Bronzing process

Bronzing is among the oldest print finishing processes and the achieved surface effect is still unique.

The technique is still used today for high quality labels and packaging. In a complex process, an adhesive ink is applied as an image to the substrate surface and then reflective bronzing powder is dusted over the entire substrate (paper, cardboard). The excess powder is brushed off and can be saved for another use.

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Constant®

Inorganic coated gold bronze pigments that have a significantly higher resistance to temperature and chemicals than the basic pigments in the Luminor® series. They are primarily used in screen printing inks with aggressive formulation components and for high resistance requirements.

Colors: Rich gold, rich pale gold and pale gold (other colors by request) Form of delivery: Powders

D 50 value [µm] Solid content Application
Constant 2210/N 50 100
Constant 2250/N 35 100

Luminor®

The relatively coarse types in the Luminor® series (d50 from 20 – 50 µm) are primarily used in the screen printing process and, due to their particle sizes, they produce highly brilliant metallic effects.

Form of delivery: Powder and water-based Aquador compositions in paste form (conventional solvents by request).

D 50 value [µm] Solid content Application
Luminor 2210 50 100
Luminor 2250 35 100
Luminor 2550 35 100
Luminor 2580 20 100

Reflex®

Particularly coarse pigments with a particle size (d50) of > 50 µm that produce highly brilliant effects in a bronzing process.

Colors: Rich gold, rich pale gold and pale gold (other colors by request). Form of delivery: Powders

D 50 value [µm] Application
Reflex 1130 42
Reflex 1140 42
Reflex 1150 42
Reflex 1540 50
Reflex 1711 65

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