Yarn Selection and Pretreatment
Yarn selection (with actual samples for reference)
Materials: Commonly used high-elasticity yarns (spandex core-spun yarn, nylon/spandex blends) and functional fibers (Coolmax® moisture-wicking and antibacterial yarns). Common yarn types are divided into empty-spun and machine-spun yarns. The components are divided into face yarn and back yarn (face yarn is generally nylon and functional yarns, and back yarn is generally spandex-covered yarn).
Specifications: Select the yarn count according to product requirements (commonly used ones are 3030+100D, 3050+100D, 4030+100D, 4030+140D). 3030 represents the count of the face yarn, and 100D represents the count of the spandex base yarn. The higher the yarn count and count, the better the quality and feel, and the more expensive it is. Machine-packed yarn is of better quality than empty yarn and costs about 10 yuan more per kilogram, which is about 1.5 yuan more for an average 200g garment. Yarns with a count below 3030 are suitable for standard sizes, while yarns with a count above 4030 are suitable for plus sizes. The higher the requirements for wrapping and support, the higher the spandex content and count are needed.
