JP2007076696A - Spout, packaging bag with spout and packaging body with spout - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spout capable of providing the spout mass-producible at an extremely low cost, and using a heat sealer with a shape of a plane heat sealing face as a pair of the heat sealers for fitting this spout on a packaging bag, and to provide a packaging bag with the spout, and a packaging body with the spout. <P>SOLUTION: The spout is a hollow-shaped molded body made of a synthetic resin, and has a connecting part 11 to a bag body as a connecting part to the inner face of the bag main body on the outer face. This connecting part 11 to the bag body has a length approximately coinciding with the sealing width of heat seal, and heal sealing properties for connection seal to the bag body. In addition, the hollow-shaped part corresponding to the connecting part to the bag body has a flexibility to make a hollow part to a flat condition when it is heat seal-connected to the inner face of the bag body, and a restoring property for a passage for restoring the passage after flat heat sealing. Furthermore, both end parts of the section of the passage in the bag flat direction has a shape of the corner of the eye, and has an upper end opening part and a lower end opening part. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a spout that is an outlet of a fluid that is an article to be packaged contained in a bag body, a packaging bag with a spout, and a packaging body with a spout.

The conventional spout is made of hard plastic, for example, has a hexagonal flange, this flange is welded to the upper end opening of the bag body, and there is a male thread on the outer surface of the small-diameter cylindrical part protruding from the flange. The cap is screwed so that it can be broken by twisting (see, for example, Patent Document 1).
JP 2005-162324 A

Conventional spouts are complex in shape and expensive.
In addition, the conventional spout requires a pair of heat sealers with a highly precise shape system in order to weld so that no pinhole is generated around the flange, and spout welding to weld the flange to the upper end opening of the bag body. The device is expensive.
An object of the present invention is to provide a spout that can be mass-produced at a very low cost, and a heat sealer having a shape in which the heat seal surface is substantially flat can be used as a pair of heat sealers for attaching the spout to a packaging bag. It is providing a spout, a packaging bag with a spout, and a packaging body with a spout.

  In order to achieve the above object, a spout of the present invention is a hollow molded body made of synthetic resin, and has an outer surface having a bag body connecting portion that is a connecting portion with the inner surface of the bag body. The bag body connecting portion has a length that substantially matches the seal width of the heat seal, and has a heat sealing property for connection sealing with the bag body, and further has a hollow corresponding to the bag body connecting portion. The shape portion has flexibility that allows the hollow portion to be flat when the heat seal is connected to the inner surface of the bag body, and has a passage restoration property that restores the passage after the flat heat seal. Both end portions are thin-walled and have an upper end opening and a lower end opening.

The spout of the present invention has a thin shape at both ends in the flat direction of the bag body in the passage cross section of the bag body connection portion. The outer surface of the bag body connecting portion and the inner surface of the outer peripheral seal portion of the bag body can be heat-sealed by clamping with a pair of heat seal bars that are flat, and the cylindrical portion of the bag body connecting portion is flat. It does not remain, but restores the passage and retains the function as a spout. The thin shape is preferably an eye corner shape. The corner shape is a shape in which the thin part extends toward the edge after the upper meat part and the lower meat part are combined together, and this thin part extends to the thickness of the film. However, it may extend with a thickness of several hundred microns called a so-called sheet, and the thickness gradually decreases so that the base is 2 mm and the edge is several tens of microns, for example. It may extend to.
Therefore, the spout of the present invention can provide a spout that can be mass-produced at an extremely low cost, and a heat sealer having a substantially planar heat seal surface can be used as a pair of heat sealers for attaching the spout to a packaging bag. .

  Moreover, about the spout of the said structure, when the upper part from the said bag main body connection part is a small diameter cylinder part which has an upper end opening part, it is appropriate not by a large flow volume by determining a small aperture appropriately according to a use. An opening that provides a flow rate can be provided.

  About the spout having the above-described configuration, a portion above the connecting portion to the bag main body is a small-diameter cylindrical portion, and a male screw portion is formed on the upper outer surface portion of the small-diameter cylindrical portion, and a screw cap is screwed onto the male screw portion. Then, an opening of an appropriate size can be given to the packaging bag, and the resealability can be given.

  Moreover, about the spout of the said structure, it can be set as the structure provided with the cap which fits on the said small diameter cylinder part straightly and obstruct | occludes.

  Further, the spout having the above-described configuration has a shape in which a lower portion is closed from the connection portion to the bag body and a small hole corresponding to the lower end opening is formed in the lower portion. By adjusting the size, the flow rate of the liquid flowing through the spout can be adjusted.

  In addition, for the spout having the above configuration, the outer surface from the upper end opening to the lower end opening is occupied by the connecting portion to the bag main body, and the length from the upper end opening to the lower end opening is the seal width of the heat seal that is the attachment portion of the bag main body. If the length is substantially the same as the length, it is suitable as a spout provided at the corner of the packing bag for refilling powder or liquid.

