JP2016052907A - Package - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a package in which projection volume may be easily adjusted according to pressing pressure onto a container rum part and a reverse flow prevention function is strengthened so that a content is hardly remained at a port.SOLUTION: There is provided a self standing packaging bag in which a bottom part (4) is formed by folding a film inwardly at a lower part of a drum part film arranged in an opposing manner, a left seal part (21), a right seal part (22) and a top seal part (23) are formed by sealing left and right side parts and a top part respectively, an ejecting part (24) is formed on an upper corner part of the top seal part and either of the left seal part or the right seal part. The ejecting part of the package projects to the outside of the drum part. The right and left seal parts at a root of the ejecting part is fixed in a state where the ejecting part is closed. A seal part (1) capable of engaging with an over-cap covering the ejecting part is engaged.SELECTED DRAWING: Figure 1

Description

  The present invention mainly contains a low-viscosity content that is susceptible to oxidative degradation, and is a container mainly composed of a film. The content can be easily poured out of the container by pressing the barrel. In addition, the present invention relates to a package having a spout having a backflow prevention function that closes the spout and stops the inflow of air into the container if the pressing is stopped.

Open the container for packages that contain low-viscosity liquids, such as foods such as soy sauce and seasonings that are easily oxidized, non-food products such as perm and hair dye liquids, and beverages containing vitamin C such as fruit juice drinks. The action of pouring out the contents or closing the spout frequently promotes the oxidative deterioration of the contents, so if it is opened at the time of pouring, the outside air will enter the package and cause the contents to deteriorate. It is a difficult and annoying act that is easy to invite and to prevent.
In particular, if the container is left open, the contents will deteriorate due to oxidization, mold, etc. will occur, causing deterioration, decay, discoloration, etc., moisture will escape, the viscosity will rise rapidly, and it will solidify near the spout Problems such as doing. Therefore, the package that can not be used all at once and stores the contents to be used in several times has been expensive, such as a bottle container.
However, since the bottle container is filled with air after the contents are poured out, there is a big problem in storing the contents that are likely to be oxidatively deteriorated for a long time after opening.
In the case of an extruded tube made of an early metal such as aluminum or lead, there was no problem of air flowing back into the interior because there was no force to restore the content after pouring out the contents. However, when a container with a low-viscosity content that tends to open a hole is placed, there is a problem that reliability and usability are poor, such as difficulty in adjusting the amount to be dispensed.
For this reason, very expensive containers such as a double bottle container with a thin container inside are used.

With respect to such a problem, in Patent Document 1,
A liquid dispensing nozzle whose base end is fused and joined to the inner surface of the package body at the side or top of the flexible package body with the outermost sealant layer in a protruding position from the package body. There,
Impress the laminated film on each side of the front and back, which has a thermoplastic stretched base film layer and a sealant layer, in the opposite position of the stretched base film layer, which has a higher melting point than the sealant layer, in the peripheral portion except for the base end. A flat liquid dispensing nozzle is proposed which is fused to each other by a fusing seal.
The package having such a liquid dispensing nozzle has a backflow prevention function that prevents the outside air from entering the package, but it is difficult to adjust the amount of dispensing when the contents are discharged. was there. Further, there is a problem that the mouth is exposed and, although slightly, the contents adhere to the vicinity of the nozzle, which is unsanitary.

Japanese Patent No. 4392198

  Therefore, it is an object of the present invention to obtain a package that is easy to adjust the amount of protrusion according to the pressure that pushes the container body, and that strengthens the backflow prevention function so that the contents hardly remain at the mouth.

The invention according to claim 1 of the present invention is
In a packaging body having opposed films, sealing the periphery, and forming a pouring part at the corner,
Let the pouring part of the package pop out to the outside,
The packaging body is characterized in that seal parts for fixing the left and right seal portions at the base of the pouring portion are fitted with the pouring portion closed.

  Invention of Claim 2 of this invention is a package of Claim 1 which provided the hole in the right-and-left seal part of the extraction part base, and fixed the extraction part base through the hole.

  In the invention according to claim 3 of the present invention, the fixing of the seal part to the base of the extraction part is such that the seal part is provided with a front fixing part and a back fixing part. A fitting hole is provided, and when they are connected by a hinge and folded at the hinge portion, the shaft passes through the hole of the left and right seal portions, and further inserted into the other fitting hole to lock. Or it is a package of 2.

