JP4915027B2 - Pouch spout - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a spout of a pouch with a spout that includes a liquid or a viscous body and a content in which a solid is contained in the liquid or the viscous body.
[0002]
[Prior art]
Conventionally, juice, soup, stew, jelly, etc. may be stored in a pouch with a spout made of a flexible material, or medicines, linear agents, inks, etc. may be packaged. Juice, soup, stew, jelly, etc. In some cases, the user puts a mouth on the spout (outlet main body) and drinks the contents. Examples of the pouch include a standing pouch, a side gusset pouch, and a flat pouch depending on the shape.
Further, the spout main body has a flange portion, an adhesive base portion that is thermally bonded to the pouch is formed on one side of the flange portion, and a cylindrical portion for pouring the contents is formed on the other side. Is done.
Before the edge of the pouch is thermally bonded, the outlet is inserted by inserting a part of the outlet between two films on the edge and heating and pressurizing from the outer surface of the film.
When a user drinks the contents stored in the pouch with a spout as described above by sucking or the like, the inner surface of the pouch is partially adhered, and the contents remain in the pouch. Regardless of this, so-called obstruction occurs. In order to prevent the blockage, as shown in FIGS. 6A to 6C, four extension pieces are suspended below the adhesive base of the spout body, and the four extension pieces are Two opposing lower ends are suspended, and a cross-shaped cross-shaped rib (blocking prevention rib) formed by extending each suspended portion downward is formed, or although not shown, at the tip of the extension piece In some cases, the cylindrical bodies are connected to each other, and blocking is prevented by the blocking ribs made of the cross ribs or the cylindrical body.
Thus, various types of blockage prevention ribs have been proposed for this blockage, which are directed from the lower part of the spout into the pouch. For example, Japanese Patent No. 2949694 shows various shapes as cross sections. Thus, by providing ribs for preventing occlusion in the bag, it is possible to inhale and drink without leaving the contents in the bag.
[0003]
[Problems to be solved by the invention]
When filling the pour-out forming pouch of the tie described above, or when removing the content from the container, the content flows into the pouch from the opening near the lower end of the adhesive base, or in drinking In the case of the contents containing solid matter or high viscosity at the time of filling because the distance from the extension piece to the blocking prevention rib is 7 to 12 mm. In addition, the solid material or high-viscosity material may get caught between the four extension pieces or the cross suspension, or flow resistance may be prevented and flow into the pouch may be deteriorated. In some cases, the contents could get stuck in the container. As countermeasures, there were problems such as making the size of the solid content extremely small, reducing the filling speed, and reducing productivity.
In addition, even when the user sucks the contents, if the user gets caught in the gap formed with the blocking prevention rib provided at the bottom of the spout, the contents will not come out, and in extreme cases In some cases, the gap was blocked. As a result, only a very small diameter solid material could be put.
An object of the present invention is to provide a spout capable of preventing clogging in a pouch with a spout that wraps contents containing solids or high-viscosity contents, and does not clog the contents during filling and drinking. It is to be.
[0004]
[Means for Solving the Problems]
The present invention is attached to the inside of the pouch body. , In order from the pouch body side Adhesive base, elongated boat-shaped flange as well as Outlet tube part is molded integrally with synthetic resin Been Spout body To the spout tube Detachable cap Is installed In the spout assembly, the adhesive base is Inside the pouch Viewed from the bottom so that it is easy to bond and maintains liquid tightness But The shuttle shape Above Below the adhesive base A pair of Hang the extension piece, The pair Extension piece At the bottom of Linkage And Extend downward The Providing blocking prevention ribs The obstruction prevention rib extends from the extension piece. Plate When Vertical plate Toga Cross-section It is provided in A pouch spout Above When the length from the lower end of the adhesive base to the tip of the blocking prevention rib is L, the length of the extension piece is L1, and the length of the blocking prevention rib is L2 (L = L1 + L2), L1 ≧ L2, Of the vertical plate The lower end of the extension piece A pouch spout characterized in that a cut-off portion is formed by cutting off the top corner portion on the side.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the pouch spout of the present invention will be specifically described with reference to the drawings. In the following description, including the drawings, the pouch equipped with the pouch spout is a side gusset type self-supporting pouch, but the pouch type that can be equipped with the pouch spout of the present invention is It is not limited to the illustrated type. FIG. 1 shows a pouch spout according to the present invention. Basic configuration (A) Perspective view of a packaging body filled with a pouch spout and sealed with contents, (b) Perspective view showing structure of spout, (c) X1-X1 section sectional view, (d) ) A top view of the spout main body, (e) an enlarged view of the Y1 portion. FIG. Example of the pouch spout of the present invention (A) is a perspective view, (b) is a top view of the spout main body, (c) is an enlarged view of the Y2 portion. FIG. 3 is a perspective view for explaining a method of mounting the pouch spout of the present invention on the pouch. FIG. FIG. (A) Front view, (b) Side view, (c) X2-X2 part sectional view, (d) X3-X3 part sectional view of the spout main body in FIG. FIG. 5 is a cross-sectional view for explaining the configuration of a laminated body constituting a pouch for mounting the pouch spout of the present invention. The present invention is a pouch with a spout that contains a liquid containing solid matter, and can be filled from the spout without hindrance, and there is no clogging of the pouch when sucking and drinking. You can also drink smoothly.
