JP2006123931A - Method for filling air bag of bag with air bag and method for packaging bag with air bag - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve self-supporting properties and shape retaining properties of a self-supporting bag (standing pouch) with a bottom gusset system. <P>SOLUTION: A non-fused part 3 extending in the up and down direction is formed between laminated films constituting a surface and a back face on a side edge part 2 of the self-standing bag 1. The non-fused part 3 has a closed contour, and a notch 4 communicating with the inside of the non-fused part 3 and the outside of the bag is formed on the laminated film of the non-fused part 3. An air blowing nozzle 17 is applied to the notch 4 to blow a compressed air into the inside of the non-fused part 3 from the notch 4. Under this condition, a lower part of the notch 4 is fused and sealed by pinching it between hot plates (a sealed part 12), and the compressed air is sealed in the non-fused part 3. The non-fused part 3 sealed with the compressed air (an air bag) improves the self-supporting properties and the shape retaining properties of the bottom gusset system. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a method for filling an airbag with an airbag provided with an airbag in order to enhance shape retention and self-supporting property of the bag, and a packaging method for a bag with an airbag including an airbag filling step. .

A self-supporting bag (standing pouch) is a bag in which the shape of the bottom surface or the shape of the bottom surface and the side surface is devised to improve the self-supporting property. For example, as described in Patent Documents 1 and 2, laminated films on both sides A self-standing bag of the bottom gusset type manufactured by sandwiching another folded film (bottom member) between the bottom of the (body member) and heat-sealing both side edges and the bottom edge is often used.
Self-supporting bag products filled with contents and sealed at the bag mouth can be used for display and desktop use, and their use is expanding as resource-saving packaging materials that replace rigid containers.

JP-A-8-119294 Japanese Patent Laid-Open No. 2004-256126

However, in the case of this self-supporting bag of the bottom gusset method, if the bag is large in size or has a spout attached to the bag mouth, the bag does not have a waist and the upper part of the bag is bent when displayed or used on a table, so that it does not look good. Or lose independence and fall. Further, as described in Patent Document 2, for example, when contents are poured from a self-supporting bag, there is a problem that the bag is easy to bend and is difficult to pour and difficult to hold. The same can be said for the latter problem for ordinary flat bags and the like.
The present invention has been made in view of the problems of such a bag, and aims to improve the shape retention of the bag, further improve the self-supporting property of the self-supporting bag, and improve the above-described problems. To do.

  In the bag with an airbag used in the present invention, a non-fused portion extending in the vertical direction is formed between the laminated films constituting the front and back surfaces at the side edge (one or both) of the bag, and the non-fused portion Has a closed contour, and a cut or a hole communicating the inside of the non-fused portion with the outside of the bag is formed in the laminated film of the non-fused portion. This notch or hole is formed on one or both sides of the non-fused portion. When the airbag-attached bag is a bottom gusset type self-standing bag, the lower end of the non-fused portion formed on the side edge portion is further extended downward to constitute the laminated film and the bottom surface constituting the front and back surfaces. The non-fused part can also be formed between the laminated films.

In another bag with an airbag used in the present invention, a non-fused portion extending in the vertical direction is formed inside at least one of the laminated films constituting the front and back surfaces, and the non-fused portion is closed. A notch or a hole having an open contour and communicating between the inside of the non-fused portion and the outside of the bag is formed in the laminated film of the non-fused portion. In this case, a non-fusion | fusion part can also be formed in the center part (between both-side edge part) of a bag. At that time, the notches or holes are formed in the film on the outer surface side (side facing the bag) of the non-fused portion.
In the bag with an airbag described above, the notch or the hole serves as an entrance when introducing gas into the non-fused portion. In any case, it is desirable that the non-fused portion is formed from the vicinity of the upper end of the side edge portion, and the notch or hole is formed near the upper end of the non-fused portion.
Furthermore, in this invention, the bag with a spout which attached the spout to the bag mouth of the said bag with an airbag can be used.

  The airbag filling method for a bag with an air bag according to the present invention is to form an air bag by blowing a gas into a non-fused portion of the bag with an air bag. Then, a gas is sealed in the non-fused portion by fusing and sealing the vicinity of the notch or the hole. As a specific gas blowing method, a nozzle outlet connected to a pressure gas supply source is applied to the notch or hole from one side, and the back side thereof is supported by a receiving member, and from the nozzle outlet. Gas is blown into the non-fused portion. Thereby, the airbag of the shape along the outline is formed in the said non-fusion | fusion part.

The packaging method of the bag with an air bag according to the present invention uses the bag with the air bag, and grips and suspends both side edges of the bag continuously or intermittently, and in the process of the transfer, An airbag filling process is added to a normal packaging process in which each packaging process such as opening of a bag mouth, filling of contents and sealing of a bag mouth is sequentially performed. The airbag filling process may be before or after the contents filling process (it does not have to be immediately before or after). In the air bag filling step, gas is blown into the non-fused portion through a notch or hole formed in the bag with the air bag, and then the vicinity of the notch or hole is fusion-sealed to supply gas to the non-fused portion. Encapsulate.
Moreover, the packaging method of the bag with an airbag which concerns on this invention uses the bag with an airbag in which the notch | incision or the hole is not formed (the non-fusion part is sealed). This packaging method relates to a bag with an air bag in which a cut or a hole is formed, in that an air introduction part (cut or hole) is formed before the air bag filling process (it is not necessarily the previous process). Different from the packaging method.

In the packaging method, in the bag mouth sealing step, it is desirable to seal the bag mouth including the cuts or holes.
In the packaging method, when an airbag filling step is placed after the content filling step, a bag mouth seal (the notch is simultaneously formed in the airbag filling step at the time of fusing and sealing the vicinity of the notch or hole. Alternatively, the position where the hole is removed can be sealed). In this case, the airbag filling step can also serve as a bag mouth sealing step (the bag mouth is not sealed again). Alternatively, in the bag mouth sealing step, the bag mouth can be sealed (second seal) including the notches or holes. In the latter case, the bag mouth can be sealed with a narrow line seal in the airbag filling step. In any case, when the non-fused portion is formed from the vicinity of the upper end of the side edge portion and the notch or the hole is disposed near the upper end of the non-fused portion, an existing bag with an airbag is used. There is an advantage that it is easy to carry out the air bag filling process and the cutting or fusing of holes using the sealing means.

