JP2000159246A - Small bag with pouring line - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manufacture a small bag of superior usability for seal packaging a liquid condiment or the like, in the constitution of which hands, fingers and the like are not contaminated with a content at the time of unsealing, the content is not made to flow out when the small bag is laid down in the middle of pouring and the use of small amount distribution of the content can be carried in a good manner. SOLUTION: A small bag 100 with a pouring line is manufactured into the bag shape by, for example, the three-way sealing method, and after a liquid content is filled therein, an upper opening is heat sealed by an upper heat sealing section 4 of the shape of forming a pouring line 5 provided with a narrow section 6 and bending sections 7 and 7' generating the pressure loss not leaking the content just by the internal pressure of the filled content, and an easy unsealing means such as a notch 8 is provided on the unsealing position of the pouring line 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pouch provided with a spout, and more particularly, to a pouch provided with a spout used for hermetically packaging a liquid content such as a liquid seasoning. In particular, the contents do not stain fingers or clothes when opened, and the contents do not leak out even if the sachet temporarily containing the contents is laid down during use. Thus, the present invention relates to a pouch with a pouring path having an improved shape of the pouring path.

[0002]

2. Description of the Related Art Conventionally, liquid seasonings such as soy sauce, sauces, dressings, noodle soup and the like used in conjunction with take-out foods such as lunch boxes and boiled noodles have been hermetically packaged in small bags with an outlet. However, in such small bag packaging, the filling and sealing of the contents is usually performed by a so-called liquid-sealing method using a continuous bag making and filling sealing machine. There is also a problem that the contents may stagnate at the time of opening, causing the contents to jump out and soiling fingers and clothes.Also, if you want to use the contents multiple times, remove the sachet containing the contents. When laid down, there was a problem that it leaked and was not suitable for subdivision use.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object of the present invention is to seal a liquid content such as a liquid seasoning in a sealed package. A pouch provided with a spout to be used for filling, especially when opening the spout of a pouch filled with the contents by improving the shape of the spout portion, and using the contents with fingers or clothes. It does not stain, etc., and after opening, even if the sachet with the remaining contents is naturally laid down, the contents do not leak out, and it can be used multiple times in subdivisions without problems. An object of the present invention is to provide a small pouch with an excellent discharge path with high productivity.

[0004]

The above objects can be attained by the present invention described below. That is, the invention described in claim 1 is a small bag in which a film on both upper and lower surfaces is heat-sealed in a bag shape, and a liquid content is hermetically sealed therein. A narrow width portion and a bent portion so that the spouting passage has a pressure loss that does not allow the contents to leak due to the internal pressure of the filled liquid contents alone. And a pouch with an outlet.

[0005] The shape of the bent portion of the above-mentioned spouting path may be a bent line-shaped bent portion or a curved bent portion. In addition, the specific width and length of the narrow portion of the spouting path, and the shape and number of the bent portions, etc., are appropriately determined according to the size of the pouch, the filling amount of the contents and its fluidity, etc. Can be. In particular, if the width of the narrow width portion of the pouring path is too small, it takes time to pour out, or the pouring itself becomes difficult, and if it is too large, there is a risk of leakage due to only the internal pressure of the contents. Because
It is preferable that the distance is appropriately determined within a range of about 5 to 6 mm.

[0006] By adopting such a configuration, in the pouch with a spouting passage filled with the contents, the internal pressure is cut off at the narrow width portion and the bent portion of the spouting passage.
In the vicinity of the outlet of the pouring path, the films on both sides of the pouring path are substantially in close contact with each other, and the content hardly stays in this portion. Therefore, the contents can be safely opened without the contents jumping out and soiling the fingers and clothes when opening the pouring path.

After the spout is opened, the contents can be spouted from the spout only when the main body of the pouch is pressed, and when the pressing is stopped, the spout is stopped and the pouch is laid down. Contents do not leak even if placed. Therefore, not only one use but also a plurality of sub-uses can be performed without any problem as desired.

According to a second aspect of the present invention, there is provided the pouch with the spouting path according to the first aspect, wherein an easy-opening means is provided in the spouting path.

