JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

COURSE OBJECTIVES:

• 1. To learn about the contamination in cotton
• 2. To learn about the working of openers and cleaners
• 3. To learn about the working of Carding
• 4. To learn about the role of drafts in scutcher and Card
• 5. To learn about the quality aspects

UNIT - I

Introduction: Selection of cotton – parameters governing the selection. Ginning: Objectives and working principles of Knife Roller, Saw GIN, Macarthy Gin., Contamination of Cotton, Preventive Measures. -Introduction to Mixing and blending: Mixing objectives and methods, working principle of Modern Equipments, Brief note on Bale management, Preparations of mixing for cotton and blends, Blending: Objectives and methods of Blending, working of Blendomat.

UNIT - II

Introduction to opening and cleaning: Principles of opening and cleaning machines for Processing Cotton – working principle of Modern Bale opener – Elements and their functions – Working principle of step cleaner and Mono cylinder.

UNIT - III

Working principle of ERM & AIRJET cleaners. -Rieter’s and Trutzschller’s scutcher: Elements and their functions – Production calculations – Introduction to chute feeding. -A brief note on Selection of Blow Room lines - Accessories in blow room – Latest developments in Blow room. –Quality Control Aspects in Blow Room

UNIT - IV

Introduction to carding: Objectives, regions, Principles of carding, Conventional card and role of each element, Stripping and grinding, Card clothing, Card setting.

UNIT - V

A brief note on Card Coiler mechanisms – High production cards – Tandem card – Auto leveling in card – Latest Developments in carding – Production calculations. - Quality Control Aspects in Carding.

COURSE OUTCOME

(Graduate to have)

• 1. An ability to plan for bale to bale management
• 2. An ability to select the machinery based on the fibre and its properties
• 3. An ability to select the process parameters for processing the different
• 4. An ability to evaluate the Cleaning efficiency
• 5. An ability to estimate the waste extraction at each machine
• 6. An ability to assess the end product quality at Blow room and Card.

TEXT BOOKS:

• 1. Spun Yarn Technology Vol. I & II – Venkata Subramani Mahajan Book Publishers, Ahmedabad, 2007
• 2. Short staple spinning process – Opening and Carding – W.Klein, The Textile Institute, Manchester 2007

REFERENCE BOOKS:

• 1. Essential facts of practical cotton spinning – T.K.Pattabhiraman, Mahajan Book Publishers, Ahmedabad, Revised edition, 2008.
• 2. Textile Processing – Opening and cleaning by Szaloki, Institute of Textile Technology, Chezeslovakia 2007.
• 3. BTRA Monograph series on Blow room and Carding, BRRA Publications, Bombay 2008.