of reducing

An embodiment will be described with reference to FIGS.

The following is a proposal of a screen printing screen having a new structure.

(FIG. 1 shows a state in which the screen is stretched on the screen frame, but in the present invention, the screen is not stretched on the screen frame. This screen can be sold as it is as a product.)

ス ク リ ー ン The purchaser of the screen in this mode may stretch and fix the screen on the screen frame using a screen stretching machine, a traction device, or the like, and then form an image.

(4) A conventional screen in which a screen is stretched in advance is inconvenient because the frame is sturdy and heavy, requiring a great deal of labor and cost in handling, transporting and storing places.

あ れ ば It is convenient and economical if there is something that has been processed in advance and is only fixed to the frame. The following description of the screen is of this form.

FIG. 1 is a conceptual diagram schematically illustrating the relationship between a first screen 3 and a second screen 4 in which a screen for screen printing is provided on a screen frame 2. The screen plate for screen printing 1 is a diagram in a case where the screen frame 2 is stretched while being tensioned. An embodiment will be described with reference to FIG.

A first screen 3 having a portion to be formed and a second screen 4 having no portion to be formed with an image or image are laminated to form a single screen.

FIG. 1 (a) shows the case where the first screen 3 is located at the center of the screen, FIG. 1 (c) shows the case where the first screen 3 is located at the upper left, and FIG. The case where a plurality of sheets are joined to one screen 3, 3a and the second screen 4, 4a is schematically shown. By increasing the number of sheets to be joined, a screen having a patchwork shape can be formed.

I A first screen 3 having an image or a portion to be formed with an image and a second screen 4 having no portion to be formed with an image are joined to form a single screen. In the screen printing screen, the first screen 3 is formed into a patchwork by joining one or a plurality of meshes into a patchwork shape, or by combining a plurality of mesh and sheets into a patchwork shape. Or the second screen 4 is formed by laminating a plurality of meshes or sheets into a patchwork shape, or by combining a plurality of meshes or sheets and joining them together. A screen for screen printing, characterized in that it is in the form of a patchwork or a plurality of these are laminated and bonded. .

の 通 り As described above, the screen structure of the present invention has a structure based on many combinations.

The screen printing screen of the present invention is a screen printing screen in which a first screen 3 having an image or an image forming scheduled portion and a second screen 4 having no image or an image forming scheduled portion are joined. And the size of the screen frame 2 is defined as the size of the outside of the screen frame 2.

Therefore, it is possible to change the first screen 3 having an image or an image formation scheduled portion at the center of the screen or at a place other than the first screen 3 according to the printing purpose.

The first screen and the second screen are fixed by using a photosensitive resin, an instant adhesive rubber-based adhesive, or an epoxy resin-based adhesive. However, the present invention is not limited to this. Depending on the material, welding by heat may be used, but it is necessary to use differently depending on the nature of the material to be fixed.

The first screen 3 forms the first screen 3 into a patchwork shape by joining one or a plurality of meshes into a patchwork shape, or by mixing and joining a plurality of meshes and sheets into a patchwork shape, Alternatively, a plurality of these are stacked and bonded.

Further, the second screen 4 is formed by patching a plurality of meshes or sheets into a patchwork shape, or by combining a plurality of meshes or sheets into a patchwork shape, or by laminating a plurality of them. It is a combination. According to the configuration of the present invention, since there are a large number of bonding points or a plurality of sheets are laminated and adhered, the elastic limit is high, the tensile strength is high, and the screen is stretched with high tension. And a screen capable of precision printing can be obtained by suppressing the occurrence of image position shift. Further, this can be stretched on the screen frame 2 to form the screen printing screen plate 1.

The screen printing screen of the present invention is a screen printing screen that is not stretched over the screen frame 2. In the case of a mesh screen, the screen is coated with a photosensitive resin, and the unexposed screen is sold as it is as a product. You can do it. The purchaser stretches this on the screen frame 2 to form an image on the portion where the image is to be formed, and can use it for screen printing. In addition, a screen fixed to the screen hook 22 may be used.

To prepare the screen plate 1 using a screen that is not bonded and fixed to the screen frame 2, four sides of the screen are pulled by a pulling machine (not shown) with an appropriate strength, and the screen plate is bonded and fixed to the screen frame. It can also be.

In the method of manufacturing the bonded screen, the first screen 3 and the second screen 4 are first bonded. If this method cannot be adopted, another creation method is adopted.

Since the first screen 3 and the second screen 4 are bonded to each other, the screen can be strongly mounted on the screen frame 2, so that the screen plate having a high tension (a screen having a high repulsive force). Thus, a screen can be obtained which satisfies the requirements of both a certain degree of stretchability and fixability of the screen required for precision printing.

The second screen 4 may be bonded to one surface on the upper surface of the first screen 3, one surface on the lower surface, or one surface on both the upper surface or the lower surface. Further, the number of the second screens 4 to be bonded may be such that one or a plurality of the screens are laminated and bonded to the first screen 3 at the above-mentioned locations.

{Circle around (2)} The larger the number of the second screens 4 bonded, the higher the elastic limit of the screens and the more resilient the screen.

The present invention makes it possible to construct a screen by utilizing cut pieces of these screen materials that have not been used and discarded in the past, obtain a screen with improved printing accuracy, and reduce the printing cost. It is to be.

{Circle around (1)} One or a plurality of pieces of the mesh and the screen of the sheet are mixed and joined to form a patchwork shape, which are then laminated and bonded.

切断 In addition, cut pieces of a screen material such as a metal mesh, which are generated during the screen forming process and have a size that cannot form a single mesh screen as they are, have been conventionally discarded as processing waste. In particular, the metal mesh used for the image forming unit for precision printing is made by woven fine stainless steel wires in the order of microns to the mesh, and is extremely expensive (the difference between the highest and lowest price of the metal mesh). Has a difference of about 200 times), resulting in a large amount of waste due to the generation of cutting waste and an increase in cost.

Conventionally, in order to make one screen, dimensions are insufficient, and pieces of various screens that have been discarded without being used as cutting waste are connected to form the first screen 3 or the second screen 4 into a type. By combining different meshes or sheets with a patchwork made of a mixture or a composite, and overlaying the second screen 4 on the first mesh and laminating them, the tension resistance and elasticity of the screen according to the purpose of printing are obtained. And a screen having tension and elasticity suitable for the purpose of printing can be obtained, and a large screen can be manufactured at low cost.

Furthermore, if the screen is joined in a patchwork shape, if the joining method is adopted so that the joint is not easily broken, the jointed portion will be doubled, and this will act like a strong bone, and the screen strength Improve.

ス ク リ ー ン Patchwork screens are also available in the following combinations.

(1) What is composed of mesh fragments.

(2) Those composed of sheet fragments.

(3) A structure composed of a mixture of mesh and sheet fragments.

Further, in the conventional screen, there was a problem that a joint portion between the metal mesh and the resin mesh was easily peeled off. However, with the configuration of the screen of the present invention, the metal mesh was sandwiched between a plurality of resin meshes from both sides. Since the bonding structure is also possible, a double bonding area can be obtained, the bonding strength can be doubled, and a large screen strength can be obtained.

Furthermore, the screens that have been seamed or stuck together may cause a step to occur, and the squeegee may catch on the seam during printing, causing the seam to peel off or damaging the squeegee. The problem of the previous term could be solved at the same time by also proposing a method of bonding or fixing a certain place.

Therefore, a screen having a new structure not seen in the past can be obtained.

Next, an example having a different configuration from the above I will be described with reference to FIG.

II This embodiment has the same basic structure as the invention of I, except that a combination of a mesh and a sheet of the first and second screens and a combination of a mesh and a sheet in the form of a patchwork are laminated and laminated. The numbers are different.

That is, the first screen is made into a patchwork by joining one or a plurality of sheets into a patchwork shape, or by mixing and joining a plurality of mesh and sheets into the basic structure of the first embodiment. Or a plurality of these are laminated and bonded together, and the second screen is patchwork-shaped by joining a plurality of meshes or sheets, or by combining and joining a plurality of meshes and sheets. A screen for screen printing, which is formed in a patchwork shape or a plurality of meshes and sheets laminated and bonded.

こ の This configuration can be selected according to the screen material obtained and the printing purpose. The effect is slightly different due to the difference in the configuration, but is substantially the same as the above-mentioned I.

ス ク リ ー ン By using expensive sheets such as additive metal masks (by electroforming) only at the necessary places, and joining other places with inexpensive sheets, the screen manufacturing cost can be kept low. By changing the thickness of the sheet, it is possible to adjust the transfer amount of the ink to the printing substrate. Multiple printing effects can be performed on one plate.

Further examples of different configurations will be described.

説明 An explanation will be given based on FIG.

III This embodiment has the same basic structure as the invention of I, except that a combination of a mesh and a sheet of the first and second screens and a combination of a mesh and a sheet in the form of a patchwork are laminated and laminated. The numbers are different.

In the basic configuration of I, the first screen 3 is made into a patchwork shape by joining a plurality of meshes or sheets, or is made into a patchwork shape by combining and joining a plurality of meshes and sheets, or It is assumed that a plurality of sheets are laminated and bonded, and the second screen 4 is formed into one piece of a mesh or a sheet, or a plurality of sheets are joined to form a patchwork, or a plurality of meshes and sheets are mixed and joined. A screen for screen printing, characterized in that it is formed in a patchwork shape or a plurality of these are laminated and bonded.

こ の This configuration can be selected according to the screen material obtained and the printing purpose. The effect is almost the same as I, with a slight difference.

っ て も Even if the amount of ink transferred and applied is the same, the size of the mesh is limited to the passage of ink particles due to the size of the mesh, and the sheet is not restricted to the passage of ink particles. By utilizing this difference in properties, different printing effects can be obtained with one plate.

で も Even in a combination of meshes, the amount of ink transferred and applied can be changed, or the angle of the mesh can be changed to match the pattern expression method.

Further, another example having a different configuration will be described.

説明 An explanation will be given based on FIG.

IV In this embodiment, furthermore, the first screen 3 is formed into a patchwork by joining one or a plurality of meshes into a patchwork shape, or by combining a plurality of meshes and sheets into a patchwork shape, Alternatively, the second screen 4 may be a mesh or sheet, or a plurality of sheets may be joined together to form a patchwork, or a plurality of mesh and sheets may be mixed. Into a patchwork shape, or a plurality of meshes laminated and bonded together, and further, the entire upper surface, the entire lower surface, or the entire upper and lower surfaces, or a part of the upper and lower surfaces, One or a plurality of second meshes are arranged in abutting or overlapping manner and fixed to the second screen. It is a screen printing screen, wherein.

For the purpose of reinforcing the screen and adjusting the flexibility, one or more of the second screen is provided on the entire lower surface, the entire upper and lower surfaces, and a part of the upper and lower surfaces of the second screen having no image or image forming portion. The sheets are arranged in abutment or they are overlapped and fixed to the second screen. By arranging the required number of sheets at the required locations, such as by arranging them at abutment, fine adjustment of the elasticity and elasticity of the screen becomes possible.

Further, an example having a different configuration will be described.

説明 An explanation will be given based on FIG.

{V} The purpose of this embodiment is to adjust the elasticity and strength of the screen by laminating the screen on the screen having the structure II and further on the second screen.

In the basic structure of the first embodiment, the first screen 3 is made into a patchwork by joining one sheet or a plurality of sheets to form a patchwork, or by mixing a plurality of mesh and sheets into a patchwork. Or the second screen 4 is made of one of a mesh or a sheet or a patchwork by joining a plurality of the sheets, or a mixture of a plurality of sheets of the mesh and the sheet. Then, the patchwork shape is obtained by joining together, or a plurality of sheets are laminated and attached, and further, the entire upper surface, the entire lower surface, or the entire upper and lower surfaces of the second screen, or a part of the upper and lower surfaces, One or a plurality of the second sheets are abutted or overlapped and arranged, and this is fixed to the second screen. It is a clean printing screen.

Since the screen is extremely thin, even if these are further added to the plurality of screens of the embodiment of I and the screens are bonded together, the elasticity and elasticity are not impaired, and for the purpose of adjusting the elasticity and elasticity, Although a screen is additionally attached, a screen with an increased repulsion is obtained.

Further examples of different configurations will be described.

説明 An explanation will be given based on FIG.

VI In this embodiment, a first screen having an image or an image formation scheduled portion and a second screen having no image or an image formation scheduled portion and having a through hole of the image or the image formation expected portion are overlapped and laminated. And the size of the screen frame, and in a screen printing screen configured as one screen, the first screen is a single mesh or a plurality of superimposed meshes and has a size of the inner method or the outer method, The second screen is made of one mesh or a plurality of meshes, and is overlapped to have a size of the inner method or the outer method, and one or both of the combination of the first screen and the second screen are screens. A screen printing screen characterized by being combined and bonded so as to have a size outside the frame.

ス ク リ ー ン This is a screen structure for adjusting and obtaining the delicate elasticity and elasticity of the screen.

(4) The first screen 3 and the second screen 4 are bonded by the following combinations.

A first screen 3 having an image or an image forming scheduled portion and a second screen having no image or an image forming scheduled portion and having a through hole of the image or the image forming scheduled portion are overlapped and stuck to each other to form a screen frame. In the screen printing screen configured as one screen, the first screen is formed by superimposing one or a plurality of meshes or sheets to have a size of the inner method or the outer method, and the second screen One or more meshes or sheets are overlapped and adhered to each other to obtain the inner or outer size, and one or both of the combination of the first screen and the second screen 4 are outside the screen frame. It is a screen for screen printing characterized by being combined and bonded so as to have the size of the method.

貼 り The bonding of the first screen and the second screen has the following combinations, to put it another way.

FIG. 2 (a) is a diagram in which a screen is stretched over a screen frame 2.

（FIG. 2 (b) shows the first screen 3 having the size outside the screen frame 2 and the second screen 4 having the size outside the screen frame 2.

