diffusion transfer

The diffusion-transfer process is a photographic method used for copying documents. It involves developing an image, then transferring silver salts from undeveloped areas to a receiving paper. This transferred image is then developed to create a facsimile of the original document.1

Materials derived from instant-picture diffusion-transfer processes have also been adapted for color print production. While more expensive than traditional methods, they are simpler to process, often requiring just an alkaline bath and a water rinse, with the entire sequence taking about five to ten minutes.2

In textile printing, heat transfer printing is a method where a pattern is printed on paper with specific dyes. This paper is then applied to the fabric using heat, transferring the pattern. This technique allows for new possibilities, such as creating halftone effects.3