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Comprehensive characterization of water balance performance for offset inks and fount solutions with
LithoTack
The LithoTack is like two instruments in one. On one hand you can expect a very precise, pure tack measurement on the other hand the water balance performance is determined in same test. These and more water balance parameters can be measured quickly and accurately under press conform conditions:
- minimal water content for plate cleaning and maximal water content for correct tack (water tolerance range)
- Interaction with hydrophobic and hydrophilic surfaces (for example, plate cleaning up)
- Dynamics of water pickup and water release
- Linetack as function of water content (includes a tack measurement of a dry ink)
- Amount of free surface water
- and more
Most importantly, the LithoTack operating conditions such as speed, film thickness and temperature are similar to those found on a printing press. A test takes a few minutes – so you can characterize and optimize your products quickly, ideally for R&D and QC.
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Quick waterbalance testing of offset inks with
Lithotronic III
A good ink-water balance is important for high quality printing on lithographic offset printing presses. In order to be able to predict the performance on the press, the water absorbency of lithographic inks must be tested.
The Lithotronic III is the first device to determine the water balance performance of offset inks and fount solutions with 1% accuracy. The instrument is equipped with automatic gap adjustment (known from upper class rheometers) and a ceramic dosing system. Temperature, shear-rate and fountain solution content are exactly regulated and are corresponding to the conditions on fast running printing presses. The modern software allows you a quick and safe data evaluation. Thus is testing and optimizing of your products already possible before the operation on the printing press.
International manufacturers of fountain solutions, printing inks, binders and special additives use the instrument. The Lithotronic test method has become a semi-standard test for R&D and QC in ink and fount solution formulation; it is successfully approved by the EUROCOMMIT group.
The Lithotronic III is a state-of-the-art measuring device for accurate and reproducible determination of the amount and rate of water absorption of a lithographic ink.
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The precision tack measuring instrument
AlphaTack
The new AlphaTack precision tackmeter needs only two slim rollers.
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Accurate Cloud Point Testing with
Chemotronic II (ASTM D6038)
The cloud point temperature is a characteristic value in the quality control of synthetic resins or printing inks. Deviations in cloud point can lead to sedimentation the varnish, differences in drying speed, loss of gloss and tack stability.
The cloud point is the temperature at which a resin begins to precipitate in the liquid phase.The automatic cloud point test method introduced here, has been approved by a great number of resin manufacturers worldwide as a standard method for production setting and quality control of printing ink resins.
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Standardization of varnish preparation and viscosity measurements with
Thermotronic II (ASTM D5958)
The Thermotronic II is a rheological tool to standardize varnish preparation and viscosity measurements in research and industry. In order to produce varnishes of consistent structure and quality, Novomatics has developed an automatic device for quick and reproducible preparation of test-oil-based varnishes prior to the viscosity measurements.
The objective was to eliminate the possibility of errors due to individual influences in the dissolving phase in order to improve the accuracy and reproducibility of viscosity measurements. Solvency and compatibility deviations have been minimized by the use of highly specific test oils.
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Instruments
