PET masterbatches have so many advantages!

The development of polyester dyeing process in China has gone through a long process. The early polyester dyeing technology was operated under high temperature and pressure. The general process of this dyeing technology is: suspension, tie-dyeing, drying, baking, etc. Steps, this operation process has great disadvantages. First, it needs more energy in a high temperature environment, and the pollution is more serious. Second, the high temperature makes the color easily fade, and it is because of the high temperature. Damage causes the fibers to break down into toxic substances, which can be harmful to the human body.

Colored polyester color yarn, which is mainly composed of polyester chips and PET masterbatch, is obtained by high temperature treatment. It has its own color and does not need dyeing. It reduces the use of fuel and avoids damage to polyester materials during the dyeing process. Reduced the generation of pollution, at the same time, polyester color yarn also has the advantages of simple operation process, good performance and other advantages, and has good development prospects.

The production process of polyester colored silk is roughly as follows: First, PET chips and PET master batches are dried. The color master batches are directly dried and injected with a masterbatch syringe. PET chips need to be pre-crystallized, then dried, and then Mix the two according to a certain amount and ratio, put the obtained mixture in a prepared screw extruder and extrude, then filter the melt, put it in a spinning box, and blow it sideways. Apply oil to the oil roller, heat it to form a pre-network, stretch, shape, and finally wind it to form a finished polyester color yarn.