JP2000281091A - Pouch for refill - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pouch for refill which is a spout-having pouch for hermetically packaging contents in a liquid form or the like, is self-supportable and satisfactory in the openability and shape retention of a spout, and enables deep insertion of the spout into even a container with a small-mouth diameter and safe and easy refilling of the contents. SOLUTION: A pouch 100 for refill is constructed in such a manner that a pouch main body is made in a standing pouch type bag, a spout 9 of a projecting shape formed by heat sealing a perimeter, that is, a leading end 6, both sides 7, and shoulders 8 is provided in part of an upper part, and the heat sealed parts of both the sides 8 and the shoulders 8 of the spout 9 are formed in a bent line having a specific width which becomes wider toward its bottom while having two inclinations on both sides with respect to the center line A of the spout. It is preferable to provide the spout 9 with an easy-to-open means such as a notch 11.

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. In order to safely and easily transfer to small containers such as bottles, a spout is provided at a part of the upper part of the pouch, and the spout is easily opened,
The present invention also relates to a refill pouch having an improved shape of the spout so that the spout can be inserted as deeply into the mouth of the container as possible.

[0002]

2. Description of the Related Art Conventionally, standing pouches, which are self-supporting and easy to handle and have some of the features of a three-dimensional container, are mainly used as refill pouches for hermetically packaging liquid or other fluid contents. The opening is formed by cutting out a part such as a corner, instead of the entire top of the pouch, so that the contents can be safely transferred to another container without spilling the contents at the time of opening, or
A method of providing a narrow spout at a part of the upper part of the pouch, a method of attaching a separate spout made of a plastic molding or the like to a part of the upper part of the pouch by heat bonding, and the like have been 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, costs the spout itself, and requires an empty pouch to which the spout is attached. , Because the thickness of that part increases,
The cost of storage and transportation is also high, and when filling the contents, for example, the number of empty pouches loaded into the feeder section of the filling machine is greatly reduced, so it is necessary for the operator to frequently supply empty pouches. For example, there is a problem that the cost increases and the complexity of the process and the operation increases.

[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 if the viscosity of the contents is a little high, it takes time to pour out. Then, as a result of the upper portion of the pouch swelling due to the internal pressure, a bending line is formed from the upper portion of the pouch to the inside of the spout, so that the tip side of the spout is closed, and there is a problem that the pouring becomes difficult.

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. The product can be manufactured with high productivity in the process, the contents can be easily filled, and at the time of use, the opening of the spout provided at the top of the pouch is cut off and opened, and the contents of the container are transferred. By inserting the spout into the pouch and tilting the pouch, the mouth of the spout can be easily opened and its shape retention is good, and at this time, the spout can be inserted deeply into the mouth of the container, An inexpensive, easy-to-use refill for safe and easy transfer of contents, even for small-bore bottles, without blocking the spout during filling. Providing pouches with good productivity A.

[0007]

The above objects can be attained by the present invention described below. In other words, the invention as set forth in claim 1 is a standing pouch having, on a part of an upper portion, an outer periphery, that is, a tip portion, and a protruding spout portion formed by heat-sealing both side portions and shoulder portions. A pouch of the type, wherein the heat sealing portions on both sides and the shoulder portion on both sides of the spout portion have a polygonal linear shape having a predetermined width which spreads flared at two sides with respect to a center line of the spout portion on both sides. And a refill pouch characterized in that the pouch is refilled.

In the above, the spout provided on a part of the upper part of the pouch is provided with a neck-shaped spout directly on a part of the upper side of the pouch. When the internal pressure is applied to the upper part of the pouch and the upper part expands, a crease is formed below the spout along the upper side of the pouch, and the spout remains closed without opening.

Therefore, in order to make the opening of the spout easy to open, the shape of the spout is such that the base portion has an appropriate width and the side portions on both sides have a flared slope. It is preferable that when the internal pressure is applied to this portion, the spout portion can be easily spread in a funnel shape and can be easily opened. However, even in this case, in the case where the sides on both sides of the spout are flared in one straight line, the width of the base of the spout is relatively wide. The angle increases, especially
If the diameter of the mouth of the container to be transferred is small, there is a problem that the opened spout cannot be inserted into the mouth of the container to a sufficient length. Also, if the spout is made longer, the opening angle becomes smaller, but the amount of the pouch film used increases for the capacity, and there is a problem in terms of economy, and the appearance is also disproportionate. .

For this reason, the spout has a shape having a side portion and a shoulder portion on both sides thereof.
In order that the opening angle becomes large at the shoulder, that is, the side and the shoulder have a shape having two-step inclination of skirt expansion, and furthermore, the connection between the side and the shoulder is not provided with a curved portion and has a broken line shape. More preferably, it is formed into a shape that can be inserted into the mouth of the container up to the lower end of the side portion.

