A method for sealing an opening formed in a cover film welded to a fluid retainer at a position corresponding to a covered area of an ink inlet hole. A sealing member, which seals the opening, is a laminated film including a first film and a second film. The method includes preparing the laminated film,...http://www.google.com.tw/patents/US8091996?utm_source=gb-gplus-share專利 US8091996 - Fluid container, recycling method of fluid container, and sealing method of fluid container