Printing of Natural Substrates detailed Syllabus for Textile Technology (TC), I – scheme has been taken from the MSBTE official website and presented for the diploma students. For Subject Code, Subject Name, Lectures, Tutorial, Practical/Drawing, Credits, Theory (Max & Min) Marks, Practical (Max & Min) Marks, Total Marks, and other information, do visit full semester subjects post given below.
For all other Diploma in Textile Technology (TC) Syllabus for 4th Sem I – Scheme MSBTE, do visit Diploma in Textile Technology (TC) Syllabus for 4th Sem I – Scheme MSBTE Subjects. The detailed Syllabus for printing of natural substrates is as follows.
Rationale:
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Competency:
The aim of this course is to help the student to attain the following industry identified competency through various teaching learning experiences:
- Use relevant printing dyes and equipment for printing natural fibre fabrics.
Course Outcomes:
The theory, practical experiences, and relevant soft skills associated with this course are to be taught and implemented, so that the student demonstrates the following industry oriented COs associated with the above mentioned competency:
- Select relevant thickener and ingredients for printing the given fabric.
- Use relevant printing method and style for the given job.
- Use relevant machine for printing based on complexity of design and production capacity.
- Formulate print paste for printing the given cotton using specified dyes.
- Develop pigment print on the given cotton fabric.
- Produce print on silk and wool using specified dyes.
Suggested Exercises:
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Instruments Required:
The major equipment with broad specification mentioned here will usher in uniformity in conduct of experiments, as well as aid to procure equipment by authorities concerned.
Equipment Name with Broad Specifications
- Dye Pots: 250 ml, 500 ml
- Glass rod
- Beaker: 50 ml. 100 ml. 150 ml, 200 ml, 500 ml, 1000 ml
- Measuring cylinder of capacity 10 ml, 25 ml, 100 ml and 1 lit
- Bunsen burner
- Pipette: 1 ml, 10 ml, 25 ml
- Plastic and metal Tray: 12 x 18
- Electric drier: 230V, 200W
- Electric Iron: 230 V, 1000W
- Wooden Screen 10xl0
- Rubber Squeegee: 8 width
- Laboratory Printing table: 3Ft x 2 Ft and 2 5 Ft Height
- Laboratory Stirrer: High Speed Mechanical Stirrer- 300 to 500 rpm
- Lab. Pressure Steamer: 30 psi and 150uC
- Laboratory Drying, Curing and setting Chamber: temperature up to 220C, working width- 450 mm, length 1 7 meter, heater capacity-8/16/24 kilo-watt.
- Laboratory Padding Mangle: Horizontal (60-80% Expression.
- Plastic Mug of 0 5, 1 and 2 lit capacity
- Digital Weighing balance: 0 02 gm accuracy ( 300 gm)
Unit 1
Textile Printing
Total Teaching Hours – 07
Distribution of Theory Marks
R Level – 02
U Level – 04
A Level – 04
Total Marks – 10
Unit Outcomes (UOs) (in cognitive domain)
- Differentiate between dyeing and printing processes based on the given criteria.
- Describe with with flow chart various stages involved in printing of the given fabric.
- Select relevant process for preparation of the given cotton fabric with justification.
- Select specified print paste ingredients for the given dye with justification.
- Classify the thickeners based on the given source and chemistry.
- Choose relevant thickener based on the given dye/pigment with justification.
Topics and Sub-topics
- Dyeing and printing: Purpose and differentiation
- Printing stages: Fabric preparation, print paste preparation, printing, drying, fixation of prints, after treatments
- Print paste: Ingredients and their functions, Preparation procedure
- Thickeners: Classification, chemistry of thickeners, advantages and limitations, selection criteria for various dyes
Unit 2
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Unit 3
Printing Machinery
Total Teaching Hours – 10
Distribution of Theory Marks
R Level – 04
U Level – 04
A Level – 06
Total Marks – 14
Unit Outcomes (UOs) (in cognitive domain)
- Design table for printing the given design using table printing.
- Describe with sketch the procedure to print the given design using table printing.
- Describe with sketch the procedure to prepare screen for the given printing machine.
- Describe with flowchart the procedure to print the given design using specified printing machine.
Topics and Sub-topics
- Table printing: Technical features, faults, causes and remedies
- Screen preparation: Flat screen, rotary screen, procedure, material required.
- Flat-bed printing: Technical features, production capacity, types and sizes of squeegees, advantages and limitations.
- Rotary screen printing: Technical features, production capacity, types and sizes of squeezes, advantages and limitations
Unit 4
Printing of Cotton
Total Teaching Hours – 14
Distribution of Theory Marks
R Level – 04
U Level – 06
A Level – 12
Total Marks – 22
Unit Outcomes (UOs) (in cognitive domain)
- Select relevant fixation method and machinery for the given fabric with justification.
- Describe with flowchart the procedure to formulate paste for the given dye.
- Describe with flowchart the procedure to develop prints with direct dye on the given fabric with specified style.
- Describe procedure to develop prints with reactive dye on the given fabric with specified style.
- Describe procedure to develop prints with vat dye on the given fabric with specified style.
- Describe procedure to develop prints with azoic colours on the given fabric with specified style.
- Describe procedure to produce the specified print effects on the given fabric.
Topics and Sub-topics
- Print Fixation: Methods- steaming, curing, polymerising, fixation mechanisms.
- Steaming machineries: Star ager and rapid ager, loop ager, working and applications.
- Printing with direct dye: Print paste formulation for direct style and discharge style of printing, process sequence.
- Printing with reactive dye: Print paste formulation for direct style and discharge and resist style of printing, process sequence.
