JP3678833B2 - Penetrating engraving machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pen printing device for penetrating stamps (prints). More particularly, without replenishing the long ink by impregnating the ink, the inking stamp plate made of sponge material having continuous air bubbles that can be imprinted repeatedly generates heat at the flash and該閃light including infrared heating sheet or relates to inking stamp version of the flash plate making unit for stencil making heat generation of carbon or polymeric material of the document image.
[0002]
[Prior art]
In order to save the trouble of attaching the stamp ink to the stamp surface each time a stamp or stamp is stamped, there is known a stamp in which sponge rubber having open cells is used as a stamping material and the ink is occluded beforehand.
As a method for producing this type of stamp, Japanese Patent Application Laid-Open No. 60-193686 discloses that a whole surface portion excluding a portion forming an imprint on the surface of a sponge is depressed and pressed into a concave shape by a hot stamping process. A method of manufacturing a stamp having an ink occlusion part as an imprint forming part is disclosed.
[0003]
Japanese Patent Laid-Open No. 50-155323 also discloses a method for pressure-bonding a porous body on a similar heating plate.
However, these methods require time and labor for engraving or engraving a die as a heating plate and letters, symbols, figures and the like.
[0004]
As described above, the conventional method for producing a penetrating printing plate having open cells is time-consuming and does not provide a clear imprint, and a plate making machine that can quickly provide a desired stamp with a clear imprint has been desired. .
[0005]
An object of the present invention is to solve the above-mentioned problems, and in the production of a penetrating printing plate having a simple production process and apparatus and having open cells, a clear and efficient imprint can be obtained with less energy and is easy to use. There is a penetrating engraving flash engraving machine that can make a plate at a good low cost.
[0006]
[Means for Solving the Problems]
As a result of intensive research to achieve the above-mentioned object, the present inventors have developed a heating surface that generates heat upon irradiation with infrared rays on the surface of a stamp material made of rubber, synthetic resin, etc. having open cells capable of storing stamp ink. Are placed in contact with the surface of the stamp material, and a desired imprint original image as a normal image is superimposed on the imprint original so as to be a mirror image.
Here, the non-exuded portion of the stamp is exposed to the original image of the imprint original by irradiating a flash including infrared rays from above the original in a state where the stamp material is compressed over the entire surface of the plate making section at a certain compression ratio. The heat generated in the heat generating sheet is caused by the flash light that has passed through the area other than, and the stamp material is melted by this heat. However, because the stamp material is compressed, the structure forming the continuous bubbles of the stamp material is in close contact with each other. The material surface layer can be melt-adhered and contracted to close open cells over several layers.
For this reason, the energy efficiency is remarkably increased as compared with the case of making a plate without compression, and the plate can be made with less energy.
As a result, it was found that the thermal influence on the non-melted part was alleviated, the reproducibility of fine lines and the ink oozing property were greatly improved, and a penetrating printing plate having a clear and highly imprinted printing performance was found. Completed.
[0007]
Furthermore, by making the pressure holding part and the flash irradiation part separable, the penetrating printing plate can be combined with a combination of a hand-held flash irradiation device (referred to as a flash irradiation part) and a pressure holding mechanism (referred to as a pressure holding part). In addition, it is possible to apply to various types of stamp materials by exchanging the pressure holding mechanism.
[0008]
In other words, the plate-making performance is greatly affected by the compression state of the stamp material, but it can be set in the flash irradiation unit while being compressed and held in a state suitable for the light source, so that the plate-making performance can be made regardless of the irradiation timing of the irradiation unit. Good plate making becomes possible.
[0009]
However, if the compression is not substantially the same, there is a problem that unevenness occurs in the plate making, and the insufficiently compressed portion is insufficiently melted in the stamp material and the paper surface is stained at the time of stamping.
[0010]
Such a problem is that when the operation of the lever serves as a switch for compression of the stamp material and flash irradiation, the elastic deformation amount of the lever changes depending on the operation speed and operation force, the flash timing changes, and the compression is insufficient. A condition can occur. In addition, it is inconvenient because it changes depending on the setting position of the stamp material.
