US1974334A - Process of coloring silver images - Google Patents

Process of coloring silver images Download PDF

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Publication number
US1974334A
US1974334A US634981A US63498132A US1974334A US 1974334 A US1974334 A US 1974334A US 634981 A US634981 A US 634981A US 63498132 A US63498132 A US 63498132A US 1974334 A US1974334 A US 1974334A
Authority
US
United States
Prior art keywords
silver
colored
image
colloid
coloring
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 - Lifetime
Application number
US634981A
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English (en)
Inventor
Kaufhold Robert
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.)
FIRM KOH I NOOR BLEISTIFTFABRI
Firm Koh-I-Noor-Bleistiftfabrik L & C Hardtmuth
Original Assignee
FIRM KOH I NOOR BLEISTIFTFABRI
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 FIRM KOH I NOOR BLEISTIFTFABRI filed Critical FIRM KOH I NOOR BLEISTIFTFABRI
Application granted granted Critical
Publication of US1974334A publication Critical patent/US1974334A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G03C11/00—Auxiliary processes in photography
    • G03C11/18—Colouring
    • 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
    • G03C7/18—Processes for the correction of the colour image in subtractive colour photography

Definitions

  • Suitable bleaching agents are, for inshades correctly, since the grey silver particles stance, the solutions used by the preparation of willshine through the layer of colors, whereby imbromoiland ozobromium prints. Solutions of "'10 pure tones are produced. Moreover, when Workthis kind will penetrate all layers and convert the 65 ing after these known methods, it would be neces- .blackened silver of the original image into white sary, in order to obtain satisfactory results, to silver. Simultaneously the ozobromium content color the areas of different light values individof the bleaching agents will cause a hardening of ually and with utmost care.
  • the dark liquid tions are not so-called genuine color solutions, as layer of gelatine moistens the dry powdered color for instance, anilin color substances diluted in lying underneath down to the bottom.
  • layer of gelatine moistens the dry powdered color for instance, anilin color substances diluted in lying underneath down to the bottom.
  • insoluble color substances finely divided f01e by the penetration 0f the gelatine into the 100 in benzine, turpentine oil, etc., which vclatilize dry red or other powdered Color, a red glue layer after application, leaving the dry powder color and above it a dark glue layer lies on the silver behind.v
  • no regard is taken to light and imagedark tones or shades.
  • the present process is carried out in a separate manner i. e., at first the pigment is applied and then the layer of glufe, whereupon both layers are united.
  • Lazur-colors are transparent colors. In Fig. 3 the completely fixed image is shown.
  • a process of coloring silver images comprising the steps of painting the image with suitable pigments, coating it with a layer of colloid, then bleaching it so that the colloid layers on the image become hardened in accordance with the original image, washing away the soluble colloid and fixing out the bleached silver.
  • a process of coloring silver images comprising the steps of painting the image with suitable pigments, coating it with a layer of an uncolored colloid, then bleaching it'so that the colloid layers on the Vimage become hardened in accordance with the original image-washing away the soluble colloid and fixing out the bleached silver.
  • a process of coloring silver images comprising the steps of painting the image with a phrrality of layers of suitable pigments, coating it with a layer of-colloid, then bleaching it so thatVVA the colloid layers on the image become hardened in accordance with the original image, Washing" away VVthe soluble colloid and xing out the bleached silver.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
US634981A 1929-08-30 1932-09-26 Process of coloring silver images Expired - Lifetime US1974334A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE1974334X 1929-08-30
DEK0116397 1929-08-30
DEK116397D DE552067C (de) 1929-08-30 1929-08-31 Verfahren zur Faerbung von Silberbildern

Publications (1)

Publication Number Publication Date
US1974334A true US1974334A (en) 1934-09-18

Family

ID=78668977

Family Applications (1)

Application Number Title Priority Date Filing Date
US634981A Expired - Lifetime US1974334A (en) 1929-08-30 1932-09-26 Process of coloring silver images

Country Status (2)

Country Link
US (1) US1974334A (de)
DE (1) DE552067C (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2543623A (en) * 1948-06-22 1951-02-27 Fischer Frank Method of making multicolor printing plates

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2543623A (en) * 1948-06-22 1951-02-27 Fischer Frank Method of making multicolor printing plates

Also Published As

Publication number Publication date
DE552067C (de) 1935-10-02

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