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Fractional Gradient Wetting and Raffinate Combined Labeled Shearing Method for Fabric Pore Size Determination

A fractional gradient wetting and labeling technique, applied in the analysis of suspensions and porous materials, measuring devices, permeability/surface area analysis, etc. The effect of fabrics, reducing dimensional errors, improving test accuracy and data reproducibility

Inactive Publication Date: 2011-12-07
WUYI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The liquid sticking to the scissors has not been considered in the previous fraction cutting operation. Since the liquid content of the statistical integration strips in each section is very small, the loss of this part of the residual liquid can cause a large error in the calculation of the pore volume. , especially for the fractions with a higher position in the cloth sample, due to the small liquid content, this part of the residual liquid has a greater impact and needs to be combined for calculation
In addition, the previously disclosed technology does not calculate the deviation of the calculated aperture due to the size deviation of each fraction clipping. The present invention discloses a fraction size correction method, which corrects each fraction to the same area for calculation, eliminating error in this area

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Fractional Gradient Wetting and Raffinate Combined Labeled Shearing Method for Fabric Pore Size Determination
  • Fractional Gradient Wetting and Raffinate Combined Labeled Shearing Method for Fabric Pore Size Determination
  • Fractional Gradient Wetting and Raffinate Combined Labeled Shearing Method for Fabric Pore Size Determination

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The gray cloth of 30 pure cotton woven fabrics with a longitude and latitude of 68×68 is used as a sample cloth, and three pieces are used for each group of tests, and the average value is obtained to obtain the final data. The greige was desized and air-dried using a liquor ratio of 1:30. The desizing formula is shown in Table 1.

[0027] Table 1

[0028]

[0029] The test temperature is 25°C±1°C, and the relative humidity is 65%±3% of the standard atmospheric pressure.

[0030] Experimental procedure

[0031] 1) Prepare three cloth strips with neat edges of 3cm wide and 20cm long.

[0032] 2) Hang the disassembled dry cloth sample in the device, clamp it with tension clips, and soak one end of the cloth in distilled water. Place in a constant temperature and humidity room for 24 hours.

[0033] 3) After the wicking is balanced, when the moisture absorption height of the cloth strip is at the equilibrium value, remove the wet cloth strip, and then draw obvious...

Embodiment 2

[0046] All methods are the same as in Example 1, except that the sample cloth width is 1.5cm.

[0047] The experimental data are as follows

[0048] Among the three cloth samples, the average pore diameter of cloth sample 1 is 234 μm, that of cloth sample 2 is 238 μm, and that of cloth sample 3 is 242 μm. The average pore diameter of the cloth sample is 238 μm±2.7 μm. The relative deviation is 1.1%.

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Abstract

The invention discloses a fraction gradient soaking and raffinate merging indication scissoring method for fabric aperture determination, and relates to a method which belongs to the technical field of aperture dimension determination, and provides an accurate combination method aiming at a lining indication step and a fraction scissoring step in capillary aperture distribution determination of a flexible porous material. A fraction gradient soaking indication method is employed to ensure that a cloth sample maintains a same soaking state during the lining indication and cloth sample scissoring, so as to realize consistent tension force, least deformation and the most accurate lining indication. A raffinate merging method is employed to collect and weigh raffinate on a holder and a scissor together during the scissoring process, so as to reduce an liquid content weighing error. A fraction dimension correcting method is employed to correct a real weight of each scissored fraction into a standard weight, so as to eliminate an error caused by different dimensions of the scissored fractions. The three technologies are combined to substantially increase data precision and reappearance of a weight grading method for determining aperture distribution of the flexible material.

Description

technical field [0001] The invention relates to a method for measuring capillary pore size distribution of a flexible porous system, in particular to a method for marking and clipping fractions in a quality classification method. Background technique [0002] Wettability of fabrics is critical for wet processing such as scouring, sizing, desizing, mercerizing, dyeing, coating and finishing, as well as thermo-moist comfort. In view of the complexity of the fabric structure, a large number of current methods for measuring the wettability of fabrics are measured on a larger scale than the capillary pores, mainly including: capillary wicking method, droplet method, sedimentation method, etc. The direct correlation with the capillary structure restricts the in-depth study of the nature of fabric wetting behavior and further quantitative determination. The corresponding various simplified calculation methods are also difficult to quantitatively characterize the differences in wet...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): G01N15/08G01N5/04
Inventor 狄剑锋杜文琴齐宏进
Owner WUYI UNIV
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