JPH04100048A - Photosensitive scribing material - Google Patents

Abstract

PURPOSE:To drastically decrease a series of troublesome operations in the case of correction of maps by simultaneously imparting photosensitivity to a scribing layer. CONSTITUTION:The photosensitive scribing layer having the photosensitivity and scribing property is provided on a transparent base. Namely, a high-polymer compsn. for binding a diazonium salt and other photographic components and an alkyd resin for developing the scribing property are used as a basic org. high-polymer material and resins known as hard resins, such as styrene/maleic acid copolymers, petroleum resins, styrene/acryl resins, phenol resins or urea resins, are used therewith, by which the photosensitive scribing material having the photographic characteristics and scribing characteristics in combination is obtd. Sheets or films of polyester, polystyrene, polyamide, polyethylene, polypropylene, etc. or glass, etc., are used.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a photosensitive scribe material for plate making which is suitably used for correcting aging of roads, buildings, rivers, etc. in map making.

[Prior Art and Problems to be Solved by the Invention] Generally, when a map is to be corrected for changes over time, a scribe base film on which the drawing lines of a topographic map are scribed is used. In order to correct the aging of a map using this scribe base film, first correct unnecessary lines with correction fluid, scribe the corrected areas from the original topographic map manuscript film, and then roughen it. This is done by transferring the image onto a silver halide film.

In this case, there is a method of creating a positive film from the original map (original topographic map), scraping off the unnecessary drawing lines with a knife, etc., and adding the necessary new drawing lines, but this method does not cover the base film. This had the disadvantage that the lines that you were trying to correct or add could not be drawn sharply, making the lines thin or blurry.

Another method is to apply a photosensitive resist layer on a regular scribe base film, dry it, perform the printing process using the original image as a manuscript, and then wash the unexposed resist layer with a developer. After printing out, the scribe layer where the resist layer was removed is etched with an etching liquid, the remaining resist layer is removed to create a negative plate, and the areas that need to be corrected are opaque using a correction liquid. Alternatively, a method has been used in which the drawing line to be corrected is scribed.

These series of operations were extremely troublesome, requiring the following steps: coating the resist layer, drying, exposing, developing, etching, removing the exposed portion of the resist layer, and scribing or opaque.

In addition, the scribe layer of commonly used scribe materials is opaque, so when performing scribe work,
It was not possible to work over the original, and it was necessary to stamp the image on the scribe layer in order to accurately scribe the desired location.

[Object of the Invention] The present invention solves the problems of the prior art and provides a photosensitive scribe material that can facilitate a series of complicated operations when correcting maps using scribe materials. The purpose is to

A further object of the present invention is to provide a photosensitive scribing material that allows accurate scribing work.

[Means for Solving the Problems] The photosensitive scribe material of the present invention that achieves the above object is a material in which a photosensitive scribe layer having photosensitive and scribing properties is provided on a transparent support, and is particularly suitable. is provided with a photosensitive scribe layer containing an organic polymer substance, hard resin, filler, diazonium salt, and coupler.

Generally, second originals using diazonium salts cannot satisfy the scribing characteristics because the photosensitive layer uses a polymeric substance with strong coating properties such as cellulose acetate butyrate or cellulose acetate propionate.

On the other hand, even if an attempt is made to impart photosensitivity by adding diazonium salts and couplers to the scribe layer, which is mainly made of alkyd resin used in ordinary scribe materials, the alkyd resin itself is not suitable as a binder for diazonium salts, etc. , bleeding of additives, storage stability, developability (color development speed), etc. are significantly reduced, and photographic performance cannot be satisfied.

Furthermore, in order to develop scribing properties, the amount of added pigments is often adjusted by increasing or decreasing the amount of added pigments, which makes it difficult to maintain transparency.

In the present invention, the basic organic polymers are a polymer compound for binding diazonium salts and other photographic components and an alkyd resin for developing scribing properties, and styrene-maleic acid copolymer, petroleum By using resins called hard resins such as styrene/acrylic resins, phenolic resins, or urea resins, photosensitive scribing materials that have both photographic properties and scribing properties have been made possible.

As the transparent support used in the present invention, sheets or films of polyester, polystyrene, polyamide, polyethylene, polypropylene, etc., glass, etc. can be used. These transparent supports may be subjected to corona treatment or undercoat treatment in order to improve their adhesion to the photosensitive scribe layer, or an adhesive film that is easy to undercoat treatment may be used.

Further, a transparent undercoating may be applied to prevent the scribing needle from biting into the transparent support from the scribing layer and damaging it during scribing.

The organic polymer material in the photosensitive scribe layer in the present invention is a mixture of an organic polymer compound for binding diazonium salt and other photographic components, a resin that exhibits scribing properties, and heart resin. Ru.

Examples of the organic polymer compound include cellulose compounds such as cellulose acetate, methylcellulose, ethylcellulose, cellulose acetate butyrate, cellulose acetate propionate, and nitrocellulose, alkyd resins, various modified alkyd resins, and the like.

Hard resin is used to compensate for the drop in scribing performance when achieving see-through properties by minimizing the amount of pigment added or using organic pigments that do not have a high light blocking density.
Styrene resin, maleic acid resin, styrene/maleic acid copolymer, acrylic acid copolymer, ketone resin, rosin,
Examples include aromatic or fatty acid hydrocarbon resins, melamine resins, urea resins, etc., and these may be used alone or in combination of two or more.

The combination of the diazonium salt and coupler in the present invention can be any combination that can develop color in an alkaline atmosphere and provide a coloring density sufficient to mask actinic rays.
Known diazonium salts and couplers can be used.

