Pretreatments of Textile Substrates (312337) MSBTE QuAn Question Answer Book

Description

QuAn Book – Pretreatments of Textile Substrates (312337)

The QuAn Book for Pretreatments of Textile Substrates (Subject Code: 312337) is a premium study material designed for MSBTE K-Scheme Diploma Engineering students. It provides a complete, topicwise question bank with model answers to help you score maximum marks.

Syllabus Coverage (MSBTE K-Scheme)

• Unit I – Mechanical preparatory processes: Mechanical Pretreatments: Importance, Objective, Machine used; Pretreatment sequences: cotton fabric, polyester fabric, polyester / cotton blended fabric, wool fabric and silk fabric; Grey fabric inspection: Objective, Faults in grey fabric- Criteria of four-point system, Criteria of ten-point system, Calculation based on four point and ten point system, Criteria for rejection; Shearing and cropping machine: Construction and working of Shearing and cropping machine; Singeing: Importance, objective, types, Traditional singing method [IKS], Construction and working principle of gas singeing machines
• Unit II – Sizing and Desizing: Sizing: Process, Objective, Size Paste Ingredients: Role of ingredient in size paste, Example; Adhesives: Classification of adhesive, Example, Properties, testing, Softeners: Classification of softeners, Example, Testing; Size paste formulation for Cotton, Polyester, Polyester / Cotton Blend; Identification of size on grey fabric, Desizing process: Rot [IKS], acid, alkali and Enzyme desizing; Desizing process: Objective, Advantages, Disadvantages, Factors affecting process, Efficiency evaluation by weight loss method
• Unit III – Scouring: Scouring: Importance, Objective, Mechanism and Reactions; Methods: Introduction to alkaline, detergent, Emulsion and solvent scouring; Alkaline Scouring process: cotton, polyester and their blends in various machine (Kier, J-box); Scouring of wool and degumming of silk; Evaluation of scouring process efficiency by absorbency method
• Unit IV – Bleaching: Objective of bleaching, Sodium hypochlorite bleaching: Purpose, Mechanism, Procedure for cotton, Factors affecting, Advantages and disadvantages; Hydrogen peroxide bleaching: Objective, Classification, Mechanism, Factors affecting, Role of stabilizer, Process for cotton, Polyester and their blends, Comparison between H2O2 and NaOCl bleaching; Sodium chlorite bleaching: Mechanism, Procedure for polyester; Bleaching procedure for wool and Silk; Bleaching machines: Jigger, PTR; Evaluation of bleaching efficiency: Whiteness index methods
• Unit V – Mercerization: Mercerization: Objective, definition, Classification, Stages, changes occurred in fibre; Mercerisation machine: Yarn mercerization, pad-chain, pad-chainless, padless-chainless; Factors affecting the mercerization process; Hot mercerization: – Concept, Comparison with conventional mercerization; Causticization: Purpose, process; Evaluation of mercerisation process: Axial ratio, BAN

What’s Inside the QuAn Book?

• Topicwise Question Bank – All important 2, 4 and 6 marks questions by unit
• Model Answers – Step-by-step solutions with diagrams and marking scheme
• Previous Exam Questions – Actual MSBTE Summer and Winter exam questions
• Frequency Analysis – Most repeated questions highlighted for focused study
• Marking Scheme – Know exactly what to write to score full marks
• Last Minute Ready – Ideal for quick and focused exam preparation

Subject Code: 312337 | Subject: Pretreatments of Textile Substrates | Board: MSBTE | Scheme: K Scheme | Published by: ReemaS Edutech, Kolhapur