JPH10324096A - Method for transfer onto transfer object base having groove-shaped part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for transfer which makes it possible to obtain easily a decorative material or the like having a design of a high degree without transferring an excessive pattern to a groove-shaped part such as a joint. SOLUTION: In a method for transferring a transfer layer 4 onto a transfer object base B having a groove-shaped part 1 forming a recessed or flat shape, by using a transfer sheet S constituted of a substrate 3 and the transfer layer 4, the transfer layer 4 is constituted at least of a decorative layer 5, of which the part corresponding to the groove-shaped part is unformed, and a transfer sheet S having a mark M for registration formed is used. The transfer sheet S is aligned in position with the transfer object base B by using the mark M for registration and the transfer layer is transferred onto the transfer object base B so that the decorative layer 5 is not transferred to the groove-shaped part. As to a pressure of transfer, a pressure of collision obtained by making sold particles collide with the substrate side of the transfer sheet S of which the transfer layer side is opposed to the indented surface side of the transfer object base B is used, for instance.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer method for obtaining various transfer products such as exterior and interior materials of a house, furniture, decorative boards such as home appliances, and the like. In particular, the present invention relates to a transfer method capable of obtaining a high-designed material that can be transferred to a transfer substrate having a groove-like portion such as joints in synchronization with the groove-like portion.

[0002]

2. Description of the Related Art In order to produce a decorative material having a grooved portion such as a tile pasting pattern or a brickwork pattern and a joint by decorating a substrate surface by printing, the grooved portion becomes a tile or a brick. By decorating separately from the surface part, it is possible to realize a real and realistic design expression. There is also a method of using a substrate that does not originally have a groove as the base material, and forming a decorative material by distinguishing the groove and the top with a pattern by printing on the base to make a decorative material. Is the same, and the texture is basically the same,
In this case, a decorative material having an excellent design feeling cannot be obtained. In order to provide a decorative material having a realistic groove-like portion and a superior design feeling, it is necessary to use a substrate having a groove-like portion from the beginning. The groove-like portion of the base material may be a joint having the same height as the top surface, not being depressed, being flat, being exposed to a material different from the top surface (for example, cement), and having a different appearance and texture. However, usually, the groove portion is made of the same or different material, and the groove portion is formed of a concave groove having a concave shape. The groove is usually used as a joint when decoration is applied to finish the decorative material.
Above all, a decorative material having concave grooves such as joints can provide a highly realistic decorative effect due to the unevenness of the concave grooves and the like, in addition to the decorative effect by printing.

[0003] Conventionally, in the case where decoration is applied only to the top surface of a substrate to be transferred having a groove such as a joint as a groove-like portion, Japanese Patent Publication No. 60-59876, Japanese Unexamined Patent Application Publication No. As disclosed in Japanese Patent No. 270199 and the like, using a transfer sheet having a transfer layer having a uniform decorative layer as a transfer layer without a pattern corresponding to the groove portion, selectively only on the top surface,
There was a method of transferring. That is, the transfer sheet having the uniform decorative layer as a transfer layer on the transfer substrate is formed on the transfer substrate by utilizing the unevenness of the concave groove of the transfer substrate and the top surface portion other than the groove. This is a method in which the transfer sheet is placed and pressed with only a top surface portion by pressing with a heat roller made of hard rubber having a JIS rubber hardness of 70 ° or more to transfer the image to only the top surface portion.

[0004] Also, the top surface portion other than the groove portion is
In the case of a tiled pattern or the like, there are many flat surfaces, but in the case of a brickwork pattern or the like, the top surface also has considerable unevenness. Therefore, in order to make a decorative material with a groove-like part a high design including the top surface part,
It is necessary to be able to decorate the uneven surface by printing even on the substrate whose top surface portion forms the uneven surface. 2. Description of the Related Art Conventionally, as a curved surface decoration technique by transfer to a transfer substrate having surface irregularities, for example, there is a technique proposed in Japanese Patent Application Laid-Open No. 5-139097. That is, in the same publication, a transfer sheet having a structure in which a release layer, a pattern layer, and an adhesive layer are sequentially provided on a support using a thermoplastic resin film as a support is formed on a transfer-receiving substrate having an uneven surface. The image is transferred by pressing the transfer substrate from the back surface of the support with a heat roller made of rubber having a JIS rubber hardness of 60 ° or less as a transfer roller.

[0005]

However, in the above-mentioned transfer method, in particular, when a sufficient transfer pressure is applied to a groove-shaped portion having a shallow concave groove so as to reliably transfer the unevenness on the top surface portion, a groove-shaped portion that does not require transfer is required. The decoration layer is also decorated inside the
Even if the surface roughness of the grooved portion is different and the texture is different, etc., if the grooved portion and the top surface are similarly decorated, the grooved portion of the base material to be transferred is not utilized and high designability is not achieved. Could not be obtained. On the other hand, if the transfer pressure is weakened, transfer to the groove-shaped portion can be prevented, but this time, the transfer to the uneven surface of the top surface portion is incomplete and the problem occurs that the transfer layer comes off in the concave portion. In addition, in the above-described transfer method, the interior of the concave groove is harder to decorate as compared with the above method. However, after all, only the height difference between the groove-shaped portion and the top surface portion of the transfer-receiving base material and the decorative portion are not decorated. In the same manner as in that the decorative portions must be distinguished, the groove portions are also decorated in the case of a shallow groove. In addition, in the case of a deep concave groove, it is possible to decorate the groove portion and the top surface portion separately, but since the rubber roller to be pressed has high hardness, when the top surface portion has a large surface unevenness such as a brick pattern or the like. In some cases, the interior of the concave portion of the surface irregularities on the top surface was not decorated. Also, as the transfer method to the uneven surface of the top surface, the above method can be applied if the top surface is a flat surface or a minute uneven surface, but basically the elastic surface of the rotating heat roller is elastically deformed by rubber. Even if shallow surface irregularities are good to follow irregularities, they cannot be applied to large surface irregularities. In addition, there is a problem that the soft rubber roller is liable to be worn by the corners of the unevenness of the base material to be transferred.

[0006] Therefore, an object of the present invention is to provide a substrate to be transferred having a concave groove or a flat groove, and even if the groove is a flat groove, alignment with these grooves is performed. An object of the present invention is to provide a transfer method in which a transfer product such as a decorative material having a decorative surface on the top surface portion can be easily obtained. Another object of the present invention is to provide a transfer method that can be applied to a substrate to be transferred having a groove-like portion and a relatively large uneven surface on the top surface.

[0007]

In order to solve the above-mentioned problems, a transfer method according to the present invention employs a transfer member, such as a support and a transfer layer, provided on a substrate to be transferred having a concave or flat groove. In the method of transferring a transfer layer by using a transfer sheet, the transfer layer is at least composed of a decorative layer, and a portion of the decorative layer corresponding to the groove portion is not formed, and a registration mark is formed. Using the transfer sheet, align the transfer sheet with the base material to be transferred using the registration marks, and transfer the transfer layer to the base material so that the decorative layer avoids the groove. did. As a result, the decorative layer can be easily transferred only to the top surface portion, which is the other portion, avoiding the groove portion of the base material to be transferred, and only the top surface portion is decorated and the groove portions such as joints utilize the texture of the base material. Transfer products such as high-design decorative materials can be easily obtained.