Furthermore, the packaging method of the bag with an air bag according to the present invention can be applied to a bag with a spout. In the case of a bag with a spout, the spout (spout of a bag with a spout) is held by a bifurcated spout holding member inserted between upper and lower flanges formed on the spout, and this is transferred continuously or intermittently. In the course of the transfer, each packaging process such as filling of contents and capping to the spout mouth is sequentially performed. In the present invention, a bag with an air bag is used as a bag of a spout-equipped bag. As an example, an air bag filling process is provided.
Further, in this case, as the bag with the airbag, a bag having no cuts or holes as described above can be used. In this case, an air introduction part (cut or hole) forming step is further placed before the airbag filling step (not necessarily the immediately preceding step).

  The packaging method may include a spout-equipped bag forming step (spout and bag sealing step). In this case, a spout (a spout to which an air bag with a bag is not yet attached) is held by a spout holding member, and this is transferred continuously or intermittently. Processes such as temporary sealing of the spout and main sealing of the bag mouth and the spout are performed together with processes such as filling the contents and capping the spout. The air bag filling step is placed after the temporary sealing step (it is not necessary to be a step immediately after, for example, it may be placed after the main sealing), and as the bag with the air bag, the above-described incision or hole formation is performed. In the case of using a non-made one, an air introduction part (cut or hole) forming step is placed before the airbag filling step (not necessarily the immediately preceding step).

  In the packaging method (including a spout and bag sealing step), the main sealing step and the airbag filling step can be performed simultaneously. If the main sealing step is performed separately from the primary and secondary, for example, the primary main sealing step and the airbag filling step may be performed simultaneously, and the secondary sealing step and the incision or hole sealing may be performed simultaneously. it can. In any case, when the non-fused portion is formed from the vicinity of the upper end of the side edge portion and the notch or the hole is disposed near the upper end of the non-fused portion, an existing bag with an airbag is used. There is an advantage that it is easy to carry out the air bag filling process and the cutting or fusing of holes using the sealing means.

  According to the present invention, the shape retention of the bag is improved by the air bag in which the gas is sealed. For example, when the contents are poured from the bag, the problem of handling that the bag is bent or difficult to hold is improved. In the case of a self-supporting bag, the self-supporting property is improved, and the problem that the upper part of the bag is bent at the time of display or use on a tabletop or loses self-supporting property and falls is improved.

Hereinafter, the present invention will be specifically described with reference to FIGS.
FIG. 1 shows a bag with an air bag (bottom gusset type self-supporting bag). In the bag 1 shown in FIG. 1, a non-fused portion 3 (airbag) is formed on one of the side edge portions 2 to which the laminated films on the front and back sides are bonded by heat sealing. The non-fused portion 3 is a portion left unsealed without being pressurized when heat-sealing the side edge portion 2, and is elongated in the downward direction from the vicinity of the upper end of the side edge portion 2 in the side edge portion 2, An arcuate cut 4 is formed in the vicinity of the upper end thereof, which has a closed contour, and connects the inside of the fused part 3 and the outside of the bag. In FIG. 1, the hatched portion is the side edge region X where the laminated films A and B (see FIG. 2) constituting the body of the bag are directly bonded, and the other folded portions where the laminated films A and B constitute the bottom. Side edge region Y bonded with the laminated film sandwiched (here, the other laminated film itself is also bonded inside), and laminated films A and B are bonded to the other laminated film, respectively. The bottom region Z is shown, and the non-fused portion 3 is formed in the side edge region X, where the laminated films A and B are not bonded to each other.
The non-fused portion 3 is formed between the front and back laminated films A and B (see FIGS. 2A and 2B). The notch 4 may be formed only on one side (laminated film A; see FIG. 2 (a)) of the non-fused portion 3 or on both sides (laminated film A, B; see FIG. 2 (b)). You can also

In the bag 1 shown in FIG. 1, the non-fused portion 3 is formed between the laminated films A and B, but the non-fused portion can also be formed inside the laminated film A or B.
In this case, the non-fused portion can be formed by, for example, not applying an adhesive when the laminated films A and B are manufactured by laminating films. 2C and 2D are schematic views showing a state in which the non-fused portion 3a is formed on the laminated film Aa. Also in this case, the notch 4a may be formed only on one side (see FIG. 2C) of the non-fused portion 3a, or may be formed on both sides (see FIG. 2D).
Moreover, when forming a non-fusion part in the laminated | multilayer film A or B, it is also possible to form this non-fusion part not in the side edge part 2, but in the center part (contents accommodating part 5) of a bag. is there. In that case, the cut is naturally formed on the outer surface side of the non-fused portion.

FIG. 3 shows another bag with an air bag (bottom gusset type self-standing bag). The non-fused portion 7 (airbag) formed in the bag 6 shown in FIG. 3 is a portion left unsealed without being pressurized when heat-sealing the side edge portions 8 and 8 and the bottom portion. 8, 8 is elongated from the vicinity of the upper end in the downward direction, and the lower end is curved and further extends in parallel to the base, and is connected to form a U-shape as a whole. The non-fused portion 7 has a closed contour, and in the vicinity of the upper end thereof, + -shaped cuts 9 and 9 are formed for communicating the inside of the fused portion 7 and the outside of the bag. The bag 6 is also composed of front and back laminated films A and B (see FIGS. 2A and 2B) constituting the body of the bag and other folded laminated films constituting the bottom of the bag. The fused portion 7 is formed between the laminated films A and B in the side edge region X (see FIGS. 2A and 2B), and in the side edge region Y and the bottom region Z, the front and back layers are laminated. It is formed between the films A and B and the other laminated films (one on each side).
The notch 9 may be formed only on one side (laminated film A) of the non-fused portion 3 or may be formed on both sides (laminated films A and B).

  In the bag 6 shown in FIG. 3, the non-fused portion 7 is formed between the laminated films A and B and between the laminated films A and B and the other laminated film. It can also be formed inside B (see FIGS. 2C and 2D). In this case as well, the cuts may be formed only on one side of the non-fused part or on both sides.

