Bleaching Technology for textiles
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Bleaching Technology for textiles Syllabus — Unit-wise Content
The official GTU curriculum for Bleaching Technology for textiles (subject code 4332802) as prescribed for CS-AI · Semester 3 divides the course into 5 units, covering 45 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 (4332802)Unit 1 Mechanic al Pretreatm ents of textiles 1a Classify various impurities present in to grey textiles.
- 1.1. Classification of Impurities
- 1.2. Preparatory sequences for cotton, Viscose rayon, Polyester, Nylon & their blended textiles.
- 1.3. Grey Inspection process
- 1.4. Stitching process
- 1.5. Gas Singeing process
- 1.6. Shearing & Cropping process
Unit 2 Chemical Pretreatm ents of Cellulosic textiles 2a Describe purposes of Desizing, Scouring & Bleaching and
- 2.1. Desizing process
- 2.1.1. Objects & Classification
- 2.1.2. Mechanism of desizing
- 2.1.3. Various methods of desizing of cotton textiles
- 2.1.4. Various defects with their remedies
- 2.2. Scouring process
- 2.2.1. Objects & classification of scouring agents
- 2.2.2. Mechanism of scouring
- 2.2.3. Scouring of cotton and Viscose Rayon textiles
- 2.2.4. Solvent assisted scouring
- 2.3. Bleaching process
- 2.3.1. Objects and classification
- 2.3.2. Mechanism of hypochlorite bleaching and peroxide bleaching
- 2.3.3. Bleaching of cotton and Viscose Rayon textiles
- 2.3.4. Various defects with their remedies Bleaching Technology for Textiles Course Code:4332802
- 2.4. Mercerization process
- 2.4.2. Mechanism of mercerization
- 2.4.3. Various factors affecting the process of mercerization
Unit 3 Chemical Pretreatm ents of Synthetic textiles 3a Describe purposes of Scouring and Bleaching Processes for synthetic
- 3.1. Scouring process
- 3.1.1. Scouring of Polyester, Nylon, CDPET, Acrylic and their blended textiles
- 3.2. Bleaching process
- 3.2.1. Mechanism of sodium chlorite bleaching
- 3.2.2. Bleaching of Polyester, Nylon, CDPET, Acrylic and their blended textiles
- 3.3. Wight reduction process
- 3.3.1. Objects and Mechanism
- 3.3.2. Weight reduction of polyester fabrics
Unit 4 Chemical Pretreatm ents of Natural Protein textiles 4a Prepare preparatory process sequences for
- 4.1. Preparatory process sequence for wool textiles
- 4.2. Carbonization of Wool
- 4.3. Scouring of wool
- 4.4. Bleaching of wool
- 4.5. Preparatory process sequence for Silk textiles
- 4.6. Degumming of silk
- 4.6.1. Mechanism of degumming
- 4.6.2. Various methods of degumming
- 4.7. Bleaching of Silk
Unit 5 Machineri es for Chemical Pretreatm ents of textiles 5a Explain Batchwise
- 5.1. Batchwise machineries for desizing, scouring & bleaching process such as Kier, Jigger, Soft flow.
- 5.2. Semi-continuous machineries for desizing, scouring & bleaching process such as Cold- pad-Batch, Hot-Pad-Batch
- 5.3. Continuous machineries for desizing, scouring & bleaching process such as Continuous bleaching range (CBR).
- 5.4. Machineries for fabric mercerization process such as Chainless Padless mercerizer, Chain type Pad type mercerizer.
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