TY4102 Textile Chemical processing Syllabus:

TY4102 Textile Chemical processing Syllabus – Anna University PG Syllabus Regulation 2021

COURSE OBJECTIVES:

 To enable the students to study about the mechanism of Preparatory process
 To enable the students to study about elements of dye chemistry
 To enable the students to study the about Printing methods & styles and the
 Necessity of Finishing

UNIT I DE-SIZING

Necessity for Desizing and grey preparation – Mechanism of Desizing– important Desizing chemicals for grey fabrics and their chemistry – Efficiency of Desizing. Scouring : Mechanism of Scouring -surface tension and the mode of action of surface-active compounds – theory of detergency – important Scouring agents for Textile fibres and their chemical actions – practical problems in the Scouring of cotton and its blends

UNIT II BLEACHING

Mechanism of Bleaching – important Bleaching agents for Textile fibres and their chemical actions -chemistry of peroxide bleach and use of per-acetic acid for synthetic fibres – concept of full bleach and half bleach- Application of OBA to textile materials. Mercerization: Mechanism of Mercerization -influencing parameters on Mercerization quality of textile materials — methods of Mercerization –evaluation of Mercerization.

UNIT III ELEMENTS OF DYE CHEMISTRY

Classification of dye stuffs according to their chemical constitution/ structure and specific applications VBT and MO Theory of colour – interaction of dye molecules with polymeric chains – Fick ‘s first and second Laws of diffusion – Adsorption theory – Study about natural dyes and their application to fibres like cotton, wool and silk.

UNIT IV PRINTING

Printing methods and styles – Dye selection for Printing –Study about Printing thickeners and other Printing auxiliaries. Importance of various after treatment for printing materials. Printing of cellulosic, silk, polyester and nylon materials.

UNIT V FINISHING

Necessity for Finishing – important mechanical finishes like heat setting, anti-shrink, calendaring, Finishing chemicals for textile fibres and their chemistry –assessment methods for finished materials.

TOTAL :60 PERIODS

COURSE OUTCOMES

Upon completion of this course the student shall be able to know the mechanism of
 Desizing
 Bleaching
 Dye chemistry
 Printing
 Finishing

REFERENCES:

1. Burkinshaw S.M., “Chemical Principles of Synthetics Fibre Dyeing”, Blackie, 1995, ISBN :0751400432.
2. Clifford Preston, “The Dyeing of Cellulosic fibres”, Dyer Company Publications Trust,1986,ISBN :9780901956439.
3. LueasJ.etal, “Colour Measurement-Fundamentals Vol.1”,Eurotex,1996
4. ShoreJ.,“Cellulosics Dyeing”,SDC,1995,ISBN:0901956686.
5. Trotman E. R., “Dyeing and Chemical Technology of Textile Fibres”, Charles Griffin & Co. Ltd., U.K., 1984, ISBN : 0 85264 165 6.
6. W D Schindler P J Hauser., “Chemical Finishing of Textiles”, Woodhead publishing Ltd, 2004.
7. L.W.C Miles “Textile Printing”, Soceity of Dyers and Colourists, 2003, ISBN 0901956791
8. Mathews Kolanjikombil “Pretreatment of Textile Substrates”, Woodhead publishing India, 2019