JP2019069798A - Pouch, and method of manufacturing the same - Google Patents

Abstract

A refillable pouch is provided which can easily adjust the position of a spout to the filling port position of a dedicated container. A pouch (1) in which laminated films are overlapped, a ceiling is formed around the top, a left side, a right side, and a bottom, and a storage portion is formed inside, wherein one side seal portion and a top seal portion are formed. A narrowly shaped pour-out end seal portion (15) extending obliquely upward, a side surface / top cutout, and a non-fused portion pour channel (20) surrounded by them In the pouch having the pouring part (2) to be formed and having the opening part (21) that can be opened by breaking the pouring part, the opening part is inside the outer shape of the pouring end seal part From the protruding cut line (211) formed with a width to one end, the protruding cut line connects from one end of the protruding cut line to the other end of the protruding cut line through the extraction path of the non-fused portion where the front and back films are not fused. A pouch comprising an easy-open processing line (210) capable of forming a spout. [Selection] Figure 1

Description

  TECHNICAL FIELD The present invention relates to a refill pouch for storing food products such as liquid detergents, softeners and other toiletry products, edible oils, sauces, and instant coffee.

  Containers for storing toiletry products such as liquid detergents and softeners, and food products such as edible oils and instant coffees are each used as a dedicated container having an easy-to-use shape, for example, a plastic bottle or a glass bottle. These specialized containers are also robust and therefore expensive so that they can be used repeatedly when their contents are exhausted. Refilling pouches for refilling such special containers with contents are separately sold.

  However, since these dedicated containers are designed so that the contents can be easily poured out, it has not always been considered in consideration of the convenience of the refilling operation for refilling the contents from the refilling pouch.

  Conventionally, as a refill pouch for storing fluid or other fluid contents, it is possible to easily and safely refill the contents into a dedicated container, and at the same time, it is inexpensive and the empty bag is not bulky, and used It is desirable to be able to easily carry out later disposal processing, and from this point of view, a pouch with a pouring out part is widely used, in which a small width pouring out part is provided by heat sealing on a part of the upper part of the bag. .

  However, such a pouch has a common disadvantage that the opening of the opened spout is bad because the width of the spout is narrow. Moreover, even if it is opened, since the pouring portion is formed of the same flexible material as the bag body, it is inferior in rigidity, and the pouring portion opened in the middle of pouring is easily closed, and the dedicated container It is difficult to insert the outlet into the outlet. Furthermore, depending on the contents, depending on the contents, the front and back laminated films approach each other and close at the area inside the contents rather than the contents of the contents. In particular, in the latter half of the pouring, there is a problem that it becomes difficult to pour out the contents. In particular, in the case of the content such as liquid detergent and cosmetics having viscosity, there is a problem that it is more difficult to pour out, and the pouring portion of the pouch is easily detached from the filling port of the dedicated container.

  As a method of improving these, in patent document 1, the pouring out part which protrudes in the upper corner part of a pouch is provided, an easy-opening processing line is provided in the said pouring out part, and the upper engagement groove is provided in the upper and lower sides of the said pouring out. And a lower engagement groove provided at an angle of 15 degrees to 65 degrees from the side end of the pouring portion, and the protrusion is in contact with the side surface of the opening of the container to be refilled continuously to the lower engagement groove After opening, the lower side of the pouring portion after being opened by the easy opening processing line rests on the upper end of the mouth of the container to be refilled in substantially the same direction as the protruding portion of the pouring portion. The pouch with the pouring function characterized in that it is provided so as not to project shorter than the tip of the above pouring part is proposed.

  However, even if the upper and lower engaging grooves are provided above and below the pouring portion, the pouring portion of the pouch is likely to be detached from the filling port of the dedicated container because the pouring portion itself is thin and has no rigidity. . In particular, the pouch for refilling is a packaging container that has a weight and is relatively thin and has no rigidity, and in a weak person, it consumes the force to support the pouch and positions the pouring outlet. There was a problem that it was difficult to keep it aligned with the filling port position of the dedicated container.

