Oil-based ink defoaming agent: an important formula for ink
Defoaming agents are added to the formula of oil-based inks to control and reduce foaming during the production and use of the ink. Defoaming agent is a surfactant that has the ability to reduce the surface tension of liquid, effectively destroy and inhibit the formation of bubbles, thereby preventing the generation and spread of foam in the ink.
The main functions of oil-based ink defoamer include:
1. Inhibit foam formation: Defoaming agents can reduce the tension on the ink surface and destroy the gas-liquid interface, thus inhibiting the formation of bubbles and reducing the generation of foam.
2. Accelerate the bursting of bubbles: Once the foam is formed, the defoaming agent can accelerate the bursting of the foam, causing the bubbles to collapse quickly, thus reducing the existence time of the foam in the ink.
3. Improve production efficiency: By controlling the generation and diffusion of foam, defoaming agents can reduce problems caused by foam during the production process and improve production efficiency and product quality.
4. Improve printing effect: During the printing process of oil-based ink, defoaming agents can reduce the generation of foam on the printing machinery, thereby improving printing accuracy and quality stability.
In practical applications, the correct selection and use of defoaming agents is key. According to different ink formulas and usage conditions, it is necessary to select the appropriate defoaming agent type and dosage. The use of too much or too little defoaming agent will affect the defoaming effect and ink performance, so reasonable preparation and testing are required.
