GB798200A - Improvements in and relating to photosensitive elements and processes of preparing photographic images - Google Patents

Improvements in and relating to photosensitive elements and processes of preparing photographic images

Info

Publication number
GB798200A
GB798200A GB9731/56A GB973156A GB798200A GB 798200 A GB798200 A GB 798200A GB 9731/56 A GB9731/56 A GB 9731/56A GB 973156 A GB973156 A GB 973156A GB 798200 A GB798200 A GB 798200A
Authority
GB
United Kingdom
Prior art keywords
complex
solution
diazonium compound
metal
mpc
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
GB9731/56A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB798200A publication Critical patent/GB798200A/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
    • G03C1/52—Compositions containing diazo compounds as photosensitive substances
    • G03C1/61—Compositions containing diazo compounds as photosensitive substances with non-macromolecular additives

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Abstract

798,200. Photographic elements. DU PONT DE NEMOURS & CO., E. I. March 28, 1956 [April 6, 1955], No. 9731/56. Class 98(2) A photographic light-sensitive element contains a solvent-soluble phthalocyanine intermediate complex which on reduction gives an insoluble phthalocyanine pigment, and a diazonium compound. The complex may be one of those described in Specification 745,359 [Group IV(c)], or it may have the formula MPc(OR)nxh (where MPc stands for a metal or metal-free phthalocyanine molecule, X is Cl or Br, R is an alkyl group and n is 1 to 4, and in which the metal may be Cu, Co, Ni, Cr, Fe, Mg, or Na), or it may have the formula MPc (O.COR 2 (wnere COR is an acyl group of a carboxylic acid having 2 to 7 carbon atoms). Such complexes are described in U.S.A. Specifications 2,662,895, 2,662,896 and 2,662,897. A support such as of paper may be impregnated with a solution of the complex and diazonium compound in methanol, ethanol acetone, toluene, xylenes, chloroform, benzene, dioxane or ethylene glycol monoethyl monobutyl or monomethyl ether. Alternatively a support may be first coated with a colloid (e.g. gelatin, polyvinyl alcohol or polyvinyl acetal) and then impregnated with the solution or it may be coated with a mixture of an aqeuous dispersion of the colloid and the solution of complex and diazonium compound. Suitable diazonium compounds are specified. Exposure renders the diazonium compound reducing and the complex is thus reduced to insoluble phthalocyanine pigment in the exposed portions. After exposure, the unreacted complex is removed with a solvent or by treating with an aqueous solution of an acid.
GB9731/56A 1955-04-06 1956-03-28 Improvements in and relating to photosensitive elements and processes of preparing photographic images Expired GB798200A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US499753A US2884326A (en) 1955-04-06 1955-04-06 Leuco phthalocyanine and diazo compound in photographic element

Publications (1)

Publication Number Publication Date
GB798200A true GB798200A (en) 1958-07-16

Family

ID=23986555

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9731/56A Expired GB798200A (en) 1955-04-06 1956-03-28 Improvements in and relating to photosensitive elements and processes of preparing photographic images

Country Status (5)

Country Link
US (1) US2884326A (en)
BE (1) BE546818A (en)
DE (1) DE1025715B (en)
FR (1) FR1149297A (en)
GB (1) GB798200A (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE637359A (en) * 1962-09-15
DE1225490B (en) * 1964-02-27 1966-09-22 Heinrich Heichlinger Material for the production of negative master copies
US3445233A (en) * 1965-04-16 1969-05-20 Du Pont Photosensitive composition
US3482972A (en) * 1967-12-28 1969-12-09 Polaroid Corp Substituted phthalocyanine dye developers and their use in multicolor diffusion transfer processes
US3887379A (en) * 1972-03-30 1975-06-03 Ibm Photoresist azide sensitizer composition
US4195998A (en) * 1974-04-15 1980-04-01 Eastman Kodak Company CO(III) Complex containing radiation sensitive element with diazo recording layer
CA1051705A (en) * 1974-04-15 1979-04-03 Thap Dominh High gain transition metal complex imaging
US4201588A (en) * 1974-04-15 1980-05-06 Eastman Kodak Company Radiation sensitive co(III)complex photoreduction element with image recording layer
US4324852A (en) * 1974-04-15 1982-04-13 Eastman Kodak Company Transition metal photoreduction systems and processes
JPS50137721A (en) * 1974-04-22 1975-11-01
US4336323A (en) * 1979-12-07 1982-06-22 Minnesota Mining And Manufacturing Company Decolorizable imaging system
DE3069247D1 (en) * 1979-12-07 1984-10-25 Minnesota Mining & Mfg Diazonium imaging system
US4370401A (en) * 1979-12-07 1983-01-25 Minnesota Mining And Manufacturing Company Light sensitive, thermally developable imaging system
US4373020A (en) * 1979-12-07 1983-02-08 Minnesota Mining And Manufacturing Company Decolorizable imaging system
US4460677A (en) * 1981-03-26 1984-07-17 Minnesota Mining And Manufacturing Company Visible light sensitive, thermally developable imaging systems
JPH0642071B2 (en) * 1985-11-09 1994-06-01 コニカ株式会社 Photosensitive composition and photosensitive lithographic printing plate
US20050053864A1 (en) * 2003-09-05 2005-03-10 Rolf Dessauer Phthalocyanine precursors in infrared sensitive compositions

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB309166A (en) * 1928-04-07 1930-06-10 Walter Haendel A process for dyeing and figuring woven, knitted and plaited fabrics, leather and other fibrous materials
BE424152A (en) * 1936-10-21
GB653698A (en) * 1948-07-14 1951-05-23 Calico Printers Ass Ltd Improvements relating to the development of colour on sheet materials such as textiles
US2683643A (en) * 1949-08-25 1954-07-13 Bayer Ag Process of dyeing and printing and composition therefor

Also Published As

Publication number Publication date
FR1149297A (en) 1957-12-23
DE1025715B (en) 1958-03-06
US2884326A (en) 1959-04-28
BE546818A (en)

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