[0008] The present invention also provides the above production method,
The transfer-receiving surface of the transfer-receiving base material having the groove portion forms an uneven surface,
As a method of applying a transfer pressure for pressing the transfer sheet against the transfer substrate, solid particles collide with the support side of the transfer sheet with the transfer layer side facing the uneven surface side of the transfer substrate, and the collision occurs. Using the pressure as the transfer pressure, the transfer sheet was pressed against the uneven surface of the substrate to be transferred to transfer the transfer layer to the substrate to be transferred. As a result, even if the top surface, which is the transfer surface, has relatively large surface irregularities, the transfer sheet can be followed, molded, and transferred after being positioned on the transfer substrate.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the method of transferring to a substrate having a groove-like portion according to the present invention will be described with reference to the drawings. FIG. 1 is a conceptual diagram illustrating the present invention. FIG. 1A to FIG. 1C are diagrams conceptually showing a transfer process. The transfer-receiving substrate B has a groove-like portion 1 having a concave or flat shape. The groove portion becomes a joint portion or the like.
The portion other than the groove portion is the top surface portion 2. The top surface is the transfer surface. The transfer sheet S is composed of a support 3 and a transfer layer 4 that transfers and transfers. The transfer layer includes at least the decorative layer 5. In the present invention, a transfer sheet in which a portion corresponding to the groove-shaped portion 1 is not formed as the decoration layer 5 is used. In the case of the figure, since the transfer layer 4 is composed of only the decoration layer 5, the pattern of the transfer layer 4 itself corresponds to the groove portion 1. The transfer layer may have a structure in which an adhesive layer and the like are further formed as necessary. In other words, the layer in which the portion corresponding to the groove portion 1 is not formed only needs to be at least a decorative layer. Other layers, such as an adhesive layer and a release layer, may be on the entire surface.
Then, a registration mark M is formed on the transfer sheet S used in the present invention. By register mark,
The desired positional relationship between the transfer substrate and the transfer sheet is adjusted artificially or mechanically so that the decorative layer avoids the groove-shaped portion of the transfer substrate (FIG. 1B )), Transfer. As the transfer pressure, a transfer roller, a solid particle collision pressure described later, or the like is used. As a result, as shown in FIG. 1 (C), the decorative material 5 is not transferred to the groove portion 1 of the base material B to be transferred, but is transferred only to the top surface portion 2 other than the groove portion. Are obtained. In FIG. 1, the groove 1 is a concave groove. However, even if the groove 1 is a groove formed of a shallow groove or a flat groove,
ADVANTAGE OF THE INVENTION According to this invention, a decorative layer can be transferred to a transfer receiving base material avoiding a groove-shaped part, and the decorative material of high design is obtained. Here,
In the case where an adhesive layer is provided on the entire surface as the transfer layer, the adhesive layer may be transferred to the groove-shaped portion of the substrate to be transferred as long as the adhesive layer is non-adhesive solid after completion of the adhesion.

Hereinafter, the present invention will be described in more detail.

[Substrate to be transferred] As shown in FIG. 1, the substrate to be transferred B has a groove-like portion 1 on its surface to be transferred. The transfer surface other than the groove portion is the top surface portion 2. The groove portion is a joint portion when a joint, a sill, and the like are combined with a unit material. However, in the form of a cosmetic material, it is not necessary to be an actual seam. This is because a seam may be imitated in a cosmetic material. Therefore, an actual seam may be used as the groove-shaped portion of the base material to be transferred,
It may be a groove for imitating a seam.

The substrate B to be transferred is usually a unit material consisting of a plurality of three-dimensional objects such as a plate-like object or a lump-shaped object, and is transferred in one-dimensional direction (vertical direction, horizontal direction, etc.) or two-dimensional direction (vertical direction) Direction and lateral direction). The unit materials to be arranged may be all congruent and have the same shape, or may have different shapes and dimensions. The joint between the unit materials 6 is a groove. FIG. 2 is a plan view showing various examples of the arrangement of the groove portions 1. The one-dimensional array in FIG. 2A is an array in which rectangular unit materials 6 are arranged in a one-dimensional direction (left and right directions in the figure). The groove portion 1 is usually straight. The one-dimensional array is, for example, a siding board. The congruent pattern arrangement shown in FIG. 2B is an arrangement in which a plurality of unit materials 6 each having a single shape are arranged in a two-dimensional direction (in the figure, the horizontal direction and the vertical direction). The joint pattern arrangement is, for example, an arrangement of brickwork. The non-congruent array in FIG. 2C is an array using at least two types of unit materials having different shapes and dimensions.
FIG. 2C is an example of the arrangement of unit materials 6a and 6b having different shapes. The non-congruent array is, for example, a tiled array. The upper surfaces of these unit materials 6, 6a and 6b are top surfaces.

FIG. 3 is a perspective view showing various examples of a combination structure of the groove-shaped portion and the unit material in the base material to be transferred. FIG.
The embedding structure of (A) is a structure in which a plurality of unit materials are combined by embedding a part of the unit material 6 in the base body 7. The base material body 7 is, for example, cement or the like. The unit material 6 is, for example, a brick or a tile. The seam between the unit materials becomes the groove-like portion 1 composed of a concave groove having a finite width and depth.
The groove 1 is a joint. The upper surface of the unit material 6 becomes the top surface 2. Next, the fitting structure shown in FIG. 3B uses a unit material 6 in which one side surface has a convex portion and the other side surface has a concave portion that fits into the convex portion. 6 is a structure in which a plurality of protrusions and recesses on both side surfaces are fitted to each other and are combined in the lateral direction. The unit material 6 is, for example, a wooden board.
The unit material 6 is a kind of sane having this structure, but the groove-like portion 1 which becomes a concave groove as shown in FIG. Is formed. The upper surface of the unit material 6 becomes the top surface 2. Next, FIG.
The structure which can be said to be an adhesive lamination / joint seal of (C) is that a plurality of unit materials 6 are laminated on an upper surface of the base material body 7 with an adhesive or the like at an interval from each other, and a concave formed at an interval between the unit materials. In this structure, a part of the depth of the groove (joint) is filled with the filler 8. Since the filler is partially filled, the joint between the unit materials becomes the groove-like portion 1 composed of a concave groove. The groove 1 is a joint. The upper surface of the unit material 6 becomes the top surface 2. Next, FIG.
The integrated structure of (D) is a structure in which the whole is made of one object. It is not a combination of the base material and the unit material, but has a structure that results in the same outer shape as shown in FIGS. In this case, this is indicated by a circle). This joint becomes the groove-like portion 1 composed of a concave groove. Pseudo unit material 6
Is the top surface 2. As described above, the groove-shaped portion in the transfer-receiving base material has a pseudo joint other than the actual joint between the unit materials. The integrated structure of FIG. 3D is a possible base material structure for imitating a seam with a decorative material, as described above. The substrate B to be transferred is, for example, a cement or the like, a calcium silicate plate or the like.

