Co-extruders - Import export

The flexible PA/PE medium barrier composite films are suitable for classic applications such as thermoforming. Each layer performs an important function: The PA layer is the crucial factor for the mechanical strength of the packaging. Working as a barrier layer, it seals in the aroma and prevents the penetration of oxygen, thereby extending the shelf life of your product. The PE layer on the inside of the packaging functions as a sealing medium and is decisive for providing airtight seams and a proper skin sealing. It serves as a moisture barrier and, although it protects your product from drying out, it also prevents the uncontrolled absorption of moisture. The tie layer between the PA and PE layers has the task of reliably tying them together so as to prevent delamination, even at high or varying temperatures. Excellent puncture resistance and wide sealing range Co-extruded composite films by ALLVAC consist of up to 11 layers of polyamide and polyethylene

In the extrusion process the TPE pellets are poured into a hopper are heated in the barrel and turned into a melt by this heat and shear. A screw carries the melted plastic through a shaped die to produce continuous lengths of shapes with the same profile, which are then cooled by air or water. Our TPE compounds are easily extruded into single and complex profiles. They can also be co-extruded with other materials to yield a part with both rigid and soft components. They exhibit improved profile flexibility. The SEBS compounds, with their saturated intermediate blocks, are very stable against thermal degradation. On the other hand, the SBS compounds degrade if overheated or if a screw with excessively high compression ratio is used. The information below is intended as a general overview, settings may vary depending on the specific grade selected. Please CONTACT US for detailed processing information SEBS based materials Equipment Extruders used for polyolefines are best for TPE comp