JP2013169995A - Self-standing packaging bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a self-standing packaging bag which has a resealing function and an excellent tight sealing property from which contents can be easily taken out, and which is high in the degree of freedom in design to arrange a content take-out position to a desired location.SOLUTION: A self-standing packaging bag 10 has a gusset structure at both or one of a bottom and a side, and can self-stands. The packaging bag 10 includes: a bag body 12 for storing contents therein; a take-out port H for taking the contents out of the bag body 12 or a scheduled take-out port 49 for forming the take-out port, the take-out port H and the scheduled take-out port provided at the bag body 12; and a flap member 50 which is arranged so as to be stuck to or peeled off from the bag body 12 so that the take-out port (opening H) or the scheduled take-out port 49 can be closed. When the flap member 50 is peeled off, the scheduled take-out port 49 is cut and raised, and then, functions as the take-out port.

Description

  The present invention relates to a self-supporting packaging bag, and in particular, foods such as confectionery, industrial materials, pharmaceuticals, and other various contents in addition to foods, and an opening serving as an outlet for taking out the contents. The present invention relates to a self-supporting packaging bag that is suitable for application to, for example, a box-type pouch having a portion.

As an example of the prior art as the background of the present invention, a reseal member for closing the take-out port portion so as to be openable and closable can be easily attached without requiring a complicated process, and the reseal member and the bag body A gusset bag that can be easily disposed of is proposed (for example, see Patent Document 1). The gusset bag includes a gusset bag body including a pair of front and rear front portions and a pair of left and right side folding portions that can be folded in a V shape inside the front portions, and one inner surface of the front and rear pair of front portions. And a resealable insertion sheet to which a longitudinal linear member that can be plastically deformed is attached and disposed in the gusset bag main body.
This gusset bag is used, for example, as a container for storing a powdery detergent as a container, and from the state where the upper end outlet is sealed and the product is made into a product, the user cuts this sealed portion along the cut line. Cut out and form an opening at the upper end so that the detergent can be repeatedly taken out from the upper end outlet and used, and each time a necessary amount of detergent is taken out, the outlet is closed so that it can be opened and closed. The detergent is used while being preserved.
The interpolating sheet member has flexibility enough to bend easily in response to the curved deformation of the front portion of the gusset bag body, and has shape retention rigidity enough to easily hold a smooth continuous surface. As a material to be provided, for example, it is formed using a transparent plastic sheet material, and slightly more than the rectangular shape of the inner side surface so that it can be easily inserted and arranged along the inner side surface of the front part of the gusset bag body. It has a small rectangular shape.
The longitudinal linear member is made of a metal wire having a thickness of, for example, 0.1 to 5.0 mm, preferably 0.3 to 1.0 mm, and is, for example, an insertion sheet member that is covered with an adhesive tape or the like. Are attached along both side edges. The longitudinal linear member can be easily bent and deformed with the force of the fingers of the hand, and has a plastic deformation property that can easily hold the bent shape, and the gusset bag is folded back at the take-out opening. Has a shape-retaining rigidity at the time of plastic deformation that effectively resists the folding restoring force of the sheet material at the take-out port and can stably hold the folded state of the take-out port. .
Therefore, in this gusset bag, the upper end of the pair of front portions at the upper end outlet is folded while the side folded portion is folded inward, and the upper outlet port is closed and the sheet material of the outlet portion along with the longitudinal linear member is closed. The take-out port is closed by the operation of folding the sheet downward along the folded part.

Further, as another example of the prior art as the background of the present invention, a pouch container having a simple resealing function that can be manufactured at a low cost and a package using the pouch container have been proposed (for example, , See Patent Document 2). The package using this pouch container is composed of a pair of front and back exterior sheets and a gusset sheet that is folded inwardly from the bottom of both exterior sheets to form a bottom gusset section, and the peripheral edge of the folded gusset sheet is the exterior sheet The upper edge of the exterior sheet and both side edges not heat sealed to the gusset sheet are heat sealed to each other to form a bag shape.
The exterior sheet forming the front side of the pouch container is divided into a first exterior sheet whose upper part is folded downward and a second exterior sheet that is superimposed on the folded portion of the exterior sheet. The overhanging portion having an open mouth that can be filled with the confectionery as the contents is formed at the tip by mutually heat-sealing both side edges of the overlapping portions of the two. In addition, the pouch container has a suspension hole formed in the upper edge portion of the exterior sheet heat-sealed with each other, and is a trigger for breaking the protruding portion in the width direction on both side edges of the protruding portion. A notch is formed.
The pouch container configured in this manner is filled with confectionery as the contents from its mouth in a state where the overhanging portion is raised, and more than the notch at the leading edge of the exterior sheet forming the mouth. When the mouth portion is closed by heat-sealing the front end portions, a package in which confectionery is hermetically packaged in a pouch container is formed. A package in which confectionery is sealed and packaged in a pouch container is stored and transported in a state where the overhanging portion is tilted, and is displayed in a suspended state by hooking a suspension hole on a suspension bar at a storefront. The
If a person who bought confectionery sealed in this pouch container eats confectionery, raise the overhang and form the mouth by breaking the tip of the overhang triggered by the notch Then, the mouth of the pouch container is gripped to widen the mouth, and the confectionery is taken out from the mouth. When the confectionery is left uneaten, the pouch container is simply resealed by tilting the overhang part formed with the mouth, and the pouch container can be stored in a self-supporting state.

