JP4165697B2 - Soft film bag for refill - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a soft synthetic resin film bag for refilling (also referred to as soft film bag making in the present invention), and more specifically, cosmetics, shampoo, body soap or kitchen detergent provided as a new liquid for refilling. The present invention relates to a container for a refill liquid suitable for storing liquids or fluids typified by foods and beverages such as detergents, mayonnaise and soy sauce, such as a standing pouch.
[0002]
[Prior art]
Conventionally, shampoos, body soaps, and the like have been sold in bottles made of hard plastics that are provided with a liquid take-out means such as a pump mechanism or a spray mechanism at the lid. In distribution and sales in this mode, if the stored contents are used up, the entire container must be discarded, and it is not possible to satisfy the recent problems of saving resources and reducing the amount of garbage.
[0003]
In order to overcome the above problems, the refill solution is distributed and sold in a simple container such as a bag made of soft synthetic resin film, and the refill purchased by the purchaser in a special container with a liquid takeout means. The mode which sets and uses the simple container of the new liquid for use is performed.
[0004]
For example, set the standing pouch upside down in a special container with liquid extraction means such as a pump for refilling liquid (including trigger type), and suck out the contents in the center of the bottom member of the standing pouch The structure which pierces the front-end | tip of a tube is known (refer patent document 1).
[0005]
This standing pouch is formed of a single layer of soft film or a laminated film (laminate film) and is a flexible bag as a whole including the bottom seal portion. The women who occupy the main part point out the poor usability.
[0006]
On the other hand, the structure which welded the laminate film for piercing the front-end | tip of the content suction tube to the upper end collar part of a self-supporting bag instead of a soft product is known (refer patent document 2).
[0007]
In this self-supporting bag, it is difficult to suck out the contents to the end unless the suction force of the pump having the contents suction tube is strong.
[0008]
[Patent Document 1]
JP-A-8-119291 [Patent Document 2]
JP-A-7-172466
[Problems to be solved by the invention]
As is clear from the above, the present invention is easy to operate at the time of refilling, is easy to use for anyone, and can suck out the contents to the end even if the suction force of the pump is not particularly strong. An object of the present invention is to clarify an improved soft film bag for refilling.
[0010]
[Means for Solving the Problems]
1. For refilling used to store contents made up of liquids or fluids such as detergents, foods and drinks, pierce the tip of the pump's suction tube, and lead out the contents. In the soft film bag, a self-shape retaining flange having a flange is fixed to the opening located on the side facing the soft film bottom of the soft film bag body by injection molding. It is covered by a sealing portion for piercing piercing the tip of the suction tube of the pump, further soft membrane bag body, a cylindrical or ellipsoidal cylindrical shape having a welded portion, the flexible film bottom of a self-shape retention flange fixed side The diameter gradually decreases toward the surface, and is easily inserted into a self-supporting exterior body. Serial protrudes outward from the opening of the cylindrical flexible film bag body in a manner that is furnished to the freestanding exterior body, Ri configuration der to be set to a pump having a projecting tube, and the self-shape retention flange (1) A step in which a bag made of a soft film bottom and a soft film bag body is attached to the body of the mold from the opening side, and (2) a mold is clamped on the outer mold. And when the mold is clamped in (2), the push-down portion provided in the outer mold pushes down the welded portion of the bag main body toward the back side of the bag main body, and heats and welds the push-down portion. the Yusuke flexible film bag Refill characterized by Rukoto.
[0013]
2. A flexible film bottom and the bag is standing pouch type made of flexible film bag body, the welded portion of the sides (pouch welding margin) is, according to the 1, which is a configuration that is welded to the bag body Soft film bag for refill.
[0014]
3. The injection molding for forming the self-shape retaining flange is continued from the above (1) and (2). (3) After clamping, the flange is molded from the gate through the runner. (4) After opening the mold, the flange 3. The soft film bag for refilling according to 1 or 2 above, further comprising a step of removing the attached bag from the inner mold.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described with reference to the drawings.
