BCT502 Chemical Processing of Textiles II Syllabus — AKTU 2024-25

Syllabus

5 units · 40 lecture hours

Unit1

Unit 1

8 hrs

Azoic Colour: Basic principle of application of Azoic Colour; Naphtholation process, role of additives and effect of process parameters on naphtholation process. Classification of naphthols based on substantivity. Basic chemistry in Diazotisation process, Procedure for diazotisation; Stabilization of diazonism salts. Development of Shades- Coupling, Basic Chemistry involved in coupling. Fastness properties of Azoic Colours. Sulphur Dyes: Chemical nature of sulphur dyes; Classification of sulphur dyes, Process of application of sulphur dyes & mechanism of dyeing, Role of additives and process parameters in sulphur dyeing. Fastness properties of sulphur dyes.

Unit2

Unit 2

8 hrs

Vat Dyes: General formula of vat dyes, classification of vat dyes; Process of application of vat dyes, mechanism of vat dyeing; oxidation process; Role of additives and process parameters in vat dyeing. Sollubilised Vat dyes. Dyeing with solubilizsed vat dyes. Fastness properties of vat dyes.

Unit3

Unit 3

8 hrs

Reactive Dyes: General formula of reactive dyes. Chemical nature of reactive dyes; Classification of reactive dyes; Process of application of various kind of reactive dyes & dyeing mechanism; Role of additive and effect of process parameter in reactive dyeing. General properties of reactive dyes. Disperse Dyes: Chemical nature of disperse dyes, application of disperse dyes on polyester; dyeing mechanism; Role of additives & effect of process parameters on disperse dyeing. Optical whitening agents, application to polyester and cotton.

Unit4

Unit 4

8 hrs

TEXTILE FINISHING Purpose of finishing; Type of finishing, Permanent & Temporary; Mechanical & Chemical finishing. Chemical finishing- Anticrease finish (Using DMU & DMDHEU)

Unit5

Unit 5

8 hrs

Flame retardant finish, Water repellent & Water proofing finish, Softening of fabric, Anti soiling finish. Brief description of different type of finishing machine; Stenter, Sanforizing machine, Calendering machine etc.

Course Objectives1 points

Objective of the course is to learn, understand, identify dyeing process & finishing process and apply dyes: azoic dyes, sulphur dyes, vat dyes, reactive dyes, disperse dyes to textiles and apply finishing chemicals to textiles.

Course Outcomes (COs)5 outcomes

After completion of the course student will be able to:

CO1Knowledge of fundamentals of azoic dyes, sulphur dyes, vat dyes, reactive dyes, disperse dyes and textile finishing. Page 6 of 30
CO2Understanding of technological involvement with appropriate techniques in azoic dyes, sulphur dyes, vat dyes, reactive dyes, disperse dyes and textile finishing.
CO3Knowledge of application technique of azoic dyes, sulphur dyes, vat dyes, reactive dyes, disperse dyes and textile finishing process in industry.
CO4Capacity to make the chemical processes under control in azoic dyes, sulphur dyes, vat dyes, reactive dyes, disperse dyes and textile finishing.
CO5Understanding for doing project work and aptitude for higher studies in the field of azoic dyes, sulphur dyes, vat dyes, reactive dyes, disperse dyes and textile finishing. Page 7 of 30

References

Dyeing & Chemical Technology of Textile fibres by E.R. Trotman.
Chemical Technology of fibrous material by F..Sadov.
Chemistry of Dyes and principles of Dyeing by Dr. V.A. Shenai.
Technology of Dyeing by Dr. V.A. Shenai
Chemical Processing of Synthetic fibres by Dr. K.V. Datye & A.A. Vaidya
The Dyeing of Cellulose fibres by Clifford Preston.
Technology of Finishing – Vol. X by Dr. V.A. Shenai.
Introduction to Textile finishing by J.T. Marsh

Official AKTU syllabus

This subject is on page 5, 6, 7 of the original AKTU PDF.

Official AKTU syllabus PDF ↗