The mechanism of yarn stretch breakage
The mechanism of yarn tensile breakage Strength and elasticity are two important properties of spinning yarn. The mechanical properties of spinning yarn refer to the mechanical pro…
yarn hairiness
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 hairiness is complex and ever-chang…
Main factors affecting the internal and external transfer of fibers in yarn
The main factors affecting the internal and external transfer of fibers in yarn 1. Fiber Length Long fibers tend to migrate inwards. Because long fibers are easily held by both end…
Yarn internal and external transfer and radial distribution
Yarn internal and external transfer and radial distribution 1. Internal and external transfer: When the sliver is spit out from the front roller holding position of the spinning fr…
Yarn twist test
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 tension method is also called the …
Yarn twist index and its calculation – twist direction
Yarn twist index and its calculation-twist direction The twist direction refers to the twisting direction of the spinning yarn. It is described based on the inclination of the fibe…
Yarn twist index and its calculation-twist width and twist coefficient
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 between the fibers at different…
Yarn twist index and its calculation-twist degree and twist angle
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 around its own axis, a spinning y…
Effect on yarn elongation at break
Effect on yarn elongation at break For single yarns, twisting reduces the possibility of fiber slippage in the spinning yarn and increases fiber elongation and deformation, which i…
Effect on yarn strength
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 of twisting, the greater the …