Calculation method for the tensile force of worn loop yarn

Fancy yarn is a type of strand with a unique structure, and its appearance differs from conventional yarn. Wearing tests were conducted on loop yarn. The calculation method for the tensile force of worn loop yarn was established by integrating the calculation methods of tensile force for ply yarn and loop yarn to control the tensile force of loop yarn accurately during wearing. Its accuracy in calculating the tensile force of worn loop yarn was verified. As the wear continued, the loop yarn became fuzzy and had broken yarn, and the tensile force of the component yarn continued to decrease. By comparing the calculated and measured tensile force of worn loop yarn, it is found that the revised calculation formula for tensile force can predict the tensile force of worn loop yarn, and this method is more accurate than other previous methods. Therefore, the revised formula for the tensile force applies to calculate the tensile force of worn loop yarn, and it can also be used for tension adjustment in the fuzzing process of loop yarn.