Dhaka University of Engineering & Technology, GazipurDepartment Of Textile Engineering

(Textile Testing and Quality Control – I) 3rd Year 2nd Semester

Course Outline

Credit Hours : 3 (THREE)

Course Code : TE-3601

Class Hours : Sunday: 11.30-12.20Tuesday:09.20-10.10

Course Teacher: Md. Delwar Hossain

Text Book:01. Physical testing of textiles

By B P SavilleReference Book:01. Textile Testing

By John H. Skinkle02. Textile Testing

By P.Angappan & R Gopalakarishnan03. Textile Testing

By Booth

Suggested Readings:The students are suggested to read recent journal on textile, to view different web site and if

possible they can take information from different textile processing industry.

Course Description :

Fiber testing:Introduction: Definitions of quality, quality types, quality control, quality assurance, reasons of textile testing, standardization of testing, ISO- 9000 Queries 7 orders, Calibration of test equipments, quality audits.Sampling: Introduction, purpose of sampling, principles of sampling, methods of sampling, fibre sampling from bulk, combed slivers, rovings, yarns. Yarn sampling, fabric sampling. Textiles & Moistures: Introduction, Effect of moisture on physical, mechanical properties, dimensional, electrical properties, vapor pressure, relative humidity, standard atmosphere, Moisture content and moisture regain standard moisture regain of different fibers, Relative humidity measurement of relative humidity, standard conditions for testing importance of moisture regain, methods of measurement of moisture in textiles, correct invoice weight, control of testing room.Fiber dimensions: Fiber length: Mean length, staple length, effective length, spun length, length dispersion, and short fiber %.Fineness & Maturity: Fineness and maturity of cotton, Importance in processing, Relationship between fineness and maturity, Methods of measurement and expressions of results, Maturity ratio, measurement of foreign matters in fiber sample.Fibre testing Instrument: Measurement parameters of cotton by HVI, AFIS. Discussion of HVI & AFIS test parameters- SCI, Mic, Length, Maturity Index, Uniformity Index, UHML, SFI, Strength, Elongation, Moisture, Rd, +b, color grade, trash content, trash area, fluorescence, Mean length by weight, length variation by Weight, UQL(w), SFC(w), L(n), L(n) CV%, L (n) 5%, SFC (n), Fine(mtex), MAT, IFC%, Dust(Ctn/g) , dust size, UQL(w), SFC(w), VFM%, HVI color chart of different cottons. Yarn testing:Linear density: Measurement of linear density of lap, sliver, roving and yarn, Counting systems, different methods of measurement of yarn count. Yarn Twist: Twist in yarn, Measurement of twist, Level of Twist, Amount of twist for Warp, Weft, Denim, & Knitted goods, influence of twist in fabric properties.Yarn strength: Measurement of tensile strength of yarn; single thread, skein or lea strength and ballistic test; comparison of results, CRT, CRE, and CRL machines and methods of loading.Yarn Evenness: Principles of evenness measurements, UT-5, Index of Irregularity, limit of Irregularity, Parameters of UT-5- Um%, CVm%, CV5m%, Index, thick, thin places, neps. Spectrogram analysis, Measurement by cutting and weighing methods, USTER, ZeigleG580, capacitance and other methods; length variance curves. Measurement of imperfections. Comparison of results with User statistics. Yarn Hariness: Shirley hairiness, ZwigleG565, USTER-3 measurement.

Course Format:The course will include a combination of class, discussion, lecture and student assignment (home work, quiz/Class test, presentation and semester final examination.)

Evaluation Scheme:-

Class participation 10% (Attendance, assignments and activities in the class)

Quizzes/Class Tests 20%Semester Final Examination (3 hours duration) 70%

Total=100Grading System:- University grading policy will be followed and the policy is as follows:

Numerical Grade Letter Grade Grade Point

80% or above A+ (A Plus) 4.0075% to less than 80% A (A Regular) 3.7570% to less than 75% A- (A Minus) 3.5065% to less than 70% B+ (B Plus) 3.2560% to less than 65% B (B Regular) 3.0055% to less than 60% B- (B Minus) 2.7550% to less than 55% C+ (C Plus) 2.5045% to less than 50% C (C Regular) 2.2540% to less than 45% D 2.00

Less than 40% F 0.00

CLASS POLICIES:

1. Academic misconduct:- All students are expected to complete assignments by themselves, plagiarism the presentation of work, idea or creation of another person as your own is a form of cheating and is a very serious academic offence and includes assisting or allowing another person to plagiarize or to copy your own work.

2. Class Attendance: - Attendance is a mandatory. Basis for awarding marks for class participation and attendance will be as follows:

Attendance Marks

90% or above 10%85% to less than 90% 9%80% to less than 85% 8%75% to less than 80% 7%70% to less than 75% 6%65% to less than 70% 5%60% to less than 65% 4%

Less than 60% 0%

3. Class Test: - It is a classroom test and the schedule is pre-announced by the Head. Short or MCQ type question will be provided to answer. Materials of the class test would be announced before the scheduled test date.

4. Advising and Assistance:- Students are responsible for contacting the course teacher when having trouble in understanding the handout or study material or requirement for the course during office hours.

Lecture-1Introduction: Personal Introduction- Students and Resource Person, Course Introduction and Description, Disciplinary Introduction, Enquiries/ Comments of Students

Lecture-2 Yarn testing:Linear density: Measurement of linear density of lap, sliver, roving and yarn, Counting systems,

Lecture-3 different methods of measurement of yarn count.

Lecture-4 Yarn Twist: Twist in yarn, Measurement of twist, Level of Twist, Amount of twist for Warp, Weft, Denim, & Knitted goods, influence of twist in fabric properties..

Lecture-5 Yarn Twist: Twist in yarn, Measurement of twist, Level of Twist, Amount of twist for Warp, Weft, Denim, & Knitted goods, influence of twist in fabric properties..

Lecture-6 Yarn Twist: Twist in yarn, Measurement of twist, Level of Twist, Amount of twist for Warp, Weft, Denim, & Knitted goods, influence of twist in fabric properties.

.

Lecture-7 Yarn strength: Measurement of tensile strength of yarn; single thread, skein or lea strength and

Lecture-8 Yarn strength: Measurement of tensile strength of yarn; single thread, skein or lea strength and

Lecture-9 ballistic test; comparison of results,

Lecture-10 CRT, CRE, and CRL machines and methods of loading.-I

Lecture-11 CRT, CRE, and CRL machines and methods of loading.-II

Lecture-12 CRT, CRE, and CRL machines and methods of loading.-III

Lecture-13 Yarn Evenness: Principles of evenness measurements, UT-5, Index of Irregularity

Lecture-14 limit of Irregularity, Parameters of UT-5- Um%, CVm%, CV5m%, Index, thick, thin places, neps.

Lecture-15 Spectrogram analysis, Measurement by cutting and weighing methods

Lecture-16 USTER, ZeigleG580, capacitance and other methods;

Lecture-17 length variance curves. Measurement of imperfections.

Lecture-18 Comparison of results with User statistics

Lecture-19 Yarn Hariness: Shirley hairiness

Lecture-20 , ZwigleG565,

Lecture-21 USTER-3 measurement

Lecture-22 Review ClassLecture-23 Review ClassLecture-24 Review ClassLecture-25 Review Class

Md. Delwar Hossain Lecturer Dept of Textile Engineering