LFY-171B Yarn Hairiness Tester

Main purpose
A specialized instrument for measuring the hairiness indicators of various textile yarns or special yarns (such as polytetrafluoroethylene fibers, heat-resistant fibers, aramid fibers, graphite fibers, glass fibers, optical fibers, net wires, etc.).
This instrument is suitable for use in textile factories, research, teaching, foreign trade, commodity inspection, etc., to test the hair length, hair index and distribution of pure and blended yarns of natural fibers and chemical fibers, in order to guide production, improve processes, control quality, develop products, and provide identification means for yarn users.
Yarn hair refers to the fiber ends or fiber loops protruding from the surface of the yarn.
The length, quantity and distribution of yarn hair have a close relationship with the intrinsic quality, appearance quality, feel and usage of the fabric, and are also the main factors affecting quality and productivity in woven, especially shuttleless weaving, and knitting production. Therefore, the yarn hairiness indicator is an important indicator for evaluating yarn quality and an important basis for reflecting the quality of textile processes and the quality of yarn processing components.
Technical Specifications
1. Measured hair length: Simultaneous measurement of hair lengths of 1, 2, 3, 4, 5, 6, 7, 8 mm hair lengths with hair index.
2. Hair length setting accuracy: Less than 0.1 mm.
3. Hair resolution: Less than 0.5 mm.
4. Testing speed: 15m/min ± 5%, 30m/min ± 5%, 60m/min ± 5%.
5. Yarn test fragment length: 1 - 1000m, arbitrarily set (Note: Offline operation is 1 - 100m, arbitrarily set).
6. Continuous testing times: 1 - 10000 times, arbitrarily set. (Note: Offline operation is 1 - 100 times, arbitrarily set).
7. Pre-tension range: 5 - 15cN.
8. Data display method: CRT display screen display and print record.
9. Statistical values: Average hair length, hair index, unevenness rate, range.
10. Parameter adjustment method: Automatic adjustment/manual adjustment.
11. Power supply: AC 220V, power 200W.
12. Host external dimensions: 730mm × 430mm × 430mm (length × width × height) 
Applicable Standards 
FZ/T 01086-2000 Textiles - Method for Measuring Hairiness of Yarn - Projection Counting Method