Revistes Catalanes amb Accés Obert (RACO)

Estudio comparativo de blanqueo de la lana con agentes reductores

Joaquín Gacén Guillén, Diana Cayuela Marín, Mª Teresa Rodríguez Charles

Resum


Two types of wool of different shades of white were bleached with sodium bisulphite, sodium hydrosulphite, thiourea dioxide, sodium hydrosulphite stabilized as ditionite (Blankit IN) and sodium hydrosulphite stabilized as sulphoxilate formaldehyde (Blankit D). Bleaching was done with and without sodium lauryl sulphate surfactant. The bleached wool was tested for degree of whiteness, cysteine content, solubility in alkali, tenacity and, when applicable, surfactant retention.

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