| 摘要 |
<p>1,204,123. Particulate detergent compositions. UNILEVER Ltd. 27 Nov., 1967 [29 Nov., 1966; 9 Nov., 1967], Nos. 53496/66 and 51034/67. Heading C5D. A particulate detergent composition consisting of a surfactant-containing detergent powder (A) and granules of an organic extrudable solid (B) containing an adjunct (C) which improves the brightening activity, detergency, germicidal activity, anti-tarnishing activity or odour of the composition and the effectiveness of which is impaired when incorporated into the surfactantcontaining detergent powder directly, is produced by (a) mixing the adjunct and the organic extrudable solid to form a mixture throughout which the adjunct is dispersed; (b) forming granules from the mixture; and (c) adding the granules to the surfactant containing powder. The extrudable solid (B) may be a polyglycol, a polyalkylene oxide, a C 12 -C 20 alpha olefin sulphonate, sodium N-coconut acid N-methyl taurate, condensates between polyethylene oxide and polypropylene oxide, condensates of alkylene oxides with alcohols, alkyl phenols, amides, amines and acids, sodium salt of a C 8 -C 22 fatty acid, urea, starch, gelatin and cellulose derivatives. The surfactant (A) may be anionic, non-ionic, cationic, amphoteric or a mixture thereof; a soap or a mixture of soap and non-ionic surfactant. Builder salts such as alkali metal phosphates, sulphates, silicates or sodium ethylene diamine tetraacetic acid may also be present. The adduct (C) may be (1) an enzyme which may be stabilized by the addition of a soluble calcium salt e.g. calcium gluconate, glycinate, acetate, butyrate or chloride; (2) a bleaching agent e.g. sodium perborate, mixtures of sodium perborate and activator e.g. sodium p-acetyl benzene sulphonate, hypochlorite or trichlorocyanuric acid; (3) perfumes; (4) germicides, e.g. 3,4,41-trichlorocarbanilide and many others; (5) fluorescers e.g. 1,3-diaryl #<SP>2</SP>-pyrazolines. Tablets or bars may be formed by compressing the aforesaid compositions.</p> |
