TX4006 Structure and Properties of Nonwovens Syllabus:
TX4006 Structure and Properties of Nonwovens Syllabus – Anna University PG Syllabus Regulation 2021
OBJECTIVE
To enable the students to learn about the manufacturing of nonwovens and their properties
UNIT I INTRODUCTION
Recapitulation of web preparation by dry and wet method and bonding by mechanical, thermal and chemical methods; brief outline of nonwoven manufacture by spun bonding and melt blown processes
UNIT II WEB QUALITY
Effect of web quality on nonwoven quality; mechanisms of web forming machines and processes to achieve uniformity in web; process control tools used for maintaining web quality
UNIT III NEEDLE PUNCHED NONWOVENS
Design of needles and its effect on needle punched fabric structure and quality; type of fibres and its characteristics which affect fabric quality; horizontal and vertical structure in needle punched fabrics, and their contribution to fabric properties; needle machine parameters that affect fabric structure and properties
UNIT IV HYDRO-ENTANGLED, THERMAL AND CHEMICAL BONDED NONWOVENS
Effect of water jets on fibres, effect of water pressure, number of manifolds and nozzles, and type of web support systems used in spun laced nonwoven production on fabric structure and properties; effect of type of heat transfer method on thermal bonded nonwoven structure and properties; effect of process and material variables on the structure and properties of thermal and chemical bonded nonwovens
UNIT V MELTBLOWN AND SPUN BONDED NONWOVENS
Effect of material and process variables like type of polymer, molecular weight, polymer and air temperature, collector distance, primary and secondary air pressure in melt-blown nonwoven production on fabric structure and quality; factors affecting the structure of spun bonded fabrics and properties
TOTAL: 45 PERIODS
OUTCOMES
Upon completion of the course the student will be able to
CO1: Know overview of nonwovens
CO2: Understand the optimization of process in web preparation
CO3: Process variables in needle punched nonwoven manufacture
CO4: Process control inhydro entangling, thermal and chemical bonding
CO5: Process control inmelt blown and spun bonded fabrics
REFERENCES
1. Lunenschloss J., Albrecht W. and David Sharp., “Nonwoven Bonded Fabrics”, Ellis Horwood Ltd., New York, 1985, ISBN: 0-85312-636-4.
2. Mrstina V. and Feigl F., “Needle Punching Textile Technology”, Elsevier, New York, 1990, ISBN: 0444988041 | ISBN-13: 9780444988041
3. Dharmadhikary R. K., Gilmore T. F., Davis H. A. and Batra S. K., “Thermal Bonding of Nonwoven Fabrics”, Textile Progress, Vol.26, No.2, Textile Institute Manchester,1995, ISBN: 1870812786.
4. Jirsak O. and Wadsworth L. C., “Nonwoven Textiles”, Textile Institute, Manchester,1999, ISBN: 0 89089 9788.
5. Russell S., “Hand Book of Nonwovens”, Textile Institute, Manchester, 2004, ISBN:1855736039.
6. Chapman R., “Applications of Nonwovens in Technical Textiles”, Textile Institute, Manchester, 2010, ISBN: 1845694376
7. Abhijit Majumdar, Apurba Das, R.Alagirusamy and V.K.Kothari., “Process Control in Textile Manufacturing”, Wood Head Publishing Limited, Oxford, 2013, ISBN: 978-0-85709-027-0