2.2dtex × 5 1mm for high shrinkage acrylic fiber, 0/.7 dtex × 51mm for ordinary acrylic fiber; 66 or more wool, the shearing length of wool is 5 1mm, rabbit hair is over 38mm, and viscose1.7 dtex× 51mm.

Among all kinds of bulked yarns, the blending ratio of high shrinkage acrylic fiber is generally between 35% and 45%, and the blending ratio of wool or rabbit hair and wool is generally within 20%. The selection of the above specifications and blending ratio is mainly based on the processing capacity of cotton spinning equipment and the requirements of the final product.