For this, it is only necessary to have a pressure holding section that keeps a portion of the stamp material sandwiched between the transmission plate and the clamp plate, which is made by at least one infrared irradiation, in substantially the same compressed state.
[0011]
Flash plate making unit of permeation printing plate of the present invention, other clamping plate, and pressurized圧基plate pressurizing圧基plate for supporting the permeable transparent plates infrared, it is rotatably supported end to one end of the pressurized圧基plate is supported A penetrometer of a penetrating printing plate using a lever supported rotatably at the end, and a manuscript on which a manuscript image that shields or absorbs infrared rays is drawn on a transmission plate supported by the pressure substrate, infrared overlapping the heat generating sheet generates heat, and has an open cell stamp ink impregnation resilient resin ramming material (or stamp material) upon irradiation with ramming material sandwiched between the transparent plate and the clamping plate its clamping plate forming at least one lever press the transmission plate direction a free end of the coercive one such clamp plate substantially the same compression state of 95 to 30% of its original thickness for the portion which is plate-making by irradiation of infrared rays Lock the free end All SANYO to kill manner, the above-mentioned pressure圧基plate, transparent plate, dwell portion of the combined clamping plate and lever, a flash containing the infrared to be separable from the flash light irradiation unit that irradiates from the transmission plate It is configured.
That is, it has a pressurizing and holding portion that can be locked so as to keep the transmission plate and the clamp plate ( compression plate ) in a substantially parallel state, and a flash light irradiation portion that emits flash light including infrared rays.
[0012]
When irradiating the flash light, the distance between the transmission plate and the clamp plate varies depending on the type of the stamp material and the energy of the flash light, but is set to approximately 95 to 30% of the thickness of the stamp material. A flash including infrared rays is irradiated from the lower surface.
[0013]
The material surface of the heat generation sheet (which becomes the heat generation surface) coated with a material containing at least carbon or a polymer material that generates heat when irradiated with infrared rays on the surface of the stamp material that has air bubbles and can be impregnated with stamp ink. Is placed in contact with the front surface of the stamp material, and a desired imprinted original document is superimposed on the stamp material so as to be a mirror image, and the stamp material is compressed to approximately the same 30 to 30% of the original thickness from the back surface of the original document. Irradiate a flash including infrared rays. As a result, the portion corresponding to the imprinted portion absorbs or blocks infrared rays in the original image of the imprinted original document, and even if the heat generating sheet generates heat, the surface of the stamp material does not melt, that is, bubbles are blocked. It becomes the ink exudation part. On the other hand, in a portion that does not correspond to the imprinted portion, the flash heat generates heat from the hot-melt sheet, and the surface of the stamp material is melted by the heat generation. At this time, when the stamp material is in a compressed state, the structure constituting the continuous bubbles of the stamp material is in close contact with each other, so that the heat generation of the heating sheet melts and contracts not only the surface of the stamp material but also the surface of the stamp material. Block open cells. For this reason, since the non-exuded portion of the ink can be formed with significantly less energy than when the stamp material is not compressed, it is not only economical, but also has little thermal influence on the ink exuded portion, so that a fine imprint original image can be obtained. Reproduction is also possible.
[0014]
As the flash including infrared rays generated from the flash irradiation unit in the present invention, a xenon flash device, a photo strobe flash, a flash valve, or the like can be used, and the smaller the irradiation energy per unit area at the time of plate making, the lower the cost. In addition to this, it is possible to obtain a clear seal with little thermal influence on the ink exudation portion of the stamp material. For this reason, by compressing the material at the time of flash irradiation, a plurality of layers of continuous bubbles can be melted and adhered even with small flash energy, and the blockage of the bubbles can be strengthened.
If it is irradiated with a large amount of energy to completely close open bubbles on the surface of the material without compressing the material, the device will not only be expensive, but in particular for imprinted documents containing fine lines and small dots, A clear stamp cannot be obtained because the non-melted portion is affected.