As still another example of the prior art that is the background of the present invention, from the state in which the contents are enclosed and commercialized, the fracture region above the chuck mechanism is cut in the transverse direction and resealable. A bag with a chuck has been proposed in which the chuck mechanism is opened to form the upper end opening as an upper end take-out port and the contents can be taken out (see, for example, Patent Document 3).
In this bag with a chuck, the contents can be stored in a state in which the bag is resealed by taking a predetermined amount of the contents and then resealing the chuck mechanism, and the chuck mechanism is opened and resealed (resealed). ), The contents can be taken out by a predetermined amount and used over a long period of time. Then, when the chuck mechanism is opened and the upper end opening is formed, the bag with a chuck has a valley between the inner side surface of each front portion at the portion between the engagement portion and the engagement portion of the opening holding mechanism. The folding corner is formed by folding and engaging the engaging portion with the engaged portion, and the opening shape of the upper end opening is held in a substantially quadrangular size.

Japanese Patent Laying-Open No. 2005-75451 (FIGS. 1 to 3 and FIG. 7) JP 2008-265826 A (FIGS. 1 to 7) Japanese Patent Laying-Open No. 2011-20715 (FIGS. 1 to 4)

However, the gusset bag according to Patent Document 1 has a poor structure in which the take-out port portion is closed only by the operation of folding the sheet material of the take-out port portion downward along the folded portion together with the longitudinal linear member. Therefore, the sealing property is poor, and when the contents are confectionery such as rice crackers, problems such as moistening of rice crackers occur.
Further, in the pouch container and the package according to Patent Document 2, the mouth part is simply resealed by tilting it so that the mouth faces obliquely downward. It is poor in properties and causes problems such as moisture in the contents.
That is, in the prior arts described in Patent Document 1 and Patent Document 2, there is a problem with the hermeticity of the contents, so that it is difficult to store the contents for a long time.
On the other hand, according to the bag with a chuck according to Patent Document 3, since the contents can be stored in a state where the bag is resealed by resealing the chuck mechanism, it is described in Patent Document 1 and Patent Document 2 described above. Compared to the prior art that has been made, it is superior in terms of hermeticity of the contents.
However, in the bag with a chuck according to Patent Document 3, since the upper part of the bag has a simple laminated film structure, the attachment of the chuck mechanism is easy, but since the contents are filled from the upper part of the bag, When filling the contents into the bag, the chuck mechanism once fitted is separated, the contents are filled into the bag by opening the top outlet, and then the chuck mechanism is fitted again. It is necessary to heat seal the outside and completely seal it.
In addition, when filling the bag with the contents stored in the tray or when the contents are large, such as when the contents are large, the chuck mechanism once fitted is first fitted. Next, the engagement portion and the engagement portion are engaged, the opening shape of the upper end outlet is kept large and the contents are filled in the bag, and then the engagement portion and the engagement portion are again attached. It is necessary to separate the parts from each other, fit the chuck mechanism, and heat seal the outside to complete sealing. Therefore, in this bag with a chuck | zipper, the filling operation of the contents in the initial bag is troublesome. In addition, after filling the bag with the contents stored in the tray and completely sealing it, when taking the contents out of the bag, the tray must be taken out from the bag each time. Also, taking out the contents is troublesome and cumbersome.
Furthermore, in Patent Document 1, Patent Document 2 and Patent Document 3 described above, all of the prior arts are structurally arranged so that the opening serving as the content outlet is opened at the upper end of the bag body. The degree of freedom in design for appropriately arranging the take-out port at a desired position of the bag body is small.

  Therefore, the main object of the present invention is to have a reseal function, excellent sealing, easy to take out the contents, and a high degree of design freedom for placing the contents take-out position at a desired location. It is to provide a self-supporting packaging bag.

