Most of professionals in printing & packaging industry, they are curious about how does the demetalizing works? In fact they are more familiar with the metallizing process, because it is often to see many metallized film are used in packaging. The metalized film has very good resistant for the humidity and light etc, so it is very useful for keep the inside content longer time after laminated with metalized film. But some of products need to see inside then it can be more sale, as you know nowadays when you visit in the supermarket, lots of similar products there on the shelf. If your products without any special attraction to the customers, it is not easy to get very good sale, so in some content the packaging becomes very important for the promotion.
In fact the demetalizing machine is the equipment to partly washing away aluminum on the metalized film, so we can see through the inside content or goods.
Usually there are two ways to de-metalize the metalized film, one is use chemical washing away, the other is use water , with this two solutions there are different recipe for processing. So the demetalizing machine just blend this two ways to realize the remove the aluminum from metalized film.