Sealing plastic utensils with cover film is a common way of packaging sealing, using the cover film and plastic utensils edge after heat bonding product sealing, so as to achieve the sealing effect. Consumers need to open the cover film before eating. The difficulty of opening the cover film is directly related to the consumer’s consumption experience and determines the product image.
Common material composition of tear film 
ET// V.M.PT /PE/ tear film, AL/PE/WAX. It IS SUITABLE FOR sealing the LID OF BOTTLE CAP, JAM, milk, butter, cheese, pudding or bowl of INSTANT noodles with aluminum foil.
A good easy to uncover film has the following characteristics;
1. Safe sealing, can keep the product fresh and prevent leakage of package
2. The cover peeling is smooth without drawing
3. Wide heat sealing window, high packaging efficiency
4. After heat sealing with PE, PP,PET, PVC, PS and other materials, it can be easily opened and sealed
5. It is widely used for water label, jelly cover, food, medicine and other cover films that need to be opened after heat sealing.
For example, the opening force of the yogurt cup seal cover film is also called the sealing strength or heat sealing strength. If the heat sealing strength is too large, the seal cover film should not be opened; If the sealing strength is too small, it is easy to be damaged and leaked in the process of storage, transportation or sales, which will lead to the unedible yogurt and even pollute other items. Therefore, the sealing strength should be maintained in a reasonable range, which can not only meet the requirements of product sealing performance, but also do not affect the opening strength of the product.
Post time: Nov-03-2022