JPH11157194A - Production of stamp plate face - Google Patents

Abstract

PROBLEM TO BE SOLVED: To produce a print plate face having high resolution by forming a mirror image of a print on the protective film of a photosensitive resin plate in the process for making a stamp plate face and then irradiating the mirror image with UV-rays from above the protective film. SOLUTION: A recording medium bonded tightly with a peelable UV-ray transmitting film 2 is employed on the surface of a photosensitive resin layer 3 being rendered insoluble to a specified solution upon irradiation with a specified quantity of UUV-rays. A specified image 1 is then printed on the film 2 of the recording medium with a LV-ray nontransmittible ink and the photosensitive resin layer 3 is irradiated with a specified quantity of UV-rays through the film 2. Subsequently, the film 2 is peeled off and the part on the surface at the photosensitive resin layer 3 not rendered insoluble is removed by the specified solution thus obtaining a protruding and recessed image corresponding to the image printed on the film 2 on the surface of the photosensitive resin layer 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a stamp plate in which a predetermined image is formed as a concave-convex image. Provided is a method for easily and accurately obtaining the above-mentioned predetermined concavo-convex image by using a photosensitive resin which changes to insoluble.

[0002]

2. Description of the Related Art In recent years, there have been marketed a number of stamping machines on which amateurs or beginners without special skills can easily make stamps. Among them, those which can easily produce a stamp by using a photosensitive resin plate (for example, a water-based nylon-based photosensitive resin relief plate) as a plate material of the stamp are mainly used.

[0003] A conventional general stamp creation method will be described below with reference to FIGS. 4, 5 and 6. FIG. 4 is a perspective view showing that the negative film on which the pattern 1 has been prepared is to be closely mounted on the photosensitive resin plate of the stamp. In FIG. 4, reference numeral 3 denotes a photosensitive resin plate formed on the base film 4 and, when exposed to ultraviolet rays, the exposed portions are cured and the unexposed portions remain water-soluble. Reference numeral 2 denotes a protective film made of polyethylene terephthalate or the like which has good adhesion to the photosensitive resin plate 3 and protects the surface of the photosensitive resin plate 3. Reference numeral 5 denotes a negative film on which a design 1 having a mirror image relationship with a printed surface is formed based on the principle of a stamp. The negative film 5 is formed by removing the protective film 2 and aligning the negative film 5 on the photosensitive resin plate 3. , Placed in close contact.

[0004] The process of creating a stamp will be described below with reference to the flowchart of FIG. First, a negative film 5 of the design 1 is formed in advance on a photosensitive resin plate. Next, in order to protect the photosensitive resin plate 3, the protective film 2 stuck on the photosensitive resin plate 3 is peeled off, the negative film 5 and the photosensitive resin plate 3 are aligned, and the photosensitive film 3 is exposed. Is placed on the conductive resin plate 3 in close contact. Then, by using the negative film 5 as a mask, ultraviolet light is irradiated from an ultraviolet light irradiation unit (not shown) provided in advance above the photosensitive resin plate 3 to perform exposure.

[0005] Then, the portion of the photosensitive resin plate 3 exposed to the ultraviolet rays is cured, and the unexposed portion remains water-soluble. Therefore, the unexposed portion of the photosensitive resin plate 3 is washed off while being immersed in water, warm water or the like using a brush or the like. Then, the photosensitive resin plate 3 is exposed again to ultraviolet rays in order to remove the moisture and to dry the photosensitive resin plate 3 to stabilize the plate surface. The stamp plate 9 completed by the above steps is fixed to a stamp base member 10 as shown in FIG. 6, and the stamp is completed.

