Making fabrics easier to iron

Patent metadata

Field	Value
Publication number	US-10697113-B2
Application number	US-201715589232-A
Country	US
Kind code	B2
Filing date	May 8, 2017
Priority date	Nov 11, 2014
Publication date	Jun 30, 2020
Grant date	Jun 30, 2020

Abstract

The aim is to reduce the wrinkling tendency of a cotton textile or otherwise cellulosic textile. This was achieved by bringing the textile into contact with an amino-group-containing polymer having carboxylic-acid-group-bearing substituents and optionally subsequently ironing the textile.

First claim

What is claimed is:

1. A method for treating textiles made of cellulose-containing material comprising: bringing the textiles into contact with an amino-group-containing polymer having carboxylic-acid-group-bearing substituents wherein the polymer is selected from aminopolysiloxanes having formula (I),
R 1 2 R 2 Si—O—(SiR 1 R 2 —O—) n SiR 1 2 R 2 ,

in which
R 1 represents straight-chain or branched or cyclic C 1 to C 18 hydrocarbon residues,
R 2 represents R 1 or one of the groups —R 3 —NHR 4 or R 3 —NR 4 —R 3 —NHR 4 , in which
R 3 represents a straight-chain or branched or cyclic divalent C 1 to C 18 hydrocarbon residue and
R 4 represents a hydrogen atom, a C 1 to C 10 alkyl residue,
and n represents a value from 10 to 2000,
wherein not all residues R 1 , not all residues R 2 , not all residues R 3 , and not all residues R 4 must be identical in the compound, with the stipulation that at least 2 of the residues R 2 are not R 1 and, in at least 1 of the residues R 2 that are not R 1 and the residue R 4 is a group —R 5 —COOX, in which
R 5 is a divalent hydrocarbon residue having 1 to 30 carbon atoms, and
X is hydrogen, an alkali metal, or an ammonium group.

2. The method according to claim 1 , wherein the textiles made of cellulose-containing material are brought into contact with the amino-group-containing polymer having carboxylic-acid-group-bearing substituents at temperatures in the range of 10° C. to 100° C. over a time span of 10 minutes to 180 minutes.

3. The method according to claim 2 , wherein the textiles are brought into contact with the polymer at temperatures in the range of 20° C. to 60° C. over a time span of 30 minutes to 60 minutes.

4. The method according to claim 1 , wherein the textiles are ironed with a common household iron after the treatment with the amino-group-containing polymer having carboxylic-acid-group-bearing substituents.

5. The method according to claim 4 , wherein ironing temperatures are in the range of 50° C. to 220° C.

6. The method according to claim 5 , wherein the ironing temperatures are in the range of 100° C. to 160° C.

7. The method according to claim 1 , wherein R 5 is a divalent hydrocarbon residue having 2 to 20 carbon atoms.

8. The method according to claim 1 , wherein the amino-group in the amino-group-containing polymer is selected from polyvinylamines, polyalkylene imines, and mixtures thereof; and
wherein the polyvinylamines and the polyalkylene imines bear substituents having carboxyl groups on the nitrogen atom of the amino function of the polyvinylamines and the polyalkylene imines.

Assignees

• Henkel Ag & Co Kgaa

Inventors

• Spill Iwona
• Schmiedel Peter
• Oberthuer Markus
• Dehabadi Vahid Ameri
• Buschmann Hans-Juergen
• Gutmann Jochen Stefan

Classifications

• C11D3/3742

  Nitrogen containing silicones · CPC title

• C11D3/3769

  (Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines · CPC title

• C11D3/3723

  Polyamines or polyalkyleneimines · CPC title

• D06M23/06

  Processes in which the treating agent is dispersed in a gas, e.g. aerosols (aerosol compositions C09K3/30) · CPC title

• D06M15/61

  Polyamines {polyimines} · CPC title