Dye scavenging and water softening product

Details Dye scavenging and water softening product Dye scavenging and water softening product

2006-09-20

2011-12-13

Khan, Amina (Department: 1764)

Bleaching and dyeing; fluid treatment and chemical modification

Chemical modification of textiles or fibers or products thereof

With coating, sizing, or lubricating

C510S276000, C510S295000, C510S298000

Reexamination Certificate

active

08075635

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.

REFERENCES:
patent: 3694364 (1972-09-01), Edwards
patent: 2006/0058212 (2006-03-01), McNamee
patent: WO 96/26831 (1996-09-01), None
patent: WO 96/26831 (1996-10-01), None
patent: WO 99/15614 (1999-04-01), None
patent: WO 03/010275 (2003-02-01), None
patent: WO 03/072695 (2003-09-01), None
patent: WO 03/072695 (2003-10-01), None
patent: WO 2004/067691 (2004-08-01), None

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