The Complete Guide to Yarn Hairiness

 

Yarn hairiness refers to the fiber ends or loops that stick out of the main body of the yarn. Since the fibers located on the surface of the yarn are not closely connected with the main body of the yarn, when the yarn is subjected to friction and other external forces, the surface fibers can protrude and become hairy.
Yarn hairiness is necessary for certain varieties such as fleece warm fabrics. When the yarn hairiness is more and longer, the fabric can have good wool texture and warmth retention.
However, the existence of yarn hairiness will affect the smooth progress of subsequent processes, such as causing unclear opening of the warp during the weaving process, increasing end breaks, and reducing labor productivity. At the same time, it will also have a negative impact on the appearance, feel and use of the finished product. If the hairiness is unevenly distributed, defects such as rungs and stripes will appear on the fabric. Excessive hairiness will cause yarn entanglement during weaving to form weaving defects, making the fabric look rough.
The hairiness index of yarn has gradually become an equally important yarn characteristic index as count, strength and elongation.

Types of yarn hairiness

End of hairiness: fiber ends out of the yarn base surface of the subject , while the rest inside the core-yarn.
Planktonic Hairiness: stick to a surface or other loose fibers on the Hairiness of Yarns or wild fibers.
Loop Hairiness: within the core of both ends of the fiber into yarns, yarn showed middle basic surface, forming a ring or rings.

Yarn hairiness tester

Yarn Hairiness Tester is used for determining and analyzing yarn hairiness of various staple yarn like cotton, wool, linen, silk, chemical fiber and blended yarn, allows spinners to forecast how the yarn will behave in subsequent processes and how the finished fabric will look and perform.
The detection system adopts industrial high-speed digital camera, consists of industrial image sensor, optical imaging system and high-speed microcontroller. New technology as well as automatic adjustment of test parameters guarantee stable test condition and improve the consistency of test results.
This blog is reproduced from https://fyitester.com/.

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