Ton bag, also known as container bag or space bag, is a medium-sized bulk container, which can be transported in a containerized unit mainly by a crane or a forklift. It is one of the common packaging materials. The raw material for big bags is polypropylene, and the raw materials for producing polypropylene are natural gas, petroleum, and coal. Coal is first used to make gas, and oil is first refined to extract naphtha. Then the gas from natural gas, coal gas and naphtha cracking is separated, the separated methane (C1) can be used as fuel, ethylene (C2) can be used to produce products such as polyethylene, propylene (C3) can be used to produce products such as polypropylene, butane Alkenes (C2) can be used to produce rubber, etc., and other gases (Cs~Cg) have other uses.
Four characteristics of ton bags.
1. The safety of big bags
It mainly refers to the strength of the big bag. In the design, the packaging volume, the weight of the contents and the number of packaging units should be considered, as well as the distance of transportation and the number of times of transportation, and what kind of transportation tools and transportation methods should be used.
2. Storage of big bags
According to the user's operating conditions, the materials should be selected reasonably and the ratio should be reasonable.
3. Usability of big bags
When designing big bags, it is necessary to fully consider the specific methods and methods of customers using big bags,
4. The tightness of the big bag
The packaging materials are different, and the sealing requirements are different. For example, powder or toxic materials, and items that are afraid of contamination have very strict requirements on sealing performance, and materials that are prone to moisture or mildew also have special requirements on air tightness.