JP2001315799A - Packaging bag and packaging sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging bag showing a less possibility of unintentional opening or a less possibility of entering dusts or the like through a slit acting as an opening start point, and also a less possibility of causing an opening area to be unintentionally narrowed when it is opened or a less possibility of producing dispersed shape in the opening. SOLUTION: A packaging bag of the present invention having a packaging sheet formed into a bag shape is comprised of a packaging sheet main body with a slit acting as a slit opening start point and a seal opening label adhered to the packaging sheet main body in such a way that the slit may be closed and it is opened from the slit when it is peeled. The packaging sheet main body is formed with an opening planned region with at least the slit and an easy slit opening line extended from both ends of the slit. The seal opening label is characterized in that the same is adhered to the opening planned region of the packaging sheet main body to reinforce the opening planned region and prevent it from being opened into the opening planned region.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a packaging bag and a packaging sheet, and more particularly, to a packaging bag and a packaging sheet provided with an opening label.

[0002]

2. Description of the Related Art Conventionally, as this type of packaging bag, for example, a packaging bag 81 shown in FIG. 3 is known. Such packaging bags have a U
In the packaging sheet main body 82 provided with the notch 83 having a character shape or the like, the opening label 8 is formed so as to cover the entire surface of the notch 83.
6 is a packaging sheet 90 to which the sheet 6 is adhered.

The opening of the packaging bag 81 is separated from the opening 83 by peeling off the opening label 86 and pulling it away from the packaging bag 81 so that the packaging sheet main body 82 attached to the opening label 86 is cut off as a starting point of the cleavage. The tearing starts, and the opening area expands as the unsealing label 86 moves.

Further, since the notch 83 as a starting point of cleavage is covered with the opening label 86, the notch 83 of the packaging sheet main body 82 expands due to stress received from contact with the outside or the like, and opens unexpectedly. Can be effectively prevented, and the cuts 83
There is also an advantage that it is possible to effectively prevent intrusion of dust and dirt from the inside.

However, in such a packaging bag 81, the direction, strength, and
Since the portion of the packaging sheet body 82 that is to be torn varies depending on the speed or the like, the opening area is unexpectedly narrowed, and the opening may be insufficient. And in such a case,
Further, complicated work such as enlarging the opening area using scissors, a cutter, or the like was required. In addition, there is a problem that the shape of the opening varies due to the variation of the portion of the packaging sheet body 82 to be torn.

In view of the above, the present invention has been made in view of the above-mentioned problems, and there is little possibility that an opening may be opened unintentionally, and there is little possibility that dust or dirt may enter from a cut as a cleavage starting point. It is an object of the present invention to provide a packaging bag and a packaging sheet that are less likely to have a narrow opening area and a non-uniform opening shape.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a packaging sheet body having a cut as a cleavage starting point, a method for closing the cut, and a method for separating from the cut when peeled. A packaging sheet provided with an opening label attached to the packaging sheet body in a bag shape, wherein the packaging sheet body extends at least from the cuts and both ends of the cuts. The opening label is formed with the easy tearing line, and the opening label further opens the opening of the packaging sheet body so as to reinforce the opening area and prevent the opening sheet from breaking into the opening area. An object of the present invention is to provide a packaging bag attached to a predetermined area.

In the packaging bag having the above structure, the opening label is peelably attached to the packaging sheet main body so as to close the cut as a starting point of the tearing of the packaging sheet main body. This has the advantage that it is possible to effectively prevent the intrusion of dust and dirt from the cuts.

In the packaging bag, the opening is started by peeling the opening label from the packaging sheet main body. More specifically, the opening is attached to the opening label from a cut as the cleavage starting point. It starts when the packaging sheet body cleaves. When the separation of the opening label is continued, the easy tearing line applied to the packaging sheet main body,
That is, the tearing of the packaging sheet main body proceeds along a line processed so as to be easily split. Further, when the separation of the opening label is continued and reaches the end point of the expected opening area, the expected opening area is completely separated from the packaging sheet body.