Patent No. 4134388 gazette

  Therefore, it is an object of the present invention to obtain a pouch for refilling in which the position of the spout is easily aligned with the position of the filling port of the dedicated container.

The pouch of the present invention is a pouch in which laminated films are stacked, and a ceiling seal portion, a left seal portion, a right seal portion, and a bottom seal portion are provided around the periphery, and a storage portion is formed inside,
At the intersection of either the left side seal part or the right side seal part, and the top seal part, there is a pouring part consisting of a narrow-width pouring end seal part extending obliquely upward And
In the pouch in which the pouring portion has an opening portion which can be easily broken open.
The unsealing portion is a protruding cutting line formed with a width on the inner side of the outer shape of the pouring end seal portion;
A pouch characterized by comprising an easy-open processing line capable of forming a spout connected to the other end of the protruding cutting line from one end of the protruding cutting line through the non-fusion part where the front and back films are not fused. It is.

  In the pouch of the present invention, at the time of refilling, the unsealing part is broken, and the projecting part consisting of the outer shape of the pouring end seal part and the projecting cutting line is formed. Therefore, the projecting part formed around the pouring outlet is a dedicated container Can be inserted into the filling port of the For this reason, since the position of the pouring outlet can be surely matched with the filling port position of the dedicated container, there is no problem such as leakage of the contents, and refilling is possible.

They are the whole view which shows an example of the pouch which concerns on this invention, and the enlarged view of the pouring outlet vicinity. It is a figure which shows the process of opening and pouring the pouch which concerns on this invention. It is a figure which shows the pouring spout in the 1st-3rd Example of the pouch which concerns on this invention. It is a figure which shows the pouring spout in 4th Example and comparative example of the pouch which concerns on this invention.

Hereinafter, embodiments of the pouch of the present invention will be described with reference to the drawings.
FIG. 1 is an overall view showing an example of a pouch according to the present invention, and an enlarged view in the vicinity of the outlet thereof.
The pouch 1 of the present invention has a front film 101 and a back film 102 made of laminated films, and the back film 102 is stacked on the back and has a ceiling seal 11, a left seal 12, a right seal 13 and a bottom seal 14 around the periphery. The pouch is provided with a storage unit for storing the contents inside.
An example of the pouch shown in FIG. 1 is a standing pouch in which the bottom portion is fused to the bottom film 141, and is a pouch having a self-supporting property.

This pouch has a narrow-width outlet end seal portion 15 extending obliquely upward at the intersection of the left seal portion 12 or one of the right side seal portion 13 and the top seal portion 11. It has the pouring part 2 which consists of. In FIG. 1, the pouring portion 2 is provided at the intersection of the left seal portion 12 and the top seal portion 11.
The pouring portion 2 is formed of a pouring end seal portion 15 having a tapered outer shape, a side surface notch 121, a top surface notch 111, and a non-fusion part pouring channel 20 surrounded by them. And, it has an opening part 21 which can be easily broken open.

The unsealing portion 21 passes through a protruding cutting line 211 formed with a width on the inner side of the outer shape of the pouring end seal portion and the pouring path 20 where the front and back films are not fused from one end of the protruding cutting line 211 It forms from the easy opening processing line 210 which can form the pouring spout which leads to the other end of the protruding cutting line 211.
The protruding cutting line 211 has a width inside the outer shape of the pouring end seal portion, so that when the unsealing part 21 is broken and removed, the guide frame 151 reliably remains, and the tip of the pouring portion 2 is filled In addition, it is possible to make the displacement less likely to occur during filling.

