Improved polymer-grafted cotton fibers and products

D - Textiles – Paper – 06 – M

Patent

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Details

D06M 14/04 (2006.01) D06M 14/22 (2006.01) D06M 15/643 (2006.01) D06P 5/08 (2006.01)

Patent

CA 2442836

A solution for forming a graft substrate containing a graft initiator, a catalyst for activating the graft initiator, a polymerizable silicon- containing material, and at least two additional prepolymers, each of the silicon-containing material and the prepolymers which includes a functional group for reaction with an activated site on the substrate for grafting a copolymer thereto or with an activated site on the grafted copolymer. The treated fiber exhibits excellent crockfastness, color fastness, and abrasion resistance, strength, and has a soft hand. The composition is optimized for printed and unprinted cotton and poly-cotton. In one embodiment, the treated cotton is stretchable and resilient. In another embodiment method of printing on cotton is included.

L'invention concerne une solution utilisée pour former un substrat greffé contenant un amorceur de greffe, un catalyseur pour activer l'amorceur de greffe, un matériau contenant du silicium polymérisable et au moins deux prépolymères supplémentaires, le matériau à base de silicium et les prépolymères contenant un groupe fonctionnel devant réagir avec un site activé sur le substrat pour y greffer le copolymère, ou avec un site activé sur le copolymère greffé. La fibre traitée présente d'excellentes propriétés en terme de solidité au frottement, de solidité de la couleur, de résistance à l'abrasion, de dureté, et de douceur au toucher. Par ailleurs, cette composition est optimisée pour le coton imprimé et non imprimé, ainsi que pour le polycoton. Dans l'un des modes de réalisation, le coton traité est extensible et élastique. Dans un autre mode de réalisation, l'invention concerne un procédé d'impression sur coton.

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