Bag-shaped container with bag closure function

Abstract

To provide a bag-shaped container with bag closure function that enables temporary sealing to block ventilation between the inside and outside and re-opening while exhausting unnecessary air remaining in a storage part of the bag-shaped container without using a separate bag closure.SOLUTION: A bag-shaped container according to the present invention comprises planar bodies that are mutually fusible and flexible, and is configured to have a storage part which is surrounded by a front side part and a back side part and can contain to-be-stored objects therein, an opening part that allows in-putting and out-taking of to-be-stored objects, and a through part provided in the front side part at a position intermediate between the storage part and the opening part, thus having a bag closure function that is integrated with the bag-shaped container.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a bag-like container that can be opened by peeling off a semi-welded portion provided around the opening, and then the opening can be repeatedly opened and the intermediate portion between the storage portion and the opening can be easily closed. [Background technology]

[0002] Conventionally, a bag is made by sealing both sides of a synthetic resin film folded in half so that the areas of its main surfaces overlap to form a front side surface and a back side surface, and after storing an item such as bread in a storage section formed inside, the intermediate section between the storage section and the opening is sealed by semi-sealing the opposing inner surfaces of the front side surface and the back side surface so that they can be easily peeled apart.Furthermore, the intermediate position between this semi-sealed section and the opening is squeezed, and this squeezed section is sealed by a flat synthetic resin plate-shaped bag called a bag closure, which has a shape of approximately C. These bag-like containers are widely used and are displayed in stores unopened, consisting of a bag-like container in the shape of a letter and attached with a clip provided separately; after purchase, the user removes the clip from the bag-like container, opens the semi-welded part, and connects the opening to the storage part, thereby allowing the contents to be removed.The remaining contents can then be placed back into the storage part, and the middle part between the storage part and the opening is then squeezed, and the attached clip is used to hook this squeezed part, allowing the container to be easily resealed and openable.

[0003] Therefore, with conventional bag-shaped containers, users can store leftover items such as bread in the bag-shaped container again in a sealed state, making it possible to easily and simply protect the contents from dryness, moisture, dust, dirt, etc.

[0004] However, with this type of conventional bag-shaped container, there have been problems such as the separate bag closure being lost, making it impossible to close the bag-shaped container, or the detached separate bag closure being accidentally swallowed by infants.Furthermore, since the bag closure itself is formed as a separate body and is made of different materials, it has recently been pointed out that this is not good from an environmental perspective.

[0005] Due to these problems, there is a demand for new bag closures to replace bag closures made of separate, dissimilar materials. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2001-55209 [Patent Document 2] Utility Model Registration No. 3072697 Summary of the Invention [Problem to be solved by the invention]

[0007] The present invention aims to solve the problems described above, and has as its object the provision of a bag-like container that allows the intermediate portion between the opening and the storage portion to be temporarily sealed in a closed state by a means that is not separate from the bag-like container and can be easily separated from the bag-like container so as to be openable, even after the semi-welded portion provided around the opening has been peeled off and the container is opened. [Means for solving the problem]

[0008] The bag-shaped container with bag closure function of the present invention is made of a flexible planar body, has at least a front side portion and a back side portion to define the inside and outside, has a storage section capable of storing objects inside, and is provided with one or more communicating sections that penetrate from the front to the back at appropriate locations on the front side portion and / or back side portion, and is configured so that the communicating sections can be inserted through the opposing back side portion or front side portion and retracted, and can transition to a temporarily sealed state in which the storage section and the outside are defined to a certain extent or more.

[0009] The communication portion is characterized by having elasticity.

[0010] The communication portion is characterized by having a slit or hole shape.

[0011] The communication portion is characterized by having a tongue-shaped portion defined by the slit.

[0012] The communication portion is characterized in that it is provided in the form of a slit or hole imitating a geometric shape such as a straight line, an I-shape, a V-shape, an inverted V-shape, a C-shape, a V-shape, a Λ-shape, a U-shape, an M-shape, an S-shape, a W-shape, an H-shape, a Z-shape, a cross shape, an *-shape, a ☆-shape, a circle shape, a △-shape, or a ◻-shape.

[0013] The communication portion is characterized in that it is provided as an elongated slit or hole.

[0014] The communication portion is characterized in that it is integral with or provided integrally with the planar body.