The easy-to-open processing line 210 is formed from a frangible line that can be partially broken by half-punching with a sharp blade or scanning with a laser beam.
As a laser beam, as a laser beam to process, gas lasers, such as a carbon dioxide gas laser and a nitrogen laser, solid lasers, such as a ruby laser and a YAG laser, etc. can be used.
The laser beam is run in a linear manner, preferably by half cutting through the base layer and reaching the sealant layer. In the case of using a metal foil, the metal foil tends to break, so half cutting is performed to the upper end of the metal foil. Even if it is not completely cut, the biaxially stretched layer is heated, and if it is in an unstretched state, the layer is easily broken. Therefore, the layer is heated to a temperature higher than the crystallization temperature, preferably near the melting point.

The easy-to-open processing line can be broken even with a single processing line, but from one end of the protruding cutting line through the pouring path of the non-fusion part where the front and back films are not fused It is preferable to form an easy-open processing line by a plurality of parallel weak lines on the pouring destination side and the storage unit side centering on the easy-open processing line capable of forming the connected pouring spout.
This prevents tearing in an unintended direction when tearing off the left and right when breaking and tearing because the easy-to-open processing line 210 is not reliably cut, and trying to open in an unexpected direction. It is

It is preferable that the easily tearing processing line 210 be a processing line formed by a weak line having a straight shape or a curved shape in which the front film and the back film cut off the non-fusion part, and having no acutely bent portion.
Naturally, it is preferable to process the fragile line at the same position on the front and back.

  Cutting, notching, or the entire outer diameter cutting can be performed by punching with a Thomson blade, press punching with a die, or press processing with a vice blade. A part of the outer shape may simply be cut off in a separate process.

FIG. 2 is a figure which shows the process of opening and pouring out the pouch based on this invention.
FIG. 2A shows a process of opening the pouring portion 2.
In the unsealing portion 21, a protruding cutting line 211 of the pouring end seal portion and an easy-opening processing line 210 are formed. Therefore, if the tip end side of the unsealing portion 21 cut off with the protruding cutting line 211 is flipped over and firmly pulled, and pulled strongly, it is broken along the easy opening processing line 210 from one end side of the easy opening processing line 210 or from both ends. , Can be opened easily.
When the unsealing portion 21 is broken and removed in the pouring portion 2, the guide frame 151 remains at a position sandwiched between the outer shape of the pouring end seal portion and the easy-to-open processing line 210.

2-2 is a figure which shows the process which is refilling from a pouch based on this invention to a container.
The container 5 to be filled is prepared by opening the filling port 51 upward.
It is good to leave the pouring path 20 in the non-fusion part by the side of the storage part 10 from the easy opening processing line 210 of the pouring part 2.
At the position of the pouring path 20, the front film 101 and the rear film 102 are held, and the pouring path 20
Close. With the pouring passage 20 closed, the pouch 1 is turned over, the pouring portion 2 is directed downward, and the guiding frame 151 of the pouch 1 is inserted inside the filling port 51 of the container 5 to be filled. In this state, when the hand closing the passage 20 is released and opened, the contents flow from the pouring portion 2 into the filling port 51 of the container by gravity, and the container 5 can be filled.
At this time, since the guiding frame 151 is located inside the filling port 51, the pouring portion 2 does not surely come out of the filling port 51 during filling, and the hand holding the pouch is slightly shaken, even if it is shifted. It is possible to fill without leaking the contents.

  The refill pouch according to the present invention can be applied not only to a standing type (self-supporting type) pouch as shown in FIG. 1, but also to a three-way seal type and a four-way seal type pouch, depending on the usage form and content volume and design. It is available.

  The basic structure of the laminated film constituting the pouch of the present invention may be a film comprising a base layer on the outside and a sealant layer on the inside, but as an intermediate layer, a barrier layer for improving the storage stability of the contents It is preferable to provide a layer which imparts a flexibility which makes it difficult for the bag to break when dropped or the like.

  As a base material layer, a polyester film, a polypropylene film, a polystyrene film, a nylon film, a polycarbonate film, a polyacrylonitrile film, a polyimide film etc. are mentioned. There is no particular limitation as long as it has mechanical strength and dimensional stability. Particularly preferred is a biaxially stretched film. Moreover, what provided the aluminum vapor deposition layer in these films may be used.

