JP6639872B2 - container - Google Patents

Description

  The present invention relates to a container.

  Liquid detergents, liquid soaps, shampoos. 2. Description of the Related Art A container (pouch) made of a flexible film is known as a packaging material for accommodating a liquid substance such as a liquid seasoning, a granular detergent, and a granular substance such as a granular seasoning. The pouch is formed by thermally bonding the peripheral portions of the front side flexible film, the back side flexible film, and the bottom side flexible film, and is often used as a refill container (for example, Patent Documents 1 to 3).

  In existing packaging equipment for producing refill pouches, pouches are first manually supplied to a filling machine magazine. At this time, flat bag-shaped pouches are supplied in a stacked state alternately displaced in the longitudinal direction, and are automatically supplied to the transfer chuck hand by a suction cup at the tip of the magazine. Thereafter, the lot is transferred vertically to a transfer chuck hand on the side of the filling machine, transferred, and a lot is printed on the lower part of the pouch.

JP-A-7-223652 Japanese Patent No. 2720106 Japanese Patent No. 4232402

However, in the automatic supply by the suction cup at the front end of the magazine, it is desired to supply the pouches one by one. However, the pouches may not be sent out one by one due to close contact due to static electricity or the like.
Further, if the pouch is warped when being delivered to the chuck hand, the printing position may be shifted in the lot printing process.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a container which can stably supply one sheet at a time and can improve the quality of lot printing.

A container according to one embodiment of the present invention is a container including a container main body including a storage chamber for storing contents, and a pouring unit protruding from the container main body, and includes a front-side flexible film and a front-side flexible film. A back side flexible film to be superimposed on a flexible film, and a bottom side flexible film disposed between the front side flexible film and the back side flexible film, wherein the periphery of each film is The container body and the spout are integrally molded and sealed, and the front flexible film and the rear flexible film are concave with respect to the inner surfaces facing each other, and the inner surface is Embossed portions that are convex with respect to the outer surface on the opposite side are provided to extend linearly in the longitudinal direction of the container body, respectively, and a first embossed portion of the front side flexible film and the back side flexible film are provided. The second embossed part of the film And only disposed in a position that does not overlap with a portion of the first embossed portion and said second embossed portion, of the front side flexible film or the back side flexible film, the filling of the contents The upper end that is opened for the purpose .

  In the container of one embodiment of the present invention, at least one of the first embossed portion and the second embossed portion may be provided in plurality.

  In the container of one embodiment of the present invention, the first embossed portion and the second embossed portion may be configured to extend along a transport direction in a line for producing the container.

  Further, in the container of one embodiment of the present invention, the first embossed portion and the second embossed portion may be configured to extend linearly in a longitudinal direction of the container main body.

  In the container of one embodiment of the present invention, the first embossed portion and the second embossed portion may be configured to be inclined at a predetermined angle with respect to a longitudinal direction of the container main body.

  ADVANTAGE OF THE INVENTION According to the container of this invention, a container which can be supplied stably one by one and can improve the quality of lot printing can be provided.

FIG. 2A is a diagram of the pouch according to the first embodiment as viewed from the front flexible film side, where FIG. 2A is a plan view, and FIG. 2B is a cross-sectional view taken along line A-A ′ of FIG. 2A is a plan view of the pouch according to the first embodiment as viewed from the back side of the flexible film, and FIG. 2A is a plan view and FIG. 2B is a cross-sectional view taken along line B-B ′ of FIG. It is a figure which shows the loading state of a pouch, and was seen from the longitudinal direction. The graph which shows the relationship between the sliding angle in the extension direction of a pouch, and weight mass. The graph which shows the relationship between the slip angle in the side direction of a pouch, and a weight. The figure seen from the front side flexible film side in the pouch of 2nd Embodiment. The figure seen from the back side flexible film side in the pouch of a 2nd embodiment.

Hereinafter, a container as one embodiment of the present invention is explained.
In the following drawings, the scale of the dimensions may be different depending on the components in order to make the components easier to see.