[0006]
A conventional pouch with a spout is filled with contents containing solids, sold through a predetermined process, and it is difficult to take out the spout from the spout at the stage of taking out the contents by the user who purchased it. Sometimes it took. The cause is found to be due to the shape of the connecting portion when the blocking prevention rib is attached via the extension piece below the adhesive base of the spout main body, and the contents including the solid matter by changing the shape It was possible to solve the problem of clogging in the vicinity of the adhesive base of the spout due to an object.
When taking out the contents from a pouch with a spout by sucking or the like, the contents in the vicinity of the adhesive base will flow into the cylindrical part in the adhesive base, but the presence of the extension piece In the case of the contents including the solid matter, the solid matter is blocked by being caught in the gap between the extension pieces, and the obstacle due to the blockage is also increased. Therefore, the present inventors have found that by changing the shape of the connecting portion, the blockage can be prevented and a solid substance having a larger diameter can be included, and the present invention has been completed.
[0007]
Changing the shape of the connecting portion is FIG. 2 (a) As shown in FIG. 4, the length of the extension piece provided at the lower part of the adhesive base is increased, and the length of the blocking prevention rib connected to the extension piece is shortened. Specifically, when the length from the lower end of the adhesive base to the tip of the blocking prevention rib is L, the length of the extension piece is L1, and the length of the blocking prevention rib is L2 (L = L1 + L2),
L1 ≧ L2
It is what. By increasing the length of the extension piece, the flow at the time of inflow and extraction from the inner cylinder portion of the adhesive base portion was improved. That is, the content injected from the lower end of the adhesive base flows down to the fruit report as it is, and flows into the pouch from the upper end of the blocking prevention rib in the front, rear, left and right directions.
[0008]
As the size of the solid matter contained in the contents stored in the pouch with the spout equipped with the pouch spout of the present invention, the length of the extension piece is equal to or longer than the length of the blockage prevention rib, thereby extending the conventional extension. It became possible to contain a solid substance having a larger diameter than in the case of the piece. Furthermore, it became possible to contain a larger solid by using two extension pieces.
For example, when the inner diameter of the cylindrical portion of the spout main body is 9 mmΦ, and in the case of four extension pieces, the size of the solid matter included as the contents was about 1.5 mmΦ or less. When the length of the extension piece of the spout main body is set to 32 mm which is the same as the length of the blocking prevention rib and the number of the extension pieces is two, it is possible to deal with the contents including the solid matter having a particle size of about 8 mmφ at the maximum. .
[0009]
A specific description will be given of using two extension pieces. Since the connecting portion of the conventional blocking prevention rib to the adhesive base is the four extension pieces, the gap that can be formed is narrow. As shown in FIGS. 2 (a), 4 (a), 4 (b), 4 (c), etc., the inventors have moved the extension piece 16 downward from the two lower ends of the adhesive base 10. Further, the tip portions of the two extension pieces 16 are suspended from each other, and the suspension portions are extended downward as they are to form a plate-like body, and a projection is provided on the plate-like body 18h. By providing an upright portion (hereinafter referred to as a vertical plate-like body 18v), it is possible to prevent the clogging of the pouch that has conventionally occurred at the time of taking out the contents, and at the same time, even if the contents contain solid matter, Since the gap portion formed in the connecting portion of the blocking prevention rib to the adhesive base portion sucked into the outlet is increased, it is easy to take out the solid matter included in the contents.
