Basic Textile Chemical Processing detailed Syllabus for Textile Technology (DTT), C18 curriculum has been taken from the TSSBTET official website and presented for the diploma students. For Course Code, Course Name, Lectures, Tutorial, Practical/Drawing, Internal Marks, Max Marks, Total Marks, Min Marks and other information, do visit full semester subjects post given below.
For all other Diploma in Textile Technology (DTT) Syllabus for 3rd Sem C18 Curriculum TSSBTET, do visit Diploma in Textile Technology (DTT) Syllabus for 3rd Sem C18 Curriculum TSSBTET Subjects. The detailed Syllabus for basic textile chemical processing is as follows.
Prerequisites:
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Course Outcome:
- Outline the process sequence for preparation of textile before wet processing
- Explain singeing, desizing and scouring of cotton textiles
- Explain the process of bleaching and mercerising the cotton textiles
- To classify dyes and outline the general mechanism of dyeing
- To describe the process of applying various dyes on cotton
- To identify different types of dyeing machines
Unit 1. Introduction
Requirements of water for chemical processing of textiles-Difference between hard water and soft water -Difference between temporary hardness and Permanent hardness – Zeolite process of removing water hardness – mechanism of wetting textile material-functions of soaps and detergents in wet processing-Name some anionic, cationic and non ionic surface active agents-Draw the wet processing flow chart for cotton and define each process-Tabulate the sequence of chemical preparatory treatments for the textiles made by different types of fibres-sequence of wet processing for yarns, woven fabrics and knitted fabric-commonly used chemicals in wet processing of textiles along with chemical formulae and the process in which they are used- effect of PH on different textile fibres-some sequestering agents / chelating agents
Unit 2. Singeing, Desizing and Scouring
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Unit 3. Bleaching and Mercerising
Objects of Bleaching and mercerising-commonly used bleaching agents for textiles-process of hypochlorite (Sodium /Calcium) bleaching- demerits of hypochlorite bleaching-merits of peroxide bleaching-properties and chemical behaviour of Hydrogen Peroxide.-Stabilizers used for hydrogen peroxide- Strength of Hydrogen Peroxide-Continuous bleaching using Vapour loc machine-Continuous Scouring and Bleaching by Using J-Box.- principle of bio bleaching using enzymes-principle of ozone bleaching-principle of combined scouring and bleaching-principle of bleaching coloured woven fabrics-methods of testing bleached fabricprinciple of Mercerizing cotton -process of Yarn mercerization-process of woven fabric mercerization-process of mercerizing knitted fabrics- tests for mercerized fabrics-process sequence of combined scouring, bleaching and mercerising- principle of foam preparatory process-principle of liquid ammonia treatment – eco friendly approaches to the pre treatments
Unit 4. Basics of Dyes and Dyeing
General characteristics of dyes-essential properties of dye stuffs-Classify dyes based on chemical nature-Classify dyes as per application- general characteristics and properties of dyes-Tabulate applicability of various dyes on different fibres-characteristics of dyeingCompare Dyes and Pigments-natural dyes of different origin-differences between natural and synthetic dyes- advantages and disadvantages of natural dyes-sources of natural dyes-some important natural dyes- different forms of textiles used for dyeing and colouration-different types of dyeing based on form of textiles-Tabulate the functional groups in textile fibres responsible for dyeing-Tabulate the % swelling of textile fibres in water- forces responsible for dye fixation on fibres- dye bath interactions during dyeing of textiles- role of additives in dyeing – general mechanism of dyeing- process of batch dyeing-process of continuous dyeing-Define the general terms used in dyeing -Tabulate the identifying features, advantages, disadvantages of fibre dyeing, yarn dyeing, fabric dyeing and product dyeing- colour fastness ratings to light and wash
Unit 5. Dyeing of Cotton
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Unit 6. Dyeing Machinery
Essential requirements of dyeing machinery-package dyeing machine used for loose cotton -advantages and disadvantages of loose cotton dyeing- Hank dyeing machine -Cheese dyeing machine -Beam warp dyeing machine – principle of Jigger dyeing machines -principle of Winch dyeing machines -construction and working of HTHP Beam dyeing machine -construction and working of Soft flow jet dyeing machine -garment dyeing using paddle dyeing machine -garment dyeing using Rotary dyeing machine – garment dyeing using Tumbler dyeing machine – principle of 3 bowl padding mangle -different methods of water extraction from the wet fabric – principle of centrifugal hydro extractor – different methods of fabric drying
Specific Learning Outcomes
Introduction
- State the requirements of water for chemical processing of textiles
- Difference between hard water and soft water
- Difference between temporary hardness and Permanent hardness
- Explain the Zeolite process of removing water hardness
- Explain the mechanism of wetting textile material
- State the functions of soaps and detergents in wet processing
- Name some anionic, cationic and non ionic surface active agents
- Tabulate the sequence of chemical preparatory treatments for the textiles made by different fibres
- Write the sequence of wet processing for yarns, woven fabrics and knitted fabric
- Tabulate commonly used chemicals in wet processing of textiles along with chemical formulae and the process in which they are used
- State the effect of PH on different textile fibres
- List some sequestering agents / chelating agents
Singeing, Desizing and Scouring of Cotton Textiles
- Write the objects of grey testing, stamping, mending and stitching
- State the principle of shearing and cropping
- Singeing
- Explain the process of singeing by plate, roller and Gas
- Write the precautions to be taken during singeing
- State the principle of singeing tubular fabric
- Desizing
- State the objects of desizing
- classify methods of desizing
- Explain the acid steeping methods Desizing
- Explain the method of continuous enzymatic desizing method
- State the principle of continuous oxidative desizing method
- Explain the desizing by low temperature plasma treatment
- Explain method of evaluating desizing efficiency
- Scouring
- State the objects and methods of scouring
- Mention the chemicals used in scouring and their role in it
- Describe the process of Batch wise scouring using Kier
- Describe the continuous scouring process using J box
- Explain the principle of hank yarn scouring using tank
- Explain the method of package yarn scouring
- List the precautions to be taken during Scouring
- Explain the developments in scouring -solvent scouring and bio scouring
- State the principle of scouring coloured goods
- State the principle of combined desizing and scouring
Bleaching & Mercerising
- State the objects of Bleaching and mercerising
- List commonly used bleaching agents for textiles
- Explain the process of hypochlorite (Sodium /Calcium) bleaching
- State the demerits of hypochlorite bleaching
- Write the merits of peroxide bleaching
- Write the properties and chemical behaviour of Hydrogen Peroxide.