4 to 6 show a method of filling the air bag (non-fused portion 3) of the bag 1 with gas in the packaging step of filling the bag 1 shown in FIG. 1 with the contents and sealing the bag mouth. It is a figure for demonstrating.
The bag 1 is gripped on both side edges 2 by a gripper of, for example, a known intermittent rotation type rotary bagging and packaging machine, suspended and transferred intermittently, and at each stop position, the opening of the bag mouth and filling of contents And each packaging process, such as sealing of a bag mouth, is performed sequentially.

  As shown in FIG. 4, the bag 1 held by the gripper 10 is filled with the content 11 at the content filling position (FIG. 4 (a)), and then rotates and stops at the airbag filling position. (FIG. 4 (b)), an airbag filling step is performed here. In the air bag filling step, a tip of an air blowing nozzle 17 described later is applied to the notch 4, and gas is blown into the non-fused portion 3 through the notch 4, followed by heat sealing (seal portion 12) immediately below the notch 4. The non-fusion part 3 is sealed and pressurized gas is enclosed. As a result, a non-fused portion 3 (airbag 3A) filled with pressurized gas is formed on the side edge portion 2 of the bag 1. Further, in the air bag filling step, the upper end of the bag mouth is line-sealed (line seal portion 13) simultaneously with the heat seal immediately below the notch 4. Subsequently, the bag 1 rotates and stops at the sealing position (FIG. 4C), and a sealing process is performed here. In this sealing step, the bag mouth including the cut 4 is solid-sealed (seal part 14). At this time, the appearance is improved by fusing the portions of the cuts 4.

In this example, the cut 4 is formed in the non-fused portion 3 as a gas blowing port, but a hole may be formed instead of the cut 4. However, in the case of a hole, the melted sealant material (film) adheres to the sealing hot plate or protrudes from the hole to the surroundings, so it is desirable to make a cut that can prevent this. In this example, the cut 4 is formed in the vicinity of the upper end of the non-fused portion 3, but the position thereof is not particularly limited. However, by forming it in the vicinity of the upper end, it is possible to enclose gas by sealing just underneath, and as shown in FIG. 5 described later, the non-fused portion 3 is normally sealed with a line seal. Since it is performed at the same time and a receiving member (hot plate) for wire sealing can be used, it is desirable to form it near the upper end.
Further, in this example, the bag mouth is sealed in each of the airbag filling process and the sealing process (two times in total), but the sealing in the airbag filling process is omitted, and the sealing is performed only in the sealing process. Alternatively, it may be selected as appropriate to perform only the sealing in the airbag filling step and omit the sealing step.

Next, the steps shown in FIG. 4 will be described more specifically with reference to FIGS.
5 (a) to 6 (d) show an airbag filling process performed on the bag 1 stopped at the airbag filling position (already filled with the contents) and the bag 1 stopped at the sealing position. The sealing steps performed in this way are shown in order. At the air bag filling position, on one side, a heat plate 15 for sealing the bag mouth, a heat plate 16 for sealing the non-fused portion 3, and an air blowing nozzle 17 are arranged at an intermediate height thereof. A hot plate 18 as a receiving member is disposed opposite to the other side of the bag 1. The hot plates 15 and 16 and the air blowing nozzle 17 can advance and retreat simultaneously. The air blowing nozzle 17 is biased forward by a spring 19 and slightly protrudes forward from the hot plates 15 and 16.

  When the bag 1 stops at the airbag filling position (FIG. 5 (a)), as shown in FIG. 5 (b), the hot plates 15, 16 and the air blowing nozzle 17 move forward to form a cylindrical shape of the air blowing nozzle 17. The tip of the abutment comes into contact with the periphery of the notch 4 formed in the non-fused portion 3, while the heat plate 18 advances on the back side thereof to support the back side of the bag 1 (the back side of the notch 4). At the same time, air is blown out from the air blowing nozzle 17. When the air blowing starts, the air pressure causes the air blowing nozzle 17 to slightly recede against the urging force due to the air pressure, creating a gap between the laminated films A and B, and the air passes through the notch 4. The non-fused portion 3 is blown into the non-fused portion 3, and the non-fused portion 3 swells. The relationship between the urging force and the air pressure is set to F <P × S, where F is the urging force, P is the air pressure, and S is the nozzle opening area. Note that air blowing is not performed in a state where the air blowing nozzle 17 and the hot plate 18 sandwich the bag 1 and the laminated films A and B are in close contact with each other around the entire cut 4. It is necessary that a gap is formed between the laminated films A and B in the entire periphery or a part of the periphery of the notch 4.

Subsequently, as shown in FIG. 5 (c), the hot plates 15 and 16 further advance, the hot plate 15 comes into contact with the upper end portion of the bag mouth of the bag 1, and the hot plate 16 is attached to the non-fused portion 3. The line seal portion 13 and the seal portion 12 are formed in contact with the position immediately below the cut, and at the same time, the air blowing by the air blowing nozzle 17 is stopped.
Subsequently, as shown in FIG. 6 (d), the hot plates 15, 16 and the air blowing nozzle 17 and the hot plate 18 retreat, respectively, while the bag 1 rotates and moves to the next sealing position ( FIG. 6 (e)). A pair of hot plates 21 and 22 are opposed to each other at the seal position, and when the bag 1 stops at this position, the hot plates 21 and 22 move forward and cut as shown in FIG. 4, the bag mouth is solid-sealed, and the seal portion 14 is formed.
After the seal portion 14 is formed, the bag 1 rotates and is cooled and sealed at the next cooling position (not shown), and the gripper is opened and discharged at the discharge position.

