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Factors Affecting Yarn Strength
2018/06/01
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Definition of yarn strength:
“Yarn strength” indicates the amount of tensile load the yarn can withstand. It is classified as absolute yarn strength and relative yarn strength. Relative yarn strength is used when comparing the strength of a yarn with respect to another one.
Factors affecting yarn strength Spinning Method:
Different spinning method results in different structure of the yarn, which yields significant yarn strength differences.
Blending Ratio:
For two-component yarns, when the composition of one material increases, yarn strength generally decreases. This trend continues until the lowest yarn strength is reached with the increasing composition of that certain material and will begin to rise if the increase in the composition of that material continues.
Yarn Structure:
Yarns with high radial fiber migration that is distributed evenly tend to have higher yarn strength; With layered fiber distribution that involves a lot of kinking and hooking will tend to have lower yarn strength.
Fiber Properties:
The strength of yarn increases along with stronger fiber that has lower linear density and greater length.
The higher the air temperature of the environment, the lower the yarn strength; The higher the relative air humidity, the higher the moisture regain of the yarn. This results in the increase in the strengths of cotton and ramie yarn and the decrease in strengths of woolen and synthetic(or artificial) fiber yarns.
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