SEALING METHOD AND APPARATUS

PROBLEM TO BE SOLVED: To certainly seal the whole of parts to be sealed by using a pair of rolls even in such a case that an article to be sealed has thickness difference or basis wt. difference in its parts to be sealed. SOLUTION: A long article 1 to be sealed comprising at least two sheets and hav...

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Bibliographische Detailangaben
Hauptverfasser:	TERATANI HIROSHI, SAKA WATARU, ENDO MASANORI
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BANDAGES, DRESSINGS OR ABSORBENT PADS 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 HUMAN NECESSITIES HYGIENE INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES MEDICAL OR VETERINARY SCIENCE ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PERFORMING OPERATIONS PROSTHESES SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS 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:	PROBLEM TO BE SOLVED: To certainly seal the whole of parts to be sealed by using a pair of rolls even in such a case that an article to be sealed has thickness difference or basis wt. difference in its parts to be sealed. SOLUTION: A long article 1 to be sealed comprising at least two sheets and having thickness difference or basis wt. difference in its width direction is passed through the nip between a pair of rolls 2, 3 to seal the upper and lower sheets 11, 12 constituting the article to be sealed. In this sealing method, at least one roll 2 has the difference (d) in level corresponding to thickness difference or basis wt. difference in the axial length direction thereof.