GB712606A - Improvements in or relating to photolithographic diazotype printing materials and processes - Google Patents

Improvements in or relating to photolithographic diazotype printing materials and processes

Info

Publication number
GB712606A
GB712606A GB1208349A GB1208349A GB712606A GB 712606 A GB712606 A GB 712606A GB 1208349 A GB1208349 A GB 1208349A GB 1208349 A GB1208349 A GB 1208349A GB 712606 A GB712606 A GB 712606A
Authority
GB
United Kingdom
Prior art keywords
diazo
water
original
amino
compound
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
GB1208349A
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.)
Kalle GmbH and Co KG
Original Assignee
Kalle GmbH and Co KG
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 Kalle GmbH and Co KG filed Critical Kalle GmbH and Co KG
Priority to GB1208349A priority Critical patent/GB712606A/en
Publication of GB712606A publication Critical patent/GB712606A/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
    • G03F7/004—Photosensitive materials
    • G03F7/016—Diazonium salts or compounds

Abstract

712,606. Photomechanical printing foils. KALLE & CO. AKT.-GES. May 4. 1950 [May 5, 1949], No. 12083/49. Class 98(2) A photosensitive foil or plate suitable for producing positive images from a positive original comprises a hydrophilic surface such as surfacesaponified cellulose ester or paper sensitized with a layer containing a diazo compound of the formula where R is an aryl, aralkyl, higher alkyl or an aroyl residue; Y is O, S, NH or NR 1 where R, is alkyl, aralkyl oraryl; Ar is an aromatic residue and X the equivalent of an anion of an acid or an aldehyde condensation product thereof, or a diazo sulphonate or diazo amino compound derived from either the diazo compound or its aldehyde condensation product, and on the photosensitive layer a coating of water-soluble film-forming material such as gum arabic, cellulose ethers, polyuronic acids or their salts, dextrine, pectin, sodium alginate, guar resin, polyvinyl resin, polyvinyl pyrrolidone, water-soluble urea resins, protein solutions, polyethylene oxide or sodium metaphosphate. In use the coated foil is exposed in conjunction with an original, if desired by reflex focusing, treated with aqueous liquid such as water containing a salt or dye to remove the water-soluble coating, dried and re-exposed to light without an original; after which application of water. and greasy ink leads to production of images of the same kind as the original. In five specific examples the diazo compounds are (1) the zinc chloride double salt of the condensation product of 4-diazo-diphenylamine sulphate with paraformaldehyde, (2) the diazo compound of 4-amino - 1 (N - [2 : 3:4:6-tetraehlorobenzyl])- aminobenzene, (3) the diazo compound of 4-amino- 1-(N-2 : 6-dichlorobenzyl)-amino-benzene, (4) the reaction product of p-diazo-diphenylether with paraformaldehyde, and (5) the same as (1); the water-soluble film-forming coatings comprise protein, dextrine and polyvinyl alcohol; and the final treatment is with water containing the dyestuff Sirius Light Blue G. Numerous other diazo compounds, and dyestuffs for use in the final treatment are quoted. Example (5) describes production of the printing plate by reflex printing directly from an opaque original. Specifications 697,521, 698,040 and 707,378 are referred to.
GB1208349A 1949-05-05 1949-05-05 Improvements in or relating to photolithographic diazotype printing materials and processes Expired GB712606A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1208349A GB712606A (en) 1949-05-05 1949-05-05 Improvements in or relating to photolithographic diazotype printing materials and processes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1208349A GB712606A (en) 1949-05-05 1949-05-05 Improvements in or relating to photolithographic diazotype printing materials and processes

Publications (1)

Publication Number Publication Date
GB712606A true GB712606A (en) 1954-07-28

Family

ID=9998102

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1208349A Expired GB712606A (en) 1949-05-05 1949-05-05 Improvements in or relating to photolithographic diazotype printing materials and processes

Country Status (1)

Country Link
GB (1) GB712606A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2029592A (en) * 1978-08-10 1980-03-19 Polychrome Corp Storage stable lithographic printing plates
EP0268790A2 (en) 1986-10-17 1988-06-01 Hoechst Aktiengesellschaft Process for electrochemically modifying support materials of aluminum or aluminum alloys, which have been grained in a multi-stage process and use of these materials in the manufacture of offset-printing plates
US5755949A (en) * 1993-12-22 1998-05-26 Agfa-Gevaert Ag Electrochemical graining method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2029592A (en) * 1978-08-10 1980-03-19 Polychrome Corp Storage stable lithographic printing plates
GB2029592B (en) * 1978-08-10 1982-10-20 Polychrome Corp Storage stable lithographic printing plates
EP0268790A2 (en) 1986-10-17 1988-06-01 Hoechst Aktiengesellschaft Process for electrochemically modifying support materials of aluminum or aluminum alloys, which have been grained in a multi-stage process and use of these materials in the manufacture of offset-printing plates
US5755949A (en) * 1993-12-22 1998-05-26 Agfa-Gevaert Ag Electrochemical graining method

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