JP5828354B2 - bag - Google Patents

Description

  The present invention relates to a box-shaped container suitable as a container for powdery substances such as powder detergents.

  As a container used for granules or powdery powder substances such as powder detergents, a box-shaped container made of a paperboard material such as a paperboard or a plastic sheet is used (Patent Document 1). This box-shaped container is usually discarded after the contents are used.

  On the other hand, from the viewpoint of resource saving, it is known that the box-shaped container is repeatedly used by filling the refill bag with the contents and putting the bag into the box-shaped container. To make the refill bag easier to open, the cardboard is made of cardboard, and the peeling claw that protrudes outward is provided on the upper side of the side, and a peeling guide tape is provided on the part corresponding to the peeling claw. In order to fold the bag, it has been proposed to provide a folding line at the bottom of the bag (Patent Document 2).

Japanese Utility Model Publication No. 6-1221 Japanese Utility Model Publication No. 6-32364

  However, using a cardboard as a refill bag, processing the fold line on the bag body, and providing a tearing claw for tearing and a guide tape for peeling increase the bag manufacturing cost. . Then, this invention makes the refill bag accommodated in a box-shaped container the product made from a film, and it aims at improving the usability of a refill bag with a simpler structure.

  In response to the above-mentioned problems, the present inventor forms a bag that is stored in a box-shaped container as it is as a refill bag for the contents using a film, and forms the bag into an inverted taper type as described above. It was found that the purpose of can be achieved.

  That is, the present invention is a film bag filled with a powdery substance, a box-shaped container body containing the bag, a box-shaped container provided with a lid covering the opening of the container body, A box-shaped container having a gusset at the bottom or side, an upper part of a flat bag type, a reverse taper type with a narrow net width of the bag at the bottom part relative to the upper end part, and the bag having a straight tearing property in the width direction I will provide a.

  According to the box-shaped container of the present invention, since the bag accommodated in the container main body can be manufactured from a single film, it can be obtained at a lower cost than the cardboard bag.

  In addition, since the bag is formed of a film, the tearability in the width direction of the bag can be improved by various methods such as formation of a notch, use of a film having straight tearability, and formation of a tear-inducing seal. it can. Therefore, according to the box-shaped container of the present invention, the upper end of the bag can be easily opened by hand while the bag is housed in the box. Further, after opening, the bag is pressed against the inner wall of the container body as the powdery substance filled in the bag tries to spread, so that the bag opens greatly. Therefore, it is not necessary to provide the container body with a notch, a hole, a pressing member, or the like for hooking the bag on the inner wall of the container body so that the bag opens greatly in the container body.

Furthermore, since the bag has a reverse taper shape, the bag can be easily inserted into the container body when the bag is refilled.

  In addition, since the container body and the bag are separate, the measuring spoon can be accommodated between the container body and the bag. Therefore, according to this invention, it can prevent that the measuring spoon is buried in the powdery substance in a bag, and generation | occurrence | production of the discomfort by powdery substance adhering to a measuring spoon can also be eliminated.

FIG. 1 is a perspective view of the box-shaped container of the embodiment. FIG. 2 is a perspective view of the box-shaped container of FIG. 1 and a bag and a spoon accommodated therein. FIG. 3 is a (1) front view, (2) AA view, (3) BB view, and (4) bottom view of a bag not filled with a powdery substance. FIG. 4 is a perspective view of the box-shaped container of FIG. 1 with the container body opened. FIG. 5 is a perspective view showing a state in which the upper end of the bag is pulled out from the container body of the box-shaped container of FIG. FIG. 6 is a perspective view when the bag is torn in the box-shaped container of FIG. 1. FIG. 7 is a perspective view after the bag is torn in the box-shaped container of FIG. FIG. 8 is a (1) front view, (2) AA view, and (3) BB view of a bag not filled with a powdery substance. FIG. 9 is a (1) front view and (2) CC view of a bag not filled with a powdery substance.

  Hereinafter, the present invention will be specifically described with reference to the drawings. In each figure, the same numerals indicate the same or equivalent components.

  FIG. 1 is a perspective view of a box-shaped container 1 according to an embodiment of the present invention. In this box-shaped container 1, a film bag 10 filled with a powdery substance and a measuring spoon 20 shown in FIG. 2 are accommodated in a rectangular container body 30, and the opening of the container body 30 is closed with a lid 40. Is.

