GB2205843A - Photosensitive composition - Google Patents

Photosensitive composition Download PDF

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Publication number
GB2205843A
GB2205843A GB08803599A GB8803599A GB2205843A GB 2205843 A GB2205843 A GB 2205843A GB 08803599 A GB08803599 A GB 08803599A GB 8803599 A GB8803599 A GB 8803599A GB 2205843 A GB2205843 A GB 2205843A
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GB
United Kingdom
Prior art keywords
water
soluble
photosensitive composition
composition according
photosensitive
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB08803599A
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GB8803599D0 (en
GB2205843B (en
Inventor
Norio Yabe
Kuniaki Monden
Hisashi Mino
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Kokusaku Pulp Co Ltd
Original Assignee
Sanyo Kokusaku Pulp Co Ltd
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Publication of GB8803599D0 publication Critical patent/GB8803599D0/en
Publication of GB2205843A publication Critical patent/GB2205843A/en
Application granted granted Critical
Publication of GB2205843B publication Critical patent/GB2205843B/en
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Expired - Fee Related legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004—Photosensitive materials
    • G03F7/008—Azides
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004—Photosensitive materials
    • G03F7/0045—Photosensitive materials with organic non-macromolecular light-sensitive compounds not otherwise provided for, e.g. dissolution inhibitors
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004—Photosensitive materials
    • G03F7/016—Diazonium salts or compounds
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004—Photosensitive materials
    • G03F7/038—Macromolecular compounds which are rendered insoluble or differentially wettable

