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Blister packaging for material control

Views: 0     Author: Site Editor     Publish Time: 2020-11-21      Origin: Site

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Blister packaging for material control

For blister packaging aluminum foil is the main material to cover the opening, is also a good barrier packaging material, pinhole in penetration is a fatal defect. During the packaging, transportation and storage process, extrusion, collision is inevitable, so the size of the pinhole or the range of aluminum material or increase, which may cause the material to have obvious fracture marks, which may lead to deterioration in the properties of aluminum material it speeds up the infiltration of gas and water vapor, affecting the stability of the aluminum material.

In general, there are two methods to accurately assess changes in pinhole conditions and changes in covering materials. First of all, it is suitable for the kneading behavior that may occur during the circulation of packaging materials through the kneading test device. Secondly, the strength of coating material before and after friction is tested, and the change of data directly reflects the change of coating material strength. The above quantitative scientific experiments are helpful to objectively evaluate the compressive properties and packaging adaptability of bubble cover materials and provide a convincing data reference for the selection of bubble cover materials.

Blister packaging consists of two parts: covering material and blister forming. It is affected by many uncertain factors such as production technology, technology and equipment. Taking water vapor barrier as an example, two commonly used foam coated matrix PVC and PVC/PVDC, as well as the finished foam coated matrix were selected for the experiment. No obvious defects were found.


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