JP2003252349A - Packaging container having spout - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging container having spout for storing a liquid detergent or the like, which ensures steady discharge of the contents without causing bent of a spout during refilling of the contents into the other bottle or the like, and is free of an increase of a production cost. <P>SOLUTION: The packaging container 1 having spout is formed such that two side sheets 10, front and back, made of a rectangular composite film the innermost layer of which is a sealant layer, are sealed on the sealant layers along the side edges 12 and upper edges 16 of the sheets 10, and a projecting nozzle portion 50 having a cutting line 20a is formed at one of the corners of the upper end. In the packaging container 1, rods of solid resin 30 formed from a ultraviolet curing type resin or the like are formed on the external surfaces of the front and back side sheets 10 and substantially along a center line CL extending inward from the leading end of the nozzle portion 5. The leading ends of the rods of solid resin 30 are situated slightly inside the cutting line 20a and the terminal points of the rods are situated a predetermined distance inside the container from the base line 32a of the nozzle portion. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging bag for storing liquid detergent, shampoo, etc., and more particularly to a packaging container for refilling having a spout for refilling contents into another container, Regarding the shape of the spout.

[0002]

2. Description of the Related Art In recent years, due to environmental problems related to the increase of waste, for the purpose of resource saving and reduction of waste, a peripheral edge of a plastic film-based laminated packaging material of two or more layers is heat-bonded to form a liquid. As a bag for storing toiletries such as detergent and shampoo, when using it, the protruding spout is cut with scissors and the contents are easily poured into a plastic bottle with a pump dispenser, for example, with a spout that can be refilled A lot of refill bags (mostly self-standing standing pouches) are used.

As the above-mentioned refill bag with a spout, it is required that the contents can be easily poured out and the contents can be poured out while maintaining a stable flow until the end. As such a refill bag with a spout, as disclosed in, for example, Japanese Patent Laid-Open No. 5-13269, a hollow cylinder made of plastic is formed on the inner surface of the spout projecting at the corner of a soft resin film packaging bag. With a nozzle-shaped nozzle, and Japanese Patent Laid-Open No. 8-25
As disclosed in Japanese Unexamined Patent Publication No. 38-38, there is one in which a hollow (semi) cylindrical spouting conduit is formed on the inner surface of a spout that protrudes at the corner of a soft resin film packaging bag.

However, in the case where the hollow molding made of plastic is provided on the inner surface of the spout, a special step such as heat fusion for molding and attachment of the molding is required, so that the cost is high and the heat fusion is high. There has been a problem that pinholes are generated in the resin film packaging bag due to heating and pressurization in the wearing process.

In order to solve the above-mentioned cost increase, for example, as disclosed in JP-A-6-127560, a soft resin film packaging bag is swollen outward at a spout projected at a corner. Those provided with a bulge, JP-A-7-2260 and JP-A-11-114.
As disclosed in Japanese Unexamined Patent Publication No. 98-9898, an opening assisting mechanism formed by embossing outwardly on a center line of a spout projecting at a corner of a soft resin film packaging bag and an outwardly convex adjacent to both sides thereof. Some have a bending prevention mechanism that is embossed.

However, in the case where the soft resin film spout is provided with a convex embossing as a bulge outwardly bulging, there is a problem that the manufacturing cost increases and a pinhole is generated in the packaging bag. However, after all, since it is an opening assist mechanism and a bending prevention mechanism by embossing a soft resin film, it is easy for the bending point to bend at the spout, especially when trying to pour with strong pressure There was a problem that the spout would be blocked from the starting point.

[0007]

SUMMARY OF THE INVENTION The present invention is to solve the above-mentioned problems of the prior art. The problem is to provide a packaging container with a spout for storing contents such as liquid detergent and shampoo. , When refilling the contents into other bottles, etc., the contents can be stably poured out without clogging due to breakage at the pouring outlet, and the manufacturing cost does not increase It is to provide a packaging container with a spout that does not have a pinhole or the like.

