Human hair is not a textile fiber

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Human hair is one kind of protein fiber but not any textile fiber. In spite of having sufficient strength, length, fineness and other many characteristics of a textile fiber it cannot be referred to as a textile fiber because of its outlines are more rounded and there is no free projecting edge. If we compare with wool fiber there is no essential difference between wool and most animals or human hairs. It will be observed that the scales are smaller and more numerous on hair. The medulla also is more marked than in wool. Human hairs are deeply pigmented, making them unsuitable for textile use.