High efficiency, low temperature bleaching compositions for...

D - Textiles – Paper – 06 – L

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D06L 3/02 (2006.01) C11D 3/39 (2006.01) D21C 9/147 (2006.01)

Patent

CA 2000967

PRECIS La présente invention concerne une composition de blanchiment pour des matières textiles et/ou cellulosiques à haute efficacité à de basses températures, caractérisée en ce qu'elle contient des composés peroxydes, des sels solubles de métaux divalents de numéro atomique entre 25 et 29 inclus et des agents séquestrants de type ligand qui forment, en milieu aqueux, avec lesdits métaux divalents, des complexes catalyseurs de blanchiment, qui, aux pH alcalins des bains de blanchiment, ont une charge positive nette. Elle concerne également un procédé de blanchiment de fibres textiles et/ou cellulosiques utilisant ladite composition de blanchiment.

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