[0015] The communication portion is characterized in that it is provided as a separate body from the planar body.

[0016] The communication portion is characterized in that it is provided to the planar body by welding.

[0017] The communication portion is characterized by being configured to have an adhesive layer and being attached to the planar body by adhesive force.

[0018] The communicating portion is characterized in that it is provided so as to overlap a through-hole provided in advance at an appropriate position on the sheet-like body.

[0019] The communication portion is characterized in that it is detachably provided on the planar body.

[0020] The communication portion is characterized in that a reinforcing portion is provided around the communication portion.

[0021] The communicating portion is a separate body from the sheet-like body and is mainly made of the same material as the sheet-like body.

[0022] The communicating portion is a separate body from the sheet-like body and is mainly made of a material different from that of the sheet-like body.

[0023] The communicating portion is characterized by being made mainly of polyolefin resin.

[0024] The communicating portion is characterized in that it is mainly composed of a polypropylene-based or polyethylene-based resin.

[0025] The communication portion is characterized in that a plurality of communication portions are provided.

[0026] The slits or holes are characterized in that they are formed by overlapping cuts in parts of the material that constitutes the communication portion.

[0027] The communication portion is characterized by having a lid-like portion that can be opened and closed.

[0028] The bag-shaped container is characterized by having a semi-welded portion formed by peelably welding together parts of the inner surfaces of the front side surface portion and the back side surface portion that face each other.

[0029] The bag-shaped container has an opening communicating with the inside and outside, and the communicating portion is provided at a position closer to the opening than the semi-welded portion.

[0030] The communicating portion is characterized in that at least a part thereof is formed within the forming region of the semi-welded portion.

[0031] The planar body has a retraction portion provided on the inside of the face portion on the side opposite the communicating portion, and is configured to make it easier to retract the face portion on the opposite side into the communicating portion via the retraction portion.

[0032] A display unit is provided around the communication portion.

[0033] The display unit is characterized by being provided by printing. [Effects of the Invention]

[0034] According to the bag-like container of the present invention, a slit-like communicating portion is provided in the front or side surface portion at an appropriate position near the opening, which is outside the semi-welded portion, and penetrates from front to back. This allows the bag-like container to be simply and easily resealed and re-opened, and the repeated resealing and re-opening processes to be carried out without using a separate clip-like part such as a bag closure, even after the semi-welded portion has been peeled off and the container is opened. This prevents the separate clip-like part from being lost and completely prevents problems such as accidental ingestion by infants. Furthermore, in addition to being manufactured by forming the communicating portion directly on the bag-like container, it is also possible to adopt a configuration in which a separately formed member made of the same material is integrated with the communicating portion, which allows for extremely inexpensive integral formation. In either case, the communicating portion can be formed from the same material as the bag-like container, which is also beneficial in terms of recycling. [Brief explanation of the drawings]

[0035] [Figure 1] 1 is a perspective view showing a bag-shaped container having a bag closure function according to a first embodiment. [Figure 2] FIG. 2 is a development view of the bag-shaped container shown in FIG. [Figure 3] FIG. 2 is an exploded perspective view of a communication portion in the bag-shaped container. [Figure 4] FIG. 10 is a plan view showing variations of the slits. [Figure 5] FIG. 10 is a plan view showing variations of the slits. [Figure 6] 3 is a plan view showing a state in which the sheet body shown in FIG. 2 is formed. FIG. [Figure 7] FIG. 10 is a perspective view showing the opened state in which the semi-welded portion of the bag-shaped container has been peeled off. [Figure 8] FIG. 10 is a perspective view of a state in which bread has been removed from an opened bag-shaped container. [Figure 9] 1A is a schematic diagram of an opened bag-shaped container in a temporarily sealed state, and FIG. 1B is a top view of the vicinity of the communicating portion. [Figure 10] FIG. 10 is a perspective view showing an opened state in which the semi-welded portion of the bag-shaped container according to another embodiment has been peeled off. [Figure 11] FIG. 10 is a perspective view showing a state in which a bag-shaped container according to another embodiment is sealed at a semi-welded portion. [Figure 12] 10 is a perspective view of a bag-shaped container showing another example of attachment of the retractable portion. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0036] A bag-shaped container 1 having a bag closure function according to the present invention will be described in detail below with reference to the drawings. First, with reference to Fig. 1, the bag-shaped container 1 having a bag closure function according to the present invention will be described in its unopened state when in use, i.e., when a loaf of bread B is stored in its storage section 2 and sealed, and the unopened state is the same as when it is displayed in a store.

