Thin textured barrier films and methods of forming the same

Embossed textured films are made by feeding a thin thermoplastic polymer barrier film through the nip of a bonding roll assembly having a patterned roll and an anvil roll rotating at different circumferential speeds which differ by 5 % to 200 %. The bond patterned is imparted to the film as well as...

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Bibliographische Detailangaben
Hauptverfasser:	MARK BRUCE MAJORS, BILLY RAY JONES JR
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	Embossed textured films are made by feeding a thin thermoplastic polymer barrier film through the nip of a bonding roll assembly having a patterned roll and an anvil roll rotating at different circumferential speeds which differ by 5 % to 200 %. The bond patterned is imparted to the film as well as additional texture due to the differential speeds of the rollers thereby creating an embossed, textured barrier film having improved hand and a hydrohead in excess of about 30 mbar.