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 Artigues process is an adaptation for the purposes in question of the carbon process invented by Poitevin.

From Photographic Reproduction Processes by Duchochois, Peter C.

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

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

As in the carbon process, it is necessary to place a border of black paper at the back of the negative, and to cut the sensitized tissue a little larger than the opening.

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

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.