The present invention according to claim 1 is a self-supporting packaging bag having a gusset structure on both or one of the bottom part and the side part and capable of self-supporting, and the packaging bag is a bag main body for storing contents And a bag main body disposed in the bag main body so as to close the take-out port for taking out the contents from the bag main body or the planned take-out port for forming the take-out port, and the take-out port or the planned take-out port And a flap member that can be repeatedly bonded and peeled off, and the take-out opening scheduled portion is cut and raised by peeling off the flap member to become a take-out opening.
Since this invention concerning Claim 1 has the above-mentioned structure, when a flap member peels, an extraction port is exposed or an extraction port scheduled part is exposed as an extraction port. The contents can be easily taken out from the bag body through the exposed portion. In this case, the contents can be taken out from the bag body while the packaging bag is self-supporting. Further, the flap member has a function of sealing the contents in the bag body by being resealed at the exposed portion. Since the flap member is resealed so as to close the exposed outlet, it has excellent sealing properties. Furthermore, compared with the prior art shown in Patent Document 1 to Patent Document 3 described above, the present invention provides a bag body that has an arrangement in which an opening serving as a content outlet is opened at the upper end of the bag body. Since it has a gusset structure that enables it to stand on its own, remove the contents take-out port or the planned take-out port part at a portion other than the upper end of the bag body, for example, all of the front and back parts or both side parts of the bag body, Alternatively, it can be arranged on one of the front part and the rear part. For this reason, the degree of freedom in design for arranging the content take-out position at a desired location is high.
The present invention according to claim 2 is an invention dependent on the invention according to claim 1, wherein the bag body includes a laminate material having an inner layer and an outer layer, and the take-out port is a plan view disposed in the laminate material. The outlet opening portion includes a continuous or discontinuous weak line disposed in the bag body, and the weak line is either a cut line or a half cut line penetrating the laminate material or A self-supporting packaging bag including a combination, wherein when the flap member is peeled off, a portion inside the fragile line is cut and raised from the bag body to form a take-out port in the bag body. is there.
Since the present invention according to claim 2 has the above-described configuration, by peeling off the flap member, the opening provided in the bag body or the portion inside the fragile line is exposed, and the contents are removed. It becomes an outlet for taking out. In this case, the same effect as that of the first aspect of the invention can be obtained. That is, the present invention has a resealing function, has excellent sealing properties, is easy to take out the contents, and has a high degree of design freedom for placing the contents at a desired location. .
The present invention according to claim 3 is an invention subordinate to the invention according to claim 1 or 2, wherein the flap member has a length direction formed of a flexible film or sheet. Material, an adhesive layer formed on one main surface of the flap base material, which can be repeatedly adhered and peeled to the bag body, and disposed on one side in the length direction of the flap base material to open the flap member It is characterized in that it includes a knob part serving as a trigger, and a peeling regulating part that is disposed on both sides in the width direction of the flap base material on the side opposite to the side where the knob part is present, and prevents excessive peeling of the flap member. It is a self-supporting packaging bag.
Since this invention concerning Claim 3 has an above-described structure, it becomes possible to pick the edge part of a flap member easily with a knob | pick part, and the peeling operation of a flap member also becomes simple. Moreover, when peeling a flap member, it is possible to prevent excessive peeling of a flap member by a peeling control part.
The present invention according to claim 4 is an invention dependent on the invention according to any one of claims 1 to 3, wherein the flap member is a part of the flap base material when the flap member is opened. Is attached to the bag body as a remaining part without being peeled off, and has an opening display part that visually indicates that the flap base material has been opened, and the opening display part is a continuous or surrounding part of the flap base material. A self-contained packaging bag comprising a discontinuous go line, wherein the go line includes a cut line or a half cut line penetrating the flap base material.
Since the present invention according to claim 4 has the above-described configuration, when the flap member is peeled off, a part of the flap base material corresponding to the inner part of the surrounding line is not peeled off from the bag body, and the remaining It will be in the state still adhere | attached on the bag main body as a part. For this reason, the remaining portion has a function as an opening display portion for visually indicating that the flap base material has been opened.

  According to the self-supporting packaging bag of the present invention, it has a reseal function, is excellent in hermeticity, is easy to take out the contents, and has a high degree of design freedom for arranging the take-out position of the contents at a desired location. A self-supporting packaging bag can be provided.

  The above-described object, other objects, features, and advantages of the present invention will become more apparent from the following description of embodiments for carrying out the invention with reference to the drawings.

(A) is a perspective view which shows an example of the self-supporting packaging bag concerning this invention, (B) is a perspective view which shows the state in which a taking-out opening is formed by peeling operation | movement of the flap member shown to (A). It is. (A) is an enlarged sectional schematic view showing a main part of the take-out port and its periphery before the flap member is peeled off, and (B) is a take-out port formed by a peeling operation of the flap member and It is a principal part expanded sectional view solution figure which shows the periphery. (A) is the perspective view solution figure which shows the bag main body of the self-supporting packaging bag shown in FIG. 1, (B) is the center longitudinal end schematic solution figure of (A), (C) is the said bag main body. It is an illustration figure which shows the earthing | grounding area | region of the bottom part in a self-supporting state. (A) is a perspective view which shows the other example of the self-supporting packaging bag concerning this invention, (B) shows the state in which a taking-out opening is formed by peeling operation | movement of the flap member shown to (A). It is a perspective view. (A) is an enlarged sectional schematic view showing a main part of the take-out port and its periphery before the flap member is peeled off, and (B) is a take-out port formed by a peeling operation of the flap member and It is a principal part expanded sectional view solution figure which shows the periphery. (A) is a perspective view which shows the further another example of the self-supporting packaging bag concerning this invention, (B) shows the state by which the extraction port is formed by peeling operation | movement of the flap member shown to (A). It is a perspective view shown. (A) is a perspective view which shows the further another example of the self-supporting packaging bag concerning this invention, (B) shows the state by which the extraction port is formed by peeling operation | movement of the flap member shown to (A). It is a perspective view shown. (A) is a perspective view which shows the further another example of the self-supporting packaging bag concerning this invention, (B) shows the state by which the extraction port is formed by peeling operation | movement of the flap member shown to (A). It is a perspective view shown. It is a principal part perspective view which shows the state which accommodates a tray, for example in the self-supporting packaging bag shown in FIG. It is a perspective view which shows another example of the self-supporting packaging bag concerning this invention. It is a perspective view which shows another example of the self-supporting packaging bag concerning this invention, Comprising: It is a perspective view which shows the state in which an extraction opening is formed by opening operation of a flap member. It is a perspective view which shows another example of the self-supporting packaging bag concerning this invention. (A) is a perspective illustration figure which shows the bag main body of the self-supporting packaging bag shown in FIG. 12, (B) is a center longitudinal end schematic solution figure of (A), (C) is the said bag main body. It is an illustration figure which shows the grounding area | region of the bottom side in a self-supporting state.

