JP2002205747A - Refilling pouch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refilling pouch which is capable of consistently spouting the liquid content without causing blocking even when the diameter of a spout is small, and easily deforming the spout. SOLUTION: This pouch is a bag formed by overlapping at least two synthetic resin side wall films 2 and 2', a spout 7 protruded in the predetermined direction is formed at an appropriate position of a peripheral edge of a bag-like body, liquid leading passages 8 and 8' of the predetermined length and projecting section along the axis X-X in the projection direction of the spout 7 is formed to the spout 7, and reinforcing parts 9 and 9' of the predetermined length and projection section are formed in the vicinity of side parts of the liquid leading passages 8 and 8' in a back-and-face asymmetrical manner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pouch for refilling which can be stably poured without clogging even when the spout has a small diameter, and in which the spout can be easily deformed.

[0002]

2. Description of the Related Art Liquid products containing liquid contents such as liquid detergents, bleaching agents, softeners, shampoos, and rinses in self-contained rigid containers are used for refilling in order to save resources and reduce costs. The liquid content is sealed in a pouch and sold as a liquid product exclusively for refilling.
The refill pouch used for this purpose is made into a bag by laminating two side wall films and a bottom wall film, and bonding the peripheral edge of the pouch by heat welding. In general, a cutout type spout is integrally formed.

In such a refillable pouch, since the constituent material of the pouch is a film made of a soft synthetic resin or the like, a spout is not sufficiently opened when the content liquid is poured out, or even if it is opened, it is in the middle of being poured out. It was easily blocked, and it took a long time to refill, or the spout could not be opened properly, causing the liquid to spill.

In order to prevent the spout from being easily closed, Japanese Patent Laid-Open No. 72260/72260 discloses a refillable pouch (bag) in which a linear reinforcing mechanism formed by deforming a film is formed at the spout. Has been proposed. However, since this refill pouch has a linear reinforcing mechanism of the same shape and the same size formed in the same position on the front and back side wall films in the front and back sides, the opening effect is not sufficient, and in some cases, the opening effect is not sufficient. Occasionally obstructed.

In order to solve such a drawback, Japanese Patent Laid-Open Publication No. 2000-128192 discloses a refillable pouch (bag) in which reinforcing portions are formed asymmetrically in the pouring direction on the front and back side wall films. Proposed. However, this refillable pouch is effective when the diameter of the spout is 20 mm or more, but may be blocked when the diameter is 20 mm or less.

[0006]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned drawbacks of the prior art, in which even if the diameter of the spout is small, the content liquid can be stably discharged without clogging. An object of the present invention is to provide a refill pouch in which a spout can be easily deformed.

[0007]

To solve the above problems, the present invention employs the following means. That is,
The refill pouch of the present invention is a bag formed by laminating at least two side wall films made of synthetic resin, and a spout that projects in a predetermined direction is formed at an appropriate position on a peripheral portion of the bag. A liquid outlet channel of a predetermined length having a convex cross section along the center line in the projecting direction of the spout is formed up to or near the spout, and a cross-sectional convex portion near the side of the liquid outlet channel. A reinforcing portion having a shape of a circle is formed.

It is preferable that the reinforcing portion is asymmetrical on the front and back, and the asymmetrical reinforcing portion is formed on both sides of the liquid outlet path so as to be line-symmetric with respect to the center line in the projecting direction of the spout. Further, it is preferable that the planar shape of the reinforcing portion is a linear shape having a predetermined length. Furthermore, it is more preferable that the inclination angle θ of the reinforcing portion to be linear with respect to the center line in the projecting direction of the spout is in the range of 10 ° to 60 °.

[0009] In the case of the refill pouch having the above structure, when the refill pouch is tilted to start dispensing the content liquid, the liquid outlet path formed along the center line of the spout in the protruding direction is greatly pushed open, and the content liquid is opened. Is formed with a large opening area for guiding the water to the spout. The liquid outlet path is reinforced by the front and back asymmetric reinforcing portions formed on the sides of the liquid outlet path, and the pressure at the time when the content liquid flows out while hitting the reinforced portion, including the liquid outlet path. Acts to push the whole mouth further outward. For this reason, even if the diameter of the spout is small, the spout is not easily blocked, and the content liquid can be stably discharged.

