JP4074016B2 - Small pouch with pour-out path - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sachet with a dispensing path, and more particularly, is suitably used for hermetically wrapping fluid contents such as liquids, and the contents pop out especially when opened, The present invention relates to a pouch with a pour-out path that can be opened and used safely by reducing the amount of contents staying in the pour-out path as much as possible so as not to contaminate clothes.
[0002]
[Prior art]
In the past, liquid seasonings such as soy sauce, sauces, dressings, and noodle soups used with take-out foods such as bento and boiled noodles have been sealed and packaged in a pouch with a pour-out path.
However, in such sachet packaging, the filling and sealing of the contents is usually performed by a so-called liquid-sealed sealing method using a continuous bag making and filling sealing machine. There is a problem that the contents stay, and when opening, the contents pop out, and the fingers and clothes are soiled, and even if you want to use the contents divided into multiple times, use the sachet with the contents remaining There was a problem of leaking out when placed on the bed.
[0003]
[Problems to be solved by the invention]
The present invention has been made to solve such problems, and the object of the present invention is a sachet with a pouring channel used for hermetically wrapping liquid contents such as liquid substances. In particular, when the shape of the pouring channel is improved, the content is filled and sealed, the content hardly accumulates in the pouring channel, and the internal pressure due to the content is applied to the pouring channel. It can be shut off so that the contents do not pop out when opening, and it can be opened safely without fouling fingers or clothing, and even if a sachet with the contents remaining is laid down, it will leak out. It is an object of the present invention to provide a pouch with a pour-out path that is inexpensive and excellent in suitability for use so that the contents can be dispensed freely.
[0008]
[Means for Solving the Problems]
The above problems can be solved 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 material is hermetically packaged therein, and a bag is formed in a part of the heat-sealed portion. It comprises a pouch with a pour-out path, characterized in that it has a narrow pour-out path that communicates with the inside, and the upper and lower films of the pour-out path are provided with mesh-like irregularities that fit into each other.
The mesh size of the mesh-like irregularities is not particularly limited, and can be arbitrarily determined in consideration of the workability.
[0009]
By adopting such a configuration, the film on the upper and lower surfaces of the pouring path are in close contact with each other by the mesh-like irregularities that fit into each other, so the contents filled in the sachet are part of the pouring path In addition, since the internal pressure is blocked at this portion, it is possible to prevent the contents from popping out when opening the pouring channel.
[0010]
And, when the contents are poured out after opening the pouring path, by pressing the main body part of the sachet, the mesh-like irregularities fitted to each other are dissociated, the pouring path is opened, and the contents are opened. Can be dispensed.
In addition, when the pressing is stopped, the width of the pouring path is originally narrow and the film has a certain degree of rigidity, so that the opened pouring path returns to the closing direction, and the mesh-like unevenness is a resistance to the outflow of contents. Since it acts, even if the sachet is laid down, it does not flow out naturally and can be poured out only when force is applied, and the use of a small pouch can also be performed arbitrarily.
[0011]
The invention described in claim 2 is a sachet formed by heat-sealing two upper and lower films in a bag shape, in which a liquid material is hermetically packaged, and a part of the heat seal part is provided inside the bag. It comprises a pouch with a pour-out path, characterized in that it has a narrow pour-out path that communicates, and the top and bottom films of the pour-out path are provided with spot-like irregularities that fit into each other.
The shape, size, and number of the spot-like irregularities can be appropriately determined depending on the width of the pouring path and the viscosity of the contents to be filled.
[0012]
By adopting such a configuration, the film on both the upper and lower sides of the pouring path is brought into close contact with the spot-like irregularities that fit into each other, so that the contents filled in the sachets stay in the portion of the pouring path. In addition, since the internal pressure is blocked at this portion, it is possible to prevent the contents from popping out when opening the pouring path.
[0013]
And also in this case, when the contents are poured out after opening the pouring path, by pressing the main body portion of the pouch, the spot-like irregularities fitted to each other are dissociated and the pouring path opens. Therefore, the contents can be easily poured out.
Similarly, when the pressing is stopped, the width of the pouring path is narrow and the film has a certain degree of rigidity, so that the opened pouring path returns to the closing direction, and the spot-like unevenness causes the contents to flow out. Since it acts as a resistance, even if the sachet is laid down, it does not flow out naturally, it can be poured out only when force is applied, and it can be used freely.
[0014]
The invention described in claim 3 comprises the pouch with a pour-out path according to claim 1 or 2 , wherein a notch is provided in a side portion of the pour-out path.