[0010]
Further, when the blocking prevention rib 17 in the pouch spout 1 of the present invention has a cross-shaped cross section, it is formed into a shape in which at least the top corner of the vertical plate-like body 18v is cut off (hereinafter referred to as a cut-off portion 19). By this, when the solids contained in the contents flow into the pouch from the lower end of the adhesive base of the spout when filling the contents, the filling can be performed without being caught by the upper end corner of the vertical plate-like body 18v. . In addition, by providing the cut-off portion 19, there is little catching even when taking out the contents such as drinking and drinking, and the spout is easy to use.
Note that the shape of the cut-off portion 19 may be a triangular shape as illustrated in FIG. 4A, or may be another shape although not illustrated.
[0011]
In addition, when the number of extension pieces is two, the extension piece 16 may be provided at any position of the adhesive base 10, but the pouch with a spout equipped with the spout 1 for solid matter and high-viscosity product of the present invention is attached. When the contents stored in the container are sucked and taken out, there is a possibility that the lower part of the adhesive base 10 may be pressed by a finger having the pouch, and the two extension pieces 16 are longitudinal in the top view of the pouch. If it is provided, the inflow port of the inner cylinder part of the adhesive base formed between the two extension pieces is pressed with a finger, or the bag is brought into close contact between the extension pieces by drinking. There is a risk of closing.
The two extension pieces 16 are preferably provided at a position perpendicular to the pouch 20 in a top view of the pouch. That is, even if a finger with a pouch presses the lower part of the adhesive base or the bag is flattened by sucking, the presence of the extension piece does not press the inlet, and sucking is hindered. It can be lost.
[0012]
In the outer peripheral surface of the spout cylinder part of the spout main body in the spout for pouches of the present invention, for transporting empty pouches, fixing to a predetermined position of the filling machine, alignment in the cooling process, etc. FIG. 2 (a) As shown, the second flange portion 13 and the third flange portion 14 may be provided. Moreover, you may provide the screw | thread 15 for screwing with the lid | cover 3 shape | molded as a different body. When the sealing sealant 4 is thermally bonded to the upper end of the spout, it is desirable that the upper end edge of the spout cylinder 11 has a sealing surface with a width of about 1 to 2 mm.
[0013]
Pouch spout of the present invention The resin used for molding the spout main body is preferably one that can be thermally bonded to the inner surface of the pouch and has good screwability with the lid, specifically, low density polyethylene, medium density polyethylene, high density polyethylene, Examples thereof include linear low density polyethylene, α / olefin copolymer polymerized using a single site catalyst, and polypropylene.
[0014]
The spout main body and the lid constituting the pouch spout of the present invention are formed separately, and any of them can be obtained by injection molding a thermoplastic resin such as polyethylene, polypropylene, polyamide or the like. .
The spout main body is molded using a resin that can be heat-sealed with the pouch by being sandwiched between the heat bonding portions of the pouch main body and pressurized and heated from the outside of the pouch. In addition, when the contents require heat sterilization (hereinafter referred to as retort sterilization), it is necessary to use a material that is free from deformation as a molded product without being peeled off at the bonding portion with the pouch even by heating during retort sterilization of the contents. There is.
As a result of experiments on various materials, the present inventors have made it possible to heat the resin used for the spout body when the content is sterilized by retort by setting the melting temperature by the DSC method to 110 ° C. or higher. It was confirmed that there was no peeling at the adhesive part due to the above, and that it could be used as the spout main body of the pouch spout of the present invention.
The melting temperature by the DSC method expressed here indicates the melting peak temperature of the DSC curve obtained based on JISK7121.
When the pouch spout of the present invention is retort sterilized, in the same manner as the resin constituting the spout main body, when using the heat-sealing layer and the sealing material constituting the laminate of the pouch main body, The heat sealing layer or the like of the hermetic seal material has a melting temperature of 110 ° C. or higher by the DSC method.
[0015]
The package obtained by sterilizing the contents such as food or beverage filled in the pouch with the spout equipped with the pouch spout of the present invention under pressure and heat sterilization can be stored at room temperature and can be distributed. it can.
