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

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

3. Perception

5. Slide 3

6. 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?

7. 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

8. 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 -

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

10. 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

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

12. 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”

13. 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

14. 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= inches (20% thickness of C-flute)
Factoid: F-flute is the thickness of 10 human hairs

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

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

17. 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

18. 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

19. QUESTIONS?