MATERIALS | BARRIER FILM
higher flexibility – which is controlled by the ethyl- ene content. It – along with other forms of EVOH – is a popular choice for barrier packaging because it is recyclable in many polyolefin recycling schemes. A high-barrier version of EVOH can help to
Above:
Mitsubishi’s Soarnol can help to reduce the need for polyamide in packaging
Sustainable barrier At the Thin Wall Packaging event in November, Souvik De and Yasuhiro Hirano of Mitsubishi Chemical presented details of how the company’s Soarnol (EVOH) and Nichigo G-Polymer (BVOH) can be used to create sustainable multilayer barrier packaging.
Soarnol is already commonly used as a gas barrier within packaging structures. It can be tweaked so that it has either a higher barrier or
reduce the thickness of this layer within a packag- ing structure. At the same time, regrind from waste such as thermoforming scrap can be incorporated into a new, partially recycled barrier layer in new packaging. “Soarnol EVOH resins with an ethylene content over 29mol% can be considered as compatible for polyethylene film recycling,” said the presenters. In addition, multilayer packaging film with up to 15 wt% Soarnol can be fully recycled in the presence of the company’s Soaresin recycling additive, they added.
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www.amiplastics.com �
www.matw.com �
www.bobst.com �
www.supervacoils.com �
www.exxonmobilchemical.com �
https://eu.mitsubishi-chemical.com
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