What Are The Factors That Affect The Yarn Strength

What are the factors that affect the yarn strength

1. Raw material properties, such as length, fineness, breaking length, maturity, short fiber content, etc. The fiber length is long, the uniformity is good, and the fiber fineness is good. The higher the number of fibers per unit cross-section, the higher the twisting efficiency and the stronger the yarn. The higher the strength, the smaller the unevenness; the greater the unevenness, the lower the yarn strength.

2. The effect of spinning process on fiber properties. Influence of spinning process on yarn strength. The cleaning and carding process should reasonably choose the opening and impurity removal process parameters. Under the premise of fully open carding, avoid excessive damage to the fibers. It can eliminate short piles and impurities; and reasonably configure the drafting process and drafting form to ensure the control of the fiber during the drafting process, improve the straightness and parallelism of the fiber, appropriately increase the temperature and humidity of the roving, and improve the moisture regain of the roving. Fiber Stress is easy to disappear, straightening is guaranteed, and the shortening of the drafting distance can stabilize the fiber movement and make a roving with a uniform and uniform structure. At the same time, control the difference in the ratio of cooked sliver, reduce the difference in winding elongation, strengthen equipment maintenance and basic management, and reduce the generation of weak rings. Reduce the difference rate of raw material properties, enhance the uniform mixing of raw materials through pre-spinning, increase the carding effect, increase the mixing between single fibers, and increase the number of combing and drafting processes. , each raw material component is evenly distributed in the yarn, so that the yarn can reasonably and fully utilize the strength of each fiber during the stretching process of the yarn. Reduce winding elongation ingot difference, strengthen equipment maintenance and basic management, and reduce the generation of weak rings. Reduce the difference rate of raw material properties, enhance the uniform mixing of raw materials through pre-spinning, increase the carding effect, increase the mixing between single fibers, and increase the number of combing and drafting processes. , each raw material component is evenly distributed in the yarn, so that the yarn can reasonably and fully utilize the strength of each fiber during the stretching process of the yarn. Reduce winding elongation ingot difference, strengthen equipment maintenance and basic management, and reduce the generation of weak rings. Reduce the difference rate of raw material properties, enhance the uniform mixing of raw materials through pre-spinning, increase the carding effect, increase the mixing between single fibers, and increase the number of combing and drafting processes. , each raw material component is evenly distributed in the yarn, so that the yarn can reasonably and fully utilize the strength of each fiber during the stretching process of the yarn.

3. The structure of the yarn, such as the straightness and parallelism of the fiber, the arrangement and distribution of the yarn, the twist of the yarn, etc. The tension, width, tightness, fiber arrangement and straightening of the strands before twisting. Line strength has a certain impact. Compact spinning is a good way to improve the structure of the beard before twisting, reduce yarn hairiness and increase yarn strength.

4. Yarn evenness, such as uneven weight, unevenness and uneven twist, affects the evenness of spun yarn, mainly in the process and friction boundary of the front area, the specifications of the front drafting area, Ganoderma lucidum broken spore powder, Ganoderma lucidum spore powder, Ganoderma lucidum Price, gastrodia price, the length of the floating area of Dendrobium huoshan, the size of the apron claw, etc., the uneven weight of the yarn is controlled within 2% of 100 meters, the unevenness of the lap is within 1%, and the combed short staple rate is within 8% within, it will increase the unevenness of yarn weight.