The groove-like portion 1 in the transfer-receiving substrate is usually a concave groove having a depth which becomes a three-dimensional object from the viewpoint of design, but as a special case, as shown in FIG. Alternatively, it may be a flat groove-like portion 1 which can be called a concave groove having a depth of zero. of course,
The groove portion 1 has an appearance different from the unit material 6 constituting the top surface portion. The groove 1 is a joint. FIG. 4 shows FIG.
This corresponds to a structure in which the unit material 6 is completely embedded in the embedded structure of FIG. In addition, in the structure shown in FIG.
When the concave groove is completely filled with the above, such a flat groove-shaped portion is obtained. The flat grooved portion may have a smooth surface,
Alternatively, the surface may be rough as if the joints were filled with cement. That is, the flat shape means flush with the top surface portion 2.

The surface of the top surface 2 may be a smooth surface or an uneven surface. FIG. 5 is a perspective view showing an example in which the top surface has the uneven surface 9. The surface unevenness of the top surface portion is, for example,
Specifically, the step is about 0.1 to 5 mm, and the width of the concave portion and the width of the convex portion are about 0.1 mm to 5 mm. In addition,
The size of the top surface portion 2 is, for example, 15 mm or more on one side. The size of the concave groove in the groove portion is, for example, about 1 to 10 mm in depth and about 1 to 10 mm in width. The transfer substrate having a concave groove as the groove portion and the top surface portion having an uneven surface, large concaves and convexes were formed from the concave groove and the top surface portion, and the surface irregularities of the top surface portion formed fine irregularities. Thus, a transfer-receiving substrate having irregularities in combination of large irregularities and fine irregularities is obtained. As a specific example of such an uneven pattern of the decorative material by the transferred substrate, for example, tiles, bricks, stones and the like as a unit material, stucco-like, lysine-like and the like as fine unevenness on the top surface of the unit material Contour patterns on the spray painted surface, stone-grained concavo-convex patterns such as the cleaved surface of granite, travertine marble plate and other stone material surfaces, or as a unit material made of wood board material, with fine grooves on the top surface as conduit grooves, hair lines, etc. And a woodgrain pattern having the following pattern. In the case of a substrate to be transferred whose top surface has an uneven surface, the transfer pressure
It is preferable to use an elastic roller and a solid particle collision pressure described later. In particular, the solid particle impact pressure is superior to the elastic roller in terms of the followability of the shape of the transfer sheet, and is suitable for a substrate to be transferred having a large surface unevenness on the top surface.

The material of the substrate to be transferred may be brick, stone, cement, ceramics, glass, metal (iron, aluminum, etc.), calcium silicate, wood, resin (vinyl chloride resin, phenol resin, ABS resin, etc.). Optional. These are used as a unit material or a base material body. In order to make the surface of the substrate to be transferred uneven, press working, embossing, extrusion, cutting, molding, or the like may be used. Further, the surface of the substrate to be transferred may be coated in advance with an easy-adhesion primer or a sealer. A coating liquid composed of an isocyanate, a two-part curable urethane resin, an epoxy resin, an acrylic resin, a vinyl acetate resin, or the like is used as the easy-adhesion primer or sealer. If the appearance of the transfer base material itself, such as color or gloss, is different from the desired appearance, a colored paint giving the desired appearance is applied to only the groove-shaped portions or the groove-shaped portions of the transfer base material. The entire surface including the surface may be coated. When applying an easily-adhesive primer or a sealer to the surface of the substrate to be transferred, a colored paint is usually applied thereon.

[Transfer Sheet] The transfer sheet S comprises a support 3 and a transfer layer 4 to which transfer is performed. The transfer layer 4 includes at least a decoration layer 5. In the present invention, the decorative layer 5 is a layer in which a portion corresponding to the groove-shaped portion 1 of the transfer-receiving base material B is not formed. In addition, a release layer or an adhesive may be formed on the transfer sheet as a transfer layer of the transfer sheet as an adhesive layer that becomes a part of the transfer layer. The layer where the portion corresponding to the groove portion 1 is not formed is at least the decorative layer 5, and other layers such as an adhesive layer and a release layer may be all over.

(Support) As the support, when the transfer surface of the transfer substrate is not an uneven surface, paper having no stretchability may be used. When the surface to be transferred is an uneven surface, at least at the time of transfer, a support having stretchability is used. The stretchable support may be a thermoplastic resin film or a rubber film that can be stretched at normal temperature. As the support, polyester resins such as polyethylene terephthalate, polybutylene terephthalate, polyethylene terephthalate-isophthalate copolymer, polypropylene, polyethylene, polyolefin resins such as polymethylpentene, nylon 6,
Polyamide resin such as nylon 66, polyvinyl chloride resin, vinyl polymer such as ethylene-vinyl alcohol copolymer, cellulose resin such as cellulose triacetate, cellophane, polymethyl methacrylate, polyethyl methacrylate, polyacrylic acid Examples include a film made of a thermoplastic resin such as an acrylic resin such as ethyl or polybutyl acrylate, or a rubber (elastomer) film such as a natural rubber, a synthetic rubber, a urethane elastomer, or an olefin elastomer. Among these, polybutylene terephthalate, polyester-based resins such as polyethylene terephthalate-isophthalate copolymer, polypropylene, polyethylene, polyolefin-based resins such as polymethylpentene, polyvinyl chloride resins, and low-stretching made of thermoplastic resins such as polyamide resins. Or, an unstretched film or an elastomer film such as an olefin-based elastomer is a preferable support in terms of stretchability. The thickness of the support is usually from 20 to 200 μm.

The support may be provided, if necessary, with a release layer on the transfer layer side to improve the releasability from the transfer layer. The release layer is removed together with the support from the transfer layer when the support is released. As the release layer, for example, a simple substance such as a silicone resin, a melamine resin, a polyamide resin, a urethane resin, a polyolefin resin, a wax, or a mixture containing these is used. In addition, if the support is provided with an uneven pattern on the surface on the transfer layer side, it is possible to form an uneven pattern such as grain, pear, wood grain on the surface of the transfer layer after transfer. The uneven pattern is particularly effective when the top surface of the transfer-receiving base material has no surface unevenness originally and is flat. Uneven pattern is embossed,
It is formed by a known method such as sand blasting or embossing printing with a shaping layer (release layer).

(Transfer Layer) The transfer layer comprises at least a portion corresponding to the groove-shaped portion and is formed of an unformed decorative layer. Further, a release layer, an adhesive layer and the like may be appropriately used as components of the transfer layer. is there. In the configuration having the adhesive layer, it is possible to omit applying the adhesive to one or both of the transfer sheet and the substrate to be transferred at the time of transfer. The decoration layer is partially formed using a conventionally known method such as gravure printing, silk screen printing, offset printing, a pattern layer obtained by printing a pattern with a material, a metal such as aluminum, chromium, gold, and silver using a known vapor deposition method or the like. Alternatively, a metal thin film layer or the like formed on the entire surface and used in accordance with the application is used. The pattern is, for example, wood pattern, stone pattern, cloth pattern,
Tile patterns, brick patterns, leather squeezing patterns, letters, geometric patterns, solid colors, etc. are used. In addition, the ink for the picture layer is a vehicle composed of a binder or the like, a coloring agent such as a pigment or a dye,
It consists of various additives appropriately added to this. Acrylic resin, vinyl chloride-vinyl acetate copolymer,
A simple substance such as a polyester resin, a cellulosic resin, a polyurethane resin, and a fluororesin, or a mixture containing these is used. As the pigment of the colorant, inorganic pigments such as titanium white, carbon black, red iron oxide, graphite, and ultramarine blue, and organic pigments such as aniline black, quinacridone, isoindolinone, and phthalocyanine blue are used.

