How long is the anti-static aging of the anti-static document bag
Anti-static document bag is made of high-transparency anti-static PP base material, thickness: 8C, converted to mm: 0.08mm, 11 holes on the left side, printed anti-static signs and production date on the side of the holes, etc. Contents, the surface resistance value is 10E7-10E11 ohms, the surface friction voltage: within 100V, widely used in electrostatic sensitive areas, can be used to purify the environment (microelectronics, biological, medical, etc.), or used to ship electronic products Instructions and other purposes.
The anti-static document bag can protect electrostatic sensitive components from potential electrostatic hazards. The anti-static effect of the manufacturer is tested during the entire process from production to shipment. The manufacturer will also measure its anti-static value when it is used. Whether it is within the normal anti-static value range.
The core point is that there are requirements and controls for incoming anti-static, but it is less concerned about the timeliness of the anti-static effect, that is to say how long the anti-static value can be maintained, is it always anti-static? Simply speaking from the two materials mentioned above, neither the materials nor the processing technology can make the product have the effect of anti-static. As time goes by, the anti-static value of the document bag will gradually weaken until it disappears.
As we all know, anti-static document bags are mostly used in the manuals of some electronic components. They serve as a transit and temporary protection in the whole process, and the requirements for the invalidity of the anti-static value can be ignored. It can be analyzed in terms of time. It usually takes 3 to 5 days from production to shipment of the file bag, and it usually takes no more than one month from the time of delivery to the customer’s warehouse. In addition, the inventory backlog time is 1-3 months, and then the packaged product is transferred to the product. The use time is 6 months, and the total amount will not exceed 12 months. The effective anti-static time of the document bag is more than 2 years, far exceeding its use time. In this time period, the anti-static is very good Effectively play the application effect.
The document bag will not always be anti-static, but it will not affect the use, although the anti-static value tested by the document bag will be different. The anti-static value will slowly decrease over time. Different testing environments and even different instruments will have slightly different anti-static values for the same product, especially in autumn and winter, when the air is dry, and the detection of the document bag will be biased. , But it will not affect its anti-static effect.