What is DuPont Cyrel DigiFlow?

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2 What is DuPont Cyrel DigiFlow? DuPont Cyrel DigiFlow is a workflow enhancement that allows full support of solid screening programs in a standard digital workflow. The DigiFlow exposure unit creates a controlled atmosphere which allows optimum formation of screened solids while retaining all the productivity and consistency of the digital workflow. Solid screening programs will allow flexographers to achieve higher solid ink density when required with either digital Cyrel or digital Cyrel FAST plates

3 How Does DuPont Cyrel DigiFlow Work? Digital Cyrel is imaged on an Esko CDI in the normal manner. During imaging, screening patterns such as Esko Groovy screens, HD Flexo Microcell or others are applied to the plate being imaged. The DigiFlow Exposure unit incorporates a modified exposure chamber that creates a precisely controlled atmosphere during the main exposure process. This controlled atmosphere allows 1:1 reproduction between the LAMs layer and the plate, which results in hybrid digital dots and screened solids in the finished plate. The DigiFlow exposure unit is also fully supportive of the standard digital workflow. Simply return to standard operating mode for regular plates with standard digital dots DigiFlow is fully compatible with both solvent process and Cyrel FAST digital plates

4 DuPont Cyrel DigiFlow - Technical Details The Oxygen effect in the conventional Digital Workflow UV Radiation air air air air The high concentration of O 2 in air inhibits polymer cross-linking near the surface, resulting in a smoothing of the surface.

5 DuPont Cyrel DigiFlow - Technical Details The dot shape under a carefully controlled atmosphere DuPont DigiFlow Atmosphere Controlled Controlled Atmosphere UV Radiation

6 So what s the difference between DigiCorr & DigiFlow? Cyrel DigiCorr was specifically developed to reduce fluting when printing with thick digital Cyrel plates on corrugated board. The DigiCorr workflow exposes the digital Cyrel in a nearly pure nitrogen atmosphere. Standard Digital 34L/cm Cyrel DigiCorr 34L/cm This results in a hybrid dot with a broad base, steep shoulders and deep relief that is ideal for the corrugated market.

7 DigiFlow optimized for Flexible Packaging and Tag & Label The need in the flexible packaging and tag & label markets was to maintain all the benefits of the digital dot and utilize the existing workflow while incorporating the benefits of new solid screening technologies DigiFlow mixes precise amounts of oxygen and nitrogen to create a controlled exposure atmosphere that optimizes solid screening while maintaining small and consistent highlight dots. Digital Cyrel and digital Cyrel FAST plates with solid screening and exposed in DigiFlow exhibit significantly higher solid ink density with a much smoother appearance, and higher overall print contrast.

8 Digital Cyrel - Technology Evolution & Workflow Options Digital HD Flexo Solid Screening Analog Good Quality Complicated PrePress Cut-Backs required Resolution limitations Inconsistent Minimum Dotsize is the limitation Excellent Quality Simplified PrePress Expanded tone range Higher Resolution Open reverses Dot sharpening produces smaller minimum dot Bump curve is necessary Excellent Quality Fully compatible with current workflow systems Flip of a switch to change between digital and DuPont Cyrel DigiFlow workflows 1:1 reproduction Improved transition to zero Improved highlight performance compared to conventional screening Higher solid ink densities and smoother ink laydown is achieved due to a high linescreen pattern on solids Oxygen inhibition limits solid screening performance. Varies with plate type & durometer. DigiFlow HD Flexo Solid Screening Improved solid screening resolution for higher SID and very smooth ink laydown Performance improvement seen with both Groovy screens and MicroCell screening.

9 DuPont Cyrel DigiFlow is a digital workflow enhancement designed to expand the capabilities of digital Cyrel and digital Cyrel FAST. The DigiFlow exposure system enables 1:1 image reproduction when a screened solid is beneficial, and with the flip of a switch returns to the standard digital exposure workflow whenever that is the preferred solution. Features & Benefits - Optimizes performance of solid - No additional platemaking steps screening programs such as Groovy or Microcell - Maximum workflow flexibility - Improved solid ink densities - Minimal consumable cost - Increased color gamut - No environmental impact - Easily integrated into existing workflows - Compatible with all CDI Versions & HD Flexo

10 DuPont Cyrel DigiFlow - Hybrid Dot fine print elements on the plate

11 DuPont Cyrel DigiFlow - Technical Details Surface in air Corresponding LAMS mask Surface in DigiFlow

12 DuPont Cyrel DigiFlow - Technical Details Dots formed in air Dots formed in controlled DigiFlow atmosphere

13 Digital Cyrel DFH Visual Comparison Unscreened Solid Screened solid Plate exposed in DigiFlow Digital Cyrel DPR Visual Comparison Unscreened Solid Screened solid Plate exposed in DigiFlow

14 DuPont Cyrel DigiFlow fine screen elements 67DFH 70L/cm(175Lpi), 1% 67DPR 70L/cm(175Lpi) 1% Plate Surface Print

15 DuPont Cyrel DigiFlow Summary Improved solid ink densities in wide web flexible packaging 1:1 Image reproduction No additional platemaking steps Low initial investment Minimal consumable cost Easily integrated into existing workflows Maximum workflow flexibility

16 The continuing evolution of the digital Cyrel workflow

17 DuPont de Nemours (Deutschland) GmbH DuPont Electronics & Communications Hugennottenallee 173, Neu-Isenburg, Germany Copyright 2011, DuPont de Nemours (Deutschland) GmbH Published and Recorded in 2011 by: Electronics & Communications European Marketing Communications Recorded in Europe. All rights reserved worldwide. No part of this publication may be reproduced or transmitted in any form, or by any means, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system, without the prior written permission of DuPont de Nemours (Deutschland) GmbH. The DuPont Oval, DuPontTM, The miracles of sciencetm and Cyrel are registered trademarks or trademarks of DuPont or its affiliates.