When the reinforcing portions are formed on both sides of the liquid outlet passage, the reinforcing effect can be further ensured. Also, when the planar shape of the reinforcing portion is formed in a straight line, the content liquid can be guided smoothly along the linear portion, and the content liquid can be poured out more smoothly. Further, when the angle of inclination of the spout of the straightened reinforcing portion with respect to the center line in the projecting direction is in the range of 10 ° to 60 °, the above effect can be most effectively exerted.

The planar shape formed by the liquid outlet passage and the reinforcing portion is substantially Y-shaped on one of the front and back sides, and the planar shape of the reinforcing portion on the other surface is substantially C-shaped. Alternatively, the same effect as described above can be obtained even if the reinforcing portion on one surface side is formed in a substantially spade shape, the reinforcing portion on the other surface side is formed in a substantially rhombic shape, and the reinforcing portion is formed in a substantially spade shape symmetrical on both sides. Can be obtained.

In order to sufficiently exhibit the effects of the present invention, the liquid to be stored in the refill pouch has a viscosity of 3 to 3.
It is preferable to employ one having a range of 5000 mP · s.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show a first embodiment of a refill pouch according to the present invention. 1 is a front view of the refill pouch according to the first embodiment, FIG. 2 is a schematic enlarged cross-sectional view taken along a line AA in FIG. 1, and FIG. 3 is a view taken along a line BB in FIG. It is a schematic enlarged sectional view.

In the drawing, a refill pouch (hereinafter, referred to as a pouch)
The pouch 1 is a bag-like shape obtained by laminating the side wall films 2 and 2 'made of a soft synthetic resin such as polyethylene and the bottom wall film 3 and fixing the peripheral edge thereof by a method such as heat fusion. And the inside thereof is formed as a storage section 4 for storing a liquid. When the pouch 1 accommodates a liquid in the accommodating portion 4, the bottom wall film 3 is pushed open and becomes self-supporting.

A spout piece 5 projecting obliquely upward from the edge is formed at the upper end corner of the pouch 1. When the content liquid is used, the tip of the spout piece 5 is cut along the cut line 6. By cutting out, a spout 7 for the content liquid is formed.

On the side wall film 2 on the front side and the side wall film 2 'on the back side, there are formed liquid outlet passages 8 and 8' each having a convex section and facing the spout 7 at the front end thereof. The front and back liquid outlet passages 8 and 8 ′ are formed obliquely downward along the center line XX of the spout 7 in the projecting direction, and intersect with the horizontal center line YY of the pouch 1. At the center of the pouch 1 and extends to the vicinity of a substantially central portion of the pouch 1 in the vertical direction. The front and back liquid outlet passages 8 and 8 ′ form a passage having a large opening area for guiding the content liquid to the spout 7.

On both sides of the liquid outlet passage 8 on the front side, two reinforcing portions 9, 9 are provided near the spout 7, and two spouts 9 are provided.
Are formed line-symmetrically with respect to the center line XX of the projecting direction. The reinforcing portions 9, 9 are formed into a linear shape having a predetermined length and a convex cross section, and are formed so as to be inclined by an angle θ with respect to a center line XX of a direction in which the spout 7 protrudes.

On the other hand, on both sides of the liquid outlet passage 8 'on the back side, linear reinforcing portions 9 having a predetermined length and having a convex cross section are provided at positions overlapping with the two reinforcing portions 9 on the front side, respectively. ', 9' are formed symmetrically with respect to the center line XX of the spout 7 in the projecting direction. The back side reinforcements 9 ', 9' are inclined by an angle θ in the opposite direction to the front side reinforcements 9, 9, respectively, and intersect with the front side reinforcement 9 in a cross shape, that is, They are arranged so that they are asymmetrical. In addition, the inclination angle θ of the front and back reinforcing portions 9 and 9 ′ is preferably in the range of 10 ° to 60 °.
In the illustrated example, it was formed at θ = about 23 °.

According to the pouch 1 according to the first embodiment, when the pouch 1 is tilted to start discharging the content liquid, the flowing content liquid is guided to the liquid discharge paths 8, 8 'and poured. The liquid that reaches the mouth 7 and the liquid that flows out pushes and opens the entire spout including the liquid outlets 8 and 8 ′. Further, at this time, the reinforcing portions 9, 9 'on the front and back sides are formed so as to intersect in a cross-shaped manner on both sides of the liquid outlet passages 8, 8'. The entire spout 7 including the outlet paths 8, 8 'is reinforced, and the content liquid flows while hitting the reinforcing portions 9, 9', so that the content liquid flows out in a turbulent state. Due to this turbulent pressure, the entire spout 7 including the liquid outlet passages 8 and 8 'is pushed outward. For this reason, even when the diameter of the spout 7 is small, the spout is not easily closed, and the content liquid can be stably poured.