（FIG. 3 (a) shows the first screen 3 having the size of the inside of the screen frame 2 and the second screen 4 having the size of the outside of the screen frame 2.

FIG. 3 (b) shows the first screen 3 having a size up to an intermediate position of the width of the screen frame 2 of the screen frame 2, and the second screen 4 having a size outside the screen frame 2.

図 FIG. 3 (c) shows the first screen 3 having a size outside the screen frame 2 and the second screen 4 having a size inside the screen frame 2.

図 FIG. 3 (d) shows the first screen 3 having the external size of the screen frame 2, and the second screen 4 having a size up to an intermediate position of the width of the screen frame 2.

(4) In the screens having the different configurations described above, a portion other than the portion where the image is to be formed on the screen has a configuration in which two meshes or sheets, and the mesh and the sheet are laminated and laminated. Due to the difference in the structure of the screen, the elasticity and elasticity are different, and the screen can be adjusted, selected and used according to the printing purpose.

When the screen frame 2 having electric conductivity is used and the metal screen is used for the first screen 3 or the second screen 4 in the above configuration, the metal screen is in contact with the screen frame 2. In printing, the screen is rubbed while being pressed down with a squeegee, so that static electricity is generated. However, when a metal screen is in contact with the screen frame 2, the generated static electricity is passed through the metal screen to the screen frame 2. And then flows from the screen frame 2 to the printing press, and further serves as a ground for discharging static electricity from the printing press to the outside, thereby preventing a spark fire accident due to the static electricity, preventing dust from being absorbed by the electrostatically charged screen, and This has the effect of improving the separation of the screen from the printing medium.

When the screen having this configuration is stretched on the screen frame 2, the screen fixed to the screen frame 2 has one or one and a half screens regardless of the state that the two screen surfaces are bonded together. Alternatively, a structure in which two sheets are stacked and bonded together is obtained. The state of the screen fixed to the screen frame 2 affects the elasticity of the entire screen.

Further examples of different configurations will be described.

説明 An explanation will be given based on FIG.

VII In this embodiment, the first screen 3 is made into one sheet or a plurality of sheets are overlapped with each other to have a size of the inner method or the outer method, and the second screen 4 One sheet or a plurality of sheets are superimposed to have a size of the inner or outer method, and one or both of the combination of the first screen 3 and the second screen 4 is the size of the screen frame outside method. It is a screen for screen printing characterized by being combined in such a manner as to be bonded together.

(4) When the sheets are overlapped or partially overlapped, the amount of ink applied to the print substrate can be adjusted, and the elastic limit can be adjusted.

(4) In the case of the present invention as well, the screen of the embodiment of VI has an effect of adjusting the screen strength and the repulsive force.

(1) The first screen 3 and the second screen 4 are each composed of a sheet in the basic configuration of the embodiment of the VI.

Further examples of different configurations will be described.

説明 An explanation will be given based on FIG.

VIII In this embodiment, a first screen having an image or an image forming scheduled portion and a second screen having no image or an image forming scheduled portion are joined to form one screen, and this is formed outside the screen frame. In a screen printing screen having a size of a method, the first screen is made into one of a mesh or a sheet, or a plurality of sheets are joined to form a patchwork, or a plurality of meshes and sheets are combined and joined. The second screen is made of a mesh or a sheet or a patchwork by joining a plurality of sheets, or a plurality of meshes and sheets. A patchwork consisting of a mixture of pieces and joining them together to form a patchwork, or a stack of these pieces laminated together On over emissions, an image or the image forming scheduled portion with a plurality of locations scattered to provide a screen printing screen, characterized in that it was the size of the external dimensions of the screen frame.

(4) A plurality of images or image forming portions are scatteredly provided on a screen.

With this configuration, it is possible to print a large number of small prints or prints each having a different color on a large screen at once, thereby improving the printing efficiency.

た め For this reason, a large 2m x 4m screen with five images on the screen was created.

説明 An explanation will be given based on FIG.

The following is a proposal for a screen printing screen with a new structure.

A plurality of pieces 4c, 4d, 4e, and 4f of the second screen 4 are arranged on the upper surface of the second screen 4 that supports the first screen 3 having the image forming portion, and the lower portion is placed on the lower portion. Of the second screen.

With the structure in which this screen is reinforced, the second screen is a two-piece screen, so that the screen can be stretched with a strong force, and the movement of the image is reduced, so that more precise printing can be performed. It is possible to do.

Furthermore, the screen fragments 4c, 4d, 4e, 4f used for reinforcing the second screen can be used even if so-called screen shreds, so that there is an advantage that no waste is produced during screen production. In addition, since the bumps are arranged at the abutment, no step is generated at the abutting location (the screen fragments 4c, 4d, 4e, and 4f arranged at the abutment are in a state where the adjacent screen fragments abut. Since there is no paragraph or drop when printing (because they are not overlapped and joined), printing can be performed smoothly without disturbing the movement of the squeegee.

Furthermore, the arrangement in a typical tom-shaped configuration shown in FIG. 4 is effective in preventing the entire screen from being twisted or distorted.

説明 An explanation will be given based on FIG.

The following is a proposal for a screen printing screen with a new structure.

(5) Examples of screens having further different configurations will be described.

ス ク リ ー ン A screen having a structure in which a large number of images are formed on one screen.

In a screen printing screen, a plurality of images or image forming portions are scatteredly provided on the screen or on the screen described in Examples 1 and 2, and the image or image forming portions are provided with a ridge surrounding 5 or a section. A screen printing screen characterized in that the projected ribs 6 and 6a are provided on the upper surface of the screen.

{Circle around (3)} The image or image forming portions 3, 3a, 3b, 3c, 3d are scatteredly provided on the screen, and the ribs 5 surrounding the image or image forming portion are provided. The ribs 6 and 6a may be formed by raising an adhesive around an image or a portion where an image is to be formed and solidifying the same, or by forming a frame of another material and bonding the frames.

{Circle around (6)} The ribs 6 and 6a are provided to separate the image or the image forming section. The partition walls 6 and 6a are formed by raising and solidifying an adhesive at an intermediate position between an adjacent image or a portion where an image is to be formed, or by forming a ridge with another material and bonding the ridge on the screen with an adhesive. It may be formed.

FIG. 5 (b) is an end view of FF.

In the screen having this configuration, when different colors are printed on a large screen, since the ribs of the projections or the surroundings of the projections are present, the inks of different image portions are not mixed at once because the inks of the different image portions do not mix. It is very effective to use different inks.

In screen printing, when a large screen is used, the size is often 5 mx 2 m. In addition, even in the case of overprinting, even a large-size printed material does not always have a picture pattern on the entire surface (often unevenly distributed). Therefore, the screen 3 having a high price is used only at the portion to be printed, and the screens 3a, 3b, 3c, and 3d with a low unit price are used at the other portions, so that the manufacturing cost of the screen can be significantly reduced.

(4) If the type and properties of the ink and the amount of ink transferred to the printing material are different, separate plates need to be prepared. However, if a plate having this configuration is used, one plate is sufficient.

(4) If a large number of images 3, 3a, 3b, 3c, 3d, etc. are formed on a large screen and are printed at a large number of places at once, the printing efficiency can be greatly improved and the cost can be reduced.

(4) When a large screen is manufactured by using one or two kinds of small screens, it is necessary to use a large amount of expensive meshes, which is very expensive. This large screen also has the disadvantage that the larger the screen, the greater the stretchability.

(4) In the case where the printing medium is small, a small image or an image forming portion is formed on a screen. However, even a small image requires one screen, which is extremely uneconomical.

(4) If a plurality of images or image forming units having the same contents or different contents are provided in the screen and printed, a large number of prints can be performed at one time, which is efficient. According to the size of the screen, an appropriate number of images or print portions are provided. In the laminated screen, the screen is hard and has little elasticity. Therefore, even if a large number of images or image forming portions are provided in one screen, a decrease in printing accuracy is small, and a screen that can withstand practical use can be manufactured.

In the case of providing a large number of images or portions to be formed with images, it is also effective to provide surrounding ridges 5 and partition protrusions 6 and 6a around each screen in order to prevent ink from being mixed.

The following is a proposal for a screen printing screen with a new structure.

ス ク リ ー ン This screen is used when printing on a printing substrate having protrusions or projections.

The screen of the sheet or the screen at a position corresponding to the projection or the projection of the printing substrate, the screen surface at a position corresponding to the projection or the projection, the collision or contact with the screen by penetrating the projection or the projection. A through hole having a size that can be avoided is provided. It is preferable to provide a projection formed by raising an adhesive or the like around the through hole provided in the screen, or to reinforce the periphery of the through hole by attaching a screen of a sheet or the like.

Since the through-holes are provided on the screen surface, the screen may be weakened and damaged by printing.Therefore, in order to reinforce this, on the upper surface, the lower surface, or both the upper and lower surfaces of the screen, a sheet slightly larger than the protrusion or the convex portion is formed. The screen may be configured by arranging fragments.

れ ば If this screen is used, printing can be performed by a normal printing method even on a printing substrate having projections, so that it is efficient.

(4) In screen printing, when there is a projection or a projection on a printing substrate, printing is difficult and if printing is forcibly performed, troubles such as breaking or damaging the screen and distorting the image occur.

Therefore, this is a screen used when printing on a printing substrate having projections or projections on the printing substrate in printing of an electronic circuit or the like. Since the projections can be avoided by penetrating the projections through the through holes provided on the screen, the other portions can be printed in a normal state. Further, by providing a partition wall around the through hole, the leakage of the ink can be prevented.

に よ り This makes it possible to print on a printing material having a projection or a projection on the printing material. In the case of a mesh screen, if a through hole is provided in the mesh, the mesh is frayed and broken, so in order to prevent this, after arranging a reinforcing material composed of a sheet at a place where a through hole to penetrate the projection is provided However, even if a through hole is provided at this location, there is no possibility that the screen is broken. If necessary, the front and back surfaces of the screen may be reinforced. In order to prevent ink from leaking from the through-hole, it is preferable to surround the through-hole with an adhesive or the like formed in a bank shape.

In addition, in the case of a sheet screen or a sheet screen of a combination of patchwork, the through-hole may be provided in the sheet as it is, but in the case of a weak structure of the screen itself, around the position where the through-hole is provided. After a reinforcing material is pasted on the base material in advance, a through hole may be provided.

す る An explanation will be given based on FIG.

The following is a proposal for a screen printing screen with a new structure.

In order to perform precise screen printing, accurate printing cannot be obtained unless both the position of the screen and the position of the substrate are accurately controlled.

This invention is a means for accurately controlling the position of the screen for the purpose of realizing precise printing.

In the screen for screen printing, the screen printing screen is characterized in that the marks 7, 7a, 7b, 7c for printing alignment are provided on the upper surface of the screen or the upper surface, lower surface, or both upper and lower surfaces of the screens described in Examples 1 to 5. is there.

The alignment mark 7 is formed directly on the screen with an adhesive. Further, it may be formed on a screen of a sheet joined by patchwork.

The alignment mark 7a is obtained by processing a metal plate and pasting it on a screen.

The alignment mark 7b is obtained by processing a sheet screen and pasting it on the screen.

The alignment marks 7c are provided on and below the screen (not shown).

ス ク リ ー ン This screen is provided with a sign for printing alignment. Precise positioning of the screen is indispensable for precision printing such as overprinting in printing of electronic circuits. For this purpose, a screen is provided with a mark for printing alignment.

(5) In precision printing, a device is used that can accurately determine the position of a printing medium and accurately adjust the position of a screen plate by a CCD camera or the like (not shown) linked to a computer. This corresponds to a CCD camera installed above, below, or both above and below the screen. It goes without saying that the positioning marker may be in any form as long as it can be recognized by the CCD camera. For example, a circle, a square, a triangle, etc. A method in which a mark is separately formed from a screen material and the mark is attached to the screen may be adopted. Usually, four markers are used, but two markers may be arranged on a diagonal line. Further, it may be processed and arranged on a patchwork screen. The sign may be created by processing the screen itself. Usually, it is provided on the screen front surface, but may be provided on the screen back surface. The material may be a metal, a synthetic resin, or a processed screen material.

Depending on the performance of the CCD camera, the image recognition mark may have a clear contrast, and if formed directly on a mesh screen, a malfunction may occur because the CCD camera cannot identify the mesh mesh and the recognition mark, In this case, it is necessary to select and use a marker having a pattern that is easy to recognize with respect to the background. Therefore, a different type of recognition sign is required for the screen as the background.

位置 The position data obtained by the CCD camera is used for accurate determination and adjustment of the position in conjunction with the computer.

The following is a proposal for a screen printing screen with a new structure.

Various screen materials (mesh, sheet) are used for the screen, and those processed or manufactured using various processing means are appropriately selected as screen materials suitable for the printing purpose. Is a suggestion to use.

The screen of the mesh and the sheet is a mesh or a sheet made of a metal, a synthetic resin, an animal, a plant, a mineral, or a composite material thereof, and the sheet is subjected to a photolithography method, a plating method, an electroforming method, an etching method, a laser processing method. A mesh is formed by processing by a punching method, a luter processing method, a machining method, a molding method or a sandblasting method (sheet processing mesh), and an image is formed on the mesh or a mesh is formed, and the image is simultaneously formed by the processing. Is a screen for screen printing in which is formed.

The usual method of forming an image is to apply a photosensitive agent to the mesh, form an image by exposure, and wash away unnecessary portions of the photosensitive agent by washing with water to complete the image. It is necessary to use it in a mesh form, and the following method is used.

A typical sheet screen is a thin metal plate or a sheet made of synthetic resin, and is a so-called metal mask or resin mask. A sheet of a synthetic resin sheet or a sheet having a thickness of about 0.15 mm is often used. Further, in the case of a special use, the screen sheet is processed into a mesh by various processing methods, and an image is formed on the screen as a mesh.

