GB969033A - New phthalocyanine dyestuffs - Google Patents

Abstract

The invention comprises dyes which, in the form of free acids, have the formula <FORM:0969033/C4-C5/1> where Pc is a phthalocyanine radical, M is an amino or substituted amino group, A is a substituted or unsubstituted phenylene group, B is a substituted or unsubstituted alkylene radical, V1, V2 and V3 are each hydrocarbon or heterocyclic radicals or at least two of V1, V2 and V3 are joined or fused together to form with the nitrogen atom a heterocyclic ring or rings, the nitrogen atom being linked through single bonds or through a single bond and a double bond, p is o or 1, a has a value from 1 to 3, b has a value from 1 to 2 and c has a value from 0 to 2 provided the sum of a, b and c does not exceed 4. Each of the sulphonic acid groups and sulphonamide groups in the above formula is directly attached to a carbon atom in the 3- or 4-position of the benz. rings of the phthalocyanine. The dyes are mixtures and the values of a, b and c are statistical values. The heterocyclic rings formed by joining or fusing of V1, V2 and V3 include such rings as piperidine, thiazolidine, 1 - azabicyclo - (3: 2: 2) - nonane, 1: 4 - diazabicyclo - (2: 2: 2) - octane and pyridine rings. The dyes are made by treating a dye of the formula <FORM:0969033/C4-C5/2> where Pc, A, B, M, a, b, c and p have the above meanings and Z is halogen or a sulphate ester group, with an amine of the formula <FORM:0969033/C4-C5/3> where V1, V2 and V3 are as above. The dyes dye and print cellulose textile materials in conjunction with an acid-binding agent or a substance which liberates an acid-binding agent on heating or steaming or in conjunction with a resin-forming composition and acid catalyst. They also dye and print wool, silk, cellulose acetate, polyamides, polyacrylonitriles and aromatic polyesters. The Provisional Specification also refers to dyes of the formula <FORM:0969033/C4-C5/4> where Pc, M, A, B, V1, V2, V3 and p are as above and where d may be O, and to methods for making them. Specifications 708,543, 784,843, 785,629 and U.S.A. Specification 2,219,330 are referred to.