JPH09327965A - Method and apparatus for processing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a manufacturing cost of a printing plate while preparation for processing is easily performed. SOLUTION: A copy is prepared by drawing printed images 36 of a character, a graphic, etc., with ink for printed image reflecting or intercepting infrared rays 37 against a black film. A porous resin sheet 30 having an open cell capable of being impregnated with ink is placed on the copy on which the printed image 36 is drawn. Then, a part excepting the printed image 36 of the black film is heated with infrared rays 37 radiated from a flash bulb 15 to blockade the open cell of the porous resin sheet 30 of a part corresponding to outside the printed image 36, and a printing plate is manufactured.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate-making method and a plate-making apparatus for forming a printing plate by closing open cells of a porous resin sheet.

[0002]

2. Description of the Related Art In recent years, when printing an image such as a picture or a character on a printing medium such as a postcard, a printing plate such as a commercially available stamp cannot sufficiently cope with the diversification of individual tastes. Therefore, a plate-making apparatus capable of personally producing a desired printing plate has been developed.

Conventionally, the above plate making apparatus has a light source 52 for emitting infrared rays 51 and a transparent plate 53 for transmitting the infrared rays 51, as shown in FIG. When making a printing plate using this plate making apparatus, after placing the original sheet 54 on which the printed image 54a is formed on the transparent plate 53, a dedicated liquid for permeation such as ethyl alcohol is placed on the original sheet 54. To make the original sheet 54 in a semi-transparent state in which infrared rays can easily pass therethrough, and then the black film 55 that generates heat by irradiation of the infrared rays 51 and the porous resin sheet 5 having open cells.
Prepare for plate making by stacking 6 and.

Next, the infrared ray 51 is emitted from the light source 52, the infrared ray 51 is blocked by the printed image 54a, and the original sheet 54 is passed therethrough.
5 is exposed except for the printed image 54a. Then, as shown in FIG. 7, the exposed portion of the black film 55 is heated above the melting point of the porous resin sheet 56, and the porous resin sheet 56 is melted by this heat generation, whereby the bubbles in the surface portion are closed. Ink non-bleeding portion 56b
Then, the porous resin sheet 56 is formed with the ink exuding portion 56a in which bubbles on the surface portion remain. After that, the porous resin sheet 56 is removed from the plate making apparatus, and the ink is absorbed by the ink bleeding portion 56a corresponding to the printing image 54a, whereby a printing plate that can be printed continuously is completed.

[0005]

However, in the above-mentioned conventional configuration, it is necessary to infiltrate the original sheet 54 with the liquid for permeation, and the black film 55 and the porous resin sheet 56 are placed on the original sheet 54. Since the work of stacking while positioning the and is necessary, there is a problem that the preparation work for the plate making is troublesome. Further, each time one printing plate is produced, the original sheet 54 and the black film 55
Since it is necessary to prepare the porous resin sheet 56 and
There is also a problem that the production cost of the printing plate is likely to rise.

Therefore, the present invention has been made in order to solve the above-mentioned problems, and the plate-making method and the plate-making method capable of easily preparing the plate-making and reducing the production cost of the printing plate. The purpose of the present invention is to provide a plate making device.

[0007]

In order to achieve the above object, the invention of claim 1 is an ink for printing an image which reflects or blocks light on a black film and forms an image of a character or a figure. A step of drawing an original, a step of placing a porous resin sheet having open cells capable of impregnating ink on the original on which the image is drawn, and an image of the original printed with light emitted from the light emitter Other parts are heated to block open cells of the porous resin sheet in parts other than the printed image of the original to produce a printing plate. As a result, a printing image is drawn on a black film using the printing ink, and this black film is used as a manuscript, so a conventional manuscript sheet is prepared, and this manuscript sheet is made semitransparent with a dedicated liquid. It becomes unnecessary to do the work. Therefore, plate preparation can be easily performed, and the plate can be manufactured with the black film and the porous resin sheet, so that the plate manufacturing cost can be reduced.

According to a second aspect of the present invention, in the first aspect, the printing ink is a solution containing a metallic or white pigment. With this, the metallic or white pigment reliably reflects or blocks light, so that the printing plate can be manufactured with high accuracy.

