Monthly Archives: September 2025

Polyester (such as PET chips and PBT) is one of the most widely used synthetic polymers in textiles, packaging, and engineering plastics. Its industrial production typically involves esterification/transesterification followed by polycondensation. Below is an overview of the mainstream polyester production processes, their advantages and disadvantages, and the future trends in sustainable polyester development. 1. Direct Esterification

As sustainability becomes a global priority, an increasing number of brands are seeking eco-friendly polyester fiber manufacturers in China and beyond. One of the most effective solutions is blending recycled PET (rPET) polyester fibers with virgin PET (vPET). Blending and Spinning of rPET and vPET reduce carbon emissions, lower costs, and ensure fabric performance remains