JP6394166B2 - Liquid packaging container - Google Patents

Description

  The present invention relates to a liquid packaging container, and more particularly to a liquid packaging container that can be resealed.

  Conventionally, a bottle type container made of synthetic resin or the like has been problematic in that it tends to cause an increase in dust and environmental destruction by performing disposal when it is not needed. Considering the environmental impact of refills for products such as kitchen detergents, laundry detergents, liquid softeners, shampoos, rinses, body soaps, etc. It has come to be provided using a liquid packaging container which is a container selected from the above-mentioned materials and has a shape that is difficult to bulk.

  As an example of the liquid packaging container, it includes a front sheet, a back sheet, and a bottom sheet for the bottom part, and heat-seals opposite sides of each sheet with a bottom sheet folded in half at the bottom of the container. In the portion where the bottom sheet is not interposed, opposite sides of the front sheet and the back sheet are heat-sealed, and at the bottom of the container, the space between the lower side of the front sheet and the lower side of the back sheet is widened so as to widen the bottom sheet. Standing pouch-type liquid packaging containers that can be self-supported by expanding the container bottom are distributed.

  Since it is easy to dispose of the liquid packaging container obtained by laminating such sheets, it has recently been adopted as a container for storing liquid foods such as beverages and liquid seasonings for business use. It is becoming.

  In addition to the above-described standing pouch-type liquid packaging container, a liquid packaging container in which the front sheet and the back sheet are overlapped and the opposite sides are heat-sealed is also a container for storing liquid food for business use. In order to pour out the contents, the top corner of the container is cut to obtain a spout, but instead of using a refillable container, the desired quantity is dispensed in the same manner as the conventional bottle type container usage. For this reason, it is desired to be able to be resealed.

  There are a plurality of proposals for a packaging container created by bonding sheets and having a resealing function. According to Patent Document 1, a container having a container pouring path that rises along the side of the container and reaches the upper part of the container, or a convex part extending upward from the center of the upper part of the container, is poured into this part. The container forming the exit path is shown.

  And, in the container with the stored item pouring path along the side of the container, the tip of the stored item pouring path is cut out so that a spout can be obtained. Separate the space between the heat-sealed thin plate portions that are arranged side by side, bend the stored item pouring path sideways toward the slit formed in the heat-sealed thin plate portion, and insert the spout into the slit. In addition, in the case of a container provided with a stored item extraction path projecting upward in the center of the upper part of the container, the stored item extraction path formed by cutting off the tip and forming a spout is bent toward the bottom of the container, The outlet is inserted into a slit formed by cutting in the heat seal part located in the center of the storage part, and the front sheet and the back sheet are in contact with each other and closed by bending the part of the stored item extraction path so That. Furthermore, the point which locked the latching recessed part provided in the vicinity of the spout of the stored article extraction path to the slit so that the part of the spout could not be inadvertently removed is also shown.

  Further, in Patent Documents 2 and 3, a belt-like sheet is arranged across the width direction of the container on the outer surface side of one of the two sheets constituting the container storage portion, The left and right sides of the belt-like sheet are heat-sealed to the side of the container and integrated, and the spout is obtained by cutting the front end of the stored item extraction path on the upper side of the container. A container is shown in which the spout can be protected by folding it toward the bottom of the container and positioning the spout portion of the stored item pouring path between the container main body and the belt-like sheet.

  Further, in Patent Document 4, a perforated opening line is provided in the container width direction on one of the front sheet and the back sheet that form the storage portion facing each other, and the opening line position is stored. An opening bending that opens the position of the unsealing line by overlapping a belt-like sheet on the inner surface of the one sheet so as to cover from the inner side of the part, and sealing the four sides of the belt-like sheet to the one sheet A container has been proposed in which a holding part is provided inside the storage part. And in this container, the upper part of the container is cut to form a wide-mouthed spout, and the part of the spout is folded inside the opening bent holding part while opening the position of the opening line while bending the upper part of the container toward the bottom of the container. A technique is shown in which the upper portion of the container is kept bent and the spout is protected.

Japanese Utility Model Publication No. 61-107741 JP 61-164138 A No. 03-040751 JP 2013-067397 A

  A packaging container in which the opposite sides of the stacked sheets are heat-sealed, after the liquid is poured out from the spout formed by cutting, a part of the stored item remains on the spout and remains attached easy. Therefore, in the packaging container shown by patent document 1 mentioned above, the re-sealing only inserts the part used as the spout outlet side of a stored material extraction path into a slit, and the spout remains in the state exposed outside. Thus, when the liquid pavement container is handled, the liquid remaining in the spout may adhere to other articles and become dirty.

