OPEN END SPINNING UNIT
[CODE NO.3247]
Open end spinning is an excellent short-term blending process. The presence of short fibers in the material fed does not seriously affect the efficiency of Open end spinning and it may be that process will have a bright future in the spinning of waste. Whenever the final judgment on open end spinning may be, it is a process that is here to say.
Few innovations in the field of textiles have created such interest as open-end spinning. Despite the tremendous efforts that have been made over the years to further the development of ring spinning, it now seems to be generally accepted that, owing to mechanical, technological and above all economic limitations, the potential of that well established process has been virtually exhausted and that further advancement will only be achieved through an entirely new approach; it may be that Open-end spinning will be the answer.
Spinning may be defined as the process of converting fibres and/or filaments(s) into yarn. In the production of manmade fibres, the extrusion of the fibre forming liquid through the spinners followed by hardening of this liquid jet in to solid filaments is called as the process of spinning.
The meaning of the spinning in this case may be completely different from that used for natural fibres. Generally, we can define spinning as a process that produces a yarn as its final product. The spinning of manmade fibres can be carried out by three different processes:-
COST ESTIMATION
Plant Capacity : 3.06 MT./day
land & Building (4040 sq.mtr) : Rs. 2.64 Cr
Plant & Machinery : Rs. 5.70 Cr
Working Capital for 1 Month : Rs 1.20 Cr
Total Capital Investment : Rs. 10.22Cr
Rate of Return : 24%
Break Even Point : 59%
INTRODUCTION
BASIC TEXTILE TERMS OF SPINNING
PRINCIPLE
OPEN END ROTOR YARN CHARACTERISTICS
MANUFACTURING PROCESS
SEQUENCE OF OPERATIONS:
ESSENTIAL FEATURES OF THE OPEN END SPINNING PROCESS:
ELEMENTS OF OPEN END SPINNING SYSTEM:
ROTOR SPINNING-
OBJECTIVES OF ROTOR SPINNING:
OPERATING PRINCIPLES OF ROTOR SPINNING SYSTEMS:
PROCESS DESCRIPTION
ROTOR SPEED AND DIAMETER
THE ROTOR GROOVE :
SLIVER FEED:-
PREPARATION OF THE SLIVER
FIBRE OPENING
FIBRE TRANSFER :
DIFFERENCE BETWEEN DIFFERENT ROTOR MACHINES
ROTOR SPINNING PERFORMANCE
YARN BREAKAGE
CONVENTIONAL & OPEN END SPINNING
CHARACTERISTICS:-
THE STRUCTURE OF OPEN END-SPUN YARN
ADVANTAGES:-
YARN TWIST AND TWIST MULTIPLIER
RELATION BETWEEN TWIST AND YARN STRENGTH:-
EXPRESSION OF TWIST
FACTORS AFFECTING TWIST
DIRECTION OF S TWIST
DIRECTION OF Z TWIST
FUNCTION AND EFFECTS OF TWIST ON YARN & FABRIC PROPERTIES
FUNCTION OF TWIST IN YARN STRUCTURE
EFFECTS OF TWIST ON YARN & FABRIC PROPERTIES
IN THE CASE OF MOISTURE ABSORPTION:
IN THE CASE OF WEARING PROPERTIES:
IN THE CASE OF AESTHETIC EFFECTS:
YARN DIAMETER, SPECIFIC VOLUME & PACKING DENSITY
SPECIFIC VOLUME FROM TWIST
PACKING DENSITY
PRODUCT DESCRIPTION AND APPLICATION
END USES FOR OPEN END SPUN YARNS
RAW MATERIALS
PLANT CAPACITY AND PRODUCTION PROGRAM
PLANT CAPACITY
PRODUCTION PROGRAM
MARKET SURVEY
COTTON PRODUCTION
COTTON PRICES
COTLOOK A INDEX (WORLD COTTON SEASON STARTING AUG 1)
DOMESTIC COTTON PRICES (DOMESTIC COTTON SEASON STARTING OCTOBER 1)
COTTON YARN PRODUCTION AND PRICES
COTTON YARN DEMAND
COTTON YARN PRICES & PROFITABILITY
CAPACITIES & INVESTMENT
SOME SUPPLIER NAME OF SPINNING AND SPINNING MACHINERY
LIST OF MACHINES
MACHINERY PHOTOGRAPHS
BLOW ROOM
FILTER
BLOW ROOM FOR VISCOSE/COTTON
COTTON CARDS
DRAW FRAME
TWISTING AND WINDING MACHINERY
SCHLAFHORST AUTOCONER
RAW MATERIAL & PODUCT PHOTOGRAPHS
PROCESS FLOW DIAGRAM
TECHNICAL SPECIFIACTION
ROTOR SPINNING ( SAURER SCHLAFHORST):- BD 448
DRAWING:-
CARDING:-
COMPLETE MACHINERY SUPPLIERS
JOSHI & ASSOCIATES
YOGESH JOSHI ( CONSULTANT )
MACHINERY SUPPLIER (QUOTATION RECEIVED)
BD INNOVATIONS
RAW MATERIAL SUPPLIER
CLEANING OF OPEN END SPINNING MACHINE & WASTE DISPOSAL
INSTRUCTIONS FOR SHIFT CHANGE
HANDING OVER THE SHIFT:
PLANT LAYOUT
APPENDIX – A:
1. COST OF PLANT ECONOMICS
2. LAND & BUILDING
3. PLANT AND MACHINERY
4. FIXED CAPITAL INVESTMENT
5. RAW MATERIAL
6. SALARY AND WAGES
7. UTILITIES AND OVERHEADS
8. TOTAL WORKING CAPITAL
9. COST OF PRODUCTION
10. PROFITABILITY ANALYSIS
11. BREAK EVEN POINT
12. RESOURCES OF FINANCE
13. INTEREST CHART
14. DEPRECIATION CHART
15. CASH FLOW STATEMENT
16. PROJECTED BALANCE SHEET
