Package making – Progressively seamed cover web or web folds – With closing of web between package units
Patent
1993-02-12
1994-08-16
Coan, James F.
Package making
Progressively seamed cover web or web folds
With closing of web between package units
533745, 53450, B65B 906, B65B 4910
Patent
active
053375424
ABSTRACT:
A thermal shrink film is continuously pulled out and is shaped into a tubular form. Individual items to be wrapped are fed into the tubular film sequentially and overlapping marginal portions of the tubular film extending lengthwise are sealed. The tubular film is sealed and cut transversely of each of the items at the front end thereof and the tubular film is deformed inwardly by applying pressure thereto to decrease its internal volume. Then the tubular film is sealed and cut transversely of each item at the rear end thereof to form an intermediate package. The film of the intermediate package is shrunk by heating to thus shrink-wrap the item.
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Coan James F.
Omori Machinery Co., Ltd.
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