JP2008150073A - Refill bag - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refill bag in which a nozzle part is easily cut and no liquid leakage occurs under its accidental cutting and unsealing. <P>SOLUTION: A refill bag for sealing contents within a bag main body and storing it comprises a nozzle part 10 protruded from the bag main body having both side seals, and a pouring passage and port is formed by cutting along a cutting guide line with a cut part arranged at the edges of both the side seals being applied as a starting point. In this case, an extremity end 12' at the cut part and a starting point 11' of the cutting guide line are formed to be non-continuous and at the same time a linear cut-out part passing through both side seals is formed within a discontinuous area, and the linear cut-out part has one end placed at the position where it is continuous with the starting point of the cutting guide line, the other end is placed on an imaginary line connecting the extremity end of the cut part with the starting point of the cutting guide line, and is not continuous with the extremity end of the cut part. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a refill bag for sealing and storing contents in a bag body formed by laminating a flexible laminated resin film.

  A flexible bag provided with a nozzle part having a dispensing flow path at a part of the upper edge of the bag body formed by laminating a flexible laminated resin film is a liquid, granule, powder A refill bag that is used as a bag for sealing and storing fluid contents such as the body, and that is used by transferring the contents to another container, meets the purpose of waste reduction. Tend to be used as a lot.

In this bag for refilling, the nozzle part having the seal parts on both sides of the two films and the content discharge passage formed between them is cut by a cutting guide line formed by a half-cut line or the like, and the spout is formed. The form to form is taken, and also in order to make a cutting | disconnection easy, the notch part used as the starting point of a cutting | disconnection is provided.
However, the presence of such a cut portion may be accidentally opened when the cut portion is caught on something or received an impact at a retail store or the like, and liquid leakage may occur at the time of take-out. .

In order to prevent this erroneous opening, the cutting guide wire is formed discontinuously from the tip of the cut portion of the seal portion, and the direction of the cutting guide wire near the tip of the cut portion is different from the force applied to the cut portion. A bag formed as described above (see Patent Document 1) and a cutting guide wire extending obliquely upward along the pouring flow path, changing the direction at the bent portion, and parallel to the lower side of the bag main body A bag (see Patent Document 2) extending in a direction crossing the nozzle portion toward the surface has been proposed.
However, the bag of Patent Document 1 has an effect of preventing erroneous opening, but it is not easy to start cutting only with a cutting guide line that is usually formed by a half cut by a laser or the like, and in a discontinuous region. There is a possibility that the wire is cut in a direction different from that of the cutting guide wire due to the resistance. On the other hand, since the bag of Patent Document 1 has to change the cutting direction twice before the nozzle part is cut and the spout is formed, the cutting takes time and the shape of the cutting guide line is complicated. Therefore, processing is difficult.

JP 2003-276744 A JP-A-2005-145502

  The present invention has been made in view of the above-mentioned problems of the background art, and an object of the present invention is to provide a refill bag in which a nozzle portion can be easily cut and is not accidentally cut and opened to prevent liquid leakage.

The present inventors discontinuously form the tip of the notch and the starting point of the cutting guide line in the seal portion, and do not continue to the tip of the notch that is continuous with the starting point of the cutting guide line in the discontinuous region. The idea was that the problem could be solved by using a refill bag with a linear cutout.
That is, the present invention
A refill bag for sealing and storing contents in a bag body formed by laminating a flexible laminated resin film, and having both side seal portions and a dispensing channel projecting from the bag body Refilling that can form a spout by cutting along a cutting guide line that crosses the nozzle portion, starting from a cut portion provided at at least one edge of the both-side seal portion. For bags,
Forming the tip of the notch and the starting point of the cutting guide line discontinuously;
In the discontinuous region, a linear cutout that penetrates the seal portions on both sides is formed,
The linear cut-out portion is located at a position where one end is continuous with the starting point of the cutting guide line and the other end is on a virtual line connecting the tip of the cutting guide line and the starting point of the cutting guide line. It is in a position close to but not continuous with the tip of
It is a refill bag.

According to the present invention, since the cut portion and the cutting guide wire are discontinuous, even if a slight force is applied to the cut portion, the cutting with the cutting guide wire is not started immediately. In addition, if a force is intentionally applied from the cut portion to the linear cutout portion, the linear cutout portion is continuous with the cutting guide wire, so that the nozzle portion can be easily cut with the cutting guide wire. It can be carried out.
Furthermore, by making the cutting guide line into an arc shape and forming it in a shape that does not exist on the virtual line connecting the tip of the cut guide line and the starting point of the cutting guide line, even if a force directed from the cut part to the cut part is applied, Since resistance is generated at the stage of entering the cutting guide wire, it is not easily cut by the cutting guide wire, and erroneous opening can be prevented more reliably.