  Another spout of the present invention is a synthetic resin hollow-shaped molded body, and has an outer surface having a bag body connecting portion that is a connecting portion with the inner surface of the bag body. The heat seal has a length substantially equal to the seal width of the heat seal, and has a heat seal property for connection sealing with the bag body, and the hollow portion corresponding to the bag body connection portion is a bag It has the flexibility that the hollow part is flattened when connected to the inner surface of the main body by heat sealing, and the passage restoration property that restores the passage after flat heat sealing. The upper part of the connecting part to the bag main body is closed as a small-diameter cylindrical part, and has a lower end opening part below the connecting part of the bag main body. Since this spout does not have an upper end opening portion, the upper portion of the small-diameter cylindrical portion is cut open with a scissors or a cutter. In this case as well, the thin-walled shape is preferably an eye corner shape.

  Furthermore, the other spout of the present invention has an in-bag insertion portion extending downward from the anti-bag main body connection portion with respect to the spout having the above-described configuration, with or without an upper end opening. Is a length that hangs down to the inner bottom portion of the bag body to be attached, and further, an air vent hole is provided in the upper portion of the insertion portion in the bag. Since this spout is long enough to hang down to the bottom of the bag when attached to the bag body, it can be used as a mouthpiece, and even if the bag receives pressure when the bag body is filled with drinking liquid and the inlet is sealed, The air inside the spout enters the spout passage from the air vent hole and flows out from the upper opening, and even if the drinking liquid in the bag body enters the spout passage and rises, it escapes from the air vent hole and returns to the bag main body and flows out from the upper opening. There is nothing.

There are four forms of the spouted packaging bag of the present invention.
The first form consists of a bag body and a spout, and the bag body has a double seal part that forms a sealed small space between the heat seal part along the outer edge, and the other part has a cover. A spout is provided with an opening for accommodating a package, and the spout has a spout main body connecting portion sandwiched between the double seal portions and sealed and connected, and the spout The spout-equipped packaging body is characterized by being filled with a fluid from the opening portion of the attached packaging bag and heat-sealing the opening portion.

  The second form consists of a bag main body and a spout, the bag main body is provided with a double seal planned part that forms a sealed small space in an opening for accommodating an object to be packaged, A spout-equipped packaging bag, wherein a part of one side surface of the bag main body connecting portion is temporarily connected to one of the inner seal planned portions of the double seal planned portions of the bag main body, and The fluid is filled from the opening portion of the packaging bag with the spout and the opening portion is heat-sealed, and the spout-to-bag main body connecting portion is the inner sealing portion of the double sealing portion of the bag body. It is a package with a spout characterized by being heat-sealed.

  The third form consists of a bag body and a spout, and the spout is that a part of one side of the bag body connection part is temporarily connected to one edge of the opening of the bag body. Since the spout of the spout with the spout and the spout of the spout with the spout are provided in the opening, the fluid is filled from the opening and the opening is surrounded around the connection portion of the spout to the bag body. A package with a spout, wherein the outer end of the spout is closed.

The fourth form consists of a bag body and a spout, and the spout is connected to the heat seal part at the upper part of the bag body, and the bag body does not overlap the spout. A spout-equipped packaging bag having an opening for filling the fluid at the position, and the outer end of the spout of the spout-equipped packaging bag is closed to fill the fluid from the opening. A spout-equipped package, wherein the opening is heat sealed.
Thus, the spout-equipped packaging body of the present invention is characterized in that the spout-equipped packaging bag configured as described above is filled with a fluid and heat-sealed.

ADVANTAGE OF THE INVENTION According to this invention, the spout which can be mass-produced at a very low cost can be provided.
According to the present invention, since both ends in the flat direction of the bag body in the cross section of the passage section of the bag-to-bag body connection portion are in the corners of the eyes, the heat seal surface is a pair of heat seal bars that are substantially flat when attached to the packaging bag Heat sealing can be performed so that leakage does not occur due to clamping, and after sealing, the passage is restored, and the fluid that is the package object can flow out smoothly when opened.

Embodiments of the present invention will be described below with reference to the drawings.
[Embodiment 1 of spout]
FIG. 1A is a front view of the spout of the first embodiment, FIG. 1B is a side view of the spout, and FIG. 1C is a cross-sectional view taken along the line Ic-Ic in FIG.

  The spout 10A is a hollow molded body made of a synthetic resin, and has an anti-bag main body connection portion 11 that is a connection portion with the inner surface of the bag main body on the outer surface. The bag main body connecting portion 11 has a length that substantially matches the seal width of the heat seal, and has a heat seal property for connection sealing with the bag main body.

The spout 10A has a flexibility in which the hollow portion corresponding to the bag body connection portion 11 is flat when the heat seal connection between the inner surface of the bag body and the inner surface of the bag body is achieved, and the flat heat seal It has a passage restoring property that restores the passage later, and both end portions 11a in the bag flat direction of the passage cross section are in the shape of the corner of the eye.
As described above, the meaning of having flexibility and the shape of the corners of the eyes is that the spout 10A can be satisfactorily heat-sealed to the bag body using a pair of heat sealers having a flat heat seal surface. It is to make it. Further, as described above, the significance of having the passage restoring property is to secure the exit passage.

