Test method for bending performance of fabric

A technology of bending performance and test method, applied in the direction of applying stable tension/pressure to test the strength of materials, etc., can solve the problems of inconvenience, expensive equipment, complicated calculation of indicators, etc., and achieve the effect of convenient use and simple operation.

Active Publication Date: 2012-11-21
XIAMEN SINO TECH TESTING TECH
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method considers the nonlinear characteristics, it is inconvenient in actual use due to expensive equipment and cumbersome index calculations.
[0006] In addition, the current fabric bendi

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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  • Test method for bending performance of fabric

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with accompanying drawing.

[0014] Fabric bending property test method of the present invention comprises the following steps:

[0015] Step 1. Cut the fabric to be tested according to a certain thread direction into a rectangular sample of specified size (in this embodiment, the length is 20cm, and the width is 2.5cm). Place it under standard atmospheric conditions for 24h, and draw two marking lines parallel to the edges at a distance of 1 cm from the two edges in the length direction of the sample.

[0016] Step 2. Align the two 2.5 cm long edges of the fabric sample together, and insert 3 pins vertically and equidistantly at the position of the marked line to fix it. At this time, the fabric forms a drop-shaped sample 1 under the action of gravity.

[0017] Step 3. Prepare the remaining 3 drop-shaped samples in the same way as step 2.

[0018] Step 4. A support rod 2 is provided in the middle o...

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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Abstract

The invention relates to a test method for bending performance of a fabric. According to the invention, a fabric to be tested is cut into a preset dimension and is flattened through ironing, then the fabric is bent to form a water-drop shape and put at a prescribed position on a testing table, and an image pickup mechanism located in front of the water-drop shaped fabric is used for shooting the bent fabric; after shooting, a shot image of the water-drop shaped fabric is introduced into AutoCAD image processing software, width, length and an area of the water drop and the ratio of the width of the water drop to the length of the water drop (a bending resistance coefficient) are respectively calculated by using the functions of distance querying and area querying of the software, and bending performance of the fabric is evaluated based on the calculated width, length, area and ratio. Directed at the disadvantages that price of an apparatus is extraordinarily expensive, test results are different from actual mechanical characteristics of a fabric and only one sample can be tested each time in conventional test methods for bending performance of a fabric, the invention provides the novel test methods for bending performance of a fabric, and the method has the advantages of simple operation, convenient usage and capacity of simultaneously testing bending performance of a plurality of samples or a fabric with a plurality of angles.

Description

technical field [0001] The invention belongs to the field of performance testing of textiles and garments, in particular to a method for testing the bending performance of fabrics. Background technique [0002] With the development of the economy, people's requirements for clothing are not just for keeping warm. When purchasing clothing, they generally consider the color, style, size fit and stability of the clothing shape. The style and fit of clothing depend largely on the bending performance of the fabric. The bending performance of the fabric is an important mechanical index that reflects the soft deformation ability of the fabric. It is directly related to the drape, wrinkle resistance and arch resistance of the fabric. Appearance properties such as durability and formability. The test of fabric bending performance can be divided into subjective method and objective method. [0003] Subjective evaluation refers to the use of human hand feeling and subjective judgment ...

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): G01N3/14
Inventor 刘成霞庞星星
Owner XIAMEN SINO TECH TESTING TECH
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