[First Embodiment]
FIG. 1 is a view of the pouch of the first embodiment as viewed from the front side flexible film side, where (a) is a plan view and (b) is a cross-sectional view taken along line AA ′ of (a). is there. 2A and 2B are diagrams of the pouch according to the first embodiment as viewed from the back side of the flexible film, where FIG. 2A is a plan view and FIG. 2B is a cross-sectional view taken along line BB ′ of FIG. is there. FIG. 3 is a diagram showing a stacked state of the pouches, as viewed from the longitudinal direction.

  As shown in FIGS. 1A and 2A, a pouch (container) 1 of the present embodiment includes a container main body 10 having a storage chamber 12 for storing contents, and a pouring protruding from the container main body 10. And a unit 14.

  The container body 10 and the pouring section 14 are formed integrally with at least two flexible films stacked on each other and the peripheral edges thereof are sealed. Specifically, the front side flexible film 1a, the back side flexible film 1b, which constitutes the side wall and the pouring portion 14 of the container body 10, and one bottom surface which constitutes the bottom wall of the container body 10 can be used. The flexible film 1c and the flexible film 1c are overlapped, and their peripheral edges are integrally formed by being heat-sealed so as not to peel off.

  Here, the thermal bonding portions 7 and 8 are formed on both sides of the front flexible film 1a and the rear flexible film 1b, and the thermal bonding portion 13 is formed on the bottom side. The upper ends of the flexible films 1a and 1b are open for filling the contents, and after the contents are filled therein, they are heat-sealed like other parts.

  The bottom flexible film 1 c is folded in two, and the folded portion 1 d is arranged so as to face the inside of the pouch 1. As described above, the pouch 1 can be self-supported by the bottom flexible film 1c being pushed downward by the weight of the contents.

  Examples of the material forming the pouch 1 include single-layer films of polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), ethylene-vinyl alcohol copolymer (EVOH), polyamide (PA), and the like. Laminates and the like can be mentioned.

  A resin film or the like made of the above material functions as a printing base material, and a product name, a description, a design, and the like are printed on one surface side. In the present embodiment, it is printed on a surface inside the pouch 1.

  The front-side flexible film 1a and the back-side flexible film 1b are provided with a thin metal layer such as an aluminum foil or a metal layer such as a metal vapor-deposited film, a silica or carbon vapor-deposited film or the like in order to prevent oxygen or water vapor from entering. May be. A metal layer, a vapor deposition film, and the like are laminated on the above-described resin film, and form an inner surface of the pouch 1.

  The container main body 10 has a substantially rectangular shape, and the upper corner of the side on which the pouring portion 14 is provided is narrowed in the width direction (X direction), and the width of the upper part of the container main body 10 is smaller than the width of the bottom. It has a shape. The pouring section 14 is formed so as to project obliquely upward from the side end of the constricted portion at the top of the container body 10.

  A half-cut line 16 is formed at the tip of the pouring section 14 in a direction intersecting with the outflow direction of the contents for the purpose of improving the opening property and regulating the opening direction. An opening can be formed at the tip of the pouring section 14 by cutting and opening the tip of the pouring section 14 along the half cut line 16.

  The half-cut line 16 includes, for example, a line formed by a method of partially removing the surface of a flexible film by laser light irradiation. The number of the half-cut lines 16 may be one or a plurality. Further, it is preferable that a notch is formed at the end of the half-cut line 16 at the start of opening. Examples of the shape of the notch include a semicircular shape, an I shape, and a V shape.

The pouch 1 of the present embodiment has an adhesion preventing structure that is useful for preventing adhesion of stacked pouches in an automatic supply area of a packaging facility.
Specifically, the front side flexible film 1a and the back side flexible film 1b constituting the pouch 1 are respectively embossed.

  As shown in FIG. 1A and FIG. 2A, a pair of embossed portions 2 and 3 are formed on the front side flexible film 1a and the back side flexible film 1b, respectively. As shown in FIGS. 1B and 2B, the first embossed portion 2 and the second embossed portion 3 are concave with respect to the inner surfaces 1g of the flexible films 1a and 1b facing each other. It becomes convex with respect to the outer surface 1f opposite to the inner surface 1g.

