Monthly Archives: June 2025

Description High Modulus Low Shrinkage (HMLS) polyester chip is a modified polymer with higher modulus and lower shrinkage than the regular PET. It is primarily used to produce HMLS industrial yarn and tire cord fabric. According to customers' requirements, we can supply pre-crystallized high IV and low carboxyl (COOH Value) HMLS PET Chips. Compared to

Carboxyl End Group (-COOH) content is a pivotal quality parameter in Polyester (PET/PES) chips, directly impacting processing performance and final product properties. How does Carboxyl Influence Spinning and Film Production? Understanding its influence is essential for achieving optimal results in fiber/yarn spinning and film manufacturing. Impact on Fiber Spinning Performance 1. Spinnability Optimization: Optimal COOH