JP2002321749A - Packaging bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging bag which can readily and securely form an opening portion of a desired size. SOLUTION: This packaging bag 1 has a housing portion 2 formed by heat- sealing a packaging material composed of a synthetic resin film laminated with a thermobonding resin film or thermobonding resin on an internal layer or the internal and external layers, the housing portion 2 has a pointed end portion 10, which has a sharp-pointed shape with at least one oblique side, on a part of its perimeter, and an end seal portion 4 in the vicinity of the pointed end portion 10 is provided with a plurality of opening cuts 11 on its outer edge along the height direction of the pointed end portion 10 of the housing portion 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging bag for enclosing a liquid food, and more particularly to a packaging bag capable of controlling the amount of the enclosed food to be discharged.

[0002]

2. Description of the Related Art Conventionally, liquid foods such as soy sauce and sauces,
As a packaging bag for enclosing pasty foods such as mayonnaise and ketchup, a packaging bag as shown in FIGS. 9 and 10 is known. The packaging bag 70 shown in FIG. 9 forms a housing portion 71 by heat-sealing the periphery of a packaging material made of a heat-adhesive resin film or a synthetic resin film in which a heat-adhesive resin is laminated on an inner layer or an inner layer and an outer layer. are doing. 7
Numerals 2 and 73 denote vertical seal portions, and 74 and 75 denote horizontal seal portions. A linear opening cutout 76 is provided on the outer edge of the vertical seal portion 72.

[0003] A packaging bag 77 shown in FIG. 10 is made of a packaging material made of a thermo-adhesive resin film or a synthetic resin film in which a thermo-adhesive resin is laminated on an inner layer or an inner layer and an outer layer. Is a pillow packaging bag in which a tubular body is formed by heat-sealing, and both open ends of the tubular body are heat-sealed to form a sealed accommodation portion 78. Reference numeral 79 denotes a back seal portion, and reference numerals 80 and 81 denote end seal portions. A plurality of opening cutouts 82 each having a triangular shape cut along the outer edge direction are provided at the outer edges of the end seal portions 80 and 81. ing.

[0004]

When opening the packaging bag 70 constructed as described above, the opening notch 76 is used.
By tearing in the direction perpendicular to the outer edge of the vertical seal portion 72 (for example, the dashed line C in FIG. 9), the food sealed in the storage portion 71 with the opening formed is poured out.
However, according to the opening means as described above, when the user tries to form the size of the opening in a size corresponding to the desired flow rate of the food poured out from the opening, Cannot be arbitrarily sized, and it is difficult to adjust the flow rate of the food to be dispensed. Further, even if an attempt is made to adjust the size of the opening by changing the tearing direction from the cut for opening to the upper right direction in FIG. 9 (for example, the dashed-dotted line D in FIG. 9), the tear cannot be cut off as desired and the desired opening It is very difficult to make the size of the part.

When the packaging bag 77 is opened, an opening is formed by tearing the packaging bag 82 obliquely in the longitudinal direction to a position reaching the bent portion of the packaging material (for example, a dashed line E in FIG. 10). ). As for the packaging bag 77 forming the opening in this manner, the position of the opening notch for starting tearing and the tearing direction (angle) of the opening notches 82 provided in the end seal portions 80 and 81 are also described. By changing the size of the opening, the opening cannot be torn and cut as desired even if it is adjusted, and it is difficult to make the size of the opening to a desired size.

An object of the present invention is to provide a packaging bag in which an opening can be easily and reliably formed into a desired size.

[0007]

According to a first aspect of the present invention, there is provided a packaging bag according to the first aspect, wherein a heat-adhesive resin film or a heat-adhesive resin is laminated on an inner layer or an inner layer and an outer layer. A packaging material formed by heat-sealing a packaging material comprising: a container having a substantially sharp pointed tip having at least one side as a hypotenuse at a part of a periphery thereof; The seal portion near the pointed head is provided with a plurality of notches for opening on the outer edge thereof along the height direction of the pointed head of the housing portion. With such a configuration, a part of the peripheral portion of the housing portion has a substantially sharp pointed tip having at least one side as a hypotenuse, and an opening notch for opening is formed on the outer edge of the seal portion near the pointed tip. Since a plurality of cuts are provided along the height direction of the pointed head, of the plurality of cuts provided for opening, the size of the opening is reduced by tearing and cutting from an arbitrary cut for opening. It can be easily and reliably formed into a desired size.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a packaging bag according to the present invention will be described. FIG. 1 is a front view showing a first embodiment of a packaging bag according to the present invention. The packaging bag 1 shown in FIG. 1 is obtained by forming a packaging material made of a thermo-adhesive resin film or a synthetic resin film in which a thermo-adhesive resin is laminated on an inner layer or an inner layer and an outer layer into a tubular shape, and heat-sealing opposing edges. A pillow packaging bag in which a cylindrical body is formed, and both open ends of the cylindrical body are heat-sealed to form a sealed accommodation portion 2.
Food such as soy sauce, sauce, mayonnaise, ketchup and the like is enclosed in the storage section 2, for example. Reference numeral 3 denotes a back seal portion, and reference numerals 4 and 5 denote end seal portions.

