Color protection detergent
AssigneeHenkel AG & Co. KGaA
InventorsMareile Job, Birgit Gluesen, John Taylor, Anthony Lawrence
Life of this patent
Estimating the term…
Abstract
The present invention improves dye transfer inhibition in the washing of textiles by the use of SO3M substituted urea derivatives of aromatic amines.
Claims10
A detergent containing a dye transfer inhibitor in the form of a urea derivative of the general formula I,
- (SO3M)aA(NH—CO—NH—B(SO3M)b)c (I)
- in which
- M denotes H or an alkali metal,
- A and B irrespective of each other denote an aromatic moiety, optionally substituted with up to 3 alkyl substituents with 1 to 4 carbon atoms,
- a and b irrespective of each other denote 0, 1, 2 or 3, and a+b≧1, and
- c denotes 1, 2 or 3,
- and a surfactant selected from the group consisting of anionic surfactants, nonionic surfactants, cationic surfactants, zwitterionic surfactants, amphoteric surfactants, and mixtures thereof.
A method for avoiding the transfer of textile dyes from dyed textiles onto undyed or differently colored textiles when they are jointly washed in aqueous solutions, comprising:
- washing different colored textiles in the presence of urea derivatives of the general formula I,
- (SO3M)aA(NH—CO—NH—B(SO3M)b)c (I)
- in which
- M denotes H or an alkali metal,
- A and B irrespective of each other denote an aromatic moiety, e optionally substituted with up to 3 alkyl substituents with 1 to 4 carbon atoms,
- a and b irrespective of each other denote 0, 1, 2 or 3, and a+b≧1, and
- c denotes 1, 2 or 3 and a surfactant selected from the group consisting of anionic surfactants, nonionic surfactants, cationic surfactants, zwitterionic surfactants, amphoteric surfactants, and mixtures thereof.
A method for reducing or avoiding modification of the color appearance of dyed textiles during washing in aqueous solutions, comprising washing the dyed textiles in the presence of urea derivatives of the general formula I,
- (SO3M)aA(NH—CO—NH—B(SO3M)b)c (I)
- in which
- M denotes H or an alkali metal,
- A and B irrespective of each other denote an aromatic moiety, optionally substituted with up to 3 alkyl substituents with 1 to 4 carbon atoms,
- a and b irrespective of each other denote 0, 1, 2 or 3, and a+b≧1, and
- c denotes 1, 2 or 3 and a surfactant selected from the group consisting of anionic surfactants, nonionic surfactants, cationic surfactants, zwitterionic surfactants, amphoteric surfactants, and mixtures thereof.
Dependencies are inferred from the claim text.