Carpets having stain resistant pile fibers and a backing that is substantially impervious to water are described. The imperviousness of the backing prevents water from passing through the carpet and into the underpad where its presence causes rotting and mildewing of the underpad and carpet components, and thus, permits the carpet to be washed with generous amounts of water without wetting the underpad. Also, aqueous substances which spill onto the carpet will not penetrate the carpet and wet the underpad.
A method of imparting stain resistance to colored substrates which include a filamentary material is disclosed. A first dispersion of a polymer is applied to the filamentary material as a finish during the manufacture of the filamentary material, and a second dispersion of a polymer is applied as an overspray after the filamentary material has been formed into a colored substrate, to achieve at least 300 ppm fluorine from each application on the filamentary material (at least 600 ppm fluorine total). The dispersions are independently selected from the group consisting of i. a first polymer comprising (a) from about 50 to about 85 parts by weight of units derived from a fluorinated monomer or mixture of fluorinated monomers having the formula ##STR1## (b) from about 15 to about 50 parts by weight of units derived from one or more monomers having the formula ##STR2## ii. a dispersion comprising (a) from about 10 to about 50 parts by weight the first polymer; (b) from about 5 to about 10 parts by weight an emulsifier; and (c) from about 40 to 85 parts by weight a second polymer derived from a monomer having the formula ##STR3## wherein R.sub.f is straight or branched-chain perfluoroalkyl containing 4-20 carbon atoms; R is H or CH.sub.3 ; n is an integer from 1-15; and X is Cl or Br.
This invention relates to methods for making a carpet having a secondary backing which is substantially impervious to aqueous solutions. The process involves applying a fluorochemical onto the underside of a secondary backing material, followed by drying and curing of the fluorochemical. This invention also includes the resultant carpets prepared from such a process.
Nylon carpet fibers are provided which resist staining by acid dye colorants at room temperature, yet are dyeable at elevated temperatures with acid dyes without losing their resistance to acid dye colorants at room temperature. The fibers are characterized by having a coating on the surface thereof comprising one or more selected compounds (stain blockers). Carpets comprising the fibers resist staining when exposed for long periods of time to spills containing acid dye colorants. By also including a fluorochemical in the coating, the carpets can resist such staining even after being subjected to heavy human trafficking.
A method of producing carpet having the steps of: providing a carpet having a pile side formed from yarn fibers projecting through a primary backing layer, and an underside region comprising back stitch yarn fibers and the primary backing layer; applying effective repellency enhancing amounts of a first repellency enhancing compound to the pile side; applying a liquid repellency enhancing compound to the underside region to provide improved liquid barrier properties in the region; and applying separately a coating or latex layer to the underside region.
A composite floor covering having an upper layer of a decorative fabric, a dimensionally stabilizing intermediate layer, and an optional lower cushioning layer has at least the upper surface of the decorative fabric coated with a protective polymeric coating in a manner such that the hand of the decorative fabric layer is substantially retained. The materials of the fabric layer, stabilizing layer, and cushioning layer (if provided) as well as the form of attachment therebetween, cooperate to render the floor covering substantially impervious to liquid.