This spout 10A has a flat triangular tube portion 14 that gradually decreases upward from the bag-to-bag main body connecting portion 11, has a small diameter tube portion 15 following the flat triangular tube portion 14, and has an upper end opening 12 at the upper end. Further, a lower end opening 13 is provided at the lower end of the bag-body connecting portion 11. A male screw 16 is provided on the outer surface of the small-diameter cylindrical portion 15, and a screw cap 20 is screwed onto the male screw 16 to close the upper end opening 12.
The upper end opening 12 is, for example, a small circular opening having a diameter of 2 mm to 3 mm, and the lower end opening 13 is an opening having a mesh shape having a width of 7 mm to 12 mm, for example.

When the spout 10A is heat-sealed by closely contacting the flat body connecting portion 11 (outer surface) to the inner surface of the bag and flattening it, the inner surface is not heat-sealed.
The bag body connecting portion 11 occupies a range of a dimension L in the length direction of the flat outer diameter portion of the lower half of the outer surface of the spout.

  The characteristics of the spout 10A with respect to the bag body connecting portion 11 are also common to the spout to bag body connecting portion of other embodiments described below.

  This spout 10A is a spout of a hollow synthetic resin molded body formed by blow molding, injection molding, or profile extrusion molding.

  The fact that the inner surface of the spout is not heat sealed is not limited to the fact that the inner surface of the spout is made of a synthetic resin that does not have heat sealability. Even if the inner surface is made of a synthetic resin having heat sealability, a thick sheet that does not transfer heat to the inner surface at the normal heat seal time and heat seal temperature when connecting the spout and the bag body, for example, 100 microns If it is formed in a thick sheet shape of ~ 300 microns, heat sealing is not required.

About the laminated structure of the resin material for making the bag main body connection part (outer surface part) 11 retain heat sealability, the width of the material adopted in connection with this spout manufacturing method is slightly different.
When the spout is molded by injection molding or profile extrusion molding, it can be molded using polypropylene resin (PP) or polyethylene resin (LDPE, LLDPE, HDPE).
In addition, when molding by blow molding, it can be molded using polypropylene resin (PP), polyethylene resin (LDPE, LLDPE, HDPE), and also laminated such as PP / EVOH / PP and LDPE / EVOH / LDPE. Further, the inner surface of the spout may not be polypropylene resin (PP) or polyethylene resin (LDPE, LLDPE, HDPE). Furthermore, when forming by blow molding, a laminated structure of PP / EVOH / PP or LDPE / EVOH / LDPE provides a spout having a barrier property and has an advantage that it can be manufactured at a lower cost than other manufacturing methods.
As described above, the heat sealing is not performed when the inner surface of the spout is overlapped and flattened with the bag body for connection sealing, and the spouts of other embodiments described below are the same.

[How to install spout 10A]
FIG. 2 shows a state where the spout 10A is temporarily attached to the bag body 30.
FIG. 2 shows a case where the spout 10A is attached at the center of the width of the opening for filling the fluid in the bag body 30, and the opening cannot be closed before filling the fluid. At the stage of the bag making process using the apparatus, the spout 10A is temporarily attached to the bag body 30 and is not permanently attached. The tack welding is a small area welding or a partial welding. So-called point heat sealing is applied (hereinafter the same).

Temporary attachment between the spout 10A and the bag body 30 shown in FIG. 2 is performed in a bag making apparatus.
More specifically, the two bag body films that are transported in an overlapping manner are separated from each other, the spout 10A is supplied onto the inner surface of the lower bag body film from the orthogonal direction, and the spout 10A is pressed and pointed from below. The heat sealer is lifted, and the spout 10A is temporarily pressed in correspondence with the vicinity of the center portion of the spout 10A to the bag main body connection portion 11 to temporarily attach the spout 10A to the lower bag main body film (point seal s is applied). is there.
When the bag main body spout is attached to one corner of the bag main body so that the opening for filling the fluid does not overlap the spout attachment position, the spout can be attached to the bag main body.

[Method of packaging fluids]
FIG. 3 shows a process of filling the temporarily attached packaging bag with spout shown in FIG. 2 with a fluid to form a packaging body with spout.

  First, as shown in FIG. 3 (a), the left and right sides of the packaging bag 30 to which the spout 10A is temporarily attached are gripped and transported by a pair of hands H, H, and the upper portion of the front and rear portions at a predetermined station. And opening the opening of the packaging bag 30 by narrowing the distance between the pair of hands H, H holding the left and right side portions of the packaging bag 30, and suctioning with a pair of vacuum pads VP, VP; The filling pipe R is inserted into the opening, and the fluid to be packaged is filled into the packaging bag through the filling pipe R.

  In the next station, as shown in FIG. 3B, the opening of the bag body 30 is substantially closed by returning the distance between the pair of hands H, H to the original distance.

  Next, as shown in FIG. 3 (c), when the portion where the bag body connecting portion 11 of the bag body 40 is sandwiched with a pair of heat seal bars HB, HB having a flat heat seal surface is pressed. As shown in FIG. 1 (c), since both end portions 11a in the flat direction of the bag body of the passage cross section of the bag-body connecting portion 11 are in the shape of the corner of the eye, the bag-body connecting portion 11 has a width center portion on the front and rear surfaces. The flattening starts and the flat spreads in the both end directions, the entire outer surface of the anti-bag main body connecting portion 11 is flattened, and heat sealing is applied to the inner surface of the packaging bag 30.

