Patent GB-391433-A (GB)
Title: Improvements relating to the treatment of textile materials
IPC: C11D1/12
Filed: 1931-07-24
Abstract: Compounds having the formula R-X-R1-SO3Me, in which X stands for CH2O, COO, CONH or CONR2 (R2 being a hydrocarbon residue), R an aliphatic hydrocarbon having at least eleven carbon atoms, R1 any substituted or unsubstituted hydrocarbon residue and Me stands for ammonium or an alkali metal, are used instead of or in addition to soaps in the treatment of textiles.  Soaps of di- and polyvalent metals and free fatty acids are thereby dispersed or prevented from being precipitated.  In examples: (1) precipitates of insoluble soaps obtained by adding p  soap solution to hard water are dispersed by the addition of the sodium salt of the ester of oleic acid and hydroxyethanesulphonic acid or of lauryldihydroxypropylnaphthalenesulphonic acid; (2) a dispersion is obtained by adding soap to a solution of the sodium salt of the ether from dodecylalcohol and hydroxyethanesulphonic acid; it may be used for washing; (3) fatty acids precipitated by acetic acid from soap solution are dispersed by means of oleic acid phenyltaurin (4) sodium oleic acid hydroxyethanesulphonate is added to a liquor used for washing loose wool; (5) oleicacidmethyltaurin is similarly used instead of soap for washing woollen piece-goods; soaps derived from the olein emulsions used in spinning, and iron, copper, manganese and chromium salts are not precipitated; (6) the sodium salt of the lauric acid ester of phenolsulphonic acid is used for soaping material dyed with Indanthrene (a Registered Trade Mark); (7) dyed cotton piece-goods are treated with a bath containing sodium oleicacidethylanilide sulphonate to render them fast to rubbing; (8) Skinner's wool containing lime is washed with a neutral solution of sodium oleic acid hydroxyethanesulphonate, hydrochloric acid being added to dissolve the lime; (9) any of the dispersing agents mentioned above are used in magnesium sulphate and other finishes containing salts for loading or weighting, in washing baths made from sea water, and in baths for degumming silk.  The ester obtained from stearic acid and phenolsulphonic acid is also mentioned as a dispersing agent.ALSO:Compounds having the formula R-X-R1-SO3Me, in which X stands for CH2O, COO, CONH or CONR2 (R2 being a hydrocarbon residue), R an aliphatic hydrocarbon having at least eleven carbon atoms, R1 any substituted or unsubstituted hydrocarbon residue and Me stands for ammonium or an alkali metal, are used instead of or in addition to soaps in the treatment of textiles, whereby soaps of di- and polyvalent metals and free fatty acids are dispersed or prevented from being precipitated. In examples (1) precipitates of insoluble soaps obtained by adding soap solution to hard water are dispersed by the addition of the sodium salt of the ester of oleic acid and hydroxyethanesulphonic acid or of lauryldihydroxypropylnaphthalenesulphonic acid; (2) a dispersion is obtained by adding soap to a solution of the sodium salt of the ether from dodecylalcohol and hydroxyethanesulphonic acid; (3) fatty acids precipitated by acetic acid from soap solution are dispersed by means of oleic acid phenyltaurin; (4) oleicacidmethyltaurin is used for washing woollen piece-goods; soaps derived from the olein emulsions used in spinning, and iron, copper, manganese, and chromium salts are not precipitated:  (6) the ester obtained from stearic acid and phenolsulphonic acid is mentioned as a dispersing agent.