| 摘要 |
PROBLEM TO BE SOLVED: To provide an additive composition capable of reducing the extent of the reduction of cleaning capability even when using water having poor quality such as bath water, and to provide a water treatment agent stably exerting the effect to wide conditions in water quality. SOLUTION: The composition comprises a water-soluble graft polymer prepared by graft polymerization of a mono-ethylenically unsaturated monomer component including a mono-ethylenically unsaturated carboxylic acid-based monomer to a polyether compound, and a linear polycarboxylic acid-based polymer having an acid value of 2.0 mmol/g or more. |
