Patent GB-1041271-A (GB)
Title: Process for modifying the properties of textile materials
Inventor: BAIRD WILLIAM
IPC: D06M13/46
Filed: 1962-09-21
Abstract: A composition suitable for lubricating polypropylene filament yarn comprises a silicone lubricating fluid having a viscosity at 25 DEG C. between 1000 and 200,000 centistokes, and a quaternary ammonium compound of the formula <FORM:1041271/C4-C5/1> in which X - is a nitrite, carbonate, bicarbonate, tetraborate, silicate or hydroxyl anion, R1 is an alkyl or alkenyl group containing 8-22 carbon atoms, R2 and R3 are alkyl groups containing not more than 4 carbon atoms, aralkyl groups or hydroxy substituted alkyl groups containing not more than 4 carbon atoms and R4 is an alkyl or alkenyl group containing 1-22 carbon atoms, an aralkyl group or an hydroxy substituted alkyl group containing not more than 4 carbon atoms, or R2 and R3 together or R2, R3 and R4 together form part of a heterocyclic ring which is completed by the nitrogen atom.ALSO:Textile materials, e.g. polyethylene terephthalate, polyamide, polypropylene, polyacrylonitrile and cotton fibres, are rendered antistatic and dyes applied thereto are fixed by treating them with a corrosion inhibiting quaternary ammonium compound having the formula <FORM:1041271/D1-D2/1> in which X is a nitrite, carbonate, bicarbonate, tetraborate, silicate or hydroxyl anion, R1 is an alkyl or alkenyl group containing 8-22 carbon atoms, R2 and R3 are alkyl groups containing not more than 4 carbon atoms, aralkyl groups or hydroxy substituted alkyl groups containing not more than 4 carbon atoms and R4 is an alkyl or alkenyl group containing 1-22 carbon atoms, an aralkyl group or a hydroxy substituted alkyl group containing not more than 4 carbon atoms, or R2 and R3 together or R2, R3 and R4 together form part of a heterocyclic ring which is completed by the nitrogen atom.  The quaternary ammonium group may be cetyl trimethyl ammonium, cetyl pyridinium, N-cetyl-N-ethyl morpholinium, lauryldimethyl benzyl ammonium, tetradecyl dimethyl-(B-hydroxyethyl) ammonium, dilauryl dimethyl ammonium, N-cetyl-N-(B-hydroxyethyl) morpholinium, octadecyldimethylethyl ammonium, stearyl dimethyl (B-hydroxyethyl) ammonium, dodecyl dimethylbenzyl ammonium or tetradecyl dimethyl benzyl ammonium. The quaternary ammonium compound may be applied to the textile materials as an aqueous solution by padding or spraying at normal or elevated temperatures and then dried so that 0.05 - 1% by weight of the compound is applied to the material.  A suitable spin finish for polypropylene spun filament yarn comprises a silicone lubricating fluid having a viscosity at 25 DEG C of 1,000-200,000 centistokes and the quarternary ammonium compound. The polypropylene yarns after treatment may be used to make fish nets, ropes, vegetable protection nets, laundry bags, hair wigs, carpets, blankets and pile fabrics. The quarternary ammonium compounds may be prepared from other quarternary ammonium salts, e.g. the halides, by ion exchange or by meta-salts, e.g. the halides, by ion exchange or by metathesis. Complete conversion of the other quaternary ammonium salts is not necessary and compositions in which more than 15% of the other quarternary ammonium salt has been converted may be used.