Yarn according to the combination of fiber raw materials, can be divided into pure spinning yarn, blended yarn and blended fiber yarn, the three in the composition of raw materials, performance characteristics and application scenarios on the significant differences. Pure spinning yarn made of a single fiber, such as 100% cotton, 100% wool or 100% polyester yarn, can maximize the retention of the inherent characteristics of the raw material fibers, such as cotton yarn moisture absorption and breathable, skin-friendly and comfortable, pure wool yarn warmth, good elasticity. These yarns are simple in process, pure and stable in performance, and are suitable for scenarios where there is a clear demand for a single function. For example, cotton yarn is commonly used to make intimate apparel such as underwear and T-shirts, and pure wool yarn is a common raw material for sweaters and scarves, but there are also shortcomings in performance, such as cotton being easy to wrinkle, and pure polyester being poorly ventilated.
Blended yarn is two or more different fibers first evenly mixed, and then spun together into a common combination of cotton and polyester, wool and acrylic, cotton and nylon. Its core purpose is to achieve complementary performance, by adjusting the mixing ratio of different fibers, can be targeted to optimize the performance of the yarn, such as cotton and polyester blended yarn can take into account the skin-friendly comfort of cotton and polyester wear-resistant wrinkle-resistant, wool and acrylic blended yarn can ensure warmth while reducing costs. This type of yarn performance is comprehensive, applicable to a wide range of scenes, cost-effective, although the process is more complex than the pure spinning yarn, but to meet the public demand for multi-functional fabrics, like cotton and polyester blended yarn is commonly used in shirts, workwear, wool acrylic blended yarn is mostly used for low and middle-end wool sweater.
Blended yarn through a special spinning process, so that two or more than two kinds of fibers in a specific structural form combined into a yarn, rather than a simple mixture of fibers in the yarn as a core layer, skin layer, wrapped layer and other specific distribution. For example, core yarns use one type of fiber for the core to provide strength or elasticity, and another type of fiber for the skin to ensure skin-friendliness or luster; wrap yarns use staple fiber yarns or filament spirals to wrap the filament core. Its performance is more precise and controllable, and it can play the structural advantages of different fibers at the same time, like spandex core-cotton skin layer of wrapped yarn, which has both the elasticity of spandex and the skin-friendliness of cotton, and it is suitable for the production of lingerie, stretch jeans and so on. However, this type of yarn process is complex, requires special equipment, high cost, low production efficiency, mostly used in high-end functional fabrics, such as stretch suit fabrics, high-end sportswear fabrics.
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