EnglishJersey printed fabric, as the name suggests, is printed on knitted fabrics. Color spots refer to irregular block-shaped strips on dyed and printed materials, square and other color stains (spots) have double-sided and single-sided, hard blocks, coal tar-like, different hues or the same hue and so on. So often encounter knitted printed fabrics to produce color spots, then what is the reason?
cause:
1. The printed fabric is not washed with clean water after washing with oil stains;
2. Desizing and degreasing are not clean;
3. The layout of the printing embryo is wet;
4. The dyeing machine is not clean;
5. Improper adjustment of PH value;
6. Poor diffusion;
7. Improper combination of dyes;
8. After scouring, the desizing of the product is not clean, the pH value of the cloth surface is not too alkaline, the water is not clean, and the water is stored for a long time;
9. The dye dissolution temperature is too high.
Identification method:
1. The dark stains of the printing hue, which appear on the front and back, are caused by the poor scouring of the embryonic cloth;
2. Different hues or colors are similar, and the color stains on one side are stained when the cloth is dragged without cleaning in the dyeing machine;
3. Square-shaped stains are distributed in irregular positions
4. Horizontal color stains with a certain distance in the horizontal direction;
5. The color stain of hard lump tar on the printed fabric is caused by the high dissolving temperature of the dye, poor dispersion of the dye, improper PH value of dyeing and dissolving, and unclean desizing and degreasing of the fabric. .
For more information, please refer to: Concord Custom Wholesale Printed Fabric Factory
