Flat Bag:This style of bag doesn't expand as much as side or bottom gusset bags. Flat bags are ideal for small, lightweight items such as cookies, pretzels, chips, or candy.
Details of Products:
menu fast food packaging green bag
PA/PE 0.115mm etc.
Sealing & Handle:
Vacuum bag technology overview
Vacuum bag is the main function of oxygen in order to prevent food spoilage, its principle is simple, because food metamorphism causing mold mainly caused by the activity of microorganism, and the survival of most microorganisms (e.g., mold and yeast) is need oxygen, and vacuum packing is using this principle, the packaging and food within the cell oxygen smoke, make small things lost "survival environment".
Therefore, deoxygenation can effectively prevent food from deteriorating and maintain its color, aroma, taste and nutritional value.