In this example, the bag 1 is transferred by intermittent rotation, and each packaging processing step (including the air bag filling step) is performed in the transfer process (when stopped), but the bag 1 is transferred by continuous rotation or continuous movement. The above processes can also be performed in the transfer process.
Further, in the above example, a bag having a notch 4 in advance in the non-fused portion 3 is used. However, a bag having a non-fused portion without this notch may be used. In that case, it is necessary to add an air introduction portion forming step, that is, a step of forming a cut (or a hole) in the non-fused portion before the airbag filling step (not necessarily immediately before). In this air introducing portion forming step, for example, the back surface of the non-fused portion of the bag is supported by the receiving member, the cutter is pressed from the front surface side of the non-fused portion, and the predetermined depth similar to the notch 4 is applied to the non-fused portion. A notch is formed.

Further, in the above example, when the air blowing nozzle 17 is moved forward and its tip is applied to the notch 4, the portion is once sandwiched between the hot plate 18, and when the blowing is started, the air blowing nozzle is caused by the air pressure. 17 is slightly retracted, but the forward position of the air blowing nozzle 17 and / or the hot plate 18 is restricted, and the predetermined distance is determined from the thickness of the bag 1 between the tip of the air blowing nozzle 17 and the hot plate 18 from the beginning. A large gap may be opened. In this case, since the laminated films A and B do not adhere to each other around the notch 4, air can be blown without setting the urging force and the air pressure in a relationship of F <P × S. When the hot plates 15 and 16 and the air blowing nozzle can be advanced and retracted independently, the air blowing nozzle 17 does not need to be able to advance and retract by the spring 19.
In addition, various means for allowing air to be blown through the notch 4 without causing the laminated films A and B to adhere to each other around the notch 4 during air blowing can be considered. For example, instead of retracting the air blowing nozzle 17, the hot plate 18 may be moved back and forth by a spring or the like, and the hot plate 1 may be moved backward by the air pressure from the air blowing nozzle 17. Further, a part of the hot plate 18 (a portion where the bag 1 is sandwiched between the air blowing nozzles 17) is formed of an elastic body, and the portion of the hot plate 18 may be retracted by the air pressure from the air blowing nozzle 17. Good. In these means, it is not necessary to make the air blowing nozzle 17 advanceable and retractable by the spring 19.

FIG. 8 shows another air blowing nozzle 23 which is different from the air blowing nozzle 17 in that a resin tube 24 is attached to the tip of the nozzle. The resin tube 22 has a cylindrical shape, and the upper half of the tip has a vertical abutting surface, but the lower half is cut away and has a receded shape. Therefore, when the tip of the air blowing nozzle 23 is brought into contact with the periphery of the notch 4 and the bag 1 is sandwiched between the hot plate 18, the upper half contacts the surface of the bag 1, but the lower half does not contact. . Therefore, when the air blowing nozzle 23 is applied to the notch 4 and air is blown, even if the upper half is in contact with the lower half, the laminated films A and B are not in close contact around the notch 4 in the lower half. Air is blown into the non-fused portion 3. Therefore, in this case, it is not necessary to set the urging force and the air pressure in a relationship of F <P × S.
Instead of forming a notch at the tip of the air blowing nozzle 23, a similar notch may be formed on the hot plate 18 side.

In FIGS. 9-12, a spout and a bag (a self-supporting bag of the bottom gusset type) are sealed to create a bag with a spout, subsequently filled with contents, and sealed with a spout mouth. It is a figure for demonstrating the method of filling gas into the airbag (non-fused part 3) of a bag simultaneously.
The spout and airbag-equipped bag 31 (hereinafter referred to as “spout-equipped bag 31”) is the one in which the spout 32 and the airbag-equipped bag 33 (hereinafter referred to as “bag 33”) are sealed, and until the bag 33 is sealed by the spout 32. This is the same as the bag 1 shown above.
The spout 32 is supplied to and held by a spout holding member 34 attached to the outer periphery of the rotary table of an intermittent rotary type rotary bag filling and packaging machine described in JP 2004-255742 A, for example, intermittently. At each stop position, supply of the bag 33 and temporary seal of the bag mouth and spout, main seal of the bag mouth and spout (primary and secondary), filling of contents and capping to the spout mouth, etc. Each packaging process is performed sequentially. The spout holding member 34 is a bifurcated member, and is inserted between the upper and lower flanges 35 and 36 formed on the spout 32 to hold the spout 32.

As shown in FIG. 9, the bag 33 is supplied to the spout 32 held by the spout holding member 34 at the temporary sealing step position (FIG. 9A), and the adhesive portion 32 a of the spout 32 is placed in the bag mouth of the bag 33. The spout 32 and the bag 33 are temporarily sealed (temporary seal portion 37). Subsequently, the temporarily sealed spout-equipped bag 31 is rotated and stopped at the primary main seal position (FIG. 9B), where the primary main seal process is performed. In the primary main sealing step, the adhesive portion 32a of the spout 32 and the bag mouth of the bag 33 are primarily sealed, and at the same time, a part of the bag mouth of the bag 33 is also sealed (primary main seal portion 38). This primary main seal position is also an airbag filling position, and the airbag filling process is performed simultaneously with the primary main sealing process. In the air bag filling process, as described above with reference to FIG. 4, an air blowing nozzle 41 to be described later is applied to the notch 4, gas is blown into the non-fused portion 3 through the notch 4, and then immediately below the notch 4. The non-fused part 3 is sealed by heat sealing (seal part 39) and pressurized gas is enclosed. Thereby, the non-fusion | fusion part (airbag 3A) in which the pressurized gas was enclosed is formed.
Subsequently, the spout-equipped bag 31 is rotated and stopped at the secondary main seal position (FIG. 9C), where the secondary main seal process is performed. In the secondary main sealing step, the adhesive portion of the spout 32 and the bag 33 are secondarily sealed, and at the same time, the entire upper edge including the bag mouth of the bag 33 is sealed (secondary main sealing portion 40). At this time, the portion of the cut 4 is also sealed at the same time.

Next, the steps shown in FIG. 9 will be described more specifically with reference to FIGS.
10 (a) to 11 (d) show a primary main sealing process performed on the spout-equipped bag 31 stopped at the primary main sealing position (which is also the airbag filling position) next to the temporary sealing position; An air bag filling process is shown in order. At the primary main seal position (airbag filling position), on one side, a heat plate 41 for primary main seal, a heat plate 42 for sealing the non-fused portion 3, and an air blowing nozzle 43 are arranged. On the other side of the spout-equipped bag 31, a heat plate 44 for primary sealing is disposed oppositely. The hot plate 44 is wider than the hot plate 41 and also functions as a receiving member for the air blowing nozzle 43 and the hot plate 42. Similarly to the air blowing nozzle 17 described above, the air blowing nozzle 43 is biased forward by a spring and slightly protrudes forward from the heat plates 41 and 42.

