茂名What are the characteristics of plastic food bags?

In daily life, the basic elements of life are nothing more than clothing, food, housing and transportation, and "food" is undoubtedly the most important of the four elements. With the continuous improvement of living standards, people pay more and more attention to food safety. Whether the plastic bags used for packaging food meet the food-grade standards has become a common concern of many people. What are the characteristics of plastic food bags? Let's take a look at it with Dalian bag making products.

The categories of food plastic bags are generally divided into ordinary food packaging bags, vacuum food packaging bags, inflatable food packaging bags, boiled food packaging bags, steamed food packaging bags and functional food packaging bags. The materials are also varied. Common food-grade plastic bag materials include PE (polyethylene), aluminum foil, nylon and composite materials.

In order to ensure that food is fresh and free from disease and rot, food-grade plastic bags have some common characteristics regardless of category and material. First, they are required to completely block organic solvents, grease, gas and water vapor; Second, it has excellent permeability resistance, moisture resistance, cold resistance, heat resistance, light resistance and insulation, and has beautiful appearance; The third is easy to form and low processing cost; Fourth, it has good strength. The plastic packaging bag has high strength per unit weight, impact resistance and easy modification.

In addition to the above characteristics, for consumers of edible products, food-grade plastic bags also have some characteristics based on rigid requirements. First of all, the main materials and auxiliary materials used generally contain few chemicals harmful to human body, or according to the special needs in the actual production process, the content of chemical substances is within the range of national standards, and the chemical stability is strong; Sometimes, food-grade plastic bags will also be added with anti-corrosion, anti-rust and anti-electromagnetic radiation functions to ensure the safety and health of food from all angles.

Because food-grade packaging is inseparable from people's lives, all major manufacturers must strictly comply with the production regulations and specifications, and comply with the production process of food-grade plastic bags, before products can be put into the market through review.