The greening of packaging films and stretch-blown bottles

Light-weighting and the use of renewable resources for inputs and resins have led to a greening of packaging films and stretch-blown bottles. This has been due to the replacement of some non-renewable petro-based inputs by inputs based on renewable resources like plants in the resin manufacturing process. One major area of sustainability where a lot of progress has been made recently is the substitution of resins based on non-renewable inputs like fossil fuels by those based on inputs sourced from renewable resources like agricultural produce (plants). The other is light-weighting and source reduction in flexible packaging laminates. Major success areas in packaging have been ‘green’ PET resins (used for the production of oriented films and stretch-blown bottles) and the development of suitable lower thickness biaxially oriented film substrates for use in multi-layered flexible packaging structures. Lower thickness substrates Development of film substrates of lower thicknesses has been an area that film manufacturers have been working on continuously for a long time and, over the years, the lowest thicknesses used for making flexible laminates had come…

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