I m a paint dealer and I have a small problem with sticker furniture, sprayed with PE transparent bo

The paper is generally relatively thin, and it is very normal for the veneer to penetrate the bottom, and there are two commonly used treatment methods to prevent the background color from being exposed after the sticker

1) Pre-coat a layer of putty on the surface of the plate, and add a pigment similar to the color of the paper pattern or the coating effect of the product in the putty, so that the bottom is similar to the color of the paper, so that the bottom will not be visible during painting, this method is commonly used in large-scale sticker factories;

2) the other is to add titanium dioxide (instead of carbon white powder) to the glue, that is, a white pigment (white paint is made of the pigment), which can make the glue appear white, and at the same time have a certain filling performance, separating the bottom from the paper, and playing the role of preventing the bottom from penetrating, but the overall effect is worse than the first one;

Of course, the degree of penetration has a great relationship with the surface quality and color difference of the substrate, if the surface of the substrate itself is dense and the color is consistent, the glue can be directly adjusted to the color of the paper grain, and it can also play a role in preventing the bottom from penetrating.

The master is not talking about carbon dioxide but titanium dioxide, which is to use the hiding power of titanium dioxide to cover the dark background color of the furniture in advance, and of course it will not reverse the bottom after painting, which is the same as brushing a layer of white primer first. But to calculate the cost account, the price of titanium dioxide has risen in the past two years is crazy, and different talcum powder can be used in large quantities, so the cost is too great!

Titanium dioxide is available in chemical raw material stores.

I think you're probably talking about titanium dioxide, an inorganic white pigment. With the addition of this powder, the sticker may not be easy to be flat, and in addition, the reverse bottom is caused by the strong penetration of the solvent. You can try to brush an inorganic water glass solution on the surface of the sticker, and then spray PE colorless paint after drying, which may solve the problem.

Brush the paper with white glue (that is, white glue with water) and it will be solved.

Titanium dioxide is available in chemical raw material stores.