DTY: false twist is called DTY (D raw textex - tu red Y a rn), also known as stretch wire.

DTY network wire: the filament is a filament of a network point in a network nozzle. Network processing used in xiamen, and DTY polyester FDY such processing, network technology and the network DTY technology combined with manufacturing low stretch silk, both of the textured yarn fluffy and good elasticity, and there are a lot of cyclical and network point, improves the tightness of filament, eliminating the textile processing of several working procedure, and can improve the ability to tow by water jet loom.

With polyester FDY such POY products: high-speed spinning of the spinning speed is 3000 ~ 6000 m/m, in spinning speed 4000 m/m in the following winding wire has high orientation degree, preliminary orientation of silk, known as xiamen (pre - o r ien ted ya rn). If drawing is introduced in the spinning process, the winding wire with high degree of orientation and medium degree of crystallinity can be obtained, which is the whole stretching wire, which is known as FDY (fu lly d raw ya rn).

DT: the draw-twisting is called DT (D raw Tw is t). The DT can be obtained by using POY as the warp twisting machine, drawing the main and giving a small amount of twist. 100D / 36F, 150D / 36F, 50D / 18F, etc. These are the presentation methods of fiber specifications. The data above the oblique line indicates the fiber's ciliate, and D is the unit "denier" of the fiber, which is 9000m under standard conditions

The gram weight of long fiber indicates that 100 grams is 100 Dan (100D); Diagonal lines at the bottom of the data representation when spinning, use of spinneret hole number, also said the number of the specifications of the wire with monofilament, 36 f, for example, means of spinning spinneret with 36 holes, namely the fiber monofilament with 36 root.

A lot of light, semi-dull, all-extinction: to eliminate the luster of the fiber, use titanium dioxide (T iO 2) in the melt to reduce the luster of the fiber. If T iO 2 is not added to the melt, it will be added 0.3 percent to a semi-dull silk, which is more than 0.3 percent of the filament.

50D / 18F iron: for 50 deniers 18 holes, iron pipe rolls. 75D / 36F paper: for 75 denier 36 holes, paper tube rolls. 150D / 36F cation: for 150 denier 36 holes, cationic improved dyeing performance.

Weight: 210D / 72F: a bamboo thread for 210 denier 72 holes. "The thin silk" is a non-standard textile word, which is commonly understood as "bamboo thread", which is a period of thick thin silk.

Filament POY products: preliminary orientation, full name: PRE - ORIENTED YARN or PARTIALLY ORIENTED YARN. An incomplete stretching of filament between unoriented wire and stretched wire is obtained by means of high-speed spinning. Compared with the undrawn silk, it has a certain degree of orientation and stability. It is often used as a special wire for stretching the yarn (DTY). (generally not used for weaving)

DTY: DRAW TEXTURED YARN. It is made by using POY as raw silk, stretching and false twisting. There is a certain elasticity and contractibility. (generally there are network and no network silk, network means network node)

FDY: whole body silk. FULL DRAW YARN. The synthetic fiber filament is made from the spinning of spinning. The fiber has been fully stretched and can be used for textile processing. (it's usually called filament)