NO774516L - Vann-fremkallbar litografisk trykkeplate - Google Patents

Vann-fremkallbar litografisk trykkeplate

Info

Publication number: NO774516L
Authority: NO; Norway
Prior art keywords: water; printing plate; resin; group; approx
Prior art date: 1977-05-19

Application number

NO77774516A

Other languages

English (en)

Norwegian (no)

Inventor

Eugene Golda

Alan Leonard Wilkes

Simon Long Chu

Original Assignee

Polychrome Corp

Priority date (The priority date 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 date listed.)

1977-05-19

Filing date

1977-12-30

Publication date

1978-11-21

1977-12-30 Application filed by Polychrome Corp filed Critical Polychrome Corp

1978-11-21 Publication of NO774516L publication Critical patent/NO774516L/no

Links

238000007639 printing Methods 0.000 title claims description 40
229920005989 resin Polymers 0.000 claims description 40
239000011347 resin Substances 0.000 claims description 40
239000000203 mixture Substances 0.000 claims description 37
239000000758 substrate Substances 0.000 claims description 30
239000011248 coating agent Substances 0.000 claims description 27
238000000576 coating method Methods 0.000 claims description 27
239000003504 photosensitizing agent Substances 0.000 claims description 24
238000000034 method Methods 0.000 claims description 18
239000010410 layer Substances 0.000 claims description 13
229910052782 aluminium Inorganic materials 0.000 claims description 12
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 12
239000000126 substance Substances 0.000 claims description 11
-1 alkali metal salts Chemical class 0.000 claims description 10
229910052751 metal Inorganic materials 0.000 claims description 10
239000002184 metal Substances 0.000 claims description 10
230000005855 radiation Effects 0.000 claims description 8
239000002253 acid Substances 0.000 claims description 6
239000003822 epoxy resin Substances 0.000 claims description 6
229920000647 polyepoxide Polymers 0.000 claims description 6
150000001875 compounds Chemical class 0.000 claims description 5
239000004814 polyurethane Substances 0.000 claims description 5
229920002451 polyvinyl alcohol Polymers 0.000 claims description 5
235000019422 polyvinyl alcohol Nutrition 0.000 claims description 5
BMNGOGRNWBJJKB-UHFFFAOYSA-N 1-azidopyrene Chemical class C1=C2C(N=[N+]=[N-])=CC=C(C=C3)C2=C2C3=CC=CC2=C1 BMNGOGRNWBJJKB-UHFFFAOYSA-N 0.000 claims description 4
229920002635 polyurethane Polymers 0.000 claims description 4
229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 4
239000001267 polyvinylpyrrolidone Substances 0.000 claims description 4
235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 4
229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 3
229920002125 Sokalan® Polymers 0.000 claims description 3
150000007513 acids Chemical class 0.000 claims description 3
239000003513 alkali Substances 0.000 claims description 3
229910052783 alkali metal Inorganic materials 0.000 claims description 3
229910052910 alkali metal silicate Inorganic materials 0.000 claims description 3
229920001577 copolymer Polymers 0.000 claims description 3
150000002222 fluorine compounds Chemical class 0.000 claims description 3
239000011229 interlayer Substances 0.000 claims description 3
150000002739 metals Chemical class 0.000 claims description 3
XNGIFLGASWRNHJ-UHFFFAOYSA-M phthalate(1-) Chemical compound OC(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-M 0.000 claims description 3
229920002401 polyacrylamide Polymers 0.000 claims description 3
229920000728 polyester Polymers 0.000 claims description 3
229920006324 polyoxymethylene Polymers 0.000 claims description 3
RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 3
235000012239 silicon dioxide Nutrition 0.000 claims description 3
229920002554 vinyl polymer Polymers 0.000 claims description 3
OMQSJNWFFJOIMO-UHFFFAOYSA-J zirconium tetrafluoride Chemical class F[Zr](F)(F)F OMQSJNWFFJOIMO-UHFFFAOYSA-J 0.000 claims description 3
125000003118 aryl group Chemical group 0.000 claims description 2
LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 claims description 2
229920001206 natural gum Polymers 0.000 claims description 2
ZTQSAGDEMFDKMZ-UHFFFAOYSA-N Butyraldehyde Chemical compound CCCC=O ZTQSAGDEMFDKMZ-UHFFFAOYSA-N 0.000 claims 3
JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims 2
125000004063 butyryl group Chemical group O=C([*])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims 2
239000004584 polyacrylic acid Substances 0.000 claims 2
244000043261 Hevea brasiliensis Species 0.000 claims 1
150000001299 aldehydes Chemical class 0.000 claims 1
239000004411 aluminium Substances 0.000 claims 1
239000006260 foam Substances 0.000 claims 1
229920003052 natural elastomer Polymers 0.000 claims 1
229920001194 natural rubber Polymers 0.000 claims 1
229920003051 synthetic elastomer Polymers 0.000 claims 1
239000005061 synthetic rubber Substances 0.000 claims 1
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
239000008399 tap water Substances 0.000 description 9
