Textile Testing with a High Volume Instrument (HVI)
For cotton fiber testing, there are 6-items of cotton fiber properties as below, which should be checked normally:
1. Length
2. Maturity (Micronaire value)
3. Moisture
4. Strength
5. trash
6. Color
HVI can do all these 6-test in one machine, and normal testing use separate testing machines to check each property.
After check these 6 properties of cotton fiber, then can classify cotton to different grade, which is very important to its price. Most famous HVI is from USTER.