What Is a Yarn Manufacturer?

Yarn is a kind of textile. It is processed into various fineness products with various textile fibers. It is used for weaving, rope, thread, knitting and embroidery. It is divided into short fiber yarn and continuous filament.

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Yarn is a kind of textile, which is processed into various fineness products with various textile fibers.

Yarn is divided into: short

1) Bulk density: reflects the characteristics of fiber stacking;

2) Fibrous

There are two ways to solve the problem of yarn strength. One method is to use more advanced spinning technology to spin yarns that can be applied to easy-care fabrics, such as compact ring spinning technology, without changing the raw materials.

The second method is to adjust the raw materials and change the structure of the yarn. The original natural fiber and the fiber with good performance that meet the requirements of easy care are combined by a certain spinning method to obtain a satisfactory yarn. There are blended yarns, composite yarns, etc., which are introduced separately below.

Blended yarn

The mixed spinning of two or more kinds of fibers mainly adopts loose fiber mixing and sliver mixing. Increase the strength of the entire yarn through the original fiber material and other fibers with high strength and high modulus. Such composite yarns include traditional polyester / cotton, polyester / viscose, polyester / wool, etc., as well as polyester / cotton / Tencel fibers,

Classified by yarn material

First, impurity removal

Spinnography is a science that studies the processing of textile short fibers into yarns. Generally, yarns are made from many short fibers of different lengths by splicing, and twisted by long continuous filaments. Combined. In the spinning process, it is necessary to remove impurities first, that is, to perform preliminary processing of the raw materials, also known as the preparation of spinning raw materials. Different types of raw materials, different types and properties of impurities, different processing methods and techniques. The primary processing methods of raw materials are mainly physical methods (such as ginning), chemical methods (such as degumming of hemp, and scouring of silk), and physical and chemical methods (such as wool washing and decharging).

Second, release

To process the disorderly and closely related fibers into a longitudinally ordered sequence, and to have smooth yarns with certain requirements, it is necessary to turn the block fibers into a single fiber state, remove the horizontal connection of the fiber raw materials, and establish a strong end-to-end connection. Vertical connection. The former is called fiber dissolution, and the latter is called collection of fibers. The loosening of fibers is to completely remove the horizontal connection between fibers. However, damage to the fibers must be minimized. The collection of fibers is to make the loosely processed fibers re-establish an orderly vertical relationship. This connection is continuous, and the fiber distribution in the collection should be uniform, and at the same time have a certain linear density and strength. The fiber assembly also needs to have a certain twist. The assembly process is not completed at one time, and it can be completed through multiple processes such as carding, drawing, and twisting.

Third, open

Opening is to tear large pieces of fiber into small, small fiber bundles. Broadly speaking, the degumming of hemp is also an opening. As the opening action progresses, the connection between the fibers and the impurities weakens, so that the impurities are removed and the fibers are mixed. The opening effect and the removal of impurities are not completed at one time, but are realized gradually through the rational configuration of the effects of tearing, striking and splitting.

Combing

The carding function is to further loosen the fiber pieces and bundles into a single state by a large number of dense needles on the carding machine, thereby further improving the fiber unwinding. After carding, the horizontal connection between the fibers is basically released, and the effect of removing impurities and mixing is more sufficient. However, a large number of fibers are curved. And with hooks, there is still a certain horizontal connection between each fiber. The earliest spinning machine

Five, combing

The combing function of the comber is to use the comb to perform more detailed combing in the state of holding the two ends of the fiber respectively. The combing machine can eliminate short fibers and small defects under a certain length, and promote more parallel and straight fibers. Chemical fiber is generally not processed by a combing machine because of its regular length, less impurities, and straight and parallel state.

Six, drafting

The carded sliver is drawn and thinned to a predetermined thickness gradually. This process is called drafting. It laid the foundation for the firm establishment of a regular head-to-tail connection between fibers. However, drafting will cause uneven short sections of the sliver. Therefore, a reasonable drafting device and process parameters need to be configured.

Twisting

Twisting is to twist the sliver around its own axis, so that the fibers parallel to the axis of the sliver are helical, thereby generating radial pressure to fix the longitudinal connection between the fibers.

Eight, winding

The semi-finished product or the finished product is wound into a certain form to facilitate storage, transportation and processing of the next process. This process is called winding. The winding process should be carried out continuously without affecting the output and quality of the product. Efforts should be made to achieve continuous production between the various processes to minimize the quality problems caused by the winding process. In short, the spinning process generally includes the functions of raw material preparation, opening, carding, impurity removal, blending, drafting, merging, twisting, and winding. Some functions are achieved through repeated iterations.

Yarn processing

Wool tops mixed tops needle combs rovings spun yarns combined yarns skein inspection finished product packing.

Yarn use

Wool yarn and wool are generally used in textile sweaters, woolen pants, wool vests, scarves, hats and gloves, and various spring and autumn clothing accessories. In addition to keeping warm, they also have a decorative effect.

Main yarn producing countries

Some domestic wool textile mills have importing countries and regions such as Hong Kong, Japan and South Korea.