What are ton bags in international trade freight?
Container bags are primarily made of polypropylene (PP) or polyethylene (PE) and other polyester fibers. These materials make container bags excellent for shipping bulk powdered materials. Their characteristics include large capacity, light weight, easy loading and unloading, simple structure, light self-weight, foldability, small space occupation for empty return, and low price.
Characteristics and classification
1. Load capacity and volume: The load capacity of container bags ranges from 0.5 tons to 3 tons, while their volume ranges from 500 to 2300 liters.
2. Cargo type: According to the contents, it is divided into bulk cargo container bags and small package cargo container bags, suitable for one-time use and turnover use. 3. Shape: The shapes of container bags include round, square, and U-shaped.
4. Lifting structure: including top-lifting, side-lifting, and bottom-lifting types, usually equipped with inlet and outlet ports.
performance parameters
Container bags can be designed according to different needs, offering both reusable and disposable options. They can be square or rectangular in shape, with lifting methods including top lifting, side lifting, and bottom lifting. The feed opening can be chosen with or without (large opening or waterproof cover cloth), and the discharge opening can also be chosen with or without. The load capacity of container bags ranges from 0.3 tons to 2 tons.
Scope of Application
Container bags are widely used in various industries such as chemical raw materials, pharmaceutical raw materials, plastic raw materials, food additives, feed additives, metallurgical powders, ore powders, and refractory materials.
Design standards and key points
The design of container bags must strictly adhere to the national standard GB/T10454-2000 to ensure effective protection of goods during the loading, unloading, transportation, and storage of export goods, guaranteeing their arrival at the destination in good condition. The design must meet four key points: safety, storage quality, usability, and sealing.
1. Safety: When designing, it is necessary to consider the packaging volume, load capacity, and number of packaging units. Additionally, the transportation distance, handling frequency, as well as the transportation tools and methods used should also be taken into account. National standards have strict requirements for the technical indicators of base cloth and slings, emphasizing the bottom-lifting structure, and the safety factor must reach 1.8.
2. Preservation: Select materials and proportions reasonably according to user usage conditions. Special attention should be paid to the anti-aging ability of plastic products under sunlight exposure. During the production process, attention should be paid to the use of anti-ultraviolet agents and the selection of materials.
3. Usability: During design, full consideration should be given to the customer's usage methods, including lifting, transportation methods, and the properties of the loaded materials. Additionally, if used for food packaging, it must be ensured to be non-toxic and harmless to food.
4. Sealing performance: Different materials have varying requirements for sealing performance. Powdered materials or toxic substances demand strict sealing, while materials prone to moisture or mold also have specific demands for airtightness. The design must consider the impact of the base fabric coating process and sewing process on sealing performance.