A dye composition based on a copolymer obtained by polymerization of at least one catonic acid monomer or crotonic acid derivative and at least one incremental polymer having a (meth) acrylic acid unit and method for dyeing keratin fiber using it
The invention comprises one or more copolymers, or one or more kinds of (II) acrylic acid units obtained by polymerization of at least (I) at least one crotonate or crotonic acid derivative with at least two different vinyl ester monomers The present invention relates to a composition for dyeing keratin fibers, including viscous polymers and (III) one or more kinds of pigments.The present invention also relates to a dyeing method in which the composition is applied to a keratin fiber and optionally dried after this operation.By this composition, it is possible to form temporary deposits which are difficult to shift in color, and it is possible to perform a temporary stain having an advantage that one of the treated fibers is easy to form and the aesthetic feel is improved.本発明は、少なくとも（ｉ）少なくとも１種のクロトン酸モノマー又はクロトン酸誘導体と少なくとも２種の異なるビニルエステルモノマーとの重合により得られる１種又は複数種のコポリマー、（ｉｉ）（メタ）アクリル酸単位を有する１種又は複数種の増粘性ポリマー、及び（ｉｉｉ）１種又は複数種の顔料、を含む、ケラチン繊維を染色するための組成物に関する。本発明はまた、前記組成物をケラチン繊維に適用し、この操作の後に任意選択で乾燥を行う、染色方法にも関する。この組成物により、色移りし難い堆積物を形成し、処理された繊維は１本１本がばらけ易く、美的感触が向上しているという利点を有する、一時染色を行うことが可能になる。
