is continuously foamed mechanically in a commercially available mixer with out the addition of a foaming agent the foam is produced in the mixing head by mixing the liquor with air the foam which emerges is conveyed via a foam line to a discharge slot in the applicator the goods are pressed against the slot and taken off via a separate unit for example a stenter frame in example 1 a concentration of 98 npb and 2 perfluoroalkyl polyacrylate were used the experiments were carried out on the gaston systems inc foam applicator stanly n c by the invention it has been discovered surprisingly that a mixture of npb and perfluoroalkyl polyacrylate can be foamed with or without the aid of a foaming agent example 1 not using foaming agents greatly improves the benefit of the applied fluorine composition to the substrate and reduces the amount of compound added to fabric to achieve water and oil repellency in another aspect this invention involves the surprising discovery that the use of npb applied in 100 concentration via dipping and squeezing with pressure rollers padding and the npb being evaporated away imparts a much improved softness and luster to textile substrates especially home furnishing apparel fabrics and upholstery fabrics after the treatment the textiles preferably home textiles are dried it being possible to use temperatures of 120 degree to 170 degree c to achieve the desired treatment effect according to.