[0008]

In order to achieve the above object in the present invention, first, in the invention of claim 1, at least the innermost layer is a sealant layer, and two front and back surfaces made of a rectangular composite film are used. The side sheet is sealed by both side edges and the sealant layer surface of the upper edge, and has a protruding nozzle portion as a spout for pouring out the contents by cutting the tip with a cutting line at one corner end of the upper edge. Then, in a packaging container with a spout, in which a bottom sheet having substantially the same configuration as the side sheet is sealed at a sealant layer surface of a lower edge of the side sheet made of the composite film, it projects at one end of the upper edge. A rod-shaped solid resin is formed on at least one of the inner surface and the outer surface of the two front and back side sheets along a substantially central line extending from the tip of the nozzle portion to the inside of the packaging container. Out It is obtained by the attached packaging container.

According to the first aspect of the present invention, two side sheets of the front and back sides are formed along a substantially center line extending from the tip of the nozzle portion projecting to one end of the upper edge of the container to the inside of the packaging container. By forming a rod-shaped solid resin on at least one of the inner surface or the outer surface, when filling the contents into other bottles, etc., the contents will not be blocked due to breakage at the pouring outlet and the contents will be stable. Since the product can be poured out and the rod-shaped solid resin can be formed on at least one of the inner surface and the outer surface of the side sheet by coating or discharging, the manufacturing cost does not increase for processing into the spout, and the packaging container It is possible to provide a packaging container with a spout having no pinhole or the like.

Further, in the invention of claim 2, the tip of the rod-shaped solid resin is slightly inside the cutting line of the tip of the nozzle portion, and the end point thereof has a predetermined length from the base line of the nozzle portion protruding from the cutting line. It is located inside the container at.
It is the packaging container with the spout described.

According to the second aspect of the present invention, since the tip of the rod-shaped solid resin is slightly inside the cutting line at the tip of the nozzle portion, the rod-shaped solid resin interferes with the opening of the spout. Can be easily opened without
By arranging the end point of the rod-shaped solid resin inside the container with a predetermined length from the base line of the nozzle portion that is easily broken, it is possible to prevent the nozzle portion from being broken from the vicinity of the base portion.

Further, in the invention of claim 3, the rod-shaped solid resin is an ultraviolet curable resin, a hot melt resin or a melt extruded polyethylene resin, and the spout according to claim 1 or 2. It is an attached packaging container.

According to the third aspect of the present invention, the rod-shaped solid resin is an ultraviolet-curable resin, a hot-melt resin or a melt-extruded polyethylene resin, and the solid resin is formed by discharge or coating. Since it can be easily bonded and formed on the nozzle portion of the packaging container by irradiation with ultraviolet rays or cooling, it is possible to provide a packaging container with a spout that does not increase the manufacturing cost.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. The present invention relates to, for example, a packaging container (1) with a spout for storing a liquid detergent or the like as shown in the perspective view of FIG.
Both side edges (12) and upper edges (1) of the side sheet (10)
6) A protruding seal portion which is sealed by the sealant layer surface and serves as a spout (20) for pouring out the contents by cutting the tip with a cutting line (20a) at one corner end of the upper edge (16). (22) and a non-bonding part (23) have a nozzle part (50), and the lower edge (1) of the side sheet (10) is
4) The shape of the nozzle portion (50) of the packaging container with a spout (1) in which the bottom sheet (18) is sealed with the sealant layer surface of (4).

Therefore, first, in the invention according to claim 1, as shown in the front view of FIG. 1, for example, a nozzle portion (50) protruding from one corner end of the upper edge (16) of the packaging container is provided. The rod-shaped solid resin is formed on the outer surface of the nozzle portion (50) along the center line (CL) extending from the tip to the inside of the packaging container.
As shown in the cross-sectional view of FIG. 2 showing the B-B plane, the rod-shaped solid resin (30) is formed on the outer surfaces of the two side sheets (10) on the front and back sides. The solid resin (30) can be formed only on the outer surface of one side sheet (10) of the two front and back sheets.

Further, as shown in the front view of FIG. 3, the formation of the rod-shaped solid resin (30) is performed by the nozzle portion (5
0) Center line (CL) extending from the tip to the inside of the packaging container
A solid resin (30) in the form of a rod is formed on the inner surface of the nozzle portion (50) along the line of FIG.
As shown in the cross-sectional view of FIG. 4, which shows the surface, each rod-shaped solid resin (3
0) may be formed, and the rod-shaped solid resin (30) may be formed only on the inner surface of one of the two side sheets (10).

