JPH07291312A - Filling bag for refill - Google Patents

Abstract

PURPOSE:To reverse a nozzle bag by pulling a pull-out tape to facilitate the protrusion of an injection nozzle by a method wherein the nozzle bag is stored in a sealed filling bag, and only the bag mouth of the nozzle bag is welded to a welded part of the filling bag, and the base part of the pull-out tape is welded to the bottom part of the nozzle bag. CONSTITUTION:For a sealed filling bag 1 for refill, the periphery is surrounded by longitudinal welded parts 13, a lateral welded part 5 and lateral welded part 4 with a nozzle bag, and a nozzle bag 2 is inserted in the lateral welded part 4. The nozzle bag 2 is put under a configuration wherein only the bag mouth is welded, and the nozzle bag 2 enters the filling bag 1 such as a tongue. Then, the nozzle bag 2 is projected to the outside in such a manner that the nozzle bag 2 is contracted into a lump-form in the vicinity of a non-welded area 9 by pulling a pull-out tape 3 of which the base part is welded to the bottom of the nozzle bag 2, and then, the nozzle bag 2 is made to pass under a condition wherein the non-welded area 9 is turned inside out. Then, the tip of the nozzle bag 2 is cut, and a content 10 in the filling bag is extracted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to various plastic products such as detergents, seasonings, pastes, etc., which are sold in a plastic dispensing container having rigidity and are sold in the form of fluid or free flowing powder. The present invention relates to a filling bag for refilling, which is stored in a small number of flexible plastic bags and sold, and when the contents of a plastic dispensing container having rigidity are used up, the contents in the plastic bag are refilled and used.

[0002]

2. Description of the Related Art Liquid detergents such as shampoo and liquid seasonings such as soy sauce, liquid, semi-fluid or powdered products are sold in a dispensing container made of plastic such as polyester, polyvinyl chloride or polypropylene. Has been done. These containers have a good appearance, and are preferable containers because the contents can be discharged in appropriate amounts according to the purpose,
Its usage is increasing significantly. However, when the contents have been used, these containers are discarded. Since sufficient rigidity is imparted to these containers, when a large amount of plastic is used for incineration, a large amount of heat is generated, which may damage the incinerator and generate harmful gas. In addition, even if it is landfilled, it will not rot and the land will not be tight and it has become a pollution problem.

[0003]

Since the above-mentioned plastic container is manufactured very firmly and has a good appearance, the problem of pollution can be solved if it is used repeatedly instead of once. Therefore, various plastic bags for refilling have been proposed that can be used to refill a used plastic container with peace of mind. There has been a demand for a plastic bag for refilling that does not impair product quality in the distribution process, uses a small amount of plastic, and can be transferred to a plastic container without the risk of spilling the contents during refilling.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and the constitution thereof is a refilling filling bag in which a nozzle bag is housed in a hermetically filling bag formed by fusing the periphery of a plastic film. Where only the bag mouth of the nozzle bag is fused to the fusion part of the hermetically sealed bag, the base of the drawing tape is fused to the bottom of the nozzle bag, and the tip of the drawing tape is fused to the refill bag. From the part, at least protruding to a length that can be pinched with fingers, the pull-out tape is characterized in that only the base part is fused with the nozzle bag, and other parts are not fused with any bag material, The film that constitutes the nozzle bag is double-sided heat-sealing, and the film used for the pull-out tape has a double-sided heat-sealing base and is sandwiched between the heat-sealing parts of the refilling filling bag at the nozzle bag mounting site. The non-heat-bonding on both sides Alternatively, the film forming the nozzle bag is heat-fusible on both sides, the pull-out tape is heat-fusible on both sides, and is not melted in a region narrower than the bag mouth width of the nozzle bag on the inner surface of the nozzle bag mouth. It is characterized in that it is subjected to a process of imparting wearability.

The filling bag for refilling of the present invention is manufactured by using a plastic film which is free from the possibility of breakage, leakage of liquid, alteration of contents, etc. when the contents are filled and distributed. At least the inner surface is heat-fusible for the purpose of heat-sealing and bag making. For example, a normal laminated film such as a laminated product of stretched nylon and linear low density polyethylene, a laminated product of polyester and linear low density polyethylene, a laminated product of polyester, aluminum and linear low density polyethylene is used.

The filling bag for refilling has a four-sided seal type in which four sides of the bag are heat-sealed, a three-sided seal type having one vertical seal, a pillow type in which one vertical seal is displaced in the central portion, and further a gusset fold. It is also possible to use a bag, a stand pack or the like in which a gusset is fused to the bottom to give an uprightness.

