Technology

Hot-melt lamination

This process obtains the maximum softness and absorbency on laminates. The main application is within high performance area of medical drapes and gowns reinforcement or within protective clothing.  This process use is more and more growing also within various technical and industrial application fields.

EXTEN technology is quite unique: based on the “Uniform Fibers Deposition” system, the process has been improved during last three years thanks to internal developments and continuous co-operations with Suppliers of raw materials, high-tech softwares and machinery.

EXTEN lamination technology consists of a uniform and steady deposition of thousands of continuous adhesive filaments onto the polyolefinic surface, leaving fully untouched the nonwoven properties. This obtains an outstanding laminate softness, drapeability and absorption.  Applying the same technology EXTEN also produces breathable laminates.

Cast Coex Process

Polymers are fed from storage silos to the extruders togheter with additives through gravimetric dosing systems. Each extruder flow enters a feed-block so that layers can be kept separated until they are co-extruded. This technology obtains films from 1 to 5 layers.

The film extruded through the flat-die, is cooled on an embossed-roll surface onto a rubber counter-roll in order to engrave the embossing design on the surface of the polyolefinic film.
The embossed film rides through the cooling rolls and reaches a cutting station where edges are removed.
The film is continuously checked by a thickness measurement system, consisting of a scanner emitting rays exploring the polyolefinic film surface. This system is interfaced to the whole production line and allows the shortest feed-back adjustment time: modifying the temperature profiles and opening or closing the flexible lip, the flow of material increase or decrease keeping  the thickness values within the specification.

A Corona treatment can be applied in order to obtain a polar surface which can be easily wetted with inks and/or adhesives.
A CCD camera in-line system continuously checkes defects (pinholes, contamination, gels, etc.), alerts operators and quality dept., keeps files records of all elements detected.

All relevant data are registered and kept in safe records by a PLC system.

Co-extrusion lamination

Co-extrusion lamination process is based on heat and pressure; chemical affinity between the polyolefinic film and the nonwovens is taken into account without application of additives, adhesives or solvents.