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GB286736A - Process for producing photo-prints and photo-copies - Google Patents

Process for producing photo-prints and photo-copies

Info

Publication number
GB286736A
GB286736A GB7490/28A GB749028A GB286736A GB 286736 A GB286736 A GB 286736A GB 7490/28 A GB7490/28 A GB 7490/28A GB 749028 A GB749028 A GB 749028A GB 286736 A GB286736 A GB 286736A
Authority
GB
United Kingdom
Prior art keywords
photo
prints
copies
sensitive layer
light
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
GB7490/28A
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
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB286736A publication Critical patent/GB286736A/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
    • G03C1/72—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705
    • G03C1/73—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705 containing organic compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)

Abstract

286,736. I. G. Farbenindustrie Akt.- Ges. March 10, 1927, [Convention date]. Addition to 286,233. Processes employing light-sensitive dye-components.-A light-sensitive layer containing a salt of 1 : 2-naphthoquinone-4-sulphonic acid, as in the parent Specification, is developed after exposure by means of an alkaline solution of a. material which contains an acid methylene or methyl group, such as trinitrotoluene, acetoacetic ester, cyanacetamide, methylphenylpyrazolone and resorcinol. The developer may be incorporated in the sensitive layer, in which case the image is produced by subjecting the exposed layer to ammonia vapour. The large number of developers available renders it possible to obtain images in nearly every tint of the colour scale.
GB7490/28A 1927-03-10 1928-03-10 Process for producing photo-prints and photo-copies Expired GB286736A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI0030633 1927-03-10

Publications (1)

Publication Number Publication Date
GB286736A true GB286736A (en) 1928-05-17

Family

ID=7187669

Family Applications (2)

Application Number Title Priority Date Filing Date
GB7490/28A Expired GB286736A (en) 1927-03-10 1928-03-10 Process for producing photo-prints and photo-copies
GB12118/28A Expired GB289386A (en) 1927-03-10 1928-04-25

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB12118/28A Expired GB289386A (en) 1927-03-10 1928-04-25

Country Status (3)

Country Link
US (1) US1833856A (en)
FR (1) FR35018E (en)
GB (2) GB286736A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3192045A (en) * 1963-02-01 1965-06-29 Eastman Kodak Co Non-silver color light sensitive photographic elements and method of using same

Also Published As

Publication number Publication date
US1833856A (en) 1931-11-24
FR35018E (en) 1929-10-30
GB289386A (en) 1928-11-01

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