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Generally, there are two situations that bear danger:

● Explosive Materials - When explosive materials are packed into big bags, the use of conductive big bag depends on the minimum ignition energy of the material.

● Explosive Environment - Dust, gas or steam can cause explosive environment. The danger is highest when the explosive environment consists of gas or steam.

Classification according to the degree of hazard of the cargo material

MIE (minimum ignition energy), mJ (mega Joule)

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TYPE A

Type A big bag is made of fabric without any protective function against static electricity accumulation, and can be used to fill, unload and transport non-flammable and non-explosive products. Most of big bags used in the industry are belong to this type..

TYPE B

The Type B big bags are made from low-voltage fabric which has low resistance (6Kv). They are used to fill, unload and transport non-flammable and non-explosive products. They can be used to transport dry and flammable products in powder form.

TYPE C (CONDUCTIVE BIG BAGS)

The C-type big bag is completely conductive. They have black conductive carbon fibers woven into the fabric. In addition, all parts of the bag are connected by conductive interconnects, so the resistance between any part is less than 107 ohms. The Type C big bag has a black ground point, and one of them must be grounded during filling and discharging. Alternatively, some filling and unloading stations can ground Type C through the lifting loops. Using C-type bag can effectively eliminate electrical loads.

TYPE D

The Type D bag is a substitute for the Type C. Due to the Crohmiiq fabric on the bag during the loading and unloading of the product, the accumulated energy can be directly released into the atmosphere without grounding. Make sure that the surface of the type D bag is not in contact with conductive materials such as water and oil.

Conductive inner liners

Big Bags with Inner liners?can also be constructed as Type B or Type C. They are constructed with special conductive Inner liners.

Labels usage

Conductive bags are labeled with an yellow?extra label?which contains some relevant information.

Testing

We are measuring both breakdown voltage and conductivity of the fabric for the finished Type C and Type D bags.

What happens if I don’t use the proper conductive big bag?

If the conductive bag is not correct used or the Type C bag is not properly grounded, in the worst case, it could explode at your or your customer's factory. This can lead not only to financial loss, but also to personal injury. So far, to our knowledge, fortunately there have never been major accidents caused by big bag.

FAQ:

1. What is an anti-static big bag?

An anti-static big bag is a bulk bag made from a static protective fabric, which allows static electricity to discharge safely. It commonly seen in Type C and Type D bags.

2. What is Crohmiq?

Crohmiq is a brand name of static protective fabric by Texene Packaging Fabrics.

3. Crohmiq is too expensive. Is there an alternative choice of static protective fabric?

It depends if you want to be 100% safe all the time, or 100% safe some of the time? Over 12 million Crohmiq big bags have been used since 1995 without incident of an accidental discharge.

4. Should the conductive big bag with a inner liner?

Yes, there’s a special conductive inner liner can be used for outer conductive big bag.

5. Can you provide a sample of conductive big bag?

Yes, we can provide a free sample for you to testing.

6. What is the minimum order for conductive big bag? And how about for standard FIBC?

The MOQ for conductive FIBC is 1000pcs.

The MOQ for standard FIBC is 200pcs.

Due to the large amount require, animal feed is usually packed in big bags for easy loading and delivery. Animal feed big bag is designed with a standard four loop or one (two) loops and usually including company printing for advertising. They are mainly made from fabric with coating or lamination to provide protection from water or moisture.