Paper caliper is measured using a micrometer. This tool allows for the precise determination of the paper's thickness.
Caliper refers to the thickness of a sheet of paper. According to the provided reference, this measurement is typically expressed in thousandths of an inch. The key instrument used for taking this measurement is a micrometer.
Understanding paper caliper is important because it impacts various paper properties and applications, including:
- Stiffness: Thicker paper is generally stiffer.
- Printability: Caliper affects how paper feeds through printers and absorbs ink.
- Feel and bulk: It contributes to the overall substance and feel of the paper.
Measurement Precision and Variance
Precise measurement with a micrometer is crucial. The reference indicates that normally, paper caliper should not have more than a +/- 5% variance within a single sheet. This standard helps ensure consistency in manufacturing and printing processes.
Maintaining minimal variance is essential for quality control, particularly in high-speed printing and converting operations where consistent thickness prevents issues like jams or uneven ink application.