  Moreover, a printing layer can be suitably provided in a base material layer as needed. The printing layer is a layer printed by an ink obtained by adding various pigments, an extender pigment, a plasticizer, a desiccant, a stabilizer, and the like to a binder resin such as urethane, acrylic, nitrocellulose, and rubber. As a printing method, well-known printing methods, such as offset printing, gravure, flexographic printing, silk screen printing, inkjet printing, can be used, for example. The adhesion of the print layer can be improved by subjecting the surface of the substrate layer to corona treatment or ozone treatment as pretreatment in advance.

  As the sealant layer, polyolefin resins are generally used. Specifically, low density polyethylene, linear low density polyethylene, medium density polyethylene, high density polyethylene, ethylene-vinyl acetate copolymer (EVA), Polyolefin resins such as ethylene-methacrylic acid copolymer (EMAA), ethylene-ethyl acrylate copolymer (EAA), ionomers, and polypropylene can be used. It is possible to form a film of these resins by an extruder. It may be a single layer or multiple layers. The thickness of the film is preferably in the range of 50 to 200 μm.

  An adhesive for dry lamination can be used as the adhesive layer. For example, a two-part curable urethane adhesive, a polyester urethane adhesive, a polyether urethane adhesive, an acrylic adhesive, a polyester adhesive, a polyamide adhesive, an epoxy adhesive, etc. can be used. . The laminating method may be a dry laminating method, but it may be laminated while forming a film on the sealant layer side by extruder lamination, or it may be sand polyethylene processing.

  In addition, if it is necessary to improve various physical properties of the laminated sheet, for example, in the case of improving the barrier property of water vapor, oxygen gas, etc., in the case of improving the rigidity, drop strength, piercing strength, etc. of the laminated sheet, etc. It is also possible to provide a layer. However, it is desirable that the material can be easily weakened or easily broken by processing of the easy-open processing line.

  As an intermediate | middle layer, aluminum foil, an aluminum vapor deposition polyester film, an inorganic oxide vapor deposition polyester film, a polyamide resin etc. can be used, for example. Moreover, in order to laminate the intermediate layer, it can be attached by a dry lamination method through an adhesive layer.

  As the inorganic oxide, oxides of metals such as silicon oxide, aluminum oxide, magnesium oxide, calcium oxide, potassium oxide, tin oxide, sodium oxide, boron oxide, titanium oxide, lead oxide, zirconium oxide and yttrium oxide can be used. . Among them, silicon oxide, aluminum oxide and magnesium oxide are preferable in terms of productivity and cost.

Hereinafter, specific examples of the present invention will be described.
3 to 4 are views showing the spout in the embodiment of the pouch according to the present invention and the comparative example.
In both of the embodiment and the comparative example, the laminated film constituting the pouch is manufactured by using a two-component curable urethane adhesive on the inner surface of a biaxially stretched 6-nylon film 15 μm by a dry lamination method, using polyethylene oxide deposited polyethylene. A 12 μm of terephthalate film was laminated, and further, a linear low density polyethylene film of 100 μm was laminated on the inner surface to prepare a laminated film.

The back of laminated film is put together, it is a size of 250 mm long and 130 mm wide, and it is made a four-sided seal pouch, the outside is processed into the shape of a four-sided seal except the top seal part, and after sealing the upper left corner, In the shape of each Example of -4, and the shape of a comparative example, the external shape of a notch etc. and protrusion cutting line were pulled out with the sharp blade.
The easy-open processing line was processed by scanning a surface flaw by scanning a carbon dioxide gas laser with a wavelength of 10.6 μm at an output of 21 watts into various shapes at a speed of 2500 mm / sec.
The contents were filled with 450 ml of shampoo and then the top seal portion was fused to complete the pouch.