  The invention according to claim 4 of the present invention is characterized in that the tip of the pouring part is fused when not opened, and the tip of the pouring part can be cut and opened at the time of opening. It is a package of description.

  The invention according to claim 5 of the present invention is the package according to any one of claims 1 to 4, wherein a screw part that fits with the overcap is provided at the tip of the seal part.

In the package of the present invention, the opening of the spout does not open greatly, and the amount of pouring is easy to adjust.
Furthermore, since the backflow prevention function is strengthened, the spout is closed immediately after pouring, and the contents are less likely to adhere to the tip of the spout and can be kept clean. Furthermore, since the cap is provided, it does not get dirty by touching the spout.
In addition, it is possible to attach simple seal parts by retrofitting or by attaching them in advance, and it can be manufactured on a general studding pouch production line.
Therefore, it is not necessary to make a new production line to produce the package of the present invention, and the product cost can be kept low.

It is an external appearance perspective view in an example of the package of the present invention. It is an example of the package of this invention, and is the top view which shows the shape of the extraction part vicinity of a package, the external view of a seal part single-piece | unit, and a longitudinal cross-sectional view. It is an example of the package of this invention, and is sectional drawing which shows the process of attaching a seal part to a package. It is sectional drawing which shows the process of opening a extraction part in an example of the package body of this invention. It is an example of the package of this invention, and is a cross-sectional view of the vicinity of the extraction | pouring part. It is an example of the package of this invention, and is a cross-sectional view of the vicinity of the extraction | pouring part of the state which pushed the trunk | drum and raised the internal pressure. It is an example of the shape of the fitting shaft which fits the back fixing plate and front fixing plate in the package of this invention.

Hereinafter, the container with a backflow prevention valve of the present invention will be described in detail with reference to the drawings.
FIG. 1 is an external perspective view of an example of the package of the present invention.
In this example, the front film 2 and the back film 3 that face each other form a body sheet that forms a body part, and the bottom part 4 is formed by folding the sheet into the lower part, thereby becoming a self-supporting packaging container. Yes. Further, the left and right side portions of the front film 2 and the back film 3 of the trunk portion are sealed to form a left seal portion 21 and a right seal portion 22.
Furthermore, the top part is sealed and a top seal part 23 is formed.
In addition, an inclined extraction portion 24 is formed at the upper corner of the top seal portion 23 and the left seal portion 21.
The pouring part 24 is formed by protruding from the body part of the package, and the left and right seal parts at the base of the pouring part are fixed with the seal part 1 sandwiched therebetween.
The bottom part 4, the front film 2, and the back film 3 may be a single film, and may be folded at the bottom part to form the bottom part 4 and the body part, respectively. Alternatively, they may be manufactured separately and overlapped and sealed with the bottom folded.

FIG. 2-1 is a plan view showing a shape in the vicinity of the extraction portion.
The package of the present invention is filled with the contents before the top seal portion 23 is formed, and sealed with the top seal.
At that time, a pouring seal portion 240 is formed in the pouring portion 24, and the hole 241 is provided on the left and right sides of the pouring portion at the same time as it pops out from the trunk portion 20 of the package body and the outer shape is removed.
This hole 241 is used to mate with the seal part.
An unsealed portion 2400 is formed at the center of the dispensing portion 24, which becomes a passage for dispensing contents, and has a length that extends to the tip of the seal part.

FIG. 2-2 is an external view of the seal part 1 as a single unit, and FIG. 2-3 is a cross-sectional view of the seal part 1, showing a shape formed by injection molding.
The seal part 1 includes a spout 11 having a threaded portion 111 on the outside, two back fixing portions 12 connected to the left and right of the spout, and a front fixing portion 13 connected to each back fixing portion 12 by a hinge 14.
The back fixing portion 12 is provided with a shaft 121, and the front fixing portion 13 is provided with a fitting hole 131 having a cross cut, so that the shaft 121 can be fitted into the fitting hole 131.
A cylindrical hole is formed inside the spout, and the outlet 24 is sized to enter the cylindrical hole. Moreover, a portion having an inner diameter narrower than the width of the spout seal 240 is created on the spout tip side, and the spout 11 is forcibly designed to open in a substantially square shape at the tip.

3A and 3B show a process of fitting the seal part 1 to the extraction part 24 of the body part 20. FIG. 3A shows a process of inserting the extraction portion 24 into the outlet 11 of the seal part 1 and inserting the shaft 121 of the back fixing portion 12 into the hole 241.
The two holes 241 are provided at the same pitch as the two shafts 121 of the seal part 1 so that the front film 2 and the back film 3 in the unsealed portion 2400 in the middle thereof are in close contact with each other.