In particular, when the smoothness of the material surface is low, a portion with an incompletely closed state of bubbles is generated unless a sufficient compression is applied, and a good imprint cannot be obtained.
[0015]
In the present invention, since the flash irradiation unit and the pressure holding unit are separable, a stamp printing plate can be manufactured by adding a new pressure holding unit to the existing flash irradiation unit. It becomes possible and cheap and economical.
Here, it is preferable that the pressurizing and holding unit can cope with the optimal pressurizing conditions for various flash irradiation units, the use of an infrared filter, and the size of the stamp material.
[0016]
The stamp material that has continuous bubbles and can be impregnated with the stamp ink used in the flash plate making apparatus of the osmotic printing plate of the present invention may be any material as long as it is a continuous pore body having excellent ink self-holding ability. Rubber, synthetic rubber-based sponge rubber, synthetic resin foam, etc. are shown. Preferably, it has fine continuous pores having an average pore diameter of 2 to 10 μm in a three-dimensional network structure having a melting temperature of 50 to 150 ° C. A 0.5 to 10 mm thick sheet of 30-80% polyolefin foam is used.
[0017]
The exothermic sheet in the present invention is obtained by applying a material containing carbon or a polymer substance that generates heat upon irradiation with infrared rays to a film that can transmit infrared rays, such as an acetate film, and also heat melting containing carbon or a polymer substance. The material may be applied to the film in a state of being melted in a hot melt or an organic solvent.
Specifically, for example, a hot-melt material made of wax, resin, and carbon black is hot-melt coated on an acetate film to a thickness of 0.5 to 10 μm.
[0018]
The imprint original in the present invention does not generate heat by infrared rays, and it is most preferable to cut out a sheet that blocks infrared rays into an imprint original image. It is preferable that there is a difference in the transmissivity of light. For example, it can be used even in copy light reduction made by a PPC (plain paper copy) copier. In this case, good results can be obtained by improving the infrared transmittance by infiltrating the liquid into the paper.
This is not limited to a copy original, but can be similarly handled for an original written on a paper with a writing instrument such as a pencil or a sign pen or an original output by a printer.
[0019]
When the stamp material is used, the heat-meltable substance has a melting point of 50 to 160 ° C. higher than the melting temperature of the stamp material, and is blended so that the melt viscosity is 50 to 2000 mPa · s. The lower the melting temperature of the stamp material, the lower the flash irradiation energy. In addition, it is preferable that the viscosity of the melted ink is low, so that it can easily penetrate into the stamp material. Irradiation energy can be reduced.
[0020]
In the plate making apparatus of the present invention, the stamping surface of the material surface is formed by superimposing a heating sheet so that the ink surface is in contact with the surface of the stamp material, and applying a liquid containing at least water, for example, to improve infrared transmission efficiency. When an imprinted document is overlapped so that it becomes a mirror image, and a flash including infrared rays is irradiated from above, the portion other than the imprinted document image of the imprinted document passes through the imprinted document and reaches the heat generating sheet and is included in the heat generating sheet. The generated carbon and polymer substances generate heat. The heat generation melts the surface layer of the sponge material, but since the sponge material is compressed and adjacent bubbles are in close contact with each other, the heat generation reaches the deep part of the stamp material and melts and adheres over several to a dozen layers of bubbles on the surface layer. It can be made to. For this reason, since it is possible to obtain the closed state of bubbles necessary for the non-exuded portion of the stamp ink with a small amount of flash irradiation energy, there is little influence on the non-occluding portion that becomes the stamp ink extruding portion, and it is possible to make a fine original image. It will be.
[0021]
The level difference between the bubble closing portion and the non-blocking portion compresses the stamp material to about 95 to 30% of the original thickness during infrared irradiation, elastically deforms the bubble of the stamp material, closely contacts the adjacent structure, and when heated It is preferable that the surface of the sponge material is melted and concaved to a certain depth by the heat, and the step between the melted part and the non-melted part is 0.01 mm or more.
