GB830623A - A planographic printing process using greasy or fatty ink - Google Patents

A planographic printing process using greasy or fatty ink

Info

Publication number
GB830623A
GB830623A GB1209157A GB1209157A GB830623A GB 830623 A GB830623 A GB 830623A GB 1209157 A GB1209157 A GB 1209157A GB 1209157 A GB1209157 A GB 1209157A GB 830623 A GB830623 A GB 830623A
Authority
GB
United Kingdom
Prior art keywords
ferricyanide
ink
treated
plate
image
Prior art date
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.)
Expired
Application number
GB1209157A
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.)
Agfa Gevaert NV
Original Assignee
Agfa AG
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.)
Filing date
Publication date
Application filed by Agfa AG filed Critical Agfa AG
Publication of GB830623A publication Critical patent/GB830623A/en
Expired legal-status Critical Current

Links

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
    • G03F7/14—Production of collotype printing forms
    • 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
    • G03F7/06—Silver salts
    • G03F7/063—Additives or means to improve the lithographic properties; Processing solutions characterised by such additives; Treatment after development or transfer, e.g. finishing, washing; Correction or deletion fluids

Abstract

830,623. Planographic printing processes. AGFA A.G. April 12, 1957 [April 18, 1956], No. 12091/57. Class 98(2) Images are produced by. the silversalt diffusion process in an ink-repellent layer that is chemically inert with respect to ferricyanides and ferrocyanides and are treated with an aqueous solution of a ferricyanide in the presence of a soluble metal salt, the metal ion of which is capable of forming a water-insoluble ferrocyanide or ferricyanide, which solution may also contain a complex former to prevent immediate precipitation of the metal ferricyanide, and such treated images are inked up for planographic printing. In Example 1 a silver image as from a line or half-tone original so produced on an anodically treated aluminium plate which may have been dipped beforehand into an aqueous colloidal silver sulphide nuclei solution is introduced after rinsing into a solution containing potassium ferricyanide, cobaltous nitrate, citric acid and sodium citrate, to give the image a violet appearance due to entrained cobalt ferricyanide, and the plate is again rinsed, dried, treated with aqueous ethanolic stearylamine containing sodium carbonate as surface active agent, and after evaporation of the ethanol the plate is rubbed with greasy ink, the latter is dried with talcum and the ink cleared off image-free areas with 4% phosphoric acid, when the plate may be gummed for protection if not to be used immediately for printing. The other six examples are generally similar, differing chiefly by (2) producing the silver image on surfacesaponified acetyl cellulose foil; (3) and (4) using nickelous and uranyl nitrates respectively instead of the cobaltous nitrate of Example 1; (5) producing the silver image on a nuclei containing gelatine layer of a paper foil; (6) using oxalic anions instead of the citric Example 1; and (7) including barium sulphate in the gelatine layer of Example 5 and zinc sulphate instead of cobaltous nitrate. Other soluble ferricyanides and other metal salts for treating the silver image formed in the ink-repellent layer are described.
GB1209157A 1956-04-18 1957-04-12 A planographic printing process using greasy or fatty ink Expired GB830623A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA24726A DE1011280B (en) 1956-04-18 1956-04-18 Process for the production of planographic printing plates by photographic means

Publications (1)

Publication Number Publication Date
GB830623A true GB830623A (en) 1960-03-16

Family

ID=6925736

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1209157A Expired GB830623A (en) 1956-04-18 1957-04-12 A planographic printing process using greasy or fatty ink

Country Status (4)

Country Link
BE (1) BE556753A (en)
DE (1) DE1011280B (en)
FR (1) FR1174256A (en)
GB (1) GB830623A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3552315A (en) * 1966-02-14 1971-01-05 Dick Co Ab Offset master for imaging by diffusion transfer with nucleating agent, cadium salt and a salt of zirconium, thorium or titanium
EP0059008A1 (en) * 1981-02-25 1982-09-01 Agfa-Gevaert N.V. Production of a planographic printing plate through the silver complex diffusion transfer process

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE567153A (en) * 1957-04-26
BE572336A (en) * 1957-10-25
BE582160A (en) * 1958-08-29
US3257941A (en) * 1960-04-04 1966-06-28 Anken Chemical And Film Corp Method and means of making planographic printing plates
GB1241661A (en) * 1967-06-19 1971-08-04 Agfa Gevaert Method for the preparation of printing plates

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE649304C (en) * 1935-11-28 1937-08-23 Graphia Fa Process for the production of colorable diffusion or stain images, whereby undeveloped, light-sensitive layers containing metal salts which have not been developed under the copier are brought into contact with gelatinous layers containing ferrous salts
DE852338C (en) * 1948-10-16 1952-10-13 Kalle & Co Ag Multiplication process for flat and offset printing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3552315A (en) * 1966-02-14 1971-01-05 Dick Co Ab Offset master for imaging by diffusion transfer with nucleating agent, cadium salt and a salt of zirconium, thorium or titanium
US3552316A (en) * 1966-02-14 1971-01-05 Dick Co Ab Dtr offset master and composition for preparation of same
EP0059008A1 (en) * 1981-02-25 1982-09-01 Agfa-Gevaert N.V. Production of a planographic printing plate through the silver complex diffusion transfer process

Also Published As

Publication number Publication date
DE1011280B (en) 1957-06-27
BE556753A (en)
FR1174256A (en) 1959-03-09

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