The raw materials for the production of ton bags (container bags) are usually composed of PP and PE. Because of their large resistance and poor water absorption, they are prone to high-voltage static electricity! When there are flammable and explosive materials in the working environment of the large bag product or the loaded material products, it is very likely that dangerous accidents such as electrostatic ignition and explosion will occur.
GB12670-90 polypropylene resin specifies the technical requirements, test methods, inspection principles and marking, packaging, transportation and storage requirements of polypropylene (PP). The standard is applicable to granular propylene homopolymer or copolymer prepared by polymerization of propylene or propylene and ethylene under the action of a catalyst and containing additives. This standard does not apply to pigmented, filled, reinforced, blended polypropylene resins and masterbatch pellets. Technical requirements: Polypropylene resin is natural color, cylindrical particles, the particle size should be 2-5mm in any direction, without mechanical impurities. For polypropylene resin with hygienic requirements, it should meet the requirements of GB9693. The quality indicators of polypropylene resin should meet the corresponding standards.
In addition, according to the standards of CLC and IEC, the application range of anti-static conductive large bags is very wide. In addition to using substances with low ignition energy in the workplace, anti-static conductive large bags must also be used. For example, in the paint, ink and glue production plant, C bags are used for the packaging of some non-flammable substances, such as titanium dioxide, talcum powder and pigments, which should be anti-static and conductive ton bags.