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Description

2 2 0,'--,j 8 4 3 TITLE: PHOTOSENSITIVE COMPOSITION The present invention
relates to a positive-type photosensitive composition. More particularly, the invention relates to positive-type photosensitive compositions used for making positive-type image forming materials by coating onto a support and has utility mainly for printing plate-making materials, draft-duplicating materials and the like.
Conventional photosensitive compositions used for positive type image-forming materials, include:
(1) Compositions comprising an o-quinonediazide compound.
This is exemplified by a composition consisting of o-quinonediazide compound and an alkali-soluble resin such as Novolak resin wherein the ability of the o-quinonediazide to change to an alkali-soluble subs-Lance upon irradiation of light is utilized (see Japanese Unexamined Patent Publications No. Sho 50- 125806 and Sho 61-5251,).
(2) Compositions comprising a photosensitive diazonium salt and a water-soluble resin. - This is exemplified by a composition consisting of a photosensitive diazonium salt and a water-soluble resin such as poly(vinyl alcohol) or diacetone acrylamide-acrylamide copolymer wherein the ability of the photosensitive diazonium salt and water-soluble resin to give rise to a coupling reaction under alkaline conditions to become water-insoluble is utilized (see Japanese Unexamined Patent Publications V.
2 No. Sho 56-101141, Sho 56-101144, Sho 57-72140 and Sho 57-191632).
However, these conventional photosensitive compositions have various problems. More specifically, Since both (1) and (2) use an alkali solution for development, there are problems of safety during development and also a pollution problem in the treatment of the spent water. Development treatment with ammonia vapor is also possible in (2), but the strong smell of ammonia causes a deterioration in the operation environment.
There is residual colour of o-quinonediazide or It decomp9sition product thereof in the images formed by (1) and there is a peculiar coloration due to the coupling reaction in (2). For these reasons, it is difficult to obtain specific coloured images in both (1) and (2), even using an added colouring agent.
The purpose of the present invention -is to provide a positive-type photosensitive composition for making a positive-type image-forming material wherein development is possible with water, or optionally warm water and wherein the problems associated with conventional compositions previously described, do not occur.
As a result of diligent studies to find a novel positive type photosensitive composition developable 3 with water or warm water, we have found that a positive-type photosensitive composition can be obtained by using a water-soluble photocrosslinking agent (for example, one shown in Japanese Patent Publication No. Sho 44-28725) which has previously been used for negative-type photosensitive compositions.
Thus, we have found that positive images are obtained by subjecting a photosensitive layer comprising a composition consisting of a water-soluble photocrosslinking agent, a water-soluble resin and a synthetic resin emulsion coated onto a support to exposure to light through a positive manuscript, by immersing into water and by rubbing with a sponge.
Moreover, in the images thus obtained, tinting due to photosensitive component and coloration accompanied with image-forming reaction were not evident. The mechanism of this phenomenon is considered as follows:
o Exposed areas By exposure to actinic rays, the water-soluble photocrossing agent and the water-soluble resin in the photo-sensitive layer are crosslinked photochemically.
And, when immersing, this photocrosslinking component swells easily to soften the photosensitive layer of this portion. Moreover, it lowers the adhesion to the support. Consequently, those portions are removed easily from the support by rubbing with a sponge or the like.
o Nonexposed areas When immersed in water, the major portion of the water-soluble photocrosslinking agent and water-soluble 4 resin in the photo-sensitive layer is dissolved out, b- the photosensitive layer exhibits no changes such ut.
as swelling, softening, etc. and its adhesion to the support also does not chang. Consequently, it. is not removed from the support even if rubbed. Moreover, since the major portion of. the water-soluble photocrosslinking agent in the photosensitive layer is dissolved out, the remaining photosensitive layer is colorless.
The present invention relates to positive type photosensitive compositions utilizing the phenomenon aforementioned.
Thus, the present invention comprises a positive type photosensitive composition characterized in that it is developable with water, optionally or warmed, alone and comprises a water-soluble photocrosslinking agent, a water-soluble resin and a synthetic resin emulsion and, if necessary, a colouring agent.
In following, the invention will be explained in more detail.
As the water-soluble photocrosslinking agents usable for the photosensitive compositions of the invention, water-soluble azide compounds, diazonium salts, tetrazonium. salts and other known organic photosensitive substances can be used. Mentioning several kinds thereof here, they are as follows:
Water-soluble azide compounds:
Sodium 4,41-diazidestilbene-2,2'-disulfonate; Sodium 4-azide-4-azidebenzalacetophenone-2- sulfonate; Sodium 4,41-diazidestilbene-cL-carboxylate; Sodium di-(4-azide-2'-hydroxybenzal) acetone-2-sulfonae; Sodium 4-azidebenzalaceto-phenone-2 sulfonate.
