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Evaluation of Can Microseam Resistance when Submitted to Mechanical Abuse
Author(s) -
Faria E. V.,
Dantas S. T.,
Junqueira V. C. A.,
Garcia A. E.
Publication year - 1996
Publication title -
packaging technology and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 50
eISSN - 1099-1522
pISSN - 0894-3214
DOI - 10.1002/(sici)1099-1522(199607)9:4<187::aid-pts364>3.0.co;2-q
Subject(s) - resistance (ecology) , materials science , forensic engineering , composite material , engineering , biology , ecology
Microseaming is a significant technological development in the can manufacturing process that has been employed in the packaging of tomato processed products in Brazil. It was developed by the Brazilian company Grupo Kramer in 1990. Due to its reduced dimensions in relation to the traditional can closing system, i.e. the conventional double seam, microseam mechanical resistance as well as its capability to guarantee package integrity when submitted to processing and distribution remain questionable. In this study microseam resistance was compared to conventional double seam resistance when submitted to mechanical abuse through a standardized impact on the seam region positioned at angles of 45 and 67°. As evaluation parameters of closing integrity loss after impact swelling resulting from the cans external contact with a bacterial suspension, internal vacuum loss and can centre depth changes were used. The microseam presented a performance comparable to the conventional double seam for the impact at 45°, whereas at 67° its performance was found to be superior. This superior microseam performance can be credited to its being more malleable, i.e., to its greater capability of deforming itself when submitted to a puncture‐type impact, to its more compact structure and to the type of deformation resulting from this type of impact.