Determination method of cotton fiber maturity
There are many methods for measuring the maturity of cotton fiber. Commonly used ones include the cavity cell wall contrast method, partial completion instrument method, etc. 1. Middle cavity cell wall comparison method The middle cavity cell wall comparison method is to visually observe the ratio of the middle cavity width and cell wall thickness of cotton fibers through a microscope, and use the average maturity coefficient as an indicator to detect the maturity of cotton fibers. The calculation formula is as follows: According to the needs, you can also calculate the standard deviation of the maturity coefficient, the coefficient of variation and the percentage of immature fibers (the number of fiber roots with a maturity coefficient of 0.75 and below accounts for the percentage of the total number of measured fiber roots). 2. Polarization meter method uses a cotton fiber polarization maturity meter. According to the birefringence properties of cotton fiber, the polarization method is used to measure the polarization intensity after passing through the cotton fiber and the analyzer. Since the complete strength is related to the maturity of cotton fiber, the higher the maturity, the stronger the strength, and the lower the maturity, the weaker the strength. Therefore, the maturity coefficient, maturity ratio, mature fiber percentage and other indicators of the cotton fiber can be obtained through conversion calculation.
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