Topic outline

  • Welcome to Fabric Manufacturing-2

    • Instructor Name                  : Engr. Asit Ghosh

      Designation                       : Assistant Professor

      Office Address                  : Room-710, Main Building, DIU

      Contact No                       : 01741886680

      Email                                 : asit@daffodilvarsity.edu.bd 

      Education                         : M.Sc, University of Boras, Sweden & B.Sc, BUTEX


    • Course  Rationale:

      This subject aims to develop students with an in-depth knowledge of weaving and knitting technology and explicate the students’ understanding on the textile sector of Bangladesh with current and future trend.

    • Course Objectives:

        By the end of this course student will be able to

      • Demonstrate expertise about various types of shedding, picking, beat-up, let-off and take-up  mechanisms
      • Get clear concepts on single jersey knitting machine and its knitting action
      • Acquire clear concepts on double jersey knitting machine (rib and interlock) and its knitting action
      • Learn basic terminology, classes of warping knitting machine and working principle of Tricot and Rachel knitting machine.

    • Course Outcomes (CO’s):

      CO 1       : Able to know about the basic difference between weaving and knitting.

      CO2        : Able to demonstrate different motion of loom.

      CO3        : Able to calculate production of loom.

      CO4        : Able to identify any faults & remedies related to weaving & knitting.

      CO5        : Able to produce any design for knitting machine.

      CO6        : Able to identify different knit fabric.

    • Grading Scheme

      Theory Class                                                                                                Lab Class
      Attendance: 7%                                                                                           Attendance: 10%                        
      Class Tests/Quizzes: 15%                                                                         Lab performance Test: 40%      
      Assignment: 5%                                                                                           Lab problem Solving: 25%
      Presentation (using video/ppt): 8%                                                          Lab Submission: 25%
      Midterm Exam: 25%
      Final Exam: 40%

    • Text Book:

      a. Weaving Technology  ( 3 rd Edition, Manchester Publication,2017) ISBN: 97845812455, (Authors: V. Gordeev, P. Volkov, I. Blinov & M. Svyatenko)

      b. Knitting Technology by David J. Spencer.

    • Reference Books:

      • Yarn Preparation by R Sen Gupta, Vol. II and I        
      • Warping and Sizing by BTRA
      • Weaving Calculation by WIRA 
      • Circular Knitting by Iyar,  Mammel and  Schach


  • Introduction



    Course Content:

    Chapter one                   :Introduction to Weaving

    Chapter Two                  :Shedding:

    Chapter Three               :Picking:

    Chapter Four                 :Beating:

    Chapter Five                  :Take-up and Let-off mechanisms:

    Chapter Six                      : Knitting Technology

    Chapter Seven                : Study of weft knitting machine Hosiery

    Chapter Eight                  : Basic warp knitting principles: 

  • Week 1

  • Week 2

    First Primary motion

    • Lesson 1

      In this lesson, we will discuss different shedding mechanism, Tappet shedding principle ,  scope of tappet shedding, advantage of tappet shedding. 

      Lecture Content

      Video Recording

    • Lesson 2

      In this lesson, we will discuss Dobby shedding principle, classification, scope of Dobby shedding, scope of Jacquard shedding, compare Tappet, Dobby and Jacquard shedding.

      Lecture Content

    •                                     DP & Tappet Shedding
                                                    Day                                                                                 Evening                                                       
                                Video Lecture_Dwell Period                         Video Lecture_Dwell Period
                             Video Lecture_ Tappet Shedding                       Video Lecture_Tappet Shedding 

    • Understanding of Shedding Forum

      Write down the motions of loom.

      Primary and secondary motions .

  • Week 3

    Primary motion

  • Week 4

    • Lesson 1

      In this lesson, we will discuss about take up motion, classification of take up motion, 7 wheel take up motion, loom constant, pick spacing etc. 

      Lecture content

    • Lesson 2

      In this lesson, we will discuss about loom spacing, loom constant, electronic take up motion. calculation of PPM and PPI for loom. 

