Food packaging bags * check method

choose food packaging bags, do & other; A look, two, three hands & throughout; 。

have a look at the outer packing damage, there is no food production license QS logo, whether or not marked clear date of production and quality;

the smell of food packaging have peculiar smell, especially in direct contact with food packaging, such as supermarket cooked the lunch boxes and plastic wrap, etc. , if the bags have fragrance, * also good discreet, food packaging should be tasteless, because some scented bags may contain excessive amounts of volatile substances;

three hands are said to feel with the hand food packaging, a wipe with the hand, look to whether rub off and pull out once, see whether easy to damage. Everyone except the food itself * note at ordinary times, take care whether the food packaging *. Packaging can also affect the food because it is over, and so bring your disease. Food packaging bags mainly include soft plastic food bags and paper bags. Plastic bags as the main body of packaging materials, plays a more and more important role in the field of food packaging. Plastic is a synthetic resin monomer as raw materials, adding suitable amount of stabilizers, plasticizers, antioxidant, coloring and preservatives and other additives made from a kind of polymer material. In a wide range of food packaging materials, plastic has the advantages of strong, lightweight, beautiful, economic, especially the plasticity, able to meet the requirements of various container on modelling. Form a hard soft, transparent or opaque, and makes a variety of color and texture. So plastic occupies a significant place in the packaging materials, along with the development of the plastics industry, plastic packaging is widely instead of metal, glass and paper.