YARN DYEING (POLYESTER AND NYLON)
(EIRI/EDPR/1852) J.C. 718
INTRODUCTION
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 recognised 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 MT/Day
Land & Building (4000 sq.mt.) Rs. 2.35 Cr
Plant & Machinery Rs. 3.00 Cr
Working Capital for 1 Month Rs. 1.82 Cr
Total Capital Investment Rs. 7.76 Cr
Rate of Return 29%
Break Even Point 54%
CONTENTS
INTRODUCTION
PROPERTIES OF POLYESTER FIBRES
PROPERTIES OF DISPERSE DYES
DISPERSE DYES AND ITS CLASSIFICATION
USES AND APPLICATION
B.I.S. SPECIFICATION
MARKET SURVEY
MAJOR PLAYERS IN TEXTILE INDUSTRY
DYES USED IN POLYESTER YARN DYEING
PROCESS OF MANUFACTURE OF POLYESTER YARN DYEING
PREPARATION FOR DYEING OF POLYESTER YARN
PROCESSING DETAILS AND MECHANISM OF POLYESTER DYEING
METHED OF DISPERSE DYEING
POLYESTER DYEING RECIPE
STAGES AND PARAMETERS IN POLYESTER YARN DYEING
SEQUENCES IN POLYESTER YARN DYEING
PROCESS FLOW DIAGRAM
METHOD OF NYLON YARN DYEING
PROCESS FLOW DIAGRAM
DETAILS OF YARN CONDITIONING
PLANT LAYOUT
PRINCIPLES OF PLANT LAYOUT
PLANT LOCATION FACTORS
EXPLANATION OF TERMS USED IN THE PROJECT REPORT
SUPPLIERS OF RAW MATERIALS FOR YARN DYEING
SUPPLIERS OF PLANT & MACHINERY FOR YARN DYEING
APPENDIX – A:
01. PLANT ECONOMICS
02. LAND & BUILDING
03. PLANT AND MACHINERY
04. OTHER FIXED ASSESTS
05. FIXED CAPITAL
06. RAW MATERIAL
07. SALARY AND WAGES
08. UTILITIES AND OVERHEADS
09. TOTAL WORKING CAPITAL
10. TOTAL CAPITAL INVESTMENT
11. COST OF PRODUCTION
12. TURN OVER/ANNUM
13. BREAK EVEN POINT
14. RESOURCES FOR FINANCE
15. INSTALMENT PAYABLE IN 5 YEARS
16. DEPRECIATION CHART FOR 5 YEARS
17. PROFIT ANALYSIS FOR 5 YEARS
18. PROJECTED BALANCE SHEET FOR (5 YEARS)
