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Environment friendly dyeing processes for cotton ppt

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Adane Nega
Adane Nega
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ENVIRONMENT FRIENDLY DYEING PROCESSES FOR COTTON R.B.CHAVAN DEPARTMENT OF TEXTILE TECHNOLOGY INDIAN INSTITUTE OF TECHNOLOGY HAUZ-KHAS, NEW DELHI 110016
PLANATE EARTH ,[object Object],[object Object],[object Object],[object Object],[object Object]
DESTRUCTIVE FORCES ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
INDIAN EXPERIENCE ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CUMULATIVE EFFECT ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
WORD FIBRE CONSUMPTION ,[object Object],48500 20500 (42%) 2200 2400 23400 (49%) 2000 42600 17300 (41%) 2000 2500 20700 (49%) 1995 39300 14900 (39%) 2000 2700 18700 (49%) 1990 TOTAL SYNTHETIC WOOL REGENERATED COTTON YEAR
[object Object],178 000 109 000 60 000 REACTIVE 354 000 290 000 300 000 TOTAL 13 000 18 000 28 000 AZOIC 12 000 12 000 12 000 INDIGO 22 000 21 000 36 000 VAT 68 000 60 000 74 000 DIRECT 70 000 70 000 90 000 SULPHUR 2004 b 1992 1988 a DYE CLASS
REASONS FOR LACK OF GROWTH EXCEPT REACTIVE DYES ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CURRENT RESEARCH ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Chemicals in effluent streams ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Chemicals in effluent streams ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Chemicals in effluent streams ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
COLOUR IN EFFLUENT ,[object Object],[object Object],[object Object],[object Object],[object Object]
ALTERNATIVE METHODS FOR LOW COLOUR IN EFFLUENT ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
BIFUNCTIONAL REACTIVE DYES ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
BIFUNCTIONAL REACTIVE DYES
LOW SALT REACTIVE DYES ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
EFFECT OF SALT ON ENVIRONMENT ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
APPROACHES TO SOLVE PROBLEMS OF SALT LOAD ,[object Object],[object Object],[object Object]
GENERAL STRUCTURE OF LOW SALT REACTIVE DYES CHROMOPH-ORE CHROMOPHORE BRID-GE REACT-IVE GROUP REACT-IVE GROUP
ADVANTAGES OF HIGH DYE FIXATION Conventional dyes 60 % fixation Cibacron LS (bireactive) 80 % fixation 200 gm into the waste water 800 gm on the fibre 1 kg dye + 33% % - 50% % 1 kg dye 600 gm on the fibre 400 gm into the waste water
ECOLOGICAL BENEFITS OF LOW SALT REACTIVE DYES ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ECO FRIENDLY REDUCING AGENTS FOR VAT DYES ,[object Object],[object Object],[object Object],[object Object],[object Object]
ALTERNATE REDUCING SYSTEMS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ELECTROCHEMICAL REDUCTION ,[object Object],[object Object],[object Object]
IRON COMPLEXES ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
STUDY AT IIT DELHI R.B.chavan, J.N.chakraborty ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
SULPHUR DYES ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
OXIDATION ,[object Object],[object Object],[object Object],[object Object]
Na 2 S REPLACEMENT ,[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object]
HYDROL/GLUCOSE ,[object Object],[object Object],[object Object],[object Object]
CONCLUSION ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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Environment friendly dyeing processes for cotton ppt

  • 1. ENVIRONMENT FRIENDLY DYEING PROCESSES FOR COTTON R.B.CHAVAN DEPARTMENT OF TEXTILE TECHNOLOGY INDIAN INSTITUTE OF TECHNOLOGY HAUZ-KHAS, NEW DELHI 110016
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  • 20. GENERAL STRUCTURE OF LOW SALT REACTIVE DYES CHROMOPH-ORE CHROMOPHORE BRID-GE REACT-IVE GROUP REACT-IVE GROUP
  • 21. ADVANTAGES OF HIGH DYE FIXATION Conventional dyes 60 % fixation Cibacron LS (bireactive) 80 % fixation 200 gm into the waste water 800 gm on the fibre 1 kg dye + 33% % - 50% % 1 kg dye 600 gm on the fibre 400 gm into the waste water
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