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Lecture 9 quality evaluation

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Adane Nega
Adane Nega
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Quality evaluation of bleached, dyed and printed textiles R.B.CHAVAN Department of Textile Technology Indian Institute of Technology Hauz-Khas, New Delhi 110016 E-mail: rbchavan@hotmail.com
Identification of fibres Burning test Burn, no melting, black char Acrylic Does not burn, melt, white hard bid Polyester Does not burn, melt, white hard bid Nylon Does not burn, rotten smell Silk Does not burn, smell burning hair, balck char Wool Burn with continuous flame, smell burning paper Cotton Burning behaviour Fibre
Solubility test Dimethyl formamide (DMF) Acrylic Formic acid Nylon Ortho chloro phenol (OCP) Polyester Saturated zinc chloride Silk 5% NaOH, boil Wool Cuprammonium hydroxide, cadoxene Cotton Solvent Fibre
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[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],[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],[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],[object Object],[object Object]
List of banned amines Amine 1-4 Carcinogenic to human Amine 5-20 Carcinogenic to animals
Mechanism of dye degradation in human body
Metal Estimation Cr, Cu, Hg etc Instrument used Atomic abasorption spectrometer

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Lecture 9 quality evaluation

  • 1. Quality evaluation of bleached, dyed and printed textiles R.B.CHAVAN Department of Textile Technology Indian Institute of Technology Hauz-Khas, New Delhi 110016 E-mail: rbchavan@hotmail.com
  • 2. Identification of fibres Burning test Burn, no melting, black char Acrylic Does not burn, melt, white hard bid Polyester Does not burn, melt, white hard bid Nylon Does not burn, rotten smell Silk Does not burn, smell burning hair, balck char Wool Burn with continuous flame, smell burning paper Cotton Burning behaviour Fibre
  • 3. Solubility test Dimethyl formamide (DMF) Acrylic Formic acid Nylon Ortho chloro phenol (OCP) Polyester Saturated zinc chloride Silk 5% NaOH, boil Wool Cuprammonium hydroxide, cadoxene Cotton Solvent Fibre
  • 4.
  • 5.
  • 6.
  • 7.
  • 8.
  • 9.
  • 10. List of banned amines Amine 1-4 Carcinogenic to human Amine 5-20 Carcinogenic to animals
  • 11. Mechanism of dye degradation in human body
  • 12. Metal Estimation Cr, Cu, Hg etc Instrument used Atomic abasorption spectrometer