Dyeing of Natural Fibres Practical detail TNDTE Diploma syllabus for Textile Processing (TP), M scheme is extracted from TNDTE official website and presented for diploma students. The course code (36136), 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 3rd sem syllabus for diploma m scheme tndte you can visit Textile Processing 3rd Sem Syllabus for Diploma M Scheme TNDTE Subjects. The detail syllabus for dyeing of natural fibres practical is as follows.
Rationale:
The dyeing of natural fibre practical imports the practical knowledge about the dyes such as direct, reactive, vat, solublised vat, and sulphur dyes on cotton and Acid and basic on silk and wool. The above mentioned dyes are being carried out in the shade matching laboratory of the textile industries. Almost it covers the above mentioned dyes which are being used in the industry.
Guidelines:
All the twelve experiments given in the list of experiments should be completed and given for the end semester practical examination.
In order to develop best skills in handling Instruments/Equipment and taking readings in the practical classes, every two students should be provided with a separate experimental setup for doing experiments in the laboratory.
The external examiners are requested to ensure that a single experimental question should not be given to more than three students while admitting a batch of 30 students during Board Examinations.
Allocation of Marks:
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Complete List Of Experiments In Details
A) Dyeing Of Cotton With Various Dyestuffs
Dyeing of cotton using water soluble dyes such as Direct dyes, Reactive dyes, (Cold brand, Hot Brand, Vinyl sulphone, ME. etc.,)
Dyeing of cotton using water insoluble dyes such as Vat dyes, Sulphur dyes, Solublised Vat dyes etc.,
To understand the dyeing of cotton with various above mentioned dye stuffs.
B) Dyeing Of Silk & Wool With Various Dyestuffs
Dyeing of Silk / Wool using Reactive dyes, Acid dyes, basic dyes etc,
To understand the dyeing of silk / wool with various above mentioned dye stuffs
C) Specific Questions For The Practical Class Work
- Dyeing of cotton with direct dyes.
- Dyeing of Cotton with Cold brand reactive dyes.
- Dyeing of Cotton with hot brand reactive dyes.
- Dyeing of Cotton with Vinyl Sulphone reactive dyes.
- Dyeing of Cotton with bi functional (ME) reactive dyes.
- Dyeing of Cotton with Vat dyes.
- Dyeing of Cotton with Sulphur colours
- Dyeing of Cotton with Solublised vat dyes.
- Dyeing of silk with reactive dyes.
- Dyeing of Silk with acid dyes.
- Dyeing of Wool with Acid dyes.
- Dyeing silk with basic dyes
List Of Equipments And The Quantity Required For A Batch Of 30 Students
List of Equipment
- Dye baths with 6 pots – 5 Nos.
- Hot plate – 2 Nos.
Materials and the quantity required (for a batch of 30 students):
- Bleached cotton Hank – 1 kg
- Bleached Wool & Silk – 100 gms.
- Bleached cotton Fabric – 5 meters
- Any one colour from all major dye classes – 100 gms each.
Safety Precations To Be Followed
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For detail syllabus of all other subjects of BE Textile Processing, M scheme do visit Textile Processing 3rd Sem syllabus for M scheme.
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