(Release Layer) The release layer is used to adjust the releasability between the support or the release layer and the decorative layer, and to cover the surface of the decorative layer after transfer to protect the surface. And so on. As the release layer, a resin composition having releasability from the support and having desired physical properties as a surface protective layer of the transfer layer after transfer is selected. For the release layer, a thermoplastic resin or a curable resin is used. In particular, surface scratch resistance, chemical resistance,
When contamination resistance is required, a curable resin such as a thermosetting resin or an ionizing radiation-curable resin is preferable. The thickness is also selected depending on desired physical properties and the like, but is usually 0.1 to 10 μm. For example, as the thermoplastic resin, ethyl cellulose, cellulose nitrate, cellulose acetate, ethyl hydroxyethyl cellulose, cellulose derivatives such as cellulose acetate propionate, polyvinyl chloride, polyvinyl acetate, vinyl chloride-vinyl acetate copolymer, polyvinyl butyral and the like Vinyl polymer, polystyrene, poly α-
Styrene resin or styrene copolymer such as methyl styrene, polymethyl methacrylate, polyethyl methacrylate, acrylic resin such as polybutyl acrylate, rosin,
Natural or synthetic resins such as rosin ester resins such as rosin-modified maleic acid resins, rosin-modified phenol resins, and polymerized rosins, coumarone resins, vinyl toluene resins, and polyamide resins. Further, various additives such as a lubricant, a stabilizer, an extender, a coloring pigment and the like are further added to these resins, if necessary, to the release layer. For example, it is preferable to add a lubricant such as polyethylene wax, Teflon wax, carnauba wax, and paraffin wax as an additive for imparting surface lubrication after transfer. Also,
When the cosmetic material is used for exterior use, it is exposed to sunlight, so it is a benzotriazole-based, benzophenone-based, salicylic acid-based, ultraviolet absorber such as ultrafine cerium oxide, a light stabilizer such as a hindered amine-based radical scavenger, It is preferable to add a phenolic antioxidant, a heat stabilizer and the like.
The release layer is formed by known printing means such as gravure printing, silk screen printing, and offset printing, and known coating means such as gravure coating and roll coating.

[Adhesive] The adhesive is applied in advance or immediately before transfer as an adhesive layer constituting a transfer layer of a transfer sheet or as an adhesive layer on a substrate to be transferred. When applied to a substrate to be transferred, the adhesive layer of the transfer sheet transfer layer may be omitted. Examples of the adhesive used include a heat-sensitive adhesive, a solvent-activated adhesive, an ionizing radiation-curable adhesive, a hot melt adhesive, a two-part curable adhesive, a water-based adhesive, and a pressure-sensitive adhesive. . The adhesive may be diluted with a solvent or without a solvent, or may be a liquid or a solid at room temperature. As the resin for the adhesive, for example, one or more of acrylic resin, vinyl chloride-vinyl acetate copolymer, polyester resin, styrene resin, chlorinated polypropylene resin, polyamide resin, urethane resin, epoxy resin and the like A mixture is used. Examples of the adhesive used as the pressure-sensitive adhesive include an adhesive. Examples of the adhesive include rubbers such as polyisoprene rubber, polyisobutylene rubber, styrene-butadiene rubber, and butadiene-acrylonitrile rubber; Arbitrary adhesion of (meth) acrylate resin, polyvinyl ether resin, polyvinyl acetate resin, vinyl chloride-vinyl acetate copolymer, styrene resin, polyester resin, polyamide resin, polychlorinated polyolefin resin, polyvinyl butyral resin, etc. Agents, suitable tackifiers, for example, rosin, dammar, polymerized rosin, partially hydrogenated rosin, ester rosin, polyterpene resin, modified terpene, petroleum resin, cyclopentadiene resin, phenolic resin,
A resin to which an appropriate amount of a styrene-based resin, a xylene-based resin, a cumarone-indene-based resin, or the like is added can be given. In addition, various additives may be added to the adhesive composed of these as needed. For example, calcium carbonate, barium sulfate,
An extender (filler) composed of fine powders such as silica and alumina, and a thixotropic agent such as organic bentonite (especially when applied to a substrate to be transferred having a large uneven step, the adhesive flows from the convex portion to the concave portion. It is advisable to add it for prevention.)

The adhesive may be a conventionally known solution coating means such as a gravure roll coat, a spray coat, a flow coat, etc.
The sheet to be the transfer sheet or the substrate to be transferred is applied by a melt coating means using an applicator or the like, or a known printing means such as gravure printing, offset printing, silk screen printing or the like. The amount of the adhesive applied varies depending on the composition of the adhesive, the type of the substrate to be transferred, and the surface condition, but is usually 10 to 200 g / m2.
^{About 2} (solid content).

[Register mark] Register mark M
Is usually formed simultaneously with the formation of the decorative layer using an ink and a plate for forming the decorative layer. This is because the positional relationship between the registration mark and the decoration layer can be set with high accuracy. The color is arbitrary, such as dark or light. The register mark may be a hole formed in the support. The shape of the register mark is arbitrary. For example, the shape is a cross register mark, a right-angled quadrilateral, or the like. The former is good for visual recognition, and the latter is good for machine recognition.
The position where the register mark is provided is usually a peripheral portion outside the pattern of the decorative layer, but may be inside the pattern of the decorative layer as long as the visual recognition or the machine recognition does not hinder its use. For point registration marks,
It is preferable to provide at least two of them so that positioning can be performed in the vertical and horizontal directions and the rotation.

[Registration] The registration between the transfer sheet and the base material to be transferred using the registration mark is performed by
It may be performed manually or mechanically. Or,
The registration mark may be read mechanically and the result may be displayed as a match / mismatch, etc., and the eclectic method may be used in which the positional relationship between the transfer sheet and the transfer-receiving substrate is manually adjusted while checking the display result. When mechanically performed, read the registration mark with a photosensor such as a photoelectric tube or photodiode,
The position of one or both of the transfer sheet and the base material to be transferred is adjusted so that a desired positional relationship is obtained. For example, the continuous belt-shaped transfer sheet sent out with the position regulated in the width direction with respect to the transferred substrate temporarily stopped at a predetermined standby position by cueing at the end side and regulating the position also in the width direction, The head is located at the registration mark on the transfer sheet and temporarily stopped at a predetermined standby position. Then, the base material to be transferred and the transfer sheet are conveyed at the same speed, and an elastic roller, a solid particle collision pressure, etc. To start the transfer. The transfer sheet and the substrate to be transferred are aligned on the basis of the groove on the side of the substrate to be transferred, but since the groove is fixed to the substrate to be transferred, On the other hand, the substrate to be transferred may be based on its outer shape.

