Why Does Corrugating Roll Grease Turn Black? Key Causes Explained.
During corrugated board production, some manufacturers may observe that the grease used for corrugating rolls gradually turns dark or black. This phenomenon is not unusual and is typically caused by a combination of operating conditions and lubricant performance. Understanding the root causes helps improve lubrication management and extend corrugating roll service life. High-Temperature Oxidation Corrugating […]