Textile fabrics with reduced buildup of odor
AssigneeArchroma International (Germany) GmbH
InventorsAlfred Weihrather, Gunter Presnitz, Reinhold Braun
Life of this patent
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Abstract
Mixtures are described which contain reaction products of one or more amines with one or more epoxides and additionally isocyanates. Applying such mixtures to textile fabrics, especially polyester fiber fabrics, reduces or prevents unpleasant sweaty odor after physical exercise. The effects are very durable to laundering.
Claims14
A textile fabric treated with a liquid composition and subsequently dried and cured, wherein the liquid composition contains a component A comprising one or more reaction products formed from the reaction of a mixture of a polyepoxide and amines a), b) and c) wherein
- a) is a non-ethoxylated amine of formula
- where R is an alkyl of 6 to 24 and n is from 0 to 10,
- b) is a polyetheramine of formula
- where each P is H or CH3 and W is H or
- where T is an alkyl of 1 to 6 carbon atoms where x, y and z are each from 0 to 50 subject to the proviso that the sum x+y+z is from 3 to 100, and
- c) is an amino-functional polyorganosiloxane derived from polydialkylsiloxanes as a result of one or more alkyl groups in the polydialkylsiloxane chain being replaced by moieties of formula
- or of formula
- wherein the amines a), b) and c) can be used in the reaction as a mixture or individually in succession, and wherein component A comprises a primary amino group and is a liquid;
- and
- a component B comprising at least one monoisocyanate or polyisocyanate or a mixture of such isocyanates, wherein the polyisocyanate comprises isocyanates can be present in free or blocked form;
- and
- wherein the liquid composition is an aqueous composition having a pH less than 7, and
- wherein the textile fabric comprises an add-on of 0.5 to 3 wt % on the textile fabric, based on water-free and solvent-free product, and is dried at a temperature in the range from 100 to 120° C. and/or cured at a temperature in the range from 140 to 180° C.
A liquid composition comprising:
- component A comprising one or more reaction products formed from the reaction of a mixture of a polyepoxide and amines a), b) and c) wherein
- a) is a non-ethoxylated amine of formula
- where R is an alkyl of 6 to 24 and n is from 0 to 10,
- b) is a polyetheramine of formula
- where each P is H or CH3 and W is H or
- where T is an alkyl of 1 to 6 carbon atoms where x, y and z are each from 0 to 50 subject to the proviso that the sum x+y+z is from 3 to 100, and
- c) is an amino-functional polyorganosiloxane derived from polydialkylsiloxanes as a result of one or more alkyl groups in the polydialkylsiloxane chain being replaced by moieties of formula
- or of formula
- wherein the amines a), b) and c) can be used in the reaction as a mixture or individually in succession, and wherein component A comprises a primary amino group and is a liquid, and
- component B comprising at least one monoisocyanate or polyisocyanate or a mixture of such isocyanates, wherein the polyisocyanate comprises isocyanates present in free or blocked form and wherein the liquid composition is an aqueous composition having a pH less than 7.
Dependencies are inferred from the claim text.