公开(公告)号：US3888862A

公开(公告)日：1975-06-10

申请号：US26795872

申请日：1972-06-30

Applicant: HOECHST AG

Inventor： MEININGER FRITZ ,  KOHLHAAS FOLKER

IPC: C09B57/14 ,  C09B62/002 ,  C07D35/00

CPC classification number: C09B57/14 ,  C09B62/0025

Abstract: Novel water-soluble, reactive xanthene dystuffs of the

IN WHICH R1 and R2, being identical or different, each represent hydrogen, chlorine, bromine, lower alkyl or lower alkoxy, X represents oxygen, sulfur or

AND M REPRESENTS A NUMBER FROM 1 TO 3, SAID DYSTUFFS BEING HIGHLY SUITABLE FOR THE DYEING OR PRINTING OF LEATHER, WOOL, SILK, POLYAMIDE OR POLYURETHANE FIBRES, ESPECIALLY OF CELLULOSE FIBRES, THE DYEINGS OR PRINTS OBTAINED ON CELLULOSE FIBRES WITH THE SAID DYESTUFFS BEING IN PART DISTINGUISHED BY HIGH BRILLIANCY AND GOOD FASTNESS PROPERTIES, PARTICULARLY BY GOOD FASTNESS TO WET PROCESSING.