Patent Number: 6,251,825

Title: Re-transfer intermediate sheet for thermal transfer printing

Abstract: A new re-transfer intermediate sheet comprising a supporting substrate having on one side an imageable layer and on the other a backcoat, is provided for thermal transfer printing of an article having a dye-receptive surface, by thermal retransfer. This method of printing comprise the steps of pressing together a dye-donor sheet and the imageable layer of the retransfer intermediate sheet, forming an image in the imageable layer by thermal transfer printing, pressing the thus-formed image-containing layer against the dye-receptive surface of the article, and applying heat to the intermediate sheet to effect retransfer of the image to the dye-receptive layer of the article. To improve protection against the physical conditions experienced in such retransfer process, the backcoat of the new intermediate sheet comprises a polymeric binder and a high loading of protective filler, preferably in amount of 100% to about 250% by weight of the binder.

Inventors: Richardson; Christopher Paul (Whatfield, GB)

Assignee: Imperial Chemical Industries PLC

International Classification: B41M 5/035 (20060101); B41M 5/42 (20060101); B41M 5/40 (20060101); B41M 005/035 (); B41M 005/38 ()

Expiration Date: 06/26/2018