Referring to FIG. 6, an example of a method of artificially registering a target with a registration mark using a jig will be described.
In the figure, a sheet kump 10 which is a frame-shaped frame and a box-shaped placing table 11 are used as register jigs. First, the substrate to be transferred B is placed on the placing table 11. Stand 11
Guides 12a and 12b are provided on the bottom surface of the substrate, and the orthogonally-transferred base material has its two orthogonal sides directed to the guides 12a and 12b, respectively, at predetermined positions with respect to the table. On the other hand, the single-sheet transfer sheet S is roughly aligned so that there is no slack, and its registration mark M comes around the expected position, and is sandwiched from the front and back around the four sides by a sheet clamp. Keep it fixed. Then, the sheet clamp holding the transfer sheet is placed on a table on which the substrate to be transferred is placed. The outer periphery of the four sides of the placing table 11 is in the form of a flange protruding outward and forms a fixing portion 13 for fixing the sheet clamp. A predetermined portion of the fixing portion is provided with a registration mark Mb by engraving or printing. Is formed.
The register mark Mb is formed at a position corresponding to the register mark M on the transfer sheet. Accordingly, if the position of the sheet clamp is shifted and adjusted on the table so that the register mark Mb of the transfer sheet overlaps with the register mark Mb of the table, the transfer sheet transfers its decorative layer to the transferred layer. The position is adjusted so as to avoid the groove portion of the base material. In a state where the two registration marks M and Mb are in a predetermined positional relationship such as overlapping, the sheet clamp is fixed to the placing table with a clip, a vice, or the like. Then, the transfer may be performed using a transfer roller, a solid particle collision pressure, or the like. After the transfer sheet is pressed against the substrate to be transferred, release the clips etc.,
When the sheet clamp 10 is removed, only the support of the transfer sheet is peeled from the base material to be transferred, and a decorative material is obtained.

[Transfer Pressure Application by Transfer Roller] The method of applying the transfer pressure for pressing the transfer sheet against the base material to be transferred and pressing the transfer sheet is not particularly limited. For example, a transfer roller including an elastic roller is used as in the related art. The elastic roller is
Usually, it is a cylindrical roller in which the periphery of a rigid shaft core such as iron is covered with an elastic body such as silicone rubber. The elastic roller is
It can be applied to a substrate to be transferred having relatively small surface irregularities on the top surface. The JIS rubber hardness is preferably 65 ° or less in order to follow-mold the transfer sheet into the concaves and convexes on the surface of the substrate to be transferred and press the transfer layer against the surface of the substrate to be transferred. If the elastic roller is also used as a heating roller, the activation of the adhesive by heating or the improvement of the stretchability by heating the transfer sheet can be performed together with the pressing of the transfer sheet. As the heating means, an electric heater may be built in the elastic roller, or an infrared radiation heater or dielectric heating provided outside the roller may be used.

[Application of Transfer Pressure by Solid Particle Collision Pressure] As another transfer pressure application method for pressing a transfer sheet against a substrate to be transferred as a transfer pressure, the collision pressure of solid particles is used. Can be. The solid particle collision pressure is suitable for a substrate to be transferred having a top surface with large surface irregularities that cannot be applied by an elastic roller. When the solid particles are actually used, it is preferable that the solid particles are circulated and reused without being scattered in the surrounding atmosphere. Therefore, according to FIG. 7, which shows a conceptual diagram of an example of a transfer device that transfers while preventing scattering and circulating reuse of solid particles using a chamber,
An example of the transfer method of the present invention when using solid particle collision pressure will be described.

(Transfer Apparatus) The apparatus shown in FIG. 7 is an apparatus that uses the sheet clamp 10 and the placing table 11 described above as a register jig. First, the transfer sheet S of a single sheet is roughly aligned by the sheet clamp 10 with the transfer layer side facing down, and the four sides are held. The substrate to be transferred B is placed at a predetermined position on the placing table 11 with the surface to be transferred having the groove portion facing upward. The sheet clamp 10 holding the transfer sheet is registered with the table 11 on which the substrate to be transferred is placed, and is fixed in position with a clip or the like. The apparatus shown in the figure includes a substrate transporting device 20 including a row of driving rotary rollers for transporting the table 11 as a substrate transporting device, and an ejector 32 serving as a solid particle ejecting device in the chamber 33 for ejecting the solid particles P. And a collision pressure application unit 30 which is a collision pressure application unit for sequentially applying collision pressure by colliding with the support side of the transfer sheet and pressing the transfer sheet against the substrate to be transferred. The ejector 32 is, for example, one that uses an impeller described later. The chamber 33 covers at least the opening of the transfer sheet and the transfer substrate exposed to the collision pressure, except for the entrance of the transfer sheet and the transfer substrate, and at least the opening of the ejector, so that the solid particles are placed in an external working atmosphere. I try not to leak it. For this reason, the pressure inside the chamber is preferably made lower (negative pressure) than outside. Further, in the apparatus shown in the figure, a heating device 40 for finally heating a transfer sheet or a substrate to be transferred is provided upstream of the ejector in the chamber 33, and a heating device 41 for preheating them is provided upstream of the chamber 33. The apparatus is provided with a removal device 70 (also used as a cooling device) for blowing off solid particles remaining on the transfer sheet on the downstream side of the chamber 33.

(Solid Particles) The solid particles P used include:
Non-metallic inorganic particles such as glass beads, ceramic beads, calcium carbonate beads, alumina beads, zirconia beads, alundum beads, corundum beads, and other inorganic powders, iron, carbon steel, iron alloys such as stainless steel, aluminum, or duralumin Metal particles such as aluminum alloys, titanium, zinc, etc., or fluororesin beads, nylon beads, silicone resin beads, etc.
Organic particles such as resin beads such as urethane resin beads, urea resin beads, phenol resin beads, and crosslinked rubber beads can be used. The shape is preferably spherical,
Spheroidal, polyhedral, scaly, amorphous and other shapes can also be used. The size of solid particles is usually 10
About 1000 μm.

(Application of Collision Pressure by Solid Particles) Solid particles are ejected from an ejector toward a transfer sheet and collide with the transfer sheet to apply a collision pressure. The collision pressure becomes the transfer pressure. A typical example of the ejector is one that accelerates and ejects solid particles using an impeller or an ejection nozzle. The impeller accelerates the solid particles by its rotation, and the blowing nozzle accelerates the solid particles by a high-speed fluid flow. Sand blast or shot blast for impeller and blow nozzle,
Shot peening and blasting can be used. For example, a centrifugal blast device is used for the impeller, and a pressurized or suction blast device, a wet blast device, or the like is used for the blowing nozzle. The centrifugal blast device accelerates and ejects solid particles by the rotational force of the impeller. A pressurized blasting device ejects solid particles together with air while being mixed with compressed air. The suction-type blast device sucks solid particles into a negative pressure portion generated by a high-speed flow of compressed air, and ejects the solid particles together with the air. The wet blast device mixes and ejects solid particles with a liquid. A plurality of jetting devices are used when the pressurized region cannot be formed into a desired shape and size with only one jetting device.
For example, in the case where the entire width is a pressing region in the width direction orthogonal to the transfer direction of the transfer sheet and the transfer-receiving substrate, a plurality of pressure regions are arranged linearly in the width direction, and the width is linear and wide in the width direction. It is a band-shaped pressurized region. In order to lengthen the collision pressure application time, it is preferable that the ejectors be arranged in two or more rows in the feed direction of the transfer sheet and the substrate to be transferred. When a plurality are arranged, it is preferable that the adjacent pressurized regions of the individual ejectors partially overlap each other.

