How to clean the high temperature and high pressure overflow dyeing machine
Dec 30, 2021
1. Removal of oligomers, high-temperature and high-pressure dyeing machines are often washed with NaOH or acid sulfite detergent. Carriers can also be added to help dissolve oligomers, and high-temperature-resistant dispersants can inhibit oligomers. The precipitation, rapid cooling and high-temperature drainage can prevent the deposition and agglomeration of oligomers.
2. The removal of alkali scale, calcium salt and fiber debris can be cleaned with hydrochloric acid or sulfuric acid. The effect is very good, but it has a significant impact on stainless steel (corrosion-resistant stainless steel is generally used on the inner wall of the dyeing tank). 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 cylinder cleaning effect.
3. Removal of agglomerated dyes, tars, and greases can be reduced and cleaned by using sulphuric acid powder, liquid caustic soda, emulsifiers, etc. in the traditional tank preservation process.
In addition, when cleaning the dyeing vat, it is necessary to add an appropriate amount of waste cloth in the vat. The high-temperature and high-pressure 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.