Process Of Burnout Velvet Fabric

The burnt-out process is a printing process in which a corrosive chemical (such as sulfuric acid, ALCL3, etc.) is printed on the surface of a fabric composed of two or more kinds of fibers by drying and treating a certain fiber component to form a pattern. Generally used for velvet fabrics. This pattern or unevenness is orderly or translucent and decorative. It is also possible to add a suitable tolerant dye to the printing paste to color the other component fiber while rotting off one of the fiber components to obtain a color burnt effect.

The process of burnt-printed fabrics should pay attention to the following links: when the fabric enters the printing and drying room, it needs to be flat and not wrinkled, otherwise it will cause uneven carbonization; after carbonization, the fabric will be loosened and ventilated in time, so that the heat is quickly dispersed. Anti-residual acid thermal erosion causes a strong drop and other defects that cannot be repaired; after printing, during the storage process, the residual acid easily absorbs the moisture in the air and extends to each other, resulting in an unclear outline of the flower shape, which is difficult to be carbonized. In addition, therefore, semi-products should not be stored; when printing acid syrup, use a large round knife scraper, scrape double knives, scrape the color paste to ensure its permeability.