Patent GB-605457-A (GB)
Title: Dyestuff preparations for printing textile fibres
IPC: D06P1/655
Filed: 1945-04-05
Abstract: A preparation for printing textiles comprises an ester salt of a leuco vat dyestuff and a water-soluble, stable internal salt of the type of a betaine or sulpho-betaine derived from a quaternary nitrogenous organic base and containing no acidic groups other than the acidic groups which form the internal salt.  The sulpho-betaines may be derived from a sulphuric acid compound containing the group +O+SO3H.  The betaines and sulpho-betaines may be made (a) by converting a tertiary amine containing a carboxylic or sulphonic acid group into the corresponding ammonium compound by treatment with an alkylating agent; (b) by converting a tertiary amine containing no acidic group into a corresponding ammonium compound by treatment with an alkylating or aralkylating agent containing a carboxylic or sulphonic acid group, e.g. halogenalkyl carboxylic acid, benzyl halide carboxylic acid, chlorethane sulphonic acid, chloroxypropane sulphonic acid or benzyl halide sulphonic acid, or (c) by introducing carboxylic or sulphonic acid groups into a quaternary ammonium compound.  Particularly useful are betaines and sulpho-betaines containing at least one aralkyl radical.  The following examples are given: (1) a preparation for use in printing pastes to be used in printing by the nitrite developing process consists of the sodium salt of the sulphuric acid ester of leuco-2,1-6,5-anthraquinone-diphenylthiazole mixed with either (a) the sulpho-betaine of trimethylbenzyl-ammonium sulphonic acid (prepared by sulphonating trimethyl-benzyl-ammonium sulphate); (b) the sulpho-betaine of triethyl-benzyl-ammonium sulphonic acid (prepared by sulphonating triethyl-benzyl-ammonium sulphate), or (c) the sulpho-betaine of dimethyl-benzyl-phenyl-ammonium sulphonic acid (prepared by sulphonating dimethyl-benzyl-phenyl-ammonium chloride-the sulpho group is in the benzyl radical).  (2) A preparation for printing by a steaming process contains one of the following dyestuff preparations, water, thickening, sodium chlorate, ammonium thiocyanate and ammonium vanadate; the dyestuff preparations are made by mixing the sodium salt of the sulphuric acid ester of leuco-2,1-6,5-anthraquinone-diphenylthiazole with (a) N-benzyl-pyridinium sulpho-betaine (obtained by sulphonating N-benzylpyridinium sulphate -the sulpho group is in the benzyl radical), (b) the sulpho-betaine of the N-benzylpyridinium-3-sulphonic acid (obtained by reacting the potassium salt of pyridine-3-sulphonic acid with benzyl chloride), (c) the sulpho-betaine of N-methyl-pyridinium-3-sulphonic acid (obtained from the potassium salt of pyridine-3-sulphonic acid and methyl chloride), or (d) the sulphobetaine of dimethyl-benzyl-phenyl-ammonium sulphonic acid.  (3) A printing preparation consists of a mixture of the sodium salt of the acid sulphuric acid ester of leuco dibromanthanthrone together with either (a) pyridinebetaine (obtained from pyridine and monochloroacetic acid) or (b) N-benzyl-pyridinium sulpho-betaine, together with a thickening, sodium nitrite, and ammonia.  (4) A printing preparation is made by mixing the sodium salt of the acid sulphuric acid ester of leuco-di-bromanthanthrone, N - benzyl - pyridinium sulpho-betaine, thickening, ammonium thiocyanate, sodium chlorate, ammonium vanadate and ammonia.  (5) A printing paste is made by mixing the acid sulphuric acid ester salt of leuco-2,1-naphththioindigo with either (a) the sulpho - betaine of dimethyl - benzyl - phenyl - ammonium sulphonic acid, (b) the sulphobetaine of trimethyl-phenyl-ammonium-para-sulphonic acid, (c) pyridine betaine, (d) the sulpho-betaine of N-methyl-pyridinium-3-sulphonic acid, (e) the sulpho-betaine of N-benzyl-pyridinium-3-sulphonic acid, or (f) the sulpho-betaine of N-benzyl-pyridinium sulphonic acid containing the sulpho group in the benzyl nucleus, together with a thickener, ammonium sulphocyanide, sodium chlorate, ammonium vanadate and ammonia. (6) The acid sulphuric acid ester salt of leuco-2,1-naphththioindigo is mixed with the sulpho-betaine of trimethyl-phenyl-ammonium-m-sulphonic acid, a thickening and sodium nitrite.  (7) The sodium salt of the acid sulphuric acid ester of leuco-2,1-6,5-anthraquinone-diphenylthiazole is mixed with the sulpho-betaine of dimethyl-benzyl-phenyl-ammonium-p-sulphonic acid, a thickening, sodium nitrite and sodium carbonate.  Specifications 15722/10, [Class 2 (iii)], 547,063 and 583,413 are referred to.  