US1184772A - Gelatinous film and process of forming the same. - Google Patents

Gelatinous film and process of forming the same. Download PDF

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Publication number
US1184772A
US1184772A US7312816A US7312816A US1184772A US 1184772 A US1184772 A US 1184772A US 7312816 A US7312816 A US 7312816A US 7312816 A US7312816 A US 7312816A US 1184772 A US1184772 A US 1184772A
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Prior art keywords
film
soap
aqueous solution
gelatinous
forming
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US7312816A
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Eugene Adolphe Pin
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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F3/00—Colour separation; Correction of tonal value
    • G03F3/10—Checking the colour or tonal value of separation negatives or positives

Definitions

  • a film of gelatin, or other substance adapted to form a filmwhen dried can be formed on a support, for instance of paper, to which the film will adhere so as to enable it to be subjected to the manipulations required in photography; but from which it can be nevertheless easily detached, so that the film thus separated from its support, can be used as a transparency.
  • the film will be taken by 'way of example to be a photographic film, and the support, a sheet of paper; but the invention is not limited to a photographic film or a paper support.
  • Soap suds are obtained by preparing hot (at the boiling temperature) an aqueous solution of any desired soap (soda lye' and any oil) ,preferably'a soap made from cocoanut oil, with or without the addition of foreign substances such as "resins and waxes.
  • the soap is'first dissolved in a little water, and after it. is completely dissolved, such a quantity of water is added that the final product contains one liter of water per 8 grams of soap.
  • Paper of the desired size and strength is then taken, and the solution obtained as described is spread thereon preferably by means of ordinary emulsioning apparatus. Then it is left to dry or it is dried. Then on the said paper the film is formed and soap is preferably incorporated with the film-forming-substances.
  • the various operations can be advantageously carried out in the following manner :-1000 grams of gelatin are taken and soaked cold in 8000 grams of water. The product thus obtained is placed in a water bath to raise its temperature to about 80 Q As soon as the gelatin is dissolved, a solution is added to it of 20 grams of 6% chrome alum and 200 grams of water. The mixture thus obtained is maintained in a Specification of Letters Patent.
  • the invention is not limited to the methods described, but comprises for instance using for a substratum, wood, glass or fabric instead of paper, as well as employing for the film, acetate of cellulose, mucilage, collodion or varnish.
  • a process of forming a gelatinous film on a temporary support consisting in coating the support with an aqueous solution of soap, then depositing thereon a mixture of a gelatinous substance and an aqueous so- 4.
  • a process of forming a gelatinous film on a temporary-paper support consisting in coating'the support with an aqueous solution ofsoap made from cocoanut oil, then depositing thereon a mixture of gelatin,
  • a film on a temporary support comprising'a gelatinous substance deposited on the temporary supportpreviously coated with ⁇ an aqueoussolution of soap.
  • ' hotographic film on 'a' temporary support comprising a gelatinous substance with an addition of an aqueous solution of soap, deposited on the temporary support previously coated with an aqueous solution of soap, and a sensitive layer deposited on the gelatinous-film 9.
  • a photographic film on a temporary support comprising a mixture of gelatin and glycerin, with an addition of an aqueous solution of soap made from cocoanut oil deposited on a temporary paper support previously coated with an aqueous solution of soap made from cocoanut oil, and a sensitive layer deposited on the gelatinous film.
  • a film on a temporary support comprising a gelatinous substance with an addition of an aqueous solution of soap, deposited on a temporary support previously coated with an aqueous solution of soap, with resinous substances incorporated.

