ABSTRACT
This chapter discusses double transfer and other types of transfer methods that are used when making duotone and full color images. In this type of work one or more carbon layers are developed on some type of temporary plastic support, allowed to dry, and then transferred to a final paper support. Carbon prints composed of two or more layers, such as duotones and full color CMY and CMYK color prints, should not be developed directly with single transfer on natural rag papers, as the lack of dimensional stability will cause registration problems that will result in considerable loss of sharpness. The chapter also discusses pin registration, which provides the means to assemble in registration two or more carbon layers on a dimensionally stable support. Historically, double transfer was used in carbon printing primarily to obtain correct orientation of the image when exposing through the thick glass plate negatives that were used in the early days of photography.