Further, in the invention according to claim 2,
For example, as shown in FIG. 1, the rod-shaped solid resin (30)
1mm slightly inside the cutting line (20a) for cutting the tip of the nozzle part (50) to form the opening.
It is provided so that the end of the rod-shaped solid resin (30) is inward of the packaging container (1) with a predetermined length from the base line (32a) of the nozzle part (50). There is something.

As described above, when the tip of the rod-shaped solid resin (30) is located inside the cutting line (20a) by about 1 mm, the rod-shaped solid resin (30) is cut when the cutting line (20a) is cut into a spout. The solid resin (30) of (1) can be easily opened without disturbing it, and the end point of the rod-shaped solid resin (30) is easily broken.
By forming a predetermined length from 2a) toward the center of the inside of the container, it is possible to prevent breakage from the vicinity of the base (32).

More specifically, the rod-shaped solid resin (30) has a predetermined length as a packaging container with a spout (1).
Capacity, the size of the nozzle portion (50), and the surface on which the rod-shaped solid resin (30) is formed. For example, as shown in FIG. 1, the rod-shaped solid resin (30) is the side sheet (10). Is formed on the outer surface of the nozzle part (5
The length (M) from the tip of 0) to the cutting line (20a) is 1
1 mm, in the case of a packaging container (1) with a spout having a length (K) from the cutting line (20a) to the base line (32a) of 20 mm, a rod-shaped member having a tip 1 mm inside from the cutting line (20a) The total length (H) of the solid resin (30) is 65 mm
The degree, that is, the length (so-called predetermined length) from the base line (32a) to the end point of the rod-shaped solid resin (30) inward of the base line (32a) is (65 + 1 mm-20) and may be about 46 mm. Of course, when pouring out the contents, it is possible to prevent the side sheet (10) of the nozzle part (50) from swelling and prevent the side part sheet (10) of the nozzle part (50) from bulging. The tip closing point of the non-adhesive part (23) can be moved to the tip direction from the conventional position, and the cutting line (20a) can be set to the tip direction further. Therefore, the total length (H) of the rod-shaped solid resin (30) is 40 mm.
When the contents are poured out, the base part (32) can be shortened when shortened.
Although it is possible to prevent breakage from the vicinity, the bulge of the side surface sheet (10) of the nozzle portion (50) becomes large,
It tends to be difficult to set the cutting line (20a) in the tip direction.

As a predetermined length of the rod-shaped solid resin (30), for example, as shown in FIG. 3, the rod-shaped solid resin (30) is formed on the inner surface of the side sheet (10). , The cutting line (20
The length (M) up to a) is 11 mm, and this cutting line (20
In the case of a packaging container (1) with a spout having a length (K) from a) to the base (32) of 20 mm, the cutting line (20)
Rod-shaped solid resin with a tip 1mm inside from a) (3
0) has a total length (H) of about 40 mm, that is, the length (predetermined length) to the end point of the rod-shaped solid resin (30) located inward from the base (32) is (40 + 1 mm-2
It is a matter of course that when the content is 0), it is about 21 mm to prevent breakage from the base portion (32) when pouring out the contents,
The side sheet (10) of the nozzle part (50) did not swell. In addition, as shown in the perspective view of FIG. 6, when the rod-shaped solid resin (30) is formed on the inner surface of the side sheet (10), the side sheets (10) of the spout (20) are prevented from adhering to each other. In addition to making it easier to pour out, when pouring out the contents, the end point (30 s) of the rod-shaped solid resin (30) is used as a bending start point, and the nozzle part (5
The base sheet (32) of (0) and the end point (30s) of the rod-shaped solid resin (30) have valley folds formed in the side sheet (10), and this portion becomes a pouring gap to facilitate pouring. There was also the merit that

Further, in the invention according to claim 3, for example, as shown in FIG. 1, the rod-shaped solid resin (30) is an ultraviolet curable resin, a hot melt resin or a melt extruded polyethylene resin. In addition, by spraying and coating those resins with a nozzle or the like,
Ultraviolet curing resin can be solidified by ultraviolet irradiation, and hot-melt resin and melt-extruded polyethylene resin can be solidified (cured) immediately by cooling or the like, and easily adhered to the nozzle portion (50) of the packaging container. It was made possible.

