MALACHITE GREEN

The  triarylmethane dyes are of brilliant hue,  exhibit  high  tinctorial  strength,  are  relatively inexpensive,  and  may  be  applied  to  a  wide  range  of  substrates.  However, they are seriously deficient in fastness properties, especially  fastness  to  light and washing. Because of these deficiencies, the use of  triarylmethane dyes on textiles has decreased as dyes from  other  chemical   classes   with   superior  properties   have    become  available. Interest in this class of dyes was revived with the introduction of polyacrylonitrile fibres. Triphenylmethane  dues  are  readily  adsorbed on this fiber and show  surprisingly  high  light fastness and wash fastness properties when compared with  the  same  dyes on natural fibres. The durability of acrylic fibres, howver, created an even greater demand for fastness properties. Modifications of the classical triarylmethane dyes in order to improve these properties met with only limited success since they were generally accompanied by a reduction in tinctorial strength.  Research  led  to the development of novel dye types  from  other  chemical classes such as the pendant cationic dyes, in which  the  localized  positive  charge  is isolated from  the  chromophoric  system   and  which  were  designed  especially  to   give   high  lightfastness. Similarly, the diazahemicyanine dyes, which offer both brightness and fastness, gradually replaced  triarylmthane  dyes  for acrylic fibres. However, the most  important  commercial  black  dye  for  acidmodified fibers is till  a  mixture  of  the  classical  triarylmethane  dyes, malachite  green  and  fuchsine,  because of hgh tinctorial strength and low cost.

INTRODUCTION
STRUCTURES AND PROPERTIES
PROPERTIES
USES AND APPLICATION
MARKET & SCOPE
PREPARATION
OXIDATION OF THE LEUCO BASE TO THE DYE
PROCESS FLOW SHEET FOR THE MANUFACTURE OF MALACHITE GREEN
MALACHITE GREEN
PRINCIPLES OF PLANT LAYOUT
PLANT LOCATION FACTORS
EXPLANATION OF TERMS USED IN THE PROJECT REPORT
MANUFACTURERS/SUPPLIERS OF MALACHITE GREEN
MANUFACTURERS/SUPPLIERS OF PLANT & MACHINERY
MANUFACTURERS/SUPPLIERS OF RAW MATERIALS

APPENDIX – A :

.      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