TY4002 Chemical Processing of Manmade Fibres Syllabus:
TY4002 Chemical Processing of Manmade Fibres Syllabus – Anna University PG Syllabus Regulation 2021
OBJECTIVES
To enable the students to know about the
Various Preparatory processes for manmade textile
Practical problems and their solutions in wet processing of manmade textiles
UNIT I PREPARATORY PROCESSES
Various Preparatory processes for manmade textile -Heat setting of synthetic fabrics –effects of heat setting on dyeing. Mass Colouration of Polyester, Nylon, Acrylic and polypropylene, Advantages & Disadvantages of Mass Colouration; Difference between Mass Colouration and Dyeing.
UNIT II DYEING
Polyester Dyeing: carrier, HTHP and thermosal methods of dyeing. Practical problems and their solutions. Stripping of dyed PET. Dyeing of nylon. Dyeing with acid dyes-High temperature dyeing .Low temperature dyeing of Nylon66– Dyeing with disperses dyes. Barriness of dyeing. Dyeing of Acrylic Fibres: – Dyeing with cationic dyes– stripping of cationic dyes, dyeing with disperse dyes, dyeing of acrylic blends, differentially dye able acrylic fibres.
UNIT III BLENDED DYEING
Dyeing of Polyester Blends: Various shop floor practices of dyeing of polyester /cellulosic blended fabrics. Practical problems and their solutions. Various shop floor practices of dyeing of polyester/ wool blended fabrics. Practical problems and their solutions. Dyeing of polyester with cationic dyes. Dyeing of Micro polyester fabric. Dyeing of polyamide cellulosic blends – polyamide/wool blends, polyamide/ polyester blends-Stripping of Nylon dyed material. Practical problems and remedies in Nylon Dyeing. Dyeing of unmodified and modified polypropylene.
UNIT IV PRINTING
Printing of synthetic and blended fabrics with different dye classes – Direct, resist and discharge styles of printing-Transfer printing of polyester and blends.
UNIT V FINISHING
Different functional and easy care finishes on synthetics and blends like anti-stat, soil-release, soil-resistant, flame-retardant.
TOTAL: 45PERIODS
OUTCOMES
Upon completion of this course the student shall have knowledge on
CO1: The concept of heat setting and mass colouration of manmade textiles
CO2: The concept of dyeing of polyester and acrylic fabrics.
CO3: The dyeing of the blend fabrics.
CO4: The printing of synthetic fabrics and their blends.
CO5: The different types of finishing of synthetic fabrics.
REFERENCES
1. Vaidya,A.A.,and Datye,K.V.,“Chemical processing of Synthetic Fibres and Blends”,John Wiley and Sons,NewDelhi,.1999
2. Shore,J.“BlendDyeing”,SDC,London,1998
3. Mittal.R.M.&Trivedi.S.S,Chemical Processing of polyesterand blends–ATIRA.1998
4. C.Duckworth, Engineering in Textile colouration, Dyers company publications trust,U.K.1983.
5. Burkinshaw.S.M.,Chemical principles of syntheticfibredyeing,Blackie,1995.
6. Gulrajani,M.L.,“PolyesterDyeing”,IIT,NewDelhi,1995.