Examples of the ultraviolet curable resin include
Mainly composed of polyol, polyester, urethane, and epoxy acrylates as photopolymerizable materials,
Printing inks (paints) such as benzophenones, benzoin ethers, screen inks composed of diazonium and Lewis acid complexes as photopolymerization initiators of about 5 to 10% are preferably used, and have a screen printing method or nozzles. After partial application with an applicator, UV irradiation from a xenon lamp etc. gives a thickness of 1 mm
It may be a rod-shaped solid resin (30) of a certain degree.

As the hot melt type resin,
For example, the most frequently used ethylene-vinyl acetate copolymer (EVA) at present is mentioned, and other polyethylene, atactic polypropylene (APP), ethylene-ethyl acrylate copolymer (EEA), polyamide,
There are polyesters and the like, and those obtained by adding rosin or a derivative thereof, a pinene-based resin tackifier, waxes, etc. to these thermoplastic resins are preferably used, for example, after partial application with an applicator having a nozzle, cooling or at room temperature. When left as it is, a rod-shaped solid resin (30) having a thickness of about 1 mm can be obtained.

Also, in the case of melt-extruded polyethylene resin, similarly to the above hot-melt type resin, the polyethylene resin melted by heat is partially coated with an applicator having a nozzle, for example, and then cooled or left at room temperature to have a thickness of 1 mm. It may be a rod-shaped solid resin (30) of a certain degree.

As the cutting line (20a) constituting the packaging container (1) with a spout of the present invention, a line is printed to indicate that scissors are to be inserted, or a side sheet of the nozzle portion (50) ( 10) The surface may be half-cut by a carbon dioxide laser or a rotary blade to indicate tearing, and in this case, a V notch (V) may be provided at the end of the cutting line (20a). .

The material composition of the composite film constituting the packaging container (1) with a spout of the present invention is, for example, crystalline polypropylene, crystalline propylene-ethylene copolymer, Examples thereof include polyolefins such as high-density polyethylene, medium-density polyethylene, high-density polyethylene, ethylene-vinyl acetate copolymer, and ion-crosslinking olefin copolymer.

Further, as shown in the side sectional view of FIG. 7, for example, a polyethylene terephthalate film, a nylon film or the like having a thickness of about 12 μm is used as the surface layer (42) constituting the composite film (40), Printing including cutting support lines and the like is performed on the back surface.

As the sealant layer (41) constituting the composite film (40), a single layer plastic film such as low density polyethylene having a thickness of about 50 μm is used, and a surface layer is formed through an adhesive for dry lamination. It is obtained by laminating with the film of (42) or laminating by the melt extrusion lamination method of the low density polyethylene resin or the like.

Depending on the contents to be further filled, 3 layers, 4
It can be a layer, for example, in order to give strength to the pouch with a spout, a surface layer (42) and a sealant layer (4
In the case of 1), stretched nylon (ON) having a thickness of about 12 μm is laminated as the intermediate layer (43), or in a pouch with a spout that requires gas barrier properties, for example, a surface layer (42) and a sealant layer (42). 41), aluminum foil (7 μm) / polyethylene terephthalate film (12 μm) or ceramic vapor deposition film (eg SiO 2)
2 Deposition layer / polyethylene terephthalate film (1
2 μm)) can be used as the intermediate layer (43) to form a composite film (40) laminated.

[0030]

Since the present invention has the above-mentioned constitution, it has the following effects. That is, in the invention according to claim 1, at least the innermost layer is a sealant layer,
In order to pour out the contents by sealing both side edges of the two side sheets made of a rectangular composite film and the sealant layer surface of the upper edge, and cutting the tip at one corner end of the upper edge with a cutting line. In a packaging container with a spout having a protruding nozzle portion serving as a spout, and a bottom sheet having substantially the same configuration as the side sheet is sealed at a sealant layer surface of a lower edge of the side sheet made of the composite film , A rod-shaped solid body on at least one of the inner surface or the outer surface of the two side sheets on the front and back sides, along a substantially central line extending from the tip of the nozzle portion protruding to one end of the upper edge of the container to the inside of the packaging container. By forming a resin, when filling the contents into another bottle etc., it is possible to stably pour out the contents without breaking or blocking the spout and stick-shaped solid resin The side Since it can be formed on at least one of the inner surface or the outer surface of the container by coating or discharging, the manufacturing cost does not increase for processing the spout, and the packaging container with a spout does not have pinholes or the like. be able to.