  The front flexible film 1a is provided with two first embossed portions 2 and 2 in parallel with each other, and the back flexible film 1b is provided with two second embossed portions 3 and 3 in parallel with each other. It is provided in.

  The first embossed portions 2 extend linearly from the upper end 1e of the front side flexible film 1a along the longitudinal direction (Y direction), and are longer than the central portion in the longitudinal direction. It has a length that does not reach the folded portion 1d of 1c.

  On the other hand, the second embossed portions 3 also extend linearly from the upper end 1e of the back side flexible film 1b along the longitudinal direction (Y direction), and are longer than the central portion in the longitudinal direction. It has a length that does not reach the folded portion 1d of the flexible film 1c.

  Here, by making each end of the embossed portions 2 and 3 coincide with the upper ends of the flexible films 1a and 1b, in the step of filling the empty pouch 1 with the contents, the unsealed pouch 1 is filled. Can be opened efficiently at the upper end side.

  In the present embodiment, as shown in FIG. 3, the first embossed portions 2 and 2 on the front side and the second embossed portions 3 and 3 on the back side are arranged at positions where they do not overlap each other in the plane direction. Specifically, the second embossed portions 3, 3 are arranged at intervals wider than the intervals at which the first embossed portions 2, 2 are arranged in the short direction of the pouch 1.

  The protrusion height of the embossed portions 2 and 3 is, for example, 0.6 mm. The cross-sectional shape of the embossed portions 2 and 3 in a direction intersecting the longitudinal direction is a semicircular shape.

  In the step of filling contents such as a liquid detergent on a production line, a plurality of pouches 1 are supplied one by one in an empty state. Although there are various pouch supply methods, a type in which a plurality of empty pouches are fed one by one with a feed-out roller from above in a stacked state shifted in the longitudinal direction is general. The force with which the feeding roller suppresses a plurality of pouches arranged at shifted positions varies depending on the influence of the number of stacked sheets or the like. Therefore, when the number of stacked pouches is small, the pouch is easy to slide, and when the number of stacked pouches is large, the pouch is hard to slip. As described above, the supply state of the pouch 1 is greatly affected by the method of setting the pouch 1 in the packaging facility.

  On the other hand, in the pouch 1 according to the present embodiment, the first embossed portion 2 and the second embossed portion 3 provided on each of the front and back sides can reduce the adhesiveness to the pouch 1 that overlaps vertically. In the step of filling the contents into the pouch 1, pouches can be supplied one by one. Also, as shown in FIG. 3, the first embossed portion 2 and the second embossed portion 3 are arranged at positions where they do not overlap with each other in a plan view in which the front side flexible film 1a and the back side flexible film 1b are overlapped. Have been. For this reason, for example, a plurality of pouches 1 can be stored in a delivery box in a close-packed state, and more pouches 1 can be delivered in one box.

  Further, the supply guide for the pouch 1 provided on the production line has a size having an appropriate clearance with the pouch 1 so that the pouch 1 can be supplied smoothly, but if the clearance is too large, The pouch 1 is supplied obliquely to the feeding direction. Conversely, if the clearance is too narrow, the pouch 1 will be caught on the supply guide and will not be supplied smoothly.

  On the other hand, in the present embodiment, the embossed portion 2 on the front side of one pouch 1 positioned vertically in the loaded state is engaged with the embossed portion 3 on the back side of the other pouch 1. The movement in the direction, that is, the movement in the direction intersecting the payout direction is restricted. Thereby, the pouch 1 can be maintained in a posture along the feeding direction, and the pouch 1 can be smoothly supplied from the supply guide.

  Further, the plurality of embossed portions 2 and 3 extending linearly along the longitudinal direction of the pouch 1 can prevent the pouch 1 from warping. Therefore, the printing position of the pouch 1 is not shifted in the lot printing process, and the lot printing can be performed stably, so that the printing quality can be improved.

  In addition, the length in the longitudinal direction of the first embossed portion 2 and the second embossed portion 3 can be appropriately changed, and is set to such an extent that the pouch 1 does not warp according to the size and material of the pouch 1. .