  The self-supporting packaging bag according to the present invention has a reseal function, is excellent in hermeticity, is easy to operate when taking out the contents and filling the contents into the bag initially, The purpose of increasing the degree of design freedom for placing the take-out position at a desired location is to have a gusset structure on the bottom and / or both sides, and to be placed on the bag body that contains the contents, and the bag body. It is installed and can be repeatedly adhered to and peeled from the bag body so as to close the take-out port for taking out the contents from the bag body or the planned take-out port for forming the take-out port and the take-out port or the planned take-out port This is realized by configuring the take-out port planned portion to be cut out and formed as a take-out port by peeling off the flap member.

FIG. 1A is a perspective view showing an example of a self-supporting packaging bag according to the present invention, and FIG. 1B is a take-out port by a flap member peeling operation shown in FIG. It is a perspective view which shows the state in which is formed.
The self-supporting packaging bag 10 includes a bag body 12. As shown in FIG. 3 (A), the bag main body 12 is formed, for example, on the front side 14 and the back side 16 that are opposed to each other by forming the front side and the rear side of the bag main body 12, and the bag main body 12 on the inner side. Folding lines 18 and 20 are folded in a crease shape, and are formed in a cylindrical body having a pair of side portions 22 and 24 that form both sides of the bag body 12 and face each other. The bag body 12 has open mouth portions 12A and 12B on its upper end side and lower end side, respectively, and closes one open mouth portion 12B of the bag body 12 to form a bottom portion of the bag body 12. Part 26. The bottom surface portion 26 is connected to the front surface portion 14, the back surface portion 16, and the pair of side surface portions 22 and 24.

  On both sides of the bag body 12, the front part 14 and the rear part 16, and the pair of side parts 22 and 24 are heat-sealed, and the four heat-seal support parts 28, 30, 32, and 34 have appropriate widths. It is formed with. In addition, the bottom surface portion 26 is formed with a heat seal flange 36 that protrudes to the peripheral edge portion with a predetermined width by heat-sealing the peripheral edge portion of the lower end portion of the bag body 12 with an appropriate width.

  In this case, the bag body 12 has the folding lines 18 and 20 of the side surfaces 22 and 24 outward from the peripheral edge of the opening 12B in order to open one opening 12B once. On the other hand, it has an open surface formed so as to be bent and pulled out, and on this open surface, a bottom forming sheet having a rectangular shape in plan view, which becomes the bottom surface portion 26, has a heat seal collar over the entire periphery thereof. Heat sealed to form 36. Note that the bag body 12 shown in FIG. 3 (A) still has room to open to the extent that the folding lines 22 and 24 disappear, and the state of FIG. 3 (A) is not fully opened as a bag. Is illustrated.

  And the upper end opening part 38 of the bag main body 12 is formed with the heat seal upper end part 40 heat-sealed so as to close the upper end opening part 38 as shown in FIG. In this case, for example, the front part 14 and the rear part 16, the heat seal struts 28 and 30, and the heat seal struts 32 and 34 are overlapped in the width direction of the upper end opening 38 and heat sealed with an appropriate width. Thus, the heat seal upper end portion 40 is formed.

  The self-supporting property of the packaging bag 10 is due to the structural strength of the heat seal struts 28, 30, 32, 34, the gusset structure of the pair of side surface portions 22, 24 and the bottom surface portion 26, and the heat seal of the flat bottom surface portion 26. This can be achieved by the cooperative action with the part 36. In this case, the bottom surface portion 26 is a flat surface, and, as shown in FIGS. 3 (A) and 3 (B), a heat seal flange 36 is formed on the peripheral edge portion thereof. The area of the ground contact surface of the entire bottom surface when the packaging bag 10 is self-supported can be widened. Accordingly, the self-supporting packaging bag 10 has a three-dimensional box-like structure as a whole, and maintains stable self-supporting properties.

