JPH06179461A - Packing bag easy to use in refilling - Google Patents

Abstract

PURPOSE:To provide a packing bag, relating to one formed of flexible packing material, which serves to prevent damage in the process of distribution and from which the contents when extruded are less liable to be spilt so that refilling can be done easily by forming a beak-shaped mouth in a fixed state. CONSTITUTION:Relating to a packing bag formed of flexible packing material, heat-sealing is applied to the bag specifically at the lateral margin and the top at one end of it in a manner of forming a beak-shaped mouth 24 in a fixed state. Perforations 26 for cutting are provided in the sealed region 23 which separates the beak-shaped mouth 26 from the contents-filled part 25 and a V notch for unsealing is cut above the beak-shaped mouth 26. This constitution, when the contents of a packing bag are extruded, prevents the contents from being spilt and enables easily refilling a container with the contents.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refillable liquid packaging bag made of a soft packaging material.

[0002]

2. Description of the Related Art Heretofore, as a liquid packaging bag made of a soft packaging material, the following has been used in terms of material constitution, packaging form and opening method. The material composition is stretched synthetic plastic film / thermoplastic resin, stretched synthetic plastic film / uniaxially stretched synthetic plastic film / thermoplastic resin, stretched synthetic plastic film / barrier film (or aluminum foil) / thermoplastic resin, etc. There are flat pouches, stand packs, pillow type pouches, and the like. A cutting method as shown in FIGS. 3 to 6 is used as the opening method. The following problems have been pointed out in the spout and the opening method thereof as shown in FIGS. Figure 3: It is difficult to pour because the cut spout does not enter the mouth of the refill container. Figure 4: As in Figure 3, it is difficult to pour into a refill container. Figure 5: It enters the mouth of the liquid container, so it is easy to pour, but since the crane mouth is not fixed, the crane mouth may be bent or caught during distribution, and may be torn or torn. Fig. 6: As in Fig. 5, the Tsuruguchi part is bent or hooked, and is torn or torn.

[0003]

Conventionally, a liquid refill packaging bag composed of a soft packaging material does not spill the contents during refilling, and various tricks are taken in the spout and the opening method in order to facilitate handling. Method is adopted. As shown in FIGS. 3 and 4, when the spout is short, it does not enter the mouth of the refill container, so the liquid easily spills and is difficult to pour. Also, FIG.
As shown in Fig. 6 and Fig. 6, if the spout is made longer, it will be easier to pour into the mouth of the refill container, but since the spout is not fixed, it may bend or get caught during distribution. It is inconvenient because it requires special handling. The present invention, in order to solve these problems,
By forming the crane-shaped spout in a fixed state, damage during distribution is prevented, and when pouring out the contents, the liquid does not spill easily, it is easy to pour, and the packaging bag is easy to refill. The purpose is to provide.

[0004]

A refillable liquid packaging bag made of a soft packaging material, wherein a heat-sealing process is applied to an outer edge portion and an upper portion of one end of the bag to provide a crane-shaped spout,
Moreover, perforation processing is applied to the seal part area where the contents filling part and the crane-shaped spout are separated, and a notch for opening is provided at the top of the Tsuruguchi spout to allow the filling contents to be poured out. ,
By cutting the perforations, the contents filling part and the Tsuruguchi spout are separated, and the notch provided at the upper part of the Tsuruguchi spout is used to open the container. The ease of pouring into a refill container can be solved by providing a spout in the packaging bag and making the spout into a crane shape. In this case, since the Tsuruguchi is separated from the main body of the bag, the Tsuruguchi is free to move, and breakage occurs due to bending or catching during the distribution process. In the present invention, the spout is shaped like a crane and the part of the crane is integrated with the bag body to prevent damage during distribution. Furthermore, due to the perforation processing of the crane mouth, when opening,
Remove the Tsuruguchi spout from the bag body, open it from the notch above the spout, and use the long spout to pour the contents into the container.The contents can be easily transferred to the refill container without spilling. Became possible.

Next, the material, the form of the bag, the manufacturing method and the like for manufacturing the refillable packaging bag according to the present invention will be described.
As the stretched base material, there are biaxially stretched films of polyethylene terephthalate, nylon, polypropylene and the like, and these films may be used after being subjected to a decorative treatment by printing as needed. The physical properties required for this stretched base material are required to have a higher melting point than the thermoplastic resin used for the inner surface as well as physical strength as a packaging material. The thickness of the film is preferably 10 to 50 μm. It is necessary that the thermoplastic resin used for the inner surface has a heat-sealing property, such as low density polyethylene (LDPE), linear low density polyethylene (LLDPE), ethylene / vinyl acetate copolymer (EVA), unstretched polypropylene ( CPP)
Etc. can be used. The thickness is preferably 30 to 200 μm.
As the intermediate layer, aluminum foil, saponified ethylene / vinyl acetate copolymer (EVOH), polyacrylonitrile, A
A barrier film can be provided by using a vapor deposition film of a metal such as 1 or a metal oxide such as SiO _x .

Known notches, such as I notches, V notches, and UV notches, can be used as the notches formed in the outer edge of the seal, but other continuous groove-like holes may be formed in the laminated end faces. (TC cut, magic cut, etc.) The shape of the bag may be a four-sided seal type, a three-sided seal type, a pillow type, a joint-sealed type, an envelope-sealed type, a stand-pack type, or the like. To form the packaging material of the present invention into a composite, a generally used dry laminate or extrusion laminate can be used.