[0037] As shown in the perspective view of Figure 1, the bag-shaped container 1 of the present invention is constructed by first placing an object such as bread B (of course, the object may be bread B, other breads, or other foods, but is not limited to these, and as long as it can be stored in the storage section 2, the object may be in any state, such as solid, liquid, or gas, and its form is not important, as well as in any shape, size, and weight), into the storage section 2 through the opening 3, and then sealing it at an intermediate portion between the opening 3 and the storage section 2 by providing a semi-welded section 5 formed by welding the opposing inner surface portions of flexible planar bodies 4, which are components of the bag-shaped container 1, together in an easily peelable manner.

[0038] This bag-shaped container 1 is composed of a sheet of synthetic resin sheet 4, which is self-weldable, flexible, and formed into a roughly rectangular shape with appropriate length and width dimensions. A plan view of the unfolded container is shown in Figure 2. The bag-shaped container 1 of the present invention, made of a flexible synthetic resin film (here, polypropylene), has a roughly rectangular shape when unfolded, as shown in Figure 2, with a valley fold 4a approximately in the center of its longitudinal direction. The left half of the left half from the valley fold 4a as viewed from the page of this specification forms a front side portion 4b, and the right half forms a back side portion 4c. A communication portion 6 is provided at an appropriate position on the left half of the front side portion 4b. Here, a polypropylene film is used as the sheet 4, but this is not limiting. It may be made of a polyolefin-based synthetic resin such as polyethylene or other resins, or may have a laminated structure made of multiple synthetic resin materials. It may also have a layer of vapor-deposited metal such as aluminum or ceramics such as silica or alumina to improve gas barrier properties and light-blocking properties or to enhance design. Furthermore, the expanded shape and dimensions of the planar body 4 are not particularly limited, and it can have any appropriate shape, form, and dimensions as long as it has a storage section 2 that is defined as the outside and an opening 3 that allows communication between the storage section 2 and the outside.

[0039] 3, the communicating portion 6 is composed of a through-hole 40 that penetrates through the film that forms the front side surface portion 4b in a generally rectangular shape from front to back, and a communicating member 60 that covers the through-hole 40. Of course, the communicating portion 6 does not necessarily have to be provided on the front side surface portion 4b, but may also be provided on the back side surface portion 4c, or on both the front side surface portion 4b and the back side surface portion 4c, or may be formed on any surface of the sheet-like body 4 that forms the bag-like container 1. The communicating member 60 is made of a material that is generally the same as the film material that forms the front side surface portion 4b, but is formed separately and somewhat thicker, and is composed of an arch-shaped slit 6a that penetrates through it from front to back. The clogging communication portion 6 is formed by arranging a communication member 60 having an arch-shaped slit 6a formed through the front and back of the film material formed at an appropriate position on the front side surface portion 4b so as to cover a substantially rectangular penetration portion 40 formed through the front and back of the film material, and by welding the periphery of the communication member 60 to the periphery of the penetration portion to form an integrated unit. Note that the communication member 60 does not necessarily have to be welded to the sheet body 4; it may be configured such that an adhesive layer is provided on the back of the communication member 60, and the adhesive force of the adhesive layer adheres to the sheet body 4 to form an integrated unit with the sheet body 4; this adhesion may be releasable, non-releasable, or detachable.

[0040] Here, the communicating portion 6 is constituted by a communicating member 60 formed separately from the sheet-like body 4, but is not limited to this and may be provided by penetrating an appropriate portion of the front side surface portion 4b of the sheet-like body 4 directly from the front to the back in an appropriate geometric shape.In this case, by penetrating and providing a reinforcing portion such as a rib-like portion continuously or intermittently along the geometric shape, it may be configured to suppress or prevent the sheet-like body 4 from tearing, expanding, or breaking at the communicating portion 6.