When the bag 1 stops at the primary main seal position (airbag filling position) (FIG. 10A), as shown in FIG. 10B, the hot plates 41 and 42 and the air blowing nozzle 43 advance simultaneously. The cylindrical tip of the air blowing nozzle 43 comes into contact with the periphery of the notch 4 formed in the non-fused portion 3, while the heat plate 44 advances on the back side thereof and the bag mouth of the bag 33 (spout) At the same time as supporting the back side of the non-fused portion 3 (the back side of the cut 4), and at the same time, air is blown from the air blowing nozzle 43, and the air is not melted through the cut 4. The non-fused part 3 is blown into the wearing part 3 and swells.
Subsequently, as shown in FIG. 10C, the hot plates 41 and 42 further move forward, the hot plate 41 abuts against the bag mouth of the bag 33 (the location of the adhesive portion 32a of the spout 32), and the hot plate 42. Comes into contact with the position immediately below the notch of the non-fused portion 3 to form the primary main seal portion 38 and the seal portion 39, respectively, and the air blowing by the air blowing nozzle 43 stops.

Subsequently, as shown in FIG. 11 (d), the hot plates 41 and 42 and the air blowing nozzle 43 and the hot plate 44 retreat, respectively, while the bag 33 rotates and moves to the next secondary seal position. Move (FIG. 11 (e)). A pair of hot plates 45 and 46 are disposed opposite to each other at the secondary seal position with the spout-equipped bag 31 interposed therebetween. When the spout-equipped bag 31 stops at this position, as shown in FIG. , 46 move forward to secondary seal the adhesive portion 32a of the spout 32 and the bag 33, and at the same time, seal the entire upper edge including the bag mouth of the bag 33, including the notch 4, and the secondary main seal portion. 40 is formed.
Subsequently, as shown in FIG. 12G, the hot plates 45 and 46 are retracted. Further, the spout-equipped bag 31 rotates and stops at the next content filling position (FIG. 12 (h)), and receives liquid filling from the liquid filling nozzle 47 through the spout 32 (content filling step). . Further, the spout-equipped bag 31 is rotated and stopped at the next capping position (FIG. 12 (i)), where the cap 49 is fitted to the spout opening by the capper 48 (capping step).
After the capping step is finished, the spout-equipped bag 31 rotates and is removed from the spout holding member 34 at a next discharge position (not shown) and discharged.

  In the intermittent rotation type rotary bagging and packaging machine, the spout 32 is supplied to the spout holding member 34 attached to the outer periphery of the rotary table at equal intervals, and the spout 32 held by the spout holding member 34 is supplied. The bag 33 was supplied, and then the bag mouth and the spout 32 were sealed. That is, the spout-equipped bag 31 is formed as one of a series of packaging steps in the bag-packing and packaging machine. Instead, a spout with a bag sealed in advance (a spout-equipped bag) is supplied to the spout holding member. You can also. In this case, the temporary sealing step and the main sealing step in the bag filling and packaging machine are unnecessary, and the airbag filling step is performed as a step unrelated to the primary main seal. Moreover, the process of sealing and closing on the notch 4 can be added as needed.

It is a typical front view of the bag with an airbag used for this invention. It is typical sectional drawing of the melt | fusion part of the bag with an airbag used for this invention. It is a typical front view of another bag with an air bag used for the present invention. It is a typical front view explaining the packaging method of the bag with an airbag which concerns on this invention in order of a process. It is a typical side view explaining the packaging method of the bag with an airbag which concerns on this invention in order of a process. It is a typical side view which similarly explains the subsequent process in order of processes. It is a typical side view (part cross section) explaining the blowing method of the air to a non-fusion part. It is a typical side view explaining another blowing method of the air to a non-fusion | fusion part. It is a typical front view explaining the packaging method of the bag with an airbag (with spout) which concerns on this invention in order of a process. It is a typical side view explaining the packaging method of the bag with an airbag (with a spout) which concerns on this invention in order of a process. It is a typical side view which similarly explains the subsequent process in order of processes. It is a typical side view which similarly explains the subsequent process in order of processes.

Explanation of symbols

1,6,33 Bag with airbag 2 Side edge 3,7 Non-fused part 4,9 Notch 12-14, 38-40 Seal part 15, 16, 18, 21, 22, 41, 42, 44-46 Hot plate 17, 23, 43 Air blowing nozzle 31 Bag with air bag (with spout)
32 Spout

Claims (49)