[0010] Here, in the packaging bag, the opening area is formed by at least the cut and the easy cleavage line extending from both ends of the cut, so that the packaging bag extends along the outer edge of the opening area. All of the packaging sheet main body is easily torn, and the unsealing label reinforces the opening scheduled area to prevent tearing into the opening scheduled area.
Since the package sheet is attached to the opening area of the packaging sheet main body, it is possible to prevent a part to be torn apart from the easy tearing line and prevent the tear from reaching the opening area. In addition, there is an advantage that the opening region is unlikely to be narrowed unintentionally, and the opening can be opened with little variation in the opening shape.

Here, the predetermined opening area is an area formed in advance so as to be opened, and the predetermined opening area is necessarily formed only by a cut as a cleavage starting point and an easy cleavage line. However, the present invention is not limited to this. For example, when the easy tearing line extends to the edge of the packaging sheet main body, it is formed by a cut as a cleavage starting point, the easy tearing line, and the edge of the packaging sheet body.

Preferably, the easy tear line is perforated, and the label is affixed to the non-opening area of the packaging sheet main body so as to surround at least the opening area. it can.

[0013] The packaging bag having the above structure has an advantage that the easily cleavable line can be formed at a low cost because the easily cleavable line is a general perforation.

Further, at the perforation, a through hole is formed in the packaging sheet main body to communicate the inside and the outside of the packaging bag, and the packaging sheet main body is so arranged that the opening label surrounds at least the opening area. This has an advantage that it is possible to effectively prevent intrusion of dust, dirt, and the like from the through-hole because it is adhered to the non-opening expected region.

Further, the present invention is a packaging sheet comprising a packaging sheet main body having a cut as a cleavage starting point, and an opening label detachably attached to the packaging sheet main body so as to close the cut. In the packaging sheet body, at least the cut and the easy tear line extending from both ends of the cut, an opening expected area is formed,
Further, the opening label is a packaging sheet characterized by being attached to the opening area of the packaging sheet main body to reinforce the opening area and prevent tearing into the opening area. It also provides. The packaging sheet having such a configuration can package the article to be packaged, for example, by wrapping the article to be packaged or forming it into a bag shape, and has the same advantages as the above-described packaging bag.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a packaging bag 1 according to the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a perspective view of a packaging bag 1 according to the present embodiment.

The packaging bag 1 shown in FIG. 1 includes a packaging sheet main body 2 made of paper, and an opening label 6 releasably attached to the packaging sheet main body 2.
Are formed in a bag shape.

The package sheet body 2 has a substantially V-shaped cut 3 and an easy-to-cleave line 4 extending from both ends of the cut. Specifically, the cut 3
Is formed as a cleavage starting point 11 of the packaging sheet main body 2 by cutting the packaging sheet main body 2 continuously. Both ends 13 of the cut are bent so as to be linearly continuous with the easy tearing line.

From the both ends 13 of the notch 3, an easy tearing line 4, that is, a line processed so as to be easily torn,
It is extended in parallel by a predetermined distance while maintaining a certain interval,
In order to form the cleavage end point 12, they are bent in directions approaching each other and are connected while converging with each other.

The bent portion 14 of the easy cleavage line 4 and the converged and connected portion, that is, the cleavage end point 12, are cut.

That is, at the cleavage end point 12, the parallel lines form the same V-shape as the cleavage initiation point 11, and the ends thereof are connected. A hexagonal strip-shaped portion surrounded by the easy cleavage line 4 and the notch 3 is formed as the opening scheduled region 5.

Most of the parallel line portions of the easy tearing line 4 are formed by perforations in which continuous through holes communicating the inside and the outside of the packaging bag 1 are continuous.

The opening label 6 is provided in the opening area 5.
It is made of a polyethylene terephthalate piece having a shape similar to the above, that is, a hexagonal strip shape, and larger than the opening planned area 5.

