In recent years, as people's environmental awareness has become stronger and stronger, the use of Non-woven Shopping Bag has become more and more common. However, some non-woven eco-friendly bags are beautifully printed and strong, and will not have quality problems for a long time; while some will be damaged to varying degrees after a few uses, such as cracks, broken handles, etc. So what causes these quality problems in some non-woven eco-friendly bags?

The quality problems of non-woven eco-friendly bags are mainly cracks or cracks at the mouth or bottom of the non-woven bags, and the reasons for these problems are largely due to the use of seams and ultrasonic heat sealing processes. We know that in addition to manual sewing, non-woven bags also have ultrasonic heat sealing. The principle of this process is to heat the edges of non-woven bags together. This method is suitable for mass production. The bag's own load-bearing capacity is 5KG-8KG, so once this type of non-woven bag is loaded with heavy objects, it will easily crack and cause damage.

As for the manual sewing process of non-woven environmentally friendly bags, when we produce the hemming of non-woven bags, we need to withdraw the needle to strengthen the firmness of the bag mouth. However, some workers have misunderstandings in their techniques, thinking that the flatter and cleaner the hemming is, the better the quality will be. In fact, this is not the case. Since we need to cut the hemming after withdrawing the needle, if we cut it to the same level as the bag mouth, it is equivalent to cutting off the previous back stitches to strengthen the firmness, so this problem will occur.

However, it is also relatively simple to solve the problem of easy cracking of non-woven environmentally friendly bags. It is necessary to let the workers with misunderstandings change the method of cutting the hemming. First, the number of back stitches must be sufficient when we back stitch. Second, when we cut the hemming, we cannot cut the back stitch part together. Normally, the cutting position should be three millimeters higher than the bag mouth of the non-woven bag, so that the firmness of the bag mouth can be guaranteed without affecting the appearance.