FT3405 Syllabus - Textile Chemical Processing - 2021 Regulation Anna University

FT3405 Syllabus - Textile Chemical Processing - 2021 Regulation Anna University

FT3405

TEXTILE CHEMICAL PROCESSING

 LTPC

3003

COURSE OBJECTIVES:
To enable the students to learn about pre-treatments involved in the wet processing of textiles, dyeing and printing of textiles

UNIT I

PREPARATORY PROCESSES

9

Introduction - Process sequence of wet processing for wovens and knits. Singeing electric and gas singeing. Desizing hydrolytic, oxidative and enzymatic. Scouring alkaline and enzymatic. Bleaching - hypochlorite, peroxide and sodium chlorite bleaching. Optical whitening. Mercerizing tension, tensionless and tubular mercerization.

UNIT II

DYEING

9

Dyeing equipment - jigger, winch, soft flow, jet dyeing, J-box, padding mangles, package dyeing and garment dyeing machine. Classification of dyes. Dyeing of cotton using direct, reactive, vat and sulphur dyes. Dyeing of polyester using carrier, HTHP and thermo sol. Dyeing of cellulosic blends (one bath and two bath process).


UNIT III

PRINTING

9

Ingredients of print paste. Styles of printing - direct, discharge, resist, tie and dye and batik. Methods of printing - block, stencil, roller, rotary, flat bed, transfer and chest printing. Special prints -flock, foam, foil, glitter, kadi, leather, pearl and rubber. After treatments of printed goods.

UNIT IV

FINISHING

9

Mechanical finishing -raising, shearing, sueding, anti-shrink finish, compacting, decatizing, calendaring, embossing. Chemical finishing - softening, crease resist, bio polishing, flame retardant, water repellent, water proof, soil release, antimicrobial, UV protection finish. Denim washing - stone washing, acid washing, sand blasting.

UNIT V

COMPUTER COLOR MATCHING CONCEPTS

9

Color; Electromagnetic spectrum - visible range, measurement of color strength - color matching - theory and applications. Spectrophotometer and color matching systems. Quality control using color matching systems, color difference - pass / fail system and shade sorting

`TOTAL: 45 PERIODS

COURSE OUTCOMES:: Upon completion of the course, students will be able to
CO1 Understand the preparatory process in chemical processing CO2 Explain the classes, machines, stages, and application of dyes CO3 Discuss about the ingredients, types and machines and faults of printing CO4 Understand the various methods and application of finishing CO5 Understand the measurement of strength of colour and colour difference

TEXT BOOKS:
1. Trotman E. R., “Dyeing and Chemical Technology of Textile Fibres”, B.I Publishing Pvt. Ltd., New Delhi, 1994, ISBN: 0471809101 | ISBN-13: 9780471809104 2. Karmarkar S.R., “Chemical Technology in Pre-treatment processes of Textiles”, Elsevier Publications, Newyork,1999, ISBN: 044450060X | ISBN-13: 9780444500601

REFERENCES:

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