Anti-static ziplock bags are special packaging materials designed for storing or transporting electronic components, precision instruments and other items that are sensitive to static electricity. Their main functions include:
1. Preventing electrostatic damage
Shielding static electricity: The bag body is usually made of multi-layer composite materials (such as PE/metal/anti-static coating), which can effectively shield the external electrostatic field and prevent static electricity from penetrating and damaging the internal items.
Dissipating charge: The surface resistance is usually in the range of 10^6~10^11Ω, which can slowly guide the accumulated static charge to prevent electrostatic discharge (ESD) from breaking down sensitive components (such as chips and circuit boards).
2. Physical protection
Self-sealing design: The bag mouth has a pressing strip or zipper structure, which is dust-proof and moisture-proof after sealing to prevent items from being contaminated or oxidized.
Abrasion-resistant and puncture-resistant: The multi-layer structure provides mechanical protection and reduces friction or collision damage during transportation.
3. Environmental isolation
Moisture-proof and anti-oxidation: Some anti-static bags have anti-static + moisture-proof functions (such as adding an aluminum foil layer), which are suitable for storing components that are sensitive to humidity.
4. Labels and safety
Warning labels: Usually printed with ESD warning signs (such as yellow triangle symbols) to remind users to pay attention to electrostatic protection.
Transparent and visible: Some bags are made of transparent materials, which is convenient for directly viewing the contents without frequent opening.
5. Applicable scenarios
Electronic manufacturing industry: storage of IC chips, hard drives, motherboards, etc.
Medical equipment: packaging precision electronic medical equipment.
Military industry/aerospace: protection of high-value sensitive equipment.
6. Precautions
It is better to use it with an anti-static working environment (such as a grounded workbench, anti-static wristband).
Avoid mixing with ordinary plastic bags, which are prone to high-voltage static electricity due to friction.
With the above characteristics, anti-static ziplock bags have become an indispensable ESD protection solution in the fields of electronics and medical care.
