Unit 1 Brief idea about different ways of fabric formation. Classification of fabrics

14 lecture hours

• Sequence of Yarn Preparation Process for weaving Warp preparation: Winding: Objects of winding
• Different bobbins (a) before winding
• (b) after winding
• Winding machines classification
• Types of winders
• Basic components of a winder
• Different types of winding: parallel
• stepped precision
• Package building
• Winding parameters & their optimization
• Yarn tension & tensioning devices
• Yarn clearing
• yarn faults
• yarn clearing devices: Mechanical yarn clearers or Slub catchers- Fixed blade
• Swinging blade type
• Electronic yarn clearer- photo-electric detection
• Capacitance detection
• Concept of clearing curves and setting of electronic clearers
• methods of yarn traversing & package drive
• Yarn joining by knotting & Splicing
• Package faults
• remedies & Calculations related to production
• efficiency etc
• Automatic winding machines

Unit 2 Warping

8 lecture hours

• Systems of warping
• Constructional details & features of warping machine
• drive to machine parts
• types of creel
• control devices
• Direct & Sectional warping
• defects and remedial measures
• Calculations related to production
• efficiency etc
• concept of ball warping
• draw warping
• features of modern machines

Unit 3 Sizing

• Sizing Ingredients
• Classification of sizing machines
• features of sizing machine
• size preparation and application
• Methods of drying sized yarns
• Sizing of synthetic yarns
• staple fibre yarns
• polyester-cotton blends etc
• Defects and remedies
• 14 Subject Code: 3132907 w.e.f