Investigation of the surface quality of paper/board and of liquid properties by gathering the wetting and penetration in particular of high viscous and contaminating liquids
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Ultrasonic Tester for the Determination of Paper/Board and Liquid Properties via the Wetting and Absorption Behavior specific of high viscous liquids |
- Main application: prediction of converting properties
- printability
- Offset: strike-in of fountain solutions, oils or inks
- Gravure: missing dots potential in LWC papers
- Flexo: wetting and penetration behavior of flexo inks
- Ink jet: wetting and penetration behavior of ink jet inks
- glueability
- Surface sizing, surface porosity
- Film generation of dispersion adhesives
- Dynamic Water Retention of coating colors
- Advantages:
- No cleaning effort after measurement
- Small amount of testing liquid required: 3.5 ml
- Main user:
- Chemical suppliers (adhesives, printing ink)
- Producers of paper/board
| Measuring Principle |
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The test liquid is applied on the horizontal area of a measuring cell, which includes the ultrasound transmitter, possibly together with a protection foil. The paper sample is applied by means of double-sided adhesive tape at the measuring head, which contains the ultrasound receiver.
For a measurement the measuring head is lowered together with the paper sample until it is contacted with the test liquid.
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- Features
- No need for cleaning after measurement
- Only 3.5 ml of testing liquid required
- Testing liquids: adhesives, printing ink, ink jet ink, oil, fountain solution, water, coating color
- No liquid penetration into the cut edges of samples
- Process simulation: pressure impulse at the moment of liquid contact
- Test results:
- Intensity-Time-Diagram
- automatic calculated quality indices
- Measuring range:
- grammages up to approx. 600 g/m²
- liquid viscosities up to 150.000 mPa.s
- Testing at ambient temperature
- Automatic self-test prior to each measurement
- User-friendly high-performance software
- A single mouse click exports the analytical data to EXCEL
- Easy to operate
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Absorption of adhesive with board:
Glueing result with adhesive A inadequate because of the too high dewatering of the glue. Formation of a barrier layer with adhesive B, good gluing result. |
- Technical Data
- Measuring frequency: 1MHz
- Data structure: ASCII
- Sensor diameter: 35mm
- Dimensions:
- Basic Device HxWxD 440x160x300mm
- MCU HxBxT 150 x 150 x 250mm
- Weight: approx. 19kg
- Operating voltage: 115V 60Hz / 220V 50Hz
- PC software: all common operating systems
- volume of testing liquids: 3,5ml
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