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Technical and Application Analysis of Unitized Bulk Bags in the Logistics Sector

Release date:

2022-04-29

FIBC, or flexible intermediate bulk container, is a versatile transport packaging solution widely used for the handling and shipment of powdered, granular, and lump‑type materials such as food, grains, pharmaceuticals, chemicals, and mineral products. In developed countries, FIBCs are commonly employed as primary packaging for both transportation and warehousing applications.

Flexible intermediate bulk containers (FIBCs) are versatile transport packaging solutions widely used for the handling and shipment of powdered, granular, and lump‑type materials such as food, grains, pharmaceuticals, chemicals, and mineral products. In developed countries, FIBCs are commonly employed as primary packaging for both transportation and warehousing.

Bulk bag

In fact, in the express‑delivery and logistics sector, transit packaging bags are also classified as a type of logistics container. However, the specifications for express‑delivery packaging at China Electronics Logistics are inconsistent, and the practices surrounding such packaging appear less standardized than those for logistics containers; moreover, they do not adhere to the same standards as dedicated collection and storage bags.

Process Description

FIBC bags are primarily made from polypropylene, with a small amount of stabilizing additives. After uniform mixing, the material is melted in an extruder to form plastic film, which is then cut into filaments and stretched to produce high‑strength, low‑elongation PP yarns. These yarns are subsequently woven into base fabrics, which, along with straps and other components, are sewn together to create ton bags. In the express delivery sector, traditional packaging has long been woven bags; now, eco‑friendly alternatives are gradually replacing them, driving the widespread adoption of green packaging. Even when woven bags are used, they are typically highly recyclable packaging solutions.

The quality of bulk bags—whether good or poor—is of great importance. Consequently, the international market has established stringent standards for woven‑fabric packaging products, each with its own focus. Japan emphasizes meticulous details, Australia prioritizes aesthetic form, while the European Community’s standards concentrate on clear, concise technical performance criteria. Meanwhile, both the United States and Europe impose rigorous requirements regarding UV protection, anti‑aging properties, safety factors, and other key attributes.

FIBC bags are primarily used to package bulk, granular, and powdered materials, and the physical density and bulkiness of the contents significantly affect the overall performance. The basis for evaluating packaging‑station performance is to conduct tests using a filling material that closely mimics the product the customer intends to load. This is what the standard refers to as “standard test fillers,” ensuring that technical specifications can meet the demands of a market‑driven economy.

Generally speaking, collection bags that pass the lift‑test are not a problem. When handling cargo at ports, on railways, or with truck cranes, if a bag does fall, there are only two possible causes: operator error, or failure to pass the lift test.

Leather packaging products have a wide range of applications. They are particularly well-suited for handling and transporting powdered or granular materials such as cement, foodstuffs, chemical raw materials, animal feed, starch, and minerals, and can even safely accommodate hazardous substances like calcium carbide, making loading, transportation, and storage exceptionally convenient.

The scope of use for flexible intermediate bulk containers (FIBCs) in China is expanding, and exports of FIBCs for specialized applications—such as calcium carbide and mineral products—are also on the rise. Consequently, the market demand for packaging bags and containers is substantial, with broad prospects for future development.

FIBC bags are used for export packaging; during unloading, transportation, and storage, they must effectively protect the loaded goods and ensure their safe delivery to the destination. Therefore, FIBC design must meet four key requirements: safety, ease of storage, usability, and airtightness.

A Brief Discussion on the Development Plan for Eco-Friendly Bulk Bags

The differences between woven bags, ton bags, and bulk bags

A Brief Discussion on the Development Plan for Eco-Friendly Bulk Bags

The differences between woven bags, ton bags, and bulk bags

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Technical and Application Analysis of Unitized Bulk Bags in the Logistics Sector

汽车内饰：孙经理