[0041] Furthermore, the connecting member 60, which is formed separately from the sheet body 4, is preferably set to a desired shape and dimensions so as to completely cover the through-hole formed in an appropriate portion of the sheet body 4. However, this is not limited thereto, and the connecting member 60 can be configured to cover only a portion of the through-hole. The connecting member 60 is preferably made of substantially the same material as the sheet body 4, from the viewpoints of mutual adhesion between the sheet body 4 and the connecting member 60, recycling, and environmental considerations. However, the connecting member 60 does not necessarily have to be made of substantially the same material; it can be made of different materials as long as the bonding between the sheet body 4 and the connecting member 60 is good. Furthermore, the slit 6a provided in the connecting member 60 does not have to be a cut that penetrates the connecting member 60 from front to back in the shipped state. It is also possible to form the slit as a so-called half-cut cut, which allows the user to move it through the connecting member 60 and enter the usable state during use. Here, the half-cut slit does not have a portion that completely penetrates in the thickness direction, but is provided as a groove-like slit, and also includes a configuration that has a portion that penetrates discontinuously from front to back along the slit line. The shape, size, and form of the slit 6a provided in the communicating member 60 are not particularly limited, but the planar shape of the slit 6a may be, in addition to a mountain shape, for example, as shown in Figures 4 and 5, (a) approximately straight, (b) approximately I, (c) approximately V, (d) approximately inverted V, (e) approximately C, (f) approximately V, (g) approximately Λ, (h) approximately U, (i) approximately M, (j) approximately S, (k) approximately W, (l) approximately H, (m) approximately Z, (n) approximately cross, (o) approximately ☆, (p) approximately O, (q) approximately △, (r) approximately ∘, (v ... The slits 6a or holes can be formed in a shape imitating a geometric shape such as an approximately ◻ shape, (s) approximately diamond shape, (t) approximately wave shape, (u) approximately oval shape, or (v) approximately * shape, and preferably the tongue-shaped portions 6b defined by the periphery of the slits 6a and the slits 6a can be elastically deformed and are configured to adequately press down on the film on the back side surface portion 4c pulled out of the slits 6a to prevent it from being pulled out spontaneously, while the tongue-shaped portions 6b return to their original positions when the film on the back side surface portion 4c is pulled back.5(w), a small circular hole can be provided at the end of the slit 6a, overlapping the end of the slit 6a, thereby preventing the slit 6a from tearing or breaking. The dimensions of the slit 6a are not particularly limited. For example, the slit 6a can be set to a width sufficiently smaller than the width of the bag-shaped container 1, or conversely, it can be set to a width close to the width of the bag-shaped container 1. In the former case, the amount of film pulled out from the back side surface 4c is concentrated at the center of the bag-shaped container 1. In the latter case, the film pulled out from the back side surface 4c through the slit 6a is dispersed across the entire width, resulting in a relatively short amount of film in the pulling direction. Of course, the number of communication portions 6 does not necessarily have to be one for each bag-shaped container 1; multiple communication portions 6 can be provided at appropriate locations. For example, two communication sections may be provided horizontally or three communication sections may be provided vertically. Providing three communication sections vertically allows the communication sections to be optimally positioned depending on the volume of the contents to be contained in the container. Forming the slits 6a as openings 3 in a planar manner is advantageous in terms of ease and cost of manufacturing, but this is not limiting. The slits 6a may be formed as overlapping sections formed by cutting portions of the material constituting the communicating member 60 so that they overlap each other in a planar manner, with the slits 6a penetrating the overlapping sections from front to back. In this case, ventilation between the inside and outside of the bag-like container 1 through the slits 6a can be prevented. The communicating sections 6 may be provided with an openable lid to prevent ventilation between the inside and outside of the bag-like container 1 through the slits 6a.

[0042] 6, the sheet body 4 formed in this manner is valley-folded along the valley fold 4a, and the side edges 4bα and 4bβ of the front side surface portion 4b are welded to the opposing side edges 4cα and 4cβ of the back side surface portion 4c to form sealed side edges 4bcα and 4bcβ, i.e., two-sided sealing, to form the bag-like container 1. In this case, the area surrounded by the inner surface of the front side surface portion 4b and the inner surface of the back side surface portion 4c becomes the storage compartment 2. Note that the edge of the front side surface portion 4b, which is approximately parallel to the valley fold 4a in the unfolded state, and the edge of the back side surface portion 4c form the opening 3 of the bag-like container 1 in the two-sided sealed state. Here, the bag-shaped container 1 is configured with a two-sided seal, but this does not necessarily mean that it must be configured with a two-sided seal.It can be a bag made with a one-sided seal, in which one end of a cylindrical shape is sealed to form the bottom, or a bag made by sealing three sides of two independent sheet-like bodies 4, or a bag-shaped container 1 configured such that gussets etc. are provided by another sheet-like body 4, and the bag configuration itself is not particularly limited.