In this case, the pouch spout is formed of a heat-resistant laminate, and the spout of the present invention is also made of a material that can withstand pressure heat sterilization.
In general, the pressure heat sterilization is said to be retort sterilization, and is specifically performed as follows.
The pouch with a spout provided with the spout for the solid and high-viscosity product of the present invention molded with a heat-resistant resin in the heat-resistant pouch is filled with the contents and sealed, and in the autoclave, superheated steam or hot water By this, the condition that kills the latest in the contents is held. For example, the overheating condition is set so that the temperature at the center of the content is 120 ° C. and can be held for 4 minutes. The so-called retort sterilization that sterilizes the contents by pressurization overheating makes it possible to store the contents that are prone to deterioration and distribute them at room temperature, enabling planned production and mass production of products, and widening the distribution range.
[0016]
Since the pouch spout of the present invention can be bent due to its structure, when a larger solid matter is moored in the gap, the pouch outlet is pushed by pushing the blocking prevention rib from the outside of the pouch. The rib which exists just under the outlet cylinder part moves, and the entire area of the cylinder part is opened to the contents. As a result, it becomes easy to take out a solid material having a size that can pass through the inner diameter of the cylindrical portion.
[0017]
The spout main body and the lid constituting the spout for pouches of the present invention are separately formed, and any of them can be obtained by injection molding a thermoplastic resin such as polyethylene, polypropylene, polyamide or the like.
The spout body is a material that can be sandwiched between the heat-bonded parts of the pouch body and thermally bonded, and there is no peeling at the bonded part with the pouch even when the contents are sterilized. It is necessary to make the material without deformation. As a result of experiments on various materials, the present inventors have made the melting temperature by the DSC method 110 ° C. or more as the resin used for the spout body when sterilizing the contents by pressure heat sterilization, It was confirmed that there was no peeling at the bonding part due to heating, and that it could be used as a spout main body of the pouch spout of the present invention.
The melting temperature by the DSC method expressed here indicates the melting peak temperature of the DSC curve obtained based on JISK7121. When the solid-corresponding spout of the present invention is used for the contents for retort sterilization, the heat-sealing layer or the like constituting the laminate of the pouch main body is the DSC method, like the resin constituting the spout main body. A melting temperature of 110 ° C. or higher is used.
[0018]
Next, the material of the pouch for mounting the pouch spout of the present invention will be described. As the material used for the pouch, a laminate having a known combination may be used as long as it is suitable for storage stability of the contents to be filled and adhesion to the spout body.
In particular, the material of the pouch will be described below, including the case where a pressure heat sterilization (hereinafter referred to as retort) process is required.
As a pouch with a spout when packaging the contents that require retort sterilization, in addition to being suitable for preserving the contents and adhering to the spout main body, in addition, for the retort sterilization Heat resistance is also necessary.
[0019]
Usually, a laminated film is used as a constituent material of the pouch, and the laminated structure is laminated in the order of the surface layer / thermal layer or the surface layer / intermediate layer / thermal layer from the outer surface. is there. In this configuration, the surface layer and the intermediate layer may each be a single film layer or the like, but may be composed of two or more types of multilayers. In addition, an adhesive layer can be provided between the above layers as necessary. For example, five layers including the adhesive layer 35 such as the surface layer 31 / adhesive layer 35 (1) / intermediate layer 32 / adhesive layer 35 (2) / heat fusion layer 33 as shown in FIG. As shown in FIG. 5B, the intermediate layer has two layers, and the surface layer 31 / adhesive layer 35 (1) / intermediate layer 32 (1) / adhesive layer 35 (2) / intermediate layer 32 (2) / adhesive. Seven layers including an adhesive layer such as layer 35 (3) / heat-sealing layer 33 may be used.
[0020]
The surface layer 31 is excellent in printability and laminate suitability, and has comprehensive mechanical strength required for normal applications such as tensile strength, impact strength, and scratch resistance, and has solvent resistance and chemical resistance. In addition, heat resistance for heating in the retort process and heat sealing during bag making is required.
Examples of the film having the properties corresponding to the required performance or satisfying the conditions include, for example, a biaxially stretched polyester film, a biaxially stretched nylon film, a biaxially stretched polypropylene film, and the like. In order to impart gas barrier properties, a film coated with polyvinylidene chloride or the like, or deposited with an oxide such as metal or silica can be used. The thickness of the film used as the surface layer is suitably 9 to 50 μm.
