Fabric multi-directional wrinkle recovery testing device and method
A wrinkle recovery and testing device technology, which is applied in measuring devices, material analysis through optical means, instruments, etc., can solve the problems that are not scientific and rational, and cannot characterize the wrinkle recovery of fabrics, etc., and achieve repeatability Good, cost-saving effect
Active Publication Date: 2016-03-02
TONGXIANG JINGFENG TEXTILE
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Problems solved by technology
[0003] There are certain problems in these two methods: the wrinkles of the fabric have obvious anisotropy, and the wrinkle recovery angle method only produces wrinkles in a single direction, and only the wrinkle recovery angles in the warp and weft directions of the fabric are used to characterize the wrinkle resistance of the entire fabric nature, obviously not scientific and rational
Obviously, neither of these two methods can characterize the comprehensive crease recovery of the fabric in all directions.
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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[0012] The technical solution of the present invention will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.
[0013] The materials required for the multi-directional fabric wrinkling device include small balls, rubber bands for binding, and hollow tubes with a slightly larger diameter than the small balls. The acquisition device of the fabric wrinkle image is a digital camera or a scanner, and the processing device of the fabric wrinkle image is a computer, wherein the small ball in this embodiment is a sphere with a diameter of 1.5 cm.
[0014] Fabric crease resistance testing method of the present invention comprises the following steps:
[0015] (1) After ironing and flattening the fabric 1 to be tested, cut it into a specified size (the size of the sample in this example is 15×15cm); and mark the weft mark 2 and the warp mark 3;
[0016] (2) Place the cut fabric 1 to be tested on the upper end of the hollo...
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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The invention relates to a test device and method of multi-directional wrinkle recovery performance of fabric. The device comprises a multi-directional fabric wrinkling device and a fabric wrinkling image obtaining and processing device. The method comprises the following steps: enabling the fabric to produce multi-directional wrinkles through a banding method, obtaining a fabric wrinkling image through a scanner or a digital camera, and then firstly pre-processing the obtained fabric wrinkling image through an image processing technology by using a computer, wherein the pre-processing step comprises graying color image, performing enhancement processing on contrast and denoising; and performing wavelet decomposition on the pre-processed fabric wrinkling image by using the wavelet analysis technology, and extracting the decomposed horizontal detail standard deviation, vertical detail standard deviation and opposite angle detail standard deviation at each layer, wherein the total standard deviation of the directions is taken as an evaluation index, the greater the total standard deviation of the fabric is, the worse the anti-wrinkle performance is. The index reflecting the anti-wrinkle performance of the fabric is obtained through the image processing, and the device and method have the advantages of being accurate and convenient, good in repeatability, time-saving and labor-saving and cost-saving.
Description
technical field [0001] The invention belongs to the field of textile and garment performance testing, in particular to a fabric multi-directional wrinkle recovery testing device and method. Background technique [0002] Wrinkle resistance refers to the ability of fabrics to resist wrinkle deformation caused by external force. Wrinkle resistance usually refers to the degree of recovery of creases under the action of external force, also known as wrinkle (crease) recovery. The quality of wrinkle recovery is directly related to the appearance and flatness of the fabric, so it is very important to accurately test and objectively evaluate it. Common test methods include wrinkle recovery angle method and wring method. The former is to measure the recovery angle after the fabric is folded and pressed; the latter is to rotate the upper and lower sides of the fabric for a circle to compress, and then evaluate the wrinkle level after the pressure is removed. [0003] There are cert...
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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IPC IPC(8): G01N21/84
Inventor 刘成霞
Owner TONGXIANG JINGFENG TEXTILE