[0043] The loaf of bread B to be contained is placed through the opening 3 into the storage section 2 of the bag-shaped container 1, which is sealed on two sides, with its bottom facing the valley fold 4a that forms the center of the bottom of the storage section 2, and with the front and back of the loaf of bread B facing the sealed side edges 4bcα, 4bcβ that form the center of the side wall of the storage section 2. After storage, the middle part of the storage section 2 and the opening 3 is peelably welded across the opposing sealed side edges 4bcα, 4bcβ to form a semi-welded part 5. In this case, if the semi-welded part 5 is formed by welding at least a position closer to the storage section 2 than the penetration part across the opposing sealed side edges 4bcα, 4bcβ, it becomes possible to prevent the communication part 6 from connecting the inside and outside of the storage section 2 in the unopened bag-shaped container 1. In this case, the semi-welded portion 5 may be formed by folding the sealed side edges 4bcα, 4bcβ around the opening 3 into a gusset shape and releasably welding the abutting overlapping portions of the inner surfaces of the sheet body 4 together. The approximately triangular excess portion of the storage section 2 that protrudes outward, formed by the connection between the valley fold 4a on the bottom side of the storage section 2 and the sealed side edges 4bcα, 4bcβ of the side walls of the storage section 2, can be folded and stored directly below the bottom of the bread B, and the storage section 2 of the bag-like container 1 as a whole can be shaped into a cube. The bag-like container 1 shown in Figure 1 is in this shaped state. In addition, with regard to the relative positions of the semi-welded portion 5, which is formed by releasably bonding the front side surface portion 4b and the back side surface portion 4c together, and the communicating portion 6, it is desirable to provide the communicating portion 6 on the outer side closer to the opening 3 than the semi-welded portion 5. This is particularly important when the communicating portion 6 has a slit 6a that penetrates from the front to the back, because by positioning the slit 6a outside the semi-welded portion 5, it is possible to prevent ventilation between the inside and outside of the storage portion 2 through the slit 6a in an unopened state. Of course, it is also possible to configure the communicating portion 6 so that at least a portion thereof is formed within the area where the semi-welded portion 5 is formed, and even in this case, it is desirable to configure the semi-welded portion 5 to be closer to the storage portion 2 than the position where the slit 6a is formed.

[0044] From this state, the stored item, i.e., bread B, can be removed from the bag-shaped container 1 by opening the semi-sealed portion 5, as shown in Figure 7. As shown in Figure 7, by pulling the opening edge 3a of the front side surface 4b and the opening edge 3b of the back side surface 4c of the bag-shaped container 1 apart in an out-of-plane direction, the semi-sealed portion 5 on the front side surface 4b and the semi-sealed portion 5 on the back side surface 4c are separated from each other, resulting in a peeled state. Note that once they are pulled apart and peeled, they cannot be re-adhered, and therefore the bag-shaped container 1 cannot be resealed at the semi-sealed portion 5. By opening the bag-shaped container 1 in this opened state, the user can remove the stored item, bread B, from the storage section 2 through the opening 3, i.e., remove it from the bag-shaped container 1. The user consumes only the required amount of bread B, and the remaining bread is returned to the original bag-shaped container 1 through the opening 3 in the storage section 2 to protect it from deterioration due to moisture or dryness, the adhesion of dust, dirt, etc. This storage state is shown in Figure 8.

[0045] A simple temporary sealing using the communication part 6 that functions as a bag closure of the present invention will be described below. The use of the communication part 6 that functions as a bag closure of the present invention allows, for example, the bag-like container 1 to be simply and easily maintained in a closed state after it has been opened once, without using a separate bag closure (not shown), and can be realized regardless of whether or not there is an item contained therein, or whether or not it will be re-opened.

