BCT403 Chemical Processing of Textiles I Syllabus
AKTU B.Tech · 4th Semester · Unit-wise syllabus (effective 2023-24)
BCT403 Chemical Processing of Textiles I (also written as KCT403) is a subject in Semester 4 of the AKTU B.Tech programme, prescribed by Dr. A.P.J. Abdul Kalam Technical University. It carries 3 credits with an L-T-P of 2-1-0. The syllabus is divided into 5 units: Unit (1) and Singeing and Desizing, Unit (2), Unit (3) and Continuous scouring and bleaching, Unit (4), Unit (5) and References. The complete unit-wise topic list, course outcomes and reference books are given below, taken from the official AKTU syllabus effective from 2023-24.
BCT403 Subject Details
| Subject Code | BCT403 / KCT403 |
|---|---|
| Subject Name | Chemical Processing of Textiles I |
| University | Dr. A.P.J. Abdul Kalam Technical University (AKTU) |
| Course | B.Tech (Bachelor of Technology) |
| Year / Semester | 2nd Year · 4th Semester |
| Credits | 3 |
| L-T-P | 2-1-0 |
| Total Units | 5 |
| Scheme Effective From | 2023-24 |
| Last Verified | 2026-08-15 |
BCT403 Chemical Processing of Textiles I Unit-Wise Syllabus
Official AKTU syllabus (effective 2023-24) — 5 units.
Unit 1: Unit (1) · Singeing · Desizing
Unit (1): Total lectures required = 12 Preparatory Process: Sequence of preparatory process prior to dyeing for natural & manmade fibre fabrics with special reference to cotton, wool, polyester and blends. Singeing: details of gas singeing process. Desizing: Objects of desizing, Mechanism of desizing. Various methods of industrial desizing: Hydrolytic enzymatic & oxidative method of desizing, Evaluation of efficiency of desizing.
Unit 2: Unit (2)
Unit (2): Total lectures required = 12 Scouring: Object of scouring, Scouring with alkali assisted desizing, eco-friendly scouring process. Inter- relation between desizing and scouring, Study of batch-wise & continuous methods of scouring. Scouring machines for batch process of cotton and blended fabric. Evaluation of efficiency of scouring
Unit 3: Unit (3) · Continuous scouring and bleaching
Unit (3): Total lectures required = 12 Bleaching: Objects of bleaching, Introduction to bleaching agents like sodium hypochlorite ,hydrogen peroxide & per-acetic acid, Bleaching of cotton, polyester & its blends, Batch-wise & continuous machinery for bleaching, Bleaching of wool ,silk, Concept of AOX. Bleaching process for compliance of EU norms. Evaluation of efficiency of bleaching. Continuous scouring and bleaching: Pre-treatment Range
Unit 4: Unit (4)
Unit (4): Total lectures required = 12 Mercerization: Introduction & objects of mercerization, Effect of mercerization on structure of cellulose, Machinery used for yarn, woven and knit fabrics, Concept of hot mercerization & liquid ammonia mercerization, mercerization machines: chain mercerization and chainless mercerization. testing methods to evaluate efficiency of mercerization like Barium Activity, Number, Axial Ratio & Luster index.
Unit 5: Unit (5) · References
Unit (5): Total lectures required = 12 Direct Dyes: Theory of dyeing, dynamic equilibrium, Generalised formula of Direct dyes: Classification of direct dyes; Mechanism of Direct dyes and procedure for application of direct dyes; dye-fibre bond; effect of different process parameters (e.g. temp, time, pH) & role of various additives in dyeing process; fastness properties of direct dyes; industrial after treatments for direct dyes. References: 1. Dyeing & Chemical technology of Textile fibres by E.R. Trotman. 2. Chemical Technology in the Pre-Treatment process of Textile by Dr S. R. Karmakar. 3. Technology of Bleaching Vol. IV, by Dr. V.A. Shenai. 4. Technology of Bleaching by J.T Marsh 5. Chemistry of Dyes and principles of Dyeing by Dr. V.A. Shenai. 6. Technology of Dyeing by Dr. V.A. Shenai
BCT403 Course Outcomes
- Course Objectives:
- 6. To acquire knowledge of fundamentals of singeing, desizing, scouring, bleaching, mercerisation
- and direct dyeing.
- 7. To identify technological involvement with appropriate techniques in singeing, desizing,
- scouring, bleaching, mercerisation and dyeing processes.
- 8. To formulate and apply technological knowledge in singeing, desizing, scouring, bleaching,
- mercerisation and dyeing processes in industry.
- 9. To make the chemical processes under control in singeing, desizing, scouring, bleaching,
- mercerisation and dyeing.
- 10. To demonstrate knowledge for project work and be helpful to higher studies in the field of
BCT403 Reference Books
- Acquire knowledge of fundamentals of singeing, desizing, scouring, bleaching, mercerisation and direct
- Identify technological involvement with appropriate techniques in singeing, desizing, scouring, bleaching,
- Formulate and apply technological knowledge in singeing, desizing, scouring, bleaching, mercerisation and
- Make the chemical processes under control in singeing, desizing, scouring, bleaching, mercerisation and
- Demonstrate knowledge for project work and be helpful to higher studies in the field of singeing, desizing,
Frequently Asked Questions about BCT403
What is the syllabus of BCT403 Chemical Processing of Textiles I?
The AKTU BCT403 Chemical Processing of Textiles I syllabus is divided into 5 units: Unit (1) and Singeing and Desizing; Unit (2); Unit (3) and Continuous scouring and bleaching; Unit (4); Unit (5) and References. The complete topic list for each unit is published on this page, taken from the official Dr. A.P.J. Abdul Kalam Technical University syllabus effective from 2023-24.
How many units are there in BCT403?
BCT403 Chemical Processing of Textiles I has 5 units in the AKTU syllabus, with an L-T-P (Lecture-Tutorial-Practical) structure of 2-1-0 and 3 credits.
Is BCT403 the same subject as KCT403?
Yes. AKTU renumbered its B.Tech subject codes from the 2022-23 session onwards, so the same subject appears as BCT403 and KCT403 depending on the scheme year. The syllabus content is the same.
Which semester is BCT403 taught in?
BCT403 Chemical Processing of Textiles I is taught in Semester 4 of the 2nd year of the AKTU B.Tech programme.
How many credits is BCT403 worth?
BCT403 Chemical Processing of Textiles I carries 3 credits in the AKTU evaluation scheme, with an L-T-P of 2-1-0.
Where can I download BCT403 previous year question papers?
AKTU B.Tech previous year question papers for every semester are available to download free on Ryzenstudy, with no login or registration required.
Is this the official AKTU syllabus for BCT403?
Yes. Every topic on this page is taken from the official Dr. A.P.J. Abdul Kalam Technical University syllabus document (AKTU B.Tech 2nd Year Carpet and Textile Technology Syllabus), effective from 2023-24. A direct link to the original AKTU PDF is provided at the top of this page. Last verified on 2026-08-15.
Related AKTU Syllabus
Source: Dr. A.P.J. Abdul Kalam Technical University official syllabus — AKTU B.Tech 2nd Year Carpet and Textile Technology Syllabus, effective from 2023-24. Ryzenstudy is not affiliated with AKTU. Content last verified on 2026-08-15.