JP2008018992A - Gusset bag with tap - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a gusset bag with a tap which can be easily installed when manufacturing a bag and has a portion to be a starting point for folding when forming a rectangular shaped bottom surface at a predetermined position. <P>SOLUTION: The gusset bag 1 with the tap is composed of a plane front member and a back member formed of a laminated material having at least a substrate layer and a sealant layer, and two pieces of side members formed of the laminated materials of the same constitution gusset-folded inward through fold lines 16, 17. The gusset bag has a top seal part 5 equipped with the tap 4 composed of a cap 3 and a spout 2 on the opening side of the gusset bag having an opening side at one side, having a bottom seal part 6 at the opposite side, and having side seal parts 7, 8, 9 and 10 at the remaining four sides. Predetermined shaped cut-off parts 12, 13, 14 and 15 which are starting points for being folded when forming a rectangular shaped bottom surface are formed at the peripheral edge of the bottom seal part side of each side seal part and at the same position of the height from the bottom seal part 6. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a gusseted bag with a stopper for packaging contents such as various jelly drinks.

Packing bags with plugs filled and sealed with contents are usually displayed and sold in a stand-alone state at stores, and used in various forms to obtain good self-supporting packaging bags. Is used. In recent years, many gusseted bags with stoppers have been used as packaging bags for various jelly beverages. A gusseted bag with a cap that has been devised to improve its independence and a manufacturing method thereof have been proposed (for example, see Patent Document 1).
JP 2000-185740 A

  However, the proposed gusseted bag with a cap is manufactured by a manufacturing method in which a heat ruled line is put in a predetermined position before bag making in order to make the bottom surface easy to have a square shape. And the manufacturing process is complicated.

  An object of the present invention is to provide a gusseted bag with a stopper that can be easily provided at the time of bag making and has a portion that becomes a starting point of bending when forming a square bottom surface at a predetermined position. It is in.

  The invention according to claim 1 of the present invention includes at least a planar front member and a rear member made of a laminated material having a base material layer and a sealant layer, and a laminated material having the same configuration that is gusseted inside through a fold. From the cap and spout on the opening side of the gusset bag having an opening side on one side, a bottom seal part on the opposite side, and a side seal part on the other four sides. A gusseted bag with a cap provided with a top seal portion provided with a plug and having a square shape at the periphery of each side seal portion on the bottom seal portion side and at the same height from the bottom seal portion A gusseted bag with a cap, which is provided with a cut-out portion having a predetermined shape that becomes a starting point of bending when forming a bottom surface of the shape.

  The gusseted bag with a cap of the present invention is composed of at least a planar front member and a rear member made of a laminated material having a base material layer and a sealant layer, and a laminated material having the same configuration that is gusseted inside through a fold. A gusset bag having an opening side on one side, a bottom seal portion on the opposite side, and a side seal portion on the other side, and a cap and a spout on the opening side of the gusset bag. A gusseted bag with a cap that is provided with a top seal part that has a spigot, and has a square shape at the periphery of each side seal part on the bottom seal part side and at the same height from the bottom seal part Since the cut-off part of a predetermined shape is provided as a starting point for folding when forming the bottom surface of the bag, the cut-off part can be easily provided at the time of bag making, and further, the bottom part can be folded by folding from the cut-off part. Can be formed into a rectangular shape, resulting excellent self-supporting.

The gusseted bag with a stopper of the present invention will be described in detail below along the embodiment. FIG. 3 is a side sectional view showing an embodiment of a laminated material used for the gusseted bag with a stopper of the present invention. The laminated material (20) is composed of a base material layer (21) and an adhesive layer in order in the thickness direction. (25), a gas barrier layer (22), an adhesive layer (26), an intermediate film layer (23), an adhesive layer (27), and a sealant layer (24) are laminated.

  In addition, you may laminate | stack a printing layer between the said base material layer (21) and an adhesive bond layer (25).

  A biaxially stretched polypropylene film, a biaxially stretched nylon film, a biaxially stretched polyester film, or the like is used for the base material layer (21).

  The gas barrier layer (22) is laminated in order to improve the gas barrier property of the laminated material. For example, an aluminum foil, an ethylene / vinyl alcohol film, an acrylic film, a polyvinyl alcohol film, an aluminum vapor deposited film, silicon oxide or oxidized A barrier laminated film in which vapor-deposited thin film layers such as aluminum are laminated is mainly used.

  The intermediate film layer (23) is laminated to improve various strengths of the laminated material. For example, a biaxially stretched nylon film, an unstretched nylon film, a biaxially stretched polyester film, etc. are mainly used. .

  The sealant layer (24) is made of a polyolefin resin or a polyolefin resin film. Examples of the polyolefin resin to be used include a low density polyethylene resin, a linear low density polyethylene resin, a medium density polyethylene resin, and a high density resin. Density polyethylene resin, ethylene resin such as ethylene / α-olefin copolymer resin, homopolypropylene resin, propylene / ethylene random copolymer, propylene / ethylene block copolymer, polypropylene / α-olefin copolymer, etc. Propylene resins and the like can be selected, and modified polyolefin resins obtained by acid-modifying these olefin resins by graft polymerization or the like can also be used. The above-mentioned polyolefin resin may be a single substance or a blend of two or more kinds. Lamination is performed by a known melt extrusion method or dry lamination method.

