Marden Edwards Journal

Bio-degradable overwrapping films – an update

Sunday, December 2, 2007

t is now nearly a year since I wrote the â€œOverwrapping films come full circleâ€ and nearly six months since the Packaging and the Environment the Role of Film Overwrapping" articles. The purpose of this article is to bring some of this information up to date and to outline some of the developments within biodegradable films and specifically their application to overwrapping. There are now three competing technologies for biodegradable overwrapping films. These are films made from polypropylene, films made from polylactic acid (corn starch) and finally films made from cellophane (wood pulp).

environment, overwrapping

Can Marden Edwards machines use environmentally friendly BOPP film?

Saturday, July 7, 2007

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For many years the standard for over wrapping film has been BOPP, or Biaxially Orientated PolyPropylene. BOPP is manufactured from an oil based polymer and so is not biodegradable. Cellophane used to be the material of choice for wrapping from 1912 (when cellophane was invented) onwards. Cellophane was made from cellulose, which is wood pulp, and this is inherently biodegradable. With the advent of a greater environmental consciousness, there is now a renewed interest in â€œgreenâ€ and â€œenvironmentally friendlyâ€ wrapping materials and machines.

environment, Machinery, multipacks, overwrapping, packaging