Seal bond characterization of laminated plastic food cups by scanning electron and optic microscopes

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dc.authoridayhan, zehra/0000-0001-9114-4445
dc.contributor.authorAyhan, Z
dc.date.accessioned2024-09-18T20:56:51Z
dc.date.available2024-09-18T20:56:51Z
dc.date.issued2004
dc.departmentHatay Mustafa Kemal Üniversitesien_US
dc.description.abstractHeat seals of laminated semi-rigid food cups were evaluated to characterize the seal bond. Laminated lidding material was sealed at temperatures of 160-180degreesC to thermoformed cups. Various seal regions of the cups with different ultrasonic signal strengths (%) were sectioned at the rim and examined using optical and scanning electron microscopes (SEM). Ultrasonic signals were able to pinpoint seal defects; however, the magnitude of the signals did not relate to the actual seal condition or seal quality affected by the sealing process. This was attributed to the very short seal width and non-parallel surface of the heat seal, which possibly resulted in signal loss by reflection and scattering from the seal surface. C-scan of ultrasound, SEM and optical microscopic images provided the information that the heat-sealing process was unstable, due to insufficient and non-uniform heat-seal temperature or pressure, misalignment of the sealing jaws or non-parallel sealing or cutting unit configuration. Copyright (C) 2004 John Wiley Sons, Ltd.en_US
dc.identifier.doi10.1002/pts.659
dc.identifier.endpage211en_US
dc.identifier.issn0894-3214
dc.identifier.issue4en_US
dc.identifier.scopus2-s2.0-4344596270en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage205en_US
dc.identifier.urihttps://doi.org/10.1002/pts.659
dc.identifier.urihttps://hdl.handle.net/20.500.12483/12129
dc.identifier.volume17en_US
dc.identifier.wosWOS:000223429300004en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherJohn Wiley & Sons Ltden_US
dc.relation.ispartofPackaging Technology and Scienceen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectscanning electron microscopeen_US
dc.subjectheat sealen_US
dc.subjectseal characterizationen_US
dc.subjectoptical microscopic imagingen_US
dc.subjectultrasonic imagingen_US
dc.titleSeal bond characterization of laminated plastic food cups by scanning electron and optic microscopesen_US
dc.typeArticleen_US

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