The advantages of the new printing and dyeing factory special defoamer

Feb 22, 2024

When applying defoamer, I was not clear about the amount of defoamer used and its characteristics, so when I did not make a few tanks, I found that there was a curved oily substance sticking to the surface of the textile when the blank fabric came out of the tank. When I first encountered this kind of problem, I couldn't tell where so many oils came from, because the oils (which colours are dyed, i.e., which colours are dyed with the oils) were attached to the surface of the textile and were very bright, and when I touched it with my hand, it penetrated into the textile, and when I took it, it was marked with dirt and could not be removed. After various searches for the cause, it was analysed that the oil was caused by the demulsification of defoamer. If the textile is stained by this waste, there is no way to remove it.

After several tests, it is learnt that the more defoamer is used, the more serious the problem is. This was more pronounced for chemical fibre textiles such as polyester/cotton and polyester (whereas machines and equipment without defoamer did not exhibit this behaviour). Together, it is also noted that the water body is hard, Ca2+, Mg2+, Fe2+ and other metal materials positive ions are more, when the antifoam agent breaks the emulsion, the result will be caused by the separation of oil, resulting in the separation of oil floating in the dyeing solution, and the positive ions of the metal materials or the residue in the chemical fibres and modifiers, dyeing agents caused by the scum and stains are tightly combined, resulting in curved pigmented spots, graphics, and oil stains adhered to the textile fabrics. Therefore, the removal of foam together with many unfavourable conditions and adverse effects, and even lead to the damage of economic development.


The use of water treatment defoamer for this situation, the new type of printing and dyeing plant special type defoamer to deal with the difficulties. It has given characteristics:

1, it breaks the emulsion faster, inhibit the use of foam performance is good;

2, it is soluble in water, application of simple change. Especially in the application of non-positive ionic table activator management system of the production of manufacturing work;

3、It has a wide range of application, which can be used in ultra-high pressure overflow dyeing agent and various printing and dyeing processes;

4、It has excellent storage reliability.

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