Patent ID: 8091996
Filing Date: 2012-01-10
Classification: B41J

Abstract:
1. A method for recycling a fluid container, the container having a chamber for containing fluid, a supply port for supplying the fluid contained in the chamber to an exterior of the chamber, and a hole for introducing the fluid into the chamber, the hole being covered by a cover film, the method comprising: forming an opening in an area of the cover film that covers the hole; refilling the chamber of a used fluid container with the fluid through the opening and the hole; preparing a laminated film formed by laminating a plurality of films including a first film and a second film, wherein the second film is not meltable at a heating temperature and exhibits an improved heat resistance compared to the first film, the first film forming one of outermost layers of the laminated film, the second film forming the other of the outermost layers; after refilling the chamber with the fluid through the opening and the hole, placing the laminated film on the cover film with the first film facing the cover film in such a manner that the laminated film covers the opening and the hole; and welding at least an annular area of the laminated film extending along a circumference of the hole to the cover film by heating the laminated film from the side a second film side to melt the first film so that the laminated film sears the opening and the hole.