  As shown in FIG. 1 (c), the significance of the cross-section of both end portions 11a of the bag-body connecting portion 11 being an eye corner shape is that a pair of heat-sealing surfaces are flat as shown in FIG. 3 (c). When heat sealing is performed with the heat sealing bars HB and HB, flattening starts from the center of the bulge of the bag-to-bag main body connecting part 11 and the flattenes progress with the corner of the eye as the end, and is flattened over the entire length and heat sealed. It is possible to prevent the occurrence of a defective seal portion that becomes a pinhole in the corner of the eye corner.

  In addition, the spout 10A has a shape restoring property. This is closely related to the fact that even if the spout 10A is flattened and heat sealed, the inner surface of the spout 10A is not heat sealed. This is because, for example, if the bag body connecting portion 11 is pressed and flattened with heat seal bars HB, HB heated to 150 ° C., heat is transferred toward the inner surface of the spout 10A, but the spout 10A is thick. Moreover, since the heat transfer rate is not high, it takes a considerable amount of time for the inner surface to reach the heat seal temperature (for example, 130 ° C.). Therefore, the normal heat seal time and heat seal allocated in the packaging cycle are required. Temperature is guaranteed by heat transfer not reaching the heat seal temperature (eg, 130 ° C.) of the inner surface of the spout 10A.

  Therefore, after the heat seal between the outer surface of the bag body connecting portion 11 and the inner surface of the packaging bag 30 is performed, as shown in FIG. 3C, when the heat seal bars HB and HB are separated, Since the connecting portion 11 is thick and has shape restoring properties due to waist strength and elasticity, the connecting portion 11 restores the passage and retains the function as a spout as shown in FIG.

Since the spout 10A of this embodiment includes the small-diameter cylindrical portion 15 on the upper side of the bag-to-bag main body connection portion 11, an upper end opening portion having an appropriate size can be provided. There is no risk of clogging as a narrowed passage of the bag.
Moreover, since this spout 10A can be resealed by screwing the screw cap 20 onto the male screw 16, it can be applied to a packaging bag that needs to be resealed.

  The temporarily attached packaging bag with a spout of this embodiment is to attach the spout in the process of making the bag body with the bag making machine, and after making the bag body with the bag making machine, hang the bag body on the spout attaching device. It can be made either by attaching a spout.

Subsequently, another embodiment of the spout will be described.
In the following embodiments, the same components as those in the first embodiment are denoted by the same reference numerals, and the description will focus on the main parts, and the same or equivalent components as those in the first embodiment will be abbreviated as the first embodiment. Since they have the same effect, they will be omitted to avoid duplication.

[Embodiment 2 of spout]
4A is a front view of the spout of the second embodiment, FIG. 4B is a side view of the spout, and FIG. 4C is a cross-sectional view taken along line IVc-IVc in FIG.

The spout 10B is different from the spout 10A shown in the first embodiment in the lower portion of the bag main body connecting portion 11 bonded to the bag inner surface.
That is, the spout 10A has a shape in which a lower portion 17 is closed from the bag-body connecting portion 11 and a small hole 18 is formed on one side or both sides, and the small hole 18 is formed in the spout shown in the first embodiment. This corresponds to the lower end opening 13 of 10A.
In addition to the lower end opening 13 being squeezed to a small diameter, the spout 10B is also squeezed as a small hole 18, so that the discharge flow rate of the fluid can be made small. Suitable for spouts of soy sauce sachets.

[Embodiment 3 of spout]
Fig.5 (a) is a front view of the spout of Embodiment 4, (b) is a side view of the spout, and (c) is a Vc-Vc cross-sectional view in (a).

This spout 10C is different from the spout 10A shown in the first embodiment in that there is no male screw in the small diameter cylindrical portion and there is no opening at the upper end of the small diameter cylindrical portion.
The spout 10C is a hollow molded body made of a synthetic resin, and has an anti-bag main body connecting portion 11 that is a connecting portion with the inner surface of the bag main body on the outer surface. The bag main body connecting portion 11 has a length that substantially matches the seal width of the heat seal, and has a heat seal property for connection sealing with the bag main body. Furthermore, the hollow-shaped portion having the bag-to-bag main body connecting portion 11 has flexibility that allows the hollow portion to be flat when the heat seal is connected to the inner surface of the bag main body, and passage resilience that restores the passage after flat heat sealing. Furthermore, both end portions 11a in the bag flat direction of the passage section are in the shape of the corners of the eyes.
The spout 10 </ b> C is closed with a small diameter cylindrical portion 15 at an upper portion from the bag-body connecting portion 11 and has a lower end opening 13 below the bag-connecting body connecting portion 11.
Since this spout 10C does not have an upper end opening portion, the small-diameter cylindrical portion is cut and opened with a scissors or a cutter.

[Embodiment 4 of spout]
6A is a front view of the spout of the third embodiment, FIG. 6B is a side view of the spout, and FIG. 6C is a cross-sectional view taken along line VIc-VIc in FIG.