235000020679 tap water Nutrition 0.000 description 9
238000004519 manufacturing process Methods 0.000 description 7
YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
239000000243 solution Substances 0.000 description 5
239000002904 solvent Substances 0.000 description 5
VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
239000002966 varnish Substances 0.000 description 4
KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
239000004115 Sodium Silicate Substances 0.000 description 3
238000007743 anodising Methods 0.000 description 3
239000003795 chemical substances by application Substances 0.000 description 3
NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 3
229910052911 sodium silicate Inorganic materials 0.000 description 3
XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 2
MHOFGBJTSNWTDT-UHFFFAOYSA-M 2-[n-ethyl-4-[(6-methoxy-3-methyl-1,3-benzothiazol-3-ium-2-yl)diazenyl]anilino]ethanol;methyl sulfate Chemical compound COS([O-])(=O)=O.C1=CC(N(CCO)CC)=CC=C1N=NC1=[N+](C)C2=CC=C(OC)C=C2S1 MHOFGBJTSNWTDT-UHFFFAOYSA-M 0.000 description 2
239000004593 Epoxy Substances 0.000 description 2
229920000663 Hydroxyethyl cellulose Polymers 0.000 description 2
239000004354 Hydroxyethyl cellulose Substances 0.000 description 2
NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
239000004372 Polyvinyl alcohol Substances 0.000 description 2
239000007864 aqueous solution Substances 0.000 description 2
239000001045 blue dye Substances 0.000 description 2
150000008049 diazo compounds Chemical class 0.000 description 2
229920001971 elastomer Polymers 0.000 description 2
235000019447 hydroxyethyl cellulose Nutrition 0.000 description 2
STZCRXQWRGQSJD-GEEYTBSJSA-M methyl orange Chemical compound [Na+].C1=CC(N(C)C)=CC=C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-GEEYTBSJSA-M 0.000 description 2
229940012189 methyl orange Drugs 0.000 description 2
238000005201 scrubbing Methods 0.000 description 2
238000010561 standard procedure Methods 0.000 description 2
229920003169 water-soluble polymer Polymers 0.000 description 2
AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 1
LYUXQQGPJXZWPV-UHFFFAOYSA-N 1,6-diazidopyrene Chemical compound C1=C2C(N=[N+]=[N-])=CC=C(C=C3)C2=C2C3=C(N=[N+]=[N-])C=CC2=C1 LYUXQQGPJXZWPV-UHFFFAOYSA-N 0.000 description 1
239000004375 Dextrin Substances 0.000 description 1
229920001353 Dextrin Polymers 0.000 description 1
229920000084 Gum arabic Polymers 0.000 description 1
241000978776 Senegalia senegal Species 0.000 description 1
229920002472 Starch Polymers 0.000 description 1
101150099457 Tppp gene Proteins 0.000 description 1
239000000205 acacia gum Substances 0.000 description 1
235000010489 acacia gum Nutrition 0.000 description 1
239000000956 alloy Substances 0.000 description 1
229910045601 alloy Inorganic materials 0.000 description 1
229910000147 aluminium phosphate Inorganic materials 0.000 description 1
239000002585 base Substances 0.000 description 1
239000013043 chemical agent Substances 0.000 description 1
239000007795 chemical reaction product Substances 0.000 description 1
KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
235000019425 dextrin Nutrition 0.000 description 1
125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
BJZIJOLEWHWTJO-UHFFFAOYSA-H dipotassium;hexafluorozirconium(2-) Chemical compound [F-].[F-].[F-].[F-].[F-].[F-].[K+].[K+].[Zr+4] BJZIJOLEWHWTJO-UHFFFAOYSA-H 0.000 description 1
238000004090 dissolution Methods 0.000 description 1
238000000866 electrolytic etching Methods 0.000 description 1
238000005530 etching Methods 0.000 description 1
AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
FXHGMKSSBGDXIY-UHFFFAOYSA-N heptanal Chemical compound CCCCCCC=O FXHGMKSSBGDXIY-UHFFFAOYSA-N 0.000 description 1
239000004615 ingredient Substances 0.000 description 1
230000007774 longterm Effects 0.000 description 1
239000001048 orange dye Substances 0.000 description 1
HGBOYTHUEUWSSQ-UHFFFAOYSA-N pentanal Chemical compound CCCCC=O HGBOYTHUEUWSSQ-UHFFFAOYSA-N 0.000 description 1
230000035699 permeability Effects 0.000 description 1
239000002952 polymeric resin Substances 0.000 description 1
229920000915 polyvinyl chloride Polymers 0.000 description 1
239000004800 polyvinyl chloride Substances 0.000 description 1
238000002203 pretreatment Methods 0.000 description 1
239000000047 product Substances 0.000 description 1
239000008262 pumice Substances 0.000 description 1
239000005871 repellent Substances 0.000 description 1
235000019698 starch Nutrition 0.000 description 1
239000008107 starch Substances 0.000 description 1
229920003002 synthetic resin Polymers 0.000 description 1
GPRLSGONYQIRFK-MNYXATJNSA-N triton Chemical compound [3H+] GPRLSGONYQIRFK-MNYXATJNSA-N 0.000 description 1
150000003673 urethanes Chemical class 0.000 description 1
238000005406 washing Methods 0.000 description 1
239000002699 waste material Substances 0.000 description 1
238000009736 wetting Methods 0.000 description 1
239000000080 wetting agent Substances 0.000 description 1

