Patent GB-942131-A (GB)
Title: Dyeable fibres containing basic organic nitrogen compounds and processes for preparing same
IPC: D06M13/11
Filed: 1960-04-19
Abstract: Fibres made by extrusion of a composition comprising a synthetic fibre-forming polymer or copolymer and a basic organic nitrogen compound are treated with a monomeric diepoxy compound, to enhance their receptivity for dyes. Specified polymers include crystalline polyolefins e.g. polyethylene or polypropylene made with sterospecific catalysts, and acrylonitrile and vinyl chloride polymers and copolymers.  The basic organic nitrogen compound may be a polyalkyleneimine, specified compounds including polyethyleneimine, a polyamine made by condensation of dichloroethane and diethylene-triamine, and one made by the action of heat on e -aminocaproic acid.  The diepoxy compound may be of the general formula:- <FORM:0942131/C3/1> where A is either nil or an aliphatic or aromatic divalent group which may contain oxygen. Specified divalent groups include methylene, ethylene, propylene and phenylene groups, or groups of the type:-CH2-, -CH2-CH2 &c. -CH2-O-CH2-CH2-O-CH2-CH2-O-CH2 -CH2-CH2-O-CH2-CH2-O-CH2-O-CH2 -CH2-O-C6H4-O-CH2-CH2-O-CH2 -C6H4-CH2-O-CH2- <FORM:0942131/C3/2> and diepoxy compounds specified include diepoxy hydrocarbons e.g. diepoxybutane and diepoxypentane, ethylene glycol diglycidyl ether and the diglycidyl ether of 4-41-dihydroxydiphenyldimethylmethane. The diepoxy compound may be applied batchwise or continuously, and either before or after stretching the fibres. It may be applied in solution or dispersion in water, in the anhydrous state, or in solution in an organic solvent having in the warm a swelling or dissolving action on the fibres, e.g. an aliphatic hydrocarbon, halogenated hydrocarbon, alcohol, ester or ether. Fibres may be subjected to the action of the diepoxy compound for times varying from a few seconds to 2 or 3 hours, at temperatures varying from room temperature to 10 DEG C. below the softening point of the synthetic polymer or copolymer. Specification 873,830 is referred to.ALSO:The receptivity for dyes of fibres made by extrusion of a composition comprising a synthetic fibre-forming polymer or copolymer and a basic organic nitrogen compound is enhanced by treatment with a monomeric di-epoxy compound.  Specified polymers include crystalline polyolefins e.g. polyethylene or polypropylene made with stereospecific catalysts, and acrylonitrile and vinyl chloride polymers and copolymers.  The basic organic nitrogen compound may be a polyalkyleneimine, specified compounds including polyethyleneimine, a polyamine made by condensation of dichloroethane and diethylenetriamine, and one made by the action of heat on e -aminocaproic acid.  The di-epoxy compound may be of the general formula:-  <FORM:0942131/D1-D2/1> where A is either nil or an aliphatic or aromatic divalent group which may contain oxygen. Specified divalent groups include methylene, ethylene, propylene and phenylene groups, or groups of the type:-  -CH2-,-CH2-CH2- &c. -CH2-O-CH2-CH2-O-CH2-CH2-O -CH2-CH2-CH2-O-CH2-CH2-O -CH2-O-CH2-CH2-O-C6H4-O -CH2- <FORM:0942131/D1-D2/2> and di-epoxy compounds specified include di-epoxy hydrocarbons e.g. di-epoxybutane and di-epoxypentane, ethylene glycol diglycidyl ether and the diglycidyl ether of 4-41-dihydroxydiphenyldimethylmethane.  The di-epoxy compound may be applied batchwise or continuously, and either before or after stretching the fibres.  It may be applied in solution or dispersion in water, in the anhydrous state, or in solution in an organic solvent having in the warm a swelling or dissolving action on the fibres, e.g. an aliphatic hydrocarbon, halogenated hydrocarbon, alcohol, ester or ether.  Fibres may be subjected to the action of the di-epoxy compound for times varying from a few seconds to 2 or 3 hours, at temperatures varying from room temperature to 10 DEG C. below the softening point of the synthetic polymer or copolymer.  Receptivity to acid, metallised, chrome, vat and cellulose acetate disperse dyes is enhanced, the colour fastness to washing and rubbing and handle of the treated fibres also being improved.  Specification 873,830 is referred to.