GB1420224A - Photographic products containing ultraviolet absorbers - Google Patents

Photographic products containing ultraviolet absorbers

Info

Publication number
GB1420224A
GB1420224A GB22073A GB22073A GB1420224A GB 1420224 A GB1420224 A GB 1420224A GB 22073 A GB22073 A GB 22073A GB 22073 A GB22073 A GB 22073A GB 1420224 A GB1420224 A GB 1420224A
Authority
GB
United Kingdom
Prior art keywords
layer
amount
pigment
transparent
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
GB22073A
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.)
Polaroid Corp
Original Assignee
Polaroid 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
Application filed by Polaroid Corp filed Critical Polaroid Corp
Publication of GB1420224A publication Critical patent/GB1420224A/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
    • G03C8/00—Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
    • G03C8/24—Photosensitive materials characterised by the image-receiving section
    • 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
    • G03C8/00—Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
    • G03C8/42—Structural details
    • G03C8/52—Bases or auxiliary layers; Substances therefor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)

Abstract

1420224 Photographic diffusion transfer material containing an ultraviolet absorbent POLAROID CORP 2 Jan 1973 [3 Jan 1972 24 Oct 1972] 220/73 Heading G2C A photographic diffusion transfer product for forming a composite print comprising a positive dye image viewable by reflected light against a reflecting background over a negative component comprises a photo-sensitive silver halide system, an image-receiving system comprising an imagereceiving layer and a dimensionally stable transparent layer through which the image is viewable and which contains an ultraviolet absorber which is transparent to visible light but provides an optical density of at least 1, at least between 300 and 375 mÁ, and a light-reflecting layer of lightreflecting agent or means for forming the lightreflecting layer. The ultraviolet absorber may have the Formula:- where A is an optionally substituted phenylene radical bonded by two neighbouring C atoms to two N atoms of the triazole ring and B is optionally substituted phenyl. The dimensionally stable transparent layer may contain a pigment in an amount sufficient to prevent edgewise to transmission of activating radiation to unprotected portions of the photo-sensitive system, the amount also being insufficient to prevent substantially all of the light incident on the layer from being transmitted therethrough. The amount of pigment may be sufficient to provide an optical density for said layer of at least 5 as measured on the edge of the layer at 700 mÁ over a path length of 1 inch. The pigment may be particulate carbon black. The photo-sensitive silver halide system may be associated with a dye developer. The invention also comprises a transparent plastomeric sheet material comprising a polymeric matrix material having dispersed therein a pigment in an amount sufficient to prevent edgewise transmission of light therethrough but said amount also being insufficient to prevent all of the light incident on the material from being transmitted therethrough and additionally having dispersed therein an effective amount of an ultraviolet absorber which is transparent to visible light but has an optical density of at least 1 at least between 300 and 375 mÁ.
GB22073A 1972-01-03 1973-01-02 Photographic products containing ultraviolet absorbers Expired GB1420224A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US21460072A 1972-01-03 1972-01-03
US300277A US3923519A (en) 1972-01-03 1972-10-24 U.V. light absorbers in supports of integral diffusion transfer film units

Publications (1)

Publication Number Publication Date
GB1420224A true GB1420224A (en) 1976-01-07

Family

ID=26909165

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22073A Expired GB1420224A (en) 1972-01-03 1973-01-02 Photographic products containing ultraviolet absorbers

Country Status (7)

Country Link
US (1) US3923519A (en)
JP (1) JPS4875235A (en)
CA (1) CA990121A (en)
DE (1) DE2300173A1 (en)
FR (1) FR2167591B1 (en)
GB (1) GB1420224A (en)
NL (1) NL176981C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4148648A (en) * 1977-02-16 1979-04-10 Polaroid Corporation Diffusion transfer elements comprising U V light absorbers
JPS58214152A (en) * 1982-06-05 1983-12-13 Konishiroku Photo Ind Co Ltd Color photographic sensitive material
USRE37693E1 (en) * 1982-06-05 2002-05-07 Konishiroku Photo Industry Co., Ltd. Color photographic light-sensitive material containing UV filter compounds

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1185610B (en) * 1956-12-14 1965-01-21 Geigy Ag J R Use of 2-phenylbenzotriazole compounds to protect organic substances against ultraviolet radiation
US3004896A (en) * 1956-12-14 1961-10-17 Geigy Ag J R Ultra-violet light-absorbing composition of matter
GB890861A (en) * 1959-01-14 1962-03-07 Polaroid Corp Coloured photographic image protection and product therefor
US3249432A (en) * 1960-08-22 1966-05-03 Polaroid Corp Novel photographic processes
BE623419A (en) * 1961-10-10
US3364022A (en) * 1963-04-01 1968-01-16 Eastman Kodak Co Direct positive photographic color reproduction process and element utilizing thio-substituted hydroquinones as development inhibitors
US3351470A (en) * 1963-07-25 1967-11-07 Polaroid Corp Novel photographic products, processes and compositions
US3330656A (en) * 1963-08-14 1967-07-11 Polaroid Corp Novel photographic products and processes
US3415644A (en) * 1967-03-10 1968-12-10 Polaroid Corp Novel photographic products and processes
US3573043A (en) * 1967-03-10 1971-03-30 Polaroid Corp Photographic diffusion transfer color process and composite film unit for use therein
BE730255A (en) * 1968-03-25 1969-09-01
CA928559A (en) * 1969-10-24 1973-06-19 E. Cole Harold Photographic film unit for diffusion transfer processing
JPS4830493B1 (en) * 1969-12-29 1973-09-20
US3702245A (en) * 1970-06-05 1972-11-07 Polaroid Corp Photographic diffusion-transfer processes and elements utilizing ph-sensitive optical filter agents to prevent fogging by extraneous actinic radiation during development

Also Published As

Publication number Publication date
CA990121A (en) 1976-06-01
JPS4875235A (en) 1973-10-11
DE2300173A1 (en) 1973-07-26
FR2167591B1 (en) 1982-02-19
FR2167591A1 (en) 1973-08-24
DE2300173C2 (en) 1987-09-10
NL7300064A (en) 1973-07-05
US3923519A (en) 1975-12-02
NL176981C (en) 1985-07-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee