JP2008168921A - Pouch with spout - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pouch with a spout for refilling, the pouch being designed to overcome the problem that when a fluid content such as a liquid is transferred to another container such as a bottle, the root of the spout is more likely to block on account of, especially, the high viscosity of the content as its quantity decreases, which would result in unsmooth pouring of the content. <P>SOLUTION: The pouch (10) has the spout (1) between both side sealing parts (4a and 4b) sealing two sheets of synthetic resin films (11a and 11b). In the pouch (10), a projecting swelling part (7) is formed on the outside of the passage of the spout (1) along a center line (3a). A concaved recessed part (8) is formed at the root part directly below and near the intersection (P) with a straight line (3b) connecting the center line (3a) of the spout (1) and the parts (5a and 5b) from which the spout extends upward. Further, the projecting sewlling part (7) is formed on the outside of an L-shape or arch-shape in the pouch (10) in its inward direction so as to surround the recessed part (8). <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention seals and packs fluid contents such as liquids, solid-liquid mixtures, viscous bodies, powders, granules and solids, and transfers the contents to other containers during use. This relates to a pouch with a mouth. More specifically, when transferring the contents to another container such as a bottle, the viscosity of the contents is particularly high. The present invention relates to a pouch with a spout for refilling which has improved the state where the pouring property is deteriorated. This is particularly effective in the case of a pouch having a narrow shape with an opening width of the spout of 20 mm or less.

  Conventionally, it has been pointed out that plastic bottles are liable to cause an increase in garbage and environmental destruction by performing disposal when they are not needed. Under these circumstances, in recent years, materials that take into account the impact on the environment for refilling are used for products such as kitchen detergents, laundry detergents, shampoos, rinses, body soaps, etc. Packaging bags (pouches) of liquids, solid-liquid mixtures, viscous bodies, powders, granules, solids, etc. using soft packaging materials selected from the above have been used.

  While this pouch is excellent in compressibility and flexibility, it has poor shape retention as a container. Also, the pouch is self-supporting when the product is displayed at the store, etc., content pouring property, impact resistance, handle function, etc. There was a problem.

  On the other hand, plastic molded containers such as plastic bottles have excellent handling properties when used, but their compressibility and flexibility when not in use are impaired, and the molding process of the container and the filling of the contents In the process, there were difficulties such as requiring large-scale equipment.

  For example, in the field of liquid containers, as a container that replaces bottles and PET bottles, paper packs that form a box-shaped container by bonding paper and film are used. In this case, the outer shape of the container is retained. As a means to do this, expensive paper must be used, which is costly and has a heavy environmental burden.

  Therefore, in recent years, pouches with spouts that take into account the independence at the time of product display and the ability to pour out contents have been adopted in a variety of fields of use, from refills for single-use use to those with resealability. .

  For example, as this pouch, the surface film and the back film are bonded together, or the surface film and the back film are bonded together with the bottom film for the bottom part interposed therebetween, There is a so-called standing pouch in which the pouch is flattened after the contents have been poured out.

  In these pouches, the upper corner of the pouch is used as a spout, and when transferring the contents, the spout is cut and opened, and the spout is inserted into the opening of the bottle container. ing. As such a refilling pouch, it is required that the contents can be easily taken out and the contents can be taken out while maintaining a stable flow to the end. For this reason, there are ones in which a hollow cylindrical nozzle made of synthetic resin or the like is attached in advance to the spout part, or ones in which a space part due to the rising of the film is formed in the spout part.

  These devices have been made for the purpose of stably taking out the contents. First, in the case where a hollow cylindrical nozzle made of a synthetic resin or the like is attached to the spout portion in advance, A special process for arranging the nozzles is required, which increases the cost. And in the obtained pouch, the nozzle arrangement | positioning part of a spout part will be in the state raised greatly, and packing will become unstable. Also, extra space is required when transporting or storing a large amount of pouches before filling. On the other hand, in the case where a space portion due to the rising of the film is formed in the spout portion, the spout portion is easily bent, and the spout passage through which the contents pass is not stable at the time of spout.