As the above easy-opening means, a notch often 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, The uniaxially stretched film is used such that its stretching direction coincides with the opening direction of the pouring path). These may be used alone, or, for example, a notch and a half-cut line, or a notch and a uniaxially stretched film. They can be used in combination such as lamination of films.

When the half-cut line is provided, the half-cut line is not limited to a linear half-cut line, but may be provided by intermittent half-cut lines such as perforations. The number of the half-cut lines may be one. It can also be provided in a plurality of pieces. When a notch is provided, usually, a notch such as a one-letter shape or a V-shape is used, but the shape is not particularly limited, and any shape having a pointed portion in a cutting direction can be used.

By adopting such a configuration, in addition to the operation and effect of the invention described in the first aspect, when opening the spouting path, tools such as scissors are not required and the spouting path can be easily operated only by hand. Can be cut off and opened.
Further, for example, when the half-cut line is provided in combination with the notch, the tearing directionality is stabilized, and at the same time, the tearing resistance is reduced, so that the opening can be performed more easily and safely.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention, such as a film used for a pouch with a spout and a method for manufacturing the pouch with a spout, will be described. First, the film used for producing the pouch with a spout of the present invention is not particularly limited, and any known film conventionally used for a packaging bag for fluid contents such as a liquid material may be used. From these, suitable ones can be freely selected and used according to use conditions, such as the kind of contents to be filled, the presence or absence of heat treatment after filling, or the distribution form. The following configuration is a typical example of the configuration of a usable film.

(1) ON film / adhesive / L·LDPE
Film (sealant layer) (2) ON film / adhesive / aluminum foil / adhesive /
L-LDPE film (sealant layer) (3) ON film (aluminum or silica or alumina deposited layer) / adhesive / L-LDPE film (sealant layer) (4) ON film / adhesive / uniaxially stretched PP or HDP
E film / adhesive / L / LDPE film (sealant layer) (5) ON film / adhesive / uniaxially stretched PP or HDP
E film / adhesive / aluminum foil / adhesive / LL
DPE film (sealant layer) (6) ON film / anchor coat layer / co-extrusion coat layer (HDPE layer / L / LDPE layer) (the sealant layer is L / LDPE layer)

(7) PET film / adhesive / L·LDP
E film (sealant layer) (8) PET film / adhesive / aluminum foil / adhesive / L·LDPE film (sealant layer) (9) PET film (aluminum or silica or alumina vapor deposited layer) / adhesive / L·LDPE Film (sealant layer) (10) PET film / adhesive / uniaxially stretched PP or HD
PE film / adhesive / L / LDPE film (sealant layer) (11) PET film / adhesive / uniaxially stretched PP or HD
PE film / adhesive / aluminum foil / adhesive / L ・
LDPE film (sealant layer) (12) PET film / anchor coat layer / co-extrusion coat layer (HDPE layer / L-LDPE layer) (the sealant layer is L-LDPE layer)

(13) PET film / adhesive / aluminum foil / adhesive / ON film / adhesive / L / LDPE film (sealant layer) (14) PET film / adhesive / ON film / adhesive /
Aluminum foil / adhesive / L·LDPE film (sealant layer) (15) PET film / adhesive / EVOH film / adhesive / ON film / adhesive / L·LDPE film (sealant layer) However, the present invention is not limited to this, and various combinations of laminated films can be used.

In the above, the ON film is a biaxially stretched nylon film, the PET film is a biaxially stretched polyethylene terephthalate film, the EVOH film is a saponified ethylene-vinyl acetate copolymer film,
PE is low-density polyethylene, L / LDPE is linear low-density polyethylene, HDPE is high-density polyethylene, PP
Refers to polypropylene.

In general, a film or the like on both sides of the portion indicated as an adhesive is adhered by a dry lamination method. In this case, an adhesive for dry lamination such as a two-component curing type is used. In addition, it is also possible to bond by an extrusion lamination method (so-called sandwich lamination method), in which case,
A heat-adhesive resin is used. In this case, an anchor coat can be applied to the laminated surfaces of the films on both sides.

