JP2011178442A - Packaging bag - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technique with a simpler structure than conventional ones which can foam the content. <P>SOLUTION: A packaging bag formed by laminating two pieces of films, includes a storage part storing liquid content and air and a mixing part in which the content and air are mixed to foam content during moving when an external force is applied to the packaging bag from outside and the content move in the storage part. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a packaging bag.

  As a container filled with contents such as shampoo, body soap, hand soap, facial cleanser, hair conditioner, shaving agent, etc., by moving the container head up and down, the contents in the container are sucked up and mixed with air. There is known a foam ejection pump container that foams and foams the foamed contents from a nozzle (see, for example, Patent Document 1).

  On the other hand, a packaging bag containing a small amount of shampoo, body soap, hand soap, facial cleanser, hair styling agent, shaving agent, and the like is known (see, for example, Patent Document 2). Packaging bags containing a small amount of contents are widely used, for example, as amenity goods such as hotels, free samples, and promotional items.

JP 2004-57891 A Japanese Patent Laid-Open No. 10-291545

  As a container filled with contents such as a shampoo, a body soap, a hand soap, a facial cleanser, a hair styling agent, and a shaving agent, a foam jet pump container is known. The foam jet pump container has a mixing space for mixing air and contents inside the container, and the head of the container is moved up and down to suck up the liquid in the container into the mixing space and to make it foam by taking in air. The foamed contents are ejected from the nozzle.

  On the other hand, a packaging bag for storing a small amount of shampoo, hand soap and the like is known. Such packaging bags are widespread, for example, as amenity goods, free samples, and promotional items. Here, since the conventional packaging bag does not have a function of foaming the contents, the user needs to foam the hand. It is possible to downsize the bubble jet pump container and use it as amenity goods, free samples, and promotional items, but there is a limit to downsizing. In addition, in the case where only a single use amount is accommodated, a simple configuration and cost reduction are required.

  This invention is made | formed in view of the said problem, and makes it a subject to provide the technique whose structure is simpler than before and which can foam the contents.

  In the present invention, in order to solve the above-described problems, a packaging bag is used as a container, and the contents are moved into the packaging bag, thereby providing a mixing unit for mixing the contents and air during the movement. did. According to the present invention, the contents can be foamed by the packaging bag having a simpler configuration than the conventional foam jet pump container.

  More specifically, the present invention is a packaging bag formed by laminating two films, an accommodating portion for accommodating liquid contents and air, and external force is applied from the outside of the packaging bag. When the content moves in the housing portion, the mixing portion mixes the content and the air to move the content into a foam when the content moves.

  The external force from the outside is an external force applied to the packaging bag that is necessary for the mixing unit to exhibit the function of mixing the contents and air and foaming the contents. In other words, external force from the outside is that the content is moved repeatedly in the storage unit, so that the mixing unit mixes the content and air, and exhibits the function of foaming the content. It is what is needed. The aspect which applies external force includes the aspect which shakes a packaging bag in a fixed direction, and the aspect which presses at least two area | regions of a packaging bag alternately, for example. When an external force is applied from the outside of the packaging bag, the contents move in the housing portion. In addition to the contents, air is accommodated in advance in the accommodating part, and when the contents move, the liquid contents are foamed by being mixed with the contents by the mixing part. . The content may be any liquid that can be foamed. Examples of the content include shampoos, body soaps, hand soaps, facial cleansers, hair styling agents, lotions, cosmetic liquids, and conditioners.

  Here, in the packaging bag which concerns on this invention, the said accommodating part has a 1st accommodating part and the 2nd accommodating part connected with this 1st accommodating part, The said mixing part is a said 1st accommodating part. A communication passage that communicates with the second storage portion; the first storage portion and the second storage portion are alternately pressed to move the contents in the communication passage; The contents may be mixed with the air to make the contents foam.

  When the first housing part is pressed, both the contents and air housed in the first housing part move to the second housing part through the communication path. The contents and air are mixed in the mouth portion of the communication path on the first housing part side, and the contents and air move toward the second housing part while being further mixed in the communication path. And if the mixed content and air flow into the 2nd accommodating part from the mouth part by the side of the 2nd accommodating part, the contents and air accommodated in the 2nd accommodating part will contact, and will be further mixed. In other words, when the contents containing air flowing through the communication path flow into the second accommodation part from the mouth part on the second accommodation part side, the contents and air are entrained by entraining the air contained in the second accommodation part. Further mixed. Next, when the second accommodating portion is pressed, the movement opposite to the above is performed. That is, both the contents and air accommodated in the second accommodating portion move to the second accommodating portion through the communication path. The contents and air are mixed at the mouth portion on the second housing portion side of the communication passage, and the contents and air move toward the first housing portion while being further mixed in the communication passage. When flowing into the second housing part from the mouth part on the first housing part side, the contents housed in the first housing part and the air come into contact with each other and are further mixed. In other words, when the contents containing air flowing through the communication path flow into the first accommodation part from the mouth part on the first accommodation part side, the contents contained in the air are entrained by the air contained in the first accommodation part. Mixed. In this way, the pressing of the first housing part and the pressing of the second housing part are alternately performed, so that the contents and air repeatedly move, and the contents and air are mixed with this movement, and the contents are Foamed.

  In addition, it is preferable that the cross-sectional area of a communicating path is smaller than the cross-sectional area of a 1st accommodating part and a 2nd accommodating part. Thereby, the flow rate of the contents flowing through the communication path and the air is increased, and the mixing efficiency of the contents and air is further increased. In addition, the cross-sectional area of the communicating path and the length of the communicating path can be appropriately designed according to the volume of the accommodating portion, the amount of contents to be accommodated, and the amount of air. Also, a plurality of communication paths may be provided, and regions existing on both end sides across the plurality of communication paths are included in the first storage section and the second storage section.

  Here, in the packaging bag according to the present invention, when the content moves in the housing portion due to an external force applied from the outside of the packaging bag, the mixing unit moves the content and the air during the movement. And a porous body that foams the contents.

