Document Detail

Contaminant transfer during the coextrusion of tri-layer polymer films with a recycled layer. Effect of this transfer on the time of protection of the food.
MedLine Citation:
PMID:  10696263     Owner:  NLM     Status:  MEDLINE    
Reusing old polymer packages as new food packages necessitates the coextrusion of tri-layer polymers, the old polymer being located between two virgin polymer layers. As it takes some time for the contaminant initially located in the old polymer, the virgin polymer layer acts upon the food pollution as a functional barrier. With the coextrusion process, the polymer layers are heated up to a high temperature and let cool down in air. During this coextrusion stage, the contaminant diffuses through the package at a fast rate over a short period of time. Then the time of protection of the functional barrier is significantly reduced. The process of the contaminant transfer is especially studied either during the coextrusion stage of the film or in the package-food system at room temperature.
A L Perou; S Laoubi; J M Vergnaud
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Advances in colloid and interface science     Volume:  81     ISSN:  0001-8686     ISO Abbreviation:  Adv Colloid Interface Sci     Publication Date:  1999 Jun 
Date Detail:
Created Date:  2000-03-20     Completed Date:  2000-03-20     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  8706645     Medline TA:  Adv Colloid Interface Sci     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  19-33     Citation Subset:  IM    
Laboratory of Materials and Chemical Engineering, Faculty of Sciences, University of Saint-Etienne, France.
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MeSH Terms
Food Contamination / prevention & control*
Food Packaging / methods*
Food Preservation* / methods
Hot Temperature
Time Factors
Reg. No./Substance:

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