申请人:HOECHST MITSUBISHI KASEI CO., LTD.
公开号:EP0433693A1
公开(公告)日:1991-06-26
A water-insoluble monoazo dye of the formula:
wherein R is -C₃H₆OCH₃ or -C₂H₄OC₂H₄OH, whereby (1) when R is -C₃H₆OCH₃, the dye has a crystal transformation characterized by an X-ray diffraction pattern (CuKα) showing the strongest peak at an angle of diffraction (2ϑ) of about 6.6° and three weak peaks at about 11.4°, 31.6° and 33.8°, and (2) when R is -C₂H₄OC₂H₄OH, the dye has a crystal transformation characterized by an X-ray diffraction pattern (CuKα) showing three strong peaks at angles of diffraction (2ϑ) of about 6.2°, 14.5° and 25.2° and two intermediate peaks at about 18.2° and 19.4°.
一种水不溶性单偶氮染料,其式如下
其中 R 为-C₃H₆OCH₃或-C₂H₄OC₂H₄OH,其中 (1) 当 R 为-C₃H₆OCH₃时、该染料具有一种晶体转变,其特征为 X 射线衍射图样(CuKα)显示在衍射角(2ϑ)约 6.6°处为最强峰,在约 11.4°、31.6°和33.8°处的三个弱峰,以及(2)当R为-C₂H₄OC₂H₄OH时,染料具有晶体转变,其特征为X射线衍射图样(CuKα)显示衍射角(2ϑ)约为6.2°、14.5°和25.2°处的三个强峰以及约为18.2°和19.4°处的两个中间峰。