直接染料在碎浆与配浆的不同添加点染色效果的对比

A comparison on dyeing effect of direct dyes at different addition points in pulping and mixing

对直接染料在碎浆时添加、配浆时添加,和碎浆添加染色时间的长短分别进行抄片实验,通过感官和色相检测对比发现,直接染料在配浆时直接添加与在碎浆添加时有同等染色效果。

The addition of direct dyes in pulping and pulp mixing,as well as the length of dyeing time were studied through sheet sample test.The comparison of sensory and chroma values showed that direct dyes in pulping had the same dyeing effect as those in pulp mixing.