TEPPICHUNTERLAGE

摘要

1419948 Carpet underlays UNIROYAL LTD 8 Jan 1973 [13 Jan 1972 25 April 1972] 1632/72 and 19083/72 Heading B2E [Also in Division B5] Carpet underlay comprises a cellular natural or synthetic rubber sheet backed by a creped paper sheet reinforced with textile fibres, e.g. polyamide, viscose, jute. The assembly may be formed by doctoring a foam rubber latex on to the backing, gelling the foam and curing it in an oven. The rubber sheet may be plain or may have a three-dimensional surface effect. The reinforcing fibres may constitute warp and weft fibres warp fibres alone, or non-woven or woven fabrics and may be secured to one face of the paper by stitching and/or adhesive before the rubber sheet is applied to the other face. In specified constructions, (a) weft fibres are laid on the paper, warp fibres are stitched thereover and a light adhesive coating is applied to the stitching, and (b) the paper is coated with adhesive and pressed with a spun-bonded web or a reinforced lightweight web; the adhesive may be acrylic adhesive, polyvinyl acetate latex or carboxylated styrene-butadiene latex and may be appied by roller, spray or brush. The paper maye be treated for water-repellency, flame-resistance and mildew-resistance and may be creped in a single direction, e.g. that of the weft fibres if used or cross-creped.