(Ejector: Impeller) FIGS. 8 and 9 show conceptual diagrams of an example of an impeller that can be used as an ejector as a typical example of the ejector. These correspond to centrifugal blasting devices used in the blasting field. In the drawing, the impeller 812 has a plurality of blades 813 on both sides thereof.
Are fixed by the two side plates 814, and the center of rotation is the blade 8
A hollow portion 815 without 13 is provided. Further, a direction controller 816 is provided inside the hollow portion 815. The direction controller 816 includes an opening 81 having a part of the outer circumference opened in the circumferential direction.
7, and has the same rotation axis as the rotation axis of the impeller 812, and is rotatable independently of the impeller. When the impeller is actually used, the opening is fixed in an appropriate direction. Further, inside the directional controller, another impeller having a hollow inside and the same rotation axis as the rotation axis of the impeller 812 is provided as a sprayer 818 (see FIG. 9). The spreader 818 rotates with the outer impeller 812. A rotating shaft 819 is fixed to the center of rotation of the side plate 814. The rotating shaft 819 is rotatably supported by a bearing 820, and is driven and rotated by a rotating power source (not shown) such as an electric motor. Rotates. The rotation shaft 819 is
It does not penetrate between the two side plates 814 having the blades 813 therebetween, and forms a space without a shaft. Then, the solid particles P are supplied into the sprayer 818 from a hopper or the like through a transport pipe. Usually, the solid particles are supplied from above (directly above or obliquely above) the impeller. The solid particles supplied into the sprayer are scattered outward by the impeller of the sprayer. The scattered solid particles are released only in the direction allowed by the opening 817 of the direction controller 816 and the outer impeller 812
Is supplied between the blade 813 and the blade 813. Then, it collides with the impeller 813, is accelerated by the rotational force of the impeller 812, and ejects from the impeller.

The shape of the blade is typically a rectangular flat plate (a rectangular parallelepiped) as shown in FIG. 8, but it is also possible to use a curved curved plate, a propeller shape such as a screw propeller, etc. Select according to purpose. The number of blades is usually selected from a range of 2 to 10 blades. By the combination of the shape, number, rotation speed, mass and supply speed and supply direction of the solid particles, and the opening size and direction of the direction controller, the ejection direction of the accelerated solid particles, the ejection speed, Adjust the projection density, ejection angle, etc. In addition, the direction in which the solid particles are ejected can be controlled not only vertically downward but also horizontally or obliquely downward by the direction controller 816 or the like. Furthermore, if necessary, the impeller is provided with an ejection guide (not shown) that opens only the ejection / extraction portion of the solid particles and covers the periphery of the other impeller so that the ejection direction of the solid particles can be uniformed. The direction of ejecting solid particles can also be controlled. The shape of the opening of the ejection guide is, for example, a hollow cylindrical shape, a polygonal column shape, a conical shape, a polygonal pyramid shape, a fish tail shape, or the like. The ejection guide may have a single opening, or may have an interior partitioned into a honeycomb shape.

The material of the blades of the impeller may be appropriately selected from ceramics, metals such as steel, high chromium cast steel, titanium, and titanium alloy. Since the solid particles are accelerated upon contact with the blade, it is preferable to use a high chromium cast steel or ceramic having good wear resistance for the blade. The size of the impeller is usually about 5 to 60 cm in diameter, the width of the impeller is about 5 to 20 cm, the length of the impeller is about the diameter of the impeller, and the rotation speed of the impeller is about 500 to 5000 [rpm]. . The ejection speed of the solid particles is about 10 to 50 [m / s], and the projection density is about 10 to 150 [kg / m ² ]. Adjustment of the impact pressure is based on the speed of the solid particles impinging on the transfer sheet from the ejector,
It is adjusted by controlling the number of solid particles colliding per unit time and the mass of one particle. Among them, to adjust the speed of the solid particles, for example, in the case of an ejector using an impeller, the speed is adjusted by the rotation speed of the impeller, the diameter of the impeller, and the like.

(Transfer by Transfer Apparatus) Transfer by the apparatus shown in FIG. 7 using the solid particles and the ejector as described above will be described. First, as shown in FIG. 6, the decorative layer of the transfer sheet avoids the groove-shaped portion of the transfer-receiving base material by using the sheet clamp 10 and the placing table 11 to register by the registration marks M and Mb. The sheet clamp 10 holding the transfer sheet is placed at the same position as the table 1 on which the base material to be transferred is placed.
It is fixed to 1. The adhesive is applied in advance as a transfer layer of a transfer sheet, a transfer-receiving substrate, or both.

Then, the placing table 11 on which the transfer sheet and the substrate to be transferred are at predetermined positions is transported one by one by the substrate transporting device 20, and the transfer sheet S and the substrate to be transferred B are first heated. After preheating at 41, the chamber 3 of the collision pressure applying unit 30
3 to be transported and supplied. Further, the transfer sheet is heated and softened by the heating device 40 before entering the chamber 33 and receiving the collision pressure, and is easily stretched when the collision pressure is applied. The transfer sheet is also indirectly heated by the transferred substrate that is heated by the substrate heating device and supplied to the collision pressure applying unit. The heating devices 40 and 41 are based on heater heating, infrared heating, dielectric heating, induction heating, hot air heating, and the like.

On the other hand, the solid particles P are supplied from the hopper 31 to the ejector 32 in the chamber 33, where they are accelerated by the impeller as shown in FIGS. I do. Then, the transfer sheet is exposed to collision of solid particles ejected from the ejector.
The change in the momentum of the solid particles per unit time at the time of collision is the collision pressure for pressing the transfer sheet against the transfer-receiving substrate. Then, as the table is transported, the entire area in the longitudinal direction is sequentially exposed to the collision pressure. Then, the transfer sheet is pressed against the substrate to be transferred by the solid particle collision pressure, and the transfer sheet is also extended and deformed into the concave portion of the top surface of the top surface portion of the transfer substrate, thereby deforming the top surface portion. The transfer layer is molded following the surface shape, and the activated adhesive adheres to the transfer layer. The substrate to which the transfer sheet is in close contact is cooled by cooling or the like before the impact pressure is released and before the transfer sheet comes out of the chamber.

On the other hand, the solid particles that have been subjected to the collision with the transfer sheet partially fall to the lower part of the chamber 33 bypassing the side surface of the placing table. After the remaining portion is transferred to the downstream side while being placed on the transfer sheet support together with the placing table, the remaining portion is separated from the chamber 33 by a second chamber 71 defined only in the upper portion of the substrate transfer device 20 in a separate room. enter. Then, there, room temperature air is blown toward the transfer sheet from a slit nozzle-shaped removing device (also a cooling device) 70, and solid particles remaining on the transfer sheet are blown down from the end of the placing table to the lower portion of the second chamber 71. At the same time, the substrate to be transferred and the transfer sheet are cooled to a temperature at which the support of the transfer sheet can be peeled off. The solid particles collected at the lower part of the chamber are sucked from there by the drain pipe 34 and returned to the original hopper 3.
Collected in 1. The air in the chamber for collecting and transporting the solid particles is also sucked by the drain tube 34 together with the solid particles, and is transported to the airflow and solid particle separation device 35 above the hopper. In the separation device 35, as shown in the drawing, solid particles conveyed by a gas flow are discharged horizontally into the device cavity, and solid particles having a high density relative to the gas fall downward by their own weight, and the gas remains horizontal as it is. Then, the remaining solid particles that are going to move with the airflow are filtered by the filter, and then discharged out of the system by the vacuum pump 36. In this way, the solid particles are prevented from flowing out to the surroundings together with air from the chamber entrance opening through which the transfer sheet and the substrate to be transferred enter and exit. In order to prevent the solid particles from flowing out of the chamber system, in order to reduce the pressure inside the chamber from the outside, the displacement of the vacuum pump 36 and an exhaust fan (not shown) are connected to the chamber as appropriate. The balance between the amount of gas flowing out of the chamber due to the amount of exhaust and the like and the amount of gas introduced into the chamber by further connecting a blower (not shown) to the chamber is adjusted.

