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Dry-wet-rubbing-fastness-improver
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oth with uniform yarn rely and smooth surface. When pretreatment should be used, high-efficiency pretreatment agent needs to be used.
3. Soft water or deionized normal water should be used if you can , for dyeing water, which can reduce the influence of calcium and magnesium plasma in the water on dyeing.
Fourth, the selection of mending agent
The high-efficiency fixing agent should be able to "bridging" between the dye and also the fiber to form a new compound, and when it reacts considering the dye, it can react and cross-link with all the cellulose fiber, so the fact that dye fiber can possibly be closely and firmly relevant together and prevent the dye in the fiber falls off avoiding the decrease of coloring fastness. The fixation effect is that the fixation agent interacts when using the fiber in the transmitter as well as the cationic group then forms a salt with the dye anion to enjoy the role of fixation.
A good formaldehyde-free fixing agent can enhance the wet rubbing fastness with reactive dye-dyed fabrics coming from 0. 5 to A SINGLE level. The properties of the fixing agent are: a polymer compound that can form a film, polyurethane or maybe silicone with -OH, -NH2, and a cross-linking agent to cross-link the polymer to make it durable and rapid film formation It doesn't change color, yellowing, and will not reduce the fastness to light. It can create the dyed material really feel smooth, reduce the outside friction coefficient, and maintain the breathability and moisture permeability with the dyed material.
5. Special auxiliaries can reduce how much dyes used in finishing to have a deep color effect, and the wet rubbing fastness is likewise improved.
6. The pH value of the fabric after dyeing.
How much alkali used in that dyeing of dark and also dense cotton fabrics is usually relatively high. After dyeing, the actual washing, soaping and neutralization and de-alkalization need to be strengthened. The fabric shouldn't be carried with alkali, otherwise it will cause the dye for being hydrolyzed after dyeing plus the wet rubbing fastness could decrease. Usually the pH value with the cloth surface is managed at 6. 5-7. 5, not more than 9 or below 3.
Seven, improve the characteristics belonging to the fabric surface after dyeing. Fabric finishing may be treated with biological enzyme polishing, for example.,the surface finish with the fabric is increased, and the wet rubbing fastness can also be improved.
8. The floating color after dyeing with reactive dyes is difficult to get rid of. After soaping, an appropriate color stripping agent can often remove the floating color and improve the wet rubbing fastness.
https://www.jervay.com/Dry-wet-rubbing-fastness-improver-pl3111333.html Wet rubbing fastness improver 201911ld
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