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

A new carbon process by M. Carey Lea was published this year.

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

I think myself it would have been wiser to have adhered to his original intention; however, it was left to others to do more to advance the carbon process than he did.

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

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.