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OUR MONO-PP SOLUTIONS
Making the packaging world more sustainable
OUR MONO-PP SOLUTIONS
Making the packaging world more sustainable
PP Mono-Material Solutions
IMPROVED FLEXIBLE PACKAGING RECYCLING
WITH MONO-MATERIAL SOLUTIONS USING OPP FILMS
PRINTABLE WEBS
Replace paper or PET with OPP using a broad range of features
Some of the most demanding packaging formats and product segments are using paper, oriented PET films or other harder to recycle substrates in laminate forms. Papers and PET films are stiff, heat stable and tolerate high seal jaw temperatures allowing for a robust packaging operation.
To replace Paper or PET films, OPP films are available with a broad range of features. Commonly available in white or clear, matt or glossy, one or two-side processable, heat sealable or non-sealable, barrier or non-barrier formulations and usually compatible with most printing and lamination processes.
PAPER can be substituted either with OPPalyte™ white OPP films either glossy (SHH) or matt (ORH), or with reverse printed Bicor™ clear OPP films with a matt look (CSRM).
Glossy or matte PET films can be replaced with Bicor™ clear OPP films (NND, NNH, CSRM) to deliver various functional features or visual aspects depending on the final use.
PAPER REPLACEMENT WITH BOPP FILMS
PAPER-LOOK ASPECT | OPP FILM | GAUGE (µm) | HEAT SEAL* | FILM DESIGN (OUT/IN) | FEATURES | |
CLEAR
(REVERSE PRINT) |
MATT | CSRM | 18, 25
20, 30 |
NHS
HS |
Matt/TRT
Matt/TRT |
Good jaw release
O/O seal and lap (O/I) seal to PP |
GLOSS OR PARTIAL
MATT OPV |
NNH | 20
20 to 40 21 |
NHS
HS HS |
TRT/TRT
Acrylic/Acrylic Acrylic/PVOH |
2-side treated; good jaw release
Aroma & MOH barrier High gas, aroma & MOH barrier |
|
WHITE
(SURFACE PRINT) |
GLOSS OR PARTIAL MATT OPV | SHH | 28, 40
35-45 42-52 |
HS
HS HS |
TRT/TRT
Acrylic/Acrylic Acrylic/Acrylic |
Two side treated
High gloss; Aroma & MOH barrier High gloss; Aroma & MOH barrier |
MATT | ORH | 60-70 | HS | Matt TRT/Gloss TRT | 2-side treated |
Footnotes: NHS = non heat sealable; HS = heat sealable; MO = barrier to mineral oils; * lap sealable to PP films;
Optionally clear barrier OPP films (MB890, MB866) are also available in various gauges for two-ply applications using reverse printing. Alternatively, white barrier OPP films (MW647, MH647) provide outstanding glossy white aspect with excellent barriers to aroma and mineral oils.
PET REPLACEMENT WITH BOPP FILMS
VISUAL ASPECT | BICOR FILM | GAUGE (µm) | HEAT SEAL* | BARRIER | FILM DESIGN (OUT/IN) | KEY FEATURES | |
CLEAR REVERSE PRINT | GLOSS | NND | 20, 25
15-50 20-40 16 21 16 |
NHS
HS HS HS HS HS |
–
– Aroma Gas, aroma Gas, aroma H2O, gas, aroma |
NHS/TRT
HS/TRT Acrylic/Acrylic HS/EVOH Acrylic/PVOH HS/AlOx |
Non-sealable; Good jaw release
O/O & I/O seals with Cast or OPP High gloss, MOH barrier; O/O seals MOH barrier; O/O & O/I seals (PP) MOH barrier; O/O seals (acrylic) MOH barrier; Flexo print only |
MATT | CSRM | 18, 25
20, 30 |
NHS
HS* |
–
– |
NHS/TRT
HS/TRT |
Non-sealable; Good jaw release
O/O seal and lap (O/I) seal to PP |
|
PARTIAL
MATT & GLOSS |
NNH | 20
20-40 21 |
NHS
HS HS |
–
Aroma Gas + Aroma |
TRT/TRT
Acrylic/Acrylic Acrylic/PVOH |
Two side treated; Good jaw release
MOH barrier; O/O seals MOH barrier; O/O seals (acrylic) |
Footnotes: NHS = non heat sealable; HS = heat sealable; MO = barrier to mineral oils; * lap sealable to PP films;
BARRIER WEBS
Replace Alu Foil or vacuum coated PET with OPP barrier films
For sensitive products, many barrier laminates still use thin Aluminum foils or vacuum coated PET films (clear coated or metallized) that are non-recyclable when combined with printable outer web or sealable inner web polyolefin films. Outstanding moisture, gas, light and aroma barriers can be delivered with OPP films and usually results in improved mechanical properties such as puncture or flex-crack resistance.
