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US 9,945,069 B2Granted
Treatment comprising water- and oil-repellent agent
AssigneeDaikin Industries, Ltd.
InventorsHisako Nakamura, Mitsuhiro Usugaya
Life of this patent
Estimating the term…
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.
Claims27
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, CFX1X2 group (in which X1 and X2 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 —SO2N(R1)CH2CH2— group (in which R1 is an alkyl group having 1 to 4 carbon atoms) or a —CH2CH(OY1)CH2— group (in which Y1 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.
16 more elements
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, CFX1X2 group (in which X1 and X2 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 —SO2N(R1)CH2CH2— group (in which R1 is an alkyl group having 1 to 4 carbon atoms) or a —CH2CH(OY1)CH2— group (in which Y1 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-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.
18 more elements
Dependencies are inferred from the claim text.