That is, the pore diameter of the printing material used in the present invention is preferably 3 to 5 μm, but if the step is 0.05 mm or more, 10 to 15 layers of pores are compressed and blocked in the thickness direction of the printing material. In this case, the ink exhibits sufficient performance as a non-exuded portion even with respect to an ink having a viscosity of 100 to 500 mPa · s.
[0022]
That is, when the size of the stamp is 30 * 50 mm, if the ink viscosity is about 1,000 mPa · s and the pore size of the printing material is about 3 μm, the amount of ink filled in the printing material is about 0.1 mm even if the step is about 0.01 mm. If it is as small as about 5 g, the performance of the non-exuded portion can be maintained.
[0023]
The stamp printing plate (stamp) obtained with the production plate making machine of the present invention has the advantage that it functions as a stamp even if the surface of the stamp itself is made into a printing surface without being assembled with other members. It can be made a normal stamp by attaching to the. The use can be performed by repeatedly impregnating or occluding the ink on the stamp material having the printing surface made in advance, so that a clear imprint can be printed repeatedly without replenishing the ink for a long time. The ink occluded by the stamp does not have volatility at room temperature and has a viscosity of 100 to 3,500 mPa · s.
In particular, an ink of 500 to 1,500 mPa · s is preferable from the viewpoint of easy filling of the printing material and the amount of ink oozing at the time of printing.
[0024]
Further, by providing a stamp ink occlusion body having a higher degree of foaming than the stamp material of the printing plate between the printing plate and the base plate, it is possible to extend the stamping life and facilitate the supply of the stamp ink.
The stamp printing plate according to the present invention can be continuously printed by being mounted on the roll surface and rotating the roll.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 6 show a penetrator for penetrating printing plates according to an embodiment of the present invention.
[0026]
In the figure, A is a pressure holding unit, 1 is a flash irradiation unit, 2 is a pressure substrate, 3 is a transmission plate, 4 is a stamp material, 5 is a clamp plate, 6 is a free end of the clamp plate, and 7 is a support end of the clamp plate. , 8 is a link, 9 is a lever rotation center, 10 is a lever, 11 is a lever base, 19a is a link rotation center, 13 is a flash switch, 14 is an imprint document, and 15 is a heating sheet (for example, a heating material and an acetate film). It is.
[0027]
As shown in FIGS. 1 and 2, in the flash plate making device, the upper surface portion of the external shape box-shaped flash irradiation unit 1 is formed with a peripheral step 1 s with a low step inside, and the lower surface of the pressure substrate 2. The peripheral portion 2s is cut out to be stepped, and the upper surface portion of the flash irradiation unit 1 and the lower surface portion of the pressure substrate 2 are fixed to each other by fitting the peripheral portions 1s and 2s together.
In a state where the pressure substrate 2 is fixed to the flash light irradiation unit 1, the concave portion 1 a of the flash light irradiation unit 1 is provided so as to face the flash light transmission opening 2 b of the upper surface portion 2 a of the pressure substrate 2.
In this flash irradiation unit 1, a flash bulb 1b that emits flash including infrared rays is disposed in a recess 1a provided with a reflecting plate 1a1, and a socket 1c that supports this flash photoelectric light (flash bulb) 1b is connected to the flash irradiation unit 1. It can be inserted and removed from the outside. Further, a concave portion is formed in the upper surface portion 2a of the pressure substrate 2 corresponding to the upper opening of the concave portion 1a in a range wider than the opening 2b, and the transparent plate 3 made of a transparent plate capable of transmitting infrared rays is fitted into the concave portion. There is no such thing.
[0028]
The pressure substrate 2 constitutes a pressure holding portion A together with the transmission plate 3, the clamp plate 5, the link 8, the lever 10, and the like.