The porous body in the present invention includes a three-dimensional object in addition to a planar object. The planar porous body is exemplified by a mesh, and the three-dimensional porous body is exemplified by a sponge. In the present invention, the contents and air are mixed as the contents and air pass through the pores of the porous body, and the contents and air repeatedly pass through the holes, so that the contents are foamed. The mixing portion may have a configuration having only a porous body, or may have a configuration having a porous body in addition to the communication path. In the case where the mixing part is constituted only by a porous body, it may be constituted by one accommodating part. In this case, the contents can be moved by shaking the packaging bag in a certain direction. For example, the contents are repeatedly moved from one side to the other side through the holes of the porous body by repeatedly shaking the packaging bag up and down or left and right. When the contents move from one side to the other side through the hole, the contents and air are mixed, so that the contents are foamed by repeating this movement.

  When the mixing unit has a porous body in addition to the communication path, the present invention can be configured as follows. That is, in this invention, the said accommodating part has a 1st accommodating part and the 2nd accommodating part connected with this 1st accommodating part, The said mixing part is a said 1st accommodating part and a said 2nd accommodating part. And the content is moved in the communication path by alternately pressing the first storage portion and the second storage portion, and the content and The content is foamed by mixing with the air, and the mixing unit is provided in at least one of the first storage unit, the second previous storage unit, and the communication path, and the content is It is good also as a structure which further has the porous body which mixes the said content and the said air and makes it foam at the time of this movement, if it moves in the said accommodating part.

  In the present invention, the contents are moved by alternately pressing the first storage portion and the second storage portion. And regardless of the location where the porous body is provided, the contents repeatedly move from one side to the other side through the pores of the porous body. When the contents move from one side to the other side through the hole, they are mixed with air, so that the contents are foamed by repeating this movement. In addition, the magnitude | size of a porous body, the number of holes, etc. can be designed suitably according to the volume of an accommodating part, the content amount accommodated, and the air quantity.

  Here, in the present invention, it is preferable that at least a part of the two films is formed of a transparent member that can visually recognize the contents. At least a part includes all of two films, all of one film, and part of a film. In the present invention, the contents are gradually foamed by applying an external force to the packaging bag to move the contents. Therefore, by configuring at least a part of the film with a transparent member, the user can check the process of foaming. Moreover, since the process by which the contents are foamed can be confirmed, the user can adjust the state of the foam according to his / her preference. Moreover, since the process in which the contents are foamed can be confirmed, curiosity such as wanting to shake or press the packaging bag is improved.

  Moreover, in this invention, it is preferable that the ratio of the air accommodated in the said accommodating part shall be 50 to 90% with respect to the volume of the said accommodating part. In the present invention, the content is foamed by mixing the air previously stored in the storage portion with the content. By making the ratio of the air accommodated in the accommodating portion as described above, the contents can be more effectively foamed.

  ADVANTAGE OF THE INVENTION According to this invention, the structure which is simpler than before and can make the contents foam can be provided.

The perspective view of the packaging bag concerning a first embodiment is shown. The side view of an example of the usage condition of the packaging bag of 1st embodiment is shown. The perspective view of an example of the usage condition of the packaging bag of 1st embodiment is shown. The manufacturing process of the packaging bag which concerns on 1st embodiment is shown. The top view of the packaging bag which concerns on 2nd embodiment is shown. The use condition of the packaging bag of 2nd embodiment is shown. The evaluation result in Example 1 is shown. The model figure of the packaging bag in Example 1 is shown. The evaluation result in Example 2 is shown. The model figure of the packaging bag in Example 2 is shown. The top view of the packaging bag of Example 3 is shown. The evaluation result in Example 3 is shown. The top view of the packaging bag of Example 4 is shown. The evaluation result in Example 4 is shown. An example of the top view of the packaging bag of Example 5 is shown. The other example of the top view of the packaging bag of Example 5 is shown. The evaluation result in Example 5 is shown. The top view of the packaging bag of Example 6 is shown. The evaluation result in Example 6 is shown. The top view of the packaging bag of Example 7 is shown. The evaluation result in Example 7 is shown. The top view of the packaging bag of Example 8 is shown. The front view of an example of the heat roller which welds both the short sides of the packaging bag of Example 8, and the seal part which forms a communicating path is shown. FIG. 23B is a cross-sectional view of the heat roller shown in FIG. 23A. FIG. 23B is a cross-sectional view of a modification of the heat roller shown in FIG. 23A. The top view of the packaging bag of Example 9 is shown.

  Next, embodiments of the present invention will be described with reference to the drawings. However, the embodiment described below is merely an example, and the present invention is not limited to the embodiment described below.

<First embodiment>
(Packaging bag)
FIG. 1 shows a perspective view of a packaging bag 100 according to the first embodiment. The packaging bag 100 is formed by overlapping two films 1 and includes a first storage portion 2, a second storage portion 3, a communication path 4, and a seal portion 5. The packaging bag 100 which concerns on 1st embodiment is a horizontally long rectangle, and is provided with the 1st accommodating part 2 and the 2nd accommodating part 3 which are each a vertically long rectangular shape in the longitudinal direction, and are provided in a line. The two storage portions 3 communicate with each other via a communication path 4 provided near one long side of the packaging bag 100.

The 1st accommodating part 2 and the 2nd accommodating part 3 accommodate a liquid content and air. The 1st accommodating part 2 and the 2nd accommodating part 3 which concern on 1st embodiment are vertically long rectangles. In the first embodiment, the two films 1 are both made of a transparent member, and the insides of the first storage portion 2 and the second storage portion 3 can be visually recognized from the outside. Therefore, the process in which the contents are foamed can be confirmed, and the user can adjust the foam state according to his / her preference. Moreover, the curiosity of wanting to press the packaging bag 100 is improved because the process in which the contents are foamed can be confirmed. The film 1 is not particularly limited as long as the content does not leak. When the material of the film 1 is transparent as in the first embodiment, PET (polyethylene terephthalate), vapor-deposited PET, PP (polypropylene), or the like can be used for the film 1. The film 1 may be a laminated film such as AL (aluminum) + PET, AL + PP. By making the film 1 into a laminated film containing aluminum, it is possible to block ultraviolet rays and further improve the durability of the packaging bag 100. Since the characteristics differ depending on the material of the film 1, the material of the film 1 may be appropriately changed according to the use and purpose. Moreover, the packaging bag 100 may comprise one film with transparent PET and the other film with a laminated film of AL + PET. Thereby, from one surface, the process in which the contents are foamed can be confirmed, and on the other surface, ultraviolet rays can be blocked. Moreover, the packaging bag 100 may be configured by a laminated film of AL + PET as a whole, and a part thereof may be configured by a transparent material. As a result, the durability of the packaging bag 100 can be further improved, the ultraviolet rays can be blocked, and the process of foaming the contents can be confirmed.

