Section outline

  • Welcome Note (Visitor's Guideline)

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  • Course Introduction

    Wet processing is one of the major streams in Textile Engineering refers to textile chemical processing engineering and applied sciences.Wet process is done on fiber, yarn, fabric and garments. The processes of this stream is involved or carried out in aqueous stage and thus it is called wet process which usually covers pretreatment, dyeing, printing and finishing.

    All of these stages are required aqueous medium which is created by water. A massive amount of water is required in these processes per day. It is estimated that, on an average, almost 100 liter of water is used to process only 1 kg of textile goods. Water can be of various quality and attributes. Not all water can be used in the textile process, it must have some certain properties, quality, color & attributes for being used in textile processes. That is why water is a prime concerned in wet processing engineering.

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    Course Objectives:

    After the completion of this course, students will be able to-

    • Learn in-details about dyeing process of textiles with reactive, sulphur, azoic and disperse dyes by using discontinuous and continuous methods.
    • Know about printing process of woven and knit fabrics with reactive, sulphur, azoic and disperse dyes by using different methods, including block, screen and roller printing methods.
    • Attain knowledge about important chemical and mechanical finishes, such as textile mercerization, resin finishing, water repellent finishing and shearing process.

    Course Content:
    Technology of Dyeing:
    Reactive Dye
    Sulphur Dye
    Azoic Color
    Disperse Dye
    Technology of Printing:
    Printing process: Woven and knit fabrics with reactive, sulphur, azoic and disperse dyes
    Printing Methods: Block, screen and roller printing methods
    Technology of Finishing:
    Mercerization
    Resin finishing
    Water repellent finishing and
    Shearing process

  • Counseling Hour for Students & Appointment Taking Process


  • Class Routine & Link for Online Class

    TE 321: Textile Wet Processing-II (Section: L2T2-GC)

    Class Schedule: {Tue: (7:30-8:20) Wed: (7:30-8:20) Tue: (8:20-9:10)}
    Google Meet Link: meet.google.com/mbb-qonp-cyp

     

    TE 321: Textile Wet Processing-II (Section: L2T2-CC)

    Class Schedule:{Sun: (7:30-8:20) Sun: (8:20-9:10) Mon: (6:40-7:30)}
    Google Meet Link:  meet.google.com/vuy-ogcg-iwk

  • Lecture 1: Introductory Class (Welcome Class)

    Objectives:

    1. To know about their course instructor in brief

    2. To get brief description about the course including its importance

    3. To get familiar with the rules & regulations

    Outcomes:

    1. Students will get idea about the course instructor

    2. Students will learn about what they are actually going to achieve from this course.

    3. They will know about how they will walk with this course.

    Lecture Content:

    Brief description about the course and instructor, Rules & Regulations, etc.

    Video Lecture 1:

    • resource icon
      Supportive Material for Lecture 1 File
      Students must
      Mark as done
    • forum icon
      Discussion Forum for Lecture 1
      Students must
      View
      Make forum posts: 1

      Dear Students, Please don't hesitate to ask me any kind of questions here after completing the lecture.


    • quiz icon
      Quiz on Lecture 1: Class Feedback
      Students must
      Mark as done

      Dear Students,

      Spend 5 minutes to judge your understanding the Lecture


  • Lecture 2: Essential Terms of Textile Wet Processing-Review on Basic

    Objectives:

    1. To know Textile & Textile Wet Processing

    2. To know about important definitions for Textile Wet Processing

    Outcomes:

    1. Students will get idea about the word 'Textile' and "Textile Wet Processing".

    2. Students will learn about essential terms regarding Textile Wet Processing

    Lecture Content:

    Textile, Textile Wet Processing, Necessary Terms & Definitions

    Video Lecture 2:


    • resource icon
      Supportive Material for Lecture 2 File
      Students must
      Mark as done
    • forum icon
      Discussion Forum for Lecture 2
      Students must
      Make forum posts: 1

      Dear Students, Please don't hesitate to ask me any kind of questions here after completing the lecture.

    • quiz icon
      Quiz on Lecture 2: Class Feedback
      Students must
      Mark as done

      Dear Students, Spend few minutes to judge your understanding the lecture.

  • Lecture 3: Flow Chart of Textile Wet Processing for Woven Fabric-Review on Basic

    Objectives:

    1. To know about the Preparatory stages of dyeing woven fabric

    2. To learn about the stages of wet processing of woven fabric in brief

    Outcomes:

    1. Students will get idea about the Preparatory stages of dyeing woven fabric

    2. Students will learn about the purposes of every stages of wet processing of woven fabric

    Lecture Content:

    Flow Chart of Textile Wet Processing for Woven Fabric, Objectives of every stages, Preparatory stages of woven fabric dyeing

    Video Lecture 3:


    • resource icon
      Supportive Material for Lecture 3 File
      Students must
      Mark as done
    • forum icon
      Discussion Forum for Lecture 3
      Students must
      Make forum posts: 1

      Dear Students, Please don't hesitate to ask me any kind of questions here after completing the lecture.

