From idea to transfer
Functionalisation/Chemical analytics
Technical Equipment
The STFI provides the whole development process: starting from developing formulations for functional dispersions and thermoplastics and their characterization to small-scale samples and the up-scaling to small-quantity manufacturing on semi-industrial pilot equipment.
An overview of our machinery equipment for surface functionalization and composite formation can be found here.
Any questions?
Your contact
Dr.-Ing.
Frank Siegel
Manager Functionalisation/Chem. analytics
Phone: +49 371 5274-265
Dispersing & compounding
- noris-ZSC 25, Noris Plastic GmbH & Co. KG
Screw length Screw diameter Screw speed Screw torque (single) Heating / cooling zones Dosing Throughput Strand cooling by water bath, drying by blower and strand pelletizer Venting by vacuum pump possible | (L/D) 36 25 mm max. 800 rpm 82 Nm 8 (max. 300 °C) 3 x solid, 1 x liquid 1 up to 40 kg/h |
- Incorporation of additives
- Reduction of particle sizes, precise, narrow particle size distribution
- Homogenisation of dispersions
Available facilities:
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Material characterisation
- MCR 502, Anton Paar GmbH, Graz, Austria
Measurement of rheological properties (shear viscosity, complex viscosity, yield point, loss modulus, storage modulus of Thermoplastics Dispersions and suspensions In-Situ UV-LED curing possible | up to 450 °C up to 210 °C |
- BP100, Krüss GmbH, Hamburg
Determination of the dynamic surface tension Surface age (bubble age) Temperature controlled Characterisation and optimisation of liquids, inks, finishing liquors regarding to dynamic processes like spraying, coating and printing | from 10 - 100 mN/m 5 – 200.000 ms from -10 °C up to 130 °C |
- DSC-60, SHIMADZU CORPORATION, Kyoto, JP
Temperature Heating rate Heat flow range | up to 600 °C 0 – 99 K/min ± 40µW |
- Particle Size Analyser PSA 1190 LD, Anton Paar GmbH, Graz, Austria
Determination of particle sizes by using multi-laser technology
Measuring range of wet dispersed samples Measuring range of dry dispersed samples | 0,04 µm to 2500 µm 0,1 µm to 2500 µm |
Optional use of a small volume unit for minimal volumes (e.g. costly samples) |
Coating & finishing
- Werner Mathis AG, Switzerland
Working width Speed Squeezing pressure | max. 500 mm 0,1 – 10 m/min 0,5 – 6 bar |
Impregnation in bath and nip Fluids: water-based, cold pad dying |
BA 6792
- Werner Mathis AG, Switzerland
Parameters: Working width Speed Temperature | max. 500 mm 0,1 – 5 m/min max. 230 °C |
Application units: Padding unit Knife coating unit (air, roll and blanket), direct and transfer Wet- and dry lamination unit (substrate thickness) Reverse-Roll-Coating unit Slot die unit (Bead-Coating-, Curtain-Coating-, Web-Tension-Mode) Experimental set-up for digital printing and coating | max. 30 mm |
Additional: Inline Corona pre-treatment Spraying unit | max. 1,6 kW |
Drying and curing | > 3000 nm max. 230°C 365 und 395 nm |
Fluids and pastes: Water-based dispersions, foames, sol-gel systems, rubber, silicones, plastisols, high-solid systems, UV-curable systems |
- Stentex GmbH, Gera
Parameters: Working width Working speed Temperature Dryer length Heating zones | 0,5 – 2 m 2,4 – 40 m/min 25 – 250 °C 6 m 4 |
Application unit: Padding unit |
- Lab scale dyeing unit type JFO, Werner Mathis AG, Switzerland
Sample weight High temperature treatment pre-/posttreatments, dyeing | up to 1,2 kg |
Application methods | Jet dyeing Drum/barrel dyeing cross-wound bobbin dyeing Small mug dyeing |
- Laborjigger, Ernst Benz AG, Switzerland
