Method and installation for surface marking of a substrate
AssigneeBecton Dickinson France
InventorJean-Pierre Grimard
Life of this patent
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Abstract
A method for surface marking a solid substrate (1), according to which, during an exposures sequence, said substrate is exposed to coherent monochromatic light (2) in order to strip said substrate over an indented surface (3), wherein the exposure conditions, including duration, are set in order to restrict said indented surface to simple abrasion designed for the bonding of a printing medium, and the exposure sequence is followed by a sequence of projecting in discrete form, during which particles (6) of said printing medium, the deposition of which subsequently defines a printing element (4), are projected in targeted fashion into the indented surface (3, 31). A device for marking a surface of a substrate is also provided.
Claims26
A method of marking a surface of a solid substrate, comprising the steps of:
- exposing said surface of said solid substrate to a coherent monochromatic light under conditions and for a time sufficient to strip a portion of said surface to form at least one indented surface defining a first area on said solid substrate;
- and
- projecting a printing medium comprising a plurality of particles into a predetermined pattern on said indented surface, wherein said particles adhere to said indented surface and define a printed element.
A device for marking a surface of a solid substrate, comprising:
- a source of coherent monochromatic light;
- a first head for projecting a beam of said light;
- a printing medium comprising a plurality of particles;
- a second head for projecting a jet of said particles of said printing medium;
- and
- control means for selectively controlling said beam and said jet, said beam being selectively controlled to form at least one indented surface on said substrate, and said jet being selectively controlled to project said particles on said indented surface.
Dependencies are inferred from the claim text.