GB331042A - An improved photographic roll film - Google Patents

An improved photographic roll film

Info

Publication number
GB331042A
GB331042A GB1452529A GB1452529A GB331042A GB 331042 A GB331042 A GB 331042A GB 1452529 A GB1452529 A GB 1452529A GB 1452529 A GB1452529 A GB 1452529A GB 331042 A GB331042 A GB 331042A
Authority
GB
United Kingdom
Prior art keywords
water
colour
soluble
roll
film
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
GB1452529A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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
Priority claimed from DEI33955D external-priority patent/DE487586C/en
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB1452529A priority Critical patent/GB331042A/en
Publication of GB331042A publication Critical patent/GB331042A/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
    • G03C11/00—Auxiliary processes in photography
    • G03C11/02—Marking or applying text

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Steroid Compounds (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

331,042. I. G. Farbenindustrie Akt.- Ges. May 9, 1929. Addition to 308, 693. [Class 98 (ii), Photographic processes &c.]. Roll-film cartridges.-The sensitive surface at the ends of a roll-film is coloured by the process described in the parent Specification, according to which water-soluble as well as water-insoluble colouring matters are used provided they are soluble in organic solvents to which water has been added. A portion of the surface can be left untreated to form visible inscriptions. The colour and degree of colour are determined by the sensitivity of the emulsion, and as there is sufficient length to form several protecting layers, the extension need not be completely non-actinic. A tanning agent may be used to increase the stability of the colouring matter, and a wetting medium (e.g. sodium phenylacetate or saponin) can be incorporated to ensure uniform colouration.
GB1452529A 1928-03-26 1929-05-09 An improved photographic roll film Expired GB331042A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1452529A GB331042A (en) 1928-03-26 1929-05-09 An improved photographic roll film

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEI33955D DE487586C (en) 1928-03-26 1928-03-26 Process for printing on photographic gelatin layers
GB1452529A GB331042A (en) 1928-03-26 1929-05-09 An improved photographic roll film

Publications (1)

Publication Number Publication Date
GB331042A true GB331042A (en) 1930-06-26

Family

ID=25981481

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1452529A Expired GB331042A (en) 1928-03-26 1929-05-09 An improved photographic roll film

Country Status (1)

Country Link
GB (1) GB331042A (en)

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