Mass-classification-based device and method for measuring yarn capillary pore radius distribution

Abstract

The invention relates to a mass-classification-based device and method for measuring yarn capillary pore radius distribution. The distortion caused by pressurization or vacuumization in the size measurement on flexible yarn pores by a conventional capillary measurement method can be avoided; aiming at the flexibility and thin and complex structure of the yarn, a framework suspending device and a multi-template combination cutting plate are designed to carry out bonding, cutting and measurement on each section of liquid-containing yarn, hundreds of yarn can be measured at one time, and error is reduced. According to the invention, an equation about the relationship between height and pore radius is set up according to capillary pressure and weight balance principle, liquid-containing amount difference subtraction is carried out on yarn classification of adjacent heights from low to high sequentially when wicking is balanced, and the liquid-containing amount of the corresponding size pore in the yarn classification with lower height is obtained; data is calculated according to the disclosed percentage formula of the yarn classification liquid-containing amount, and a pore radius distribution column diagram, a curve diagram and a cumulative diagram are drawn; and the method and the device are simple to operate, have high accuracy and good data repeatability, and the problem of quantitative measurement of yarn pore radius distribution is solved.

Description

technical field [0001] The invention relates to a method for measuring the capillary diameter distribution of yarns. Background technique [0002] The wettability of fabrics is crucial for both their wet processing and thermo-moisture comfort. As a collection of capillary pores that are open at both ends and partially ordered, the wettability of fabrics is usually closely related to its capillary distribution, because whether it is wet processing or wearing, the transportation of water, organic solvents and sweat is mainly in the It is carried out in capillary pores, and the processes involved in adsorption, diffusion, permeation, evaporation, etc. all depend on the structure of capillary pores (shape, roughness, size, distribution, etc.). In view of the complexity of the fabric structure, the methods for measuring the wettability of fabrics have been measured on a larger scale than the capillary pores for a long time, mainly including: capillary wicking method, droplet met...

AI Technical Summary

Problems solved by technology

At home and abroad, the pore radius of the fabric is calculated by the formula according to the geometric structure parameters of the fabric, or simplified to the average pore size and the maximum and minimum pore size. Control of properties such as dyeing, finishing process and even heat and humidity comfort of fabrics

Qi Hongjin and others have applied for the invention patent of the pore size distribution test method along the fabric plane based on the quality classification method (application number: 200910194353.9), but so far there has been no report on the measurement of the distribution of the pores along the yarn axis.

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