The opening label 6 is provided in the predetermined opening area 5.
The opening scheduled area 5 of the packaging sheet main body 2 and the non-opening scheduled area 7 of the packaging sheet main body 2 so as to surround the expected opening 5 so as to reinforce the opening to prevent the opening into the opening expected area 5. And is affixed to.

Further, a notch 3 as a cleavage starting point,
In the vicinity of the notch 8 as the cleavage end point, the two cuts are closed so as to extend over the edge of the scheduled cleavage area 5 and the edge of the non-cleavable scheduled area 7 across the cut,
When peeled from the cleavage origin side, cut 3 as the cleavage origin
Is attached to the packaging sheet main body 2 so as to be cleaved from the main body.

The sticking of the opening label 6 is performed by uniform heat sealing over the entire surface.

Here, the opening label 6 is provided with a knob 9 that is not attached to the packaging sheet main body 2 so that it can be easily grasped when peeled from the opening tearing start side. It is formed so as to be located on the front side of the notch 3 as a cleavage starting point when it is adhered.

The opening is performed by peeling the opening label 6 from the packaging sheet main body 2 and then pulling it apart. At this time, the opening area 5 of the packaging sheet main body 2 is closed by the opening label 6. The adhesive strength between the opening label 6 and the packaging sheet body 2 is stronger than the tearing strength of the easy tearing line 4, that is, the opening label 6 is This is the strength at which the easy-to-cleave line 4 is cleaved before peeling from the substrate.

Further, the notch 3 forming the predetermined opening area 5 and the bent portion 1 of the easy tear line 4 are formed.
By making the cut 4, it is possible to effectively prevent the cleavage at the bent portion 14 from being shifted from the easy-to-cleave line 4, regardless of the direction, strength, speed, etc. of the separation of the opening label 26 at the time of opening. This has the advantage that the opening area 5 can be reliably opened.

Further, the opening label 6 is provided with the knob 9 which is not adhered to the packaging sheet main body 2;
By locating the knob 9 on the front side of the notch 3 as the cleavage starting point, the opening label 6 can be easily grasped at the time of opening, and it can be opened only by pulling the knob 9. Has the advantage of

Further, the adhesive strength between the opening label 6 and the packaging sheet main body 2 is set to be stronger than the tearing strength of the easy tearing line 4, so that the sticking strength of the easy tearing line 4 in the middle of the opening is increased. Prior to cleavage, the opening label 6 and the opening scheduled area 5 of the packaging sheet main body 2 do not peel off,
This has the advantage that the opening can be securely made.

Although the packaging bag 1 and the packaging sheet 10 of the present embodiment have the above-described advantages due to the above-described configuration, the present invention is not limited to the above-described configuration, and the design can be changed as appropriate. It is.

For example, the form of the packaging bag according to the present invention has been described in the above embodiment as a gas bag type, but is not limited to a gas bag type, and may be a three-sided bag, for example.

The material of the packaging sheet body 2 is not limited to paper, but may be a polymer film such as polyethylene terephthalate.

Further, the easy tearing line 4 is not limited to a perforation line, and may be, for example, an embossed line having a locally reduced sheet thickness.

The shape of the opening scheduled area 5 is not limited to a hexagonal strip shape, but may be, for example, a rectangular shape depending on the use of the packaging bag.

Further, the form of sticking of the opening label 6 to the packaging sheet body 2 is not limited to uniform sticking on the entire surface of the opening label 6, but may be multi-point sticking, halftone dot sticking, or the like. For example, an opening label 6 can be attached to the non-opening area 7 so as to surround the opening area 5 in a dotted line.

The area where the opening label 6 is adhered to the packaging sheet main body 2 is not limited to the above-described embodiment, and may be, for example, the area where only the opening scheduled area 5 is adhered.

Further, the method of attaching the opening label 6 to the packaging sheet main body 2 is not limited to heat sealing, but may be applied using, for example, an anaerobic adhesive.

