carbon process

American  

noun

1. a method of making photographic prints by the use of a pigment, as carbon, contained in sensitized gelatin.

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carbon process British  

noun

1. a photographic process for producing positive prints by exposing sensitized carbon tissue to light passing through a negative. Washing removes the unexposed gelatine leaving the pigmented image in the exposed insoluble gelatine

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Etymology

Origin of carbon process

First recorded in 1875–80

Example Sentences

The summary of the new system is as follows: To obtain from negatives reliefs on glass similar to transparencies by the carbon process, but modified in the quantity of materials used.

From Scientific American, Vol. XLIII.?No. 1. [New Series.], July 3, 1880 A Weekly Journal Of Practical Information, Art, Science, Mechanics, Chemistry, And Manufactures by Various

Effects heretofore to be had only by the laborious carbon process can now be secured by any amateur photographer with this new paper.

From Kodaks and Kodak Supplies 1914 by Canadian Kodak Company

The Negatives.—For the carbon process the negatives should be intenser than those intended for printing out on silver paper.

From Photographic Reproduction Processes by Duchochois, Peter C.

John Robert Johnson’s carbon process double transfer patented.

From The Evolution of Photography With a Chronological Record of Discoveries, Inventions, etc., Contributions to Photographic Literature, and Personal Reminescences Extending over Forty Years by Werge, John

It is sold for treatment in factories by the sulphide of carbon process, and by this method yields from seven to nine per cent. of oil, of course suitable only for manufacturing purposes.

From Scientific American Supplement, No. 443, June 28, 1884 by Various