How to identify textile fibers quickly and effectively? This article introduces the identification methods of various types of fibers in detail, come and learn with the editor.
Burning and hand feel visual inspection method
It is a method of identifying fibers by seeing and touching. The principle is a method of qualitatively identifying textile fibers based on the combustion characteristics and appearance, color, luster, length, thickness, strength, elasticity, feel and impurities of various fibers, and relying on human sensory organs. This method can quickly identify various textile raw materials without the aid of instruments, which is extremely practical.
Identification of Colored Cotton and Dyed Cotton
The difference between colored cotton and dyed cotton is mainly based on the color of the cross section of the fiber. If it is colored cotton, the color of the cross section of the fiber will gradually lighten from the center of the section to the edge, while the color of the edge of the fiber slice of the dyed cotton fiber section is the darkest, to the center color. The edge gradually becomes lighter, because during the spinning process, while the inner and outer layers of the fibers are transferred, the individual fibers have a significant squeezing effect on the inner fibers.
Discrimination of ring spinning and rotor spinning
Ring spinning is obtained by spinning on a spinning frame, and the twist direction of spinning is Z twist, so S twist is used for untwisting, and the fibers can be separated.
Air spinning is to form a vortex through air swirling, so the fibers on the surface of the yarn are entangled with each other, and the inner fibers have a certain degree of twist, but because the surface fibers are entangled with each other, no matter whether z twist or S twist is used for untwisting, the fibers cannot be separated. .
Therefore, the two can be distinguished by the above method, and for the same yarn count, the strength of ring spinning is better than that of air spinning, and the hairiness and evenness of air spinning are better than ring spinning.
Discrimination of Ring Spinning Double-strand Yarn and Siro Spinning
Ring spinning is obtained by spinning on a spinning frame, and the twist direction of single yarn spinning is Z twist, and two single yarns are combined with S twist. In Siro spinning, two strands with a certain distance are fed into the spinning drafting zone, and they are twisted into yarn after being drafted separately, and the two yarns are “Z” twisted. After twisting, the twist direction is still ” Z” twist. Therefore, by looking at the merging and twisting directions of the yarns, the two can be distinguished.
