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The traditional production of polyester antimony catalysts commonly used has many shortcomings:1. in polyester polycondensation, part of antimony catalyst reduction into grey;2. synthetic polyester in spinning, due to the reduction of heavy metal accumulation will increase the pressure of spinning components;3. heavy metal antimony has certain toxicity, not only in the dyeing process of precipitation PET in order to cause environmental pollution, PET terminal products also will become rubbish after year tons of antimony into nature, causing irreversible pollution.As a leading enterprise in the polyester industry, We have long been devoted to contributing to environmental protection. The successful development of environmentally friendly polyester products antimony free , The comprehensive promotion of antimony free environmental friendly polyester product on our polyester production line will set off a revolution in the polyester industry, and practically contribute to China's green development.

SPH fiber is a new type of elastic fiber in the market in recent years, is made of PTT, PET two different thermomechanical properties of polyester compounds by parallel composite spinning, and then after relaxation heat treatment process to form a similar wool fine and dense three-dimensional structure of the curly fiber its tensile resilience is close to spandex, while the elasticity of lasting It has the advantages of easy dyeing and good colour fastness.