  Therefore, a nozzle part is provided in a packaging bag formed by heat-sealing a plastic film, a central mountain fold line is provided at the center of the nozzle part, and the central mountain fold line is directed to the inside of the packaging bag beyond the nozzle part. A packaging bag with a pouring function has been proposed in which a mountain fold inclination line is formed from the upper end of the central fold line, and a fold inclination line is formed from the lower end of the central mountain fold line so as to be directed toward the side end portion of the nozzle portion. (For example, refer to Patent Document 1). In addition, a packaging bag with a dispensing function has been proposed in which a mountain fold line and a valley fold line are provided in this order from the root portion of the nozzle portion or the vicinity thereof toward the inside of the packaging bag (see, for example, Patent Document 2). However, in these proposals, the tip part of the nozzle part is formed in a mountain fold, but the pour spout opens only from these points, and the spout is prevented from being crushed, that is, from the packaging bag to the bottle container. There is no mention of measures to block at the base of the spout when refilling.

Prior art documents are shown below.
JP 2002-370754 A Japanese Patent No. 3336966

  The present invention is intended to solve such problems of the prior art, and when transferring a fluid content such as a liquid to another container such as a bottle, the viscosity of the content is particularly high, An object of the present invention is to provide a pouch with a spout for refilling which is easy to block at the base of the spout when the amount thereof is reduced, and has improved the state in which the pourability of the contents is deteriorated.

  The present invention has been made to solve the above-mentioned problems, and the invention according to claim 1 of the present invention provides both side seal portions (4a, 4b) of two synthetic resin films (11a, 11b). In the pouch (10) having a spout (1) between them, a convex bulge portion (7) is provided on the center line (3a) of the spout (1) flow path, and the spout ( 1) Concave depression (8) at the base portion immediately below the intersection (P) between the center line (3a) of the flow path and the straight line (3b) connecting the rising portions (5a, 5b) of the spout shape And a convex bulge portion (7) is formed outside the L-shape or arch shape so as to surround the hollow portion (8) in an inward direction of the pouch (10). A pouch with a spout.

  The invention according to claim 2 of the present invention is the pouch with spout according to claim 1, wherein the apex of the convex bulge portion (7) provided on the center line (3a) of the spout (1) flow path. A pouch with a spout is characterized in that one or more bent lines (9) are formed in the part.

  The invention according to claim 3 of the present invention is the pouch with spout according to claim 1 or 2, wherein the convex bulge portion (7) has a polygonal shape such as a dome shape, a hexagonal shape or an octagonal shape. It is a pouch with a spout characterized by being.

The invention according to claim 4 of the present invention is the pouch with spout according to any one of claims 1 to 3, wherein the height of the convex bulge portion (7) is 1.0 to 4.0 mm. It is a pouch with a spout characterized by being in the range.

  The invention according to claim 5 of the present invention is a pouch with spout, wherein the shape of the pouch with spout according to any one of claims 1 to 4 is a standing pouch.

  The pouch with a spout of the present invention is a pouch having a spout between both side seal portions of two synthetic resin films, and has a convex bulge portion on the center line of the spout flow path, and the pouch A concave depression is provided at the base portion near the intersection of the center line of the spout flow path and the straight line connecting the rising portions of the spout shape, and the depression is surrounded inwardly by the pouch. By forming a convex bulge on the outside of the L-shape or arch shape, the viscosity of the contents is particularly high when transferring fluid contents such as liquids to other containers such as bottles. Even if the amount is reduced, the base of the spout is not blocked, and the contents can be safely and easily transferred to the end without spilling out. This is particularly effective in the case of a pouch having a narrow shape with an opening width of the spout of 20 mm or less.

  Embodiments of the present invention will be described in detail with reference to FIGS.

  FIG. 1 is a plan view showing an embodiment of a pouch with a spout according to the present invention, FIG. 2 is an enlarged view of a main part of one embodiment of the pouch with a spout according to the present invention, and FIG. FIG. 4 is a plan view showing another embodiment of the pouch with spout according to the present invention, FIG. 4 is an enlarged view of the main part of another embodiment of the pouch with spout according to the present invention, and FIG. 2 and FIG. 4 are cross-sectional views taken along the line X-X of FIG. 2, FIG. 6 is a cross-sectional view taken along the line Y-Y of FIGS. 2 and 4, and FIG. It is a sectional side view which shows one Example of the laminated constitution of the laminated | multilayer film to do.

