2024 年 7 月

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 diameter and finish of the spinni…

Yarn evenness test method There are many ways to test the unevenness of spinning yarn. Here are only two commonly used simple methods. 1. Cut-off weighing method: Use a yarn length…

The main reasons for yarn evenness and uneven evenness 1. The evenness of the spinning yarn (line density, linear density uniformity) refers to the degree of change in thickness al…

Line density deviation Due to process, equipment, operation and other reasons, there will be a certain deviation between the linear density of the actually produced spinning yarn a…

Yarn fineness index The fineness index of spinning yarn is the same as that of fiber and can be divided into two categories: direct index and indirect index. Direct indicators refe…

Examples of yarn process The process flow of some commonly used spinning yarns when spun with new domestic machines is shown in Table 3-3, and the process flow of finishing is show…

According to the structure and shape of yarn Spinning yarn is composed of fabric fibers and is a continuous strip with certain mechanical properties, fineness and softness. The so-…

A hybrid of wool and silk fibers (1) Impurity content of wool Wool is a natural fiber with a lot of impurities, which is mainly related to the growth environment and feeding condit…

Impurity content and defect rate of raw cotton (1) Impurity content of raw cotton: The standard impurity content of cotton, top roller cotton is 3.0%. Sawtooth cotton is 2.5%. The …