JP6362251B2 - Non-return pouring nozzle, packaging bag using the same, and packaging body in which a package is filled and packaged - Google Patents

Description

  The present invention relates to a non-return dispensing nozzle that exhibits a self-sealing function, a packaging bag using the nozzle, and a packaging body in which a liquid package is filled and packaged in the packaging bag. Regardless of the remaining amount of the packaged item in the bag, the packaged item is fully secured to the target position, and the required amount of the packaged item is returned by raising the packaging bag upright. The present invention proposes a technique for effectively preventing the object to be packaged from falling along or from the front end opening of the pouring passage after finishing dispensing.

Conventional liquid pouring nozzles and packaging bags using the same are disclosed in Patent Documents 1 and 2.
These liquid dispensing nozzles dispense the packaged items in the bag without taking outside air into the packaging bag, and are applied to the flexible packaging bag body that responds to the dispensing by contraction or collapse deformation. As soon as the dispensing of the packaged goods is stopped, the nozzle's dispensing passage is automatically sealed by the wetness of the liquid packaged goods, thereby reliably preventing the outside air from entering the packaging bag. The self-sealing check function is exhibited.

JP 2005-15029 A JP-A-2005-59958

  However, both of the liquid pouring nozzles disclosed in Patent Documents 1 and 2 are liquid pouring under a standing posture of a packaging bag in which the liquid pouring nozzle is joined to a soft packaging bag body by fusion or the like. Since the lower end of the outlet passage formed by tearing removal or the like at the tip of the nozzle is inclined in the direction away from the packaging bag body for the purpose of improving liquid breakage, If the package is not fully drained due to the stoppage of the dispensing of the packaged item and remains attached to the tip opening of the dispensing passage, the adhered packaged product, i.e., the liquid, moves along the tip opening. There was a risk that the packaging bag and its surroundings would be soiled by flowing down or dripping from the lower end of the opening.

  The present invention has been made paying attention to such problems, and the object of the present invention is to provide a liquid coating while maintaining the self-sealing check function of the conventional liquid dispensing nozzle. Adhering and remaining to-be-packaged items at the opening of the tip is further improved by sufficiently improving the liquid drainage at the opening of the tip of the pouring passage while sufficiently ensuring the accurate dispensing of the package to the target position. This is a non-return dispensing nozzle that eliminates the possibility of contamination of the packaging bag and its surroundings by the article to be packaged, a packaging bag using the same, and a packaging bag filled with the article to be packaged It is in providing the package which becomes.

The non-return dispensing nozzle according to the present invention has a posture projecting laterally from the upper end portion of the soft packaging bag body, and adheres the base end portion to the sealant layer on the inner surface of the packaging bag body by the outermost sealant layer. While the packaging bag is configured by agent bonding, fusion bonding, and the like, the liquid packaged material in the packaging bag is poured out without taking outside air into the packaging bag under the tilt of the packaging bag, A self-sealing function that automatically seals the pouring passage of the packaged object and prevents the outside air from entering the packaged bag with the thin film of the liquid packaged object as the packaging bag rises up and down. Non-return pouring nozzle that exhibits a stretched base film layer and each sealant layer laminated with the stretched base film layer, and it is possible to provide various barrier layers, intermediate layers, etc. as required One half-folded or two overlapping sheets A thin laminated film, respectively, in opposite orientation mutual one sealant layer, the peripheral portion excluding the base end side, adhesive bonding, Ri Na and divides the pouring passage to the central portion by fusion bonding or the like The liquid packaging material in the packaging bag body is poured out without taking in outside air while the packaging bag is tilted. In the case of having a self-sealing function for automatically sealing the dispensing passage under the intervention and preventing the outside air from entering the packaging bag body , for example, cutting off the tip portion of the non-return dispensing nozzle, for example, tearing When an article to be packaged is poured out by tilting the packaging bag from the tip opening of the pouring passage formed by removal and cutting and removal, the opening edge of the tip opening is in the standing posture of the packaging bag, and the lower end is inclined in a direction to approach the packaging bag body, the inclination angle Includes a pouring direction of the material to be packaged from the pouring path due to the tilt of the packaging bag, an angle of the direction of gravity to該被package is close, in a standing posture of the packaging bag, The opening edge is within a range of 10 to 30 ° with respect to a perpendicular passing through the upper end of the tip opening , and the opening edge has a shape protruding in a curved shape in the discharge direction of the package .