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C1/00—Forme preparation
- B41C1/10—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme
- B41C1/1008—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme by removal or destruction of lithographic material on the lithographic support, e.g. by laser or spark ablation; by the use of materials rendered soluble or insoluble by heat exposure, e.g. by heat produced from a light to heat transforming system; by on-the-press exposure or on-the-press development, e.g. by the fountain of photolithographic materials
- B41C1/1016—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme by removal or destruction of lithographic material on the lithographic support, e.g. by laser or spark ablation; by the use of materials rendered soluble or insoluble by heat exposure, e.g. by heat produced from a light to heat transforming system; by on-the-press exposure or on-the-press development, e.g. by the fountain of photolithographic materials characterised by structural details, e.g. protective layers, backcoat layers or several imaging layers
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N3/00—Preparing for use and conserving printing surfaces
- B41N3/03—Chemical or electrical pretreatment
- B41N3/036—Chemical or electrical pretreatment characterised by the presence of a polymeric hydrophilic coating
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C2201/00—Location, type or constituents of the non-imaging layers in lithographic printing formes
- B41C2201/04—Intermediate layers
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C2210/00—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation
- B41C2210/02—Positive working, i.e. the exposed (imaged) areas are removed
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C2210/00—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation
- B41C2210/04—Negative working, i.e. the non-exposed (non-imaged) areas are removed
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C2210/00—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation
- B41C2210/08—Developable by water or the fountain solution
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C2210/00—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation
- B41C2210/14—Multiple imaging layers
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C2210/00—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation
- B41C2210/24—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation characterised by a macromolecular compound or binder obtained by reactions involving carbon-to-carbon unsaturated bonds, e.g. acrylics, vinyl polymers
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C2210/00—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation
- B41C2210/26—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation characterised by a macromolecular compound or binder obtained by reactions not involving carbon-to-carbon unsaturated bonds
- B41C2210/266—Polyurethanes; Polyureas

Landscapes

Physics & Mathematics (AREA)
Optics & Photonics (AREA)
Thermal Sciences (AREA)
Engineering & Computer Science (AREA)
Manufacturing & Machinery (AREA)
Photosensitive Polymer And Photoresist Processing (AREA)
Printing Plates And Materials Therefor (AREA)
Paper (AREA)

NO77774516A 1977-05-19 1977-12-30 Vann-fremkallbar litografisk trykkeplate NO774516L (no)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US79828277A	1977-05-19	1977-05-19

Publications (1)

Publication Number	Publication Date
NO774516L true NO774516L (no)	1978-11-21

Family

ID=25172987

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NO77774516A NO774516L (no)	1977-05-19	1977-12-30	Vann-fremkallbar litografisk trykkeplate

Country Status (9)

