VERFAHREN UND VORRICHTUNG ZUM MIKROPERFORIEREN UND MIKROPRÄGEN EINER POLYMER BAHN

A continuous, multi-phase process for microaperturing and microembossing a substantially continuous web of substantially planar polymeric film to conform with the image of multiple forming structures, each having a patterned forming surface with a multiplicity of fine-scale apertures and an opposed...

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Bibliographische Detailangaben
Hauptverfasser:	PHILLIPS, DONNA, SUE, CINCINNATI, OH 45247, US, DOBRIN, GEORGE, CHRISTOPHER, CINCINNATI, OH 45211, US
Format:	Patent
Sprache:	ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BANDAGES, DRESSINGS OR ABSORBENT PADS CUTTING CUTTING-OUT DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION HAND CUTTING TOOLS HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PERFORATING PERFORMING OPERATIONS PROSTHESES 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 TREATMENT OR PROTECTION OF EYES OR EARS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A continuous, multi-phase process for microaperturing and microembossing a substantially continuous web of substantially planar polymeric film to conform with the image of multiple forming structures, each having a patterned forming surface with a multiplicity of fine-scale apertures and an opposed surface. Each forming structure is open from the apertures in the forming surface to its opposed surface. The web of film has an indefinite length, a first surface, a second surface and a thickness. The thickness is the distance between the first surface and the second surface. The process includes at least two sequential forming phases, one of which involves aperturing of the web of film to coincide with fine-scale apertures in the first forming structure and another of which involves conformance of the web of film to the profile of the fine-scale apertures in the second forming structure.