Silk linen blended wet textile composite fabric information

(1) Overview of the design of silk and linen blended wet textile fabrics 1. Characteristics of silk and linen blended (primary color) bleached yarn and fabrics (1) Fully mix two natural fibers with different properties in an appropriate proportion, that is, effectively combine the “softness” of silk fiber and the “stiffness” of linen fiber. It not only maintains the inherent characteristics of natural silk, but also improves the defects of pure linen fabrics such as hard feel, uneven cloth surface and stiffness of silk fabrics. (2) The flax raw materials used are high-quality combed long linen and short linen fibers, and the bleached yarn produced by the blended wet spinning process has the advantages of good evenness, few hemp particles, and high yarn uniformity. The elasticity and gloss of blended yarn are also significantly higher than that of pure linen yarn, and can be used to weave various dyed and printed fabrics. (3) According to the fiber transfer theory during the spinning process, flax fibers are thick and coated on the surface of silk fibers, while silk fibers are thin. Some of the fibers are transferred to the inside of the yarn during the spinning process, and some of the fibers are distributed with the flax fibers. On the outside of the yarn, the yarn density of silk and linen blended wet spinning yarn is low, and it can spin fine yarns below 20tex (more than 50 tex count). The woven fabric is fine but not waxy, thick but not rough, hygroscopic and breathable. It has good sex, comfortable to wear, does not stick to the body after absorbing sweat, and has antibacterial function. It is a pure natural green fabric. It is suitable for thin summer inner and outer clothing for men and women. It is also suitable for knitted products. It is an ideal summer clothing fabric. 2. Selection of raw materials (1) Selection of silk: Natural silk is mainly divided into two types: domestic silk and wild silk. Domestic silk is mulberry silk, while wild silk is divided into tussah frog, castor silk, camphor silk, etc. Since wild silk has stronger acid and alkali resistance than domestic silk, it is better to use wild silk for products blended with flax fiber. Domestic wild silk generally uses tussah silk. Tussah silk is made from silk-spun strips. The weight of the spun silk strip is 15-18g/m, the average single fiber length of the spun silk strip is not less than 90mm, the average single fiber strength is not less than 44cN/tex (5gf/denier), and the average single fiber linear density is greater than 2.2dtex. (2) Selection of flax fiber: In silk/linen fabrics, flax generally accounts for a larger proportion, especially in export blended products, where the flax fiber content generally accounts for more than 55%. Silk fiber is not resistant to alkali, and linen fiber is not resistant to acid. However, the scouring process in the flax wet spinning process requires acid and alkaline degumming of the flax fiber. Therefore, flax fiber must be imported high-strength, high-strength, low-pectin and woody fiber to reduce damage to silk during the bleaching process. Generally, the length of combed hemp fiber is 400-500mm, the strength is more than 19.6N (20kgf), and less than 22dtex (more than 450 metric thread). When combed into short flax, the strength is more than 29.4N (30kgf), the average fiber length is more than 10mm, and the splitting degree is less than 25dtex (more than 400 metric branches). Strong alkali has a great influence on the fiber loss rate. When the concentration and temperature increase, the silk is gradually dissolved, and as the concentration of weak alkali increases, the degree of bleaching of the yarn also increases. After the wet spinning of wet silk and flax is off the machine, it needs to be dried. The fatigue growth rate of silk and flax blended yarn increases with the increase of drying time and drying temperature.
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