Fiber compressive and flexural property measuring method and device

A technology of compression bending and fiber, applied in the field of compression, tensile property measurement and bending of high-performance fibers or fibrous substances, which can solve the problems of small and difficult fibers.

Inactive Publication Date: 2004-11-17
DONGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The invention solves the measurement of tiny force and realizes the accuracy and synchronous observation of fiber morphology, and at the same time solves the difficulties in the preparation of

Method used

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  • Fiber compressive and flexural property measuring method and device
  • Fiber compressive and flexural property measuring method and device
  • Fiber compressive and flexural property measuring method and device

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Embodiment Construction

[0062] The present invention will be further described below in conjunction with accompanying drawing.

[0063] The present invention is a kind of method that is used for fiber compression bending property measurement:

[0064] ① Obtain a fiber sample through the sample preparation template 43 - fiber needle 41;

[0065] ②In order to reduce the influence of air flow and vibration on the measurement, the entire measurement process of fiber axial compression performance is completed in a measurement chamber 1, and the steps are:

[0066] a. Select the upper clamp 32 for multi-functional compression and its membrane surface simulation material 33 and adjust the clamping method; the lower clamp 5 completes the vertical holding of the fiber needle 41 .

[0067] b. Roughly estimate the center position of the X-axis of the fiber needle 41 through the observation of the magnifying glass 13 mounted on the openable transparent panel at the front of the measurement cavity 1 .

[0068] ...

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PUM

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Abstract

The invention is a method and device for measuring fiber compression flexural performance, refers to the measurement for cotton, fur, silk, hemp and chemical fiber, and other high performance fiber or fiber type material. The invention includes a force-shift measuring mechanism made up of high precision micro force sensor, multifunctional upper grip holder and the subjacent holder which can move in parallel and vertically, it can acquire the head end stress of fiber and fiber axial deformation data and simulate the puncture effect of human skin. The invention uses optical system to realize the synchronization, changes the deformation under pressure of fiber axial into digital image to be processed, acquires the fiber fineness, holding length, flexibility and curvature of each point and shift, and controls the measured parameter through the computer real-time collected data, measures the real-time pressure, flexibility, fiber bending shape and so on deformation curve and relative character parameter through theory model and algorithm software. It especially applies to axial compressing and bending performance measurement of convex fiber with diameter of 5-200ª–m and length of 1-25mm, and the stretching measurement of fiber with length of 0-150mm.

Description

technical field [0001] The invention relates to a measurement method applied to textile comfort performance, fiber characteristics and production quality control, especially suitable for measuring compression, bending and tensile properties of cotton, wool, silk, hemp, chemical fiber and other high-performance fibers or fibrous substances Methods and devices. Background technique [0002] The tactile comfort of textiles is an important factor for wearing comfort, especially for wool or linen fabrics. Consumers often feel itchy or prickly when wearing them, causing physical and psychological discomfort, and changing their purchase and use attitudes. [0003] Due to the complexity of the human body's nerve perception, there are currently three main methods commonly used by enterprises and testing institutions for subjective evaluation. ①Animal electrode stimulation experiment: it uses electrodes or metal needles to stimulate the animal experiment. This method is based on the ...

Claims

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Application Information

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IPC IPC(8): G01N3/08
Inventor 于伟东刘宇清韩露
Owner DONGHUA UNIV
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