Dyeing And Printing

Paper Code: 
BFT- 302
Credits: 
3
Contact Hours: 
45.00
Max. Marks: 
100.00
Objective: 

 

To introduce different classes of dyes used on textiles.

To help the students in understanding relation between fibre and dye.

To help the student in selecting appropriate design while using different printing methods.

To introduce the students to various types of finishes used in the processing of textiles.

9.00
Unit I: 

Preparatory processes – singeing, desizing, scouring, bleaching

9.00
Unit II: 

Classification of dyestuff.
Preparation of material for dyeing & printing
Introduction to fibres, yarns and fabric & garment dyeing.
Auxiliaries used in dyeing and printing.
 

9.00
Unit III: 

Different classes of dyes used on various fibres.

  • Natural Dyes
  • Direct dyes
  • Basic dyes
  • Acid
  • Vat dyes
  • Azoic dyes
  • Reactive dyes
  • Disperse dyes
  • After treatments
  • Dyeing defects
     
9.00
Unit IV: 

Preparation of material for printing
Different styles of Printing- Direct, Discharge and Resist.
Different methods of printing
Block printing
Screen printing: - Hand screen printing, Flatbed screen printing, Semi automatic screen printing, Automatic screen printing &  Rotary screen printing
Roller printing    
Transfer printing
Printing defects of screen & roller printing & their remedies
 

9.00
Unit V: 

Introduction to finishes and its classification
General Finishes: Mercerization, Carbonization,
Mechanical Finishes: Calendaring – types of calendaring treatment, heat setting, shearing, tentering, weighing, sanforizing, schreineuzing.
Functional Finishes: Anti-creasing, anti-static, waterproofing, moth proofing, mildew proof, flame proof.

Essential Readings: 
  1. Shenai, V.A., (1987) Chemistry of Dyes and Principles of Dyeing, Sevak Prakashan, Mumbai.
  2. Prayag, R.S., Technology Textile Printing, Noyes Data Corporation.
  3. Joseph, M. Introductory Textile Science, Molt Rinchart and Winston.

  4. .   Bhattacharya Niyati, Natural Dyes for Textiles and their Eco Friendly Application, New Delhi, IAFL Publications,2010

  5. Shenai, V.A., Technology of Printing, Technology of Textile Processing, Vol. IV, Sevak Publications. Bombay 1996

     

     

References: 

1. Prayag, R. S.,Textile Finishing, Dharwad, Karnataka

2. Fereday Gwes, Natural Dyes, The British Museum Press.

3. Shenai V.A, Technology of Dyeing, Sevak Prakashan, Mumbai.1997

4. Shenai V.A, Ecology & Textiles, Sevak Prakashan, Mumbai 1997

 

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