Method for rapidly identifying fibers

Abstract

The invention discloses a method for rapidly identifying fibers, which comprises the following steps of: 1), performing tensile test of unknown fibers, wherein the elastic fibers comprise spandex and rubber threads, while the inelastic fibers comprise nylon, vinylon, acetate fibers, acrylic fibers, copper ammonia fibers, viscose, polyester, polypropylene fibers and chloride fibers; 2), identifying the elastic fibers with KS3, wherein the dissolved fibers are spandex, and the insoluble fibers are the rubber threads; 3), identifying the inelastic fibers in KS1, wherein the fibers dissolved in KS1 are nylon, vinylon, acetate fibers and acrylic fibers, and the fibers which are not dissolved in KS1 are copper ammonia fibers, viscose, polyesters, polypropylene fibers and chloride fibers; 4), identifying the KS1 soluble fibers with KS2, wherein the dissolved fibers are nylon and vinylon, while the insoluble fibers are acetate fibers and acrylic fibers; identifying the KS2 insoluble fibers with KS4, wherein the dissolved fibers are nylon and the insoluble fibers are vinylon; and identifying the KS2 insoluble fibers with KS5, wherein the dissolved fibers are acetate fibers, while the insoluble fibers are acrylic fibers; and 5), identifying the fibers which cannot be dissolved in KS1 with KS3, wherein the dissolved fibers are copper ammonia fibers and viscose, polyesters, while the insoluble fibers are polypropylene fibers and chloride fibers; identifying the fibers dissolved in KS3 with KS5, wherein the dissolved fibers are copper ammonia fibers or viscose, while the insoluble fibers are polyester; and identifying the fibers which cannot be dissolved in KS3 with KS6, wherein the fibers floating on the liquid surface are polypropylene fiber, and the settle fibers are chloride fibers.

Description

technical field [0001] The invention relates to a method for rapid fiber identification and belongs to the field of textile fiber inspection and identification. Background technique [0002] Fiber identification is the basis of textile fiber inspection, and many inspections are based on fiber identification. At present, the main methods of fiber identification are: [0003] Combustion method: According to the state of the fiber when it is close to the flame, when it is in contact with the flame and when it leaves the flame, as well as the odor produced during combustion and the characteristics of the residue after combustion, the fiber category is identified. For example, cotton fiber does not melt or shrink when it is close to the flame. It burns immediately when it touches the flame, and burns rapidly when it leaves the flame. [0004] Microscopy: Use a microscope to observe the longitudinal and cross-sectional morphology of the unknown fiber, and compare the standard ph...

AI Technical Summary

Problems solved by technology

[0009] To sum up, some of the above methods are complicated to operate, such as the density gradient method and the dissolution method, and some methods such as the combustion method are simple to operate but are not suitable for judgment, and judgment requires more experience accumulation

At present, the microscope method is the most widely used method. The fiber is identified according to the microscopic shape of the fiber. The microscopic morphological characteristics of the natural fiber are obvious, and it is easier to judge with the microscope. However, with the development of the fiber, the proportion of the synthetic fiber is increasing. Large, the shape of many synthetic fibers is difficult to distinguish under the microscope, and it is necessary to judge with the help of chemical reagents according to the chemical properties of different fibers

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