Compositions – Durable finishes for textile materials – or processes of... – Oil or water repellent or soil resistant or retardant
Patent
1991-06-12
1992-04-28
Clingman, A. Lionel
Compositions
Durable finishes for textile materials, or processes of...
Oil or water repellent or soil resistant or retardant
252 87, 252 875, 252 88, 252 89, D06M 1008
Patent
active
051086280
DESCRIPTION:
BRIEF SUMMARY
This invention relates to textile softeners for treatment liquors having high contents of electrolytes and/or anionic optical brighteners.
In the treatment of fabrics, particularly in the crease-resistant finishing of fabrics containing cotton and/or rayon staple, it is standard practice to use softeners in addition to the principal agents (aminoplastic precondensates), cf. Chwala/Anger: "Handbuch der Textilhilfsmittel", pages 464 to 467, Verlag Chemie Weinheim, 1977. The metal salts showing an acidic reaction which are required as catalysts, for example magnesium chloride, aluminum chloride or zinc chloride, impose stringent demands on the electrolyte stability of the softener formulations.
In the case of undyed fabrics, it is standard practice to add anionic optical brighteners to the treatment solutions. However, this means that known cationic softeners, for example fatty amidoamine salts or quaternary ammonium compounds (Chwala/Anger: "Handbuch der Textilhilfsmittel", pages 686 to 687, Verlag Chemie Weinheim, 1977 or U.S. Pat. No. 2,243,980), cannot simultaneously be used because the cationic softeners react chemically with the anionic brighteners and lead to precipitations. To prevent the formation of precipitable electroneutral compounds, therefore, cationic softeners modified by incorporation of polyethylene glycol chains, for example fatty acid amidoamines reacted with ethylene oxide or reactive polyglycol derivatives, for example chlorohydrin or glycidyl ethers, are used in many cases (Lindner: "Tenside - Textilhilfsmittel Waschrohstoffe", Vol. 1, page 975 (1974)). However, the use of modified softeners such as these is attended by a number of disadvantages. For example, the feel properties of the textile material are adversely affected. The ethoxylation of fatty acid amidoamines often results in visible discoloration of the treated textile material. The modification of fatty acid amidoamines with chlorohydrin ethers must be carried out in the presence of alkali hydroxides. The sodium chloride formed as secondary products during this reaction leads to difficulties in the production of aqueous dispersions. In many cases, the aqueous dispersions are obtained are only stable for short periods, for example for 2 hours, and/or have high viscosities.
Now, the problem addressed by the present invention was to develop textile softeners which would be stable in the presence of electrolytes and/or anionic optical brighteners. In addition, the softeners to be developed would provide the textile material with the favorable feel properties obtainable with cationic softeners known from the prior art and would not have any of the disadvantages involved in using fatty acid amidoamines modified with ethylene oxide or with reactive polyglycol derivatives.
It has surprisingly been found that the stringent demands made of textile softeners are satisified by aliphatic carboxylic acid amidoamines which are obtained by reaction of polyamines with carboxylic acid mixtures containing ether carboxylic acids.
Accordingly, the present invention relates to textile softeners for treatment liquors having high contents of electrolytes and/or anionic optical brighteners, characterized in that the treatment liquors contain as textile softeners aliphatic carboxylic acid amidoamines obtainable by condensation of polyamines and carboxylic acid mixtures containing aliphatic ether carboxylic acids corresponding to general formula I --COOH and n is a number of 2 to 20, in combination with aliphatic C.sub.8-22 monocarboxylic acids and/or amide-forming aliphatic C.sub.8-22 monocarboxylic acid derivatives.
In the context of the invention, "textile softeners" are understood to be auxiliaries which impart good feel properties, for example, to yarns, nonwovens, flat textile materials and/or knitted fabrics containing natural and/or synthetic fibers.
Suitable polyamine components for the preparation of the aliphatic carboxylic acid amidoamines to be used in accordance with the invention are, preferably, those corresponding to general formula I
REFERENCES:
patent: 4661269 (1987-04-01), Trinh et al.
Bischof Klaudia
Ploog Uwe
Schlueter Kaspar
Uphues Guenter
Clingman A. Lionel
Grandmaison Real J.
Henkel Kommanditgesellschaft auf Aktien
Jaeschke Wayne C.
Parks William S.
LandOfFree
Textile softeners does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Textile softeners, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Textile softeners will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1246702