- Printing with vat dye: Print paste formulation for direct style of printing, process sequence.
- Printing with azoic colours: Print paste formulaion for direct style of printing, process sequence.
- Special print effects: Khadi printing, magic style, crimp style, process sequence.
Unit 5
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Unit 6
Printing of Wool and Silk
Total Teaching Hours – 06
Distribution of Theory Marks
R Level – 02
U Level – 02
A Level – 04
Total Marks – 08
Unit Outcomes (UOs) (in cognitive domain)
- Choose relevant preparation process before printing for the given fabric with justification.
- Describe with sketch the procedure to develop prints with specified dyes on the given silk fabric by direct style.
- Describe procedure to develop prints with specified dyes on the given wool fabric by direct style.
Topics and Sub-topics
- Fabric preparation: process sequence for wool, silk
- Printing with acid dye: paste formulation for direct style of printing, process sequence.
- Printing with basic dye: paste formulation for direct style of printing, process sequence.
- Printing with metal complex dye: paste formulation for direct style of printing, process sequence.
Note: To attain the COs and competency, above listed UOs need to be undertaken to achieve the Application Level and above of Blooms ‘Cognitive Domain Taxonomy
Note:
Legends: R=Remember, U=Uncierstand, A=Apply and above (Blooms Revised taxonomy)
Note: This specification table provides general guidelines Io assist student for their learning and to leathers to teach and assess students with respect to attainment of UOs. The actual distribution of marks at different taxonomy levels (of R. U and A) in the question paper may vary from above table.
Suggested Student Activities:
Other than the classroom and laboratory learning, following are the suggested student-related co-curricular activities which can be undertaken to accelerate the attainment of the various outcomes in this course: Students should conduct following activities in group and prepare reports of about 5 pages for each activity; also collect/record physical evidences for their (students) portfolio which will be useful for their placement interviews:
- Survey market for different dyes, pigments, auxiliaries, and chemicals. Compare them based on print effects, fastness properties, and ecological aspects and costing.
- Collect information about novel printing techniques being used in different industries.
- Prepare table for different chemicals used in printing of cotton fabric and their role in printing paste.
Suggested Special Instructional Strategies:
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Suggested Micro-Projects
Only one micro-project is planned to be undertaken by a student that needs to be assigned to him/her in the beginning of the semester. In the first four semesters, the micro-project are group-based. However, in the fifth and sixth semesters, it should be preferably be individually undertaken to build up the skill and confidence in every student to become problem solver so that s/he contributes to the projects of the industry. In special situations where groups have to be formed for micro-projects, the number of students in the group should not exceed three.
The micro-project could be industry application based, internet-based, workshopbased, laboratory-based or field-based. Each micro-project should encompass two or more COs which are in fact, an integration of PrOs, UOs and ADOs. Each student will have to maintain dated work diary consisting of individual contribution in the project work and give a seminar presentation of it before submission. The total duration of the micro-project should not be less than 16 (sixteen) student engagement hours during the course. The student ought to submit micro-project by the end of the semester to develop the industry oriented COs.
A suggestive list of micro-projects are given here. Similar micro-projects could be added by the concerned faculty:
- Print sample analysis: Visit textile printing industries/ market shops and collect at least 50 different printed samples of cotton/ silk/ wool fabrics. Classify them with respect to style and method of printing, class of dye used for printing. Present the results.
- Print fault analysis: Visit industries and market shops and collect at least 50 samples of different varieties printed on different machines and examine the faults in the printed samples. Present the results.
- Evaluate fastness properties of printed fabric: Collect different printed fabric samples. Evaluate their wash fastness, rubbing fastness and light fastness properties using specified ISO tests. Present the results with end use of the tested fabric samples.
- Analyse performance of thickeners: Collect different types of thickeners used in textile printing industries. Analyze their performance with respect to viscosity, stability under the given conditions of pH and colour yield. Present the results.
- Analysis of printed design: visit industries and market shops, collect at least 50 printed samples of different varieties, and analyse the design with respect to type of pattern, number of colours in the design, percent coverage of colour, overlapping, and blotches. Estimate print paste consumption. Present the results.
- Optimize the chemical concentration: Compare the effect of different concentrations of chemicals used in print paste on the colour yield of prints and find optimized concentration. Prepare shade card. Present the results.
- Short film on working of machine: Visit different textile printing industries. Observe the working operations of machine at various stages and capture those processes using video camera. Edit the videos as per specified process sequence and make a short film. Present the short film.
Suggested Learning Resources:
- Technology of Printing. Vol- IV Shenai, V. A. Sevak Publications, Mumbai 1990
- Textile Printing Miles, L.W.C. Society of Dyers and Colourists, 1981, ISBN: 9780901956330
- Silk dyeing, Printing and Finishing Gulrajani, M. L. Department of Textile Technology, IIT Delhi, 1988
- Dyeing and Printing Cockett, S. R.; Hilton, K. A. Leonard Hill Books Ltd. London, 1961, ISBN: 9781114785724
- Introduction to Textile Printing Clarke, W. Wood-head Publishing Ltd. Swaston, Cambridge , 1974 ISBN: 9781855739949
- Silk Dyeing, Printing and Finishing Hurst. George Henry Bell, London, 1901 Rarebooks Club.com (e-copy), 2012, ISBN: 9781130986525
Software/Learning Websites:
For the complete Syllabus, results, class timetable, and many other features kindly download the iStudy App
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For detail Syllabus of all other subjects of Textile Technology, I – scheme do visit Textile Technology 4th Sem Syllabus for I – scheme.
For all Textile Technology results, visit MSBTE Textile Technology all semester results direct links.