Customizable apparatus and method for transporting and depositing fluids

A system for delivering one or more fluids on a substrate, the system comprising:

• 6 or less rotating rolls disposed in operative relationship with a substrate, wherein each of the rotating rolls comprise:
• a central longitudinal axis, wherein the rotating roll rotates about the central longitudinal axis;
• an exterior surface defining an interior region and substantially surrounding the central longitudinal axis;
• a vascular network configured for transporting at least one of the one or more fluids in a predetermined path from the interior region to the exterior surface of the rotating roll, the vascular network comprising at least one main artery, at least one capillary and a plurality of fluid exits on the exterior surface, wherein:
• the at least one main artery comprises an inlet and is substantially parallel to the central longitudinal axis of the rotating roll, wherein the fluid enters the vascular network at the inlet;
• and
• wherein the at least one capillary is attached to the at least one main artery and is in fluid communication with the at least one main artery and at least two fluid exits through a substantially radial fluid path in a first tree expanding radially and three-dimensionally.

A system for dosing one or more fluids on a substrate, the system comprising:

• a rotating roll comprising:
• a central longitudinal axis, wherein the rotating roll rotates about the central longitudinal axis;
• an exterior surface defining an interior region and substantially surrounding the central longitudinal axis;
• a vascular network configured for transporting the one or more fluids in a predetermined path from the interior region to the exterior surface of the rotating roll, the vascular network comprising a plurality of main arteries, a plurality of capillaries and a plurality of fluid exits on the exterior surface, wherein:
• each main artery comprises an inlet and is substantially parallel to the central longitudinal axis of the rotating roll, wherein the fluid enters the vascular network at the inlet;
• wherein the each capillary is attached to one of the main arteries and is in fluid communication with the one of the main arteries and at least one fluid exit through a substantially radial fluid path in a first tree expanding radially and three-dimensionally;
• and
• wherein a first main artery comprises a first fluid, a second main artery comprises a second fluid, and a third main artery comprises a third fluid;
• wherein at least one of the first fluid, second fluid, or third fluid is a polyurethane precursor and wherein one of the first fluid, second fluid, or third fluid is a High Internal Phase emulsion.