The liquid outlet passages 8, 8 'and the reinforcing portions 9, 9'
Can be formed by processing the side wall films 2 and 2 'by embossing or the like, and the deformation processing is extremely easy. Therefore, it is suitable for mass production and can be manufactured at low cost.

In the above-described embodiment, the linear reinforcing portions 9 and 9 'are employed. However, the shape of the reinforcing portion is not limited to a linear shape. Other shapes can be employed. Further, only one pair of the asymmetrical reinforcing portions 9, 9 'are formed on both sides of the liquid discharge passages 8, 8' in line symmetry, but a plurality of pairs may be formed on both sides, or only one side may be formed. One or more may be formed.

The cross-sectional shape of the reinforcing portions 9 and 9 'is not limited to the arc shape shown in the drawing, but may be a convex cross-section having another shape such as a triangular shape or a square shape. Also, the cross-sectional shape of the liquid outlet passages 8, 8 'is not limited to an arc shape,
Other shapes can be used. Furthermore, although the pouch 1 in the illustrated example is a self-standing type using the bottom wall film 3, a pouch of a lay-down type without the bottom wall film 3 may be used.

FIGS. 4 to 7 show the second embodiment of the pouch according to the present invention.
An embodiment will be described. 4 is a front view of the pouch according to the second embodiment, FIG. 5 is a schematic enlarged cross-sectional view taken along a line CC in FIG. 4, and FIG. 6 is a schematic view taken along a line DD in FIG. FIG. 7 is an enlarged cross-sectional view schematically illustrating a position taken along line EE in FIG. The same or equivalent parts as those in the first embodiment are denoted by the same reference numerals, and the detailed description is omitted.

In the case of the pouch 1 according to the second embodiment, the side wall film 2 on the front side is located on the center line XX of the spout 7 in the projecting direction and has a convex section having a predetermined length. In addition to forming the liquid lead-out passage 10 also serving as a linear reinforcing portion, the liquid lead-out passage 10 is located at the tip end thereof,
Reinforcing portions 11, 11 each having a cross-sectional convex shape, which are separated into two forks from the front end portion, are formed. The liquid outlet channel 10 and the reinforcing portions 11, 11 also serve as a liquid outlet channel having a substantially “Y” shape as a whole. A reinforcement portion is formed.

On the other hand, in the side wall film 2 'on the back side, a linear reinforcing member having a "C" shape having a predetermined length with a convex cross section is provided at a position overlapping with the forked reinforcing portions 11, 11 on the front side. The portions 12, 12 are formed so as to intersect with the front-side bifurcated reinforcing portions 11, 11 in a cross shape.

According to the pouch 1 according to the second embodiment, when the pouch 1 is tilted and the discharge of the content liquid is started, the flowing content liquid flows along the liquid outlet path 10 also serving as a reinforcing portion. It flows toward the spout 7. In the middle of the flow, the liquid contents are contained in the reinforcing portions 11, 11 on the front side divided into two branches and the reinforcing portions 12, 12 on the rear side intersecting the forked reinforcing portions 11, 11 in a cross shape. Are stirred and become turbulent, and the whole of the spout 7 is pushed outward. For this reason, even if the diameter of the spout 7 is small, the spout is not easily closed, and the content liquid can be stably poured.

In the case of the second embodiment, a through hole is formed in the right edge portion (in FIG. 4) of the pouch 1 so that the pouch 1 can be stably held at the time of the pouring operation or the carrying operation. Is formed.

FIGS. 8 and 9 show a third embodiment of the pouch according to the present invention. FIG. 8 is a front view of a pouch according to the third embodiment, and FIG. 9 is a schematic enlarged cross-sectional view taken along a line FF in FIG. The same or equivalent parts as those in the first embodiment are denoted by the same reference numerals, and the detailed description is omitted.