Na us, the tip opening of the pouring path is bent in its side view in a curved shape extend, the straight line connecting the upper and lower ends of the tip opening, the range of 10 to 30 ° angle of inclination relative to the vertical line Within.

  More preferably, the opening edge at the tip of the pouring passage has a curved shape projecting in the discharge direction of the package.

  And the packaging bag of this invention is the outer surface of the sealant layer on the inner surface of the packaging bag body with the base end portion of any one of the non-return dispensing nozzles described above at the upper end portion of the soft packaging bag body. In this sealant layer, an adhesive bonding, a fusion bonding, or the like is performed, and the non-return dispensing nozzle is projected to the side of the packaging bag body.

In this packaging bag, preferably, a water-repellent substance or an oil-repellent substance that ensures improvement in liquid breakage is applied by an appropriate method to the outer surface of at least the tip opening portion of the check dispensing nozzle. As the water repellent substance, for example, a water repellent coating agent made of silicone oil, fluorine resin, acrylic resin or amide resin can be used. As the oil repellent substance, for example, silicon resin or Teflon (registered trademark) can be used. An oil repellent coating agent such as resin or silicon knitted acrylic resin can be used.
Here, it is more preferable that the water-repellent (oil) substance also has water sliding (oil) property.

  In addition, the package of the present invention is obtained by filling and packaging a liquid package, which is made of a liquid that may contain a viscous material, powder, or granular material, in any of the packaging bags described above.

  In the non-return dispensing nozzle according to the present invention, the packaging bag in a state in which the tip opening portion is formed in the dispensing passage of the nozzle by tearing, cutting and removing the tip portion of the nozzle when dispensing the packaged item in the bag. Can be dispensed according to the requirements of the package by opening the tip opening by separating the inner surfaces of the dispensing passage by the head pressure of the package and the like. In this case, the soft packaging bag body can be poured out without taking outside air into the packaging bag by shrinking or crushing and deforming according to the volume of the packaged material.

  On the other hand, when the dispensing of the packaged item in the bag is stopped along with the return of the packaging bag from the standing position, the dispensing passage is released from the head pressure of the packaged item and the like at the same time as the standing up and returning. In addition to returning to the original shape under the occurrence of negative pressure due to the return flow of the packaged body into the packaging bag body, the inner surface wetted by the thin film of the packaged object A self-sealing check nozzle that prevents the entry of outside air into the packaging bag by automatically sealing and closing the discharge passage by adsorbing negative pressure under the assistance of the reduced pressure atmosphere. Can be demonstrated automatically.

  Therefore, in a packaging bag equipped with this non-return dispensing nozzle, the packaged items in the bag are well protected from contact with the outside air both during and after dispensing, as well as before the packaged item is dispensed. As a result, oxidation, fouling and the like of the packaged items in the bag are effectively prevented.

  In addition, in this non-return dispensing nozzle, the leading end of the dispensing passage formed by tearing, cutting and removing the leading end portion is inclined in the direction in which the lower end approaches the packaging bag body in the standing posture of the packaging bag. Based on the gravity acting on the last droplet when the packaging bag is returned to the standing posture and the dispensing of the package is stopped, the tip of the tip opening is moved to the target dispensing position. It can be dropped smoothly.

  In addition, when the opening edge of the tip opening of the non-return dispensing nozzle has a curved shape protruding in the discharge direction of the packaged item, the remaining amount of the packaged item in the bag decreases and the discharge momentum decreases. However, since the article to be packaged is dropped from a narrow range (one point) of the protruding tip after it has fallen down the curved opening edge, the drainage is improved, and the article to be packaged is placed in the dispensing passage. It does not remain attached to the opening of the tip and can effectively eliminate the occurrence of dripping and the possibility of contamination of the packaging bag and its surroundings.

