GB1188131A - Treatment of Textiles and Compositions therefor - Google Patents

Abstract

1,188,131. Disinfecting textiles. MONSANTO CO. 18 April, 1967 [18 April, 1966], No. 17790/67. Heading A5E. [Also in Divisions C5 and D1] Textile materials treated with a polymeric material having in its molecule NH groups are sterilized or disinfected by applying thereto an aqueous solution of a composition comprising an intimate mixture of (a) a polychlorocyanurate containing in its structure a metal cation, at least one isocyanurate or cyanurate ring and at least two chlorine atoms and (b) an organic compound having in one tautomeric form the structural formula: in which R is an oxygen atom or NH group and X is: in which R' is a hydrogen atom or alkyl radical having 1-10 carbon atoms, the mole ratio of (a) to (b) being from 1:0.5 to 1:6. The textile material may comprise cotton, nylon, viscose rayon, polyester, hemp, linen, jute or blends thereof in the form of fibres, yarn, roving, sliver or woven or non-woven fabric and may have applied thereto 0.25-10% by weight of a resin produced by the reaction of formaldehyde with urea, melamine, pyrimidone, ethylene urea, guanidine, a sulphonamide, a triazine, dicyandiamide or a carbamate. The polychlorocyanurate (a) may be sodium or potassium dichloroisocyanurate or a hydrate thereof [(monotrichloro) (monopotassium dichloro)] diisocyanurate, [(monotrichloro) tetra (monopotassium dichloro)] pentaisocyanurate, magnesium or calcium di(dichloroisocyanurate) or a hydrate thereof, monomagnesium. dipotassium tetra (dichloro cyanurate) or a hydrate thereof, mono zinc dipotassium tetra (dichlorocyanurate) or a hydrate thereof, mono magnesium dirubidium tetra (dichlorocyanurate) or a hydrate thereof or monozinc dirubidium tetra (dichlorocyanurate) or a hydrate thereof. The organic compound (b) may be cyanuric acid, a monoalkyl cyanurate, ammelide, alkyl ammelide, ammeline, alkyl ammeline, diketo triazine, diamino triazine or amino-keto triazine. The treating composition may also contain trisodium or tripotassium phosphate, disodium or dipotassium hydrogen phosphate, tetrasodium or tetrapotassium pyrophosphate, trisodium hydrogen pyrophosphate, sodium or potassium tripolyphosphate, sodium hexametaphosphate, an alkali metal silicate having an alkali metal oxide to silica mol ratio of 1:1 to 1:3.6, calcined sodium tetraborate or borax, sodium or potassium carbonate or bicarbonate, sodium sulphate or chloride, a perfume, ethylene diamine tetra-acetic acid, an organic dye, an anionic surfactant, e.g. a sulphated or sulphonated alkyl, aryl or alkylaryl hydrocarbon, a non- ionic surfactant, e.g. a polyalkylene oxide derivative of an alcohol, phenol, amide, primary or secondary amine or carboxylic acid, or a cationic surfactant. The treating compositions may be mixed as solid particles to obtain a free-flowing mixture, compressed to form cakes or cubes or dissolved or slurried in water to obtain aqueous slurries or solutions which may either be drum dried to obtain flakes which may be ground to powder form or spray dried in the form of beads or hollow spheres, prior to dispersing them in water to form the treatment bath which preferablyhas a pH of 0.25-10.5, and may be used at 5‹-75‹C., for 5-15 minutes.