The spout 10D is different from the spout 10A shown in the first embodiment in that there is no upper portion of the spout 10D that is bonded to the bag inner surface.
That is, in the spout 10D, the bag body connecting portion 11 occupies the outer surface from the upper end opening 12 to the lower end opening 13, and the length h from the upper end opening 12 to the lower end opening 13 is the height of the bag body. It is the structure made into the length (it includes a slightly large length) substantially corresponding to the seal width L of the heat seal which is an attachment part.

  Since the spout 10D has a function of securing a large outlet at the seal portion of the bag, the spout 10D is applied to a spout-equipped packaging bag and a spout-equipped packaging body for business fluids that require a large outflow amount. The method of attaching the spout 10D to the heat seal of the inner surface of the bag body is essentially not different from the first embodiment.

  Since this spout 10D cannot be plugged with respect to the upper end opening 12, the fluid accommodating space and the seal portion inside the double seal portion for forming a sealed small space outside the fluid accommodating space are provided. Attach so as to communicate with the enclosed small space.

[Embodiment 5 of spout]
FIG. 7A is a front view of the spout 10E of the fifth embodiment, FIG. 7B is a side view of the spout 10E, and FIG. 7C is a sectional view taken along line VIIc-VIIc in FIG.

This spout 10E is long and is used for beverages such as juice, and is a substitute for a straw.
The spout 10E is different from the spout 10A shown in the first embodiment in a lower portion than the bag-body connecting portion 11d.
That is, the spout 10E has an in-bag insertion portion that extends downward from the bag-body connecting portion 11, and the in-bag insertion portion has a length (x) that hangs down to the bottom of the bag body to be attached. A lower opening 12 is provided at a lower end or a lower side surface of the inner insertion portion, and an air vent hole is provided at an upper portion of the in-bag insertion portion.

[Embodiment 1 of packaging bag with spout 10A of Embodiment 1]
The packaging bag P1 with a spout shown in FIG. 8 has a configuration in which the spout 10A of Embodiment 1 is attached to a corner portion on the upper side of the bag body 101a.

  The bag body 101a of this embodiment uses a stand-pouch type bag, but may be a square bottom bag, a three-side seal bag, a four-side seal bag, a pillow bag, or other forms of bags. This is the same configuration for other spout-equipped packaging bags and spout-equipped packages.

  The spout-equipped package P1 of this embodiment has a heat seal portion 31a corresponding to two perpendicular sides of a right triangle and an inward heat corresponding to a hypotenuse at a corner portion on the upper side of the stand pouch type bag body 101a. A right-angled triangular closed small space 33a is formed with the seal portion (double seal portion) 32a, and the opening 34a for accommodating the fluid (packaged material) does not overlap the spout 10A mounting location. Prepare for the part. As the “other portion”, the opening 34 a is provided in the upper portion of the bag in this embodiment, but the upper portion of the bag may be heat sealed and provided in the side portion of the bag body. Further, when the bag is a three-side seal bag, a four-side seal bag, or a pillow bag, an opening may be provided at the bottom.

  The spout 10A is sealed and connected to the bag main body connecting portion 11 between the inner heat seal portions 32a of the bag main body 101a. The screw cap 20 screwed into the male screw 16 of the small diameter cylindrical portion 15 of the spout 10A is accommodated in the sealed small space 34a.

  The opening 34a of the spout-equipped packaging bag P1 is opened, the fluid is filled from here, and a heat seal 35a is applied to the opening to provide a spout-equipped packaging.

  Since this spout-equipped package P1 uses a stand-pouch type bag for the bag body 101a, it becomes a self-supporting package with a spout.

  The spout-equipped package P1 opens the sealed small space 33a along the half cut 37a from the notch 36a along the inner heat seal portion 32a, and the screw cap 20 is removed. Can be spilled.

  The spout 10A has a large diameter and does not flatten in the bag-to-bag main body connecting portion 11, so that the fluid can easily flow therethrough, and if the small diameter is reduced so that the small diameter cylindrical portion 15 has a required flow rate, the flow rate according to the intended application Will be equipped with an outlet.

[Embodiment 2 of packaging bag with spout 10A of Embodiment 1]
The packaging bag P2 with a spout shown in FIG. 9 forms a sealed small space 33b having a bag width by the heat seal planned portion 31b and the inner heat seal planned portion 32b at the upper end edge of the stand pouch type bag body 101b. A part of one side surface of the spout 10A to the bag main body connecting portion 11b with the screw cap 20 is temporarily connected (heat-welded) to the center of the bag width of the inner heat seal scheduled portion 32b on the inner surface of the bag.

  In the spout 10A, the bag main body connecting portion 11b is sandwiched between the inner heat sealing scheduled portions 32b of the bag main body 101b and sealed. The screw cap 20 screwed into the spout 10A is accommodated in the sealed small space 33b.

  Then, widen the upper end opening, insert the filling pipe deeper than the spout 10A temporarily attached to the center of the inner width of one bag, fill the fluid through the filling pipe, pull out the filling pipe, A package with a spout is obtained by applying the heat seal 35b to each part by combining the heat seal planned part 32b and the heat seal planned part 31b at the upper edge.

