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GB935428A - Improvements in or relating to the production of photographic prints - Google Patents

Improvements in or relating to the production of photographic prints

Info

Publication number
GB935428A
GB935428A GB2203460A GB2203460A GB935428A GB 935428 A GB935428 A GB 935428A GB 2203460 A GB2203460 A GB 2203460A GB 2203460 A GB2203460 A GB 2203460A GB 935428 A GB935428 A GB 935428A
Authority
GB
United Kingdom
Prior art keywords
ferric salt
coating
zindler
agent
undercoating
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
GB2203460A
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 GB935428A publication Critical patent/GB935428A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00Photosensitive materials
    • G03C1/64Compositions containing iron compounds as photosensitive substances

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Abstract

935,428. Iron salt vesicular image-forming materials. W. ZINDLER, [trading as LUMOPRINT ZINDLER KOMM.-GES.]. June 23, 1960 [July 7, 1959], No. 22034/60. Addition to 922,595. Drawings to Specification. Class 98 (2). To improve the sensitivity and image quality and stability of the ferric salt vesicular material of the parent Specification, there is added to the ferric salt coating or to an undercoating, e.g. containing a toning agent, if this is provided, a dicarboxylic acid containing at least 10 carbon atoms. The preferred acid is sebacic acid and this may comprise from 5 to 10% by weight of the ferric salt coating. Oxalic, citric or tartaric acids and a whitening agent, e.g. a white pigment or an optical brightener may also be included in the coatings, while the gelatin used as the coating vehicle may also include gum arabic. A colour-forming agent may be included in the ferric salt or undercoating layers. Examples are salicylaldoxime, Malachite green, and Rhodamine B giving brown, green and red colours in the exposed areas.
GB2203460A 1959-07-07 1960-06-23 Improvements in or relating to the production of photographic prints Expired GB935428A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL33665A DE1175987B (en) 1959-07-07 1959-07-07 Photosensitive material for developing images with heat

Publications (1)

Publication Number Publication Date
GB935428A true GB935428A (en) 1963-08-28

Family

ID=7266374

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2203460A Expired GB935428A (en) 1959-07-07 1960-06-23 Improvements in or relating to the production of photographic prints

Country Status (3)

Country Link
BE (1) BE590537A (en)
DE (1) DE1175987B (en)
GB (1) GB935428A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3549376A (en) * 1967-11-02 1970-12-22 Du Pont Image-forming compositions containing polymer binding agents and coordination complexes of iron (iii) organic salts
WO2015191004A1 (en) * 2014-06-09 2015-12-17 Agency For Science, Technology And Research Metal complexes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2961707A (en) * 1957-10-29 1960-11-29 Marbill Company Mold for making shoes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3549376A (en) * 1967-11-02 1970-12-22 Du Pont Image-forming compositions containing polymer binding agents and coordination complexes of iron (iii) organic salts
WO2015191004A1 (en) * 2014-06-09 2015-12-17 Agency For Science, Technology And Research Metal complexes
US10934442B2 (en) 2014-06-09 2021-03-02 Agency For Science, Technology And Research Metal complexes

Also Published As

Publication number Publication date
DE1175987B (en) 1964-08-13
BE590537A (en)

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