US1116479A - Photographic film. - Google Patents

Photographic film. Download PDF

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Publication number
US1116479A
US1116479A US37343707A US1907373437A US1116479A US 1116479 A US1116479 A US 1116479A US 37343707 A US37343707 A US 37343707A US 1907373437 A US1907373437 A US 1907373437A US 1116479 A US1116479 A US 1116479A
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United States
Prior art keywords
layer
film
photographic film
coating
agglutinant
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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
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US37343707A
Inventor
Victor Planchon
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.)
PLAQUES ET PAPIERS PHOTOGRAPHIQUES Ste
PLAQUES ET PAPIERS PHOTOGRAPHIQUES SOC D
Original Assignee
PLAQUES ET PAPIERS PHOTOGRAPHIQUES SOC D
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Priority to US37343707A priority Critical patent/US1116479A/en
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Publication of US1116479A publication Critical patent/US1116479A/en
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    • 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
    • G03C1/835—Macromolecular substances therefor, e.g. mordants

Definitions

  • PAPIERS PHOTQGRAPHIQUES A. LUIVIIE 'rnnncn, ASSIGNOB TO socn rrn 1313s PLAQUES ET in E1 sns FILS, or LYON. FRANCE.
  • This invention comprises a photographic film, which, by its construction, allows the v ordinary construction.
  • the film comprises four layers-first, a sensitive gelatin emulsion, secondly, a celluloid support, thirdly, an agglutinant coating soluble in cold water, and fourthly, a layer of nonactinic insoluble gelatin permeable to water upon the back of said agglutinant coating.
  • FIG. l of the accompanying drawings shows a part of the film in perspective, a part of the non-actinic layer being separated from the rest of the film; and Fig. 2 is a section of the film.
  • the layer a is of soluble gelatin permeable to water, and is impregnated with a nonactinic pigment such as carbon, India ink, or a red dye such as anilin derivatives. Glycerimgum or the like may be added to increase its permeability.
  • the layer al is of some agglutinant soluble in cold water such as gum arabic, tra acanth gum, sugar, glucose or the like, an servesv to secure the layers a and 0 together until the developing operation, during which the developing solution permeates the layer a, dissolves the layer 0), and thus releases the said layer a.
  • agglutinant soluble in cold water such as gum arabic, tra acanth gum, sugar, glucose or the like
  • the complete backed film thus construct ed can be used in rolls, or it may be used as v cut films or film-packs without the necessity of using intermediate opaque papers. Moreover halation is more completely prevented than in ordinary ifilms, as the nonactinic layer is in optical contact (through the layer d) with the celluloid support,.
  • a photographici filin consisting of a pellicular celluloid support having a sensitized coating on its face and an agglutinant coating soluble in cold water upon its back, and a pellicular layer of non-actinic insoluble gelatin permeable to water upon the back of said agglutinant coating.
  • a photographic film consisting of a pellicular celluloid support having a sensitized coating on its face and a layer of gum soluble in cold water upon its back, and a pellicular layer of non-actinic insoluble gelatin permeable to water upon the back of said layer of gum.

Description

V. PLANGHON.
PHOTOGRAPHIG FILM. APPLICATION FILED MAY 13, 1907.
1,116,479. Patented Nov. 10, 1914.
' VICTOR PLANCHON, F LYON,
PAPIERS PHOTQGRAPHIQUES. A. LUIVIIE 'rnnncn, ASSIGNOB TO socn rrn 1313s PLAQUES ET in E1 sns FILS, or LYON. FRANCE.
rHo'roeRArHIc riLivi.
, Specification of Letters Patent.
Patented Nov. 10, 1914.
Application and May 13,1907. Serial 1%. 373,437.
To all whom it may concern Be it known that l, Vxcros Pmnonon, a citizen of the Republic of France, residing at Lyon, in France, have invented a certain new and useful Photographic Film, of which the following is a specification.
This invention comprises a photographic film, which, by its construction, allows the v ordinary construction.
usual bulky paper protecting-band used in roll-films to be dispensed with, and inwhich there is much lessvhalation than in films of The film, according to this invention, comprises four layers-first, a sensitive gelatin emulsion, secondly, a celluloid support, thirdly, an agglutinant coating soluble in cold water, and fourthly, a layer of nonactinic insoluble gelatin permeable to water upon the back of said agglutinant coating.
Figure l of the accompanying drawings shows a part of the film in perspective, a part of the non-actinic layer being separated from the rest of the film; and Fig. 2 is a section of the film.
The celluloid support .72 and the emulsion layer 0 together constitute an ordinary film. The layer a is of soluble gelatin permeable to water, and is impregnated with a nonactinic pigment such as carbon, India ink, or a red dye such as anilin derivatives. Glycerimgum or the like may be added to increase its permeability.
The layer al is of some agglutinant soluble in cold water such as gum arabic, tra acanth gum, sugar, glucose or the like, an servesv to secure the layers a and 0 together until the developing operation, during which the developing solution permeates the layer a, dissolves the layer 0), and thus releases the said layer a.
The complete backed film thus construct ed can be used in rolls, or it may be used as v cut films or film-packs without the necessity of using intermediate opaque papers. Moreover halation is more completely prevented than in ordinary ifilms, as the nonactinic layer is in optical contact (through the layer d) with the celluloid support,.
Whereas in the case of the ordinary film there was always an air-space between the celluloid support and the black paper.
What I claim as my invention and desire to secure by Letters Patent is 1. A photographici filin consisting of a pellicular celluloid support having a sensitized coating on its face and an agglutinant coating soluble in cold water upon its back, and a pellicular layer of non-actinic insoluble gelatin permeable to water upon the back of said agglutinant coating.
A photographic film consisting of a pellicular celluloid support having a sensitized coating on its face and a layer of gum soluble in cold water upon its back, and a pellicular layer of non-actinic insoluble gelatin permeable to water upon the back of said layer of gum.
In testimony whereof l have signed my name to this specification in the presence of two subscribing witnesses.
VICTOR PLANCHON.
Witnesses:
THUS. N. Bnownn, .MARIN VAo oN,
US37343707A 1907-05-13 1907-05-13 Photographic film. Expired - Lifetime US1116479A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US37343707A US1116479A (en) 1907-05-13 1907-05-13 Photographic film.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US37343707A US1116479A (en) 1907-05-13 1907-05-13 Photographic film.

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US1116479A true US1116479A (en) 1914-11-10

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