Technologies and Techniques

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In the laboratory and technical centre, the whole process chain for a continuous coating, right from compounding in lab trails to continuous manufacturing of rolled goods in varying width (20-75 cm) involving low viscous paste and thermoplastics as well can be realised. Hence, there exists high flexibility in selecting an apt fabrication process. Both the process variation can be considered equally in contemplating a product development.

In case of product related development, upscaling the process to pilot scale is part of the project. The advantage for the end user is on one hand the gained production relevant process parameter and on the other hand sample materials, which are available as rolled goods at a suitable processable width up to 75 cm. For such a development spread coating, gravure printing, extrusion and calendaring are preferred.  

 

The technologies in our technical centre are available at any time to serve the clients. For queries regarding technological feasibility or experimental procedures, our head of the plastics technical centre, Herr Matthias Warnecke is gladly ready to respond.    

Martin Schneider

Manager Plastics Technical Centre

Alexander Kuhn

Head of Coating Technical Centre

Laboratories and Pilot Plants

Coating based on systems of low viscosity

Coating based on systems of low viscosity

Techniques

  • Coater process doctor blade/roll as direct or reverse process, air doctor, rubber blanket doctor

  • Roll coating via reverse roll coater

  • Gravure printing using gravure rolls

  • Impregnation

  • UV drying/curing

  • Lamination before and after the drying tunnel

  • Infiltration

  • Sluicing

  • Coagulation

  • Hot air drying

  • Radio frequency drying

  • IR/UV drying

  • Embossing/polishing

  • Delamination

Technological possibilities

  • Operating width: max. 750 mm

  • Speed: up to a maximum of 20 m/min

  • Explosion protection operations are possible

  • IR drying/tempering before and after the drying tunnel

  • Convection drying with three drying zones up to 260 °C

  • HF module, heating plate, IR curing units, UV drying possible

  • Stenter frame with insertion automatic (spiked/clip chain or carpet)

  • Embossing and lamination unit up to a surface temperature of 200 °C

  • Cooling before the winding unit,

  • separately driven delamination and rewind unit

Extrusion coating based on the melt

Extrusion coating based on the melt

Techniques

  • Extrusion

  • Polishing

  • Lamination

Technological possibilities

  • Gravimetric and volumetric dosings

  • Different dies (flat sheet dies, strand dies)

  • Melt pump

  • Water quenches

  • Granulator

  • Polishing calender

  • Degasification with vacuum pumps (adjustable)

  • Single-screw and twin-screw extruder

  • Laboratory compounder

Calender coating based on the melt

Calender coating based on the melt

Walzenschmelzanlage

Techniques

  • Plasticizing

  • Blending

  • Haul-off

  • Duplicating

  • Lamination

  • Coating

  • Polishing, embossing

  • Gap load measuring

Technological possibilities

  • Operating width: max. 650 mm

  • Coating support: 30 – 2,000 g/m²

  • Operating speed: up to 30 m/min

  • Melt roll temperature: up to 250 °C

  • Gap load indication

  • different lamination or embossing rolls

Hotmelt lamination

Hotmelt lamination

Techniques

  • Manufacture of duplex and triplex laminates using thermoplastic and reactive hotmelt adhesive systems

  • Dot coating

  • Continuous coating

Technological possibilities

  • combined gravure and multiple-roll application head

  • Operating width: max. 500 mm stepless

  • Temperatures: exceeding 200 °C

  • large processing viscosity

Mass preparation system

Mass preparation system

Techniques

  • Dry-blend manufacture in the heating/cooling blender for

  • Particle crushing in mills

  • Blending and homogenising in the dissolver, paste blender and 3-roll grinding mill

  • Mechanical foaming using a rotor/stator system

  • Compounding in the extruder

  • Granulation

Innovative printing systems

Innovative printing systems

Techniques

  • Thermoplastic and hydroplastic processing for

  • 3D printed electronics

  • Imprinting of 3D objects

  • Printing of systems with high viscosity

  • Inkjet printing

  • Additive manufacture with individual and standard compounds

Technical Equipment

  • Piezo-clocked printing technology

  • High-viscosity printing head

  • Multiple-die inkjet printing head

  • Five-axis control for complex 3D printed components

  • Light beam sintering NIRDot

  • Available space: max. 189 mm x 134 mm x 230 mm

  • Processing up to a maximum of 300 °C

  • Layer thickness from 0.15 µm

Laser cutting and engraving

Laser cutting and engraving

Techniques

  • Cutting

  • Structuring/engraving

Technical Equipment

  • CO2 laser, 40 Watt

  • Working surface up to 1,016 x 711 mm

  • Resolution 75 to 1,200 dpi

  • Manual focus and autofocus

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Contact

FILK Freiberg Institute gGmbH
Meißner Ring 1-5
09599 Freiberg

GERMANY

Fon: +49-(0)3731-366-0
Fax: +49-(0)3731-366-130
E-Mail: mailbox@filkfreiberg.de