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source:other news release time:2023-02-06 Hits:
1. No variability
a) Mechanical processing
The stretching strength, elongation rate and other indicators of composite packaging bag materials are extremely important for film suppliers and users. The test method of testing the strength of the test is mainly measured. The French and Elmendorv cranes the method, preferably Elmershoff, which is preferably a constant radius. For film processors, it is not good for the processing process to break the strength or too small. For consumers, the tolerance function of the material is a primary goal that the packaging is easy to open.
The friction force in the practice packaging process is often both mop power and resistance, so it is necessary to use things that control the friction coefficient, so that it is within the appropriate limit. Active packaging is used for coils. The general requirements for the inner layer of friction are relatively small, while the outer friction coefficient is moderate. Whether the thickness of the material can be average on the various functional goals of the material.
b) Seal and adhesive
The hot -sealing bag is the last order of the entire composite packaging process. The heat -sealing bag requires a superior thermal strength, which can ensure the subsequent processing of the composite bag without leakage. The tightness of the seal is very related to the accurate selection, thermal sealed pressure, the heat sealed temperature and time, and the thermal sealing method.
c) Printing
Several goals such as abrasion resistance, adhesion, and printing accuracy are first proposed for the characteristics of the printing industry.
2. Mechanical maintenance
For internal composite packaging or small packaging bags, the application sealing experimental meter can detect the packaging of the packaging parts after an imitation experiment.
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