  Such a non-return dispensing nozzle comprises a stretched base film layer formed by uniaxial or biaxial stretching, and respective sealant layers laminated with the stretched base film layer sandwiched therebetween, and various kinds of as required. One or two thin laminated films on both front and back sides, which can be provided with a barrier layer, an intermediate layer, etc. It can be configured by partitioning the dispensing passage in the central part by joining, fusion bonding, etc., and the structure of the check dispensing nozzle is simplified and the check dispensing nozzle is simply and quickly Can be manufactured.

Stretched base film of such a check pouring nozzle is made of uniaxial or biaxially stretched polyethylene terephthalate, ethylene vinyl alcohol copolymer, nylon, polypropylene, etc. In particular, when a biaxially stretched polyethylene terephthalate film layer is used, “Emblet PC” (trademark Unitika Co., Ltd.), which is a straight-cut polyester film, can be used. In addition, when the biaxially stretched nylon film layer is used, it is preferable to use “Emblem NC” (trademark Unitika Co., Ltd.), which is a straight-cut nylon film, for the following reasons.
That is, according to these, in addition to the case where a uniaxially stretched base film layer is used for the non-returning nozzle, it is possible to impart higher water vapor impermeability, gas barrier properties, etc. Smoothly and easily removes the linear tearing of the tip part with fingers, and makes the tear mark sufficiently smooth with no fuzz etc. It can be demonstrated.

  The thin laminated film for the check pouring nozzle, which has at least a three-layer structure, is a sealant layer that is located on each of the inner and outer surfaces of the check pouring nozzle, for example, various non-stretched PE layers, PP Layer, olefin resin layer such as metallocene catalyst polyethylene layer, ethylene vinyl acetate copolymer layer, ethylene ethyl acrylate copolymer layer, ionomer layer, etc. The base end portion of the non-return dispensing nozzle can be simply and quickly bonded by, for example, heat sealing to a sealant layer of the same type as the sealant layer on the outer surface of the nozzle as the inner surface layer of the bag body. In addition, a non-return dispensing nozzle that protrudes to the side at the upper end portion of the packaging bag body can be reliably and securely bonded to the packaging bag body. The packaging bag can be manufactured was.

  By the way, in joining the outer surface of the base end portion of the non-return dispensing nozzle having a sealant layer on both the inner and outer surfaces and made of at least a three-layer laminated film to the inner surface of the packaging bag body in this way. In order to surely prevent mutual fusion of the inner surfaces of the non-return dispensing nozzle, a release sheet having a higher melting point or not thermally melted is inserted and arranged inside the base end of the nozzle. The melting temperature of each sealant layer on the inner and outer surfaces of the non-pouring nozzle is made different by changing the material, extruding lamination conditions of each sealant layer of the same material, etc. It is effective to make the melting point of the nozzle higher than that of the sealant layer on the outer surface of the nozzle.

In the non-return dispensing nozzle as described above, the inclination angle of the lower end of the leading end opening toward the direction approaching the packaging bag main body with respect to the perpendicular passing through the upper end of the leading end opening of the pouring passage in the standing posture of the packaging bag is 10 to 10. When it is within the range of 30 °, regardless of the remaining amount of the liquid package in the bag, the pouring direction of the package in the bag is sufficiently in the direction of the action of gravity on the package. By bringing them close to each other, the packaged object can be poured out to a required pouring position with high accuracy.
That is, when the inclination angle is less than 10 °, particularly when the remaining amount of the packaged items in the bag is large, the pouring pressure may become too large and the pouring position may become unstable. When the angle exceeds 30 °, especially when the remaining amount of the packaged items in the bag is reduced, if the amount of tilting of the packaging bag is increased, the outflow direction of the packaged item from the tip opening of the pouring passage and the gravity Based on the above action, the angle difference from the flow direction of the packaged item, that is, the bending amount of the packaged item becomes too large, the dispensing direction becomes unstable, and the aim of the dispensing position cannot be determined, As a result, when the dispensing of the packaged item is stopped, the packaged item does not sufficiently drain and remains attached to the tip opening of the dispensing passage, and the adhered packaged material flows down along the tip opening. Or dripping from the lower end of the opening.

