Section outline

  • Welcome to Fabric Manufacturing-2

    Collapse all Expand all
    • forum icon
      Announcements Forum

    • 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


    • Useful Web Links:


  • 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

    • Lesson 1

      In this lesson, we will discuss history of woven fabric, loom and chronological development of loom, modern looms, motions in loom, primary motions and secondary motion. 

      Lecture content

      Video Recording

    • Lesson 2

      In this lesson, we will discuss shed, Shedding, types of Shedding, classification of shedding mechanism, conditions of good shedding, dwell period, factors affecting dwell period.  

      Lecture content

    •                                                 Loom                     
                                               Day                                                                            Evening                                                              
                         Video Lecture _History of Loom                            Video Lecture_ History of Loom
                         Video Lecture _ Shed & Shedding                            Video Lecture_ Shed & Shedding 

    • folder icon
      Motions _Vid Folder
    • forum icon
      Understanding of loom Forum

  • 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 

    • forum icon
      Understanding of Shedding Forum

  • Week 3

    Primary motion

    • Lesson 1

      In this lesson, we will discuss picking mechanism, classification of picking mechanism, function of picking, cone over picking mechanism, under cone picking principle. 

      Lecture content

      Video Recording

    • Lesson 2

      In this lesson, we will discuss beat-up mechanism, classification of beating, function of beating, single/crank beat -up mechanism and it's principle, double beat -up mechanism

      Lecture content


    •                                    Primary Motion
                                                   Day                                                                  Evening                                         
                                     Video Lecture_1                           Video Lecture _1
                                     Video Lecture_2                           Video Lecture _2

    • assign icon
      Compare picking and beating mechanism. Which one is more essential? Please write your arguments based on the lesson. Assignment
    • quiz icon
      Quiz 1

      Answer all the questions

  • 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

    • forum icon
      Understanding of take up motion Forum
    •                                           Pick & Beat
                                                    Day                                                                       Evening                                                
                                Video Lecture_Picking                        Video Lecture_Picking
                            Video Lecture_  Beating UP                       Video Lecture_Beating UP
    • quiz icon
      Quiz 2

      Picking 
      Beating 

  • Week 5

    • Lesson 1

      In this lesson, we will discuss on let off motion, objective, function, modern looms and their let off motion, electronic let off.

      Lecture content

    • Lesson 2

      In this lesson, we will discuss on automation in weaving, production of various stripe and check fabrics, necessary calculation.

      Lecture content

    • forum icon
      Understanding of let off motion Forum
    • hvp icon
      Motions in loom Interactive Content

      Answer correctly

  • 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.


    • quiz icon
      Midterm_Part1 Quiz

      Answer all the question:

    • quiz icon
      Midterm_part2 Quiz

  • Week 8

    • Lesson 1
      In this lesson, we will discuss on knitting , definition, types of knitting machine, course, wales, stitch density, fabric draw off, classification of knitting machine, historical back ground of knitting machine.
      Lecture content
    • Lesson 2
      In this lesson, we will discuss about definition of technical term related to knitting technology, discussion on knitting machine, Principle elements of knitting machine, knitting action of latch and bearded needle
      Lecture content

    •                                                            Knitting

                                                    Day                                                                       Evening                                                
                                Video Lecture_Basic knit                        Video Lecture_Basic Knit
                               Video Lecture_ Knit terms                        Video Lecture_Knit terms
    • url icon
      Jam board _ Looping diagram URL
    • url icon
      Jam board _ looping diagram URL
    • forum icon
      Understanding of knitting terms & definition Forum

      Draw the looping diagram :

      i.  4x4  ii. 5x5  iii. 3x5

      iv. 4x2   v. 3x5  vi. 4x1

  • Week 9

    • Lesson 1

      In this lesson, we will discuss about weft knitting machine, classes of weft knitting machine, fabric machine, garment length machine.

      Lecture content

    • Lesson 2

      In this lesson, we will discuss about stitches produced by varying the timing of the needle loop intermeshing, calculation of various specifications related to machine to produce weft knitted fabric

      Lecture content

    •                                                            Knitting

                                                  Day                                                                                    Evening                                                
                              Video Lecture_Weft Knit                        Video Lecture_Weft Knit
                       Video Lecture_ timing, gaiting, math                 Video Lecture_timing, gaiting, math
    • url icon
      Jamboard URL
    • url icon
      Jamboard URL
    • forum icon
      Understanding of weft knitting Forum
    • assign icon
      Answer the following questions and submit here: Assignment

      • Show the relationship between machine gauge and yarn count.
      • Show the differences between single jersey fabric and double jersey fabric with rib gaiting, needing timing and sinker arrangement. 
      • Establish the relation between machine gauge and needle pitch.

  • Week 10

    • Lesson 1

      In this lesson, we will discuss about hosiery fabric, the manufacture of hosiery on circular machine: Types of hosiery, Classes of hosiery machines.

      Lecture content

    • Lesson 2

      In this lesson, we will discuss about different hosiery items, mechanism for welts, heels and toe production.

      Lecture content

    • forum icon
      Understanding of Hosiery product. Forum

    • Hosiery

                                                  Day Batch                                                                         Evening Batch                                  
                                        Video Lecture_Hosiery                              Video Lecture_Hosiery 

    • url icon
      Video_Hosiery URL
    • quiz icon
      Quiz 3

      Weft knitting.

  • 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
    • forum icon
      Understanding of warp knitting Forum

      Write down the differences between  warp knitting and weft knitting.

    • url icon
      Video_warp knit URL
    • hvp icon
      Knit loop diagram Interactive Content

  • Week 12

    • Presentation week:

      • Preparation and guideline for the presentation. 
      • Presentation conduction. 

    • assign icon
      Submit here Assignment

  • Week 13

    • Review of Week 8 to Week 11

      • Revision of Weft knitting
      • Revision of Warp knitting

      • Calculation related to weft and warp knitting


    • forum icon
      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. 

    • quiz icon
      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