Then, the adhered transfer substrate and the transfer sheet are removed from the transfer sheet by solid sheet removal and forced cooling by the removal device 70, and then the sheet clamp 10 fixed to the table is removed. (Support) is peeled off from the substrate to be transferred. As a result, a decorative material D is obtained, in which the decorative layer is transferred and formed only as the transfer layer of the transfer sheet on the top surface portion, avoiding the groove-shaped portion of the base material.

[Post-processing] In order to impart durability, design feeling and the like to the surface of the decorative material after transfer, a paint may be further applied. The paint may be a one-pack type or a two-pack type. As painting,
There are a coating performed to give a desired appearance to the groove-shaped portion on which the transfer is not performed, and a coating performed to protect the surface. In order to give a desired appearance to the groove, a paint having a desired color and gloss appearance is prepared, and the paint is applied to the groove using a brush, a brush, a spray nozzle or the like. Alternatively, the entire surface of the decorative material may be painted by a known wiping method, and then only the top surface paint may be removed with a rubber squeegee, sponge, or the like. When the surface is to be protected, a transparent protective layer is applied only to the top surface or the entire surface of the decorative material surface. As such a transparent protective layer, one or two or more of a fluororesin such as polytetrafluoroethylene and polyvinylidene fluoride, an acrylic resin such as polymethyl methacrylate, a silicone resin, and a urethane resin are used as a binder. If necessary, use a paint to which an ultraviolet absorber such as benzotriazole or ultrafine cerium oxide, a light stabilizer such as a hindered amine radical scavenger, a coloring pigment, an extender pigment, or a lubricant is added. The coating is performed by spray coating, flow coating, roll coating using a soft rubber roll or sponge roll, or the like. The thickness of the transparent protective layer is about 1 to 100 μm.

[Transfer Products] The transfer products obtained by the present invention include exterior materials such as outer walls, fences, roofs, gates and gable plates, architectural interior materials such as wall surfaces and ceilings, window frames, doors and the like as decorative materials. It can be used in various fields such as handrails, thresholds, doors and other fittings, furniture surface materials such as chests of drawers, cabinets for light electric / OA equipment, and vehicle interior materials such as automobiles.

[0042]

The present invention will be further described with reference to the following examples.

Example 1 First, a calcium silicate plate was prepared as a substrate B to be transferred having three-dimensional surface irregularities formed by joints formed by concave grooves. The joints are 1mm deep and 6 wide
mm. It should be noted that the top surface has a matte surface unevenness. And, in order to express the color and gloss of the joint of the acrylic emulsion and the color and luster of the joints on the uneven surface, a colored coating composed of a white paint obtained by adding a titanium white pigment to an acrylic resin binder was previously performed. . The transfer sheet S has a release layer made of a mixture of an acrylic resin and a vinyl chloride-vinyl acetate copolymer in a weight ratio of 8: 2 on a support made of a polypropylene-based thermoplastic elastomer film having a thickness of 100 μm, Using a mixture of an acrylic resin and a vinyl chloride-vinyl acetate copolymer in a weight ratio of 8: 2 as a binder resin, titanium white, isoindolinone,
A reddish pattern, a decorative layer consisting of a pattern of a pattern that does not form a portion corresponding to the joints of the base material to be transferred, in a brick tone with an ink using a coloring pigment made of carbon black, and formed by gravure printing . In addition, a registration mark consisting of a cross line was formed at the same time as the decoration layer at one corner in the width direction of the transfer sheet with the ink for the decoration layer as shown in FIG.
Next, a two-part curable acrylic emulsion type adhesive (manufactured by Nortape Kogyo Co., Ltd.) was applied over the entire surface by spray coating so as to have a dry coating amount of 40 μm to form an adhesive layer A, thereby obtaining a transfer sheet. .

Next, as shown in FIG.
Was placed on the table 11 with the guides 12a and 12b aligned. On the other hand, the transfer sheet S is a sheet clamp 1
With the position roughly adjusted to 0, the four sides are clamped from both sides and fixed. Then, the sheet clamp 10
The registration mark M on the transfer sheet S fixed by
The register is visually aligned with the register mark Mb provided on the mounting table 11, the register of the joint of the base material to be transferred and the pattern of the decorative layer of the transfer sheet is aligned, and the sheet clamp is rotated around the four sides using a clip. And was temporarily fixed to the table. Then, the surface of the iron core was coated with silicone rubber having a JIS rubber hardness of 60 degrees by using an elastic roller and heated to a surface temperature of 180 ° C. at a pressure of 2 kg / cm ² to transfer the transfer sheet to the base of the transfer sheet. The material was pressed to adhere the transfer layer of the transfer sheet to the substrate to be transferred. After cooling to room temperature, the support was peeled off to obtain a cosmetic material as a transfer product. In the obtained decorative material, as a result of the unformed portion of the decorative layer being aligned with the joint of the base material to be transferred, the pattern was not transferred in the joint, and the pattern was transferred only to the top surface. In addition, the pattern on the top surface portion did not have any omission of the pattern on both the concave and convex portions.

Example 2 The same substrate and transfer sheet as those used in Example 1 were used, and the transfer pressure was applied using solid particle collision pressure instead of the elastic roller. An apparatus for transferring by the solid particle collision pressure is an apparatus as shown in FIG. 7 and an apparatus using an ejector using an impeller as shown in FIGS. 8 and 9 as the ejector. As in the first embodiment, the registration marks M and Mb are visually checked with respect to the transfer-receiving base material B placed at a predetermined position on the placing table 11, and the transfer sheet S held by the sheet clamp 10 is aligned. Then, a sheet clamp was prepared by temporarily fixing the sheet clamp to a table with a clip. The substrate B to be transferred is placed on the table 11 with the uneven surface thereof facing upward on a substrate transporting device 20 composed of a row of transporting rollers, transported, and heated by a heating device 41 using radiant heat from a heating wire heater. And then supplied to the collision pressure applying unit 30. Next, the heating device 40 similar to the heating device 41 starts from the support side of the transfer sheet,
The final transfer sheet was preheated, the adhesive was activated, and the substrate to be transferred was heated.