When the thickness of the surface layer 31 is less than 9 μm, the strength is insufficient, and the suitability for printing and laminating is deteriorated, which is not preferable. Further, in the case of the present invention, the surface layer having a thickness exceeding 50 μm is not preferable because the package itself is small and the strength is sufficient, and the material is expensive.
[0021]
The intermediate layer 32 is provided in order to improve the mechanical strength of the laminated film or to improve water vapor and various gas barrier properties. For example, nylon, polyvinyl alcohol, or ethylene-vinyl acetate copolymer can be used depending on the purpose. Metals suitable for heat sterilization with few pinholes, etc. obtained by mixing other metals such as iron into aluminum as films, aluminum foils and alloy foils such as fluoride (EVOH), polyvinylidene chloride, etc. A foil may be used, or a resin film having a surface coated with a thin film (thickness 40 nm to 60 nm) such as aluminum, silicon oxide, or alumina by vacuum deposition or the like is used. The thickness of the intermediate layer is usually about 7 to 50 μm. When the thickness of the intermediate layer is less than 7 μm, necessary performance such as strength and various barrier properties cannot be obtained, and processing suitability such as laminating is deteriorated, which is not preferable. Further, if the intermediate layer has a thickness of up to 50 μm, the above-mentioned improvement in strength and performance such as barrier properties are sufficiently satisfied. Absent.
[0022]
The method of laminating the intermediate layer 32 on the surface layer 31 can be performed by a known dry laminating method when the intermediate layer 32 is previously prepared in the form of a film.
[0023]
Next, the heat-sealing layer 33 is provided in the innermost layer of the laminated film, and when the laminated film is formed, it is thermally bonded with sufficient strength by the heat and pressure of the sealer. The heat fusion property to the adhesive base 10 is required. Also for direct contact with the contents. The physical properties against contents are also required.
As the heat sealing layer 33, a multilayer film formed by a coextrusion method or the like can be used.
[0024]
In such a heat-sealing layer 33, the same resin as that used when the spout main body 2 is molded, medium density polyethylene, linear low density polyethylene, polypropylene, or ethylene-α · polymerized using a single site catalyst. Polyolefins such as olefin copolymers can be used. The thickness of the heat-sealing layer of the pouch in the present invention is suitably about 50 to 200 μm. As a result of various researches on the material used as the heat-fusible layer, the above-mentioned polyolefin-based resin, which can withstand high-temperature conditions such as pressure heat sterilization as sterilization of the contents, A resin having a melting temperature of 110 ° C. or higher is selected. In the case of a heat fusion layer made of a resin having a melting temperature of less than 110 ° C., in the step of filling the contents and sterilizing under pressure and heat, the heat sealing part of the pouch or the adhesive base part of the spout main body In bonding, a peeling phenomenon may occur during the sterilization and the product may not be commercialized. The pressure heat sterilization conditions are cut in consideration of contents components, packaging units, set distribution conditions, etc., so the heat-sealed layer of the pouch has the sterilization heating conditions (temperature, Select and design one that can withstand time).
[0025]
When the thickness of the heat sealing layer 33 is less than 50 μm, it is not preferable because sufficient heat seal strength cannot be obtained. Further, even if the thickness exceeds 200 μm, the heat seal strength is not particularly increased, but rather, the time required for the heat seal becomes longer and the material cost increases, which is not preferable.
[0026]
In the present invention, the material of the hermetic seal material that is thermally bonded to the upper part of the spout body of the pouch spout has a heat-sealing layer that can be heat-bonded to the upper end of the spout body 2 and, if necessary, a surface layer. And a laminate of the intermediate layer and the like and the heat-fusible layer. The material of the surface layer and the intermediate layer is the same as that of the surface layer and the intermediate layer constituting the pouch body. It is desirable to use an easily openable resin for the heat sealing layer so that the user can easily peel it off.
[0027]
As a method for laminating the surface layer 31, the intermediate layer 32, and the heat fusion layer 33 of the pouch, lamination may be performed by a sandwich lamination method using a heat-adhesive resin, or a two-component curable urethane system. You may laminate by the dry laminating method using an adhesive agent.
