Anisotropic characterization method for textile material and measuring device thereof

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, and relates to a method for characterizing the anisotropy of fabric materials and a measuring device based on the method. Background technique [0002] Fabrics are woven from yarns in a certain sequence of structures (woven, knitted) or processed from loose fibers in a certain arrangement and reinforcement process (non-woven). Therefore, the fabric appears as an orderly and regular arrangement of yarns on a macroscopic scale, and anisotropy on a microscopic scale. The anisotropy inside the fabric structure is one of the internal mechanisms that affect and determine the physical and mechanical properties of the fabric at the macro and micro levels. However, due to the subtlety and complexity of the fabric's internal structure, there is no effective method for fabric structure The degree and characteristics of anisotropy are objectively characterized, which restricts the development of corre...

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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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