The photolithography method is a method in which a photosensitizer such as a screen emulsion is applied to a screen, a polymerization reaction is caused by irradiating ultraviolet rays, and the others are washed with water and removed to form an image. To form a coarse mesh mesh.

The plating method is a method in which, for example, a mesh-like groove is carved in a glass plate, plating is applied to the mesh, a mesh is formed in the groove, and the mesh is further grown by plating.

In the electroforming method, an image is formed on a stainless steel plate by the photolithography method, nickel plating is applied, a mesh is formed, and the plating is grown to a thickness of about 0.02 mm.

が あ る There is an additive method (electroforming method) in which plating is grown only on an image portion. There is also a method of forming a plated sheet image on a mesh.

In the etching method, the sheet is processed by a corrosion etching method to form a mesh.

In the laser processing method, a sheet can be processed into a mesh shape by processing with a laser beam.

The punching method is a method in which fine holes are formed in a sheet and processed into a mesh shape.

The molding method is a method of forming a mesh-like material using a molding die.

The sand blast method is a method of processing by blowing fine sand particles together with compressed air.

Router processing is a method in which a sheet is made into a mesh by cutting using a cutting machine linked to a computer.

The metal mesh is a screen obtained by weaving a metal wire, for example, a fine wire of stainless steel into the mesh, and various mesh sizes are widely used for the screen of the image forming unit.

メ ッ シ ュ The synthetic resin mesh is made by weaving synthetic resin fibers such as polyester or polyimide fibers into the mesh.

A typical example of animal-based mesh is a so-called silk screen in which silk fibers are woven into a mesh.

Mesh of vegetable material is made by weaving vegetable fibers such as cotton into the mesh.

メ ッ シ ュ The mesh of mineral raw material is made by weaving metal, glass fiber, etc. into the mesh.

Or a mesh woven using fibers of the above-mentioned various raw materials as a composite raw material.

説明 An explanation will be given based on FIG.

The following is a proposal for a screen printing screen with a new structure.

提案 This is a proposal for a screen structure when a sheet (thin metal plate, synthetic resin plate, etc.) is used in the image forming section.

Sheet screens have poor elasticity compared to mesh screens and the like, but use of a sheet (using a metal plate or the like) may be preferable from the viewpoint of printing and image formation. When the elasticity and elasticity thereof are insufficient from the viewpoint of a printing operation after image formation, the purpose is to impart elasticity and elasticity to the screen.

When a metal mask (a metal plate or a resin plate) corresponding to a sheet is attached to the screen frame, a large number of holes 8 penetrating through the holding portion other than the image portion can be formed to enhance flexibility (FIG. 7 (c)). )).

As the through holes 8, small through holes 8 may be randomly arranged so as to obtain desired flexibility, but rectangular holes 8 are arranged in a geometric pattern as shown in FIG. 7 (c). The shape of the hole 8 does not matter since the effect obtained is not changed. The point is that the through hole 8 may be used. FIG. 7 (d) shows a structure in which sealing pieces 9 for reinforcement are arranged above and below the first screen. The sealing piece also has the effect of preventing ink leakage from the screen during printing. FIG. 7 (e) shows the closed side 9 arranged on the upper surface of the first screen.

On a screen of a sheet having an image or an image forming scheduled portion, a large number of large holes or small through holes 8 are provided on a screen surface other than the image or the image forming scheduled portion, and a range in which the through hole or the through hole is provided is provided. It is made by laminating meshes or sheets.

ス ク リ ー ン The screen of a thin metal plate or a sheet of synthetic resin is a sheet material that is entirely hard and lacks elasticity. Therefore, the elasticity of the entire screen can be increased by providing the through holes 8 in the through holes 8. The elasticity of the sheet screen itself varies depending on the shape, position and number of the through holes 8.

は The number of the through holes 8 is one or more (continuous continuous holes) in one sheet.

The shape and size of the through-hole 8 may be of any shape and size, and the size, number, and location of the through-hole are selected according to the purpose. By providing a configuration in which elongated slits are alternately provided, elasticity can be further increased.

で は If the through-hole 8 is left open in the screen of this sheet, the ink will leak from this hole during printing, so it is necessary to mask it. Therefore, the mesh or sheet 9 is attached to the fragments 9 for both the purpose of masking and adjusting the elasticity. FIG. 7 (b). FIG. 7D is an end view of HH. Alternatively, one sheet or mesh is stuck on the entire surface where the through hole 8 is provided. FIG. 7D shows an example in which the reinforcing side 9 is attached to the lower surface of the screen, and only the upper surface of the screen may be used (FIG. 7E).

In addition, it goes without saying that the mesh screen can be sealed with an adhesive or the like, processed into a sheet shape, and used as a sheet material.

(4) When the large through hole 8 is provided, there is an effect of preventing a crack from entering or tearing due to repeated expansion and contraction. Further, the desired elasticity can be obtained by this configuration.

FIG. 7 (f) shows a state in which the entire periphery of the end of the screen of the sheet is folded back to the upper surface (or may be folded to the lower surface). No) and a fitting hole for fitting. Since the folded portion is doubled, even if the screen is fitted with the screen and then the screen frame side length is extended to apply printable tension to the screen, the screen is less likely to be damaged.

The folded portion may be folded and remain as it is, or may have any structure in which the overlapped portion is fixed with an adhesive or heat welding.

{Circle around (2)} The same effect can be obtained even when the screen end of the mesh is folded on the upper surface or the lower surface, and the resultant is applied with an adhesive (for example, an epoxy resin adhesive or the like) and processed into a sheet.

ス ク リ ー ン The screen can be stretched by using the horizontal moving tool 26, the screen hooking tool 22, the screen frame whose frame side length is stretchable, or the like proposed in the present invention.

In addition, if the purchaser of this screen purchases and places one screen frame on which the screen can be installed in advance, the used screen can be removed and the screen frame can be used from the next time. It is economical because you only need to buy.

FIG. 7 (g) shows a structure in which the entire periphery of the end portion of the screen of the sheet is bent to the upper surface (a structure in which no fitting hole is provided). It is also possible to sell the sheet whose screen is folded back as it is as a product. The folded shape is processed into a U-shape, U-shape, V-shape, etc., which is hooked (hooked) on a hook provided on the screen frame side, etc., to extend the frame side length. The structure allows the screen to be stretched.

{Circle around (2)} The same effect can be obtained even when the screen end of the mesh is folded on the upper surface or the lower surface, and the resultant is applied with an adhesive (for example, an epoxy resin adhesive or the like) and processed into a sheet.

The method of use and effects are the same as those in FIG.

The following is a proposal of a screen printing screen having a new structure and a mesh capable of obtaining a sharp image. It is possible to reduce the occurrence of screen distortion and image displacement.

{(1)} This is an example in which a screen is created by using a mesh of an image forming unit that has been plated in advance.

A stainless steel screen printing metal mesh (360 mesh, wire diameter 16 microns) which had been previously plated with 2 microns of nickel was used.

The screen is stretched and fixed on a screen frame, a commercially available diazo photosensitive emulsion is applied to the image forming portion, and the photosensitive emulsion is exposed to light to form an image. Obtain the formed screen.

(4) By nickel-plating the metal mesh of the image forming unit, the plating covers and fixes the intersections of the mesh lines, thereby obtaining an effect of preventing the screen from being distorted or displaced during printing.

印刷 Printing was performed using this screen, and clear and favorable printing was obtained without distortion or displacement of the image.

(2) Further, the metal mesh used for the material of the image forming unit of the screen printing has a very smooth surface regardless of the thickness of the line due to the linear processing of the material. It is shaped and reflects light well.

This material is mainly made of stainless steel, but stainless steel, copper alloy, iron alloy, nickel alloy, synthetic resin, etc. are used, but when the material is metal, the wire surface has a smooth mirror surface. It is still the same.

To form an image of screen printing, apply a photosensitizing agent by light to the image forming section, expose the image to this by optical means, sensitize the photosensitizing agent, photosensitize the photosensitizing agent, fix the image, The non-exposed portions of the unexposed photosensitive agent are washed away with water and removed to form an image.

際 When exposing this photosensitive agent by exposure, irradiate it with strong light. This irradiating light is irregularly reflected on the mirror-like line surface, and the light is reflected at an unexpected place, irregularly reflected, and the light is sent to a part other than the irradiated part. As a result, a good image is obtained. Absent.

(4) A sharp print image cannot be obtained from an image formed in a state of irregular reflection.

Therefore, if the surface of the metal wire mesh is plated and coated so as not to cause reflection, it is possible to prevent blurring of the image at the time of image formation due to irregular reflection. In order to prevent diffuse reflection, the mesh for image formation is plated with black, such as black chrome plating or black nickel.

In addition, in addition to the black chromium plating, the surface of the mirror-finished metal wire may be covered with a plating layer having a property of preventing irregular reflection so that irregular reflection does not occur.

By employing the above-mentioned various means, in forming a fine image, light is concentrated and sent only to a target portion, and irregular reflection is prevented at other portions. Can be prevented, and a sharp image with clear printing can be obtained.

(4) When an ultraviolet curable resin is used as a light source for image formation, it is also effective to perform plating of a material color that does not absorb ultraviolet light.

The following is a proposal for a screen printing screen with a new structure.

(4) A clear image can be obtained, and the occurrence of image distortion and deviation can be reduced.

This is an example of a screen in which a screen is created by using a mesh formed by plating an image forming portion, an image is formed, and then the plating of the image portion is removed.

(4) A stainless steel mesh (360 mesh, wire diameter 16 microns) plated with 2 microns thick black nickel was used in the image forming portion.

(4) A commercially available photographic photosensitive agent was applied to the mesh, dried and exposed to light to form an image. By image formation, it is divided into a part covered with a photocured photosensitizer and a part where the mesh is exposed, and the metal plating part of this exposed part is immersed in a strong acid solution of a flat plate for 3 minutes, The plating was dissolved and removed, and then washed with water.

(4) In screen printing, clearer images can be obtained as the metal lines constituting the mesh are thinner. Therefore, clearer images can be obtained by removing the plating.

箇 所 In the places where the plating has not been removed, the intersections of the mesh lines are still covered and fixed by plating, so no distortion or displacement of the intersections occurs even by printing.

Accordingly, when printing was performed using the screen that had been subjected to the above-described processing, clear and favorable printing was obtained without distortion or displacement of the image.

The following is a proposal for a screen printing screen with a new structure.

In screen printing screen plates, a mesh or a single screen where the meshes are joined together, or a sheet or a single screen where the sheets are joined together, or a mesh and sheet are mixed to form a joint patchwork shape Either one of the screens was stretched on the screen frame with different tensions in the vertical and horizontal directions, or one screen in which meshes or meshes were spliced, or sheets or sheets were spliced together A single screen, or a screen composed of a mixture of meshes and sheets and formed into a patchwork shape by joining together a plurality of arbitrary screens, wherein the tension of each of the screens is different. Alternatively, stretch the screen frame with different vertical and horizontal tensions, and stack them together. It is a screen printing screen plate according to claim.

I Either a single screen in which meshes or meshes are joined together, a single screen in which sheets or sheets are joined together, or a single screen in which a mesh and a sheet are mixed to form a joint patchwork shape When one of the screens is stretched on the screen, the screen is stretched on the screen frame by changing the tension in the vertical and horizontal directions of the screen, respectively.

II One screen in which meshes or meshes are joined together, or one screen in which sheets or sheets are joined together, or one screen in which a mesh and a sheet are combined to form a joint patchwork In the case of a screen composed of any number of superimposed screens, the screen tension is different for each screen, or the tension in the vertical direction and the horizontal direction are different from each other, and the screens are stretched and then laminated. And a screen.

The screens having different tensions and the screens having different vertical and horizontal tensions may be alternately or appropriately combined.

The following types of screens can be used.

(1) One screen combining a mesh or a mesh.

(2) One screen combining sheets or sheets.

(3) One screen composed of a mixture of mesh and sheet to form a patchwork.

Of the screens configured by combining the plurality of sheets, when mesh screens are overlapped, even when the same type of mesh is used, if the tension is different, the mesh size will be different. There is a subtle difference in elasticity.

Since a slight difference in elasticity is generated by this configuration, it is possible to obtain a good print by selecting a suitable one from these according to the printing purpose and using the one that matches the printing purpose.

{Circle over (2)} With the above-described configuration, there is an effect that a screen with good balance can be obtained by laminating and bonding those having different tensions.

The following is a proposal for a screen hook used for a means for detachably attaching a screen to a screen frame.

The screen hooking device is formed by fixing the screen to the following frame without applying tension to the screen.

Frames with sufficient strength to secure the screen without applying tension to the screen, or frames whose corners are connected and fixed with a flexible material, or frames whose structure allows the corners to expand or contract, or whose corners are not connected and fixed A screen fastening tool 22, wherein the screen is fixed to each of the frames of the flexible material without applying tension.

方法 There are the following methods to stretch the screen using the screen hook.

(1) The screen frame is extended and stretched so that the screen frame is hooked on the hook 25 of the screen hook 22 provided on the frame upper surface of the screen frame so that the screen frame is extended to be in a printable state. The screen is stretched, and after the printing is completed, the screen is fixed to the above-mentioned frame or the like so that the screen can be detached.

枠 The frame for fixing the screen of the screen hooking device has elasticity as a whole, and it is sufficient if the frame is strong enough to fix the screen.

(4) The screen catch 22 itself to which the unused screen is fixed can be sold as a product together with an extendable screen frame. At present, such a product type screen is not sold. The purchaser of the screen hook 22 prepares one screen frame having a screen frame side length corresponding to the screen hook 22 so that the screen frame can be extended and contracted. It is economical because it becomes possible. If the screen hook 22 is attached to the frame on the screen, the screen frame side length is extended, and printing tension is applied to the screen, printing can be performed. After printing is completed, it is sufficient to remove the screen hooking tool from the screen frame and transport and store only the screen hooking tool 22, which is extremely convenient to handle.

