GB583413A - Dyestuff preparations for dyeing or printing textile fibres - Google Patents

Abstract

A preparation for use in printing or dyeing textiles comprises a salt of an acid polybasic acid ester of an enolic reduction product of a cyclic poly-ketone yielding a water-insoluble dyestuff on acid oxidation, a water-soluble organic onium compound and a water-soluble organic acid amide. The enolic ester compound present in the dyestuff preparation may be a derivative of a dyestuff or a dyestuff intermediate which yields a water-insoluble dyestuff on acid oxidation, e.g., enolic ester compounds derived from vat dyestuffs. In the numerous specific Examples given the enolic ester compounds used are the acid sulphuric acid esters of (a) leuco-2 : 1-naphthioindigo, (b) leuco-dibromanthanthrone, (c) leuco-dichloranthanthrone, (d) leuco-6 : 61-dichloro-4 : 41-dimethyl-thionidigo, (e) leuco-2 : 1- : 5-anthraquinone-diphenylthiazole, (f) leuco-tribromisodibenzanthrone, (g) leuco-dichlorisodibenzanthrone, (h) leuco-dibromo-3 : 4-8 : 9-de-benzpyrenequinone, and (i) leuco-pyranthrone. Specified polybasic acids are malonic, phthalic, m-sulphobenzoic, phosphoric and sulphuric acids. Water-soluble organic onium compounds may be compounds with internal salt formation, e.g. betaines and onium groups may be those of a quaternary ammonium, phosphonium or ternary sulphonium compounds. The onium compounds may contain water-solubilizing groups such as hydroxyl, carboxylic and sulphonic acid groups and polyether radicals. Particularly useful are quaternary ammonium compounds obtainable by converting tertiary alkylolamines with the aid of methyl chloride, dimethyl sulphate and p-toluene sulphonic acid esters, or by reacting alkylene oxides with salts of tertiary amines or alkylol-amines. Organic onium compounds containing hydroxyl and polyether groups may be made by causing alkylene oxide to react with onium compounds. In the Examples, the following are specified:-the addition product of dimethyl or diethyl sulphate with tri-b -hydroxyethyl ether of triethanolamine; the addition products of dimethyl sulphate with tetrahydroxy-polyethyl ether, with asym: diethyl-diethanol-ethylene diamine, with piperidine - N - b - hydroxy - triethyl ether, with morpholine - N - b - hydroxyethyl ether, or with b -hydroxyethyl ether of N-b -hydroxyethylmorpholine; the addition product of methyl chloride with tri-b -hydroxyethyl ether of triethanolamine; the internal salts of dimethylphenylbenzyl - ammonium - monophonic acid or trimethylphenyl-ammonium-sulphonic acid, the mono sodium salt or the mono-diethylamine salt of the internal salt of dimethylphenyl-benzyl-ammonium disulphonic acid, N-b -hydroxyethyl-pyridinium chloride, b -hydroxyethyl ether of N-b -hydroxyethyl pyridnium chloride, N - methyl - pyridinium-methylsulphonate, acetamidopyridinium chloride, tetraethanolammonium chloride or triethanol-sulphonium chloride, p and the addition product of dimethyl sulphate with the tetrahydroxy polyethylether obtainable by the action of ethylene oxide on tetraethanol ethylene diamine. Specified organic acid amides (which may be partially replaced by compounds containing hydroxy groups such as phenol, furfuryl alcohol, thiodiglycol or turkey red oil) are carboxylic acid amides, e.g., formamide, acetamide, chloracetamide, hydroxyacetamide, diethanoloxamide, tartaric acid amide or benzamide, urea and its derivatives, e.g., urethane, dicyandiamide, biuret, hydantoin, asym: diethyl urea or 5 : 5-dimethylhydantoin; also sulphonic acid amides, e.g., toluene-sulphonamide. Specification 15722/10, [Class 2 (iii)], is referred to.