I. What are the characteristics of filament yarns
The filament yarns in natural fibers are mainly silk; most chemical fibers are made into filaments first, and then change according to needs into other forms.
Filament yarn is a yarn processed from filaments alone. It is different from the concept of spun yarn. It has the characteristics of smoothness, uniformity, strong luster and high strength. The specific manifestations are in the following aspects:
1. Structure: The fibers are highly parallel, closely arranged, and have strong regularity in the arrangement of the fibers. The yarn structure is monotonous and the twist is generally higher. few.
2. Physical and mechanical properties: The fiber strength utilization coefficient is high; the yarn diameter is small, the density is high, and the bulkiness is low; the mechanical properties of the yarn are relatively uniform; High bending stiffness.
3. Appearance: The fiber is straight, the yarn is smooth and the gloss is good.
4. Touch: The hand feels hard, smooth, waxy (referring to chemical fiber), and cold.
5. Application: Filament yarns are often used to make light, smooth, fine, rejoicing fabrics and special fabrics.
Second, what is the fineness of filament yarn?
The characteristics of filament yarn have been known in the previous article, then in daily life , Do you know what the fineness of filament yarn means?
The fineness of filament yarn is usually expressed by D, for example: 150/D, the larger the D number, the thicker the filament.
In addition, the fineness of wool yarn is usually expressed in NM (public count), for example: 1/30, the larger the count, the finer the yarn count.
Indicates the fineness of the strands in NE (English) or NM (public).
1. Public count: a yarn weighing 1000G has several 1000M in its length, which is called several yarns.
2. British count: 1 pound of yarn, it has several 840 pounds in length, which is called several counts of yarn.
3. Conversion between the two: NE=0.583*NM, NM=1.695*NE.