The notch can be provided in an arbitrary shape as long as it is a starting point at the time of tearing in addition to a single-letter shape and a V-shape.
Further, in combination with such a notch, a half-cut line by laser light irradiation or the like can be provided at the position of the cut line.
[0015]
By adopting such a configuration, in addition to the operation and effect of the invention described in claim 1 or 2 , when opening the extraction path, a tool such as a bag is not required, and the desired position can be obtained by hand. Can easily cut out the tip of the pouring channel and open it.
Further, when the half cut line is provided in combination with the notch, the tear directionality is stabilized, and at the same time, the tear resistance is reduced, so that the tear can be opened more easily and safely.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the invention such as a film used for a pouch with a pour channel and a manufacturing method of the pouch with a pour channel will be described.
First, the film used for manufacturing the pouch with the pouring channel of the present invention is not particularly limited, and any of the known films conventionally used for packaging bags of fluid contents such as liquids are used. From these, it is possible to freely select and use one suitable for the use conditions such as the type of contents to be filled, the presence or absence of heat treatment after filling, or the distribution form.
The following structures are mentioned as a typical example of the structure of the film which can be used.
[0017]
(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 deposition layer) / adhesive / L / LDPE film (sealant layer)
(4) ON film / adhesive / uniaxially stretched PP or HDPE film / adhesive / L / LDPE film (sealant layer)
(5) ON film / adhesive / uniaxially stretched PP or HDPE film / adhesive / aluminum foil / 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)
[0018]
(7) PET film / adhesive / L / LDPE film (sealant layer)
(8) PET film / adhesive / aluminum foil / adhesive / L / LDPE film (sealant layer)
(9) PET film (aluminum or silica or alumina deposition layer) / adhesive / L / LDPE film (sealant layer)
(10) PET film / adhesive / uniaxially stretched PP or HDPE film / adhesive / L / LDPE film (sealant layer)
(11) PET film / adhesive / uniaxially drawn PP or HDPE 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) (sealant layer is L / LDPE layer)
[0019]
(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 these, and various combinations of laminated films can be used.
[0020]
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 an ethylene-vinyl acetate copolymer saponified film, LDPE is low density polyethylene, and L / LDPE is linear Low density polyethylene, HDPE is high density polyethylene, and PP is polypropylene.
[0021]
In general, the part indicated as adhesive is such that films on both sides thereof are bonded together by a dry lamination method, and in this case, a dry lamination type adhesive such as a two-component curing type is used. It is also possible to bond them together by an extrusion lamination method (so-called sandwich lamination method). In that case, a thermoadhesive resin is used. In this case, an anchor coat can be applied to the laminated surfaces of the films on both sides.
[0022]
The anchor coat is a kind of primer coat that is pre-coated on the base film side in order to improve the adhesiveness when the resin is laminated by an extrusion method using a T die or the like.
[0023]
In the configuration of the laminated film, the ON film and the PET film give the bag mechanical strength and printability as the base film, and the uniaxially stretched PP film and the uniaxially stretched HDPE film open the bag in the stretch direction. By using it so as to coincide with the tear direction at the time, the directionality of the tear can be further stabilized.
And aluminum foil, aluminum or silica or an alumina vapor deposition layer, EVOH film, etc. are laminated | stacked mainly in order to provide gas barrier property.
[0024]
An example of the L·LDPE film is given as the sealant layer. However, a layer obtained by extrusion coating of L·LDPE may be used. In this case, an anchor coat can be applied to the laminated surface instead of the adhesive.
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 for bags filled with liquid contents.
[0025]
In addition to the above L / LDPE, the sealant layer may be CPP (unstretched polypropylene), LDPE, ethylene / α-olefin copolymer, ethylene, depending on the contents to be filled, the heat treatment after filling, and the distribution conditions. A film such as a vinyl acetate copolymer, an ethylene / acrylic acid copolymer, an ethylene / acrylic acid ester copolymer, an ionomer, or a polyester resin, or an extrusion coating layer can be appropriately selected and used.
[0026]
In particular, an ethylene / α-olefin copolymer polymerized using a single site catalyst such as a metallocene catalyst has a narrow molecular weight distribution and a stable copolymerization ratio. It has excellent sealing properties, and can be suitably used for the sealant layer of the pouch with the dispensing channel of the present invention.
[0027]
Next, the manufacturing method of the pouch with the pouring channel of the present invention manufactured using the above laminated film is explained.
As described above, the pouch with a pour-out path according to the present invention is fitted into the film on both sides of the pour-out path portion so as to be parallel to the direction of the pour-out path and fitted into each other, or fitted into each other. The present invention is characterized by providing mesh-like irregularities or spot-like irregularities that fit into each other.