  FIG. 3 is a front view (1), AA view (2), BB view (3), and bottom view (4) of the bag 10 in a state where the contents are not put, for convenience of description of the bag 10. It is shown. As shown in the figure, the bag 10 is formed by folding a single film sheet into a rectangle so that a folded gusset 11 is formed at the bottom, and forming side seals 12 on both sides by heat sealing or the like. A top seal 13 is formed on the part, and a hem seal 14 is formed on the folded part at the bottom. In this case, the width of the side seals 12 on both sides increases toward the bottom in the gusset 11 region. The top seal 13 and the side seal 12 seal the upper portion of the bag 10 in a flat bag shape. For this reason, the net width W1 of the bag filled with the contents at the bottom is narrower than the net width W2 of the bag filled with the contents at the upper end of the bag 10, and the bag 10 is filled with the powdery substance. Then, as shown in FIG. 2, the width of the lower end portion is narrower than that of the upper end portion, and the area of the bottom portion formed by the gusset 11 (corresponding to the hatched portion in FIG. 3 (4)). The area S) can be made equal to or smaller than the area of the bottom surface of the container body 30. Therefore, when the bag 10 in the container body 30 is refilled, the bag 10 can be easily inserted into the container body 30. Further, since the hem seal 14 is formed at the bottom of the bag 10, the gusset 11 at the bottom of the bag 10 spreads in the thickness direction of the bag 10 when the bag 10 is filled with the powdery substance as the contents. Therefore, the independence as a single refill bag is stabilized.

  Further, as shown in FIG. 3, a tear induction seal 15 is formed below the top seal 13 in the bag 10, and a tear induction seal 15 is formed by sealing the front and back films of the bag 10 in a band shape in the width direction of the bag 10. It is preferable to form a notch 16 in the region of the side seal 12 immediately below. As a result, as shown in FIG. 6, the front and back films are both torn along the tear induction seal 15, so that the tearing directions of the front and back films are aligned, and the bag 10 can be easily placed with the bag 10 in the container body 30. Can be opened in the width direction. In particular, when the bag 10 is a general-purpose film having no tearability, the formation of the tear-inducing seal 15 and the notch 16 is useful for improving the straightness of tearing that tears the bag 10 linearly in the width direction. Even when the bag 10 is formed of a tearable film, if the bag 10 is torn apart from directly below the top seal 13 when the tear-inducing seal 15 or the notch 16 is not formed, the bag 10 The film on the front and back sides of the bag is not aligned, and the usability of the bag 10 after opening may be reduced due to a difference in level or the film on one side popping out. However, the formation of the tear-inducing seal 15 and the notch 16 Such inconveniences can be eliminated, and the straight tearability in the width direction of the bag can be significantly increased. The tear induction seal 15 can be formed by heat sealing, ultrasonic sealing, high frequency sealing, or the like.

  The circumference of the opening when opened at the upper end of the bag 10 is preferably substantially the same as the circumference of the inner dimension of the container body 30. As a result, as shown in FIG. 7, after the bag 10 is opened, the powdery substance P in the bag 10 tries to spread, so that substantially the entire peripheral surface of the bag 10 is pressed against the inner wall of the container body 30. For this reason, the opening shape of the bag 10 is wide and stable, and the powdery substance P can be easily taken out with the measuring spoon 20. Here, about the same dimension means that the upper end opening portion of the bag 10 falls inward or opposite because the peripheral length of the upper end opening portion of the bag 10 is excessively short with respect to the inner peripheral length of the container body 30. If the circumference of the upper end opening of the bag 10 and the circumference of the inner dimension of the container body 30 are about the same, the circumference of the upper end opening of the bag 10 cannot be slackened due to excessively long circumference. Good. On the other hand, if the upper end opening of the bag 10 falls inward or sags, it becomes difficult to measure the contents with the measuring spoon 20.

  In the box-shaped container 1, the film forming the bag 10 includes polyesters such as polyethylene terephthalate; polyamides such as nylon; low density polyethylene (LDPE), linear low density polyethylene (L-LDPE), oriented polypropylene (OPP), Examples thereof include olefinic films such as unstretched polypropylene (CPP), and can be used as a single layer or a laminated film. Further, the film may be a film having a straight tearing property by stretching or the like. This facilitates the opening operation of the bag. When using a film having straight tearability, the film is used so that the tearing direction is the width direction of the bag 10. As a film having tear straightness, a film layer having tear straightness can be used alone or a laminated film of a film layer having tear straightness and another film layer can be used. You may use the film which has tearing advanceability only for the bag upper part which provides tearability to a bag.

  Moreover, it is preferable to set it as 40-200 micrometers normally as thickness of the film which forms the bag 10 so that a film may have a firmness to the extent that the bag 10 becomes self-supporting even in the state without a content. As a result, after opening the bag 10, the powdery material decreases with the use of the powdery material in the bag 10, and the bag 10 is not moved even if the position where the powdery material presses the bag 10 against the inner wall of the container body 30 is lowered. An open state can be maintained and the ease of taking out a powdery substance can be maintained. In addition, the self-supporting property of the bag 10 can also be improved by forming the hem seal 14 at the bottom of the bag 10 as described above.

  Moreover, as a film which forms the bag 10, according to the powdery substance with which the bag 10 is filled, it is preferable to use a film having barrier properties against oxygen, water and the like. Thereby, the barrier property of container main body 30 itself can be reduced, the manufacturing cost of container main body 30 can be reduced, and the manufacturing cost as the box-shaped container 1 whole can also be reduced. In order to give the film forming the bag 10 barrier properties, a film layer having barrier properties may be laminated on the film forming the bags 10. In addition, if necessary, the film forming the bag 10 may be provided with a layer that improves printing suitability and a layer that improves sealing properties.