  The base end portion of any one of the above-described non-return dispensing nozzles is bonded to the sealant layer on the inner surface of the packaging bag body at the upper end portion of the soft packaging bag body, for example, with the sealant layer on the outer surface. In the packaging bag provided with the non-return dispensing nozzle projecting to the side of the packaging bag body, the packaging bag can be produced simply, quickly and inexpensively.

In such a packaging bag, when a water-repellent substance or an oil-repellent substance is applied by an appropriate method to the outer surface of the part where the tip opening of the dispensing passage formed by cutting off the tip part of the non-return dispensing nozzle is applied Further, it is possible to further improve the liquid cutting property of the packaged article in the bag, to advantageously prevent unintentional dripping of the liquid packaged article, and to more effectively prevent the packaging bag and surroundings from being damaged.
This is more effective when the water-repellent (oil) substance also has water sliding (oil) properties.

  In addition, in any of the above-described packaging bags, a liquid packaged product made of a viscous material such as wasabi, kneaded mustard, or a liquid such as seasoning that may contain powder or granular material, for example, the top or In the case of a package that is filled and packaged from the bottom, the self-sealing check function as described above is more fully exerted on the check-out nozzle when pouring out the packaged items in the bag. Repetitive dispensing of items reliably prevents the entry of outside air into the packaging bag, and accurate dispensing to the intended position of the package under the action of the non-return dispensing nozzle. In addition to guaranteeing, it is possible to effectively prevent the occurrence of unexpected dripping due to the suspension of the dispensing.

It is a top view which shows embodiment of the non-return dispensing nozzle of this invention in the cutting state of a front-end | tip part. It is a side view under the standing posture of a packaging bag which shows the example of excision of the tip part of a check pouring nozzle. It is a side view which illustrates the pouring state of the to-be-packaged object from the front-end | tip opening of the extraction | pouring channel | path in the inclination attitude | position of a packaging bag when the to-be-packaged object in a bag reduces. It is another side view which illustrates the extraction state of the to-be-packaged object from the front-end | tip opening of the extraction channel | path with the inclination attitude | position of a packaging bag. It is a top view which shows embodiment of the packaging bag of this invention. It is a perspective view which shows embodiment of the package of this invention.

Embodiments of the present invention will be described below based on the drawings.
The non-return dispensing nozzle 1 shown in FIG. 1 is an upper end portion of a soft packaging bag body 2 indicated by a phantom line in the drawing, and protrudes laterally to the sealant layer on the inner surface thereof. The base end portion of the layer is, for example, fusion bonded to form a packaging bag.

  Here, the non-return dispensing nozzle 1 is laminated with a stretched thermoplastic base film layer, for example, a uniaxial or biaxially stretched PET layer or NY layer having a thickness of 5 to 40 μm, and the stretched base film layer interposed therebetween. Each sealant layer, for example, an unstretched PE layer or PP layer having a thickness of 5 to 80 μm, and each of the thin laminated films on the front and back sides having a three-layer structure, that is, two front and back sheets having the same contour shape A thin laminated film, or a thin laminated film that is folded back and forth at the center or the like, is shown in the figure, for example, by heat sealing, in the peripheral part of one sealant layer facing each other and excluding the base end side. As shown by hatching, it can be constituted by fusion-bonding with each other and partitioning the pouring passage 3 in the center portion, and the check pouring nozzle 1 shown in the figure. Is formed by cutting the tip portion 4 of the nozzle 1 at, for example, the V-shaped bent portion 5 by tearing, cutting, or the like to form a tip opening 6 in the dispensing passage 3.

When the tip opening 6 is formed by tearing and removing the tip portion 4 as shown in FIG. 2A as an example of excision, the tip opening 6 is as shown in FIG. 2 of the packaging bag. under the standing position, the lower end is inclined obliquely to the direction approaching the packaging bag main body 2, in the present invention is inclined in a curved shape as shown in FIG.