The screen hooking tool 22 is a fitting groove, a fitting projection, a fitting hole of a hooking portion 25 provided on the entire periphery of the upper surface of the screen frame side where the screen frame side length is extendable, or a screen provided with these in a plurality of rows. Can be hooked on the hook 25.

(2) A horizontal moving tool 26 is fitted to a horizontally movable hook 25 provided on the screen frame side, and a screen is attached to the horizontal moving tool hook provided on the horizontal moving tool 26. The screen can be stretched by hooking the hook and moving the horizontal moving tool horizontally to the outside of the frame. A detailed description will be given later.

(3) The screen can be stretched by providing a hook on the screen frame side, hooking the screen hook, and fitting the screen holder to the hook.

A detailed description will be given later.

The screens described in the first to ninth embodiments are proposals regarding a screen that is not stretched on a screen frame. The screen of this form can be sold as it is as a product.

The present invention relates to a screen plate in which the screen printing screens described in Examples 1 to 9 are stretched and fixed to a screen frame.

The screen printing screens described in the first to ninth embodiments are screens that are not stretched over the screen frame or screen fixing devices that fix the screens. And the like are stretched and fixed to a screen frame. It is a product in which the screen having the above structure is stretched on a screen frame, and can be sold.

The strength and material of the screen frame may be any strength as long as the screen can be stretched, and may be made of any material such as aluminum, other metals, wood, synthetic resin, and ceramic. Can be anything. The shape is not limited to a rectangular shape, but may be a polygonal shape.

The following is a proposal for a screen printing screen with a new structure.

A first screen having an image forming scheduled portion and a second screen having no image forming scheduled portion are spliced together to form one screen, and this is a screen printing screen plate having a size outside the screen frame. In the above, the first or second screen may be made into a patchwork shape by joining one mesh or a plurality of meshes in the same mesh direction and joining the mesh and the screen of the sheet. Then, the directions of the respective meshes of the mesh are aligned and joined to form a patchwork shape, or a plurality of these pieces are superimposed and stuck together, and the directions of the respective meshes of the meshes of the first screen and the second screen are adjusted. Are attached to the screen frame in parallel or at different angles to the screen frame and overlapped. It is a screen printing screen, wherein.

(4) If the first screen having the image or the image formation scheduled portion is formed by stacking the meshes, the screen becomes thick and the elastic limit can be increased.

The screen part of the mesh constitutes a screen in which the direction of the mesh of the mesh is aligned, and the two sheets are laminated with the direction of the screen mesh aligned parallel to the screen frame or overlapped at different angles. It is stretched over the frame.

(4) With this configuration in which the mesh directions of the meshes are aligned, if the direction of the mesh is adjusted to the moving direction of the squeegee during printing, the image moves less quickly, and the printing accuracy is improved.

場合 When the screen is a mesh, the first and second screens can be stretched at an angle to the screen frame with respect to the direction of the fibers. When the screens of the mesh are stretched at an angle to the screen frame, the movement of the image portion can be reduced as compared with the case where the screens are stretched in parallel.

(4) When the mesh screens are stretched at different angles with respect to the screen frame, the movement of the image portion can be reduced as compared with the case where the screens are stretched in parallel.

モ ア Moire may occur due to the relationship between the halftone dots of the printed image and the meshes of the screen mesh. To correct this, the direction of the mesh can be adjusted to eliminate moiré.

The screen supporting portion in which the second screen 4 has a configuration in which the meshes have different angles between the meshes has a function of reinforcing the strength of the screen and adjusting the elasticity limit, and also has a resistance point of elongation of the screen when each of the meshes has a different direction. Therefore, the movement of the first screen is minimized and the printing accuracy is improved.

説明 An explanation will be given based on FIG.

発 明 This is an invention showing a connection method for joining screen materials (mesh, sheet) together.

According to the present invention, the screens are joined to form a screen having a complicated structure, which is effective for joining the screens.

In a method of bonding and fixing a screen of a mesh or a sheet, and a method of forming projections on a screen surface, the screens are joined or overlapped with each other, and the screen is fixed at a stepped portion or the mesh is screened with a screen adhesive. Stopping, forming an adhesive layer on the screen or forming projections on the screen surface, applying a peelable sheet or a peelable sheet provided with an embossment on the front, back or front and back surfaces of the bonded or fixed portion, and bonding After bonding and heat welding, or applying a molding die and filling and fixing the molding agent, the peelable sheet, the peelable sheet or embossed release sheet or the mold is peeled off, and the adhesive or welded portion, The front surface, the back surface or the front and back surfaces are both formed on a gently sloped surface, and are smoothly or embossed, joined or bonded, or Wherein the mesh or screen method of the adhesive sheet that forms the raised, is a method of forming a projection on the fixing method and the screen surface.

。 The method of bonding the screen and the like will be described.

接着 In the present invention, the bonding, joining, and laminating of screens are often used.

When a small screen is stuck on a large screen, and especially when the screen is configured as a patchwork, one of the pieces is placed on the upper side and the other is placed on the lower side, so a step is inevitable at the joint. appear. If the screen surface is rubbed with a squeegee as it is, smooth movement cannot be performed, and the screen may be caught and the screen may be damaged. Also, in places where screen fragments are overlapped and stuck together, a step can be created without any change. The means for solving this will be described below.

In addition, if a peeling tape having an embossed portion at the joint portion of the screen or a portion of the heat welding or filling is used, the portion subjected to the treatment can be provided with an embossed state, and a squeegee can be used. At the time of printing, the concave surface of the emboss acts as an ink reservoir, and the ink is well kneaded, so that the printing is improved.

(4) There is an effect that the bonding part is strengthened and the bonding part surface is smooth or embossed, so that it is not easily peeled off. In addition, according to this method, when an object to be bonded is in a mesh shape, gluing from the back surface can be performed smoothly.

場合 When the seam is embossed, ink accumulates in the concave portion of the emboss, and the squeegee reciprocates over this, so that the ink is kneaded, which has a good effect on printing.

に も Even when the screen is a mesh or the like and needs to be filled, the peeling tape can be used for efficient and finished work.

In addition, when forming an adhesive layer, projections, and the like on a screen, a large area can be efficiently and uniformly formed using a molding die and an adhesive or a molding agent.

説明 A description will be given based on FIG.

FIG. 8 (a) shows a process of bonding the first screen 3 and the second screen 4 one by one. First, the peelable sheet 17 is applied to the lower portion of the bonding portion and bonded with an adhesive to form a bonding portion 18, and the bonding agent is dried. Next, as shown in FIG. 8 (b), an adhesive portion 18a is formed from the upper surface with an adhesive, and a release sheet is pressed from above to shape the surface of the adhesive portion so as to be smooth, and the adhesive is dried. Then, when the peelable sheet 18a is peeled off, the adhesion is completed. In this case, if a releasable sheet provided with an emboss is used, the emboss can be provided on the processed surface.

8 (c), 8 (d), 8 (e), 8 (f), 8 (g), and 8 (h) show the bonding process of another bonding example. FIG. Detailed description is omitted.

説明 An explanation will be given based on FIGS. 9 and 10.

The following is a proposal on how to stretch the screen to the screen frame.

In the method of stretching a screen for screen printing on a screen frame, a screen frame configured to extend and contract the side length of the screen frame is provided with a hook of a screen hook, and the screen hook is hung on this. Screen printing characterized in that the screen has a printable tension by stopping or fixing the screen to the upper surface of the screen frame, and then extending the side length of the screen frame by means of expanding and contracting the screen frame side length. This is a method in which a screen for display is stretched on a screen frame.

FIG. 9 is a diagram showing a basic concept of a method of extending a screen to a screen frame according to one embodiment of the present invention.

FIGS. 9 (a) and 9 (b) show the directions of arrows 24 and 24a (outside of the screen frame) using the screen fastener 22 to which the screen 22a is fixed and indicating the side length of the screen frame 2 by arrows. And the screen 22a is stretched.

種 々 Various extension means for the two sides of the screen frame are proposed below.

FIG. 9 (c) shows a method in which the screen 22a fixed to the screen frame 2 is extended in the direction of arrows 24 and 24a by extending the length of the two sides of the screen frame, and the screen is stretched on the screen frame. It is.

手段 Various means for extending the side length of the screen frame 2 are proposed below.

す る The following two parts are explained separately.

(A) The screen frame is configured so that the frame side length of the screen frame can be expanded and contracted by using a screen locking tool 22 in which a screen 22a is fixed to a locking portion 25 provided on the screen frame side. To have printable tension.

FIG. 10 does not show the hook 25 provided on the side of the screen frame.

The hook 25 is provided on the top, outside or inside of one of the sides of the screen frame among all sides of the screen frame, two sides adjacent to each other, or a rectangular or even side in the case of an even number of sides. Or a plurality of rows of fitting grooves, fitting protrusions, fitting holes, or the like, into which the screen hooking tool 22 is fitted.

The hook 25 provided on the screen frame side hooks the screen hooking tool 22 on the hook 25, and then extends the screen frame length by the screen frame side length expanding / contracting means. Accordingly, the screen can be stretched on the screen frame in a printable state, and after the printing is completed, the screen frame side length can be expanded and contracted, and the screen hooking tool 22 can be removed.

The expansion and contraction means of the side length of the screen frame includes a screw mechanism, a gear mechanism, a cylinder mechanism, a cam mechanism, a spring mechanism, a repulsion or pulling mechanism by magnetic force, a wedge mechanism, a lever mechanism or a sliding fitting mechanism using a motor, air or hydraulic pressure. It can be performed using driving force or the like.

Furthermore, the screen can be stretched by the following means.

掛 The above-mentioned hook 25 can also be provided on the horizontal moving tool 26. In this case, it is necessary to provide the hook with a width that allows the horizontal moving tool to move parallel and horizontally outward of the outer frame side.

It is provided on the upper surface, the outer side, or the inner side of the horizontal moving tool 26, but a fitting groove, a fitting protrusion, a fitting hole or a plurality of these are provided in a plurality of rows to fit the screen hooking tool 22. The hook 22 is fitted so that it can be hooked.

After hooking the screen hook 22, the horizontal moving means of the horizontal moving tool 26 includes a screw mechanism, a gear mechanism, a cylinder mechanism, a cam mechanism, a spring mechanism, a magnetic repulsion or pulling mechanism, a wedge mechanism, a lever mechanism or The sliding fitting mechanism can be driven by a motor, air or hydraulic pressure.

構成 This is a configuration that can control the tension of the screen by controlling the moving distance of the horizontal moving tool.

{Circle around (2)} This is a method in which a screen 22a for screen printing is stretched over the screen frame using a screen frame 20d configured to be able to expand and contract the side length of the screen frame, and a screen hook 22 to which the screen 22a is fixed. The screen fastener 22 (with the screen 22a temporarily provided) in a state where no tension is applied is used.

伸縮 It is possible to adjust the screen tension by expanding and contracting the screen frame side length.

According to this configuration, after the printing is completed, the screen hooking tool 22 to which the screen is fixed can be stored in a state where the screen hooking tool 22 to which the screen is fixed is removed and the tension is not applied to the screen 22a. As a result, an accident that the screen 22a is stretched or deformed during storage is eliminated, the life of the screen 22a is extended, and the screen can be stored or used for a long time. It is most suitable when the same printing is repeated and performed intermittently or periodically at intervals.

According to this method, after printing is completed, the screen hook 22 to which the screen 22a is fixed can be removed from the screen frame 2 and stored. In addition, the storage only needs to store the latch 22 to which the non-bulky screen is fixed, and it is economical because it does not require a storage space. In addition, no effort is required for transportation.

れ ば After printing is completed, it is convenient to remove it, store and transport it, because it is light and not bulky.

That is, in a screen frame configured to be able to expand and contract the side length of the screen frame, the four frame sides provided with four L-shaped corners and insertion holes into which the L-shaped corners can be inserted at both end portions are the four frame sides. The L-shaped corners of the screen frame are fitted into the fitting holes of the respective frame sides and assembled, and a screen frame provided with expansion / contraction means for the frame side length of the screen frame, or an L-shaped screen composed of long sides and short sides The four frame sides provided with the insertion holes into which the short sides of the other frame sides disposed opposite to each other are fitted at the ends of the long sides of the frame sides so that the long sides and the short sides face each other. , The short sides are fitted in the fitting holes of the long sides, and the screen frame provided with expansion and contraction means of the frame side length of the screen frame, or divided at an intermediate position between the respective sides of the screen frame. At each end of the four L-shaped frame sides, an insertion hole for inserting the auxiliary frame side is provided. A screen configured so that the side lengths of the screen frame can be expanded and contracted, wherein the screen frame is provided with the four auxiliary frame sides fitted and assembled at the ends, and a screen frame provided with expansion / contraction means for the frame side length of the screen frame. It is a frame.

In FIG. 10, the inner diagrams of (a), (b) and (c) show the state before the screen side length is extended, and the outer diagrams show the extended state. Further, an example in which the length of the screen corner 19 is different and an example in which the fitting method between the screen corner and the screen side is different are shown.

FIG. 10 (c) is an example using auxiliary sides 21, 21a, 21b, 21c. The auxiliary sides 21, 21a, 21b, 21c may be employed at several places on one side, depending on the size of the screen.

{Circle around (1)} The screen is cut at one location, but it goes without saying that a structure in which any number of locations are cut may be used. A configuration may be employed in which cut sides are repelled from each other, or between a corner and a frame side, or between a corner and a corner, and are expanded and contracted by a pulling structure.

The expansion / contraction means of the screen frame length of the screen frame assembled in the above configuration is a screw mechanism, a gear mechanism, a cylinder mechanism, a cam mechanism, a spring mechanism, a magnetic repulsion or pulling mechanism, a wedge mechanism, a lever mechanism, or a sliding mechanism. The fitting mechanism is performed by a motor, air or hydraulic pressure by a driving force or the like. With a large screen frame (for example, 2 m × 2 m), it is extremely difficult to operate it manually, so a mechanical device is often required.

