CS253421B1 - A mixture for an elastic back layer of floor tufted textiles - Google Patents

Abstract

The solution relates to a composition for elastic backing of tufted flooring a water-containing fabric, fillers, softeners, thickeners, modifiers and optional other auxiliaries wherein 5 to 100 wt. the polymeric component of the composition is formed by a copolymer consisting of from 10 to 90 wt. vinyl chloride, 10 to 90% wt. acrylic and / or methacrylic acid ester % and from 0.5 to 15 wt. % acrylic acid, with 2.5 to 90 wt. the copolymer may be replaced by non-volatile component of latex butadiene styrene rubber that the content of the polymer component in the composition is at least 10 wt.

Description

BACKGROUND OF THE INVENTION The invention relates to a composition for the elastic backing of tufted flooring fabrics comprising water, fillers, wetting agents, thickeners, modifiers, and optionally other auxiliary agents, wherein 5 to 100 wt. % acrylic acid ester and / or measured with a copolymer consisting of 10 to 90 wt. % vinyl chloride, 10 to 90 wt. % of an acrylic and / or methacrylic acid ester, and 0.5 to 15 wt. % acrylic acid, wherein 2.5 to 90 wt. The copolymer may be replaced by a nonvolatile butadiene styrene rubber latex component such that the content of the polymer component in the composition is at least 10% by weight.

The essence of the methods used for the reverse treatment of textile flooring is to deposit a polymer-containing layer on the reverse side thereof. The latex polymer components must have sufficient adhesion to the textile fibers, the latexes must have stability to powder fillers, light densities with a small amount of thickener, optimally.

GDR pat. no. No. 156,612 discloses a composition for the reverse treatment of tufted flooring fabrics consisting of styrene-butadiene rubber latex and polyvinyl chloride powder. GDR pat. no. 155,887 discloses the preparation of heat-resistant latex-based backing layers of styrene-butadiene rubber, where in function! secondary vulcanization accelerators are used mercaptohenzothiazole derivatives with reduced sulfur content in the vulcanization system. US Pat. No. 4,104,213 discloses a carpet backing latex composition comprising a granulated, water-swollen starch which partially replaces a synthetic polymer while also having the function of a thickening agent. US Pat. no. No. 4,055,694 discloses the possibility of using a mixture of granulated acidified starch and borax in a ratio of 1.5: 1 to 12: 1 as a thickening agent and filler in carpet backing compositions. US Pat. no. No. 3,951,900 discloses a latex-based synthetic rubber latex paste for flame retardant treatment wherein alumina trihydrate is used as a filler. US Pat. no. No. 4,251,416 discloses calcium sulphate dihydrate as a flame retardant filler composition based on SBR rubber. A coating paste based on polyvinyl acetate is also known in which aluminum hydroxide is used as one of the fillers. Among other known methods of carpet backing are melt treatments of polyethylene, polypropylene and polyurethanes. (U.S. Pat. Nos. 3,914,489, 3,940,525, 3,887,738, Jap. Nos. 5,719,442 and 5,239,671. J

The disadvantage of the current state of the art is the water resistance and the low resistance to low temperatures at which the coating is brittle, in the case of reverse treatments with a polyvinyl acetate or polyvinyl alcohol base component.

The use of polyurethane increases the demands on the coating equipment and deteriorates the working environment. Reverse treatments based on melts of thermoplastics have limitations when using POP strips and increase the energy demands of the treatment. The use of special fillers, e.g. alumina, calcium sulfate, borax, starch, encounter difficulties due to their high sorption properties, which reduces the fillability of the composition with conventional fasteners and thus increases the economic cost of the treatment. Compositions containing styrene-butadiene latexes and powdered polyvinyl chloride free of vulcanizing additives have low adhesion to the textile backing and the film formed has low cohesion.

These and other disadvantages are solved by the present invention, according to which the composition for elastic backing of tufted flooring fabrics comprising water, fillers, plasticizers, thickeners, modifiers and optionally other auxiliaries has from 5 to 100% by weight. % of the polymer component of the copolymer composition comprised of 10 to 90 wt. vinyl chloride, 10 to 90 wt. % of an acrylic and / or methacrylic acid ester, optionally 0.5 to 15 wt. % acrylic acid, wherein 2.5 to 90 wt. The copolymer may be replaced by a non-volatile butadiene styrene rubber latex component such that the polymer component content of the composition is at least 10% by weight.

Advantages of the composition according to the invention are in achieving excellent anchoring strength of the hair and loop, in increasing the drying speed compared to the previously used aqueous systems for the application, excellent resistance to bending, non-sticking, elasticity, frost resistance, harmlessness, reverse treatment, as well as secondary laminating.

The subject matter of the invention is further illustrated, but not limited by the following examples.

Example 1

Composition for anesthetic reverse treatment of textile flooring, consisting of:

100 wt. parts by weight of an aqueous copolymer dispersion consisting of 35 wt. % vinyl chloride, 63 wt. % ethyl acrylate and 2 wt. % acrylic acid, with a non-volatile component content of 47% by weight;

0.15 wt. parts of silicone antifoam mass. % surfactant based on a mixture of oxyethylated glyceride and oxyethylated fatty alcohol mass; parts of monopropylene glycol mass. parts of finely ground limestone

Example 2

Composition for elastic backing of textile flooring, consisting of:

100 wt. % of butadiene-styrene latex with a non-volatile component content of 52 wt. and a bound styrene content of 27 wt.

0.15 wt. parts of silicone antifoam mass. parts by weight of a surfactant based on a mixture of oxyethylated glyceride and oxyethylated fatty alcohol; parts of monopropylene glycol mass. % by weight of an aqueous dispersion of a copolymer consisting of 35 wt. % vinyl chloride, 63 wt. % ethyl acrylate and 2 wt. % acrylic acid with a non-volatile component content of 47% by weight;

polyvinyl chloride powder having a K-value of 70 wt. parts by mass parts of a vulcanizing dispersion containing a non-volatile constituent of 62% by weight, containing sulfur, 2-mercaptobenzothiazole, zinc oxide, diethyldithiocarbamidate Zn, dimethyldithiocarbamidate Na, 2,6-di-tertiary butyl-4-methylphenol and condensate / β-naphthalenesulfonamide Na % of components: 3.75: 0.38: 5.07: 1.4: 1: 2.76: 0.35 100 wt. parts of very finely ground limestone

Example 3

A composition for the elastic backing of textile floor coverings, as in Example 1, except that the aqueous dispersion of the copolymer of Example 1 is replaced by an aqueous dispersion of a copolymer of 58% by weight. % vinyl chloride and 42 wt. % butyl acrylate, with a non-volatile component content of 45% by weight;

Example 4

A composition for the elastic backing of textile floor coverings as in Example 1, except that the aqueous dispersion of the copolymer of Example 1 is replaced by an aqueous dispersion of a copolymer consisting of 60% by weight. % vinyl chloride, 39 wt. 2-ethylhexyl acrylate and 1% acrylic acid.

SUBJECT

Claims (4)

SUBJECT A composition for the elastic reverse treatment of tufted flooring fabrics, comprising water, fillers, plasticizers, thickeners, roodifiers and, optionally, other auxiliaries, characterized in that 10 to 100 wt. the polymer component of the composition is a copolymer consisting of 10 to 90 wt. vinyl chloride; We claim: 90% wt. % of an acrylic and / or methacrylic acid ester; % of acrylic acid, 2.5 to 90 wt. The copolymer can be replaced by a non-volatile butadiene styrene rubber latex component such that the content of the polymer component in the composition is at least 10% by weight.