15LT41T: Leather Finishing and Surface Up Gradation Techniques Leather Tech 4th Sem Syllabus for Diploma DTE Karnataka C15 Scheme

Leather Finishing and Surface Up Gradation Techniques detail DTE Kar Diploma syllabus for Leather And Fashion Technology (LT), C15 scheme is extracted from DTE Karnataka official website and presented for diploma students. The course code (15LT41T), 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 leather tech 4th sem syllabus for diploma c15 scheme dte karnataka you can visit Leather Tech 4th Sem Syllabus for Diploma C15 Scheme DTE Karnataka Subjects. The detail syllabus for leather finishing and surface up gradation techniques is as follows.

Pre-requisites:

Basic Knowledge of Crust & its preparation.

Course Objectives:

1. To study the various Leather Finishing techniques to upgrade the quality of leather.
2. To understand the various finishing materials used for finishes.
3. To develop the leather finish as per the end user’s demand.
4. To understand the various types of leather & their properties.

Course Outcomes:

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UNIT-I PRINCIPLES OF LEATHER FINISHING

Introduction of leather finishing, Classification of leather finishing, Characteristics of finish , Theory of adhesion, Gloss and Gloss retention, Different layers of finish film – Base Coat -Intermediate Coat – Top Coat – Property Requirement of Each layer – Theory of film formation, Water proofing of leather, Types of leathers encountered for leather finishing.

UNIT – II FINISHING MATERIALS

Composition of leather finish, Pigments: Definition, Properties, Classification in detail, Comparison between organic/inorganic pigment, Manufacturing process of pigments, Transformation of dyes – pigments, Application problems, Binders : Definition, Classification, Properties, Plasticizers – Internal and external plasticization, Lacquers- Definition, properties, NC lacquer -manufacturing process, Wax: Properties, types, preparation of wax emulsion, Polyurethanes: Properties – manufacturing process – chemistry and uses, Finishing auxiliaries: Feel modifiers, slip, and matt agents, Preservatives.

UNIT-III VARIOUS UPGRADATION TECHNIQUES OF LEATHER

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UNIT- IV MANUFACTURING PROCESS OF VARIOUS UPPER LEATHER.

Manufacturing process of Shoe Upper Leather, Milled Leather, Suede Leather – Shoe Suede Leather, Water-proof Suede Leather, Glazed Kid Leather, Nubuck Leather.

UNIT- V MANUFACTURING PROCESS OF OTHER LIGHT LEATHER.

Manufacturing process of Softy Leather, Nappa Leather, Lining Leather, Garment Suede Leather, Glove Leather – Fashionable, Industrial, Sports – Shrunken Grain leather, Chamois Leather.

UNIT- VI MANUFACTURING PROCESS OF SOME SPECIAL LEATHER.

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Reference Books:

1. Theory and practice of Leather manufacture -K.T. Sarkar.
2. The Chemistry & Technology of Leather – Vol.-Ill – O. Flaherty, William Roddy, T. Robert, M. Lollar. – E.Robert Krieger Publishing Company, Newyork.
3. Leather Technicians Hand Book -J.H.Sharphouse.
4. Pigment Hand Book -Vol. -III – ed. W.J.Newyork, 1973
5. Pigments- An Introduction to Theory of Physical Chemistry -P. Patterson – Elsevier Publishing Company Ltd. Amseterdam. 1967.
6. The manufacture of Upper Leathers, Tropical Product Institute, London-D.H.Tuck

Suggested List of Student Activities:

Note: The following activities or similar activities for assessing CIE (IA) for 5 marks (Any one)

1. Each student should do any one of the following type activity or any other similar activity related to the course and before conduction, get it approved from concerned Teacher and HOD.
2. Each student should conduct different activity and no repeating should occur.

1. Collect the various types of finished leather. Identify the finish film and make a report of the basic property of the finish in 2-3 pages in hand written form.
2. Visit the nearest tannery. Observe the various finishing auxiliaries and make a report on the uses of these finishing auxiliaries in 2-3 pages in hand written form.
3. Visit the nearest tannery. Observe the finishing machines used in the tannery and make a report on operational guidelines in 2-3 pages in hand written form.
4. Collect the various types of transfer foil used in leather finishing and make a report on operational guidelines in 2-3 pages in hand written form.

Course Delivery:

• The course will be delivered through lectures and Power point presentations/ Video.

Model Question Paper:

(CIE)

1. Illustrate the need of leather finishing.
2. Select the concepts behind making the leather waterproof.
3. Differentiate between organic & inorganic pigments. or Interpret the functions of preservatives.
4. Appraise the properties of Nitro Cellulose (NC) lacquer with its preparation. or Categorize the various types of binders.

Model Question Paper:

(SEE)

NOTE:

1. Answer any 6 questions from section A & 7 full questions from section B.
2. Each question carries 5 marks in section A.
3. Each question carries 10 marks in section B.

SECTION – A

1. Illustrate the base coat of the finish film with its characteristics.
2. Relate the transformation of dyes in to pigments.
3. Differentiate between organic & inorganic pigments.
4. Illustrate the concept of Embossing on leather.
5. List out various objectives of Liming operation.
6. Distinguish between Shaving & Splitting operation.
7. Explain the need of ageing after Cr. Tanning.
8. List out the various uses of Chamois leather.
9. List out the various check points while preparing white leather.

SECTION – B

1. Analyze the different layers of finish film & its significance. (6)
2. Select the concept behind making the leather waterproof. (4)
1. Write the various application of PU in leather finishing. (6)
2. Classify the varioustypes of binders. (4)
1. Discuss the followings: (6)
2. Feel Modifiers ii. Slip Agents iii. Matt Agents
3. Illustrate the use of plasticizers. (4)
1. Dramatize the application of Patent Finish. (5)
2. Dramatize the working of Metal Tipping operation on leather. (5)
1. Write the objectives of Deliming operation with its chemistry. (6)
2. Explain the need of addition of salt in pickling operation. (4)
1. Discuss the various methods of degreasing. (6)
2. Explain the various objectives of Shaving operation. (4)
1. Prepare the recipe for the manufacture of shoe upper leather. (7)
2. List out the properties required for Shoe upper leather. (3)
1. Write the complete recipe for the manufacture of Upholstery leather. (7)
2. List out the ideal properties required in Industrial Glove leather. (4)
1. Prepare the complete recipe for the manufacture of Chamois leather. (7)
2. List out the ideal properties required in lining leather. (3)
1. Prepare the recipe for the manufacture of White leather. (7)
2. Discuss the need of longer liming operation in Crocodile leather. (3)

For detail syllabus of all other subjects of BE Leather Tech, C15 scheme do visit Leather Tech 4th Sem syllabus for C15 scheme.

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