COURSE TITLE : TEXTILE WET PROCESSING I -PRACTICAL COURSE CODE : 3068 COURSE CATEGORY : B PERIODS/WEEK : 5 PERIODS/SEMESTER : 75 CREDITS : 3

COURSE OBJECTIVE

Sl. No. Student will be able to

1 Identification of Textile fibers 2 Identify the chemicals and pre-treatments for cotton textiles

3 Understand defects and remedies of pre-treatments

4 Know the Classification of dyes .

5 Understand the Application of water soluble colours

6 Understand the Application of water insoluble colours 7 Know the After treatments given to Direct, Sulphur and Vat dyed materials 8 Analyse the effects of different variants in dyeing

9 Know the Application of Naphthol colours

LIST OF EXPERIMENTS

1.0 IDENTIFICATION OF TEXTILE FIBERS AND PREPARATORY TREATMENTS FOR COTTON YARNS

& FABRICS

1.1 Identification of Textile fibers by different methods 1.2 De-sizing of grey fabrics using dilute hydrochloric acid 1.2 Scour the fabric/yarn 1.3 Bleach the given scoured fabric/yarn using oxidizing and reducing agents such as

1.3.1 Bleaching powder. 1.3.2 Sodium hypochlorite 1.3.3 Hydrogen peroxide

2.0 DYEING OF COTTON/ VISCOSE USING DIRECT, BASIC & REACTIVE DYES

2.1 Dyeing of different shades using direct dyes 2.2 Dyeing of different shades using basic dyes 2.3 Apply after treatments to direct dyed materials for

2.3.1 Fastness to light 2.3.2 Fastness to wash 2.3.3 Fastness to light and wash 2.3.4 Fastness to perspiration 2.3.5 Topping with basic dyes

2.4 Dyeing different shades using Cold and Hot Reactive Dyes 3.0 DYEING OF SULPHUR & VAT DYES ON COTTON & VISCOSE

3.1 Dyeing of Cotton & Viscose with different shades using

3.1.1 Sulphur dyes 3.1.2 Vat dyes 3.1.3 Solubilised Vat dyes

3.2 Apply After treatments to Sulphur dyed materials 4.0 DYEING OF COTTON WITH AZOIC COLOURS

4.1 Dye cotton Yarn/Fabric with different shades using various Naphthol and base combinations LIST OF EQUIPMENTS/ MACHINES AND TOOLS 1. Stainless steel dye vessels

2. Stainless steel water baths

3. Heaters

4. Kier

5. 'J' Box scouring and bleaching unit- Lab model

6. Working tables

7. pH meter

8. Thermo meter

9. Projection microscope