How to ensure food packaging within the validity period

Food packaging bag is generally more than two layers of composite packaging bag

Food packaging bag can make food and oxygen, water vapor, stains and other separation, prevent leakage is also a necessary factor in packaging design. To extend shelf life, some packages include a desiccant or deoxidizer. Food packaging methods are also vacuum packaging or extract air from packaging bags. The main function of packaging bag is to keep food clean, fresh and safe during the shelf life.

Food packaging plays an important role in reducing transportation safety risks. Packaging can also prevent food from being transferred to other products. Food packaging also makes it less likely that food will be eaten. Some food packaging firm, there are anti - counterfeit marks, to protect business interests from loss. Labels such as laser labels, special colors, and SMS authentication can be placed on the package. In addition, to prevent theft, retailers place electronic monitoring labels on food packaging, waiting for consumers to exit the store for demagnetization.

QS Food quality and safety market access mark, that is, food production license mark, QS mark belongs to the quality mark. Enterprises use the QS logo of the food they produce, indicating that the enterprise promises that its products have been inspected and qualified, in line with the basic requirements of food quality and safety. The implementation of food quality and safety market quasi system of food, before leaving the factory must be printed on the packaging or logo (paste)QS mark, no QS mark, shall not leave the factory for sale. At present, we have three groups of food to carry out food quality safety market access system.

It can be divided into photodegradation, biodegradation and environmental degradation. Degradation performance reflects a product's ability to be accepted by the environment after the use of waste. If the degradation performance is good, the bag will break, differentiate and degrade under the combined action of light and microorganisms, and then become fragments and accepted by the natural environment; If it is not degraded well, it will not be accepted by the environment, resulting in "white pollution".