[0006]

However, according to the above-described conventional stamp making method, the protective film 2 on the photosensitive resin plate 3 is peeled off immediately before exposure to ultraviolet light, and the previously prepared negative film 5 is replaced with the photosensitive resin. If it is not accurately placed at a predetermined position on the plate 3 and is not closely adhered, a gap is formed between the negative film 5 and the photosensitive resin plate 3 when exposed to ultraviolet light, and the light exposed by the gap becomes Spread, pattern 1
Resolution is degraded. Therefore, the negative film 5 must be accurately placed in close contact with the photosensitive resin plate 3 using a specially manufactured jig, which is a difficult task for an amateur or a beginner.

[0007]

In order to solve the above-mentioned problems, a method for manufacturing a stamp plate according to the present invention is directed to a photosensitive resin in which a portion irradiated with a predetermined amount of ultraviolet light changes to insoluble in a predetermined solution. On the surface of the layer, using a recording medium in which a film that transmits ultraviolet light is peelably adhered and bonded, a predetermined image is printed on the film of the recording medium with ink that does not transmit ultraviolet light, and the printed image is printed. After irradiating the photosensitive resin layer with a predetermined amount of ultraviolet rays through the film, the film is peeled off, and thereafter, the portion of the surface of the photosensitive resin layer that has not changed to insoluble is removed by the predetermined amount. And thereby obtaining an uneven image corresponding to the image printed on the film on the surface of the photosensitive resin layer.

According to the present invention, not only a difficult operation for a layman but also a trouble of laying out a negative film on which a pattern is formed accurately on a photosensitive resin plate and placing it in close contact with the photosensitive resin plate is eliminated. It is possible to provide a method of manufacturing a stamp plate that can be streamlined and can produce a stamp plate having a high resolution.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 of the present invention is characterized in that a portion irradiated with a predetermined amount of ultraviolet light is irradiated with ultraviolet light on the surface of a photosensitive resin layer which changes insoluble in a predetermined solution. Using a recording medium in which the film to be transmitted is adhered and bonded in a releasable manner, a predetermined image is printed on the film of the recording medium with an ink that does not transmit ultraviolet rays, and through the printed film, After irradiating the photosensitive resin layer with a predetermined amount of ultraviolet light, the film is peeled off, and thereafter, the portion of the surface of the photosensitive resin layer that has not changed to insoluble is removed by the predetermined solution. A method in which a concavo-convex image corresponding to the image printed on the film is obtained on the surface of the photosensitive resin layer, and the protective film itself closely mounted on the photosensitive resin plate is stamped. In order to use as a negative film of an image, it is not necessary to arrange a negative film made separately by using a jig at a predetermined position of a photosensitive resin plate and perform a difficult work of closely attaching the negative film. This has the effect of eliminating exposure mistakes and making it possible to produce stamps with good yield and high resolution.

An embodiment of the present invention described in claim 1 of the present invention will be described below with reference to FIGS.

(Embodiment 1) FIG.
FIG. 2 is a perspective view of a plate member 9 in one step of a plate manufacturing method in which the design 1 is drawn directly on the protective film 2, and FIG. 2 is a flowchart showing the procedure of the stamp making method of the present invention.
FIG. 3 is a conceptual diagram showing a mechanism for directly transferring the design 1 onto the protective film 2 by the thermal head using the ink of the hot-melt ink ribbon. Note that the same components as those of the conventional example are denoted by the same reference numerals and description thereof is omitted.

Since the photosensitive resin plate 3 of the stamp plate surface shown in FIG. 1 of the present invention is soft and easily deformed, it has good adhesion to the photosensitive resin plate 3 and prevents deformation of the photosensitive resin plate 3. Polyethylene terephthalate, which has sufficient strength to suppress and is easy to process at a low cost, is generally used as the protective film 2. This polyethylene terephthalate can be used as a negative film for forming a stamp plate surface because not only is it easy to transfer the pattern 1 with the ink of the hot-melt ink ribbon, but also it is easy to transmit ultraviolet rays.

