Due to different production methods, acrylic yarn can be divided into many types. So first of all, let's take a look at the production method of acrylic yarn. The raw material of acrylic fiber is the cheap propylene by-product of petroleum cracking: since the polyacrylonitrile copolymer only decomposes and does not melt when heated to above 230C, it cannot be melt-spun like polyester and nylon fibers, but solution spinning is used. silk method. Spinning can be dry or wet. High dry spinning speed, suitable for spinning imitation silk fabrics. Shifen spinning is suitable for making short fibers, fluffy and soft, and suitable for making wool-like fabrics.
Polyacrylonitrile fiber has high requirements on the purity of raw material acrylonitrile, and the total content of various impurities should be less than 0.005%. The second monomer of polymerization is mainly methyl acrylate, and methyl methacrylate can also be used, the purpose is to improve the spinnability and the hand, softness and elasticity of the fiber; the third monomer is mainly to improve the dyeability of the fiber, generally Itaconic acid containing weak acid dyeing group, sodium propylene sulfonate, sodium methacrylic sulfonate, sodium p-methacrylamide benzene sulfonate containing strong acid dyeing group, -methyl sulfonate containing basic dyeing group Vinylpyridine etc. According to the type of acrylic fabric, it can be divided into acrylic white yarn, acrylic white yarn, acrylic viscose blended white yarn, acrylic viscose blended white yarn, etc. According to the thickness of the yarn, there are various yarn count specifications, mainly: 8S, 10S, 12S, 16S, 20S, 21S, 30S, 32S, etc.
There are many types of acrylic fabrics, including pure acrylic fabrics, and acrylic blended and interwoven fabrics. The main varieties are as follows:
1. The acrylic pure textile is made of 100% acrylic fiber. For example, the worsted acrylic women's woolen fabric made of 100% wool-type acrylic fiber has the characteristics of loose structure, bright color, soft and elastic feel, and the texture is neither loose nor rotten. It is suitable for making middle and low-grade women's clothing. And using 100% acrylic bulked yarn as raw material, plain or twill weave acrylic bulked coat can be made, which has the characteristics of full hand, warm and relaxed wool fabric, suitable for making spring, autumn and winter coats, casual clothes, etc.
2. Acrylic blended fabrics refer to fabrics blended with wool or mid-length acrylic and viscose or polyester. Including Nitrile/Viscose Gabardine, Nitrile/Viscose Ladies, Nitrile/Polyester Tweed, etc. Nitrile/viscose gabardine, also known as oriental wool, is blended with nitrile and viscose each accounting for 50%. It has a thick and tight body, strong and durable, and a smooth, soft, wool-like gabardine-like style, but the elasticity is poor. Crease-prone, suitable for making inexpensive pants.
Nitrile/viscose women's woolen is made of 85% acrylic and 15% viscose blended, mostly woven with crepe, the surface is slightly fluffed, the color is bright, the body is light and thin, the durability is good, and the resilience is poor, suitable for making coat. Nitrile/polyester tweed is blended with nitrile and polyester respectively accounting for 40% and 60%. Because it is mostly processed with plain weave and twill weave, it has the characteristics of flat appearance, firmness and no ironing. Its disadvantage is poor comfort, Therefore, it is mostly used for the production of mid-range clothing such as outerwear and suits.
