Patent GB-190208509-A (GB)
Title: Improvements in the Treatment of Raw Cotton and Cotton Goods to Reduce the Inflammability thereof.
Filed: 1902-04-11
Granted: 1903-04-09
Abstract: 8509. Perkin, W. H., and Whipp Bros. & Tod. April 11. Fireproofing fibres.-Relates to improvements on the inventions described in Specifications Nos. 9695 and 23,557, A.D. 1901, and consists in treating the goods (A) with a solution of one or more soluble metallic salts, such as zinc or aluminium acetate or copper or nickel sulphate ; (B) generally, but not necessarily, with an agent such as ammonia or an organic acid, for preventing or retarding precipitation ; and (C) with a solution of one or more soluble salts derived from metals, the oxides or hydroxides of which are capable of acting as acids, such as the aluminates, stannates, arseniates, and antimoniates, as well as the tungstates described in the above-mentioned Specifications. Several examples are given. (1) The goods may be treated with sodium aluminate, dried, and then with a mixture of sodium tungstate, zinc acetate, and acetic acid. (2) The first bath in (1) may be replaced by one containing equal parts of sodium aluminate and stannate. (3) The goods are treated with sodium stannate, dried, and then treated with a mixture of sodium tungstate, zinc acetate solution, and acetic acid. (4) The goods are treated with a mixture of sodium arseniate, and sodium tungstate, and, after drying, with zinc or aluminium acetate, or nickel sulphate. (5) The goods are treated with sodium arseniate, dried, and then treated with zinc acetate or zinc sulphate. (6) The goods are treated with potassium antimoniate, dried, and then treated with a mixture of sodium tungstate, zinc acetate, and acetic acid. (7) The goods are treated with sodium stannate, dried, and then treated with a mixture of sodium tungstate, zinc acetate, and ammonia. Other examples of salts in Class A are titanium chloride, potassium titanium oxalate, and stannic chloride and tartar emetic. (8) The goods are treated with sodium stannate, dried, and then treated with a warm bath of potassium titanium oxalate. (9) The goods are treated with titanium chloride, partially dried, and then treated with sodium arseniate, or stannate, or tartar emetic ; they are then washed and dried. Before washing, they may be passed through a bath of caustic soda of 1À4‹ BÚ. (10) The titanium chloride solution in example (9) may be replaced by one of stannic chloride. (11) The goods are treated with sodium aluminate, dried, and then treated with a warm mixture of sodium tungstate, zinc acetate, tartar emetic, and acetic acid. (12) The goods are treated with sodium stannate, dried, and then treated with a mixture of zinc acetate, tartar emetic, and acetic acid. (13) The goods are treated in a mixture of sodium stannate and tungstate, dried, and then treated with a mixture of tartar emetic and zinc acetate. (14) The goods are soaked in a bath containing tartar emetic and sodium tungstate, dried, and then soaked in zinc acetate solution. (15) The goods are treated in a bath containing tartar emetic, acetic acid, zinc acetate, and sodium tungstate, dried, and steamed. If the goods contain sizing, they may be washed before being treated. Or the goods may be passed first through a weak solution of oleine, soap, soluble oil, or glycerine ; or, when two baths are used, the soap or like material may be added to the first bath.