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‘Generation 2.0’ high barrier flexible packaging solutions

‘Generation 2.0’ high barrier flexible packaging solutions

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csm 3680 Hero Samples 28e234757d

The launch of a new generation of BOBST ‘hero samples’ represents a significant achievement in the mission to deliver state-of-the-art solutions utilizing a new generation of polymers.

After several different samples of mono-material standup pouches (MDO PE, BOPE, BOPP and CPP) were launched at K 2019, the partners involved have continued their considerable investment and intense research to progress the samples even further, to ensure all industry requirements are met in terms of processability, barrier, safety and optical quality.

“Finding sustainable alternatives to non-recyclable plastics is one of the most important challenges of our times,” said Nick Copeland, R&D Director at BOBST. “It is a particular challenge for flexible packaging such as that used for food packaging, where the high barrier protection against oxygen and water that prevents deterioration is currently provided by multi-layer, multi-material packaging, which cannot be recycled. This next generation of high barrier mono-material structures brings us one step closer to being able to provide completely recyclable solutions to replace non-recyclable packaging.”

BOBST’s ‘Generation 2.0’ samples include:

  • New ultra-high and high barrier full polypropylene laminated pouches, printed in gravure and recyclable, with the option of an AluBond metallized barrier or transparent AlOx (aluminum oxide) barrier layer and solvent free barrier adhesive and/or topcoat.
  • The first ever UV flexo combined with digital inkjet printing for AluBond metallization, full polypropylene laminated bags with barrier performances - using a solventless adhesive again for a mono material pouch designed for recycling.
  • UV low migration flexo printing, providing barrier with AluBond metallization, on full low-density polyethylene laminated pouches.
  • CI flexo water-based printing on full MDO-PE laminated pouches with AluBond metallization, providing ultra-high barrier using a high barrier solventless adhesive.

Every project partner has played an essential role in achieving this important milestone to develop and industrialize a series of new mono-material solutions.

  • Dow is a leading global supplier of major polyethylene (PE) resins and represents the first step in the Generation 2.0 samples’ production chain.
  • Brückner Maschinenbau is the market leader for biaxial (BO) film stretching lines. With Brückner’s R&D competence, the good performance of the BO films regarding barrier values and processability could be achieved.
  • Hosokawa Alpine is a leading supplier in the field of blown film extrusion and expert in MDO (Machine Direction Orientation) technology, a crucial component in manufacturing high-performance single-material compounds made of polyethylene.
  • Elba develops and manufactures automatic high-speed bag and pouch making machines. The company converts the finished reels into pouches.
  • Sun Chemical is a global leader in inks, coatings, pigments and advanced materials, and provides the sustainable oxygen barrier solventless adhesives used in the program.
  • Michelman develops and manufactures specialized sustainable chemistries used in digital printing and foodservice packaging and they supplied he water-based barrier topcoat used in part of the project.
  • Indopoly manufactures a wide range of Biaxially Oriented Polypropylene (BOPP) films for the flexible packaging industry and supplied a BOPP film with special skin layer for one of the pouches.
  • UFlex is India's largest flexible packaging and oriented film (BOPET & BOPP) company and supplied the BOPP film used in some of the tests.

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