JPS60240737A - Photopolymer-containing body for production of photocured object - Google Patents

Abstract

PURPOSE:The titled body which is excellent in performance and can be easily handled, prepared by tightly packing a liquid photopolymer composition into a transparent film bag by deaeration. CONSTITUTION:A liquid photopolymer composition in an amount to fill at most about one third of the maximum volume of a container is poured into a transparent bag container made of a transparent film of a polyester resin, polypropylene resin, cellulose resin, or the like (one side of the bag may be constituted of an opaque material such as aluminum foil). The air within the container is purged and the container is sealed to form a soft flexible photopolymer-containing body. By closely contacting an image sheet (e.g., a photograhic negative film) with the transparent surface of the above body and irradiating it with ultraviolet rays, the photopolymer composition in the body is cured and the desired image- like cured product can be easily formed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a photosensitive resin encapsulation for producing photocurable objects.

[Conventional technology]

Photosensitive resin compositions that are liquid at room temperature have been on the market for more than 10 years, and have been used to make printing plates, stamps, and the like. However, since the resin is a viscous liquid, there are many difficulties in handling it, and various manufacturers have developed methods and devices for pouring liquid resin and photo-curing it. The method generally involves placing a figure to be formed by photocuring, such as a photographic negative film, on a glass plate and covering it with a transparent film, and then placing a frame with a certain thickness on top of it to prevent the liquid resin from flowing out. A resin is poured into the resin, which is then covered with a transparent film, which is then pressed down with a glass plate, and ultraviolet light is irradiated to photocure the pattern. In this case, pouring a certain thickness of resin into a certain frame, covering it with a film to prevent air bubbles, and holding it down with a glass plate required skill and was generally not a method that anyone could do.

Additionally, a method of rolling the top coating film while rolling it back using a roller was also used, but this was a very expensive and highly accurate device) and was not freely available to the general public. .

Compared to solid plate-shaped photosensitive resins, liquid photosensitive resins are cheaper because they do not require a plate-forming process at the manufacturer, and the surface of the resin is less likely to be damaged during transportation or handling. It has many advantages, such as the fact that it is extremely easy to develop the photosensitive resin after it forms a photoimage, and although it is hoped that this liquid photosensitive resin can be handled more freely, it remains unresolved. there were.

[Problem that the invention seeks to solve]

The present inventor has solved these problems without losing the characteristics of liquid photosensitive resin, and it is easy to handle and easy to handle like plate-shaped resin. This is a completed product that can be freely formed using light.

[Means to solve the problem]

That is, the present invention relates to the production of a photocurable object that can be used as a bag, in which a liquid photosensitive resin composition is degassed and sealed within a bag whose at least one side is made of a transparent film to the extent that flexibility is not lost. [Function] The present invention is for enclosing and sealing a photosensitive resin composition in a bag made of a transparent film. In relation to the amount of resin, one-third or less, preferably one-fifth or less of the maximum volume of resin is added, air is excluded, and the container is sealed. When doing this, the resin can float freely within the transparent bag, and the resin-filled bag has flexibility.
If the bag is sandwiched between rigid bodies such as glass plates and pressed together, the resin will spread flatly over the entire surface of the bag, forming a flat plate. When an image is to be photocured, if an image such as a photographic negative film is placed on this side and irradiated with ultraviolet light, the photocuring progresses according to the image and a photocured object can be produced. Furthermore, without forming a photoimage, a photo-cured resin plate can be produced by irradiating a flat plate-shaped resin with ultraviolet light.

The transparent bag-like containers used in the present invention include polyester resin, polypropylene resin, polyethylene/Wd resin, vinyl chloride resin, nylon resin, polyvinyl alcohol resin,
It is possible to freely use transparent films and sheets that allow ultraviolet light to pass through, such as polyvinyl acetate resin, polystyrene resin, cellulose resin, etc., and the thickness, flexibility, etc.
Rigidity etc. are selected depending on the product being manufactured. Further, the materials, thicknesses, etc. of the films used on the front and back sides of the bag-shaped bag do not necessarily need to be the same, and can be selected as appropriate. Furthermore, one side of the bag is made of an opaque flexible material, such as a thin plate of aluminum, iron, copper, zinc, etc., foil, paper, nonwoven fabric, etc., and processed products thereof, or a composite laminate of these and a resin film, or printing. It is also possible to use materials that have been processed or painted.

