Polyester staple fiber as one of the five major synthetic fibers, there are many taxonomies, the market is still the most commonly used large chemical fiber, chemical fiber and small chemical fiber.

Large Chemical Fiber: PET staple spinning or melt spinning Polyester staple fiber. Good color, lot number, strong and stable, less defects, spinnability.

In the chemical fiber: with other PET slices or with PET back spun. The quality of the price ranged from large to small (some of the major textile mills are used to enhance their competitiveness with large chemical blends).

Small chemical fiber: PET back material spinning. Mismatched prices and quality, suitable for export to some of the quality requirements are not too high in the market and areas (such as filler, etc.).

In general, the use of sliced staple fiber it basically no defects, uniform fiber thickness, smooth surface, feel silky (but to see where the use of short fibers, crude with silicon plus and without silicon difference) Pulling words, slicing general strength is better, lot number, no color, physical indicators.

Generally small chemical fiber production, or use renewable raw materials to produce short staple batch small, the same algebra does not feel large chemical fiber (after treatment except) defects and occasional uneven thickness, extra-long general objective existence, Conventional recycled materials to do the physical indicators to be slightly worse.

Understand the classification of Polyester staple fiber, to better grasp its characteristics, so as to apply to the corresponding field.