The nozzle bag is fused at the same time by aligning the bag mouth with the vertical fusion bonding portion or the horizontal fusion bonding portion of the filling bag. Depending on the case, the effects of the present invention can be obtained even if the bag mouth of the nozzle bag projects from the filling bag. Conversely, even if the mouth of the nozzle bag is buried in the fusion part of the filling bag, if the bag mouth is fused integrally with the fusion part of the filling bag to the extent that the nozzle bag does not fall off easily, Has the effect of the invention. The fusion bonding portion of the nozzle bag to the filling bag may be a corner formed by the vertical fusion bonding portion and the horizontal fusion bonding portion. The nozzle bag is a bag whose periphery is completely fused, leaving only the bag mouth.

Since the nozzle bag is turned over during use, the film used is preferably a flexible and non-bulky film, and it is also preferable that both surfaces are heat-fusible. For example, a single layer film such as polyethylene or linear low density polyethylene, or a material in which a heat-fusible layer such as polyethylene, linear low density polyethylene, or ethylene-vinyl acetate copolymer is laminated on both sides of a flexible intermediate layer is used. . When the outer surface is not heat-fusible, a heat-fusible layer such as a hot-melt adhesive is partially applied to the outer circumference of the mouth of the nozzle bag.

The pull-out tape is fused to the bottom of the nozzle bag,
The other parts are not adhered to any material of the refill filling bag of the present invention. In particular, at the bag mouth portion of the nozzle bag where the bag mouth of the nozzle bag is integrally fused with the fusion portion of the filling bag, it is necessary that the pull-out tape be free to move. It also requires a width that is easy to pinch with your fingertips, and is at least 3 mm.
As described above, a width of preferably 5 mm or more is required. Since the base of the pull-out tape is fused to the bottom of the nozzle bag, it is preferably double-sided fusion-bondable, and the part corresponding to the fusion-bonded part of the filling bag is preferably double-sided non-heat-fusion-bondable. For that purpose, a non-fusing layer is applied to a portion of both sides of the heat-fusible tape which coincides with the bag mouth of the filling bag, or both sides are fused with the nozzle bag bottom of the non-heat-fusing tape. There is a method of applying a fusible layer to the site.

The method for producing the refillable filling bag of the present invention is not particularly limited, but for example, the bag mouth of the nozzle bag to which the pull-out tape is fusion-bonded is aligned with the horizontal fusion-bonding portion of the filling bag to be fused, There is a method of manufacturing a bag in which the side opposite to the horizontal fusion-bonding part is opened and other parts are fused, and the bag bottom is fused by filling the contents from the bag bottom. When using the automatic bag making filling method,
The bag mouth of the nozzle bag in which the pull-out tape is fused to the vertical fusion-bonded portion may be temporarily fixed, and the steps of vertical fusion, filling, horizontal fusion, and cutting may be repeated.

In the present invention, it is necessary to fuse the double-sided heat-fusible nozzle bag to the filling bag without adhering them to each other around the drawing tape. There is also a method of making only the tip end portion of the pull-out tape non-fusing, but in this case, it is necessary to have a certain thickness because the nozzle bag needs to be inverted at the bag mouth. Therefore, it is preferable that the pull-out tape be thin at the base and thick at the tip, particularly at the portion corresponding to the fusion-bonded portion of the filling bag. In this case, even if the filling bag is simply fusion-bonded with the bag mouth of the nozzle bag sandwiched, only the width of the drawing tape remains unfused and the nozzle bag can be inverted by pulling the drawing tape. .

Further, a portion of the inner surface of the nozzle bag corresponding to the fusion portion with the refill filling bag is partially made non-fusing by means of printing or the like, and a normal pull-out tape is attached to the bottom of the nozzle bag. The refillable filling bag of the present invention can be manufactured by fusing and then fusing the bag mouth of the nozzle bag together with the filling bag.

[0013]

According to the present invention, in the state before use, the refillable bag has a part of the peripheral fused portion missing, and that portion is closed by the peripheral fused portion of the nozzle bag. The nozzle bag floats inside the filling bag, and it is difficult to break the bag because no internal pressure is applied. Before pulling the pull-out tape, the inside of the nozzle bag is in communication with the outside air.