Here, preferably, with the standing posture of the packaging bag, it passes through the upper end of the tip opening 6 of the dispensing passage, and the inclination of the tip opening 6 toward the packaging bag main body with respect to the vertical line n shown in FIG. The angle θ is set within a range of 10 to 30 °.
According to this, as described above, regardless of the remaining amount of the package in the bag, the dispensing direction of the package in the bag is set to the direction of the action of gravity on the package. It is possible to dispense the packaged items to a required dispensing position with high accuracy by bringing them close enough, and as a result, the liquid breakage is greatly improved, and the droplets are discharged from the dispensing passage. It is possible to effectively eliminate the possibility of contamination of the packaging bag and its surroundings caused by passing down the tip opening.
Note that the inclination angle θ when the tip opening 6 of the dispensing passage 3 is inclined in a curved line or a polygonal line when viewed from the side is an angle with respect to the perpendicular of an inclined straight line connecting the upper end and the lower end of the tip opening 6. Shall.

  That is, when the difficulty of the adhesion of the droplets to the tip opening 6 of the pouring passage 3 was tested, when the liquid object to be packaged was soy sauce, the tip opening 6 was in the range of the inclination angle θ of 9 to 12 °. In the range of 13 to 26 °, there was no adhesion of the droplets, and in the range of 27 to 38 °, it was found that the droplets did not easily adhere to the tip opening 6. On the other hand, as a result of testing the ease of pouring the package in the bag to the target position, if the inclination angle θ is less than 10 °, the remaining amount of the package in the bag is large. There is an inconvenience that the pouring position becomes unstable due to the output pressure becoming too large. On the other hand, if it exceeds 30 °, the opening of the tip is reduced under a decrease in the remaining amount of the packaged articles in the bag. At the beginning of the pouring from 6, the pouring is directed toward the extending direction of the pouring passage 3, but as the distance from the tip opening 6, the pouring direction is changed to the direction of gravity action. Therefore, there is a disadvantage that it is difficult to aim at the required pouring position.

About this point, it is clear also from FIG. 3 which illustrated the aspect of the change of the pouring direction of the pouring flow when the tilt angle of the packaging bag is increased as the remaining amount of the packaged items in the bag decreases. It can be seen that, as the remaining amount of the packaged items in the bag decreases, gravity rather than the pouring pressure affects the pouring direction.
That is, in the non-return dispensing nozzle 1 shown in FIG. 3A showing the case where the inclination angle θ is set to 0 °, the extending direction of the dispensing passage 3 and the action direction of gravity coincide with each other. When the remaining amount decreases, it becomes easy to aim at the required pouring position.
Further, in the non-return dispensing nozzle 1 of FIG. 3 (b) showing the case where the inclination angle θ is 10 °, the angle difference between the extending direction of the dispensing passage 3 and the direction of action of gravity is not so large. Since the amount of bending of the pouring flow is small, it is possible to pour out relatively easily from the required pouring position.
However, when the inclination angle θ is less than 10 °, there is a high possibility that the pouring pressure becomes too high and the pouring position becomes unstable when pouring when the remaining amount of the packaged items in the bag is large. become.
In the non-return dispensing nozzle shown in FIG. 3C showing the case where the inclination angle θ is 30 °, the dispensing direction is the extending direction of the dispensing passage 3 at the beginning of the dispensing, but the dispensing is performed. Since the direction gradually bends in the direction of the action of gravity, when the angle θ exceeds 30 °, it is difficult to aim at the required pouring position.

  FIG. 4 exemplifies a state in which an article to be packaged is poured out from the tip opening 6 of the pouring passage 3, and the opening edge 6 a of the tip opening 6 is in a standing posture as shown in FIG. 2. In addition, the lower end is inclined in a curved shape in a direction approaching the packaging bag body 2, and the opening edge 6a has a shape protruding in the discharge direction of the package. In this way, the opening edge 6a has a curved shape protruding in the discharge direction of the packaged object, so that the remaining amount of the packaged object in the bag is reduced and the pouring flow is weakened. Since it drops down from one point of the protruding tip position 6b of the opening edge 6a after passing down the inclined curved opening edge 6a, the liquid breakage is improved, and the packaged article is opened at the tip opening 6 It is possible to suppress the occurrence of dripping and the fouling of the packaging bag.

