What should we pay attention to in ribbon dyeing?

1. The factors of the original blank of the ribbon should first pay attention to whether the yarn used is the same batch, because different batches of yarn contain different "oil" conditions, such as blending, which will become a factor of color in the dyeing process; secondly, whether the original blank has been pre-treated, after refining, the dyeing effect of the original blank is very good, because the "oil" on the treated yarn is removed. The dye can be dyed directly with the fiber without protection.

2. The pressure of cylinders at both ends of dyeing trough (or rolling car, dyeing cylinder, dyeing machine) roll is uniform. The rolling mill of continuous dyeing machine for weaving strip usually uses pneumatic pressure. There is one cylinder on each side of the roll. When the rolling mill runs for a period of time, due to the effect of moisture in compressed air, the pressure at both ends of the cylinder will be different, resulting in uneven liquid rate of billet strip and color difference between edges and middle. In addition, the pressure on both ends of the rolls of the rolling mill results in a certain deflection, resulting in inconsistency of the rolling allowance in the edge and color difference in the left, middle and right sides.

3. In the production of dyeing trough rolls, the pressure, concentricity and hardness should be controlled above 0.2 MPa in order to minimize the influence of roll pressure on the color difference between left, middle and right. In the production process, because of the wear and tear of the rolls, the rolls are required to be calibrated and repaired regularly, otherwise, the discrepancy of the roll residue due to the discrepancy of the rolls will easily lead to the discrepancy of the pattern. Rollers with different hardness have different rolling allowances. Too hard may lead to insufficient absorption of dyes. Too soft may lead to excessive rolling allowance, resulting in a large amount of migration of dyes and color. How much hardness should be determined by strips.

Changle Reet Trading Co., Ltd is a ribbon manufacturer from 2003, main products cover satin ribbon, grosgrain ribbon and Nylon organza ribbon, elastics, artifical flowers, ribbon bow, personalized ribbon,metallic ribbon, scotch ribbon, gingham ribbon, tartain ribbon, national ribbons and stripes.

Our dyeing dry rub fastness can reach 4.4-5 degree. It is safe to white boxes.