Boots – shoes – and leggings
Patent
1990-02-12
1992-02-18
Black, Thomas G.
Boots, shoes, and leggings
395131, 364DIG2, G01J 346
Patent
active
050899775
ABSTRACT:
A process for controlling the inking of printed products, wherein an original provided with ink control fields, is subjected to a colorimetric measurement includes colorimetrically measuring diffuse-reflectance of at least one three-color screen field of the original and computing and storing a setpoint color locus therefrom spectrally measuring color-related diffuse-reflectance values and diffuse-reflectance values of a three-color screen field by measuring control fields on a printed sheet which has been produced in a set-up phase, calculating an actual color locus from the spectral diffuse reflectance of the three-color screen field, taking into account a distance between the setpoint color locus and the actual color locus, and taking into account preset inking values and machine-specific characteristic curves, calculating a theoretical actual color locus from the measured color-related diffuse-reflection values, repeatedly calculating the theoretical actual color locus, if necessary, with the respective ink deviation until the deviation is at a minimum, and basing the production run on the thus obtained inking values.
REFERENCES:
patent: 4494875 (1985-01-01), Schramm et al.
patent: 4649502 (1987-03-01), Keller et al.
patent: 4706206 (1987-11-01), Benoit et al.
patent: 4752892 (1988-06-01), Lecha
patent: 4901254 (1990-02-01), Dolezalek et al.
patent: 4967379 (1990-10-01), Ott
patent: 4975862 (1990-12-01), Keller et al.
Freyer Norbert
Pflasterer Jurgen
Black Thomas G.
Greenberg Laurence A.
Heidelberger Druckmaschinen AG
Lerner Herbert L.
Ramirez Ellis B.
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