SICURA NUTRIFLEX LEDTec

September 2016 THE breakthrough in the UV LED technology for Narrow Web

Agenda

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Trends in UV curing systems

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Rising cost of energy• Development of more energy-efficient UV dryers

Increasing awareness of the issue related to the environment & safety• Ozone free systems, UV lamps with higher life time

Continuous improvement of quality of printed job: • Thin plastic substrates printing (registration),

• Consistency vs time of emitted UV energy (food packaging)

• In line varnishing (mat/gloss, drip off)

• In line post printing operations (folding, dying, gluing,…)

UV LED (Light Emitting Diodes) : Principles & Features

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LEDs are based semiconductor material emitting a light spectrum when submitted to an electric current.

Unlike conventional UV mercury (tubes) lamps, UV dryers consist of many LED diodes arranged in several lines and across the width

This principle consumes less energy and generates very little heat (IR).

Low temperature interesting for printing thin plastic substrates (eg Shrinkable sleeves, IML)LED emission UV spectrum is monochromatic (generally 385 or 395 nm) in contrast to the conventional UV Mercury lamps : no UV-B and UV-C

LED does not emit the in of short wavelengths: no ozone formation (no need for extraction)

Diodes have a very high life time. No waiting time to ignition (immediately operational after ignition).

- Standard UV Lamp

- UV LED

Rel

ativ

e in

tens

ity %

Wavelength (nm)

Standard UV / LED : Elements of comparison

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Standard UV LED UV

Lamp Type Mercury Diodes

Mercury content Yes No

Ozone formation Yes No

Heat generation 35-45° C Room T° + 5° C

Typical shelf life 1000-2000 h > 20 000h

Installation costs Standard Higher *

Energy consumption Standard Lower *

Inks cost Standard Higher *

UV LED advantages

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No Mercury filled bulbs No IR emissions (thermo sensitive substrates)

Potential energy saving

Consistency of UV power over time

High life time (>/20000h vs 1000-2000h for standard UV)

Compact

Easy to handle

No exhaust system required (no ozone production)

Full power available immediately after switching on

No shutter required on the presses

Printing with SICURA NUTRIFLEX LEDTec : Better & Safer

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… With outstanding performances High reactivity inks UV flexo inks

High adhesion levels

High image definition : low dot gain, sharp dots, clean micro texts.

High colour strength Outstanding flow

• Food applications: SICURA NUTRIFLEX LEDTec

SICURA NUTRIFLEX LED Tec is a low-migration UV Flexo series especially developed for food packaging applications and other sensible applications (cosmetics, pharmaceuticals) with no direct contact between the printed image and the content of the packaging.

A State of the art formulation…Low Migration Ink, BPA free series, compliant with all relevant regulations

Developed and manufactured following a strict and dedicated process

SICURA NUTRIFLEX LED Tec – Compliance that convinces

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Regulatory Compliance

EuPIAGuidelines

Regulation (EC) N° 2023/2006Good ManufacturingPractices

SWISS ordinance

817.023.21²

Plastics Regulation

(EU) N° 10/2011

Nestlé Guidance Note on Packaging

Inks (August 2016)

Regulation (EC) N° 1935/2004¹

French Law 2012-1442 of

24th Dec. 2012

1 Regulatory Compliance

French Law 2012-1442 (24/12/2012)

Printing inks & varnishes formulated with raw materials containing Bisphenol A (BPA) applied to the outside surface of a food packaging are affected by the application of the French law on BPA.

By consequence, for all products used in applications without functional barrier, all RM based on BPA have to be substituted.

Nestlé Guidance Note on Packaging Inks (Version: August 2016)

Ban of BPA based raw material status : French market & Nestlé applications

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• Conclusion:• For the French packaging market or for Nestlé applications, food packaging without any functional

barrier, should be printed with UV inks free of raw materials based on BPA.

‘’General exclusions for ink formulations:This Note has negative lists of components. The components below are allowed by the SwissOrdinance, but are forbidden for Nestlé ink formulations due to quality and safety concerns…… Bisphenol A (BPA) and materials manufactured from or incorporating BPA in reacted form aspart of the chemical structure must not be used.’’

SICURA NUTRIFLEX LEDTec– Technology that convinces

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2 State of the art composition:

• Use of high molecular weight & high functionality monomers

• Use High molecular weight Photoinitiators, supported with toxicological data

• Use of High purities oligomers & monomers (Tin free, nonylphenol free,…)

• Calibration of MW distribution : minimisation of content of low MW fractions

P-P

P. + .Ph .P\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/P.

P\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/P h

MW

%

SICURA NUTRIFLEX LEDTec – Technology that convinces

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Excellent printability

High curing speed

Outstanding adhesion

Full range of complementary

bases

3 Printability

Excellent ink flow

SICURA NUTRIFLEX LEDTec– A process development that convinces

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Developed and manufactured following a strict and dedicated process4

Manufactured in a our production facility of Aarberg (Switzerland) dedicated to UV inks & varnishes for packaging printingGood Manufacturing Practices (GMP) in place*ISO 9001:2008 and ISO 14001:2004 certifiedExperienced Management and Staff

Checklist for Approval Exclusion criteria

(e.g., carcinogenics, mutagenics, reprotoxics, toxics)

Defined purity standards and full understanding on existing impurities

Compliance with chemical registration

Full understanding of chemical composition for food packaging

Our raw material introduction process excludes unwanted substances

Sample request Lab tests

Global HSE

approval A risk assessment of supplied raw

materials is performed to determine potential non consistencies of raw materials with SIEGWERK‘s specifications

Organoleptic properties checked thanks to two sensory panels, on routine basis but also during the product development

Checking of cross-contamination risks during production through appropriate protocol of analysis

New raw material

Businessapproval

Strongly supported by a skilled and well equipped analytical lab

Manufactured in a Dedicated Production Site

Sicura Nutriflex LEDTec - Gallery

High image definitionHigh curing speed

Excellent AdhesionHigh flexibility

Excellent AdhesionHigh image definition

A versatile product than can be used on all many different applications

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Thanks for your attention!

Contact person:

Marc LarvorHead of Technical MarketingBusiness Unit Sheetfed/Narrow WebMobile: +33 (0)607325351Mail: marc.larvor@siegwerk.com

www.siegwerk.com