US1538351A - Coloring photographs - Google Patents

Description

Patented May 19, 1925. V

v UNITED STATES PATENT: OFFICE.

CLARENCE aunomn amnnson, or HAVRE, ivionraim.

7 concerns PHOTOGRAPHS.

N'o Drawing. Application filed August 2, 1922, Serial No 579,244. Renewec l April 1, 1925.

To all whom it may concern:

Be it known that I, CLARENCE RUDOLPH REmRsoN, a citizenof the UnitedStates, residing'atHavre, in the county of Hill and cation.

This invention relates to the, decoration of photographs and particularly to the production of oil colored photographs. Among other features the invention is directed to photographs with oil colors.

One purpose of the invention is to reduce thetime necessary to complete the application of oil colorsto a photographic print.

vAnother'purpose is to make possible a more J even blending of oil colors than has heretofore been known. Another purpose is to provide a lustrous finishfor photographlc prints without destroying the soft tone of the print. Finally the invention enablesthe artist to work rapidly Without the smearing OflOll colors, and makes it possible to complete theWork in a remarkably short time.

Heretofore to complete the coloring of an average sized photographic print it has not tograph in fifteen or twenty minutes, and

the work thus completed will dry within seven .to ten hours.

ing, and could be dry by morning, when they are in. condition for mounting and delivery to the purchaser.

I The inventionincludes three chief essen-' tial featureswhich areas follows. 7

.First, the materials and the process of preparing the materials into a composition for. application directly to the photographic rint'. I

. paint coating.

Third, the materials andtheprocess of Thus a dozen photo graphs could be colored in oil .in one evenpreparing the mixture of the same for the outer. and finalprotective coating which is applied to the decorative paint coats.

The details of these three features will now be described.

The first feature, which includes the prep aration and materials for the initial treating material, relates to a liquid, which,

when properly applied, produces an oil; body surface upon photographic prints,

which surface is suitable for thereception and blending thereon of artists oil colors the use of particular materials and to the] steps in the processby which the materials are prepared,and to the particular sequence "in which the materials are used in coloring such as are usually sold in tubes.

To make the liquid of feature one, the following ingredients, in th following proportions, are mixed inaccordance with the steps specified. 3 parts of raw linseed oil,

3 parts of Japanese drier, and 2 parts of commercial ether are used. The Japanese drier is added to the oil and thoroughly mixed. To the resultant product the specified proportion of ether is added, and the resultant material is thoroughly mixed.

Care should be taken to use substantially the proportions and sequence specified because a perfectly acting solution may be prepared in this way, but if the proportions and order of treatment arematerially disregarded, undesirable precipitates may be formed and the materials spoiled. V

The treatment of the photographic print should be conducted substantially according to the following details. The solution,prepared in accordance with feature one, should be applied to the surface of the print with atuft of cotton or some other equally soft material, and any, surplus solution, which has, not been absorbed by the emulsion on the print must beremoved by rubbing the damp surface with a piece of dry soft cotton fabric. H graphic print in substantially the following manner. 'Theether of the solution permits the introduction into the emulsion of the print "of the required quantity of oil and Japanese drier. Probably the action is one in which the ether opens the pores of the v v r e V drier, or at least permits a unified combina- Second, the process of preparing the pho;

tion of the oiland; drier with the material of the emulsion. The ultimate efiect, re-

gardless of the theory of the action, is that thematerial sizes the emulsion, or so prepares it, as to make possible the application.

and blending thereon of artists oil colors The solution acts upon the photo-' in tubes evenly, smoothly, and without smearing, all to a degree of perfection heretofore not possible before the use of the particular solution mentioned. When oil colors are applied to a print or to an emulsion to which oil has been applied in a manner different from that above described, the application of the material is not even or smooth, the oil rubs off and smears, and the oil colors also tend to rub off and smear.