Therefore, by adopting the structure as described in the first aspect of the present invention, the refillable pouch filled with the contents is self-supporting, easy to handle, and excellent in appearance. When the transferred contents are transferred to another container such as a bottle, first, the heat seal portion at the tip of the spout is cut off and opened, and then the spout is
By tilting the pouch by inserting it into the mouth of the bottle to the lower end of its side, the contents flow into the spout of the pouch, and the internal pressure causes the spout to easily swell into a funnel and open. Out is started. And the funnel-shaped opening has good shape retention, so that the contents do not spill outside and the spout does not become blocked during pouring, and it is safe to the end. In addition, the contents can be easily transferred.

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

[0013] 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 notch and a half-cut line, or a notch and a uniaxially stretched film. Can be used in an appropriate combination such as lamination.

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. In addition, such a half-cut line may be one line, but assuming that the tearing direction is shifted, one half-cut line is provided on each side of the center half-cut line.
A plurality of half-cut lines such as two or two half-cut lines may be provided in parallel. As the notch, a one-shaped or V-shaped notch is usually used, but the shape is not particularly limited, and any shape having a pointed portion in the cutting direction can be used.

By adopting such a configuration, in addition to the functions and effects of the invention described in the first aspect, when opening the spout, tools such as scissors are not required and only hands are required.
The tip of the spout can be easily cut off and opened at a desired position.

Further, in the refill pouch of the present invention, a bulge portion having an appropriate shape may be provided in the film of the spout portion or the pouch body portion by a hot embossing method or the like. For example, the spout portion has a shape corresponding to the shape of the spout portion, or a bulging portion such as a pressing ruled shape along the center line of the spout portion, inside the heat seal portion on the outer periphery thereof, The openability of the spout and the shape retention thereof can be further improved.

The pouch body is provided with a swelling portion, such as a creasing shape, extending from the spout to the center of the pouch so that the portion can be easily spread outward at the time of pouring, so that the contents can be spouted. Flow to the part can be facilitated. Further, by providing a bulging portion such as a vertical pressing ruled shape on the left and right sides of the pouch body, the form of the pouch after filling the contents can be stabilized by the rib effect, and the appearance can be improved. Such a bulge may be provided only on one side of the film on both sides of the pouch, but by providing the film on both sides, the effect can be further improved.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of a film used for producing a refill pouch of the present invention and a method for producing a pouch will be described. 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 typical example of a laminated film that can be preferably used, the following configuration can be mentioned.

(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 or alumina deposited layer) / adhesion Agent / Uniaxially stretched HDPE film / Adhesive / L ・ LDP
E 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 / co-extrusion 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. The anchor coat is a kind of primer coat which is previously coated on the substrate 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,
When the film and the uniaxially stretched PP film are used so that the stretching direction thereof coincides with the tearing direction at the time of opening the spout of the pouch, the directionality of the tearing can be further stabilized. An aluminum foil, a silica or alumina vapor-deposited layer, an EVOH film, and the like are laminated to provide gas barrier properties. In addition, as the sealant layer, L-LDPE film and C
Although two types of PP films have been given, the L / LDPE film is excellent in heat seal stability and content resistance, such as stress cracking resistance to surfactants, and the CPP film has heat resistance and low odor. Excellent in nature,
It is suitable for packaging contents that require these properties.

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, the 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, so that the low-temperature heat sealability and 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 of 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, so that a known standing pouch bag making machine can be used, and a spout port, a notch, a half-cut line and the like can be easily opened. A trimming device, a punching device, a heat sealing device, a laser beam irradiation device, and the like for providing the sexual means are appropriately incorporated.In addition, when the bulging portion is provided in the spout or main body portion of the pouch, an embossing device is added. The pouch can be easily manufactured by assembling.

[0025]

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. Further, the same reference numerals are used for the parts having the same names in different drawings. Figure 1,
FIG. 2 is a front view illustrating the configuration of one embodiment of the refill pouch of the present invention.

The refill pouch 100 shown in FIG.
The body is made in a standing pouch style. That is, the bottom portion 2 is formed in a gusset format in which the bottom film is folded inward in a conventional manner, and semicircular bottom film cutout portions 3, 3 are provided near the lower ends on both sides of the film folded inward. The gusset part is formed by heat sealing with a bottom seal part 4 of a ship bottom shape. The body of the pouch 100 is formed by heat-sealing both side edges of the front and rear wall film 1 with the body sealing portion 5.

At the upper corner of the pouch 100, the outer periphery, that is, the tip 6, and the side portions 7, 7 and the shoulders 8, 8 on both sides are formed so as to project obliquely upward by heat sealing. A spout 9 is provided by trimming the outside of the spout, and a V-shaped notch 11 is provided as an easy-opening means at an end of the cutout line 10 which is an opening position of the spout 9. It is configured.

According to the present invention, in the above configuration, the shape of the spout 9 is, as shown, heat-sealed between the side portions 7, 7 on both sides and the shoulders 8, 8 following the tip 6. The part has a shape that spreads flared with a two-step slope on both sides with respect to the center line A of the spout, and a curved part is provided at the connection between the side parts 7, 7 and the shoulder parts 8, 8 on both sides. It is characterized in that it is formed in a shape that is connected to a polygonal line without being provided. In addition, in the upper part of the pouch, the part other than the part provided with the spout 9, that is, the part of the upper seal part 12 was an unsealed opening before filling the contents, and the contents were filled from this part. Thereafter, heat sealing is performed by a degassing seal or the like.

