Popular science related to glass ink defoamer
Glass ink usually consists of pigments, solvents, additives, and sometimes glass powder. Solvents are used to dilute the ink to make it easier to spray, print or paint, while additives are used to change the ink’s properties such as viscosity, flow and curing speed. The generation of foam is often a headache. Foam not only affects the quality and construction effect of the ink, but to solve this problem, glass ink defoamer came into being.
In the production process of glass ink, foam problems are prone to occur in the following links:
1. Stirring process: When the stirring speed is too fast, the stirring time is too long, or inappropriate stirring equipment is used, air is easily introduced into the ink, causing foam to form.
2. Filtration treatment: If the filtration equipment is not fine enough or is clogged, the bubbles will not be effectively removed, resulting in foam problems.
3. Filling process: If the ink is subjected to severe vibration or airflow impact when filling into the container, foam will easily form.
The principle used by glass ink defoamer is mainly to solve the foam problem through two aspects. First, it can change the physical conditions for foam formation, allowing bubbles in the ink to burst more quickly. Secondly, the active substances in the defoaming agent can interact with the surfactants in the ink to reduce surface tension and reduce foam generation. Through these mechanisms, glass ink defoamer can effectively control and eliminate foam problems.
When using glass ink defoamer, it can be added at different stages. For example, add an appropriate amount of defoaming agent to the ink during the stirring process and mix thoroughly; or spray the defoaming agent on the surface of the ink during printing to improve the printing quality. The amount of defoaming agent added can be adjusted according to specific conditions to achieve appropriate defoaming effects.