An anchor coat is a kind of primer coat which is previously coated on a base film side in order to improve adhesiveness when a resin is laminated by an extrusion method using a T-die or the like.

In the construction of the laminated film, ON
Film, PET film, as a base film, imparts mechanical strength and printability to the bag, and the uniaxially stretched PP film and the uniaxially stretched HDPE film have the stretching direction coincide with the tearing direction when opening the bag. By using this, the directionality of the tear can be further stabilized. An aluminum foil, an aluminum or silica or alumina vapor-deposited layer, an EVOH film, and the like are laminated mainly to impart gas barrier properties.

Although the example of the L·LDPE film has been given as an example of the sealant layer, a layer obtained by extrusion coating of L·LDPE may be used. In this case, an anchor coat may be applied to the laminated surface instead of the adhesive. it can. L·LDPE is excellent in heat seal stability, content resistance, stress cracking resistance, and the like, and can be widely used as a sealant layer of a bag filled with a liquid content.

In the sealant layer, the above L·LDP
In addition to E, depending on the contents to be filled, heat treatment after filling, distribution conditions, etc., CPP (unstretched polypropylene),
LDPE, ethylene-α-olefin copolymer, ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer, ethylene-acrylate copolymer, ionomer, polyester resin, etc. Can be 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 has excellent hot sealing properties and can be suitably used for the sealant layer of the pouch with a spout of the present invention.

Next, a method of manufacturing a pouch with a spout according to the present invention, which is manufactured using the above-described laminated film, will be described. As described above, the pouch with a pour-out path of the present invention is a pouch in which the film on the upper and lower surfaces is heat-sealed in a bag shape, and the liquid content is hermetically sealed therein. A part of the seal portion is provided with a spouting passage communicating with the inside of the bag, and the spouting passage is narrow so as to generate a pressure loss that does not allow the contents to leak only by the internal pressure of the liquid contents filled therein. It is characterized in that it is formed in a shape having a width portion and a bent portion.

Therefore, such a pouch with a spouting path can be obtained by simply changing the seal pattern of the heat sealing section forming the spouting path, usually the upper heat sealing section, to a pattern capable of forming the spouting path as described above. In the same manner as a conventional pouch with a pour-out path, for example, using a rolled-up laminated film, a pouch making and filling machine for liquids that performs in-line bag making and filling of contents, and heat sealing of openings, etc. It can be manufactured with good productivity by utilizing it.

That is, a rolled-up laminated film is supplied, and the bottom and side portions of the bag are heat-sealed with a heating die roll or the like into a three-sided seal type or a four-sided seal type. After filling the contents, the upper heat seal forms a spouting channel with a narrow width portion and a bent portion that generates a pressure loss that does not allow the contents to leak due to only the internal pressure of the contents filled inside. Heat sealing with a seal pattern that can be performed, and also providing an easy-opening means such as a notch or a combination of a notch and a half-cut line in the pouring path, and thereafter, it can be easily manufactured by a method of separating individual packages. .

[0026]

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. FIGS. 1, 2, 3, and 4 are plan views each illustrating the configuration of an embodiment of a pouch with a spouting channel according to the present invention.

The pouch 100 with a spout shown in FIG. 1 is made in a three-sided sealing manner. In the figure, the laminated film 1 is folded at the right side, and the bottom and the left side are connected to the bottom heat. A seal pattern which is heat-sealed by the seal portion 2 and the side heat seal portion 3 and is capable of forming a pouring path 5 as shown in the upper portion after filling the liquid content from the upper opening portion, that is, the upper portion Heat-sealing is performed by the heat-sealing portion 4, and a notch 8
Is provided.

The outlet 5 has a pouch 1 at its entrance.
00 at the top right, from which it turns left at the first bend 7 into the narrow width section 6 and into the pouch 100
After reaching the left-hand side, the second bent portion 7 'is again bent upward to reach the outlet.
It is preferable that the narrow width portion 6 of the pouring path 5 is appropriately determined in the range of 1.5 to 6 mm width depending on the fluidity of the contents. Further, the width of the outlet facing upward from the pouring path 5 is not particularly limited, but is preferably in the range of about 6 to 10 mm.