[0028]
Conventional pouches with a pour-out path are usually manufactured in a form in which a pour-out path is formed at one end of a heat seal portion of a three-side seal type or a four-side seal type pouch.
Such a pouch with a pour-out path is a liquid pouch-making bag filling and sealing machine that performs in-line filling and sealing of the contents, for example, a roll-shaped laminated film is supplied, and the bottom and side portions are heated with a heated die roll or the like. Then, after filling the contents, the upper part including the formation of the pouring path is performed, and then the individual packaging bodies are cut off.
[0029]
That is, an embossing device is provided after the sealing device at the top of the bag filling and sealing machine for the liquid sachet to provide the uneven strip, the mesh-shaped unevenness, or the spot-shaped unevenness in the portion of the bag pouring path. It can be easily produced by embossing by adjusting the temperature so that the sealant layers of the laminated film do not adhere to each other.
The embossing method itself is preferably a roll method, but can also be implemented by a flat plate method.
[0030]
【Example】
Hereinafter, the present invention will be described more specifically with reference to the drawings.
However, the present invention is not limited to these drawings. The same reference numerals are used for portions having the same names in different drawings.
[0031]
FIG.1, FIG.2, FIG.3 is a top view explaining the structure of one Example of the pouch with the extraction channel | path of this invention, respectively.
A pouch 100 with a pour-out path shown in FIG. 1 is manufactured in a three-side seal form, and in the figure, the laminated film 1 is folded at the right side, and the bottom and left side are the bottom heat seal portion 2. And the side heat seal part 3, and after filling the contents from the upper opening part, the upper part is heat sealed with the upper heat seal part 4 having a pattern capable of forming the extraction channel 5 as shown in the figure, The notch 9 is provided on the side portion of the pouring path, and the concave and convex strips 6 that are fitted to each other in the direction parallel to the pouring path 5 are provided on the laminated film 1 on the upper and lower surfaces of the portion of the pouring path 5. is there.
[0032]
The width | variety and length of the said uneven | corrugated strip 6, and the number (pitch) can be suitably determined with the width | variety and length of the extraction path 5, the viscosity of the content, etc.
Further, in the figure, the position where the ridges 6 are provided is also provided at the position below the notch 9 (main body side), but it can be extended over the notch 9 and provided in the entire region of the pouring path 5. .
[0033]
By adopting such a configuration, since the laminated film 1 on both sides of the portion of the pouring path 5 is brought into close contact with the concave and convex strips 6, the contents are mostly retained in this portion. In addition, the internal pressure is cut off at this portion.
Therefore, when the top of the pouch 100 is torn laterally starting from the notch 9 and the pouring channel 5 is opened, the contents can be safely opened without fouling fingers and clothes. it can.
[0034]
When the contents are to be poured out, the main parts of the pouch 100 with the pouring path, that is, the contents filling part 10 are pressed, or they are squeezed in the direction of the pouring path 5 from the bottom side to fit each other. The jammed ridge 6 is dissociated and the pouring path 5 is opened, so that the contents can be poured out. At this time, since the ridges 6 act as ribs that increase the rigidity of the laminated film in the direction of the extraction path, the extraction path 5 can be smoothly poured out without being bent and blocked.
[0035]
A pouch 200 with a pour-out path shown in FIG. 2 is the same as that of the pouch 100 with a pour-out path shown in FIG. It is configured in place of the mesh-like irregularities 7 to be trapped.
Even when such a mesh-like unevenness 7 is provided, the dimensions thereof, that is, the width and pitch of the mesh, can be appropriately determined according to the width and length of the pouring channel 5 and the viscosity of the contents. it can.
Further, the positions where the mesh-like irregularities 7 are provided may be provided in the entire region of the pouring path 5 as shown in the figure, or may be provided only in a portion below the notch 9 (main body side) of the pouring path. Good.
[0036]
By adopting such a configuration, since the laminated film 1 on both sides of the portion of the pouring passage 5 is brought into close contact with the mesh-like unevenness 7, the contents are retained in this portion. The internal pressure is cut off at this portion.
Accordingly, when the top of the pouch 200 is torn laterally starting from the notch 9 and the dispensing channel 5 is opened, the contents can be safely opened without fouling fingers or clothes. it can.
[0037]
When the contents are poured out, the main parts of the pouch 200 with the pouring path, that is, the contents filling part 10 are pressed, or they are squeezed in the direction of the pouring path 5 from the bottom side to fit each other. The trapped mesh-like irregularities 7 are dissociated to open the pouring path 5 and the contents can be poured out.
