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Application filed by Shui-Mu WangfiledCriticalShui-Mu Wang
Priority to TW087112381ApriorityCriticalpatent/TW376361B/en
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Publication of TW376361BpublicationCriticalpatent/TW376361B/en
The invention relates to a method for producing a U-shape airtight bag and a structure thereof. The method comprises printing a textural pattern on a longitudinal flat bottom layer made of a thermoplastic material, pressing a film made of another thermoplastic material into a cover layer by a shaping mold, melt sealing the periphery of the cover layer on the flat bottom layer by a heater, inflating the airtight bag with air through an air hole, sealing the airbag by the heater after the airbag has been filled with air, and bending and shaping the airtight bag by a shaping mold thereby integrally producing a U-shape airtight bag.
TW087112381A1998-07-271998-07-27Method for producing U-shape airtight bag and a structure thereof
TW376361B
(en)