Cotton fiber maturity measuring method based on densitometry

Abstract

The invention relates to a method for measuring cotton fiber maturity based on an optical density method. The cotton fiber maturity is tested by using the optical density of the cotton fiber after iodine coloring. When the cotton fiber maturity is high, the more cellulose content, the higher the iodine blue reaction product concentration Higher, the greater the measured optical density, the concentration of liquid A is divided into four grades, namely A, A / 2, A / 4, A / 8, and the best A solution concentration of A / 4 tests the average optical density of cotton fibers, which can Clearly judge whether the cotton fiber is over-ripe, mature or immature. In the invention, under the action of swelling agent, the average optical density of the iodine blue reaction product between colored cotton fiber and iodine can indicate the maturity of cotton fiber. The invention has simple operation, high degree of automation, and is convenient for measurement on a general-purpose microscope.

Description

technical field [0001] The invention relates to the field of textiles, in particular to a method in which the average optical density of a product produced by iodine blue reaction between the colored cotton fiber and iodine under the action of a swelling agent can indicate the maturity of the cotton fiber after the cotton fiber is colored. Background technique [0002] In the process of measuring the maturity of cotton fiber, the main problem is to color the cotton fiber. According to the characteristics that the greater the optical density of the cotton fiber point after coloring, the greater the maturity of the cotton fiber, the maturity of the cotton fiber is judged, and the method of testing the maturity Mainly include: 1) The middle cavity cell wall comparison method is manual measurement, labor-intensive, and the test results are subject to subjective influence; 2) The polarized light method needs to be equipped with a special polarized light microscope for measurement,...

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Problems solved by technology

[0002] In the process of measuring the maturity of cotton fiber, the main problem is to color the cotton fiber. According to the characteristics that the greater the optical density of the cotton fiber point after coloring, the greater the maturity of the cotton fiber, the maturity of the cotton fiber is judged, and the method of testing the maturity Mainly include: 1) The middle cavity cell wall comparison method is manual measurement, labor-intensive, and the test results are subject to subjective influence; 2) The polarized light method needs to be equipped with a special polarized light microscope for measurement, resulting in a waste of instrument utilization; 3 ) sodium hydroxide method, the reagent sodium hydroxide is corrosive to a certain extent and cannot be automatically measured

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