A method for forming the pattern 1 on the protective film 2 will be described below with reference to FIGS. Reference numeral 6 in FIG. 3 denotes a thermal head for printing the design 1 on the protective film 2, and reference numeral 8 denotes a space between the thermal head 6 and the base film 4, the photosensitive resin plate 3, the protective film 2,
A platen roller that holds the hot-melt ink ribbon 7 that is wound around the ink cassette 11 and transfers ink according to a design, and conveys the ribbon in one direction.

In a configuration in which the design 1 is formed on the protective film 2 itself on the photosensitive resin plate 3 using the printer as described above, the design 1 having a mirror image relationship with the stamped image of the stamp is provided.
Is prepared in advance because it can be easily created by a personal computer, the created image information of the symbol 1 is transmitted to the thermal head 6, and the protective film 2 is integrally formed with the photosensitive resin plate 3 and the thermal head 6 and the platen roller. By transporting in one direction while holding and thermocompression bonding at 8, the hot melt ink is transferred onto the protective film 2, and the design 1 is created. Then, the protective film 2 is formed as a mask for the pattern 1, and is exposed to ultraviolet rays. After irradiating a predetermined amount of ultraviolet rays for a predetermined time, the corners of the protective film 2 are grasped by hand and peeled off.

The portion of the photosensitive resin plate 3 that has been exposed to ultraviolet light is cured, and the unexposed portion remains water-soluble. Therefore, the unexposed portion of the photosensitive resin plate 3, that is, the uncured portion is washed out while being immersed in water, warm water or the like using a brush or the like. Then, exposure is performed again with ultraviolet rays or the like in order to remove moisture and dry to stabilize the plate surface. After that, the plate completion member 9 is fixed to the stamp base member 10 to complete the stamp.

In the embodiment of the present invention, the photosensitive resin plate 3
Although a sublimation type printer has been described as a means for drawing the design 1 directly on the protective film 2 of the above, other means,
For example, any printer, such as an ink jet printer, a laser printer, or a seal, which can draw characters, images, etc., may be used.

[0017]

As described above, according to the stamp producing method of the present invention, the protective film itself, which is in close contact with the photosensitive resin plate, is produced separately as a negative film for the stamp image. It is not necessary to perform a difficult work for an amateur or a beginner to accurately arrange a negative film at a predetermined position of a photosensitive resin plate using a jig and adhere the same to each other. Due to the high adhesiveness, exposure errors are eliminated, the yield is improved, and a stamp with high resolution can be created.

[Brief description of the drawings]

FIG. 1 is a perspective view of a plate member in one step of a method of manufacturing a plate of a stamp according to an embodiment of the present invention.

FIG. 2 is a flowchart of a stamp plate manufacturing method according to the embodiment.

FIG. 3 is a sectional view of a main part of the printer used in the embodiment.

FIG. 4 is a perspective view showing a state in which a negative film is closely mounted on a photosensitive resin plate of a conventional example.

FIG. 5 is a flowchart of a conventional stamp plate manufacturing method.

FIG. 6 is a perspective view showing an assembled state of a stamp plate member and a stamp base member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Design 2 Protective film 3 Photosensitive resin plate 4 Base film 5 Negative film 6 Thermal head 7 Hot-melt ink ribbon 8 Platen roller 9 Plate completion member 10 Stamp base member 11 Ink cassette

Claims (1)

[Claims] 1. A recording in which a film irradiated with ultraviolet light is peelably adhered to a portion irradiated with a predetermined amount of ultraviolet light on a surface of a photosensitive resin layer which is insoluble in a predetermined solution. Using a medium, a predetermined image is printed on the film of the recording medium with an ink that does not transmit ultraviolet light, and the photosensitive resin layer is irradiated with a predetermined amount of ultraviolet light through the printed film. By peeling off the film, and thereafter, by removing the portion of the surface of the photosensitive resin layer that did not change to insolubility with the predetermined solution, a concavo-convex image corresponding to the image printed on the film Is obtained on the surface of the photosensitive resin layer.