JP2000085801A - Refilling pouch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refilling pouch that is easily processed for bag-making and convenient for being filled with contents while being excellent in capacity of self-standing and shape-keeping and conveniently adaptable on use for forming automatically an opening being stable in keeping shape only by unsealing a part for pouring without a fear of being closed during pouring and capable of transferring contents safely and easily to the last. SOLUTION: A refilling pouch 100 formed in a shape of standing pouch is constructed in a structure wherein a pouring part 6, being heat-sealed at its periphery and facing diagonally upward, is formed at a corner of the upper part with notches 7a and 7b provided at both sides thereof, and a curved line- shaped bulged part C being planate at its upside and both of its side faces while being trapezoidal shape at its section is provided at least at a wall face film 5 on one side of the pouch 100, extending from the pouring part 6 to a position being opposite thereto and close to the pouch bottom corner, so that the bulged part is set large at its width and the height at the pouring part 6 while being tapered off gradually toward a diagonally downward position and approximately fixed at its width and height at the lower part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refill pouch in which contents having fluidity such as a liquid are hermetically packaged, and the contents are transferred to another container at the time of use. A narrow spout is provided at the corner of the top of the pouch so that it can be safely and easily transferred to small containers such as bottles. And a pouch for refilling with improved shape retention.

[0002]

2. Description of the Related Art Conventionally, standing pouches which are self-supporting and have some of the features of a three-dimensional container are mainly used as refill pouches for hermetically packaging contents having fluidity such as liquid, and , So that the contents can be safely transferred to another container when opened, without spilling the contents.
The opening is formed by cutting out a part such as a corner instead of the entire upper part of the pouch, or a method of providing a narrower spout part in a part of the upper part of the pouch, and further, a separate part such as a plastic molded product. The method of attaching the spout to the upper part of the pouch by heat bonding was adopted.

[0003]

However, although the method of forming the opening of the pouch by cutting a part such as a corner portion, not the whole upper part of the pouch, is simple,
The pour direction of the contents is difficult to stabilize, especially when the container to be transferred is a small-diameter container such as a bottle. There was a problem in terms of ease of transfer and safety in some cases.

In addition, a method of attaching a separate spout made of a plastic molded article to a part of the upper part of the pouch requires an additional manufacturing process and costs for the spout itself. Due to the increase in thickness, the cost of storage and transportation is also expensive, and even when filling the contents, for example, the number of empty pouches loaded into the feeder section of the filling machine is greatly reduced, so the operator frequently There is a problem that the cost is increased as a whole and the complexity of the process and the operation is increased, such as the necessity of supplying an empty pouch.

[0005] The operability and safety when transferring the contents to another container can be improved to some extent by the method of providing a narrow spout at a part of the upper part of the pouch.
When pouring out the contents, the mouth of the spout is difficult to open, and the flow is not stable during pouring, especially when the remaining amount is low, the spout of the pouch is easy to close, and the pouch is compressed. When pushed out, the contents could jump out and spill outside, and there was still a problem in terms of ease of transfer and safety.

The present invention has been made in order to solve such a problem, and an object of the present invention is to eliminate the necessity of a separate spout for a molded product or the like, and to provide a similar pouch as a normal pouch. It can be manufactured with high productivity in the process, the contents can be easily filled, and at the time of use, simply cut off the tip of the spout provided at the corner of the top of the pouch, the mouth of the spout opens easily, It has good shape retention, does not block the spout during pouring, and can be safely and easily transferred to the end even for small-diameter bottles. An object of the present invention is to provide a refillable pouch excellent in suitability with high productivity.

[0007]

The above objects can be attained by the present invention described below. That is, the invention described in claim 1 is a standing pouch-type pouch in which the contents having fluidity are hermetically sealed and packaged, and an outer periphery, that is, a tip portion, both sides are provided at an upper corner portion of the pouch. Part, both shoulders are heat-sealed, and a spout having a shape facing obliquely upward is provided, and notches are provided on both sides of the spout, and at least one wall film of the pouch is The width and height are large at the spout portion, and the width and height gradually decrease diagonally downward from the spout portion to a position near the corner of the pouch bottom opposite to the spout portion. The curved bulging portion having a substantially constant width and height is provided such that its upper surface and both side surfaces are respectively planar, that is, the cross section of each portion is provided in a trapezoidal shape. Refill pow Consisting of.

