Reactive dyes, a process for their preparation and their use

Reactive dyes, a process for their preparation and their use

  • CN 1,720,299 A
  • Filed: 11/24/2003
  • Published: 01/11/2006
  • Est. Priority Date: 12/02/2002
  • Status: Active Grant
First Claim
Patent Images

1. the reactive dyestuffs of a formula (1)(1),

  • WhereinR 1Be optional substituted C 1-C 4Alkyl, R 2Be halogen, C 1-C 4Alkyl, C 1-C 4Alkoxyl group or sulfo group, Z 1Be the group of following formula, -SO 2-Y (2a),

    -CO-NH-(CH 2) k-SO 2-Y (2b),

    -NH-CO-CH (Hal)-CH 2-Hal (2c), or -NH-CO-C(Hal)=

    CH 2 (2d),

    WhereinHal is a chlorine or bromine,Y is vinyl or group-CH 2CH 2-U, and U is the group that can leave away under the alkaline condition, K is 2,3,4,5 or 6,N is 0,1 or 2, andM is 0 or 1.

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