Textile Fibres

Classification of textile fibre
Essential requirements of fibre forming polymers;
Gross and fine structures of natural fibres like
cotton, wool, silk;
Introduction to bast fibres;
Properties and uses of
natural fibres and man-made fibres including carbon,
aramid and ultra-high molecular weight polyethylene fibres;
Physical and chemical methods of fibre and blend identification and blend analysis.

Molecular architecture,
amorphous and crystalline phases,
glass transition,
factors affecting Tg and Tm;
Polymerization of nylon-6,
poly (ethylene terephthalate),
polyacrylonitrile and polypropylene;
Melt spinning processes for PET,
polyamide and polypropylene;
Preparation of spinning dope;
Principles of wet spinning,
dry spinning,
dry-jet-wet spinning and
gel spinning;
Spinning of acrylic,
viscose and other regenerated cellulosic fibres such as polynosic and lyocell;
Post spinning operations such as drawing, heat setting, tow-to top conversion;
Spin finish composition and applications;
Different texturing methods.

Methods of investigating fibre structure such as density,
x-ray diffraction,
optical and electron microscopy such as SEM and TEM,
I.R. spectroscopy,
thermal methods such as
TMA and TGA;
Structure and morphology of man-made fibres;
Mechanical properties of fibres;
Moisture absorption of fibres;
Fibre structure-property correlation.