How to judge whether the appearance of the yarn meets the requirements?

Judging whether the appearance of the yarn meets the requirements usually needs to consider the following aspects:

 

1. Color: The color of the yarn should conform to the product specifications and customer requirements, and the color should be uniform and bright without color difference or spots.

 

2. Gloss: The gloss of the yarn should meet the product specifications and customer requirements. Too low or too high gloss will affect the appearance of the yarn.

3. Texture: The texture of the yarn should conform to the product specifications and customer requirements, and there should be no problems such as broken yarn, yarn lapping, and random yarn. The texture of the yarn should be clear and neat.

 

4. Miscellaneous yarn: There should not be too many impurities and yarn ends in the yarn, such as hair, paper dust, cottonseed, cut yarn, etc., otherwise it will affect the quality and appearance of the fabric.

 

5. Yarn knot: The knot of the yarn should be firm, and there should be no looseness, looseness, cracking, etc., otherwise it will affect the strength of the yarn and the quality of the fabric.

 

To sum up, it is necessary to consider the above factors comprehensively to judge whether the appearance of the yarn meets the requirements. The appearance of the yarn is considered to be satisfactory if the yarn complies with the product specification and customer requirements in terms of color, luster, texture, stray yarns and knots.