MOISTURE-PROOF PACKAGE

PROBLEM TO BE SOLVED: To improve sealability to enable long-term storage and long-distance transportation and also to facilitate packaging operation by tightly overlapping a self-adhesive film roll along an external face of an object. SOLUTION: Additive is added to a film of polyethylene or the like...

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Bibliographic Details
Main Author AZUMA SHUJI
Format Patent
LanguageEnglish
Published 25.05.1999
Edition6
Subjects
ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR
CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS
CONVEYING
HANDLING THIN OR FILAMENTARY MATERIAL
MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGINGARTICLES OR MATERIALS
PACKAGES
PACKAGING ELEMENTS
PACKING
PERFORMING OPERATIONS
STORING
TRANSPORTING
UNPACKING
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Summary:PROBLEM TO BE SOLVED: To improve sealability to enable long-term storage and long-distance transportation and also to facilitate packaging operation by tightly overlapping a self-adhesive film roll along an external face of an object. SOLUTION: Additive is added to a film of polyethylene or the like to lower a glass transition temperature, and film stretchability is adjusted to form a self adhesive film 8. In order to suppress gaps due to wrinkles while keeping strength, the self adhesive film 8 is fed out of a material roll comprising the film rolled with a thickness of approximately 10 to 30 μm and wound around an object 6 to be packaged. At this time, a guide roller 9 is used to prevent the wrinkles from occurring. In addition, if the object 6 has a core, the self adhesive film 8 wound around the core is pressed from above by a pressing tool, thereby improving adhesion between the core and the self adhesive film 8 for improving sealability and also preventing gaps from occurring due to vibration during transportation.
Bibliography:Application Number: JP19970302727