BLIND EMBOSSING
A colorless relief image applied to the substrate by deforming the material under pressure. On the paper substrate the image is produced by pressure, on the polymer substrate — by pressure and heat (embossing). Visualised in oblique and/or sliding light, has a tactile effect, may have convex or concave relief.
a b
a — Blind embossing (text and country outlines);
b — the same. Zoomed fragment. Oblique light
a b
a — Polymer substrate. Embossing (marked with arrows);
b — the same. Zoomed fragment. An image of a bird with the contours formed by microprinting. Sliding light
a b
a — Paper substrate;
b — the same. Blind embossing. Oblique light