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Suggestions for solving yellow and white yarn in dyed yarn

Author:Huaxia TechnologyHits:Published time:2021-03-29

Today, we will talk about the dyeing machine dyeing appeared crosshead, yellow white yarn solution suggestions!

Raw material reason:

About 70% of the yarn defects are caused by raw materials. For raw materials, the following points should be controlled:

1.1 to maintain an appropriate amount of raw material inventory, to be able to successfully complete the batch transition of raw materials, is the basis to solve the problem of color difference. It is necessary to stock long staple cotton varieties for more than two months and fine staple cotton varieties for more than 40 days. When the raw cotton warehouse exists for less than a month, and the source of goods is unstable, it is easy to appear the problem of color difference.

1.2 carry out cotton blending process strictly according to cotton blending principle, highlight the concept of main body of cotton blending, and keep the stability of color and internal quality index during batch to batch transition.

1.3 adhere to do a good job of cotton package by package inspection. The normal use of cotton package by package inspection work, found that individual color difference, foreign fiber content and other quality problems of cotton package, should be used reasonably.

1.4 strictly implement the cotton blending process, arrange the cotton bales according to the bale arrangement diagram, strive for uniform fiber mixing, and focus on the fiber mixing effect in the blowing and carding process.

1.5 the heterosexual fiber in the raw material will also cause the color difference of the cloth surface, which should be well controlled.

Operation management:

The principle of "spinning the semi-finished yarn first" should be carried out;

2.2. Pay attention to the production state of spinning yarn. When the phenomenon of ash yarn occurs, the air conditioner shall stop using the external air or doffing as soon as possible;

2.3. Control the generation of greasy yarn.

Equipment management:

Reduce the twist difference between spindles. Yarn twist is too large, will also cause color difference.

3.1. The specifications of spinning spindle should be consistent;

3.2. The specification and tension of spinning spindle belt are consistent;

3.3. The spindle pulley operates flexibly.

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