TX 041 THEORY OF TEXTILE STRUCTURES

ANNA UNIVERSITY :: CHENNAI – 600 025.
M.TECH. TEXTILE TECHNOLOGY
TX 041 THEORY OF TEXTILE STRUCTURES

1. YARN GEOMETRY 9
Elements of yarn geometry. Geometry of helix and its application to yarn structures. Geometry of folded yarns. Yarn diameter and density.

2. FIBRE MIGRATION 9
Migration characteristics in continuous filament and spun yarns. Effect of various parameters on migration. Effect or migration on Tensile behaviour and hairiness of the yarn.

3. YARN MECHANICS 9
Effect of fibre properties and their geometrical configuration on the tensile and bending properties of yarn. Design of yarn structures for certain functional uses.

4. BLENDED YARN MECHANICS 9
Blend irregularity, concept of elongation balance. Effect of properties of constituent fibres and blend composition on behavior of blended yarns.

5. FABRIC MECHANICS 9
Pierce’s geometry of plain weave fabrics; crimp balance equation, theoretical treatment of fabric deformation in tension, bending and shear, Cloth bucking and recovery; Geometry of nonwoven and knitted fabrics.

TOTAL : 45

REFERENCES
1. Hearle, J.W.S., P.Grosberg and S.Baker, “Structural Mechanics of fibres, yarns and fabrics”, Wiley Interscience, New York, 1969.
2. Goswami, B.C., J.G. Martindale and F.L.Scardino, “Textile Yarns: Technology, Structure and Applications”, Wiley Interscience, New York, 1985.
3. Hearle, J.W.S., J.J.Thwaitesand A. Amikrbayhat, “Mechanics of Flexible Fibre Assemblies”, Maryland, 1980.
4. Postle, P., S.Dejong and G.A.Carnaby, “The Mechanics of Wool Structure”, Ellis Horwood, London, 1988.

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