Identification of polyester-cotton yarn and polyester-viscose yarn
Untwist the two yarns, and then look at the length of the single fiber; whether the polyester cotton yarn is polyester staple fiber or cotton fiber is usually cotton type, the cut length of polyester is 38mm, and cotton contains long-staple cotton. The length is 23mm~45mm. If the polyester-viscose yarn is cotton-type yarn, its cut length is 38mm, medium-long yarn has a cut-off length of 51mm~76mm, and wool-type yarn has a cut-off length of 76mm~114mm. We can distinguish them by using the length of the fiber.
The identification of three kinds of Tencel
TSG100 is a kind of Tencel that can be fibrillated. If processed into finished TSG100 Tencel yarn, there will be very fine fluff on the surface.
TSA100 is a kind of Tencel that cannot be fibrillated. If processed into a finished TSA100 Tencel yarn, there is no fluff on the surface.
TSLF100 is a kind of Tencel that can be fibrillated and cannot be fibrillated. If the surface of the TSLF100 Tencel yarn is processed into a finished product, there will be hairiness on the surface, and many of the hairiness will be unevenly distributed in the whole yarn.
Identification of Polyester and Nylon
1. Whether the polyester is cationic modified polyester, whether it is drawn yarn or low-stretch yarn, the flame color when burning is light red with aromatic odor.
2. Nylon, whether it is drawn yarn or low-stretch yarn, has an odor when burning. The flame color of white or light-colored nylon is light blue when burning, and the flame color of black or dark-colored nylon is light yellow when burning.
How to distinguish shiny silk and diamond silk
The luster of the shiny silk is almost the same as that of the diamond silk, and the surface of the silk is very shiny.
In spinning, the content of TiO2 matting agent added in shiny filament and diamond filament is different, and diamond filament has almost no TiO2 matting agent, so the spinnability is poor, so there are few single fibers in the silk thread, so it is necessary to distinguish between two The person is to count the number of single fibers to identify them.
