JP3123351U - Refillable pouch with improved spout - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the contents from flowing out smoothly without causing the spout films to stick to each other, and to prevent the contents from flowing out due to the bottleneck phenomenon. A refillable pouch capable of increasing the outflow rate is provided.
A pour spout having a protruding shape is formed on one side of a pouch in which two films of a front film and a back film are sealed at a desired position, and is inclined at a predetermined angle from the vertical axis of the pouch. From the spout or from the spout to the desired location of the pouch, a flow guiding path for the first content is formed, which forms a columnar shape by bending the front film and the back film itself, and the first content of the columnar shape is provided. A refillable pouch provided with a second content flow guide path in which a spiral is fixedly formed while wrinkling or rising along the column body by bending of the front film and the back film itself in the flow flow path of the object.
[Selection] Figure 5

Description

    The present invention relates to a refillable pouch with an improved spout.

    Liquid detergents such as household detergents, shampoos, rinses, bath preparations or foods are sold in pouches, and the contents are usually refilled into the pouches due to the need for reuse to conserve resources. Use.

    In order to manufacture such a refillable pouch, for example, two films are overlapped so as to face the front side and the rear side, and then the two films are heat-sealed at a necessary place. In addition, in order to give standing property, a separate film is applied to the bottom and heat sealed to each of the front film and the back film.

    The pouch thus manufactured is formed with a spout for facilitating the outflow of the contents when the pouch is opened and refilled.

    Conventionally, there has been a case where a plastic reinforcing body is used for the spout. However, the technology using such a plastic reinforcing body not only has a high initial process installation cost for the reinforcing body supply apparatus and the like, but the process is complicated and prone to process defects, and 5% of the pouch price. From the viewpoint of cost, the plastic reinforcement corresponding to 10% to 10% is not preferable.

    On the other hand, another technique in which a separate reinforcing body is not used for the spout is disclosed (for example, see Patent Document 1).

However, in the prior art, the content is often difficult to flow out due to the so-called blocking phenomenon that the films of the spout stick together, and the content is difficult to flow out due to the bottleneck phenomenon when the content flows out. There was a problem.
Japanese Patent Laid-Open No. 06-312753

    The present invention has been made in view of the above circumstances, and the purpose of the present invention is to prevent the contents from flowing out smoothly without the spout films sticking together, It is an object of the present invention to provide a refillable pouch that can prevent the content from being difficult to flow out due to the bottleneck phenomenon at the time of spilling, and in particular has an improved spout that can increase the content spilling speed.

    The above-mentioned purpose is to pour a refill pouch having a protruding shape inclined at a predetermined angle from the vertical axis of the pouch on one side of the pouch where the two films of the front film and the back film are sealed at a desired location. A mouth is formed, and the flow of the first contents is fixedly formed by bending the front film and the back film of the front film and the back film from the spout to the desired portion of the pouch. A path is provided, and a spiral is fixedly formed in the flow guide path of the first columnar content while the front film and the back film are bent by the bending of the front film and the back film while being bent or raised along the column body. The spout is achieved by an improved refill pouch, characterized in that it is provided with a flow guide for the contents.

    The front film and the back film itself have a cross-sectional area wider than the cross-sectional area of the column of the flow guide path of the first content at the pouch side end of the flow guide path of the first content of the column. It is preferable that a temporary storage part for the contents fixedly formed by bending is provided, and it is further preferable that the temporary storage part for the contents has a circular or elliptical cross section.

    The front film and the back film are bent by the bends of the front film and the back film, which are connected to the flow guide path of the first contents below the column-shaped flow guide path of the first contents, or apart from the flow guide path of the first content by a predetermined distance. Preferably, a third content flow guide path is provided which forms a wrinkle shape as a whole while wrinkling or protruding.

    The lateral width of the spout is 30 to 40% of the entire lateral width of the pouch, and the spout is preferably inclined at 35 ° to 45 ° from the vertical axis of the pouch.

    It is preferable that a separate bottom film is attached to the bottoms of the front film and the back film so as to be able to stand.

    Hereinafter, the refillable pouch with improved spout according to the present invention will be described in detail with reference to examples, but the present invention is not limited thereto.