<Verification>
In order to verify the effect of the pouch of the present embodiment, the present inventors prepared two embossed pouches of the example and measured their slip angles (°).
One pouch was fixed to the base of the friction angle tester, and the other pouch was fixed to the back side of the weight. With these pouches superimposed on each other, the base was inclined obliquely at the same time as the start of the measurement, and the angle at which the weight began to slide was measured for verification. This time, the verification was performed by changing the weight of the weight used. The smaller the slip angle, the more slippery.

FIG. 4 is a graph showing the relationship between the slip angle and the weight of the pouch in the feeding direction. FIG. 5 is a graph showing the relationship between the slip angle in the side direction of the pouch and the weight.
4 and 5, graphs of the slip angle of the pouch without embossing are shown as comparative examples.

(Pouch extension direction)
As shown in FIG. 4, in the pouch of the comparative example, the slip angle varied depending on the weight of the weight, but in the pouch of the embodiment in which the embossing was performed, the slip angle was substantially constant regardless of the weight of the weight. there were.

(Pouch side direction)
As shown in FIG. 5, in the pouch of the comparative example, the variation of the slip angle was increased by the mass of the weight. On the other hand, in the pouch of the example, even if the mass of the weight was changed, there was no large difference in the slip angle.

  From the above verification, it has been found that the embossing of the pouch 1 stabilizes the slip angle in both the feeding direction and the side direction. Thereby, a stable slip angle can be ensured irrespective of a change in the load of the feeding roll. That is, even if any load is applied, the pouch 1 having uniform sliding characteristics can be provided. Therefore, it is possible to smoothly supply the pouches 1 one by one without being affected by the variation in the method of setting the pouches 1 with respect to the apparatus.

[Second embodiment]
Next, a pouch according to a second embodiment of the present invention will be described.
The basic configuration of the pouch of this embodiment described below is substantially the same as that of the first embodiment, except that two or more embossed portions are provided on the front and back sides, respectively. Therefore, in the following description, the adhesive structure by embossing different from the previous embodiment will be described in detail, and description of common parts will be omitted. In addition, in each drawing used for description, the same reference numerals are given to the same components as those in FIGS.

FIG. 6 is a view of the pouch according to the second embodiment as viewed from the front flexible film side. FIG. 7 is a view of the pouch according to the second embodiment as viewed from the back side of the flexible film.
The pouch 21 of this embodiment has a structure having four embossed portions on the front side and three embossed portions on the back side.

  As shown in FIG. 6, the front side flexible film 21a has two embossed portions (first embossed portions) 22 and 22 arranged on the upper end side and two embossed portions (first embossed portions) arranged in the center. ) 23, 23.

A pair of embossed portions 22, 22 located on the upper end side include a linear portion 22a extending from the upper end 1e along the longitudinal direction (Y direction) of the pouch 21 and an inclined portion 22b inclined at a predetermined angle θ1 with respect to the longitudinal direction. And, respectively. Each of the embossed portions 22 has a shape in which the end opposite to the straight portion 22a is inclined so as to spread in the short direction (X direction) of the pouch 21.
The pair of embossed portions 22 have a length such that the embossed portions 22 are located at the center of the half cut line 16 from the upper end 1e in the longitudinal direction (Y direction).

The pair of embossed portions 23, 23 located at the center are also inclined at a predetermined angle θ2 with respect to the longitudinal direction (Y direction). The inclination angle θ2 is smaller than the inclination angle θ1 of the inclined portion 22b in the embossed portion 22 (θ2 <θ1). Note that the inclination angles θ1 and θ2 are appropriately set and may be equal to each other.
The pair of embossed portions 23, 23 have a length in the longitudinal direction (Y direction) such that the embossed portions 23 do not reach the folded portion 1d of the bottom flexible film 1c from the lower end side of the pouring portion 14.

  As shown in FIG. 7, the flexible film 21b for the back surface includes one embossed portion (second embossed portion) 24 arranged on the upper end side and two embossed portions (second embossed portion) arranged at the center. 25, 25.

