(1) Barrier The ability to block oxygen in the environment - verified by the oxygen permeation test, can separately test the oxygen permeation of the plastic cup and the cover film or the oxygen permeation of the plastic cup that has been heat-sealed. If the plastic cup or cover film has poor barrier property, that is, the oxygen permeation amount is large, it is easy to cause the fruit products inside the package to be oxidized due to exposure to a large amount of oxygen, and the bacteria multiply, causing mildew and swelling of the canned fruit. Quality issues such as packages. (2) Physical and mechanical properties The uniformity of the thickness - mainly refers to the thickness of the cover film, which is verified by testing the thickness of the package, and the uniformity of the thickness is the basis for ensuring the stability of the package material. Puncture resistance - mainly for the cover film, verified by the puncture resistance test to prevent the poor puncture resistance of the cover film, resulting in the canned fruit canned fruit during transportation, storage and shelf life, etc. Breakage occurred under the puncture of external force. The composite fastness - mainly for the cover film, is verified by the peel strength test. If the composite film has poor composite fastness, the peel strength is low, and in addition to possibly causing delamination of the cover film, the cover film may be opened. When the separation between the composite membranes is caused, rather than the separation between the cover film and the cup body, it is inconvenient for the consumer to consume. Opening performance - verified by the opening force test to prevent the bond between the cover film and the plastic cup from being too strong or not firmly bonded, resulting in a problem that the cover film is not easy to open or leak. Sealability - Verification by sealing performance ( negative pressure method) test to prevent liquid leakage and gas leakage in finished plastic cups. (3) Hygienic performance The residual amount of organic solvent - mainly for the cover film, is verified by the solvent residue test. If the residual amount of the solvent is excessive, the packaging film has an odor, and the residual solvent easily migrates into the canned fruit, causing odor and affecting consumption. The health of the person. Non-volatile content - cover film and plastic cup should pay attention to this performance, verified by evaporation residue test, to prevent a large amount of migration in the packaging material due to the non-volatile content of the package, when contact with canned fruit, pollution Canned Fruit. The above information is provided by Jinan Languang Electromechanical Technology Co., Ltd., Labthink is a professional company dedicated to customers in the fields of packaging, food, medicine, daily chemicals, printing, adhesives, automobiles, petrochemicals, biology, construction and new energy. A global multinational company that provides industry consulting, product sales, after-sales service, and risk control. Since its establishment, it has provided comprehensive and professional packaging product quality control solutions for more than 10,000 scientific research institutions, third-party testing organizations and enterprise quality control departments. Corn Maltodextrin Powder,Organic Corn Maltodextrin,Organic Tapioca Maltodextrin,Organic Food Ingredients Qingdao Bailong Huichuang Bio-tech Co., Ltd. , https://www.qdblcycn.com