Method of forming colored or conductive coating layer on glass sheet

Claim 1

A method of forming a colored coating layer on a glass sheet, comprising the steps of: applying a paint comprising an inorganic pigment, a powdered glass and an organic liquid binder onto a major surface of the glass sheet so as to form a paint layer on said surface of the glass sheet, said liquid binder consisting essentially of at least one acrylate selected from the group consisting of monofunctional acrylates polymerizable by radiation of ultraviolet rays and bifunctional acrylates polymerizable by radiation of ultraviolet rays, said at least one acrylate having a room temperature viscosity suitable for a binder in a paint or paste for use in printing and capable of being completely decomposed without leaving solid carbon during a firing process adequate to fuse said glass powder of said paint; rendering said paint layer hard and untacky by radiation of ultraviolet rays; firing the glass sheet after hardening of said paint layer so as to melt said glass contained in the hardened paint layer and burn out the organic component of the hardened paint layer; and cooling the fired glass sheet.

Claim 2

A method of forming a colored coating layer on a glass sheet, comprising the steps of: applying a paint comprising an inorganic pigment, a powdered glass and an organic liquid binder onto a major surface of the glass sheet so as to form a paint layer on said surface of the glass sheet, said liquid binder consisting essentially of at least one acrylate selected from the group consisting of monofunctional acrylates polymerizable by radiation of ultraviolet rays and bifunctional acrylates polymerizable by radiation of ultraviolet rays, said at least one acrylate having a room temperature viscosity suitable for a binder in a paint or paste for use in printing and capable of being completely decomposed without leaving solid carbon during a firing process adequate to fuse said glass powder of said paint; rendering said paint layer hard and untacky by radiation of ultraviolet rays; firing the glass sheet after hardening of said paint layer so as to melt said glass contained in the hardened paint layer and burn out the organic component of the hardened paint layer; and cooling the fired glass sheet.

Claim 3

A method of forming an electrically conductive coating layer on a glass sheet, comprising the steps of: applying a paint comprising a metal powder, a powdered glass and an organic liquid binder onto a major surface of the glass sheet so as to form a paint layer on said surface of the glass sheet, said liquid binder consisting essentially of at least one acrylate selected from the group consisting of monofunctional acrylates polymerizabale by radiation of ultraviolet rays and bifunctional acrylates polymerizable by radiation of ultraviolet rays, said at least one acrylate having a room temperature viscosity suitable for a binder in a paint or paste for use in printing and capable of being completely decomposed without leaving solid carbon during a firing process adequate to fuse said glass powder of said paint; rendering said paint layer hard and untacky by radiation of ultraviolet rays; firing the glass sheet after hardening of said paint layer so as to melt said glass contained in the hardened paint layer and burn out the organic component of the hardened paint layer; and cooling the fired glass sheet.

Claim 4

A method of forming an electrically conductive coating layer on a glass sheet, comprising the steps of: applying a paint comprising a metal powder, a powdered glass and an organic liquid binder onto a major surface of the glass sheet so as to form a paint layer on said surface of the glass sheet, said liquid binder consisting essentially of at least one acrylate selected from the group consisting of monofunctional acrylates polymerizabale by radiation of ultraviolet rays and bifunctional acrylates polymerizable by radiation of ultraviolet rays, said at least one acrylate having a room temperature viscosity suitable for a binder in a paint or paste for use in printing and capable of being completely decomposed without leaving solid carbon during a firing process adequate to fuse said glass powder of said paint; rendering said paint layer hard and untacky by radiation of ultraviolet rays; firing the glass sheet after hardening of said paint layer so as to melt said glass contained in the hardened paint layer and burn out the organic component of the hardened paint layer; and cooling the fired glass sheet.

Claim 10

A method of forming a colored coating layer on a glass sheet, comprising the steps of: applying a first paint comprising a first inorganic pigment, a powdered glass and an organic liquid binder onto a major surface of the glass sheet so as to form a first paint layer on said surface of the glass sheet, said liquid binder consisting essentially of at least one acrylate selected from the group consisting of monofunctional acrylates polymerizable by radiation of ultraviolet rays and bifunctional acrylates polymerizable by radiation of ultraviolet rays, said at least one acrylate having a room temperature viscosity suitable for a binder in a paint or paste for use in printing and capable of being completely decomposed without leaving solid carbon during a firing process adequate to fuse said glass powder of said paint; rendering said first paint layer hard and untacky by radiation of ultraviolet rays; applying a second paint comprising a second inorganic pigment, a powdered glass and an organic liquid binder which consists essentially of said at least one acrylate onto the outer surface of the hardened first paint layer so as to form a second paint layer on said surface of the hardened first paint layer; rendering said second paint layer hard and untacky by radiation of ultraviolet rays; firing the glass sheet after hardening of said second paint layer so as to melt said glass contained in each of the hardened first and second paint layers and burn out the organic components of the hardened first and second paint layers; and cooling the fired glass sheet.