  On the other hand, in the packaging containers shown in Patent Documents 2 to 4, the spout is not simply inserted into and removed from the slit, but the spout is obscured, so that liquid moves from the spout to other articles and becomes dirty. There is no malfunction. However, since a portion that can cover the spout is formed by combining another member with the container, there is a problem that the manufacturing of the container becomes complicated and the manufacturing cost increases.

  Therefore, in view of the above circumstances, the present invention has an object to provide a portion that can cover and cover the spout without using a member different from the packaging material of the container. An object of the present invention is to provide a container that can be inserted and a portion of the spout side can be inserted without exposing the spout.

(Invention of Claim 1)
The present invention was made in consideration of the above problems, in the liquid packaging container in which the front sheet and the back sheet face each other and the sides of the overlapping sheets are heat-sealed,
Contained item extraction path that is convex upward on the top of the container and has a planned opening portion on the tip side is provided,
A part of one of the front sheet and the back sheet, a part of this one sheet is formed in a Z shape toward the container bottom and the container bottom over the container width direction, One of the sheets is folded inward from the valley fold portion of the Z-shaped fold toward the bottom of the container, and the mountain fold is continuous with the mountain fold portion of the Z-fold in the lower end of the folded inner sheet. A bag portion is provided that is folded from the portion toward the upper portion of the container and overlapped with the folded inner sheet;
It is possible to engage and disengage by inserting the portion of the spout when the stored material spout path where the spout is formed by bending the opening portion of the bag portion toward the bag portion is cut. There is an insertion slot to lock,
The insertion port is a slit cut into the folded outer sheet, and the folded outer sheet between the insertion port and the mountain fold portion is a slit which is opposed to the slit by relative movement with respect to the folded inner sheet. It is considered as an opening means that opens the insertion slot by separating the edges,
The stored item pouring path which is bent toward the bag portion and the portion of the spout is inserted into the insertion port is locked to the insertion port, so that the stored item pour channel is blocked and the spout is concealed. The present invention provides a liquid packaging container characterized in that the above-mentioned problems are solved.

(Invention of Claim 2 )
Further, in the present invention, the bag portion is heat-sealed at three portions excluding the side on the mountain fold portion side of the opposite sides of the folded inner sheet and the folded outer sheet. It is preferable that the insertion port is provided in an unsealed region of the outside sheet.

(Invention of Claim 3 )
Furthermore, in the present invention, the bottom sheet is folded in two between the front sheet and the back sheet on the container bottom side, and the container bottom can be unfolded so that the bottom sheet can be opened to be self-supporting. It is good to have.

(Effect of the invention of claim 1)
According to the first aspect of the present invention, the bag portion for closing the stored item pouring path and concealing the pouring port is formed by folding a part of one sheet outward in a Z shape. An excellent effect is obtained in that a container capable of closing the stored item discharge path and concealing the discharge port without using a member is obtained.

Moreover, according to the said invention, the insertion means of the bag part will open by operating the opening means provided in the bag part, and the operation | work which inserts the spout outlet side of the stored article extraction path becomes easy.

(Effect of the invention of claim 2 )
According to the invention of claim 2 , even if the liquid from the inserted spout enters the inside of the bag portion, there is an effect that leakage from the bag portion to the outside can be surely prevented.

(Effect of the invention of claim 3 )
According to invention of Claim 3 , since it is set as the container which can become independent, there exists an effect that handling becomes easy.

It is explanatory drawing shown in the state which looked at an example of the liquid packaging container which concerns on this invention from the front sheet | seat side. It is explanatory drawing shown in the state which looked at an example from the back seat side similarly. It is explanatory drawing which shows the state which opened the stored article extraction path in an example. It is explanatory drawing which shows the state which bent the stored article extraction path. It is explanatory drawing which shows a bag part schematically by a longitudinal cross-section.

  Next, the present invention will be described in detail based on the embodiment shown in FIGS. In the figure, reference numeral 1 denotes a liquid packaging container, which is formed by stacking sheets and heat-sealing opposite sides of the container upper part 2, the left and right container side parts 3, 4 and the container bottom part 5. In the embodiment, the front sheet 6 and the back sheet 7 are overlapped, and the sides directly opposed at the container upper part 2 and the container side parts 3 and 4 are heat-sealed, and the container bottom part In the state where the bottom sheet 8 folded in half on the 5 side is interposed, the front sheet 6 and the back sheet 7 are overlapped, and at the container bottom part 5 side and the container bottom part 5 part of the container side parts 3 and 4 The sides directly facing each other are heat-sealed, and by opening the bottom sheet 8, the space between the lower side of the front sheet 6 and the lower side of the rear sheet 7 spreads and the container bottom 5 is unfolded. With a container that can stand on its own Is shall. In other words, the container bottom 5 is unfolded and self-supporting as the container bottom 5 is filled as described above.

