Polyester yarn dyeing is expensive or polyester yarn dyeing expensive? Polyester thread is a kind of material that we use more widely in textile production. The wire barrel molding is very good, the fineness, strength and elongation unevenness are very small. Today we will talk about it. How is it dyed? Dyeing should be uniform and uniform using high temperature and high pressure method. Polyester thread manufacturers use high temperature and high pressure method to dye polyester thread, so why use this method?

1. The dye layout of dyed fibers is not the same according to the requirements. This dyeing requires the assistance of external force. The three elements of dyeing external force are: temperature, time, PH value, temperature is one of the conditions, and high temperature is a condition of dyeing.
2. ACE disperse dye is a kind of fuel for dyeing. It has high temperature resistance and can be dyed under high pressure and high temperature.
3. The dyeing speed of polyester on polyester speed increases with the increase of temperature. If the temperature stays at the normal boiling temperature, the dyeing rate is very slow, and the dye adsorption amount is low when the dyeing equilibrium is low, which is difficult to be industrialized. produce. Therefore, only by increasing the pressure, there is a higher dyeing rate and a satisfactory dyeing effect.

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