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AKTU Quality Evaluation of Fibers and Yarns (BHT503) Syllabus PDF – B.Tech 3rd Year
Quality Evaluation of Fibers and Yarns BHT503
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Official AKTU syllabus of Quality Evaluation of Fibers and Yarns (BHT503) for B.Tech 3rd Year – 4 credits, L-T-P 3-1-0. Read the unit-wise course content, course outcomes, evaluation pattern and recommended books online, or download the PDF.
Syllabus — Quality Evaluation of Fibers and Yarns
Download PDFBHT503 · 4 credits · L-T-P 3-1-0
Course Objectives
- To make the students understand the principle and method of working of equipment’s used for testing of fibres and yarns.
- To make the students understand the concepts related to tensile testing modes like CRT, CRE, CRL.
- To make the students understand the properties of different fibers& yarn technique.
- To make the students understand the concepts related to yarn evenness, twist and yarn strength.
- To make the students understand the concepts related to different aspects of yarn testing.
| Unit | Topics | Lectures |
|---|---|---|
| I | Scope and Objectives of testing of textile materials; concept of quality; Selection of samples for quality assessment – random and biased samples – squaring technique and zoning technique for fibre selection; yarn sampling - use of random numbers - sampling for various types of yarn tests- yarn strength, linear density, elongation, twist. | 12 |
| II | Moisture relation and testing: standard atmosphere condition, moisture regain and moisture content and measurement of atmospheric condition, Fiber testing: Fibre length and length uniformity measuring techniques; Fibre strength and its relation to yarn strength. Fiber bundle strength tests. HVI, AFIS | 12 |
| III | Fibre fineness – definition- comparison of various fibres – its importance in yarn manufacture; measurement techniques. Cotton fibre maturity, estimation by microscopic method - maturity ratio and index, estimation by other methods – optical, air flow, differential dyeing; its importance in spinning. Fibre trash – influence on quality; measurement – principle and estimation of micro-dust for rotor spinning. High volume instrument for total fiber quality measurement. | 12 |
| IV | Yarn Appearance and grading, yarn mass evenness parameters – measurement –nature of irregularity: - index of irregularity; limit irregularity electronic mass evenness determination – Yarn fault classification –Yarn abrasion resistance – importance and measuring technique. Yarn hairiness – importance and assessment techniques. Twist in single and ply yarns –twist direction – twist factor – twist and yarn strength; twist measurement and breaking twist angle measurement. Analysis of data and test reports such as, Classimat. | 12 |
| V | Tensile characteristics – Tensile Strength Testing modes – CRT, CRE and CRL, study of strength, single yarn strength; Lea count strength product (CSP) and Corrected Count Strength Product (CCSP), elongation, work of rupture, initial modulus, work factor and yield point – determination of yield point. Stress-strain relations of natural and manmade fibres, influence of fibre structure, humidity and temperature on tensile characteristics. Time effects Study of creep phenomena. Elastic recovery and its relation to stress and strain of fibres; mechanical conditioning of fibres and its influence on elastic recovery. Load cycling and extension cycling-their effect on elastic recovery. Introduction about torsional and flexural rigidity of fibers. | 12 |
Outcomes:
Upon completion of the course, the students will be able: -
- To define the scope and objectives of testing of textile materials.
- To explain about Moisture relation and testing for textiles.
- To describe the testing methods of fibre fineness and maturity.
- To explain different yarn grading system and evenness testing.
- To describe the tensile behavior of yarns.
Text Books
- Booth J.E., “Principle of Textile Testing”, Butterworth Publications, London, 1989
- Saville B.P., “Physical Testing of Textiles”, Textile Institute, Manchester, 1998
- Kothari V. K., “Testing and Quality Management”, Progress in Textile Technology Vol.1, IAFL Publications, New Delhi, 1999
- Arindam Basu, “Textile Testing”, The South India Textile Research Association, Coimbatore.
- P.Angappan , R.Gopalakrishna, “Textile Testing”, S.S.M. Institute Of Textile Technology Staff abd students’ Co-op.Stores Ltd ,2002
Reference Books
- Slater K., “Physical Testingand Quality Control”, The Textile Institute, Vol.23, No.1/2/3Manchester, 1993.
- Ruth Clock and Grace Kunz., “Apparel Manufacture- Sewn Product Analysis”, Upper Sadle River Publications, New York, 2000
- Pradip V. Mehta., “Managing Quality in the Apparel Industry”, NIFT Publication, India, 1998
- Apurba Das,” Testing of Textile and fibrous materials” CRC Pulication,2024
- Elliot B. Grover , D.S.Hamby,” Handbook of textile testing and quality control”, Wiley India Pvt Ltd. (2011)
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