Decoral System. Bologna 19-05-2011 - Aluminium 2000
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Transcript of Decoral System. Bologna 19-05-2011 - Aluminium 2000
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METAL DECORATION BY DECORAL® TECHNOLOGY SUPERDURABLE WOOD GRAIN
Alessandro Canevarolo
Bologna, 19 maggio 2011
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Wood Grain - Comparative test
Sublimation Process (Heat transfer)on coated metal surface
Wood Effect
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200°C
Aluminum
Powder coating layer
Sublimatic ink support
Sublimatic ink (dyes)
Sublimation Process (Heat Transfer)
Phisical process by which some substances at given temperature move directly from solid to gas status.
Aluminium
Powder coating layer
Sublimatic ink substrate
Printed Sublimatic ink (dyes)
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Used Raw Materials
- Polyurethane Powder Coating
- Heat Transfer Film (printed with sublimatic Ink)
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High print definition
Sublimation Process Advantage
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Sublimation Process Advantage
Suitable to be applied to different shapes
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Wood Grain Comparative tests
Wood Grain on Superdurable PUR Powder
Wood Grain on Standard PUR Powder
vs
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Series DS 04XX S & Series DS 07XX S
New formulation of powder coating including:
- special resins
- special combination of UV inibhitors
Superdurable Polyurethane Powder
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- Powder coating, carried out in compliance with TDS temperature and time (20'@ 200°C)
Samples Preparation
- Decoration according to sublimatic film TDS (peak temperature 200°C)
Powder Coating + Decoral Process
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- A1, B1, �, N1 serie made by Superdurable powdercoating (green line)
Obtained Samples
- A2, B2, �, N2 serie made by Standard powdercoating (red line)
Two series of samples
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Tests
Accelerated Weathering Test � AWT
- Decoral Laboratory- Controlled and repeatable- simulation of some natural exposure factor- 3000 hours duration
Natural Exposure Test � NET
- South Florida (AWSG)- Real enviroment- Unpredictable test- 12 months exposure
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ISO 11304
- irradiation, 550 ± 20 W / m 2 (290-800 nm)- black panel temperature, 65 ± 5 ° C- wet cycle 18 minutes- dry cycle 102 minutes.
Accelerated Weathering Test
Decoral Laboratory
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Accelerated Weathering Test
Evaluated Parameter
every 100 hours until 3000 hours
- Residual gloss % (60° angle, ISO 2813)
- Colour Variation (ΔE CIELAB, ISO 7724/3)
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AWT � Residual Gloss%
Remarks: 3000 hours are 3 times minimum required by international specification
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AWT � Residual Gloss%
Remarks: 3000 hours are 3 times minimum required by international specification
- Residual gloss % of Superdurable wood grain > 80% @ 3000 Hours
Superdurable serie (DS 07XX S)
- Residual gloss % of Standard wood grain > 50% @ 1000 Hours
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AWT � Colour Variation
Remarks: 3000 hours are 3 times minimum required by international specification
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AWT � Colour Variation
Remarks: 3000 hours are 3 times minimum required by international specification
- ΔE of Superdurable wood grain < 2 @ 3000 Hours (all pattern!)
Superdurable series (DS 07XX S)
- ΔE of Standard wood grain < 2 @ 1000 Hours
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AWT � Tested Samples � 3000 h
Remarks: 3000 hours are 3 times minimum required by international specification
TestedSamples
D1(superdurable wood grain)
D2(standard wood grain)
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AWT � Tested Samples � 3000 h
Remarks: 3000 hours are 3 times minimum required by international specification
TestedSamples
I1(superdurable wood grain)
I2(standard wood grain)
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Natural Exposure Test
ATLAS
Weathering Service Site
ISO 2813
- - south Florida site- - 12 months exposure - facing south - tilt angle 5° - open backing
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Natural Exposure Test � 12 months
Evaluated Parameters
(after 12 months exposure & cleaning process)
- Residual gloss % (60° angle, ISO 2813)
- Colour Variation (ΔE CIELAB, ISO 7724/3)
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NET � Residual Gloss%
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NET � Residual Gloss%
- Residual gloss % of Superdurable wood grain > 90% after 12 monthsexposure
- Residual gloss % of Standard wood grain > 50% after 12 monthsexposure
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NET � Colour Variation
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NET � Colour Variation
- ΔE of Superdurable wood grain < 2 after 12 months exposure (allpattern!)
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NET � Exposed Samples � 12 months
Unexposedpart
D1(superdurable wood grain)
D2(standard wood grain)
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NET � Exposed Samples � 12 months
Unexposedpart
I1(superdurable wood grain)
I2(standard wood grain)
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Conclusions
- Excellent results are linked to a new formulation experience
- Superdurable series (DS 04XX S & DS 07XX S) levels up the weathering resistance
- Performance improvement for a wide rangeof finishing (different wood grain)
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Future
- Expand the exisiting market for heat-transfer technology
- Open new fields of application
- Complying with more strict requirements