In the case of the pouch 1 according to the third embodiment, similarly to the first embodiment, the front side wall film 2
Into the side wall film 2 'on the back side,
Are formed, and the liquid outlet passages 8, 8 'having a convex cross section are formed. At the front end of the liquid outlet passage 8 of the front side wall film 2, a reinforcing part 13 having a substantially spade-shaped cross section and a convex cross section is formed near the pouring opening 7, and the side wall film on the back side is formed. A reinforcing portion 14 having a substantially rhombic shape in plan view and having a convex cross section is formed at the tip end of the liquid outlet passage 8 'of 2' near the pouring opening 7.

According to the pouch 1 according to the third embodiment, when the pouch 1 is tilted and the discharge of the content liquid is started, the content liquid flowing out is guided to the liquid discharge paths 8, 8 'and poured. When the liquid reaches the mouth 7, the liquid that flows out pushes the entire spout including the liquid outlets 8, 8 '. Further, at this time, at both sides of the liquid outlet passages 8 and 8 ', the content liquid is stirred in the front and back spade-shaped reinforcing portions 13 and the rhombic reinforcing portions 14 to be in a turbulent state, and the whole of the spout 7 is outward It is spread toward. For this reason, even when the diameter of the spout 7 is small, the spout is not easily closed, and the content liquid can be stably poured.

FIGS. 10 and 11 show a fourth embodiment of the pouch according to the present invention. FIG. 10 is a front view of a pouch according to a fourth embodiment, and FIG. 11 is a schematic enlarged sectional view taken along a line GG in FIG. Note that the first
The same reference numerals are given to the same or equivalent parts as those of the embodiment, and the detailed description is omitted.

In the case of the pouch 1 according to the fourth embodiment, similarly to the first embodiment, the front side wall film 2
Into the side wall film 2 'on the back side,
Are formed, and the liquid outlet passages 8, 8 'having a convex cross section are formed. At the front end of the liquid outlet passage 8 of the front side wall film 2, a reinforcing portion 15 having a substantially spade-shaped cross-sectional convex shape in a plan view is formed near the spout 7, and the back side wall film 2 is formed. A reinforcing portion 15 ′ having the same shape as the reinforcing portion 13 on the front side and having a substantially rhombic shape in a plan view and having a convex cross section is also formed at the tip of the liquid outlet passage 8 ′ of 2 ′.

According to the pouch 1 according to the fourth embodiment, when the pouch 1 is tilted to start the discharging of the content liquid, the flowing content liquid is guided to the liquid outlet paths 8, 8 'and poured. When the liquid reaches the mouth 7, the liquid that flows out pushes the entire spout including the liquid outlets 8, 8 '. Further, at this time, the content liquid flowing out in the spade-shaped reinforcing portions 15 and 15 'on the front and back of the liquid outlet passages 8 and 8' is stirred, and the entire spout 7 is pushed outward.
For this reason, even if the diameter of the spout 7 is small, the spout is not easily closed, and the content liquid can be stably poured.

[0034]

EXAMPLE A pouch 1 having the shape shown in FIG. 1 was filled with a liquid detergent having a composition of Table 1 below and having a viscosity of 100 to 300 mPa · s, and then the liquid detergent was poured into a self-supporting hard container and refilled. Was performed and the ease of refilling was evaluated, and the spout 7 was not blocked at all.
Refill was stable.

[0035]

[Table 1]

The abbreviations in Table 1 are as follows. Nonionic surfactant 1; a linear primary alcohol having a carbon chain of 12 and an average of 2 mol of ethylene oxide added thereto (narrow ratio: 93%); nonionic surfactant 2: linear primary of a carbon chain 12 Alcohol with an average of 5 mol of ethylene oxide added thereto (narrow ratio: 42%), Nonionic surfactant 3; Dovanol 23 (manufactured by Mitsubishi Chemical Corporation) with an average of 5 mol of ethylene oxide added (narrow ratio: 86) %), Nonionic surfactant 4; Diadol 1
No. 3 (manufactured by Mitsubishi Chemical Corporation) with an average of 15 moles of ethylene oxide added (narrow ratio: 33%), fatty acid 1: palmitic acid, fatty acid 2: hardened tallow fatty acid (Riptor CY-1000: manufactured by NOF Corporation) Fatty acid 3; oleic acid (extra olein 99: manufactured by NOF Corporation), enzyme 1; Savinase 16L (manufactured by NOVO Nordisk), enzyme 2; Everlase 16l (manufactured by NOVO Nordisk), polyethylene glycol; Dye: LANASOL Yellow 4G (Ciba Specialty Chemicals Co., Ltd.), B;

Narrow ratio: The ratio of the total content of the nonionic surfactant in the range of ± 2 mol before and after the average number of moles of ethylene oxide added to the total mass of the nonionic surfactant.