The storage section 2 is formed by vertical side edges 6 and 7 formed by a bent portion of the packaging material and the end seal portion 4 connecting one open end of the vertical side edges 6 and 7. Hypotenuse 8
And a lateral edge 9 formed by the end seal portion 5 connecting the other open end, a peripheral edge is formed, and a part of the vertical side 7 and an oblique side 8 are formed at the peripheral edge. It has a sharp-pointed point 10.

The end sealing portion 4 forming the hypotenuse 8 forming the pointed head 10 has an opening notch 11 at its outer edge.
Are provided along the height direction of the pointed head 10 of the housing portion 2. The opening notch 11 is used for the packaging bag 1.
Is to be a starting point when an opening (not shown) is formed by tearing off the packaging bag 1.

In this embodiment, each of the opening cuts 11 has a substantially triangular cut-out shape, and a direction substantially parallel to the lateral side 9 of the housing portion 2 from the opening cut 11 (the pointed tip). Forming an opening (not shown) in the pointed part 10 of the housing part 2 by tearing and cutting off the hypotenuse 8 forming the part 10 and the vertical side part 7 formed by the bent part of the packaging material. Is available.

The opening notch 11 is not limited to the above shape, but may be formed in a linear shape as shown in FIG. 2, for example.

In this embodiment, the shape of the packaging bag 1 is such that only the end seal portion 4 has an oblique side substantially parallel to the oblique side 8, but the present invention is not limited to this. 3
The overall shape may be substantially rectangular as shown in FIG.
Even in this case, a plurality of notches 11 for opening are provided on the outer edge of the end seal portion 4 along the height direction of the pointed head 10.

When the packaging bag constructed as described above is opened, the left and right sides of the opening notch 11 are grasped by right and left hands, and the packaging bag 1 is torn from the opening notch 11 to open an opening (not shown). At this time, if the user wants to increase the size of the opening in order to increase the flow rate of discharging the food sealed in the storage section 2 of the packaging bag 1, a sharp tip is required. Of the plurality of opening cuts 11 provided along the height direction of the head 10, tearing is performed from the lower opening cut (for example, the position of the dashed line A shown in FIG. 4), and the flow rate to be poured out is reduced. In order to reduce the size of the opening in order to perform the cutting, the tearing is performed from the upper opening notch among the opening notches 11 provided along the height direction of the pointed head 10 (for example, as shown in FIG. 4). Position of dot-dash line B .

[0018] Of the plurality of opening cuts 11 provided along the height direction of the pointed head 10, the opening is cut to a desired size by tearing and cutting it from an arbitrary opening cut 11. Thus, the food sealed in the packaging bag 1 can be discharged according to a desired flow rate.

FIG. 5 is a front view showing a second embodiment of the packaging bag according to the present invention. Packaging bag 20 shown in FIG.
Are vertical side edges 6 formed by the bent portions of the packaging material,
7 and the oblique sides 21a and 21b formed by the end seal portions 4 connecting one of the open ends of the vertical side sides 6 and 7, and the horizontal sides formed by the end seal portions 5 connecting the other open ends. 9 form a peripheral portion, and the peripheral portion has a substantially sharp pointed tip 23 formed by the oblique side 21a and the oblique side 21b. Other configurations are the same as those of the first embodiment.

The packaging bag 2 of the second embodiment as described above.
Even with 0, the same effect as in the first embodiment can be obtained.

FIG. 6 is a front view showing a third embodiment of the packaging bag according to the present invention. Packaging bag 30 shown in FIG.
The packaging material made of a heat-adhesive resin film or a synthetic resin film in which a heat-adhesive resin is laminated on an inner layer or an inner layer and an outer layer is heat-sealed at its four peripheral edges to form a sealed housing portion 4. One side seal bag. Reference numerals 31 and 32 denote vertical seal portions, and reference numerals 33 and 34 denote horizontal seal portions.

The housing portion 2 includes vertical sides 35 and 36 formed by the vertical seal portions 31 and 32,
An oblique side 37 formed by a horizontal seal portion 33 connecting one open end of the horizontal seal 36 and a horizontal seal portion 34 connecting the other open end.
A peripheral portion is formed by the horizontal side 38 formed by the above, and the peripheral portion has a substantially sharp point 39 formed by a part of the vertical side 36 and the oblique side 37.

In this embodiment, the opening notch 11 is provided at the outer edge of the horizontal seal portion 33 forming the oblique side 37. However, the present invention is not limited to this, and may be provided on the outer edge of the vertical seal portion 32 near the pointed head 39. Other configurations are the same as those of the first embodiment.

The packaging bag 3 according to the third embodiment as described above.
With 0, the same effect as in the first and second embodiments can be obtained.

FIG. 7 is a front view showing a fourth embodiment of the packaging bag according to the present invention. Packaging bag 40 shown in FIG.
The packaging material made of a heat-adhesive resin film or a synthetic resin film in which a heat-adhesive resin is laminated on an inner layer or an inner layer and an outer layer is heat-sealed at its four peripheral edges to form a sealed accommodation portion 2. One side seal bag. Reference numerals 41 and 42 denote vertical seal portions, and reference numerals 43 and 44 denote horizontal seal portions.