  The content may be any liquid that can be foamed. Examples of the content include shampoos, body soaps, hand soaps, facial cleansers, hair styling agents, lotions, cosmetic liquids, and conditioners. The filling amount of the contents can be 1 g to 5 g, preferably 3 g. 3g is equivalent to 1 to 2 times injected from the nozzle of the conventional foam jet pump container. That is, in 1st embodiment, the 1st accommodating part 2 and the 2nd accommodating part 3 accommodate the content equivalent to the usage-amount of one time. The ratio of the air accommodated in the entire accommodating portion composed of the first accommodating portion 2 and the second accommodating portion 3 is 50 to 90% with respect to the volume of the entire accommodating portion composed of the first accommodating portion 2 and the second accommodating portion 3. More preferably, the content is 80 to 90%. In the first embodiment, the contents are foamed by mixing the air previously stored in the first storage portion 2 and the second storage portion 3 with the content. By making the ratio of the air accommodated in the entire accommodating portion including the first accommodating portion 2 and the second accommodating portion 3 as described above, the contents can be more effectively foamed.

  The communication path 4 communicates the first housing part 2 and the second housing part 3. The width of the communication path 4 is designed to be narrower than that of the first housing part 2 and the second housing part 3. In other words, the cross-sectional area of the communication path 4 is designed to be smaller than the cross-sectional areas of the first housing part 2 and the second housing part 3. Thereby, the flow rate of the contents flowing through the communication path 4 and the air is increased, and the mixing efficiency of the contents and air is further increased.

  The seal portion 5 is an area to which the two films 1 are connected, and is provided around the first storage portion 2, the second storage portion 3, and the communication path 4. Thereby, the airtightness of the 1st accommodating part 2, the 2nd accommodating part 3, and the communicating path 4 is hold | maintained. For convenience of explanation, the seal part 5 includes a long side upper seal part 51 located on the upper side of the long side of the packaging bag 100, a long side lower side seal part 52 located on the lower side of the long side of the packaging bag 100, and packaging. The short side left seal portion 53 located on the left side of the short side of the bag 100, the short side right seal portion 54 located on the right side among the short sides of the packaging bag 100, and between the first storage portion 2 and the second storage portion 3. This is referred to as a boundary seal portion 55 located in the area.

  In addition, you may display the procedure of foaming etc. on the outer surface of the 1st accommodating part 2 and the 2nd accommodating part 3 besides the information regarding contents, such as a content and a brand name. In addition, a notch that facilitates opening of the packaging bag 100 may be provided around the packaging bag 100.

(how to use)
Next, the usage method of the packaging bag 100 of 1st embodiment is demonstrated. Here, FIG. 2 shows a side view of an example of a usage situation of the packaging bag 100 of the first embodiment. FIG. 3 shows a perspective view of an example of a usage situation of the packaging bag 100 of the first embodiment. In the packaging bag 100 of 1st embodiment, the content is foamed by the 1st accommodating part 2 and the 2nd accommodating part 3 being pressed alternately. As shown in FIGS. 2 and 3, when the first storage portion 2 is pressed, both the contents and air stored in the first storage portion 2 move to the second storage portion 3 through the communication path 4. (Indicated by arrows in FIG. 3). More specifically, the contents and air are mixed at the mouth portion of the communication passage 4 on the first housing portion 2 side, and the contents and air move toward the second housing portion 3 while being further mixed in the communication passage 4. To do. When the mixed contents and air flow into the second accommodating part 3 from the mouth part on the second accommodating part 3 side, the contents and air accommodated in the second accommodating part 3 come into contact with and are further mixed. . In other words, when the contents containing air flowing through the communication path 4 flow into the second accommodation part 3 from the mouth part on the second accommodation part 3 side, the contents contained by entraining the air accommodated in the second accommodation part 3 Things are mixed with air. Next, when the 2nd accommodating part 3 is pressed, the movement opposite to the above will be performed. That is, both the contents and air accommodated in the second accommodating part 3 move to the second accommodating part through the communication path 4. More specifically, the contents and air are mixed at the mouth portion of the communication passage 4 on the second housing portion 3 side, and the contents and air move toward the first housing portion 2 while being further mixed in the communication passage 4. Then, when the mixed contents and air flow into the second accommodating part 3 from the mouth part on the first accommodating part 2 side, the contents and air accommodated in the first accommodating part 2 come into contact with and are further mixed. . In other words, when the contents containing air flowing through the communication path 4 flow into the first accommodation part 2 from the mouth part on the first accommodation part 2 side, the contents contained by entraining the air accommodated in the first accommodation part 2 Things are mixed with air. Thus, the press of the 1st accommodating part 2 and the press of the 2nd accommodating part 3 are performed alternately, A content and air repeat a movement, A content and air are mixed with this movement, A content Things are foamed.

  2 and 3, the example in which the packaging bag 100 is placed on the table and the packaging bag 100 is pressed has been described. Such a pressing method is suitable, for example, in the evaluation of foaming as in Examples described later. However, the pressing method is not limited to the above. For normal use, the packaging bag 100 is picked up, the first storage part 2 is sandwiched between the thumb and index finger of the left hand, and the second storage part 3 is sandwiched between the thumb and index finger of the right hand. You may make it press on.

(Production method)
Next, the manufacturing method of the packaging bag 100 of 1st embodiment is demonstrated. The packaging bag 100 is common to the conventional packaging bag in that it is formed by overlapping two films. On the other hand, the packaging bag 100 of the first embodiment has two housing portions, that is, a point having the first housing portion 2 and the second housing portion 3, and a communication that connects the first housing portion 2 and the second housing portion 3. It differs from a conventional packaging bag in that it has a passage 4. However, since the 1st accommodating part 2, the 2nd accommodating part 3, and the communicating path 4 can be formed by adjusting the area | region which seals two films, the packaging bag 100 which concerns on 1st embodiment is the It can be manufactured using an existing packaging bag manufacturing apparatus.

