PROCESS FOR TRANSFER DYEING OR PRINTING
1459330 Transfer dyeing and printing SUBLISTATIC HOLDING SA 10 May 1974 [11 May 1973] 20807/74 Heading D1B Substrates to be dyed or printed are wound up with a transfer (temporary carrier e.g. paper) having thereon a vaporisable or sublimable substance and are heated whilst in the wound up form to effect the transfer to the substrate. The substrate, temporary carrier and a heating belt adapted to be heated electrically may 'be wound up together and the heating belt heated electrically. Alternatively the heating is effected in a hermetically sealed chamber. The substrate may be preheated before being wound up or may be heated during the winding up process. The transfer may be effected under reduced pressure and paper is the preferred transfer. Substrates include polyacrylonitrile, polyethylene terephthalate, and synthetic polyamides for which basic, disperse and acid dyes are used.