By adopting such a configuration (see FIGS. 1 and 2), the pouch is of a standing pouch type, so that it is self-supporting, easy to handle, and excellent in appearance. And, at the corner of the upper part of the pouch, there is provided a spout portion facing obliquely upward, and a cutout portion is provided on both sides thereof, so that the spout portion protrudes obliquely upward. Is formed. Therefore, when transferring the contents filled in the pouch to another container such as a bottle, the tip of the spout is cut off and opened, the spout is inserted into the mouth of the bottle, for example, and the side of the spout is removed. The contents can be poured out by applying the notch to the mouth of the bottle, so that during pouring, the spout is stably fixed to the mouth of the bottle, and the contents can be safely transferred. it can.

[0009] At least one wall surface film of the pouch has a large width and a high height in the spout from the spout to a position near the corner of the bottom of the pouch opposite to the spout. The width and height gradually decrease toward the bottom, and a curved bulge having a substantially constant width and height is formed in the lower part so that the upper surface and both side surfaces are planar, that is, the bulge is formed. Each section is provided in a trapezoidal cross section. Therefore, by simply cutting off and opening the tip of the spout, the swelling portion automatically opens the spout with good shape retention, and further, after opening, the swelling portion of the middle portion is opened by the force of the contents. Since the inside of the pouch is open outward from the vicinity of the center of the pouch to the spout from the center of the pouch, the contents can flow smoothly to the spout, The contents can be safely and easily transferred to the end without closing the spout.

The lower portion of the bulging portion has a small width and height and is substantially constant, and has a shape close to vertical, so that it has a rib effect and improves the form stability and self-sustainability of the pouch. . Furthermore, since the entire bulge portion is formed so that its upper surface and both side surfaces are respectively planar, that is, the cross-section of each portion is formed in a trapezoidal shape, it has a strong resistance to compression and is excellent in shape retention. Therefore, the action and effect are more effectively exhibited. As described above, the bulging portion provided on the wall film of the pouch improves the natural opening property of the spout portion and its shape retention at the upper portion, that is, in the vicinity of the spout portion, and the middle portion allows the content to be poured. The lower portion has the function and effect of improving the shape stability and the self-sustainability of the pouch, with the function of a guiding portion that smoothly flows to the outlet portion.

According to a second aspect of the present invention, there is provided a standing pouch-type pouch in which a fluid content is hermetically sealed and packaged, and an outer periphery, that is, a tip is provided at an upper corner of the pouch. Part, both side parts, a spout part having a shape facing obliquely upward formed by heat-sealing both shoulder parts is provided, and notches are provided on both sides of the spout part, and further, at least one of the pouches is provided. On the wall film, from the spout to the position near the center of the pouch,
Alternatively, the spout bends in a V shape near the center of the pouch from the spout, and the width and height are large at the spout, leading to a position near the corner of the upper pouch opposite to the spout. In the tail-shaped portion, the bulging portion having a reduced width and height is provided so that its upper surface and both side surfaces are each planar, that is, the cross section of each portion is provided in a trapezoidal shape. It is a refill pouch.

In the refill pouch according to the first aspect of the present invention, the bulge formed on the wall surface film, particularly the bulge of the spout, is formed on the body of the pouch. The shape of the bulging portion is changed, and shows a variation of the shape of the bulging portion. Accordingly, the bulge provided on the wall film of the pouch is extended from the spout (see FIG. 3) to a position near the center of the pouch, and the spout has a large width and height, and a tail-like shape is connected to this. In the part, the width and height are small, and the upper surface and both side surfaces are respectively planar, that is, when the cross section of each part is provided as a trapezoid, the bulge near the outlet is Improves the natural opening property of the spout and its shape retention, and the tail-shaped part connected to this breaks out when the contents are poured out, and the pouch is expanded outward, so the contents are removed from the spout. It has the function of a guiding part that makes the fluid flow smoothly.

