Syllabus For The Subject Yarn Manufacture

YARN MANUFACTURE

1 Review of yarn production

Historical basis

Present day conditions

Future of the means of textile production

Modern production systems

References

 

2 Textile products and fiber production

Textile materials

Natural fibers

Man-made fibers

References

 

3 Common principles

Introduction

Twist insertion

Confined and non-confined systems

Twist evenness

Tension control

Drawing

Consequences of roller errors on the textile products

Control of irregular flow in drawing or drafting

Doubling

Effects of shear

Integration of sub-processes

References

 

4 Filament yarn production

Introduction

Texturing filament yarns

Real twist texturing

False twist texturing

Draw-texturing

Stuffer box texturing

Air-jet texturing

Other texturing techniques

Industrial filaments

Silk filaments and staple yarns

Morphology and dyeing

References

 

5 Carding and prior processes for short-stable fibers

Introduction

Opening line

Bale preparation

The first stage of blending and opening

The process of disintegration of fiber clumps

Condensation

The process of cleaning

Intimate blending

Fiber flow

Carding

Waste control

Safety

References

 

6 Silver preparation

Introduction

Drawframe

Combing

Creel blending

An industrial case study

References

 

7 Short-staple spinning

Ring spinning

Open-end spinning

References

 

 

8 Long-staple spinning

Introduction :effects of lengthening the staple

Wool fibers and their preparation

Worsted systems

The woolen system

Bast fiber spinning processes

References

 

9 Post-spinning processes

Winding

Yarn joining

Ply yarns

Automation

Two-for-one twisting

Customer concerns

References

 

10 Staple systems and modified yarn structures

Yarns of complex structure

Processes using modified twist

Compact spinning

Air-jet spinning

Sirospun yarns and process

Hollow spindle spinning

Self-twist spinning

Twisted self-twist yarns and processes

References

 

 

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