    • quiz icon
      Quiz on Lecture 3: Class Feedback
      Students must
      Mark as done

      Dear Students, Spend few minutes to judge your understanding the lecture.

  • Lecture 4: Flow Chart of Textile Wet Processing for Knit Fabric-Review on Basic

    Objectives:

    2. To know about the purposes of every stages of wet processing of knit fabric

    2. To learn about the Preparatory stages of dyeing knit fabric


    Outcomes:
    1. Students will get idea about the Preparatory stages of dyeing knit fabric

    2. Students will learn about the purposes of every stages of wet processing of knit fabric

    3. Students will learn about the difference between Flow Chart of Textile Wet Processing for Woven Fabric & Knit Fabric

    Lecture Content:

    Flow Chart of Textile Wet Processing for Knit Fabric, Objectives of every stages, Preparatory stages of Knit fabric dyeing, Difference between Flow Chart of Textile Wet Processing for Woven Fabric & Knit Fabric

    Video Lecture 4:


    • resource icon
      Supportive Material for Lecture 4 File
      Students must
      Mark as done
    • forum icon
      Discussion on Lecture 4 Forum
      Students must
      Make forum posts: 1

      Dear Students, Please don't hesitate to ask me any kind of questions here after completing the lecture.

    • quiz icon
      Quiz on Lecture 4: Class Feedback
      Students must
      Mark as done

      Dear Students, Spend few minutes to judge your understanding the lecture.

  • Lecture 5: Basic Concept of Dyeing, Dyeing Machine & Chemicals

    Objectives:

    1. To know fundamental concept of dyeing

    2. To learn about classification of chemicals 

    3. To get familiar with Jet dyeing machine

    Outcomes:

    1. Students will get idea about necessary particulars for dyeing a textile material

    2. Students will learn about chemicals & auxiliaries

    3. They will know about every parts of a Jet dyeing machine

    Lecture Content:

    Basic Concept of Dyeing, Classification of Chemicals, Dyeing Machine

    Video Lecture 5:


    • resource icon
      Supportive Material for Lecture 5 File
      Students must
      Mark as done
    • forum icon
      Discussion on Lecture Forum
      Students must
      Make forum posts: 1

      Dear Students, Please don't hesitate to ask me any kind of questions here after completing the lecture.


    • quiz icon
      Quiz on Lecture 5: Class Feedback
      Students must
      Mark as done

      Dear Students, Spend few minutes to judge your understanding the lecture.

  • Chapter-2: Lecture 6-10: Reactive Dyes

    Objectives:

    To learn about Reactive Dye, its classification and application on textile materials in details

    Outcomes:

    At the end of the course the students will learn about-

    Reactive Dye in details

    Fiber Suitable for Dyeing with Reactive Dye

    Procedure of Dyeing

    Limitations

    Contents: 

    Reactive Dye and its application, Classification of Dye, Properties of Dye, etc.

    Video Lecture 6:

      Contents of Lecture-6: Definition of Reactive Dye, Characteristics of Reactive Dye, Reason of Popularity of Reactive Dye


    Video Lecture 7:

      Contents of Lecture-7: Structure of Reactive Dye, Classification of Reactive Dye


    Video Lecture 8:

      Contents of Lecture 8: Chemistry of Dyeing with Reactive Dye & Controlling Parameters


    Video Lecture 9:

      Contents of Lecture 9: Process of Dyeing with Reactive Dye & Functions of Chemicals

    Video Lecture 10:

      Contents of Lecture 10: Hydrolysis of Reactive Dye & Stripping Process of Reactive Dye

  • Lecture 11: Class Test-1

    Dear Learners, Please follow all the instruction given in class regarding the examination. Good Luck.........

    Syllabus: Lecture 1 to Lecture 5
    Time: 16 minutes
    Marks: 15

  • Chapter-3: Lecture 12-14: Sulphur Dye

    Objectives:

    To learn about Sulphur Dye, its classification and application on textile materials in details

    Outcomes:

    At the end of the course the students will learn about-

    Sulphur Dye in details

    Fiber Suitable for Dyeing with Sulphur Dye

    Procedure of Dyeing

    Limitations

    Lecture Contents: 

    Sulphur Dye and its application, Classification of Dye, Properties of Dye, etc.


    Video Lecture 12:

      Contents of Lecture 12: Definition of Sulphur Dye, Properties of Sulphur Dye, Reason of Popularity for Producing Black Shade


    Video Lecture 13:

      Contents of Lecture 13: Mechanism of Dyeing with Sulphur Dye, Reducing and Oxidising Step of Sulphur Dye, After Treatment of Sulphur Dye


    Video Lecture 14:

      Contents of Lecture 14: Defects of Sulphur Dye, Stripping Process of Sulphur Dye, Comparison between Vat Dye & Sulphur Dye


  • Chapter-4: Lecture 15-17: Azoic Color

    Objectives:

    To learn about Azoic Color, its classification and application on textile materials in details

    Outcomes:

    At the end of the course the students will learn about-

    Azoic Color in details

    Fiber Suitable for Dyeing with Azoic Color

    Procedure of Dyeing

    Limitations

    Lecture Contents: 

    Azoic Color and its application, Classification of Dye, Properties of Dye, etc.

