Method and apparatus for continuously forming dye...

D - Textiles – Paper – 06 – P

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D06P 1/16 (2006.01) B41M 5/025 (2006.01) B44C 1/17 (2006.01) D06P 5/28 (2006.01) B29C 45/14 (2006.01) B41M 5/035 (2006.01)

Patent

CA 2442070

A method for forming a dye sublimation image in a substrate with a dye carrier having an image formed thereon of a sublimatic dyestuff is provided. The image of the dye carrier is placed against a first surface of the substrate. The substrate and dye carrier are conveyed along a path with a first part and a second part. A continuous pressure is provided against the first surface of the substrate in the first part and second part of the path and therebetween. The dye carrier is heated to a sublimation temperature in the first part of the path. The dye carrier is then cooled to a depressure temperature in the second part of the path.

L'invention concerne un procédé permettant de former une image par sublimation thermique dans un substrat doté d'un véhiculeur de colorant sur lequel une image de matière colorante pouvant être sublimée est formée. L'image du véhiculeur de colorant est placée contre une première surface du substrat. On déplace ledit substrat et le véhiculeur de colorant le long d'un chemin composé d'une première et d'une seconde parties. On exerce une pression continue sur la première surface du substrat dans les première et seconde parties du chemin et entre celles-ci. Le véhiculeur de colorant est chauffé à une température de sublimation dans la première partie du chemin, puis est refroidit à une température de décompression dans la seconde partie dudit chemin.

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