Analysis and Simulasion of Opened Stress Mechanism on Heat Sealing Surface
(0) There is the history over the half century on the thermobonding of plastics packaging material bythe heat sealing, and large contribution has be made to be packaging utilization of the plastic material. Thebasic important function of packaging for the consumer is easiness in opening.The difficulty openability ofthe Cup, Tray and Film packaging are an important problem of the packaging mentioned in the primacy problemof UD of packaged goods. The ASTM F88-* (enactment in 1968) which becomes a worldwide standardof the heat sealing management is clarified with It is the achievement of openability and closability whichthe ultimate problem of the heat sealing technique is a basic function of the packaging. However, rationalmeasures are unfinished still. Openability and Closability have expectation function which is contrary in theequal mechanical characteristic each other. Tear opening method of notch system has been applied to manypresent goods. In this method, it becomes refuse on the table, potsherds such as broken bag scatter, and thepackaging function after it opens the resealing by doing difficult, has been lost. It is a problem that the openabilityis made to reflect peeling seal function of heat sealing based on the stress analysis of the opening andoperation. That is to say, it reaches lastly the control of melting surface temperature which qualifiedly demonstratesthe design performance of packaging material of the control of the openability. In this paper, next itemis discussed.(1) The standardization of the stress mechanism of The pluck opening is attempted.(2) It clarifies the mutual relationship of Six Elements (a)Pluck line size, (b)Pluck distance, (c)Pluck force,(d)Heat sealing strength,(e) Peeling width, (f)Elongation of material concerning the openability.(3) Evaluation and improvement of the openability of the market goods are shown by this study.
Kazuo Hishinuma
Hishinuma Consulting Engineering Office, 1232 Ogura Saiwai-Ward Kawasaki city, Japan
国际会议
The 17th IAPRI World Conference on Packaging(第17届世界包装大会)
天津
英文
8-14
2010-10-12（万方平台首次上网日期，不代表论文的发表时间）