    Video Lecture 15:
       Contents of the Lecture: Azoic Color, Different Names of Azoic Color and Characteristics of Azoic Color

    Video Lecture 16:
       Contents of the Lecture: Chemistry of Azoic Color Production, Factors Affecting Diazotisation Reaction & Factors Affecting Coupling Reaction

    Video Lecture 17:
       Contents of the Lecture: Chemicals Used in Azoic Dyeing, Stripping Process and Comparison Between Azo Dyes & Azoic Dyes

  • Lecture 19: Review Class for Midterm

    Students will get clear idea about midterm examination including pattern of question, marks distribution, etc.

    Moreover, students will have a session regarding problem-solving on syllabus.

    Video Demonstration on Examination:

       Contents: How will a Student Participate in Midterm Examination?


  • Midterm Examination

    Syllabus: Introduction to Reactive Dye

    Total Marks: 25

    Instructions:

    At first, answer the First Part of the Question within any 10 minutes from 6:15 pm to 6:30 pm

    Then, answer Second Part of the Question within 120 minutes from 6:30 pm to 8:30 pm


  • Chapter-5: Lecture 20-23: Disperse Dye

    Objectives:

    To learn about Disperse Dye, its classification and application on textile materials in details

    Outcomes:

    At the end of the course the students will learn about-

    Disperse Dye in details

    Fiber Suitable for Dyeing with Disperse Dye

    Procedure of Dyeing

    Limitations

    Contents: 

    Disperse Dye and its application, Classification of Dye, Properties of Dye, etc.


    Video Lecture 20:
       Contents of the Lecture: Disperse Dye, Properties of Disperse Dye, Classification of Disperse Dye

    Video Lecture 21:
       Contents of the Lecture: Dispersing Agent, Carrier, Reduction Cleaning Process

  • Chapter-6: Lecture 24-27: Technology of Textile Printing

    Objectives:

    To learn about Printing of textile materials with modern methods and their comparison


    Outcomes:

    At the end of the course the students will learn about-

    Steps of textile printing, Functions and Types of textile thickener, Methods and Styles of textile printing.

    Details about block and screen (flat) printing methods

    Details about rotary screen and roller printing methods, Factors influencing the quality of screen printing.

    Printing of textiles with reactive dyes, azoic dyes, disperse dyes and sulphur dyes.


    Lecture Contents: 

    Printing, Modern Techniques of Printing, Printing with reactive dyes, azoic dyes, disperse dyes and sulphur dyes

  • Class Test-2 & 3

    Dear Learners, Please follow all the instruction given in class regarding the examination. Good Luck.........

    Syllabus: Reactive Dye and Disperse Dye
    Marks: 15

  • Chapter-7: Lecture 29-32: Technology of Textile Finishing

    Objectives:

    To learn about basic knowledge regarding finishing of textile materials

    To know about some chemical and mechanical finishes

    Outcomes:

    At the end of the course the students will learn about-

    Definition and Classification of textile finishing

    Details about textile mercerization process

    Details about shearing process

    Details about resin finishing

    Details about water repellency


    Lecture Contents: 

    Textile finishing, mercerization process, shearing process, resin finishing and water repellency

  • Lecture 33-34: Class Presenttion

    Students will present on a particular topic.

    Instructor will observe critically and give the students improvement plan (if any)


  • Lecture 35: Review Class for Final Examination

    Students will get clear idea about final examination including pattern of question, marks distribution, etc.

    Moreover, students will have a session regarding problem-solving on syllabus.


  • Final Examination

    Syllabus: All the contents after midterm
    Total Marks: 40
    Instruction: Please follow the instruction very carefully given in the class.

  • Assignment

    Instructions:

    • Submit your Assignment as per the instruction given in class. 

    • Do not Upload any file here. 

    • Upload your Assignment in your Google Drive and share the link here o

    • You are requested to follow the attached format in making your Assignment.


    Title of the Assignment: Dyeing of 100% Cotton Fiber with Reactive Dye

    Last Date of Submission: December 23, 2021


    • resource icon
      Sample Report File

      Dear Students, Please see the attached sample and make your report accordingly.

    • forum icon
      Submit Your Assignment Here Forum

      Dear Students, Please share the google drive link of your Assignment here.


  • Presentation

    Instruction: 

    • Submit your presentation as per the instruction given in class. 
    • Do not Upload any file here. 
    • Upload your Presentation in your Google Drive and share the link here only.


    Title of the Presentation: Dyeing of 100% Cotton Fiber with Reactive Dye

    Last Date of Submission: December 23, 2023


  • Link of Meet Recordings for All Sections

    Highlighted

    L2T2 (Section-GC-A)

    Please Click the Link for Recordings of All Classes:

    https://docs.google.com/document/d/1WEPg-gJFP2G2pTleEGPuYzTkb40oXP7QGiEVSFpUWrk/edit?usp=sharing