Any process by which a design is transferred from paper to another substrate. Several techniques have been used, viz melt-transfer, film-release, and wet-transfer, but vapour transfer (sublimation transfer) is the most important. Selected disperse dyes transfer in vapour form to thermoplastic fibres when the printed paper and fabric are brought into close contact in a transfer press at 170°-220°C.
Note: Foreign synthetic fibres in wool fabrics can be dyed by vapour transfer of disperse dye from polyester fabric (Troy process).
Textile Resource (http://www.textile.org.uk)