The supporting rib 7 of the clamp plate 5 is rotatably supported by the rotating shaft 18a on the protruding rib 18 at one end in the length direction of the upper surface portion 2a of the pressure substrate 2, and the protruding rib 19 at the other end is supported by the rotating rib 18a. The lever base 11 is rotatably supported via the link 8. Reference numeral 9 denotes a rotation center of the lever 10, and the lever 10 is rotatable around this.
[0029]
The clamp plate 5 is fixed over the entire surface of the stamp material 4 that can be made at least once when the original 14, the heat generating sheet 15, and the stamp material 4 are stacked on the transmission plate 3, and the clamp plate 5 is stacked thereon. The flat portion 5a has an area that can be compressed below the thickness.
The lever 10 rotates the free end 10a toward the support end 7 side of the clamp plate 5 so that the lever base 11 presses the clamp plate free end 6 in the direction of the transmission plate 3, whereby one time of the stamp material 4. It is formed so that the part to be made by flash irradiation can be compressed to substantially the same compression state of 95 to 30% of the original thickness.
[0030]
Further, the flash irradiation unit 1 can irradiate flash light including infrared rays toward the transmission plate 3 from the flash bulb 1b.
Further, a part of the portion of the lever base 11 that comes into contact with the clamp plate 5 is formed so as to draw an arc concentrically with the rotation center 19 a of the link 8.
[0031]
Further, as shown in FIG. 5, the lever base 11 in a state of being opened away from the transmission plate 3 and the free end 6 of the clamp plate 5 on which the stamp material 4 is set have substantially the same height on the pressure substrate 2. Has been.
When the lever 10 is not loaded, the lever 10 is in an open state as shown in FIG. 5, and the lever 10 and the link 8 are in a linear state by engaging the protrusion 10c of the lever 10 with the elastic protrusion 8b of the link.
[0032]
The flash switch 13 of the flash irradiation unit 1 is provided in a protruding shape on the free end 10a of the lever 10, and the flash switch 13 turns on an electrical contact (not shown) in the flash irradiation unit 1. The flash switch 13 is set so that flash light is emitted in conjunction with the lever 10 only at a position where the rotation position of the lever 10 is higher than the desired compression ratio of the stamp material 4 is obtained. Has been.
[0033]
Next, the preparation of the permeation printing plate by the plate making machine will be described in the case of producing a mirror image printing plate (normal image printing).
FIG. 7 and FIG. 8 are schematic diagrams of manufacturing stamp stamps.
As shown in FIG. 7A, a stamp material 4 made of polyethylene foam, a carbon film heat generating sheet 15, and a document 14 are provided.
First, as shown in FIG. 4B, a heat generating sheet 15 is overlaid on the stamp material 4 and a manuscript 14 is further laminated thereon to form a laminated state, and the manuscript 14 is brought into contact with the transmission plate 3 as shown in FIG. . In this case, the surface of the manuscript 14 marked with characters, graphics, etc. is brought into contact with the heat generating sheet 15.
[0034]
When the surface of the document 14 on which the image is not marked is brought into contact with the heat generating sheet 15, a normal image printing plate (mirror image imprint) is obtained.
Further, the document 14 is not limited to an image of a PPC copy, and the original 14 may be an image printed on a transparent sheet that transmits a flash light, or only an image that does not transmit a flash light (such as a cut paper pattern). Even when the image is printed on the sheet 15 itself, it can be used as a stamp, and the original 14 has a portion that does not transmit the flash light, and can be held by the holding structure of the plate making machine. If there is, the form is not particularly limited.
Furthermore, as the type of the manuscript 14, an image is drawn with ink so that the flash can be shielded on paper that can transmit flash, and an image is drawn with a pencil so that the flash can be shielded on paper that can transmit flash. There is a picture drawn or printed on a paper that can transmit the flash light so that the flash light can be shielded (such as a design booklet). However, as long as the image is marked, the form is not particularly limited. .
[0035]
Next, as shown in FIG. 7C, a flash is applied to the stack of the stamp material 4, the heat generating sheet 15, and the document 14 as described above.
