Apparel fabrics are made of fibers through spinning, weaving, dyeing, and finishing processes.
Yarn is a general term for yarn and thread, and the two are different. Yarn is made by splicing many short fibers of varying lengths, or twisted from very long continuous monofilaments. Thread is made by combining and twisting two or more single yarns, also known as strands. And by combining two or more strands and twisting, it is called double twisted strands.
There are many ways to classify yarns, such as by composition, by length of raw fiber, by thickness, by weaving purpose, by yarn structure, by spinning process, by finishing process, etc. Today we introduce several common classification.
1. Yarn can be divided into pure spinning yarn and blended yarn according to the composition.
Pure spinning: Yarn made of one kind of fiber, such as pure cotton, pure hemp, pure polyester, etc.
Blended yarn: Yarn made of two or more fibers, such as cotton polyester, cotton linen, wool viscose, etc.
2. Yarn can be divided into spun yarn and filament yarn according to the length of raw fiber.
Staple Yarn: Yarn made of short fibers, such as cotton yarn, hemp yarn, wool yarn, etc.
Filament yarn: Yarn made of filament fibers, such as silk, chemical fiber filament, etc.
3. Yarn can be divided into warp yarn, weft yarn and knitting yarn according to the weaving purpose.
Warp yarn: It is the warp yarn used for weaving. Since the warp yarn bears great tension and friction during weaving, it requires high strength and proper twist.
Weft yarn: It is the weft yarn used for woven weaving. Since it does not undergo large tension and friction like warp yarn during weaving, the strength requirement is lower than that of warp yarn, but it needs to have certain softness and twist stability.
Knitting yarn: Since it is required to be soft and smooth when knitting into a loop, wax emulsion manufacturers, and smooth when passing through a crochet needle, it requires clean, uniform, and lower twist than warp and weft yarns.
4. Yarn can be divided into single yarn, stranded yarn, composite stranded yarn, fancy yarn, core yarn/covered yarn according to the yarn structure.
Single yarn, strand, composite strand: The second paragraph of this article has been introduced, so I won’t repeat it here.
Fancy yarn: twisted with two or more yarns of different thickness, different raw materials, different structures or different colors, or twisted and combined by a special method to make a special shape or structure of strands. Such as slub yarn, belly yarn, knot thread, chenille thread, etc.
Core yarn/covered yarn: wrapped by core yarn and outer yarn. The core yarn is in the center, usually synthetic fiber filaments (polyester, nylon, spandex, etc.) with good strength and elasticity, and natural fibers such as cotton and wool are outsourced. The difference between the two is that the core yarn cannot be seen in the core yarn, and the core yarn can be seen in the covered yarn. Such as cotton ammonia sand, Jin ammonia yarn and so on.
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