312337: Pretreatments of Textile Substrates Syllabus for Textile Technology 2nd Sem K - Scheme MSBTE

Pretreatments of Textile Substrates detailed Syllabus for Textile Technology (TC), K – scheme has been taken from the MSBTE official website and presented for the diploma students. For Subject Code, Subject Name, Lectures, Tutorial, Practical/Drawing, Credits, Theory (Max & Min) Marks, Practical (Max & Min) Marks, Total Marks, and other information, do visit full semester subjects post given below.

For all other MSBTE 2nd Sem Syllabus K – Scheme Textile Technology, do visit MSBTE 2nd Sem Syllabus K – Scheme Textile Technology Subjects. The detailed Syllabus for pretreatments of textile substrates is as follows.

Rationale

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Course Outcomes:

Students will be able to achieve & demonstrate the following COs on completion of course based learning

Select the relevant mechanical process to remove the impurities from textiles.
Use the relevant desizing process to remove size from the textile.
Use the relevant scouring process to remove hydrophobic impurities from the textile.
Use the relevant bleaching process to improve the whiteness of the textile.
Select the relevant mercerization process to improve the luster of cotton.

Unit I

Mechanical preparatory processes 1.1 Mechanical Pretreatments: Importance, Objective, Machine used. 1.2 Pretreatment sequences: cotton fabric, polyester fabric, polyester / cotton blended fabric, wool fabric and silk fabric. 1.3 Grey fabric inspection: Objective, Faults in grey fabric- Criteria of four-point system, Criteria of ten-point system, Calculation based on four point and ten point system, Criteria for rejection. 1.4 Shearing and cropping machine: Construction and working of Shearing and cropping machine. 1.5 Singeing: Importance, objective, types, Traditional singingmethod[IKS], Construction and working principle of gas singeing machines.
Suggested Learning Pedagogy Chalk-Board Presentations Site/Industry Visit

Unit II

Unit III

Scouring 3.1 Scouring: Importance, Objective, Mechanism and Reactions. 3.2 Methods: Introduction to alkaline, detergent, Emulsion and solvent scouring. 3.3 Alkaline Scouring process: cotton, polyester and their blends in various machine (Kier, J-box). 3.4 Scouring of wool and degumming of silk. 3.5 Evaluation of scouring process efficiency by absorbency method.
Suggested Learning PedagogyChalk-Board Presentations Video Demonstrations Site/Industry Visit

Unit IV

Bleaching 4.1 Objective of bleaching, Sodium hypochlorite bleaching: Purpose, Mechanism, Procedure for cotton, Factors affecting, Advantages and disadvantages. 4.2 Hydrogen peroxide bleaching: Objective, Classification, Mechanism, Factors affecting, Role of stabilizer, Process for cotton, Polyester and their blends, Comparison between H2O2 and NaOCl bleaching. 4.3 Sodium chlorite bleaching: Mechanism, Procedure for polyester. 4.4 Bleaching procedure for wool and Silk. 4.5 Bleaching machines: Jigger, PTR. 4.6 Evaluation of bleaching efficiency: Whiteness index methods.
Suggested Learning Pedagogy Chalk-Board Presentations Video Demonstrations Site/Industry Visit

Unit V

Practical / Tutorial Experiences

* Use four point and ten-point inspection system to identify faults in the given fabric.
Use pilling tester to identify pilling tendency of the given fabric before and after singeing
Use relevant method to find moisture content, ash content and total dissolved solids in the given starch sample.
Use relevant chemicals to identify the size on textile material.
* Use acid desizing and enzyme desizing method to remove size on the given textile.
* Use open bath scouring method to improve the absorbency of the given cotton fabric.
* Use pressure boil scouring method to improve the absorbency of the given cotton fabric.
* Use relevant scouring method to remove hydrophobic impurity from the given polyester and its blend.
Use relevant degumming method to remove Sericin from the given silk fabric.
* Use hypochlorite bleaching method to improve whiteness of the given cotton fabric.
* Use hydrogen peroxide bleaching method to improve whiteness of the given cotton fabric.
Use combined scouring and bleaching method to improve absorbency and whiteness of the given cotton fabric.
Use relevant bleaching method for the given polyester and its blends.
* Use open bath bleaching method for the given wool and silk fabric.
* Use hank mercerization method for the given cotton hank.
* Determine Barium Activity Number (BAN) of the given mercerized goods.

Note : Out of above suggestive LLOs – ‘*’ Marked Practicals (LLOs) Are mandatory. Minimum 80% of above list of lab experiment are to be performed. Judicial mix of LLOs are to be performed to achieve desired outcomes.

Micro Project / Self Learning

Assignment

List the acids used in various textile pre-treatments. Write the role of chemicals in a particular process. State its properties. Suggest alternative chemicals.
List the alkali used in various textile pre-treatments. Write the role of chemicals in a particular process. State its properties. Suggest alternative chemicals.

Micro project

Find the relation between various bleaching parameters on the whiteness and strength of any four qualities of the fabric. Present the results.
Video preparation: – Visit the local industry and prepare a video of any one machine used for the preparation of fabric.
Comparison: Compare the effect on dyeing of mercerize and un-mercerize fabric dyed with reactive dye.
Comparison: Compare the effect on dyeing of bleached and unbleached samples dyed with reactive dye.
Collection of samples: – Visit the local industry and collect defective samples or photos of them. Prepare a presentation incorporating the photos and types of defects.
Size identification: – Visit the local industry to collect the various size fabric samples. Identify the size present on it and write a report.
Collection of pre-treated samples: Collect pre-treated samples at various stages. Write a report on changes that take place at every stage.

Laboratory Equipment / Software Required

Learning Materials / Books

Karmakar, S. R. Chemical Technology in the Pretreatment Processes of Textile Elsevier Science Publication, Netherlands, 1999, ISBN: 9780444500601
Datye, K. V. and Vaidya, A. A. Chemical Processing of Synthetic Fibres and Blends Wiley-Blackwell, New York, 1984, ISBN: 9780471876540
Choudhary, A. K. R. Textile Preparation and Dyeing Science Publishers, Enfield, NH, USA, 2006, ISBN: 9781578084043
Goswami, B. C.; Anandjiwala, R. D. Textile Sizing CRC Press, 2004, ISBN: 9780203913543
Haywood, D. Textile Finishing Bradford, Eng. : Society of Dyers and Colourists, 2003, ISBN: 9780901956811

Learning Websites & Portals

https://nptel.ac.in/courses/116102016 NPTEL Textile chemical Processing: Theory and practice of Preparatory Processes, IIT Delhi, Dr. B S
https://nptel.ac.in/courses/116102005 NPTEL Fabric Manufacture – I, IIT Delhi Dr. Abhijit Majumdar
https://www.fibre2fashion.com/industry-article/79/latest-met hods-of-cotton-bleaching bleaching of textile open education resources
https://www.youtube.com/watch?v=e1M1W49pu-Q Industrial bleaching process
https://www.youtube.com/watch? v=9YuZ89ZCWJQ Scouring of textile (Video)

For detail Syllabus of all other subjects of Textile Technology, K – scheme do visit Textile Technology 2nd Sem Syllabus for K – scheme.

For all Textile Technology results, visit MSBTE Textile Technology all semester results direct links.

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312337: Pretreatments of Textile Substrates Syllabus for Textile Technology 2nd Sem K – Scheme MSBTE