1. Presentation Slide Number 1 29/06/2016 UV LED technology: The latest ‘state of the art’ for label printing

2. Presentation Slide Number 2 29/06/2016 About us

3. Presentation Slide Number 3 29/06/2016 UV LED technology: The latest ‘state of the art’ for label printing Agenda  How UV LEDs work  Comparing UV LED with traditional UV Arc technology  The status of UV LED compatible flexo inks  UV LED in the digital label sector  Hybrid solutions (mixed LED & Arc systems)  Questions

4. Presentation Slide Number 4 29/06/2016 UV LED Chip Manufacture Silicon ingots (8” and 12” DIA) grown in reactors Ingots sliced into wafers (less than 100 microns) Wafers further processed via deposition, diffusion, and ion implantation as well as photo-resist etching Chips laser cut from processed wafers

5. Presentation Slide Number 5 29/06/2016 UV LED Packaging - Module / Array

6. Presentation Slide Number 6 29/06/2016 Increasing Power / Reducing Footprint Denser chip packing Driving LEDs harder

7. Presentation Slide Number 7 29/06/2016 The end product…

8. Presentation Slide Number 8 29/06/2016 UV LED technology: The latest ‘state of the art’ for label printing Agenda  How UV LEDs work  Comparing UV LED with traditional UV Arc technology  The status of UV LED compatible flexo inks  UV LED in the digital label sector  Hybrid solutions (mixed LED & Arc systems)  Questions

9. Presentation Slide Number 9 29/06/2016 Conventional UV Lamps Technology Arc, or electrode lamps generate UV by energizing a pressurized quartz tube containing mercury and additives. Plasma is created when high voltage is applied to the lamp’s electrodes.

10. Presentation Slide Number 10 29/06/2016

11. Presentation Slide Number 11 29/06/2016 UV LED Discrete Wavelengths

12. Presentation Slide Number 12 29/06/2016 Why UV-LED?

13. Presentation Slide Number 13 29/06/2016 Process advantages Size Very compact No reflector needed Controlled discharge of the heat No distance between UV-system and substrate needed Retrofitting possible Non prepared machinery Can be integrated where space is tight Interdeck curing (Pinning) No exhaust ducting 100-200mm 30-50mm

14. Presentation Slide Number 14 29/06/2016 Process advantages UV-rays No harmful UV-C emmission Emitting UV-A light is not that aggressive No need for screening to protect product from UVC. Standard ray protection sufficient Because of this monochromatic light, the light shielding can be simpler

15. Presentation Slide Number 15 29/06/2016 Process advantages No Ozone O 3 UV-LED standard wavelength 365-405nm Ozone is only generated below 220nm No Ozone caused by UV-LEDs No exhaust needed No additional charcoal filter needed

16. Presentation Slide Number 16 29/06/2016 Process advantages Cold lightsource No IR emittance No direct heating of the substrate Also sensible substrates Larger scope of substrates No undershielding/ chill drum needed Easy integration in the production line

17. Presentation Slide Number 17 29/06/2016 Do you remember this?

18. Presentation Slide Number 18 29/06/2016 Process advantages Longlasting Longer lifetime than conventional UV- systems >50.000h* in comparison to 500-1.000h No down time due to lamp change *Meantime between failures

19. Presentation Slide Number 19 29/06/2016 Process advantages Modularity UV-LED modules can be configured as per request Highest variability in curing width Highest variability in curing length (Dose)

20. Presentation Slide Number 20 29/06/2016 Process advantages Energy efficiency Lower electrical energy at full cure speed Length adjustable for reduced web or image widths No Stand-by power No energy waste during stop or at intermitted operation No shutter needed No heat up / cool down period Immediate ready to use No down time caused by cool down or restart

21. Presentation Slide Number 21 29/06/2016 Environmental advantages No Mercury UV-LEDs consist of semiconductor material No heavy metal ingredients such as Mercury RoSH II compliant Reduced Energy Consumption Environmental friendly No harm for the process

22. Presentation Slide Number 22 29/06/2016 System advantages Homogeneity Constant UV output Thousands of operating hours without power loss (20.000h < 10%) No significant aging process as with conventional UV-systems Uniform UV disposition Arrangement of the UV-LED Modules guarantees uniformity across curing width UV-LED conv. UV 100% 2.000h 20.000h

23. Presentation Slide Number 23 29/06/2016 UV LED technology: The latest ‘state of the art’ for label printing Agenda  How UV LEDs work  Comparing UV LED with traditional UV Arc technology  The status of UV LED compatible flexo inks  UV LED in the digital label sector  Hybrid solutions (mixed LED & Arc systems)  Questions

24. Presentation Slide Number 24 29/06/2016 Some UV LED Flexo Ink Suppliers As well many other standard ink suppliers…

25. Presentation Slide Number 25 29/06/2016 Some UV LED Inkjet Ink Suppliers As well many other standard ink suppliers…

26. Presentation Slide Number 26 29/06/2016 UV LED technology: The latest ‘state of the art’ for label printing Agenda  How UV LEDs work  Comparing UV LED with traditional UV Arc technology  The status of UV LED compatible flexo inks  UV LED in the digital label sector  Hybrid solutions (mixed LED & Arc systems)  Questions

27. Presentation Slide Number 27 29/06/2016 Example Roll fed Flexo label printing Complete UV LED

28. Presentation Slide Number 28 29/06/2016 Example Roll fed digital label printing Complete UV LED UV-LED “pinning” UV-LED final cure

29. Presentation Slide Number 29 29/06/2016 Example Roll fed Flexo label printing Hybrid Flexo & Digital Label Press UV LED & Arc curing

30. Presentation Slide Number 30 29/06/2016 Example Roll fed digital label printing Hybrid UV UV-LED “pinning” Conventional UV-arc lamp for final cure

31. Presentation Slide Number 31 29/06/2016 Example Roll fed flexo label printing Hybrid UV LED & UV Arc UV-LED “pinning” Conventional UV-arc lamp for final cure

32. Presentation Slide Number 32 29/06/2016 Thank you Questions? Whatever your application – We have the cure! David Johnson Sales Director Integration Technology Ltd 133 Heyford Park Upper Heyford Oxon, OX25 5HA T: 01869 2333611 F: 01869 233 djohnson@uvintegration.com