Laminating calenders |
Laminating calenders
for thermoplastics/melting glues
Klieverik has developed a complete range of laminating systems, which are able to manufacture products meeting virtually any desired specification. These laminating systems are suited for combining different substrates with the use of thermoplastic adhesives or reactive polyurethane adhesives. |
 |
Laminating technology with thermoplastic adhesives
The laminating process by means of a belt laminator allows two, three or even more substrates to be combined under the influence of temperature, pressure and dwell time. The adhesion between the substrates is obtained by the use of thermoplastic glues, such as films, webs, powders or melting fibres. The Klieverik systems are ideally suited for the production of materials used for:
Footwear and clothing.
Medical garments.
Disposables and dressings.
Domestic applications and wall coverings.
Car upholstery.
Industrial applications such as acoustic and thermal insulation laminates.
Almost any combination can be done. A Klieverik belt laminator is compatible with most glue application units. Highly recommended are the Powder Scattering Device and the use of numerous available thermoplastic powders.
Advantages laminating calenders
Wide range of process temperatures, up to 240°C.
High uniformity of the temperature across the full width of the heating cylinder.
High quality, exactly reproducible products due to accurate control of speed, temperature, blanket guide, tension and pressure.
Wide range of auxiliary equipment.
Technical specifications
Working widths up to 6000 mm.
Drum diameters from 500 - 1800 mm.
Speeds up to 100 m/min.
Temperature: 0 - 240°C.
Drum heated by electrical elements or by external boiler.
Klieverik laminating machines can be delivered as a stand alone unit but also as an integrated part of a laminating line. We offer a wide variety of auxiliary equipment for unwinding and winding devices, web guiding, etc. This means that we can offer you customized solutions for the treatment of your products. |
Ecosafe™ calender |
Ecosafe™ laminating system
Klieverik has, in co-operation with leading suppliers in the automotive industry, developed the Ecosafe™. An eco-friendly and versatile system which can be used to laminate any type of substrate. It is also an economically attractive alternative to, for instance flame bonding systems. The Ecosafe™ calender and technology have been patented worldwide.
|
 |
Ecosafe™ technology
The Ecosafe is a laminating concept that brings together a number of unique performance properties. This processor can operate in-line with just any thermoplastic glue application unit. Recommended is the use of a powder scattering device in combination with thermoplastic glues. However, other glue application units, such as spray coating, screen coating and other units, can also be installed in front of the Ecosafe™.
The speed of the Ecosafe™ can get as high as 100 metres per minute. This velocity can be reached because the machine only heats the glue and the surface of the 2nd substrate, instead of the whole package of materials.
|
|
 Another important technological advantage is that the glue can be applied onto or into the substrate. This is a result of the possibility to regulate the temperature of both substrates separately in combination with the pressure. This implies that with optimal (minimal) glue consumption, a maximum bonding can be reached and that the hand of the laminated materials can be controlled. Also rigid materials, such as expanded polyurethane, hardboard and even non-flexible panels can be processed on the Ecosafe™ without any problem.
Advantages Ecosafe™
Environmental friendly system.
Low energy consumption.
Very high processing speeds possible (even with polyester substrates).
A large variety of substrates can be processed. Also sensitive, sheet material and
rigid materials can be processed on the Ecosafe™.
Cost savings. Ecosafe™ produces laminates of which the cost price is lower to that of
products made on other systems.
Technical specifications
Working widths up to 6000 mm.
The heating drum has a special coating.
Forced internal oil circulation systems for a very uniform temperature.
Mechanical speeds up to 100 m/min.
Temperature: 0 - 240°C.
The Ecosafe™ can be delivered as a stand alone unit or as an integrated part of a laminating line. For more technical specifications of the Ecosafe™, please contact Klieverik.
|
Double drum calender |
 Double drum laminating calender
Most products can be laminated by means of a belt laminating machine with a single drum. However, in case that heat should be applied to both sides of the substrate Klieverik offers the double drum calender. By means of a double drum laminating machine 3 or 4 products can be combined in one pass.
Advantages
Both sides of the product can be heated.
Temperature of heating drums can be
adjusted independently.
Regular production speed 25-50 m/min.
Technical specifications
Working widths up to 6000 mm.
Mechanical speeds up to 100 m/min.
Temperature: 0 - 240°C.
Drum diameter: 760 mm.
Pressure roller inside the belt/outside of the belt
Both cylinders are executed with special coating.
Special silicone coating on the endless Nomex belt.
Forced internal oil circulation system in upper heating drum for a very uniform
temperature. Possible under all circumstances
|
Glue applications |
 Glue application by means of Powder Scattering Device
Powder scattering is the most flexible way and cost effective way of applying thermoplastic adhesives. The Powder Scattering Device developed and supplied by Klieverik ensures a regular scattering of the powder, which gives a good surface equality in width as well as in length. |
Powder Scattering Device technology
The operation principle of the PSD is based on the natural flow properties of the powder. The powder in the reservoir is mechanically dosed into the needle belt by means of a squeegee. As the scattering roller rotates, an opposing brush dislodges the powder onto a reciprocating sieve, allowing it to fall onto one of the substrates moving underneath. The operation mentioned above ensures a uniform distribution of the powder across the substrate.
Advantages Klieverik Powder Scattering Device
Wide range of powder glues can be applied, such as PE, EVA, PES, PU, PA, etc.
Fast and easy change-over of powder type.
Desired coating weight synchronised with speed of the production line.
Powder coating weight can easily be set in grams/m˛ at a very limited (< 1gr/m˛) to
very high quantities (> 200 gr/m˛).
User friendly operating system.
Good accessibility and easy cleaning.
Cost effective. No loss of superfluous powder.
Environmental friendly. Clean dry process and less energy intensive. No solvents.
Minimal maintenance and less wearing since moving parts are separated and
well-protected from dust.
Heavy-duty construction.
Technical specifications of standard Powder Scattering Device
Working width up to 6 meters.
Powder size: 80 - 400 µ.
Contents powder container: 140 l./mą.
Maximum powder coating output: 2000 gr./min per meter width.
Various extensions such as frame, infrared, conveyor belt and automatic supply unit. |
 |
