on the basis of the number of ply, the yarn can be classified into two categories:
on the basis of the direction of twist the spun yarn can be classified into three categories:
on the basis of the degree of twist, the spun yarn can be classified in three categories:
according to the spinning technology used, the spun yarn can be classified into two groups:
The effect strand creates decorative detail such as knots and loops. The binder is used to tie the effect yarn to the base yarn if the binding is necessary.
This yarn is made of staple fibers. Some quantity of PVA fibers is added with the main content. this PVA content is soluble in hot water and is eliminated completely after processing. Thus the hollow space ( air space) is created in the yarn. this yarn becomes softer. the moisture absorbency of yarn is also increased.
Types of rapier weft transfer process, Negative weft transfer and positive weft transfer
Rapier weft insertion system l Types of rapier looms l Weft yarn passage and working principle of rapier weft insertion system
An introduction about shuttleless weaving ( a non conventional weft insertion system)
Parallel picking or parallel weft insertion systems
Structure and working principle of water-jet loom weft insertion system
Structure and working principle of projectile loom weft insertion system
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