Features And Production Process Of Anti-static Aluminum Foil Bag
Dec. 17, 2019
Anti-Static Aluminum Foil Bag, with metallic luster, good light shielding, high reflection ability to heat and light, metallic luster and reflection ability can improve the brightness of printing colors; good insulation, strong protection, airtight Water vapor prevents moisture absorption and vaporization of the contents, and is not easy to be attacked by bacteria and insects. It has good shape stability and is not affected by humidity changes. Easy to process, it can print, color difference, embossing, surface coating, gluing and painting on aluminum foil bags; composite aluminum foil bags also have advantages such as insulation.
Anti-Static Aluminum Foil Bag
So what is the production process of antistatic aluminum foil bag? Anti-Static Shielding Bag Supplier will tell you next.
The production process of aluminum foil bags is simple and tedious. The overall production process is: aluminum ingot smelting-casting rolling-cold rolling-intermediate annealing-cold rolling-aluminum foil wool-rough rolling-medium rolling-fine Rolling (double closing)-slitting-finished aluminum foil annealing-compound-bag making-finished aluminum foil bag-packaging. In this process, the whole process starts from the aluminum foil wool to the processing of the plain foil, and then the compound bag is made. In order to save costs and time, aluminum foil bag manufacturers generally choose to directly purchase aluminum foil films and then make composite material bags.
In the process of using anti-static aluminum foil bags, you may encounter dealumination of aluminum foil bags. So what is the reason?
There are two types of dealumination of aluminum foil bags: flaky black spots appear on the aluminized surface, and the aluminized layer disappears. Why does this happen? How to solve this situation?
Flaky black spots appear on the aluminized surface. This is because the vacuum aluminized layer is very thin and is prone to wet oxidation, which causes the flaking black spots on the aluminized surface of the film.
The aluminized layer disappears, especially for PET aluminized film / PE film packaging, and the tuyere edge of PET aluminized film / PE film composite packaging bag. This is because the aluminum disappears due to moisture or erosion by the adhesive solvent, which is actually a phenomenon of dealumination. The aluminum coating of the aluminum-plated film is wetted or eroded by the adhesive solvent, and it will also open the composite film. When the internal stress of the blown PE film shrinks and rebounds, the aluminum will transfer to the inner film, and the aluminum will lose. The support of the plane of the thin film mirror is also gone as if it disappeared. If you look closely, a trace amount of metal aluminum is actually concentrated on the inner film.
1. The sealing edge of the aluminum foil bag must be pressed well. Pay attention that the aluminized surface does not adhere to the PE film. The aluminized surface should be compounded with the mask, and then the aluminized film surface and the inner PE film should be compounded.
2. Pay attention to the composite packaging bag with aluminized film, which is not suitable for boiling and cooking.
The above is the characteristics and production process of the anti-static aluminum foil bag introduced by the supplier of Anti-Static Protective Tape. Hope to help everyone.