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

On the 5th of April, 1864, I attended a meeting of the Photographic Society at King’s College, and heard Mr. J. W. Swan read a paper on his new patent carbon process.

From Project Gutenberg

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 Project Gutenberg

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

From Project Gutenberg

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

From Project Gutenberg

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 Project Gutenberg