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 Pinhole resistance is an important property of packaging materials, especially liquid packaging pouch and Modified Atmosphere Packaging. In the conveying process, due to the impact, vibration easy to produce pinhole, will cause a great loss.

As practitioners, they shall have a certain understanding of the influence of temperature and humidity on the entire process of dry lamination. Here’s a summarize to let everyone deepen the understanding of the influence of temperature and humidity on the dry lamination and improve the operator's attention.

Composite flexible packaging materials are widely used in food packaging with various types and different packing requirements.

the shelf life also has a lot to do with the barrier of the retort pouches and the type of food. Since packaged food is completely free of bacteria and air, it can achieve the purpose of long-term preservation of food under non-refrigerated conditions. It can be eaten cold or hot, easy to use and save energy.

Normal packaging refers to those packaging that the inside food is not easy to deteriorate during the shelf life and ordinary storage conditions, and no need to sterilize the packaged food. The common structures include PP/Aluminized CPP, PET/CPP(LDPE), OPP/CPP(LDPE), OPP Single layer heat sealing film etc.

Normal packaging refers to those packaging that the inside food is not easy to deteriorate during the shelf life and ordinary storage conditions, and no need to sterilize the packaged food. The common structures include PP/Aluminized CPP, PET/CPP(LDPE), OPP/CPP(LDPE), OPP Single layer heat sealing film etc.

 The film is correctly divided into two halves at the "W" plate. Before the film passes through the longitudinal heater, the upper and lower layers of the film overlap unevenly, and some air is not completely discharged or the film enters the seam of the rubber roller in the bag making process. There are wrinkles. In this case, when the film is heat-sealed, part of the air cannot be discharged, so air bubbles appear after sealing. It is easy to produce bubbles when the width of heat sealing edge exceeds 40mm.

According to the general lethal principle of microorganisms, microorganisms will inevitably suffer fatal damage in a thermal environment higher than their maximum growth temperature, and it will be aggravated with the extension of heating time until the microorganisms die.