Optimizing Creasing Rule Geometry for Coated Paperboard Packaging
Optimizing creasing rule tip radius and channel geometry enables controlled internal board delamination, eliminating coating cracking and springback jams.
Lorentzen Wettre Tester
Laboratory Instrument
Quality control in paper mills utilizes specialized testing equipment to measure the physical and mechanical properties of pulp sheets and paperboards. The lorentzen wettre tester represents a widely accepted instrument range for determining bending stiffness, tensile strength, and burst resistance. These automated devices ensure precise clamping, controlled force application, and digital reporting of test data.
Mill operators rely on these instruments to verify that manufactured reels meet customer specifications. Consistent use of this machinery helps manufacturers prevent out-of-specification shipments and maintain high product uniformity.
Measurement Consistency
Standardized sample preparation is necessary for achieving repeatable results on these precision instruments. Air-conditioned testing laboratories maintain standard temperature and humidity to ensure that moisture content does not alter the physical strength of the fibers. The user places the pre-cut strip in the pneumatic clamps, and the machine executes the test cycle automatically.
This automation minimizes human error and reduces measurement variability.
Process Feedback
High-speed packaging lines demand consistent board properties to avoid jams and misfeeds during folding and filling. Data from these tests provides immediate feedback to the wet end of the paper machine, allowing operators to adjust refining, plies, and chemical additives. Maintaining these instruments through regular servicing and calibration ensures the reliability of the mill’s quality assurance program.