Lars Skade in various fields (R&D, support, sales, etc) - - PowerPoint PPT Presentation

Lars Skade

• Electronics Engineer + MBA
• Runs the European Operations that

handles territories including Europe, Russia, Africa and South/Central America

• 20 years experience in the industry

in various fields (R&D, support, sales, etc)

Speaker

OPTIMISING THE UV DRYING PROCESS:

Lars Skade

lars.skade@innosen.com

INTERPRETING LOGGER DATA

AGENDA

• General About Curing
• Factors Affecting Curing
• The UV Curing Process
• UV Ovens Main Components
• How To Improve the UV Curing Process
• Interpreting UV Logger Readings
• Conclusion
• Other Products Helping In Curing Process

UV Electron Beam

Thermal Radiation

Curing

Thermal vs. UV Curing

Liquid layer Solid layer

Image Source: http://www.honleuv.com/news/2014/5/28/fundamental-principles-of-uv-reactive-manufacturing-processe.html

Less pollution Energy efficient Very fast curing

UV Curing Advantages

Image Source: http://www.buygreen.com/collections/no-and-low-voc-volatile-organic-compounds http://www.johnlewis.com/inspiration-and-advice/clear-information-about-our-products https://orders.idealtaxsolution.com/

• 1. UV absorption vs. Wavelength
• 2. Penetration vs. Wavelength
• 3. Emission spectrum
• 4. Color / Pigments
• 5. Layer thickness
• 6. Substrate reflection

Factors Affecting Curing

v

Factors Affecting Curing: UV Absorption vs. Wavelength

Image Source: http://www.honleuv.com/news/2014/5/28/fundamental-principles-of-uv-reactive-manufacturing-processe.html

Factors Affecting Curing: Penetration Depth

image source: http://cooking.stackexchange.com/questions/54802/can-spaghetti-noodles-replace-lo-mein-noodles

UV Curing Process

All lacquer needs to be excited at the same time Not enough light … nothing will happen!

UV Curing Process

UV light UV light

High Activation Energy

energy

UV Curing Process

Light/Photons

400W per inch

Photons

Energy [J] = [W] x sec Power [W]

• Logger looks at total of photons
• Longer exposure -> higher count
• Logger looks at photons at any instance
• Number of photons per second per cm2

Energy and Power

UV Logger

Image source:http://www.cureuv.com/types-of-reflector-configurations.html

UV Ovens – Main Components

FOCUSED LIGHT UV Lamp Reflector Focal Point Maximum Curing Power UV Curable Material

Image source:http://www.cureuv.com/types-of-reflector-configurations.html

OUT OF FOCUS UV Lamp Reflector UV Curable Material

UV Ovens – Main Components

How To Improve Your Curing Process?

You need a tool to show you what happens inside your oven!

Are All Loggers A Useful Tool?

[W] [J]

You need information about:

Power and Energy Individual Lamps Graphical Data

Most loggers:

+ = X

Only give a total for the whole oven Graphical Data

Integrated UV meters

• Stationary
• No dynamic data
• Far from sheet

What Does Innosen Offer?

UV LOGGER IS310 MULTIBAND UV LOGGER IS315

• Reading of Power in Watts [W] and Energy in Joules [J]
• Readings for each individual lamp in various ovens
• FREE data analysis software included
• IS310 measures combined UVA+B+C
• IS315 measures UVA, UVB and UVC separately
• Small as a credit card
• IS310 less than 6mm thick, IS315 less than 7mm thick
• Fast logging
• Very low cost, yet with features similar to the most

expensive loggers on the market

• Indication of percentage degradation per lamp

What Does Innosen Offer?

Readings For Individual Lamps

LAMP

1 2 3

=

Same Peak = Same Power Same Area = Same Energy True?

Why Is This Important?

• Vertical and horizontal focus
• Reflector quality (dirty reflectors)
• Lamp current / aging

Graphical Data

Why Is This Important?

By analysing graphs you can much easier

• ptimise your curing process!

It gives you info on:

Other loggers 20mm thick!

Less Than 6mm Thick!

Why Is This Important?

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It will enter even the smallest openings, i.e. you don’t get toasted!

20mm Light intensity vs. Distance: P = 1 / distance2

(very approximate)

Data Analysis Examples

Threshold LAMP

1 2 3

Three identical peaks

• Symmetrical
• Same height
• Narrow and steep

Threshold Vertical Focus Issue LAMP

1 2 3

Data Analysis Examples

Dirty Reflector or Old Lamp Threshold LAMP

1 2 3

Data Analysis Examples

Threshold Wrong Reflector/Lamp Distance or Sagging Lamp LAMP

1 2 3

Data Analysis Examples

Centering Issue Threshold LAMP

1 2 3

Data Analysis Examples

Full Analysis: Left – Centre - Right

Left Center Right

Threshold

Lamps 1 2 3

Threshold Threshold

Left Center Right

Lamps 3 2 1

Data Analysis Examples

Sagging Lamp 2

Left Center Right

Threshold

Lamps 1 2 3

Threshold Threshold

Data Analysis Examples

Sides of Lamp 2 Have Gone Black

Threshold

Lamps

Threshold Threshold

Left Center Right 1 2 3

Data Analysis Examples

Threshold

Lamps

Threshold Threshold

Reflector/Lamp 2 Not Parallel To Sheet

Left Center Right 1 2 3

Data Analysis Examples

The ideal logger should have the following qualities:

