Sewing thread is the thread required for knitted clothing products. Sewing thread can be divided into three categories according to raw materials: natural fiber, synthetic fiber sewing thread and mixed sewing thread. Sewing thread is mostly made of pure polyester fiber.
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What is polyester sewing thread
Polyester is a polymer spun into fibers, usually produced with ethylene phthalate as the raw material. This synthetic fiber offers high strength, durability, and versatility. When processed into sewing thread, polyester demonstrates outstanding wear resistance, excellent color fastness, and strong light resistance. Consequently, polyester sewing thread does not fade easily, even after long-term use.
Polyester sewing thread is also called high-strength sewing thread. It refers to sewing thread produced with polyester as raw material. The polyester sewing thread is strong and does not reduce strength when wet. It has a small shrinkage rate. After proper shaping, it shrinks less than 1%, so the sewn stitches can remain flat and beautiful. The sewing thread and the fabric can maintain consistent expansion and contraction without shrinkage.
Polyester sewing thread is a sewing thread made of polyester fiber, which is usually used for sewing knitted clothing products. Polyester sewing thread has the characteristics of wear resistance, low shrinkage, and good chemical stability. It has replaced cotton sewing thread in many occasions and is widely used in the sewing of cotton fabrics, chemical fibers and blended fabrics.
General Characteristics of Polyester Sewing Thread
Polyester sewing thread is widely used for sewing knitted clothing, cotton fabrics, chemical fibers, and blended fabrics. Because of its durability, low shrinkage, and chemical stability, polyester sewing thread has gradually replaced cotton sewing thread in many applications.
Strength and Wear Resistance
Polyester sewing thread provides high tensile strength and excellent wear resistance. It resists breakage under stress, making it suitable for high-speed sewing and heavy-duty stitching.
Heat Resistance
Polyester fibers tolerate high temperatures and maintain structural stability during ironing or heat treatments. This property makes polyester sewing thread ideal for garments that require pressing at elevated temperatures.
Light Resistance
Polyester sewing thread resists sunlight effectively. It does not fade or turn yellow easily, allowing garments and fabrics to retain bright, vibrant colors even after prolonged sun exposure.
Shrinkage Control
The shrinkage rate of polyester sewing thread is extremely low. After appropriate finishing, shrinkage remains below 1%. As a result, stitches stay smooth, neat, and flat, preserving the beauty of the final product.
Chemical Stability
Polyester sewing thread withstands exposure to various chemicals without losing performance. This stability makes it suitable for workwear and fabrics exposed to challenging environments.
Color and Color Fastness
Polyester sewing thread comes in a wide range of colors. It offers excellent color fastness, so garments remain vivid and do not easily lose their original shade.
Types
- Filament Thread – Smooth, strong, ideal for high-speed sewing.
- Staple Fiber Thread – Soft texture, suitable for general garments.
- Low-Elastic Thread – Flexible and durable, used for stretch fabrics.
Applications of Polyester Sewing Thread
- Knitted and woven garments
- Cotton, chemical fiber, and blended fabrics
- Leather goods and upholstery
- Outdoor and military products
Conclusion
Polyester sewing thread has good color fastness and elongation, high toughness, low shrinkage, uniform twisting, no knots, corrosion resistance, mildew resistance, wear resistance, high and low temperature resistance, and is suitable for high-speed sewing.
Polyester sewing thread has many types such as filament, staple fiber and polyester low-elastic silk thread, and is widely used in clothing products, leather products, military products and other fields due to its high strength, good wear resistance, no knots, light resistance and other good performance characteristics.