FR2701037A1 - Detergents for textile articles made of poly(vinyl chloride) fibres - Google Patents

Abstract

Halide-free textile detergent for a textile material made of poly(vinyl chloride) fibres, characterised in that it contains, as microbicide, didecylmethylalkoxyammonium propionate, (coconut propylenediamine)guanidinium acetate and/or bis(3-aminopropyl)dodecylamine and, in the washing solution, at least 0.05 % of triethanolamine salt of C8-C22 fatty acids.

Description

DETERGENTS FOR TEXTILE ARTICLES IN
VINYL POLYCHLORIDE FIBERS.

Polyvinyl chloride fibers are noncombustible and have exceptionally high chemical resistance to detergents and acids. Because of these properties, protective clothing for industrial workers is made from polyvinyl chloride fibers. For this, use is preferably made of superchlorinated polyvinyl chloride. The fibers made from it are referred to as PeCe fibers, while the commercial products obtained from these fibers are known as
Clevyl, Movil and Vinylon.

 Despite the particularly high chemical resistance of polyvinyl chloride fibers, their use and washing pose problems. The undyed, white fiber becomes colored by the action of various constituents of detergents during the washing process and can take on colors ranging up to dark brown. By the action of soiling, colorations appear in the form of spots, in various shades of brown.

 These brown colors can generally be completely eliminated, by treatment with a solution of sodium hypochlorite by operating by immersion.

However, such treatment methods are today undesirable, since the chloride-containing waste water which forms is difficult to treat even after neutralization of the active chlorine which it contains with hydrogen peroxide. Due to their polluting load on water, chloride waste water must not be sent to the collector, but must be treated. During the treatment of waste water by the evaporator process, chlorinated waste water produces localized corrosion on stainless steel and various other materials.

 In this respect, cleaning white protective and work clothing made of polyvinyl chloride fibers requires a detergent of particular composition to prevent such colorings and to remove the colorations which appear during the washing operation by the action of soiling without 'a special post-treatment is necessary.

 As the polyvinyl chloride fiber begins to soften when the temperature increases, the washing operation must not exceed a temperature of 60 "C, otherwise there will be a deformation of the textile material.

 In order to be able to carry out the treatment by the evaporator method, the detergent formulas intended for this application may have maximum halide contents up to 100 ppm.

 For hygienic reasons, it is recommended to additionally add the detergent for washing protective work clothes with a disinfectant component. But microbicides are also among the constituents that give brown polyvinyl chloride fibers. In contrast, electrolytes, nonionic and cationic surfactants, as well as alcohols and ethers generally do not color polyvinyl chloride fibers.

 As active chloride-free microbicides, didecyl-methyl-alkoxy-ammonium propionate (1), (coconut propylenediamine) -guanidinium acetate (2 and bi) can be used for the washing of textiles. - (3-aminopropyl) dodecylamine (3), but these disinfectants strongly color the polyvinyl chloride fibers.

 It has now been surprisingly found that a detergent preparation consisting of nonionic and anionic surfactants as well as electrolytes on the one hand, and chloride-free microbicides such as propionate didecyl-methyl-alkoxyammonium, copra (propylenediamine acetate) guanidinium acetate and / or bis (3-aminopropyl) dodecylamine on the other hand, do not give any color to the textile material when washing the polyvinyl chloride fibers when adding triethanolamine soap to the preparation.

 C18-C22 fatty acids neutralized by triethanolamine have been shown to be active. To these belong fatty mixtures of copra, palm kernel, oleic acid, fatty acids from rapeseed, soy, castor or tallow. It is immaterial whether fatty acids neutralized by triethanolamine saturated or unsaturated are used here.

 The following examples are given in support of the preparations of the invention.

As the ordinary detergent, a preparation consisting of
10.00% oleyl-cetyl alcohol-80E
2.50% sodium (etherlauryl) carboxylate
5.00% tetrasodium diphosphate
5.00% pentapotassium triphosphate
77.50% distilled water.

 To this preparation was added 1.00% of dodecylmethyl-alkoxy-ammonium, acetate of (coconut propylenediamine) -guanidinium or bis (3-aminopropyl) dodecylamine.

The degree of coloration of the polyvinyl chloride fabric was determined with the addition of triethanolamine soap when stored in a 1% solution of the detergent preparation.

 The following table gives the results of these studies. By adding at least 0.05% of triethanolamine salt of C8 -C22 fatty acids i the preparation of detergent, consisting of anionic and nonionic surfactants and electrolytes as well as didecyl propionate -methyl-alkoxy-ammonium, acetate of (coconut propylenediamine) -guanidinium and / or bis (3aminopropyl) dodecylamine as microbicides, the degree of white of the material washed in polyvinyl chloride fibers remains unchanged.

 As anionic surfactants, it is possible to envisage: the salt of the acid (lauryl ether), carboxylic, the sodium salts of the sec-alkane sulfonates1 the sodium salts of the alkyl sulfates, the sodium salt of the (lauryl ether ) sulfate or the sodium salts of alkylbenzenesulfonic acids t as non-ionic surfactants, alkylpolyglycolic ethers based on saturated or unsaturated fatty alcohols with 2 to 20 moles of ethylene oxide (EO) are used. fatty alcohol; as electrolytes, the alkalines of the di- or triphosphoric acids are used, hydroxyethanediphosphonic acid, ethylenediamine tetra (methylenephosphonic acid), nitrilotriacetic acid or ethylenediamino t6tracetic acid.

 Synergistic effects are obtained as regards detergency with alcohols such as ethanol, isopropanol, propylenediglycol, 1-methoxy-propanol-2 or limonene.

Board
Additive Test Results n "
1 1.00% ordinary detergent none
without addition of coloring microbicide
2 0.01% microbicide 1
Didecyl-methyl propionate - staining
dark brown alkoxy ammonium
3 0.01% microbicide 2
(Propylenediamine acetate staining
copra) dark brown guanidinium
4 0.01% microbicide 3 staining
Bis (3-aminopropyl) dodecylamine light brown
5 0.01% microbicide 1
Didecyl-methyl propionate
alkoxy ammonium
0.15% triethanolamine salt of none
oleic acid coloring
6 0.01% microbicide 2
(Propylenediamine acetate
copra) guanidinium
0.15% triethanolamine salt none
coconut fatty acids coloring
7 0.01% microbicide 3
Bis (3-aminopropyl) dodecylamine
0.10% triethanolamine salt none
rapeseed fatty acids coloring
8 0.01% microbicide 3
Bis (3-aminopropyl) dodecylamine
0.05% triethanolamine salt none
coconut fatty acids coloring

Claims (2)

 1. Halide-free textile detergent for a textile material made of polyvinyl chloride fibers, characterized in that it contains, as microbicide, didecyl-methyl-alkoxy-ammonium propionate, acetate (copra propylenediamine) -guanidinium and / or bis (3-aminopropyl) dodecylamine and, in the washing solution, at least 0.05% of triethanolamine salt of fatty acids  2. Detergent according to claim 1, characterized in that the triethanolamine salts of the fatty acids in -C, are chosen from fatty acids from coconut, palm kernel, oleic acid, fatty acids from rapeseed, soybeans, castor or tallow.