The mechanism of yarn tensile breakage Strength and elasticity are two important properties of spinning yarn. The mechanical properties of spinning ya…

Yarn hairiness Spinning yarn hairiness refers to the fiber ends or loops that protrude from the main body of the spinning yarn. The condition of hairi…

The main factors affecting the internal and external transfer of fibers in yarn 1. Fiber Length Long fibers tend to migrate inwards. Because long fibe…

Yarn internal and external transfer and radial distribution 1. Internal and external transfer: When the sliver is spit out from the front roller holdi…

Test of yarn twist There are two methods for testing the twist of spinning yarn, namely the direct de-twisting method and the tension method. The tens…

Yarn twist index and its calculation-twist direction The twist direction refers to the twisting direction of the spinning yarn. It is described based …

Yarn twist index and its calculation-twist width and twist coefficient If the cross-section of the spinning yarn is regarded as a circle, the angles b…

Yarn twist index and its calculation-twist degree and twist angle If one end of the fiber sliver is controlled and held, and the other end rotates aro…

Effect on yarn elongation at break For single yarns, twisting reduces the possibility of fiber slippage in the spinning yarn and increases fiber elong…

Effect on yarn strength For short fiber yarns, the direct function of twisting is to obtain strength, but it does not mean that the greater the degree…

Effect of twisting degree on yarn diameter and density The degree of twisting of the spinning yarn not only affects the appearance quality such as dia…