Others PCE 1600

Brand: PROMEA
Cast Extrusion Coating Line
High-Quality Composite Films

The basic concept of extrusion coating technology is to produce and convert a plastic film in one operation step. This technology does not use any pollutant solvents and adhesives in compliance with many strict pollution control regulations of the food-processing and hygiene industry.


Process
Generally, the process of extrusion coating of different laminates (composites) with a film of thermoplastic material is the following:


• In the extruder, the thermoplastic polymer (generally PE or PP) is processed into a homogeneous melt and formed into a melt web in the die head;

• The material web (substrate) is fed into the nip between the laminator roll and pressure roll;

• The melt web applied to the substrate sticks as a film to the surface of the substrate. As a result of the contact pressure operated by the pressure roll and the temperature of the melt, the plastic film and the substrate are completely adhered to each other.


Depending on the structures being combined (co-extrusion), certain coupling agents may be required. The coated structure is then cooled down by the constant temperature rolls and transported via the thickness measuring and a post cooling unit to the winding system.

Specifications

• (Die width is 2000 mm) , coextruded ; 3 layers (A+B+A)
• Micro embossing Chill Roll.
• Feeding systems with individual pneumatic loaders
• Gravimetric dosing groups for “A” extruder 3 components
• Gravimetric dosing groups for “B” extruder 5 components
• Extruder with automatic screen changer and customized screen view according to material to convert
• Gear melt pump between extruder and die
• Co-extrusion feedblocks for online variation of layer ratio and layer distribution
• Die-heads of latest generation
• Chill rolls where extruded melt is transformed into a film and quickly cooled down
• Gauge measurement equipment with β- rays for manual or automatic adjustment
• Film oscillation devices of our design
• Corona treatment units
• In-line slitting equipment
• Surface, centre/surface and gap automatic winding unit series PW for top quality finished reels with no defects and very strict reel geometry tolerances
• Edge trim recycling system with recovery of film trims by feed hopper or lateral extruder
Automatic shaft and reel handling units

Raw Materials & Finished Product Applications
High quality composite films are obtained by coating thermoplastic materials with substrates such as nonwovens, plastic films, textiles, paper, aluminium foil, etc. These extrusion coated products find a broad application in the following industries:


• Hygiene and health care (cloth-like backsheet film for baby and adult diapers, incontinence garments, bandages, disposable drapes, gowns, etc.)

• Building (roofing, house wrapping, insulation, wipe-clean wallpapers)

• Packaging (beverage packs, foodstuffs, etc.)