Patent GB-431016-A (GB)
Title: Improvements in the manufacture of treatment of filaments, threads, ribbons and other textile materials
IPC: D06M13/224
Filed: 1934-09-14
Abstract: A process for improving the properties of filaments, threads, yarns, ribbons, and other textile materials particularly those materials having a basis of an organic derivative of cellulose such as cellulose acetate comprises treating them with a polymerized oil.  A suitable oil is polymerized castor oil, and the polymerization is most easily effected in the presence of a catalyst such as cobalt, cerium, vanadium or boric acid.  The catalyst need not be removed from the polymerized oil before use. The polymerized oil, e.g. as a solution in butyl acetate may be added to a spinning solution for making artificial materials, in general 1--20 per cent of the weight of the solid content of the spinning solution being suitable.  The spinning solution may also contain lubricants, pigments, filling materials, dyes, lakes or fire resistants such as b -chlor-naphthalene, triphenyl phosphate and tricresyl phosphate.  The polymerized oil may also be applied to formed materials which may, if desired, be swelled first.  The polymerized oil may be used in conjunction with stearates, oleates or palmitates of glycols, glycerol or triethanolamine or wax-like ethers of glycol or glycerol, the percentage of polymerized oil in the mixture preferably ranging from 25--75.  In an example 10 per cent of polymerized castor oil containing the boric acid catalyst is added to a 26 per cent solution of cellulose acetate in acetone, and the solution is spun or cellulose acetate yarn is either treated at the spinning cabinet by means of a roller with a 50 per cent solution of polymerized castor oil containing boric acid in mono-ethyl ether of ethylene glycol, or is finished with 5 per cent of a 50 per cent mixture of polymerized castor oil with diglycol stearate applied from a 35 per cent solution in butyl acetate at 50 DEG  C.  The Specification as open to inspection under Sect. 91 comprises also the manufacture or treatment of films.  This subject-matter does not appear in the Specification as accepted.ALSO:A process for improving the properties of filaments, threads, yarns, ribbons, and other textile materials particularly those materials having a basis of an organic derivative of cellulose such as cellulose acetate comprises treating them with a polymerised oil.  A suitable oil is polymerised castor oil, and the polymerisation is most easily effected in the presence of a catalyst such as cobalt, cerium, vanadium or boric acid.  The catalyst need not be removed from the polymerised oil before use. The polymerised oil may be applied to formed materials which may if desired be swelled first.  The polymerised oil may be used in conjunction with stearates, oleates or palmitates of glycols, glycerol or triethanolamine or wax-like ethers, of glycol or glycerol, the percentage of polymerised oil in the mixture preferably ranging from 25-75.  In an example cellulose acetate yarn is either treated at the spinning cabinet by means of a roller with a 50 per cent solution of polymerised castor oil containing boric acid in mono-ethyl ether of ethylene glycol, or is finished with 5 per cent of a 50 per cent mixture of polymerized castor oil with diglycol stearate applied from a 35 per cent solution in butyl acetate at 50 DEG  C.