Talking about the importance of container bag compression test

Unlike woven bags, the special plastic bags for carrying large-scale goods and large tonnage goods are different from woven bags. The container bags are for large tonnage goods. It is a common understanding that the packing ability and compressive performance are relatively strong. So, it is very important to test the compressive properties of the bag. What are these aspects?

As for the packing products with high quality and high frequency of use, some defects are inevitable. The infilling of these defects is one of the most important problems. How to deal with them has become a pressing problem. Broken thread is a common problem in the sewing of the bag. The quality of the suture is not in conformity with the requirements, the machine is adjusted improperly, the over-line parts have sharp mouth, the operation method has problems, the needle is not cooled sufficiently, etc., which will lead to the thread breaking. The short line phenomenon is not allowed for the container bags directly sold by the container manufacturer.

When sewing products with uneven thickness by lock type sewing machine, in case of broken thread arrangement, in addition to thinking about and analyzing the reasons above, we should also pay attention to the broken line caused by two times of hook thread. As is known in the sewing machine industry, due to the demand of designing the operation cycle, the transmission ratio of the upper shaft and the spindle of the lock type sewing machine is 1:2. that is, the upper shaft is rotated for one week and the spindle shaft is rotated for two weeks.

Unlike woven bags, the special plastic bags for carrying large-scale goods and large tonnage goods are different from woven bags. The container bags are for large tonnage goods. It is a common understanding that the packing ability and compressive performance are relatively strong. So, it is very important to test the compressive properties of the bag. What are these aspects?

In general, the container bags are light. It has low cost and can be used repeatedly; the tensile strength and impact resistance are high, and the elongation is small; it is wear-resistant, acid alkali resistant, corrosion resistant, consolidated and durable, and can be used in harsh environment; it has good permeability and easy to clean; lining the plastic film or coating a layer of plastic in the container bag has waterproof and moisture-proof performance, but also improves the lubricity of the plastic woven bag bag, which is not available It is convenient for stacking of container bags.