Method for the characterization of lacquer coated plastic surfac

Details Method for the characterization of lacquer coated plastic surfac Method for the characterization of lacquer coated plastic surfac

1999-04-30

2000-11-07

Font, Frank G.

Optics: measuring and testing

By configuration comparison

With photosensitive film or plate

118712, G01B 1106

Patent

active

061444545

ABSTRACT:
Method for determining the visual effect of lacquer coatings on plastic surfaces, in which one or more successive lacquer layers is/are each applied onto the entire surface of a substrate consisting of a plastic test sheet joined with a metal test sheet and dried or cured, wherein the two test sheets are joined together in such a manner as to form a common plane, or planes arranged parallel to or optionally partially overlapping each other, one of the lacquer layers is applied in the form of a wedge with a layer thickness gradient, and, on the lacquer coated substrate surface obtained in this manner, one or more surface properties influencing the visual impression is/are then measured at least on the plastic test sheet by means of one or more optical measurement methods at measurement points distributed over the entire area in the form of a grid screen, and, solely on the metal test sheet, the particular thickness of the wedge-shaped lacquer layer is also measured.

REFERENCES:
patent: 5991042 (1999-11-01), Rupieper et al.
Osterhold et al., "Characterization of Surface Structures By Mechanical and Optical Fourier Spectra", European Coatings Journal, No. 1-2 (1995), pp. 32-35.

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