Diazo resin:
Condensation product of p-diazodiphenylamine with formaldehyde.
Tetrazonium salts:
Double salt of diphenyl-4,41-bisdiazonium chloride and zinc chloride; Double salt of 3,31-dimethylidiphenyl-4,4' bisdiazonium chloride and zinc chloride Double salt of 3,31-dimethoxydimethyl-4,4' bisdiazonium chloride and zinc chloride Double salt of dipheny lamine-4,V bisdiazonium chloride and zinc chloride 6 Double salt of diphenylmethane-4,41 bisdiazonium chloride and zinc chloride As the water-soluble resins utilizable for the photosensitive compositions of the invention, suitable substances include poly acrylamide, poly(vinyl pyrrolidone), grafted polymerizates of poly(vinyl alcohol) with vinyl monomers, water-soluble poly(vinyl butyral), glue, casein, gelatin, arabic gum, egg albumin, gums, alginic acids, polyethylene oxide, polyacrylic acid and salts thereof, polymethacrylic acid and salts thereof or mixtures thereof, further mixtures of these with poly(vinyl alcohol) and cellulose derivatives such as carboxymethy1cellulose and hydroxyethyl-cellulose.
As the synthetic resin emulsions to be used for the photo-sensitive compositions of the invention, suitable substances include polyacrylic acid ester, ethylene-vinyl acetate copolymer, poly (vinylidene chloride), poly(vinyl chloride) and copolymers or mixtures of these.
The photosensitive compositions of the invention, may also include conventional additives such as water dispersible colouring pigments, water-soluble dyes, leveling agents, stabilizers, matting agents, etc.
The photosensitive composition of the invention comprises the water-soluble photocrosslinking agent, water-soluble resin and synthetic resin emulsion as described above, wherein the formulation ratio by 7 weight of water-soluble resin to synthetic resin emulsion is preferably 1:99 to 80:20, more preferably 5:95 to 40:60. When the amount of water-soluble resin is too great, the water resistance of the images is lowered resulting in the fading of images at the time of development, and, when the amount of synthetic resin emulsion is too great, the developability is lowered.
The formulation weight ratio of the sum of water soluble resin and synthetic resin emulsion to water soluble photocrosslinking agent is preferably 98:2 to 70:30, more preferably 96:4 to 80:20. When the amount of water-soluble photocrosslinking agent is less than this level, the sensibility and the quality of images are lowered remarkably, and inversely, when it is above this range, the quality of images is poor. When adding the optional colouring ageAts, the amounts are preferably not more than 20 % and not more than 10% in the cases of colouring pigments and water-soluble dyes, respectively, to the sum in solids of water-soluble photocrosslinking agent, water-soluble resin and synthetic resin emulsion. The components aforementioned constituting the photosensitive composition are dissolved or dispersed for the preparation using water, water/alcohol mixtures or the like.
The photosensitive composition prepared in this way is coated onto the support to make a positive-type image-forming material. Suitable supports include plastic films such as poly(ethylene terephthalate), polypropylene, polyetylene, poly(vinyl chloride), polystyrene, polycarbonate, triacetate, etc., glass 8 plate, paper laminated with polyethylene, polypropylene or the like on both sides to make water-resistant, and the like. It is also possible to use plastic films provided the draft-ability such as sand mat film made by the sand-blasting method to give a good writing quality with pencil, Japanese ink, ball pen, etc. on one side or both sides, etching mat film etched with alkali, and the like, and further opalized films milled with white pigments a nd the like can be used. The photosensitive layer may be coated directly onto said support, but it is desirable to provide the corona.
treatment, coating of primer or adhesive processing combined these beforehand in order to improve the adhesion. As the primers, for example, phenol resin, polyester resin, urethane resin, vinylidene chloride vinyl acetate copolymer, vinylidene chloride acrylonitrile copolymer, etc. and mixtures of these are used. The thickness of the coating on the support is preferably from 0.1 to 2.0,um.
The coating onto the support is performed by any suitable method such as rotary coating, roll coating, bar coating, brush coating, etc. The coating weight is selected so that the thickness of the coated film is about 1 to 5)um, preferably about 2 Alm after drying.
The thinner the thickness of the coated film, the better the resolution of immages. After coating, drying with hot air is usually conducted, but it may be done with air.
The positive type image-forming materials made up 9 using the photosensitive compositions of the invention are submitted to the formation of images through following processes.
(1) Exposure to light The manuscript is superimposed on the coated surface of the photosensitive composition of the image forming material, and, to this, actinic rays from various mercury arc lamps, carbon arc lamp, xenon lamp, metal halide lamp, UV fluorescent lamp, etc. are irradiated.
