Thesaurus: carbon process

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1. n. a process of printing on paper coated with bichromated gelatin containing pigment
2. A printing process depending on the effect of light on bichromatized gelatin. Paper coated with a mixture of the gelatin and a pigment is called carbon paper or carbon tissue. This is exposed under a negative and the film is transferred from the paper to some other support and developed by washing (the unexposed portions being dissolved away). If the process stops here it is called single transfer; if the image is afterward transferred in order to give an unreversed print, the method is called double transfer.
3. A printing process depending on the effect of light onbichromatized gelatin. Paper coated with a mixture of the gelatin anda pigment is called carbon paper or carbon tissue. This is exposedunder a negative and the film is transferred from the paper to someother support and developed by washing (the unexposed portions beingdissolved away). If the process stops here it is called singletransfer; if the image is afterward transferred in order to give anunreversed print, the method is called double transfer.