FIGS. 11 (a), (b), and (c) show an example of insertion and contraction in which a screen frame is inserted so as to be expandable and contractible (a cross section of a portion where a frame side that slides and expands and is inserted). is there. The shape of the frame side is not limited as long as the frame side length can be expanded and contracted by sliding and inserting.

FIGS. 12 (a) and 12 (b) show a fitting example in which a screen frame is fitted and inserted so that the side length of the frame side can be extended and contracted. (A cross section of a place where the fitting is performed). The shape of the frame side is not limited as long as the frame side length can be expanded and contracted by sliding and inserting.

(4) The expansion / contraction means of the side length of the screen frame can expand / contract each screen frame side by a cylinder mechanism, a cam mechanism, a spring mechanism, a jack mechanism, a repulsion or drawing mechanism by an electromagnet, a lever mechanism or a slider mechanism.

装置 Attach a device equipped with these mechanisms inside or outside the screen frame and operate it to expand or contract the screen frame side length.

The screen retaining member 22 is a frame having a strength capable of fixing the screen with a tension that does not cause wrinkles, a frame having a strength sufficient to fix the screen without applying tension to the screen, or a corner of the frame having flexibility. The frame has a structure in which the corners of the frame are fixed and connected, or the frame has a structure in which the corners of the frame expand and contract, or the frame is not connected and fixed in the corners or the frame is made of a flexible material.

(4) The screen hooking tool 22 has a mechanism or function capable of expanding and contracting along the extension of the screen frame side length, within a certain allowable limit.

The engaging portion 25 of the screen retaining member 22 is provided with a fitting groove or a dovetail for retaining the screen retaining member 22 provided on the upper surface of each side of the screen frame, the outer or inner side, or the upper surface of two adjacent sides, the outer or inner side. It is a pattern or a drop-in structure, or the upper surface of each side of the screen frame, the projection provided on the outside or the inside is fitted with the fitting hole provided in the screen hooking tool 22, or the upper surface of each side of the screen frame, the outside or the inside The fitting holes or projections provided on the screen and the fitting holes or projections provided on the screen locking device, or the screen locking device is fixed to the upper surface, outside or inside of the screen frame side by screws. is there.

(B) A case in which the screen 22a is directly fixed to the screen frame 20d in which the side length of the screen frame is configured to be expandable and contractable so that the screen 22a has a printable tension.

{Circle around (2)} The case where the screen is directly stretched on the stretchable screen frame 20d without using the screen hooking tool 22, and then the screen frame side length is extended to give the screen printable tension.

In this case, since the screen is directly fixed to the screen frame 20d, it is not detachable, but the tension of the screen can be changed by adjusting the degree of extension of the screen frame side length. In this case, after the printing is completed, if the unnecessary screen is peeled off, the screen can be used again.

(4) The method of expanding and contracting the screen frame side length is the same as described above, and thus the description is omitted.

説明 Description will be given based on FIG.

The following is a proposal for a screen frame used for the method of stretching the screen on the screen frame.

(4) However, in this screen frame, the hook 25 of the screen hook 22 provided on the screen frame is not shown and is not shown.

In a screen printing screen frame in which a screen is fixed to the frame side and a screen fixing device to which the screen is fixed or the screen is fixed to the frame side, the screen frame for screen printing is stretched. A screen frame formed by freely fitting a screen frame side or a screen frame side middle portion into a portion so as to be expandable and contractible, a screen fixing member to which the screen is fixed, and an upper surface of each side of the screen frame In addition to providing a fitting portion or a bonding portion of the screen to which the screen hook is detachably fitted and hooked, and penetrating through the inside of each side from one end outside each corner, to the opposite other corner A female screw receiver having female screws at both ends is provided at an intermediate portion of the provided female screw or screen frame side, and the female screw or the male screw at the other end corner is provided. A screen printing screen frame, characterized in that a and stretching means of the screen side length consisting of a male screw screwed into only.

(4) The invention uses the screen hooking tool 22 and is used in combination with a screen frame capable of expanding and contracting the screen frame side so that the screen can be detachably attached.

With this configuration, after printing is completed, the screen can be stored with the screen fixing member 22 to which the screen is fixed being removed and with no tension applied to the screen. As a result, an accident that the screen is stretched or deformed during storage is eliminated, the life of the screen is extended, and the screen can be stored or used for a long time. It is most suitable when the same printing is repeated and performed intermittently or periodically at intervals.

According to this method, after printing is completed, the screen hook 22 to which the screen is fixed can be removed from the screen frame and stored. In addition, the storage only needs to store the holding frame to which the non-bulky screen is fixed, and it is economical because it does not require a storage space. In addition, no effort is required for transportation.

れ ば After printing is completed, it is convenient to remove it, store and transport it, because it is light and not bulky.

(1) FIG. 13 shows the structure of a screen frame configured to be extendable and contractible. (The screen hook 22 and the hooks of the screen hook 22 are not shown).

ス ク リ ー ン The screen frame is formed by slidably fitting the ends of the L-shaped screen corners 14, 14a, 14b, 14c to the opposed L-shaped corners.

(4) Assemble the screen frame by screwing 15,15a, 15b, 15c male screws outside the screen corners with female screws 16,16a, 16b, 16c provided at the opposite screen corners.

頂 The top of the male screw is provided with a fitting hole for a hexagon wrench that is rotated with a hexagon wrench. The top of the male screw is loosely fitted so as to remain in the corner so that the rotational force applied from the outside can be transmitted to the female screw.

ス ク リ ー ン When the male screws 15, 15a, 15b, 15c are rotated left and right, the sides of the screen frame expand or contract.

雄 The rotation of the male screw may be driven by an external servomotor to be rotated.

Also, using the image alignment mark proposed in the present invention, each time one sheet is printed, the image alignment mark allows the computer to recognize whether or not there is a shift between the printing object and the screen plate image, The necessary adjustment can be made by calculating the distance to be driven and moved.

伸縮 The screen tension can be finely adjusted by the expansion and contraction of the screen frame side length by the screw, which is useful.

(2) This will be described with reference to FIG.

Although the basic structure of FIG. 13 is the same, a male screw receiver 16d is provided at an intermediate portion in each screen frame. The male screw receiver 16d is provided with female screws 16, 16a, 16b and 16c for receiving male screws at both ends, and is arranged at an intermediate portion in the screen frame and fixed inside the hollow screen frame side. . In the case of a large screen (for example, 2m x 2m), the structure of (1) requires long male screws 15, 15a, 15b, and 15c, but the use of the male screw receiver 16d shortens the male screw, which is convenient. It is.

(4) The function is the same as that of the above (1), and the description is omitted.

説明 Description will be given based on FIGS. 15 to 22.

The following are suggestions on how to install a new screen.

This is a proposal for a means for stretching a screen using a horizontal moving device.
In a method of stretching a screen for screen printing on a screen frame, a horizontal moving tool having a rigid rod-like material and having a hook portion of a screen hooking tool on an upper surface, an inner side, or an outer side is parallel and horizontal to the screen frame. Moving means capable of moving in the outward direction are provided on the screen frame side upper surface, the outer surface, or the inner surface, and then the screen hooking device to which the screen is fixed or two adjacent sides of the screen are fixed to the screen frame upper surface, or The other two sides are fixed to the screen hooking device by hooking on the hooking portion, and this is fitted and hooked on the fitting portion of the horizontal moving device, or if the screen is polygonal, on all sides or rectangular or In the case of an even polygon, a horizontal moving tool fixed to one of the two opposing sides is arranged in the moving means, and the horizontal moving tool is horizontally and parallel to the screen frame side by the horizontal moving means. By moving laterally, a method for tensioning a screen printing screen which is characterized by applying a printable tension to the screen to the screen frame.

FIG. 15 shows the basic concept of the present invention, and is a method of extending a screen on a screen frame by using a horizontal moving tool 26.

On the upper surface of each side of the screen frame 2, there is provided a screen frame 25 having a width that allows the horizontal moving tool 26 having rigidity to move horizontally by the horizontal moving means 27 in the outward or inward direction of the screen frame 2. It is. Next, the horizontal moving tool 26 having rigidity is fitted into the hook 25 provided on the side of the screen frame, and the screen hook 22 to which the screen 22a is fixed is fixed to the upper surface of the horizontal moving tool 26. And is hooked by being fitted to the horizontal moving tool hooking portion 26a provided in the above. In this state, tension is not yet applied to the screen.

Tension the screen next.

Applying tension to or adjusting the tension on the screen 22a by moving the horizontal moving tool 26 in the outward direction of the screen by the parallel moving means 27 to the outside of the screen frame 2 and adjusting the distance of the parallel movement. Is made possible. With this configuration, after printing is completed, the horizontal moving tool 16 is moved in the opposite direction to move the screen hooking tool 22 to release the tension, and the screen hooking tool 22 is made detachable. Can be.

構成 This is a configuration that can control the tension of the screen by controlling the moving distance of the horizontal moving tool.

With this configuration, after printing is completed, the screen can be stored with the screen fixing member 22 to which the screen is fixed being removed and with no tension applied to the screen 22a. As a result, an accident that the screen is stretched or deformed during storage is eliminated, the life of the screen is extended, and the screen can be stored or used for a long time. It is most suitable when the same printing is repeated and performed intermittently or periodically at intervals.

Therefore, according to the present invention, it is convenient to remove the screen after printing and to store and transport the screen because it is light and does not bulky. In addition, no effort is required for transportation.

が あ る There are the following two configurations.

The case where the {I} horizontal moving tool 26 is a four-bar rigid body will be described with reference to FIG.

The horizontal moving tool 26 is a rigid rod-shaped object, and has a horizontal moving tool hooking portion 26a for hooking the screen hooking tool 22 on its upper surface (not shown). The horizontal moving tool hooking portion 26a is a fitting groove, a fitting projection, and a fitting hole that can be fitted in correspondence with the screen hooking tool 22. Provide.

FIG. 15 (a) is an example in which four horizontal moving tools 26 are provided on the upper surface of the screen frame.

FIG. 15 (b) shows a state in which the screen locking tool 22a to which the screen is fixed is fitted to the locking portion 25 of the horizontal moving tool 26, and is moved by the horizontal moving means 27 in the directions of arrows 24 and 24a. The screen can be stretched and the tension can be adjusted (FIG. 15 (c)).

FIG. 15 (g) shows an example in which the horizontal moving device is arranged outside the screen frame.

When the screen holding tool 22 to which the screen is fixed is hooked on the horizontal moving tool 26 and the horizontal moving tool 26 is moved by the horizontal moving means 27 in the directions of arrows 24 and 24a, the screen can be stretched, and In addition to adjusting the tension, it is also possible to adjust the distortion of the image (FIG. 15 (c)).

FIG. 15D shows an example in which the horizontal moving tool 26 is arranged inside the screen frame.

When the screen holding tool 22 to which the screen is fixed is hooked on the horizontal moving tool 26 and the horizontal moving tool 26 is moved by the horizontal moving means 27 in the directions of arrows 24 and 24a, the screen can be stretched, and The tension can be adjusted (FIG. 15 (c)).

{II} A case where the screen is stretched using two horizontal moving tools 26 will be described with reference to FIG.

構造 The difference from the above-mentioned I is that the hook 25 of the horizontal moving tool provided on the upper surface of the two sides of the screen frame is provided not on all sides but only on two adjacent sides.

FIG. 16 (a) shows an example in which two screen moving tools 26 are used on adjacent screen frame sides.

FIG. 16 (b) shows an example in which two screen movers 26 are used outside the adjacent screen frame side.

FIG. 16 (c) shows an example in which two screen movers 26 are used inside the adjacent screen frame side.

枠 The other two sides of the screen hooking tool 22 not fitted on the upper surface of the horizontal moving tool 26 are fitted and hooked on the screen frame 2.

(4) The method of extending the screen is the same as the above-described method in which the horizontal moving tool 26 is moved by the horizontal moving means 27, and thus the description is omitted.

Other structures and functions are the same as those of the above I, and therefore, detailed description is omitted.

な の で The following description is common to the above I and II and will be described together.

FIGS. 17 (a), (b), (c) and (d) show a horizontal moving device hooking portion provided on the horizontal moving device 26 by fitting the horizontal moving device 26 to the hanging portion 25 of the screen frame. It is an end elevation of the section of the state where the screen hooking tool 22 was hooked to 26a. Also, this is an example in which a screw is used for the horizontal moving means 27 of the horizontal moving tool 26.

FIG. 17 (a) shows an example in which the screen frame side 2 has a concave cross section. The tension of the screen can be adjusted by rotating the screw 27 to move the horizontal moving tool 26 forward and backward in the horizontal direction.

FIG. 17 (b) shows an example in which the screen frame side 2 employs a concave shape having a deformed cross-sectional shape.

FIG. 17 (c) shows an example in which the screen frame side 2 has an L-shaped cross section.

FIG. 17 (d) shows an example in which the screen frame side 2 has an L-shaped cross section having an inverted cross-sectional shape.

FIGS. 18 (a), (b) and (c) are diagrams showing the relationship between the screen frame 2 and the horizontal moving tool 26. FIG. FIG. 9 is an end view of a cross section in a state where the screen hooking tool 22 is hooked on a horizontal moving tool hooking portion 26 a provided on the horizontal moving tool 26. Also, this is an example in which a screw is used for the horizontal moving means of the horizontal moving tool 26.

FIG. 18 (a) shows an example in which the horizontal moving tool 26 is arranged inside the screen frame.

FIG. 18 (b) shows an example in which the horizontal moving tool 26 is arranged outside the screen frame.

FIG. 18 (c) shows an example in which a screen frame having a concave cross-sectional shape and a horizontal moving tool 26 having a T-shaped cross-sectional shape are combined.

FIGS. 19 (a), (b), (c), (d) show that the horizontal moving tool 26 is fitted to the hook 25 of the screen frame, and the horizontal moving tool 26 is attached to the horizontal moving tool hook 26a. FIG. 3 is an end view of a cross section showing a state in which a screen hook 22 is hooked. (The horizontal moving means 27 is not shown).