    FIG. 1 is a schematic view illustrating a refillable pouch with an improved spout according to the first embodiment of the present invention, and FIG. 2 is an enlarged schematic view illustrating the spout of the pouch of FIG.

    As shown in FIGS. 1 and 2, the pouch according to the present invention has two films, a front film 10 and a back film 20, which are sealed at a predetermined interval d on the side, and in the case of a standing pouch, along the bottom 30. The bottom film is sealed.

    A pour spout having a protruding shape is formed on one side of the upper portion of the pouch thus sealed (a region composed of e and f) with a predetermined angle α from the vertical axis of the pouch.

    In the spout 70, or through the spout 70 to a desired location inside the pouch, a flow guide path 40 for the first content in which the content as a normal liquid flows is formed. The flow guide path 40 for the first contents is not formed using a separate reinforcing body, but is formed so that the columnar shape is fixedly held by the bending of the front film 10 and the back film 20 itself. .

    However, as described above, in the case where only the column-shaped first content flow guiding path 40 is provided, when the content flows out from the spout 70, the turbulence tends to flow in all directions. ) Occurs. In order to change the flow of the flowing out contents into a laminar flow to prevent the formation of such a swirling flow, the present invention includes a flow guiding path 41 for the second contents.

    That is, the flow guide path 40 of the columnar first contents has a spiral (cavity line) shape while being curled or raised along the column body by the bending of the front film 10 and the back film 20. A flow guide path 41 for the second content is formed.

    In the present invention, the spout 70 has a lateral width e of 30 to 40% of the total width b of the pouch, and at this time, the angle α of the spout 70 is set to 35 ° to 45 ° from the vertical axis of the pouch. . This is preferable in that the friction during the flow of the contents can be minimized, and the pouring spout 70 can be prevented from bending when the contents are flowed out by tilting the pouch. Further, according to the trial and error method, when the lateral width e of the spout 70 is 1/3 of the total lateral width b and the angle α of the spout 70 is 38 ° with respect to the vertical axis of the pouch, It is most preferable in terms of minimizing friction during the flow of the contents and preventing the portion of the spout 70 from bending.

    In this way, in the present invention, the flow guide path of the spiral columnar contents is formed from the pouch spout and the spout to a part inside the pouch by the bending of the front film and the back film of the pouch. By doing so, it is possible to prevent a phenomenon in which the contents flow along the spiral flow guide path, and to increase the outflow speed of the contents. Furthermore, the problem of blockage caused by sticking of films at the spout can be more efficiently solved as compared with a flow guide path for mere columnar contents.

    FIG. 3 is a schematic view showing a refillable pouch having an improved spout according to a second embodiment of the present invention.

    As shown in FIG. 3, in the refillable pouch with the improved spout 70, a bottleneck phenomenon at the time of the outflow of the contents is eased at the end of the first content flow guiding path 40 on the pouch side. Therefore, the temporary storage part 50 of the content which stores the content temporarily is formed.

    The temporary storage part 50 of such contents has its own cross-sectional area larger than the cross-sectional area of the column of the flow guide path 40 of the first content, and the front film 10 and the back film 20 of the pouch are own. It is fixedly formed by bending. At this time, the cross section of the temporary storage 50 for the contents is, for example, elliptical or circular.

    FIG. 4 is a schematic view showing a refillable pouch with improved spout according to a third embodiment of the present invention.

    As shown in FIG. 4, third content flow guiding paths 61 and 60 are formed below the columnar first content flow guiding path 40 in the pouch.

    The third content flow guide passages 61 and 60 are connected from the lower side of the first content flow guide passage 40 or fixed from the lower side of the first content flow guide passage 40. Of the front film 10 and the back film 20 of the pouch are alternately wrinkled or raised by their own bending, and as a whole wrinkle-like (for example, 60 wrinkles, 61 is formed so as to express a raised wrinkle shape.

    The third content flow guiding path is formed below the first content flow guiding path, and when the contents are caused to flow out by tilting the pouch, the flow direction is different from the main flow direction of the contents. By forming the contents, it is possible to prevent the contents from flowing all at once. In particular, since the flow guide path of the third content is formed in a wrinkle shape, it becomes easier to adjust the flow of the content.

