JP4139491B2 - Small pouch with pour-out path - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pouch with a pour channel, and more particularly, a pouch with a narrow pour channel used for hermetically wrapping liquid contents such as liquid seasonings, and in particular, opened The contents will not pop out at times, etc., and your fingers and clothes will not get dirty, and the contents will not leak out even if you lay a sachet with the contents temporarily left in use. The present invention relates to a pouch with a pour-out path whose shape is improved.
[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 When placed laid down, there was a problem that it leaked out and was not suitable for subdivision use.
[0003]
[Problems to be solved by the invention]
The present invention has been made to solve such problems, and its object is to provide a narrow-width pouring channel used for hermetically wrapping liquid contents such as liquid seasonings. In particular, when the shape of the portion of the pouring path is improved, the contents are filled and sealed, the contents hardly remain in the portion of the pouring path, and after opening, Even if a sachet with the contents remaining is laid down naturally, the spill resistance is applied so that the contents do not flow out, and the contents pop out when opening, etc., and stain fingers and clothes. In addition, another object of the present invention is to provide, with high productivity, a pouch with a pour-out path that is excellent in suitability for use in small portions if desired.
[0004]
[Means for Solving the Problems]
The above problems can be solved by the following present invention.
That is, the invention described in claim 1 is a small bag in which a film on two upper and lower surfaces is heat-sealed in a bag shape, and a liquid content is hermetically packaged therein , A laminated film in which a biaxially stretched nylon film, an anchor coat layer, and a coextruded coat layer of high-density polyethylene and linear low-density polyethylene are laminated in this order from the outside. A narrow-width extraction path that communicates and a heat seal portion for subdividing the extraction path is provided on the extraction path as a linear or spot heat seal portion, and the extraction path is easily The unsealing means comprises a pouch with a pouring channel, characterized in that it is provided by a combination of a notch and a perforated intermittent half-cut line .
[0005]
The heat seal part provided in the above-mentioned pouring path further subdivides the width of the pouring path to increase the resistance when the liquid content filled in the sachet flows out. The contents are poured out only when the main body portion of the pouch is pressed without flowing out.
[0006]
By adopting such a configuration, the films on both sides of the pouch pour-out path in which the contents are hermetically sealed are in close contact, particularly when the main body portion of the pouch is not pressed, and the contents are in this part. Since there is no stagnation and the internal pressure is shut off at this portion, the contents can be safely opened without opening up the pouring channel and fouling fingers and clothes.
[0007]
And, after opening the pouring path, the contents can be poured out from the pouring path only when the main part of the sachet is pressed if desired, and when the pressing is stopped, the pouring is also stopped, The contents will not leak out even if you lay them down. Therefore, it can be carried out without any problem even if it is used once or divided into multiple times.
[0008]
Further, in the invention described in claim 1, heat-sealed portion for subdividing the pouring outlet has a structure provided with linear or spot-shaped heat-sealed portion.
The detailed shape, the number, the arrangement, and the like of the linear or spot heat seal portion can be appropriately determined according to the fluidity such as the width and length of the entire extraction channel and the viscosity of the contents.
[0009]
By adopting such a configuration, it is possible to easily subdivide the pouring path, and thus it is possible to more easily adjust the resistance to the outflow of contents.
Therefore, it is possible to more reliably obtain a pouch with a pour-out path that does not stain fingers and clothes when opening the pour-out path, and that can be suitably used by arbitrarily dispensing the contents.
[0010]
Moreover, in invention described in Claim 1 , it is set as the structure by which the easy-opening means was provided in the said extraction channel with the combination of the notch and the perforated half-cut line.
[0011]
As the above easy-opening means, in addition to notches often used in ordinary pouches, a half-cut line by laser light irradiation or the like, or a method of laminating a uniaxially stretched film in a laminated film of a pouch (in this case, a uniaxially stretched film) Are used such that the stretching direction coincides with the unsealing direction of the discharge channel), and these may be used alone, for example, a laminate of a notch and a half-cut line or a notch and a uniaxially stretched film It can also be used in combination.
[0012]
When providing a half cut line, not only a straight half cut line but also an intermittent half cut line such as a perforation can be provided.
In addition, when a notch is provided, a notch such as a letter shape or a V shape is usually used, but the shape is not particularly limited, and any shape having a pointed portion in the cutting direction can be used.
[0013]
By adopting such a configuration, it is possible to easily cut and open the tip of the pouring path by hand without using a tool such as a bag when opening the pouring path.
For example, when a half-cut line is provided in combination with a 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.
[0014]
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.
[0015]
(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)
[0016]
(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)
[0017]
(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.
[0018]
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.
[0019]
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.
[0020]
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.
[0021]
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.
[0022]
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.
[0023]
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.
[0024]
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.
[0025]
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 of the present invention is a pouch in which two upper and lower films are heat-sealed in a bag shape, and liquid contents are hermetically packaged inside the pouch. A part of the seal part is provided with a narrow width extraction path communicating with the inside of the bag, and the extraction path is further provided with a heat seal part such as a line or spot to further subdivide it. An easy-opening means such as a notch is provided on the exit path.
