Solution To Leukoplakia When Dyeing Fabric

Experts:

There are many reasons for the formation, such as dyeing the bottoming machine's water points, and reducing the water points of the steambox. If the water points in these places are white, they are produced at the front position, and are lighter in the rear position; the water points are more round than those produced in the small areas where the height difference between the cloth routes is generated or splashed up.

There are also white spots, such as mercerizing machine rolling on the rolling shop with woven bags, resulting in the presence of leukoplakia when dyeing here. If the mercerizing machine rolled and rolled with cotton wool, it would cause dark spots to stain here.

Other causes of leukoplakia include wax spots, alkaline mud, rotten cotton stains and so on.

If the quality of the grey cloth is good, the dyeing rate is high, the dyeing depth is good, and the cloth is smooth and even and plump. The quality of the grey cloth is poor, and the dyed white stars and cloth strips are seriously damaged.

Therefore, it is necessary to strengthen the pre-treatment process when meeting with a lot of grey cotton containing dead cotton and cotton. In order to ensure the safety and reliability of production, the cotton can be treated as clean as possible, and the dead cotton can be thoroughly boiled to improve the dyeing rate and the quality of dyed fabric.

Because of the energy saving of cold pad pretreated fabrics, many enterprises are now using it, but the cold heap removes miscellaneous cotton and pulp, and the cloth is relatively hardened. Therefore, it is easy to fold out when dyeing, and the fabric can easily stain the dirty spots and stains. Therefore, it is necessary to add less viscous auxiliaries in dyeing production, such as anti drift agent, whitening agent NT-2 and so on.

Production of polyester cotton

Or when pure cotton and other fabrics are thick, if the rinsing practice produces poor cleaning effect, the cotton wool will not be cleaned. Some fine cotton wool will stick to the cloth surface, and it will be more difficult to remove after rolling and rolling.

Some leukoplakia staining under the machine is not obvious, but if the reverse hand rubbing cloth face, cotton wool fell down will see a lot of white spots.

There are also tiny cotton wool stuck to cloth, which is difficult to remove. Dyeing machine is difficult to find. However, when it is needed to add wrinkles, rain proofing agents, crosslinking agents and other thick auxiliaries, it will stick down and expose white spots.

Therefore, the white spot caused by cotton wool should not be underestimated. In production of grinding products, attention should be paid to cleaning the hair dryer, fan and brush roller to prevent adhesion on the cloth surface.

If you wash the cotton wool on both sides or wash it unclean, you can brush it again with a brush roller on the grinder, and then dye the cotton wool to clean it.

For fabrics with more cotton and dead cotton, increasing alkali concentration (220g/L) in mercerizing can effectively improve the quality of coloured cloth and reduce white star and cloth face flowers.

After polishing the wool fabric, it is necessary to pay attention to the printing of Aurora, because once aurora is printed, it will form a white spot when it is dyed. Therefore, when the mercerizing soda is washed, the rolling car and the guide cloth stick can not stick with hard objects. It is necessary to make frequent inspections.

Polyester cotton sanding fabric dyed (disperse / reactive dyestuff two bath process) has been encountered and dispersed.

It was found that leukoplakia did not pay enough attention to it until it was found that the white spot was very heavy when it was applied to the dye.

To deal with the nimbll printing of the abrasive cloth, the higher alkali concentration and mercerizing can only be used at the cost of grinding wool cloth to make the cloth feel the same as that of the aurora, so that the dyeing spot caused by aurora will no longer appear.