Polyurethane-based primer for enhancing adhesion of liquid toner
AssigneeMichelman, Inc.
InventorBaptiste Regnier
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Abstract
A water-based primer coating for use on paper and polymeric substrates is provided for enhancing the adhesion of liquid toner to the substrates, which are designed to be printed using an electrophotographic printing device. The primer coating includes an aliphatic polyurethane dispersion and an anionic wax emulsion, and is substantially free of copolymers of ethylene and acrylic acid.
Claims18
A primer coating for enhancing adhesion of liquid toner to a substrate, said coating comprising:
- a) an aliphatic polyurethane dispersion;
- b) an anionic wax emulsion comprising polyethylene wax and carnauba wax;
- wherein said wax emulsion further comprises high density polyethylene wax;
- wherein said coating is substantially free of copolymers of ethylene and acrylic acid.
A primer coating for enhancing adhesion of liquid toner to a substrate, said coating comprising:
- a) an aliphatic polyurethane dispersion;
- b) an anionic wax emulsion comprising carnauba wax;
- wherein said wax emulsion further comprises high density polyethylene wax;
- wherein said coating is substantially free of copolymers of ethylene and acrylic acid.
A method of applying a primer coating to a substrate for enhancing adhesion of liquid toner thereto comprising:
- providing a substrate having first and second major surfaces;
- applying a primer coating to at least one of said major surfaces of said substrate, said primer coating comprising an aliphatic polyurethane dispersion and an anionic wax emulsion comprising polyethylene wax and carnauba wax;
- wherein said wax emulsion further comprises high density polyethylene wax;
- wherein said coating is substantially free of copolymers of ethylene and acrylic acid.
Dependencies are inferred from the claim text.