Glass segments including identification marking

A glass pane that is tempered and then submitted to a heat-soak test, comprising:

• a marking field on a local portion of a surface of a side of the glass pane, the marking field including an uneven surface structure, the local portion of the surface of the side of the glass pane being a limited surface area on the side of the glass pane that is smaller than a total surface area of the side of the glass pane;
• and
• a marking color positioned on said marking field so as to produce a marking layer, the marking color filling said uneven surface structure so as to create an intimate adhesive bond between the marking layer and the marking field,
• wherein the marking color is a thermochromic pigment that is irreversibly modified by the heat-soak test, and
• wherein the uneven surface structure of the marking field is discontinuous such that bare portions of the side surface of the glass pane are exposed to the marking color.

A tempered glass pane, comprising:

• a first face and a second face;
• a marking field located on a surface of said first face of said glass pane, the marking field including an uneven surface that is more rough than portions of the surface of said first face that are not within said marking field;
• and
• a marking layer of thermochromic marking color deposited on said marking field such that the marking layer penetrates intermediate spaces or hollows within the marking field so as to create an intimate adhesive bond between the marking layer and the marking field,
• wherein the thermochromic marking color is a pigment that is irreversibly modifiable by a heat treatment of the glass pane, and
• wherein the uneven surface of the marking field is discontinuous such that bare portions of the surface of the first face of the glass pane are exposed to the marking layer.

A tempered glass pane, comprising:

• a first face and a second face;
• a marking field located on a surface of said first face of said glass pane, the marking field including an uneven surface that is more rough than portions of the surface of said first face that are not within said marking field;
• and
• a marking layer of thermochromic marking color deposited on said marking field such that the marking layer penetrates intermediate spaces or hollows within the marking field so as to create an intimate adhesive bond between the marking layer and the marking field,
• wherein the thermochromic marking color is a pigment that is irreversibly modified by a heat treatment of the glass pane, and
• wherein the uneven surface of the marking field is discontinuous such that bare portions of the surface of the first face of the glass pane are exposed to the marking layer.

A glass pane that is tempered and then heat-treated, comprising:

• a marking field that includes an uneven surface structure and that is located on a limited area of a smooth side surface of the glass pane, the limited area being smaller than a total area of the side surface of the glass pane, and the uneven surface structure being more rough than portions of the side surface of the glass pane that are outside of the limited area of the side surface of the glass pane;
• and
• a marking layer located on the marking field such that the marking layer penetrates intermediate spaces or hollows within the marking field so as to create an intimate adhesive bond between the marking layer and the marking field,
• wherein the marking layer includes a color containing a thermochromic pigment that is irreversibly modified at a temperature at which a heat treatment is conducted, so as to visually indicate that the heat treatment has been conducted on the glass pane,
• wherein the intermediate spaces or hollows in the marking field have a width ranging from 0.5 to 0.7 mm.

A glass pane that is tempered and then heat-treated, comprising:

• a marking structure including a backed coating having a non-planar first surface and a planar second surface, the marking structure being disposed such that the planar second surface abuts a portion of a smooth side surface of the glass pane, the non-planar first surface being more rough than the side surface of the glass pane;
• and
• a marking layer disposed on the marking structure such that the marking layer penetrates intermediate spaces or hollows within the non-planar first surface of the marking structure and an intimate adhesive bond exists between the marking layer and the marking structure,
• wherein the marking layer includes a color containing a thermochromic pigment that is irreversibly modified at a temperature at which a heat treatment is conducted, so as to visually indicate that the heat treatment has been conducted on the glass pane.

A glass pane that is tempered and then heat-treated, comprising:

• a marking field including a backed coating and an uneven surface structure, the marking field being located on a limited area of a smooth side surface of the glass pane, the limited area being smaller than a total area of the side surface of the glass pane, and the uneven surface structure being more rough than portions of the side surface of the glass pane that are outside of the limited area of the side surface of the glass pane, the backed coating being deposited on the smooth side surface;
• and
• a marking layer located on the marking field such that the marking layer penetrates intermediate spaces or hollows within the marking field so as to create an intimate adhesive bond between the marking layer and the marking field,
• wherein the marking layer includes a color containing a thermochromic pigment that is irreversibly modified at a temperature at which a heat treatment is conducted, so as to visually indicate that the heat treatment has been conducted on the glass pane.