  Here, FIG. 4 shows a manufacturing process of the packaging bag 100 according to the first embodiment. In the film feeding step (step S01), two belt-like films 1 are supplied in a state of being overlapped with each other. Next, in the first sealing step (step S02), the short side left side seal part 53, the boundary side seal part 55, and the short side right side seal are used as a part of the seal part 5 for the two strip-shaped films 1 to be supplied. The part 54 is welded. When the first sealing step is completed, the process proceeds to the filling / second sealing step. In the first sealing step, the long side left side seal part 52 and the long side right side seal part 51 may be welded. Which seal part is welded in the first step can be determined by the feeding direction of the film 1, the direction of the heat roller sealing the seal part 5, and the like.

  In the filling / second sealing step (step S03), among the other portions of the seal portion 5 not sealed in the first sealing step, the long side upper seal portion 51 and the long side lower seal portion 52 are welded, and The contents and air are filled at a predetermined ratio. In the first sealing step, when the long-side left-side seal portion 52 and the long-side right-side seal portion 51 are welded, the short-side left-side seal portion 53 is welded when the short-side left-side seal portion 53 is located downstream in the feed direction of the film 1. Then, the contents and air are filled at a predetermined ratio, and the short side right side seal portion 54 is welded. The boundary seal portion 55 is welded between the short side left seal portion 53 and the short side right seal portion 54. When the filling / second sealing step is completed, the process proceeds to the cutting step.

  Subsequently, in the cutting step (step S <b> 04), the packaging bag 100 is cut from the two strip-shaped films 1. Thereby, the packaging bag 100 is completed. The completed packaging bag 100 is conveyed to a predetermined position by a conveying device such as a belt conveyor.

(Function and effect)
According to the packaging bag 100 which concerns on 1st embodiment, although it is a very simple structure compared with the conventional foam jet pump container, the contents can be foamed. The packaging bag 100 according to the first embodiment can accommodate a small amount of liquid shampoo, body soap, hand soap, facial cleanser, hair styling agent, lotion, beauty liquid, conditioner, etc. It can be suitably used as goods, free samples, promotional items, and the like.

<Second embodiment>
(Packaging bag)
Next, the packaging bag 101 of 2nd embodiment is demonstrated. FIG. 5 shows a plan view of the packaging bag 101 according to the second embodiment. The packaging bag 101 according to the second embodiment is formed by overlapping two films 1 and includes a storage portion 21, a seal portion 5, and a mesh portion 6 as a porous body of the present invention. The packaging bag 101 according to the second embodiment is rectangular.

  The accommodating part 21 accommodates liquid contents and air. Also in the second embodiment, each of the two films 1 is made of a transparent member, and the inside of the accommodating portion 21 can be visually recognized from the outside. Therefore, the process in which the contents are foamed can be confirmed, and the user can adjust the foam state according to his / her preference. Moreover, the curiosity of wanting to shake the packaging bag 101 is improved because the process in which the contents are foamed can be confirmed. The film 1 is not particularly limited as long as the content does not leak. When the material of the film 1 is transparent as in the second embodiment, PET, vapor-deposited PET, PP, or the like can be used for the film 1. Moreover, you may use the laminated film etc., such as AL (aluminum) + PET and AL + PP, for the film 1 like 1st embodiment. By making the film 1 into a laminated film containing aluminum, it is possible to block ultraviolet rays and further improve the durability of the packaging bag 100. What is necessary is just to change the raw material of the film 1 suitably according to a use or the objective. Moreover, the packaging bag 101 may comprise one film with transparent PET and the other film with a laminated film of AL + PET. Furthermore, the packaging bag 101 may be constituted by a laminated film of AL + PET as a whole, and a part thereof may be constituted by a transparent material. Examples of the contents stored in the storage unit 21 include liquid shampoos, body soaps, hand soaps, facial cleansers, hair styling agents, skin lotions, cosmetic liquids, conditioners, and the like, as in the first embodiment. The filling amount of the contents and the ratio of the air stored in the storage unit 21 are preferably 50 to 90%, more preferably 80 to 90% with respect to the volume of the storage unit 21.

  The seal portion 5 is an area where the two films 1 are connected, and is provided around the accommodating portion 21. Thereby, the airtightness of the accommodating part 21 is maintained. For convenience of explanation, the seal part 5 includes a long side upper seal part 51 located above the long side of the packaging bag 101, a long side lower seal part 52 located below the long side of the packaging bag 101, and packaging. The short side left seal part 53 located on the left side of the short side of the bag 101 and the short side right seal part 54 located on the right side among the short sides of the packaging bag 101 are referred to.

  When an external force is applied from the outside of the packaging bag 101 to move the contents in the accommodating part 21, the mesh part 6 mixes the contents and air to make the contents foam. The mesh part 6 should just be a magnitude | size which can be accommodated in the accommodating part 21. FIG. By using the mesh part 6 having a large number of eyes, finer bubbles can be obtained.

(how to use)
Next, the usage method of the packaging bag 101 of 2nd embodiment is demonstrated. Here, FIG. 6 shows the usage status of the packaging bag 101 of the second embodiment. In the packaging bag 101 of the second embodiment, the contents are foamed by shaking the packaging bag 101 in a certain direction. Specifically, as shown in FIG. 6, one of the short sides of the packaging bag 101 is picked and shaken so that the other short side of the packaging bag 101 forms an arc with the one short side of the packaging bag 101 as an axis. .

In the second embodiment, the contents and air are mixed as the contents and air pass through the mesh of the mesh unit 6, and the contents and air are repeatedly passed through the mesh so that the contents are foamed. . That is, as shown in FIG. 6, one short side of the packaging bag 101 is picked and the other short side of the packaging bag 100 is shaken around the short side of the packaging bag 101 as an axis. The object repeatedly moves from one side to the other side through the mesh of the mesh part 6. When the contents move from one side to the other side through the mesh, the contents and air are mixed, and the contents are foamed by repeating the movement.

