Dyeing Technology For Natural Textiles
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Dyeing Technology For Natural Textiles Syllabus — Unit-wise Content
The official GTU curriculum for Dyeing Technology For Natural Textiles (subject code 3332802) as prescribed for CS-AI · Semester 3 divides the course into 5 units, covering 24 listed topics. The unit-wise breakdown below is read from the GTU syllabus document for this subject code, so you can check what the course actually covers before deciding which papers to attempt.
Download the official syllabus PDF (3332802)Unit 1 General Aspects of Dyeing
- 1.1. Definition of Dye, Dyeing, Pigment, etc.
- 1.2. Terminology of Dyeing:- Percent Shade, Self Shade, Compound Shade, Material to liquor ratio (M:L R), Percent exhaustion, Affinity, Substantivity, Standing bath, Topping, Stripping, different fastness properties etc.
- 1.3. Classification of Dyes according to their Application method.
- 1.4. Mechanism of Dyeing:- Adsorption, Diffusion, Fixation
- 1.5. Different types of the bond formation between different dyes & Fibres.
Unit 2 Application of Various Dyes on Natural and Regenerated Fibers
- 2.1. Properties and nature of various dyes.
- 2.2. Different dyes and their application methods for cellulosic fibres (Direct, Reactive, Vat, Azoic, Solublised vat, Sulphur, Pigment, Aniline black, Mineral Khaki, etc)
- 2.3. Different dyes and their application methods for wool & Silk (Acid, Basic, Metal – complex, acid mordant, etc.)
- 2.4. Role of Different Chemicals and auxiliaries used for different dyeing processes
- 2.5. Various parameters affecting the dyeing processes
- 2.6. After treatments of dyed material
- 2.7. Stripping of various dyes from dyed material
Unit 3 Machineries Used for Dyeing 3a.Explain principle, construction & working of machines for dyeing of yarn & fabrics.
- 3.1. Principle, construction and working of loose fibre, yarn and fabric dyeing machines
- 3.3. Merits & demerits of various dyeing machines
- 3.2. Possible faults in Jigger, winch, package dyeing & Padding mangle with their causes and remedial processes
Unit 4 Dyeing of Denim Warp Yarns
- 4.1. Conditions and requirement for Indigo dyeing
- 4.2. Preparation of Stock vat of Indigo dye
- 4.3. Preparation of dye bath of Indigo dye
- 4.4. Types of dyeing machines Dyeing Technology for Natural Textile Course Code: 3332802 GTU/ NITTTR Bhopal/13 Gujarat State Unit Major Learning Outcomes (Course Outcomes in Cognitive Domain according to NBA terminology) Topics and Sub-topics for denim dyeing. (a) Rope form dyeing machine (b) Sheet form dyeing machine
- 4.5. Comparison of rope dyeing plant and sheet dyeing plant with their merits and demerits
Unit 5 Innovation in Textile Dyeing
- 5.1. Natural Dyes
- 5.2. Reactive Dyes
- 5.3. Jumbo jigger dyeing machine
- 5.4. Continuous Dyeing Range
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