FIGS. 20 (a), (b), (c), FIGS. 21 (a), (b), (c), (d) and FIGS. 22 (a), (b), (c) FIG. 4 is an end view of a cross section showing a state in which a screen hooking tool 22 is hooked on a horizontal moving tool hooking portion 26 a of the horizontal moving tool 26. (The horizontal moving means 27 is not shown).

FIG. 22 shows a so-called recess structure.

20 (a), (b), (c), FIGS. 21 (a), (b), (c), (d) and FIG. The shape is not limited as shown in FIGS. 22 (a), (b) and (c), but it is necessary that the shape be such that it can be fitted and latched with each other.

れ ば If necessary, any shape can be used as long as it can be detachably hooked to the screen hooking tool 22.

Further, the horizontal moving tool 26 is horizontally moved by the horizontal moving means 27 to apply tension to the screen and stop at an appropriate position to complete the tensioning. However, the horizontal moving means 27 is an example of a screw. Alternatively, a device that is driven by a cylinder mechanism, a piston mechanism, a slide mechanism, a cam mechanism, a wedge mechanism, a lever mechanism, or a spring mechanism provided inside or outside the frame to slide horizontally may be provided. With a large screen frame, it is difficult to stretch the screen and adjust the tension unless the mechanical mechanism is used.

The horizontal movement means using screws can rotate the screws manually, but if a motor or the like that can control rotation in conjunction with a computer is used, the large and heavy screen frame 2 can be accurately controlled.

説明 Description will be given based on FIG.

The following is a proposal on how to stretch the screen to the screen frame.

(4) The method of stretching the screen using the horizontal moving tool 26, and the method of attaching and detaching the screen hooking tool 22.

A detachable gap portion 32 for facilitating attachment / detachment of the screen catching tool 22 is provided on the entire outer periphery of the fitting groove of the hooking portion 25 of the screen catching tool 22 on the outer side of the frame side of the fitting groove. Screen printing screen, painting canvas frame, or advertising sheet frame.

説明 Description will be given based on FIG.

According to the present invention, when the screen is stretched using the horizontal moving tool 26, the screen is hung on the horizontal moving tool hooking portion 26a using the screen hooking tool 22, and then the screen hooking tool is used. When the screen 22 is detached, the screen retaining member 22 is provided with a detachable void portion 32 for facilitating attachment and detachment of the screen retaining member 22 all around the bottom of the fitting groove of the retaining portion 25 of the screen retaining member 22. It is.

At the time of attachment / detachment of the screen hooking tool 22 to which the screen is fixed, if one side of the hooking tool is pushed into the gap 32 from above by using this gap 32, the other end of the screen hooking tool 22 is raised. Therefore, it is easy to attach and detach the hook 25 from the fitting groove.

形状 The shape of the gap 32 is not particularly limited as long as one side of the screen hook 22 can be pushed into the gap 32 from above.

The present invention can also be used for a canvas frame for paintings, a sheet frame for advertising, and the like, and a canvas, a sheet for advertising, and the like can be easily stretched.

説明 This will be described with reference to FIG.

The following are suggestions on how to stretch the screen to the screen frame.
According to the present invention, when the screen is stretched by using the horizontal moving tool 26, the horizontal moving tool engaging portion 26a is applied to the entire inner periphery of the fitting groove of the engaging portion 25 of the screen retaining tool 22. The elastic shock absorber 33 is arranged in contact with the elastic shock absorber 33.

(4) Four elastic buffer members 33 made of synthetic rubber and having a fitting groove length of one side of the frame side were used.

ス ク リ ー ン A screen was stretched using the screen hook 22.

By disposing the elastic buffer 33, the tension of the stretched screen is not biased by the buffering action of the elastic buffer 33, and an average tension is obtained on each side, so that distortion and displacement of an image occur. The effect is reduced.

画像 After forming an image on this screen, printing was performed, but clear printing without distortion or displacement was obtained.

説明 This will be described with reference to FIG.

According to the present invention, when the screen is stretched by using the horizontal moving tool 26, the horizontal moving tool hooking portion 26 a, the entire inner circumference of the fitting groove of the hooking portion 25 of the screen hooking tool 22, The elastic cushioning member 33 is in contact with the metal cushioning member 34 and the metal cushioning member 34 is in contact with the cushioning member.

(4) Four elastic buffer members 33 made of synthetic rubber and having a length of a fitting hole on one side of a frame side were used.

ス ク リ ー ン A screen was stretched using the screen hook 22.

By arranging the elastic buffer 33 and the metal pad 34, the tension of the stretched screen is not biased by the buffering action of both, and an average tension is obtained on each side, so that distortion and displacement of the image can be prevented. This has the effect of reducing the occurrence.

画像 After forming an image on this screen, printing was performed, but clear printing without distortion or displacement was obtained.

説明 Description will be given based on FIGS. 25 to 30.

The following are suggestions on how to stretch the screen to the screen frame.
This is a method in which the screen is stretched or the tension is adjusted using the screen holders 28, 28a, 28b, 28c, 28d, 28e, 28g and the projecting frame 11a.

The screen can be easily stretched by using a screen holding member 28 (frame) that fits in contact with the inside or outside of the screen frame or fits into a fitting groove provided on the upper surface of the frame, and the screen can be easily stretched. This is an invention in which the tension force can be easily adjusted by changing the thickness of the frame side of the frame.

(4) The screen is previously fixed to the upper surface of the screen frame with an adhesive or the like so that tension is not applied. Next, the thickness of the screen holding member 28 (frame) is selected in consideration of the strength of stretching the screen. Since the screen is fixed in advance, the screen holding member is pressed in contact with the screen from above the screen, so that the strength of the screen holding member depends on the thickness of the frame of the screen holding member. The screen can be easily stretched by selecting a frame having a thickness that provides a target tension.

時 に When the screen is stretched to the desired strength, fix the frame to the frame side with screws or the like (not shown).

説明 Description will be given based on FIG.

In a screen printing screen plate divided into an upper stage and a lower stage, a projection that fits inside the lower frame below the upper frame or fits into a fitting groove provided inside the frame side of the upper surface of the lower frame. Along with providing a frame, a screen locking device to which the screen is fixed, a locking portion for detachably locking is provided on the outer side of the upper surface of the lower frame side, and the screen locking device is locked to the locking portion, A screen plate for screen printing, wherein the protruding frame of the upper frame is fitted inside the lower frame via a screen or fitted and fixed in the fitting groove.

This is one of the methods of hanging the screen hooking tool 22 on the hooking section provided on the upper surface of the screen frame side to stretch the screen.

The screen hook 22 fixes the screen 22a without applying tension.

A projecting frame 11a is provided at the lower portion of the screen upper frame 11, and a fitting groove 13 is provided on the upper surface of the side of the lower frame 12 to fit the screen locking tool 22, and the screen locking tool 22 having the screen 22a fixed thereto. Is detachably fitted, the screen 22a is pushed down from above the screen by the projecting frame 11a below the screen upper frame 11, and the screen upper frame is overlapped with the screen lower frame. As a result, the protruding frame of the screen upper frame pushes the screen downward, tension is applied to the screen, and the screen is stretched. The upper and lower screen frames fix the screen upper frame 11 and the screen lower frame 12 with screws or the like, and apply tension that allows the screen 22a to be printed.

After printing, remove the upper frame of the screen, remove the screen hook 22 and store it. Only the screen needs to be stored, the storage space is small, and the storage is performed without applying a strong tension. Therefore, there is no danger that the screen is elongated during storage and the image is distorted.

説明 This will be described with reference to FIG.

方法 This is a method in which a frame-shaped holding tool is brought into contact with the side of the frame inside the screen frame to stretch the screen. Do not use screen hooks.

The screen 22a is fixed to the screen frame 2, and the screen is stretched by using a frame-shaped screen presser 28.

The screen 22a was fixed to the screen frame with an adhesive.

The screen is fixed to the upper surface of the frame side of the screen frame 2 without applying tension (FIGS. 26 (a), (b), (d), (f)). The screen may be fixed by a method other than the adhesive, such as heat welding.

Next, the screen presser 28 can be pushed down from above the screen 22a to fit it inside the screen frame 2 and fixed so that the screen can be stretched into a printable state (FIG. 26 (c)).

FIGS. 26 (d) and 26 (e) show an example in which the screen is fixed to the upper surface of the frame side of the screen frame 2; It was fitted and fixed in contact. The frame-shaped holding member 28 and the screen frame 2 are fixed with screws (the screws are not shown).

Since the height of the frame-shaped holding member 28 is made higher (longer) than the height of the screen frame side, it can be made to protrude from the bottom of the frame side. The tension can be adjusted. This is a simple method of adjusting the screen tension.

26 (f) and (g) show an example in which the screen is fixed to the lower surface of the frame side of the screen frame 2. FIG. Using this frame-shaped holding member 28, it was fitted and fixed inside the screen frame 2. The fixing of the screen holding member and the screen frame was performed with screws (the screws are not shown).

Since the height of the frame-shaped holding member 28 is made higher (longer) than the height of the screen frame side, it can be made to protrude from the bottom of the frame side. The tension can be adjusted. This is a simple method of adjusting the screen tension.

説明 Description will be given based on FIG.

FIGS. 27 (a), (b) and (c) show a case in which a hook 25 is provided on the entire top view of the frame side of the screen frame 2 and the screen is stretched by using a frame-shaped holding member 28. It is an example.

Do not use screen hooks.

The screen 22a is bonded and fixed to the outside of the upper surface of the frame side of the screen frame 2.

(4) When the frame-shaped holding member 28 is fitted to the hooking portion 25 and fixed with screws, the screen can be stretched in a printable state. (The screws are not shown). If a screen frame having different widths and depths of the hook portions and a corresponding frame-shaped holding member are prepared, the tension of the screen can be changed by a simple method.

説明 Description will be given based on FIG.

This is a method of using a screen hook and a screen holder to hook the screen holder on the hook 25 provided on the upper surface of the screen frame, and stretch the screen.

２９FIGS. 29 (a), (b), and (c) show a case where a hook for the screen hook 22 on the screen frame side is provided, and the screen hook is hooked on this. The frame-shaped screen presser 28 is fitted on the screen frame side inside through the screen via the screen. Thereby, the screen is stretched. In this configuration, the screen is not bonded and fixed to the frame, so that the screen hook can be freely attached and detached, which is convenient.

FIGS. 29 (d), (e) and (f) show a case where a hook for a screen hook and a hook for a screen presser 28 are provided on the side of the screen frame, and the screen hook 22 is attached to this. Hang on. The frame-shaped screen holding member 28 is provided via a screen, and the frame-shaped screen holding member 28 is fixed to the screen holding member 28 provided on the upper surface of the screen frame. Hang on the hook. Thereby, the screen is stretched. In this configuration, the screen is not bonded and fixed to the frame, so that the screen hook can be freely attached and detached, which is convenient.

説明 Description will be given based on FIG.

The screen 22a is fixed to the screen frame 2, and using an L-shaped screen presser 28, the screen 22a is hooked on a hook of a screen presser 28e provided on the upper surface of the screen frame, and the screen is stretched. It is a method of setting.

The screen 22a was fixed to the screen frame with an adhesive.

FIGS. 29 (a), (b) and (c) show that an L-shaped hooking portion 25 of an L-shaped screen presser 28e is provided on the upper surface of two adjacent frame sides of the screen frame 2. This is an example in which an L-shaped holding member 28e is used. The same applies to the case of two bar-shaped holding members.

The screen 22a is fixed in a state where tension is not applied, and the side provided with the L-shaped hooking portion is bonded and fixed to the outside of the hooking portion 25 and the other two adjacent sides to the upper surface of the frame side.

Next, when the L-shaped presser 28e is fitted to the hook 25 and fixed with screws, the screen can be stretched into a printable state. (The screws are not shown).

構成 This configuration can change the tension of the screen by changing the width and depth of the hooking portion, and the screen holder is simple and economical because only two sides are required.

{Circle around (2)} This is a method in which the screen is stretched using the screen hooking tool 22 and the L-shaped screen pressing tool 28e.

FIGS. 29 (d), (e) and (f) show that a groove-shaped engaging portion 25 for engaging an L-shaped engaging member 28e is provided on the upper surface of two sides of the screen frame 2; The other adjacent two sides are provided with a hooking portion 25 having a cutout outside the upper surface of the frame side. The screen hooks 22 to which the screens 22a are fixed are hooked on the respective hooks 25.

Next, when the screen holding member 28e is fitted into the groove-shaped engaging portion 25 and is fixed to the screen frame 2 with screws, the screen can be stretched into a printable state. (The screws are not shown).

構成 This configuration can change the tension of the screen by changing the width and depth of the hooking portion, and the screen holder is simple and economical because only two sides are required. Further, since the screen is not fixed to the screen frame by adhesion, it can be freely attached and detached.

29 (d), (e) and (f), during printing, the screen holding device 28 is hooked on the hook portion 25 using the screen hooking device 22 to which the screen 22a is fixed. Then, the screen is tensioned so that the screen can be printed. After the printing, the screen holding member 28 is removed, and the screen 22a is fixed to the screen frame in a state where tension is not applied to the screen 22a, and is stored or the screen holding member 22 is removed from the screen frame. In this case, since a strong tension is not applied to the screen 22a, the screen does not extend during storage and the image is not distorted. The life of the screen can be extended.

説明 This will be described with reference to FIG.

Next, as shown in FIG. 30, the screen presser 28 is provided with a frame which abuts on the inside of the screen frame 2 or a frame 28 which is hooked on a hook 25 provided on an upper surface of each side of the screen frame. L-shaped rods 28e or two rods 28f, 28g, which are hooked on the rods 28a, 28b, 28c, 28d having side lengths, or the hooks 25 provided on the upper surface of two adjacent sides of the screen frame, When the screen frame is polygonal, it is a rod-like object (not shown) that is fitted to each of the sides.

