| 摘要 |
PCT No. PCT/GB93/00274 Sec. 371 Date Jul. 6, 1994 Sec. 102(e) Date Jul. 6, 1994 PCT Filed Feb. 10, 1993 PCT Pub. No. WO93/15914 PCT Pub. Date Aug. 19, 1993A method of enhancing an image (11) provided by thermoplastic marking material on a substrate (4) which material can be thermally activated to take on adhesive properties. The method comprises bringing a transfer medium (7) into contact with the substrate (4) carrying the marking material, the transfer medium including a carrier (3) and a transferable layer (15, 16), the transferable layer being positioned in use between the carrier and the substrate: thermally activating the adhesive property of the marking material; and separating the carrier (13) and substrate (4) whereby areas of the transferable layer containing the activated marking material remain on the marking material, characterized in that the transferable layer exhibits or generates a visible pattern. |
