Process for the treatment of cellulose fibres

Abstract

The present invention relates to a process for the treatment of lyocell cellulose fibers which comprises treating the lyocell cellulose fibers with at least one compound of the formula wherein R1 and R2 are each independently of the other halogen or a sulfo-substituted phenylamino radical, at least one of the two substituents R1 and R2 being halogen, R3 and R4 are each independently of the other unsubstituted phenyl or phenyl substituted by C1-C4alkyl, C1-C4alkoxy, acylamino, sulfo, —SO2—CH═CH2, —SO2—CH2CH2—OSO3H, —NH—CO—CBr═CH2 or by —NH—CO—CHBr—CH2Br, A1 and A2 are each independently of the other —O—, —S— or —NR5—, wherein R5 is hydrogen or C1-C4alkyl, A3 and A4 are each independently of the other —O—, —S— or —NR5—, or —A3—R3 is halogen and/or —A4—R4 is halogen, wherein R5 is hydrogen or C1-C4alkyl and B is an aromatic bridge member, or —A1—B—A2— is a bridge member of the formula —NH—CH2—CH(CH3)—NH—, with the proviso that the compound of formula (1) must contain at least one dihalotriazine radical, at least two monohalotriazine radicals or at least one substituent, but preferably at least two identical or different substituents, from the group consisting of —SO2—CH═CH2, —SO2—CH2CH2—OSO3H, —NH—CO—CBr═CH2 and —NH—CO—CHBr—CH2Br.

Dependencies are inferred from the claim text.