A non-fused portion extending in the vertical direction is formed between the laminated films constituting the front and back surfaces at the side edge of the bag, the non-fused portion has a closed contour, and the inside of the non-fused portion and the outside of the bag are Using a bag with an airbag in which a cut or hole to be communicated is formed in the laminated film of the non-fused portion, a gas is blown into the non-fused portion through the notch or hole formed in the bag with the airbag, and then An air bag filling method for a bag with an air bag, characterized in that a gas is sealed in the non-fused portion by fusing and sealing the vicinity of a cut or a hole. The method for filling an airbag with an airbag according to claim 1, wherein the bag with an airbag is a bottom gusset type self-supporting bag. The airbag-attached bag has a lower end of the non-fused portion formed on the side edge portion extending further downward, and the non-fused also between the laminated film constituting the front and back surfaces and the laminated film constituting the bottom surface. The method for filling an airbag with a bag according to claim 2, wherein a portion is formed. A non-fused portion extending in the vertical direction is formed inside at least one of the laminated films constituting the front and back surfaces of the bag, the non-fused portion has a closed contour, and the non-fused portion and the bag Using a bag with an air bag in which a notch or hole communicating with the outside is formed in the laminated film of the non-fused portion, a gas is blown into the non-fused portion through the notch or hole formed in the bag with the air bag, Next, an air bag filling method for a bag with an air bag, wherein the vicinity of the notch or the hole is fusion-sealed and gas is sealed in the non-fusion portion. The method for filling an airbag with an airbag according to claim 4, wherein the bag with an airbag is a bottom gusset type self-supporting bag. The non-fused portion of the airbag-attached bag is formed from the vicinity of the upper end of the side edge portion, and the cut or the hole is formed near the upper end of the non-fused portion. An airbag filling method for a bag with an airbag described in any one of 5 above. The said bag with an airbag is a bag with a spout by which the spout was inserted and sealed by the bag mouth, The airbag filling method of the bag with an airbag described in any one of Claims 1-6 characterized by the above-mentioned. A nozzle outlet connected to a pressure gas supply source is applied to the notch or hole from one side, the back side is supported by a receiving member, and gas is blown into the non-fused part from the nozzle outlet. An airbag filling method for a bag with an airbag according to any one of claims 1 to 7. A bag that grips and suspends both side edges of the bag continuously or intermittently, and sequentially performs each packaging process such as opening the bag mouth, filling contents, and sealing the bag mouth in the course of the transfer. In the packaging method, a non-fused portion extending in the vertical direction is formed between the laminated films constituting the front and back surfaces at the side edge portion as the bag, and the non-fused portion has a closed contour, Using a bag with an air bag in which a cut or a hole communicating with the inside of the fused part and the outside of the bag is formed in the laminated film of the non-fused part, an airbag filling process is placed in a series of packaging processes, and the airbag In the filling step, gas is blown into the non-fused portion through a notch or hole formed in the bag with the airbag, and then the gas is sealed in the non-fused portion by fusing and sealing the vicinity of the notch or hole. Air bag characterized by Method of packaging can bag. The packaging method for a bag with an air bag according to claim 9, wherein the bag with an air bag is a bottom gusset type self-supporting bag. The airbag-attached bag has a lower end of the non-fused portion formed on the side edge portion extending further downward, and the non-fused also between the laminated film constituting the front and back surfaces and the laminated film constituting the bottom surface. The packaging method for a bag with an air bag according to claim 10, wherein a portion is formed. A bag that grips and suspends both side edges of the bag continuously or intermittently, and sequentially performs each packaging process such as opening the bag mouth, filling contents, and sealing the bag mouth in the course of the transfer. In the packaging method, as the bag, a non-fused portion extending in the vertical direction is formed inside at least one of the laminated films constituting the front and back surfaces, and the non-fused portion has a closed contour, Using a bag with an air bag in which a notch or a hole communicating the inside of the non-fused portion and the outside of the bag is formed in the laminated film of the non-fused portion, an air bag filling step is placed in a series of packaging steps, In the air bag filling step, gas is blown into the non-fused portion through a notch or hole formed in the bag with the air bag, and then the vicinity of the notch or hole is fusion-sealed to supply gas to the non-fused portion. Specially sealed Packaging method of the bag with the air bag to be. The packaging method for a bag with an air bag according to claim 12, wherein the bag with an air bag is a bottom gusset type self-supporting bag. In the bag with the airbag, the non-fused portion is formed from the vicinity of the upper end of the side edge portion, and the notch or the hole is formed near the upper end of the non-fused portion. Or the bag mouth is fusion-sealed including a hole, The packaging method of the bag with an air bag described in any one of Claims 9-13 characterized by the above-mentioned. In the bag with an airbag, a non-fused portion is formed from the vicinity of the upper end of the side edge portion, and the notch or hole is formed near the upper end of the non-fused portion, and the airbag filling step is a filling of contents In the airbag filling step, the bag mouth is fused and sealed at the position where the cut or hole is removed at the same time when the vicinity of the cut or hole is fusion sealed. The packaging method for a bag with an air bag according to any one of claims 9 to 13, wherein the process also serves as a bag mouth sealing step. In the bag with an airbag, a non-fused portion is formed from the vicinity of the upper end of the side edge portion, and the notch or hole is formed near the upper end of the non-fused portion, and the airbag filling step is a filling of contents In the airbag filling step, the bag mouth is fused and sealed at the position where the cut or hole is removed at the same time when the vicinity of the cut or hole is fusion sealed. 14. The method for packaging a bag with an air bag according to any one of claims 9 to 13, wherein the bag mouth is fusion-sealed including the notch or the hole in the process. The method for packaging a bag with an air bag according to claim 16, wherein in the air bag filling step, the fusion sealing of the bag mouth is performed with a narrow line seal. A bag that grips and suspends both side edges of the bag continuously or intermittently, and sequentially performs each packaging step such as opening the bag mouth, filling the contents, and sealing the bag mouth in the course of the transfer. In this packaging method, as the bag, a bag with an airbag having a non-fused portion extending in the vertical direction between the laminated films constituting the front and back surfaces at the side edge portion and having a closed contour. The air introduction part forming process and the air bag filling process are placed in a series of packaging processes. In the air introduction part forming process, a notch or a hole for communicating the inside of the non-fused part with the outside of the bag is formed in the non-fused part. In the airbag filling step, gas is blown into the non-fused portion through the notch or hole, and then the vicinity of the notch or hole is fused and sealed to form the non-fused portion. Enclose gas in Packaging method of the bag with air bag and said. The packaging method for a bag with an air bag according to claim 18, wherein the bag with an air bag is a bottom gusset