  The embossed portion 24 located on the upper end side includes a linear portion 24a extending from the upper end 1e along the longitudinal direction (Y direction), and a pair of inclined portions 24b, 24b inclined at a predetermined angle θ1 with respect to the longitudinal direction. Become. The embossed portion 24 on the back side has an inverted Y-shape that bifurcates from the lower end of the linear portion 24a. The length of the embossed portion 24 in the longitudinal direction is equal to the length of the embossed portions 22 on the front side.

  The pair of embossed portions 25, 25 located at the center, like the front side, extend linearly in a direction inclined at a predetermined angle θ2 with respect to the longitudinal direction. The length of the embossed portion 25 on the back side in the longitudinal direction is equal to the length of the embossed portion 23 on the front side.

  Here, in a plan view in which the front side flexible film 21a and the back side flexible film 21b are overlapped, the back side embossed portion 24 is located inside the pair of embossed portions 22 provided on the front side. , Are arranged so as not to overlap with the embossed portions 22, 22.

  On the other hand, the pair of embossed portions 25, 25 are also positioned inside the pair of embossed portions 23, 23 provided on the front side, and are arranged so as not to overlap with the embossed portions 23, 23 in the above-described plan view. I have.

  According to the present embodiment, the plurality of embossed portions 22 and 25 inclined with respect to the longitudinal direction of the pouch 21 can impart unidirectionality to the feeding direction of the pouch 21 on the production line. Thereby, in the step of filling the contents, the empty pouches 21 stacked in a sheet shape can be reliably supplied to the filling machine magazine. In other words, in the loaded state, the embossed portions 22 on the front side of one pouch 21 are engaged with the embossed portions 25 on the back side of the other pouch 21, so that the pouch 21 moves in the supply direction. Is regulated. Thereby, for example, it is possible to eliminate a problem that the overlapping area between the pouches 21 is increased and two sheets are supplied simultaneously.

  As described above, the preferred embodiments according to the present invention have been described with reference to the accompanying drawings, but it is needless to say that the present invention is not limited to the examples. It is obvious that those skilled in the art can conceive various changes or modifications within the scope of the technical idea described in the claims. It is understood that it belongs to.

For example, the number and position of the embossed portions provided on the pouch can be appropriately set.
Further, the shape in the extending direction may be changed, for example, by partially increasing (narrowing) the width of the embossed portion. Further, the embossed portion is not limited to a shape extending continuously in one direction, and may be partially divided.
Further, the height of the first embossed portion and the height of the second embossed portion may be changed, or the height may be changed in the extending direction of each embossed portion.

  DESCRIPTION OF SYMBOLS 1 ... Pouch (container), 1a ... Film, 1a, 21a ... Front side flexible film, 1b ... Back side flexible film, 1c ... Bottom flexible film, 1e ... Top end, 1f ... Outside surface, 1g ... Inside surface, 2, 22, 23: first embossed portion, 3, 24, 25: second embossed portion, 10: container body, 12: accommodation chamber, 14: pouring portion

Claims (5)

A container having a container main body having a storage chamber for storing contents, and a pouring portion protruding from the container main body,
A front side flexible film,
A back side flexible film superimposed on the front side flexible film,
A bottom flexible film disposed between the front side flexible film and the back side flexible film,
The periphery of each film is sealed and the container body and the spout are integrally formed,
The front-side flexible film and the back-side flexible film have an embossed portion that is concave with respect to the inner surface facing each other and is convex with respect to the outer surface opposite to the inner surface. Are provided extending linearly in the direction,
The first embossed portion of the front side flexible film and the second embossed portion of the back side flexible film are arranged only at positions where they do not overlap each other ,
Part of the first embossed portion and the second embossed portion coincides with the upper end of the front side flexible film or the back side flexible film which is opened for filling the contents. A container characterized by the following:   The container according to claim 1, wherein a plurality of at least one of the first embossed portion and the second embossed portion are provided. The first embossed portion and said second embossed portion container according to claim 1 or 2, characterized in that extending along the conveying direction of the line for producing the container. The container according to claim 3 , wherein the first embossed portion and the second embossed portion extend linearly in a longitudinal direction of the container main body. The container according to claim 4 , wherein the first embossed portion and the second embossed portion are inclined at a predetermined angle with respect to a longitudinal direction of the container main body.

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