US 12,441,958 B2
Method for treating textile product
Ayako Kita, Wakayama (JP); Yoshinori Otani, Wakayama (JP); and Yuna Muneyuki, Wakayama (JP)
Assigned to KAO CORPORATION, Tokyo (JP)
Appl. No. 18/269,313
Filed by KAO CORPORATION, Tokyo (JP)
PCT Filed Dec. 23, 2021, PCT No. PCT/JP2021/047860
§ 371(c)(1), (2) Date Jun. 23, 2023,
PCT Pub. No. WO2022/138818, PCT Pub. Date Jun. 30, 2022.
Claims priority of application No. 2020-217302 (JP), filed on Dec. 25, 2020; and application No. 2020-217303 (JP), filed on Dec. 25, 2020.
Prior Publication US 2024/0060005 A1, Feb. 22, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. C11D 1/14 (2006.01); C11D 1/72 (2006.01); C11D 1/83 (2006.01)
CPC C11D 1/143 (2013.01) [C11D 1/72 (2013.01); C11D 1/83 (2013.01); C11D 2111/12 (2024.01)] 8 Claims
 
1. A method for treating a textile product comprising, treating the textile product with a treatment liquid and thereafter rinsing the textile product with water, the treatment liquid being obtained by mixing the following components (a) and (b) with water containing a hardness component, provided that the treatment liquid does not include a total of 100 ppm or more of a dicarboxylic acid with 14 or more and 16 or less carbons and a salt thereof,
component (a): a compound comprising a cation and bis-2-propylheptyl sulfosuccinate as an anion; and
component (b): one or more surfactants selected from the following components (b1) and (b2),
component (b1): at least one anionic surfactant (excluding component (a)) selected from the group consisting of:
a sodium polyoxyalkylene alkyl ether sulfate,
a (polyoxypropylene) polyoxyethylene lauryl ether sulfate sodium salt,
a sodium alkylbenzene sulfonate, and
an internal olefin sulfonate potassium salt, and
component (b2): one or more nonionic surfactants selected from the group consisting of:
a polyoxyethylene mixed-alkyl ether,
a polyoxyethylene-polyoxypropylene-polyoxyethylene mixed-alkyl ether, and
a polyoxypropylene-polyoxyethylene mixed-alkyl ether,
wherein the treatment liquid satisfies at least one of the following requirements (1) and (2),
requirement (1): a proportion of a content of the component (a) to a total content of the components (a) and (b1) in the treatment liquid is 2.5 mass % to 50 mass %, and
requirement (2): a proportion of a content of the component (a) to a total content of the components (a) and (b2) in the treatment liquid is 10 mass % to 45 mass %.