[0026]
Such a pouch with a pour-out path is similar to a conventional pouch with a pour-out path, and uses a wound-up laminated film to make a pouch for filling and filling the contents in-line. Can be manufactured with good productivity.
That is, a rolled-up laminated film is supplied, and for example, the body part of the bag is heat sealed on the bottom and sides with a heating die roll or the like in a three-side seal type or a four-side seal type, and then the contents are After filling, the upper heat seal includes a part of the pouring path, and the part of the pouring path is provided with a heat sealing part such as a line or a spot for subdividing the part. In addition, it can be manufactured by a method of separating each package body while providing an easy-opening means such as a notch in the dispensing path.
[0027]
【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.
[0028]
FIG. 1 and FIG. 2 are plan views for explaining the configuration of an embodiment of a pouch with a dispensing channel of the present invention.
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, the upper part includes the formation of the extraction path 5 as shown in the figure, and the extraction path 5 is further subdivided. For this purpose, heat sealing is performed with the upper heat seal portion 4 of the seal pattern having a linear heat seal portion 6 for the purpose, and a notch 8 is provided on the side portion of the extraction path.
[0029]
The width and length of each line of the linear heat seal portion 6 and the number (pitch) thereof can be appropriately determined depending on the width and length of the extraction channel 5 and the fluidity such as the viscosity of the contents. it can.
In addition, the shape of the linear heat seal portion 6 itself is shown as an example of a straight line in the figure, but it can also be provided in a curved shape such as a waveform or a broken line shape such as a zigzag.
[0030]
By adopting such a configuration, the pouch 100 with the pour-out path is in a state where the pour-out path 5 is further subdivided by the linear heat seal portion 6 and at the same time the laminated films 1 on both sides of this portion 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.
[0031]
Therefore, the top of the pouch 100 can be easily torn and opened laterally starting from the notch 8, and when the pouring channel 5 is opened, the contents jump out and soil fingers and clothes. And can be opened safely.
In addition, even after opening the pouring channel 5, the linear heat seal portion 6 blocks the internal pressure of the sachet 100, so that the content will flow out even if the sachet 100 is placed laid down unless particularly applied. There is no.
[0032]
When the contents are poured out, the internal pressure is cut off by pressing the main body portion of the pouch 100 with the pouring path, that is, the content filling part 10 or by squeezing out from the bottom toward the pouring path 5. The effect is lost and the contents can be poured out.
Further, when the pressing or squeezing is stopped, the internal pressure is reduced, and the internal pressure blocking effect by the linear heat seal portion 6 is manifested again. Things will not leak out.
Accordingly, not only the use at one time but also the small-size use divided into a plurality of times can be performed without any problem.
[0033]
A pouch 200 with a pour-out path shown in FIG. 2 is the same as the pouch 100 with a pour-out path shown in FIG. Thus, the spot-shaped heat seal portion 7 is used instead.
Also in the case of such a spot-like heat seal portion 7, the shape, size, number (pitch), arrangement, etc. of individual spots are such as the width and length of the pouring channel 5 and the viscosity of the contents. Depending on the property, it can be determined as appropriate.
[0034]
Even in the case of adopting such a configuration, like the pouch 100 with the pour-out path shown in FIG. 1, the pouch 200 with the pour-out path has the laminated film 1 on both sides of the pour-out path 5 and the spot-like heat seal portion 7. Therefore, the contents do not stay in this portion, and the internal pressure is blocked at this portion.
[0035]
Accordingly, the top of the pouch 200 can be easily torn and opened laterally starting from the notch 8, and when the pouring channel 5 is opened, the contents jump out and soil fingers and clothes. And can be opened safely.
In addition, the internal pressure of the sachet 200 is cut off by the spot-like heat seal portion 7 even after the pour channel 5 is opened, so that the contents will flow out even if the sachet 200 is laid down unless particularly force is applied. There is no.
[0036]
When the contents are poured out, the internal pressure is cut off by pressing the main body portion of the pouch 200 with the pouring path, that is, the content filling part 10 or by squeezing out from the bottom toward the pouring path 5. The effect is lost and the contents can be poured out.
Further, when the pressing or squeezing is stopped, the internal pressure is reduced, and the effect of blocking the internal pressure by the spot-like heat seal portion 7 is exhibited again. Things will not leak out.
Accordingly, not only the use at one time but also the small-size use divided into a plurality of times can be performed without any problem.
[0037]
【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. In addition, if the pressing is stopped halfway, the contents will not flow out naturally even if the sachet is laid down. It can be used without any problems. An effect of excellent pouring outlet with pouch can provide good productivity.
[Brief description of the drawings]
FIG. 1 is a plan view illustrating the configuration of an embodiment of a pouch with a dispensing path according to the present invention.
FIG. 2 is a plan view for explaining the configuration of another embodiment of the 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 Linear heat seal part 7 Spot-like heat seal part 8 Notch 10 Content filling part 100, 200

Claims (1)

A sachet formed by heat-sealing a film on two upper and lower surfaces in a bag shape, in which liquid contents are sealed and packaged, and the two upper and lower surfaces are biaxially stretched nylon film and anchor coat layer from the outside A laminated film in which coextruded coating layers of high-density polyethylene and linear low-density polyethylene are laminated in this order, comprising a narrow width pouring path communicating with the inside of the bag in a part of the heat seal portion, and In addition, a heat seal portion for subdividing the discharge passage is provided in the discharge passage as a linear or spot heat seal portion, and an easy-opening means is provided in the discharge passage with notches and perforations. A pouch with a pour-out path, characterized by being provided in combination with intermittent half-cut lines .

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