How to judge the quality of ton bags? Remember these 4 points
Publish Time: 2024-09-10
Ton bags, also known as container bags, are a flexible transport packaging with many advantages such as moisture-proof, dust-proof, firm and safe, and have sufficient structural strength. Ton bags are convenient to load and unload and are widely used in the shipment of powdered materials. So how to judge the quality of ton bags? The following is the relevant content summarized by the editor of Transparent Packaging.
1. Monofilament strength
To ensure the strength of the base fabric of the ton bag, the tensile strength of the flat wire must be increased. The flat wire strength should be above 0.4N/tex, and the elongation should be between 15-30%. In the production process, the amount of filler masterbatch must be strictly controlled. If too much masterbatch is added or recycled materials are added, the strength of the base fabric will decrease. Therefore, the quality of raw materials must be strictly controlled, and ton bags need to use wire drawing raw materials with a melt index that reaches the national standard. 2. Structural planning
When designing the structure of a ton bag, the manufacturer of the ton bag usually requires the strength of the waistband to be more than twice that of the base fabric, but the effect is not good in actual design operations. Because the strength of the base fabric and the waistband are different, and the base fabric will crack first. Therefore, when designing, the waistband and the base fabric should use base fabrics with opposite strengths to avoid problems.
3. Base fabric raw materials
When designing a ton bag, the manufacturer must first understand the weight of the loaded goods and determine the volume of the ton bag according to the specific gravity of the loaded goods. It is also necessary to understand whether the loaded materials are sharp and solid block materials. If it is such a material, then the base fabric should be thicker when designing the ton bag, otherwise it can be thinner. In practical design, ton bags with a load of 500kg generally use (150-170) G/m2 base fabric, the longitudinal and transverse tensile strength of the base fabric is (1470-1700) N/5cm, and the elongation is 20-35%. The weight of ton bags exceeds 1000 kg. The base fabric is generally (170-210) G/m2. The longitudinal and transverse tensile strength of the base fabric is (1700-2000) N/5cm, and the elongation is 20-35%.
4. Sewing process
Ton bags must first be sewn in accordance with the provisions of the national standard. In addition, the anti-aging function of the stitches and the influence of the stitches on the tensile strength of the base fabric must be considered. When packaging powders, toxic items, and items that are afraid of pollution, the sealing problem must be solved first. Therefore, in the design, ton bags should be sewn with thick thread and fine needle or non-woven fabric and the bottom, which can improve the sealing. In addition, when sewing ton bags, the sewing thread should be made of polyester thread with a strength of more than 18Kgy, and it is necessary to ensure that the sewing strength can meet the national standards.
The above four points are related to how to judge the quality of ton bags. I believe everyone has understood it. When purchasing ton bags, you can use the above four points to make judgments. You must purchase ton bags that comply with national regulations and are of high quality. Luoyang Touliang Packaging Products Co., Ltd. is a large woven bag manufacturer. With reliable quality, excellent craftsmanship, reasonable prices and perfect services, its products are deeply favored and praised by customers. Customers are welcome to call for consultation, or leave a message on this site