(Production method)
Next, the manufacturing method of the packaging bag 101 of 2nd embodiment is demonstrated. The basic manufacturing procedure is the same as in the first embodiment (see FIG. 4). Specifically, in the film feeding process (step S01), two strip-shaped films 1 are supplied in a state of being overlapped with each other, and in the first sealing process (step S02), two strip-shaped films to be supplied are supplied. 1, a short side left side seal part 53 and a short side right side seal part 54 are welded as a part of the seal part 5. Next, in the filling / second sealing step, the long side upper seal portion 51 and the long side lower seal portion 52 are welded among the other portions of the seal portion 5 not sealed in the first sealing step, and the content Objects and air are filled at a predetermined ratio. In the second embodiment, the mesh portion 6 is put into the accommodating portion 21 in the filling / second sealing step. The mesh unit 6 may be sandwiched between two films in advance in the film feeding process. When the filling / second sealing step is completed, the process proceeds to the cutting step.

  In the cutting step (step S04), the packaging bag 101 is cut from the two strip-shaped films 1. Thereby, the packaging bag 101 is completed. The completed packaging bag 101 is conveyed to a predetermined position by a conveying device such as a belt conveyor.

(Function and effect)
According to the packaging bag 101 which concerns on 2nd embodiment, although it is a very simple structure compared with the conventional foam jet pump container, the contents can be foamed. The packaging bag 101 according to the second embodiment can store a small amount of liquid shampoo, body soap, hand soap, facial cleanser, hair styling agent, skin lotion, beauty liquid, conditioner, etc. It can be suitably used as goods, free samples, promotional items, and the like.

<Example>
Next, examples will be described.
Example 1
In Example 1, in the packaging bag 100 which concerns on 1st embodiment, the content accommodated in the dimension of the 1st accommodating part 2, the 2nd accommodating part 3, and the communicating path 4, the 1st accommodating part 2, the 2nd accommodating part 3. The ratio of the object and air was changed and foaming was evaluated. In the evaluation, the target packaging bag was placed on a table having sufficient strength, and the first housing portion 2 and the second housing portion 3 were alternately pressed 5 times on each side, 10 times in total. About the evaluation objects 1 and 2 as a comparative example, the left side and the right side of the 1st accommodating part 2 and the 2nd accommodating part 3 were alternately pressed 10 times in total on each side 5 times. In addition, although the finer foam could be confirmed by pressing the first accommodating part 2 and the second accommodating part 3 alternately 15 times on each side for a total of 30 times, it was possible to evaluate even 10 times in total. Now, a total of 10 evaluation results will be described.

FIG. 7 shows the evaluation results in Example 1. “Form” in FIG. 7 indicates the type of the target packaging bag. "One bag type" is a structure which does not have the mesh part 6 in the packaging bag demonstrated in 2nd embodiment. In other words, the one-bag type in FIG. 7 corresponds to a conventional general packaging bag. Evaluation objects 1 and 2 are one-bag types, and these are comparative examples. “Divided into two” is the packaging bag 100 described in the first embodiment or a modification thereof. The “internal volume” is the amount of contents to be accommodated, and is 1.0 g, 1.5 g, and 3.0 g in this evaluation. As for this, the injection quantity (1 push) injected from the conventional bubble jet pump container is 1 to 1.5 g.
Based on the fact that the amount of one use is from 1 push to 2 pushes. “Number of passages” indicates the number of communication passages 4. In the first embodiment, the case where there is one communication path 4 has been described. However, in this evaluation, evaluation was also performed for a plurality of cases where there are seven communication paths 4 (evaluation objects 8 and 9).

  “Size (internal dimension)” indicates the internal dimension of the entire packaging bag 100, the width and length of the passage 3, and the dimensions of the first storage part 2 and the second storage part 3 (see FIG. 8). For example, the evaluation target 1 (Comparative Example 1) indicates that the width is 55 mm × the height is 85 mm × the thickness is 1.5 mm. Moreover, it shows that the evaluation object 3 is width 73mm x height 47mm x thickness 1.5mm. For the evaluation objects 3 to 10, the sizes of the first storage unit 2, the second storage unit 3, and the communication path 4 are also shown in the item “size (internal dimension)”. For example, in the evaluation object 3, the communication path width is 13 mm, and the communication path length is 2 mm. In addition, the upper level in parentheses indicates the size of the first accommodating part 2, and the lower level in parentheses indicates the size of the second accommodating part 3. That is, in the evaluation object 3, the first housing part 2 has a width of 35 mm × a height of 47 mm × a thickness of 1.5 mm, and the second housing part 3 has a width of 36 mm × a height of 47 mm × a thickness of 1.5 mm. . In addition, about evaluation object 3, 4, 6, 7, 10, the communicating path 4 is provided in one long side similarly to the packaging bag 100 demonstrated in 1st embodiment. On the other hand, for the evaluation object 5, the communication path 4 is provided between the long side and the long side. Further, as described above, the evaluation objects 8 and 9 are provided with seven communication paths 4, and the communication path width and communication path length in the evaluation objects 8 and 9 are the width and length of each communication path. Indicates. The communication path length is a length in a direction along the direction in which the contents in the communication path 4 flow. On the other hand, the communication path width is a length in a direction orthogonal to the direction in which the contents in the communication path 4 flow.

  “Volume” indicates the volume of the first housing part 2 and the second housing part 3. That is, it is derived from the “size (internal dimension)” described above. The “space ratio” and the “filling rate” are the ratio of the air to the entire housing part composed of the first housing part 2 and the second housing part 3 and the whole housing part composed of the first housing part 2 and the second housing part 3. Indicates the percentage of content. “Evaluation” indicates the presence or absence of foaming of the contents, and “◯” indicates that foaming is confirmed, and “X” indicates that foaming is not confirmed. The evaluation “」 ”indicates that the contents are foamed, and further, the foam is finer than the evaluation“ ◯ ”. In addition, the upward arrow in FIG. 9 means the same content as the upper stage. The same applies to the drawings showing other evaluation results.

