Title:
REACTIVE AZO DYE
Document Type and Number:
Japanese Patent JP3137725
Kind Code:
B2
Abstract:
PURPOSE: To obtain azo dyes having high stability to alkali metals and oxidative detergents and exhibiting enough reactivity in a coloring bath by coupling a ditriazine compd. prepd. by using a specified amine as a starting raw material with a diazonium salt of a specified amine.
CONSTITUTION: The reactive dyes of formula I (wherein m is 0 or 1; A1 is a fiber-reactive radical; A2 is H or a fiber-reactive dye; D1 and D2 are each a phenylenemethyl radical, a naphthylene radical or a naphthylenemethyl radical; K1 and K2 are each a coupling component of the aminonaphthalenesulfonic acid series; and L is a bridge member) are provided. The above described reactive dyes are obtd. by a method wherein e.g. an amine of formula II is diazotized and it is coupled with a naphthalene triazine deriv. of formula III to prepare an intermediate product of formula IV and furthermore, through coupling treatment thereof with a diazonium salt of the amine, an aimed dye of the formula V is obtd.
Inventors:
Hermann Leffler
Manfred Patch
Manfred Patch
Application Number:
JP10292792A
Publication Date:
February 26, 2001
Filing Date:
April 22, 1992
Export Citation:
Assignee:
BASF Akchen Gezel Shaft
International Classes:
C09B62/09; C09B62/04; C09B62/44; C09B62/513; D06P1/38; (IPC1-7): C09B62/513
Domestic Patent References:
| JP5481335A | ||||
| JP2274770A |
Attorney, Agent or Firm:
Toshio Yano (2 outside)