The Specification as open to inspection under Sect. 91 refers also to the use of betaines and sulpho-betaines derived from primary to tertiary nitrogenous organic bases and includes an example of a printing paste containing the sodium salt of the acid sulphuric acid ester of leuco-2,1 - 6,5-anthraquinone-diphenylthiazole, the internal salt of diethylbenzylamine-sulphonic acid, a thickening, sodium nitrite and sodium carbonate.  This subject-matter does not appear in the Specification as accepted.ALSO:A preparation for printing textiles comprises an ester salt of a leuco vat dyestuff and a water-soluble stable internal salt of the type of betaine or sulpho-betaine derived from a quaternary nitrogenous organic base and containing no acidic groups other than the acidic groups which form the internal salt. The sulpho-betaines may be derived from a sulphuric acid compound containing the group -O-SO3H.  Particularly useful are betaines and sulpho-betaines containing at least one aralkyl radical.  The following examples are given.  (1) A preparation for use in printing pastes to be used in printing by the nitrite developing process consists of the sodium salt of the sulphuric acid ester of leuco-2,1-6,5-anthraquinone - diphenylthiazole mixed with either (a) the sulpho-betaine of trimethyl-benzyl-ammonium sulphonic acid (prepared by sulphonating trimethyl-benzyl-ammonium sulphate); (b) the sulpho-betaine of triethyl - benzyl-amonium sulphonic acid (prepared by sulphonating triethyl-benzyl-ammonium sulphate), or 9c) the sulpho-betaine of dimethyl-benzyl-phenyl-ammonium sulphonic acid (prepared by sulphonating dimethyl-benzyl-phenylammonium chloride-the sulpho group is in the benzyl radical).  (2) A preparation for printing by a steaming process contains one of the following dyestuff preparations, water, thickening, sodium chlorate, ammonium thiocyanate and ammonium vanadate; the dyestuff preparations are made by mixing the sodium salt of the sulphuric acid ester of leuco-2, 1-6,5-anthraquinone-diphenylthiazole with (a) N-benzyl-pyridinium sulpho betaine (obtained by sulphonating N-benzylpyridinium sulphate-the sulpho group is in the benzyl radical); (b) the sulpho-bentaine of the N-benzylpyridinium-3-sulphonic acid (obtained by reacting the potassium salt of pyridine-3-sulphonic acid with benzyl chloride); (c) the sulpho-betaine of N-methyl-pyridinium-3-sulphonic acid (obtained from the potassium salt of pyridine-3-sulphonic acid and methyl chloride); or 9d) the sulphobetaine of dimethyl-benzyl-phenyl-ammonium sulphonic acid.  (3) A printing preparation consists of a mixture of the sodium salt of the acid sulphonic acid ester of leuco dibromanthanthrone together with either (a) pyridine-betaine (obtained from pyridine and mono-chloracetic acid) or (b) N-benzyl-pyridinium sulpho-betaine, together with a thickening, sodium nitrite, and ammonia.  (4) A printing preparation is made by mixing the sodium salt of the acid sulphuric acid ester of leuco-dibromanthanthrone, N - benzyl - pyridinium sulphobetaine, thickening, ammonium thiocyanate sodium chlorate, ammonium vanadate and ammonia.  (5) A printing paste is made by mixing the acid sulphuric acid ester salt of leuco-2,1-naphththioindigo with either (a) the sulpho-betaine of dimethyl - benzyl - phenyl - ammonium sulphonic acid; (b) the sulphobetaine of trimethyl-phenyl-ammonium-parasulphonic acid; (c) pyridine betaine; (d) the sulpho-betaine of N-methyl pyridinium-3-sulphonic acid; (e) the sulpho-betaine of N-benzyl-pyridinium-3-sulphonic acid; or (f) the sulphobetaine of N-benzyl-pyridinium sulphonic acid containing the sulpho group in the benzyl nucleus, together with a thickener, ammonium sulphocyanide, sodium chlorate, ammonium vanadate and ammonia. (6) The acid sulphuric acid ester salt of leuco-2-1-naphththioindigo is mixed with the sulpho-betaine of trimethyl-phenyl-ammonium-m-sulphonic acid, a thickening and sodium nitrite.  (7) The sodium salt of the acid sulphuric acid ester of leuco-2,1-6,5-anthraquinone-diphenylthiazole is mixed with the sulpho-betaine of dimethyl-benzyl-phenyl-ammonium-p-sulphonic acid, a thickening, sodium nitrite and sodium carbonate.  Specifications 15722/10, [Class 2 (iii)], 547,063 and 583,413 are referred to.  The Specification as open to inspection under Sect. 91 refers also to the use of betaines and sulpho-betaines derived from primary to tertiary nitrogenous organic bases and includes an example of a printing paste containing the sodium salt of the acid sulphuric acid ester of leuco-2,1-6,5-anthraquinone-diphenylthiazole, the internal salt of diethylbenzylamine-sulphonic acid, a thickening, sodium nitrite and sodium carbonate.  This subject-matter does not appear in the Specification as accepted.