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Sewing thread is the yarn used to combine two or more fabric pieces together in garments, accessories, and other textile products. Thread may be comprised of the same construction and fibre content as the garment, but is often different. Thread encompasses the majority of the stress and strain from movement and needs to be strong and durable. It must resist breaking and be compatible with the rest of the garment in terms of color, care instructions, and construction. Major quality checks for sewing threads include construction (diameter and fineness), strength and elongation, shrinkage, twist, twist balance, and color. The other parameters include sewability, imperfections, finish, package density, and winding. Sewability is tested by sewing the thread in the intended fabric at the highest machine speed. The sewn fabric should consist uniform and consistent stitches, which indicates good sewability. Sewing thread should be free from imperfections such as knots, slubs, thick and thin places.
Raw white sewing thread features the property of non-bleaching, non-fading, non-balling, non-knotting, uniform thickness, smooth, strong tension and warp pull. The use of environmentally friendly polyester is more durable and stronger than small-volume handmade sewing threads. The thread does not contain azo and are non-irritating to the skin. They can be directly contacted with the skin and meet the standards of clothing. The thread breakage rate is lower than similar products. It has good lubricity and good sewing effect. The heat shrinkage rate at 150 is less than 2%. It can be used for general fashion fabrics, all kinds of knitted fabrics, silk, shirts, swimwear, ties, raincoats, sportswear, gloves, etc. This sew all thread set provides good performance for both hand and domestic machine. It can be used for many projects include sewing, clothing repair, alteration, cushion making, tailoring, tapestries and any other stitching work.
The spun polyester bright sewing thread means the raw material is polyester short fibre, not filament . In different sewing thread factories, the raw material decides these factories’ markets. In sewing thread market, most goods are spun polyester bright sewing thread, and others are filament sewing thread including nylon sewing thread, aramid sewing thread and so on.