Accurate and stable color uniformity for all paper grades
Valmet IQ Color Measurement
Valmet IQ Color Measurement provides online color analysis for the precise control of sheet color uniformity. IQ Color detects the detailed effects of furnish, paper dyes and brightening agents. The factory-calibrated IQ Color spectrophotometer is ideal for a variety of paper and board grades, including specialty papers, newsprint, printing papers, fine papers and covers.
Accurate and stable reflectance spectrum measurements
Easy-to-maintain LED technology for improved signal-to-noise ratio
Opacity-compensated measurements for precise control
Faster on-spec quality and reduced startup waste
Fast opacity-compensated measurements
IQ Color, with its accurate and stable reflectance measurements, allows precise and simultaneous control of multiple dyes and optical brightening agents.
The sensor’s high-speed measurements provide opacity-compensated color profiles. This includes fast measurements and scan averages for both UV-included and UV-excluded colors. Spectral opacity compensation also minimizes grade dependency.
A measurement geometry of 45/0° allows independence from other sheet surface properties.
High optical efficiency and data transition speed
IQ Color’s high optical efficiency enables fast LED light flash rates and excellent dynamic accuracy. The LED technology used in IQ Color improves the signal-to-noise ratio, and its few moving parts minimize maintenance. A longer lamp life increases running time.
High data transmission speed and advanced diagnostics enhance predictive maintenance.
Saving more than money
Valmet IQ Color Measurement’s advanced technology enables mills to reduce shade variation and other off-color quality issues.
IQ Color’s compact dual-spectrophotometer design uses fiber optics to maintain optical alignment and a stable illumination path, despite temperature changes and machine vibration.
This leads to a better end product and higher return on investment. Reducing waste also leads to greater environmental sustainability.
The Valmet IQ measurement advantage
All Valmet IQ measurement sensors share common design features that increase accuracy and reliability. They offer high data transmission speed and minimum maintenance requirements.
Intelligence inside the sensor heads and direct remote access capabilities provide advanced diagnostics for predictive maintenance and fast problem solving. Each sensor platform can be equipped with an air curtain for the measurement gap to equalize temperatures from on-sheet to off-sheet scanning and reduce dust accumulation.
The factory-calibrated measurement sensors are designed to tolerate harsh environments. Noise immunity meets European EMC directives.