For example, as shown in FIG. 2A, the bag body 12 is formed of a laminate material 48 including an inner layer 42, an outer layer 44, and an adhesive layer 46 that bonds the inner layer 42 and the outer layer 44. In this embodiment, the laminate material 48 is formed of a laminate film of two or more layers, the inner layer 42 is made of a sealant film such as LLDPE (Linear Low Density Polyethylene) or CPP (Unstretched Polypropylene), and the outer layer 44 is made of Base films such as PET (polyethylene terephthalate), OPP (stretched polypropylene), and VMOPP (deposition stretched polypropylene) are used, and the adhesive layer 46 is a hot-melt acrylic adhesive for laminates. .
In addition, the laminate film may include an inner layer, an outer layer, and an intermediate layer. As the intermediate layer, an aluminum foil, an aluminum vapor deposition film, a transparent vapor deposition film, or the like is used.

In this embodiment, for example, as shown in FIG. 1A, a weak line 45 having a rectangular loop shape when viewed from the front is disposed at the center of the front portion 14 of the bag body 12. The fragile line 45 forms a discontinuous fragile line. The fragile line 45 includes, for example, four L-shaped cut lines 47 arranged at a slight interval. For example, as shown in FIG. 2A, the four cutting lines 47 are cutting lines that penetrate the laminate material 48, respectively. The four cutting lines 47 constituting the fragile line 45 may be discontinuous lines constituted by, for example, equidistant perforations.
A take-out opening planned portion 49 is disposed in an inner portion surrounded by the fragile line 45. The planned outlet 49 is a part that is cut and raised by the peeling operation of the flap member 50 to be described later and becomes an opening H. By extension, the opening is the contents (not shown) from the bag body 12. It is a take-out port for taking out.

  Further, a flap member 50 that can be repeatedly bonded and peeled to the front portion 14 is disposed at the center portion of the front portion 14 of the bag body 12 so as to close the take-out opening planned portion 49. The flap member 50 includes a flap base material 52 having a rectangular shape in front view, for example. The flap base material 52 is disposed on one side in the length direction and has a knob 54 that triggers a peeling operation (opening operation) of the flap member 50. The flap base 52 and the knob 52 are integrally formed of a flexible film or sheet such as PE (polyethylene) or PP (polypropylene).

  The flap member 50 has an adhesive layer 56 formed on one main surface (back surface) side thereof. As the adhesive layer 56, for example, a pressure-sensitive adhesive such as acrylic, polyester, or rubber is used. The flap member 50 can be repeatedly adhered to and peeled from the front portion 14 of the bag body 12 via the adhesive layer 56. In this case, the pressure-sensitive adhesive is not applied to the back surface of the knob 54 or the adhesive strength is deteriorated. For this reason, the knob 54 is easy to pick with a finger.

  In the present embodiment, for example, as shown in FIG. 1B and FIG. 2B, when the flap member 50 is peeled off, the extraction port planned portion 49 is exposed as the extraction port H. . In this case, the part h separated from the bag main body 12 remains adhered to the back side of the flap member 50 by the peeling operation (opening operation) of the flap member 50, and the trace of the separated part h remains at the take-out port H. It becomes. The contents (not shown) can be easily taken out from the bag body 12 through the take-out port H. Further, the flap member 50 has a function of sealing the contents in the bag body 12 by being resealed so as to completely cover the take-out port H. That is, since the flap member 50 is resealed so as to close the take-out port H, the flap member 50 has excellent sealing properties.

  Furthermore, since the bag body 12 has a gusset structure that enables the bag body 12 to stand on its own and the heat seal flange 36 of the flat bottom surface portion 26, an opening serving as a content outlet is structurally located at the upper end of the bag body. Compared to the prior art shown in Patent Literature 1 to Patent Literature 3 in which the opening is opened, the content outlet port H is located at a portion other than the upper end of the bag body 12, for example, other than the front portion 14 of the bag body 12. In addition, the bag body 12 can be disposed on all of the back surface portion 16 or the side surface portions 22 and 24, or on at least one of the front surface portion 14, the back surface portion 16, and the side surface portions 22 and 24. That is, in this embodiment, the degree of freedom in design for arranging the content take-out position at a desired location is high.

  On the other hand, in this embodiment, the bag body 12 is provided with an opening H that penetrates the laminate material 48 of the bag body 12 instead of the intended outlet 49, and the flap member closes the opening H. 50 may be provided.

FIG. 4A is a perspective view showing another example of the self-supporting packaging bag according to the present invention, and FIG. 4B is a view of the flap member peeling operation shown in FIG. It is a perspective view which shows the state in which an extraction port is formed.
The present embodiment is different from the first embodiment in that the weak line 45 is not a discontinuous line but a continuous weak line. In other words, in this embodiment, the fragile line 45 is formed by a half cut line 58 having a rectangular closed loop in front view, for example. As shown in FIGS. 5A and 5B, the half-cut line 58 cuts only the outer layer 44 and the adhesive layer 46 so as not to penetrate the laminate material 48 of the bag body 12, so that the inner layer 42 is formed. It has a configuration that does not cut. This embodiment also has the same operations and effects as the first embodiment described above.

