Revistes Catalanes amb Accés Obert (RACO)

Acción del Laurilsulfato Sódico en el blanqueo de la Lana con Peróxido de Hidrógeno en medio ácido.

José Cegarra Sánchez, Joaquín Gacén Guillén, Montserrat Caro

Resum


The influence of a treatment with sodium Oaurylsulphate, at different pHs, on the parameter of wools bleached susequently with hydrogen peroxide in an acidic medium has been studied, usign Prestogen W as a stabilizer. The pretreatment at different pH renders whiter wools with less content of cysteix acid and more alkali solubility than untreated wool bleached in the same conditions. Wool bleaching, in a solution of hydrogen peroxide in an acidic medium in presence of Prestogen W, to which sodiul laurylsulphate was added, gives rise to similar variations, although more marked than those derived from the application of a pretreatment with sodium laurylsulphate and a subsequent bleaching.

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