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AKTU Chemical Processing of Textiles – II (BHT502) Syllabus PDF – B.Tech 3rd Year
Chemical Processing of Textiles – II BHT502
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Official AKTU syllabus of Chemical Processing of Textiles – II (BHT502) for B.Tech 3rd Year – 4 credits, L-T-P 3-1-0. Read the unit-wise course content, course outcomes, evaluation pattern and recommended books online, or download the PDF.
Syllabus — Chemical Processing of Textiles – II
Download PDFBHT502 · 4 credits · L-T-P 3-1-0
Course Objectives
- To enable the students to understand the basic concepts about dyes and pigments.
- To enable the students to understand the theory of dye bath assistant, chemical auxiliaries and dyeing process parameters.
- To enable the students to understand the detailed concept related to dyeing with Acid, Basic, Metal complex dyes on textile fibres.
- To enable the students to understand basic concepts related to methods and style of printing.
- To enable the students to understand about the classification and objectives of finishing.
| Unit | Topics | Lectures |
|---|---|---|
| I | Introduction to colouring materials. Definition and classification of colouring materials: Dyes, pigments and lakes. Dye-fibre interactions: physical, chemical, solid-solid and mechanical interactions. Terminologies used in dyeing: Affinity, substantivity, exhaustion, fixation, percentage of shade, expression. Assessment of colour fastness: Colour fastness to washing, light, rubbing & perspiration. | 12 |
| II | Dye bath assistant, chemical auxiliaries and process parameters such as temperature, pH, time and material to liquor ratio (M.L.R) in dyeing. Principles, recipe, dyeing mechanism and method of application of Direct, Reactive, Vat, Azoic, and Sulphur dyes on cellulosic fibre. Dyeing of regenerated fibres with viscose, model, and lyocel. | 12 |
| III | Acid, Basic, Metal complex dyes on textile fibres (Nylon, silk, wool) with effect of process parameters and function of chemicals. Principles, recipe, dyeing mechanism and application of Disperse dyes on Polyester. Various methods of dyeing Polyester such as Carrier, High temperature, High Pressure and thermosol dyeing. Dyeing of blends: Polyester/Cotton, Polyester/Viscose and Polyester/Wool. | 12 |
| IV | Introduction to Printing. Difference between dyeing and printing. Ingredients in the print paste, Brief introduction to methods of printing: Block and screen printing by hand, semi-automatic and fully automatic flatbed screen printing, rotary screen printing. Styles of printing: Direct, discharge and resist style. Printing process with Direct, Reactive, and Acid dyes. After treatments in printing: Steaming and curing. | 12 |
| V | Objective of textile finishing, Classification of finishing processes, Mechanical and chemical finishes. Brief introduction to mechanical finishing: Calendaring and sanforizing. Brief introduction to chemical finishing processes: Crease proofing, softening and stiffening, flame retardant, water proof & water repellent finishing. | 12 |
Outcomes:
Upon completion of the course, the students will be able: -
- To describe various aspects of dyes, pigments and various terms related to.
- To use dye bath assistant, chemical auxiliaries and dyeing process parameters and mechanism involved in the process.
- To apply the knowledge in dyeing methods for different dyes like Acid, Basic, Metal complex dyes on textile fibres.
- To define the methods and styles of printing and machines used for printing.
- To treat the fabric with various finishes agents.
Text Books
- Karakar S.R., (1999). Chemical Technology in Pretreatment of Textiles: Volume 12, Elsevier.
- Chakraborty, J. N. (Ed.). (2015). Fundamentals and practices in colouration of textiles. CRC Press.
- Trotman E. R., “Dyeing and Chemical Technology of Textile Fibres”, B.I Publishing Pvt. Ltd. New Delhi, 1994, ISBN: 0471809101 | ISBN-13: 9780471809104.
- V. A. Shenai, (1996). Technology of Dyeing Volume VI, Sevak Publications.
- Choudhury A.K.R., “Modern concepts of colour and Appearance”, Oxford and IBH publishing Ltd., 2000, ISBN: 1578080789 | ISBN-13: 9781578080786.
- Choudhury, A. K. R. (2022). Principles of Textile Printing. CRC Press.
- Prayag, R. S. (1989). Technology of Textile Printing. Noyes Data Corporation.
Reference Books
- Schindler, W. D., & Hauser, P. J. (2004). Chemical finishing of textiles. Elsevier.
- Choudhury, A. K. R. (2017). Principles of Textile Finishing. Woodhead Publishing.
- Leslie WC Miles (2003), Textile Printing, Revised Second Edition, Society of Dyers and Colourists.
- Rivlin, J. (1992). The Dyeing of Textile Fibers: Theory and practice.
- Kaushik C.V., Joscico A.I. Chemical processing of Textiles, NCUTE
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