〔Example〕

Examples and usage examples of the present invention are shown below.

Example 1 Vertical 111 made of 30μ thick polyethylene film
A viscosity of 100 parts by weight of a photosensitive resin prepared by copolymerizing butenetetracarboxylic acid with polyethylene glycol having an average molecular weight of 600 and adding an acryloyl group, 50 parts by weight of hydroxyethyl methacrylate, and 2 parts by weight of benzoin was placed in a flat bag with a width of 10011. A liquid photosensitive resin composition of 1,000 voids was poured into a bag of 50 f4, and both sides of the bag were sealed, deaerated, and sealed vertically and horizontally 1 (13 cm) to obtain a photosensitive resin encapsulated body for producing a photocurable object.

Usage example 1゜The resin liquid of the photosensitive resin encapsulated body obtained in Example 1 is unevenly distributed in the bag, and the bag is wrinkled, but when it is sandwiched between two glass plates and crimped, the inside of the bag is unevenly distributed. The resin liquid flows uniformly and spreads vertically and horizontally.
It became a plate with a diameter of 0 cm and a thickness of 2 liao. In this state
After photocuring by irradiating with ultraviolet light, the bag end was cut to obtain a photocurable resin plate with a thickness of 511F and a length and width of 1 Oal.

Example 2 Two transparent films with polyethylene fused processability added to one side of a cellophane film J1 having a width of 12 cm, a length of 201 mm, and a thickness of 100 μm, with the fused surfaces aligned, and a width of 10 mm on three sides. MM was thermally bonded to produce a flat bag. The viscosity is that 40 parts by weight of methacrylic acid, 2 parts by weight of acrylamide powder, and 2 parts by weight of benzoin are blended into 100 parts by weight of a photosensitive resin in which an acryloyl group is added to a copolymerized polyester of polyethylene glycol and 7-maric acid with an average molecular weight of 400. 800-voice photosensitive resin was enlarged to 30mm, pressed on both sides, degassed, and made to 111mm at a length of 15~.
A photosensitive resin encapsulation body for producing a photocurable object was obtained by thermal bonding with a width of 111 mm and sealing.

Usage example 2 The resin encapsulated body of Example 2 is glued into a frame shape with a circumference of 1 (lH), so the rectangular shape is maintained, and the resin is held between two transparent films within the frame, making it slightly Although it is unevenly distributed, it maintains a shape of approximately 2W thick and 151cm long and 10cm wide.This item was made with a photo negative film with the address and name taken on one side and pressed with two glass plates from both sides to make it into a resin. The solution was applied to a 2M thick uniform film, cut open, washed with soapy water and developed to obtain a letterpress stamp of address and name. A 200 μm polyester film coated with urethane ester thermoadhesive resin on one side was cut into 11 pieces of width and 153 mm length, and the three sides were heat-bonded with a width of 5M. 121r of the same photosensitive resin liquid as in Example 2 was injected into the flask, and both surfaces were crimped, degassed, and sealed to obtain a photosensitive resin encapsulated body for producing a photocured object.

Usage example 3゜Since the resin encapsulation body of Example 3 is a polyester film with a rigidity of 200 μm on one side, it has good dimensional maintainability, and the liquid resin was applied in the form of 1 gl thick, 101 m wide, and 12 cIl long. A transparent thin plate-shaped photosensitive resin encapsulation body was produced. This one: Layer halftone photographic negative film for printing on the propylene film side, sandwich it between two glass plates as in usage example 2, and hold it for 50 seconds on the opposite side of the photographic film, and for 3 minutes on the photographic film side. After exposure, the propylene film was cut out and a halftone photographic letterpress plate was obtained which was adhered onto a 100 μm thick polyethylene film.

