Yarn Tension and Yarn Strength

CHINA, HEFEI (April 01, 2024)--In general, "yarn tension" refers to the degree of tension in the yarn after being exposed to an external force. https://fyitester.com/yarn-tension/
In the spinning process, tensions exist between roving yarns and fine yarns. To elaborate further, consider the twisting and winding process: The tension of the yarn from the front roller to the yarn guide hook is termed spinning tension; the tension of the yarn from the yarn guide hook to the traveler is called balloon tension; and the tension of the yarn from the traveler to the bobbin is called winding tension.
Yarn tension occurs throughout the weaving process, including warp tension, weft tension, yarn wrapping tension, and so on.
In textile engineering, yarn tension results from work. The things that exert and receive force change according to the settings and situations.
Yarn tension is a process parameter used in all weaving processes.
Tension affects not just yarn breakage but also the efficiency of the machine. It is also linked to weave shrinkage and fabric quality.
Tension is connected not only to the qualities of fibers and yarns, but also to the setting of other process parameters in each manufacturing process.
Theory and industrial practice demonstrate that end breakage is poorly related to yarn strength but strongly related to yarn tension. As a result, yarn tension is extremely important in production, process setup, and product development.

Differences between yarn tension and yarn strength

There are certain distinctions between yarn strength and tension, which are mostly manifested in their qualities, influencing variables, purposes, functions, and measuring techniques.

Properties
Strength is defined as the highest tensile force that a yarn can endure while stretching. It is closely connected to the fabric's breaking strength and is a reliable measure of yarn quality. Tension is defined as the amount of pulling force applied to the yarn, which has a significant impact on the fabric's quality and consistency.

Influencing factors
Strength is influenced by yarn quality, thickness, material, and fiber length, whereas tension is influenced by yarn density, fabric structure, and machine speed.

Purposes
Strength is an indicator of yarn quality and application. It may be used to assess yarn strength, abrasion resistance, breakage rate, and other properties in order to select appropriate yarns for specific textile production. Tension is used to maintain fabric quality and consistency. The main component of stability may be regulated by adjusting the loom tension to guarantee that the fabric is flat, dense, has texture, and meets particular textile needs.

Functions
Strength is directly tied to the fabric's durability, or capacity to withstand tensile failure. Tension has a significant influence on the structure and look of the cloth. For example, high tension will result in an irregular organization and look of the cloth.

Measurement methods
The major ways for measuring strength are the direct method and the indirect approach. The direct technique is to directly measure the yarn's strength using a tensile test, whereas the indirect way is to calculate the strength using other pertinent physical parameters. Tension is typically measured by measuring the yarn's tensile deformation at a certain speed and distance.

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