Textile Wet Processing-I

 

We will able to know about 

Water

Soaps & Detergents

Pretreatments

Water

• Sources of water
• Importance of water in textile wet processing
• Water hardness & It’s measuring units
• Types of water hardness
• Classification of water based on hardness
• Standard water quality for boiler & Textile dye house
• Problems associated with hard water
• Estimation of hardness of water
• Removal of water hardness by water softening treatments- Soda-lime process
• Base-exchange process & De-mineralization process. 

Soaps & Detergents

• Soaps & Its’ manufacturing process
• Properties & Selection of soaps
• Cleaning action of soaps
• Classification of organic textile chemicals
• Different types of surface-active agents
• Detergents & Its’ Classification
• Difference between soaps & detergents
• Chemistry, properties and uses of various Acids, Alkalies, Salts
• Oxidizing Agents and Reducing Agents in Textile Wet Processing.

Pretreatments

• Flow-chart of textile wet processing
• Chemistry of various impurities in fibres and their removals
• Singeing
• De-sizing
• Scouring of cotton, Jute, Wool and silk fibres
• Bleaching agents and Methods of bleaching of cotton, Jute, wool and silk fibre
• Special scouring processes-Solvent scouring and Vapour-loc scouring
• Estimation of scouring and bleaching effects
• Estimation of available chlorine in bleaching agents, Faults and damages in Scouring & bleaching.

 Reference Textbook:

• Technology of Bleaching and Mercerizing by Dr. V.A Shenai (Vol-III)*
• Dyeing and Chemical Technology of Textile fibres by E.R Trotman*
• Cellulose Dyeing by John Shore*
• Practice of Textile Coloration by Md. Forhad Hossain
• Textile Coloration & Finishing by Warren S. Perking
• Basic Principle of Textile coloration by Arthur D. Broadbent