Fabric Colouration (Theory)

Paper Code: 
25CFSD 401
Credits: 
3
Contact Hours: 
45.00
Max. Marks: 
100.00
Objective: 

This course will enable the students to -

1.     Develop foundation towards application of dyes on different fabrics

2.     Integrate comprehensive knowledge about concept of various dyeing & printing methods 

Course Outcomes: 

Course

 Course outcomes

(at course level)

Learning and teaching strategies

Assessment

Strategies

COURSE CODE

Course Title

25CFSD 401

 

Fabric Colouration

(Theory)

 

 

CO.75 Explain the various techniques of fabric preparatory process.

CO.76 Describe the process of dyeing of various fibers to fabric with different dyes

CO.77 Classify the printing techniques and printing styles.

CO.78 Illustrate the after treatment and auxiliaries

CO.79 Interpret various finishes and special surface enhancement.

CO.80 Contribute effectively course-specific interaction

Approach in teaching:

Interactive Lectures, Discussion, Power Point Presentations, Informative videos

 

Learning activities for the students:

Self-learning assignments, Effective questions, presentations, Field trips

Assessment tasks will include Class Test on the topics, Semester end examinations, /Quiz, Student presentations, and assignments

 

 

9.00
Unit I: 
Preparatory Processes

●      Importance and application of different preparatory processes

o   Desizing

o   Scouring

o   Bleaching

o   Boiling

o   Singeing

o   Mercerization

9.00
Unit II: 
Auxiliaries

o   Wetting agents, dispersing agents and solvents

o   Hygroscopic agents

o   Anti foaming agents

o   Oxidizing and reducing agents

o   Carriers or Swelling agents

o   Retarding or Levelling agents

o   Chelating or Sequestering agents

o   Dye fixing agents

●      Binders and thickeners

●      Optical brightening agents

●      Soaps and detergents

9.00
Unit III: 
Printing

●      Styles of printing – direct, discharge, resist, dyed

●      Methods of printing

  • Block printing
  • Roller printing
  • Stencil, screen (flat and rotary) printing
  • Transfer printing
  • Innovative printing methods: Digital printing, Polychromatic printing, Photo Printing, Jet Spray Printing
  • After treatment of printing
9.00
Unit IV: 
Dyeing
  • Terminology and theory of dyeing
  • Classification of dyes
  • Principles of dyeing
  • Mode of application of direct, acid, basic, azoic, reactive, sulphur, vat, mordant and disperse dyes
  • Methods of dyeing & effects achieved on various textile material Fibre, Yarn, and Fabric
  • Achieving different shade effects on fabrics through cross dyeing, union dyeing
  • After treatment of dyeing
  • Methods of colour fastness 
9.00
Unit V: 
Finishing
  • Classification of finishes
  • Preparatory finishes
  • Finishes affecting appearance and texture: Calendering, Napping, Shearing, Softening, Stiffening, Parchmentization, Raising, Mercerization
  • Finishes for enhancing special characteristics: Flame proofing, Soil Release, Water proof and water repellent, Crease Resistance, Softening, Sanforising, Optical whitening
  • Effluent treatment
Essential Readings: 

●      Prayag, R.S. (1989), Technology of Textile Printing, Dharwad Karnataka Shree J Printers.

●      Shenai, V.A. (1987), Chemistry of Dyes and Principles of Dyeing, Sevak Prakashan, Mumbai,

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

●      Gohl & Vilensky (1980), Textile science, 2nd ed., CBS Publications, New Delhi.

References: 

Suggested Readings:

●      Jain Hemlatha (2010), Techniques of dyeing and printing, Anne books Pvt. Ltd, New Delhi.

●      Sekhri Seema (2011), Text Book of Fabric Science fundamentals to Finishing, PHI Learning Pvt, Ltd, New Delhi.

●      Chaudhary, A. K. Roy (2006), Textile Processing and dyeing, Scienec pulications, New Delhi.

●      Miles L.W.C.(1994), Textile Printing, 2nd edition, England, Society of Dyers and Colourists

E-Resources:

·       https://www.youtube.com/watch?v=oofh4pKfXl0

·       https://www.youtube.com/watch?v=oofh4pKfXl0&list=RDCMUC640y4UvDAlya_WOj5U4pfA&start_radio=1&rv=oofh4pKfXl0&t=15

Journals:

·     https://irispublishers.com/jtsft/

·     Colourage

Academic Year: 
2025-26
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