Method for providing an anti-microbial and an anti-pilling effect and for improving dye uptake to textiles, novel co-polymers and textiles

Patent metadata

Field	Value
Publication number	US-11549212-B2
Application number	US-201916434907-A
Country	US
Kind code	B2
Filing date	Jun 7, 2019
Priority date	Jun 11, 2018
Publication date	Jan 10, 2023
Grant date	Jan 10, 2023

Abstract

The present invention relates to a method for providing an anti-microbial and an anti-pilling effect to textiles and for improving dye uptake to textiles. The invention also relates to novel co-polymers to be used in the method of the invention and to novel textiles.

First claim

The invention claimed is:

1. A method for providing an anti-microbial and an anti-pilling effect and for improving dye uptake to a textile, said method comprising
(i) treating said textile with an aqueous solution comprising
a) at least one co-polymer made of a monomer of general formula (I)

or mixture thereof,
and a monomer of general formula (II)

or mixture thereof,
wherein
X is, each independently selected from the following (A) or (B) chains

the stars indicate the bonds linked to the oxygen and nitrogen atoms in the monomers of formula (I) and formula (II);
n is, each independently, an integer from 1 to 10; and
Alk is a C 1 -C 4 alkyl group;

and wherein the tertiary amino groups in formula (I) are partially quaternized with halo-long chain alkyl groups;
and
b) at least one aliphatic or cycloaliphatic diisocyanate;
and
(ii) optionally drying and/or fixing said textile,
wherein said treating (i) creates urethane bridges which covalently bind said co-polymer to the textile; and
wherein the aqueous solution comprises a co-polymer that is made up of 2-(dimethylamino)ethyl methacrylate (DMAEMA) and 2-hydroxyethyl methacrylate (HEMA) and wherein the molar DMAEMA/HEMA ratio is 95-85/5-15 and 20-40% of the tertiary amino groups are quaternized.

2. The method of claim 1 , wherein Alk is a linear or branched, saturated C 1 -C 4 alkyl group.

3. The method of claim 1 , wherein n is an integer from 1 to 8.

4. The method of claim 1 , wherein the nitrogen atom in formula (I) is quaternized to provide a monomer of formula (I′)

wherein X and Alk are as above defined, Alk − is a C 6 to C 22 alkyl group, and Hal − indicates a halogen counter ion.

5. The method of claim 1 , wherein said aliphatic or cycloaliphatic diisocyanate is selected from hexamethylene diisocyanate, isophorone diisocyanate, methylene-bis(4-cyclohexylisocyanate) and blocked aliphatic or cycloaliphatic diisocyanates.

6. The method of claim 1 , wherein said textile is selected from any material suitable to prepare fabrics and garments, yarns, ready for dyeing fabrics, any textile articles, and garment articles.

7. The method of claim 6 , wherein said textile is denim.

Assignees

• Sanko Tekstil Isletmeleri San Ve Tic As

Inventors

• Kaplan Gökhan
• Zengi Leyla
• Kazanç Semih
• Zeyrek Mustafa

Classifications

• D06M11/00

  Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising (D06M10/00 takes precedence) · CPC title

• D06P5/225

  Aminalization of cellulose; introducing aminogroups into cellulose · CPC title

• C09D133/14

  of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen · CPC title

• D06N3/04

  with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds · CPC title

• D06P5/002

  Locally enhancing dye affinity of a textile material by chemical means · CPC title