Winding is the definitive guide to how winding machines work and how wound rolls are formed.

Winding covers a wide array of machines in use across all web industries, including paper, film, foil, nonwovens, textiles, and more.

Using hundreds of proven calculations, the book enables readers to understand and make the adjustments necessary to prevent roll defects and improve product quality.

Dozens of examples and hands-on applications illustrate key techniques.

Most of the book, especially the last section on measurement, is written in everyday language accessible to all responsible for machine operation and roll quality—from engineers to shop floor managers.

Features:

• Complete guide to all winder mechanical arrangements and control strategies
• Practical and theoretical know-how for predicting and avoiding roll defects
• Quantitative techniques for measuring and improving roll quality
• Accompanying CD-ROM provides computer models for many winding situations

Contents

Section I—Machines

1. Zen and the Art of Winding
2. Some Winding Defects
3. Winder Arrangements
4. Roll Geometry and Properties

Section II—Mechanics

5. Simple Material Properties
6. Introduction to Wound Roll Modeling
7. Simple 1-D Models
8. 2-D Models and Gauge Variation
9. The Effect of Nip on Wound Roll Stresses
10. The Effects of Air Entrainment
11. The Effects of Moisture and Temperature
12. Viscoelastic Behavior
13. Defects Predicted by Winding Models
14. Dynamic Behavior at High Speeds

Section III—Measurement

15. Wound Roll Sampling and Inspection
16. Measures of Roll Hardness
17. Measurements of Interlayer Pressure
18. Measurements Based on Strain
19. Density Based Measures
20. Other Wound Roll Measures
21. Wound Roll Measurement Considerations

Appendices

• Units and Conversions
• Selected Bibliography
• Selected Calculations
• Glossary

Index

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