What is the principle and purpose of singeing process
What is the principle and purpose of singeing process? After the short fluff on the outside of the yarn is burned off, the fabric will become smooth and smooth, which not only improves the quality of the fabric, but also improves the stain resistance of the fabric. The singeing reduces the degree of pilling of the fabric, which is One of the indispensable steps in pre-treatment.
It can be seen from the experiment that the singeing effect of the fabric has an impact on the dyeing quality, and the singeing strips will be obviously displayed in the dyeing process. Therefore, it is necessary to perform a uniform singeing treatment on the fabric in the singeing process. Critical.
1. Principle of singeing: Singeing is to make the fabric quickly pass through the flame of the singeing machine or rub the red-hot metal surface in an open-width state to remove the The process of producing fluff on the surface of fabrics and obtaining a smooth surface. At this time, the fluff on the cloth surface is close to the flame and is loose, so it can heat up and burn quickly. The fabric itself is relatively tight, thick, and far away from the flame, so it heats up slowly. It has already left the flame or red-hot metal surface before the temperature reaches the ignition point. Therefore, the principle of different heating rates between the cloth body and the fluff is used to achieve It only burns away the fluff on the surface of the fabric without damaging the purpose of the fabric.
2. The purpose of singeing: When fibers are rubbed during spinning, doubling and weaving, many short and loose fibers will be exposed on the surface of the yarn, and a layer of short fibers will stand on the surface of the fabric. fiber. This layer of fluff not only affects the smoothness of the fabric, but is also prone to dust during the production process, and can cause various defects during the printing and dyeing process. Therefore, except for some special varieties, cotton fabrics generally undergo singeing treatment.
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Singeing process Principle of singeing process Purpose of singeing process
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