Dye scavenger and method of production of dye scavenger
AssigneesMelina Kalagasidis Krusic, Nedeljko Milosavljevic, Marija Lucic Skoric
InventorsMelina Kalagasidis Krusic, Nedeljko Milosavljevic, Marija Lucic Skoric
Life of this patent
Estimating the term…
Abstract
A dye scavenger is provided that comprises a biodegradable hydrogel formed of at least one polymer chemically cross-linked by a cross-linker. The dye scavenger removes dyes rapidly, is prepared in an environmentally friendly manner, is reusable and biodegradable and can optionally incorporate other features of laundry compositions. The dye scavenger is useful for preventing dye transfer between fabrics in laundry and for removing dyes from waste water.
Claims20
A dye scavenger comprising a biodegradable hydrogel, wherein the hydrogel comprises:
- a first polymer chemically cross-linked by a cross-linker,
- a second polymer different from the first polymer,
- a laundry additive comprising a fragrance, enzyme, fabric softener, water softener, anti-soil re-deposition agent, optical brightener, ethanoic acid and/or 2-hydroxypropane-1,2,3-tricarboxylic acid,
- wherein the hydrogel has a pore size of from about 0.01 μm to about 100 μm, and
- wherein the biodegradable hydrogel has a degree of crosslinking based on a mass ratio of the first polymer to cross-linker from about 30 to about 1.
Dependencies are inferred from the claim text.