The Japanese drier, probably augmented by th action of the ether, serves to make possible unusual rapidity on the part of the artist who is applying the oil colors because the artist is enabled to have the oil colors under control at all times, and also because the completed work dries rapidly. The drying qualities are just such. as to cause the colors to take hold without running or smearing, and yet the colors do not set so rapidly as to take the control of the work out of the artists hands. 7

Feature three, relating to the protective coating, will now be described. This material is intended for use as a protective lustre producing material for application directly over the oil colored photograph. The object of this feature of the invention is to provide a liquid, which when properly applied to acompleted oil colored photograph, adds the desired lustre and gives to it an unnoticeable, even, protective covering. To make this solution 5 parts of raw linseed oil and 1 part of Japanese drier are thoroughly mixed. The material is applied to the decorative paint coat on the photo graphic print by the use of a tuft of cotton, and any surplus solution must be removed by rubbing gently with a similar dry tuft of cotton. The effect of the application of the protective coating is the production of a rapidly'drying, unnoticeable coating which protects against dust, dirt, and the fading of the color coat. The desires lustre may thus be added to the completed workof the color coat without destroying the softer tones of the colored photograph. The same advantageous resultsobtained by using the protective coat may be accomplished by using the solution upon black and white, or sepia prints, as have been described by using the material over prints finished in oil colors.

The various features of this invention may be used, and the materials of each of the solutions may be applied effectively, in the treatment of matt, semi-matt, or gloss photographic prints, as well as in the 1naking of Doretypes.

By following the details of the present invention a photographic print may be colored and the coloring protected so that the final product has such a perfect blending of color that the lines of the colors and the material of the protective coat are imperceptible. In addition to the proper blending, the time for the coloring is reduced to one-fifth to one-eighth of the time ordinarily required prior to the use of the initial treatment solution.

I claim:

1. The process of treating photographs to prepare them for coloring which process comprises treating the emulsion of a developed positive print with a coating of a material which includes raw linseed oil, Japanese drier, and ether.

2. The process of preparing colored photographs which process comprises treating the emulsion of a developed positive print with a primary coating of a material which includes raw linseed oil, Japanese drier, and ether, removing excess material of said primary coating, and applying over said primary coating a decorative oil paint coat.

3. The process of preparing colored photographs which process comprises treating the emulsion of a developed positive print with a primary coating of a. material which includes an oil, a liquid drier, and ether, applying over said primary coating a decorative oil paint coat, and coating said decorative coat with an outer liquid material which includes an oil and Japanese drier.

4. The process of preparing colored photographs which process comprises treating the emulsion of a developed positive print with a primary coating of a material which includes raw linseed oil, Japanese drier, and ether, removing excess material of said primary coating, applying over said primary coating a decorative oil paint coat, andcoating said decorative coat with an outer liquid material which includes an oil and Japanese drier.

5. The process of preparing colored photographs which process comprises treating the emulsion of a developed positive print with a primary coating of a material which includes raw linseed oil, Japanese drier, and ether, applying over said primary coating a decorative oil paint coat, and coating said decorative coat with an outer liquid material which includes an oil and Japanese CIlBI'.

photographs which process comprises treating the emulsion of a developed positive print With a primary coating of a material which includes an oil, a liquid drier, and ether, applying over said primary coating a decorative oil paint coat, and coating said decorative coat with an outer liquid material which includes 5 parts of raw linseed oil and 1 part of Japanese drier.

7. The process of preparing colored photographs which process comprises treating the emulsion of a developed positive 6. The process of preparing colored.

print with a primary coating of a material which includes an oil, a liquid drier, and ether, removing excess material of said primary coating, applying over said primary coating a decorativeoil paint coat, and coating said decorative coat with an outer liquid material which includes 5 parts of raw linseed oil and 1 part of Japanese drierJ 8. The process of preparing colored photographs which process comprises treatin the emulsion of a developed positive pr nt with aprimary coating of a material which includes raw linseed oil, J apanese dr er, and ether, removing excess materlal 15 of said primary coating, and immediately ture.

applying over said primary coating a decoi rative oil paint coat.

9. The prints which process comprises applylng to a photograph a mixture of an oil, a liquid drier, and ether. 7

10. The process of preparing colored photographs, which process comprises treatin the emulsion of a developed positive prlnt with a mixture of an oil, a liquid drier,

rocess of treating photographic and ether, and applying to the print so treated a decorative coloring medium.

In testimony whereof I afiix my signa- CLARENCE RUDOLPH REIERSON.