Marking of hot glass using a carrier ribbon bearing a laser ablated coating pattern
AssigneeInfosight Corporation
InventorJohn A. Robertson
Life of this patent
Estimating the term…
Abstract
Method for marking hot glass article having a surface uses a flexible carrier ribbon bearing a laser ablatable, high temperature, diffusely reflective coating, preferably white in color. A pattern is imaged in said coating on carrier ribbon by laser ablation. The patterned carrier ribbon is pressed against the surface only for a time adequate for transferring the patterned coating to the surface. The carrier ribbon then is released from pressing against the surface. The transferred image thickness may be limited by solid particles within the coating.
Claims24
Method for marking a hot article having a surface, which comprises the steps of:
- (a) providing a flexible carrier ribbon bearing a laser ablatable, high temperature, diffusely reflective coating;
- (b) imaging a pattern on said carrier ribbon by laser ablation;
- (c) pressing said patterned carrier ribbon against said surface only for a time adequate for transferring said patterned coating to said surface;
- and
- (d) releasing said carrier ribbon from pressing against said surface.
A ribbon useful in marking of hot articles, which comprises:
- (a) a flexible carrier ribbon;
- (b) a laser ablatable, high temperature, diffusely reflective coating carried by said flexible carrier ribbon, said coating being transferable to a hot article when pressed against said hot article, said coating having a thickness, T0, said coating containing limiting particles having a thickness, D0, wherein T0>D0.
Dependencies are inferred from the claim text.