实验证明此工艺可以明显改善粗腔毛、死毛与正常羊毛的染色同色性，取得较好的染色效果。
We find that the tone-on-tone effects of the medullated and dead wool to the normal wool is good.
文章介绍了粗腔毛、死毛的成因及影响其染色性能的机理。
The article introduces the factors of the medullated and dead wool and the effects for dyeing gets.
结果：动物表皮有一层角化过度的角质层，毛干消失，毛球结构不正常，毛囊内为一些角化物质，有的变为空囊腔。
Results: There is a excessively keratinized layer in the animal epidermis, loss of hair shaft, abnormal structure of hair bulbs.
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