PROBLEM TO BE SOLVED: To provide a hair-dyeing agent composition with improved coloration persistence, capable of excluding uneven color intake and uneven colorization caused by weak interaction between a dye and hair fibers.SOLUTION: The hair-dyeing agent composition kit of the present invention comprises (a) at least one dye which is a compound having a NH2 and/or COOH moiety and (b) a condensation agent capable of forming an amide bond between the dye and keratin fibers.COPYRIGHT: (C)2015,JPO&INPIT【課題】着色持続性を改善し、そして染料と毛髪繊維との間の弱い相互作用によって生ずるむらのある色の取り込み及びむらのあるカラー化を除きうる染毛剤組成物を提供する。【解決手段】本発明の染毛剤組成物キットは、(a)NH2及び/又はCOOH部分を有する化合物である少なくとも1つの染料及び(b)その染料とケラチン繊維との間にアミド結合を形成しうる縮合剤を含む。【選択図】なし