6A is a perspective view showing still another example of a self-supporting packaging bag according to the present invention, and FIG. 6B is a flap member peeling operation shown in FIG. 6A. It is a perspective view which shows the state in which the extraction port is formed by.
Compared with the first and second embodiments described above, this embodiment has an unsealing display portion 60 that visually clearly indicates that the peeling operation (opening operation) by the flap member 50 has been performed. It is different in point. That is, in the present embodiment, the flap member 50 includes an unsealing display portion 60, and the unsealing display portion 60 includes a continuous or discontinuous surrounding line 62 that surrounds a part of the flap base material 52. The surrounding line 62 is disposed on both sides of the flap base material 52 in the width direction between the planned take-out opening portion 49 and the knob portion 54. As shown in FIG. 6A, the surrounding line 62 is formed in, for example, a bow shape, and one end and the other end thereof reach the peripheral edge of the flap member 50 to form a closed loop. The surrounding line 62 surrounds a part of the flap base material 52 and is formed by a cut line that penetrates the flap base material 52. The cutting line is formed by perforations, for example.

Therefore, in this embodiment, when the peeling operation (opening operation) of the flap member 50 is performed, the portion 64 surrounded by the surrounding line 62 is peeled off from the flap base material 52 as shown in FIG. Instead, it remains adhered to the bag body 12 as the remaining portion, and it is possible to visually indicate that the flap member 50 has been opened.
In addition to the cut line, the surrounding line 62 may be formed by, for example, a half cut line that does not penetrate the flap base material 52, or may be formed by a combination of the cut line and the half cut line.

  Further, in this embodiment, the closed loop is formed by connecting the bow-shaped surrounding line 62 and the peripheral edge of the flap member 50. However, the surrounding line 62 alone forms a closed loop shape. In this case, the go line 62 may be formed in, for example, a circular shape in the front view, an elliptical shape, a rectangular shape, a rectangular shape, a star shape, or other various closed loop shapes as seen in FIGS. The number is not limited to two, and may be three or more. Further, if the closed loop formed by the surrounding line 62 is an area of the flap base material 52 between the peripheral edge of the flap base material 52 and the peripheral edge of the outlet opening planned portion 49, the arrangement position thereof is arbitrarily changed. can do.

Further, in the present embodiment, the fragile line 45 is formed not by the half cut line 58 formed as a continuous fragile line but by, for example, a perforation 66 as a discontinuous fragile line, as compared to the above-described second embodiment. Is different.
Note that this embodiment also has the same operations and effects as the first and second embodiments described above.

7A is a perspective view showing still another example of a self-supporting packaging bag according to the present invention, and FIG. 7B is a flap member peeling operation shown in FIG. It is a perspective view which shows the state in which the extraction port is formed by.
The present embodiment is different from the first, second, and third embodiments described above in that it has a peeling restricting portion 70 that prevents excessive peeling of the flap member 50. In other words, in this embodiment, the separation regulating portions 70 are disposed on both sides in the width direction of the flap base material 52 on the side opposite to the side where the knob portion 54 is located. As shown in FIG. 7A, the peeling restricting portion 70 includes, for example, a J-shaped restricting line 72 in front view, and the restricting line 72 is between the other end edge in the length direction of the flap base material 52. Are arranged at an appropriate interval. The restriction line 72 is formed by a linear portion 74 and an arcuate portion 76. One end of the linear portion 74 reaches the peripheral edge of the flap base material 52, and the other end is connected to the arcuate portion 76. When the flap member 50 is peeled (opened) from the bag body 12, the peeling force is absorbed and the peeling force is weakened so that the flap member 50 does not peel excessively and peels off completely. It has a function to regulate the above. In this case, the regulating line 72 is configured to prevent the peeling force from being efficiently absorbed by the arcuate portion 76 and to prevent the flap member 50 from cracking and breaking.

In the present embodiment, the arcuate portion 76 of the regulation line 72 may be formed in a small-diameter semicircular arc or arcuate shape, or a small hole may be formed. In particular, by making the arcuate portion 76 into an arc shape or a small hole, the force in the peeling direction at the time of peeling (opening) of the flap member 50 is more efficiently distributed, so the flap member 50 is broken. Instead, the peeling of the flap member 50 is stopped by the arcuate portion 76 having an arc shape or a small hole shape.
Further, the regulation line 72 of the peeling regulation part 70 extends in the width direction of the edge 55 on the opposite side of the knob 54 of the flap member 50 and the edge 51 on one side of the length direction of the take-out port planned part 49. If the one end of the regulation line 72 reaches the peripheral edge of the flap base material 52 in the region between the lines 51a, the arrangement position can be arbitrarily changed.
Note that this embodiment also has the same operations and effects as the first and second embodiments described above.