In particular, when the content needs to be sterilized by retort, it is desirable to laminate by the dry laminating method using the two-component curable urethane adhesive.
[0028]
Also, As shown in FIG. It is desirable that the corners of the four end portions of the blocking prevention rib 17 have an arc shape so that the inner surface of the pouch is not damaged by the protrusions on the end of the rib. The obstruction prevention rib 17 may not be formed parallel to or perpendicular to both sides of the boat-shaped flange portion 12, in other words, it may be an extension piece provided at any position on the circumference in the adhesive base. If the ribs connecting the extension pieces facing each other and the ribs are extended to form an extended cross rib, the pouch can be prevented from being blocked when the contents are ingested. If it is possible to prevent the pouch from being blocked, which is one of the objects of the present invention, the width of the rib 4 pieces of the blocking prevention rib does not need to be a constant width in the length direction of the extension. It may be narrowed continuously toward the tip, may be narrowed stepwise, or a notch may be formed.
[0029]
Further, the cross-section of the blocking prevention rib is preferably a cross (four ribs) as described above, and in the three-rib shape, the angle between the ribs is too wide, which may hinder the blocking prevention effect. If the shape is 5 or more, the moldability is deteriorated. On the other hand, the blocking prevention effect is not different from that of the 4 ribs.
[0030]
【Example】
Next, the pouch spout of the present invention will be described in more detail with reference to examples.
<Outlet body> By injection molding using polypropylene (melting point 200 ° C.) FIG. 2 (a) The same shape of the spout main body (outlet tube inner diameter 9 mmΦ) was formed.
<Pouch and sealing seal material> The pouch equipped with the solid and high-viscosity material outlet is a side gusset type self-supporting pouch, and the material structure of the laminate constituting the pouch is PET12 / AD / AL9 / AD / ON15 / AD / CPP70, PET12 / AD / AL20 / AD / CPP40 as the sealing material, high-density polyethylene cap, and the spout body and cap are screwed together [abbreviated PET : Biaxially stretched polyester film, AL: aluminum foil, ON: biaxially stretched nylon film, CPP: unstretched polypropylene AD: SiOx: silica In addition, the number after the abbreviation indicates the thickness μm]
<Pouch Size> The following conditions were the same in both the examples and comparative examples illustrated as empty pouches with a width of 90 × height of 150 × side gusset extension of 50 mm or less.
Pouch Shape and size:
Consists of laminate material:
Outlet body tube inner diameter 9mmφ, tube length 40mm
Contents: 200 g of corn potage soup having a viscosity adjusted to 8000 cps (solid matter: including 20 g of meat chunk with an average diameter of 3.5 mm)
[Example 1]
<Blockage prevention rib>
4 extension pieces
Extension piece + Blocking prevention rib L = 65mm
Extension piece L1 = 40mm
Blocking prevention rib L2 = 25mm
<Contents> Konjac jelly 250g as a solid, the average particle diameter of konjac grains 2mmΦ
<Retort heating conditions> The package filled with the contents was placed in an autoclave and heated at 125 ° C for 25 minutes.
[Example 2] The contents were filled in a pouch equipped with the same solid matter and high-viscosity compatible spout as in Example 1.
<Blockage prevention rib>
2 extension pieces
Extension piece + Blocking prevention rib L = 65mm
Extension piece L1 = 35mm
Blocking prevention rib L2 = 30
<Contents> Beverage-containing beverage 250g, and as a solid, the average particle size of the grape grains 3mmΦ and 5mmΦ.
<Heating conditions> The contents heated to 90 ° C were filled from the spout and sterilized by heating at 90 ° C for 10 minutes.
Comparative Example 1
<Blockage prevention rib>
4 extension pieces
Extension piece + Blocking prevention rib L = 65mm
Extension piece L1 = 8mm
Blocking prevention rib L2 = 57mm
The conditions were the same as in Example 2 except for the shape and dimensions of the extension piece and the blocking prevention rib.
Comparative Example 2
<Blockage prevention rib>
4 extension pieces
Extension piece + Blocking prevention rib L = 65mm
Extension piece L1 = 10mm
Blocking prevention rib L2 = 55
The conditions were the same as in Example 2 except for the shape and dimensions of the extension piece and the blocking prevention rib.
