On-demand agent dispensing devices and related methods

An on-demand liquid or gelatinous agent dispensing kit, comprising:

• a container containing a volume of a liquid or gelatinous agent;
• and
• a flexible patch configured to contain, and provide on-demand dispensing of, the agent via compression of the patch in a thickness direction thereof, the patch comprising:
• an adhesive layer configured to removably couple the patch to a surface, the adhesive layer defining an inner face of the patch;
• at least one reservoir layer that is configured to absorb and retain the agent therein, the at least one reservoir layer overlying the adhesive layer in the thickness direction;
• at least one dispenser layer overlying the at least one reservoir layer in the thickness direction comprising a plurality of solid portions and an array of a plurality of openings extending through a thickness thereof, the at least one dispenser layer configured to inhibit evaporation of the agent, and control a flow of the agent from the at least one reservoir layer upon the compression of the patch in the thickness direction, when the agent is contained within the at least one reservoir layer;
• and
• at least one backer layer positioned between the adhesive layer and the at least one reservoir layer in the thickness direction, the at least one backer layer being substantially impervious to the agent,
• wherein the solid portions of the at least one dispenser layer and portions of the at least one reservoir layer underlying the plurality of openings of the at least one dispenser layer define an outer face of the patch, and
• wherein the at least one reservoir layer is void of the agent absorbed therein.