Revealing the secret of how conventional offset and uv offset ink demulsifier can effectively solve the problem of ink emulsification?
Publish Time: 2025-01-27
Conventional offset and uv offset ink demulsifier often encounter emulsification problems during the printing process, which not only affects the printing quality, but may also cause equipment clogging and increased maintenance costs. Demulsifiers, as a solution, can effectively solve the emulsification problem without destroying the performance of the ink.1. What is conventional offset and uv offset ink demulsifier?Definition: UV offset ink emulsification refers to the phenomenon that during the printing process, the ink and the fountain solution (usually an aqueous solution) are mixed to form an emulsion. This emulsification will cause the performance of the ink to deteriorate, such as changes in viscosity, changes in fluidity, and affected drying performance.Cause: Mainly caused by factors such as printing pressure, the ratio of ink to fountain solution, printing speed and environmental humidity.2. The impact of emulsification on UV offset printingDeterioration of printing quality: Emulsification causes the ink color to be impure, the dots to be enlarged, and the resolution to be reduced.Equipment problems: Emulsions may clog nozzles or rollers, increasing the maintenance frequency of the printing press.Reduced production efficiency: To solve the emulsification problem, it may be necessary to frequently clean and adjust the equipment, affecting the production progress.3. Mechanism of action of demulsifierDemulsifier: It is a chemical substance that can destroy the stability of the emulsion. It promotes the separation of the oil phase and the water phase by reducing the tension of the oil-water interface.Principle of action: Demulsifiers adsorb on the oil-water interface, change the properties of the interfacial film, make the emulsion unstable, and thus achieve oil-water separation.4. Choose a suitable demulsifierCompatibility: Demulsifiers need to be compatible with UV offset inks and will not affect other properties of the ink.Efficiency: It should have a fast demulsification effect to reduce the impact on the production process.Environmental protection: Choose low-toxic and biodegradable demulsifiers to meet environmental protection requirements.Conventional offset and uv offset ink demulsifiers are effective tools for solving emulsification problems. Through reasonable selection and use, they can significantly improve printing quality and production efficiency while reducing maintenance costs.
