Articles

Roll Hardness & Winding

Roll hardness profiles, winding quality and finding defective rolls before they reach the customer.

Articles on this topic

Roll Hardness & Winding10 June 2026

Roll Hardness Profilers for Paper, Board, Films and Foils Compared

Compare roll hardness profilers for paper, board, films and foils by measurement speed, profile detail, data handling and suitable applications.

Read article

Roll Hardness & Winding23 April 2026

Hidden roll defects are costing you more than you think

Hidden roll defects pass regular quality control but cause web breaks, waste and instability in converting. Learn how roll hardness profiling helps reveal them.

Read article

Roll Hardness & Winding26 March 2026

Using Hardness Variation (CV%) to Identify Defective Rolls

Learn how CV% from roll-hardness profiles helps identify inconsistent rolls, compare production quality and establish practical warning limits.

Read article

Roll Hardness & Winding15 January 2026

Finding soft plastic film rolls before converting with roll hardness profiling

A plastic film producer had about 25% of its rolls rejected in converting. Hardness profiles at the rewinder revealed a soft edge roll that visual checks missed.

Read article

Roll Hardness & Winding5 September 2025

Roll Hardness Profiles – What Can the Statistics Tell Us?

What mean, standard deviation, CV%, min, max and peak-to-peak tell you about a roll hardness profile, and how to use them to flag unevenly wound rolls.

Read article

Roll Hardness & Winding10 May 2025

Hidden defects in rolls: a closer look with Tapio RQP Live

Three roll cases measured with Tapio RQP Live: hardness variation consistent with uneven film tension, hardness following film thickness, and soft paper roll edges.

Read article

Measure your own rolls with RQP Live

See continuous roll hardness profiling, live pass/fail results and Tapio RollView analysis on a remote demo.

Book an RQP Live demo→Explore RQP Live