[Third Embodiment of Packaging Bag with Spout 10A of First Embodiment]
FIG. 10 shows not a packaging bag with a spout but a packaging body P3 with a spout. The spout-equipped package P3 is first formed as a spout-equipped packaging bag P2 as shown in FIG. 9, filled with a fluid, and an inner heat-seal planned portion and a heat-seal planned portion at the upper edge. In addition, the same structure as the spout-equipped package shown in FIG. 9 is applied to each part by heat-sealing, and further, both sides of the screw cap 20 of the spout 10A are heat-sealed to form a constricted sealed space 33c. Cut the excess on both sides.
The spout-equipped package P3 opens the constricted sealed space 33c along the half cut 37c from the notch 36c, and the screw cap 20 is removed to allow the fluid (packaged material) in the bag to flow out.
In addition, the package with a spout which is not provided with the screw cap 20 as a modification with respect to the package P3 with a spout shown in FIG. Also, an opening for filling the fluid may be provided on the side of the bag body, and when the bag is a three-side sealed bag, a four-side sealed bag, or a pillow bag, an opening may be provided at the bottom. good.

[Embodiment 4 of packaging bag with spout 10A of Embodiment 1]
The spout-equipped packaging bag P4 shown in FIG. 11 temporarily attaches a part of one side surface of the spout 10A to the bag body connecting portion 11 in the center of the bag width of one bag inner surface of the upper end edge of the stand pouch type bag body 101d. A spout-equipped packaging bag that is connected (heat-welded).
To make a package with a spout, in order to avoid the mischief of removing the screw cap 20 as a one-time opening, applying the heat seal 35d to the upper end edge with a large opening at the top opening and filling with fluid. The cover film 38d is covered with the screw cap 20 of the spout 10A and half-folded, and both end edges are point-connected (heat-welded) to the upper end edge of the packaging bag.
This spout-equipped packaging bag P4 may also be provided with an opening for filling the fluid in the side portion of the bag body, and when the bag is a three-side seal bag, a four-side seal bag, or a pillow bag, An opening may be provided.

[Embodiment 1 of packaging bag with spout 10B of Embodiment 2]
The spout-equipped packaging bag P5 shown in FIG. 12 has a configuration in which the spout 10B of the second embodiment is attached to the spout-equipped packaging bag P1 shown in FIG. 8 in place of the spout 10A of the first embodiment. There is no difference in other configurations.

[Embodiment 2 of packaging bag with spout 10B of Embodiment 2]
The spout-equipped packaging bag P6 shown in FIG. 13 has a configuration in which the spout 10B of the second embodiment is attached to the spout-equipped packaging bag P2 shown in FIG. 9 instead of the spout 10A of the first embodiment. There is no difference in other configurations.

[Embodiment 3 of a packaging bag with spout 10B of Embodiment 2]
The spout-equipped packaging bag P7 shown in FIG. 14 has a configuration in which the spout 10B of the second embodiment is attached to the spout-equipped packaging bag P3 shown in FIG. 10 instead of the spout 10A of the first embodiment. There is no difference in other configurations.

[Embodiment 4 of packaging bag with spout 10B of Embodiment 2]
A packaging bag P8 with a spout shown in FIG. 15 has a configuration in which the spout 10B of the second embodiment is attached to the packaging bag P4 with a spout shown in FIG. 11 instead of the spout 10A of the first embodiment. There is no difference in other configurations.

[Embodiment 1 of packaging bag with spout 10C of Embodiment 3]
A spout-equipped packaging bag P9 shown in FIG. 16 has a configuration in which the spout 10C of the second embodiment is attached to the spout-equipped packaging bag P1 shown in FIG. 8 in place of the spout 10A of the first embodiment. There is no difference in other configurations.

[Embodiment 2 of packaging bag with spout 10C of Embodiment 3]
The packaging bag P10 with a spout shown in FIG. 17 has a configuration in which the spout 10C according to the second embodiment is attached to the packaging bag P2 with a spout shown in FIG. 9 instead of the spout 10A according to the first embodiment. There is no difference in other configurations.

[Third Embodiment of Packaging Bag with Spout 10C of Third Embodiment]
A spout-equipped packaging bag P11 shown in FIG. 18 has a configuration in which the spout 10C of the second embodiment is attached to the spout-equipped packaging bag P3 shown in FIG. 10 instead of the spout 10A of the first embodiment. There is no difference in other configurations.

[Embodiment 4 of packaging bag with spout 10C of Embodiment 3]
A packaging bag P12 with a spout shown in FIG. 19 has a configuration in which the spout 10C of the second embodiment is attached to the packaging bag P4 with a spout shown in FIG. 11 instead of the spout 10A of the first embodiment. There is no difference in other configurations.

[Embodiment 1 of packaging bag with spout 10D of Embodiment 3]
A packaging bag P13 with a spout shown in FIG. 20 has a configuration in which the spout 10D of the third embodiment is attached to the packaging bag P1 with a spout shown in FIG. 8 instead of the spout 10A of the first embodiment. There is no difference in other configurations.

[Embodiment 2 of packaging bag with spout 10D of Embodiment 3]
The spout-equipped packaging bag P14 shown in FIG. 21 has a configuration in which the spout 10D of the third embodiment is attached to the spout-equipped packaging bag P3 shown in FIG. 10 instead of the spout 10A of the first embodiment. There is no difference in other configurations.

