The ornamental design for a packagingbag, as shown and described.
1.-2. Bag for packaging
1.1 : Perspective
1.2 : Front
1.3 : Back
1.4 : Top
1.5 : Bottom
1.6 : Left
1.7 : Right
2.1 : Perspective
2.2 : Front
2.3 : Back
2.4 : Top
2.5 : Bottom
2.6 : Left
2.7 : Right
Design 1 and 2 are packaging bags for jelly, paste or liquid contents; this packaging bag is formed by heat-sealing a part of the resin film; it can be opened at least half of its width by tearing the heat seal in the width direction from the upper notch; the parallel thin lines and the radial thin lines in the representation represent contours only and do not illustrate an ornamentation or decoration on the surface of the product.