YARN DYEING [CODE NO.3512]
The fact that dyes in solution in the dye bath leave the bath and are sobned by the fibre/yarn material during the dyeing process has been of interest to chemist and physicists for many years. Theories of dyeing the describe the Sorption (or desorption) process and the resulting dye-fiber bonds using the tools of thermodynamics have increased in complexity over the year. Further more, it must be recognized that the dyeing process in dynamic in nature. It normally entails changes in the dyeing temperature the dye concentration the bath composition and the fiber structure.
Affinity and diffusion are fundamental aspect of the dyeing process. The former describes the force by which the dye is attracted by the fiber and the latter describes the speed with which it travels within the fiber/yarn a from areas of higher concentration to areas of lower concentration. Alone or together with fiber characteristics, affinity and diffusion determine the speed of dyeing, its temperature dependency, the equilibrium exhaustion of the dye, and some of its fastness properties.
Two fundamental dyeing processes have been distinguished, the nonionic and the ionic dyeing process. The former refers to the dyeing of synthetic fibers such as polyester, nylon and triocetate by disperse dye.
COST ESTIMATION
Plant Capacity 4.00 MT/day
Land & Building (3000 sq.mt) Rs. 2.01 Cr
Plant & Machinery Rs. 2.50 Cr
Working Capital for 1 Month Rs. 2.38 Cr
Total Capital Investment Rs. 7.04 Cr
Rate of Return 22%
Break Even Point 61%
INTRODUCTION
PROPERTIES OF POLYESTER FIBRES
PHYSICAL PROPERTIES
CHEMICAL PROPERTIES
PROPERTIES OF DISPERSE DYES
DISPERSE DYES AND ITS CLASSIFICATION
DISPERSE DYES
CLASSIFICATION
GENERAL STRUCTURE OF AMINOAZOBENZENE DYES.
SOME TYPICAL AZO DISPERSE DYE STRUCTURES.
ANTHRAQUINONE DISPERSE DYES
ANTHRAQUINONE SYSTEMS OF BASIC FORMULA; 9,10-ANTHRAQUINONE
COMMERCIAL ANTHRAQUINONE DISPERSE DYES.
OTHER DISPERSE DYE CLASSES
USES AND APPLICATION
B.I.S. SPECIFICATION
MARKET SURVEY
MARKET SIZE
INVESTMENT
SOME OF THE MAJOR INVESTMENTS IN THE INDIAN TEXTILES
INDUSTRY ARE AS FOLLOWS:
GOVERNMENT INITIATIVES
INITIATIVE WILL BE TAKEN INTO CONSIDERATION BY GOVERNMENT
OF INDIA.
SOME OF INITIATIVES TAKEN BY THE GOVERNMENT TO FURTHER
PROMOTE THE INDUSTRY ARE AS UNDER:
TEXTILES EXPORT
THE BREAK-UP OF OUR CURRENT EXPORTS ARE AS FOLLOWS:
PROJECTIONS FOR INDIA IN WORLD EXPORTS
PROJECTIONS FOR DOMESTIC TEXTILES INDUSTRY
MARKET POSTION OF TEXTILE YARN
MAJOR PLAYERS IN TEXTILE INDUSTRY
MAJOR PLAYERS IN THE INDUSTRY
PROFILE OF MAJOR PLAYERS IN INDIA
WELSPUN INDIA LTD.
VARDHMAN GROUP
PRODUCTS
MANUFACTURERS/SUPPLIERS OF YARN DYEING (DYED YARNS)
DYES USED IN POLYESTER YARN DYEING
FASTNESS PROPERTIES:-
PROCESS OUTLINE FOR YARN DYEING
SOFT WINDING
BATCHING
DYEING
HYDROEXTRACTOR
DRYER
PACKAGING
PROCESS FLOW DIAGRAM
PROCESS OF MANUFACTURE
OF POLYESTER YARN DYEING
PREPARATION FOR DYEING OF POLYESTER YARN
PROCESSING DETAILS AND MECHANISM OF POLYESTER DYEING
EFFECT OF VARIOUS CONDITIONS ON DISPERSE DYEING:
EFFECT OF TEMPERATURE:
EFFECT OF PH:
CARRIER DYEING METHOD:
PROCEDURE:
HIGH TEMPERATURE DYEING METHOD:
PROCEDURE:
METHED OF DISPERSE DYEING
BASIC PRINCIPLE
DISPERSE DYEING MECHANISM
THE FOUR STAGES OF THE PROCESS MECHANISM ARE AS FOLLOWS:
THE EFFECTS OF VARIATIONS IN DISPERSE DYEING
CRYSTAL FORM OF THE DISPERSE DYES
DISPERSING AGENT
PARTICLE SIZE IN DISPERSION OF THE DYES
PH OF DYEBATH
SUBSTANTIVITY OF DISPERSE DYES
TEMPERATURE
FIBRE FINENESS
MAIN METHODS OF DISPERSE DYEING
CARRIER DYEING
HIGH TEMPERATURE DYEING
ADSORPTION PHASE
PHASES OF EXHAUST DYEING OF POLYESTER.
DIFFUSION PHASE
CLEARING PHASE
CHEMICAL REACTION DURING REDUCTION CLEARING
POLYESTER DYEING RECIPE
STAGES AND PARAMETERS IN
POLYESTER YARN DYEING
IMPORTANT PARAMETERS IN POLYESTERS YARN DYEING
SEQUENCES IN POLYESTER YARN DYEING
PROCESS FLOW DIAGRAM
METHOD OF NYLON YARN DYEING
PRETREATMENT & DYEING:
PROCESS FLOW DIAGRAM
METHODS FOR DYEING (COTTON YARN DYEING)
PREPARATION FOR DYEING
RAW STOCK
COTTON YARN
AN EXAMPLE OF SUCH A TREATMENT FOR 100 LB (POUNDS) OF YARN
IS THE FOLLOWING:
DYEING MEDIUM
DETAILS OF DYESTUFF, STORAGE & HANDLING
DIRECT DYES
DETAILS OF YARN CONDITIONING
CONDITIONING PROCESS FOR VARIOUS YARNS:
SUPPLIERS OF RAW MATERIALS
SUPPLIERS OF PLANT & MACHINERY
VERTICAL YARN DYEING MACHINE
SAMPLING DYEING MACHINE
AIR COMPRESSORS
HYDRO EXTRACTOR
BOILERS
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