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Fundamentals of Spun Yarn Technology

Fundamentals of Spun Yarn Technology by Carl A. Lawrence
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The Fundamentals of Yarns and Yarn Production
Early History and Development
Yarn Classification and Structure
Yarn Count Systems
Twist and Twist Factor
Fibre Parallelism
Principles of Yarn Production
Raw Materials

Materials Preparation - Stage I: Opening, Cleaning and Scouring
Mechanical Opening and Cleaning
Striking from a Bestseller
Beater and Feed Roller
Utilisation of Air Currents
Estimation of the Effectiveness of Opening and Cleaning Systems
Wool Scouring
Wool Carbonizing
Tuft Blending
Opening, Cleaning and Blending Sequence

Materials Preparation - Stage II: The Fundamentals of the Carding Process
The Revolving Flat Card
Worsted and Woollen Cards
Sliver Quality

Carding Theory
Opening of Fibre Mass
Carding Actions
Web Formation and Fibre Configuration
Fibre Breakage

Materials Preparation - Stage III: Drawing, Combing, Tow-Top Conversion, Roving Production
Conversion of Tow-to-Sliver
Roving Production
Environmental Processing Conditions

Yarn Formation Structure and Properties
Spinning Systems
Ring and Traveller Spinning Systems
Open-End Spinning Systems
Self Twist Spinning System
Wrap Spinning Systems
Twistless Spinning Systems
Doubling Principles
Economic Considerations

The Principles of Package Winding
Basic Principles
Types of Winding Machines
Random Wound Cones
Precision Open-Wound and Close-Wound Packages
Yarn Tensioning and Tension Control
Yarn Clearing
Knotting and Splicing
Yarn Waxing

Yarn Tensions and Balloon Geometry in Ring Spinning and Winding
Circularly-Polarised Standing Waves
Yarn Tensions in Ring Spinning
Balloon Profiles in Ring Spinning
Tensions and Balloon Profiles in the Winding Process

Fancy Yarn Production
Classification of Fancy Yarns
Basic Principles
Production Methods
Design and Construction of the Basic Profiles
Analysis of Fancy Yarns
CRC Press; March 2003
645 pages; ISBN 9780203009581
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Title: Fundamentals of Spun Yarn Technology
Author: Carl A. Lawrence
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