  The pouch with spout (10) according to one embodiment of the present invention is a hermetically packaged content having fluidity such as liquid, solid-liquid mixture, viscous body, powder, granule, solid, etc. A pouch with a spout for refill that is used after being transferred to a container, and as shown in FIG. 1, is poured between the seal portions (4a, 4b) on both sides of the two synthetic resin films (11a, 11b). In the pouch (10) having the mouth (1), a convex bulge (7) is provided on the center line (3a) of the spout (1) flow path, and the spout (1) flow path. A concave depression (8) is provided at the base portion immediately below the intersection (P) of the straight line (3b) connecting the center line (3a) and the spout-shaped rising portions (5a, 5b), The pouch (10) has an L-shaped outer convex so as to surround the recess (8) in the inward direction. A spout pouch characterized (10) that is formed Rami part (7).

  As shown in FIG. 2, by providing an outwardly convex bulge (7) on the center line (3a) of the spout (1) flow path, the shape is restored even if it is crushed by absorbing force from the outside. Therefore, as shown in FIG. 5, a flow path is secured, a stable dispensing direction and a dispensing amount can be obtained, and a stable pouring property can be obtained. Further, by forming one or more bent lines (9) at the apex of the convex bulge (7) provided on the center line (3a) of the spout (1) flow path, Since rigidity can be given, since stable pouring property is obtained, it is preferable.

The cross-sectional shape of the convex bulge portion (7) is a polygonal shape such as a dome shape, a hexagonal shape, or an octagonal shape, and the height (depth) of the convex bulge portion (7) is 1. It is preferably within a range of 0 to 4.0 mm. When the height is less than 1.0 mm, the formed flow path is too narrow, and particularly when the content has a high viscosity, the flow of the content is blocked and does not move smoothly. On the other hand, if it exceeds 4.0 mm, the force that absorbs the force from the outside and the rigidity to restore the shape is weakened even if it is crushed, the stable pouring direction and quantity cannot be obtained, and the stable pouring property is obtained. It becomes impossible.

  Further, at the root portion near the intersection (P) between the center line (3a) of the spout (1) flow path and the straight line (3b) connecting the rising portions (5a, 5b) of the spout shape, FIG. As shown in FIG. 2, a concave depression (8) is provided, and further, an inwardly convex bulge (7) is formed so as to surround the depression (8) inward of the pouch (10). By forming the pouch (10), when the pouch (10) is grasped, the root portion swells, the concave depression (8) forms an L shape, and the spout (1) tip opens. .

  With such a pouch with a spout (10) of one embodiment of the present invention, even if the viscosity of the content is high and the amount thereof is reduced, the root of the spout (1) is not blocked. The contents can be safely and easily transferred to another container such as a bottle without spilling out. In particular, it is effective in the case of a pouch (10) having a narrow shape with an opening width of a spout of 20 mm or less.

  Next, a pouch with a spout (10) according to another embodiment of the present invention hermetically packs a fluid content such as a liquid, a solid-liquid mixture, a viscous body, a powder, a granule, a solid, and the like. A pouch with a spout for refill that is used by transferring the contents to another container, and as shown in FIG. 3, seals on both sides (4a, 4b) of two synthetic resin films (11a, 11b) In the pouch (10) having a spout (1) between them, a convex bulge portion (7) is provided on the center line (3a) of the spout (1) flow path, and the spout ( 1) Concave depression (8) at the base portion immediately below the intersection (P) between the center line (3a) of the flow path and the straight line (3b) connecting the rising portions (5a, 5b) of the spout shape And an arch-shaped so as to surround the recess (8) inward of the pouch (10). A spout pouch, characterized in that to form bulging portions of convex (7) on the side (10).

  As shown in FIG. 4, by providing a convex bulge part (7) on the outside on the center line (3a) of the spout (1) flow path, the shape is restored even if it is crushed by absorbing force from the outside. Therefore, as shown in FIG. 5, a flow path is secured, a stable dispensing direction and a dispensing amount can be obtained, and a stable pouring property can be obtained. Further, by forming one or more bent lines (9) at the apex of the convex bulge (7) provided on the center line (3a) of the spout (1) flow path, Since rigidity can be given, since stable pouring property is obtained, it is preferable.

