Why should the surface of aluminum tube packaging be painted with white Coating?
Chúng tôi là nhà máy sản xuất bao bì mỹ phẩm theo yêu cầu, cung cấp dịch vụ trọn gói và có hơn 20 năm kinh nghiệm phong phú trong việc tùy chỉnh các loại ống đựng mỹ phẩm, ống bóp, ống ABL, ống PBL, ống bơm không khí, ống son bóng, ống chăm sóc da. PCR (Tái chế sau tiêu dùng) ) Ống , vân vân.
What is the unfamiliar relationship between packaging aluminum tubes and "Bai Ke Ding"? What is "Bai Ke Ding"? What is its important role? In fact, "white coating" means white coating, and its professional academic name is "saturated polyester resin", which chemically refers to a large class of polymers containing ester groups—COO— in the main chain structure. It is mainly used for the production of coil coatings. According to the different resin properties and structure, it can be used as the top coat, primer and back paint of coil coatings. Therefore, "Bai Ke Ding" is a layer of primer on the packaging aluminum tube.
Packaging aluminum tubes are commonly used packaging materials for cosmetics, pigments, toothpaste and other paste products. In order to better meet the aesthetic needs of the market, brand trademarks, product descriptions, and pattern designs are almost always printed on the tube body. Therefore, this protective layer of "Bai Ke Ding" (primer) is easily overlooked because it is covered. Then why should this special material of "saturated polyester resin" be coated on the surface of the packaging aluminum tube? What kind of wonderful effect does it have?
1.Protect the surface of the packaging aluminum tube. The polyester resin used in the primer has good flexibility and adhesion, and can be closely combined with aluminum to form a protective film. This protective film has excellent scratch resistance, can withstand slight scratches and abrasions, and prevents oxidation and corrosion of aluminum.
3. It can make the printing effect better. The white coating coated on the outer wall of the aluminum tube can cover the original color of the aluminum tube, and the smoother and finer the base coating of the aluminum tube, the subsequent printing effect will be better, and the quality of the finished packaging aluminum tube will be higher.
Just because white coating has such an important role, the quality of the packaging aluminum tube is not to be underestimated!
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