3-1 is a pouch of Example 1, and the protrusion cutting line 211 is formed only in the range of the pouring end seal part 15. FIG.
In the first embodiment, the tip of the protruding cutting line 211 has a pointed shape such as the top of a triangle, and the root side has a fixed seal width from the inner fusion end of the pouring end seal portion 15. It is placed in position.
A pouring passage 20 in which the front film and the back film are non-fusion-bonded portions is formed between the root ends of the protruding cutting line 211. Then, an easy-open processing line 210 in which a plurality of linear weak lines are processed in parallel from one end to the other end of the root of the protruding cutting line 211 is formed by scanning a laser beam.

3-2 is a pouch of Example 2, and the protrusion cutting line 211 is formed by the circular shape which was notched within the range of the pouring end seal | sticker part 15. FIG.
And the pouring path 20 which a front film and a back film consist of a non-fusion part is formed between the end point both ends of this notched circular shaped protruding cutting line 211. As shown in FIG.
Then, an easy-opening process consisting of a plurality of parallel weak lines in the remaining circular portion between the end points of the end points of the notched circular protruding cutting line 211 crossing the pouring passage 20 A line 210 is formed by scanning a laser beam.

3-3 is a pouch of Example 3, and the protruding cutting line 211 is formed in the range of the pouring end seal part 15 by the notched elliptical shape.
Then, between the end points of the cut-out protruding line 211 having the oval shape,
A pouring passage 20 is formed in which the front film and the back film are non-fused portions.
Then, an easy-opening process consisting of a plurality of parallel weak lines in the remaining elliptically shaped portion between the end points of the end points of the notched elliptically shaped protruding cut line 211 crossing the pouring passage 20 A line 210 is formed by scanning a laser beam.

4-1 is a pouch of Example 4, and the protrusion cutting line 211 is formed of the triangular two-sided shape which was notched within the range of the pouring end seal | sticker part 15. FIG.
And the pouring path 20 which a front film and a back film consist of a non-fusion part is formed between the end point both ends of the protruding cutting line 211 which consists of this notched triangular 2 side shape.
Then, an easy-open processing line 210 consisting of a plurality of parallel weak lines is formed by scanning a laser beam on a straight line-shaped portion of the bottom shape of the remaining triangle crossing the pouring passage 20.
By sharpening the tip of the guide frame 151 at a right angle, waste is reduced and insertion into the filling port is facilitated.

  4-2 shows a pouch according to Comparative Example 1, in which there is no protruding cut line 211, and an easy-open processing line including notches and fragile lines connecting the notches is provided on the left and right ends of the pouring end seal portion 15. An example of a common pouring outlet is shown.

<Evaluation method>
Five pouches each filled with 450 ml of shampoo were prepared, and as a filled container, a plastic bottle with a volume of 500 ml and a diameter of 25 mm was used to evaluate the refillability into the filled container.
For refilling, 5 persons were selected, and as the pouch workability of each example and comparative example, the plugging property of the spout, filling amount, stability after plugging, spill resistance to the outside of the filling container, filling of contents For each evaluation item of remaining amount, comparative evaluation was made on a full scale of 5 points.

<Pouch evaluation test result>
In <insertability of the injection port>, there was no difference in Examples 1 to 4, but in the comparative example, the width of the seal portion on the left and right of the injection port was wide and it was difficult to insert.
In <pouring amount>, the pouches with large pouring outlets in Example 1 and Example 4 were able to be poured out quickly. Also in the comparative example, the pouring opening was wide open and it was easy to pour, but since the insertion depth was shallow, it was difficult to refill vigorously and it took time.
<Stability after inserting the injection port into the filling port> There was no difference in the example with the induction frame, and the insertion state was stably maintained, but in the comparative example, since the insertion depth is shallow, it is not possible. It was stable.
In the case of <leakage to the outside of the filling container>, there was no difference in the example with the induction frame, and the situation could be maintained without spilling out of the filling container, but in the comparative example, the insertion depth was shallow, so It was easy to leak or spill through the end seal parts of the left and right ends.
In <filling content of contents>, the pouches with large pouring outlets in Example 1 and Example 4 were reliably poured out, and the remaining amount could be minimized. Also in the comparative example, the pouring port was widely opened and it was easy to pour, but since the insertion depth was shallow, it was difficult to stably hold the position of the pouring port in the filling port and dripped easily.

