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First, coordinate with the form of the stitch: the bag (stretch) sewing machine uses fine cotton thread, the sewing material is not easy to be deformed and wrinkled, and the chain stitch is beautiful and comfortable to feel. Two-line stitches should use a good stretch. Quilted seams should be used for quilting and shoulder seams. Button eye stitches should be selected for wear resistant stitching.
Second, the high-strength polyester thread and fabric characteristics coordination: can ensure shrinkage, heat resistance, wear resistance, avoid the line and fabric differences are too large and cause shrinkage. Generally, the soft and thin materials are made of thin wires and small needles, and thick and thick materials are used for thick wires and large needles.
Third, coordination with the types of clothing: high-strength polyester line special-purpose clothing, such as elastic clothing need to use elastic nylon thread, fire service wear high-strength line of heat, flame retardant and waterproof treatment.
4. Coordination with sewing equipment: The sewing machine uses a left-hand sewing thread, which can be twisted when sewing.
POY pre-oriented silk seed polyester fiber raw material POY pre-oriented silk seed polyester fiber raw material polyester chip (made from petroleum refining) spinning equipment using melt spinning direct spinning POY: Preoriented yarn /partially oriented yarn 3000-3600m/min, pre-oriented silk high-rolling speed fiber production orientation degree structure is relatively stable FDYPOY wire re-drawing wire called full polyester traction wire FDY: Fully drawn yarn Full-stretched silk is widely spread to do spinning Stretching process code uses low-speed spinning, high-speed stretch winding, two-stage spinning and drawing machine, complete production line, low production quality, stable yarn, less dyeing, uniformity, water-washed velvet, POY silk and FDY silk interwoven DTY ::Draw texturing yarn Tensile textured yarn is called polyester low-elastic wire machine for continuous or simultaneous stretching, deformation processing, silk DTY fiber crimping POYFDY fiber straight FDY strong comparison POY strength almost
DTY refers to polyester low-elastic yarn, also called pull-up textured yarn. FDY refers to filament, also called full-stretched silk. POY is called pre-oriented yarn, which refers to the degree of orientation obtained by high-speed spinning in unoriented yarn and stretching. Incompletely stretched chemical fiber filaments between filaments. Compared with undrawn filaments, it has a certain degree of orientation and good stability, and is often used as a special yarn for stretching false twisted textured yarn (DTY). FDY: FULLY DRAWN YARN, fully drawn yarn (Taiwan called full-stretch yarn), which introduces stretching during the spinning process, can obtain a wound yarn with high orientation and moderate crystallinity, which is a fully drawn yarn. Conventional stretched yarns of polyester and nylon are all chemical fiber filaments. FDY fabrics are smooth and soft, and are often used to weave silk fabrics. It has a wide range of uses in clothing and home textiles. Among them, in order to eliminate the gloss of the fiber, a section containing anatase type titanium oxide (T iO 2) is used to reduce the gloss of the fiber. If T iO 2 is not included in the slice as a filament (or large filament), 0.3% titanium dioxide is used as a semi-dull filament, and 1% is a full-dull filament. If you want to get a colored FDY, you can add masterbatch during spinning or put the finished silk into the dyeing bucket for dyeing. Nylon FDY is also called nylon raw silk, nylon filament, nylon raw yarn, FDY nylon yarn, FDY nylon yarn. Common specifications: 40D/12F, 50D/12F, 50D/24F, 70D/24F, 70D/48F, 100D/24F, 140D/48F, 140D/96F, 170D/24F, 200D/24F, 235D/48F, 390D/48F 420D/48F, 780D/96F, 840D/96F... FDY is mainly used to make ropes, wires and belts. Among them, 200D, 390D and 780D are unique specifications of Taiwan FDY nylon yarn. 210D, 420D, 840D corresponding to mainland products can be used instead. Examples of the meaning of the specification data: [1] FDY nylon yarn specification 200D/24F #F222 BR stands for the following meaning: 200D/24F, which means that this is a 200 denier yarn, which is composed of 24 fine yarns. . D stands for denier, and the continent is called denier. It is the unit of the thickness of the plan, which means the weight per 9000 meters (normal 2.5% error). F stands for filament (number of strips), and the front number indicates a yarn composed of several spun yarns, and the more the number of the yarn, the better the feel. #F222 is the production batch number (each machine/batch), it should be noted that different batch numbers cannot be mixed. The production batch number is in industrial production. Although the raw materials and processes are the same, the quality and performance of the products produced by each batch are different. In order to trace the responsibility of this batch of products afterwards, to avoid confusion, each batch of products has a corresponding batch number. BR stands for it is a bright silk, which has a good luster when viewed with the naked eye.
The raw material of high-strength polyester yarn is fdy or poy.
Is the raw material of high-strength polyester yarn fdy or poy? The selection of high-strength polyester thread is very particular. It is directly related to the ability to form a good stitch while maintaining a certain mechanical performance. It is called seamability and is a comprehensive indicator for evaluating the quality of stitching. Generally, the following principles can be followed when selecting:
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