Aqueous finishing agent and process for a soft hand, water and oil repellent treatment for fibrous materials: perfluoro-aliphatic agent, polyethylene and modified hydrogen-alkyl-polysiloxane

摘要

An aqueous finishing agent for providing fibrous materials with a soft water and oil repellent treatment is provided. The finishing agent comprisesPPA) 25 to 65% by weight of a perfluoroaliphatic group-bearing water/oil-repellent agent (at least 5% by weight fluorine) in dispersion,PPB) 10 to 35% by weight of a dispersion of an emulsifiable polyethylene (density at 20 C. at least 0.92 g/cm. sup.3, acid number at least 5) andP PC) 25 to 40% by weight of a fluorine-free dispersion of a soft-hand extender based on a modified hydrogen alkyl polysiloxane. A process for providing fibrous materials with a soft water and oil repellent treatment is also provided. The finishing agent provides fibrous material with excellent properties which are resistant to washing and dry cleaning and a particularly smooth, soft hand.