Further, the bulging portion is bent in a V-shape near the center of the pouch from the spout of the pouch (see FIG. 4) and is positioned near the corner of the upper portion of the pouch opposite to the spout. The width and height are large at the exit part, and the width and height are small at the tail-like part connected to it, and the upper surface and both side surfaces are respectively planar, that is, the cross section of each part is trapezoidal In such a case, the bulging portion near the spout portion improves the natural opening property of the spout portion and its shape retention as described above, and the V-shaped tail-shaped bulging portion connected to the bulging portion is formed by a pouch. Before opening the bag, the deaeration seal at the time of filling the contents substantially matches the shape of the crease generated on the upper part of the pouch, and thus has the effect of stabilizing the form of the pouch and improving the appearance. . Further, the V-shape is preferable in that the left and right balance can be obtained and the unnaturalness in appearance due to the bulging portion can be reduced. After opening the spout, air enters into the pouch, and the volume and weight of the content causes the V-shaped bulging portion to bend and the pouch to be spread outward. It has the function of flowing smoothly to the outlet. The configuration of the pouch other than the bulging portion is the same as the refill pouch of the invention described in claim 1,
Since the operation and effect are the same, the description is omitted.

According to a third aspect of the present invention, the shoulder line on both sides of the spout portion and the inner line of the heat seal portion on the side are formed as follows.
Each taper toward the tip of the spout 2
The pouch for refilling according to claim 1, wherein the pouch is formed in a shape having a step inclination.

By adopting such a configuration, in addition to the functions and effects of the invention described in claim 1 or 2,
When opening the spout and discharging the contents, not only the inner lines of the heat seals on both sides of the spout, but also both shoulders, both shoulders should be at right angles to the center line of the spout. Since it can be raised in a C-shape at a small angle, the angle of the wrinkles generated toward the tip direction on both sides of the spout by internal pressure is reduced, and it can be opened at a longer distance, Blockage of the spout can be more effectively prevented.

According to a fourth aspect of the present invention, there is provided the refillable pouch according to any one of the first to third aspects, wherein an easy-opening means is provided at the spout.

The easy-opening means may be a notch commonly used in ordinary pouches, a half-cut line by laser light irradiation, or a method of laminating a uniaxially stretched film in a laminated film of a pouch (in this case, a uniaxially stretched film). The stretched film is used so that the stretching direction coincides with the opening direction of the spout portion). These may be used alone, or, for example, a lamination of a notch, a half-cut line or a uniaxially stretched film. It can also be used in combination as appropriate, such as. When the half-cut line is provided, the half-cut line is not limited to a linear half-cut line, and may be provided by an intermittent half-cut line such as a perforated line. Also, such a half-cut line may be one, but assuming that the tearing direction is shifted, a plurality of half-cut lines such as one each or two each on both sides of the center half-cut line. Can be provided in parallel.

In particular, in the refill pouch of the present invention, since a bulging portion is provided at the opening position of the spout, the directionality of the tear is likely to be unstable, and as described above, the easy-opening means is combined. It is more preferable to use them. still,
As the notch, a one-shaped or V-shaped notch is usually used, but the shape is not particularly limited, and any shape having an acute angle portion in a cutting direction can be used.

By adopting such a configuration, in addition to the functions and effects of the invention according to any one of claims 1 to 3, it is possible to use a tool such as scissors when opening the spout. The tip of the spout can be easily cut off at a desired position with only the hand to open the spout, whereby the spout is automatically opened with good shape retention.

According to a fifth aspect of the present invention, in the pouch for refilling according to the fourth aspect, the easy-opening means is provided by a combination of a notch and a half-cut line by laser light irradiation. is there.

