Benefit agent delivery system using electroplating
AssigneeE Ink Corporation
InventorLei Liu
Life of this patent
Estimating the term…
Abstract
A benefit agent delivery system whereby benefit agents can be delivered on demand. The benefit agent delivery system comprises a first electrode layer, a microcell layer, a sealing layer, and a second electrode layer. The microcell layer comprises a plurality of microcells, each microcell of the plurality of microcells containing a carrier and a benefit agent, and a metallic layer spanning an opening of each microcell of the plurality of microcells. Application of an electric field across a microcell causes the removal of at least a portion of the metallic layer from the microcell opening, and enabling the benefit agent to be delivered from the benefit agent delivery system.
Claims15
A benefit agent delivery system comprising:
- a first electrode layer;
- a microcell layer comprising a plurality of microcells, each microcell of the plurality of microcells including an opening, each microcell of the plurality of microcells containing a metallic layer and a medium, the metallic layer comprising a metal and spanning the opening of each microcell of the plurality of microcells, and the medium comprising a carrier and a benefit agent;
- a sealing layer located adjacent to the metallic layer of the microcell layer;
- and
- a second electrode layer;
- the first electrode layer, the microcell layer, the sealing layer and the second electrode layer being vertically stacked upon each other in this order;
- wherein, when a voltage is applied from a voltage source between the first electrode layer and the second electrode layer across a microcell, at least a portion of the metallic layer is removed from the opening of the microcell and deposited on the microcell surface opposite to the opening.
Dependencies are inferred from the claim text.