How to clean the dyeing machine

Long-term use of the dyeing machine will accumulate dirt on the inner wall of the tank, especially in the printing and dyeing industry where the control of sewage discharge is important. In order to save water, many printing and dyeing factories have formed a lot of siltation of dyes, oligomers, grease, fiber debris and other substances. At the bottom of the tank. The consequence is that the dyeing vat will rise and cool down slightly, and there will be flying spots during dyeing. In severe cases, the dyeing equipment will be blocked and the dyeing temperature will not rise. Depending on the purpose of the overflow tank, the main components of the accumulation in the tank are also different, mainly dust, grease, agglomerated dyes, dispersants, oligomers, calcium salts, etc., and different methods are used for cleaning according to different components.

1. Removal of oligomers. High temperature and high pressure dyeing machines often use NaOH or acid sulfite detergent to wash the tank. It can also participate in the carrier to help dissolve the oligomer, and the high temperature resistant dispersant can suppress the oligomer. The sedimentation, rapid cooling and high temperature drainage can avoid the accumulation and agglomeration of oligomers.

2. The removal of alkali scale, calcium salt and fiber debris can be cleaned with hydrochloric acid or sulfuric acid. It has a good effect, but it has a significant impact on stainless steel (corrosion-resistant stainless steel is used throughout the inner wall of the dyeing tank). The gloss of the chrome plating layer disappears completely and is very corrosive Big. It is recommended to use Transchem's TF-105F cylinder cleaning agent, which does not contain strong acid, is not corrosive to the cylinder body, and has an excellent cleaning effect.

3. For the removal of agglomerated dyes, tars, and greases, traditional vat preservation techniques can be used for restoration and cleaning with sulphuric acid powder, liquid caustic soda, and emulsifiers.

In addition, when cleaning the dyeing vat, an appropriate amount of waste cloth must be added to the vat. The dyeing machine ensures that the high-speed water sprayed from the nozzle is washed through the waste cloth to the "dead corner" that is difficult to reach in normal circulation.