Aluminum Foil For Yogurt Packaging
Why use aluminum foil to seal small cups of yogurt?
First of all, the airtightness of aluminum foil is better than that of pure plastic. When viewed under a magnifying glass, the plastic material actually has many small holes, through which air and water can pass. Second, the aluminum foil composite film is strong. The third is the sealing process. The yogurt generally uses heat sealing. In principle, a piece of hot iron is used to iron the sealing film and the bottle mouth, so that the sealing film and the bottle mouth will be stuck together after being heated and melted to achieve a seal. Effect, the aluminum foil is more resistant to high temperature, and the sealing effect is better
The yogurt cup cover film mostly uses aluminum foil composite film material, mainly to ensure the high barrier properties of the seal, and at the same time to meet the problem of easy puncture of the straw.However, if the cover film is too easy to puncture, it will not tolerate the force of external hard objects, resulting in quality problems such as leakage and damage. Therefore, how to ensure that the puncture resistance of the cover film is more appropriate requires professional puncture resistance testing equipment and reasonable testing methods for verification. This article describes in detail the test principles, methods and test procedures of the puncture resistance verification test, which can provide practical references for related industries.
Puncture resistance is an important index performance of soft plastic film, that is, the performance of packaging materials to resist external force puncture, and its performance is characterized by "puncture resistance" or "puncture strength". For finished products packaged with flexible plastic film, they are vulnerable to sharp and hard objects (such as bamboo skewers, wooden sticks, bones, seasoning particles, and corners of quick-frozen dumplings) or outside the packaging, storage, transportation and circulation. The force of puncture, impact, etc. of frequently touched sharp objects (such as the hard edges and corners of other packaging bags). If the puncture resistance of the packaging material is poor, that is, the puncture resistance or puncture strength is low, it is easy to cause small pinhole-like holes on the surface of the package, resulting in air leakage or leakage of the finished package, and even obvious bag breakage, which makes the inner packaging Quality problems such as deterioration and leakage of the material.
Prime Quality Aluminium Foil Suppliers The quality of products produced by good aluminum foil manufacturers is guaranteed
