Metso centre dot Chem Color Mat System for On-Line Measurement of Coating Color Properties in Coater Supply System

摘要

The quality controlling for the coating color used to be carried out so far by picking up color samples periodically from the line and bringing them to a laboratory for analysis. However, in the much improved and high speed production sites of these days, the above method would inevitably bring us about a large amount of loss in the color production, since the method would consume much time, after any detection of undesirable things and before any counter-measure to be taken to stop it would be taken. This has become the more peculiar, the hirer the machine speed has got, and" on-line color analysis" has become a must with that much increased coater speed. On the other hand, the continuous color make-down system has made its debut, out of the tendency to minimize the color consumption and to best optimize the production efficiency, and it calls for" on-line color analysis" has become a must with that much increased coater speed. On the other hand, the continuous color make-down system has made its debut, out of the ten-dency to minimize the color consumption and to best optimize the production efficiency, and it calls for" on-line color analysis" as an indispensable part of it. "COLOR-MAT" is a highly reliable an on-line color analysis system which on-line takes measurements of temperature, solid content, air content, air content, and rheology factors, and is even equipped with a self-cleaning system. It can be connected to whichever existing DCS systems in mills, and has been introduced to a larger number of paper mills in Europe. The best position along on the coater line at which" COLOR-MAT" should be line-connected, should be as much closer to a coater head as possible, to optimize the coater operation and consequent paper quality.