Unit 1 General Idea

2 lecture hours

• About wet processing
• function of each department
• Flow of fabric from one department to another department

Unit 2 Object and technological aspects

12 lecture hours

• Various preparatory processes for cellulosic textiles such as grey inspection
• shearing & cropping
• optical brightening, etc

Unit 3 Scouring & bleaching

5 lecture hours

• Natural fibres other than cellulosics i.e. wool
• etc. and various synthetic fibres i.e. polyester
• acrylic, etc

Unit 4 Machines used for pretreatment processes

• Continuous range

Unit 6 Introduction to Dyeing

2 lecture hours

• Classification of colouring matters and their suitability to various fibres
• Various terminologies and definitions related to dyeing process

Unit 7 Dyeing machines for loose fibres, yarns and fabric

5 lecture hours

• i.e. package dyeing machines
• Winch dyeing machine
• padding mangles
• beam dyeing machine
• continuous dyeing machine, etc

Unit 8 Dyeing of cotton fabric with different classes of dyes

• viz. direct dyes
• reactive dyes
• vat dyes
• sulphur dyes

Unit 9 Dyeing of wool, silk, nylon and acrylic fabrics

• With acid
• metal complex and acid chrome dyes 05 11 %

Unit 10 Dyeing of polyester fabric 03 6 %

• With disperse dyes by different methods

Unit 11 Dyeing of b l e n d e d f a b r i c s

3 lecture hours

• polyester/viscose, etc