Fiber compressive and flexural property measuring method and device

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 ...

AI Technical Summary

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 fiber needles due to the small size of fibers and effective fiber needles, as well as the problems of its combination technology and computer sampling, calculation and analysis software, etc.

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