type self-supporting bag. The airbag-attached bag has a lower end of the non-fused portion formed on the side edge portion extending further downward, and the non-fused also between the laminated film constituting the front and back surfaces and the laminated film constituting the bottom surface. The packaging method for a bag with an air bag according to claim 19, wherein a portion is formed. A bag that grips and suspends both side edges of the bag continuously or intermittently, and sequentially performs each packaging process such as opening the bag mouth, filling contents, and sealing the bag mouth in the course of the transfer. In this packaging method, an air bag having a contour in which a non-fused portion extending in the vertical direction is formed inside at least one of the laminated films constituting the front and back surfaces as the bag, and the non-fused portion is closed. Using an attached bag, an air introduction part forming process and an air bag filling process are placed in a series of packaging processes. In the air introduction part forming process, the notch or the hole that communicates the inside of the non-fused part and the outside of the bag is provided. In the air bag filling step, gas is blown into the non-fused portion through the notch or hole, and then the vicinity of the notch or hole is fused and sealed to form the non-fused film. Landing part Packaging method of bags with the air bag, characterized in that encapsulating the gas. The packaging method for a bag with an air bag according to claim 21, wherein the bag with an air bag is a bottom gusset type self-supporting bag. In the bag with an air bag, a non-fused portion is formed from the vicinity of the upper end of the side edge portion, and in the air introducing portion forming step, the notch or hole is formed in the vicinity of the upper end of the non-fused portion, The packaging method for a bag with an air bag according to any one of claims 18 to 22, wherein in the sealing step, the bag mouth is fused and sealed including the notch or the hole. The airbag-attached bag has a non-fused portion formed near the upper end of the side edge portion, and in the air introducing portion forming step, the notch or hole is formed near the upper end of the non-fused portion, The filling step is placed after the content filling step, and in the airbag filling step, the fusion sealing of the bag mouth is performed at the position where the cut or hole is removed at the same time when the vicinity of the cut or hole is fusion sealed. The bag filling method according to any one of claims 18 to 22, wherein the airbag filling step also serves as a bag mouth sealing step. The airbag-attached bag has a non-fused portion formed near the upper end of the side edge portion, and in the air introducing portion forming step, the notch or hole is formed near the upper end of the non-fused portion, The filling step is placed after the content filling step, and in the airbag filling step, the fusion sealing of the bag mouth is performed at the position where the cut or hole is removed at the same time when the vicinity of the cut or hole is fusion sealed. 23. The bag packaging method for an air bag according to claim 18, further comprising: fusing and sealing the bag mouth including the notch or the hole in the bag mouth sealing step. 26. The packaging method for a bag with an air bag according to claim 25, wherein in the air bag filling step, the fusion sealing of the bag mouth is performed by a narrow line seal. Holding the spout with a bifurcated spout holding member inserted between the upper and lower flanges formed on the spout, and continuously or intermittently transferring the spouted bag, and filling the contents during the transfer process And a packaging method for a bag with a spout that sequentially performs each packaging process such as capping to a spout mouth, and as a bag of the bag with a spout, it extends in the vertical direction between laminated films constituting the front and back surfaces at the side edge of the bag. An airbag in which a non-fused portion is formed, the non-fused portion has a closed contour, and a cut or a hole for communicating the inside of the non-fused portion with the outside of the bag is formed in the laminated film of the non-fused portion. An airbag filling process is placed in a series of packaging processes using a bag with a bag, and in the airbag filling process, gas is passed through the notches or holes formed in the bag with the airbag. Bubbled, then the incision or hole packaging method of spout and bag with, characterized in that near the in sealed fusion sealing to enclose a gas in the non-fused portion of the. The method for packaging a spout and a bag with an air bag according to claim 27, wherein the bag with an air bag is a self-supporting bag of a bottom gusset type. The airbag-attached bag has a lower end of the non-fused portion formed on the side edge portion extending further downward, and the non-fused also between the laminated film constituting the front and back surfaces and the laminated film constituting the bottom surface. 29. The packaging method for a spout and a bag with an air bag according to claim 28, wherein the portion is formed. Holding the spout with a bifurcated spout holding member inserted between the upper and lower flanges formed on the spout, and continuously or intermittently transferring the spouted bag, and filling the contents during the transfer process And a method for packaging a bag with a spout that sequentially performs each packaging step such as capping to a spout mouth, as a bag of the bag with a spout, in the vertical direction inside at least one of the laminated films constituting the front and back surfaces of the bag A non-fused portion extending in the direction is formed, the non-fused portion has a closed contour, and a cut or a hole communicating the inside of the non-fused portion with the outside of the bag is formed in the laminated film of the non-fused portion. Using a bag with an air bag, an air bag filling process is placed in a series of packaging processes, and in the air bag filling process, through a notch or a hole formed in the bag with an air bag Blowing body to the unfused portion, then the incision or hole packaging method of spout and bag with, characterized in that near the in sealed fusion sealing to enclose a gas in the non-fused portion of the. 31. The packaging method for a spout and a bag with an air bag according to claim 30, wherein the bag with an air bag is a bottom gusset type self-supporting bag. The said bag with an airbag has a non-fusion | fusion part formed from the upper end vicinity of a side edge part, and the said notch | incision or hole is formed in the vicinity of the upper end of the said non-fusion | fused part. 31. Packaging method for spout and bag with airbag described in 31. Holding the spout with a bifurcated spout holding member inserted between the upper and lower flanges formed on the spout, and continuously or intermittently transferring the spouted bag, and filling the contents during the transfer process And a method for packaging a bag with a spout that sequentially performs each packaging step such as capping to a spout mouth, etc., as a bag for the bag with a spout. A bag with an airbag having a closed portion formed and a closed contour of the non-fused portion is used, and an air introducing portion forming step and an air bag filling step are placed in a series of packaging steps to form the air introducing portion. In the step, a notch or hole for communicating the inside of the non-fused portion with the outside of the bag is formed in the laminated film of the non-fused portion, and in the airbag filling step, air is passed through the notch or hole. The unfused blown into portion, then the incision or hole packaging method of spout and bag with, characterized by encapsulating a gas to the non-fused portion sealed fusion sealing the vicinity of the. 34. The method of packaging a spout and a bag with an air bag according to claim 33, wherein the bag with an air bag is a bottom gusset type self-supporting bag. The airbag-attached bag has a lower end of the non-fused portion formed on the side edge portion extending further downward, and the non-fused also between the laminated film constituting the front and back surfaces and the laminated film constituting the bottom surface. 