Gap drying with insulation layer between substrate and heated platen
AssigneeMinnesota Mining and Manufacturing Company
InventorsRobert A. Yapel, Gary Lee Huelsman, Tom M. Milbourn, William Blake Kolb
Life of this patent
Estimating the term…
Abstract
A gap drying system moves a substrate having a coated side and a non-coated side between a heated platen disposed on the non-coated side of the substrate and a condensing platen disposed on the coated side of the substrate. An insulation layer is disposed between the heated platen and the non-coated side of the substrate.
Claims22
A gap drying system comprising:
- a moving substrate having a coated side and a non-coated side;
- a heated platen disposed on the non-coated side of the substrate;
- a condensing platen disposed on the coated side of the substrate;
- and
- an insulation layer disposed between the heated platen and the non-coated side of the substrate.
A method of drying a substrate having a coated side and a non-coated side, the method comprising the steps of:
- locating a first platen on the non-coated side of the substrate;
- locating an insulation layer between the first platen and the non-coated side of the substrate;
- locating a second platen having a condensing surface on the coated side of the substrate;
- heating the first platen to caused liquid to evaporate from the coated side of the substrate to produce a coating vapor;
- condensing the coating vapor on a condensing surface of the second platen;
- and
- moving the substrate between the first platen and the second platen.
A gap drying apparatus for drying a liquid on a first side of a moving substrate, the moving substrate further having a second side adjacent the first side, the gap drying apparatus comprising:
- a condensing platen;
- a heated platen disposed adjacent the condensing platen;
- and
- an insulation layer disposed between the heated platen and the condensing platen, wherein a gap exists between the insulation layer and the condensing platen through which a moving substrate may travel.
Dependencies are inferred from the claim text.