What is Yarn ? Types of Yarn | Yarn Manufacturing

Posted by Firoz Kabir on Sunday, September 21, 2014 1

Yarn is an assembles of textile fibers that is twisted or laid together so as to form a continuous strand that can be made into a textile fabric. Basically it is a long continuous length of interlocked fibers, suitable for use in the production of textiles materials ( Specially for sewing, crocheting, knitting, weaving, embroidery, and rope making etc.)

So a yarn is a strand of natural or man-made fibers or filaments that have been twisted or grouped together for use in weaving, knitting or other methods of constructing textile fabrics. Types of yarns to be manufactured is dependent on the selection of fibers such as texture, or hand, the fabric to be made as well as qualities such as warmth, resiliency, softness and durability required in the fabrics end uses as well.

A Typical Yarn Classification Chart:

Types of Yarn:

According to their structure

Staple Yarn:

 Spun yarns are made by mechanical assembly and twisting together ( spinning) of staple fibers. Ring spinning, rotor spinning, wrap spinning, air-jet spinning etc. Machines are used to produce this types of yarns.

Ply Yarns:

Single yarns are used in the majority of fabrics for normal textile and clothing applications, but in order to obtain special yarn features, particularly high strength and modulus for technical and industrial applications, ply yarns are often needed. A folded or ply yarn is produced by twisting two or more single yarns together in one operation and a cabled yarn is formed by twisting together two or more folded yarns or a combination of folded and single yarns.

Filament Yarns:

Filament or Continuous filament (CF) yarns are basically unbroken lengths of filaments, which include natural silk and filaments extruded from synthetic polymers (e.g.,polyester, nylon, polypropylene, acrylics) and from modified natural polymers (e.g., viscose rayon). Such filaments are twisted or entangled to produce a CF yarn. CF yarns can be subdivided into untextured (i.e., flat) and textured yarns.

According to their use

Weaving yarns:

 Yarns for woven cloths are prepared for the intended end use. yarns to be used in the warp, the lengthwise direction of a cloth, are generally stronger, have a tighter twist and are smoother and more even than are yarns used for filling the crosswise direction of a cloth.

Knitting Yarns:

This type of yarns are divided into yarns for hand and machine knitting. Knitting yarns are more slackly twisted than yarns for weaving. Hand knitting yarns are generally ply, whereas those for machine knitting can be either single or plied.

Special Yarns

Textured Yarns:

Novelty Yarns: