Digital printing and corrugated sheets Troy Hewgley, DS Smith Regional Sales and Business Development

oUTLINE Background; The Digital Challenge Important Paper Properties Important Liner Properties Flute “Generalities” Protective Packaging and Shipment The Corrugated Sheet Challenge Environment

Perception

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The digital Challenge THE PRESS HAS ARRIVED!!! The clock is running… Order Entry Process? What Changes Need To Be Made To Our Manufacturing Process? How Do We Handle Reduced Customer Turn Times? Sales Compensation Strategy? Designer And Sales Team Education? Manufacturer Mx Response Time? How Do We Ship Small Quantities Cost Effectively? How To Effectively Source Reliable Corrugated Sheets?

Impact of Relative Humidity Important paper properties Impact of Relative Humidity Corrugated Exhibits Hydrophobic and Hydrophilic Properties - Hydrophilic attracts water - Hydrophobic repels water Dependent on Relative Humidity(RH) - At time of manufacture - Storage conditions at customer

Important paper properties Amorphous Solid Amorphous Solid- Assumes shape of surroundings Moving Corrugated Sheets with Forklift - Raising off Ground without Pallet- Imparts Permanent Warp - Lift and Slide For Better Results Irregular Surface under Corrugated Sheets - Imparts Permanent Warp - For example, dunnage, sheet overhang from pallet edge -

Important liner properties Brightness Brightness Immediately Apparent to Human Eye Numerically Quantifiable Metric (my opinion) Two Common Test Standards - GE Brightness - ISO 2470-2:2008 No Correlation Between Tests Brightness Of Sheets Fades Over Time

Important liner properties Brightness Liner   Basis Wt (lbs) GE Brightness Notes Metsa Pro WKL (KemiArt Lite+) 41* 84 “Cadillac” of Industry; widely available; dependable DSS 90Brite 36 92 “Tesla” ; highest GE Brightest; lightweight GP Bleach 42* 82 Decreasing Popularity; uncommon in our digital experience DSS MW+ 78.5 Higher brightness and holdout over traditional MW WR MW 36 or 42 72.5 Cost effective; uncommon on print surface; great inside liner solution

Important liner properties Holdout He (or She) who Wins…Keeps the Ink On Sheet Surface and Still Dries without Smear Coated vs Uncoated

Important liner properties Whiteness Whiteness Value increases as paper becomes bluer and redder Limited Usefulness for Comparison (my opinion) For Excellent Explanation see internet: “Brightness-Whiteness-CRABLE-ENGINEERING-LLC”

Important liner properties Basis Weight Conflicting goals - Lighter print-surface liner yields cost savings - Heavier print-surface liner, forgiving manufacturing imperfections Recommendation- price different white liners and liner weights options

Factoid: F-flute is the thickness of 10 human hairs Flute “GENERALITIES” Larger Flute = Less Warp and Better Repeatability Larger Flute = More Structural Strength Smaller Flute = Superior Print Surface Smaller Flute = Superior for Small Boxes Note: EB Doublewall= C-flute Strength + E-flute Print Surface Flute Calipers B= .117 inches (75% thickness of C-flute) C= .158 inches E= .063 inches (40 % thickness of C-flute) F= .032 inches (20% thickness of C-flute) Factoid: F-flute is the thickness of 10 human hairs

Protective packaging Oversized Pallets,Cornerboards and Corrugated Wrapping Minimizes Shipping Damage & Provides Environmental Protection - Enroute - At Plant

ltl SHIPMENT (Less than truckload) Expect Delivery Delays 10% of LTL Deliveries Will Have Damage Consider Truckload - 25% Cost Rule Nobody will Notice

Corrugated sheet challenge Managing Warp Select Best Flute Profile for Application - Largest Flute - EB Double wall Manage Storage Conditions Pick A Supplier That Understands Digital

The environment Where Will You Store Corrugated Sheets? Storage Recommendations - Avoid Receiving Area; Prevent Humidity/Moisture Related Warp - Avoid Direct Contact with Concrete Floor - Avoid Uneven Surfaces - Avoid High Traffic Corners - Avoid Frequently Movements

QUESTIONS?