  On the other hand, the container body 30 can be a rectangular parallelepiped container formed using a paperboard-like material such as paperboard or a plastic sheet.

  Moreover, the lid | cover 40 should just cover the upper surface opening part of the container main body 30, for example, the one edge | side can couple | bond with the back surface of the container main body 30, and hinge shape.

  As shown in FIG. 4, the box-shaped container 1 is used by opening the lid 40 and taking out the measuring spoon 20 accommodated in the container main body 30. Pulled out from the main body 30, and as shown in FIG. 6, the side portion of the bag 10 is picked and the bag 10 is torn in the width direction. By this tearing, the upper end of the bag 10 is removed over its entire width. Then, as shown in FIG. 7, the bag 10 remaining in the container main body 30 is pressed against the inner wall of the container main body 30 by the powdery substance P in the bag 10 as indicated by an arrow, and opens widely.

  When the powdery substance P disappears due to the use of the powdery substance P in the bag 10, a new refilling bag 10 filled with the powdery substance P is prepared and replaced with the previous bag 10. At the time of this replacement, the bag 10 filled with the powdery substance P has an inversely tapered shape, so that the bag 10 can be easily inserted into the container body 30.

  As mentioned above, although one Example of this invention was described about the box-shaped container 1 shown in FIG. 1, this invention can take a various aspect. For example, as shown in FIG. 8, as the bag, a gusset 11 is provided at the bottom of the bag 10B, and both sides of the bottom are sealed and cut so that the bottom of the bag 10B has a boat shape. Then, two side seals may overlap each other.

  Further, by forming the seal width L1 of the top seal 13 wide, the tear induction seal 15 may be omitted, and the notch 16 may be formed in the side seal 12 portion immediately below the top seal 13 (not shown). Further, the notch 16 may be omitted depending on the tearability of the film. The seal width L1 of the top seal 13 when the tear induction seal 15 is omitted is 20 mm from the viewpoint of easy picking when the upper end of the bag 10B is picked so that the bag 10B is torn immediately below the top seal 13. It is preferable to make it about or more.

  Further, as shown in FIG. 9, the bag may have a pillow shape at the top of the bag 10 </ b> C, and gussets 11 are provided on both sides of the bag 10 </ b> C. 17 may be formed. Since these bags 10B and 10C also have a reverse taper type when filled with a powdery substance, they can be easily inserted into the container body when the bags are refilled.

  Moreover, in each bag mentioned above, in order to improve the rectilinear advanceability of a bag, you may form the half cut used as a cutting line with a laser etc. over the full width of a bag.

  In addition, examples of the powdery substance to be filled in the bag 10 include granules or powdery powdery substances such as powder detergents, sugars, and salts.

  The box-shaped container of the present invention is useful as a container for powdered substances such as powder detergents.

DESCRIPTION OF SYMBOLS 1 Box-shaped container 10 Bag 11 Machi 12 Side seal 13 Top seal 14 Hem seal 15 Tear induction seal 16 Notch 17 Bottom seal 20 Measuring spoon 30 Container body 40 Lid P Powdery substance

Claims (5)

A refillable bag made of a film filled with a powdery substance and housed in a container body having an opening on the upper surface, a gusset is formed on the bottom or both sides of the bag, and the upper part of the bag is a belt-shaped tear-inducing seal or with top seal and the bag by Tei Rukoto sealed into a flat bag type in the side seal has a reverse tapered shape having a notch in the side seal region directly below the tearing guide seal or top seal, in the width direction A bag with straight tearability.   The bag according to claim 1, wherein the circumferential length of the opening of the bag opened by tearing in the width direction is substantially the same as the circumferential length of the inner dimension of the container body.   The bag according to claim 1 or 2, wherein the seal width of the belt-like seal at the top of the bag is 20 mm or more. A refillable bag made of a film filled with a powdery substance and housed in a container body having an opening on the upper surface, a gusset is formed on the bottom or both sides of the bag, and the upper part of the bag is a belt-shaped tear-inducing seal or with top seal and the bag by Tei Rukoto sealed into a flat bag type in the side seal has a reverse tapered shape having a notch in the side seal region directly below the tearing guide seal or top seal, in the width direction A method of opening a bag having straight tearability, the bag being inserted into a container body having an opening on the upper surface, and the upper end of the bag protruding upward from the container body while the bag is still in the container body, A bag opening method for removing the upper end portion of the bag over the entire width of the bag by tearing the bag in the width direction from directly below the belt-like seal at the top of the bag.   With the seal width of the belt-like seal at the top of the bag being 20 mm or more, with the bag being housed in the container body, the belt-like seal at the top of the bag is pulled out of the container body, and the upper end of the bag is torn in the width direction of the bag The opening method of Claim 4.

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