The influence of yarn on textile quality

Low-grade cotton

When low-quality cotton is mixed into the yarn to weave, dyeing defects will occur during printing and dyeing, especially when mixed into high-count yarn, which will reduce the grade of the product after being woven into high-end products. The cloth woven by this kind of yarn can be used for sanding and velvet products, and it can barely be covered up when dyed in a light color, but the product grade will not be very high. Dyeing in a dark color will affect the color and vividness. Even if it is made of corduroy products, it will also affect the fullness and natural luster of the fluff. Especially for cloths with different cotton grades, if they are not dyed in the same color, it will cause serious unevenness and mislead the technician to adjust the shade.

Dead cotton

Dead cotton is a kind of immature cotton. Even through pre-treatment, it still refuses to dye dyes and produces white spots on the cloth surface. Dyeing light colors can reduce or eliminate the effect. Once dyed in medium and dark colors, these white spots are generally not available to customers. accept. Corduroy products can be reduced through heavy brushing of the front and rear channels, and the serious ones cannot be eliminated, and the bottom plate is not improved; it can be basically solved by washing in an industrial washing machine, and velvet fabrics and plain cloths that do not need to be washed will seriously affect the appearance.

The influence of three silks on textiles

(1) Snake skin silk:

It is mainly mixed in the process of packaging cotton and blended cotton. It is best to pick it up before spinning. After weaving the cloth, it needs to be repaired and picked. It is very troublesome to leave it to the printing and dyeing factory. Use a contact singeing machine and high temperature. The baking method can further remove a part of the small snakeskin silk, which is often repaired after dyeing. For example, the high temperature method will often cause color change, and the high temperature can not be used for the spandex elastic fabric. It can only be repaired by hand. This method will also leave many small defects on the cloth surface, which greatly affects the product quality.

(2) Shaped wire:

Printing and dyeing factories are accustomed to making a list shallow first and then deep. If the special-shaped silk is mixed in, it is difficult for the human eye to distinguish because of the strong whitening and stone color concealment. Therefore, when the dark color is dyed, the problem has been more than half of the problem. At this time, the gray cloth is ready to be delivered Being caught off guard, sometimes the losses brought to the printing and dyeing process are huge.

(3) Color silk:

It has a great impact on light-to-medium-colored products, and often causes all orders to be overwhelmed. The pre-treatment of dyeing and finishing will remove some colored yarns. Most of the colored yarns cannot be removed during the printing and dyeing process and can only be repaired manually, so the quality of the cloth surface is difficult to guarantee.

The influence of neps on textiles

It affects the rate of breakage of the air-jet loom and increases weaving defects. It also affects the opening of corduroy fabrics, increases missed cuts and holes, thereby increasing weaving marks and repair marks, and it will also cause serious small color spots and stains during dyeing. Little white point. Now that the improvement of weaving technology requires that the utilization rate of cotton yarn grades increases, the phenomenon of neps and impurities becomes finely branched. Common cotton woven fabrics can be contacted with singeing to remove neps. It is more difficult to handle fabrics with spandex yarns. Generally, it is solved by light sanding.

The influence of oily yarn on textiles

For bleaching, light-colored, and particularly sensitive colors, oil stains and greasy yarn must be washed clean and sent to the printing and dyeing factory, commonly known as light-colored blanks. This kind of gray fabrics should not be made of dark colors, as dark colors will cause stains to be repaired. The degreaser used in the weaving factory to wash oil stains is best to be easily removed during the pre-treatment process of printing and dyeing. Therefore, weaving factories must distinguish between dark and light-colored blanks and not be confused, and dyeing factories must distinguish between cast blanks in the production plan. Even if the oily grey cloth is washed, it has no effect on the dyed fabric, and it will reappear after frosting and other subsequent style finishing.

The effect of warp mixing on textiles

Warp yarns with different yarn counts, different twists, and different cottons are prone to dyeing warp defects. Such as warp stripe, warp direction yellow and white, etc., elastic cloth is also easy to produce defects such as hidden wrinkle strips.

The influence of stretch yarn on textile

(1) Drafting ratio: The drafting ratio should be appropriate, for example, 40D is 3 to 4 times; 70D is 3.5 to 4.5 times. The larger the drafting ratio, the better the elasticity. Insufficient drafting ratio can easily cause the width of the door to be too wide.

(2) Generally, core-spun yarn is used, and the spandex yarn in the twisted yarn is easy to be exposed.