(Containment extraction path)
In the present embodiment, the front sheet 6 and the back sheet 7 are formed so that the dimensions in the container width direction gradually decrease from the container bottom 5 side toward the container upper side in the shape of the front view viewed from the front sheet 6 side. A storage portion 9 is formed with a space as a storage space. Further, the container upper part 2 above the storage part 9 has a mountain shape in a front view, and this part is tapered toward the upper part of the container so that the inside is inside the storage part 9. It is a continuous item extraction path 10 and is further extended so that the center of the container upper part 2 is convex toward the upper side of the container, so that the inner passage width in the container width direction is substantially the same in the extended part. The width.

(Scheduled opening)
As shown in FIG. 1 and FIG. 2, a scheduled opening portion 12 is provided in the container width direction at the distal end portion 11 of the stored article extraction passage 10 that is the uppermost side of the container 1. The planned opening portion 12 is a portion to be opened to form the spout 13 and is formed by printing to indicate a portion to be cut, or this sheet is attached to the front sheet 6 and the back sheet 7. It can be formed by laser irradiation half-cut so as not to penetrate, and in this embodiment, the planned opening portion 12 is a portion formed by laser-cutting half cut.

Further, at the height position of the planned opening portion 12, the seal side portions 14 formed by heat-sealing the sides of the front sheet 6 and the back sheet 7 on both sides of the stored article extraction path 10 are cut out. A notch 15 is provided so that tearing proceeds from the notch 15 along the position of the planned opening portion 12 so that a spout can be easily formed by manual operation. See Figure 3

  The liquid packaging container 1 according to the present embodiment is provided so that the stored item dispensing passage 10 can be closed after a necessary amount of the stored item is poured out from the spout 13 formed by cutting the planned opening portion 12. It has been. In the re-sealing, it is only necessary to fold the portion of the storage material extraction passage 10 in a direction overlapping the back sheet 7 so that the spout 13 faces the bottom 5 of the container. The front sheet 6 and the back sheet 7 at the portion where they are in contact with each other are configured to close the stored item extraction path 10. See Figure 4

(Bag part)
As shown in FIG. 1, the back sheet 7 has a spout 13 when the stored material discharge path 10 is folded so that the spout 13 faces the container bottom 5 and overlaps the front sheet 6. A bag portion 16 is provided as a corresponding portion. As will be described later, by locking the portion of the spout 13 of the stored item extraction path 10 to the portion of the bag portion 16, the stored item extraction path 10 is bent and the stored item extraction path 10 is closed. I try to do it. Further, the portion of the spout 13 is covered so as to be positioned inside the bag portion 16, and even if a liquid is attached to the spout 13 by this concealment, the liquid is prevented from moving to another object.

As shown in FIG. 2 and FIG. 5, the bag portion 16 has a part corresponding to the upper side of the storage portion 9 in the back sheet 7 facing the container bottom 5 across the width of the container. It is folded in a Z shape. Then, as shown in FIG. 5, the front sheet 6 is folded toward the container bottom 5 from the position of the valley fold 17 in the container width direction in the Z-shaped fold to form the folded inner sheet 18. The folding sheet 19 is folded at the lower end of the folded inner sheet 18 from the mountain fold 19 in the Z-shaped folding in the container width direction toward the container upper part 2 and overlaps the folded inner sheet 18. An outer sheet 20 is formed.

  And the four sides facing the overlapping folded inner sheet 18 and folded outer sheet 20, specifically, the container side portions 3 and 4 side of the folded inner sheet 18 and the folded outer sheet 20, and Side edges that correspond to the valley folds 17 in the folded outer sheet 20 and the side edges along the valley folds 17 of the folded inner sheet 18. Inside, the three sides excluding the side that becomes the mountain fold part 19 side are heat-sealed to form a bag seal side part 21, and in the unsealed area 22 of the folded outer sheet 20, the folded inner seal 18. In the vicinity of the bag seal side portion 21 along the position of the valley fold portion 17, an insertion port 23 formed by a slit cut in the container width direction is provided.

  The insertion port 23 of the bag portion 16 is formed by the portion of the spout 13 of the stored item discharge passage 10 when the stored item discharge passage 10 formed with the spout 13 is bent toward the bag portion 16 side. It can be inserted and can be removably locked. As shown in FIG. 1, there is a locking piece 24 formed by projecting the seal side portion 14 in the container width direction at a position below the planned opening portion 12, and a portion on the spout 13 side of the stored item extraction passage 10 at the insertion port 23. Is inserted while causing slight deformation including the locking piece 24, the portion of the spout 13 is expanded inside the bag portion 16, and the locking piece 24 is locked to the edge of the insertion port 23. Inadvertently, the portion of the spout 13 is prevented from coming out. In this way, in order to enable the portion of the spout 13 of the stored item extraction passage 10 to be detachably inserted into the insertion port 23, in this embodiment, the locking piece 24 is more than the width of the insertion port 23. The size in the container width direction where is located is slightly increased.