3-2 is a process in which the back fixing portion 12 and the front fixing portion 13 connected by the hinge 14 are fitted by inserting the shaft 121 into the fitting hole 131, and the front film 2 and the back of the unsealed portion 2400 are fitted. The film 3 is fitted in a close contact state.
Further, it is confirmed in this step that the tip of the extraction portion 24 protrudes from the tip of the outlet 11.
Usually, the overcap is screwed onto the outside of the spout 11 in this state and sold to consumers.

FIG. 4A shows a state in which the overcap is removed, the tip of the pouring portion 2401 that has jumped out from the tip of the spout 11 is cut, and the pouring portion is opened.
Normally, in order to pour out the contents in this state and store the rest, an overcap 5 is fitted as shown in FIG. Therefore, the overcap 5 serves to cover the contents so as not to get dirty with the contents remaining at the unsealed tip of the extraction portion 24.

FIG. 5-1 is a cross-sectional view of the XX portion of FIG. 4-1.
The shaft 121 is inserted into the fitting hole 131, and the unsealed portion 2400 of the extraction portion is in a state where the front film 2 and the back film 3 are in close contact.
In this state, when an internal pressure is applied by pushing the body portion, the space between the front film 2 and the back film 3 of the unsealed portion 2400 spreads, and the contents can flow out temporarily.
However, when the internal pressure decreases, the gap between the front film 2 and the back film 3 of the unsealed portion 2400 is immediately closed and the state shown in FIG.
Thus, the package of the present invention has a backflow prevention function.

FIG. 5-2 is a cross-sectional view of the YY portion of FIG. 4-1.
The unsealed portion 2400 in the extraction portion 24 of the YY portion is not in a state where the front film 2 and the back film 3 are in close contact. Since the left and right extraction portion seals 240 are not pressed from the front and back sides and are narrower than the seal width, the unsealed portion 2400 at the tip of the extraction portion is pushed from the left and right and opened. It is in a state.
For this reason, only the root of the XX portion where the seal portions at both ends of the unsealed portion 2400 are fixed is fixed with the left and right seal portions sandwiched therebetween, and has a backflow prevention function so as to always close. Yes.

FIG. 6 is a cross-sectional view taken along the line XX of FIG. 4-1, and shows a state in which the pressure inside the package body is increased by pressing the body portion strongly from the normal state of FIG. 5-1.
The internal pressure increases, and the unsealed portion 2400 of the extraction portion 24 is slightly opened. Thus, the unsealed part 2400 of the extraction | pouring part 24 opens according to the internal pressure to apply, and the content is poured out. Therefore, it is easy to adjust the dispensing amount. Further, when the force pushing the body portion is weakened, the unsealed portion 2400 of the XX portion is closed as soon as possible, and the backflow preventing function is exhibited. For this reason, there is a feature that the storage performance of the contents which are not easily invaded by outside air and easily deteriorate by oxidation is high.
Further, in order to further adjust the flow rate, it can also be adjusted by changing the width of the seal part 1 sandwiching the base side seal part in the vicinity of the extraction part 24.

7A is a cross-sectional view in which the shaft 121 of the back fixing portion 12 is provided with a fitting hole 131 having a cut in the cross of the front fixing portion 13, and the shaft 121 is fitted in the fitting hole 131. An example of the shape of the tip of the shaft 121 is shown.
FIG. 7-2 is an example of the second embodiment, and shows a shaft-shaped shaft tip. FIG. 7C shows an example of a fitting claw-shaped shaft tip in the third embodiment. In the case of a saddle shape or a fitting claw shape, there is a problem that it is difficult to remove the seal part, but since it fits firmly, there is an advantage that the seal part does not come off even if the body part is pressed firmly.

