Use of Dextrin in Printing Process

(I) Sizing agent

    Stained fabrics When sizing is required, yellow dextrin (or white dextrin) is sometimes used as a sizing agent. The dextrin gives the fabric a thickening and firming effect during finishing. Although it is not as effective as starch, it has a very high adhesive force. All the fabrics that have been dextrinized often have a strong handle, like linen, unlike starch. Slightly lagging.

(B) for printing paste

The pulp made from crumb white dextrin is white and has good permeability. This property is used in printing and dyeing, and if necessary, it can be used as a whitening or whitening printing paste to improve the whiteness of white flowers.

1. White paste for burnt polyester/cotton print acid white paste

The principle of burnt-dyed polyester-cotton printing project is to use inorganic acids to print on polyester filament cores and on cotton-wrapped fabrics. After baking, the cotton fibers of the printing part are coked by acid attack, and then washed. The coke residue is removed, while the polyester filaments are not attacked by acid and still maintain their original luster and form a unique convex effect. The sour white pulp consists of white paste seminal paste, emulsified pulp A and sulfuric acid.

2. Yellow dextrin can be used as printing paste instead of printing and dyeing

Good permeability, uniform printing, acid and alkali resistant, easy to dissolve in water, easy to wash after printing. Because of its reducibility, it is suitable for vat dye printing to help restore vat dyes. Because of its good permeability, it is necessary to properly control the humidity of the steamer when it is steamed so as to avoid the phenomenon of seepage of the edge of the pattern after the curtain has been turned on.