At this time, as shown in FIG. 8, the flash is shielded by the existing portions L such as characters and graphics in the document 14, but even if heat is generated, the stamp material 4 is not melted through the heat generating plate, and the characters and graphics absent portion B Then, the light passes through and reaches the heat generating sheet 15. In the heat generating sheet 15, the temperature of the part that is exposed to light rises, and the temperature in other parts does not change. The surface of the stamp material 4 where the heat-generating sheet 15 comes into contact with the temperature rising portion melts (melts) due to the heat and closes the bubbles, but is compressed, so that the bubbles melt and adhere across multiple layers. Open cells are blocked. At the same time, it shrinks and becomes a slightly depressed state, and this portion becomes an ink non-exuded portion H shown in FIG. Further, the surface of the portion of the stamp material 4 that contacts the non-temperature rising portion of the heat generating sheet 15 maintains the open state of the open bubbles, and this portion becomes the ink bleed portion I shown in FIG. Thus, the plate making is completed, and if the original 14 and the heat generating sheet 15 are removed and the stamp material 4 is impregnated with ink, the stamp can be stamped.
[0036]
The production of the stamp will be described in more detail.
Preparation of the imprint manuscript 14:
The printed matter was copied by a PPC copying machine to produce an imprint original 14 having an imprint original image, and a liquid made of water and ethanol was applied to one or both sides to improve infrared transmission efficiency. Here, ethanol is an auxiliary agent that facilitates the penetration of water into paper, and is not limited to ethanol. Even if only water is used, it takes a long time to penetrate and the effect is not changed. In addition, the liquid applied to an imprint document is not limited to water, but if it penetrates into paper and has a thermal conductivity equivalent to that of water, it exhibits the same performance; otherwise, the reproducibility of fine lines May be inferior, but it will save a lot of energy.
[0037]
In addition, by using water as the coating liquid, even if the copy toner generates heat at the time of flash irradiation using the imprint original 14 prepared by the PPC copying machine, the heat is absorbed by water and the stamp material 4 is thermally affected. It is hard to give and excellent reproducibility of fine lines.
[0038]
Making stamps:
The imprint original image of the imprint original 14 is superimposed on the transparent plate 3 of the flash irradiation unit 1 having a flash bulb (flash bulb) 1b having a luminous energy of 5000 lumens / sec. The heat generating sheet 15 is stacked, and a foamed polyethylene sheet having a solid network structure of 5 μm fine open cells with a porosity of 60%, a melting temperature of about 70 ° C. and a dimension of 50 * 30 mm and a thickness of 1.6 mm is formed. The stamp material 4 is placed on top of each other.
[0039]
The exothermic sheet 15 used here was carbon black and a resin dispersed in a volatile solvent, coated on a 20 μm thick acetate film and dried. The thinner the acetate film, the higher the plate making efficiency, but this thickness is easy to handle.
[0040]
Here, in the pressure holding part A, the rotation center 9 of the clamp plate 5 is provided so that the foamed polyethylene sheet of the stamp material 4 is elastically deformed by about 50% in the thickness direction, that is, the thickness is 0.8 mm. In this state, the clamp plate 5 is engaged with an engagement mechanism (denoted by reference numeral 30 in FIG. 1) such as a hook in a state where the clamp plate 5 is rotated and the stamp material 4 is compressed. This makes it possible to hold the stamp material with a thickness of 0.8 mm.
Next, the stamp material 4 could be well made by irradiating the flash in accordance with the flash irradiation unit 1 while maintaining the pressure in the pressure holding unit A.
[0041]
A clamp plate 5 that is rotatably supported is placed on one end of the pressure substrate 2. Further, as shown in FIG. 6, the base 11 of the lever 10 supported on the other end of the link 8 rotatably supported on the other end of the pressure substrate 2 and the clamp plate free end 6 are slightly connected with the stamp material 4. To be locked in a compressed state. At this time, since the clamp free end 6 and the lever base 11 are substantially in the same position with respect to the center of rotation of the link 8, the lever 10 is rotated toward the clamp plate support end 7 to be temporarily locked. That is, the link 8 and the lever 10 are rotatably connected, but the elastic protrusion 8b provided on the link 8 and the protrusion 10c of the lever 10 come into contact with each other and hold them in a straight line. Temporary locking becomes possible.