<Occlusion Confirmation 1> Regarding the filling of the contents, there was no problem in Example 1, but in the comparative example, the filling from the spout was difficult because the grains hit the connecting portion. Moreover, the blockage | corrosion in taking-out did not generate | occur | produce in Example 1, However, In the comparative example 1, the konjac grain was hooked in the clearance gap between the extension pieces of a spout main body, and it was difficult to drink.
<Occlusion Confirmation 2> Regarding the filling of the contents, in Example 2, it was possible to fill from the spout without any problem with the grape particle size of 3 mm and 5 mm, but in Comparative Example 2, the grape particle size of 3 mm. In this case, the grains were applied to the connecting portion, and filling from the spout was quite difficult. Filling was not possible with a grape particle size of 5 mm. Therefore, in Comparative Example 2, an unsealed portion was formed at the bottom of the bag, and the contents had to be filled from the unsealed portion. Moreover, when it ingested from the pouch filled with each content, in Example 2, it was able to inhale without the obstruction | occlusion phenomenon. In Comparative Example 2, it was difficult to take out one having a particle size of 3 mm, and it was necessary to drink strongly. Those having a particle diameter of 5 mm could not be taken out.
[0031]
【Effect of the invention】
As described above, in the conventional pouch with a spout, since the four extension ribs are suspended below the adhesive base in order to extend the blocking prevention rib, for example, the inner diameter of the spout cylinder is reduced. In the case of 9 mmΦ, the content could contain only a solid material having a very small particle size (for example, about 0.5 to 1.5Φ), whereas in the solid material and high viscosity material corresponding spout of the present invention. Even if the inner diameter of the same spout tube portion is 9 mmΦ, by setting the length of the extension piece to be equal to or longer than the length of the blocking prevention rib, the particle size is, for example, about 6-8Φ, preferably 1-6 mmΦ Even when the solid material was added, no trouble was observed in filling and taking out (drinking etc.). Furthermore, the extension piece is made into two pieces, or in the cross-shaped cross-section prevention rib, the top angle of the plate-like body provided in the direction orthogonal to the plate-like body in the direction of suspending the extension piece By cutting off the corners, the filling and taking out (sucking etc.) can be made easier.
[Brief description of the drawings]
FIG. 1 shows a pouch spout according to the present invention. Basic configuration (A) Perspective view of a packaging body filled with a pouch spout and sealed with contents, (b) Perspective view showing structure of spout, (c) X1-X1 section sectional view, (d) ) A top view of the spout main body, (e) an enlarged view of the Y1 portion.
FIG. 2 is according to the invention. Example of pouch spout (A) is a perspective view, (b) is a top view of the spout main body, (c) is an enlarged view of the Y2 portion.
FIG. 3 is a perspective view for explaining a method of mounting the pouch spout of the present invention on the pouch.
[Fig. 4] FIG. (A) Front view, (b) Side view, (c) X2-X2 part sectional view, (d) X3-X3 part sectional view of the spout main body in FIG.
FIG. 5 is a cross-sectional view illustrating the configuration of a laminated body constituting a pouch to which the pouch spout of the present invention is attached.
FIG. 6 is a perspective view showing an example of a conventional pouch spout.

Claims (2)

The pouch main body is attached to the inside of the pouch main body, and in order from the pouch main body side , the spout main body , the elongated boat-shaped flange portion, and the spout tube portion are integrally molded with a synthetic resin, and the spout tube portion. in spout union body removable cap is mounted, the adhesive base bottom view as keep the adhesive to facilitate liquid tightness to the inside of the pouch is a shuttle shape, a pair below the adhesive base is suspended the extension piece, and communicates rack at the lower end of the pair of extended pieces, and the occlusion prevention rib extending downward is provided, the clogging prevention ribs and plate-like body and a vertical plate-like body extending from the extension piece there a spout for ing pouch provided cross cross shape, the length from the lower end of the adhesive base to the tip of the occlusion preventing rib is L, the length of the extension piece L1, the length of the occlusion preventing rib When L2 is L2 (L = L1 + L2) , L1 is ≧ L2, spout pouches, characterized by forming the portion cut off by cutting off the top portion corners of the lower end of the extension piece of the vertical plate-like body.   The pouch spout according to claim 1, wherein the number of the extension pieces is two.

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