Potato chips are fried foods and contain a lot of oil and protein. Therefore, preventing the crispness and flaky taste of potato chips from appearing is a key concern of many potato chip manufacturers. At present, the packaging of potato chips is divided into two types: bagged and barreled. The bagged potato chips are mostly made of aluminum-plastic composite film or aluminized composite film, and the canned potato chips are basically made of paper-aluminum-plastic composite barrels. High barrier and good sealing. In order to ensure that potato chips are not easily oxidized or crushed, potato chip manufacturers fill the inside of the package with nitrogen (N2), that is, nitrogen-filled packaging, relying on N, an inert gas, to prevent the presence of O2 inside the package. If the packaging material used for potato chips has poor barrier properties to N2, or the packaging of potato chips is not tightly sealed, it is easy to change the content of N2 or O2 inside the package, so that the nitrogen-filled packaging cannot protect the potato chips.
Potato chips in bags are popular because they are easy to carry and affordable. The bagged potato chips are mostly packed with nitrogen filling or modified atmosphere, which can prevent the potato chips from being oxidized and not easily crushed, and can also prolong the shelf life. The requirements for potato chips packaging bags are:
1. Avoid light
2. Oxygen barrier properties
3. Good air tightness
4. Oil resistance
5. Packaging cost control
The structure of the common potato chips packaging bag in China is: the composite structure of 0PP printing film/PET aluminized film/PE heat-sealing film. This structure is that three substrate films are compounded twice, and the process is increased: the design of inner/outer heat sealing can effectively solve the problem of scalding or deformation caused by doubling the thickness of the heat sealing film at the center of the top of the pillow pack: foreign potato chips Unlimited packaging ideas, unique bag shapes are great for brand differentiation
Post time: Jul-22-2022