35. The packaging method for a spout and a bag with an air bag according to claim 34, wherein the portion is formed. Holding the spout with a bifurcated spout holding member inserted between the upper and lower flanges formed on the spout, and continuously or intermittently transferring the spouted bag, and filling the contents during the transfer process And a method of packaging a spout-equipped bag that sequentially performs each packaging step such as capping to a spout mouth, and as a bag of the spout-equipped bag, extends vertically in at least one laminated film constituting the front and back surfaces. Using a bag with an air bag having a non-fused portion formed and having a closed contour, the air introduction portion forming step and the air bag filling step are placed in a series of packaging steps, and the air introduction In the part forming step, a cut or hole for communicating the inside of the non-fused part and the outside of the bag is formed in the laminated film of the non-fused part, and in the airbag filling step, the cut Or packaging a spout and a bag with an air bag, wherein gas is blown into the non-fused portion through a hole, and then the gas is sealed in the non-fused portion by fusing and sealing the vicinity of the notch or hole. Method. The packaging method for a spout and a bag with an air bag according to claim 36, wherein the bag with an air bag is a bottom gusset type self-supporting bag. In the bag with an airbag, a non-fused portion is formed from the vicinity of the upper end of a side edge portion, and in the air introduction portion forming step, the notch or the hole is formed near the upper end of the non-fused portion. The packaging method of the bag with a spout and an airbag described in Claims 33-37. The spout is held by a bifurcated spout holding member inserted between upper and lower flanges formed on the spout, and the spout is transferred continuously or intermittently. In a packaging method for a spout-equipped bag that sequentially performs a packaging process such as temporary sealing of mouth and spout, main sealing of bag mouth and spout, filling of contents and capping to spout mouth, etc. A non-fused portion extending in the vertical direction is formed between the laminated films constituting the back surface, the non-fused portion has a closed contour, and the notch or the hole communicating the inside of the non-fused portion with the outside of the bag is the Using a bag with an air bag formed on the laminated film of the non-fused portion, an air bag filling process was placed as a process after temporary sealing, and in the air bag filling process, the bag with an air bag was formed. A spout and a bag with an airbag, wherein gas is blown into the non-fused portion through a hole or a hole, and then the gas is sealed in the non-fused portion by fusing and sealing the vicinity of the notch or hole. Packaging method. 40. The packaging method for a spout and a bag with an air bag according to claim 39, wherein the bag with an air bag is a self-standing bag of a bottom gusset type. The airbag-attached bag has a lower end of the non-fused portion formed on the side edge portion extending further downward, and the non-fused also between the laminated film constituting the front and back surfaces and the laminated film constituting the bottom surface. 41. The packaging method for a spout and a bag with an air bag according to claim 40, wherein the portion is formed. The spout is held by a bifurcated spout holding member inserted between upper and lower flanges formed on the spout, and the spout is transferred continuously or intermittently. In the packaging method for a spout-equipped bag that sequentially performs each packaging step such as temporary sealing of the mouth and spout, main sealing of the bag mouth and spout, filling of contents and capping to the spout mouth, A non-fused portion extending in the vertical direction is formed inside at least one of the laminated films to be formed, the non-fused portion has a closed contour, and the notch that allows the inside of the non-fused portion to communicate with the outside of the bag Alternatively, using a bag with an air bag in which a hole is formed in the laminated film of the non-fused portion, an air bag filling step is placed as a step after temporary sealing, and in the air bag filling step, the air bag A gas is blown into the non-fused portion through a notch or hole formed in a bag with a groove, and then the gas is sealed in the non-fused portion by fusing and sealing the vicinity of the notch or hole. Packaging method for spouts and bags with airbags. 43. The method of packaging a spout and a bag with an air bag according to claim 42, wherein the bag with an air bag is a bottom gusset type self-supporting bag. The spout is held by a bifurcated spout holding member inserted between upper and lower flanges formed on the spout, and the spout is transferred continuously or intermittently. In a packaging method for a spout-equipped bag that sequentially performs a packaging process such as temporary sealing of mouth and spout, main sealing of bag mouth and spout, filling of contents and capping to spout mouth, etc. A non-fused portion extending in the up-down direction is formed between the laminated films constituting the back surface, and the bag with the airbag having the contour closed by the non-fused portion is used, and an air introduction portion forming step as a step after temporary sealing An air bag filling step, and in the air introduction portion forming step, a notch or a hole for communicating the inside of the non-fused portion and the outside of the bag is formed in the laminated film of the non-fused portion, and the airbag In the filling step, a spout characterized in that gas is blown into the non-fused portion through the notch or hole, and then the gas is sealed in the non-fused portion by fusing and sealing the vicinity of the notch or hole. Packaging method for bags with airbags. 45. The packaging method for a spout and a bag with an air bag according to claim 44, wherein the bag with an air bag is a self-supporting bag of a bottom gusset type. The airbag-attached bag has a lower end of the non-fused portion formed on the side edge portion extending further downward, and the non-fused also between the laminated film constituting the front and back surfaces and the laminated film constituting the bottom surface. 46. The packaging method for a bag with an air bag according to claim 45, wherein a portion is formed. The spout is held by a bifurcated spout holding member inserted between upper and lower flanges formed on the spout, and the spout is transferred continuously or intermittently. In the packaging method for a spout-equipped bag that sequentially performs each packaging process such as temporary sealing of the mouth and spout, main sealing of the bag mouth and spout, filling of contents and capping to the spout mouth, the front and back surfaces are configured as the bag. A process after provisional sealing using a bottom gusset type airbag-attached bag in which a non-fused portion extending in the vertical direction is formed inside at least one laminated film of the laminated film, and the non-fused portion has a closed contour The air introduction portion forming step and the air bag filling step are arranged, and in the air introduction portion forming step, a notch or a hole for communicating the inside of the non-fused portion and the outside of the bag is formed in the product of the non-fused portion. Formed into a film, and in the airbag filling step, gas is blown into the non-fused portion through the notch or hole, and then the gas is sealed in the non-fused portion by fusing and sealing the vicinity of the notch or hole. A packaging method for a spout and a bag with an air bag. The method of packaging a spout and a bag with an air bag according to claim 47, wherein the bag with an air bag is a self-supporting bag of a bottom gusset type. Using the bag with an airbag in which the non-fused portion is formed from the vicinity of the upper end of the side edge portion, and forming the notch or hole in the vicinity of the upper end of the non-fused portion in the air introducing portion forming step. The packaging method of the bag with a spout and an airbag described in any one of Claims 33-37 and 44-48.

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