Kroenert manufactures state-of-the-art machines and production lines for coatings of web-like materials such as paper, foil (aluminium, copper, etc.) and film (PE, PP, PET, etc.), and their laminates.
Our range of coating stations enables a wide variety of compounds, such as wax, paraffin, hot-melts, acrylic adhesives and epoxy resins, to be coated.
Our high-performance unwinds and rewinds are available as single winders (reel change at machine stop) as well as turret winders (reel change at production speed).
Coating compounds for paper, foils and films
We have many years of experience in the refining of paper, foils and films (and combinations of these materials). We provide the most appropriate solution for your application, regardless of whether the coating compound is applied in aqueous, solvent-containing or 100% solid form.
Coated paper, foils and films are used in the manufacture of self-adhesive labels, adhesive tape, graphic foils, flexible packaging for food and drugs, safety foils and membrane foils, as well as many other applications.
The coating system is the central component of a coating machine. Kroenert has decades of experience in this area, and the quality of its coating systems reflects this expertise. With Kroenert coating systems it is possible to achieve exact roll speeds, thereby ensuring the highest processing precision and quality. In addition, they can be easily integrated as independent units in third-party machines.
There are three model ranges available (400, 600 and 800), which can be used to realise all common production projects. Kroenert coating systems are for the application of:
- PS hotmelts
- UV-cured acrylate adhesives
- Epoxy resins
- Highly viscous aqueous or solvent-containing adhesives
- Prepolymer compounds
- Chemically cured laminating adhesives
Extrusion coating and lamination machines
We have extensive know-how in the extrusion coating and lamination of paper, foils and films. Our extrusion coating and lamination machines use polyethylene and polypropylene. We can provide the optimum machine for your application, regardless of the kind of extrusion coating or lamination that is to be performed.
Kroenert has developed laminating units to cover a multitude of purposes. These laminating units can be used to laminate plastic films, paper, cardboard, metal foils, fleece materials, interlaced yarns, and textiles.
These laminated products are used in food and luxury foodstuff packaging, pharmaceutical packaging, medical disposables, household and cleaning products, decorative packaging and electronic products, to name just a few.
Unwinding and rewinding stations
Kroenert also develops and manufactures unwinding and rewinding stations that are ideally suited for integration into a complete production line. These stations can be used to wind films, foils, paper and special materials. These unwinding and rewinding systems can also be integrated into third-party machines as independent units.
Kroenert has developed special winders that can process special materials and increase the productivity of your processes. For example, these special unwinding and rewinding stations are for unwinding thin aluminium (less than 6µm); butt-splice unwinding without a web magazine; rewinding of adhesive tape without air trappings and telescoping; and rewinding without tube preparation.
Drying and humidification systems
Dryers are core components of the complete production line, while increasingly higher machine speeds make it necessary to adapt the steam humidification in coating machines to regulate the humidity and correct the horizontal position of paper materials. Years of experience in this area are required to be able to offer and integrate sophisticated and reliable technological solutions.
DRYTEC, a subsidiary company of the Kroenert Group, supplies drying and humidification systems to meet the needs of the packaging industry.
Printing units for flexo printing
Kroenert develops and manufactures printing units for flexo printing that are specially adapted to the requirements of converters for label production. These printing units are most often used to print logos on silicone paper. Features include:
- Working widths between 600mm and 2,200mm
- Speeds of up to 1,000m/min
- Quick exchange of printing sleeve in the machine
- Available as double printing unit