Engineering Fundamentals of Ring Spinning/Twisting, Over-end Unwinding and Two-for-One Twisting in Textile Processes

Foreword
Preface
Acknowledgments
Nomenclature

Chapter 1. Description of Processes Analyzed
1.1. Introduction
1.2. Ring Spinning
1.3. Cap Spinning
1.4. Over-end Unwinding
1.5. Plied Yarns
1.6. Two-for-One Twisting
1.7. Appendix 1: A Brief Look at the Short-staple Yarn Manufacturing System
1.8. Appendix 2: Global Capacity of Ring-spinning Spindles versus Open-end-spinning Spindles
1.9. Appendix 3: The Flyer Action

Chapter 2. Review of Previous Investigations
2.1. Introduction
2.2. Epoch 1 (1880–1950)
2.3. Epoch 2 (1950–1977)
2.4. Epoch 3 (1978 to the Present)

Chapter 3. Equations of Motion for the Balloon
3.1. Introduction
3.2. The Equations of Motion
3.3. Nondimensionalization and Dimensional Analysis
3.4. Solving the Stationary Balloon Equations
3.5. Experimental Validation of the Elastic Yarn Model
3.6. Stability Analysis of the Stationary Balloons
3.7. Appendix A: Air Drag on a Translating and Whirling Yarn

Chapter 4. Ring Spinning: Analytical Model
4.1. Introduction
4.2. Ring Spinning: The Free Balloon Model
4.3. Balloon Control Ring
4.4. Other Influences
4.5. Concluding Remarks

Chapter 5. The Effect of Twist in a Ballooning Yarn
5.1. Introduction
5.2. Mathematical Formulation
5.3. Conclusion

Chapter 6. Over-End Unwinding: Cylindrical Package
6.1. Introduction
6.2. Equations of Motion: End Regions Excluded
6.3. Nondimensionalization of the Equations
6.4. Concluding Remarks
6.5. Appendix-—Kinematics of the Unwind Point a’ la Padfield

Chapter 7. The Two-for-One Twister
7.1. Introduction
7.2. The Equations of Motion (EoM) of the Yarn in the Balloon
7.3. EoM of Yarn in Contact with the Control Cylinder
7.4. Conclusions

Index
In Memorium: W. Barrie Fraser
In Memorium: Mishu I. Zeidman