The housing portion 2 includes vertical side edges 45 and 46 formed by the vertical seal portions 41 and 42, and the vertical side edges 45 and 46, respectively.
A peripheral portion is formed by oblique sides 47a and 47b formed by a horizontal seal portion 43 connecting one open end of the opening 46 and a horizontal side 48 formed by a horizontal seal portion 44 connecting the other open end. The hypotenuse 47a and the hypotenuse 47b
And a pointed head 49 having a substantially sharp shape.

In this embodiment, the shape of the packaging bag is substantially rectangular in its entirety.
Are provided on the outer edge of the horizontal seal portion 43 along the height direction of the pointed head 49.

The packaging bag 4 according to the fourth embodiment as described above.
Even with 0, the same effect as in the first to third embodiments can be obtained.

FIG. 8 is a front view showing a fifth embodiment of the packaging bag according to the present invention. Packaging bag 50 shown in FIG.
Is a heat-sealing resin material or a packaging material made of a synthetic resin film in which a heat-adhesive resin is laminated on an inner layer or an inner layer and an outer layer. One side seal bag. Reference numeral 51 denotes a vertical seal portion, and 52 and 53 denote horizontal seal portions.

The housing portion 2 has a vertical side 54 formed by the bent portion of the packaging material, a vertical side 55 formed by the vertical seal portion 51, and one opening end of the vertical sides 54, 55. A hypotenuse 56 formed by the connecting horizontal seal portions 52;
A peripheral edge is formed by a horizontal side 57 formed by a horizontal seal portion 53 connecting the other open ends, and a substantially sharp point formed by a part of the vertical side 54 and an oblique side 56 at the peripheral edge. It has a head 58.

In this embodiment, the opening notch 11 is provided at the outer edge of the horizontal seal portion 52 forming the oblique side 56. Other configurations are the same as those of the first embodiment.

The packaging bag 5 according to the fifth embodiment as described above.
With 0, the same effect as in the first to fourth embodiments can be obtained.

[0030]

As described above, according to the packaging bag of the present invention, the packaging material made of the heat-adhesive resin film or the synthetic resin film in which the heat-adhesion resin is laminated on the inner layer or the inner and outer layers is heat-sealed. A packaging bag in which a receiving portion is formed, wherein the receiving portion has a substantially sharp pointed tip having at least one side as an oblique side at a part of a peripheral edge thereof, and a vicinity of the pointed tip. Since a plurality of opening cuts are provided on the outer periphery of the seal portion along the height direction of the cusp of the housing portion, of the plurality of opening cuts provided along the height direction of the cusp. Since the size of the opening can be easily and reliably formed to a desired size by tearing and cutting from any opening cut, the food sealed in the packaging bag can be formed according to a desired flow rate. Can be poured out.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of a packaging bag according to the present invention.

FIG. 2 is a partially omitted front view showing another example of the opening notch shown in the first embodiment.

FIG. 3 is a front view showing another example of the overall shape of the packaging bag shown in the first embodiment.

FIG. 4 is an explanatory diagram showing an example of a tearing position of the packaging bag shown in the first embodiment.

FIG. 5 is a front view showing a second embodiment of the packaging bag according to the present invention.

FIG. 6 is a front view showing a third embodiment of the packaging bag according to the present invention.

FIG. 7 is a front view showing a fourth embodiment of the packaging bag according to the present invention.

FIG. 8 is a front view showing a fifth embodiment of the packaging bag according to the present invention.

FIG. 9 is a front view showing an example of a conventional packaging bag.

FIG. 10 is a front view showing another example of a conventional packaging bag.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Packaging bag 2 Housing part 3 Back seal part 4, 5 End seal part 6, 7 Vertical side 8 Bevel 9 Side 10 Pointed head 11 Opening cut 20 Packaging bag 21a, 21b Oblique side 23 Pointed head 30 Packing bag 31, 32 Vertical seal part 33, 34 Horizontal seal part 35, 36 Vertical side 37 Oblique side 38 Horizontal side 39 Pointed head 40 Packaging bag 41, 42 Vertical seal part 43, 44 Horizontal seal part 45, 46 Vertical Sides 47a, 47b Oblique side 48 Horizontal side 49 Pointed head 50 Packaging bag 51 Vertical seal 52, 53 Horizontal seal 54, 55 Vertical side 56 Oblique 57 Horizontal side 58 Pointed

Claims (1)

[Claims] 1. A packaging bag in which a housing portion is formed by heat-sealing a packaging material made of a thermo-adhesive resin film or a synthetic resin film in which a thermo-adhesive resin is laminated on an inner layer or an inner layer and an outer layer, The housing portion has a substantially sharp pointed tip having at least one oblique side at a part of a peripheral edge thereof, and a sealing portion near the sharp point is provided with an opening notch at an outer edge of the sealing portion. A plurality of packaging bags are provided along the height direction of the cusp.