By adopting such a configuration, the refillable pouch 100 filled with the liquid content and the upper seal portion 12 is degassed and sealed to form a pouch body in a standing pouch style. Therefore, it is self-supporting, easy to handle, and excellent in appearance.

When the filled contents are transferred to a bottle or the like, the tip of the spout 9 is easily torn in the direction of the cutout line 10 using the notch 11 so that the spout can be easily removed. The part 9 can be opened. As described above, the spout 9 of the opened pouch 100 has the heat seal portions on both sides thereof, that is, the outer and inner seal lines of the side portions 7, 7 and the shoulder portions 8, 8, respectively. Is formed in a polygonal line shape having a predetermined width and a two-step slope of the skirt, so that a predetermined seal width is secured without a part where the seal width is particularly narrowed, and the corners of the polygonal line are curved. As compared to the case where the side part 7 is formed,
Since the outer width of the spout 9 can be narrowed to the base of 7, the entire side portions 7, 7 can be inserted into the mouth of a bottle or the like, and the fixability of the spout 9 to the mouth of the bottle is also stable. Be transformed into

When the pouch 100 is tilted toward the spout, the contents flow into the spout, and the internal pressure causes the spout 9 to easily spread and open in a funnel shape, thereby starting the pouring. Is done. In addition, since the funnel-shaped opening has a good shape-retaining property, the contents can be safely and easily transferred to the end without the closure of the spout 9 during the pouring.

The refill pouch 200 shown in FIG.
In the configuration of the refill pouch 100 shown in FIG. 1, only the position where the spout 9 is provided is changed from the corner at the top of the pouch to the center at the top of the pouch.

In such a configuration, since the spout 9 is provided in the center of the upper part of the pouch, it is preferable to change the filling port of the contents to the position of the spout 9. That is, of the upper end of the pouch 200, the upper seal portions 12, 12 on both sides of the spout 9 are heat-sealed at the time of bag-making, and the heat-seal portions on the outer periphery of the spout 9 are replaced with the contents. Before filling, the opening is unsealed, and after filling the content from this portion, heat sealing and sealing can be performed.

In this case, the refill pouch 20 is also used.
In the case of No. 0, the pouch 200 filled with the contents is self-supporting, easy to handle, and excellent in appearance since its main body is a standing pouch type. Although the forming position of the spout 9 is changed, the shape is the same as the spout of the refill pouch 100 shown in FIG. It has the same function and effect as described above.

That is, when the contents are transferred to a bottle or the like, the tip of the spout 9 can be easily torn by hand using the notch 11, and the spout 9 can be opened. The opened spout 9 can be inserted deeply into the mouth of the bottle up to the bases of the side portions 7, 7, and its fixing property is stable. By inclining the pouch 200 toward the spout, the contents flow into the spout, and the internal pressure causes the spout 9 to be easily opened in a funnel shape, and the shape retention is excellent. Therefore, the contents can be safely and easily transferred without spilling the contents to the outside and without blocking the spout during the pouring.

[0036]

As described above in detail, according to the present invention, there is provided a pouch for hermetically packaging contents having fluidity such as liquid, which does not require a separate spout for 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 pouch filled with the contents is self-supporting, easy to handle, excellent in appearance, At the time of use, the tip of the spout provided on a part of the upper part of the pouch can be easily torn and opened, and the spout can be inserted deeply into containers such as small-bore bottles. Due to the internal pressure of the spout, the spout opens in a funnel shape with good shape retention, without spilling the contents outside, and without the spout being blocked halfway, the contents can be safely and easily completed to the end. That you can transfer things An effect that can be provided with good productivity a refill pouch which is excellent in use suitability inexpensive.

[Brief description of the drawings]

FIG. 1 is a front view illustrating the configuration of an embodiment of a refill pouch of the present invention.

FIG. 2 is a front view illustrating the configuration of another embodiment of the refill pouch of the present invention.

[Description of Signs] 1 Wall film 2 Bottom 3 Bottom film cutout 4 Bottom seal 5 Body seal 6 Tip 7 Side 8 Shoulder 9 Outlet 10 Cutout line 11 Notch 12 Upper seal A Outlet Centerline 100,200 refill pouch

Claims (2)

[Claims] 1. A pouch of a standing pouch type having an outer periphery, that is, a tip portion, and a protruding spout portion formed by heat-sealing both sides and shoulders on a part of an upper portion. The heat-sealing portions on both sides and shoulders on both sides of the spout portion are formed in a polygonal line shape having a predetermined width which spreads in a skirt with two-step inclinations on both sides with respect to the center line of the spout portion. A refill pouch characterized by the following: 2. The refillable pouch according to claim 1, wherein an easy-opening means is provided on a side of said spout.