The Difference Between Printing And Dyeing

The difference between printing and dyeing is in the following aspects.

1.

And dyeing forehead operation, dyeing processing is used in dye aqueous solution, generally do not add thickening paste or only add less paste; and printing is used for color paste, color paste is added in the dye solution or dispersion thickener paste thickened paste with a certain viscosity of the slurry, to prevent printing due to Chinese infiltration, resulting in unclear shape, the shape is true, and printing after drying the dye's swimming.

2. Dyeing time

In general, the problem of dyestuff dissolution is not too large, usually without the aid of solvents.

The concentration of chemical footprint is much higher than that in general. The value contains a lot of paste, resulting in difficulty in dyestuff dissolution. Therefore, the printing paste Chinese medicine plus auxiliary solvent, such as urea, dissolves salt B and so on.

3, when dyeing, the fabric has a longer time in the natural desire, so that the dye can be fully diffused.

Infiltrate

To complete the dyeing process.

When printing, dyestuff is not easy to diffuse and permeate in the pulp, so after printing, it should be treated by post treatment, such as air steaming or baking, to improve the dye diffusion rate and help dyestuff dye the fiber.