When transferring the refillable filling bag of the present invention to the subdivided bag, when the pull-out tape is pulled, only the base portion is fused to the bottom portion of the nozzle bag.
The tape is pulled out while contracting as shown in. When the nozzle bag is pulled more strongly, the nozzle bag is pulled out from the bag mouth of the filling bag in a lumped state and inverted, and the nozzle bag turned upside down projects out of the filling bag for refilling, as shown in FIG. At this time, since the filling bag and the nozzle bag communicate with each other, the tip of the protruding nozzle bag is cut, and the nozzle tip is inserted into the mouth of the subdivision container to be transferred, so that the contents can flow out at a preferable speed. It is possible to refill with confidence.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the drawings. FIG. 1 is a perspective view of one embodiment of the present invention, and FIG. 2 is ii of FIG.
-Ii line sectional view, FIG. 3 is an explanatory view of a state in which the pull-out tape is started to be pulled, FIG. 4 is an explanatory view of a state in which the nozzle bag is pulled out, and FIG.
[Fig. 6] is a plan view of the vicinity of a nozzle bag of another embodiment.

Reference numeral 1 is a refill filling bag, 2 is a nozzle bag, and 3 is a drawing tape. Reference numeral 13 is a vertical fusion-bonding portion, 4 is a horizontal fusion-bonding portion with a nozzle bag, and 5 is a normal horizontal fusion-bonding portion.
As the material of the refill filling bag 1, a film in which linear rhoden polyethylene was laminated on the inner layer of stretched nylon was used. 6 is a vertical fusion bonding portion of the nozzle bag, and 7 is a horizontal fusion bonding portion of the nozzle bag. The base portion 8 of the pull-out tape 3 is fused to the horizontal fusion bonding portion 7 of the nozzle bag. A polyethylene monolayer film was used as the material of the nozzle bag.

After forming the nozzle bag film from the nozzle bag film, a non-fusion-bonding treated portion 9 was provided on the inner surface of the portion to be the bag mouth. The non-fusing treatment portion 9 is wider than the width of the horizontal fusion-bonding portion 4 with the nozzle bag and is inside the vertical fusion-bonding portion 6 of the nozzle bag. This non-fusion-bonding treated portion 9 was obtained by printing on this portion when the film was still in a state or partially applying a non-adhesive substance such as talc. The non-fusing treatment portion 9 is shown in FIGS.
In the above, the fine black dots are densely expressed. Reference numeral 12 is a portion of the pull-out tape 3 protruding from the filling bag, that is, a knob.

10 is a shampoo liquid for the contents. In this embodiment, a refill bag having the horizontal fusion-bonding portion 5 opened was manufactured, the content 10 was injected from the horizontal fusion-bonding portion 5, and then the horizontal fusion-bonding portion 5 was fused and sealed. In this embodiment, the periphery of the filling bag is surrounded by the vertical fusion-bonding portion 13 and the horizontal fusion-bonding portion 5.
It is surrounded by the horizontal fusion splicing part 4 with a nozzle bag,
The nozzle bag 2 is sandwiched between the nozzle bag-equipped horizontal fusion-bonding parts 4, and the film for the filling bag is fused with the film for the nozzle bag at this portion, and the films for the filling bag are not fused. Moreover, since the periphery of the nozzle bag is fusion-bonded, the nozzle bag 2 is substantially in the shape of a tongue intruding into the filling bag 1.

In the non-fusion-bonded portion 9, the nozzle bag films are open without being fused, but the nozzle bag of the horizontal fusion-bonded portion 4 with the nozzle bag is drawn inward from the vertical fusion-bonded portion 6 of the nozzle bag. Since the fusion-bonded portion 11 is left, there is no risk of the contents leaking out. In this embodiment, two vertical fusion-bonding portions 6 of the nozzle bag and one horizontal fusion-bonding portion 7 of the nozzle bag are provided.
The nozzle bag 2 may be the nozzle bag 1 having one vertical fusion-bonded portion 6 with one end in the vertical direction being a fold line. Also,
The horizontal bottom of the nozzle bag may be formed by simply bending the film without the horizontal fusion bonding portion 7 of the nozzle bag 1.

In use, when the pull-out tape 3 shown in FIG. 1 is pulled, only the pull-out tape is pulled as shown in FIG. 3, and the nozzle bag 2 is located inside the filling bag 1 in the vicinity of the non-fusing treatment site 9. The nozzle bag 2 passes through the non-fusing treatment site 9 of the filling bag. After passing, the pull-out tape 3 is further pulled, so that the nozzle bag 2 projects from the filling bag 1 as shown in FIG. By cutting the tip of the nozzle bag 2 and inserting it into the mouth of the container to be refilled, the contents 10 in the refilling refill bag flow in without overflowing. At the root of the nozzle bag 2, the outlet fusion portion 1 extends to the inside of the vertical fusion line of the nozzle bag or to the inside of the nozzle bag.
Since 1 is provided, there is no risk of the contents leaking.

