15TX43T: Chemical Processing of Textiles-I Textile 4th Sem Syllabus for Diploma DTE Karnataka C15 Scheme

Chemical Processing of Textiles-I detail DTE Kar Diploma syllabus for Textile Engineering (TX), C15 scheme is extracted from DTE Karnataka official website and presented for diploma students. The course code (15TX43T), and for exam duration, Teaching Hr/week, Practical Hr/week, Total Marks, internal marks, theory marks, duration and credits do visit complete sem subjects post given below. The syllabus PDFs can be downloaded from official website.

For all other textile 4th sem syllabus for diploma c15 scheme dte karnataka you can visit Textile 4th Sem Syllabus for Diploma C15 Scheme DTE Karnataka Subjects. The detail syllabus for chemical processing of textiles-i is as follows.

Pre-requisites:

Knowledge of Fibre Technology, Yarn Manufacture and Fabric Manufacture.

Course Objectives:

Understand wet preparatory process and dyeing of textiles.

Course Outcomes:

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UNIT-I: SINGEING AND DESIZING 06Hrs

Water: Classification, Impurities, Hardness, Methods of determining Hardness, Softening methods.

Singeing: Objects, Methods of singeing .

Desizing: Objects, Methods of desizing -Hydrolytic desizing methods, Oxidative desizing methods.

UNIT-II: SCOURING AND BLEACHING 14Hrs

Scouring: Objects, Saponification, Emulsification and Detergent action. Kiers: vertical kier, Horizontal kier. Scouring of cotton and wool, degumming of silk.

Bleaching: Objects, Classification, Bleaching of cotton – Bleaching powder, Sodium hypochlorite, Hydrogen peroxide, sodium chlorite. Wool Bleaching, silk Bleaching , Brightening Agents, Dupont process, Machines: J-Box-Rope and open width, Developments in bleaching ,Souring, Antichlorination, degradation of cotton during scouring and bleaching. Quality control in preparatory process.

UNIT-III: MERCERIZATION AND THEORY OF DYEING 06Hrs

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UNIT-IV: DYEING OF CELLULOSIC FIBRES 12Hrs

Direct Dyes: Chemical constitution of direct dyes, Substantively of direct dyes, Action of electrolytes, Applications of direct dyes on cellulosic, protein fibers. After treatments.

Reactive dyes: Application of dichlorotriazinyl dyes at low temperatures and monochlorotriazinyl dyes at high temperatures, by batch and continuous methods. Description of the Remazol, Primazine ard Levafix dyes.

Vat Dyes: Classification of vat dyes based on method of application, properties and applications, solublized vat dyes, after treatments.

Sulphur Dyes: Properties and application, after treatment.

Azoic Dyes: Development of Napthal derivatives, Diazotization, coupling and application. Natural dyes: Properties and application.

UNIT-V: DYEING OF PROTEIN AND SYNTHETIC FIBRES 08Hrs

Basic Dyes: Chemistry and classification of basic dyes. The nature of the affinity of basic dyes for fibres. Methods of application, The fastness properties of basic dyes and their uses.

Acid Dyes: The chemical nature, classification, and application of acid dyes. Application of acid dyes at high temperature with dye bath assistants.

Disperse Dyes: Disperse dyes and their mechanism of dyeing. Presetting thermoplastic fibres. Methods of application on cellulose acetate, Nylon and polyester.

UNIT-VI: DYEING MACHINES 06Hrs

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Reference Books:

1. Dyeing and chemical technology of textile fibers – E.R. Trotman, SBT Publications, Ahmadabad, 1992
2. Chemical Technology of textile fibers – Chakravarthy.
3. Chemical Technology of Fibrous Materials – MIR Publications, Moscow 1988
4. Technology Of Dyeing – V.A. Shenai
5. Dyeing of Cotton, Wool, Silk – R.S. Prayag

LIST OF SOFTWARE/LEARNING WEBSITES

• http://nptel.ac.in/
• https://www.youtube.com/
• www.textilelearner.blogspot.com
• http://mytextilenotes.blogspot.in

SUGGESTED LIST OF STUDENT ACTIVITYS

Note: the following activities or similar activities for assessing CIE (IA) for 5 marks (Any one)

1. Each student should do any one of the following type activity or any other similar activity related to the course and before conduction, get it approved from concerned Teacher and HOD.
2. Each student should conduct different activity and no repeating should occur

1. Observe water softening units in wet processing industry and submit hand written report.
2. Make a report on latest desizing methods used in industry.
3. Make a report on eco friendly scouring
4. Compare different types bleaching agents available in market and submit hand written report.
5. Collect various details of synthetic dyes used in industry and compare their properties and submit hand written report.
6. Make a survey surrounding of your institute for available resources of natural dyes and submit hand written report.

Course Delivery:

The course will be delivered through lectures and presentations.

Model Question Paper:

(CIE)

1. Why singeing is essential? Briefly explain
2. Explain gas singeing machine with neat sketch OR

Explain enzymatic desizing considering its merits and limitations

3. Write a note on chemistry of scouring OR Write a note on Chemistry of bleaching
4. Explain with neat sketch vertical Kier boiling

Model Question Paper:

PART-A

1. Describe the methods used for hardness determination
2. Draw the line diagram of a hot plate singeing machine
3. How will you carryout eco-friendly bleaching?
4. Differentiate between slack and tensioned mercerization.
5. How is the luster of cotton material improved after mercerization?
6. Classify reactive dyes by their chemical structure.
7. Write a note the functions of the auxiliaries used in vat dyeing?
8. Explain the application of metal complex dye on silk.
9. Outline the major features of a padding mangle.

PART-B

1. Explain the mechanism of the scouring and bleaching process?
2. Explain with sketch continuous scouring and bleaching.
1. Analyze the effect of improper desizing in subsequent processes. 5
2. Compare the wet process sequence of cotton and wool fabrics 5
1. Explain the significance of mercerization. 5
2. Explain theories of dyeing. 5
1. Explain the steps involved in the application of a reactive dye to a cellulose material.5
2. Explain the mechanism involved in dyeing of cotton using direct dye. 5
6. Explain the application of sulphur dye on cotton fabric
7. Explain application of vat dye on cotton.
1. Write a note on functions of the auxiliaries used in acid dyeing? 5
2. How do you apply of basic dye on protein fibers. 5
1. Explain the steps in the HTHP method of PET fiber dyeing. 5
2. Explain the application of acid dye on protein fibers. 5
10. Explain working of jigger dyeing machine with sketch.

For detail syllabus of all other subjects of BE Textile, C15 scheme do visit Textile 4th Sem syllabus for C15 scheme.

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