  Based on the above, referring to FIG. 7, foaming was not confirmed in “one bag type” (evaluation objects 1 and 2). In addition, even in the “two divisions”, foaming was not confirmed when the space ratio was 40% (evaluation object 3) and the space ratio was 0% (evaluation object 4). In evaluation objects 5 to 10 other than the above, foaming was confirmed. In other words, when the space ratio is 52% (evaluation object 9) to 94% (evaluation object 8), the first container 2, the second container 3, and the communication passage 4 are provided, so that the contents are bubbled. It was confirmed that it can be formed. Note that finer bubbles can be generated when the communication path 4 is provided on one long side (evaluation objects 6, 7, etc.) than when the communication path 4 is provided at the center (evaluation object 5). It was confirmed that.

(Example 2)
In Example 2, about the packaging bag 101 which concerns on 2nd embodiment, the dimension of the accommodating part 21, the kind of the mesh part 6, the content accommodated in the accommodating part 21, and the ratio of air are changed, and it is about foaming. evaluated. The evaluation was performed by picking one short side end of the target packaging bag and shaking 30 times (counting as one reciprocation) (see FIG. 6).

FIG. 9 shows the evaluation results in Example 2. “Form” in FIG. 9 indicates the type of the target packaging bag. "One bag type" is a structure which does not have the mesh part 6 in the packaging bag demonstrated in 2nd embodiment. Evaluation objects 1 and 2 are one-bag types, and these are comparative examples. “With net” corresponds to the packaging bag described in the second embodiment. The “internal capacity” is the amount of contents to be accommodated, and is 3.0 g in this evaluation. “Net” indicates the presence / absence of a mesh part, the number of meshes of the mesh part 6, the material of the mesh part 6, and the dimensions of the mesh part 6. For example, the evaluation object 11 has a mesh number of 36 mesh, a material of polyamide synthetic fiber (nylon), and a size of 25 mm × 25 mm. The number of eyes represents the number of eyes between 1 inch (25.4 mm).

  “Size (internal dimension)” corresponds to the dimension of the accommodating portion 21 of the packaging bag 101, and indicates width × height × thickness (see FIG. 10). For example, the evaluation object 11 is 58 mm wide × 78 mm high × 1.5 mm thick.

  “Volume” indicates the volume of the accommodating portion 21. That is, it is derived from the “size (internal dimension)” described above. “Spatial ratio” and “filling ratio” indicate the ratio of air to the storage section 21 and the ratio of the contents to the storage section 21. “Evaluation” indicates the presence or absence of foaming of the contents, and “◯” indicates that foaming is confirmed, and “X” indicates that foaming is not confirmed.

  Based on the above, referring to FIG. 9, foaming was not confirmed in “one bag type” (evaluation objects 1 and 2). On the other hand, in evaluation objects 11 to 14 other than the above, foaming was confirmed. In other words, when the space ratio is 45% (evaluation object 12) to 77% (evaluation object 13), the mesh portion 6 is provided to make the contents foam regardless of the type and size of the mesh portion 6. It was confirmed that it was possible.

(Example 3)
In Example 3, with respect to the packaging bag 100 according to the first embodiment, the space ratio was constant (80%), the width and length of the communication passage 4 were changed, and foaming was evaluated. In the evaluation, the target packaging bag was placed on a table having sufficient strength, and the first container 2 and the second container 3 were alternately pressed 15 times on each side, 30 times in total.

  FIG. 11 shows a plan view of the packaging bag of Example 3. FIG. The packaging bag of Example 3 corresponds to the packaging bag 100 described in the first embodiment, and includes a first housing part 2, a second housing part 3, and a communication path 4. And in Example 3, the width W and length L of the communicating path 4 were changed, and foaming was evaluated.

  FIG. 12 shows the evaluation results in Example 3. “NO” in FIG. 12 indicates the number to be evaluated, and “width W” indicates the width of the communication path 4. In Example 3, the width of the communication path 4 was 5 mm, 10 mm, and 20 mm. “Length L” indicates the length of the communication path 4. In Example 3, the length of the communication path was set to 2 mm, 10 mm, and 30 mm. “Evaluation” evaluated the foaming of the contents in stages. Evaluation “Δ” indicates that the contents were slightly foamed but the contents remained slightly. Evaluation “◯” indicates that the contents were foamed and no remaining contents were observed. The evaluation “」 ”indicates that the contents are foamed, and further, the foam is finer than the evaluation“ ◯ ”.

  Based on the above, referring to FIG. 12, it was confirmed that if the porosity is 80%, foaming can be achieved regardless of the width and length of the communication path 4. Moreover, it was confirmed that the one where the width | variety of a communicating path is narrow is effectively foamed. In addition, when the width of the communication path 4 is narrowed, it has been confirmed that the longer communication path is more effectively foamed.

Example 4
In Example 4, with respect to the packaging bag 100 according to the first embodiment, the space ratio was constant (50%), the width and length of the communication path 4 were changed, and foaming was evaluated. In the evaluation, the target packaging bag was placed on a table having sufficient strength, and the first container 2 and the second container 3 were alternately pressed 15 times on each side, 30 times in total.

  FIG. 13 shows a plan view of the packaging bag of Example 4. FIG. The packaging bag 100 of Example 3 corresponds to the packaging bag 100 described in the first embodiment, and includes a first storage unit 2, a second storage unit 3, and a communication path 4. And in Example 3, the width W and length L of the communicating path 4 were changed, and foaming was evaluated.

  FIG. 14 shows the evaluation results in Example 4. “NO” in FIG. 14 indicates the number to be evaluated, and “width W” indicates the width of the communication path 4. In Example 3, the width of the communication path 4 was 5 mm and 10 mm. “Length L” indicates the length of the communication path 4. In Example 4, the length of the communication path was 2 mm, 10 mm, and 30 mm. “Evaluation” evaluated the foaming of the contents in stages. Evaluation “Δ” indicates that the contents were slightly foamed but the contents remained slightly. Evaluation “◯” indicates that the contents were foamed and no remaining contents were observed.

  Based on the above, referring to FIG. 14, it was confirmed that if the porosity is 50%, foaming can be achieved regardless of the width and length of the communication path 4. Moreover, it was confirmed that the one where the width | variety of a communicating path is narrow is effectively foamed. In addition, when compared with Example 3, it was confirmed that Example 3 was more effectively foamed. That is, it was confirmed that the higher the space ratio, the more effective foaming.