Alu foil and Met-PET can be replaced with Metallyte™ high barrier (MM288) or ultra-high barrier (MM883, MML883) OPP films – typically in 2-side processable form – or optionally with white metallized high barrier OPP films (MU842).
ALUMINUM FOIL & MET-PET REPLACEMENT WITH BOPP FILMS
BASE FILM TYPE | METALLYTE FILM | LAMINATE TYPE |
WVTR 38°C; 90%RH | OTR 23°C; 0%RH | Aroma & MOH Barrier | ALU FOIL or MET-PET REPLACEMENT EXAMPLES |
CLEAR | 15MM288 | 3-PLY | 0.1
0.1 0.1 |
25
0.1 0.1 |
+
+++ +++ |
Soluble drinks, instant coffee
Dry milk, roasted coffee Liquid Packaging |
WHITE | 28MU842 | 3-PLY
2-PLY |
0.1
0.1 0.1 |
0.1
0.1 0.1 |
+++
+++ +++ |
Dry yeast
Baby food Dehydrated soups |
For transparent applications, Alox-Lyte™ films (AO894, AOL893, AO893) or Bicor™ coated films (MB866, MB890) are suitable to either replace SiOx or AlOx vacuum coated PET films or to shift thicker barrier layers (EVOH) from coextruded PE or PP sealants to the middle or outer webs of laminates and results in improved PP mono-material composition for better recyclability.
CLEAR COATED PET REPLACEMENT WITH BOPP FILMS
BARRIER TECHNOLOGY | BASE FILM ASPECT | OPP FILM | WVTR 38C 90%RH | OTR 23C 0%RH | Aroma & MO barrier | TARGET REPLACEMENT |
ACRYLIC |
CLEAR WHITE |
20MB666 | 2-5 | 550 – 1000 | +++ | PET, Cellophane, PVdC-OPP, Paper |
EVOH/PVOH | CLEAR | 5 | 0.5 | +++ | PVdC-OPP, EVOH coex PP or PE, dry applications | |
ALOX | CLEAR | 0.7 | 0.5 | +++ | PET-AlOx, PET-SiOx, PET-PVdC, PVdC-OPP |
Footnotes: MO = barrier to mineral oils
Jindal Films is continuously improving its high barrier technologies with better tolerances as well as developing modified OPP films for more demanding applications such as for liquid packaging or for retort sterilized segments.
HEAT SEALANT WEBS
Replace PE films with enhanced seal performance OPP films
Most demanding packaging applications – such as for powdered products or those with MAP – use blown or cast polyethylene heat seal films that contribute to strong pack integrity. Cast PP or enhanced BOPP films can be used to shift the final laminate towards a PP mono-material composition, resulting in improved recyclability. OPP films provide enhanced mechanical properties (e.g. high stiffness, great puncture resistance) over most blown or cast films, to help to significantly down-gauge the sealant webs and provide additional features like easy tear propagation from a notch or from a crimp-seal.
Jindal Films has developed specific Bicor™ or Metallyte™ OPP films with higher seal performance to partially close the gap with PE sealants. The latest generation of Bicor™ Ultra Seal films (MB344US) delivers 6 times higher seal strength than most standard coex OPP films, with exceptional hot tack window and often with lower seal initiation temperatures (SIT) than most cast PP films.
OPP FILMS WITH IMPROVED SEAL PERFORMANCE
MATERIAL REPLACEMENT | HEAT SEAL PERFORMANCE | OPP FILM | BASE FILM ASPECT | SIT (°C) | SEAL STRENGTH | WVTR 38°C 90%RH | OTR 23°C;0%RH |
Standard OPP applications | Broad Seal Range
(low SIT) |
HLD | Clear | 80 | + | ** | |
STD | White | 80 | + | ** | |||
SVD | White | 100 | Peelable | ** | |||
MLB | Metallised | 85 | ++ | 0.25 | 40 | ||
MM398 | Metallised | 85 | ++ | 0.3 | 50 | ||
QFM | White / Metallised | 85 | + | 0.2 | 30 | ||
Extrusion coated PE |
ENHANCED SEAL | UBWES | White / Metallised | 80 | +++ | 0.1 | 0.1 |
PE & CPP | ULTRA SEAL | MB344US | Clear | 95 | ++++ | ** | ** |
Footnotes: * There are different minimum seal strength thresholds for various technologies ** WVTR dependent on base film thickness;
In summary, PP mono-material solutions from Jindal Films provide numerous OPP film options – printable, barrier and heat sealable – to help brand-owners and converters launch their multi-material flexible packaging laminates on a journey towards a more sustainable future, feeding the PP recycling streams being progressively implemented across Europe.