Next, the solid particles P have an average particle size of 0.4.
A spherical zinc ball having a diameter of 1 mm was ejected from the ejector 32 to collide with the support side of the transfer sheet, and the transfer sheet was pressed against the substrate to be transferred. The rotation speed of the impeller of the ejector is 3600 [rpm
m], and the ejection speed of the solid particles was 40 [m / s].
Then, the transfer sheet is extended into the concave portion of the unevenness on the top surface portion and thermally fused, and is subsequently removed from the chamber 33 by the removing device 70 in the second chamber 71 provided on the downstream side.
After blowing air at room temperature to remove solid particles remaining on the transfer sheet from the end of the transfer sheet toward the lower part of the chamber, the sheet clamp 10 is removed from the placing table 11 and the support of the transfer sheet is transferred to the transfer substrate. The decorative material D was obtained by peeling off the material. In the obtained decorative material, as a result of the unformed portion of the decorative layer being aligned with the joint of the base material to be transferred, the pattern was not transferred in the joint, and the pattern was transferred only to the top surface. In addition, because of the solid particle collision pressure, it was reliably transferred to the inside of the concave portion of the surface irregularities on the top surface.

(Comparative Example 1) A transfer sheet similar to that of Example 1 was prepared as a transfer sheet, except that a decorative layer was formed on the entire surface and there was no register mark. Using the same elastic roller as in Example 1, the transfer pressure of the elastic roller is applied only to the top surface portion by using the uneven step of the joint of the base material without using the sheet clamp or the placing table, The transfer was attempted with the expectation that the transfer layer would be transferred only to the top surface. But,
In the obtained decorative material, the transfer layer, that is, the decoration layer was transferred to the inside of the joint because the depth of the joint of the base material to be transferred was as small as 1 mm. Further, since the adhesive layer provided on the transfer sheet was also on the entire surface, burrs were easily generated. Moreover, the burrs were easily attached to the joints. As a result, a satisfactory cosmetic material could not be obtained.

Comparative Example 2 A transfer sheet similar to that of Example 1 was prepared as a transfer sheet, except that a decorative layer was formed on the entire surface and there was no adhesive layer and no register mark. on the other hand,
As for the adhesive, instead of providing the adhesive used in Example 1 on the transfer sheet, a roll formed by an elastic roller using rubber is used on the transfer-receiving substrate used in Example 1 by using the unevenness due to the joint. An adhesive layer was formed only on the top surface by a coating method. Using an elastic roller similar to the first embodiment,
The transfer was attempted by using an adhesive layer partially formed only on the top surface of the substrate to be transferred without using a sheet clamp or a holder, expecting that the transfer would be performed only on the top surface. However, it is difficult to form an adhesive layer on the top surface of the substrate to be transferred with a uniform thickness, and the obtained decorative material is a transfer layer transferred to the top surface, that is, a decorative layer. Had some defects such as a lack of a picture in the concave portion. As a result, a satisfactory cosmetic material could not be obtained.

(Comparative Example 3) The same substrate and transfer sheet as those used in Comparative Example 2 were used, and the transfer pressure application was the same as that of Example 2 except that the elastic roller was used. .
Then, using the adhesive layer formed only on the top surface of the substrate to be transferred, without using a sheet clamp or a holder, we attempted transfer using the adhesive layer that was expected to be transferred only to the top surface. Was. However, it is difficult to form an adhesive layer on the top surface of the substrate to be transferred with a uniform thickness, and the obtained decorative material is a transfer layer transferred to the top surface, that is, a decorative layer. In addition, some defects such as a lack of a picture in the concave portion were observed. As a result, a satisfactory cosmetic material could not be obtained.

[0050]

According to the present invention, it is possible to easily align a groove-shaped portion such as a joint of a base material to be transferred with a pattern of a decorative layer of a transfer sheet. The pattern is not transferred,
A cosmetic material of excellent design can be easily manufactured. Further, even for a shallow or flat groove-shaped portion, the image can be transferred only to the top surface portion without transferring an extra pattern. When the collision pressure of the solid particles is used as the transfer pressure, the top surface may have an uneven pattern (for example, a stucco-like or lysine-like spray-painted surface, a granite cleavage surface, or a stone surface such as a travertine marble plate). Even when there are stone-like irregular patterns such as irregularities, conduit grooves, hair lines, satin finish, etc., a pattern can be transferred, and a cosmetic material having an extremely excellent design feeling can be easily produced. Moreover, like the conventional rubber roller pressing method,
There is no abrasion of parts such as rollers due to the unevenness of the substrate to be transferred.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram illustrating a method for transferring to a substrate to be transferred having a groove-shaped portion according to the present invention.

FIG. 2 is a perspective view showing various examples of a combination structure of a groove-shaped portion and a unit material on a substrate to be transferred.

FIG. 3 is a plan view showing various examples of an arrangement of groove portions on a substrate to be transferred.

FIG. 4 is a perspective view showing another example of the combination structure of the groove portion and the unit material on the base material to be transferred.

FIG. 5 is a perspective view showing an example in which the top surface of the base material to be transferred has an uneven surface.

FIG. 6 is an explanatory diagram of a register method and a jig used for the method.

FIGS. 7A and 7B are conceptual diagrams of an example of a transfer apparatus using a collision pressure of solid particles as a transfer pressure, where FIG. 7A is a view as viewed from a side in a substrate transport direction, and FIG. FIG. 2 is a schematic device diagram of the container portion viewed from a substrate transport direction.

FIG. 8 is a conceptual diagram (perspective view) illustrating one embodiment of an ejector using an impeller.

FIG. 9 is a conceptual diagram illustrating the inside of the impeller of FIG. 8;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Groove part 2 Top part 3 Support 4 Transfer layer 5 Decorative layer 6 Unit material 7 Substrate main body 8 Filler 9 Surface unevenness of top part 10 Sheet clamp 11 Placement table 12a, 12b Guide 13 Fixing part 20 Substrate conveying device REFERENCE SIGNS LIST 30 collision pressure application unit 31 hopper 32 ejector 33 chamber 34 drain pipe 35 separation device 36 vacuum pump 40 sheet heating device 70 removal device (also cooling device) 71 second chamber 812, 812a impeller 813, 813a blade 814, 814a side Face plate 815 Hollow part 816 Direction controller 817 Opening part 818 Sprayer 819, 819a Rotating shaft 820 Bearing B Transfer receiving substrate D Cosmetic material P Solid particles S Transfer sheet M Registration mark Mb Registration mark on pedestal side

Claims (2)

[Claims] 1. A method of transferring a transfer layer to a transfer substrate having a concave or flat groove-shaped portion by a transfer sheet comprising a support and a transfer layer, wherein the transfer layer is at least from a decorative layer. The transfer sheet is constituted by using a transfer sheet on which the decorative layer is formed and a portion corresponding to the groove-shaped portion is not formed, and the register mark is formed. And transferring the transfer layer to the substrate to be transferred so that the decorative layer avoids the groove-shaped portion. 2. A transfer surface of a transfer base material having a groove-like portion forms an uneven surface, and a solid is formed on a support side of a transfer sheet having a transfer layer side facing the uneven surface side of the transfer base material. 2. The groove-shaped portion according to claim 1, wherein the particles are collided, the collision pressure is used as a transfer pressure, and the transfer sheet is pressed against the uneven surface of the substrate to be transferred to transfer the transfer layer to the substrate to be transferred. Transfer method to a transfer-receiving substrate having