(2) Immersion into water or warm water The image-forming material exposed to light is immersed into water or warm water to swell the nonimage areas. The temperature of the water at this time is not particularly restricted, but, at high temperature, the swelling of the nonimage areas is faster and the time of immersion can be shortened. The temperature of the water is selected to be 5 to 50 'C, more preferably to 45 'C depending upon the particular components constituting the photosensitive composition. Immersion is continued until the nonimage areas swell sufficiently.
(3) Removal of nonimage areas and drying The photosensitive surface of the image-forming material immersed as above is rubbed with a sponge containing water to remove the nonimage areas. Then, drying is conducted.
The invention is further illustrated by the following Examples.
Example 1
Liquor (A) (photosensitive liquor) Diazo resin 0.6 parts by weight (Condensation product of p-diazodiphenyl- amine with formaldehyde) Polyacrylamide (10% solution) 1.8 parts by weight (DP 10,000, made by Nakarai Kagaku Co.) Primal B-15 (46 % emulsion) 15.7 parts by weight (Polyacrylic ester emulsion, made by Japan Acryl Chemical Co.) Carbon black dispersion 5.0 parts by weight Methanol 30.4 parts by weight Water 30.4 parts by weight A carbon black dispersion was obtained by dispersing for 3 hours on ink-mixing mill the following composition.
Carbon black 60 parts by weight.
Methorose 60SH 4000 10 parts by weight.
Hydroxypropylmethylcellulose, made by Shinetsu Chemical Co.) Nonionic surfactant 1 part by weight (Polyethyleneglycol alkylphenyl ether mixture) Water 229 parts by weight onto a side of poly(ethylene terephthalate) film with a thickness of 75 un was coated liquor (A) by using a rotary coating machine and drying was conducted for 90 seconds with warm air at 90 OC to make a photosensitive layer having a thickness of"2 pn. Then, the positive manuscript was contacted closely with the photosensitive layer and the exposure was made for 10 seconds from a distance of 1 m using super high12 - pressure mercury lamp with 2 KW. After immersed this into warm water of 15 OC for 60 seconds to swell the nonimage areas sufficiently, the photosensitive surface was rubbed with a water-containing sponge to remove the nonimage areas, whereby black and sharp relief positive images with an optical density of 1.20 were obtained.
Example 2
Liquor (B) (photosensitive liquor) Sodium 4,4'-diazidestilbene-2,21 disulfonate 0.7 parts by weight PVP K-90 1.0 part by weight.
(Poly(vinyl-pyrrolidone), made by General Aniline & Film Co.) Sumielite 1010 (50 % emulsion) 10.7 parts by weight (Ethylene-vinyl chloride copolymer emulsion, made by Sumitomo chemical Co.).
Methanol 17.5 parts by weight Water 70.1 parts by weight Following the procedure of Example 1, liquor (B) was coated onto a side of poly(ethylene terephthalate) film with a thickness of 75 = and dried to make a photosensitive layer with a thickness of 2 pn. Then, exposure was made for 4 seconds from a distance of 1 m using super high-pressure mercury lamp with 2 KW.
After immersion into warm water at 40 OC for 10.seconds to allow the nonimage areas to swell sufficiently, the photosensitive layer was rubbed lightly with a water containing sponge under running water, whereby the non image areas exposed to light were removed and colorless transparent positive relief images were obtained.
Example 3
Liquor (C) (photosensitive liquor) Double salt of 3,31-dimethoxydiphenyl-4,4' bisdiazonium chloride and zinc chloride 1.5 parts by weight Denkasize pc-100 1.5 parts by weight (Vinyl alchohol-acrylamide copolymer, made by Denki Kagaku Kogyo K.K.) Vinybrane 240 (45% emulsion) 8.0 parts by weight (Vinyl chloride type emulsion, made by Nisshin Kagaku Kogyo K.K.) 14 - Carbon black dispersion 6.5 parts by weight Methanol 30.0 parts by weight Water 52.5 parts by weight Onto a side of poly(ethylene terephthalate) film with a thickness of 75 g'm was coated Liquor (C) using a rotary coating machine and drying was conducted for 60 seconds with warm air at 90 'C to make a photosensitive layer with a thickness of 1.5 gm. Then, the positive manuscript was closely contacted with the photo sensitive layer and exposure was made for 12 seconds from a distance of 1 m using a super high-pressure mercury lamp with 2 KW. After immersion into warm water of 15 OC for 60 seconds to swell the nonimage areas sufficiently, the photosensitive surface was rubbed with a water-containing sponge to remove the nonimage areas, whereby black and sharp relief positive images with an optical density of 0.85 were obtained.
Example 4
Liquor (D) (photosensitive liquor) Sodium 4,41-diazidestilbene-2,2'disulfonate 0.9 parts by weight PVP K-90 0.8 parts by weight Sumikaflex. 830 (50 % emulsion) 16.4 parts by weight (Vinyl acetate-ethylene-vinyl chloride copolymer emulsion, made by Sumitomo Chemical Co.) Carbon black dispersion 5.0 parts by weight Methanol 38.5 parts by weight Water 38.5 parts by weight onto a side of poly(ethylene terephthalate) film with a thickness of 75 = was coated liquor (D) using a rotary coating machine and drying was conducted for 60 seconds with warm air at 90 OC to make a photosensitive layer with a thickness of 1.5 jim. Then, the positive manuscript was closely contacted with the photo sensitive layer and the exposure was made for 12 seconds from a distance of 1 m using super high pressure mercury lamp with 2 KW. After immersion into warm water of 40 C for 30 seconds to swell the nonimage areas sufficiently, the photosensitive surface was rubbed with a water-containing sponge under running water to remove the nonimage areas, whereby black and sharp relief positive images with an optical density of 1.0 were obtained.
16

