Preparation for Textile Processing 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 (36135), 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 preparation for textile processing practical is as follows.
Rationale:
Preparatory processes such as desizing, scouring, bleaching and mercerizing help to improve absorbency and feel of the fabric. These processes prepare the fabric ready for dyeing, printing and finishing. Practical knowledge on these processes would help to learn the subsequent processes with ease.
Guidelines:
- All the twelve experiments given in the list of experiments should be completed and given for the board practical examination.
- In order to gain in – depth practical knowledge, every student should individually carry out the 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 examining a batch of 30 students during Board Examinations.
Allocation of Marks:
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Complete List Of Experiments In Detail
- Desizing
- Scouring
- Bleaching
- Degumming
- Combined Scouring And Bleaching
Desizing of given sized cotton fabric by using enzyme desizing method. After desizing, the efficiency of the process will be evaluated by finding the weight loss
Scouring of given desized cotton fabric by using NaOH. Scouring is done to remove the natural and added impurities from cotton, wool and polyester blended fabrics.
Bleaching is done to remove the natural colouring matter from cotton and wool. Hydrogen peroxide can be used.
Degumming of given raw silk by using hot soaping treatment.
To remove the sericin gum from the silk material.
Combined scouring and bleaching process for the given cotton material by using alkali and hydrogen peroxide.
To carry out combined scouring and bleaching process to save energy, time and cost by using alkali and hydrogen peroxide.
Specific Questions For The Practical Class Work
- Desizing of given cotton fabric using Enzyme Desizing method and determine the starch content.
- Scouring of given cotton fabric using Desized cotton fabric and determine the scouring loss.
- Bleaching of the given scoured cotton fabric with Hydrogen Peroxide.
- Degumming of given raw silk yarn hank using Soda Ash and Soap.
- Bleaching of given silk yarn hank using hydrogen peroxide.
- Scouring of given wool yarn hank using soap and soda ash.
- Bleaching of given wool yarn hank using hydrogen peroxide.
- Scouring of given polyester /cotton blended fabric.
- Bleaching of given polyester /cotton blended fabric
- Carrying out the combined scouring & bleaching of given cotton material using hydrogen peroxide
- Carrying out the scouring of given cotton fabric using Enzyme & Alkali and comparing the efficiency with alkali scouring in terms of Drop test.
- Carrying out the Bleaching of given cotton with H2O2 using Na2SiO3 Stabilizer, Phosphate & Organic Stabilizer.
List Of Equipments And The Quantity Required For A Batch Of 30 Students
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Safety Precations To Be Followed
- Wearing the gloves in hand while taking and mixing the dyes stuffs and chemicals
- Should wear safe foot wear, preferably shoes.
- Should keep their shirts tucked in.
- Should inform the staff in charge immediately if they find any unsafe condition in the machine.
- Should not wear loose shirts.
- Should not open the doors and covers while the machine is running.
- Should not start running a machines without doing regular safety checks and closing the safety doors.
- Exhaust fans should be provided in the laboratory, so that unwanted smell and toxic air can be forced out
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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