Example 4: A polypropylene film with a thickness of 4° and an aluminum foil with a thickness of 50μ are laminated onto a polyester film with a thickness of 100μ, the exposed aluminum surface is roughened, and a urethane ester thermoadhesive resin is applied. Using the same method as in Example 3, the thickness was 1 mm, the width was 10 a II,
A photosensitive resin encapsulation body for producing a photocurable object having a length of 12 ff was obtained.

Usage example 4゜A negative film with an address and name written on it was tightly attached to the transparent film side of the resin encapsulation body of Example 4, and it was crimped with a glass plate.The polypropylene film was irradiated for 5 minutes using a 400 watt high pressure mercury lamp. By cutting it out, washing it with soapy water, and developing it, I was able to obtain a nameplate with the address and name fixed on the rough surface of the aluminum foil.

Example 5 A liquid photosensitive resin composition 300f with a viscosity of 900 poise prepared by adding an acryloyl group to a copolyester of polypropylene glycol and citric acid with an average molecular weight of 600 was placed in a polyethylene bag with a thickness of 30μ, a width of 25c11, and a length of 30c1s.
r was encapsulated in the same manner as in Example 1 to obtain a photosensitive resin encapsulated body for producing a photocurable object.

Usage example 5゜Place the resin encapsulated body of Example 5 flat on a glass plate, spread your hands over it and press it to move the liquid according to the shape of your hands. The resin was cured by irradiation for 6 minutes, and a photocured resin handprint was obtained.

Example 6 Liquid photosensitive resin composition 1 used in Example 5 in a flat polyethylene bag with a thickness of 30μ, a width of 1OcII, and a length of 1m
00 gr was encapsulated in the same manner as in Example 1 to obtain a photosensitive resin encapsulated body for producing a photocurable object.

Usage Example 6゜The resin encapsulated body of Example B was irradiated onto the crooked area of a human wrist for a certain amount of time, and was photocured, making it possible to immobilize the affected area with light weight, water resistance, and little inhibition of movement.

〔Effect of the invention〕

The present invention is a photosensitive resin encapsulation body for producing a large number of photocurable objects as described above, which does not lose the characteristics of a liquid photosensitive resin and is easy to handle in the same way as a plate-shaped resin. Furthermore, it has high industrial applicability as it can freely perform optical molding into curved surfaces, which is considered inconvenient with plate-shaped resins.

Patent Applicant Foundation, Institute of Production Development Science, Procedural Amendment (Voluntary) ■, Indication of the Case, Patent Application No. 97182 of 1982, Name of the Invention, Photosensitive Resin Encapsulant for Manufacturing Photocurable Objects 3, Make Amendments Relationship with the case Patent applicant ◎ 606 Kyoto City Sakyo Map Shimogamo Mori Honmachi 15 4. 1. Detailed explanation of the invention in the specification subject to the amendment 5. Contents of the amendment (1) Specification, page 6, 10 The line ``Thickness 2 wj'' will be corrected to ``Thickness 5 Dragon''.

(2) In the second line of page 9 of the specification, the statement "100μ thick polyethylene film" will be corrected to "200μ thick polyester film."

(Author's signature and seal of the above proceeding) Mr. Commissioner of the Japan Patent Office ■, Indication of the case, Patent Application No. 97182 of 1982, Title of the invention, Photosensitive resin encapsulation for manufacturing photocurable objects 3, Person making the amendment Case and Relationship Patent applicant [Co., Ltd.] 606 154 Shimogamo Mori Honcho, Sakyo-ku, Kyoto-shi, Detailed explanation of the invention in the specification subject to amendment, Column 5, Specification of contents of amendment, page 6, line &, page 7, line 5 In the 5th line of page 10, the words ``Boys'' have been corrected to ``Centibois''.

Claims (1)

[Claims] (1) Photosensitive material for producing photocurable objects that can be used as a bag-like bag in which a liquid photosensitive resin composition is degassed and sealed to the extent that flexibility is not lost in a bag whose at least one side is made of a transparent film. Polymer resin inclusion body.