Ink as a Substrate in Flexible Packaging Laminations Flexible Packaging Laminations Presented by:...
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Transcript of Ink as a Substrate in Flexible Packaging Laminations Flexible Packaging Laminations Presented by:...
Ink as a SubstrateInk as a Substrateinin
Flexible Packaging LaminationsFlexible Packaging Laminations
Presented by:Presented by:
Bruce FosterBruce Foster
Mica Mica CorporationCorporation
IOPP Technical Bag CommitteeIOPP Technical Bag CommitteeWinter 2013 MeetingWinter 2013 Meeting
Better Understand Effects of:Better Understand Effects of:Ink “Type” (polymer base)Ink “Type” (polymer base)
Ink ColorInk Color
On Adhesion in On Adhesion in Extrusion LaminationsExtrusion Laminations
(with (with PRIMERSPRIMERS, of course!), of course!)
12-micron polyester film – 1-side 12-micron polyester film – 1-side factory treatedfactory treated
Inks – solvent-based, toluene-Inks – solvent-based, toluene-freefree
3 chemistries – 3 chemistries –
Vinyl-modified Vinyl-modified polyurethanepolyurethane
Modified-polyamideModified-polyamide
Modified-polyurethaneModified-polyurethane
12-micron polyester film – 1-side 12-micron polyester film – 1-side factory treatedfactory treated
Inks – 3 chemistries Inks – 3 chemistries
Primers – Water-BasedPrimers – Water-Based
2 chemistries – 2 chemistries –
Polyethylene-iminePolyethylene-imine
PolyurethanePolyurethane
Lab Experiments – Set ILab Experiments – Set I1.1. Ink draw-downs on polyester Ink draw-downs on polyester
film:film:
Different types & colorsDifferent types & colors2.2. Prime over “printed” samples:Prime over “printed” samples:
Polyethylene-imine based Polyethylene-imine based extrusion primerextrusion primer
3.3. Extrusion-coat on lab pilot Extrusion-coat on lab pilot line:line:
High-temperature High-temperature polyethylenepolyethylene
12-micron polyester film (corona-treated)ink
40-micron polyethylene @ high temperature primer
Lab Experiments – Set ILab Experiments – Set I
Bond0.04 white 0.04 black 0.04 white over black 0.08 white 0.08 black 0.08 white over black0
10
20
30
40
50
60
70
80
90
Bon
d, g
/25m
m
Primer dry gsm, ink color
Polyethylene-Imime Primerover Modified Polyurethane Inks
12-micron polyester film (corona-treated)Ink lift-off
Polyethylene-imine Primer over Vinyl-Modifed Polyurethane Inks
0
50
100
150
200
250
0.04 0.04 0.04 0.08 0.08 0.08
Primer gsm / Ink Color
Bo
nd
, g/2
5mm
All Samples - Ink lift-off
Polyethylene-imine Primerover Modified Polyamide Inks
0
100
200
300
400
500
600
700
800
900
white
white +
blu
e
white+b
lue+
mag
enta
white
white +
blu
e
white+b
lue+
mag
enta
0.04 0.04 0.04 0.08 0.08 0.08
Primer gsm / Ink Color
Bo
nd
, g/2
5mm
Ink lift-off
Ink Splits
Lab Experiments – Set ILab Experiments – Set I1.1. Modified Polyamide Inks had Modified Polyamide Inks had
best adhesion to polyester best adhesion to polyester filmfilm
2.2. Polyethylene-imine primer Polyethylene-imine primer works with all inks testedworks with all inks tested
3. White inks had lowest 3. White inks had lowest adhesion to filmsadhesion to films
Lab Experiments – Set IILab Experiments – Set II1.1. Pre-prime polyester filmPre-prime polyester film
Both imine and urethane Both imine and urethane primersprimers
2.2. Print over primed samples:Print over primed samples: Vinyl-modified polyurethane Vinyl-modified polyurethane
inksinks
4. Extrusion-coat on lab pilot line:4. Extrusion-coat on lab pilot line: High-temperature High-temperature
polyethylenepolyethylene
3. Prime over printed samples:3. Prime over printed samples: Both imine and urethane Both imine and urethane
primersprimers
12-micron polyester film (corona-treated)
Vinyl-modified polyurethane inks
40-micron polyethylene @ high temperature primer
Lab Experiments – Set IILab Experiments – Set II
primer
Results – Set IIaResults – Set IIa
ImineImine WhiteWhite ImineImine >500>500 InseparableInseparable
ImineImine BlueBlue ImineImine ~400~400 Film TearFilm Tear
ImineImine White White on blueon blue
ImineImine 9393 Ink lift-offInk lift-off
ImineImine WhiteWhite UrethaneUrethane ~400~400 Film TearFilm Tear
ImineImine BlueBlue UrethaneUrethane >500>500 InseparableInseparable
ImineImine White White on blueon blue
UrethaneUrethane >500>500 InseparableInseparable
Pre-Pre-PrimerPrimer
InkInkColorColor
Post-Post-PrimerPrimer
Bonds,Bonds,g/25mmg/25mm
Failure ModeFailure Mode
Results – Set IIbResults – Set IIb
UrethaneUrethane WhiteWhite ImineImine ~200~200 Ink lift-offInk lift-off
UrethaneUrethane BlueBlue ImineImine >500>500 InseparableInseparable
UrethaneUrethane White White on blueon blue
ImineImine >500>500 InseparableInseparable
UrethaneUrethane WhiteWhite UrethaneUrethane ~170~170 Ink lift-offInk lift-off
UrethaneUrethane BlueBlue UrethaneUrethane >500>500 InseparableInseparable
UrethaneUrethane White White on blueon blue
UrethaneUrethane >500>500 InseparableInseparable
Pre-PrimerPre-Primer InkInkColorColor
Post-Post-PrimerPrimer
Bonds,Bonds,g/25mmg/25mm
Failure ModeFailure Mode
Lab Experiments – Set IILab Experiments – Set II1.1. Pre-priming works for vinyl-Pre-priming works for vinyl-
modifed polyurethane inks! modifed polyurethane inks!
2.2. Both primer chemistries gave Both primer chemistries gave mostly good resultsmostly good results
3. Polyethylene-imine pre-primer 3. Polyethylene-imine pre-primer was best for white ink was best for white ink adhesionadhesion
Lab Experiments – Set ILab Experiments – Set I
1.1. Modified Polyamide Inks had Modified Polyamide Inks had best adhesion to polyester best adhesion to polyester filmfilm
2.2. Polyethylene-imine primer Polyethylene-imine primer works with all inks testedworks with all inks tested
3. White inks had lowest 3. White inks had lowest adhesion to filmsadhesion to films
P.T. Colorpak Indonesia, Tbk.P.T. Colorpak Indonesia, Tbk.
Jonida Gjika – Lab ChemistJonida Gjika – Lab Chemist
Mica CorporationMica Corporation
TAPPI PLACETAPPI PLACE
Bruce FosterBruce [email protected]@mica-corp.com
Thanks, for your Thanks, for your attention!attention!