Web width Heated bath Speed Automated passages | max. 500 mm max. 95 °C 0,5 – 11 m/min |
Lamination & joining
- Anger Electronic GmbH, Austria
- Calendaring by two heated rolls: Teflon roller / rubber roller
Width Temperature Speed Gap adjustment Pressure | max. 600 mm max. 220 °C max. 5 m/min 0 – 50 mm max. 6 bar |
- MPBL 800 CV, Lacom Vertriebs GmbH
Parameters: Application width Application weight Application speed Viscosity Temperature Full cover, dot pattern coating | max. 800 mm 5 – 350 g/m² 0,5 – 20 m/min 2000 – 80000 mPas max. 230 °C |
Components: flat roller, engraved rollers (CP96, CP103, truncated pyramid) Inline corona pre-treatment Additional rewinder for transfer coatings | max. 1,6 kW |
- Thermofix® LP, Schott & Meissner Maschinen- und Anlagenbau GmbH, Blaufelden
Parameters: Width Speed Gap adjustment Temperature Pressure (calendering roller) | up to 800 mm 0,1 – 20 m/min 0 – 140 mm 25 – 235 °C 0 – 7 bar |
Components: Powder scatterer with different rollers (fine, medium, coarse) for hotmelt adhesive powders and fibres Processing of thermoplastic hotmelt adhesives (webs, nets, nonwovens, powder) |
Functional Printing
- Fabrikat CVM GmbH, Neukirchen
Application units for functional printings:
- Filament-Extruder for application of thermoplastic Filaments (Fused Layer Modeling)
- Application head with needle valve for application of thermoplastic polymers (powders, granules)
- Dispensing for application of different coating pastes and inks (water-based dispersions, plastisols, high-solid systems, UV-curable systems)
Parameters: Print bed size Printing height Temperatures UV-LED – Spot Wavelength | 700 mm x 1200 mm max. 130 mm max. 256°C or 220°C 365 nm, 385nm, 400nm |
- aQ-1212R, druckprozess GmbH & Co. KG, Eisenach
- printhead: MH5420 (Gen5), Ricoh Printing Systems America Inc., USA
Print bed size CMYK water-based Pigment ink (Diamontex P) 2 additional printheads for functional inks Inline NIR-drying Lambda Physics (NIR-Powerheat PH MF U 5-1, Lambda Technology GmbH, Grafing) | 1200 x 1200 mm² up to 2700 W |
Laser processing
Fields of application
MeInPak – Development of sustainable, multi-layer and reprocessable PPE for a "reusable infection control package"
The aim of this joint project is the development of a multilayer material composite consisting of at least one filtering functional layer (meltblown nonwoven, foam coating or nanomembrane) in partial combination with each other or in combination with a textile. The developed composites are to be used to manufacture individually adapted protective masks and gowns that can be washed several times and comply with the PPE Ordinance and also dual use as a medical device.
Contact
Dr.-Ing. Frank Siegel
+49 371 5274-265
Email
Further projects
CarboCopTex
The objectives of the project are the development of conductive carbon black (carbon) and copper (copper) based formulations, which enable the generation of electrically conductive, dissipative and sensory structures on textile substrates and represent a significantly more cost-effective alternative to silver-based systems. In addition, the focus is on the development of single-layer and multilayer structures, taking into account textile-ink interaction and film formation between copper and carbon black layers.
Contact
Tobias Richter, M. Sc
+49 371 5274-285
Email
Completed Projects
Title | Duration | Editor |
---|---|---|
NanoHyb – Hybrid Textile Structures | 07/2020–02/2023 | Dr. M. Gültner |
Schutzkleidungsmaterial für | 12/2019–11/2022 | Dr. M. Gültner |
10/2020–07/2022 | Dr. R. Lungwitz | |
10/2019–03/2022 | T. Richter | |
UV-Laserbelichtung | 10/2019–03/2022 | D. Wenzel |