Non-Contact Caliper Measurement Systems on High Speed Packaging Board Lines
Non-contact optical gauges eliminate mechanical board compression on high-speed lines, enabling tighter cross-machine caliper targets and reduced fiber mass.
Grammage Reduction
Substrate Specification
Physical mass reduction defines a technical adjustment to the density of paper or cardboard substrates by lowering the fibre volume per square metre. Industry professionals apply grammage reduction to lower the procurement costs of packaging materials and to meet specific weight targets in shipping environments. Precise control of the headbox settings and the dilution water ratio during the papermaking process governs the final output.
Deviations from the target weight compromise the structural rigidity required for high speed automated filling lines.
Conversion Tolerance
Finished rolls maintain a specific variance threshold to ensure that printing equipment and packaging machines continue to function without jamming or tearing. Converting operations often demand tight consistency because thinner material requires more accurate tension control to prevent web breaks during flexographic or offset printing. Operators monitor these properties using calibrated scales to verify that the reduction maintains the expected burst strength and tear resistance of the sheet.
Variations in the fibre orientation or the moisture content influence the performance of the sheet even when the total mass falls within the target range.
Supply Chain Consequence
Logistics managers utilize these lighter substrates to increase the total units transported within a single container while reducing the fuel consumption associated with heavy shipping loads. Environmental sustainability goals drive the adoption of these products as the practice minimizes the raw virgin fibre input needed for each finished box or label. Warehousing facilities gain space through the stacking of higher quantities of thinner cartons on standard pallets.
Lowering the mass of secondary packaging supports the broader goal of resource efficiency across the entire manufacturing sector.