TC3214 PREPARATION OF TEXTILES FOR COLORATION SYLLABUS | ANNA UNIVERSITY BTECH TEXTILE CHEMISTRY 4TH SEM SYLLABUS REGULATION 2008 2011 2012-2013 BELOW IS THE ANNA UNIVERSITY FOURTH SEMESTER B TECH TEXTILE CHEMISTRY DEPARTMENT SYLLABUS, TEXTBOOKS, REFERENCE BOOKS,EXAM PORTIONS,QUESTION BANK,PREVIOUS YEAR QUESTION PAPERS,MODEL QUESTION PAPERS, CLASS NOTES, IMPORTANT 2 MARKS, 8 MARKS, 16 MARKS TOPICS. IT IS APPLICABLE FOR ALL STUDENTS ADMITTED IN THE YEAR 2011 2012-2013 (ANNA UNIVERSITY CHENNAI,TRICHY,MADURAI, TIRUNELVELI,COIMBATORE), 2008 REGULATION OF ANNA UNIVERSITY CHENNAI AND STUDENTS ADMITTED IN ANNA UNIVERSITY CHENNAI DURING 2009
TC3214 PREPARATION OF TEXTILES FOR COLORATION L T P C
3 0 0 3
UNIT I SINGEING & DESIZING 9
Impurities present in different fibres, Inspection of grey goods and lot preparation.
Shearing and Cropping Singeing of cotton and blended fabrics. Yarn singeing -
Singeing of tubular knitted fabrics. Tightrope, Slack rope washing. Acid desizing and its
limitations, enzyme desizing – Open width washing machine. Degumming of silks using
soap, soap and soda ash, acids, amines and enzymes.
UNIT II MERCERISATION 9
Mercerizing - conditions. Physical and Chemical changes – Mercerizing of coloured
goods P/C blends and tubular knits.Typical recipe for desizing of different materials –
different desizing methods. Effects of Time, Tension, Caustic Concentration, Temp on
mercerizing effects. Stack mercerizing, Hot mercerizing, mercerizing of blending fabrics.
UNIT III SCOURING 9
Principles of Scouring: jumbo/JT-10, Vapourlac and soft flow machine, Chemical and
auxiliaries for Scouring - Scouring of coloured goods – Degumming of Silk, Scouring of
wool, silk P/C, P/V blends – Scouring of Jute, Souring of synthetic textiles, Solvent
Scouring, Bio Scouring. Auxiliaries required for scouring of different materials and with
respect to different materials.
UNIT IV BLEACHING 9
Principles of Bleaching: Importance of whiteness and whiteness retention –
Bleaching mechanism of Hydrogen Peroxide, Hypo chlorites and Sodium chlorite –
Parameters involved in bleaching action – Merits and Demerits of each bleaching agent
– bleaching in rope form bleaching in Kier, Jumbo Jigger – Continuous \scouring and
Bleaching of cotton goods in open width and rope form using H2O2 – Yarn Scouring and
Bleaching using Cabinet hank dyeing machine. Bleaching of p/c blend in open width
form by Pad roll and continuous methods using Hydrogen Peroxide and Sodium chlorite,
bleaching of Jute – Knitted fabric bleaching on winches, soft flow – The concept of full
bleaching –Mechanism of Whitening effect. Blueing agents and its use. Combined
Bleaching & whitening. Typical recipe for bleaching of different fibres.
UNIT V DEVELOPMENTS 9
Developments in grey preparation – combined processing enzymatic scouring &
bleaching, cold bleaching; prograde process (liquid ammonia mercerization)
Developments in desizing, Scoouring, Bleaching and mercerizing, plasma based
preparation, ozone bleaching.
TOTAL : 45 PERIODS REFERENCES
1. Trotman, E.R., Textile Scouring and Bleaching, Charless Griffins, Com. Ltd., London
1990.
2. Shenai V.A., Technology of Bleaching and Mercerizing, Sevak Publications, Wadala,
Chennai, 1991.
