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http://dx.doi.org/10.7736/KSPE.2013.30.4.409

Fabrication of Breathable Film using Laser Pulses  

Choi, Hun Kook (Advanced Photonics Research Institute, GIST)
Sohn, Ik Bu (Advanced Photonics Research Institute, GIST)
Noh, Young Chul (Advanced Photonics Research Institute, GIST)
Choi, Young Jin (Daerung Packaging Industry)
Chang, In Gu (SM Tech)
Publication Information
Journal of the Korean Society for Precision Engineering / v.30, no.4, 2013 , pp. 409-413 More about this Journal
Abstract
A polypropylene film was ablated using a $CO_2$ laser, Ti-sapphire femtosecond laser, and UV nanosecond laser. For modified atmosphere packaging, polypropylene films were ablated by laser pulse with different pulse energies and measured on an optical microscope. Also, we observed the shelf life of a banana contained within packaging of a breathable zipper bag. As a result, we have demonstrated that the breathable film can efficiently extend the shelf life of respiring foods, particularly fresh fruits and vegetables. The development of breathable film laser microfabrication system will more useful for industrial applications.
Keywords
Polypropylene Film; Breathable Film; Nanosecond Laser; Femtosecond Laser; $CO_2$ Laser;
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Times Cited By KSCI : 1  (Citation Analysis)
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