Detergent compositions which provide dye transfer inhibition...

Details Detergent compositions which provide dye transfer inhibition... Detergent compositions which provide dye transfer inhibition...

C - Chemistry, Metallurgy

11

D

C11D 3/42 (2006.01) C11D 1/86 (2006.01) C11D 3/00 (2006.01) C11D 3/37 (2006.01) C11D 17/06 (2006.01) C11D 1/14 (2006.01) C11D 1/22 (2006.01) C11D 1/29 (2006.01) C11D 1/52 (2006.01) C11D 1/72 (2006.01)

Patent

CA 2174722

Disclosed are detergent compositions and methods which are suitable for washing colored fabrics in aqueous washing solution with little or no transfer of dye between fabrics. The compositions utilized comprise detersive surfactant, detergent builder, certain selected polymeric dye transfer inhibiting agents and certain selected hydrophilic optical brighteners. The polymeric dye transfer inhibiting agents are polyamine N-oxides such as poly(4-vinylpyridine-N-oxide), i.e., PVNO and/or copolymers of N-vinylpyrrolidone and N-vinylimidazole, i.e., PVPVI. The optical brighteners are selected from certain stilbenedisulfonic acid salts.

Procédés de lavage et compositions détersives se prêtant au lavage de tissus colorés dans une solution de lavage aqueuse, de façon qu'il n'y ait pas, ou presque pas, de transfert de colorants entre les tissus. Ces compositions comprennent un tensioactif détersif, un additif de détergent, certains agents d'inhibition de colorants polymères, ainsi que certains agents d'avivage de couleur optiques hydrophiles choisis. Les agents d'inhibition de transfert de colorants se composent de N-oxydes de polyamine tels que poly(4-vinylpyridine-N-oxyde), en d'autres termes PVNO, et/ou de copolymères de N-vinylpyrrolidone et de N-vinylimidazole, en d'autres termes PVPVI. Les agents d'avivage optiques sont choisis à partir de certains sels d'acide stilbenedisulfonique.

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