Printable heat transfer material having cold release properties

Details Printable heat transfer material having cold release properties Printable heat transfer material having cold release properties

B - Operations, Transporting

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B41M 5/00 (2006.01) B41M 3/12 (2006.01) B41M 5/025 (2006.01) B41M 5/035 (2006.01) B41M 5/41 (2006.01) B41M 5/42 (2006.01) B41M 5/52 (2006.01) B44C 1/17 (2006.01) B41M 5/40 (2006.01) B41M 7/00 (2006.01)

Patent

CA 2209704

A printable heat transfer material having cold release properties, which material includes a flexible first layer having first and second surfaces. The first layer typically will be a film or a cellulosic nonwoven web. A second layer overlays the first surface of the first layer and includes a thermoplastic polymer, such as a hard acrylic polymer or a poly(vinyl acetate). A third layer overlays the second layer and includes a thermoplastic polymer which melts in a range of from about 65°C to about 180°C. The first layer may be a cellulosic nonwoven web, such as a latex-impregnated paper. The thermoplastic polymer of which the second layer is composed may have a glass transition temperature of at least about 25°C. The second layer also may include an effective amount of a release-enhancing additive, such as a divalent metal ion salt of a fatty acid, a polyethylene glycol, or a mixture thereof. The third layer may include a film-forming binder, which binder may include a powdered thermoplastic polymer. For an ink jet printable heat transfer material, a fourth layer may overlay the third layer, which fourth layer includes a film-forming binder and a powdered thermoplastic polymer. If desired, a fifth layer may overlay the second layer, thereby being located between the second layer and the third layer. The fifth layer may include a film-forming binder which melts in a range of from about 65°C to about 180°C.

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