| 摘要 |
A soil-repellent treatment method for articles based on woven cotton, wherein an amphiphilic soil-repellent agent soluble or dispersible in the treatment medium is deposited on the article during one or more washing, rinsing and/or softening or drying steps, is disclosed. Said soil-repellent agent comprises at least one unit with a function (FAd) capable of being adsorbed onto the surface of the cotton by electrostatic interaction; and at least one hydrophobic unit (MH) capable of configuring said agent at the cotton/water interface. Said unit (MH) may itself be one of the components of the unit having said function (FAd) or may be chemically bonded thereto via a hydrophilic chain. Said soil-repellent agent is added during the washing step by means of a washing composition, during the rinsing and/or softening step by means of a rinsing and/or softening composition, and during the drying step by means of an absorbent carrier. A soil-repellent agent comprising at least one unit with a cationic function (MC) capable of being adsorbed onto the surface of the cotton, and the counter-ion thereof, as well as at least one hydrophobic unit (MH) containing at least four carbon atoms chemically bonded to the unit having said cationic function (MC) via an oligomeric, polymeric or copolymeric vinyl alcohol chain, is also disclosed.
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