Which properties should be paid more attention to in plastic cup canned fruit?

(1) Barrier capacity of oxygen in the environment - verified by oxygen permeability test, the oxygen permeability of plastic cup and cover film can be tested respectively or the overall oxygen permeability of plastic cup with cover film sealed If the barrier of plastic cup or cover film is poor, i.e the oxygen penetration is large, it is easy to cause the oxidation of nutrition components and bacterial reproduction of fruit products inside the package due to contact with a large amount of oxygen, resulting in the quality problems such as mildew, bulging and so on (2) Uniformity of thickness of physical and mechanical properties - mainly refers to the thickness of the cover film It is verified by testing the thickness of the package The uniformity of thickness is the basis to ensure the stability of the performance of the package material Puncture resistance - mainly for the cover film, it is verified by puncture resistance test to prevent the cover film from being damaged under the puncture effect of external force during the transportation, storage and shelf life of the cup fruit can due to the poor puncture resistance of the cover film Composite fastness - mainly for the cover film, it is verified by the peel strength test If the cover film has poor composite fastness and low peel strength, it may cause the separation between the cover film and the cup body when the cover film is opened instead of between the cover film and the cup body, which may cause inconvenience to consumers Opening performance: it is verified by opening force test to prevent the adhesion between the cover film and the plastic cup from being too firm or not firm, resulting in the problem that the cover film is not easy to open or leak Leakproofness - it is verified by the test of leakproofness (negative pressure method) to prevent the leakage of liquid and air in the finished plastic cup canned fruit (3) Hygienic performance organic solvent residue - mainly for the cover film, it is verified by the solvent residue test If the solvent residue is too much, the packaging film has peculiar smell, and the residual solvent is easy to migrate to the canned fruit, resulting in peculiar smell, and affecting the health of consumers Content of nonvolatile substance - both the covering film and the plastic cup need to pay attention to this performance It is verified by the evaporation residue test to prevent the packaging material from generating a large number of migration and polluting the canned fruit due to the high content of nonvolatile substance in contact with the canned fruit The above information is provided by Jinan Languang Electromechanical Technology Co., Ltd Labthink Languang is a global multinational enterprise specialized in providing industry consultation, product sales, after-sales service and risk control for customers in the fields of packaging, food, medicine, daily chemical, printing, adhesive, automobile, petrochemical, biological, construction and new energy Since its establishment, it has provided comprehensive and professional quality control solutions for more than 10000 scientific research institutions, third-party testing institutions and quality control departments of enterprises.