Patent GB-825017-A (GB)
Title: Textile colouration process
Inventor: BEECH WATER FRANCIS
IPC: D06P1/642
Filed: 1956-11-21
Abstract: Water-insoluble compounds containing a mono- or di-halogenated 1:3:5-triazine ring, for use in treating textiles (see Group IV (c)), are obtained by reacting a cyanuric halide such as cyanuric chloride with one or two molecular proportions of a primary or secondary amine, an alcohol, a phenol or a mercaptan which is free from solubilizing groups.  Suitable amines, alcohols, phenols and mercaptans are methylamine, diethylamine, b -hydroxyethylamine, aniline, p-diethylaminoaniline, a -naphthylamine, phenol, b -naphthol, p-thiocresol and methanol.  By using compounds containing more than one amino, hydroxyl or mercapto group, water-insoluble triazines containing more than one halogenated triazine ring, such as 1:2-bis-(21:41 - dichloro - 11:31:51 - triazinylamino-)-ethane, may be obtained.  Alternatively, the compounds may be obtained by reacting equimolecular proportions of an alcohol, primary or secondary amine, phenol or mercaptan with a dihalogenated 1:3:5-triazine containing alkyl or aryl substituents such as 4:6-dichloro-2-phenyl - 1:3:5 - triazine or 4:6 - dichloro - 2 -methyl.-1:3:5-triazine.ALSO:Textile materials of natural protein fibres, such as wool or silk, or of artificial fibres, such as those of cellulose esters (including triacetate) or ethers, polyamides, polyesters, polyacrylonitrile or polyvinyl alcohol are dyed or printed by applying a dyestuff containing a reactive amino group (an amino p  group containing a hydrogen atom which is readily replaced by treatment with cyanuric chloride at 20 DEG  C. in aqueous medium) and also applying, before, together with or after the dyestuff, an aqueous suspension of a water-insoluble colourless or coloured compound containing a mono- or dihalogenated 1 : 3 : 5-triazine ring. As applied to printing, the printing paste containing the dyestuff and the triazine may also include dispersing agents, ethanol, sodium m-nitrobenzene-sulphonate, urea, thiourea, thiodiglycol and thickeners such as sodium alginate, and the print is fixed by steaming, if desired under pressure.  Various soluble and insoluble dyestuffs are specified.  Suitable colourless, insoluble triazine derivatives are the condensation products of a cyanuric halide with a primary or secondary amine, an alcohol, a phenol or a mercaptan free from solubilizing groups such as methylamine, diethylamine, b -hydroxyethylamine, aniline, p - diethylaminoaniline, a  - naphthylamine, phenol, b -naphthol, p-thiocresol and methanol.  Other specified colourless triazine derivatives are 4 : 6 - dichloro - 2 - phenyl - 1 : 3 : 5 - triazine, 4 : 6 - dichloro - 2 - methyl - 1 : 3 : 5 - triazine and 1 : 2 - bis - (21 : 41 - dichloro - 11 : 31 : 51-triazinylamino-) ethane.  Specified coloured triazine derivatives are the condensation products of cyanuric halides with aminoazo, aminoanthraquinone and amino nitro diphenylamine compounds such as 4 : 41 - diaminozaobenzene, 4 - amino - 41 - dimethylaminoazobenzene, 2-chloro - 4 - ethanesulphonyl - 41 - N(b  - hydroxyethyl) : N(b  - aminoethyl) - aminoazobenzene, 2 : 4 - bis - methanesulphonyl - 41 - diethyl-amino - 21 - aminoazobenzene, 41 - amino - 2-nitro - diphenylamine and 1 - (b  - aminoethyl) aminoanthraquinone.  When the dyestuff or triazine derivative contains metal - complex forming groups, a treatment with a metal-yielding agent may be applied. Numerous examples of dyeing and printing are given.