| Material Exploration (Art & Craft) | 11:00 am |
Fabric Colouration (Theory)
Course Objectives:
This course will enable the students to -
1. Develop foundation towards application of dyes on different fabrics
2. Provide comprehensive knowledge about concept of various dyeing & printing methods
Course Outcomes (COs):
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Course |
Learning outcomes (at course level) |
Learning and teaching strategies |
Assessment Strategies |
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COURSE CODE |
Course Title |
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CFSD 501
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Fabric Colouration (Theory)
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The Students will be able to: CO.1 Apply the various techniques of fabric preparatory process. CO.2 Describe the process of dyeing of various fibers to fabric with different dyes CO.3 Explain the printing techniques and printing styles. CO.4 Illustrate the after treatment and auxiliaries CO.5 Interpret the introduction to various finishes and special surface enhancement. |
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
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● Importance and application of different preparatory processes
o Desizing
o Scouring
o Bleaching
o Boiling
o Singeing
o Mercerization
● Fixation of prints: Ageing, Steaming, Baking, Wet development
● Washing of printed goods
● 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
● Fabric defects in Dyeing and 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
● 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
● Methods of colour fastness
● 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
Suggested Text Books:
● 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.
Suggested Reference Books:
● 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
