製紙業において、色と蛍光増白剤の情報が初めて使用可能になるのはパルプ段階です。パルプ色の変動は仕上がった用紙の測定値と異なりますが、ウェットペーパーや最終製品に色変動が発生することを予期します。ColorXRA 45 パルプは厚みのあるパルプの色、白色、輝度を測定するコンパクトな 45/0 インライン分光測色計です。
Designed specifically to meet the needs of pulp manufacturing, the ColorXRA 45 Pulp spectrophotometer is mounted in a stainless steel housing and measures inline, directly into the thick pulp (concentration of 3% to 5%) through a bypass system. This device can measure color, whiteness and optical brightness to identify shifts before they impact the final product.
When blending two lines of raw material, such as dark and light, to a constant level, color and brightness can shift. The ColorXRA 45 Pulp monitors this during production to control the addition of waste and visualize the homogeneity of the pulp after each dye addition to ensure optimum dye consumption without significantly changing the color of the total pulp for increased product quality.
The ColorXRA 45 Pulp delivers excellent short-term stability due to its use of real dual beam measurement, and its automatic wavelength calibration ensures exceptional measurement accuracy and long-term stability. It is a must-have color measurement instrument to make objective color assessment for pulp manufacturing and is the ideal complement to ESWin QC software, the ColorXRA 45 Lab, and the ColorXRA 45 Inline for a complete measurement system for paper machines.
| 光学幾何条件 | 45°/0° |
| 測定時間 | flash |
| 測定距離 | 10 mm |
| 短期繰り返し精度 - ホワイト | dL*, da*, db* < 0.03 |
| 分光間隔 | 1 nm |
| 分光範囲 | 330-730 nm |