Further, in the invention according to claim 2, since the tip of the rod-shaped solid resin is slightly inside by about 1 mm from the cutting line of the tip of the nozzle portion, the rod-shaped solid resin is It can be opened easily without getting in the way, and the end point of the rod-shaped solid resin is located inside the container with a predetermined length from the base line of the nozzle part that easily breaks, so that the base line of the nozzle part A packaging container with a spout that prevents creases and can more stably pour out the contents without breaking the spout when it is refilled into another bottle, etc. be able to.

Further, in the invention according to claim 2, the rod-shaped solid resin is an ultraviolet curable resin, a hot melt resin or a melt extruded polyethylene resin, and the solidified resin is irradiated with ultraviolet rays. Alternatively, it is possible to provide a spout-equipped packaging container that is instantly solidified by cooling, can be easily adhesively formed on the nozzle portion of the packaging container, and does not increase the manufacturing cost.

Therefore, the present invention is a packaging bag for containing a liquid detergent, shampoo, etc., and in particular, as a packaging container for refilling with a spout for filling the contents into another container, an excellent practical effect. Exert.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a packaging container with a spout according to the present invention.

FIG. 2 is a sectional view taken along the line BB of FIG. 1 for explaining an embodiment of the packaging container with a spout according to the present invention.

FIG. 3 is an explanatory view showing another embodiment of the packaging container with a spout according to the present invention on the front side.

4 is a cross-sectional view taken along the line BB of FIG. 3 for explaining another embodiment of the packaging container with a spout according to the present invention.

FIG. 5 is a perspective view illustrating an embodiment of a packaging container with a spout according to the present invention.

FIG. 6 is a perspective view for explaining an embodiment of the vicinity of the spout of the packaging container with spout of the present invention.

FIG. 7 is an explanatory view showing an example of a composite film constituting a packaging container with a spout of the present invention in a side section.

[Explanation of symbols]

1 ... Packing container with spout 10 ... Side sheet 12 ... Side edge 14 ... Bottom edge 16 ... Upper edge 18 ... Bottom sheet 20 ... pouring outlet 20a ... Cutting line 22 ... Seal part 23 ... Non-adhesive part 30 ... Rod-shaped solid resin 30s ... End of rod-shaped solid resin 32 ... Base 32a ... Base line 40 ... Composite film 41 ... Sealant layer 42 ... Surface layer 43 ... Middle class 50 ... Nozzle part CL: Center line H: Total length of rod-shaped solid resin K: Length from cutting line to base line M: Length from nozzle tip to cutting line V ... V notch

Claims (3)

[Claims] 1. At least the innermost layer is a sealant layer,
In order to pour out the contents by sealing both side edges of the two side sheets made of a rectangular composite film and the sealant layer surface of the upper edge, and cutting the tip at one corner end of the upper edge with a cutting line. In a packaging container with a spout having a protruding nozzle portion serving as a spout, and a bottom sheet having substantially the same configuration as the side sheet is sealed at a sealant layer surface of a lower edge of the side sheet made of the composite film , A rod-shaped solid resin on at least one of the inner surface or the outer surface of the two front and back side sheets along a substantially center line extending from the tip of the nozzle portion protruding to one end of the upper edge toward the inside of the packaging container. A packaging container with a spout, characterized in that 2. The tip of the rod-shaped solid resin is slightly inside the cutting line of the tip of the nozzle part, and the end of the rod-shaped solid resin is inside the container with a predetermined length from the base line of the nozzle part projecting. The packaging container with a spout according to claim 1. 3. The packaging container with a spout according to claim 1, wherein the rod-shaped solid resin is an ultraviolet curable resin, a hot melt resin, or a melt extruded polyethylene resin.