FIG. 8A is a perspective view showing still another example of a self-supporting packaging bag according to the present invention, and FIG. 8B is a flap member peeling operation shown in FIG. It is a perspective view which shows the state in which the extraction port is formed by.
Compared with the above-described fourth embodiment, the present embodiment is not particularly such that the perforation 78 of the fragile line 45 that defines the outer shape of the planned outlet 49 is formed in a rectangular loop shape when viewed from the front. As shown to (A) of FIG. 8, it is different by the point formed in reverse front U-shape. That is, in the present embodiment, the region between the end edge 55 opposite to the knob portion 54 of the flap member 50 and the base end portion 79 between the one end 78a and the other end 78b of the perforation 78 of the fragile line 45 is provided. The fixing part 80 of the flap member 50 is formed. Since the flap member 50 is fixed to the bag body 12 when the flap member 50 is peeled off, the fixing portion 80 further prevents excessive peeling of the flap member 50 in combination with the function of the peel restricting portion 70. be able to.
In this case, the regulation line 72 of the separation regulating unit 70 has one end reaching the peripheral edge of the flap base material 52 and the other end positioned near the one end 78 a and the other end 78 b of the perforation 78 of the fragile line 45. It is preferable to be disposed. By doing so, the separation of the flap member 50 exceeds the line segment (not shown) connecting the one end 78a and the other end 78b of the perforation 78, and the edge 55 side opposite to the knob portion 54 of the flap member 50 When the process proceeds to the step, it is possible to prevent the occurrence of cracks and breakage of the flap member 50 in the vicinity of the one end 78a and the other end 78b due to the peeling stress.

  FIG. 9 is a perspective view of main parts showing a state in which, for example, a tray is accommodated in the self-supporting packaging bag shown in FIG. In the self-supporting packaging bag 10 of Example 1 shown in FIG. 1, for example, as in a bag with a chuck according to Patent Document 3, an initial filling operation of the contents in the bag is troublesome. In addition, the operability when the bag is initially filled with a tray T or the like in which contents (not shown) are stored is very simple. That is, since the packaging bag 10 shown in Example 1 has the structure excellent in self-supporting property which has a gusset structure as already stated, in the manufacturing process of the said packaging bag 10 as shown in FIG. The bag body 12 can be easily filled with the tray T from the opening 12A of the bag body 12 formed in the cylindrical body.

Moreover, in the packaging bag 10 of Example 1, even if it is other than the tray T, that is, when the contents are large, the initial filling operation of the contents in the bag is simple. Further, even when the contents are taken out from the bag main body 12, there is no need to take out the tray T from the bag once in each case as in the case of a bag with a chuck according to Patent Document 3, for example. By removing the flap member 50, the take-out port H is exposed from, for example, the front portion of the bag body 12, and the bag body is left in a state in which the packaging bag 10 is self-supported through the exposed take-out port H. The contents (not shown) can be taken out from the inside 12 very easily.
9 illustrates the state in which the tray T is accommodated in the bag body 12 by taking the self-supporting packaging bag 10 shown in the first embodiment as an example, but the above-described second and third embodiments are illustrated. The self-supporting packaging bag 10 shown in Example 4, Example 5, and Example 6 and Example 7 to be described later has similar actions and effects.

FIG. 10 is a perspective view showing another example of a self-supporting packaging bag according to the present invention.
The present embodiment has a flat surface having a gusset structure also on the top surface portion of the bag body 12 in comparison with the above-described Embodiment 1, Embodiment 2, Embodiment 3, Embodiment 4, and Embodiment 5. A rectangular parallelepiped box shape that is different in that a flap member 50 that can be repeatedly bonded and peeled is disposed so as to close the extraction port portion 49 and the extraction port portion 49 on the top surface portion, and has excellent self-standing properties. This is a packaging bag 10.
That is, the top surface portion 82 of the self-supporting packaging bag 10 is heat-sealed with a predetermined width to the peripheral portion by heat-sealing the three peripheral portions of the upper end of the bag body 12 with an appropriate width. A seal collar 84 is formed. For example, as shown in FIG. 3 (A), the bag body 12 is formed from the peripheral edge of the opening port portion 12A outward to temporarily open the opening port portion 12A of the bag body 12, and the folding lines 18 of the side surface portions 22 and 24 and 20 has an opening surface formed so as to be bent and pulled out in the direction opposite to the original folding direction, and the extended portion 86 extending from the top surface portion 82 and the back surface portion 16 is formed on the opening surface. The quadrangular top surface forming sheet is heat-sealed so as to form a heat-sealing flange 84 over the periphery of the three sides. And the edge part opening part of the extension part 86 is heat-sealed, as shown in FIG. The heat seal gripping portion 88 has a hanging hole 90 having an elliptical shape in front view, for example, at the center in the length direction, and the self-supporting packaging bag 10 is appropriately hung on a hanging bar or the like, for example, at a storefront. The hanging hole 90 can be hooked and displayed in a suspended state.

FIG. 11 is a perspective view showing still another example of the self-supporting packaging bag according to the present invention, and is a perspective view showing a state in which the take-out opening is formed by the opening operation of the flap member.
Compared with the first embodiment, the second embodiment, the third embodiment, the fourth embodiment, the fifth embodiment, and the sixth embodiment described above, the present embodiment particularly has a take-out port planned portion 92 that serves as a take-out port H and a flap member 94. However, they are different in that they have various decorative portions such as persons, animals, and symbol marks.

