ERX40 Inline Color Measurement of Paper Pulp Delivers Early Warning of Color Shifts
In paper production, color information is first available at the pulp stage. While the readings are not the same as on finished paper, a color shift in the pulp is an indication that there will be a color shift in the wet paper and final product. Optical Brightening Agents (OBAs) can also be measured at this stage.
Designed specifically to meet the needs of pulp manufacturing, the ERX40 spectrophotometer is mounted in a stainless steel housing and measures in-line, directly into the thick pulp (concentration of 3% to 5%) through a bypass system, measuring color, whiteness and optical brightness.
When used with ESWin QC software, the ERX40 enables accurate, often automatic, color adjustments that improve manufacturing output and reduce waste due to color drift.