The front film 2 and the back film 3 used in the body portion of the present invention are preferably materials that are flexible and elastic, and have a force to return to the original shape, and the contents from the outside air or from the inside. A material that prevents permeation is preferred.
Therefore, low density polyethylene with high sealability, ethylene vinyl acetate copolymer, etc. are used as a re-inner layer, and a lamination film in which a metal foil with a high barrier property is laminated on an intermediate layer, or a polyethylene having a vapor deposition layer such as metal or silicon oxide What laminated | stacked the terephthalate film etc. can be used. Furthermore, the lamination film containing the film biaxially stretched in a part of film is preferable.
For example, from the outer layer,
Biaxially stretched polyethylene terephthalate film / silicon oxide deposited layer / low density polyethylene / polyamide resin / low density polyethylene,
Biaxially stretched polyethylene terephthalate film / low density polyethylene / aluminum foil / low density polyethylene / polyamide resin / low density polyethylene,
Biaxially stretched polypropylene film / modified low density polyethylene / aluminum foil / low density polyethylene / polyamide resin / low density polyethylene,
Polyamide resin / maleic anhydride modified polyethylene / low density polyethylene,
Low density polyethylene / maleic anhydride modified polyethylene / ethylene vinyl acetate copolymer saponified product / maleic anhydride modified polyethylene / low density polyethylene,
Low density polyethylene / maleic anhydride modified polyethylene / polyamide resin / maleic anhydride modified polyethylene / low density polyethylene,
The film of the structure is considered.

Since the body having such elasticity is made mainly of plastic, it is highly flexible, but the restoring force, that is, maintains the original shape and tries to return to the original shape even if it is deformed. High shape memory. For this reason, when the contents are discharged and the container is stopped from being pushed, the container tries to return to its original state, and the force of sucking air from the outside works to return the capacity of the pushed out internal volume.
However, in the package of the present invention, when the internal pressure is reduced, the unsealed portion of the XX cross-section immediately closes the gap and the outside air does not enter.
In addition, since the package of the present invention continues with the YY cross-section portion opened first through the unsealed portion 2400 having a narrow gap such as the XX cross-section, the contents are not scattered even when being poured out. The speed is reduced and the liquid is gradually discharged from the dispensing unit 24.

  The material used for the mouth portion 3 of the present invention is a hard material that does not change in quality and does not change in quality, and a resin that can form a hinge is preferable. For example, a polypropylene resin, a high density polyethylene resin, a medium density polyethylene resin, a polyoxymethylene resin, a polyamide resin, and the like are conceivable and can be manufactured by injection molding or compression molding.

The package of the present invention is as described above. Since the seal part 1 is simply attached to the self-supporting package as a retrofit, a normal production line can be used as it is. Further, since the spout is not fused, no fusion device is required, and the cost can be kept low. Furthermore, because it is a retrofit, the direction of the spout can be set in a direction that is easy to pour.
And since it has a backflow prevention function, it can be used also for the contents which air does not enter inside and is easily oxidized and deteriorated.
Moreover, according to the pressure which pushes a trunk | drum, it is discharged | emitted gradually from the clearance gap of the slightly opened unsealed part 2400, and it is easy to adjust the amount of extraction, without scattering. The spout is hard to get dirty and the overcap can be screwed together, so that the spout can be kept clean and the merit of the present invention is great.

1 ... Seal part 11 ... Spout 111 ... Screw part 12 ... Back fixing part 121 ... ... Shaft 13 ... Table fixing part 131 ... Fitting hole 14 ... Hinge 2 ... Table film 20・ ・ ・ ・ ・ ・ ・ ・ Body 21 ・ ・ ・ ・ ・ ・ ・ ・ Left seal part 22 ・ ・ ・ ・ ・ ・ Right seal part 23 ・ ・ ・ ・ ・ ・ ・ ・ Ceiling seal part 24 ・ ・ ・... Pouring part 240 ... Pouring seal part 2400 ... Unsealed part 241, ... Hole 3 ... Back Film 4 ... Bottom 5 ... Overcap

Claims (5)

In a packaging body having opposed films, sealing the periphery, and forming a pouring part at the corner,
Let the pouring part of the package pop out to the outside,
A packaging body in which seal parts for fixing the left and right seal parts at the base of the pouring part are fitted with the pouring part closed.   The package according to claim 1, wherein a hole is provided in the left and right seal portions at the base of the pouring portion, and the base of the pouring portion is fixed through the hole.   Fixing the seal part to the base of the dispensing part is provided with a front and back fixing part on the seal part, a shaft on one side of the front and back fixing part, and a fitting hole on the other, and they are connected by a hinge. The package according to claim 1 or 2, wherein when folded at the hinge portion, the shaft passes through the holes of the left and right seal portions, and is inserted into the other fitting hole to be locked.   The package according to any one of claims 1 to 3, wherein the tip of the pouring part is fused when unopened, and the tip of the pouring part can be cut and opened when opened.   The package according to any one of claims 1 to 4, wherein a screw part that fits with the overcap is provided at a tip of the seal part.

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