A kind of fabric material anisotropy characterization method and measuring device

Abstract

The invention relates to an anisotropic characterization method for a textile material and a measuring device thereof. The characterization method comprises: after applying quantitative droplets on the surface of a horizontally placed fabric material, collecting wetting contour images of the upper and lower surfaces of the fabric material synchronously at all times at a set time interval; establishing a polar coordinate system in the wetting contour images, measuring and calculating an index; and representing the anisotropy of the textile material by using the index. In addition, the measuring device includes a pipettor, a sample fixing station, an upper camera, a lower camera and a computer system. The pipettor is used for moving and taking quantitative droplets; the sample fixing station is used for fixing the textile material horizontally; the upper camera and the lower camera are used for collecting wetting contour images of the upper and lower surfaces of the fabric material synchronously at all times at a set time interval; and the computer system is used for measuring and calculating an index. The provided anisotropic characterization method and the measuring method are suitable for representing the anisotropic structural features of sheet-like and pore-structured materials.

Description

Technical field[0001]The invention belongs to the field of textile testing methods, relates to a method for characterizing anisotropy of fabric materials, and also relates to a measuring device based on the characterizing method.Background technique[0002]Fabrics are woven from yarns in a certain organizational structure sequence (weaving, knitting) or loose fibers processed by a certain arrangement and reinforcement process (non-woven). Therefore, the fabric appears as an orderly and regular arrangement of yarns in the macroscopic view, but is anisotropic in the microscopic view. The internal anisotropy of the fabric structure is one of the internal mechanisms that affect and determine the macro and meso physical and mechanical properties of the fabric. However, due to the fineness and complexity of the internal structure of the fabric, there is currently no effective method for the fabric structure. The objective characterization of the degree and characteristics of anisotropy rest...

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Problems solved by technology

[0010] The purpose of the present invention is to solve the problem that the characterization index system of the anisotropic characteristics of the fluid-conducting behavior of the fabric structure in the prior art is not accurate and appropriate, and it is difficult to accurately reflect the anisotropic characteristics of the internal structure of the fabric, and to provide a fabric Material anisotropy characterization method and measurement device

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