Is the anti-static shielding bag a vacuum bag?
Frequently asked questions from customers: Can shielding bags be classified as vacuum bags?
First understand the basic properties of the shielding bag material. The material structure of the anti-static shielding bag is APET / CPP (semi-aluminum film / polypropylene cast film). It has good transparency, is relatively hard, feels good, has a weak tearing force, and has good heat sealability. Tear is good, the pulling force is strong, and the touch is softer. The overall color is silver-gray translucent, and the built-in objects are visible.
The unique structure of the anti-static shielding bag can form the induction cover effect, protect the contents of the bag from the electrostatic field, prevent the accumulation of static electricity, and avoid the harm of static electricity. It is the first choice for anti-static packaging bags. Anti-static shielding bag is suitable for the transportation and packaging of static sensitive high-tech electronic products such as PCB and IC. In addition to all the anti-static properties of anti-static packaging bags, it also shields ESD electrostatic discharge and external electromagnetic radiation performance of external personnel and equipment.It has excellent anti-static, anti-radio frequency, waterproof vapor penetration, and anti-salt mist functions. . Their unique four-layer structure can form an "induction cover" effect to protect the contents of the bag from the electrostatic field. In addition, the inner layer is made of ethylene which can eliminate static electricity and has excellent anti-static function. The inner and outer layers of the anti-static shielding material are made of transparent anti-static material, with a semi-transparent conductive metal layer in the middle, so it has good anti-static and electrostatic shielding performance. The method of making anti-static shielding bags, such as edge sealing, is the same as that of aluminum foil bags and nylon bags. The difference is that the material properties of the anti-static shielding bags are not equal to vacuum bags.
Some customers will use shielding bags for "vacuum" processing. In a strict sense, they should not be called vacuum bags. Just extract a part of the air from the bag, so that there is no obvious inflation feeling when sealing, far from the degree of vacuum, and because the pressure of the air is small, there is no obvious pressure on the inside of the bag.It can be done Such a treatment. If the product needs to be vacuum-treated and has the anti-static performance of the anti-static shielding bag, it is recommended that the customer choose an anti-static aluminum foil bag.The material of the aluminum foil bag can ensure that the customer's product has both comprehensive anti-static effect and absolute suction. Vacuum effect. Or we add another layer of nylon in the shielding bag, so that the thickness changes back, the toughness will increase a lot, and the effect of vacuuming can be achieved.