Packaging aluminum tube with 'white' what is not known?

packaging aluminum tube with 'white' have what is not known? What is 'white'? Is there anything important in it? In fact, the 'White' is White
coating, professional academic name for unsaturated polyester resin, chemical refers to the main chain structure containing ester base - COO— The major types of polymers. It is mainly used in the production of coil coating, depending on the resin properties and structure, can be respectively used in coil coating of paint, primer, paint, etc. So, the 'white' is a layer of primer on the aluminum tube packing.


in the aluminum tube packaging cosmetics, paint, such as the toothpaste paste products commonly used packaging material, in order to better meet the aesthetic needs of the market, almost all the pipe shaft printing brand trademark, product description, design patterns, etc. So, this a protective layer of 'white' ( Primer) Very easy to be ignored due to be overwritten. So why in the packaging aluminum tube surface coating a layer of special materials 'saturated polyester resin'? It has what kind of wonderful role?


one, to protect the surface of the aluminum tube packing. The polyester resin coating use, good flexibility and adhesion, can bind to aluminum and form a protective film. This layer of protective film has excellent scratch resistance, can withstand the minor scratches and a sideswipe, and prevent the oxidation of aluminum and corrosion.


2, beautiful with decorative effect. Primer is usually white, and the walls of the coating on the entire package aluminum tube. But now in order to comply with the trend of the market, the primer can begin to use different color to coating, greatly improved the visual aesthetic effect of aluminum tube packing.

3, can make the printing effect is better. Coated aluminum tube outer wall of White
coating, primary colors can cover the aluminum tube, and painted is more smooth and detailed aluminum tube, the subsequent printing effect will be better, in the production of complete packaging aluminum tube quality will be higher.

because of 'white' is such an important role, so packaging aluminum pipe quality, the achievement of it is to be reckoned with! ！