GB190501A - Improvements in photographic paper or tissue for transfer processes - Google Patents

Improvements in photographic paper or tissue for transfer processes

Info

Publication number
GB190501A
GB190501A GB2561920A GB2561920A GB190501A GB 190501 A GB190501 A GB 190501A GB 2561920 A GB2561920 A GB 2561920A GB 2561920 A GB2561920 A GB 2561920A GB 190501 A GB190501 A GB 190501A
Authority
GB
United Kingdom
Prior art keywords
gelatin
transfer
gelatine
tissue
photographic paper
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
GB2561920A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB190501A publication Critical patent/GB190501A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/805—Photosensitive materials characterised by the base or auxiliary layers characterised by stripping layers or stripping means

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Paper (AREA)

Abstract

190,501. Middleton, T. P. Sept. 26, 1921. No Patent granted (Sealing fee not paid). Plates, films, and papers; developing and after treatment.-A composite tissue for making wash-out reliefs after transfer in known manner consists of a barytaed paper base, bearing a stiatum of soluble gelatine upon which is laid a sensitive stratum of gelatine-haloid silver emulsion containing no more chrome alum or other hardening agent than is needed, according to the gelatin used, to adjust it to dissolve readily in water at or about a temperature of 95‹ F. Alternative processes are described for producing local insolubility of the gelatin in the presence of the silver image either before. or after fixing or by development with pyrogallol and ammonia. Transfer follows and subsequent treatment with warm water sodium bichromate or other solvent of gelatin to obtain a relief image. Specification 1436/81 is referred to.
GB2561920A 1921-09-26 1921-09-26 Improvements in photographic paper or tissue for transfer processes Expired GB190501A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2561921 1921-09-26

Publications (1)

Publication Number Publication Date
GB190501A true GB190501A (en) 1922-12-27

Family

ID=10230588

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2561920A Expired GB190501A (en) 1921-09-26 1921-09-26 Improvements in photographic paper or tissue for transfer processes

Country Status (1)

Country Link
GB (1) GB190501A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2650877A (en) * 1949-12-09 1953-09-01 Du Pont Process of producing etched printing plates

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2650877A (en) * 1949-12-09 1953-09-01 Du Pont Process of producing etched printing plates

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