  The cross-sectional shape of the convex bulge portion (7) is a polygonal shape such as a dome shape, a hexagonal shape or an octagonal shape, and the height (depth) of the convex bulge portion (7) is 1.0. It is preferable to be within a range of ˜4.0 mm. When the height is less than 1.0 mm, the formed flow path is too narrow, and particularly when the content has a high viscosity, the flow of the content is blocked and does not move smoothly. On the other hand, if it exceeds 4.0 mm, the rigidity that restores the shape is weakened even if it is crushed by absorbing force from the outside, and it is impossible to obtain a stable pouring direction and quantity, and a stable good pouring property. Cannot be obtained.

  Further, at the root portion near the intersection (P) between the center line (3a) of the spout (1) flow path and the straight line (3b) connecting the rising portions (5a, 5b) of the spout shape, FIG. As shown in FIG. 5, a concave depression (8) is provided, and a convex bulge (7) is formed on the outside of the arch so as to surround the depression (8) in the inner direction of the pouch (10). By forming the pouch (10), when the pouch (10) is gripped, the root portion swells, the concave recess (8) is arched, and the tip of the spout (1) opens.

  With such a pouch with a spout (10) according to another embodiment of the present invention, in particular, the viscosity of the content is high, and even if the amount is reduced, the root of the spout (1) is not blocked, The contents can be safely and easily transferred to another container such as a bottle without spilling out. This is particularly effective in the case of a pouch having a narrow shape with an opening width of the spout of 20 mm or less.

  The outwardly convex bulges (7) provided on the center line (3a) of the spout (1) channel are preferably formed on both sides of the pouch (10) as shown in FIG. Furthermore, it is more preferable that they are arranged at positions overlapping each other.

  Similarly, as shown in FIG. 6, the concave depression (8) and the L-shaped or arch-shaped convex bulge (7) provided so as to surround the depression (8) are provided. It is preferable to form both sides of the pouch (10), and more preferably, the pouches (10) are arranged at positions overlapping each other.

  Next, the convex bulge part (7), the concave dent part (8), and the dent part (8) which are provided on the center line (3a) of the spout (1) flow path are surrounded. In the method of forming the convex bulge portion (7) on the outside of the L shape or the arch shape provided as described above, a laminated film made of a synthetic resin film constituting the pouch (10) is heated before bag making. , A method of processing the bulge part (7) and the hollow part (8) by pressing a jig of a predetermined shape, or a vacuum forming method or a compressed air / vacuum forming method in which deep drawing is performed using vacuum or compressed air and then cooled. Etc. can be used. The laminated film provided with the convex bulge portion (7) and the concave dent portion (8) by such a processing method is formed into a bag by a bag making machine, and after filling the contents, the filling port is heat-sealed. Sealed.

  In the spout (1) of the pouch (10) with a spout of the present invention, it is necessary to form an easy-opening processing part (2) for pouring the contents from the pouch (10). Examples of such an easy-open processing part (2) include an I-type or V-type notch at the end of the pour spout (1) of the pouch (10), and a perforation or half cut that crosses the spout (1). Apply lines. Examples of the method for forming such an easy-open processing part (2) include laser processing, mechanical processing using a blade, thermal processing using a heat bar, and the like.

  In the case of forming the easy opening part (2) such as a perforation crossing the spout (1), the easy opening part (2) that completely penetrates the laminated film is formed. Depending on the type of contents filled in (10), the contents may leak or drop strength after filling the contents may be unfavorable. In such a case, the occurrence of such a problem can be prevented, for example, by subjecting only the outermost layer film constituting the laminated film to an easy opening process.

  In addition, when the pouch (10) is composed of a laminated film, depending on the type of synthetic resin film used as the inner layer film extending to the outer layer (for example, when a nylon film is used as the outer layer and a linear low density polyethylene is used as the inner layer) When the easy opening part (2) is formed only on the outer layer film, the cut end surface of the inner layer film is not cut cleanly at the time of opening, and the spout (1) is stretched or lapped May be. When the spout (1) is in such a state, the flow path is disturbed at the time of pouring, and it becomes difficult to pour the contents stably.

Such a problem can be solved by subjecting not only the outer layer film but also the inner layer film to easy opening. In order to perform an easy-opening process on the inner layer film, it can be processed from the inner layer film side of the laminated film by laser processing, mechanical processing with a blade, thermal processing with a heat bar, or the like. Moreover, you may make it form the easy opening process which penetrates an outer layer film from the outer layer film side, and reaches an inner layer film.

