GB391970A - Improved method of obtaining photographic contrasts by means of diazonium compounds - Google Patents

Improved method of obtaining photographic contrasts by means of diazonium compounds

Info

Publication number
GB391970A
GB391970A GB11645/32A GB1164532A GB391970A GB 391970 A GB391970 A GB 391970A GB 11645/32 A GB11645/32 A GB 11645/32A GB 1164532 A GB1164532 A GB 1164532A GB 391970 A GB391970 A GB 391970A
Authority
GB
United Kingdom
Prior art keywords
diazo
compound
phenol
exposure
diazonium
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
GB11645/32A
Other languages
English (en)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB391970A publication Critical patent/GB391970A/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
    • G03C1/54—Diazonium salts or diazo anhydrides
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/02—Exposure apparatus for contact printing
    • G03B27/14—Details
    • G03B27/30—Details adapted to be combined with processing apparatus
    • G03B27/303—Gas processing
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
GB11645/32A 1931-05-22 1932-04-22 Improved method of obtaining photographic contrasts by means of diazonium compounds Expired GB391970A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL56995A NL38020C (xx) 1931-05-22 1931-05-22

Publications (1)

Publication Number Publication Date
GB391970A true GB391970A (en) 1933-05-11

Family

ID=19785803

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11645/32A Expired GB391970A (en) 1931-05-22 1932-04-22 Improved method of obtaining photographic contrasts by means of diazonium compounds

Country Status (5)

Country Link
US (1) US2034508A (xx)
BE (1) BE388671A (xx)
FR (2) FR737377A (xx)
GB (1) GB391970A (xx)
NL (1) NL38020C (xx)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2416021A (en) * 1944-12-29 1947-02-18 Gen Aniline & Film Corp Light sensitive diazotype compositions and process
US2542716A (en) * 1945-07-16 1951-02-20 Gen Aniline & Film Corp Multicolor diazotype layers
US2542715A (en) * 1945-07-16 1951-02-20 Gen Aniline & Film Corp Multicolor diazotype layers
NL261709A (xx) * 1960-03-04
US4108664A (en) * 1976-11-01 1978-08-22 Gaf Corporation Light-sensitive negative-working film containing a diazo oxide sensitizer and a p-toluenesulfonyl halide or a 2,4-dihalo-S-triazine
WO2008055244A2 (en) 2006-10-31 2008-05-08 Sensient Colors Inc. Modified pigments and methods for making and using the same
WO2009026552A2 (en) 2007-08-23 2009-02-26 Sensient Colors Inc. Self-dispersed pigments and methods for making and using the same
CN102858886A (zh) 2009-04-07 2013-01-02 森馨颜色有限责任公司 自分散颗粒及其制造方法和其用途

Also Published As

Publication number Publication date
FR42120E (fr) 1933-05-31
BE388671A (xx)
NL38020C (xx) 1936-05-16
US2034508A (en) 1936-03-17
FR737377A (fr) 1932-12-10

Similar Documents

Publication Publication Date Title
US1989065A (en) Process for preparing diazo-types and light-sensitive layers therefor
GB391970A (en) Improved method of obtaining photographic contrasts by means of diazonium compounds
US2113944A (en) Production of photographic diazotype prints
US2322982A (en) Photographic printing material
US1444469A (en) Manufacture of light copy paper
GB358814A (en) Improvements in or relating to the fixing of images obtained by a negative diazotypeprocess
US3007795A (en) Process for the production of laterally non-reversed positive copies by heat development
US1762033A (en) Process of preparing pictures to be produced by tanning action
US2171609A (en) Toning photographic prints
US3416924A (en) Heat-developable diazotype material
US2083285A (en) Carrier comprising a diazonium compound and method of obtaining contrasts
US2311016A (en) Photographic material and method of producing same
GB628914A (en) Photoprinting diazotype layers and process of making transition prints
US2504593A (en) Light-sensitive anthraquinone sulfonic acid photoprinting material containing a cupric salt
US3699000A (en) Diazotype photoprinting material
US3719491A (en) Diazo-type reproduction process
US2106868A (en) Method of obtaining photographic contrasts
US2093421A (en) Method of making photoprints and developer therefor
US1963197A (en) Color photography and cinematography
US3597413A (en) Cyanoalkoxybenzene diazonium compounds
US2525751A (en) Light-sensitive diazonium salt materials
GB178828A (en) Photographic print-out paper and prints made therefrom
US2231201A (en) Toning photographic prints
US2312875A (en) Color photography
US3615487A (en) Method for the production of diazo-type intermediate originals