Difference between polyester filament and staple fiber

The difference between polyester filament and staple fiber, polyester fiber is divided into two types: filament and staple fiber. The so-called polyester filament is a filament with a length of more than one kilometer, and the filament is wound into a group. Polyester staple fiber is a short fiber of several centimeters to ten centimeters.

Polyester filament is made of polyester filament. Polyester is an important variety of synthetic fibers, and it is the trade name of polyester fiber in my country. It is a fiber-forming polymer prepared from purified terephthalic acid (PTA) or dimethyl terephthalate (DMT) and ethylene glycol (MEG) through esterification or transesterification and polycondensation reactions –Polyethylene terephthalate (PET), a fiber made by spinning and post-processing.

Polyester staple fiber is a fiber obtained by spinning polyester (ie, polyethylene terephthalate, abbreviated as PET, polymerized by PTA and MEG) into tow and cutting. Polyester staple fiber is divided into cotton type staple fiber and wool type.

Polyester staple fiber is mostly used for spinning, such as wool, weaving, etc.; polyester filament yarn can generally be divided into three categories: POY (pre-oriented yarn), FDY (full draft yarn), and DTY (low stretch yarn). POY is mainly used in post-processing production such as the production of DTY, DT, ATY, and can also be directly used in the silk textile industry; FDY is mainly used in clothing and textile industries; DTY is an ideal raw material for knitting (weft knitting, warp knitting) or weaving processing , Suitable for making clothing fabrics (such as suits, shirts), bedding (such as quilts, bedspreads, mosquito nets) and decorative articles (such as curtain cloth, sofa cloth, wall cloth, car interior decoration cloth), etc.

Long fibers are like silk, and short fibers are like cotton. Both long fibers and short fibers are the same. Of course, the fabric of short fibers should feel soft and generally have a little fluff. The cloth made of filaments is stiff, and the elastic yarns are made soft. Each has its own characteristics. The filament elastic yarns can be mixed and interwoven.