Method for treating cellulosic shaped bodies

Details Method for treating cellulosic shaped bodies Method for treating cellulosic shaped bodies

D - Textiles, Paper

06

M

D06M 13/358 (2006.01)

Patent

CA 2274819

The invention relates to a method for treating cellulosic shaped bodies which are formed from a solution of cellulose in an aqueous tertiary amine oxide, especially fibres. The shaped bodies are brought into contact with an aqueous solution of a textiles auxiliary in alkaline conditions, said textiles auxiliary supporting two reactive groups. The invention is characterised in that a compound of formula (I), wherein X represents halogen, R-H or an ionic radical and n-0 or 1, or a salt of this compound is used as the textiles auxiliary. The invention also relates to the use of compounds of this formula to reduce the tendency to fibrillate and increase the UV-absorption of solvent-spun fibres.

L'invention concerne un procédé pour le traitement de corps moulés cellulosiques, formés à partir d'une solution de cellulose dans un aminoxyde tertiaire aqueux, en particulier des fibres. Dans le procédé selon l'invention, les corps moulés sont mis en contact, en milieu alcalin, avec une solution aqueuse d'un produit auxiliaire textile comportant deux groupes réactifs. L'invention est caractérisée en ce qu'on utilise, comme produit auxiliaire textile, un composé de formule (I) ou un sel de ce composé. Dans la formule (I), X représente halogène, R représente H ou un reste ionique et n est égal à 0 ou à 1. L'invention concerne en outre l'utilisation de composés de formule (I) pour réduire la tendance à la fibrillation ainsi que pour augmenter l'absorption des rayons ultraviolets des fibres tissées au solvant.

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