Treatment comprising water- and oil-repellent agent

Patent metadata

Field	Value
Publication number	US-9945069-B2
Application number	US-44612007-A
Country	US
Kind code	B2
Filing date	Oct 17, 2007
Priority date	Oct 20, 2006
Publication date	Apr 17, 2018
Grant date	Apr 17, 2018

Abstract

A textile having high fluorine adhesion rate, and excellent water- and oil-repellency can be obtained by a method of producing a treated textile, comprising steps of: (1) preparing a treatment liquid comprising a water- and oil-repellent agent which comprises at least one fluorine-containing compound selected from the group consisting of a fluorine-containing polymer or a fluorine-containing low molecular weight compound, (2) adjusting pH of the treatment liquid to at most 7, (3) applying the treatment liquid to a textile, (4) treating the textile with steam, and (5) washing the textile with water and dehydrating the textile, wherein the treatment liquid comprises a thermally gelling substance.

First claim

The invention claimed is:

1. A method of producing a treated textile, comprising steps of:
(1) preparing a treatment liquid comprising a water- and oil-repellent agent which comprises a fluorine-containing polymer,
(2) adjusting pH of the treatment liquid to at most 7,
(3) applying the treatment liquid to a textile,
(4) treating the textile with steam, and
(5) washing the textile with water and dehydrating the textile,
wherein the water- and oil-repellent agent or the treatment liquid comprises a thermally gelling substance, or, in the step (3), the thermally gelling substance is used in addition to the treatment liquid and the thermally gelling substance is applied to the textile with contacting the thermally gelling substance with the treatment liquid,
the thermally gelling substance is at least one cellulose compound selected from the group consisting of methyl cellulose, hydroxypropyl methyl cellulose, hydroxyethyl methyl cellulose, ethyl cellulose, ethyl hydroxyethyl cellulose, and methyl hydroxypropyl cellulose,
the fluorine-containing polymer comprises:
(I) a repeating unit derived from a monomer having a fluoroalkyl group, and
(II) a repeating unit derived from a fluorine-free monomer, and/or
(III) a repeating unit derived from a crosslinkable monomer, and
the fluoroalkyl group-containing monomer is of the formula:

wherein X is a hydrogen atom, a methyl group, a fluorine atom, a chlorine atom, a bromine atom, a iodine atom, CFX 1 X 2 group (in which X 1 and X 2 are a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom or a iodine atom), a cyano group, a linear or branched fluoroalkyl group having 1 to 21 carbon atoms, a substituted or unsubstituted benzyl group, or a substituted or unsubstituted phenyl group,
Y is an aliphatic group having 1 to 10 carbon atoms, an aromatic group or cycloaliphatic group having 6 to 10 carbon atoms, a —SO 2 N(R 1 )CH 2 CH 2 — group (in which R 1 is an alkyl group having 1 to 4 carbon atoms) or a —CH 2 CH(OY 1 )CH 2 — group (in which Y 1 is a hydrogen atom or an acetyl group), and
Rf is a linear or branched fluoroalkyl group having 1 to 21 carbon atoms, and
wherein the fluorine-containing polymer is free from an oxyalkylene group; and
wherein the amount of the repeating unit (II) is from 0 to 200 parts by weight, and the amount of the repeating unit (III) is from 0 to 30 parts by weight, based on 100 parts by weight of the repeating unit (I), and
the amount of the thermally gelling substance is from 0.1 to 100 parts by weight, based on 100 parts by weight of the fluorine-containing polymer.

2. The method according to claim 1 , wherein the thermally gelling substance is a material which gels in the presence of water at the temperature of at least 30° C.

3. The method according to claim 1 , wherein the thermally gelling substance is insoluble in water at the temperature of at least 30° C.

4. The method according to claim 1 , wherein the thermally gelling substance is at least one material selected from the group consisting of methyl cellulose, hydroxypropyl methyl cellulose, and hydroxyethyl methyl cellulose.

5. The method according to claim 1 , wherein, in the fluoroalkyl group-containing monomer (I), Y is an aliphatic group having 1 to 10 carbon atoms.

6. The method according to claim 1 , wherein the fluorine-free monomer (II) is at least one selected from the group consisting of ethylene, vinyl acetate, vinyl halide, vinylidene halide, acrylonitrile, styrene, polyethyleneglycol (meth)acrylate, polypropyleneglycol (meth)acrylate, methoxypolyethyleneglycol (meth)acrylate, methoxypolypropyleneglycol (meth)acrylate, vinyl alkyl ether, isoprene and a (meth)acrylate ester having an alkyl group.

