GB874698A - Improvements in and relating to light scattering photographic materials - Google Patents

Improvements in and relating to light scattering photographic materials

Info

Publication number
GB874698A
GB874698A GB34827/59A GB3482759A GB874698A GB 874698 A GB874698 A GB 874698A GB 34827/59 A GB34827/59 A GB 34827/59A GB 3482759 A GB3482759 A GB 3482759A GB 874698 A GB874698 A GB 874698A
Authority
GB
United Kingdom
Prior art keywords
immersion
oct
seconds
saline solution
water
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
GB34827/59A
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.)
Kalvar Corp
Original Assignee
Kalvar Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25983201&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=GB874698(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kalvar Corp filed Critical Kalvar Corp
Publication of GB874698A publication Critical patent/GB874698A/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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/60—Processes for obtaining vesicular images

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

874,698. Photographic vesicular processes. KALVAR CORPORATION. Oct. 14, 1959 (Oct. 14, 1958], No. 34827/59. Class 98(2) Light-scattering elements are treated prior to exposure and development with a liquid bath at a temperature between 140‹F. and 212‹F. for a period of 10 to 300 seconds. Contrast is thereby reduced, speed increased and non- uniformity avoided. Five examples describe elements comprising p-diazodimethylaniline zinc chloride dispersed in a vinylidene chloride/ acrylonitrile copolymer with the variations of using I transparent ethyl cellulose or black paper as support with immersion in water at 190‹F. for 20 seconds, II immersion in half-normal saline solution, III and IV polyethylene terephthalate supports with immersion in water and saline solution respectively, and V immersion in aqueous hydroxyethyl-2-heptadecenyl glyoxalidine together with glacial acetic acid. Numerical results concerning the gamma reduction and increase of exposure range by the procedure of the Examples are quoted.
GB34827/59A 1959-10-19 1959-10-14 Improvements in and relating to light scattering photographic materials Expired GB874698A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEK0038943 1959-10-19
US254560A US3149971A (en) 1959-10-19 1963-01-29 Method for improving gradation of light scattering photographic materials

Publications (1)

Publication Number Publication Date
GB874698A true GB874698A (en) 1961-08-10

Family

ID=25983201

Family Applications (2)

Application Number Title Priority Date Filing Date
GB34827/59A Expired GB874698A (en) 1959-10-19 1959-10-14 Improvements in and relating to light scattering photographic materials
GB3897/64A Expired GB999166A (en) 1959-10-19 1964-01-29 Improvements in or relating to light scattering photographic materials

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB3897/64A Expired GB999166A (en) 1959-10-19 1964-01-29 Improvements in or relating to light scattering photographic materials

Country Status (3)

Country Link
US (1) US3149971A (en)
DE (2) DE1422445A1 (en)
GB (2) GB874698A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3386826A (en) * 1964-05-08 1968-06-04 Ibm Process for producing improved diazotype elements
US3841874A (en) * 1971-03-15 1974-10-15 Xidex Corp Method for improving the photographic characteristics of vesicular photographic materials
DE2805680C2 (en) * 1977-03-01 1982-05-27 Bexford Ltd., London Recording materials for the vesicular process and processes for increasing the photosensitivity of such recording materials
DE3162395D1 (en) * 1980-01-24 1984-04-05 Bexford Ltd Process for the production of vesicular recording materials
US4508808A (en) * 1982-11-12 1985-04-02 Xidex Corporation Method of using diazotype photographic materials with preexposure treatment to form uniform sites of refractive index change

Also Published As

Publication number Publication date
DE1447734A1 (en) 1969-01-02
DE1447734C3 (en) 1975-06-05
DE1422445A1 (en) 1969-01-16
GB999166A (en) 1965-07-21
DE1447734B2 (en) 1974-10-10
US3149971A (en) 1964-09-22

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