EMCO: NDT 100-S Automatic Wet Expansion tester for 3 testing standards

The new emco NDT Wet Expansion tester for paper realizes a dynamic measuring principle for the determination of the wet stretch course. The testing of wet stretch of paper is relevant for the assessment of the material behaviour in manufacturing process as well as in application only when a dynamic measurement procedure is used.

The expansion measurement of a paper sample can be performed in different test liquids. In combination with immersion and expansion time the application process can be optimally simulated.

Expansion of paper caused by liquids means the swelling of the fibers by absorption of liquid. Thereby paper fibers swell less in machine direction than in cross direction. Equivalent results arise from wet stretch measurements at standard climatic conditions (23 °C, 50 % rH) and defined counterweights (Fenchel, Mütek CD, Mütek MD).

Automatic Wet Expansion tester according to Fenchel, Mütek CD and MD in one device.

Features

Contact-free data logging with laser sensor clothes the peripheral influences like friction or counteracting forces of the measuring person
Digital measurement accuracy 0.01 %
Variable period of measurement about 1 – 900 seconds
Adjustable immersion time and time to expand after separation paper - liquid
Automatic zero calibration and compensation of the clamping field
Integrated climatic sensor
Graphical view of the course of the measurement
Management of the measuring values at the pc (data base and viewer software)
Reduced operator effort because of magnet terminals under 30 seconds
Sample preparation with the electric Multi Sample Slitter emco MSS (optional)
Climate module for standard conditions independent of the environment (optional)

Applications :

The expansion measurement of paper is used in research & development and quality control for:

Decor paper
Poster paper
Wallpaper
Speciality papers
all papers in further processing.

Link : NDT 100-S