FIG. 1 is a partially sectional front view showing an embodiment of a soft film bag for refill according to the present invention, FIG. 2 is a sectional view when a bag used in the present invention is a standing pouch, and FIG. FIG. 4 and FIG. 5 are process schematic diagrams showing an example of manufacturing a soft film bag for refilling according to the present invention. FIG. 6 is an explanatory plan view of FIG. 4B, and FIG. 7 is an explanatory view showing a manufacturing example of a piercing seal portion.
[0017]
In the illustrated embodiment, a plastic flange is formed at the mouth of the standing pouch (opening on the opposite side of the bottom) by injection molding.
[0018]
Reference numeral 1 denotes a soft pouch body such as a standing pouch, and 2 denotes a soft film bottom, which is formed by thermally welding a soft film to the bottom of the soft film bag main body 1 by a known method. However, the present invention is not limited to this, and other methods such as welding the bottom surface of the flexible film bag body 1 to form the bottom portion 2 may be used.
[0019]
3 has a self shape retention a flange formed on an opening portion located on the opposite side of the bottom part 2, that and having a flange portion 3A. 4 is a puncture seal portion welded to the flange 3, which covers the entire flange 3 and maintains the airtightness of the soft film bag for refill according to the present invention.
[0020]
Various types of standing pouch type and other bags comprising a soft film bottom 2 and a soft film bag body 1 are known as mentioned in the prior art. In the present invention, a known configuration is adopted without any particular limitation. it can. In particular, a laminated film having a layer structure excellent in barrier properties can be preferably used. For example, a single layer of a polyolefin resin film or a laminate of other resin or metal foil may be used.
[0021]
The mouth (opening) of the standing pouch, by Lee Njekushon molding, when the polyolefin resin flange of the example materials (shape is circular or elliptical shape.) Are formed. The soft film bag for refilling with flange 3 is filled with contents that are fluids (liquid, powder, granules, gel, etc.), and then the piercing seal portion 4 is welded to the flange 3. In this case, compared with a conventional standing pouch, the upper part is not squeezed when the opening is sealed, so that a large amount of contents can be filled.
[0022]
In addition, the material of the sticking seal portion 4 is not limited and is preferably a laminated film that does not tear when the pump tube is stuck and can be in close contact with the pump tube.
[0023]
When using a standing pouch type as the bag body in the present invention, both sides have welded portion 1A · 1B (so-called pouch welding margin) (see FIGS. 2 and 3), be formed in a circular cylindrical or ellipsoidal tubular The pouch welding allowances 1A and 1B protrude from the left and right. Therefore, in the present invention, when the outer mold of the mold is clamped in the process of FIG. 4C, the pouch welding allowances 1A and 1B are welded (or bonded) to the bag body 1 as shown in FIG. By doing so, it is preferable to form a cylindrical body without protrusion.
[0024]
The present invention is not limited to the above, and it goes without saying that a bag formed into a bag shape without protruding from the beginning may be used.
[0025]
The soft film bag for refill according to the present invention has a configuration in which a plastic flange is formed by injection formation at an opening located on the side facing the bottom of the soft film bag main body such as a standing pouch type. The process is shown in FIGS.
[0026]
In FIG. 4, a soft film bag body 1 having a soft film bottom such as a standing pouch mold is mounted on the body of an inner mold 6 of the mold from the opening side (A and B in FIG. 4). type 7A, 7B clamping is performed (Fig. 4 B → C), upon the clamping, as shown in FIG. 6,押倒portion 8A, 8B pouches welding margin (welded portion) 1A, a cylinder and 1B The push bag 8A and 8B are heated and welded while being pushed down to the back side of the bag body 1. After the mold clamping, the synthetic resin is injected in a molten state from the gate port 10 through the runner 9, and the flange 3 is molded by the insert injection molding means (C in FIG. 4). Then, the mold is opened after (Figure D 5), the bag-out flanged 3 is taken out from the inner mold 6 (E in FIG. 5).
