Detection method for cross section of fiber

Abstract

The invention relates to a detection method for the cross section of a fiber. The detection method comprises the following steps: 1, horizontally laying the fiber on a film, sticking two metal plates between the fiber and the film, fixing the two metal plates, drying, cooling, carrying down the fiber from the film to obtain an impression picture of the longitudinal cross section of the fiber on the film; and 2, adhering the fiber to the bottom of a container by an adhesive, adding a resin mixture to the container, drying to polymerize the resin mixture, cooling at room temperature, slicing toobtain a slice, adhering the slice to a slide glass, and putting the slide glass in cedar oil for the microscope observation. The detection method of the invention has the advantages of simplicity, no new equipment requirement, and realization of the large scale application. Compared with the direct microscope observation, the method of the invention allows the obtained field depth to be better, complete information of the cross section of the fiber to be once obtained, and influences of dyes of the surface of the fiber to be eliminated, so the discrimination accuracy on the fiber is improved.

Description

technical field [0001] The invention belongs to the field of fiber identification, in particular to a fiber section detection method. Background technique [0002] With the massive development of chemical fibers, there are more and more varieties of new fibers, including special fibers, composite fibers, modified fibers, etc. in addition to conventional fibers. In order to facilitate production management and product analysis, scientific identification of textile fibers is required. Fiber identification includes identification of morphological characteristics and identification of physical and chemical properties. Microscopic observation is commonly used in the identification of morphological characteristics. Using a microscope to observe the longitudinal and cross-sectional shapes of fibers is the basic method for identifying various textile fibers, and is often used to identify fiber categories. Natural fibers each have a special morphology that can be correctly identifi...

AI Technical Summary

Problems solved by technology

However, the diameter of the fiber can generally reach tens of microns, which is greater than the depth of field of the microscope, so it is difficult to obtain all the information of the fiber cross section at one time.

At the same time, due to the limited size of the microscope lens, it is necessary to move and observe a large area of ​​the sample many times, so the reliability of the observation is also greatly reduced

In addition, for fibers such as dyeing, additional information on the surface will seriously affect the performance of the fiber itself