Hereinafter, the refill bag of the present invention will be described with reference to the drawings.
FIG. 1 is a front view showing an embodiment of a refill bag of the present invention in a state in which contents are stored.
As shown in FIG. 1, the refill bag 1 includes two body films 2 and 3 made of a flexible laminated resin, and one bottom film 4 made of a flexible laminated resin. The bottom edge portion of the body films 2 and 3 and the peripheral edge portion of the bottom film 4 are joined by heat fusion, ultrasonic fusion or the like to form the bottom seal portion 5, and both side edges of the body films 2 and 3. The side seal portion 6 and the top seal portion 7 are formed by joining the upper portion and the upper edge portion by heat fusion or the like, and the content accommodating portion 8 surrounded by these seal portions is formed. In the refill bag 1, the content container 8 is filled before the final stage of the above-described film joining process, for example, before the top seal part 7 of the body films 2 and 3 is joined. To do.

  In the refill bag 1, the upper corner portion of the bag is divided into two side seal portions, that is, a lower seal portion 6 ′ which is a part of one side seal portion and an upper seal portion 7 ′ which is a part of the top seal portion. In addition, when used, the nozzle portion 10 is cut by a cutting guide wire 11 to form a spout.

FIG. 2 is an enlarged front view showing the nozzle portion 10 of one embodiment of the refill bag 1 of the present invention, and FIG. 3 is an enlarged front view showing the nozzle portion 10 of another embodiment. .
As shown in FIG. 2 and FIG. 3, a notch 12 is provided at the edge of the upper seal portion 7 ′ of the extraction flow path forming portion, and starts in the region of the upper seal portion 7 ′ in the direction of the lower seal portion 6 ′. A cutting guide wire 11 is provided across the nozzle portion, but the tip 12 'of the cut portion 12 and the starting point 11' of the cutting guide wire 11 are discontinuous, and a linear cutout is made in the discontinuous region. Part 13 is formed.

The linear cutout portion 13 is a linear cutout penetrating the upper seal portion 7 ′ on the front and back sides, one end is at a position continuous with the starting point 11 ′ of the cutting guide wire 11, and the other end is the cutout portion 12. It is on a virtual line that connects the tip 12 ′ and the starting point 11 ′ of the cutting guide line 11, and is close to the tip 12 ′ of the notch 12 but is not continuous.
In this way, the cutting guide wire 11 and the linear cutout portion 13 are formed continuously, but the cutting guide wire 11 is in a direction different from the direction of the force applied to the linear cutout portion 13 from its starting point 11 ′. It is preferable to extend, for example, it is preferable to form in the circular arc shape expanded in the direction of the content accommodating part 8 as shown in FIGS. Thus, even if the direction of the force applied to the linear cutout portion 13 and the extending direction of the cutting guide wire 11 are different directions, even if the cutout portion 12 is accidentally cut from the cutout portion 12, Unless further force is applied, further cutting can be prevented.

The shape of the linear cutout 13 is a straight line as shown in FIG. 2, a circular arc that swells in the direction of the content container 8 as shown in FIG. 3, or a circular arc that swells in the opposite direction. However, in the sense that the direction of the force applied to the linear cutout portion 13 and the extending direction of the cutting guide wire 11 are different directions, a curved shape is preferable.
Like the linear cutout portion 13, the cutout portion 12 penetrates the upper seal portion 7 'on the front and back, but the shape is not particularly limited, and is V-shaped as shown in FIG. 2, and straight as shown in FIG. In addition to the shape, a U-shape or the like can be adopted.

The linear distance between the tip 12 'of the cut portion 12 and the tip 13' on the cut portion 12 side of the linear cutout portion 13 needs to take into account the cutting strength of the flexible laminated resin forming the upper seal portion 7 '. 1 to 3 mm is suitable, although it is not generally determined.
The length of the linear cut-out portion 13 is preferably longer in order to facilitate cutting at the time of opening. However, if the length is too long, the linear cut-out portion may be caught on something, and there is a risk of erroneous opening from there. However, it is not generally determined, but 1 to 3 mm is appropriate.

  In the example of FIGS. 1 to 3, in the upper seal portion 7 ′, the tip of the cut portion and the start point of the cutting guide line are formed discontinuously, and a linear cutout portion is formed in the discontinuous region. In the lower seal portion 6 ′, or both the upper seal portion 7 ′ and the lower seal portion 6 ′ may be formed in the same manner.

