When using textile defoaming agents, many manufacturers will encounter problems such as poor performance of defoaming agents, incorrect use methods, and incorrect additions. The following minor editors have collated some common problems and shared them with everyone.
First of all, we need to know that when using a defoaming agent, it does not exist in the system as a dissolved state, and it is generally suspended in the system. Therefore, the amount and color of the selected hydrophobic particles, Silicon oils, and hydrophobic particles are of great importance, but as long as the foam elimination effect is good and the bubble suppression time is long, there is not much problem with the corresponding system.
Problem 2: Foam suppression time of textile defoaming agent If the textile defoaming agent used belongs to the type of organosilicon, then its Silicon oil properties determine its foam suppression time, and the content of Silicon oil determines the use time of defoaming agent in the system. In addition, the size of the particle size of the textile defoaming agent also determines the filtration resistance of the defoaming agent. Too large a particle size or insufficient stirring of the defoaming agent may cause the defoaming agent to be filtered, which will affect the defoaming and defoaming properties..
Problem 3: Textile defoaming agent failure The textile environment often has high temperature, strong alkali, etc.. Therefore, if the defoaming agent's high temperature and acid resistance are not high, it will cause the defoaming agent to fail; If certain chemical costs in the system cause the defoaming agent to dissolve it, it will not play a role in defoaming.
Problem 4: The choice of type of textile defoaming agent The generation of foam is mostly under the action of external forces. The surfactant contained in the solution forms bubbles at the junction of solution and air and floats. The function of the defoaming agent is to reduce the material that is mainly used to reduce surface tension and eliminate foam during the process.
The correct use of defoaming agents can play a multiplier effect. There are many types of textile defoaming agents. Common ones are medium and high temperature dyeing defoaming agents, textile pulp defoaming agents, textile printing and dyeing defoaming agents, etc.. Therefore, appropriate textile defoaming agents must be selected according to the process flow. The effect of this will be more obvious.