What are the types of yarn

1, the use of different raw materials: cotton yarn, pure chemical fiber yarn, cotton type blended yarn, wool type blended yarn, shaped yarn and so on. Blended yarn refers to the yarn spun by two or more different fibers mixed in a certain proportion.

2, different methods of spinning: ring spinning yarn, air spinning yarn, electrostatic spinning yarn. Ring spinning is by the spindle and steel collar, steel wire ring twisting, drawing by the roller for a mechanical spinning method; air spinning is the use of airflow will be cohesive fibers in the high-speed rotating spinning cup twisted output into yarn; electrostatic spinning yarn in the spinning process using the static field so that the fibers straighten parallel arrangement and cohesion.

3, spinning process is different: carded cotton yarn, combed yarn, peach hair yarn. Combing is in the process of cotton yarn after combing machine, its purpose is to remove more short fibers, impurities, strip dry strength better.

4, twisting direction of the different: free-wheeling twisting yarn, backhand twisting yarn.

5, the different uses of the product: yarn for weaving, knitting yarn, piling yarn, yarn for rope and belt, yarn for fishing net, yarn for cordage, etc..

Expanded information:

Yarn production principle

1, deburring

Yarn is generally made of many lengths of short fibers by twisting the method, and by a very long continuous monofilament twisted together. In the spinning process, the first need to remove defects, that is, the raw materials for the initial processing. Different types of raw materials, raw material preliminary processing methods are mainly physical methods, chemical methods and physical and chemical combination of methods.

2, release

The disordered, transversely closely linked fibers processed into longitudinal order, and has certain requirements of the smooth yarn, the need to block fibers into a single fiber state, lifting the fibers of the existence of raw materials in the transverse connection, the establishment of a solid head and tail of the longitudinal connection. Fiber loosening is to completely lift the transverse connection between the fiber and the fiber. But must minimize fiber damage.

3, loosening

Loosening is a large piece of fiber torn into small pieces, small fiber bundles. Broadly speaking, the degumming of hemp is also a kind of loosening. With the opening action, the fibers and impurities between the contact force is weakened, so that the impurities are removed, and at the same time, the fibers are mixed with each other.

4, carding

Combing role is a large number of dense comb comb on the carding machine to fiber small pieces, small bundles of further loosening into a single state, thus further improving the fiber loosening. After combing the lateral connection between the fibers is basically lifted, the removal of impurities and mixing effect more fully. However, a large number of these fibers are curved and have curved hooks, and there is still a certain degree of transverse connection between each fiber.

5, combing

The combing role of the combing machine is to use the comb to the two ends of the fiber are held under the state of more detailed combing. Combing machine processing can exclude a certain length of short fibers and small defects, promote the fiber more parallel, straight. Chemical fiber because of its length neat, less impurity, straight parallel state is good, generally not through the combing machine processing.

6, drawing

The carding of the strip after the draw length, gradually reach a predetermined thickness, this process is called drawing. For the fibers to firmly establish a regular relationship between the first and last connection laid the foundation.

7, twisting

Twisting is the whisker around its own axis to be twisted, so that the fibers parallel to the whisker axial spiral, thus generating radial pressure to make the longitudinal connection between the fibers fixed.

8, winding

Semi-finished products or finished products will be coiled into a certain form, in order to facilitate the storage, transportation and processing of the next process.

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