Máy so màu
Model : FD-5/FD-7
Hãng sản xuất : KonicaMinolta
Provides accurate evaluation, even on substrates with fluorescent whitening agents
As digital methods are increasingly used in graphics-related industries, there is a growing reliance on numerical control of the quality of printed materials, being both easier and faster than the visual evaluation the human eye can manage. However, since ultimately the final materials are intended to be seen by the human eye, the final measurement results must closely resemble the human eye results of visual evaluation.
The fact that the paper on which materials are printed influences the final viewed color is a potential problem. Fluorescent whitening agents (FWAs) are contained in many kinds of paper used for printing to give paper a brighter appearance, which can have a particularly large effect on the color of the printed materials when they’re viewed under Illuminant D50*1. For that reason, ISO 13655-2009*2 defined Measurement Condition M1 as having illumination corresponding to CIE Illuminant D50, which minimizes differences in measurement results due to paper fluorescence. This effect was very difficult to measure with conventional, previously available, handheld spectrodensitometers.
By utilizing Konica Minolta’s original VFS (Virtual Fluorescence Standard) technology, the FD-5 Spectrodensitometer offers unique solutions to this problem, enabling color evaluation while taking into consideration the fluorescence of the paper under Illuminant D50, the printing industry’s standard light source used for color evaluation. These instruments are the first to provide measurement results corresponding to ISO 13655 Measurement Condition M1.
*1 An artificial light source defined by the CIE as having a spectral distribution simulating daylight commonly used for color measurement.
*2 ISO 13655-2009: Graphic technology – Colorimetric computation spectral measurement and for graphic arts images
Accurate evaluation, even on substrates with fluorescent whitening agents
- Color and density control by printers
- Measurement of fluorescence in R & D of paper manufacturers and printing machinery manufacturers
- Printed color patch measurements
- Ink CCM systems input sensor