Tetra Recart · 2017. 3. 14. · Aug-05, 4 Tetra Recart - a large development project Ambition to...
Transcript of Tetra Recart · 2017. 3. 14. · Aug-05, 4 Tetra Recart - a large development project Ambition to...
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Aug-05, 1
Tetra Recart
Paperboard in a new challenging environment –
The Tetra Recart development story.
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Aug-05, 2
Tetra Pak and canned food
Organic growth outside liquid food160 bio. packs is produced annually
Food industry knowledge
Application of Tetra Pak core competencies
Sealing technologyBoard and polymer propertiesPrinting technologyPackage material converting
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Aug-05, 3
Canning History
First opening instruction (1824):
"Cut round on the top near to the outer edge with a chisel and hammer".
1806 Invention of food canning by Nicolas Appert
1810 Peter Durand patented sealed airtight tin can
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Aug-05, 4
Tetra Recart - a large development project
Ambition to become a major packaging option for producers of canned food
One of Tetra Pak’s most challenging projects• New packaging material• New package• New form and seal machine• Remaining parts based on existing technologies and
equipment
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Aug-05, 5
Sterilising the food in the package
=Retorting = In-container sterilisation
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Aug-05, 6
• Package based on paperboard in:
• 100 % relative humidity• up to 130 °C • for up to 3 hours...
Challenge No 1 –the retorting process
...and still have• good appearance• high print quality• excellent mechanical properties • extremely good product protection• to fit existing recycling systems
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Aug-05, 7
The Paperboard development
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Aug-05, 8
Package Integrity
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Aug-05, 9
How did we solve it?
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Aug-05, 10
Paper Board
Technical solutions
• Unique board quality with special sizing
Challenge
• Moisture resistance at high temperatures
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PolymersChallenge
• To find the polymers that • resists 130 °C• are not brittle at chilled conditions• are extrudable in existing laminator
Technical solutions
• New polymer grades:• Polypropylene based
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Aug-05, 12
Printing Quality
Technical solutions
• UV-ink• Print on outside polymer• Lacquer to protect the print
Challenge
• Find a retortable ink• Create a good printing
surface without using coating material
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Aug-05, 13
• Package based on paperboardwith a shelf life up to 24 months
Challenge No 2 – Productdemands
• Oxygen barrier• Light barrier• Tight to microorganism
Lennart Alkskog, Jun-05, 93
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Technical solutions
• Polymer reinforced aluminium foil
Oxygen barrierChallenge
• Create an oxygen barrier better than any existing packagingsystem based on board
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Aug-05, 15
Product tests
Joint venture with customersMTU - Mobile Test Unit at customerproduction factories
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Aug-05, 16
Packaging material
• Inside polypropylene layer• Aluminium foil• Polypropylene• Paperboard • Outside polypropylene layer • Printing and coat of lacquer
Paperboard= Renewable resource
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Tetra Recart =the retortable carton
Volume: ~ 400 mlParticle foodBlanks-fed system Laser perforatedopeningShelf life up to 2 yearsRecyclable
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Easy to open
Perforation with laser technique
The ”depth” could be adjustedThe polymer crystallisesThe heat improves the adhesion between the layers
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Aug-05, 19
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Aug-05, 20
Thank you for the attention!