Claims (1)

  1. CLAIMS:
    (1) A positive-type photosensitive composition which is developable with water alone, optionally warmed and comprises a water-soluble photocrosslinking agent, a water-soluble resin and a synthetic resin emulsion.
    (2) A photosensitive composition according to claim 1, which also comprises a colouring.agent.
    (3) A photosensitive composition according to Claim 1 or 2, wherein the weight ratio of water-soluble resin to synthetic resin emulsion is within the range of 1:99 to 80:20.
    (4) A photosensitive composition according to Claim 3, wherein the weight ratio of water-soluble resin to synthetic resin emulsion is within the range of 5:95 to 40:60.
    (5) A photosensitive composition according to any of Claims 1 to 4, wherein the weight ratio of the sum of water-soluble resin and synthetic resin emulsion to water-soluble photocrosslinking agent is 98:2 to 70:30.
    (6) A photosensitive composition according to claim 5, wherein, the weight ratio of the sum of water soluble resin and synthetic resin emulsion to water soluble photocrosslinking agent is 96:4 to 80:20.
    (7) A photosensitive composition according to any one of Claim 1 to 6, wherein the water-soluble photocross linking agent is a water-soluble diazide compound, a diazo resin or a tetrazonium salt.
    Put,lisl,ed 1988 at The Patent Office. State Hcruse. 66 I High Holborn. London WC).R 4TP. Further c-:jies maybe obtained from The Patent Office, Sales Branch, St Mary Cray. Orpington. Kent BRE, 3RD Printed by Multiplex techniques ltd, St Mary Cray, Kent. Con. 1187.
GB8803599A 1987-06-15 1988-02-17 Photosensitive composition Expired - Fee Related GB2205843B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14872487A JPH0693118B2 (en) 1987-06-15 1987-06-15 Photosensitive sheet

Publications (3)

Publication Number Publication Date
GB8803599D0 GB8803599D0 (en) 1988-03-16
GB2205843A true GB2205843A (en) 1988-12-21
GB2205843B GB2205843B (en) 1991-12-11

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GB8803599A Expired - Fee Related GB2205843B (en) 1987-06-15 1988-02-17 Photosensitive composition

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JP (1) JPH0693118B2 (en)
DE (1) DE3800131C2 (en)
FR (1) FR2616558B1 (en)
GB (1) GB2205843B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2644907A1 (en) * 1988-01-12 1990-09-28 Sanyo Kokusaku Pulp Co IMAGE FORMATION METHOD
GB2263562A (en) * 1989-06-07 1993-07-28 Sanyo Kokusaku Pulp Co Method for positive type photosensitive films
GB2269385A (en) * 1992-07-14 1994-02-09 Coates Brothers Plc Coating compositions
EP0908784A1 (en) * 1997-10-08 1999-04-14 Agfa-Gevaert N.V. A method of making positive working printing plates from a light sensitive imaging element
US6165689A (en) * 1997-10-08 2000-12-26 Agfa-Gevaert, N.V. Method for making positive working printing plates from a light sensitive imaging element