By adopting such a configuration, in addition to the functions and effects of the invention described in claim 4, as described above, even if the swelling portion is provided at the spout, the desired position, That is, the tip of the spout can be reliably and easily cut off at the position of the half-cut line to open the spout.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments such as a film used for manufacturing a refill pouch of the present invention and a method for manufacturing a pouch will be described below. The film used for producing the refill pouch of the present invention is mainly a laminated film mainly composed of plastics, but is not particularly limited, for example, a known laminated film used for various liquid pouches, Either can be used. From these, suitable ones can be freely selected and used according to the use conditions such as the type of contents to be packaged and the presence or absence of heat treatment after filling. As a representative example of the configuration of the laminated film that can be preferably used, the following configuration can be given.

(1) ON film / adhesive / L·LDPE
Film (sealant layer) (2) ON film / adhesive / uniaxially stretched HDPE film / adhesive / L·LDPE film (sealant layer) (3) ON film / adhesive / uniaxially stretched PP film / adhesive / L·LDPE Film (sealant layer) (4) ON film / adhesive / uniaxially stretched PP film / adhesive / aluminum foil / adhesive / L / LDPE film (sealant layer) (5) ON film (silica vapor deposition layer) / adhesive / Uniaxially stretched HDPE film / adhesive / L-LDPE film (sealant layer) (6) ON film / anchor coat layer / co-extrusion coat layer (HDPE layer / L-LDPE layer) (sealant layer is L-LDPE layer) (7) ) ON film / anchor coat layer / coextrusion coat layer (HDPE layer / LDPE layer) / adhesive / L-LDP
E film (sealant layer) (8) PET film / adhesive / aluminum foil / adhesive / ON film / adhesive / L / LDPE film (sealant layer) (9) PET film / adhesive / aluminum foil / adhesive / ON film / adhesive / CPP film (sealant layer) (10) PET film / adhesive / ON film / adhesive /
Aluminum foil / adhesive / L / LDPE film (sealant layer) (11) PET film / adhesive / ON film / adhesive /
Aluminum foil / adhesive / CPP film (sealant layer) (12) PET film / adhesive / EVOH film / adhesive / ON film / adhesive / CPP film (sealant layer) Instead, various combinations of laminated films can be used.

In the above, the ON film is a biaxially stretched nylon film, the L / LDPE is a linear low density polyethylene, the HDPE is a high density polyethylene, the LDPE is a low density polyethylene, the PP film is a polypropylene film, and the PET film is biaxially stretched. A polyethylene terephthalate film and an EVOH film indicate a saponified ethylene-vinyl acetate copolymer film, and a CPP film indicates a non-stretched polypropylene film. In addition, the anchor coat is a kind of primer coat that is previously coated on the base film side in order to improve adhesiveness when laminating a resin by extrusion coating.

In the construction of the laminated film, ON
Films and PET films are used as base films to impart mechanical strength and printability to pouches,
The film and the uniaxially stretched PP film can further stabilize the tearing direction by using the stretching direction to coincide with the tearing direction when opening the spout of the pouch, or as much as possible. . Then, an aluminum foil, a silica vapor-deposited layer, an EVOH film, and the like are laminated to provide gas barrier properties. Also, as the sealant layer, two examples of the L·LDPE film and the CPP film have been described.
LDPE films are excellent in heat sealing stability and content resistance, such as stress cracking resistance to surfactants, and CPP films are excellent in heat resistance and low odor. Suitable for packaging of goods.

In the sealant layer, in addition to the above, depending on the content to be filled, ethylene / α-olefin copolymer, ethylene / vinyl acetate copolymer, ethylene / acrylic acid copolymer, ethylene / acrylic ester copolymer may be used. Polymers, ionomers, polyester resins and the like can also be appropriately selected and used.

In particular, an ethylene / α-olefin copolymer obtained by polymerization using a single-site catalyst such as a metallocene catalyst has a narrow molecular weight distribution and a stable copolymerization ratio. It is excellent in hot sealability, and is suitable for a sealant layer of a pouch having a step due to a difference in film overlap with a heat seal portion such as a standing pouch in that the occurrence of pinholes due to seal missing can be prevented. . Furthermore, by using a blend of the copolymer and an olefin elastomer, the heat fluidity of the sealant layer is improved, and the generation of pinholes due to the steps can be more effectively prevented.

