THERMAL TRANSFER PRINTING

A retransfer intermediate sheet for receiving an image to be printed onto an article by thermal retransfer comprises a substrate; and an image-receiving coating on one side of the substrate for receiving an image by printing of dye-containing ink, the coating comprising a fluid-absorbing layer and a...

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Bibliographische Detailangaben
Hauptverfasser:	MARTINO ANTHONY JOSEPH, BECK NICHOLAS CLEMENT
Format:	Patent
Sprache:	eng
Schlagworte:	COLOUR PRINTING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS LINING MACHINES PERFORMING OPERATIONS PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES STAMPS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	A retransfer intermediate sheet for receiving an image to be printed onto an article by thermal retransfer comprises a substrate; and an image-receiving coating on one side of the substrate for receiving an image by printing of dye-containing ink, the coating comprising a fluid-absorbing layer and a superposed dye management layer comprising functionalised polyvinyl alcohol and/or an ionic polymer. The dye management layer functions to reduce back diffusion and to increase dye transfer efficiency, resulting in production of printed images of improved optical density. The sheet can be heat-deformable, and finds particular use in printing on 3D articles, e.g. being heated and vacuum formed to conform to an article. The invention also covers a method of printing and an article bearing a printed image.