Chemistry of Tannages Post Tannages and Microbiology detailed Syllabus for Leather Technology (DLT), C18 curriculum has been taken from the TSSBTET official website and presented for the diploma students. For Course Code, Course Name, Lectures, Tutorial, Practical/Drawing, Internal Marks, Max Marks, Total Marks, Min Marks and other information, do visit full semester subjects post given below.
For all other Diploma in Leather Technology (DLT) Syllabus for 4th Sem C18 Curriculum TSSBTET, do visit Diploma in Leather Technology (DLT) Syllabus for 4th Sem C18 Curriculum TSSBTET Subjects. The detailed Syllabus for chemistry of tannages post tannages and microbiology is as follows.
Prerequisites:
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Course Outcomes:
On successful completion of the course, the students will have ability to attain below
- CO1: Explain the formation of coordination complexes.
- CO2: Explain and relate the tanning power of various elements with leather through complex formation.
- CO3: Explain the properties, uses, and preparation of aldehydes, oils and syntans in tannage.
- CO4: Appraise the methods and mechanisms of combination tannages .
- CO5: Make use of the materials in post tannages
- CO6: Examine the life cycles, growth of bacteria, fUngi and insects on skin and develop the control methods.
UNIT-1: Basics of Coordination Chemistry
Recapitulation of ionic, covalent, coordinate covalent bond, hydrogen bond and their difference in formation, Coordination chemistry – Concept of double salt, coordination complex their formation and differences between them. Terminology and definition of coordination chemistry like central metal atom, ligand, classification of ligands, primary and secondary valencies of metal, charge (or) valency of complex, coordination number, Werners postulates of coordination compounds. Effective atomic number (EAN).
UNIT-2: Chemistry of Chrome, Aluminium, Zirconium and IronTannages
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UNIT-3 : Chemistry of Aldehyde, Oil and Syntan Tannages
Chemistry of Aldehyde Tannage – Recapitulation of reactions of aldehydes. Aldehydes used for tanning. Methods and mechanism of formaldehyde-glutaraldehyde-dialdehyde starch tannages-properties-uses-limitations Chemistry of Oil Tannage – Lipids – Definition – Oils, fats, waxes – Differences – Classification of oils -Suitability of oils for tanning, physical and chemical properties, method and mechanism of oil tanning. Properties of fish oil. Synthetic substitute. Chemistry of Syntan Tannage – Definition – Comparison with vegetable tanning – Classification -Properties and differences – Methods of preparation – Tanning power of syntan – uses of syntans. Resin tannages-Impregnating agents-Urea formaldehyde, Dicynamide-formaldehyde-Resorcinol formaldehydeFurfuryl alcohol resins-Styrene-maleic anhydride resins
UNIT-4 : Chemistry of Combination Tannage
Objectives of combination tannage. Method and mechanisms of combination tannages involving –
- Chrome retanning with vegetable,
- Vegetable retanning with chrome,
- Chrome – syntan,
- Chrome aluminium
- retanning with aldehyde
- retanning with oil
UNIT-5: Chemistry of Post-tanning Operations
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UNIT-6: Bacteriology, Mycology and Entomology in Leather Processing
Bacteriology – Enzymes of bacteria- Action of bacteria on proteins and amino acids- Protein sparing effectPutrefaction- Decay- Action on amino acids- Illustration of various biochemical properties of bacteria-liquefaction of gelatin, Indole test, Fermentation, Ammonia liberation, Hydrogen sulphide production -Changes in structure of the skin due to bacterial action – Bacteriology of curing soaking, liming, bating, vegetable tanning – Eco-friendly technological applications of bacteria. Mycology-Definition-Difference of bacteria and fungi- Morphology of fungi-Reproductive structures-Fungal damages on live stock and in leather processing – Mildew resistance of leather. Entomology-Definition-Parts of Insect-General Life Cycle- Insect damages in antemortem stage – Life cycle of insects-Warble fly, Ticks, Lice, Mange mites -Insect damages in postmortem stage – Life cycles of insects- Dermestes maculates, Attagenus gloriosae and Anthrenus vorax beetles -Control of insects.
Reference Books:
- Bianciewicz, Physical Chemistry of Leather Manufacture.
- K.H.Gustavson, Chemistry of Tanning Processes.
- Fred O Flaherty, Chemistry and Technology of Leather vol.1,2,3,4, Rober E. Krieger Publishing Co.
- . S.S.Dutta, Introduction to the Principles of Leather Manufacture, ILTA, Calcutta.
- Progress in leather science, BLMRA, London.
- A.J.Salle, fundamental principles of bacteriology, MC.Graw Hill book company.
- Histological characteristics of Indian Hides and Skins – CLRI publication.
- J.C.Tancouse, Skin, hide and leather defects.
- Veterinary, Parasitology, E.Gurr.
E – learning links:
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 Leather Technology, C18 curriculum do visit Diploma In Leather Technology 4th Sem Syllabus for C18 curriculum.
For all Leather Technology results, visit TSSBTET DLT all semester results direct links.