Method for the colour measurement of printed samples comprising optical brighteners

Method for the colour measurement of printed samples comprising optical brighteners

The process involves measuring a raw spectral reflection factor of a sample by illumination of the sample with light without ultraviolet portion, and measuring a fluorescence spectrum of the sample by illumination of the sample with only ultraviolet light. The measured fluorescence spectrum is conve...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: EHBETS, PETER, WEGMUELLER, MARK, VON ORELLI, ADRIAN, FRICK, BEAT
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
COLORIMETRY
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
PHYSICS
RADIATION PYROMETRY
TESTING
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The process involves measuring a raw spectral reflection factor of a sample by illumination of the sample with light without ultraviolet portion, and measuring a fluorescence spectrum of the sample by illumination of the sample with only ultraviolet light. The measured fluorescence spectrum is converted into a corrected fluorescence spectrum based on a correction model. The measured raw factor and the corrected spectrum are added to form a corrected spectral reflection factor, where the corrected factor is used for calculating values characterizing the color of the sample.