Method for manufacturing laundry additive article
AssigneeThe Procter & Gamble Company
InventorsYousef Georges Aouad, Rajan Keshav Panandiker, Shannon Dale Wagers
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Abstract
A method for manufacturing a laundry additive article wherein a polymerizable or crosslinkable dye or particulate soil absorber is applied to one face of a substrate web and a cross-linker is separately applied to the coating of the dye or particulate soil absorber to cross-link the dye or particulate soil absorber on the substrate such that the dye or particulate soil absorber does not dissolve in the wash water. In accordance with one embodiment, the dye or particulate soil absorber and the cross-linker are applied as aqueous based solutions. Other laundry additives may be applied to the substrate using other coating techniques and particularly as a waxy or hot melt composition.
Claims33
A method for manufacturing a laundry additive article which comprises:
- (a) providing a web of an insoluble substrate,
- (b) applying a coating of a polymerizable or crosslinkable dye or particulate soil absorber to at least one face of the web,
- (c) applying a cross-linker for the dye or particulate soil absorber to the web, and reacting the cross-linker with the dye or particulate soil absorber wherein steps (b) and (c) can be performed in either order.
Dependencies are inferred from the claim text.