As the adhesive used for the adhesive layer (25, 26, 27), a polyurethane-based adhesive is generally used. Usually, a two-component type is used in which a main component having a hydroxyl group and a curing agent having an isocyanate group are mixed in two components. The coating method is also applied by a known method such as a gravure coating method. The coating amount is preferably 1 to 5 g / m ² (dry state).

Fig. 1 (a) is a plan view from the front showing an embodiment of the gusseted bag with a stopper of the present invention, (b) is a plan view from the back of the gusseted bag with a stopper of (a), The gusseted bag (1) with a cap is a mouth composed of a spout (2) for filling and pouring the contents in the top seal part (5) provided at the upper end and a cap (3) for sealing. It has a stopper (4) and has a bottom seal part (6) on the opposite side of the top seal part (5). The side seals (7, 8) are provided on both sides, and as shown in FIG. 1 (b), the side seals (9, 10) are provided on both sides when viewed from the back. The bag has folds (16, 17) of side members that are folded in gussets on both sides. The sealing portion (7, 8, 9, 10), at the periphery of the bottom sealing portion (6) side, and cut off height from the bottom seal part (6) of a predetermined shape at the position of the same h ₁ respectively Parts (12, 13, 14, 15) are provided.

Since the cut-off portions (12, 13, 14, 15) are provided at positions facing each other, they have a role as a starting point of bending when forming a square-shaped bottom surface. By having the cut-off portion, the bottom surface can be easily formed into a square shape. The shape is not particularly limited as long as it is a shape that is likely to be a starting point of bending, and includes a semicircular shape, a semi-elliptical shape, and a triangular shape. The top seal portion (5) has a part of the side seal portion (7) and a portion of the side seal portion (9), a portion of the side seal portion (8) and a portion of the side seal portion (10). It seals in the state which provided the notch part (11a, 11b) at both ends on either side so that it might adhere | attach.

  FIG. 2 (a) is a perspective view of the gusseted bag with a stopper of the present invention formed in a square shape from the front, with the spout (2) on the top seal portion (5) at the upper end. And a cap (4) consisting of a cap (3), which is bent from a cut-off portion (12, 13, 14, 15, but 14 is not shown) to form a square-shaped bottom surface. (B) is an explanatory diagram of the bottom shape of the gusseted bag with a cap in the state of (a), and the four corners are part of each cut-off portion (12, 13, 14, 15). Side (12a, 13a, 14a, 15a), and further, a side that is a part below each cut-off part (12, 13, 14, 15) of the side seal part (7, 8, 9, 10) It has a seal part (7a, 8a, 9a, 10a) and a bottom seal part (6) There.

  In the gusseted bag with a cap of the present invention, the cut-off portions provided at the four side seal portions are provided at the positions described above, and the portion having the cut-off portion of the side seal portion has a small repulsive force when bent. Thus, since it becomes the starting point of folding, after filling and sealing the contents, the bag can be folded from its cut-off portion to easily form the bottom surface into a square shape, thereby providing excellent self-supporting characteristics.

(A) is a top view from the front which shows one Embodiment of the gusset bag with a stopper of this invention, (b) is a top view from the back of the gusset bag with a stopper of (a). (A) is a perspective view of the state which formed the bottom face of the gusset bag with a stopper of this invention in the square shape, (b) is explanatory drawing of the bottom face shape of the gusset bag with a stopper of (a). It is a sectional side view which shows one Embodiment of the laminated material used for the gusset bag with a stopper of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Gusset bag with a plug 2 ... Spout 3 ... Cap 4 ... Plug 5 ... Top seal part 6 ... Bottom seal part 7, 8, 9, 10 ... Side seal part 7a, 8a, 9a, 10a ... Side seal part Part 11a, 11b ... Notch part 12, 13, 14, 15 ... Cut off part 12a, 13a, 14a, 15a ... Part 16 of cut part 16 ... Fold 20 ... Laminate material 21 ... Base material layer 22 ... Gas barrier layer 23 ... Intermediate film layer 24 ... Sealant layer 25, 26, 27 ... Adhesive layer

Claims (1)

  It consists of at least a planar front member and a rear member made of a laminated material having a base material layer and a sealant layer, and two side members made of a laminated material of the same configuration that are gusseted inside through a fold, There is a top seal with a cap and spout on the open side of the gusset bag that has an open side on one side, a bottom seal on the other side, and a side seal on the other 4 sides. A gusseted bag with a cap that is formed at the bottom seal part side of each side seal part, and the origin of bending when forming a square bottom surface at the same height from the bottom seal part A gusset bag with a spigot, characterized in that a cut-out portion having a predetermined shape is provided.

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