The BND-YG171B yarn hairiness testing equipment is the special-purpose equipment determines the yarn hairiness index. And this equipment applies to testing various natural fiber and chemical fiber with pure or mixing form hairiness length, hairiness index and distributing for the textile mill and scientific research, teaching, foreign trade, commodity inspection, etc. to instruct producing, improve the craft, control quality, to research new products, and offer the means of appraising to yarn users.
Yarn hairiness is fibrous end or fibrous loop that reaches out yarn’s surface. There is close relationship between hairiness length, quantity, distribution and fabric inherent quality, appearance quality, feeling. Hairiness length, quantity，distribution are also major influence factors of quality and productivity especially in the shuttle less-loom, knitting production, therefore the hairiness index is a important index of appraise yarn quality, is also the important component basis of reflecting good and bad spinning and weaving.
Adaptation standard: FZ/T01086
2.1 Examination hairiness length: hairiness index of measuring hairiness length for 1、2、3、4、5、6、7、8 every time.
2.2 Hairiness length accuracy: lower than 0.1mm
2.3 Hairiness resolution: lower than 0.5mm
2.4 Test speed: 15m/min±5％、30m/min±5％。
2.5 Segment length in the yarn tests: 1—100m.
2.6 Test times continuously: 1—100 times
2.7 Pretension range：5—50cN
2.8 Statistics: average, irregularity, Maximum-difference.
2.9 Adjust the parameters of the work: automatic adjustment / manual adjustment.
2.10 Power: AC 220V.
2.11 Dimension of main unit: 730mm × 730mm × 730mm (width × high × long)
This machine adopt the visible light illuminant with yarn hairiness projection imaging, then, adopt high-speed camera with computer methods to block hairiness caused by changes in the light into electrical signals, signal processing, a few statistics in mind, display, print by computer.
hairiness setting the length of the high-precision， detection section of the yarn take yarn stably, various parameters of light and electricity can be detected and corrected in the use of computer design requirements automatically, so the of equipment test data is stability and a small error. Equipment can measure the index hairiness of 1-8mm(8 grade) hairiness length, which reflect objectively the distribution of yarn hairiness.