High one characteristic polyester string

摘要

The polyester string which from polyester and 3 mass % the polyolefine additive under is produced, when that string being placed under tension afterwards in packing reinforcement use, shows the tolerance which is improved vis-a-vis the separation of longitudinal direction. The polyolefine, when putting the polyester string under tension, improves the tolerance for the separation of longitudinal direction of the string without promoting the extension of the longitudinal direction which the polyester string is not desired. The polyolefine additive also or you combining with the other former additive him may use independently in order to decrease cost.