Polyester staple fiber is divided into three categories: large chemical fiber, chemical fiber, small chemical fiber
In general, the market now polyester staple fiber is divided into three categories: large chemical fiber, chemical fiber, small chemical fiber.
Large chemical fiber: with PET slices spinning or melt direct spinning of short fibers. Good color, lot number large, strong and stable, less defects, good spinnability
In the chemical fiber: with foreign PET slices or PET back to the material spinning. Price quality between the large and small (between some of the main spinning and Dahua blended to enhance competitiveness)
Small chemical fiber: with PET back spinning. Prices and quality of the uneven, suitable for export to some quality requirements are not too high in the market and areas (such as fillers, etc.)
In general, with the sliced spun fiber it is basically no defects, fiber thickness uniform, smooth surface, feel more silky (but short fiber to see what place to use, the thick generation of silicon and silicon does not add the difference) by hand Pull the words, the general strength of sliced spinning is better, batch number is large, no color, physical indicators evenly.
Generally small chemical fiber production, or is the use of renewable raw materials produced by the short batch of small fiber, the same algebra