FIG. 5 shows another embodiment. In this case, the nozzle bag 2 was provided in the vertical fusion-bonding portion 13 of the refilling filling bag 1, and the non-fusion-treated portion was not provided on the inner surface of the nozzle bag 2, and a double-sided fusion-bondable film was used. The pull-out tape 3 has a base portion 8 having a thin width of about 7 mm, and is a portion 1 sandwiched between the horizontal fusion-bonded portions.
4 was set to a wide width of about 18 mm. Moreover, the outlet fusion portion 11 is provided inside the portion where the vertical fusion portion 6 of the nozzle bag and the vertical fusion portion 13 of the filling bag intersect. Furthermore, the vertical fusion bonding portion of the nozzle bag was one, and the other was a fold line 15 obtained by simply bending the film. The outlet fusion portion 11 was provided between the fold line 15 of the vertical fusion portion 13 and the pull-out tape 3.

In the case of the present embodiment, a heat-fusible film is used as the pull-out tape 3 in the form of a tape, and is sandwiched between a portion near the knob 12 and at least a vertical fusion-bonding portion 13 with a portion indicated by a broken line 16 as a boundary. Both sides of the tip from the site were printed to provide a non-fusing layer. As a result, the nozzle bag 2
The effect of the present invention was able to be expressed without providing the non-fusion-bonded treatment site on the specific site. Further, in this example, when the nozzle bag 2 having the pull-out tape 3 fused thereto was vertically fused with an automatic bag-making filling machine, it was temporarily fixed in advance and sandwiched and simultaneously fused, so the automatic bag-making filling machine was used. High-speed bag filling becomes possible.

[0023]

EFFECTS OF THE INVENTION According to the present invention, there are no protrusions during the distribution process, there is no danger of bag breakage, and when necessary,
It is possible to provide a refilling filling bag in which the injection nozzle can be projected extremely effectively.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line ii-ii in FIG.

FIG. 3 is an explanatory view of a state in which the pull-out tape has started to be pulled.

FIG. 4 is an explanatory diagram of a state in which the nozzle bag is pulled out.

FIG. 5 is a plan view around a nozzle bag according to another embodiment.

[Explanation of symbols]

 1 Filling bag for refilling 2 Nozzle bag 3 Drawing tape 4 Horizontal fusion part with nozzle bag 5 Horizontal fusion part 6 Vertical fusion part of nozzle bag 7 Horizontal fusion part of nozzle bag 8 Base part of extraction tape 9 Non-fusion process Part 10 Contents 11 Drawout fusion part 12 Knob 13 Vertical fusion part of refill filling bag 14 Part sandwiched between fusion parts of filling bag 15 Fold line 16 Boundary

Claims (4)

[Claims] 1. A refilling bag in which a nozzle bag is accommodated in a hermetically sealed bag formed by fusing the periphery of a plastic film, wherein only the mouth of the nozzle bag is fused with the hermetically sealed bag. And the base of the pull-out tape is fused to the bottom of the nozzle bag, and the tip of the pull-out tape protrudes from the fusion-bonded portion of the refill bag at least as long as it can be pinched with fingers, and pulled out. A filling bag for refilling characterized in that only the base portion of the tape is fused with the nozzle bag and the other portions are not fused with any bag material. 2. The film constituting the nozzle bag has a double-sided heat-sealing property, and the film used for the pull-out tape has a double-sided heat-sealing base portion, and the heat of the portion of the refilling filling bag where the nozzle bag is attached. The filling bag for refilling according to claim 1, wherein the portions sandwiched by the fusion-bonding portions are non-heat-bondable on both sides. 3. The refillable filling bag according to claim 2, wherein the pull-out tape is thin at the base and thick at a portion sandwiched by the fusion-bonded portions of the filling bag. 4. The film constituting the nozzle bag is heat-fusible on both sides, the pull-out tape is heat-fusible on both sides, and the film is not attached to the inner surface of the mouth of the nozzle bag in a region narrower than the width of the mouth of the nozzle bag. The filling bag for refilling according to claim 1, wherein the filling bag is subjected to a process of imparting a fusion property.