  In the example of FIGS. 1 to 3, in order to facilitate opening of the spout when the nozzle portion 10 is cut, the flexible flow path 9 of the flexible laminated resin films 2 and 3 forming the nozzle portion 10 is used. The embossed part 14 is provided in the corresponding part. The embossed portion 14 is a concave emboss, a convex emboss, or a combination thereof. The shape of the embossed portion 14 is not limited to the mushroom shape shown in FIGS. If only the cutting guide line is provided across the line, it may be difficult to cut. However, even if there is an embossed portion in the refill bag of the present invention, if a force is intentionally applied from the cut portion 12, it is cut to the linear cutout portion 13, and the linear cutout portion 13 is cut at the cutting guide wire 11. It becomes a start part, and the cutting guide wire 11 can be cut smoothly.

The cutting guide wire 11 is formed as a half-cut line (half-cut line) by using a laser such as a carbonic acid laser and adjusting the output, irradiation time, number of times of irradiation, and the like. The method for forming the cut portion 12 and the linear cutout portion 13 is not particularly limited, and any of the known methods can be adopted. What is necessary is just to form the notch part 12 and the linear cutout part 13 which penetrated.
The method for forming the embossed portion 14 is not particularly limited, and any known method can be employed. However, it is preferable to form the embossed portion 14 by an embossing method such as pressing the film surface from the viewpoint of productivity. preferable.

  The shape of the refill bag of the present invention is not particularly limited, and a pouch such as a three-side seal type or a four-side seal type is suitable, but a standing pouch type bag is particularly easy to handle because it can stand on its own, This is the preferred format.

  As a film forming a refill bag, a flexible single layer resin film can be used, and a laminated resin film is generally used. Any of the commonly used materials can be used, stretched nylon film (ONy), stretched polypropylene (OPP), unstretched polypropylene (CPP), linear low density polyethylene (LLDPE), high density polyethylene (HDPE), Examples thereof include low density polyethylene (LDPE), polyethylene terephthalate (PET), and metal-deposited polyethylene terephthalate (VM-PET). Moreover, in order to give barrier property, you may use metal films, such as aluminum, with said resin film.

  As the layer structure of the laminated resin film, any of the structures usually used for this kind of purpose can be adopted. However, as a preferable layer structure, from the outer layer side, a base material layer made of ONy, PET, etc., and CPP , LLDPE, a structure in which a sealant layer made of LDPE or the like is laminated, and a structure in which OPP, HDPE, VM-PET, a metal film, etc. are further laminated between the base material layer and the sealant layer. it can.

The position of the nozzle portion 10 provided in a part of the refill bag 1 may be the upper edge corner portion (the embodiment of FIG. 1) of the refill bag 1 or the upper edge center portion. Various shapes can be adopted as the shape of the nozzle portion, and the direction thereof can be selected from the upward direction, the obliquely upward direction, and the lateral direction depending on the position to be provided.
Through the shape shown in FIG. 1, that is, a seal portion that extends continuously upward from the top of the side seal portion 6 in a concave arc shape, and a concave bent portion that is recessed inward from the top seal portion 7. The shape of the nozzle formed from the seal portion extending obliquely upward is a particularly preferable shape excellent in handleability at the time of refilling.

  The refill bag of the present invention is used as a bag for storing liquids, granules, powders, etc., such as detergents, surfactants, cosmetics, foods, etc., and is used for transferring contents. .

It is a front view which shows one Example of the refill bag of this invention in the state which accommodated the contents. It is a front view which expands and shows the nozzle part of one Example of the bag for refilling of this invention. It is a front view which expands and shows the nozzle part of the other Example of the refill bag of this invention.

Explanation of symbols

1: Refill bag 2, 3: Body film 4: Bottom film 5: Bottom seal part 6: Side seal part 6 ': Lower seal part 7: Top seal part 7': Upper seal part 8: Contents storage part 9: Dispensing flow path 10: Nozzle part 11: Cutting guide line 11 ′: Start point of cutting guide line 12: Cut part 12 ′: Tip part of the cut part 13: Linear cut part 13 ′: Tip part 14 of the linear cut part : Embossed part

Claims (4)

The contents are sealed and stored in a bag body formed by laminating a flexible laminated resin film, and provided with a nozzle part protruding from the bag body having both side seal parts and a dispensing channel, the both side seal parts A refill bag that can form a spout by cutting along a cutting guide line that crosses the nozzle, starting from a notch provided at at least one of the edges,
Forming the tip of the notch and the starting point of the cutting guide line discontinuously;
In the discontinuous region, a linear cutout that penetrates the seal portions on both sides is formed,
The linear cut-out portion is located at a position where one end is continuous with the starting point of the cutting guide line, and the other end is on a virtual line connecting the leading end of the cutting guide line and the starting point of the cutting guide line. A refill bag that is in close proximity to the tip of but not in a continuous position. The refill bag according to claim 1, wherein the cutting guide wire has an arc shape that swells in the direction of the contents storage portion. The refill bag according to claim 1 or 2, wherein the linear cutout portion is linear. The refill bag according to claim 1 or 2, wherein the linear cutout portion has an arc shape.

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