Next, a method for manufacturing the refill pouch of the present invention, which is manufactured using the above-described laminated film, will be described. The refill pouch of the present invention has a main body part of a standing pouch type, and thus can be manufactured basically using a conventional bag making machine for a standing pouch.

However, it differs from a normal standing pouch in that the following configuration is added. A spout is provided at the corner of the upper part of the pouch. Notches are provided on both sides of the spout. Further, an easy-opening means is provided at the spout as required. The point is that bulges of various shapes are provided on the wall surface film of the pouch from the pouring port to the main body of the pouch.

Therefore, a processing device for providing the additional components described in the above items, ie, a trimming device for providing a spout portion, a cutout portion, etc., addition or partial change of a heat sealing device, and a pouch In order to provide a curved bulge on the wall film, for example, an embossing device, and further, a laser beam irradiation device for providing a half-cut line is incorporated into the standing pouch bag making machine, or a part of the line is formed on a separate line. By preparing as, it can be easily manufactured.

The bulging height of the bulging portion provided on the wall surface film is not particularly limited, but is preferably about 1 to 7 mm at the spout, and 2 to 7 mm.
About 5 mm is more preferable. When the height is less than 1 mm, the effect on the natural opening property is reduced, and the height is 7 mm.
If the height exceeds, it is not necessary, and the processing itself becomes difficult, and at the same time, the spout becomes bulky, and the handling of empty bags, the suitability for loading in a filling and sealing machine, and the like are not preferred.

The height of the portion other than the spout of the bulging portion is
For example, in the case of the refill pouch according to the first aspect of the present invention, it is possible to lower the width to about 2 to 0.8 mm by inclining the middle part where the width is gradually narrowed obliquely downward from the spout. it can. In particular, the shape of the lower part of the bulge is
The width of the rising portion is 3 to 4 mm, and the width of the upper surface is 1 to 2.5
A trapezoid having a height of about 1.5 to 2 mm is suitable. Further, in the case of the refill pouch of the invention described in claim 2, the bulging portion of the spout is the same as described above, but the bulging portion of the tail portion connected to the bulging portion of the pouring portion is As in the case of the lower part, the width of the rising part is 3
~ 4mm, top width is 1 ~ 2.5mm, height is 1.5 ~
A trapezoidal shape of about 2 mm is appropriate.

[0033]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below more specifically with reference to the drawings. However, the present invention is not limited to these drawings. FIG. 1 shows the first refill pouch of the present invention.
FIG. 2 is a front view showing the configuration of the embodiment. And FIG.
It is a figure which shows the cross-sectional shape in the AA line and the BB line of the bulging part provided in the wall surface film of the pouch for refilling shown in FIG. 1, (a) of (1) shows the bulging part with one wall surface. FIG. 4 is an enlarged cross-sectional view taken along the line AA when the film is provided on the film. FIG.
(A) of (2) is an enlarged cross-sectional view taken along the line BB when a bulge is provided on one wall film, and (b) of (2) is a bulge FIG. 7 is an enlarged cross-sectional view taken along line BB in the case where is provided on a wall film on both sides.

In FIG. 1, pouch 100 for refilling
Is formed in a standing pouch format, and the bottom portion 1 is formed in a gusset format in which the film is folded inward according to a conventional method. A cutout portion having a shape is provided, and is formed by heat sealing with a bottom heat seal portion 2 having a boat bottom shape. The body of the pouch 100 is formed by heat-sealing both side edges of the front and rear two wall films 5 with the body heat seal portion 3.

At the upper corner of the pouch 100, a spout 6 which is directed obliquely upward is formed in a protruding shape.
The cutouts 7a and 7b on both sides are provided by trimming, and the outer periphery thereof, that is, the front end portion 11, the side portions 12 on both sides, and the shoulder portion 13 are formed by heat sealing. Also,
On the right side near the tip of the spout 6, a notch 7a
At the time of trimming, a knob 8 and a V-shaped notch 9 as easy-opening means are provided at the same time. Such a knob 8 and a notch 9 can be provided on both sides of the spout 6.

