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Device and method for detecting frictional performance between fabric and skin

A friction performance and friction device technology, applied in the field of friction performance testing of textile fabrics, can solve the problems of no clothes and skin wearing conditions, difficulty in imitating wearing conditions, small sample size, etc. effect of breadth

Inactive Publication Date: 2011-09-07
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, looking at the research results of more than 30 years at home and abroad, it is found that there are still no instruments and devices and universally applicable test methods that can simulate the actual wearing of clothes and skin, and are specially used to test the friction performance between fabrics and skin, especially for There are few studies on the violent interaction between fabric and skin under wet conditions
Existing test devices are all tested on skin testers or material friction and wear testing machines. The size of the test samples is small, and it is difficult to imitate the actual wearing conditions, especially the friction of curved surfaces.

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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  • Device and method for detecting frictional performance between fabric and skin
  • Device and method for detecting frictional performance between fabric and skin
  • Device and method for detecting frictional performance between fabric and skin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] The wrapping angle between the fabric and the skin in the test device is θ=5π / 6, the descending speed of the rest is 600mm / min, and the pre-tension T=200cN applied by the tension clamp. The volunteer who participated in the experiment was a 23-year-old male with a height of 1.70m and a weight of 70kg. The skin was in good health. The test site was the inner skin of the middle part of the forearm of the volunteer. The sample size is 80 S ×80 S / 898×800, 98g / m 2 The pure cotton elastic Zhigong is used for the friction test along the warp direction, and the length and width of the sample are 500mm×100mm.

[0068] First measure the complete drying time t of the fabric m , Weigh the samples that have been dried or conditioned in a constant temperature room for 24 hours, soaked in water at 25°C, and lightly kneaded at the initial stage of infiltration to facilitate rapid infiltration, and taken out after 30 minutes in a windless laboratory (Temperature 20°C±3°C, relative ...

Embodiment 2

[0074] The wrapping angle between the fabric and the skin in the test device is θ=π, the descending speed of the rest is 600mm / min, and the pre-tension T=140cN applied by the tension clamp. The volunteer who participated in the experiment was a 25-year-old female, 1.68m in height, 60kg in weight, with good skin health, and the test site was the inner skin of the middle part of the forearm of the volunteer. The sample specification is 90D×120D / 460×270, 80g / m 2 The polyester chiffon fabric is subjected to the friction test along the warp direction, and the length × width of the sample is 500mm × 80mm.

[0075] First measure the complete drying time t of the fabric m 30min, the test method is the same as in Example 1, and 30min is divided into 5 time zones and 6 time nodes, which are respectively 0min, 6min, 12min, 18min, 24min and 30min, that is, the relative open time T is successively 0, 0.2, 0.4, 0.6, 0.8 and 1.

[0076] Soak 6 samples of the same variety and size (numbere...

Embodiment 3

[0081] The wrapping angle between the fabric and the skin in the test device is θ=2π / 3, the descending speed of the rest is 400mm / min, and the pre-tension T=280cN applied by the tension clamp. The volunteer who participated in the experiment was a 22-year-old female with a height of 1.65m and a weight of 56kg. The skin was in good health. The test site was the inner skin of the middle part of the forearm of the volunteer. The sample specification is JC80 S ×JC80 S / 670×412, 73g / m 2 The poplin fabric is subjected to the friction test along the warp direction, and the length and width of the sample are 500mm×120mm.

[0082] First measure the complete drying time t of the fabric m 115min, the test method is the same as in Example 1, and 115min is divided into 5 time zones and 6 time nodes, which are respectively 0min, 23min, 46min, 69min, 92min and 115min, that is, the relative open time T is successively 0, 0.2, 0.4, 0.6, 0.8 and 1.

[0083] Soak 6 samples of the same varie...

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 device and a method for detecting frictional performance between a fabric and skin. The detection device comprises a friction device, a signal acquisition device and a mechanism driving and controlling device, wherein the friction device comprises a friction bracket and a friction base; a support is arranged on two sides of the friction bracket respectively; a clamp is arranged on the support; a guide roller is arranged in front of the support; a tension clamp is arranged below the guide roller; and a clamping device is arranged above the support. The detection method comprises the following steps of: (1) infiltrating a fabric sample; (2) airing the infiltrated fabric sample for different time to obtain a fabric sample with different wetting degrees; (3) calibrating the wetting degree of the fabric sample at various points of time through a relative airing time method; (4) performing a friction test on the fabric sample by utilizing the device; and (5) formulating different friction indexes according to characteristics of various friction curves. The device and the method can quantitatively measure the frictional performance between the fabric and the skin under dry condition and various wet conditions.

Description

technical field [0001] The invention relates to the field of testing the friction performance of textile fabrics, in particular to a device and method for testing the friction performance between fabric and skin. Background technique [0002] Friction occurs when the fabric and the skin slide relative to each other or have a tendency to slide. The magnitude of the friction is not only related to the type of fabric, but also to the wetting state of the fabric, positive pressure, etc. Generally, the friction force in a wet state is much greater than that in a dry state. force. [0003] The human body contains a lot of water. When the temperature of the external environment rises or the amount of physical activity increases, and the human body urgently needs to dissipate heat, it begins to sweat. In most cases of sweating, sweat is often retained on the skin surface, and the sweat that adheres to the skin surface will be absorbed or dripped by the clothing. The sharp increase...

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): G01N19/04G01N19/00
Inventor 王府梅王旭
Owner DONGHUA UNIV
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