Causes and solutions of cotton nodule in cotton yarn

In the process of cotton spinning, people are most worried about the occurrence of cotton knots, which will greatly directly affect the quality of the woven fabric. Therefore, the problem of cotton knots is a common concern in the process of spinning. However, in order to prevent the occurrence of cotton knots, we must understand the possible causes of cotton knots, so as to do a good job in prevention. Viscose yarn Xiaobian to give you a brief say.

Causes of cotton knots:

1. Raw materials.

If there are impurities or defects in the raw material, this can cause knots, such as knots formed by fibers attached to the cottonseed skin. The number of cotton knots is an index to evaluate the grade of raw cotton. Low grade raw cotton has high content of impurities and defects, fine fiber and poor maturity, and more cotton knots are formed in the production process. Therefore, the amount of knots and impurities spun by different raw materials is not comparable, and can not be used as an indicator to measure the performance of the spinning machine.

2, caused in the processing process.

It includes the cotton knots formed during rough processing of raw cotton ginning and spinning production, mainly generated by sawtooth gin, the cotton knots formed during spinning, including the cotton knots formed when the fibers are loosened, the friction resistance of fiber channels and the cotton knots formed by sticking, entangling, blocking and hanging, and the cotton knots generated during the drafting process of bent hook fibers.

There are mainly two reasons for the occurrence of cotton knots. In order to avoid the occurrence of such cotton knots, we naturally need to start from these two aspects. We need to select high-quality raw materials, carefully screen and treat the raw materials.