At the position of the cut line leading to the notch 9, a half-cut line 10 by laser light irradiation is further provided as an easy-opening means. This half-cut line 10 may be one at the center, but in the example shown in the figure,
A total of five half-cut lines are provided on both sides of the central half-cut line in a parallel and close shape. By forming a plurality of half-cut lines 10 in this manner, even if the tear direction is shifted from the center, the half-cut lines 10 are taken over by the adjacent half-cut lines, so that the tear directionality can be further stabilized. .

In the wall surface film 5 of the pouch 100, the width and height of the spout 6 are large (from the spout 6 to a position near the corner of the pouch bottom opposite to the spout 6). C ₁ ), the width and height gradually decrease obliquely downward (C ₂ ), and a curved bulge C that is substantially constant in the lower part (C ₃ ) has upper and lower side surfaces that are planar respectively. , That is, provided so that the cross section is trapezoidal. Such a bulge C
May be provided on only one of the front and rear wall films, but the effect can be further improved by symmetrically providing the wall films on both surfaces so as to overlap at the same position. it can. In FIG. 1, the upper heat seal portion 4 is a portion used as a filling port for the contents, and the heat sealing is performed after the contents are filled.

FIG. 2 is a sectional view of the bulge C provided on the wall film 5 of the refill pouch 100 shown in FIG.
It is a diagram showing a cross-sectional shape along the line and BB line,
(A) of (1) is an enlarged cross-sectional view taken along line AA when the bulging portion is provided only on one wall film, and (1)
(B) is an enlarged cross-sectional view taken along the line AA when the bulging portion is provided symmetrically on the wall film on both sides so as to overlap the same position, and (b) of (2) is a bulging portion. Is an enlarged cross-sectional view taken along the line BB when is provided on one wall film, and (b) of (2) is an enlarged cross-sectional view taken along the line BB when the bulging portion is provided on both wall films. is there.

As shown in FIGS. 2A and 2B, the bulging portion C
Since the upper surface and both side surfaces are formed in a planar shape and the cross-section is formed in a trapezoidal shape, it has a strong resistance to compression and excellent shape retention, and as described above, In the vicinity of the outlet, the natural opening of the spout and its shape retention are improved, facilitating the pouring of the contents.In the middle, the flow of the contents to the spout is facilitated.
The form stability and autonomy of the pouch can be more effectively improved. Further, such a bulging portion can be formed with high productivity by the embossing method.

By adopting the above configuration, the refill pouch 100 filled with the liquid content, and the upper heat seal portion 4 is degassed and sealed, is self-supporting, easy to handle, and has an appearance. In addition to being excellent, when transferring the contents to another container, the tip of the spout 6 is easily picked with a finger 8 with a finger and torn in the direction of the half-cut line 10 so that the notch 9 is used as a starting point. It is easily torn along the half-cut line 10 and the spout 6 can be opened.

The opened pouch 100 passes through the center of the pouch 100 from the spout 6 to the position near the corner of the bottom of the pouch opposite to the spout 6, and the curved pouch 100 is opened. since part C is provided, simply by placing the pouch 100 on a plane, note the outlet portion 6 bulges C _1, automatically opens in a good state of shape retention, also the bulging portion C ₁ Bulging part C _{2 of the} middle part to be connected
However, the contents are spread outward by the volume and weight of the contents, so that the contents flow to the spout port and are smoothly discharged from the spout. And the lower bulge C ₃
Has a substantially constant width and height and a vertical shape, and has a rib effect, so that the pouch 100 is improved in form stability and independence.

When the contents filled in the pouch 100 are transferred to another container such as a bottle, the pouch 1
Since the body of the bottle can be supported by hand, the opened spout can be inserted into, for example, the mouth of the bottle, and the contents can be transferred while the notch 7a or 7b is applied to the mouth of the bottle. The spout has good fixation to the mouth of the bottle, and the spout can be safely and easily transferred to the end even with relatively high viscosity contents without blocking the spout. it can.