Description

tirrnn rimns ram 1;:
EUGENE ADGLCPHE PIN, OF GLICHY, CE.
GELATINOUS IEILM AND PROCESS OF FORMING THE SAME.
nieagma.
Ito Drawing.
.which a film of gelatin, or other substance adapted to form a filmwhen dried, can be formed on a support, for instance of paper, to which the film will adhere so as to enable it to be subjected to the manipulations required in photography; but from which it can be nevertheless easily detached, so that the film thus separated from its support, can be used as a transparency.
In the following description the film will be taken by 'way of example to bea photographic film, and the support, a sheet of paper; but the invention is not limited to a photographic film or a paper support.
Soap suds are obtained by preparing hot (at the boiling temperature) an aqueous solution of any desired soap (soda lye' and any oil) ,preferably'a soap made from cocoanut oil, with or without the addition of foreign substances such as "resins and waxes. The soap is'first dissolved in a little water, and after it. is completely dissolved, such a quantity of water is added that the final product contains one liter of water per 8 grams of soap. These proportions are not, however, absolutely essential, and are given merely by way of example. 4
Paper of the desired size and strength is then taken, and the solution obtained as described is spread thereon preferably by means of ordinary emulsioning apparatus. Then it is left to dry or it is dried. Then on the said paper the film is formed and soap is preferably incorporated with the film-forming-substances.
The various operations can be advantageously carried out in the following manner :-1000 grams of gelatin are taken and soaked cold in 8000 grams of water. The product thus obtained is placed in a water bath to raise its temperature to about 80 Q As soon as the gelatin is dissolved, a solution is added to it of 20 grams of 6% chrome alum and 200 grams of water. The mixture thus obtained is maintained in a Specification of Letters Patent.
Patented May so, rare.
Application filed January 20, 1916. Serial No. 73,128.
liquid state; and at the expiration of about .half an hour, first a solution is stirred in of 166 grams of soap and 500 grams of water, and then 100 cubic centimeters of glycerin at 28 are added. This composi- -t1on is then spread on the previously presioning apparatus.
The whole is dried or left to dry, and the said paper will be found to be covered with a film which adheres to it, but is nevertheless readily detachable. These various operations are completed by the spreading of a photographic sensitive layer, 1n the usual manner. Thus a photographic paper is obtained With a film, which, as proved by experlence, offers, from the point of view pared paper, preferably by ordinary emul- 'of adhesion to the paper, very-special qualities. It can be subjected to any manipulatlons to which photographic proofs have to be subjected without risk of becoming acci dentally detached.
Obviously the invention is not limited to the methods described, but comprises for instance using for a substratum, wood, glass or fabric instead of paper, as well as employing for the film, acetate of cellulose, mucilage, collodion or varnish.
I claim: I 1. A process of forming a gelatinous film ona temporary support, consisting in coating the support with an aqueous solution of soap and then depositing thereon a gelatinous substance.
2. A process of forming a gelatinous film on a temporary support, consisting in coating the support with an aqueous solution of soap, then depositing thereon a mixture of a gelatinous substance and an aqueous so- 4. A process of forming a gelatinous film on a temporary-paper support, consisting in coating'the support with an aqueous solution ofsoap made from cocoanut oil, then depositing thereon a mixture of gelatin,
glycerin and an aqueous solution of soap nous substance and an aqueous solution of 10 soap. r 1
'6. A film on a temporary support, comprising'a gelatinous substance deposited on the temporary supportpreviously coated with} an aqueoussolution of soap. A film, on a temporary support comprlsing'a gelatinous substance with an addition vof an aqueous solution of soap, def posited on the temporary support previously coated with an aqueous solution of soap. 1
' hotographic film on 'a' temporary support, comprising a gelatinous substance with an addition of an aqueous solution of soap, deposited on the temporary support previously coated with an aqueous solution of soap, and a sensitive layer deposited on the gelatinous-film 9. A photographic film on a temporary support, comprising a mixture of gelatin and glycerin, with an addition of an aqueous solution of soap made from cocoanut oil deposited on a temporary paper support previously coated with an aqueous solution of soap made from cocoanut oil, and a sensitive layer deposited on the gelatinous film.
10. A film on a temporary support, comprising a gelatinous substance with an addition of an aqueous solution of soap, deposited on a temporary support previously coated with an aqueous solution of soap, with resinous substances incorporated.
In testimony whereof I have signed this specification in the presence of two subscribing Witnesses.
EUGENE ADOLPI-IE PIN.
Witnesses:
EMILE LEDRET, CHAS. P. PRESSLY.
US7312816A 1916-01-20 1916-01-20 Gelatinous film and process of forming the same. Expired - Lifetime US1184772A (en)

Priority Applications (1)

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US7312816A US1184772A (en) 1916-01-20 1916-01-20 Gelatinous film and process of forming the same.

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US7312816A US1184772A (en) 1916-01-20 1916-01-20 Gelatinous film and process of forming the same.

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2686122A (en) * 1947-03-07 1954-08-10 Harold C Purdy Photographic light-sensitive element
US2824000A (en) * 1951-12-06 1958-02-18 Eckardt Curt Photographic stencil particularly for diffusion printing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2686122A (en) * 1947-03-07 1954-08-10 Harold C Purdy Photographic light-sensitive element
US2824000A (en) * 1951-12-06 1958-02-18 Eckardt Curt Photographic stencil particularly for diffusion printing

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