US2075144A - Antihalation layers for photographic plates and films - Google Patents

Antihalation layers for photographic plates and films Download PDF

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Publication number
US2075144A
US2075144A US569067A US56906731A US2075144A US 2075144 A US2075144 A US 2075144A US 569067 A US569067 A US 569067A US 56906731 A US56906731 A US 56906731A US 2075144 A US2075144 A US 2075144A
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US
United States
Prior art keywords
layer
halation
films
photographic plates
antihalation layers
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
US569067A
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English (en)
Inventor
Schneider Wilhelm
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 US2075144A publication Critical patent/US2075144A/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
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/825—Photosensitive materials characterised by the base or auxiliary layers characterised by antireflection means or visible-light filtering means, e.g. antihalation
    • 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
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/7614—Cover layers; Backing layers; Base or auxiliary layers characterised by means for lubricating, for rendering anti-abrasive or for preventing adhesion
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/156—Precursor compound
    • Y10S430/16—Blocked developers

Definitions

  • My present invention relates to anti-halation Suitable compounds for the aforesaid purpose layers for photographic plates and lms, and 'are likewise diarylmethanes of the kind described more particularly to a protective layer for an Which bear besides'a carboxyl group or hydroxyl anti-halation layer applied on the back lof such group a hydroxy alkyl group.
  • the anti-halation layer thus ob- (IJOOH 00H tained is coated with a 'solution of 4 grams of dihydroxydiphenylmethanev dicarboxylic acid (see Formula 1) in 100 cc. of ethanol. 35
  • a cenmcse acetate mm is provided with an CH anti-halation layer from a solution of 2 grams of (2)v i y gum arabic, 1 gram of methyl blue, 50 cc. lof
  • ligure' I is the glass plate which serves'as support
  • 2 is the emulsion layer
  • 3 is the color layer forming the anti-halation layer on the back of the plate
  • l is my new coating layer 5 preventing particles of being split off from the color layer.
  • Photographic plates or films provided on their rear side with an anti-halation layer, said 10 anti-halaton layer'being coated with a protection layer comprising a derivative of a diarylmethane substituted with at least one radical of the group consisting of -OH and --COOHl 2.
  • Photographic plates or lms provided on 15 their rear side with an anti-halation layer, said anti-halation layer'being coated with a protec-l tion layer comprising dihydroxydiphenylmethl ane-dicarboxylic acid.
  • Photographic plates or iilms comprising a support bearing on one side a light-sensitive emulsion layer and on the rear side a solid anti.- halation layer containing a colored anti-halation material which is permanently removable ⁇ by an alkaline developer bath, said anti-halation layer being coated with a protective layer which is insoluble in water but soluble in an alkaline developer bath.
  • Photographic plates or lms comprising a support bearing on one side a light-sensitive emulsion layer, and on the rear side, a solid antihalation layer containing a colored anti-halation material, which is permanently removable by an alkaline .developer bath, said anti-halation layer being coated with a protective layer, which is insoluble in water but soluble in an alkaline developer bath within about -30-40 seconds.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
US569067A 1930-11-01 1931-10-15 Antihalation layers for photographic plates and films Expired - Lifetime US2075144A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE547599T 1930-11-01

Publications (1)

Publication Number Publication Date
US2075144A true US2075144A (en) 1937-03-30

Family

ID=34427999

Family Applications (1)

Application Number Title Priority Date Filing Date
US569067A Expired - Lifetime US2075144A (en) 1930-11-01 1931-10-15 Antihalation layers for photographic plates and films

Country Status (4)

Country Link
US (1) US2075144A (fr)
DE (1) DE547599C (fr)
FR (1) FR724619A (fr)
GB (1) GB374735A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2548982A (en) * 1949-03-18 1951-04-17 Dominion Tar & Chemical Co Polyaryl polyparaffins
US2744882A (en) * 1949-01-26 1956-05-08 Union Carbide & Carbon Corp Unsymmetrical diphenylol methanes
US2849325A (en) * 1952-06-28 1958-08-26 Hercules Powder Co Ltd Stabilized cellulose ether composition

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2744882A (en) * 1949-01-26 1956-05-08 Union Carbide & Carbon Corp Unsymmetrical diphenylol methanes
US2548982A (en) * 1949-03-18 1951-04-17 Dominion Tar & Chemical Co Polyaryl polyparaffins
US2849325A (en) * 1952-06-28 1958-08-26 Hercules Powder Co Ltd Stabilized cellulose ether composition

Also Published As

Publication number Publication date
GB374735A (en) 1932-06-16
DE547599C (de) 1932-03-26
FR724619A (fr) 1932-04-29

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