The compositions of the fragrances A to D in Table 1 are as shown in Tables 2 to 13 below.

[0039]

[Table 2]

[0040]

[Table 3]

[0041]

[Table 4]

[0042]

[Table 5]

[0043]

[Table 6]

[0044]

[Table 7]

[0045]

[Table 8]

[0046]

[Table 9]

[0047]

[Table 10]

[0048]

[Table 11]

[0049]

[Table 12]

[0050]

[Table 13]

[0051]

As described above, according to the refill pouch of the present invention, even when the diameter of the spout is small, no clogging occurs, and the liquid content in a wide range from low viscosity to high viscosity can be stably obtained. It can be poured out and liquid spillage during refilling can be effectively prevented. In addition, the liquid lead-out passages and reinforcements formed on the front and back side wall films can be easily formed by embossing, etc., and are easy to deform, making them suitable for mass production and without increasing costs. Can be solved.

[Brief description of the drawings]

FIG. 1 is a front view of a first embodiment of a refill pouch according to the present invention.

FIG. 2 is a schematic enlarged sectional view taken along a line AA in FIG.

FIG. 3 is a schematic enlarged sectional view taken along a line BB in FIG. 1;

FIG. 4 is a front view of a second embodiment of a refill pouch according to the present invention.

FIG. 5 is a schematic enlarged sectional view taken along a line CC in FIG. 4;

FIG. 6 is a schematic enlarged sectional view taken along a line DD in FIG. 4;

FIG. 7 is a schematic enlarged sectional view taken along a line EE in FIG. 4;

FIG. 8 is a front view of a third embodiment of a refill pouch according to the present invention.

FIG. 9 is a schematic enlarged sectional view taken along a line FF in FIG. 8;

FIG. 10 is a front view of a fourth embodiment of a refill pouch according to the present invention.

11 is a schematic enlarged sectional view taken along a line GG in FIG. 11;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Refill pouch 2 Front side wall film 2 'Back side wall film 3 Bottom wall film 4 Housing part 5 Spout piece 6 Cutting line 7 Spout 8 Front side liquid outlet 8' Back side liquid outlet 9 Front reinforcing part 9 Backside Reinforcement Section 10 Front Side Liquid Lead-Out Path 11 Front Side Reinforcement Section 12 Backside Reinforcement Section 13 Front Side Reinforcement Section 14 Backside Reinforcement Section 15 Front Side Reinforcement Section 15 ′ Backside Reinforcement Section 16 Handle Section θ Inclined Reinforcement Section angle

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Hiroyuki Kato 3-7-0 Honjo, Sumida-ku, Tokyo F-term in Lion Corporation (reference) 3E064 AA05 AA14 BA21 FA04 GA04 HF10 HG02 HM01 HP02 HS10

Claims (7)

[Claims] 1. A bag formed by laminating at least two side walls made of synthetic resin, wherein a spout is formed at an appropriate position on a peripheral portion of the bag body so as to project in a predetermined direction. A liquid outlet channel of a predetermined length having a convex cross-section along the center line in the projecting direction of the spout is formed up to or near the spout, and a cross-sectional convex portion is formed near the side of the liquid outlet channel. A pouch for refilling, wherein a reinforcing portion is formed. 2. The refillable pouch according to claim 1, wherein the reinforcing portion is formed asymmetrically on both sides. 3. The refill according to claim 2, wherein the asymmetric reinforcing portions are formed on both sides of the liquid outlet passage and are formed line-symmetrically with respect to a center line in a projecting direction of the spout. For pouch. 4. The refillable pouch according to claim 2, wherein a planar shape of the reinforcing portion is a straight line having a predetermined length. 5. The refillable pouch according to claim 3, wherein an inclination angle of the linear reinforcing portion with respect to a center line in a projecting direction of the spout is in a range of 10 ° to 60 °. 6. The planar shape formed by the liquid outlet channel and the reinforcing portion is substantially “Y” on one of the front and back sides, and the planar shape of the reinforcing portion on the other surface is substantially “C” -shaped. 3. The refill pouch according to claim 2, wherein: 7. The refill pouch according to claim 2, wherein the reinforcing portion has a substantially spade shape on one of the front and back surfaces and a substantially rhombus on the other surface.