FIG. 12 is a perspective view showing still another example of the self-supporting packaging bag according to the present invention.
The self-supporting packaging bag 10 according to this example is different from the above-described Example 1, Example 2, Example 3, Example 4, Example 5, Example 6, and Example 7 in FIG. As shown in A), in particular, the bag body 12 is different in that it has a so-called standing pouch shape. That is, a gusset structure is provided by inserting a bottom sheet 98 on the bottom side between a pair of flexible sheet members 96 on the front side and the back side. In this case, both sides of the sheet member 96 are overlapped to form a side heat seal portion 97, and a bottom sheet 98 is inserted into one end side in the length direction of the sheet member 96 and heat sealed, whereby the bottom portion A heat seal portion 99 is formed. And as shown in FIG. 12, the upper end opening part of the bag main body 12 is closing the upper end opening part, and the heat-sealed upper end part 100 heat-sealed is formed.
In the present embodiment, compared to the structure of the bottom portion of the first to seventh embodiments described above, the area of the ground contact surface of the entire bottom portion when the packaging bag 10 is self-supported cannot be increased. As shown in (B) and (C), the packaging bag 10 is self-supporting due to the structural strength of the side heat seal portion 97 and the bottom heat seal portion 99 having rigidity. This self-supporting packaging bag 10 can be flattened by folding the bottom side after use, as compared with the above-described Examples 1 to 7, so that it is bulky when discarded. It has never been.

DESCRIPTION OF SYMBOLS 10 Self-supporting packaging bag 12 Bag main body 12A, 12B Opening part 14 Front part 16 Back part 18, 20 Folding line 22, 24 A pair of side part 26 Bottom part 28, 30, 32, 34 Heat seal support | pillar part 36 Heat seal Gutter part 38 Upper end opening part 40 Heat seal upper end part 42 Inner layer 44 Outer layer 45 Fragile line 46 Adhesive layer 47 Cutting line 48 Laminating material 49 Extraction port planned part 50 Flap member 51 Edge in the length direction of extraction part 51a Extension line 52 Flap Base Material 55 Edge of Flap Member Opposite Edge 54 Knock Portion 56 Adhesive Layer 58 Half Cut Line 60 Opening Display Unit 62 Go Line 64 Surrounded by Go Line 66 Perforation 70 Peeling Restriction Part 72 Regulation Line 74 Linear portion 76 Arc portion 78 Perforation 78a One end of perforation 8b The other end of the perforation 80 Fixed portion 82 Top surface portion 84 Heat seal collar portion 86 Extension portion 88 Heat seal gripping portion 90 Suspension hole 92 Extraction opening planned portion 94 Flap member 96 Sheet member 97 Side heat seal portion 98 Bottom sheet 99 Bottom heat seal part 100 Heat seal upper end part H Opening part (removal port)
h Separated part T Tray

Claims (4)

A self-supporting packaging bag having a gusset structure on both or one of the bottom part and the side part and capable of self-supporting,
The packaging bag is
A bag body for storing contents,
A take-out port for forming the take-out port or the take-out port for taking out the contents from the bag main body,
A flap member disposed so as to be able to repeatedly adhere and peel to the bag body so as to close the take-out port or the take-out port planned portion;
The self-standing packaging bag is characterized in that the take-out scheduled portion is cut and raised by peeling off the flap member to become a take-out port. The bag body includes a laminate material having an inner layer and an outer layer,
The outlet port includes an opening having an annular shape in plan view disposed in the laminate material,
The planned outlet opening portion has a continuous or discontinuous weak line disposed in the bag body, and the weak line is one of or a combination of a cut line and a half cut line penetrating the laminate material. Including
2. The self-supporting according to claim 1, wherein when the flap member is peeled, a portion inside the fragile line is cut and raised from the bag body, and the take-out port is formed in the bag body. Mold packaging bag. The flap member is
A flap substrate having a length direction formed of a flexible film or sheet;
An adhesive layer formed on one main surface of the flap base material and capable of being repeatedly adhered and peeled to the bag body;
It is arranged on one side in the length direction of the flap base material, and is arranged on both sides in the width direction of the flap base material on the side opposite to the side where the pick part is located, which serves as a trigger for opening the flap member. The self-supporting packaging bag according to claim 1, further comprising a peeling regulating portion that is provided and prevents excessive peeling of the flap member. When the flap member is opened, a part of the flap base material is adhered to the bag body as a remaining portion without being peeled off, and it is visually clearly shown that the flap base material is opened. With an opening display section
The unsealing display part includes a continuous or discontinuous surrounding line surrounding a part of the flap base material, and the surrounding line is either a cut line or a half cut line penetrating the flap base material or a combination thereof The self-supporting packaging bag according to any one of claims 1 to 3, wherein the packaging bag includes one.

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