By adopting such a configuration, the pouch 100 with the discharge path filled with the contents is sealed.
The outlet portion at the opening position is formed to have a relatively narrow width, and at the same time, the spout channel 5 has a narrow width portion 6 so that the internal pressure of the content alone causes a pressure loss that does not cause leakage of the content. And the first and second bent portions 7 and 7 ′, so that the contents hardly stay near the outlet portion where the pouring path 5 is opened. Therefore, the spout 5 can be easily opened by tearing the upper portion of the pouch 100 in the lateral direction with the notch 8 as a starting point, and at this time, the contents are prevented from jumping out and soiling fingers and clothes. can do.

When the contents are to be poured out, the main body of the pouch 100 with a discharging path, that is, the contents filling portion 10 is pressed or squeezed in the direction of the discharging path 5 from the bottom side. Since the internal pressure is larger than the pressure loss applied to the discharge path 5, the contents can be discharged. Further, when the pressing or the squeezing is stopped, the internal pressure is reduced and the pressure loss of the spouting channel 5 acts, so that the pouring is stopped, and the contents leak even when the pouch 100 is laid down. There is no. Therefore, not only one use but also a plurality of divided uses can be performed without any problem.

The pouch 200 with the spout shown in FIG. 2 is the same as the pouch 100 with the spout 100 shown in FIG.
As shown in the figure, only the shape of the spouting channel 5 formed by the upper heat sealing portion 4 is shortened at the lower portion of the upper heat sealing portion 4, that is, the width of the inlet portion of the spouting channel 5 is increased. This is configured by changing the shape of the portion 6 having a narrow width from the first bent portion 7 to the second bent portion 7 'to be shorter.

In the case where such a configuration is adopted, the discharging path 5
Is provided with a narrow width portion 6 and first and second bent portions 7 and 7 '. In this portion, a pressure loss that does not allow the contents to leak due to the internal pressure of the filled contents alone. Therefore, the same operation and effect as those of the pouch 100 with a spout shown in FIG. 1 can be obtained.
However, since the length of the narrow width portion 6 of the spout channel 5 is shortened and the pressure loss is correspondingly reduced, the viscosity is slightly higher than that of the pouch 100 with the spout channel shown in FIG. It is a configuration suitable for an object.

The pouch 300 with the spout shown in FIG. 3 also has the same configuration as the pouch 200 with the spout 100 shown in FIG. As shown in FIG.
The configuration is such that the small bag 300 is changed to be located at the center in the width direction, and accordingly, the length of the narrow width portion 6 of the spouting path 5 is further shortened.

For this reason, the lateral length of the lower portion of the upper heat seal portion 4 is reduced, and the right portion of the upper heat seal portion 4 is extended to the same position as the lower portion. As shown by arrows in the flow path of the filled contents, the contents entered from the inlet of the spouting channel 5 turn left at the first bent portion 7, pass through the narrow width portion 6,
Further, the second bent portion 7 'is modified so as to reach the outlet above the pouch 300.

In the case where such a configuration is adopted, the discharging path 5
The first and second bent portions 7, 7 'and the narrow width portion 6 between them cause a pressure loss that does not allow the contents to leak out only by the internal pressure of the contents filled in the pouch 300. Therefore, the same operation and effect as in the case of the pouches 100 and 200 with the spout shown in FIGS. 1 and 2 can be obtained. However, since the length of the narrow width portion 6 of the spouting channel 5 is further shortened and the pressure loss is reduced accordingly, it is easy to adjust the pressure loss at a lower level, and the content having a high viscosity is reduced. It can be applied more easily.

The pouch 400 with a spout shown in FIG. 4 is different from the pouch 100 with a spout shown in FIG.
The configuration is such that the shape of the spouting channel 5 provided in the upper heat seal portion 4 is changed into a curved shape. That is, the spouting path 5 is formed in an upwardly curved shape from the upper right side of the small bag 400 as an entrance portion and from there to the diagonally upper left portion. It is formed as a narrow width portion 6 up to the side.

