Precautions for dyeing and coloring of dyeing machine

Adding color is a common thing in dyeing factories, but the amount of dye used in adding color is often very small. It is equivalent to dyeing a light color once. And because there is a large amount of saline and alkali in the original vat of the dyeing machine, it will increase the coloring rate, so it is more important to control the feeding speed. In the case of satisfying the depth of color, we can remove part of the dyeing solution and add water to reduce the concentration of salt and alkali. . Sometimes it is too risky to use reactive dyes to add color in the case of little difference in shade, and disperse dyes can be selected for fine-tuning. Because disperse dyes color slowly, it will only cause less staining on cotton fabrics. Therefore, in the case of slightly different shades and not bright colors, disperse dyes can be used for fine-tuning.