公开(公告)号：US3697216A

公开(公告)日：1972-10-10

申请号：US3697216D

申请日：1971-02-10

Applicant: HOECHST AG

Inventor： HERTEL HASSO ,  GEHRE KURT ,  LOWENFELD RUDOLF ,  KOSUBEK UWE

IPC: D06P3/12 ,  D06P3/68

CPC classification number: D06P3/68 ,  D06P3/12

Abstract: PROCESS FOR THE PRODUCTION OF WATER-INSOLUBLE AZO DYESTUFFS ON TEXTILE MATERIAL OF CELLULOSE OR PROTEIN FIBERS BY IMPREGNATION WITH A SUBSTANTIVE AZO COMPONENT AND DEVELOPING WITH A DIAZONIUM COMPOUND OF AN AROMATIC AMINE, WHEREIN THE DEVELOPING STAGE IS CARRIED OUT BY ADDING THE DIAZONIUM COMPOUND AS WELL AS ALKALI BINDING AGENTS TO THE IMPREGNATION BATH IN THE PRESENCE OF A WETTING OR DISPERSING AGENT.