The Preparation of CarboxymethylCellulose from Recycled Fiber(I) -The Reactivity in Carboxymethylation of Recycled Fiber-

재생(再生)펄프를 이용(利用)한 카르복시메틸세룰로오스의 제조(製造)(I) -재생(再生)펄프의 Carboxymethylation반응성(反應性)을 중심(中心)으로-

The purpose of this study is to investigate the preparation of the carboxymethylcellulose from recycled fiber, especially on the reactivity of carboxymethylation. Using a deinked pulp and a dissolving pulp. Green's method is adapted to the carboxymethylation. We conformed that the carboxymethyl group is led for recycled fiber by FT-IR analysis. The recycled fiber is more reactive than the dissolving pulp because the recycled fiber had been defiberated and pretreated with alkali. It suggests that deinking process is in accordance with pretreatment of CMC process. Therefore, it may be possible to prepare CMC from the recylced fiber economically.