Bleaching and dyeing; fluid treatment and chemical modification – Reactive dye composition – process – or product
Patent
1994-10-31
1996-01-16
Einsman, Margaret
Bleaching and dyeing; fluid treatment and chemical modification
Reactive dye composition, process, or product
8567, 8576, 8584, 8606, 8614, 8930, 8188, 8189, 8196, 81271, 8554, C09B 6200, D06P 500, D06P 366
Patent
active
054844576
DESCRIPTION:
BRIEF SUMMARY
DESCRIPTION
The invention relates to a process for the continuous production of surface dyeings on cellulose fiber textile materials by treatment of the textile materials with an aqueous liquor containing cationic polyquaternary condensation products and phosphoric esters and subsequent dyeing of the textile materials with reactive dyes and finishing of the dyeings in conventional manner.
DE-A-3 320 629 discloses a process for dyeing cellulose fiber textile materials by initially producing on the textile materials a firmly adherent film by applying thereto groups, and epoxides formed therefrom, water-soluble condensator containing N-methylol or N-methylol ether groups, reactive or acid dyes in an aqueous medium at pH values from 6 to 12. The dyeings thus obtainable correspond in terms of properties to an indigo dyeing. This process can be used to produce denim articles in all colors. As in indigo dyeing, in these denim dyeings the dyed warp of the denim fabric becomes lighter in color and more brilliant in shade on repeated washing.
U.S. Pat. No. 5 015 754 discloses quaternized condensation products obtainable by reaction of precondensates of trialkanolamines with carboxylic acid derivatives or epichlorohydrin and subsequent quaternization with benzyl chloride. These condensation products are used for aftertreatment for the fixation of dyeings and prints on cellulose fiber textile materials.
The present invention has for its object to make available a process for the continuous production of surface dyeings on cellulose fiber textile materials.
This object is achieved according to the invention when the textile materials are initially treated with an aqueous liquor containing precondensates of trialkanolamines and ureas, cyclic carbonates and/or epihalohydrins and/or benzyl chloride quaternized condensation products of piperazine and epichlorohydrin, and from aliphatic, aryl-substituted aliphatic alcohols, phenols or alkyl-substituted phenols having in each case 6 to 18 carbon atoms in the alcohol or phenol radical, reactive dyes in an aqueous medium and subsequently the dyes are fixed by treatment with an alkaline liquor in conventional manner and the dyeing finished.
The cellulose fibers of the textile materials thus dyed have been dyed not with complete penetration but only at the surface. These surface dyeings could also be referred to as ring dyeings. However, the textile material has been dyed level. Textile materials which can be dyed by the process of the invention are for example yarns, woven fabrics, knitted fabrics or nonwoven fabrics, which consist of cellulose fibers or contain them alone or in a blend with other fibers. Preferably the process of the invention is used for dyeing cellulose fiber warp yarns.
The textile materials are initially treated with an aqueous liquor containing at least 5 g/l of benzyl halide-quaternized condensation products of precondensates of trialkanolamines and ureas, cyclic carbonates and/or epihalohydrins. Quaternized condensation products of this kind are described in detail in U.S. Pat. No. 5 015 754. The quaternized condensation products consist of ##STR1## where the radicals R.sup.1 to R.sup.3 are 1,2-alkylene groups having 2 to 4 carbon atoms, and formula IIa ##STR2## where n is 0 or 1 which can be joined together in the case of n=0 to form a five- or six-membered ring, or chlorine or bromine and interrupted by one or more nonadjacent oxygen atoms, ##STR3## where m, n and r are each 0 or 1 -alkenyl group or a phenyl radical which can carry C.sub.1 -C.sub.4 -alkyl groups, C.sub.1 -C.sub.4 -alkoxy groups and also fluorine, chlorine or bromine as substituents, ##STR4## where X is chlorine or bromine, group or a phenyl radical which can carry C.sub.1 -C.sub.4 -alkyl groups, C.sub.1 -C.sub.4 -alkoxy groups and also fluorine, chlorine or bromine as substituents, and ##STR5## or e) of a bifunctional compound of the general formula IIe interrupted by one or more nonadjacent oxygen atoms and/or contain one or more nonvicinal hydroxyl groups, and groups ##STR6## or of
REFERENCES:
patent: 4579559 (1986-04-01), Canela
patent: 5015754 (1991-05-01), Dix et al.
Bacher Kurt
Kromm Erich
Schlueter Harald
Schrott Wolfgang
Schulze Joerg
BASF - Aktiengesellschaft
Einsman Margaret
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