(Example 5)
In Example 5, about the packaging bag 100 which concerns on 2nd embodiment, the mesh number of the mesh part 6 was made constant, the porosity and the dimension of the mesh part 6 were changed, and foaming was evaluated. In the evaluation, one short side of the target packaging bag was picked and shaken 30 times (counted as one round trip) (see FIG. 6).

  FIG. 15 shows an example of a plan view of the packaging bag 100 of the fifth embodiment. FIG. 16 shows another example of a plan view of the packaging bag 100 of the fifth embodiment. The packaging bag 101 of Example 5 corresponds to the packaging bag 101 described in the second embodiment, and includes a storage unit 21 and a mesh unit 6.

  FIG. 17 shows the evaluation results in Example 5. “NO” in FIG. 17 indicates the number to be evaluated. “Size (internal dimension)” corresponds to the dimension of the accommodating portion 21 of the packaging bag 101 and indicates width × height × thickness. In Example 5, the dimensions of the accommodating portion 21 were 50 mm width × 40 mm height × 3.0 mm thickness shown in FIG. 15 and 50 mm width × 100 mm height × 3.0 mm thickness shown in FIG. .

  “Space ratio” indicates the proportion of air in the first housing part 2 and the second housing part 3. In Example 5, the porosity was set to 50% and 80%. “Net size” indicates the size of the mesh portion. In Example 5, they were 10 mm × 10 mm and 25 mm × 25 mm. The number of meshes was 36 mesh, and the material was polyamide synthetic fiber (nylon). “Evaluation” evaluated the foaming of the contents in stages. Evaluation “Δ” indicates that the contents were slightly foamed but the contents remained slightly. Evaluation “◯” indicates that the contents were foamed and no remaining contents were observed.

  Based on the above, referring to FIG. 17, it was confirmed that when the porosity was 80%, foaming was more effective than the porosity of 50%. In addition, it was confirmed that foaming does not depend on the dimension of the mesh part 6. FIG.

(Example 6)
In Example 6, with respect to a modified example of the packaging bag 100 according to the first embodiment, specifically, when the mesh part 6 is provided in the communication path 4, the space ratio is constant (50%), and the mesh part 6 Foaming was evaluated by changing the dimensions, the length of the communication passage 4 and the number of meshes of the mesh portion 6. In the evaluation, the target packaging bag was placed on a table having sufficient strength, and the first container 2 and the second container 3 were alternately pressed 5 times on each side, 10 times in total. Moreover, the 1st accommodating part 2 and the 2nd accommodating part 3 were pressed 30 times in total, 15 times each one side.

  FIG. 18 is a plan view of the packaging bag 102 of the sixth embodiment. A packaging bag 102 of Example 6 is a modified example of the packaging bag 100 described in the first embodiment, and includes a first storage part 2, a second storage part 3, a communication path 4, and a longitudinal direction of the communication path 4. The mesh part 6 is provided in the widened part provided in the direction center vicinity.

  FIG. 19 shows the evaluation results in Example 6. “NO” in FIG. 19 indicates a number to be evaluated. “Net size” indicates the size of the mesh portion. In Example 6, they were 10 mm × 10 mm and 20 mm × 20 mm. “Communication path length L” indicates the length of the communication path. In Example 6, it was set to 30 mm and 50 mm. “Number of eyes” indicates the number of eyes of the mesh portion. In Example 6, the number of eyes was 36 mesh and 60 mesh. “Evaluation” evaluated the foaming of the contents in stages. Evaluation “Δ” indicates that the contents were slightly foamed but the contents remained slightly. Evaluation “◯” indicates that the contents were foamed and no remaining contents were observed. The evaluation “」 ”indicates that the contents are foamed, and further, the foam is finer than the evaluation“ ◯ ”.

  Based on the above, referring to FIG. 19, even when the porosity is 50%, the first housing portion 2, the second housing portion 3, the communication path 4, and the mesh portion 6 can be used in any case. It was also confirmed that the contents can be foamed. In Example 6, although the difference by the dimension of the mesh part 6 and the length of the communicating path 4 was not seen, it was confirmed that a finer bubble is obtained by increasing the number of meshes of the mesh part 6. FIG.

(Example 7)
In Example 7, with respect to a modified example of the packaging bag 100 according to the first embodiment, specifically, when the mesh part 6 is provided in the communication path 4, the space ratio is constant (50%), and the mesh part 6 Foaming was evaluated by changing the dimensions, the width of the communication passage 4, and the mesh number of the mesh portion 6. The difference from the sixth embodiment is that the direction of the communication path 4 is orthogonal to the inflow direction or the outflow direction of the contents at the mouth of the communication path 4. In the evaluation, the target packaging bag was placed on a table having sufficient strength, and the first container 2 and the second container 3 were alternately pressed 5 times on each side, 10 times in total. Moreover, the 1st accommodating part 2 and the 2nd accommodating part 3 were pressed 30 times in total, 15 times each one side.

  FIG. 20 shows a plan view of the packaging bag 103 of the seventh embodiment. A packaging bag 103 of Example 7 is a modified example of the packaging bag 100 described in the first embodiment, and includes a first storage unit 2, a second storage unit 3, a communication path 4, and the length of the communication path 4. A mesh portion 6 is provided in the widened portion provided near the center in the vertical direction (the direction in which the contents flow). Further, as described above, the direction of the communication path 4 is orthogonal to the inflow direction or the outflow direction of the contents at the mouth of the communication path 4. Since Example 7 differs from Example 6 and the like in the direction of the communication path, the communication path length is the length in the short direction of the packaging bag 103, and the communication path width is the length in the longitudinal direction of the packaging bag 103. It becomes.