[0046] FIG. 9 shows the bag-shaped container 1 temporarily sealed using the communication portion 6, which functions as a bag closure according to the present invention. The temporary sealing procedure involves first pressing the inner surface of the back side portion 4c, around the area facing the communication portion 6, against the communication portion 6 provided in the front side portion 4b, and then pushing the communication portion 6 from the inside. At this time, the arched slit 6a provided in the communication portion 6 is elastically bent outward by the arched tongue-like portion 6b, expanding the slit 6a, and some of the film on the back side portion 4c is pushed out through the expanded slit 6a. Next, the pushed-in portion of the inner surface of the back side portion 4c is further pushed outward toward the outer surface of the communication portion 6. Then, while pinching and pulling out the inner surface of the back side portion 4c protruding outward from the communication portion 6, the bag-shaped container 1 is squeezed through the back side portion 4c to remove any unnecessary air from the storage section 2. At this time, the sheet-like body 4 centered on the back side surface portion 4c that is pulled out of the expanded slit 6a is pressed somewhat by the elastic restoring force of the arched tongue-like portion 6b of the slit 6a, which acts to narrow the expanded diameter of the slit 6a and prevents the sheet-like body 4 from spontaneously slipping out of the slit 6a to its original state. In this way, the volume of the storage section 2 is reduced to the desired capacity while removing unnecessary air, and while maintaining the reduced volume, the bag-like container 1 is closed, thereby blocking air communication between the inside and outside of the storage section 2. As shown in Figure 10, a retraction portion 7 formed in a tab or ribbon shape on the inside of the back side surface portion 4c facing the communicating portion 6 can be provided to facilitate pushing, pinching, or retracting, thereby making it easier to retract the opposing back side surface portion 4c into the communicating portion 6 via the retraction portion 7. Since the retraction portion 7 is provided at a position opposite the communicating portion 6, by making the retraction portion 7 protrude outside the front side surface portion 4b through the slit 6a of the communicating portion 6 when the bag-shaped container 1 is sealed by the semi-welded portion 5 as shown in Fig. 11, it is easy to imagine that the retraction portion 7 will be passed through the slit 6a when attempting to temporarily seal the bag after opening. Furthermore, if the retraction portion 7 in Fig. 11 is made to have an arrow pointing from the base end to the tip, it becomes even easier to imagine inserting the retraction portion 7 into the slit 6a.The recessed portion 7 is not limited to being provided at the height position of the back side surface portion opposite the communicating portion 6, but may be provided at the end portion on the opening 3 side, as shown in FIG.

[0047] When re-opening the bag-like container 1 in this temporarily sealed state, this can be achieved by holding the communicating portion 6 and pulling back the back side surface portion 4c that has been pulled out from the communicating portion 6 from its outer surface side. This pulling out and pulling back of the back side surface portion 4c into the communicating portion 6 can be repeated, so it is possible to temporarily seal and re-open the bag-like container 1 any number of times. Of course, because the communicating portion 6 is provided integrally with the bag-like container 1, it will not get lost or be accidentally swallowed by infants, as is the case with a separate bag closure.

[0048] In addition, a display unit can be provided around the communicating portion 6 to clearly indicate to the user that the communicating portion 6 is a component that performs the bag closure function of retracting the opposing back side surface portion 4c to transition the storage portion 2 to a closed state, or conversely, by pulling out the film on the retracted back side surface portion 4c and returning it to its original state to transition the storage portion 2 to an open state. This display unit can be provided as a separate sticker with the displayed content and attached to the periphery of the communicating portion 6, or it can be provided directly on the planar body by printing. Also, this display unit can be formed as a separate unit and written on the communicating portion 6 in advance.

[0049] The bag-shaped container 1 of the present invention is not limited to the configuration described above, and various modifications can be made based on conventionally known techniques, common knowledge, technical knowledge, etc. For example, a conventional separate, roughly C-shaped bag closure may be provided integrally with the bag-shaped container near its opening. [Explanation of symbols]

[0050] 1...bag-shaped container 2. Storage section 3. Opening 3a Opening edge 3b... Opening edge 4. Planar body 4a Valley fold 4b...Front side part 4bα...side part 4bβ...side part 4c...Dorsal side part 4cα...Side part 4cβ...side part 4bcα...Seal side 4bcβ...Seal side 5...half welded part 6...Communication section 60....Connecting member 6a···Slit 6b...lingula-like part 7. Retraction section B... Bread

Claims

1. It is made of a flexible planar body, The bag has at least a front side surface portion and a back side surface portion to define an inside and an outside, and has a storage portion capable of storing an object therein; One or more communication portions penetrating from the front to the back are provided in an appropriate portion of the front side surface portion and / or the back side surface portion, A bag-shaped container with a bag closure function, characterized in that the communicating portion can be inserted through the opposing back side portion or front side portion and retracted, and is configured to be able to transition to a temporary sealed state in which the storage portion is separated from the outside to a certain extent or more.

