Permanent ink jet imaging of cellulosic textile material

D - Textiles – Paper – 06 – P

Patent

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D06P 3/60 (2006.01) D06P 1/52 (2006.01) D06P 1/607 (2006.01) D06P 1/649 (2006.01) D06P 1/651 (2006.01) D06P 1/673 (2006.01) D06P 5/00 (2006.01) D06P 5/30 (2006.01) D06P 3/62 (2006.01) D06P 3/66 (2006.01)

Patent

CA 2213377

A pretreatment solution for a cellulosic fabric to be printed, allows the printed fabric to maintain color brightness and image permanence. The pretreatment solution comprises a mixture of water, a salt, and a hydroxyalkyl imine derivative. The hydroxyalkyl imine derivative is selected from the group consisting of branched polyethyleneimine polymer, diphenylguanidine, hydroxyethyl and hydroxypropyl. In a preferred embodiment of the present invention, the branched polyethyleneimine polymer comprises ethoxylated polyethyleneimine.

Une solution de prétraitement pour un tissu cellulosique à imprimer permet de maintenir la vivacité des coloris et assure une permanence de l'image sur le tissu imprimé. La solution de prétraitement comprend un mélange contenant de l'eau, un sel et un dérivé hydroxyalkylimine. Le dérivé hydroxyalkylimine est choisi parmi le groupe constitué d'une polyéthylèneimine ramifiée, de diphénylguanidine, d'hydroxyéthyle et d'hydroxypropyle. Dans une application préférée de la présente invention, la polyéthylèneimine ramifiée comprend une polyéthylèneimine éthoxylée.

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