Patent GB-242867-A (GB)
Title: Manufacture of new dyestuffs
Filed: 1925-03-30
Abstract: Insoluble azo dyes are produced either in substance or on the fibre by coupling unsulphonated diazo, tetrazo, diazoazo, &c. compounds with the p-oxynaphthyl-1 : 3 : 5-triazine derivatives such as are described in Specifications 220,302 and 240,731.  The products made in substance may be used in the preparation of lakes.  The properties of the dyestuffs prepared in substance and the production of shades on the fibre from the following pairs of components are described in examples:-1 mol. 2 : 4 : 6-tri-p-oxynaphthyl-1 : 3 : 5-triazine and 3 mols. 4-chlor-2-aminophenolphenylether or 4-amino-1- (21-methoxyphenylazo)-naphthalene; 2 mols. 2 : 4-di-p-oxynaphthyl-6-b -oxynaphthyl-1 : 3 : 5-triazine and 2 mols. 4 : 41-tetrazo-3-methoxy-6-methylazobenzene; 1 mol. 2 : 4-diamino-6-oxynaphthyl-1 : 3 : 5-triazine and 1 mol. 4-chlor-2-aminophenolphenylether; 1 mol. 2 : 4-di-p-oxynaphthyl-6-phenylamino-1 : 3 : 5-triazine and 2 mols. o-anisidine.  A table is also given showing shades obtainable on cotton from 2 : 4 : 6-tri-p-oxynaphthyl-1 : 3 : 5-triazine and the 6-b -oxynaphthyl-, 6-resorcyl-, 6-cresyl-, 6-xylyl, 6-methoxynaphthyl-, 6-anthraceno-, 6-phenylamino-, 6-(21 : 51-dichlorphenylamino)-, 6-(41-chlorphenylamino)-, 6-p-tolylamino-, and 6-o-tolylaminoderivatives of 2 : 4-di-p-oxynaphthyl-1 : 3 : 5-triazine : as diazo or tetrazo components are specified:-aniline, 4-chlor-2-anisidine, 5-nitro-2-anisidine, o-phenetidine, 4-nitro-2-toluidine, 3-nitro-4-toluidine, p-nitraniline, 4-chlor-2-aminophenol-phenylether, 4-chlor-3-aminophenolbenzylether, aminoazobenzene, aminoazotoluene, 2-ethoxy-21 : 51-dimethoxy-41-aminoazobenzene, 4-amino-1-phenylazonaphthalene, 4 : 41-diamino-2-methyl - 5 - methoxyazobenzene.  Specification 209,723 also is referred to.ALSO:Insoluble azo dyes are produced on the fibre from unsulphonated diazo, tetrazo, diazoazo &c. compounds and the p-oxynaphthyl-1 : 3 : 5- triazine derivatives such as are described in Specifications 220,302 and 240,731.  The fibre is impregnated with the p-oxynaphthyl-1 : 3 : 5- triazine derivative and then, without drying being necessary, the colour developed with a diazo solution; the dyeings are of good fastness to light and chlorine and vary from yellowish-red to blue or black.  The production of shades on the fibre from the following pairs of compounds is described in examples:-2 : 4 : 6-tri-p-oxynaphthyl-1 : 3 : 5 :-triazine and 4-chlor-2-aminophenolphenylether or 4-amino-1-(21-methoxyphenylazo)-naphthalene; 2 : 4-di-p-oxynaphthyl-6-b -oxynaphthyl-1 : 3 : 5- triazine and 4 : 41-tetrazo-3-methoxy-6-methylazobenzene; 2 : 4-diamino-6-oxynaphthyl-1 : 3 : 5-triazine and 4-chlor-2-aminophenolphenylether; 2 : 4 - di - p -oxynaphthyl-6-phenylamino-1 : 3 : 5-triazine and o-anisidine.  A table is also given showing shades obtainable on cotton from 2 : 4 : 6-tri-p-oxynaphthyl-1 : 3 : 5-triazine and the 6-b -oxynaphthyl-6-resorcyl, 6-cresyl-, 6-xylyl-, 6-methoxynaphthyl-, 6-anthraceno-, 6-phenylamino-6-(21 : 51-dichlorphenylamino)-, 6-(41 chlorphenylamino)-, 6-p-tolyamino- and 6-o-tolylaminoderivatives of 2 : 4-di-p-oxynaphthyl- 1 : 3 : 5-triazine : as diazo or tetrazo components are specified:-aniline, 4-chlor-2-anisidine, 5-nitro-2-anisidine, o-phenetidine, 4-nitro-2-toluidine, 3-nitro-4-toluidine, p-nitraniline, 4-chlor-2-aminophenolphenylether, 4-chlor-2-aminophenolbenzylether, aminoazobenzene, aminoazotoluene, 2-ethoxy - 21 : 51-dimethoxy - 41 - aminoazobenzene, 4-amino-1-phenylazonaphthalene, 4 : 41 - diamino-2-methyl-5-methoxyazobenzene.  Specification 209,723 is referred to.