Printing products are one of the more extensive products that penetrate human life, and can be used in printing, decoration, construction, etc. As a new type of printing glazing material, water-based gloss oil has been paid more and more attention. However, in the process of using water-based polish, there are often a lot of foam because of the problem of foam, and the personnel engaged in it are not strange, usually use water-based polish defoamer to eliminate these foam problems, and can also effectively avoid the emergence of bubbles twice. Why do water-based polish defoamer have such a role in the printing industry? Let's take a look.






The use of water-based light oil defoamer

Causes of water-based polish foam


The main components of water-based gloss oil are water-based resin and additives. After coating, a thin layer of polymer is left on the surface of the substrate, which gives the coating different characteristics, such as high gloss, matte finish, friction resistance, etc., due to different formula combinations. During construction, in addition to the emulsifier added in the water-based polish, many operations are also easy to cause the foaming of water-based polish. For example, air spraying and airless spraying are often needed, which will increase the free energy of the water-based light oil system to varying degrees, resulting in the generation of a large number of foams. Therefore, it can also be said that in the process of production and use of water-based varnish, the emergence of foam problems is inevitable.




The role of water-based light oil defoamer


Water-based light oil defoamer is a transparent or milky liquid with the advantages of small amount, strong defoamer, long time of defoamer and good water dispersion. It is especially useful for the water-based light oil foaming system, and there is no need to worry about affecting the leveling performance of the product after the addition of defoamer, resulting in shrinkage, breaking milk, etc., resulting in incomplete printing of the pattern on the printing paper and waste of raw materials. It has good heat resistance, chemical stability, and can be well dissolved with water-based light oil and other systems.






Use of water-based light oil defoamer


Water-based polish oil defoamer has a very strong effect on the foam produced by water-based polish oil and ink, and then the fine foam can also play an effect. This product and water-based ink compatibility is good, added to the foaming system will not affect the film formation and shrinkage, fishiye and other problems. In the printing material industry is also widely used, water-based paint, ink, ink, gloss oil, leather edge oil, paper coating, film adhesive, latex paint, adhesive, polyvinyl alcohol and other processes can be used.