Dye scavenging and water softening product
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United States of America Patent
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Dec 13, 2011
Grant Date -
Jun 18, 2009
app pub date -
Sep 20, 2006
filing date -
Jan 20, 2006
priority date (Note) -
Expired
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Abstract
The present invention relates to a material for removing dye released from laundry into the wash water, and for removing limescale, comprising a substrate made of natural and/or synthetic fabric, natural and/or synthetic non-woven fabric and paper, at least one ‘dye scavenging’ additive selected from: cationic heterocyclic polymers, proteins, chitin, chitosan, polyvinylamine (PVA), polyethylenimine (PEI), acrylic polymers, vinyl polymers, polyamine-N-oxide and at least one calcium and magnesium ion sequestrant additive selected from: polyacrylate, polyphosphonate and an EDTA salt. The invention also relates to a process for obtaining said material.
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