      Lecture content

    •                                           Pick & Beat
                                                    Day                                                                       Evening                                                
                                Video Lecture_Picking                        Video Lecture_Picking
                            Video Lecture_  Beating UP                       Video Lecture_Beating UP
    • Quiz 2

      Picking 
      Beating 

  • Week 5

  • Week 6

    • Revision of Week 1 to Week 5.

                              & 

      Review of primary motions and secondary motions in looms, defects and remedies of woven fabric. Problems related to loom and solution. Discuss on Midterm examination. 

  • Week-07 Mid-Term Examination

                                                               

    • Mid Term Syllabus

      Week-01 to Week-06

      • Introduction to weaving
      • Shed & Shedding
      • Picking & Beating
      • Take up and Let off
      • Mathematical problem related to loom.


    • Midterm_Part1 Quiz

      Answer all the question:

    • Midterm_part2 Quiz

      Answer all the question:


  • Week 8

  • Week 9

  • Week 10

  • Week 11

    • Lesson 1

      In this lesson, we will discuss classes of warp knitting machinery, tricot and raschel machines, knitting cycle of bearded needle tricot and single needle bar raschel machines.

      Lecture content

    • Lesson 2

      In this lesson, we will discuss compound needle warp needle machine, Crochet machine, warping, Tricot structure with two full set guide bar machine and its product, Rules for locknit, Tricot, sharkskin etc. fabric production.

      Lecture content

    •                                                            Knitting

                                                  Day                                                                                    Evening                                                
                              Video Lecture_Warp knit                         Video Lecture_Warp Knit
                              Video Lecture_ Knit Math                          Video Lecture_Knit math
    • Understanding of warp knitting Forum

      Write down the differences between  warp knitting and weft knitting.

  • Week 12

  • Week 13

    • Review of Week 8 to Week 11

      • Revision of Weft knitting
      • Revision of Warp knitting

      • Calculation related to weft and warp knitting


    • Discussion on the following topic Forum

      • Discuss on final exam 
      • Discuss on final syllabus
      • Discuss on week 8 to week 12 content if you have any problem and confession. 

    • Special Quiz

      Knitting Technology

  • Week-14 Final Assessment

                                                           

    • Final Assessment Syllabus:

      • Take up motion
      • Let off motion
      • Weft knitting
      • Warp knitting
      • Hosiery 

    •                                                       End of the Semester.Thank You!! 


  • Fabric Manufacturing-II lab



    Course Objective:

    The course is designed to enhance the practical knowledge of the students and to make a bridge between the theoretical and practical areas of fabric manufacturing technology.

    Content:

    Weaving:

    • Study on plain power shuttle loom, study on gearing diagram of plain power shuttle loom and calculate the rpm of bottom shaft and crank shaft, draw and discuss on tappet shedding mechanism, experiment on Dobby shedding mechanism, experiment on side lever under picking mechanism, study on crank and crank arm beat up mechanism, experiment on let off mechanism of plain power shuttle loom, study on 7-wheel take up mechanism and calculate the PPI of plain power shuttle loom.

    Knitting:

    • Study on the function of VDQ pulley of circular knitting machine, experiment on positive feeder of circular knitting machine, experiment on take down mechanism of circular knitting machine, calculate the production of single jersey circular knitting machine (assume the necessary data).


    Experiment Index:

    Experiment 01: Study on Lay-out Plan of Fabric Manufacturing –II lab.

     Experiment 02: Study on Passage diagram of plain power shuttle loom.

     Experiment 03: Study on Gearing diagram of plain power shuttle loom.

     Experiment 04: Study on Picking mechanism of plain power shuttle loom.

     Experiment 05: Study on Beat-up mechanism of plain power shuttle loom.

     Experiment 06: Study on Seven wheel take up mechanism of plain power shuttle loom and PPM calculation.

     Experiment 07: Study on different part of single jersey circular knitting machine.

     Experiment 08: Study on passage diagram of single jersey circular knitting machine.

     Experiment 09: Study on gearing diagram of jersey circular knitting machine.

     Experiment 10: Study on VDQ pulley mechanism and relation between VDQ pulley, stitch length and GSM.


  • Topic 17