(4) The tension of the screen can be adjusted by changing the thickness of the bar of the screen holder 28, which is convenient.

The holding means is provided with a device driven by an electric motor, a pneumatic pressure, a hydraulic pressure, a cam, a lever, a spring, a magnetic force, and a screw of a mechanism for pushing down the screen frame from above. I do.

説明 Description will be given based on FIG.

The following are suggestions on how to stretch the screen to the screen frame.
In the method of detachably attaching a screen for screen printing to a screen frame, the end of each side of the screen is turned back and processed into a bag shape, and a hollow screen frame provided with a slit on the entire length of the screen side is provided with a screen. A bag-shaped part is arranged in the hollow frame, and then a rod having an appropriate screen side length is inserted into each of the bag-shaped parts, or a plate-shaped object having a screen side length is inserted and 90 ° is inserted. Rotate and fix, or insert an elastic tube provided with an inlet by communicating each bag-shaped part of the screen, inject gas or liquid into the tube, seal it, and apply a printable tension to the screen. This is a method in which a screen for screen printing characterized by being hung and stretched is detachably stretched on a screen frame.

方法 This is a method in which a screen for screen printing is detachably mounted on a screen frame and the tension is adjusted.

説明 Description will be given based on FIG. Although an example is shown in which the positions of the slits provided on the sides of the frame are different, the functions are exactly the same.

Either the upper surface, the outer surface or the inner surface of the side of the hollow screen frame 2 may be provided, but a slit 30 having an appropriate width is provided continuously at the above-described location of the frame (FIGS. 31 (b), (d), (e)). ). Next, each end of the screen 22a is bent and processed into a bag shape with both ends opened so that a rod can be inserted into each side.

In the case of fiber screen material, sewing processing such as a sewing machine is used. In the case of synthetic resin, heat welding processing such as high frequency processing is used.

袋 The bag-like portion 29 of this screen is arranged in the slit 30 provided in the hollow screen frame 2. Next, a rod 31 having an appropriate thickness is sequentially inserted into each side of the bag-shaped portion 29 arranged in the hollow portion of the screen frame from an opening provided at the end of the screen frame, and tension is applied to the screen. By changing the thickness of the rod 31, the tension of the screen can be adjusted.

In another method, a plate is inserted instead of a rod, and the plate is rotated by 90 degrees to apply tension to the screen. (Not shown).

In another method, instead of the rod 31, a tube provided with an elastic injection port communicating with the bag-like portion is inserted into the aforementioned bag-like portion 29 (not shown). A liquid or gas (air, gas, or the like) is injected into the tube through an inlet provided in the tube, and is expanded and sealed. The screen tension can be adjusted by adjusting the amount of gas. This method of adjusting the tension of the screen is a method that enables extremely fine adjustment.

FIG. 31 (d) and FIG. 31 (e) are examples in which the positions where the slits are provided are different.

When removing the screen, in any case, the screen can be removed by evacuating the rod, the plate-like object, and the air.

The following relates to a means for accurately recognizing and controlling the position of the screen in relation to a new screen extending method.

In order to perform precise screen printing, accurate printing cannot be obtained unless both the position of the screen and the position of the substrate are accurately controlled.

This invention is a means for accurately controlling the position of the screen for the purpose of realizing precise printing.

In a method of stretching a screen for screen printing on a screen frame, a position recognition mark is arranged on both or one of the printing medium and the screen plate, and this is recognized by an image recognition camera or visually, respectively. A screen printing screen that detects image distortion and expands / contracts the side length of the screen frame, moves the horizontal moving tool, or presses it with the screen presser, adjusts the screen tension, and corrects the image distortion, is put on the screen frame. It is a method of setting.

画像 In precision printing, image distortion is a major problem. First, as a first factor, distortion occurs in a process of processing a print substrate.

場合 If the screen is not stretched evenly, the image will be distorted and correct printing will not be possible. Therefore, a method of arranging a position recognition marker on the printing material and the screen plate, detecting the distortion of the image with an image recognition camera, adjusting the tension of the screen, and obtaining a correct image. This enables printing without distortion.

The means for adjusting the tension of the screen is expansion and contraction of the screen frame side length described in the above embodiment, and there are methods using a screen horizontal moving tool described in the embodiment, a screen depressing tool described in the embodiment, and other methods. Method may be used.

Thereby, the image can be adjusted to obtain a distortion-free print.

The following is a proposal for a simple mirror manufacturing method.

A 300 mm x 500 mm sheet that has been mirror-processed by silver plating and evaporating the surface with a synthetic resin sheet having a thickness of 0.2 mm is pulled to the side of the screen with a screen stretcher to smooth the surface. An adhesive is applied to the upper surface of the frame side of the wooden fixing frame, and the frame is attached from the lower surface of the screen, and the surface is smoothened and fixed. Since tension is applied, the sheet is always stretched smoothly by the contraction force of the sheet.

The method of stretching the frame of the sheet is expansion and contraction of the screen frame side length described in the embodiment, and is a method using a screen horizontal moving tool described in the embodiment and a screen presser described in the embodiment. Description is omitted.

(4) An extremely lightweight mirror or reflector can be obtained easily and inexpensively, and can be used for various purposes. It can be used in a wide range of fields as an alternative to mirrors such as interior decoration and outdoor decoration. Compared to a glass mirror, it is extremely light, so even if it is placed overhead, it can be easily hooked, and it is safe to prevent a fall accident. Further, when it becomes unnecessary, unlike a mirror made of glass or other material, it can be easily disposed and is convenient.

説明 An explanation will be given based on FIGS. 32, 33, 34, 35, and 36.

(4) This is a proposal for a screen frame which enables correction by finely adjusting the tension of the screen, which is caused after the screen is stretched to a printable state.

(4) The hollow screen frame 35, on which a screen for screen printing is stretched and fixed to form an image, and then the tension of the screen can be finely adjusted.

A horizontal (30 mm × 40 mm) metal cylinder (aluminum alloy) (thickness 2 mm) having a rectangular cross section and screen frames 36, 36 a, 36 b, and 36 c consisting of 950 mm × 950 mm, and only one end of each frame The hollow screen frame 35 was formed by welding and fixing in such a manner that the openings 40, 40a, 40b, and 40c of the cylinder were formed.

As shown in FIG. 32, six outer screw holes 39, 39a, 39b, 39c, 39d, 39e, 39f are provided on the outer sides of the screen frame sides 36, 36a, 36b, 36c, and on the screen frame sides, respectively. 39g, 39h, 39i, 39j, 39k, 391, and 39m are provided inside the frame sides with inner screw holes 43, 43a, 43b, 43c, 43d, 43e, 43f, 43g, 43h, 43i, 43j, 43k, 431, 43m, 43n, 430, 43p, 43q, 43r, 43s, 43t, 43u, 43v, 43w are provided, and fixing screw holes 38, 38a, 38b, 38c for fixing tension adjusting bars at both ends of the upper surface of the screen frame side. 38d, 38e, 38f and 38g are provided.

# Each of the four tension adjusting bars is provided with a screw hole into which a tension adjusting screw passing through both side surfaces is screwed. For example, the tension adjusting bar of 37a is provided with 44, 44a, 44b, 44c, 44d, and 44e. The same applies to the other three bars.

From the openings 40, 40a, 40b, 40c on the sides of the hollow screen frame 35, metal (iron, stainless steel) and synthetic resin screen tension adjusting bars 37, 37a, 37b, 37c (25 mm × 25 mm × 900 mm) ) Is inserted into each hollow portion from the directions of arrows 41, 42, 43, and 44, with the length of the entire length of the hollow portion on the side.

張力 Each of the tension adjusting bars is provided with screw holes 42, 42a, 42b, 42c, 42d, 42e, 42f, and 42g for screwing fixed screws at both ends.

(4) A tension adjusting screw screwed into the screw hole from both sides into the tension adjusting bar is fitted into each hollow portion as described above.

Both ends (50 mm from the end) of the fitted tension adjusting bar 37 are vertically fixed with fixing screws 47b and 47c from fixing screw holes provided at the upper end of the screen frame side (not shown, but similarly on other sides). Do) and fix it in the screw hole of the tension adjustment bar. The tension adjusting bar is fixed at the end of the screen frame side, and serves as a fixed fulcrum when the frame sides 36, 36a, 36b, and 36c are curved by a tension adjusting screw at an intermediate portion between the fixing points at both ends.

The tension adjusting bar 37 has a predetermined number of screw holes inside the screen frame side at positions corresponding to the screw holes for adjusting the screen tension by bending the frame side, and can be moved forward or backward correspondingly. And a tension adjusting bar 37 provided in the above is connected to the tension adjusting screws 37, 46a, 46b, 46c, 46d, 46e, 46f, 46g, 46h, 46i, 46j, 46k, 46l, 46m. Is a screen frame for screen printing.

In this embodiment, a so-called potato screw without a head is used, but it goes without saying that a normal headed screw may be used.

The tension adjusting screw and the screw hole on the side of the frame correspond to each other, and the tension of the screen can be adjusted by rotating the wrench 48, 48a as indicated by the arrow 50 from outside the side.

調節 The number of adjustment points by the tension adjusting screw is six in this embodiment, but it is necessary to appropriately increase or decrease the number according to the length of the frame side.

方法 The method of using the hollow screen frame 35 is as follows.

After the screen is stretched and fixed to the hollow screen frame 35 to form an image, the tension adjusting screws 46, 46a, 46b, which are screwed to the tension adjusting bar 37 through the outer screw holes of the screen frame side 36a, 46c, 46d, 46e, 46f, 46g, 46h, 46i, 46j, 46k, 46l, 46m are separately moved in the horizontal direction toward or away from each other, and the tension adjusting screw is moved to the side wall inside the hollow portion of the screen frame side 36a. As a result, by slightly curving the screen frame side 36a, the distortion and displacement of the stretched and fixed screen can be finely adjusted freely.

The rotation given to the tension adjusting screw 46 is manually rotated with a wrench 48, 48a or the like, but may be rotated by an external servomotor.

In addition, each time one sheet is printed using the alignment mark of the image proposed in the present invention, the presence or absence of misalignment between the image of the printing material and the screen plate is recognized by the computer by the alignment mark of the image. Then, it is also possible to calculate the distance to be driven and moved and make necessary adjustments.

印刷 When printing was performed using a screen whose tension was finely adjusted, clear printing without distortion or displacement was obtained.

FIG. 34 (b) is an end view of a cross section of the screen frame in an example in which the cross section of the screen frame has a concave shape 36d. Even in the case of the concave shape, the distortion and displacement of the screen can be adjusted by using the tension adjusting bar 37 and the tension adjusting screw 46. Since the tension adjusting bar is fixed to the frame side from the lower side of the frame side (not shown), the same operation as in the above embodiment can be obtained.

FIG. 34 (c) shows that the screen frame side has an L-shaped cross section 36e, and the distortion and displacement of the screen can be adjusted using the tension adjusting bar 37 and the tension adjusting screw 46. Since the tension adjusting bar 37 is fixed from the lower side of the frame side (not shown), the same operation and effect as those of the embodiment can be obtained. Further, in the example in which the headed screw 36f is used as the tension adjusting screw, It is an end elevation of a frame side section.

FIG. 35 shows the relationship between the tension adjusting bar 37 and the tension adjusting screw 46. This is an example in which two tension adjusting screws are screwed from both sides of the frame side. This is an example in which two upper and lower fixing screws are used for a tension adjusting bar.

FIG. 36 shows the relationship between the tension adjusting bar 37 and the tension adjusting screw 46. This is an example in which one tension adjusting screw is screwed from the inside of the frame. In this example, one fixing screw 38 is fixed to the frame side by using one screw from above the frame side to the tension adjusting bar.

FIG. 37 shows the relationship between the tension adjusting bar 37 a and the tension adjusting screw 46. This is an example in which one tension adjusting screw is screwed from the outside of the frame. In this example, a fixing screw 47c is fixed to the tension adjusting bar by using one screw from below the frame side.

説明 Description will be given based on FIG.

In the twenty-first embodiment, the method of extending the screen printing screen is described. However, when a canvas for painting or a sheet for advertising / promotion is used instead of the screen, the canvas for painting is used as in the case of the screen. This is a method that can easily stretch fabrics and sheet materials for advertisement and publicity.

Fold back the canvas fabric edge and process it into a bag with open ends.

This can be sold as a new product. It is not possible to stretch the drawing cloth on the frame without wrinkles. It is a difficult task for amateur painters who are not specialists. Therefore, by using this processed drawing cloth and the frame, it is possible to stretch the frame very easily without fail.

In the case of an advertisement sheet as well, if this frame and the above-mentioned bag-shaped sheet are used, the next advertisement sheet (such as a signboard) can be quickly replaced with a simple operation.

A canvas for painting or a sheet for advertisement, a canvas for painting or a sheet for advertisement is replaced with a screen for screen printing, and the canvas for painting or the sheet for advertisement is replaced with the stretching method according to the embodiment. To obtain a canvas for painting or a sheet for advertising. The advertisement sheet can be stretched without wrinkles as long as it is a sheet made of cloth or synthetic resin. The extension method is exactly the same as that of the screen printing screen, and the description is omitted.

