How to choose raw cotton Raw cotton should be selected according to the linear density of the spinning yarn, the purpose of the yarn and the finishing characteristics. 1. Select ra…

Raw cotton selection principles Fabric quality is closely related to the quality of the yarns that make up the fabric, and the quality of the yarns depends on the properties of the…

Main factors affecting yarn tensile breaking strength 1. Fiber properties: (1) Fiber length: Fibers whose length is shorter than 2Lc (Lc is the slip length) will cause the yarn str…

Yarn strength index 1. The main strength indicators of spinning yarn mainly include breaking strength, breaking stress, breaking strength, breaking length, breaking elongation, wet…

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 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…

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 1. Internal and external transfer: When the sliver is spit out from the front roller holding position of the spinning fr…

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 …