Appeal 2007-1888
Application 10/258,067
Claims 1 and 11 illustrate Appellants’ invention of a method of
preparing a treated textile and a water- and oil-repellent agent for use in the
method, and are representative of the claims on appeal:
1. A method of preparing a treated textile, comprising steps of:
(1) preparing a treatment liquid comprising a water- and oil-repellent
agent,
(2) adjusting pH of the treatment liquid to at most 7,
(3) applying the treatment liquid to a textile,
(4) subsequent to applying the treatment liquid, treating the textile
with steam, and
(5) washing the textile with water and dehydrating the textile,
wherein the water- and oil-repellent agent comprises at least one
fluorine-containing compound selected from the group consisting of a
fluorine-containing polymer and a fluorine-containing low molecular weight
compound, and the water- and oil-repellent agent or the treatment liquid
contains an organic salt which is a metal salt of an organic acid, provided
that if the organic acid is a carboxylic acid, the organic acid is at least one
selected from the group consisting of formic acid, acetic acid, oxalic acid,
phthalic acid, citric acid, propionic acid and butyric acid, and if the organic
acid is acetic acid, the metal salt of acetic acid is sodium acetate.
11. A water- and oil-repellent agent for use in a method of treating a
textile, comprising steps of:
(1) preparing a treatment liquid comprising a water- and oil-repellent
agent,
(2) adjusting pH of the treatment liquid to at most 7,
(3) applying the treatment liquid to a textile,
(4) subsequent to applying the treatment liquid, treating the textile
with steam, and
(5) washing the textile with water and dehydrating the textile,
wherein the water- and oil-repellent agent comprises at least one
fluorine-containing compound selected from the group consisting of a
fluorine-containing polymer and a fluorine-containing low molecular weight
2
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Last modified: September 9, 2013