According to a third aspect of the present invention, there is provided a plate making apparatus having a light-transmitting base plate that allows light of the light-emitting body to pass therethrough, a porous resin sheet having open cells capable of impregnating ink, and a black film. A pen member having a printing ink for reflecting or blocking the light is attached, and an image such as a character or a figure is drawn on the black film placed on the translucent base plate with the pen member, It is characterized in that the black film is heated by the irradiation of light to close the open cells of the porous resin sheet to manufacture a printing plate. This allows
To print an image on a black film using printing ink and use this black film as an original, prepare a conventional original sheet and make this original sheet semitransparent with a special liquid Is unnecessary. Therefore, plate preparation can be easily performed, and the plate can be manufactured with the black film and the porous resin sheet, so that the plate manufacturing cost can be reduced. Furthermore, if a pen member is attached, in addition to drawing an image directly on the black film, it is possible to make a printing plate using a document sheet as in the past, which makes it possible to use various printing plates. It can also be achieved.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. As shown in FIGS. 3 and 4, the plate making apparatus according to the present embodiment includes a cover 4 and first to third movable lids 8 rotatably provided on the cover 4.
9 and 10. Inside the cover 4, an inverted quadrangular trapezoidal recess 26 having a stepped portion 24 which is opened toward the movable lids 8, 9 and 10 and is enlarged is formed. Step 2
4, a transparent acrylic plate 25 (translucent base plate) is arranged so as to close the opening side of the recess 26. The bottom wall 26a of the recess 26 has two flash bulbs 15
(Light emitter) is attached. Each flash valve 15 is detachably supported by a mounting portion 27 provided under the bottom wall 26a, and is connected to a power source such as a dry battery (not shown) via the switch 14. Instead of the flash bulb 15, a xenon flash device or a photostrobe flash lamp may be used.

The above-mentioned first to third movable lids 8, 9 and 10 are
The transparent acrylic plate 25 side of the cover 4 can be opened or closed, and the third movable lid 10, the second movable lid 9, and the first movable lid 8 can be folded in this order. First movable lid 8
As shown in FIG. 4, one end of each of the first to third movable lids 8, 9, 10 is provided between the first end and the transparent acrylic plate 25 of the cover 4 when closed.
Is rotatably supported by a pair of first support walls 11 protruding from the upper side wall of the cover 4 so as to define a foldable space. The spring 1 is attached to the other end of the first movable lid 8.
A lock claw 13 is provided that is urged to the outside via the lock claw 13. The lock claw 13 has a transparent acrylic plate 2 on the cover 4
Locking part 13 that can be locked to the locking part 4a formed on the 5 side
a is formed, the first movable lid 8 is locked to the cover 4 by locking with the locking portion 4a, and the switch 14 provided in the cover 4 is turned on to supply power to each flash valve 15. To emit light.

Further, in the central portion of the upper surface of the first movable lid 8, 2
A handle 17 is provided that can be pulled out or stored with respect to one support portion 16. On the other hand, the first movable lid 8
On the lower surface (the surface facing the transparent acrylic plate 25 when closed), two pressing portions 18 and 19 are formed so as to project, and each pressing portion 18 and 19 is formed when the printing plate is made. 2 By contacting the upper surface of the movable lid 9,
A uniform pressing load is applied to the porous resin sheet 30 via the movable lid 9 and the third movable lid 10.

One end of the above-mentioned second movable lid 9 projects from the upper side of the side wall of the cover 4 on the opposite side of the first support wall 11.
It is rotatably supported by the support wall 20. Further, on the lower surface of the second movable lid 9 (the surface facing the transparent acrylic plate 25 when closed), four pressing portions 21 are formed in the length direction. And each pressing part 21 is the above-mentioned pressing part 1
As in Nos. 8 and 19, when the printing plate is made, it comes into contact with the upper surface of the third movable lid 10 and applies a uniform pressing load to the porous resin sheet 30 via the third movable lid 10. Has become. One end of the third movable lid 10 is rotatably supported by a support portion 22 formed below the first support wall 11. An elastic sheet 2 made of rubber or the like is provided on the lower surface of the third movable lid 10.
3 is attached, and the elastic sheet 23 is configured to apply a uniform pressing force to the porous resin sheet 30 when making a printing plate.

