How's FIBC Bag Work?

white ton bag with spout
white ton bag with spout

Scope of application

Chemical raw materials, pharmaceutical raw materials, plastic raw materials, food additives, feed additives, metallurgical powder, ore powder, refractory materials, etc. are all suitable for the industry of ton bag packaging.

Development path

my country’s plastic woven FIBC bags are mainly exported to Japan and South Korea, the Middle East, Africa, the United States, and Europe. Due to the production of oil and cement, there is a great demand for ton bags in the Middle East; in Africa, almost all of its state-owned oil companies focus on the development of plastic woven products, and the demand for container bags is also large. Africa can accept the quality and grade of Chinese big bags, so there is no big problem in opening up the market in Africa. The United States and Europe have high-quality requirements for FIBCs, and China’s FIBCs cannot meet their requirements.
The quality of the FIBC bag is good or bad, it is very important. Therefore, the international market has its own strict standards for FIBC products. Standards vary in their focus. Japan pays attention to details, Australia pays attention to form, and the European Community standard pays attention to product performance technical indicators, which are concise and to the point. The United States and Europe have strict requirements for container bags in terms of UV resistance, anti-aging, and safety factor.

The “safety factor”

FIBC BAG package
FIBC BAG package

The “safety factor” is the ratio between the maximum bearing capacity of the product and the rated design load. It mainly depends on whether the contents of the big storage bags are loaded several times and 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. It is an indisputable fact that if the anti-ultraviolet additive is added, the container bag has a wider application range and stronger competitiveness.
When the sling is connected to the bag body, there are various forms such as top hanging, bottom hanging, side hanging, etc., and are connected by sutures, so the sutures are also very important. Just relying on the high strength of the sling, the base fabric and stitching cannot reach a certain strength, nor can the overall high performance of the container bag be guaranteed.

FIBCs mainly contain the Bulk

FIBCs mainly contain bulk granular or powdered items, and the physical density and looseness of the contents have significantly different effects on the overall results. As for the basis for judging the performance of the bulk bag, it is necessary to use the product as close as possible to the customer to be loaded for testing. This is the “standard filling material for testing” written in the standard, so as to make the technical standard meet the challenges of the market economy as much as possible.


How’s FIBC Bag Work? 

Generally speaking, there is no problem with the FIBC that has passed the lifting test. If the bag really falls off during hoisting in ports, railways, and trucks, there are only two cases: one is the operation is wrong, and the other is that this type of container big bag fails the lifting test.
For FIBCs that can achieve a safety factor of more than 5 times, two of the four rings or one of the two rings must have a tensile performance of more than two and a half times the rated load, even if the two slings are broken, the FIBC will be damaged. Overall there will be no problem.

FIBC products have a wide range of applications

Especially for bulk cement, grain, chemical raw materials, feed, starch, minerals, other powders, granular objects, and even dangerous goods such as calcium carbide. It is very convenient to load, unload, transport and store. . FIBC products are in the rising stage of development, especially FIBCs in one-ton, pallet form (one pallet with one FIBC, or four) are more popular.
The standardization of the domestic packaging industry lags behind the development of the packaging industry.

How’s FIBC Bag Work?

Open top ton bag
Open top ton bag

The formulation of some standards is inconsistent with the actual production of products, and the content is still at the level of more than ten years ago. For example, the “Container Bag” 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, and the “Woven Bag” standard is formulated by the plastics department. Due to the lack of full consideration of the pertinence of product use and the interests of the industry, there is no unified, effective, and interest-balanced standard.

The use of jumbo ton bags in my country is expanding, and the export of FIBC big bags for special purposes such as calcium carbide and minerals is also increasing. Therefore, the market demand potential for ton storage bag products is very large, and the development prospect is very broad.

Design Principles

The design of the FIBC Jumbo bag should strictly implement the national standard GB/T10454-2000. Container bags are used as export packaging to ensure that the exported goods can effectively protect the loaded items during loading, unloading, transportation, and storage, and transport the goods to the destination in good condition. Therefore, the design of the container bag must meet four main points, namely safety, storage, usability, and sealing.

1. Security

  • Mainly refers to the strength of the container bag. In the design, it is necessary to consider the packaging volume, the weight of the contents, and the number of packaging units, as well as the distance of transportation distance and the number of times of handling, and which means of transportation and transportation methods to use. In the GB/T10454-2000 national standard for container bags, the technical index requirements for base fabrics and slings of container bags are strictly specified. From the perspective of safety, it is clarified that the structure of container bags is all bottom-hanging structures. The safety factor must reach 1.8.

2. Custody

  • According to the user’s conditions of use, reasonable selection of materials, and reasonable ratio. The anti-aging ability of plastic products exposed to sunlight is a more concerning issue, and it is also a problem often encountered in the actual use of container bags. Pay attention to the use of anti-violet agents and the selection of materials in the production process.

3. Usability

  • When designing the container bag, it is necessary to fully consider the specific ways and methods of the customer’s use of the container bag, such as lifting, transportation, and loading material performance. In addition, it is necessary to consider whether it is food packaging, and it is necessary to consider whether it is non-toxic and harmless to the packaged food.

4. Sealing

  • Different packaging materials have different sealing requirements. For example, powder or toxic materials, and those that are afraid of contamination have very strict requirements on sealing performance, and materials that are easily damped or mildewed also have special requirements on air tightness. Therefore, when designing the container bag, pay attention to the influence of the base fabric lamination process and the sewing process on the sealing.

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