Method and apparatus for embossing

In the process of embossing film by continuously passing the film through a nip formed by cooperating pattern and backup rolls, the improvement of passing the embossed pattern while in registration with the pattern roll through a second nip to improve the pattern detail. The apparatus includes a sec...

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Bibliographische Detailangaben
Hauptverfasser:	DANNHEIM, WALTER ROBERT, MCNABOE, JOHN AUGUST
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CUTTING CUTTING-OUT DECORATIVE ARTS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HAND CUTTING TOOLS MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FORSCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNERANALOGOUS TO PAPER MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD ORMATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER 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 TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUSTO PAPER
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Beschreibung
Zusammenfassung:	In the process of embossing film by continuously passing the film through a nip formed by cooperating pattern and backup rolls, the improvement of passing the embossed pattern while in registration with the pattern roll through a second nip to improve the pattern detail. The apparatus includes a second backup roll in pressurized contact with the pattern roll forming the second nip. The surface configuration of the rolls may be such as to locally perforate the film within the pattern.