7. The method according to claim 1 , wherein the crosslinkable monomer (III) is at least one selected from the group consisting of diacetoneacrylamide, (meth)acrylamide, N-methylol-acrylamide, hydroxymethyl (meth)acrylate, hydroxyethyl (meth)acrylate, 3-chloro-2-hydroxypropyl (meth)acrylate, N,N-dimethylaminoethyl (meth)acrylate, N,N-diethylamino-ethyl (meth)acrylate, butadiene, chloroprene and glycidyl (meth)acrylate.

8. The method according to claim 1 , wherein the fluorine-containing polymer consists essentially of the repeating units (I) and, (II) and/or (III).

9. The method according to claim 1 , wherein, in the fluoroalkyl group-containing monomer (I), the carbon number of the Rf group is from 1 to 6.

10. The method according to claim 1 , wherein
the fluorine-containing polymer consists of (I) the repeating unit derived from a monomer having a fluoroalkyl group and one or both of (II) the repeating unit derived from a fluorine-free monomer and (III) the repeating unit derived from a crosslinkable monomer.

11. The method according to claim 1 , wherein the fluorine-free monomer (II) is at least one selected from the group consisting of vinyl halide and vinylidene halide, and the amount of the repeating unit (II) is 0.5 to 80 parts by weight, based on 100 parts by weight of the repeating unit (I).

12. The method according to claim 1 , wherein the fluorine-free monomer (II) is vinyl chloride.

13. A textile obtained by the method according to claim 1 .

14. The textile according to claim 13 , which is a carpet.

15. The textile according to claim 14 , wherein the carpet comprises nylon fibers, polypropylene fibers and/or polyester fibers.

16. A treatment liquid for use in a method of treating a textile, comprising:
(i) a water- and oil-repellent agent which comprises a fluorine-containing polymer,
and (ii) a thermally gelling substance,
wherein the method comprises steps of:
(1) preparing the treatment liquid comprising the water- and oil-repellent,
(2) adjusting pH of the treatment liquid to at most 7,
(3) applying the treatment liquid to a textile,
(4) treating the textile with steam, and
(5) washing the textile with water and dehydrating the textile,
wherein the thermally gelling substance is at least one cellulose compound selected from the group consisting of methyl cellulose, hydroxypropyl methyl cellulose, hydroxyethyl methyl cellulose, ethyl cellulose, ethyl hydroxyethyl cellulose, and methyl hydroxypropyl cellulose,
the fluorine-containing polymer comprises:
(I) a repeating unit derived from a monomer having a fluoroalkyl group, and
(II) a repeating unit derived from a fluorine-free monomer, and/or
(III) a repeating unit derived from a crosslinkable monomer, and
the fluoroalkyl group-containing monomer is of the formula:

wherein X is a hydrogen atom, a methyl group, a fluorine atom, a chlorine atom, a bromine atom, a iodine atom, CFX 1 X 2 group (in which X 1 and X 2 are a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom or a iodine atom), a cyano group, a linear or branched fluoroalkyl group having 1 to 21 carbon atoms, a substituted or unsubstituted benzyl group, or a substituted or unsubstituted phenyl group,
Y is an aliphatic group having 1 to 10 carbon atoms, an aromatic group or cycloaliphatic group having 6 to 10 carbon atoms, a —SO 2 N(R 1 )CH 2 CH 2 — group (in which R 1 is an alkyl group having 1 to 4 carbon atoms) or a —CH 2 CH(OY 1 )CH 2 — group (in which Y 1 is a hydrogen atom or an acetyl group), and
Rf is a linear or branched fluoroalkyl group having 1 to 21 carbon atoms,
wherein the fluorine-c

Assignees

• Nakamura Hisako
• Usugaya Mitsuhiro
• Daikin Ind Ltd

Inventors

• Nakamura Hisako
• Usugaya Mitsuhiro

Classifications

• D06M13/236

  containing halogen atoms · CPC title

• Y10T428/23986

  With coating, impregnation, or bond · CPC title

• D06M15/09

  Cellulose ethers · CPC title

• D06M15/53 Primary

  Polyethers (polyacetals D06M15/39) · CPC title

• D06M15/263

  of unsaturated carboxylic acids; Salts or esters thereof · CPC title