[0007]

According to the present invention, even in the case of a refillable packaging bag made of a soft packaging material, the spout is formed in the shape of a crane, and the crane spout is integrated with the bag body. If the contents are poured out separately, the contents can be easily refilled without spilling the contents. Further, in the case of a large bag filled with liquid, refilling work is very difficult, but the use of the packaging bag of the present invention solves the conventional problems and facilitates the refilling work. Become.

[0008]

EXAMPLES Next, the present invention will be described in detail based on examples. 1 and 2 are diagrams showing a first embodiment.
FIG. 1 is a configuration diagram of a laminated film, and FIG. 2 is a diagram showing a packaging bag according to the present invention. Biaxially stretched nylon film 1
Urethane adhesive (Takeda Pharmaceutical Co., Ltd .: A51) on the corona treated surface of 5 μm (Toyobo Co., Ltd .: N1100)
5 / A12) to a coating amount of 3.5 g / m ² when dried, and dry-laminated with uniaxially stretched polyethylene film 25 μm (Tamapoly KK: Tamay Eagle LS), and further linear low density polyethylene film. 120 μm (Dainippon Resin Co., Ltd .: SR-S
T) was dry-laminated to prepare a laminated film having a film structure as shown in FIG. Using this laminated film, as shown in FIG. 2, the outer dimensions are 100 × 200 m.
m, outer seal 8 mm, width of the neck of the crane 50 m
A three-sided solid-seal-shaped bag having a m and a Tsuruguchi length of 64 mm was produced. Furthermore, a perforation cut was inserted between the contents filling portion and the crane mouth portion in the solid seal area for forming the crane mouth, and a V notch for opening was provided on the ceiling side of the crane mouth to make a refill packaging bag. . The contents are filled from the opposite side of the Tsuruguchi spout forming part, and after filling, the product is sealed. For the product filled in the above packaging bag, first cut the perforations and peel off the Tsuruguchi spout from the bag, then open it from the V notch on the upper side of the Tsuruguchi and put the Tsuruguchi spout into a refill container to fill the contents. To a container.

Further, the following film structure can be used for a large bag (0.5L to 2L). That is, biaxially stretched nylon film 25 μm (manufactured by Toyobo Co., Ltd .: N1100), uniaxially stretched polyethylene film 25 μm (Tama Poly Co., Ltd .: Tamai Eagle LS) and linear low density polyethylene film 180 μm (manufactured by Dainippon Plastics Co., Ltd.): SR-ST) is used to carry out dry lamination to produce a laminated film in the same manner as in the above embodiment. Using this laminated film, the size of the bag is determined according to the internal volume, and the outer peripheral seal portion, the solid seal for forming the crane mouth, the perforation for cutting, the V notch, etc. are in accordance with the above-mentioned embodiment. If you do, you will get the large bag you need. For example, the outer dimensions are 180 × 350 mm, the outer peripheral seal portion is 12 mm, the crane neck width is 60 mm, and the crane mouth length is 7 mm.
As a large bag of 0 mm, it can be used for refilling shampoo, liquid detergent and the like.

[0010]

EFFECTS OF THE INVENTION According to the present invention, even in the case of a refillable packaging bag made of a soft packaging material, the spout has a crane shape, and the crane spout is integrated with the bag body so that the sewing machine can be used at the time of use. If the contents are opened separately from the eyes and the Tsuruguchi spout is used to refill the contents, the contents can be easily refilled without spilling. Also, in the case of a large bag filled with liquid, refilling work is very difficult, but by using the packaging bag of the present invention, the conventional problems can be solved and the refilling work can be easily performed. Become. Furthermore,
Since the Tsuruguchi spout is integrated with the bag body, it can be handled in the same way as conventional four-side sealed bags and pillow type bags. Therefore, in the filling work of the contents and the handling at the time of distribution, no special working process or handling method is required, and the working efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a laminated film manufactured in a first embodiment.

FIG. 2 is a plan view of a packaging bag according to the present invention.

FIG. 3 is a view showing a spout and a method for opening the spout according to the prior art.

FIG. 4 is a view showing a spout and a method for opening the spout according to a conventional technique.

FIG. 5 is a diagram showing a conventional Tsuruguchi spout and its opening method.

FIG. 6 is a view showing a long spout and a method for opening the spout according to the prior art.

[Explanation of symbols]

 11 Nylon Film as Base Material 12 Urethane Adhesive 13 Uniaxially Stretched Polyethylene Film 14 Linear Low Density Polyethylene Film 21 Packaging Bag of the Present Invention 22 Heat Seal Part 23 Solid Seal Part for Forming Tsuruguchi Part 24 Tsuruguchi Shaped Spout 25 Content filling part 26 Perforation 27 Notch for opening 28 Seal part after content filling 31 Spout

Claims (1)

[Claims] 1. A packaging bag for refilling a liquid, which is made of a soft packaging material, wherein an outer edge portion and an upper portion of one end of the bag are heat-sealed to provide a spout-shaped spout and a contents filling section. An easy-to-refill packaging bag, characterized in that the seal area that separates the Tsuruguchi-shaped spout is perforated and that a notch for opening is provided at the upper part of the Tsuruguchi spout.