Help save energy - environment- friendly Fast enough to capture the power peaks Capable of providing data for individual lamps Able to pass through the protection slots Able to provide graphical data that helps you identify what needs to be corrected in your

• ven

image source: http://www.johnlewis.com/inspiration-and-advice/clear-information-about-our-products http://www.blackstonediscovery.com/e-discovery/early-data-analysis/

Conclusion

• Quick, accurate and reliable readings
• Improved efficiency of curing process
• Reduces lamp replacement costs
• Minimize (unplanned) production downtime
• Low-cost device
• Easy to use interface
• FREE data analysis software included

Benefits of using Innosen’ IS310 and IS315 UV loggers:

Conclusion

• Save on electricity costs
• Achieve longer lamp life
• Improve production quality
• Help save the environment

Image Source: http://www.buygreen.com http://www.johnlewis.com http://www.1001freedownloads.com

By Using A Proper UV Logger You Can:

Other Products Helping In Curing Process

IS231 Double Sheet/End Detector

A fully automatic “no-touch” sensor that calibrates automatically

True “Fit and Forget” No operator intervention, no risk of wrong settings Big thickness range (0.12-1.5mm) Works on both aluminium and tinplate For use on coating and printing lines, slitters and presses etc. IT DOESN’T HELP YOUR OVEN CURES WELL…

• IF SHEETS ARE

UNCOATED!

IT DOESN’T HELP YOUR OVEN CURES WELL…

• IF PART OF A SHEET

WAS NOT COATED!

IS651 Missing Lacquer Detector

Protects machinery and product against problems caused by missing lacquer on sheets

No need for operator adjustment Self-adjusting and Self-calibrating Works with all white, coloured AND CLEAR TRANSPARENT lacquers Protects your equipment and your reputation from expensive quality issues!

Other Products Helping In Curing Process

IS415 Sheet Skew Measurement System

Protects against poorly placed coating by detecting skewed (rotated) sheets at the coater/printer

Full protection from skewed sheets, even at high line speed Faster production rates — without the risk of extra scrap Provides useful statistical data Add-on options from translation (lateral displacement) and length registration (sheet feed – roller timing) IT DOESN’T HELP YOUR OVEN CURES WELL…

• IF A SHEET IS

SKEWED AND LATER WELDED WHERE THERE IS LACQUER!

Other Products Helping In Curing Process

Experience on modern high-speed coating lines shows that up to 1 sheet in every 2000 will skew or misalign badly as it goes through the rollers, no matter how well you control your process!

IS610 Plain Margin Inspector

Reliably detects contaminants in the margin

Detects any type of lacquer including clear lacquers Detects presence of other contaminants like grease, rust, water marks etc Reduce costly customer complaints Eliminate quality issues Reduce production downtime from broken weld wire / weld rolls Improve weld quality IT DOESN’T HELP YOUR OVEN CURES WELL…

• IF MARGINS ARE

CONTAMINATED BY LACQUER!

Other Products Helping In Curing Process

Easy to use - Highly accurate measurements – World class R&R Wide range of probes for measuring coatings thickness / film weight on flat sheets, cans, aerosols, aluminium tubes, etc. IS9650 IS9560 SI9600 SI9507+

Coating Thickness Measurement

SI9100 IS9015 IS9019TR/IS9020TMR IS9031 IS9021

Enamel Rating

IS9017 IS9029 IS9024 IS9030

Enamel Rating

IS621/IS631 Inverted Blank Detectors

RELIABLY DETECTS AN INVERTED 3-PIECE CAN BODY WITH LACQUER ON THE WRONG SIDE

IS430 Sheet Translation Measurement

ADDS PROTECTION AGAINST LATERALLY DISPLACED COATING BY DETECTING SHEET MISALIGNMENT AT THE COATER

IS450 Sheet Registration Measurement

ADDS PROTECTION AGAINST POOR SHEET REGISTRATION BY WARNING OF SHEET MISFEEDS AT THE COATER

We Also Offer Many Other Products for Canmaking

IS240 Tab Verifier

COMPACT SYSTEM FOR DOUBLE SHELL AND MISSING TAB DETECTION ON THE CONVERSION PRESS

IS691 Coil Lacquer Presence Detector

PREVENTS TOOL DAMAGE ON CONTINUOUS COIL FED PRESSES WITH ON-LINE PROTECTION AGAINST UNLACQUERED AREAS ON PRE-COATED COIL STOCK

IS1270 Coil Translation Measurement System

PREVENTS CLIPPED CURLS AT THE SOURCE OF THE PROBLEM

IS1260 On-line Sheet Length Measurement System

GIVE PRECISE MEASUREMENT OF CUT SHEET LENGTH

Coil line products

For more information on UV curing or any

• ther inquiry please come see us at the

exhibition area WE ARE HERE TO HELP YOU!

Innosen Europe SLU Romà Piera i Arcal, 8 08330 Premià de Mar (Barcelona) Spain www.innosen.com info@innosen.com