Dyeing of Manmade Fibres and Blends detail TNDTE Diploma syllabus for Textile Processing (TP), M scheme is extracted from TNDTE official website and presented for diploma students. The course code (36143), and for exam duration, Teaching Hr/week, Practical Hr/week, Total Marks, internal marks, theory marks, duration and credits do visit complete sem subjects post given below. The syllabus PDFs can be downloaded from official website.
For all other textile processing 4th sem syllabus for diploma m scheme tndte you can visit Textile Processing 4th Sem Syllabus for Diploma M Scheme TNDTE Subjects. The detail syllabus for dyeing of manmade fibres and blends is as follows.
Rationale:
This subject covers the pre-treatment and dyeing of synthetic fibres such as Polyester, Nylon and acrylic and blended with natural fibres such as cotton and wool. It helps the students to acquire enough knowledge in this field and the same will help them to work in manmade fibres and blends processing mill. Since today, man-made fibres and blends are mostly used as dress materials as well as industrial purposes.
Objectives:
- To know how pre-treatment is carried out for synthetics and blends.
- To know about the importance of heat setting of various synthetic fibres
- To know how disperse dyes is applied on polyester material.
- To know how nylon is dyed with acid dyes.
- To know how the acrylic fibre is dyed using cationic dyes.
- To have an idea of dyeing of synthetics and blends
- To know about the working of various dyeing machines
- To know about the garment dyeing and its accessories dyeing machines.
Detailed Content:
Unit I
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Unit II
Dyeing Of Polyester
Disperse dyes – classification, properties, Mechanism of dyeing. Carriers – characteristics and function. Function of dispersing agents, leveling agents, antifoaming agents, redox buffer. Definition of Tg – Effect of Tg on dyeing of Polyester. Methods of Polyester dyeing – Carrier dyeing, HTHP dyeing, Thermosol dyeing. Various problems involved during dyeing and remedies.
Unit III
Dyeing Of Nylon And Acrylics
Dyeing of Nylon with acid dyes, Acid metal complex dyes and Disperse dyes. Acrylic dyeing – Function of retarders, Fibre saturation value, Combination value, Dye saturation factor. Effect of Tg on acrylic dyeing. Mechanism of dyeing of acrylics with cationic dyes. Dyeing of acrylic with cationic dyes and disperse dyes.
Unit IV
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Unit V
Dyeing Machines
Fibre dyeing machine – Rotary dyeing machine. Yarn dyeing machine – Cheese dyeing machine. Woven fabric dyeing machine -Jet, Beam dyeing machine. Knitted fabric dyeing machines – Air flow. Continuous dyeing machine – Padding mangle. Other dyeing machines – Garment dyeing machine, Button and Zip Dyeing machines.
Text Books:
- Technology of Textile Processing, Technology of Dyeing Ed. 3 Shenai V.A Sevak Publication, Bombay 1982
- Chemical processing of Synthetic Fibres and blends Datye K.V and Vaidhay A.A John Wiley and Sons, New York. 1982
Reference Books:
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For detail syllabus of all other subjects of BE Textile Processing, M scheme do visit Textile Processing 4th Sem syllabus for M scheme.
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