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Transcript of fully recyclable stand up poucheswesternplastics.org/wp-content/uploads/2019/06/1... · 6/1/2019...
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EXTRUSION | PRINTING | CONVERTING
20.05.2019 | Slide 1
fully recyclable stand up pouches
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EXTRUSION | PRINTING | CONVERTING
20.05.2019 | Slide 2
Classic stand up pouch today
BO-PET for printing
Adhesive for lamination
PE for sealinge.g
. 1
00
µm
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EXTRUSION | PRINTING | CONVERTING
20.05.2019 | Slide 3
Necessary Film Properties
High Modulus
↦ ensures in-register printing
Outstanding flatness
↦ ensures high speed printing
High transparency
↦ ensures clear print
Recyclability?
Temp. resistant outer layer
↦ensures high
speed sealing
High stiffness
↦ pouch integrity
SUP
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EXTRUSION | PRINTING | CONVERTING
20.05.2019 | Folie 4Name | Datei
0
500
1000
1500
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3500
4000
4500
5000
mLLDPE LLDPE LDPE MDPE MMWT HDPE HMWt HDPE PP PET
Stiffness (MPa)
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EXTRUSION | PRINTING | CONVERTING
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mLLDPE LLDPE LDPE MDPE MMWT HDPE HMWt HDPE PP PET
Melting Point, Tm (Degrees C)
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EXTRUSION | PRINTING | CONVERTING
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0
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MMWHD PET
Haze (%)
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EXTRUSION | PRINTING | CONVERTING
20.05.2019 | Slide 7
What would we need to do to
make it fully recyclable?
BO-PET for printing
Adhesive for lamination
PE for sealinge.g
. 1
00
µm
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EXTRUSION | PRINTING | CONVERTING
20.05.2019 | Slide 8
What would we need to do to
make it fully recyclable?
PE film for printing
Adhesive for lamination
PE for sealing
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EXTRUSION | PRINTING | CONVERTING
VAREX” Recipe ExampleStand-up Pouches (PET-replacement)
20.05.2019 | Slide 9
• BUR: 1 : 2,5• Output: ~ 450 kg/h
Primary Film• Web width: 1520 mm• Thickness: ~ 64 µm• Blocked
Amount [%] Resins Layer thickness
Functions
100 HDPE 2,5 µm Thermal resistance
100 MDPE 2,5 µm Mechanical properties
80
20
MDPE
LLDPE3,75 µm Mechanical properties
100 MDPE 2,5 µm Mechanical properties
80
20
POP
POP1,25 µm Blocking of film
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EXTRUSION | PRINTING | CONVERTING
20.05.2019 | Folie 10Name | Datei
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EXTRUSION | PRINTING | CONVERTING
MDO – Machine Direction Orientation
20.05.2019 | Folie 11Name | Datei
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EXTRUSION | PRINTING | CONVERTING
Thickness measurement
of primary film (non-stretched)
MDO stretching unit
Thickness measurement
of secondary film (stretched)
Heat cartridges
for gauge control
20.05.2019 | Slide 12
MDO stretching in blown film process
Control panel
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EXTRUSION | PRINTING | CONVERTING
VAREX” Recipe ExampleStand-up Pouches (PET-replacement)
20.05.2019 | Slide 13
• BUR: 1 : 2,5• Output: ~ 450 kg/h
Secondary Film• Web width: 1220 mm• Thickness: ~ 25 µm• Web speed: 241 m/min
We block the film in the collapsing frame.
• State of the art process• Excellent flatness• Good performance during collapsing
→ Robust, high-quality process
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EXTRUSION | PRINTING | CONVERTING
VAREX” Recipe ExampleStand-up Pouches (PET-replacement)
20.05.2019 | Slide 14
Final film fulfills all required properties:
excellent flatness good transparency sufficient gap between seal and melt temp. good stiffness made of all-PE materials
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EXTRUSION | PRINTING | CONVERTING
Printing process
Proven printability in state of the art printing processes.
20.05.2019 | Slide 15
MIRAFLEX ´́́́́́́́ | Flexographic
DYNASTAR, HELIOSTAR | Gravure
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EXTRUSION | PRINTING | CONVERTING
Recyling process
Two recycling processes have to be taken into account:
• Recyclability of process waste (edge trim).
• Recyclability of 100% PE laminate.
Recyclability was proven in trials.
• Quality of recycled resin depends mostly on the amount of printed surface.
20.05.2019 | Slide 16
100%
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EXTRUSION | PRINTING | CONVERTING
20.05.2019 | Folie 17Name | Datei
“Thank you very much
for your attention”
Sebastian Huennefeld
Product Manager – blown film
email: [email protected]
cell: +1 401 744 4346