Paper stiffness meter
A paper stiffness tester measures a sheet's resistance to bending, critical for evaluating packaging materials, labels, and printing substrates. This article outlines key standards, technical specs, operational mechanics, and testing principles to guide users in optimizing material performance and quality control.
Applicable Standards
The tester adheres to global protocols like ISO 2493 (Taber-type stiffness), TAPPI T543 (bending resistance), and GB/T 22364 (paper stiffness). Compliance ensures reliable data for industry certifications and material benchmarking.
Main Parameters
| Parameter | Specifications |
|---|---|
| Measurement Range | 0.1-50 mN·m (adjustable) |
| Resolution | ±0.01 mN·m |
| Test Angle | 15° or 7.5° (selectable) |
| Sample Size | Standard (e.g., 38×50 mm) or customizable |
| Data Output | Digital display, USB export |
Working Principle
The tester uses a rotating arm or pendulum to apply controlled force, bending the sample until a set angle is reached. Sensors measure the resisting force, and software calculates stiffness (mN·m). Results highlight material rigidity for structural applications.
Test Principle
Simulating real-world bending forces, the test quantifies a paper's ability to maintain shape under stress. Data supports material development, quality assurance, and compliance with packaging or printing standards.
This guide equips industries to enhance product performance, reduce deformities, and ensure adherence to global quality norms through precise stiffness testing.