Crystalline and Amorphous Structure of Fiber January 21, 2017 Md Sohanur Rahman Sobuj 011.56K Textile Physics-1 Amorphous region of the fiber is defined as the region of the fiber where there is no longer the order of chain molecules. The polymer chains are randomly placed in amorphous region. As a result, there is more air space in the amorphous fiber. Read more Colour Fastness of Textiles | Color Fastness To Washing