| 摘要 |
Described is a method of bleaching textile fabrics with potassium based bleaching liquors: One liquor is an aqueous solution of commercially available potassium orthosilicate, water and hydrogen peroxide and the other is an aqueous solution of water, hydrogen peroxide, and the reaction products of sodium silicate and potassium hydroxide (potassium orthosilicate and sodium hydroxide) the relative concentrations of the reactants being such that there are four moles of potassium hydroxide for every one mole of sodium silicate. In the latter liquor, the potassium ion concentration is always greater than the sodium ion concentration.
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