The above-mentioned porous resin sheet 30 is formed so as to have fine open cells having a three-dimensional network structure inside a polyolefin foam or the like, and ink can be impregnated by the open cells. Then, the porous resin sheet 30 has a characteristic that when it is heated by the heat generation of the black film 34, the open cells are closed by melting.

The porous resin sheet 30 is directly contacted with the black film 34. As shown in FIG. 1, the black film 34 is made of PET (Polyethylene).
terephthalate) resin or the like is formed into a thin film, a film member 34a, and a coating layer 34b formed by applying ink or toner containing at least carbon or a polymeric substance to the film member 34a, the portion irradiated with infrared rays generates heat. It has the property of The black film 34 may be made of a PET film mixed with carbon. The resin used for the black film 34 is not limited to the PET resin as long as it is a material that generates heat by the infrared rays 37.

A printing image 36 is formed on the black film 34 by a pen member (not shown). The pen member is provided as an accessory to the plate making device 2 and has a solution containing a metallic or white pigment as an ink for printing. The printing ink is adapted to reflect or block the infrared rays 37 in the light component emitted from the flash bulb 15, and the black film 3 on which the printing image 36 is formed with this printing ink.
In No. 4, the portion other than the printed image 36 is heated by the irradiation of the infrared rays 37.

The plate making method will be described through the operation of the plate making apparatus 2 having the above-mentioned structure. First, a printing image 36 such as a desired character or figure is drawn and formed on the coating layer 34b of the black film 34 by using the printing ink of the pen member. After this, as shown in FIG. 3, after the first to third movable lids 8, 9, 10 are opened, as shown in FIG. Black film 3 on the transparent acrylic plate 25 so that
4 is placed as a manuscript.

Next, after the porous resin sheets 30 are stacked on the black film 34, as shown in FIG.
The movable lid 10, the second movable lid 9, and the first movable lid 8 are rotated toward the transparent acrylic plate 25 in this order. And
The first movable lid 8 is pressed with an appropriate load applied,
When the lock portion 13a of the lock claw 13 is locked to the locking portion 14 to bring the first movable lid 8 into the closed state in which the first movable lid 8 is locked to the cover 4, the switch 14 is turned on via the lock claw 13. In this ON state, the flash bulb 15 which is supplied with power emits light.

When the flash bulb 15 emits light as described above, as shown in FIG. 1, the infrared ray 37 in the light component passes through the transparent acrylic plate 25 and reaches the black film 34 on which the print image 36 is formed. To do. At this time, the printing image ink on which the printing image 36 is formed is made of a solution containing a metallic or white pigment, and reflects or blocks the infrared rays 37 in the light component. Therefore,
The infrared rays 37 that have passed through the transparent acrylic plate 25 are transferred to the printed image 36.
While being reflected or shielded by, the light reaches the black film 34 including the film member 34a and the coating layer 34b in the portion other than the image 36. As a result, the portion of the black film 34 other than the printed image 36 is exposed.

Then, as shown in FIG. 2, the exposed portion of the black film 34 generates heat above the melting point of the porous resin sheet 30, and this heat generation melts the porous resin sheet 30. (B) As shown in (B), the ink non-exudation portion 30 b in which the air bubbles on the surface portion are blocked and the ink exudation portion 30 a in which the air bubbles on the surface portion remain are formed on the porous resin sheet 30. After that, the porous resin sheet 30 used as a printing plate is removed from the plate making device 2 and the ink exuding portion 30a is impregnated with ink,
It will be a printing plate that can be printed continuously.

As described above, since the printing image 36 is drawn on the black film 34 using the printing ink and the black film 34 is used as an original, a conventional original sheet is prepared and the original sheet is exclusively used. It is not necessary to perform the work of making the liquid semi-transparent. Therefore, the preparation for plate making can be easily performed, and the plate can be manufactured by the black film 34 and the porous resin sheet 30, so that the manufacturing cost of the plate can be reduced. There is. Further, by using a solution containing a metallic or white pigment as the printing ink, the metallic or white pigment reliably reflects or blocks light, so that the printing plate can be manufactured with high accuracy. You can also do it.