[Embodiment 1 of packaging bag with spout 10E of Embodiment 4]
The spout-equipped packaging bag P11 shown in FIG. 22 has a configuration in which the spout 10E of the second embodiment is attached to the spout-equipped packaging bag P2 shown in FIG. 9 in place of the spout 10A of the first embodiment. There is no difference in other configurations.

[Embodiment 2 of packaging bag with spout 10E of Embodiment 4]
The spout-equipped packaging bag P12 shown in FIG. 23 has a configuration in which the spout 10E of the second embodiment is attached to the spout-equipped packaging bag P3 shown in FIG. 10 instead of the spout 10A of the first embodiment. There is no difference in other configurations.

[Embodiment 3 of a packaging bag with spout 10E of Embodiment 4]
The packaging bag P13 with a spout shown in FIG. 24 has a configuration in which the spout 10E according to the second embodiment is attached to the packaging bag P4 with a spout shown in FIG. 11 in place of the spout 10A according to the first embodiment. There is no difference in other configurations.

  The present invention is not limited to the above-described embodiments and examples, and includes various design changes that do not depart from the gist.

For example, as a spout obtained by deforming the spout 10A of the first embodiment, the spout 10B of the second embodiment, and the spout 10E of the fifth embodiment, a cap having a small-diameter cylindrical portion without a male screw and fitted straight to the small-diameter cylindrical portion is provided. The structure which includes is included in the present invention. Furthermore, as a spout according to another embodiment, a configuration in which the small-diameter cylindrical portion has no male screw and does not cover the cap is included in the present invention.
Since these types of spouts are not plugged at the upper end opening of the small-diameter cylindrical portion, when forming a packaging bag with a spout and a packaging body with a spout, a double seal is applied to the bag and surrounded by this double seal. The small-diameter cylindrical portion is positioned in the sealed small space and a cap is fitted to the small-diameter cylindrical portion.

In addition, as another spout obtained by deforming the spout 10A of the first embodiment, the spout 10B of the second embodiment, and the spout 10E of the fifth embodiment, there is no male screw in the small diameter cylindrical portion, and the small diameter cylindrical portion is flattened and heat-sealed there. The configuration of applying and plugging is included in the present invention.
In this type of spout, the small-diameter cylindrical portion is completely plugged. Therefore, when a spout-equipped packaging bag and a spout-equipped package are used, the spout-equipped packaging bags P1 to P4 shown in FIGS. It can be replaced.
This type of spout cuts and opens a small-diameter cylindrical portion with a scissors or a cutter.

The packaging bag with a spout of the present invention is provided with the spout having any one of the above-mentioned configurations with respect to various bag bodies. The bag body is preferably a self-supporting bag, but is not limited thereto. In the embodiments described above, a stand pouch type bag is used, but a square bottom bag, a three-side seal bag, a four-side seal bag, a pillow bag, and other forms of bags may be used.
The spout of the present invention is flat at both ends, and may have any thickness that produces a smooth and small step when sandwiched between the front surface portion of the bag and the rear surface portion of the bag and heat-sealed. It is preferable that both end portions in the bag flat direction have a sheet-like shape.

BRIEF DESCRIPTION OF THE DRAWINGS The spout of Embodiment 1 of this invention is shown, (a) is a front view, (b) is a side view, (c) is sectional drawing along the Ic-Ic line | wire in (a). It is a figure which shows the place which carries out the temporary attachment of the spout of Embodiment 1 to a bag main body. It is a figure which shows the process of filling a fluid with the spout packaging bag which temporarily attached the spout of Embodiment 1, and making it a package with a spout. The spout of Embodiment 2 of this invention is shown, (a) is a front view, (b) is a side view, (c) is sectional drawing along the IVc-IVc line | wire in (a). The spout of Embodiment 3 of this invention is shown, (a) is a front view, (b) is a side view, (c) is sectional drawing along the Vc-Vc line | wire in (a). The spout of Embodiment 4 of this invention is shown, (a) is a front view, (b) is a side view, (c) is sectional drawing along the VIc-VIc line | wire in (a). The spout of Embodiment 5 of this invention is shown, (a) is a front view, (b) is a side view, (c) is sectional drawing along the VIIc-VIIc line in (a). It is a front view of the packaging bag with a spout and the packaging body with a spout of an embodiment of the present invention. It is a front view of the packaging bag with a spout and the packaging body with a spout of an embodiment of the present invention. It is a front view of the packaging bag with a spout and the packaging body with a spout of other embodiment of this invention. It is a front view of the packaging bag with a spout and the packaging body with a spout of other embodiment of this invention. It is a front view of the packaging bag with a spout and the packaging body with a spout of other embodiment of this invention. It is a front view of the packaging bag with a spout and the packaging body with a spout of other embodiment of this invention. It is a front view of the packaging bag with a spout and the packaging body with a spout of other embodiment of this invention. It is a front view of the packaging bag with a spout and the packaging body with a spout of other embodiment of this invention. It is a front view of the packaging bag with a spout and the packaging body with a spout of other embodiment of this invention. It is a front view of the packaging bag with a spout and the packaging body with a spout of other embodiment of this invention. It is a front view of the packaging bag with a spout and the packaging body with a spout of other embodiment of this invention. It is a front view of the packaging bag with a spout and the packaging body with a spout of other embodiment of this invention. It is a front view of the packaging bag with a spout and the packaging body with a spout of other embodiment of this invention. It is a front view of the packaging bag with a spout and the packaging body with a spout of other embodiment of this invention. It is a front view of the packaging bag with a spout and the packaging body with a spout of other embodiment of this invention. It is a front view of the packaging bag with a spout and the packaging body with a spout of other embodiment of this invention. It is a front view of the packaging bag with a spout and the packaging body with a spout of other embodiment of this invention. It is a front view of the packaging bag with a spout and the packaging body with a spout of other embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10A ... Spout, 11 ... Bag body connection part, 11a ... Both ends, 12 ... Upper end opening part, 13 ... Lower end opening part, 14 ... Flat triangular cylinder part, 15 ... Small diameter cylinder part, 16 ... Male screw, 20 ... Screw cap , 100 ... Bag body, 10B ... Spout, 17 ... Lower part than the bag body connection part, 18 ... Small hole, 10C ... Spout, 10D ... Spout, 10E ... Spout, P1-P13 ... Packing bag with spout, 30a, 30b , 30c, 30d, 30e ... bag body, 32a ... inward heat seal part (double seal part), 33a ... closed small space, 34a ... opening part, 35a ... heat seal.