2. 2. The bag-shaped container having a bag closure function according to claim 1, wherein the communication portion has elasticity.

3. 2. The bag-shaped container having a bag closure function according to claim 1, wherein the communication portion has a slit or hole shape.

4. 4. The bag-like container having a bag closure function according to claim 3, wherein the communication portion has a tongue-shaped portion defined by the slit.

5. The bag-shaped container with bag closure function described in claim 3, characterized in that the communication portion is provided in the form of a slit or hole imitating a geometric shape such as a straight line, an I-shape, a V-shape, an inverted V-shape, a C-shape, a V-shape, a Λ-shape, a U-shape, an M-shape, an S-shape, a W-shape, an H-shape, a Z-shape, a cross shape, an *-shape, a ☆-shape, a O-shape, a △-shape, or a ◻-shape.

6. 4. The bag-shaped container having a bag closure function according to claim 3, wherein the communication portion is provided as an elongated slit or hole.

7. 2. The bag-shaped container having a bag closure function according to claim 1, wherein the communication portion is integral with or provided integrally with the planar body.

8. 2. The bag-shaped container having a bag closure function according to claim 1, wherein the communication portion is provided as a separate body from the planar body.

9. 9. The bag-shaped container having a bag closure function according to claim 8, wherein the communication portion is provided to the sheet-shaped body by welding.

10. 9. The bag-shaped container having a bag closure function according to claim 8, wherein the communication portion is configured to have an adhesive layer and is attached to the planar body by adhesive force.

11. 9. The bag-shaped container having a bag closure function according to claim 8, wherein the communication portion is provided so as to overlap a penetration portion that is provided in advance at an appropriate position on the sheet-shaped body.

12. 9. The bag-shaped container having a bag closure function according to claim 8, wherein the communication portion is provided detachably with respect to the planar body.

13. 2. The bag-shaped container having a bag closure function according to claim 1, wherein the communication portion is configured by providing a reinforcing portion around the communication portion.

14. 9. The bag-shaped container having a bag closure function according to claim 8, wherein the communication portion is separate from the sheet-shaped body and is mainly made of the same material as the sheet-shaped body.

15. 9. The bag-shaped container having a bag closure function according to claim 8, wherein the communication portion is separate from the sheet-shaped body and is mainly made of a material different from that of the sheet-shaped body.

16. 9. The bag-shaped container having a bag closure function according to claim 8, wherein the communication portion is made of a polyolefin resin as a main component.

17. 10. The bag-shaped container having a bag closure function according to claim 9, wherein the communication portion is made mainly of a polypropylene-based or polyethylene-based resin.

18. 2. The bag-shaped container having a bag closure function according to claim 1, wherein a plurality of the communication portions are provided.

19. 4. The bag-shaped container having a bag closure function according to claim 3, wherein the slits or holes are formed by overlapping cuts in parts of the material that constitutes the communication portion.

20. 2. The bag-shaped container having a bag closure function according to claim 1, wherein the communication portion has an openable and closable lid portion.

21. The bag-shaped container having a bag closure function as described in claim 1, characterized in that the bag-shaped container has a semi-welded portion formed by peelably welding together parts of the opposing inner surfaces of the front side portion and the back side portion.

22. The bag-shaped container having a bag closure function as described in claim 21, characterized in that the bag-shaped container has an opening that communicates with the inside and outside, and the communicating portion is provided in a position closer to the opening than the semi-welded portion.

23. 22. The bag-shaped container having a bag closure function according to claim 21, wherein at least a part of the communication portion is formed within the forming area of ​​the semi-welded portion.

24. The bag-shaped container with bag closure function described in claim 1, characterized in that the planar body has a retraction portion provided on the inside of the planar portion on the side opposite the communicating portion, and is configured to make it easier to retract the planar portion on the opposite side into the communicating portion via the retraction portion.

25. 2. The bag-shaped container having a bag closure function according to claim 1, wherein a display portion is provided around the communication portion.

26. 26. The bag-like container having a bag closure function according to claim 25, wherein the display portion is provided by printing.

Images