Density Of Common Fabrics

The density of fabrics refers to the number of warp or weft yarns that the fabric has per unit length.

It is divided into warp density and weft density.

The measurement method is commonly used in China: the number of yarns in the 1 inch (2.54 cm) length.

For example, the warp density of a fabric is 128 inches / inch, and the density of the weft yarn is 60 inches / inch. When writing, we use the density and weft density to represent 128 x 60.

The linear density and length of fiber are the degree of fiber thickness.

The length of a fiber refers to the length of the fiber.

Textile fibers must have a certain linear density and length, so that fibers can be fused with each other and depend on the friction force between fibers.

Therefore, textile fibers have a certain linear density and length, which is one of the necessary conditions for textile processing and the use value of products.

The line density of textile fiber is closely related to the yarn and fabric made from textile processing.

Generally speaking, the low density and evenness of fiber will help textile processing and product quality.

In the influence of fiber linear density on fabric wearability, the fabric made of finer fibers is softer and gloss is softer. A lighter fabric can be made from finer fibers, and also a fabric with good breathability and silk like effect.

But the fabrics made of fine fibers are easy to pilling and pilling, and coarse fiber fabrics can be used to make stiff, rugged and thick fabrics.

Similarly,

The length is also closely related to the quality of textiles and products.

Fiber length, length uniformity and short fiber content are beneficial to textile processing and product quality.

Under the same conditions, the fibers are longer, the yarn strength is high, the evenness is uniform, the yarn surface is bright and clean, the fabric is made with good fastness, smooth appearance, and is not easy to pilling and pilling.

In addition, under the premise of ensuring the yarn quality, the longer the fiber is, the finer the yarn can be spun, and it can be used to make lighter fabrics.

For shorter lengths, length is more important than linear density. For example, the length of cotton is the most important index in terms of grading and pricing.

In textile fibers, the linear density and length of natural fibers are not uniform. Sometimes the difference is larger. It varies with fiber varieties and growth conditions.

Chemical fibers are manufactured manually. The linear density and length of fibers can be controlled and determined in a certain range according to the requirements of fiber processing and use.

The bulky yarn is first blended with two different shrinkage fibers to form yarns, and then the yarn is treated in steam or hot air or boiling water. At this time, the fibers with high shrinkage are contracted at the center of the yarn, and the low shrinkage fibers mixed with them are extruded on the surface of the yarn due to small shrinkage, thus obtaining bulky, plump and elastic bulky yarns.

Generally, synthetic filament yarns with strong strength and good elasticity are core wires, and yarns are twisted together with short fibers such as cotton, wool and viscose fibers.

Core spun yarn has excellent properties of filament yarn and short fiber.

The more common core spun yarn is polyester cotton core spun yarn, which uses polyester filament as core yarn and cotton fiber.

There are also spandex core spun yarns which are made of spandex filament yarn and wrapped with other fibers.

The knitted fabric or jeans material made of this core yarn is comfortable and comfortable when worn.