[0027]
In the present invention, refill flexible film bag is being furnished to the free-standing outer package 5, pierced the tip of the suction tube of the pump, it is configured to be ready for use, and therefore, self-supporting outer enclosure 5 to facilitate insertion into, flexible film bag body, a cylindrical or ellipsoidal cylindrical, gradually from the self-shape retention flange 3 fixed side to the flexible film bottom 2, Ru configuration der whose diameter becomes narrower .
[0028]
The soft film bag for refill according to the present invention manufactured by the method as shown in FIGS. 4 and 5 is inserted into the flange 3 side after the contents to be stored are introduced from the flange 3 side. The whole 3 is covered, and the airtightness of the bag is maintained. This piercing seal portion 4 may be adapted to the outer shape of the flange 3 from the beginning, or may be adapted to the outer shape by welding a larger one and then cutting it (see FIG. 7).
When using the contents storage bag, all of the conventionally known pumps having a piercing tube may be used.
[0029]
【The invention's effect】
According to the present invention, an improved packing which is easy to operate at the time of refilling, is easy to use for anyone, and can suck out the contents to the end even if the suction power of the pump is not particularly strong. In addition to being able to provide a soft film bag for replacement, it also exhibits the effect of reducing the amount of garbage.
[Brief description of the drawings]
FIG. 1 is a partially sectional front view showing an embodiment of a soft film bag for refill according to the present invention. FIG. 2 is a sectional view when a bag used in the present invention is a standing pouch. Fig. 4 is a plan view of the bag shown in Fig. 2 inflated in an elliptical shape. Fig. 4 is a process schematic diagram showing an example of manufacturing a soft film bag for refill according to the present invention. Fig. 5 is a soft film for refill according to the present invention. Schematic diagram of manufacturing process showing bag manufacturing example [FIG. 6] Plane explanatory diagram of FIG. 4B [FIG. 7] Explanatory diagram showing a manufacturing example of a stab seal part [Explanation of symbols]
1-Standing Pouch Type Soft Film Bag Body 1A, 1B-Welding Portion (So-called Pouch Welding Allowance)
2-Soft film bottom 3-Flange 3 A formed in an opening located on the opposite side of the bottom 2-Gutter 4-Piercing seal part 5 welded to the flange 3 5 Mold 7A, 7B-Mold outer mold 8A, 8B-Pushing part of pouch welding allowance 9-Runner 10-Gate port

Claims (3)

For refilling used to store contents made up of liquids or fluids such as detergents, foods and drinks, pierce the tip of the pump's suction tube, and lead out the contents. In the soft film bag, a self-shape retaining flange having a flange is fixed to the opening located on the side facing the soft film bottom of the soft film bag body by injection molding. Covered by a piercing seal portion that pierces the tip of the pump suction tube, and the soft film bag body is cylindrical or elliptical with a welded portion , from the self-holding flange fixing side to the bottom of the soft film The diameter gradually decreases toward the surface, and is easily inserted into a self-supporting exterior body. Serial protrudes outward from the opening of the cylindrical flexible film bag body in a manner that is furnished to the freestanding exterior body, Ri configuration der to be set to a pump having a projecting tube, and the self-shape retention flange (1) A step in which a bag made of a soft film bottom and a soft film bag body is attached to the body of the mold from the opening side, and (2) a mold is clamped on the outer mold. And when the mold is clamped in (2), the push-down portion provided in the outer mold pushes down the welded portion of the bag main body toward the back side of the bag main body, and heats and welds the push-down portion. the Yusuke flexible film bag Refill characterized by Rukoto. A flexible film bottom and the bag is standing pouch type made of flexible film bag body, the welded portion of the sides (pouch welding margin) is, according to claim 1, characterized in that a structure which is welded to the bag body Soft film bag for refilling. The injection molding for forming the self-shape retaining flange is continued from the above (1) and (2). (3) After clamping, the flange is molded from the gate through the runner. (4) After opening the mold, the flange 3. The soft film bag for refilling according to claim 1 or 2 , further comprising a step of removing the attached bag from the inner mold.

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