After that, the flash bulb 1b is attached to the socket 1c and attached to the plate making machine body. When the lever 10 is further rotated toward the clamp plate support end 7 from this state, the lever base 11 rotates around the tip of the link 8 and presses the tip of the clamp plate 5 against the pressure substrate 2. At this time, the protrusion 10 c of the lever 10 can move over the elastic protrusion 8 b of the link 8 and can rotate differently from the link 8.
[0042]
Here, in the embodiment, the lever base 11 is formed to have a radius that compresses the stamp material 4 by about 50% in the thickness direction when the lever base 11 is rotated more than a certain angle from the temporary locking position of the lever 10. Regardless, the compression ratio of the stamp material 4 can be constant at about 50%.
[0043]
The flash switch 13 at the tip of the lever 10 (the free end 10a) pushes the electric contact of flash irradiation provided on the pressure substrate 2 to emit light. For this reason, the flash irradiation does not emit light unless the stamp material 4 has a set compression ratio, and not only can the plate making without failure be possible, but also there is no fear of inadvertent flashing.
[0044]
When the compression force of the plate making machine is released, the stamp material 4 made in the above process returns to the fully open position by the restoring force of the sponge material, and the sponge material also returns to its original thickness and the stamp ink can be occluded. Become.
Here, by storing the ink in the stamp, the stamp can be continuously printed without ink replenishment.
[0045]
Further, the step difference between the melted portion and the non-melted portion of the stamp material surface layer of the stamp printing plate prepared in the above process is about 0.01 mm, and the stamp printing plate is attached to the mount to 500 to 1000 mPa · s. When 0.5 g of stamp ink was filled from the printing surface and continuous printing was performed, a clear imprint of 200 to 300 times was obtained. On the other hand, when the 50 joule xenon lamp is used and the stamp material, the heat generating sheet, and the original are only slightly compressed so as to be in close contact with each other, melting is recognized only on the surface of the stamp material. Even after filling, the stamp ink oozed out from almost the entire surface.
[0046]
In addition, in the said embodiment, although the installation to the flash irradiation part 1 of the pressurization holding | maintenance part A is performed by fitting, what kind of form may be sufficient as long as it becomes separable, for example, other than fitting It may be fastened with screws.
[0047]
Further, the pressure holding mechanism (pressure holding unit) can be structured as shown in FIG. 9, and no special positioning is required if the flash irradiation area is large. That is, in the flash plate making apparatus of FIG. 9 which is another embodiment, the transmission plate 3 having a relatively small flash incident area is formed in the flash irradiation unit 1 having a large size and a wide opening 1a of the recess for flash irradiation. The small pressurization holding part A having is placed for plate making.
In the pressure holding unit A, the support end 22 of the clamp plate 21 is pivotally supported by the rotary shaft 23 on the one end 20 a of the pressure substrate 20. Further, a hook-like locking claw portion 24 is pivotally supported by the rotation shaft 25 on the other end 20 b of the pressure substrate 20. The free end 26 of the clamp plate 21 is formed with a notch 27 on which the locking claw 24 is hooked and locked.
A hole 28 that allows light to pass therethrough passes through substantially the central portion of the pressure substrate 20, and a step portion 29 is formed in the peripheral portion of the through hole 28, and the transmissive plate 3 fits the peripheral portion into the step portion 29. .
[0048]
In this flash plate making apparatus, in the pressure holding unit A, the stamp material is compressed at a predetermined compression rate by pressing the clamp plate 21 with the document 14, the heat generating sheet 15, and the stamp material 4 overlaid on the transmission plate 3 in the same manner as described above. Then, the above-mentioned compression rate is maintained by hooking the locking claw portion 24 onto the cutout portion 27. Then, the flash is irradiated from the flash irradiation unit 1 toward the transmission plate to perform plate making.