  Formation of this easy-opening process part (2) can be performed simultaneously with a slitter process, for example, and can also be performed at the time of bag making by a bag making machine. Moreover, it can also carry out beforehand to the film which comprises an outer layer or / and an inner layer before lamination of a laminated | multilayer film.

  Next, as shown in FIG. 7, the pouch with spout (10) comprises at least an outermost film base material layer (12) and an innermost sealant layer (14) as an adhesive layer (13). It is formed with a laminated film formed by lamination.

  Examples of the material of the outermost film base layer (12) include polyesters such as polyethylene terephthalate (PET), polyethylene naphthalate (PEN), and polybutylene terephthalate (PBT), polyethylene (PE), polypropylene ( PP), polyolefins such as polystyrene (PS), polyamides (PA) such as nylon-6 and nylon-66, polycarbonate (PC), polyacrylonitrile (PAN), polyimide (PI), polyvinyl chloride (PVC), polychlorinated Stretched or unstretched films such as vinylidene (PVDC), polyvinyl alcohol (PVA), ethylene-vinyl alcohol copolymer (EVOH), polyether sulfone (PES), polymethyl methacrylate (PMMA), etc. can be used.

  The thickness of the film base layer (12) is preferably in the range of 10 to 50 μm and more preferably in the range of 10 to 30 μm in consideration of processability.

  Next, the innermost sealant layer (14) includes, for example, a low density polyethylene resin (LDPE), a medium density polyethylene resin (MDPE), a high density polyethylene resin (HDPE), and a linear low density polyethylene resin (L- LDPE), polypropylene resin (PP), ethylene-propylene copolymer (EP), ethylene-α olefin copolymer, ethylene-acrylic acid copolymer (EAA), ethylene-methacrylic acid copolymer (EMAA), ethylene -A resin such as a methacrylic acid ester copolymer, an ethylene-acrylic acid ester copolymer, an ionomer resin, an ethylene-vinyl acetate copolymer (EVA), or a film obtained by forming a film of these resins can be used. .

  The thickness of the sealant layer (14) is preferably in the range of 15 to 200 [mu] m, more preferably in the range of 30 to 170 [mu] m in consideration of heat seal strength, workability, and the like.

  Next, a method of forming a laminated film obtained by laminating the outermost film base material layer (12) and the innermost sealant layer (14) via the adhesive layer (13) is, for example, a dry lamination method. Known methods such as a non-solvent dry lamination method, a hot melt lamination method, an extrusion lamination method, and a sandwich lamination method using the extrusion lamination method can be used.

  Next, the laminated film may have a configuration in which a barrier layer is laminated on one side or both sides of the film base layer (12) (not shown).

Examples of the barrier layer include an aluminum foil, an aluminum vapor-deposited film, a resin film having a thin film of an inorganic oxide (silicon oxide, aluminum oxide, etc.), an ethylene / vinyl alcohol copolymer (EVOH), polyvinyl alcohol (PVA), Films of saponified ethylene-vinyl acetate copolymer or films obtained by coating polyvinylidene chloride (PVDC) on polyethylene terephthalate (PET), polyamide (PA), polyvinyl alcohol, saponified ethylene-vinyl acetate copolymer, etc. In addition, a laminated material combining one or more of these films can be used.

  The laminated film may include a printed layer (not shown), an anchor coating layer (not shown), etc. in addition to the above-described configuration.

  First, when a printing layer is provided on the film substrate layer (12), the printing surface of the film can be printed on either the front or back side. However, as in the case of printing on a general plastic film bag, In consideration of friction properties, weather resistance, etc., it is preferable to provide a print layer with a beautiful pattern on the inner surface of the film for the purpose of improving the sales promotion effect of the product.

  The printing ink for forming the printing layer includes a color material composed of a pigment or a dye that gives color to the ink, a resin that adheres to the substrate while the color material is dispersed and held in fine particles, and the resin. A vehicle composed of a solvent that can stably dissolve, disperse the pigments and dyes, maintain the fluidity of the ink, and transfer an appropriate amount of ink from the printing plate, and further disperse the coloring material. The pigment is formed from an auxiliary agent such as a surfactant for the purpose of improving color development, preventing precipitation, and improving fluidity. In particular, the colorant is preferably a pigment having good weather resistance.

