US1870354A - Photographic gelatine layer - Google Patents

Photographic gelatine layer Download PDF

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Publication number
US1870354A
US1870354A US549331A US54933131A US1870354A US 1870354 A US1870354 A US 1870354A US 549331 A US549331 A US 549331A US 54933131 A US54933131 A US 54933131A US 1870354 A US1870354 A US 1870354A
Authority
US
United States
Prior art keywords
gelatine
photographic
layer
emulsion
hardening
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
US549331A
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English (en)
Inventor
Brunken Johannes
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.)
GAF Chemicals Corp
Original Assignee
Agfa Ansco 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 Agfa Ansco Corp filed Critical Agfa Ansco Corp
Application granted granted Critical
Publication of US1870354A publication Critical patent/US1870354A/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
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/30—Hardeners
    • G03C1/301—Aldehydes or derivatives thereof, e.g. bisulfite addition products

Definitions

  • the present invention relates to an improvement in the manufacture of photographic materials and more particularly to a process of hardening the gelatinous emulsion layers on photographic films, plates or papers.
  • Another object of the invention are the new photographic materials provided with a gelatine layer prepared according to the in- 1 vention.
  • the afterhardenin can considerably be reduced by using dial ehydes as hardening agents for photographic gelatine emulsions.
  • the reaction of dialdehydes with the gelatine obviously occurs at aconsiderably higher speed.
  • dialdehydes have, as compared with formaline andacrolein, the further advantage of exerting a stronger hardening ⁇ action, when comparing equivalent quantiti'es.
  • dialdehydes when compared with the metal salts, for instance of aluminium or chromium, known to be hardening agents for albuminous substances the dialdehydes involve an advantage inasmuch as the hardness obtained by their action remains constant in the alkaline developer and is not reduced, as it is the case with the said metal salts, by the action of the alkali.
  • Dialdehydes suitable according to this invention are for instance, glyoxal and mesoxaldialdehy e. Both the monomeric and the polymeric forms are suited, with the difierence that the latter have a somewhat smaller hardening action.
  • the hardening process may be carried out in the same way as with formaldehyde, either by adding the hardening agent to a solution of the gelatine or by subsequently bathing the shaped and dried albuminous bodies in a solution of the hardening agent. 1
  • step which 1 comprises acting, upon the said gelatine emulsion with a ute solution of glyoxal.
  • Photographic materials provided with a gelatine silver halide emulsion layer, said gelatine layer containing the condensation. product of gelatine with an aliphatic dialdehyde.
  • Photographic materials provided with a gelatine silver halideemulsion'layer, said gelatine layer containing the condensation product of gelatine with glyoxal.
  • Photographic materials provided with a gelatine silver halide emulsion layer said gelatine la er containing the condensation pfoduclt 0g gelatine with a polymerized g yoxa 8.

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
  • Laminated Bodies (AREA)
  • Paints Or Removers (AREA)
US549331A 1930-07-12 1931-07-07 Photographic gelatine layer Expired - Lifetime US1870354A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE538713T 1930-07-12

Publications (1)

Publication Number Publication Date
US1870354A true US1870354A (en) 1932-08-09

Family

ID=34122365

Family Applications (1)

Application Number Title Priority Date Filing Date
US549331A Expired - Lifetime US1870354A (en) 1930-07-12 1931-07-07 Photographic gelatine layer

Country Status (5)

Country Link
US (1) US1870354A (en(2012))
BE (1) BE381162A (en(2012))
DE (1) DE538713C (en(2012))
FR (1) FR719891A (en(2012))
GB (1) GB373829A (en(2012))

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2553506A (en) * 1946-12-10 1951-05-15 Hardened gelatino-silver halede
US2593912A (en) * 1948-11-19 1952-04-22 Gen Aniline & Film Corp Photographic film containing hardened gelatin
US2642362A (en) * 1949-03-18 1953-06-16 Eastman Kodak Co Light-sensitive baryta-coated photographic paper
US2663639A (en) * 1950-01-28 1953-12-22 Harris Seybold Co Printing plate preparation
US2671024A (en) * 1950-12-06 1954-03-02 Gen Aniline & Film Corp Stabilization of photographic glyoxal hardening solutions with water soluble boron compounds
US3058827A (en) * 1960-02-09 1962-10-16 Eastman Kodak Co Dialdehyde starch as gelatin hardener
EP0228084A2 (en) 1985-12-25 1987-07-08 Fuji Photo Film Co., Ltd. Image forming process
US6071688A (en) * 1998-07-29 2000-06-06 Eastman Kodak Company Providing additives to a coating composition by vaporization
EP1215532A3 (en) * 2000-12-06 2003-10-22 Eastman Kodak Company Emulsion composition to control film core-set

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1047350B (de) * 1956-02-02 1958-12-24 Josef Baranyi Sulfitablaugehaltiger Leim

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2553506A (en) * 1946-12-10 1951-05-15 Hardened gelatino-silver halede
US2593912A (en) * 1948-11-19 1952-04-22 Gen Aniline & Film Corp Photographic film containing hardened gelatin
US2642362A (en) * 1949-03-18 1953-06-16 Eastman Kodak Co Light-sensitive baryta-coated photographic paper
US2663639A (en) * 1950-01-28 1953-12-22 Harris Seybold Co Printing plate preparation
US2671024A (en) * 1950-12-06 1954-03-02 Gen Aniline & Film Corp Stabilization of photographic glyoxal hardening solutions with water soluble boron compounds
US3058827A (en) * 1960-02-09 1962-10-16 Eastman Kodak Co Dialdehyde starch as gelatin hardener
EP0228084A2 (en) 1985-12-25 1987-07-08 Fuji Photo Film Co., Ltd. Image forming process
US6071688A (en) * 1998-07-29 2000-06-06 Eastman Kodak Company Providing additives to a coating composition by vaporization
EP1215532A3 (en) * 2000-12-06 2003-10-22 Eastman Kodak Company Emulsion composition to control film core-set

Also Published As

Publication number Publication date
BE381162A (en(2012))
FR719891A (fr) 1932-02-12
GB373829A (en) 1932-06-02
DE538713C (de) 1931-11-16

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