  From the above results, in the pouch of the present invention, since the induction frame can be refilled in the state of being inserted into the filling port compared with Comparative Example 1, stable filling can be performed, and it can be confirmed that leakage during filling is less likely to occur. The

The pouch of the present invention is as described above, and the productivity is high simply by changing the extraction blade provided with a guiding frame at the outlet end and scanning the laser light, and a large change of equipment is not necessary. Production is possible. In addition, the contents are not limited to liquid, and powder or granules can be used for refilling. Especially in the case of powder or granules, if it can be inserted firmly into the filling port with the induction frame, the generated powdery form leaks and contamination of the surroundings is reduced, and the workability of refilling is improved, and a great advantage is obtained. .

1......... ...... top notch 12 ....... left sealing unit 121 ...... side notch 13 ....... right seal unit 14 ....... bottom seal portion 141 ...... bottom film 15 ....... Note Extension end seal portion 151 · · derived frame 2 ........ spout portion 20 ... .... pouring outlet 21 ....... unsealing portion 210 ...... easily openable processing line 211 ...... protruding score line 5 ........ container (filled Container)
51 · · · · · · · · · · · · filling port

Claims (7)

It is a pouch in which a laminated film is stacked and a ceiling seal portion, a left seal portion, a right seal portion, and a bottom seal portion are provided around the periphery, and a storage portion is formed in the inside,
At the intersection of the left side seal part and the right side seal part, and the top seal part, a narrow-width pouring end seal part extending obliquely upward, a side notch, It has a pouring part formed of a top surface notch and a pouring part of a non-fusion part surrounded by them,
In the pouch in which the pouring portion has an opening portion which can be easily broken open.
The unsealing portion is a protruding cutting line formed with a width on the inner side of the outer shape of the pouring end seal portion;
It is characterized by comprising an easy-open processing line capable of forming a pouring outlet connected to the other end of the projecting cutting line from the projecting cutting line end through the pouring path of the non-fused portion where the front and back films are not fused. And a pouch.   The pouch according to claim 1, characterized in that when the unsealed portion surrounded by the protruding score line and the easy-to-open processing line is broken and removed, the guide frame forming the outer shape of the pouring end seal portion remains. .   The easy-to-open process line capable of forming a pouring spout is characterized in that the front film and the back film are formed from a straight line shape or a curvilinear line-like fragile line that cuts off a non-fusion part. The pouch described in.   The pouch according to any one of claims 1 to 3, wherein the easy-open processing line comprises a plurality of parallel weak lines.   The pouch according to any one of claims 1 to 4, wherein the outer shape of the tip of the pouring portion is a tapered shape.   A pouring passage is left in the non-fusion part on the storage part side from the easy opening processing line of the pouring part, and after opening, the pouring outlet can be closed by pressing the pouring passage. The pouch according to any of the above. A method of manufacturing a pouch, comprising: laminating a laminated film; forming a ceiling seal portion, a left seal portion, a right seal portion, and a bottom seal portion around the periphery, and forming a storage portion inside;
At the intersection of the left side seal part and the right side seal part and the top seal part, a pouring out part comprising a narrow-width pouring end seal part extending obliquely upward is provided. ,
In forming the opening part which can be easily fractured and opened in the said pouring part,
The unsealing portion has a width on the inner side of the outer shape of the pouring end seal portion and forms a protruding cutting line by completely removing the opening portion,
In forming an easy-open processing line capable of forming a spout connected to the other end of the protruding cutting line from one end of the protruding cutting line through the non-fusion part where the front and back films are not fused
A method of manufacturing a pouch, wherein the easy-open processing line is processed by scanning with a laser.

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