Method for preventing yarn breakage

Abstract

The invention pertains to the use of a multifilament yarn spinning process comprising individually washing each filament of a multifilament yarn and, if neutralized, individually neutralizing each filament of the multifilament yarn, for preventing yarn breakage during the spinning process, the spinning process comprising spinning of a polymer through a spinneret to obtain the multifilament yarn, washing the yarn, and optionally neutralizing and / or drying the yarn and winding the yarn onto a bobbin Preferably the yarn is washed with jet washers.

Description

technical field [0001] The present invention relates to a method for preventing yarn breakage during the spinning process of filament yarns. Background technique [0002] A common problem in yarn manufacture is that the yarn breaks on the roll machine during liquid handling. During the liquid treatment of yarn, such as during washing of the yarn immediately after spinning, the yarn is usually turned several times around a pair of rollers and the yarn is sprayed or otherwise mixed with the washing liquid touch. Difficulty maintaining process continuity due to yarn breakage and spinning process stoppage due to filament breakage. It is therefore common to minimize this problem by keeping the spun yarns separated from each other. In US 5,034,250 it is described that yarn breakage on rollers during liquid handling can be mitigated by using synchronous motors to drive pairs of rollers. It has been found that the use of such synchronous motors arranged to drive the rollers at s...

AI Technical Summary

Problems solved by technology

However, using only synchronous roller drive motors does not sufficiently reduce yarn breakage, instead light tension must be applied to the yarn to ensure proper advancement and proper spacing