- List the stabilizers used for hydrogen peroxide
- Express the Strength of Hydrogen Peroxide
- Explain Continuous bleaching using Vapour loc machine
- Explain Continuous Scouring and Bleaching by Using J-Box.
- Explain the principle of bio bleaching using enzymes
- Explain the principle of ozone bleaching
- State the principle of bleaching coloured woven fabrics
- Mention the methods of testing bleached fabric
- State the principle of Mercerizing cotton
- Explain the process of Yarn mercerization
- Explain the process of woven fabric mercerization
- Explain the process of mercerizing knitted fabrics
- Mention the tests for mercerized fabrics
- Write the process sequence of combined scouring, bleaching and mercerising
- State the principle of foam preparatory process
- Sate the principle of liquid ammonia treatment
- Discuss eco friendly approaches to the pre treatments
Basics of Dyes and Dyeing
- Colouring matter
- List the general characteristics dyes
- Classify dyes based on chemical nature and application
- Explain general properties of dyes
- Tabulate applicability of various dyes on different fibres and state the characteristics of dyeing
- Compare Dyes and Pigments
- List the natural dyes of different origin
- Write the sources of natural dyes
- List the differences between natural and synthetic dyes
- State the advantages and disadvantages of natural dyes
- Explain about some important natural dyes
- Understand the general mechanism of dyeing
- List different forms of textiles used for dyeing and colouration
- Explain different types of dyeing based on form of textiles
- Tabulate the functional groups in textile fibres responsible for dyeing
- Tabulate the % swelling of textile fibres in water
- Explain the forces responsible for dye fixation on fibres
- Explain the dye bath interactions during dyeing of textiles
- Explain the role of additives in dyeing
- Explain the general mechanism of dyeing
- Explain the process of batch dyeing
- Explain the process of continuous dyeing
- Define the general terms used in dyeing
- Tabulate the identifying features, advantages, disadvantages of fibre dyeing, yarn dyeing, fabric dyeing and product dyeing
- Specify the colour fastness ratings to light and wash
Dyeing of Cotton
- Explain the process stages involved in application of direct dyes
- Mention the after treatments for direct dyed cotton
- Explain the procedure of application of cold brand reactive dyes
- Explain the procedure of application of hot brand reactive dyes
- Explain the process stages involved in application of sulphur dyes
- Causes of bronzing of sulphur dyes material
- Mention the methods of removing bronziness
- Explain the meaning of tendering of sulphur black
- Explain the process stages involved in application of Vat dyes
- Explain the process stages involved in application of solubilised Vat dyes
- Explain the process stages involved in application of Azoic dyes
- Explain the process stages in application of oxidation colours
Dyeing Machinery
- Write the essential requirements of dyeing machinery
- Fibre dyeing machines
- Explain package dyeing machine used for loose cotton
- State the advantages and disadvantages of loose cotton dyeing
- Explain following Yarn dyeing machines
- Hank dyeing machine
- Cheese dyeing machine
- Beam warp dyeing machine
- Fabric dyeing machines
- Explain the working principle of Jigger dyeing machines
- Explain the working principle of Winch dyeing machines
- Explain the construction and working of HTHP Beam dyeing machine
- Explain the construction and working of Soft flow jet dyeing machine
- Garment dyeing
- Explain the garment dyeing using paddle dyeing machine
- Explain the garment dyeing using Rotary dyeing machine
- Explain the garment dyeing using Tumbler dyeing machine
- Explain the working principle of 3 bowl padding mangle
- Mention different methods of water extraction from the wet fabric
- Explain the working principle of centrifugal hydro extractor
- Mention different methods of fabric drying
Suggested Student Activities
For the complete Syllabus, results, class timetable, and many other features kindly download the iStudy App
It is a lightweight, easy to use, no images, and no pdfs platform to make students’s lives easier..
Recommended Books
- Science and Technology of Textile dyeing and Coloration – S.P.Mishra
- Technology of Textile Processing Vol.1 to 5 — V.A SHENAI
- Technology of Textile Processing Vol.1 to 2 — R.S. Prayag
- Bleaching Dyeing and Chemical Technology of Textile Fibres — E.R Trotman
- Textile Chemical Processing – SSM Institute
Suggested e – Learning Resources
- www.nptel.ac.in
- www.textilelearner.blogspot.com
- https: //www .onlinetextileacademy.com
- https://www.slideshare.net
- https://textilechapter.blogspot.com
- https: //www .onlinetextileacademy.com
For detail Syllabus of all other subjects of Textile Technology, C18 curriculum do visit Diploma In Textile Technology 3rd Sem Syllabus for C18 curriculum.
For all Textile Technology results, visit TSSBTET DTT all semester results direct links.