FIG. 21 shows the evaluation results in Example 7. “NO” in FIG. 21 indicates a number to be evaluated. “Net size” indicates the size of the mesh portion 6. In Example 7, the dimensions of the mesh part 6 were all 20 mm × 20 mm. “Communication path width W” indicates the width of the communication path. In Example 7, the width of the communication path was 30 mm and 50 mm. “Number of eyes” indicates the number of eyes of the mesh portion. In Example 7, the number of eyes was 36 mesh and 60 mesh. About the evaluation object 5-5, it was set as the mesh part 6 absence. “Evaluation” evaluated the foaming of the contents in stages. Evaluation “Δ” indicates that the contents were slightly foamed but the contents remained slightly. Evaluation “◯” indicates that the contents were foamed and no remaining contents were observed. The evaluation “」 ”indicates that the contents are foamed, and further, the foam is finer than the evaluation“ ◯ ”.

  Referring to FIG. 21 based on the above, even in the case where the porosity is 50%, the first housing portion 2, the second housing portion 3, the communication path 4, and the mesh portion 6 can be used in any case. It was also confirmed that the contents can be foamed. In Example 7, the difference by the dimension of the mesh part 6 and the width | variety of the communicating path 4 was not seen. In addition, it was confirmed by providing the mesh part 6 in the communicating path 4 that the contents are foamed more effectively.

(Example 8)
In Example 8, with respect to a modified example of the packaging bag 100 according to the first embodiment, specifically, when the seven communication paths 4 are provided, the space ratio is constant (36%), and the foaming is performed. evaluated. In the evaluation, the target packaging bag was placed on a table having sufficient strength, and the first housing portion 2a and the second housing portion 3a were alternately pressed 5 times on each side, 10 times in total. Moreover, the 1st accommodating part 2a and the 2nd accommodating part 3a were pressed 30 times in total on the one side 15 times in total.

  FIG. 22 shows a plan view of the packaging bag 104 of the eighth embodiment. In the eighth embodiment, seven communication passages 4 are provided, and the first storage portion 2 a and the second storage portion 3 a are provided across the communication passage 4. Unlike the packaging bag 100 of the first embodiment, the packaging bag 104 of Example 8 is not clearly partitioned with a single boundary seal portion. The plurality of communication paths 4 are formed by sealing between the communication paths 4. The packaging bag 104 of the eighth embodiment can be easily formed because both the short sides of the packaging bag 104 and the seal portion that forms the communication path 4 can be welded together by one heat roller 90. FIG. 23A shows an example of a heat roller 90 that welds both short sides of the packaging bag 104 of the eighth embodiment and a seal portion that forms the communication path 4. FIG. 23B shows a cross-sectional view of the heat roller shown in FIG. 23A. 23A and 23B are sectional views of a heat roller, and FIG. 23C is a sectional view of a modification of the heat roller illustrated in FIG. 23A. The heat roller 90 includes welded portions 91 and 92 that weld both short sides of the packaging bag 104, and a welded portion 93 that welds the communication path 4. In the example shown in FIG. 23B, the heat roller 90 makes a half turn, so that both short sides of one packaging bag 104 and the communication path 4 can be welded. That is, when the heat roller 90 makes one round, the two short sides of the two packaging bags 104 and the communication path 4 can be welded. On the other hand, in the example shown in FIG. 23C, the heat roller 90 makes one turn, so that both short sides of the single packaging bag 104 and the communication path 4 can be welded. Note that the heat roller 90 shown in FIGS. 23A, 23B, and 23C welds both short sides of the packaging bag 104 and the communication path 4, and a heat roller that welds both long sides of the packaging bag 104 is separately provided. Provided.

  As a result of the evaluation, it was confirmed that the contents were foamed in all cases where the pressure was pressed 10 times in total and the pressure was pressed 30 times in total.

Example 9
In Example 9, a modified example of the packaging bag 101 according to the second embodiment, specifically, a sponge (for example, urethane) 61 is disposed in the housing part 21 instead of the mesh part 6, and the dimensions of the sponge 61 are set. Varying was evaluated with a constant space ratio (70%). In the evaluation, the part where the sponge 61 was present was pinched with fingers, and the pressure was divided into 10 times and 30 times.

FIG. 24 is a plan view of the packaging bag 105 of the ninth embodiment. The dimensions of the sponge 61 were 12 mm × 12 mm × 20 mm and 12 mm × 20 mm × 30 mm. As a result, it was confirmed that the contents were foamed regardless of the size of the sponge 61 and the number of times of pressing. In addition, when the sponge 61 was used, it was confirmed that the contents could already be foamed by pressing three times. That is, it was confirmed that foaming can be performed more effectively than the mesh part 6. It was also confirmed that the larger the size of the sponge 61, the more effectively the contents can be foamed.

  As mentioned above, although embodiment and the Example of this invention were described, the technique regarding the packaging bag of this invention is not restricted to these, These combinations can be included as much as possible.

DESCRIPTION OF SYMBOLS 1 ... Film 2 ... 1st accommodating part 3 ... 2nd accommodating part 4 ... Communication path 5 ... Seal part 6 ... Mesh part 6
100-105 ... Packing bag

Claims (5)

A packaging bag formed by laminating two films,
A storage section for storing liquid contents and air;
A mixing unit that mixes the content and the air during the movement to foam the content when the content moves in the container by applying an external force from the outside of the packaging bag; ,
A packaging bag comprising. The housing portion includes a first housing portion and a second housing portion communicating with the first housing portion,
The mixing unit includes a communication path that communicates the first storage unit and the second storage unit, and the contents are transferred by pressing the first storage unit and the second storage unit alternately. The packaging bag according to claim 1, wherein the packaging bag is moved in the communication path, and the content and the air are mixed to foam the content during the movement.   The mixing unit is configured such that when an external force is applied from the outside of the packaging bag and the content moves in the housing unit, the content and the air are mixed in the movement to foam the content. The packaging bag according to claim 1, which has a porous body to be converted. The housing portion includes a first housing portion and a second housing portion communicating with the first housing portion,
The mixing unit includes a communication path that communicates the first storage unit and the second storage unit, and the contents are transferred by pressing the first storage unit and the second storage unit alternately. Moving in the communication path, mixing the contents and the air during the movement to foam the contents,
The mixing unit is provided in at least one of the first storage unit, the first second storage unit, and the communication path, and the content moves when the content moves in the storage unit. The packaging bag according to claim 1, further comprising a porous body that foams by mixing the air and the air.   The packaging bag according to any one of claims 1 to 4, wherein at least a part of the two films is formed of a transparent member capable of visually recognizing the contents.

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