Country	Link
JP (1)	JPS53145707A (da)
AU (1)	AU3602578A (da)
DE (1)	DE2821776A1 (da)
DK (1)	DK565077A (da)
FR (1)	FR2391488A1 (da)
GB (1)	GB1588620A (da)
NL (1)	NL7801624A (da)
NO (1)	NO774516L (da)
SE (1)	SE7805736L (da)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4447512A (en) *	1982-01-25	1984-05-08	Polychrome Corporation	Method for making a negative working lithographic printing plate
JP2778116B2 (ja) *	1989-06-07	1998-07-23	大日本インキ化学工業株式会社	感光性組成物
US5167489A (en) *	1991-04-15	1992-12-01	General Electric Company	Forward swept rotor blade
WO1993006528A1 (en) *	1991-09-13	1993-04-01	Sun Chemical Corporation	Positive-working coating compositions

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2681310A (en) *	1949-10-25	1954-06-15	Harris Seybold Co	Treating aluminum surfaces
BE540601A (da) *	1950-12-06
US3003413A (en) *	1957-03-12	1961-10-10	Eastman Kodak Co	Film printing plate and method of manufacture
DE1622462A1 (da) *	1960-10-11

1977
- 1977-12-19 DK DK565077A patent/DK565077A/da not_active Application Discontinuation
- 1977-12-30 NO NO77774516A patent/NO774516L/no unknown
1978
- 1978-02-13 NL NL7801624A patent/NL7801624A/xx not_active Application Discontinuation
- 1978-04-13 JP JP4376378A patent/JPS53145707A/ja active Pending
- 1978-05-11 AU AU36025/78A patent/AU3602578A/en active Pending
- 1978-05-12 GB GB19117/78A patent/GB1588620A/en not_active Expired
- 1978-05-18 SE SE7805736A patent/SE7805736L/xx unknown
- 1978-05-18 DE DE19782821776 patent/DE2821776A1/de not_active Withdrawn
- 1978-05-19 FR FR7814930A patent/FR2391488A1/fr active Pending

Also Published As

Publication number	Publication date
AU3602578A (en)	1979-11-15
JPS53145707A (en)	1978-12-19
GB1588620A (en)	1981-04-29
FR2391488A1 (fr)	1978-12-15
SE7805736L (sv)	1978-11-20
DE2821776A1 (de)	1978-11-30
DK565077A (da)	1978-11-20
NL7801624A (nl)	1978-11-21

Publication	Publication Date	Title
US4104072A (en)	1978-08-01	Water developable lithographic printing plate having dual photosensitive layering
US3594289A (en)	1971-07-20	Process for preparing a presensitized photolithographic printing plate
US3385703A (en)	1968-05-28	Recording process
CA1325402C (en)	1993-12-21	Bilayered anodized aluminum support, method for the preparation thereof and lithographic printing plate containing same
US3836437A (en)	1974-09-17	Surface treatment for aluminum plates
EP0132379B1 (en)	1989-02-15	Planographic printing plate
NO774516L (no)	1978-11-21	Vann-fremkallbar litografisk trykkeplate
US3715210A (en)	1973-02-06	Lithographic printing plates
CA1206365A (en)	1986-06-24	Developer for light-sensitive lithographic printing plate precursor
FR2641383A1 (fr)	1990-07-06	Procede pour l'obtention des masques pour lithographie aux rayons x
US6451491B1 (en)	2002-09-17	Aqueous developable negative acting photosensitive composition having improved image contrast
US4467028A (en)	1984-08-21	Acid interlayered planographic printing plate
JPH0428292B2 (da)	1992-05-14
US4326020A (en)	1982-04-20	Method of making positive acting diazo lithographic printing plate
GB2098627A (en)	1982-11-24	Anodized supports for production of lithographic printing plates
US3634086A (en)	1972-01-11	Solvent development of light-sensitive diazo layers
US4425420A (en)	1984-01-10	Production of a planographic printing plate through the silver complex diffusion transfer process
US3933499A (en)	1976-01-20	Printing plate comprising diazo-borofluoride and diazo resin layers
US3899332A (en)	1975-08-12	Printing plate and method of making the same
JPS5814797A (ja)	1983-01-27	平版印刷版用アルミニウム支持体の製造方法
GB2081916A (en)	1982-02-24	Method of producing a positive acting photographic element
JPS59214651A (ja)	1984-12-04	感光性平版印刷版を用いた製版方法
GB1600213A (en)	1981-10-14	Process for preparing lithographic plates for use in printing
JP2985348B2 (ja)	1999-11-29	ネガ型平版印刷版
US5081003A (en)	1992-01-14	Developer compositions for newspaper plates