In this case, since the tip of the spouting path 5, that is, the outlet, is oriented substantially in the lateral direction of the pouch 400, when the spouting path 5 is opened, the tip is cut off in the width direction. It is preferable to cut the pouch 400 as much as possible in the vertical direction. Therefore, as an easy-opening means, the notch 8 is provided obliquely upward at a position near the upper part of the side heat seal portion 3 of the small bag 400, and further, a half-cut line 9 is provided on an extension of the notch 8, thereby stabilizing the cutting direction. It is configured to be able to be converted. Such a half-cut line 9 may be a single line at the center, or a plurality of lines, such as one line or two lines, each of which is a parallel line approaching on both sides thereof, whereby the direction of tearing Properties can be further stabilized.

In the case where such a configuration is adopted, the pouring path 5
Has a curved bent portion 7 at the inlet and a curved narrow width portion 6 ahead of the curved portion, so that only the internal pressure of the filled contents in these portions is sufficient. Since a pressure loss that does not cause leakage of the contents can be generated, the same operation and effect as those of the pouches 100, 200, and 300 with the spouting path shown in FIGS. Further, in particular, since the half cut line 9 is provided in combination with the notch 8 at the opening position of the pouring path 5,
The tearing direction is stable, the resistance is small, and the tear can be easily opened.

In the construction of the pouch with a spout shown in FIGS. 1 to 4, the lower line of each upper heat seal portion 4, that is, the seal line facing the content filling portion 10 is shown in FIG. As illustrated in the lower part of the upper heat seal part 4 of FIG. 1, the content filling part 10 can be formed in an inclined shape so as not to have a corner at the upper part thereof. The amount of residual liquid can be reduced.

[0040]

As described above in detail, according to the present invention, there is provided a small bag provided with a spout for hermetically packaging contents having fluidity such as various liquid seasonings, wherein the spout is opened. It is easy to use, and it does not stain the fingers or clothes with the contents at the time of opening, and after opening, press the main part of the pouch or the direction of the pouring path from the bottom side of the pouch. By squeezing out the contents, the contents are poured out for the first time, and furthermore, if the pressing or the squeezing is stopped halfway, the pouring is also stopped. It is possible to provide a pouch with a spouting path excellent in usability, with good productivity, in that the pouch can be used not only once but also a plurality of divided portions without any problem.

[Brief description of the drawings]

FIG. 1 is a plan view illustrating the configuration of a first embodiment of a pouch with a spout according to the present invention.

FIG. 2 is a plan view for explaining the configuration of a second embodiment of a pouch with a spout according to the present invention.

FIG. 3 is a plan view for explaining the configuration of a third embodiment of a pouch with a spout according to the present invention.

FIG. 4 is a plan view illustrating the configuration of a fourth embodiment of a pouch with a spout according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Laminated film 2 Bottom heat seal part 3 Side heat seal part 4 Upper heat seal part 5 Injection path 6 Narrow width part 7, 7 'bending part 8 Notch 9 Half cut line 10 Contents filling part 100, 200, 300, 400 Small bag with outlet

Continuation of the front page (72) Inventor Takashi Tarutani 1-1-1 Ichigaya-Kagacho, Shinjuku-ku, Tokyo F-term in Dai Nippon Printing Co., Ltd. 3E064 AA04 EA13 HP01 HS05

Claims (2)

[Claims] 1. A small bag in which a film on both upper and lower surfaces is heat-sealed in a bag shape and a liquid content is hermetically sealed therein, and communicates with a part of the heat-sealed portion inside the bag. A spouting channel is formed, and the spouting channel is formed into a shape having a narrow width portion and a bent portion so as to generate a pressure loss that does not cause leakage of the content only by the internal pressure of the filled liquid content. A pouch with an outlet. 2. A pouch with a spouting path according to claim 1, wherein said spouting path is provided with easy-opening means.