DE475553C - Process for the production of real colors on the vegetable fiber - Google Patents

Description

A method for generating real dyeings on the plant fiber in the patent 467 545 a method for generating real dyes is described on vegetable fiber, which consists in that the 2 - 3-oxynaphthoic acid-J3-nap, hthaäd impregnated fiber with the Diazo compounds of such amino bases. treated, which in ? - - 5-position to the amino, group carry substituents, of which at least one is a chlorine atom. In addition to other fastness properties, the dyeings obtained are particularly notable for their good resistance to testing.

In the further processing of this inventive idea has now been found that leads to new, equally valuable dyes when such in the method in 2 - 5 positions are used to Aminogruppe- substituted bases which instead of a chlorine atom one of the groups - SO. - R or - CO - R carry, in which R denotes an alkyl, aryl or aralkyl radical or an alkyl, aryl or aralkylamide radical, that is to say derivatives of aromatic ketones, sulfones, sulfonates and Carboxylic acid ary.U, the alkyl, aryl and aralkyl amides of the alkyloxy, aryloxy and aralkyloxy-m-aminobes7, oesäure be excluded -, alkyloxy, aryloxy and aralkyloxy groups, halogens and the like - This gives dyes which, in addition to a clear shade, have particularly good color fastness.

Good example of boiled and dried yarn is treated with a solution of 3 g of 2 - 3-oxy-naplithoesä-ur e-napht'halid 13, 9 cc of sodium hydroxide solution 34 'B6 and 8 cc turquoise, chrotöl impregnated in liters, thoroughly unwound and Without drying, developed, rinsed and soaped in a diazo solution neutralized with chalk, which contains 4,9 9 -2-aminotO1Y1-4-phenylsulfone, or 4,79 4-chloro-3-aininobenzanilide per liter.

Miari obtained by using the 2-phenyl sulfone AmincktO1Y1-4 a blaustichi g-, with 4-chloro-3-2nlinobenzanilid a gelbstichigrote coloring of very good Beuchechtheit.

The new dyes can also be used in the printing process according to one of the usual working methods.

In the following table the nuances of a number produced by the present process dyeings are summarized: - 2 -3-Oxvnaphthol-g-naphthylamine, gelled with the I 'Dia: zo- or tetrazo compound from Nuance 3-Anüno-4-phenoxy-benzophenone bordo 3'Amino-4'-methyl-benzoyl-2-chloroaniline vivid scarlet fever 3'Amino-4'-methyl-benzoyl-2-anisidine bright scarlet 3'-Amino-4'-methyl-benzoyl-2-ainodiphenyl ether clear scarlet red 3'-Amin0-4 '# methyl-benzOYI-3-toluidine vivid scarlet fever 3'Amino-4'-methyl-benzoyl-4-phenetidine 3'-Amin0-4'-methyl-benzoyl-4-chloro -, -, - toluidine clear red 3'-Amino-4'-methyl-benzOYI-5-chloro-2-anisidine clear scarlet red 3 - 3-Diamino-4 - 4'-ditO1Y1ketOn bright scarlet Bis- (3'-amino-4'-methyl-benzoyl) -dianisidine copper red Bis- (3'-amino-4'-methyl-benzoyl) -o-tolidine corinth 3-Amino-4-chloro-diphenylsuffon red 2, -amino-tolyl-4-benzylsulfone clear scarlet red 2-Amino-toluene-4-sulfodünethylamide bright scarlet fever 2-Amino-phenetol-4-sulfodimethylamide bluish-tinted red

Claims (1)

PAT EN TA NS Pruch: modification of protected by the main patent 467,545 a process for forming a true dyeings on the vegetable fiber, consisting in that in place of diazo compounds such amino bases, which in 2 - 5 - wear to the amino substituents, of which at least one pure chlorine atom, here, the diazo compounds 2-5-substituted amino bases which enflialten instead of a chlorine atom one of the groups -SO.-R or -CO-R, wherein R is an alkyl or aryl. Aralkyl radical or an alkyl, aryl or. AraJkylaminrest means, on which - - 3-oxynaphthoic acid-p-naphthahd impregnated fiber is allowed to act, the use of alkyl, aryl and aralkylamides of alkyloxy, aryloxy and aralkyloxy-m-aniinobenzoic acid to be excluded .