Claim 11

A method of forming a colored coating layer on a glass sheet, comprising the steps of: applying a first paint comprising a first inorganic pigment, a powdered glass and an organic liquid binder onto a major surface of the glass sheet so as to form a first paint layer on said surface of the glass sheet, said liquid binder consisting essentially of at least one acrylate selected from the group consisting of monofunctional acrylates polymerizable by radiation of ultraviolet rays and bifunctional acrylates polymerizable by radiation of ultraviolet rays, said at least one acrylate having a room temperature viscosity suitable for a binder in a paint or paste for use in printing and capable of being completely decomposed without leaving solid carbon during a firing process adequate to fuse said glass powder of said paint; rendering said first paint layer hard and untacky by radiation of ultraviolet rays; applying a second paint comprising a second inorganic pigment, a powdered glass and an organic liquid binder which consists essentially of said at least one acrylate onto the outer surface of the hardened first paint layer so as to form a second paint layer on said surface of the hardened first paint layer; rendering said second paint layer hard and untacky by radiation of ultraviolet rays; firing the glass sheet after hardening of said second paint layer so as to melt said glass contained in each of the hardened first and second paint layers and burn out the organic components of the hardened first and second paint layers; and cooling the fired glass sheet.

Claim 12

A method of forming a colored coating and electrically conductive coating layer on a glass sheet, comprising the steps of: applying a first paint comprising a first inorganic pigment, a powdered glass and an organic liquid binder onto a major surface of the glass sheet so as to form a first paint layer on said surface of the glass sheet, said liquid binder consisting essentially of at least one acrylate selected from the group consisting of monofunctional acrylates polymerizable by radiation of ultraviolet rays and bifunctional acrylates polymerizable by radiation of ultraviolet rays, said at least one acrylate having a room temperature viscosity suitable for a binder in a paint or paste for use in printing and capable of being completely decomposed without leaving solid carbon during a firing process adequate to fuse said glass powder of said paint; rendering said first paint layer hard and untacky by radiation of ultraviolet rays; applying a second paint comprising a powdered glass and an organic liquid binder which consists essentially of said at least one acrylate onto the outer surface of the hardened first paint layer so as to form a second paint layer on said surface of the hardened first paint layer; rendering said second paint layer hard and untacky by radiation of ultraviolet rays; firing the glass sheet after hardening of said second paint layer so as to melt said glass contained in each of the hardened first and second paint layers and burn out the organic components of the hardened first and second paint layers; and cooling the fired glass sheet.

Claim 13

A method of forming a colored coating and electrically conductive coating layer on a glass sheet, comprising the steps of: applying a first paint comprising a first inorganic pigment, a powdered glass and an organic liquid binder onto a major surface of the glass sheet so as to form a first paint layer on said surface of the glass sheet, said liquid binder consisting essentially of at least one acrylate selected from the group consisting of monofunctional acrylates polymerizable by radiation of ultraviolet rays and bifunctional acrylates polymerizable by radiation of ultraviolet rays, said at least one acrylate having a room temperature viscosity suitable for a binder in a paint or paste for use in printing and capable of being completely decomposed without leaving solid carbon during a firing process adequate to fuse said glass powder of said paint; rendering said first paint layer hard and untacky by radiation of ultraviolet rays; applying a second paint comprising a powdered glass and an organic liquid binder which consists essentially of said at least one acrylate onto the outer surface of the hardened first paint layer so as to form a second paint layer on said surface of the hardened first paint layer; rendering said second paint layer hard and untacky by radiation of ultraviolet rays; firing the glass sheet after hardening of said second paint layer so as to melt said glass contained in each of the hardened first and second paint layers and burn out the organic components of the hardened first and second paint layers; and cooling the fired glass sheet.