Stable modification of a disazo dyestuff

Details Stable modification of a disazo dyestuff Stable modification of a disazo dyestuff

C - Chemistry, Metallurgy

09

B

260/178, 260/164

C09B 31/02 (2006.01) C09B 43/44 (2006.01) C09B 67/00 (2006.01)

Patent

CA 1065308

STABLE MODIFICATION OF A DISAZO DYESTUFF Abstract of the disclosure: The modification ? being stable under dyeing conditions of the dyestuff of the formula Image characterized by an X-ray diffraction diagram with the charac- teristic reflexes at the following glance angles a (Figure 3): angle 0 4.0° 5.0° 8.15° 12.7° 13.5° intensity 0.31 0.38 1.00 0.92 0.63 said modification allowing dyeings being fast to rubbing ob- tained on textile wound packages of synthetic and semi-synthetic fibrous materials.

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