In this case, the diazonium salt and coupler to be used do not necessarily need to be one each in view of the hue of the color, developability, light-shielding properties, etc. Furthermore, addition of acids and the like is also effective in improving storage stability and the like.

The filler powder used in the present invention may be one that imparts scribing properties and does not impair see-through properties, such as silica, calcium carbonate, alumina, talc, zinc oxide, clay, and other organic pigments that have a low light-shielding density. Those that are not expensive are used.

The photosensitive scribe material of the present invention desirably contains a lubricant and/or a plasticizer in the photosensitive scribe layer. The lubricant and plasticizer are used to obtain sharp scribing properties, ease of scribing, resistance to scratching of the surface, and stability of scribing performance over time, and either or both may be added. Lubricants include natural or synthetic waxes, higher fatty acids or fatty acid amide compounds, polyhydric alcohol esters of fatty acids, metal soaps, etc. Plasticizers include phthalate esters, aliphatic dibasic acid esters, epoxy plasticizers, and fatty acids. Known esters can be used.

Hereinafter, preferred embodiments of the photosensitive scribe material of the present invention will be described.

[Examples] Example 1 The following formulation was dispersed and mixed in a dark place for 3 hours using a paint shaker to obtain a coating liquid for use with a photosensitive scribe.

Part by weight 1, Methyl Celsolve 432, Toluene 153, Isopropyl Alcohol 154, Acetate Butyric Acid Cell Kanosu 381-0.5
6 (manufactured by Eastman Kodak Co.) 5 HalonllOH4 (manufactured by Toagosei Co., Ltd.) 6. Betsukosol 1308 9 (manufactured by Inu Nippon Ink Co., Ltd.) 7. Tartaric acid 0. 58, Zinc chloride 0. 59, Aerosil OK412 2 (manufactured by Nippon Aerosil Co., Ltd.) 10, Coupler 601, 1.5 (
11. Diazo 75 (manufactured by Antriuse, Inc., USA) 12. Alflo H The obtained coating liquid was applied onto a 100 μm polyester film using a Mayer bar, and after drying, an 8 μm thick film was coated. A photosensitive scribe material having a photosensitive scribe layer was obtained.

The resulting photosensitive scribe material was pattern-baked at 600 m J/c rri using a 2 kW ultra-high pressure mercury lamp jet light, and developed with ammonia. A high-density image with DUU=0.2 or less was obtained, and the see-through property was nevertheless good.

The scribing performance was as follows.

1) Cross line (intersection): 0.04mm or less 2)
Scribing feeling: Good 3) High-speed scribing: Curves... Good Straight lines... Good Low-speed scribing: Curves... Good Straight lines... Good As above, it has a high UV light shielding density and is see-through so that you can see the original placed below. A photosensitive scribe material with good scribing performance over time was obtained.

Example 2 A photosensitive scribe material was obtained in the same manner as in Example 1 except that the photosensitive scribe layer had the following formulation.

1 Methyl Celsolve 2, Toluene 3, Isopropyl Alcohol 4, Acetate Propionate Cel Kanosu 482-0.5 (manufactured by Eastman Kodasoku) 5 Styrite Z-1455 (Daido Kogyo) 6 Betucosol 1307-EL (dog (manufactured by Nippon Ink Co., Ltd.) 7. Beckamin G1850 (manufactured by Inu Nippon Ink Co., Ltd.) 8. Tartaric acid 9, Zinc chloride 10, Sunlight 5L-700 (manufactured by Takehara Kogyo Co., Ltd.) 11. Coupler 630 (manufactured by Antriuse, USA) 12 Diazo 75 Weight part: 0.5 2.5 (manufactured by Antriuse, USA) 13. Butyl stearate 1 The same treatment as in Example 1 was performed, and the same results were obtained.

Example 3 The following formulation was dispersed and mixed for 2 hours while shielding from light using an attritor to obtain a coating liquid for photosensitive scribing.

5゜6゜7゜Methyl cellulose butluene isopropyl alcohol acetic acid propionate cellulose 482-0.5 (manufactured by Eastman Kodak) Paraloid A-21 (manufactured by Rohm Antohaas) Beccosol 1334-EL (manufactured by Inu Nippon Ink) Super Beckamine G-820 (manufactured by Inu Nippon Ink Co., Ltd.) Weight part 7.5 0.5 8 Tartaric acid o59 Zinc chloride 0.510 Talc
211, coupler 630
1.5 (manufactured by Antriuse, USA) 12 Diazo 75 25 (manufactured by Antriyouth, USA) 13. Dosidel stearate 1 The above coating liquid was applied to a 125μm polyester film using an applicator, and after drying, a 9μm thick photosensitive film was applied. A photosensitive scribe material having a transparent scribe layer was obtained.

As a result of performing the same treatment as in Example 1, similar results were obtained.

[Effects of the Invention] As is clear from the above examples, according to the photosensitive scribe material of the present invention, the scribe layer also has photosensitivity, which eliminates a series of complicated procedures when correcting maps. The work can be significantly reduced. In addition, the photosensitive scribing material of the present invention has sufficient scribing performance and see-through properties, so it is easy to scribe over a document, and it is possible to perform scribing accurately. .

Agent Patent Attorney Moritani - Yu

Claims (1)

[Scope of Claims] 1. A photosensitive scribe material, characterized in that a photosensitive scribe layer having photosensitive and scribing properties is provided on a transparent support. 2. The photosensitive scribe material according to claim 1, wherein the photosensitive scribe layer contains an organic polymer substance, a hard resin, a filler, a diazonium salt, and a coupler.