Unit 1 Introduction to textile processing and its importance. Flow of material for different

4 lecture hours

• processes and its objectives
• Fabric inspection
• idea about chemicals and auxiliaries

Unit 2 Singeing, Shearing and cropping

10 lecture hours

• Objectives and its importance
• Types of singeing machine and its parameters- plate
• roller and gas singeing machines
• Desizing: Objects
• desizing technique - rot steeping
• acid steeping, and enzymetic desizing
• different desizing agents
• Continuous desizing machine
• Scouring: Objects
• chemicals used
• continuous scouring with J-Box
• Scouring recipe for cotton
• silk and manmade fibers

Unit 3 Bleaching and mercerization

10 lecture hours

• Oxidative and reductive bleaching agents
• methods and machinery used
• various ingredients used
• effect of various process parameter- time
• temp and pH, Optical whitening agents and their use

Unit 4 Dyeing

10 lecture hours

• Introduction to dyeing of yarns and fabrics
• various classes of dye - Direct
• Acid, Vat, Reactive and Disperse and its applications
• Different machines used for dyeing processes

Unit 5 Printing

10 lecture hours

• Introduction to printing
• different methods and styles of printing
• Type of printing machines - block
• flat screen
• rotary screen printing & Digital printing
• Preparation of Printing paste for different dyes
• After treatment and its importance

Unit 6 Finishing

• Introduction to finishing
• Classifications of various finishes
• Permanent and semi permanent 10 Subject Code: 3142907 w.e.f