3. Charles Tomasno, Chemistry and Technology of fabric Preparation and Finishing,
North Carolina State University, USA,1992
4. Nalankilli.G, Edwin Sundar.A, Chemical Preparatory Processes for Textiles, NCUTE
Publications, New Delhi, 2002
5. Karmakar, S.R., Chemical Technology in the Pre-Treatment Processes of Textiles.
Elsevier Science, 1999
6. Chakraborty, J.N, Fundamentals and Practices in colouration of textiles, Woodhead
Publishing India, 2009, ISBN – 13: 978-81-908001-4-3
TC3214 PREPARATION OF TEXTILES FOR COLORATION L T P C
3 0 0 3
UNIT I SINGEING & DESIZING 9
Impurities present in different fibres, Inspection of grey goods and lot preparation.
Shearing and Cropping Singeing of cotton and blended fabrics. Yarn singeing -
Singeing of tubular knitted fabrics. Tightrope, Slack rope washing. Acid desizing and its
limitations, enzyme desizing – Open width washing machine. Degumming of silks using
soap, soap and soda ash, acids, amines and enzymes.
UNIT II MERCERISATION 9
Mercerizing - conditions. Physical and Chemical changes – Mercerizing of coloured
goods P/C blends and tubular knits.Typical recipe for desizing of different materials –
different desizing methods. Effects of Time, Tension, Caustic Concentration, Temp on
mercerizing effects. Stack mercerizing, Hot mercerizing, mercerizing of blending fabrics.
UNIT III SCOURING 9
Principles of Scouring: jumbo/JT-10, Vapourlac and soft flow machine, Chemical and
auxiliaries for Scouring - Scouring of coloured goods – Degumming of Silk, Scouring of
wool, silk P/C, P/V blends – Scouring of Jute, Souring of synthetic textiles, Solvent
Scouring, Bio Scouring. Auxiliaries required for scouring of different materials and with
respect to different materials.
UNIT IV BLEACHING 9
Principles of Bleaching: Importance of whiteness and whiteness retention –
Bleaching mechanism of Hydrogen Peroxide, Hypo chlorites and Sodium chlorite –
Parameters involved in bleaching action – Merits and Demerits of each bleaching agent
– bleaching in rope form bleaching in Kier, Jumbo Jigger – Continuous \scouring and
Bleaching of cotton goods in open width and rope form using H2O2 – Yarn Scouring and
Bleaching using Cabinet hank dyeing machine. Bleaching of p/c blend in open width
form by Pad roll and continuous methods using Hydrogen Peroxide and Sodium chlorite,
bleaching of Jute – Knitted fabric bleaching on winches, soft flow – The concept of full
bleaching –Mechanism of Whitening effect. Blueing agents and its use. Combined
Bleaching & whitening. Typical recipe for bleaching of different fibres.
UNIT V DEVELOPMENTS 9
Developments in grey preparation – combined processing enzymatic scouring &
bleaching, cold bleaching; prograde process (liquid ammonia mercerization)
Developments in desizing, Scoouring, Bleaching and mercerizing, plasma based
preparation, ozone bleaching.
TOTAL : 45 PERIODS REFERENCES
1. Trotman, E.R., Textile Scouring and Bleaching, Charless Griffins, Com. Ltd., London
1990.
2. Shenai V.A., Technology of Bleaching and Mercerizing, Sevak Publications, Wadala,
Chennai, 1991.
3. Charles Tomasno, Chemistry and Technology of fabric Preparation and Finishing,
North Carolina State University, USA,1992
4. Nalankilli.G, Edwin Sundar.A, Chemical Preparatory Processes for Textiles, NCUTE
Publications, New Delhi, 2002
5. Karmakar, S.R., Chemical Technology in the Pre-Treatment Processes of Textiles.
Elsevier Science, 1999
6. Chakraborty, J.N, Fundamentals and Practices in colouration of textiles, Woodhead
Publishing India, 2009, ISBN – 13: 978-81-908001-4-3
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