  The folded outer sheet 20a between the insertion port 23 and the mountain fold portion 19 can be slidably contacted with the corresponding folded inner sheet 18, and the folded outer sheet 20a makes the inner surfaces contact each other. It can move relative to the folded inner sheet 18 in the state. Of course, it does not move greatly with respect to the folded inner sheet 18, but because it is located near the insertion slot 23, it moves relative to the folded inner sheet 18 at a position near the insertion slot 23. It is possible.

(Opening means)
Then, while holding the folded outer sheet 20a, which is in the vicinity of the insertion opening 23, and the folded inner sheet 18 corresponding thereto with two fingers such as a thumb and an index finger, the folded outer sheet 20a Can be slid relative to the folded inner sheet 18, and the folded outer sheet 20 a is provided as the opening means 25 of the insertion opening 23.

  That is, the cut edge 25 on the side of the bag seal side 21 along the mountain fold portion position of the insertion port 23 is not easily deformed because it is close to the bag seal side 21, but the cut edge 26 facing this is Since the outer folding sheet 20a moves, it is a portion that is easily deformed. Therefore, by performing a simple operation of sliding the opening means 25 with respect to the folding inner sheet 18, the cutting edges 26 and 27 are cut. And the insertion port 23 is opened so that the portion of the spout 13 of the stored item extraction passage 10 can be easily inserted. In addition, in FIG. 5, the state which pulled the opening means 25 and opened the insertion port 23 was shown with the dashed-dotted line.

  In the above embodiment, a standing pouch type container having a bottom sheet and self-supporting by expanding the container bottom is shown, but the present invention is not limited to this, and is a four-side seal type container. It can also be carried out on a container having a property.

DESCRIPTION OF SYMBOLS 1 ... Liquid packaging container 2 ... Container upper part 3 ... Container side part 4 ... Container side part 5 ... Container bottom part 6 ... Front sheet 7 ... Back sheet 10 ... Stored material extraction path 11 ... Tip part 12 ... Opening scheduled part 13 ... Outlet DESCRIPTION OF SYMBOLS 14 ... Seal side 15 ... Notch 16 ... Bag part 17 ... Valley folding part 18 ... Folding inner sheet 19 ... Mountain folding part 20 ... Folding outer sheet 20a ... Folding outer sheet 21 ... Bag seal side part 22 ... Unseal Area 23 ... Insertion slot 24 ... Locking piece 25 ... Opening means 26 ... Cutting edge 27 ... Cutting edge

Claims (3)

In the liquid packaging container in which the front sheet and the back sheet face each other and the sides of the overlapping sheets are heat-sealed,
Contained item extraction path that is convex upward on the top of the container and has a planned opening portion on the tip side is provided,
A part of one of the front sheet and the back sheet, a part of this one sheet is formed in a Z shape toward the container bottom and the container bottom over the container width direction, One of the sheets is folded inward from the valley fold portion of the Z-shaped fold toward the bottom of the container, and the mountain fold is continuous with the mountain fold portion of the Z-fold in the lower end of the folded inner sheet. A bag portion is provided that is folded from the portion toward the upper portion of the container and overlapped with the folded inner sheet;
It is possible to engage and disengage by inserting the portion of the spout when the stored material spout path where the spout is formed by bending the opening portion of the bag portion toward the bag portion is cut. There is an insertion slot to lock,
The insertion port is a slit cut into the folded outer sheet, and the folded outer sheet between the insertion port and the mountain fold portion is a slit which is opposed to the slit by relative movement with respect to the folded inner sheet. It is considered as an opening means that opens the insertion slot by separating the edges,
The stored item pouring path which is bent toward the bag portion and the portion of the spout is inserted into the insertion port is locked to the insertion port, so that the stored item pour channel is blocked and the spout is concealed. A liquid packaging container characterized in that the above is maintained. The bag part is heat-sealed at the three sides of the opposite sides of the folded inner sheet and the folded outer sheet, excluding the side on the mountain folded side, and the folded outer sheet is not sealed. liquid packaging container mounting serial to claim 1, wherein the insertion opening is provided in the region. The container bottom side are located the bottom sheet is two-folded to between the front sheet and the back sheet, the claim expand container bottom to open the bottom sheet and is capable self 1 Or the liquid packaging container of 2.

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