Classification of food plastic packaging bags and application of food packaging bags
Food plastic packaging bags belong to composite bags made of various materials. They are one of the more commonly used packaging bags in packaging bags and are generally made of multi-layer materials.
The common packaging bags include plastic packaging bags and paper packaging bags. According to the production experience of plastic packaging bags and paper packaging bags for more than ten years, we focus on various classifications of plastic food packaging bags.
First, according to the material classification of food plastic packaging bags, before understanding the material classification of food plastic packaging bags, we must first know what the original materials of food packaging bags are.
Zhongbao Color Plastic Industry Co. , Ltd. has 15 years of packaging and printing experience. Xiaobian classifies the outer layer material, inner layer material and middle layer material of food packaging bags as follows: 1. The outer materials of food plastic packaging bags mainly include PET film, OPP Film, nylon, Kraft paper, etc.
2. The inner materials of food plastic packaging bags mainly include: pure aluminum film, aluminized film, nylon, PET film, Kraft paper, etc.
3. The intermediate layer materials of food plastic packaging bags mainly include PE film and CPP Film.
At present, aluminum foil food packaging bags and Kraft paper food packaging bags made of aluminum foil or kraft paper occupy a large share in the market.
Second, according to the classification of food plastic packaging bags, food plastic packaging bags are divided into vacuum food plastic packaging bags, inflatable food packaging bags, liquid food packaging bags, antistatic food packaging bags, transparent window food packaging bags, etc, their respective performance and use are different.
When we customize food packaging bags, we should customize food packaging bags with corresponding performance materials according to the characteristics of the packaged food.
It should be noted that the vacuumized packaging bag can also be added with anti-static PE film, and the composite is made into an anti-static vacuumized packaging bag.
Third, according to the Functional Classification of food plastic packaging bags, the above understanding of the use of food packaging bags have vacuum, inflation, liquid, anti-static, etc. , then, the functions of the food packaging bag are mainly dustproof, moisture-proof, waterproof, mildew-proof, fresh-keeping and oxidation-proof, blister, cooking, etc. These functions are made of food packaging bags made of different materials, the characteristics of its packaging bag are corresponding to different food packaging requirements, which can effectively protect the quality of food.
Four, according to the bag type classification of food plastic packaging bags, food packaging bags are divided into: folding bags, ordinary three-sided sealing bags, three-sided sealing zipper bags, back sealing pillow bags, self-supporting packaging bags, self-supporting zipper bags, self-supporting nozzle bags, special-shaped bags, five-sided seal, Zhongfeng organ bag, eight-sided seal bag, window food packaging bag, etc.
Five, according to the scope of application of food plastic packaging bags, food plastic packaging bags are widely used. Our common food categories are: rice, meat products, dried fish, salt, aquatic products, nuts, bacon, roast duck, roast chicken, roast pig, frozen food, ham, pickled meat products, sausage, cooked meat products, pickles, bean paste, seasoning wait, these foods can be packed in food bags.
Six, food plastic packaging bag production process, food plastic packaging bag production process from design to printing, and then Composite curing bag or cut, the final quality inspection into finished products.
According to the above contents, food plastic packaging bags prevent the damage of biological, chemical, physical and other external factors during the circulation of food from the factory to the hands of consumers, it can also have the function of maintaining the stable quality of food itself. It is convenient for food to eat, and it is the first to show the appearance of food, attract the image of consumption, and has value other than material cost.