[0049]
【The invention's effect】
The osmotic printing plate of the penetrating printing plate of the present invention has a simple structure and does not require a mold or the like, so that a high-quality stamp suitable for the purpose can be quickly provided.
Also, since the stamp material can be held in the same compressed state of 95-30% of the original thickness at the time of flash irradiation, the plate making is performed in a specified compression state regardless of the flash irradiation timing of the flash irradiation unit. it can. Therefore, since not only the continuous bubbles on the surface of the stamp material but also the bubbles can be simultaneously closed to a certain depth, the continuous bubbles of the stamp material can be closed with low energy without variation. For this reason, there is little influence on a non-melting part and a printing plate with good quality can be obtained. That is, even when the line width of the original image is narrow, there is no defect that the portion corresponding to the ink bleed portion is affected by the thermal effect of the melted portion and the imprint is thin or missing at the time of printing.
[0050]
Furthermore, in the present invention, since the pressure holding unit and the flash irradiation unit can be separated, it is possible to produce a stamp printing plate at low cost by adding only the pressure holding unit using the conventional flash irradiation unit. Become.
[Brief description of the drawings]
FIG. 1 is an external perspective view of a penetrometer for penetrating printing plates according to an embodiment of the present invention.
FIG. 2 is a side view of the flash plate making machine when separated.
3 is a cross-sectional view taken along line III-III in FIG.
FIGS. 4A and 4B are explanatory views showing a state in which a clamp plate and a lever are fully opened.
FIG. 5: The original end (14), the heat generating sheet (15), and the stamp material (4) are overlapped so that the free end (6) of the clamp plate (5) and the lever base (11) are substantially on the pressure substrate (2). It is a state figure with the same height.
FIG. 6 is a state diagram in which the stamp base (4) is locked in a slightly compressed state with the clamp plate free end (6) at the lever base (11).
FIGS. 7A and 7B are schematic diagrams of a stamp printing plate manufacturing process, where FIG. 7A is a stamp material, FIG. 7B is a stack of stamp materials, FIG. 7C is a flash irradiation state, and FIG. It is each explanatory drawing of the produced penetrating stamp.
FIG. 8 is a cross-sectional view when light, which is a main part of the stamp manufacturing process, is irradiated.
FIG. 9 is an explanatory view of a flash plate making device according to another embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Flash irradiation part 2 Pressure board 3 Transmission board 4 Stamping material 5 Clamp board 6 Clamp board free end 7 Clamp board support end 8 Link 9 Lever rotation center 10 Lever 10a Free end 11 Lever base 13 Flash switch 14 Imprint original 15 Heating sheet 19a Link rotation center 20 Pressure substrate 21 Clamp plate 22 Clamp support end 24 Locking claw portion 27 Notch portion 29 Through hole 30 Hook A Pressure holding portion L Imprint original image H Melting portion I Non-melting portion

Claims (1)

Pressurizing圧基plate for supporting the permeable transparent plates infrared, rotatably supported end using a lever is rotatably supported on the other end of the clamping plate, and pressurized圧基plate which is supported on one end of the pressurized圧基plate A pen printing device with a penetrating stamp,
An original on which a manuscript image that shields or absorbs infrared rays is drawn on a transmission plate supported by the pressure substrate, a heat generating sheet that generates heat by irradiation with infrared rays, and an elastic resin that has continuous bubbles and can be impregnated with stamp ink A portion of the stamp material which is made by at least one infrared irradiation of the stamp material sandwiched between the transmission plate and the clamp plate is put into substantially the same compressed state of 95 to 30% of the original thickness. Form a lever that pushes the free end of the clamp plate toward the transmission plate
The pressurizing and holding unit including the pressurizing substrate, the transmission plate, the clamp plate, and the lever is configured to be separable from a flash irradiation unit that irradiates flash light including the infrared rays from the transmission plate. Penetrating plate with penetrating stamp.

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