One of the non-return dispensing nozzles 1 described above has a sealant layer on the outer surface of the base end portion thereof fused and bonded to a sealant layer on the inner surface of the upper end portion of the soft packaging bag body 2, For example, a packaging bag 7 as shown in a plan view in FIG. 5 is formed for projecting to the side of the packaging bag main body 2 and opening the bottom for filling and packaging of a liquid article.
Although FIG. 5 shows a state in which the tip opening 6 is formed in the dispensing passage 3, the tip portion 4 of the check dispensing nozzle 1 is cut off when filling the packaging bag 7 with the article to be packaged. Of course not.

  In such a packaging bag 7, it is preferable that at least the outer surface of the portion where the tip opening 6 is formed is formed by cutting off the tip portion 4 of the check dispensing nozzle 1, and more preferably has water repellency or oil repellency. Can further improve the liquid-disrupting property of the packaged object by applying a substance having water slidability (oil) property by an appropriate method.

  Furthermore, in one of the above-described packaging bags 7, from the bottom in the drawing, a liquid packaged material made of a liquid that may contain a viscous material or powder / granular material is filled and packaged, and FIG. When it is set as the package 8 as shown in a perspective view, the non-return dispensing nozzle 1 has various functions as described above when the packaged items in the bag are poured out from the non-return dispensing nozzle 1. It can be fully demonstrated.

DESCRIPTION OF SYMBOLS 1 Check injection | pouring nozzle 2 Packaging bag main body 3 Outlet passage 4 Tip part 5 Bending part 6 Tip opening 6a Opening edge 6b Projection tip position 7 Packing bag 8 Packing body n perpendicular θ inclination angle

Claims (4)

Non-return pouring in which the base end is joined to the sealant layer on the inner surface of the packaging bag body by the outermost sealant layer in a protruding posture from the upper end of the flexible packaging bag body to the side, thereby constituting the packaging bag A nozzle,
The thin laminated films on the front and back, each of which has a stretched base film layer and each sealant layer laminated between them, are bonded to each other at the peripheral portion except for the base end, with one sealant layer facing each other. Te, Ri Na and divides the pouring passage to the central portion, wherein the pouring of the packed material in the liquid of the packaging bag body, while performing without introducing the outside air under the tilting of the packaging bag, the packaging bag With the self-sealing function that automatically seals the dispensing passage under the intervention of the thin film of the liquid packaged object with the standing up and returning, and prevents the outside air from entering the packaging bag body ,
When an article to be packaged is poured out by tilting the packaging bag from the tip opening of the dispensing passage formed by cutting the tip portion of the non-return dispensing nozzle, the opening edge of the tip opening is formed on the packaging bag. In the standing posture, the lower end is inclined in a direction approaching the packaging bag body, and the inclination angle is determined by the direction in which the package is dispensed from the dispensing passage and the gravity on the package to be packaged as the packaging bag is tilted. An angle close to the direction of action, and in the standing posture of the packaging bag , is within a range of 10 to 30 ° with respect to a normal passing through the upper end of the tip opening , and the opening edge of the package is A non-return dispensing nozzle having a shape protruding in a curved shape in the discharge direction . The base end portion of the non-return dispensing nozzle according to claim 1 is joined to the sealant layer on the inner surface of the packaging bag body with the sealant layer on the outer surface at the upper end portion of the soft packaging bag body, and the reverse A packaging bag, characterized in that a stop pouring nozzle protrudes from the packaging bag body. The packaging bag according to claim 2 , further comprising a coating layer of a water-repellent substance or an oil-repellent substance on an outer surface of at least a portion where the tip opening is formed of the check pouring nozzle. In packaging bag according to claim 2 or 3, the packaging material to be packaged liquid consisting also liquid contain viscous or powdery, particulate matter, characterized in that it is filling and packaging .

Images