[0022]

According to the first aspect of the present invention, a step of forming an original by drawing an image such as a character or a figure on a black film with an image-forming ink that reflects or blocks light, The step of placing a porous resin sheet having continuous bubbles that can be impregnated with ink on the original document in which the image is drawn, and heating the portion of the original document other than the printed image by the light emitted from the light emitter to print the original image. And a step of producing a printing plate by closing open cells of the porous resin sheet in a corresponding portion other than the above. As a result, a printing image is drawn on a black film using the printing ink, and this black film is used as a manuscript, so a conventional manuscript sheet is prepared, and this manuscript sheet is made semitransparent with a dedicated liquid. It becomes unnecessary to do the work. Therefore, it is possible to easily prepare the plate-making, and it is possible to manufacture the plate with the black film and the porous resin sheet, so that it is possible to reduce the manufacturing cost of the plate.

According to a second aspect of the present invention, in the first aspect, the printing ink is a solution containing a metallic or white pigment. As a result, the metallic or white pigment surely reflects or blocks light, and therefore, it is possible to produce a printing plate with high accuracy.

According to a third aspect of the present invention, there is provided a plate making apparatus having a translucent base plate which allows the light of the light-emitting body to pass therethrough, a porous resin sheet having continuous bubbles capable of being impregnated with ink, and a black film. A pen member having a printing ink for reflecting or blocking the light is attached, and an image such as a character or a figure is drawn on the black film placed on the translucent base plate with the pen member, The black film is heated by the irradiation of light to close the open cells of the porous resin sheet to produce a printing plate. As a result, a printing image is drawn on a black film using the printing ink, and this black film is used as a manuscript, so a conventional manuscript sheet is prepared, and this manuscript sheet is made semitransparent with a dedicated liquid. It becomes unnecessary to do the work. Therefore, plate preparation can be easily performed, and the plate can be manufactured with the black film and the porous resin sheet, so that the plate manufacturing cost can be reduced. Furthermore, if a pen member is attached, the printing plate can be produced by drawing the printing image on the original sheet as in the past, in addition to drawing the printing image directly on the black film. This has the effect of diversifying production.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a state in which infrared rays are irradiated on a black film.

FIG. 2 is an explanatory diagram showing a state in which an ink exuding portion and an ink non-exuding portion are formed on a porous resin sheet.

FIG. 3 is a schematic configuration diagram of a plate making apparatus in an open state.

FIG. 4 is a schematic configuration diagram of a plate making apparatus equipped with a porous resin sheet.

FIG. 5 shows a printing plate sheet, (A) is a schematic cross-sectional view of the printing plate sheet, and (B) is a perspective view of the printing plate sheet.

FIG. 6 shows a conventional example and is an explanatory diagram showing a state in which infrared rays are radiated to a black film.

FIG. 7 shows a conventional example and is an explanatory diagram showing a state in which an ink exuding portion and an ink non-exuding portion are formed on a porous resin sheet.

[Explanation of symbols]

 2 Plate making device 4 Cover 8 1st movable lid 9 2nd movable lid 10 3rd movable lid 11 1st support wall 12 Spring 13 Lock claw 14 Switch 15 Flash valve 17 Handle 20 2nd support wall 23 Elastic sheet 25 Transparent acrylic plate 26 Recesses 30 Porous resin sheet 30a Ink bleed portion 30b Ink non-bleed portion 34 Black film 36 Image 37 Infrared

Claims (3)

[Claims] 1. A step of creating an original by drawing an image of a character, a figure or the like on a black film with an ink for image printing that reflects or blocks light, and a step of forming the original on which the image is drawn, Placing a porous resin sheet having open cells capable of impregnating ink, heating the portion of the document other than the printed image with the light emitted from the light-emitting body, and heating the portion of the document other than the printed image. A step of producing a printing plate by closing open cells of the porous resin sheet. 2. The plate-making method according to claim 1, wherein the printing ink is a solution containing a metallic or white pigment. 3. A translucent base plate that allows light of a light emitting body to pass therethrough,
A plate-making apparatus having a porous resin sheet having open cells capable of impregnating ink and a black film is attached with a pen member having an image-forming ink that reflects or blocks the light of the light-emitting body, Draw an image such as letters and figures on the black film placed on the base plate with the pen member, heat the black film by irradiation of the light of the light emitting body, and close the open cells of the porous resin sheet. A plate making device characterized by producing a printing plate.