FIG. 5 is a schematic view showing a refillable pouch with improved spout according to a fourth embodiment of the present invention.
As shown in FIG. 5, in the present invention, a curved flow hill (knoll for flow) 80 is formed on a part of the vertical side surface (region consisting of f) of the pouch spout 70. To do. Thus, when the contents are inclined and flowed out, before the contents flow along the flow hill 80 in a curved line and hit the spout of a container (for example, a PET container having a diameter of 60 mm in the experiment of the following embodiment). While preventing the contents from leaking outside the pouch, the outflow can be made smoother.

    The method of manufacturing the pouch according to the present invention is as follows.

    First, in the case of the front, back and standing pouches of the pouch, the bottom film is a normal laminated film of two layers, three layers or four layers, for example, ONY film (printing layer) / SDL (Solvent Dry Laminate). Type two-component adhesive / polyolefin film (sealant layer) or ONY film (printing layer) / SDL-type two-component adhesive / aluminum or aluminum vapor deposited film / SDL-type two-component adhesive / It consists of a polyolefin-based film (sealant layer) or a PET film (printing layer) / SDL-type two-component adhesive / ONY film / SDL-type two-component adhesive / polyolefin-based film (sealant layer) Or PET film (printing layer) / SDL type two-component adhesive / Polyolefin film (sealant layer) or PET film (printing layer) / SDL type two-component adhesive / ONY film / SDL type two-component adhesive / aluminum or aluminum vapor deposited film / SDL type It consists of a two-component adhesive / polyolefin film (sealant layer), an OPP film (printing layer) / SDL type two-component adhesive / polyolefin film (sealant layer), or an OPP film (printing) Layer) / SDL type two-component adhesive / aluminum or aluminum deposited film / SDL type two-component adhesive / polyolefin film (sealant layer). Here, the polyolefin film is, for example, LLDPE (linear low density polyethylene film), HDPE (high density polyethylene film), LDPE (low density polyethylene film), or CPP (unstretched polypropylene film).

    As shown in FIGS. 1 to 4, a protruding spout is formed in a region having a predetermined width f in the vertical width a of the whole pouch and a predetermined width e in the horizontal width b of the whole pouch. Thus, the laminated film is cut. The two films cut in this way are sealed with the bottom film at a fixed portion d on the side side or at the bottom 30.

    A male and female mold of a desired shape is positioned inside and outside the spout, and heat is applied to the corresponding portions to cause the flow of the respective contents to flow temporarily or temporarily by the contents of the front film and the rear film. A reservoir is formed. Then, the temperature of each of the heated locations is lowered using a cooler.

    On the other hand, in the present invention, as shown in FIG. 1 to FIG. 4, it is possible to give the spout 70 a cutting property, whereby the consumer can easily open the pouch. Such ease of cutting may be provided by manufacturing a pouch using a film made of a material that is easy to cut, or after manufacturing the pouch, a laser, a score, a beam, etc. on one side of the top of the spout. It may be given by forming a cut line 71 by.

    If necessary, a notch process is performed at a desired portion of the pouch, and further, the side portion is removed in accordance with the specification of the pouch or other unnecessary protrusions are removed.

    A laminated film composed of PET film (12 μm) / NY film (15 μm) / LLDPE film (100 μm) was used. In addition, the detail of a structure of an Example and a comparative example is as follows.

    The pouch according to this embodiment is formed so that the spout has a flow guide path (diameter 30 mm) of a spiral columnar content as shown in FIG. In the pouch, the width of the whole pouch was 180 mm, the width of the spout was 60 mm, and the width of the remaining pouches excluding the spout was 120 mm. The spout angle was 38 ° with respect to the vertical axis of the pouch.

    The pouch of Comparative Example 1 was a normal refill pouch (a normal square pouch without a spout), and the corners were cut off with scissors so that the diameter was about 30 mm for the outflow of the contents.

    The pouch of Comparative Example 2 was a regular refillable pouch provided with a plastic reinforcing body, and the diameter of the reinforcing body was 30 mm.

    Unlike the pouch of the example, the pouch of the comparative example 3 was made into the normal columnar thing which does not form a helix.

    The following liquids having different viscosities were packed in the pouches of the examples and comparative examples.

