[go: up one dir, main page]

GB1451345A - Photographic colour diffusion transfer product and method of manufacture - Google Patents

Photographic colour diffusion transfer product and method of manufacture

Info

Publication number
GB1451345A
GB1451345A GB4974073A GB4974073A GB1451345A GB 1451345 A GB1451345 A GB 1451345A GB 4974073 A GB4974073 A GB 4974073A GB 4974073 A GB4974073 A GB 4974073A GB 1451345 A GB1451345 A GB 1451345A
Authority
GB
United Kingdom
Prior art keywords
exposure
uniform exposure
emulsions
wavelength range
uniform
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
GB4974073A
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 GB1451345A publication Critical patent/GB1451345A/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
    • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/26—Silver halide emulsions for subtractive colour processes
    • 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
    • G03C8/50—Peel-apart units, i.e. the image-forming section being separated from the image-receiving section
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1007—Running or continuous length work
    • Y10T156/1008—Longitudinal bending
    • Y10T156/1011—Overedge bending or overedge folding

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)

Abstract

1451345 Making photographic colour diffusion transfer materials POLAROID CORP 25 Oct 1973 [25 Oct 1972] 49740/73 Headings G2C and G2X The sensitometry of a multi-colour photosensitive element comprising a support bearing blue-, green- and red-sensitive silver halide emulsion layers associated with yellow, magenta and cyan image dye-providing materials respectively is improved by forming a weak latent image in at least one of the emulsions by uniform exposure of the element to light of a predetermined intensity and wavelength range. Usually uniform exposure is so conducted that at least the green-and red-sensitive emulsions carry the latent image. The uniform exposure is preferably conducted by giving a uniform exposure to a first wavelength range which exposes each emulsion and to a second wavelength range which further exposes at least one of the emulsions. Best results are obtained when the intensity and wavelength range of the exposure are such that the slopes of the D log E curves of positive transfer images obtained upon subsequent imagewise exposure and development of the emulsions are in a more nearly parallel relationship with each other than in the absence of the uniform exposure. Uniform exposure may be effected after ageing the photo-sensitive element until stable sensitometric properties are achieved. The total amount of the uniform exposure may be such that it reduces the maximum reflection density upon subsequent imagewise exposure and development by not more than 0À2. The intensity of the uniform exposure may be <SP>1</SP>/ 2500 -<SP>1</SP>/ 400 of the exposure needed to give fully exposed areas. The image-dye providing material may be a dye developer. The element may be of the multi-layer type or of the screen type. The invention also comprises apparatus for assembling the above element including a rupturable container releasably holding a processing composition as described in Specification 1342572 but also comprising a pre-exposure station 84, 86.
GB4974073A 1972-10-25 1973-10-25 Photographic colour diffusion transfer product and method of manufacture Expired GB1451345A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00300710A US3819376A (en) 1972-10-25 1972-10-25 Sensitometric modification by pre-exposure

Publications (1)

Publication Number Publication Date
GB1451345A true GB1451345A (en) 1976-09-29

Family

ID=23160256

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4974073A Expired GB1451345A (en) 1972-10-25 1973-10-25 Photographic colour diffusion transfer product and method of manufacture

Country Status (7)

Country Link
US (1) US3819376A (en)
JP (1) JPS586938B2 (en)
CA (1) CA1014399A (en)
DE (1) DE2353534C3 (en)
FR (1) FR2204819B1 (en)
GB (1) GB1451345A (en)
NL (1) NL175953C (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3990898A (en) * 1974-06-26 1976-11-09 Polaroid Corporation In-process color balance adjustment of photographic film using filter dyes
US4329411A (en) * 1974-12-30 1982-05-11 Polaroid Corporation Multicolor diffusion transfer products
JPS53144330A (en) * 1977-05-23 1978-12-15 Fuji Photo Film Co Ltd Correcting device for color temperature of camera
US4172640A (en) * 1977-12-30 1979-10-30 Polaroid Corporation Movie camera having supplemental exposure
US4634244A (en) * 1985-12-16 1987-01-06 Daniel Jobin Flashing device for motion picture camera
US5328787A (en) * 1993-05-24 1994-07-12 Eastman Kodak Company Method for assessing and controlling the sensitometric characteristics of photographic products
JP3535390B2 (en) * 1998-09-03 2004-06-07 株式会社東芝 Inspection method of exposure mask and recording medium recording program for searching for length measurement location
DE60038142T2 (en) * 1999-07-02 2009-02-19 Fujifilm Corporation Method and apparatus for producing instant film unit
US7777859B2 (en) * 2004-05-06 2010-08-17 Eastman Kodak Company Two-stage exposure device for watermarking film
FR3152098A1 (en) 2023-08-09 2025-02-14 Stmicroelectronics International N.V. Voltage ramp generator

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1266438A (en) * 1960-09-03 1961-07-07 Agfa Ag Method for influencing the gradation of color photographic copying material
BE624802A (en) * 1961-11-16
US3352672A (en) * 1964-04-09 1967-11-14 Eastman Kodak Co Photographic direct positive color process and element
US3647437A (en) * 1970-12-18 1972-03-07 Polaroid Corp Photographic products, processes and compositions
AU450148B2 (en) * 1970-12-18 1974-06-27 Polaroid Corp. Color diffusion transfer film unit containing a temporary barrier for developing restrainers
US3752723A (en) * 1971-04-20 1973-08-14 Polaroid Corp Method of manufacturing self developing photographic film units

Also Published As

Publication number Publication date
DE2353534C3 (en) 1982-09-02
JPS4975329A (en) 1974-07-20
NL175953C (en) 1985-01-16
FR2204819B1 (en) 1982-06-11
NL175953B (en) 1984-08-16
NL7314685A (en) 1974-04-29
DE2353534A1 (en) 1974-05-09
DE2353534B2 (en) 1981-02-19
US3819376A (en) 1974-06-25
JPS586938B2 (en) 1983-02-07
FR2204819A1 (en) 1974-05-24
CA1014399A (en) 1977-07-26

Similar Documents

Publication Publication Date Title
GB1350249A (en) Colour photographic silver halide materials
GB1451345A (en) Photographic colour diffusion transfer product and method of manufacture
US3708298A (en) Method of producing direct positive images with photographic silver halide material containing compound releasing iodide ions
EP0099138B1 (en) Method for improving the colour balance of photographic multicolour images
EP0086517A1 (en) Method of improving the colour balance of multicolour prints
US3253918A (en) Print-out element
GB595419A (en) Improvements in photographic processes
US2316803A (en) Photographic material for taking color photographs
US2231685A (en) Photographic color process and film for use therein
EP0104351B1 (en) Gelatin silver halide photographic elements for tanning development
GB1509425A (en) Light-sensitive colour photographic silver halide materia
GB1157984A (en) Improvements relating to Producing Colour Separation Records
US3162533A (en) Method and means for controlling photographic masks and color selections
US3617272A (en) Multicolor dye developer systems
GB561674A (en) Improvements in methods of colour correction in colour photography
US2997388A (en) Lippmann emulsion masking process
GB541266A (en) Improvements in methods of producing colour photographs employing colour correction
US3411905A (en) Photographic masking process
US2312543A (en) Photographic printing material and process for using the same
US4619889A (en) Image forming method
JPS5559462A (en) Silver halide multilayer color photographic material
GB562019A (en) Improvements in sensitive colour photographic materials
US2457005A (en) Photographic process
US2533452A (en) Photographic brightness correction mask
GB2082340A (en) Production of Photographic Masked Colour Images

Legal Events

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

Effective date: 19921025