The object is to provide a process for dyeing that can provide an excellent dyeing effect while utilizing an oxidase, and a dyeing agent for use in the process. Provided is a dyeing agent comprising a modified enzyme obtained by adding positive charge by a chemical modification with an amine to an enzyme selected from the group consisting of an enzyme specified as EC 1.10.3.1, an enzyme specified as EC 1.10.3.2, an enzyme specified as EC 1.3.3.5, an enzyme specified as EC 1.10.3.4, an enzyme specified as EC 1.10.3.3 and an enzyme specified as EC 1.14.18.1. A process for dyeing using the dyeing agent is also provided.
本发明的目的是提供一种在利用氧化酶的同时能够提供出色染色效果的染色工艺,以及一种用于该工艺的染色剂。本发明提供了一种染色剂,该染色剂包含一种改性酶,该改性酶是通过对选自
EC 1.10.3.1 酶、
EC 1.10.3.2 酶、
EC 1.3.3.5 酶、
EC 1.10.3.4 酶、
EC 1.10.3.3 酶和
EC 1.14.18.1 酶组的酶进行胺
化学改性而获得正电荷。还提供了一种使用染色剂进行染色的工艺。