    The first liquid was water having a viscosity of 6.59 to 7.09 sec (viscosity measurement: ZHANcup # 4 of RIGOSHA CO., LTD.).

    The second liquid was an ordinary fiber softener with a viscosity of 7.61 to 7.79 sec (viscosity measurement: ZHANcup # 4 of RIGOSHA CO., LTD.).

    The third liquid was a shampoo and rinse. (Viscosity measurement: RIGOSHA CO., LTD., Zhancup # 4; measurement of viscosity was not possible).

    The fourth liquid was an ordinary detergent having a viscosity of 7.78 to 7.9 sec (viscosity measurement: ZHANcup # 4 of RIGOSHA CO., LTD.).

    The experiment of flowing out the contents was repeated 20 times for a pouch filled with 350 ml, which is a normal detergent capacity. The diameter at which the contents of each pouch flowed out was made constant at 30 mm, and then the liquid was poured into a PET container having a diameter of 60 mm as follows. The average value of the outflow time is obtained and shown in Table 1 below.

    As is apparent from the above experimental results, the pouch of the example provided with the flow guide path of the spiral columnar contents can pour the contents faster than the pouches of Comparative Examples 1 and 3, and the flow It was excellent in nature. On the other hand, although the thing of the comparative example 2 was excellent in the fluidity | liquidity of the content, there existed a problem of the increase in the manufacturing cost by the addition of a reinforcement body, and the increase in the defect rate on a process.

    According to the refillable pouch with improved spout according to the present invention, the contents can be smoothly discharged without sticking to each other, and the contents can be prevented from suddenly falling. It is possible to prevent the content from being difficult to flow out due to the bottleneck phenomenon, and in particular, it is possible to increase the content flow rate.

It is the schematic which shows the pouch for refilling with which the spout was improved by 1st Embodiment of this invention. It is the schematic which expands and shows the pouring spout of the pouch of FIG. It is the schematic which shows the pouch for refilling with which the spout was improved by 2nd Embodiment of this invention. It is the schematic which shows the pouch for refilling with which the spout was improved by 3rd Embodiment of this invention. It is the schematic which shows the pouch for refilling with which the spout was improved by 4th Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Front film 20 Back film 30 Bottom part 40 Flow guide path of the 1st content 41 Flow guide path of the 2nd content 50 Temporary storage part 60, 61 Flow guide path of the 3rd content 70 Spout 71 Cut line 80 Flowing hill a Overall width of pouch b Overall width of pouch d Interval
e Spout width f Spout height α Spout angle

Claims (6)

In the refill pouch,
On one side of the pouch where the two films of the front film and the back film are sealed at a desired location, a spout having a protruding shape is formed inclined at a predetermined angle from the vertical axis of the pouch,
In the pouring spout or from the pouring spout to a desired portion of the pouch, there is provided a flow guide path for the first content that forms a columnar shape by bending the front film and the back film itself,
In the column-shaped flow guide for the first content, the flow guide for the second content in which the front film and the back film themselves are bent to form a spiral while wrinkling or rising along the column. A refillable pouch with an improved spout, characterized in that a path is provided.     The front film and the back film itself have a cross-sectional area wider than the cross-sectional area of the column of the flow guide path of the first content at the pouch side end of the flow guide path of the first content of the column. The refillable pouch with improved spout according to claim 1, further comprising a temporary storage portion for contents fixedly formed by bending.     The refillable pouch with improved spout according to claim 2, wherein the temporary storage part of the contents has a circular or oval cross section.     The front film and the back film are bent by the bends of the front film and the back film, which are connected to the flow guide path of the first contents below the column-shaped flow guide path of the first contents, or apart from the flow guide path of the first content by a predetermined distance. The refillable pouch with improved spout according to claim 1, further comprising a flow guide path for third contents that form a wrinkle shape as a whole while wrinkles or bulges.     2. The pour according to claim 1, wherein a width of the spout is 30 to 40% of a total width of the pouch, and the pour is inclined at 35 ° to 45 ° from a vertical axis of the pouch. Refillable pouch with improved mouth. The refillable pouch with improved spout according to claim 1, wherein a separate bottom film is attached to the bottom of the front film and the back film so as to be able to stand.