Patent GB-703499-A (GB)
Title: Improvements in and relating to the processing of textile yarns, threads, filaments and the like
Inventor: WINSOR PHILIP ALAN
IPC: D06M13/432
Filed: 1951-05-17
Abstract: The development of electrostatic charges on textile yarns, threads or filaments during processing is reduced by applying, either prior to or during the processing, an organic compound free from sulphonic acid groups and containing the atomic grouping <FORM:0703499/IV(c)/1> wherein R is an organic radical, X is oxygen, sulphur or an imino group and m is 0 or 1, in an amount sufficient to neutralize substantially the electrostatic charge developed.  The compounds, which may be applied in admixture and in solution in inorganic or organic solvents, e.g. water, aqueous acetic acid, mineral oils, alcohols, ketones or mixtures thereof, or as an aqueous emulsion, include substituted isoureas, isothioureas, guanidines, iminazoles, imidazolines and pyrimidines, specified examples of which are 0-ethylurea, S-dodecylthiourea, 1-guanidino-palmitic acid, 1-hydroxyethyl guanidine, 2- undecylimidazoline, 1-b -hydroxyethyl-2-heptadecyleneimidazoline, 2-naphthenylimidazoline, 2-heptadecylbenziminazole, 2-undecylpyrimidine and 1-benzyl-2-heptadecylbenziminazole.  The compounds may be employed as salts with inorganic or organic acids, e.g. hydrochloric, acetic, stearic or oleic acid.  The compounds are preferably compounded with a lubricating composition comprising a mineral lubricating oil and an oil-soluble organic compound containing an alcoholic hydroxyl group, e.g. octanols, nonanols, decanols, undecanols, sperm oil fatty alcohols, benzyl alcohol, methylcyclohexanol, hexylene - octylene - decylene and higher glycols, glyceryl mono- or di-oleate or stearate, ethylene glycol mono-oleate or stearate, and the mono-esters or ethers of polyethylene glycols, e.g. the mono-oleate or stearate of nonaethylene glycol, the composition being applied as a readily scourable aqueous emulsion.  To the composition alcohols of less than 8 C atoms, e.g. isopropyl, butyl and diacetone alcohol and the lower mono-ethers of ethylene glycol, such as the monobutyl ether of ethylene glycol, may be added.  The process is particularly applicable to nylon yarns but may be applied also to fibres or yarns of silk, wool, regenerated cellulose, cellulose formate, acetate or propionate, methyl or ethyl cellulose, polyvinyl chloride, chlorinated polyvinyl chloride, vinyl chloride-vinyl ester interpolymers, polymethacrylic esters, polyacrylonitrile, polyethylene and condensation products of polycarboxylic acids and polyhydric alcohols or alkylene oxides. Examples are given.ALSO:A lubricating composition for textiles, which is preferably applied as a readily scourable aqueous emulsion, comprises a mineral lubricating oil, an oil-soluble organic compound containing an alcoholic hydroxyl group and, as an antistatic agent, an organic compound free from sulphonic acid groups and containing the grouping <FORM:0703499/III/1> where R is an organic radical, X is oxygen or sulphur or an imino group and m is 0 or 1.  Specified anti-static agents, which may be employed as salts with organic or inorganic acids, e.g. hydrochloric, acetic, stearic or oleic acid, are O-ethylurea, S-dodecyl thiourea, 1-guanidinopalmitic acid, 1-hydroxyethyl guanidine, 2-undecylimidazoline, 1-b -hydroxyethyl-2 p heptadecylene-imidazoline, 2-naphthenylimidazoline, 2-heptadeclbenziminazole, 2 - undecylpyrimidine and 1-benzyl-2-heptadecylbenziminazole.  Specified organic compounds containing alcoholic hydroxyl groups are octanols, nonanols, decanols, undecanols, sperm oil fatty alcohols, benzyl alcohol, methylcyclohexanol, hexylene-, octylene-, decylene- and higher glycols, glyceryl mono- or di-oleate or stearate, ethylene glycol mono-oleate or stearate, and the mono-esters or ethers of polyethylene glycols, e.g. the mono-oleate or stearate of nonaethylene glycol.  Alcohols of less than 8 carbon atoms, e.g. isopropyl, butyl and diacetone alcohol and the lower monoethers of ethylene glycol, such as the monobutyl ether of ethylene glycol, may be added as additional ingredients.