One minute takes you to understand the development process of tonnes bags
China's plastic container bags are mainly exported to Japan and South Korea, and are vigorously developing the markets in the Middle East, Africa, the United States and Europe. Due to the production of oil and cement, there is a high demand for FIBC products in the Middle East; In Africa, almost all of its state-owned oil companies are mainly engaged in the development of plastic woven products, and the demand for FIBC bags is also very large. Africa can accept the quality and grade of Chinese FIBCs, so there is no big problem in opening the market in Africa. The United States and Europe have high requirements for the quality of FIBCs, and China's FIBCs do not meet their requirements.
The quality of FIBC is good or bad, and it is crucial. Therefore, the international market has its own strict standards for FIBC products. The focus of the standards varies. Japan pays attention to details, Australia pays attention to form, and EC standards focus on product performance technical indicators, concise and to the point. The United States and Europe have their strict requirements for container bags in terms of UV resistance, anti-aging, safety factor and other aspects.
The "safety factor" is the ratio between the maximum bearing capacity of the product and the rated design load. Mainly look at whether the container bag contains several times the contents, repeatedly lifted, whether the contents and the bag body are abnormal, and whether the connection is damaged. In similar standards at home and abroad, the setting of the safety factor is generally 5-6 times. FIBC products with five times the safety factor can be used safely for longer. If anti-ultraviolet additives are added, FIBC has a wider range of applications and stronger competitiveness, which is an indisputable fact.
When the sling is connected with the bag body, there are various forms such as top hanging, bottom hanging, side hanging, etc., and it is connected by sutures, so the sutures are also quite important. Only the high strength of the sling, the base fabric and stitching cannot achieve a certain strength, and the overall high performance of the FIBC cannot be guaranteed.
FIBCs mainly contain blocky, granular or powdery items, and the physical density and looseness of the contents also have significantly different effects on the overall results. For the basis for the performance judgment of container bags, it is necessary to test as close as possible to the products to be loaded by customers, which is the "standard filler for testing" written in the standard, so that the technical standards can meet the challenges of the market economy as much as possible.
Generally speaking, FIBC bags that pass the lifting test will not be a problem. If the bag really falls when lifting at the port, railway, or truck, there are only two situations: one is the wrong operation, and the other is that the container bag fails to pass the lifting test.
Where the container bag can reach more than 5 times the safety factor, two or one of the four lifting rings must have a tensile performance of more than two and a half times the rated load, even if the two slings are disconnected, the container bag as a whole will not have a problem.
FIBC products are widely used, especially packaging bulk cement, grain, chemical raw materials, feed, starch, minerals and other powder, granular objects, and even calcium carbide and other dangerous goods, loading and unloading, transportation, storage, are very convenient. FIBC products are in the rising stage of development, especially one-ton, pallet format (one pallet for one FIB, or four) FIBC is more popular.
The standardization of the domestic packaging industry lags behind the development of the packaging industry. The formulation of some standards is not in line with the actual production of products, and the content is still stuck at the level of more than a decade ago. For example, the "FIBC" standard is formulated by the transportation department, the "cement bag" standard is formulated by the building materials department, the "Geotextile" standard is formulated by the textile department, the "woven bag" standard is formulated by the plastics department, and so on. Due to the lack of pertinence in the use of products and the full consideration of interests between industries, there is no unified, effective and balanced standard.
Calcium carbide is a kind of dangerous goods that are flammable and explosive at temperature, and the requirements for packaging are very high. There is a container bag made of multi-layer composite materials that can pack dangerous goods such as calcium carbide. The capacity is one ton, the bag body is composed of three layers: outside, middle and inside, the outer bag is laminated plastic, the inner bag is polyethylene film, and there are four to five layers of special composite materials suitable for calcium carbide and other packaging. This kind of container bag has better sealing, higher strength and lower cost, compared with the traditional iron drum packaging, the transportation cost is reduced by more than 10%, the loss of powder is only one-tenth, and the economic benefits are greatly improved.
The scope of use of FIBC in China is expanding, and the export of containerized bags for special purposes such as calcium carbide and mineral items is also increasing. Therefore, the market demand potential of FIBC products is great, and the development prospects are very broad.