Also, by stopping the pressing, the internal pressure decreases, so that the pouring path 5 opened by the rigidity of the laminated film returns to the closing direction, and the mesh-like irregularities 7 provided in the pouring path are used as resistance against the outflow of the contents. Since it acts, even if the sachet 200 is laid down, the contents do not flow out, and can be poured out only when force is applied, and the use of the dispensing can be performed without any problem.
[0038]
3 is the same as the pouch 100 with a pour channel shown in FIG. 1 except that the concave and convex strips fitted on the laminated film 1 on both sides of the pour channel 5 are fitted to each other. It is constructed by replacing the spot-like irregularities 8 to be stuck.
Even when such spot-like irregularities 8 are provided, the shape, size, and number (pitch) of the spots should be determined appropriately according to the width and length of the extraction channel 5, the viscosity of the contents, and the like. Can do.
Further, the spot-like unevenness 8 may be provided in the entire region of the pouring channel 5 as shown, or may be provided only on the bottom side (main body side) of the notch 9 of the pouring channel. Good.
[0039]
Even when such a configuration is adopted, the pouch 300 with a pour-out path shown in FIG. 2 has a spot-like unevenness 8 so that the laminated films 1 on both sides of the pour-out path 5 are in close contact with each other. Therefore, the contents do not stay in this portion, and the internal pressure is blocked at this portion.
Therefore, when the upper portion of the pouch 300 is torn laterally starting from the notch 9 and the pouring channel 5 is opened, the contents can be safely opened without fouling fingers or clothes. .
[0040]
When the contents are poured out, the main parts of the pouch 300 with the pouring path, that is, the contents filling part 10 are pressed, or they are squeezed from the bottom toward the pouring path 5 to fit each other. The trapped spot-like irregularities 8 are dissociated to open the pouring path 5 and the contents can be poured out.
Further, by stopping the pressing, the internal pressure is reduced, so that the pouring path 5 opened by the rigidity of the laminated film returns to the closing direction, and the spot-like unevenness 8 provided in the pouring path is used as a resistance against the outflow of the contents. Since it acts, even if the sachet 300 is laid down, the contents do not flow out and can be poured out only when force is applied, and the use of the dispenser can be performed without any problem.
[0041]
【The invention's effect】
As described above in detail, according to the present invention, a sachet with a narrow width pouring path for hermetically wrapping contents having fluidity, such as various liquid seasonings, filled with the contents, When sealed, the contents hardly remain in the part of the pouring path, and the internal pressure due to the contents can be shut off at the part of the pouring path, and the tip of the pouring path can be easily torn and opened. At the same time, the contents do not pop out when opening the container, and the fingers and clothes are not soiled. After opening, the contents are easily poured out by pressing the main body of the sachet, for example. Furthermore, if the pressing is stopped halfway, the contents will not flow out naturally even if the sachet is laid down, and it can be used not only once but also multiple times. Suitable for use that can be done safely An effect of excellent pouring outlet with pouch can provide good productivity.
[Brief description of the drawings]
FIG. 1 is a plan view for explaining a configuration of a first embodiment of a pouch with a dispensing channel according to the present invention.
FIG. 2 is a plan view for explaining the configuration of a second embodiment of the pouch with a dispensing channel of the present invention.
FIG. 3 is a plan view for explaining the configuration of a third embodiment of a pouch with a dispensing channel of 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 Outlet path 6 Concavity and convexity 7 Net-like unevenness 8 Spot-like unevenness 9 Notch 10 Contents filling part 100, 200, 300 With extraction path Small bag

Claims (3)

A small bag in which a film on both upper and lower surfaces is heat-sealed in a bag shape, and a liquid material is hermetically packaged inside, and a narrow width pouring path communicating with the inside of the bag is provided in a part of the heat-sealed portion. A pouch with a pour-out path is characterized in that the film on the top and bottom surfaces of the pour-out path is provided with mesh-like irregularities that fit into each other . A small bag in which a film on both upper and lower surfaces is heat-sealed in a bag shape, and a liquid material is hermetically packaged inside, and a narrow width pouring path communicating with the inside of the bag is provided in a part of the heat-sealed portion. A pouch with a pour-out path is characterized in that spots on the top and bottom surfaces of the pour-out path are provided with spot-like irregularities that fit into each other . The pouch with a pour-out path according to claim 1 or 2, wherein a notch is provided in a side portion of the pour-out path.

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