Micron
Micron is a unit of length used to express fiber thickness, and in apparel it is mainly used to indicate the average fiber diameter of animal hair fibers such as wool.
Contents6 sections
Definition and Overview
Micron is a unit of length, and 1 micron is 1/1000 of a millimeter. In the fiber field, it is mainly used to indicate the diameter of a single fiber, or the average value, for animal hair fibers such as wool and cashmere.
It is not a unit that directly indicates fabric thickness, yarn thickness, or fabric weight. Even with raw material of the same micron value, the look and feel of the textile can change greatly depending on fiber length, twist, yarn count, weave structure, and finishing.
Effect on Handfeel and Function
In general, the finer the fiber diameter, the less irritation there tends to be when it touches the skin, and the more likely it is to have a smooth, soft handfeel. Fine fibers can reflect light delicately, and the surface may appear refined.
However, micron value alone cannot determine warmth retention, durability, or pilling tendency. It is important to check fiber length and strength, blend ratio, spinning method, woven or knitted structure, and finishing processes together.
Main Applications
Micron notation can be seen in descriptions of wool raw materials used for suits, jackets, coats, knits, and scarves. For worsted materials, it is one of the reference points when considering projects that seek a delicate surface feel and a smooth touch.
You cannot decide whether something is for spring and summer or for autumn and winter by micron value alone. Seasonality is designed comprehensively based on fiber diameter, as well as fabric weight, density, structure, whether it is brushed, and the lining and tailoring.
Selection and Handling Notes
When selecting raw materials, use the micron value as an indicator of the direction of the handfeel, and always check the tactile feel, firmness, drape, sheerness, and ease of handling during sewing with an actual swatch or roll. In the planning stage, also check the blend ratio and finishing conditions.
Fabrics containing fine animal hair fibers may show noticeable surface changes due to friction or excessive mechanical action. The degree of shrinkage or felting caused by washing is not determined by micron value alone, so follow the care label, and conduct washing and sewing tests before mass production.
- In sewing, for thin or soft fabrics, check needle marks, seam shrinkage, and puckering in advance.
- Select interfacing and sewing thread to match the softness and stretch of the outer fabric.
Differences from Similar Terms
Count and denier are indicators of yarn thickness, and they differ from micron, which indicates the diameter of a single fiber. Count is based on yarn length per a fixed weight, and denier is based on yarn weight per a fixed length.
Super numbers are circulated mainly as an indicator related to the fineness of wool, but they are not micron values themselves. Since there is variation in how such labels are interpreted and used, individual raw material specifications such as micron value, fiber length, and blend ratio should be checked separately.
Frequently Asked Questions
Does a smaller micron value mean higher quality?
The smaller the value, the finer the fiber, and in general it becomes easier to achieve a soft, smooth handfeel. However, quality is not determined by fineness alone. It should be evaluated together with fiber length, the condition of the raw material, spinning, woven or knitted structure, dyeing and finishing, and suitability for the intended use.
Can micron value tell me about fabric shrinkage or washing method?
It cannot be determined from micron value alone. Shrinkage and washing durability are affected by the fiber type, processing, structure, sewing specifications, and more. In particular, animal hair materials may change with friction or temperature during washing, so check the material care label and conduct advance tests.
