Designing An Anti-foaming Agent Is A Balancing Act

Date:Jun 21, 2019

Designing an anti-foaming agent is a balancing act

• the mechanism of defoaming agents means that they must be incompatible with foams.

• the higher the performance of defoaming agent, the worse its compatibility

• the more compatible the defoaming agent, the lower its performance

• the right defoaming agent is a balance between these requirements

Dyeing factory's pain points:

As the refining agent or degreasing agent necessary for pre-treatment is usually prepared with fatty alcohol polyoxyethylene ether or isomeric alcohol, these negative non-ionic surface living in the dyeing cylinder water bath under the action of mechanical force is easy to produce a number of foam, sometimes seriously affect the efficiency of the dyeing cylinder, waste water and energy, affect productivity,

The factory usually prepares some diluted defoaming agents in the workshop for emergency. These defoaming agents need to withstand the relatively harsh high temperature and acid and alkali of pre-treatment. However, this still brings inconvenience to the factory. Non-foaming or low-foaming primer can better meet the market demand.

There are two ways to develop non-foaming or low-foaming primer.

It is often contradictory to choose a non - foaming or low - foaming surface operation, while considering the refining or deoiling effect.

Stable defoaming agents are added to existing systems, but these products are rarely or extremely expensive on the market.