  As a printing method for providing the printing layer, a gravure printing method, a flexographic printing method, a silk screen printing method, or the like can be used.

  In addition, when printing on the said film base material layer (12), in order to improve the adhesiveness of this film base material layer (12) and printing ink, if necessary, the printing layer of this film base material layer (12) is formed. The surface to be provided is preferably subjected to pretreatment such as ozone treatment or corona treatment, and may further be coated with an anchor coating agent or the like.

  A method for producing the pouch with spout (10) of the present invention produced using the laminated film made of the film base layer (12) and the sealant layer (14) produced as described above will be described.

  The shape of the main body portion of the pouch with spout (10) of the present invention is not particularly limited. For example, a three-side seal type pouch, a four-side seal type pouch, a standing pouch, a gusset pouch, and the like are used. However, in consideration of display properties, display properties, etc. at the point of sale, a standing pouch is preferable.

  Depending on the type of pouch to be used, the corresponding bag making machine is used, and the spout (1), I-type or V-type notch, perforation or half-cut line crossing the spout (1) The means for forming the easy opening portion (2) such as the above, and the pouring spout (1) of the pouring spout (1) on the center line (3a) of the flow path, the bulging portion (7) protruding outward and the concave shape Or a processing device for forming a convex bulge portion (7) on the outside of the L-shape or arch shape provided so as to surround the dent portion (8), or By preparing separately as an off-line, the pouch (10) can be easily manufactured.

  Hereinafter, the pouch (10) with a spout of the present invention will be described in more detail with specific examples, but is not limited thereto.

<Example 1>
As shown in FIG. 7, the laminated film used for the spout with pour spout (10) of the present invention has a biaxially stretched nylon film (ON) having a thickness of 15 μm for the outermost film base layer (12). The innermost sealant layer (14) uses a low-density polyethylene film (LDPE) with a thickness of 130 μm, and the adhesive layer (13) uses a urethane-based adhesive with a dry lamination method. Produced.

  Using the laminated film composed of the film base layer (12) and the sealant layer (14) produced as described above, as shown in FIG. 1, the pouch (10) size is the finished size, and the width is 140 mm. X A spout (1) having a height of 230 mm is in the upper left part, and a hexagonal convex shape having a height of 2 mm on the outside having two bent lines on the center line (3a) of the spout (1) flow path. Immediately below the intersection (P) between the center line (3a) of the spout (1) channel and the straight line (3b) connecting the spout-shaped rising parts (5a, 5b) A circular concave depression (8) having a size of φ12 mm and a depth of 2 mm is provided in the vicinity of the base, and an L-shape is formed so as to surround the depression (8) inward of the pouch (10). A hexagonal convex bulge (7) with a height of 2 mm is formed outside A pouch with a spout (10) of Example 1 having a tunding pouch shape was produced.

  Next, 320 ml of water and shampoo were filled and sealed in this pouch (10) with a spout, respectively, to obtain a pouch (10) containing 320 ml of water and a pouch (10) containing 320 ml of shampoo.

<Example 2>
In Example 1, a hexagonal convex shape having a height of 2 mm on the outside having two bent lines provided on the center line (3a) of the spout (1) channel in an empty state before filling the contents A pouch with a spout (10) of Example 2 was produced in the same manner as in Example 1 except that 2 kg and a load for 1 minute were applied to the bulge part (7).

  Next, 320 ml of water and shampoo were filled and sealed in this pouch (10) with a spout, respectively, to obtain a pouch (10) containing 320 ml of water and a pouch (10) containing 320 ml of shampoo.

  Below, the comparative example of this invention is demonstrated.

<Comparative Example 1>
In Example 1, the hollow part (8) and the L-shaped convex bulge part (7) are not formed in the root part of the spout (1), and the center line (3a of the spout (1) channel is formed. ) A pouch with spout (10) of Comparative Example 1 in the same manner as in Example 1 except that a hexagonal convex bulge (7) having a height of 2 mm is provided on the outside having two bent lines on the top. Was made.

  Next, 320 ml of water and shampoo were filled and sealed in this pouch (10) with a spout, respectively, to obtain a pouch (10) containing 320 ml of water and a pouch (10) containing 320 ml of shampoo.