FIG. 3 shows a second embodiment of the refill pouch of the present invention.
FIG. 4 is a front view showing the configuration of the third embodiment of the refill pouch of the present invention. In FIG. 3, a refill pouch 200 is shown.
The main part of the refill pouch 10 shown in FIG.
As in the case of the pouch 200, the bag is formed in the form of a standing pouch, and at the upper corner of the pouch 200, a spout 6 extending obliquely upward projects by trimming the cutouts 7a and 7b on both sides. Provided in the shape, its outer periphery,
That is, the front end portion 11, the side portions 12 on both sides, and the shoulder portion 13 are formed by heat sealing.

The shoulder 13 on both sides of the spout 6 and the inner line of the heat-sealed portion on the side 12 are formed in a shape having a two-step slope that tapers toward the tip of the spout. Have been. When trimming the notch 7a on the right side near the tip of the spout 6,
A knob 8 and a V-shaped notch 9 as easy-opening means are provided at the same time. Such a knob 8 and a notch 9 can be provided on both sides of the spout 6.

At the position of the cut line connected to the notch 9,
Further, a half-cut line 10 by laser light irradiation as an easy-opening means is provided. The half-cut line 10 may be a single line at the center, but as shown in the figure, one line at each side of the center half-cut line, or a plurality of lines such as two lines at each side may be provided in parallel. it can. By providing a plurality of half-cut lines 10, such as three or five, even when the tearing direction is shifted from the center half-cut line at the time of opening, the half-cut line is taken over by the adjacent half-cut line. Therefore, the directionality of the tear can be further stabilized.

Then, on the wall surface film 5 of the pouch 200, from the spout 6 to a position near the center of the pouch,
A bulging portion C that bulges outside the pouch is provided. This bulge C has a large width and height at the spout,
The width and height are smaller in the tail-like part that leads to this,
In addition, the upper surface and both side surfaces are provided in a planar shape, that is, each section is provided in a trapezoidal cross section.
In addition, a reinforcing rib 14 for the bulging portion can be provided at a position below the half cut line 10 at the spout of the bulging portion C, if necessary, in order to further enhance the shape retention of the bulging portion. Such a bulging portion C may be provided on only one wall film, or may be provided symmetrically on both wall films. The function and effect of the bulging portion C having the above-described shape will not be described here because it has already been described.

Next, the refill pouch 30 shown in FIG.
0 is the same as the refill pouch 200 shown in FIG. 3 and the structure of the main body portion is the same as the refill pouch 100 shown in FIG. 1 and only the pattern of the bulging portion C provided on the wall film 5 is changed. It is configured as follows. In this case, the bulging portion C is, as shown in FIG.
From the vicinity of the center of the pouch, bent from here into a V-shape and provided near the corner near the top of the pouch on the opposite side of the spout, and the width and height of the spout are large. The width and height of the V-shaped tail portion connected to are reduced, and the upper surface and both side surfaces are formed in a planar shape, that is, each section is formed in a trapezoidal shape.

In the bulging portion C, a reinforcing rib 14 of the bulging portion can be provided at a position below the half cut line 10 of the spouting portion as required. Also in this case, the bulging portion C may be provided only on one side wall film, or may be provided symmetrically on both side wall films. The operation and effect of the bulged portion C having the above-described shape will be omitted because it has been described above.

[0049]

As described above, according to the present invention, there is no need for a separate spout made of a molded product or the like.
It can be manufactured with the same process as ordinary pouches with good productivity, the contents can be easily filled, and the pouches after filling and sealing the contents have good self-sustainability, form stability, and good appearance. The tip of the spout provided in the upper corner can be easily cut off and opened, which automatically opens the spout with excellent shape retention properties, as well as low-viscosity contents, Can easily flow into and out of the spout even if the content is high.
It is inexpensive and suitable for use, because the spout does not block during the dispensing and the contents can be safely and easily transferred to the end of small bottles without spilling. It is effective in providing excellent refill pouches with high productivity.

