Process for introducing perforations into laminates comprising silicone gels

Described is a process for introducing perforations in a laminate that comprises a silicone gel. The process includes the following steps: bringing an array of perforating elements in contact with a deformable layer of a laminate that at least includes a substrate layer, a layer comprising a silicon...

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Bibliographische Detailangaben
1. Verfasser:	Johannison, Ulf
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CUTTING CUTTING-OUT DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING,CUTTING-OUT, STAMPING-OUT OR SEVERING HAND CUTTING TOOLS PERFORATING PERFORMING OPERATIONS PUNCHING SEVERING SEVERING BY MEANS OTHER THAN CUTTING SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS STAMPING-OUT TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	Described is a process for introducing perforations in a laminate that comprises a silicone gel. The process includes the following steps: bringing an array of perforating elements in contact with a deformable layer of a laminate that at least includes a substrate layer, a layer comprising a silicone gel and a deformable layer, wherein said deformable layer covers said layer including the silicone gel; applying ultrasonic energy to said laminate in order to simultaneously introduce a plurality of perforations into said laminate, while providing deformed portions in said deformable layer, wherein said deformed portions penetrate into the plurality of perforations in said laminate; after having introduced said plurality of perforations into said laminate, keeping said deformable layer in contact with said layer including the silicone gel, such that said deformed portions remain penetrating into said plurality of perforations, for at least 12 hours.