Methods relating to wool treatment

A composition comprising a compound of formula E-L-Q+ is applied to the material, preferably polyamide fibres or wool, wherein: E is an electrophile, preferably with chloro (Cl), bromo (Br), sulphate (SO4) or sulphonate (SO3) leaving group, or methacrylate; L is a linking moiety, preferably alkylene...

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Bibliographische Detailangaben
Hauptverfasser: DAVID MALCOLM LEWIS, JAMIE ANTHONY HAWKES
Format: Patent
Sprache:eng
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Zusammenfassung:A composition comprising a compound of formula E-L-Q+ is applied to the material, preferably polyamide fibres or wool, wherein: E is an electrophile, preferably with chloro (Cl), bromo (Br), sulphate (SO4) or sulphonate (SO3) leaving group, or methacrylate; L is a linking moiety, preferably alkylene, optionally substituted by a hydroxy group; and Q+ is a quaternary ammonium (N+(R)3) residue. The exemplified composition comprises 3-chloro-2-hydroxy-propyl trimethyl ammonium chloride and triethanolamine (to adjust the pH of the liquor to 10.5) and it was applied for 5-10 minutes at 50-70°C. The treated material is then dyed with an anionic dye.