Apparatus for forming a shaped film product
A process capable of commercial scale manufacturing of inexpensive, shaped film products includes placing a mask over a substrate; delivering a film-forming composition through a nozzle to form a raw shape on the substrate; removing the mask; and solidifying the film-forming composition to provide the shaped film product disposed on the substrate. The mask has a delivery surface and an opposite substrate-facing surface and at least one aperture having a design corresponding to the desired shaped film product. The nozzle is disposed in sealing engagement with the delivery surface of the mask to the at least one aperture of the mask during delivery of the film-forming composition.
1. An apparatus for forming a shaped film product comprising;
a. a mask having an aperture corresponding to the desired shaped film product;
b. a mask support having a release-lined substrate disposed thereon, the mask support being arranged and configured to support the mask;
c. a system for delivering a liquid film-forming composition to the mask aperture comprising a liquid film-forming composition reservoir in fluid communication with at least one pump to deliver the liquid film-forming composition to the mask aperture; a pump controller to control the flow of the liquid film-forming composition, and a nozzle in partial sealing arrangement with the mask and having a machine direction dimension less than that of the mask aperture, the nozzle being arranged and configured to receive the liquid film-forming composition and to deliver it to the mask aperture,
wherein a shaped film product is formed on the release-lined substrate and is removable therefrom for use.
2. The apparatus of claim 1 wherein the system for delivering the liquid film-forming composition to the mask aperture is arranged and configured to deliver the liquid film-forming composition to the mask aperture in a substantially laminar flow.