LAUNDRY WASH COMPOSITIONS

摘要

A laundry washing composition comprises: (a) anionic surfactant comprising at least one surfactant compound of formula (I) R<1>-2<->M<+> wherein R<1> is a branched alkyl or branched alkenyl group; Z<-> is a hydrophobic anion; and M<+> is a counter cation, preferably an alkali metal ion such as sodium; (b) a detergency enhancing polymer which is a homopolymer or copolymer containing one or more monomer units independently selected from those of formula (II) wherein -A- is selected from groups of formula -R<5>-, -R<5>-(CO)-R<6>-, -R<5>-(CO)-O-R<6>, -R<5>-O-(CO)-R<6>-, -R<5>-(CO)-NH-R<6>-, -R<5>-NH-(CO)-R<6>-, wherein R<5> and R<6> are independently absent, or represent C1-3 alkyl groups; R<1>, R<2> and R<3> are independently selected from hydrogen, C1-3 alkyl, C1-3 alkenyl, hydroxy-C1-3 alkyl and C5-8 cycloalkyl groups; and R<4> is selected from groups as defined for A above; wherein R<3> may also represent a bridge, group with the group R<4>, said bridging group being selected from groups as defined for A above; and X<-> is a monovalent anion or an n'th part of an n-valent anion; and (c) optionally, one or more other ingredients; wherein, when the composition comprises sodium tripolyphosphate builder, the composition is particulate and has a bulk density of at least 650 g/litre and when the composition comprises zeolite builder, the amount of zeolite builder is no more than 19% by weight of the composition.