Spinning

Definition and Overview

Spinning is the process of making yarn from short fibers as the main raw material. It opens and loosens clumps of fibers, removes foreign matter and short fibers, aligns the fiber direction, draws them out thinly, and adds twist to make yarn with the required thickness and strength.

The choice of raw materials, fiber length, blending method, spinning method, and twisting conditions all affect the quality of the final yarn and fabric. Spinning is a process that comes before weaving, knitting, or dyeing the fabric, and it is not a term that describes woven or knitted structures.

Effect on Texture and Function

Fabrics made from spun yarn generally tend to have fiber ends appearing on the yarn surface more easily, giving them the softness, loft, and warm appearance typical of natural fibers. Depending on the raw materials and spinning conditions, smoothness, luster, fuzziness, and uniformity can vary greatly.

Yarn that is spun after thoroughly removing short fibers and impurities and aligning the fibers has less unevenness and a relatively smooth surface. On the other hand, using intentionally irregular raw materials or processes can create expressive textures such as neps or a slubbed look.

Even with the same material name and the same count, different spinning methods and twist levels can result in different fabric strength, fuzziness, absorbency, feel, and dyeing results. It is important not to judge only by the material label, but to check actual swatches and samples.

Main Applications

Spun yarn is used in a wide range of apparel fabrics, including shirts, cut-and-sew items, knitwear, pants, jackets, coats, and uniforms made with cotton, wool, linen, regenerated fibers, and more. In blended yarns, the strengths of different fibers are combined to adjust texture and practicality.

Smooth, well-balanced yarns such as worsted yarn are suitable for garment fabrics that call for a relatively neat appearance. Yarn such as woolen yarn, which easily traps air, is used for autumn and winter knitwear and coat fabrics that take advantage of loft and warmth.

Selection and Handling Notes

When choosing fabric, do not decide quality or use based only on the label spinning; check the raw materials, blend ratio, count, single yarn or plied yarn, twist, fabric weight, structure, and finishing together. In sewing, for fabrics with a lot of fuzz or soft fabrics, adjust the needle, thread, and feed conditions through trial stitching so that seam slippage and puckering do not occur.

Shrinkage, fuzzing, and pilling from washing vary depending on the fiber type, yarn structure, knitting or weaving, and finishing conditions. In particular, products containing cotton or wool should undergo washing tests before mass production to confirm shrinkage rate, appearance changes, and effects on size design. Follow the care instructions for product maintenance.

• If you want a surface finish with reduced fuzz, check the degree of unevenness in the yarn and fuzz on the fabric sample.
• If you emphasize a natural look, share in the specification sheet the acceptable range for design features such as neps and slubs.
• If shrinkage before or after sewing is a concern, consider the cutting allowance and pattern based on pre-washing or test results.

Differences from Similar Terms

Spinning is the process of making yarn. Filament yarn is yarn made from long, continuous fibers, and it has a fundamentally different structure from spun yarn, which is made by spinning short fibers. However, some yarn types combine both.

Worsted and woolen are classifications mainly related to wool spinning. Worsted is understood as a method of aligning fibers in parallel to make relatively smooth yarn, while woolen is a method of making airy, lofted yarn by making use of even short fibers.

Frequently Asked Questions