It is a conceptual diagram which shows the combination state of the 1st and 2nd screen of this invention, (a) is a top view which shows the case where a 1st screen is in the center. (B) is an end view of AA in FIG. 1 (a). (C) is a plan view showing a case where the first screen is at the upper left. (D) is an end view of BB in FIG. 1 (c). (E) is a plan view showing a case where the first and second screens are joined together. (F) is an end view of CC in FIG. 1 (e). (G) is an end view of DD in FIG. 1 (e). Similarly, in the example in which the lengths of the screen edges of the screens on which the first screen and the second screen are overlapped are equal, FIG. (B) is an enlarged end view in which a part of EE is omitted in FIG. 2 (a). Similarly, FIG. 7A is an enlarged conceptual view of an end face in which a part of a cross section of an example of a different length of an end portion of a superimposed screen is omitted. FIG. It is the end view which made the length to the outside method of the screen frame. (B) is an end view in which the first screen has a length up to the middle of the screen frame side and the second screen has a length up to the outside of the screen frame. (C) is an end view in which the first screen has a length up to the outside of the screen frame and the second screen has a length up to the inside of the screen frame. (D) is an end view in which the first screen has a length up to the screen frame outside method, and the second screen has a length up to the middle of the screen frame side. (A) is a plan view of a screen in which screen fragments are arranged in abutment. (B) is an end view of the section of FF in (a). FIG. 2A is a plan view of a screen provided with a large number of image forming units on a screen and provided with ridges surrounding the image forming units or projecting partition walls. (B) is an end view of GG in (a). It is a top view of the screen provided with the mark for printing position alignment. It is a top view of a screen provided with a through-hole in the screen of a sheet, and (a) is a screen plan view provided with a through-hole. (B) is an end view of HH in (a). (C) is the screen top view which closed the through-hole with the piece of the sheet. (D) is an end view of II in (b). (E) is an end view of the screen obtained by pasting the screen on the entire upper surface excluding the image part on the screen of (b). (F) is a cross-sectional end view of the screen of the sheet, in which all edges of the screen edge are folded back to the upper surface, and the folded portions are provided with fitting holes for fitting with fitting protrusions provided on the upper surface of the screen frame. is there. (G) is a cross-sectional end view of the screen of the sheet in a state where all sides of the screen end are folded back to the upper surface. FIGS. 3A and 3B are partially enlarged cross-sectional views of the screen showing a bonding process of the screen, and FIGS. (C) and (d) are partially enlarged cross-sectional views of the bonding process and the screen after bonding is completed. (E) and (f) are partially enlarged cross-sectional views of the bonding process and the screen after bonding is completed. (G) and (h) are partially enlarged cross-sectional views of the bonding process and the screen after bonding is completed. Similarly, in the method of extending the screen, FIG. 7A is a diagram illustrating a relationship between a hook that fixes the screen and a screen frame. (B) is a conceptual diagram in which a hook that fixes the screen is hooked on the screen frame to extend the screen frame side length. (C) is a conceptual diagram in which after the screen is fixed to the screen frame, the screen frame side length is extended to extend the screen. Similarly, FIG. 3A is a plan view showing a screen that is stretchably combined before and after a screen frame side having a screen auxiliary side is expanded. (B) is a top view showing before and after extension of a screen frame side without an auxiliary side. (C) is a plan view showing before and after extension of a screen frame side provided with an auxiliary side at an intermediate portion of the screen frame. It is sectional drawing of the insertion part of the screen frame combined extensibly, (a) is sectional drawing of the insertion part of the screen frame side. (B) is sectional drawing of the insertion part of the screen frame side. (C) is sectional drawing of the insertion part of the screen frame side. Similarly, FIG. 4A is a cross-sectional view of a fitting portion of a screen frame that is extendably combined, and FIG. 4A is a cross-sectional view of a fitting portion of a screen frame side. (B) is sectional drawing of the insertion part of the screen frame side. Similarly, (a) is a plan view of a screen frame configured to be extendable.

13B is a cross-sectional view taken along a line KK in FIG. 13A.
Similarly, in an example in which a male screw receiver is provided in a screen frame that is configured to be extendable and contractable, (a) is a plan view in which a male screw receiver is provided. FIG. 14B is a sectional view taken along line LL in FIG. 14A. Similarly, in the screen frame using the horizontal moving tool, (a) is a plan view of the screen frame fitted with the horizontal moving tool. (B) is an end view showing the state where the horizontal moving tool was fitted. (C) is a diagram showing a state after horizontal movement in a cross-sectional view taken along line MM in (a). (D) is a plan view of the screen frame. (E) is a figure which shows the relationship between the screen frame and horizontal moving tool before horizontal movement. (F) is sectional drawing of NN in (a). (G) is a top view of a screen frame. (H) is an end view showing the state where the horizontal moving tool was fitted.

(I) is a cross-sectional view of OO in (g).
Similarly, in the screen frame using the horizontal moving tool, (a) is a screen plan view in which the rod-shaped horizontal moving tool is fitted. (B) is sectional drawing of PP in (a). (C) is a screen top view in which the rod-shaped horizontal moving tool was fitted.

(D) is a sectional view taken along line QQ in (c). (E) is a screen plan view in which a rod-shaped horizontal moving tool was fitted. (F) is sectional drawing of RR in (e). (G) is an end elevation which shows the state after the horizontal moving tool of the stick-shaped thing moved.
Similarly, it is sectional drawing of the moving means of a horizontal moving tool, (a) is an expanded sectional view of a moving means. (B) is an enlarged sectional view of a moving means similarly. (C) is an enlarged sectional view of a moving means similarly. (D) is an enlarged sectional view of a moving means similarly. Similarly, it is sectional drawing of the moving means of a horizontal moving tool, (a) is an expanded sectional view of a moving means. (B) is an enlarged sectional view of a moving means similarly. (C) is an enlarged sectional view of a moving means similarly. Similarly, in the enlarged cross-sectional view of the horizontal moving tool, (a) is an enlarged cross-sectional view showing a hook of the horizontal moving tool. (B) is an enlarged sectional view similarly showing the engaging part of a horizontal moving tool. (C) is an expanded sectional view similarly showing the hooking part of a horizontal moving tool. (D) is an enlarged sectional view similarly showing the engaging part of the horizontal moving tool. Similarly, FIG. 3A is an enlarged cross-sectional view of the horizontal moving tool, and FIG. 4A is an enlarged cross-sectional view of a hook portion of a screen hook provided on the horizontal moving tool. (B) is an enlarged sectional view of the hook part of the screen hook provided in the horizontal moving tool. (C) is an enlarged sectional view of the hook part of the screen hook provided in the horizontal moving tool. Similarly, FIG. 8A is an enlarged cross-sectional view illustrating a state in which the horizontal moving tool and the hanging tool are hung, and FIG. 7A is an enlarged cross-sectional view illustrating a state in which the horizontal moving tool and the hanging tool are hung. (B) is an expanded sectional view similarly showing the hung state of a horizontal movement tool and a hanger. (C) is an enlarged sectional view similarly showing the hung state of the horizontal moving tool and the hanger. (D) is an enlarged sectional view similarly showing the hung state of the horizontal moving tool and the hanger. Similarly, FIG. 8A is an enlarged cross-sectional view illustrating a state in which the horizontal moving tool and the hanging tool are hung, and FIG. 7A is an enlarged cross-sectional view illustrating a state in which the horizontal moving tool and the hanging tool are hung. (B) Similarly, it is an expanded sectional view which shows the latching state of the horizontal moving tool and the latching tool. (C) Similarly, it is an expanded sectional view which shows the hanging state of a horizontal moving tool and a latching tool. (A) is an expanded sectional view of the space | gap provided in the latch part of the screen latch similarly. (B) is an enlarged sectional view of the space | gap provided in the latch part of the screen latch similarly. (C) is an enlarged sectional view of the space | gap part similarly provided in the latch part of the screen latch. (A) is an expanded sectional view of the example which provided the elastic body buffer similarly in the fitting groove of the latch part of the screen latch. (B) is an enlarged sectional view of an example in which an elastic buffer and a metal fitting are provided in a fitting groove of a locking portion of the screen locking tool. Similarly, FIG. 3A is a plan view of a screen plate, which is a screen frame divided into two upper and lower stages. (B) is a conceptual diagram of the end surface of a screen hook. (C) is an end view of JJ in (a). Similarly, FIG. 3A is a plan view of a screen in which a frame-shaped screen holding member is fitted with a screen frame using a screen holding member. (B) is an end surface conceptual diagram which shows the relationship between the screen holder and the screen frame of the cross section of SS in (a). (C) is an end surface conceptual diagram which shows the relationship between the screen presser and the screen frame of the cross section of SS in (a). (D) is an end surface conceptual diagram which shows the relationship between the screen presser of the cross section of SS, and a screen frame in (a). (E) is an end surface conceptual diagram which shows the relationship between the screen holder and the screen frame of the cross section of SS in (a). (F) is an end-face conceptual diagram which shows the relationship between the screen holder and the screen frame of the cross section of SS in (a). (G) is an end surface conceptual diagram which shows the relationship between the screen holder and the screen frame of the cross section of SS in (a). Similarly, in the screen frame using the screen holder, (a) is a conceptual view of an end surface showing a relationship between the screen holder and the screen frame in a cross section taken along line TT in (a). (B) is an end surface conceptual diagram which shows the relationship between the screen holder and the screen frame of TT cross section in (a). (C) is an end surface conceptual diagram which shows the relationship between the screen presser of a cross section of TT, and a screen frame in (a). Similarly, in a screen frame using a screen hook and a screen presser, (a) is a screen plan view in which the screen presser is fitted. (B) is an end surface conceptual diagram which shows the relationship between a screen holder and a screen frame. (C) is an end view of WW in (a). (D) is an end surface conceptual diagram which shows the fitting state of the screen presser to the screen frame. (E) is an end surface conceptual diagram showing the relation between a screen holder and a screen frame. (F) is an end view of XX in (d). Similarly, (a) is a screen plan view in which an L-shaped restraining tool is fitted in a screen frame using a screen holding tool. (B) is an end surface conceptual diagram which shows the relationship between a screen holder and a screen frame. (C) is an end view of UU in (a). (D) is a conceptual view of an end surface showing the relationship between the screen hooking device and the screen holding device in a screen frame using the screen hooking device and the screen holding device. (E) is an end surface conceptual diagram showing the relation among a screen hook, a screen presser, and a screen frame. (F) is an end view of VV in (d). Similarly, FIG. 2A is a perspective view of a screen holding device, and FIG. (B) is an L-shaped screen press. (C) is a screen holder of four rod-like objects. (D) is a screen holder of two rod-like objects. Similarly, the screen has a bag-shaped end, and (a) is a conceptual view of the screen end. (B) is a conceptual diagram of an end face in which a screen is arranged on a screen frame. (C) is a conceptual view of an end face with a screen stretched. (D) is an end surface conceptual diagram showing the difference in the position of a slit. (E) is an end surface conceptual diagram showing the difference in the position of a slit. Similarly, it is a perspective view with a part omitted of the frame side provided with the tension adjustment bar. Similarly, it is a partially omitted plan view of a frame side provided with a tension adjusting bar. (A) is an end elevation of the frame side cross section of the frame side provided with the tension adjustment bar similarly. (B) is an end view of an enlarged cross section when a frame having a concave cross section is used. (C) is an end view of the enlarged cross section when the frame side has an L-shaped cross section. FIG. 4 is a diagram showing a relationship between a tension adjusting bar, a tension adjusting bar fixing screw, and a tension adjusting screw, wherein an example in which two tension adjusting bar fixing screws are used vertically and two tension adjusting screws are used inside and outside a frame side; FIG. FIG. 4 is a diagram illustrating a relationship between a tension adjusting bar, a tension adjusting bar fixing screw, and a tension adjusting screw, wherein an upper part of a tension adjusting bar fixing screw and one tension adjusting screw are used inside a frame side; FIG. FIG. 4 is a diagram illustrating a relationship between a tension adjusting bar, a tension adjusting bar fixing screw, and a tension adjusting screw, in which an example of using one lower tension adjusting bar fixing screw and one tension adjusting screw outside the frame side is partially omitted. FIG.

Explanation of reference numerals

1 Screen Plate 2 Screen Frames 2a, 2b Fitting Screen Frames 3, 3a First Screens 4, 4a Second Screens 4c, 4d, 4e, 4f Screen Pieces 5 Surrounding Protrusions 6, 6a Partition Protrusions 7, 7a 7b, 7c Positioning marker 8 Through hole 9 Sealing piece 11 Upper frame 11a Projection frame 12 Lower frame 13 Fitting grooves 14, 14a, 14b, 14c L-shaped screen corners 15, 15a, 15b, 15c Male screws 16, 16a, 16b, 16c Female screw 16d Male screw receiver 17, 17a Peelable sheet 18, 18a Adhesive portion 19, 19a, 19b, 19c Screen frame corner 20, 20a, 20b, 20c Auxiliary frame side 20d Extendable screen frame 21, 21a, 21b, 21c Auxiliary frame side 22 Screen hook 22a Screen 25 Hanging section 26 Horizontal moving tool 26 Horizontal moving tool retaining portion 27 Horizontal moving means 28, 28a, 28b, 28c, 28d, 28e, 28f, 28g Screen presser 29 Bag-shaped portion 30 Slit 31 Bar-shaped object 32 Void portion 33 Elastic material buffering device 34 Metal-applied device 35 Hollow screen frame 36, 36a, 36b, 36c Hollow screen frame side 36d Frame side 36e with concave cross section L-shaped frame side 36f Headed screw 36g Deformation tension adjusting bars 37, 37a, 37b, 37c Tension adjusting bar 38 , 38a, 38b, 38c, 38d, 38e, 38f, 38g Fixed screw holes 39, 39a, 39b, 39c, 39d, 39e, 39f, 39g, 39h, 39i, 39j, 391, 39m Outside screw holes 40, 40a, 40b, 40c Opening 41 Arrow 42 Tension adjustment bar fixing screw 43 Inner screw hole 44 Tension adjustment bar 45 Arrows 46, 46a, 46b, 46c, 46d, 46e, 46f, 46g, 46h, 46i, 46j, 46k, 46l, 46m Tension adjusting screws 47, 47a, 47b, 47c, 47d, 47e, 47f, 47g Fixing screw 48 Wrench 49 arrow 50 arrow

Claims (1)

What is claimed is: 1. A screen printing screen, comprising a screen alignment mark provided on the lower surface or upper and lower surfaces of the screen.

Images