POLYESTER FILM FOR THERMAL TRANSFER INK RIBBON

PROBLEM TO BE SOLVED: To provide a polyester film for a thermal transfer ink ribbon which exhibits an extremely small elongation and shrinkage of the ribbon even at a high temperature where a high tension is applied on the thermal transfer ink ribbon, and is suitable for preventing wrinkles from bei...

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Bibliographische Detailangaben
1. Verfasser:	YONEDA ISAO
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COLOUR PRINTING COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING LINING MACHINES MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES STAMPS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING TYPEWRITERS WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a polyester film for a thermal transfer ink ribbon which exhibits an extremely small elongation and shrinkage of the ribbon even at a high temperature where a high tension is applied on the thermal transfer ink ribbon, and is suitable for preventing wrinkles from being generated during thermal transfer. SOLUTION: The polyester film for the thermal transfer ink ribbon is characterized in that the pore volume is 0.50-1.50 ml/g, a porous silica particle with a mean particle diameter of 2.6-4.5 μm with 0.04-0.15 wt.% is incorporated, and the area coefficient of variation is in a range of -150 to 150. COPYRIGHT: (C)2009,JPO&INPIT