<Comparative example 2>
In Comparative Example 1, a hexagonal convex shape having a height of 2 mm on the outside having two bent lines provided on the center line (3a) of the spout (1) flow path in an empty state before filling the contents A pouch with a spout (10) of Comparative Example 2 was produced in the same manner as in Comparative Example 1, except that 2 kg and a load for 1 minute were applied to the bulge part (7).

  Next, 320 ml of water and shampoo were filled and sealed in this pouch (10) with a spout, respectively, to obtain a pouch (10) containing 320 ml of water and a pouch (10) containing 320 ml of shampoo.

<Evaluation>
Each pour time was measured using the pouch (10) containing 320 ml of water and the pouch (10) containing 320 ml of shampoo in the pouch (10) obtained in Examples 1 and 2 and Comparative Examples 1 and 2. The results are shown in Table 1.

表１は、実施例１、２および比較例１、２で得られたパウチ（１０）に水３２０ｍｌ入れたパウチ（１０）とシャンプー３２０ｍｌ入れたパウチ（１０）を用いたそれぞれの注出時間の測定結果を示す表である。

Table 1 shows the pour time for each of the pouches (10) obtained in Examples 1 and 2 and Comparative Examples 1 and 2 using 320 ml of water and 320 ml of shampoo (10). It is a table | surface which shows a measurement result.

<Evaluation results>
In Example 1, in the case of the pouch (10) containing 320 ml of water, it was not clogged at the base of the spout (1), and the pouring time was as short as 15 seconds. Also, the pouch (10) containing 320 ml of shampoo was good in a short time of 35 seconds. In Comparative Example 1, in the case of a pouch (10) containing 320 ml of water, the pouring time is as long as 60 seconds, and in the pouch (10) containing 320 ml of shampoo, the pouch (10) is blocked at the base of the spout (1) and poured out. I could not.

  In Example 2, in the case of the pouch (10) containing 320 ml of water, the pour time was as short as 20 seconds without clogging at the base of the spout (1). Also, the pouch (10) containing 320 ml of shampoo was good in a short time of 40 seconds. In Comparative Example 2, in the case of a pouch (10) containing 320 ml of water, the pouring time is as long as 60 seconds, and in the pouch (10) containing 320 ml of shampoo, the pouch (10) is blocked at the base of the spout (1) and poured out. I could not.

It is a top view which shows one Example of the pouch with a spout which concerns on this invention. It is a principal part enlarged view of 1 Example of the pouch with a spout which concerns on this invention. It is a top view which shows the other Example of the pouch with a spout which concerns on this invention. It is a principal part enlarged view of the other Example of the pouch with a spout which concerns on this invention. FIG. 5 is a sectional view taken along line XX in FIGS. 2 and 4. FIG. 5 is a cross-sectional view taken along line YY in FIGS. 2 and 4. It is a sectional side view which shows one Example of the laminated constitution of the laminated film used for the pouch with a spout which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Spout 2 ... Easy-opening processing part 3a ... Center line 3b ... Straight line 4a ... Side seal part 4b ... Side seal part 5a ... Rising part 5b ... Rising Part 6a ... Inner end 6b ... Inner end 7 ... Convex bulge part 8 ... Concave depression part 9 ... Bending line 10 ... Pouch 11a ... Synthetic resin film 11b .... Synthetic resin film 12 ... Film base layer 13 ... Adhesive layer 14 ... Sealant layer P ... Intersection

Claims (5)

  In a pouch having a spout between both side seal portions of two synthetic resin films, a convex bulge portion is provided on the center line of the spout channel, and the pour channel and the center line of the pour channel are poured. A concave recess is provided at the base portion immediately below the intersection with the straight line connecting the rising portions of the mouth shape, and an L-shaped or arch-shaped outer side is provided so as to surround the recess inward of the pouch. A pouch with a spout, characterized in that a convex bulge is formed on the pouch.   The pouch with pour spout according to claim 1, wherein one or more bent lines are formed at the apex of the convex bulge provided on the center line of the pour spout channel.   The pouch with a spout according to claim 1 or 2, wherein a cross-sectional shape of the convex bulge portion is a polygonal shape such as a dome shape, a hexagonal shape or an octagonal shape.   The pouch with a spout according to any one of claims 1 to 3, wherein the height of the convex bulge is in the range of 1.0 to 4.0 mm.   A pouch with a spout, wherein the shape of the pouch with a spout according to any one of claims 1 to 4 is a standing pouch.

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