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03288852A (en) * 1990-04-05 1991-12-19 Sanyo Kokusaku Pulp Co Ltd Photosensitive transfer sheet
JPH04274428A (en) * 1991-03-01 1992-09-30 Nippon Paint Co Ltd Photosensitive composition for offeset printing
JPH04369651A (en) * 1991-06-18 1992-12-22 Sanyo Kokusaku Pulp Co Ltd Multicolor image forming method

Citations (5)

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Publication number Priority date Publication date Assignee Title
GB1408466A (en) * 1972-02-16 1975-10-01 Quadrimetal Offset Le Photopolymerisable compositions
GB1517961A (en) * 1975-05-20 1978-07-19 Nippon Paint Co Ltd Photosensitive composition and process for preparing same
GB2108986A (en) * 1981-11-03 1983-05-25 Sericol Group Ltd Photopolymerisable composition for producing screen printing stencils
GB2109392A (en) * 1981-11-03 1983-06-02 Sericol Group Ltd Photopolymerisable materials for use in producing screen printing stencils
GB2155191A (en) * 1984-03-02 1985-09-18 Sericol Group Ltd Screen printing stencil compositions

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GB711702A (en) * 1951-04-16 1954-07-07 Kodak Ltd Improvements in photographic methods of preparing relief matrices and diazo containing light sensitive materials therefor
JPS4910841B1 (en) * 1965-12-18 1974-03-13
BE691485A (en) * 1965-12-20 1967-05-29
DE3364925D1 (en) * 1982-06-03 1986-09-04 Hoechst Co American Photosensitive composition developable with water, and photosensitive copying material produced therefrom
JPS60147729A (en) * 1984-01-12 1985-08-03 Toshiba Corp Photoresist composition
US4540649A (en) * 1984-09-12 1985-09-10 Napp Systems (Usa) Inc. Water developable photopolymerizable composition and printing plate element containing same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1408466A (en) * 1972-02-16 1975-10-01 Quadrimetal Offset Le Photopolymerisable compositions
GB1517961A (en) * 1975-05-20 1978-07-19 Nippon Paint Co Ltd Photosensitive composition and process for preparing same
GB2108986A (en) * 1981-11-03 1983-05-25 Sericol Group Ltd Photopolymerisable composition for producing screen printing stencils
GB2109392A (en) * 1981-11-03 1983-06-02 Sericol Group Ltd Photopolymerisable materials for use in producing screen printing stencils
GB2155191A (en) * 1984-03-02 1985-09-18 Sericol Group Ltd Screen printing stencil compositions

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2644907A1 (en) * 1988-01-12 1990-09-28 Sanyo Kokusaku Pulp Co IMAGE FORMATION METHOD
GB2263562A (en) * 1989-06-07 1993-07-28 Sanyo Kokusaku Pulp Co Method for positive type photosensitive films
GB2269385A (en) * 1992-07-14 1994-02-09 Coates Brothers Plc Coating compositions
EP0908784A1 (en) * 1997-10-08 1999-04-14 Agfa-Gevaert N.V. A method of making positive working printing plates from a light sensitive imaging element
US6165689A (en) * 1997-10-08 2000-12-26 Agfa-Gevaert, N.V. Method for making positive working printing plates from a light sensitive imaging element

Also Published As

Publication number Publication date
JPS63311349A (en) 1988-12-20
FR2616558A1 (en) 1988-12-16
GB8803599D0 (en) 1988-03-16
GB2205843B (en) 1991-12-11
JPH0693118B2 (en) 1994-11-16
DE3800131A1 (en) 1988-12-29
FR2616558B1 (en) 1994-05-27
DE3800131C2 (en) 1994-07-28

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732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19970217