Uses and Characteristics of Double-Core Yarn
Release time:
2025-02-26
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Abstract
Double-core yarn is a type of yarn produced by twisting together two different types of long filaments—each with distinct properties—while using short fibers as the outer covering material. Due to the complementary nature of the two core filaments, which have differing characteristics, the resulting yarn exhibits superior performance. For example, in the case of cotton-covered T400 plus spandex, the T400 filament boasts excellent bulkiness, outstanding elastic recovery, superior dimensional stability compared to spandex, and higher tensile strength. Moreover, it can withstand repeated stretching without losing its integrity. By using these two filaments—with their respective exceptional elastic properties—as the core strands and wrapping them with cotton fibers, the resulting yarn not only retains the softness, elasticity, and moisture-absorbing qualities of cotton but also benefits from the enhanced strength, abrasion resistance, and dimensional stability of the spandex. In addition to these advantages, the yarn maintains the relaxed feel characteristic of cotton-spandex blends while offering improved durability and tear resistance. When worn, it provides a comfortable, non-constricting, and non-pressuring fit, ensuring stable sizing over time. Fabrics made from this yarn exhibit minimal shrinkage and excellent shape retention.
Long-term commitment to the development and production of a series of core-spun yarn devices, spandex core-spun yarn devices, filament core-spun yarn devices, double core-spun yarn devices and other products can be used on long and short spinning machines of different manufacturers. According to the classification of guide roller materials and processing technology, users can be provided with core-spun yarn devices with high, medium and low prices.
Double-core core-spun yarn is a composite yarn spun from two filaments as the core yarn and coated with one or more short fibers (such as cotton, hemp, wool, silk, polyester, viscose, etc.). Usually, elastic filaments and rigid filaments are used as the core yarn. The composite yarn not only gives full play to the high elastic characteristics of elastic filaments, but also has the tensile and wear resistance characteristics of rigid filaments, and maintains the surface characteristics of coated short fibers, it is one of the ideal yarns for popular stretch fabrics in China at present. The other is double-filament core-wrapped yarn, which is a core-wrapped yarn with two rigid filaments wrapped in the center of the yarn and one wrapped around the outside of the yarn. The composite yarn realizes that the two filaments have different positions and shapes in the yarn. One filament is wrapped in the middle of the staple fiber to form a core-wrapped structure, which can be less exposed to sunlight, to prevent the strength from decreasing, another filament and the yarn of the core-wrapped structure are wrapped together to form a wrapping structure, which provides good abrasion resistance for the yarn. The composite yarn is the best choice for the production of training clothing and gun clothing.
Jinzhong Jingwei Tianying Machinery Co., Ltd. has more than 20 engineering and management personnel, with all kinds of advanced production equipment, design and manufacturing and other advanced technological means, around the special parts and auxiliary devices of textile machinery, the enterprise has established a development mode relying on the main machine of warp and weft spinning machine, independent research and development and independent production. The double-core spun yarn device designed and manufactured by our company makes full use of the original space of the main machine. On the basis of the original spinning principle, the new spinning device is installed, which broadens the spinning range of the spinning machine. The device has excellent yarn forming index, makes up for the defects of the traditional double-core spun yarn device, and makes the yarn more texture and aesthetic.
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