GB1381107A - Photographic products and processes - Google Patents

Photographic products and processes

Info

Publication number
GB1381107A
GB1381107A GB5936771A GB5936771A GB1381107A GB 1381107 A GB1381107 A GB 1381107A GB 5936771 A GB5936771 A GB 5936771A GB 5936771 A GB5936771 A GB 5936771A GB 1381107 A GB1381107 A GB 1381107A
Authority
GB
United Kingdom
Prior art keywords
layer
photo
product
opaque
transparent
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
GB5936771A
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 GB1381107A publication Critical patent/GB1381107A/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
    • G03C8/42—Structural details
    • G03C8/52—Bases or auxiliary layers; Substances therefor
    • 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
    • G03C8/44—Integral units, i.e. the image-forming section not being separated from the image-receiving section
    • G03C8/48—Integral units, i.e. the image-forming section not being separated from the image-receiving section characterised by substances used for masking the image-forming section

Landscapes

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

Abstract

1381107 Photographic product POLAROID CORP 21 Dec 1971 [28 Dec 1970 1 Nov 1971] 59367/71 Heading G2C A photographic diffusion transfer product which after photo-exposure in a camera can be introduced into the light before development is complete and which comprises a photo-sensitive layer, an image receiving layer, a transparent outer layer through which the photo-sensitive layer can be photo-exposed, a first opaque layer in a position on the side of the photo-sensitive layer distant from the transparent layer and an opacifying system capable of being spread between the transparent outer layer and the photosensitive layer to form a second opaque layer during development, the opaque layers being in positions such that an image formed in the image receiving layer can be viewed without separation of the layers of the product, and in which the first and second opaque layers prevent fogging of the photo-sensitive element by light incident on them, and in which the outer transparent layer and/or a transparent layer between it and the photo-sensitive element contains pigment in an amount insufficient to prevent transmission of substantially all the light incident on the layer during photo-exposure of the product but sufficient to reduce substantially or prevent fogging during formation of the second opaque layer in areas of the photo-sensitive element where the second opaque layer has not been formed and caused by transmission of light through the product from areas where the second opaque layer has been formed. Preferably the pigment is carbon black and the product is a black-and-white or tripack multi-colour material.
GB5936771A 1970-12-28 1971-12-21 Photographic products and processes Expired GB1381107A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10184270A 1970-12-28 1970-12-28
US19440771A 1971-11-01 1971-11-01

Publications (1)

Publication Number Publication Date
GB1381107A true GB1381107A (en) 1975-01-22

Family

ID=26798694

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5936771A Expired GB1381107A (en) 1970-12-28 1971-12-21 Photographic products and processes

Country Status (8)

Country Link
AU (1) AU456867B2 (en)
BE (1) BE777407A (en)
CA (1) CA951560A (en)
DE (1) DE2165122A1 (en)
FR (1) FR2120883A5 (en)
GB (1) GB1381107A (en)
IT (1) IT945657B (en)
NL (1) NL7117952A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138960A (en) * 1983-04-29 1984-10-31 Kodak Ltd Photographic diffusion transfer processes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138960A (en) * 1983-04-29 1984-10-31 Kodak Ltd Photographic diffusion transfer processes

Also Published As

Publication number Publication date
AU3705771A (en) 1973-06-21
DE2165122A1 (en) 1972-07-13
CA951560A (en) 1974-07-23
AU456867B2 (en) 1975-01-16
FR2120883A5 (en) 1972-08-18
NL7117952A (en) 1972-06-30
IT945657B (en) 1973-05-10
BE777407A (en) 1972-06-28

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Legal Events

Date Code Title Description
414F Notice of opposition given (sect. 14/1949)
414E Application relinquished (sect. 14/1949)
CSNS Application of which complete specification have been accepted and published, but patent is not sealed