Xiaobian: I Learn Knowledge Of Clothes And Fabrics.

Special-shaped fibre It is to improve the physical and mechanical properties by changing the shape of the fiber cross-section, such as triangular structure, which can increase the luster of the fiber, make the fabric have silk luster, clover or five leaf structure with fluffy handle, good thermal insulation, good air permeability and hard pilling.

Melt spinning: melt and melt the polymer into a certain viscosity melt spinning. The spinning pump is continuously and evenly extruded to the spinneret, extruded into the filament stream through the pores of the spinneret, then cooled and solidified in air or water, and drawn through drafting. (nylon, polyester, polypropylene)

Dry spinning: the use of volatile solvents to dissolve the polymer, making suitable for spinning thick liquid. The spinning slime is extruded from the spinneret to form a filament flow. The solvent in the filament flow rapidly evaporates through the hot air sleeve and solidifies through drafting. (polyvinyl chloride, acrylic, vinylon, acetate fiber)

Wet spinning: the fibrin polymer is dissolved in solvents to form a spinning solution, which is spun out of the spinneret to form a viscous filament flow into the coagulant solution, and the filament flows into the fiber due to the diffusion of solvents in the filament flow and the penetration of the coagulant into the viscous filament flow.

Wet spinning is characterized by a large number of spinneret holes, but the spinning speed is slow and suitable for spinning staple fibers. Dry spinning is suitable for spinning filament. Usually, the fibers obtained from dry spinning of different chemical fibers are of uniform structure and better quality than those prepared by wet spinning.

　　 knitting It can be divided into weft knitting and warp knitting. Weft knitting: use one or more yarns to circle the cloth along the horizontal (weft) direction.

Warp knitting: use multiple yarns to circle along the longitudinal direction of cloth. Please pay attention to both definitions, weft knit knitwear

At least one yarns can be formed, but in order to improve production efficiency. It is usually woven with many yarns. The warp knitted knitted fabric can not form a fabric with only one yarn. It can only form a chain formed by a coil.

All weft knitted fabrics can be removed from the reverse direction into yarn, and the warp knitted fabric is basically not. Warp knitted fabric cannot be knitted by hand.

　　 Warp knitted fabric It can be divided into two main categories, one is Raschel fabric, the main feature is bigger flower pattern, coarse cloth, many holes, mainly for decorative fabrics. The second is Tricot fabric, with fine cloth and few colors, but its output is very high. It is mainly used to make coated fabrics and printed cloth. This kind of fabrics usually use chemical filament yarn, otherwise the production efficiency is very low.

EXP: export IMP: Import

T/T: (Telegraphic transfer) telegraphic transfer

D/P: (document against payment) payment documents

D/A: (document against acceptance) acceptance documents

C.O: (certificate of origin) General Certificate of origin

S/M: (shipping marks) shipping mark

P/L: (packing list) packing list, detailed list.

S.S: (steamship) shipping

C/D: (customs declaration) customs declaration form

C/O: (certificate of origin) certificate of origin

Polyurethane elasticity fibre As a high-grade textile material, it is a new and high technology material with high manufacturing technology and high added value in synthetic fiber. At present, there are three kinds of spinning methods for spandex, including dry spinning, wet spinning and reactive spinning. However, due to the large investment, complex process, long technological process, low spinning speed, high production cost and serious environmental pollution, the development of spandex production is limited. Therefore, a spandex melt spinning technology with stable product quality, low investment, low cost, solvent free and pollution-free technology has attracted more and more attention from manufacturers. Many manufacturers have invested a lot of money and manpower in research and development.

POY:Preoriented yarn /partially oriented yarn preoriented wire. When the speed of high speed spinning is 3000-3600m/min, preoriented yarn can be made. Under high rolling speed, the fibers have a certain degree of orientation and the structure is relatively stable.

DTY::Draw texturing yarn stretch textured yarn. Also known as polyester low elastic wire, it is continuous or simultaneous stretching and texturing of a finished product on a machine.

FDY:Fully drawn yarn fully stretched wire. It has nothing to do with the production process, but now it is widely spread. It is used as a code for spinning and stretching one step process. It can be rolled by low speed spinning and high-speed stretching. The two processes are completed on a spinning and drawing machine. The production line is low in production cost, stable in finished product, less broken in wool and good in dyeing uniformity.

DTY fiber is curly, POY and FDY fibers are straight, while FDY has stronger strength, POY strength is a little worse.