Claims (13)

  This is a hollow molded body made of synthetic resin, and has a bag body connection part on the outer surface, which is a connection part with the inner surface of the bag body, and this bag body connection part substantially matches the seal width of the heat seal. And has a heat-sealing property for connection sealing with the bag body, and the hollow-shaped portion corresponding to the bag body connection portion is at the time of heat sealing connection with the inner surface of the bag body. It has the flexibility to make the hollow part flat, and the passage restoration property to restore the passage after flat heat sealing, and further, both end portions in the bag flat direction of the passage section are thin-walled, the upper end opening and the lower end opening A spout characterized by having a part.   The spout according to claim 1, wherein the upper portion of the anti-bag main body connecting portion is a small-diameter cylindrical portion having an upper end opening.   A portion above the bag main body connection portion is a small-diameter cylindrical portion, and a male screw portion is formed on an upper outer surface portion of the small-diameter cylindrical portion, and a screw cap is screwed to the male screw portion. The spout according to claim 2.   The spout according to claim 2, wherein the spout is configured to include a cap that is fitted and closed straight on the small-diameter cylindrical portion.   6. The structure according to claim 1, wherein a lower portion is closed from the connection portion to the bag main body, and a small hole corresponding to the lower end opening is formed in the lower portion. A spout according to any one of the above.   The configuration in which the bag body connecting portion occupies the outer surface from the upper end opening to the lower end opening, and the length from the upper end opening to the lower end opening is substantially equal to the seal width of the heat seal that is the attachment portion of the bag body The spout according to claim 1, wherein   This is a hollow molded body made of synthetic resin, and has a bag body connection part on the outer surface, which is a connection part with the inner surface of the bag body, and this bag body connection part substantially matches the seal width of the heat seal. And has a heat-sealing property for connection sealing with the bag body, and the hollow-shaped portion corresponding to the bag body connection portion is at the time of heat sealing connection with the inner surface of the bag body. The hollow portion is flexible so that the hollow portion is flat and has a passage restoring property that restores the passage after the flat heat seal. The spout characterized in that the upper part is closed as a small-diameter cylindrical part and has a lower end opening part below the connecting part to the bag body.   The bag has an in-bag insertion portion extending downward from the connection portion to the bag main body. The in-bag insertion portion has a length that hangs down to the inner bottom portion of the bag body to be attached. Further, an air vent hole is formed in the upper portion of the in-bag insertion portion. The spout according to any one of claims 1 to 7, further comprising: Comprising a bag body and the spout according to any one of claims 1 to 8,
The bag body has a double seal portion that forms a sealed small space between the bag and the heat seal portion along the outer edge, and has an opening for accommodating an object to be packaged in the other portion.
The spout is a packaging bag with a spout, wherein the bag main body connection portion is sandwiched between the double seal portions and sealed. Comprising a bag body and the spout according to any one of claims 1 to 8,
The bag body includes a double seal planned portion that forms a sealed small space in an opening for accommodating a packaged item,
The spout is equipped with a spout, wherein a part of one side surface of the bag main body connecting portion is temporarily connected to one of the inner seal planned portions of the double seal planned portions of the bag main body. Packaging bag. Comprising a bag body and the spout according to any one of claims 1 to 8,
The spout is a packaging bag with a spout, wherein a part of one side surface of the bag main body connecting portion is temporarily connected to one end edge of the opening of the bag main body. Comprising a bag body and the spout according to any one of claims 1 to 8,
In the spout, the bag main body connecting portion is sealed and connected to the heat seal portion at the top of the bag main body, and the bag main body has an opening for filling the fluid at a position not overlapping the spout. A packaging bag with a spout characterized by comprising.   A packaging body with a spout, wherein the packaging bag with a spout according to claim 9 is filled with a fluid and heat-sealed.

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