[Brief description of the drawings]

FIG. 1 is a front view showing the configuration of a first embodiment of a refill pouch of the present invention.

FIG. 2 is a view showing a cross-sectional shape of a bulge provided on a wall surface film of the refill pouch shown in FIG. 1 taken along the line AA and the line BB. (B) of (1), a bulging portion is provided symmetrically on the wall film on both sides so as to overlap at the same position. (A) of (2) is an enlarged cross-sectional view taken along line BB when a bulging portion is provided on one wall film, and (b) of (2) )
It is an expanded sectional view in the BB line when a bulge part is provided in a wall film on both sides.

FIG. 3 is a front view showing a configuration of a second embodiment of the refill pouch of the present invention.

FIG. 4 is a front view showing the configuration of a third embodiment of the refill pouch of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Bottom part 2 Bottom heat seal part 3 Body heat seal part 4 Upper heat seal part 5 Wall film 6 Injection part 7a, 7b Notch part 8 Knob part 9 Notch 10 Half cut line 11 Tip part 12 Side part 13 Shoulder part 14 bulging portions of the reinforcing rib C bulge C ₁ spout bulge portion C ₂ of the intermediate portion bulges C ₃ lower part of the bulges 100, 200, 300 refill pouch

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Takataka Aoki 1-1-1, Ichigaya-Kagacho, Shinjuku-ku, Tokyo Inside Dai Nippon Printing Co., Ltd. (72) Inventor Izumi Kojima 1-chome, Ichigaya-cho, Shinjuku-ku, Tokyo No. 1-1 Dai Nippon Printing Co., Ltd. (72) Inventor Seiichiro Komoda 1-1-1, Ichigaya Kagacho, Shinjuku-ku, Tokyo In-house Dainippon Printing Co., Ltd. (72) Koji Otsuka Inventor Koji Otsuka 1-1-1 1-1 Dai Nippon Printing Co., Ltd. F term (reference) 3E064 AB25 BB03 EA01 EA08 EA12 EA23 FA03 HP01 HS10 HU10

Claims (5)

[Claims] 1. A pouch of a standing pouch type in which a fluid content is hermetically sealed and packaged, wherein an outer periphery, that is, a tip, both sides, and both shoulders are provided at an upper corner of the pouch. A spout having an obliquely upward shape formed by heat sealing is provided, and cutouts are provided on both sides of the spout.Furthermore, at least one wall film of the pouch is formed from the spout. At the position near the corner of the pouch bottom opposite to the spout, the width and height are large at the spout, the width and height gradually decrease diagonally downward, and the width and height are substantially constant at the bottom. A pouch for refilling, wherein a curved bulging portion having a height is provided so that its upper surface and both side surfaces are each planar, that is, each section has a trapezoidal cross section. 2. A pouch of the standing pouch type in which fluid content is hermetically sealed and packaged, wherein an outer periphery, that is, a tip, both sides, and both shoulders are provided at an upper corner of the pouch. A spout having an obliquely upward shape formed by heat sealing is provided, and cutouts are provided on both sides of the spout.Furthermore, at least one wall film of the pouch is formed from the spout. At the position near the center of the pouch, or bent from the spout in a V-shape near the center of the pouch, and at a position near the corner of the top of the pouch opposite to the spout, the width at the spout is The bulge, which has a large height and a narrow width and height at the tail-shaped part connected to it, is provided so that its upper surface and both side surfaces are each planar, that is, the cross section of each part is trapezoidal. La Pouch refill, characterized in that is. 3. The shoulder line on both sides of the spout portion and the inner line of the heat seal portion on the side portion are formed in a shape having a two-step slope tapering toward the tip end of the spout portion. The pouch for refilling according to claim 1, wherein the pouch is provided. 4. The refillable pouch according to claim 1, wherein an easy-opening means is provided at the spout. 5. The refillable pouch according to claim 4, wherein the easy-opening means is provided by a combination of a notch and a half-cut line by laser light irradiation.