What is strong twisted yarn? What are the advantages of strongly twisted yarn?
In order to make the yarn have a certain strength, elasticity, elongation, luster, Yarns with physical and mechanical properties such as hand feel must change the cotton yarn through twisting. Yarn twisting is achieved by fiber structure. In fact, the relative angular displacement between cotton yarn cross sections is used to tilt the originally straight and parallel fibers and the yarn axis. To change the yarn structure, the thick sliver gradually shrinks in width during the twisting process, and the two sides are gradually folded and rolled into the center of the yarn line, forming a twisted triangle. In the twisted triangle, the width and cross-section of the sliver change. From flat ribbon to cylindrical yarn.
(1) The definition of twist: the yarn rotates 360 degrees around its axis A degree is a twist.
(2) Definition of twist: the specified length of yarn before untwisting The number of twists within is usually expressed as twists per inch (T.P.I) or twists per meter (T.P.M).
(3) Definition of twist coefficient: It is a measure of the degree of twisting of the yarn. in twists per unit length. T. M: Calculated by multiplying the number by the square root of the yarn density. T.M = T.P.I / square root of yarn count T.P.I = T.M x square root of yarn count
(4) Twist direction definition: When the yarn is in a vertical position, the tilt direction of the spiral formed by the rotation of the units making up the yarn around the axis of the yarn.
(5)S twist definition: the tilt direction of the fiber in the yarn and the letter The middle part of S is consistent. It is a right-hand or clockwise twisted yarn.
Strongly twisted yarn is mainly used in woven weft yarns, which can make the cloth surface produce Wrinkled unique style.
Due to the above unique functions, strong twisted yarn as a special yarn has always occupied a place in the yarn market. Strongly twisted yarn can be produced without improving equipment or adding accessories, and the product has high technical content and added value. However, the production of strongly twisted yarn is difficult and the product quality is difficult to control. Production companies must have certain technical capabilities and management experience.
Strongly twisted yarn is a very common fabric, which is used in daily life Made into a variety of clothing and for other uses. However, not many people know the characteristics of this fabric. In order to help people understand it better, here is a brief introduction to this issue. I hope it can be helpful to those in need.
Strongly twisted yarn has good dimensional stability and small washing shrinkage. Simply put, clothing or other textiles made of this fabric do not need to worry about shrinkage after cleaning.
Advantages of strongly twisted yarn
Strongly twisted yarn has good luster, is very beautiful, and feels very smooth and comfortable. It’s great for making underwear and won’t harm your skin.
In addition, the strongly twisted yarn has a unique silk-like feel, elegant and vertical Good sex. In addition to this feature, Tencel bamboo cotton fabric also has good air permeability and moisture resistance. When textiles made from it are worn in summer, people do not need to worry about its breathability and moisture resistance.
Strongly twisted yarn fully meets the requirements of modern people in terms of comprehensive performance, and it It contains a large amount of cotton and uses plant fiber, so it does not cause any harm to the human body. It has strong plasticity, so it can make a variety of clothes. It is also very comfortable to wear, has a soft hand feel, and a very strong drape. It has no smell after burning, so it is a healthy and green textile. .
The commonly used twist coefficient is that woven warp yarns are higher, while knitting warp yarns are generally lower. About 3.5-3.6. Due to different uses of yarn, there are different twist coefficient yarn products. According to Japanese textile calculation data, they are divided into: ordinary twist = 4.0 (twist coefficient), loose twist = 3.4 (twist coefficient), special loose twist = 1.32- 2.8 (twist coefficient), strong twist=5.0-5.4 (twist coefficient), special strong twist=5.0-6.5 (twist coefficient). High-twist yarn generally needs to be steamed before it can be woven, and sometimes it is necessary to install a twist remover before it can be woven.
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