There are several classifications of food packaging bags
Is food packaging design just for good-looking? Whether it’s inner packaging or outer packaging, are we all trying to achieve a beautiful effect? ​​Actually, it is not. Now when we design food packaging bags, we still want to play a good The protective effect.
For some special materials, proper protection is very important. When we are designing food packaging bags, it is also important to carry out proper protection according to the different characteristics of the goods. Therefore, now this is for the goods. The protection of food packaging has also become a powerful practical effect of food packaging bag design, which has attracted everyone's attention and also plays a very important meaning in our lives.
1. Grain packaging bags: classified grain packaging bags should have the functions of anti-mold, insect-proof, quality-preserving and convenient transportation. Generally, they are mainly sack, cloth bag, and plastic woven bag, but the permeability of sack and cloth bag is very poor and cannot be well protected. For rice, ordinary packaging is not generally required: the rice is packaged in a plastic woven bag made of polypropylene and other materials and sealed with sutures. No fresh-keeping technology is used in the packaging process. This type of packaging has relatively poor effects on rice pest control, mildew resistance, and freshness preservation, and it usually can only contain food. However, the plastic woven bag has strong tensile strength, and rice with a packaging weight of more than 5kg can be packaged in this way, and the shelf life is about 3 months.

 
　　 2. Vacuum packaging:
The use of vacuum packaging can reduce the oxygen concentration in the storage environment, inhibit the respiration strength of the rice and the reproduction of mold, prevent the aging, mold, and insects of the rice, and better maintain the quality of the rice. Due to the large vacuum degree, the packaging material tightly wraps the rice, and the two ends of the rice are sharp, the packaging bag is easily pierced by the rice grains, causing the vacuum packaging to fail. The friction, collision and drop between the bag and the bag in the circulation process of the packaging bag can also easily cause the bag to be broken. Therefore, it is necessary to combine with the circulation environment while preserving the rice, so as to achieve good results.