USE OF COBALT-PHTHALOCYANINE-POLYAMINE COMPLEXES FOR THE DYEING AND PRINTING OF TEXTILES

摘要

1344838 Dyeing and printing with cobalt phthalocyanine compounds BAYER AG 28 May 1971 [16 July 1970] 12719/71 Divided out of 1242449 Addition to 1242449 Heading D1B Textile materials of natural or regenerated cellulose are dyed or printed by applying solution of a coordinatively hexavalent complex salt of trivalent cobalt in which four of the six coordination points are occupied by the phthalocyanine ring of double negative charge each of the remaining two points being occupied by a primary, secondary or tertiary polyamine. The complex solution may be in dilute aqueous acid, and the cobalt phthalocyanine dye may be developed by neutral or acid steaming or by dry heating at 130-150‹C or by treating with a reducing bath. Mixtures of cellulose and polyacrylonitrile may be dyed using the above complexes and acid soluble basic dyes, disperse dyes may be used when cellulose-polyester blends are dyed and reactive dyes having acid groups may be added to the solution of the complexes when dyeing cellulose. Many anions are specified for the complex dyes.