How is acrylic fiber made into bulky yarn? By using the thermoplastic properties of waxen fiber, people first process it into a certain length of fiber with high shrinkage (shrinkage of 20-30%) or medium shrinkage (shrinkage of about 15%), and then blend it with ordinary waxen fiber (natural shrinkage of 3-6%) in a certain proportion (ordinary waxen fiber accounts for 55-60%) to form a yarn. After 100 ℃ steam treatment, the high (medium) shrinkage fiber shrinks along the axial direction of the yarn, forming the central core of the yarn, while the ordinary waxen fiber expands laterally, The diameter expands and thickens, showing a fluctuating state, and appears on the surface of the yarn, forming a long, fluffy, loose and soft yarn. This is waxen bulky yarn.
Bulk acrylic yarn, a soft and fluffy yarn, is mostly ply yarn. 828 represents 28 shares and 824 represents 24 shares. The fundamental difference between the two is the number of shares. The bulky acrylic yarn has a unique style of soft and bulky feel and is similar to wool yarn. It is widely used in knitting wool, underwear, outerwear knitted sweaters, towels, napkins and decorative fabrics. The bulky acrylic yarn is very soft, with excellent elasticity and thermal insulation, and is suitable for knitting into sweaters. The weight of a bulky wool sweater is only 80% of that of a pure wool sweater of the same size and thickness. Its thermal insulation is much better than wool wool. It is suitable for knitting gloves, scarves, hats and other knitwear, and can also be used to weave tight-fitting sportswear.
The performance of acrylic yarn fiber is very similar to wool, so it is called "synthetic wool". Molecular structure: Acrylic fiber is unique in its internal macromolecular structure, with irregular helical conformation and no strict crystal region, but it can be divided into high-order arrangement and low-order arrangement. Because of this structure, acrylic fiber has good thermal elasticity (can process bulky yarn), low density of acrylic fiber, smaller than wool, and good thermal insulation of fabric. Features: good sunlight resistance and weather resistance (ranking first), poor moisture absorption and difficult dyeing. Pure fiber, due to its tight internal structure and poor wearability, is added with the third monomer, its performance, monomer: elasticity and feel, and the third monomer dyeing. Usage: Mainly used for civil use, can be pure or blended, and made into a variety of wool, wool, blankets, sportswear, also can be: artificial fur, plush, bulky yarn, hose, parasol cloth, etc.