Further, the opening label 6 is provided with one knob 9 only on the side of the cleavage starting point. However, the number of the knobs is not limited to one. It is also possible to provide
When the knob at the end point of the tear is pulled, the end point of the tear acts as a starting point of the tear, and there is an advantage that the opening of the opening label 6 can be performed from the direction toward the end point of the tear.

Further, the shape of the opening label 6 is not limited to a hexagonal strip shape.
Irrespective of the shape corresponding to the above shape or the shape of the planned opening area 5, it may be, for example, a rectangle.

The material of the opening label 6 is not limited to polyethylene terephthalate, but may be paper, for example.

Further, in the packaging bag 1 shown in FIG. 1, one opening scheduled area 5 is formed on the packaging sheet main body 2, but the number of the opening scheduled areas 5 is not limited to one, and is not limited to one. The number may be three or more, for example, three.

Further, in the packaging bag 1 shown in FIG. 1, one opening label 6 is stuck on the packaging sheet main body 2. Is formed, and the number of the opening labels 6 is not limited to one as in the case where the opening labels 6 are adhered to each of the opening scheduled areas 5, but may be two or more, for example, three.

Further, as shown in FIG. 2 (a), the package sheet body 22 formed into a substantially rectangular shape is inserted from both ends 33 of the cut 23 as a cleavage starting point into one of the package sheet bodies 22.
The wrapping sheet 30 may be configured such that the easily cleavable line 24 extends to one edge 35 and the opening 23 is formed by the cut 23, the easily cleavable line 24, and the edge 35.

The packaging sheet having such a structure can be obtained by rolling natto or the like so that the opening label 46 is exposed on the surface, as shown in FIG.
As shown in FIG. 3 (c), rice balls and the like are used by wrapping the rice balls and the like along their outer surfaces according to their shapes.

In the packaging sheet shown in FIG. 2A, when the opening label 26 is peeled off, the packaging sheet main body 22 is cleaved to its edge 35, where the opening area 2 is opened.
5 is completely separated from the packaging sheet body 22.

[0048]

As described above, in the packaging bag and the packaging sheet according to the present invention, the opening area is undesirably narrowed,
This has the effect that the opening shape can be prevented from varying.

[Brief description of the drawings]

FIG. 1 is a perspective view of a preferred embodiment of a packaging bag according to the present invention.

2A is a plan view of a preferred embodiment of the packaging sheet according to the present invention, FIG. 2B is a perspective view of the preferred embodiment of the packaging sheet according to the present invention, and FIG. 1 is a perspective view of a preferred embodiment of a packaging sheet.

FIG. 3 is a conceptual diagram of a conventional packaging bag.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Packaging bag 2 Packaging sheet main body 3 Cut 4 Easy tear line 5 Expected opening area 6 Opening label 7 Expected non-opening area 10 Packaging sheet

Claims (3)

[Claims] 1. A packaging sheet main body (2) having a cut (3) as a cleavage starting point, and the packaging sheet so as to close the cut (3) and to tear from the cut (3) when peeled. A packaging bag formed by forming a packaging sheet (10) having an opening label (6) attached to a main body (2) in a bag shape, wherein the packaging sheet main body (2) has at least the notch. (3) and the easy tearing line (4) extending from both ends of the cut (3) form an expected opening area (5), and the opening label (6) further includes the opening label area (5). A packaging bag, which is attached to the planned opening area (5) of the packaging sheet main body (2) so as to reinforce 5) and prevent cleavage into the planned opening area (5). 2. The easy cleavage line (4) is a perforation,
The opening label (6) is attached to the non-opening area (7) of the packaging sheet body (2) so as to surround at least the opening area (5). 2. The packaging bag according to 1. 3. A packaging sheet main body (2) having a cut (3) as a cleavage starting point, and an opening label (peelable) attached to the packaging sheet main body (2) so as to close the cut (3). 6) a packaging sheet comprising:
In the packaging sheet body (2), an opening opening area (5) is formed by at least the notch (3) and the easy tearing line (4) extending from both ends of the notch (3). The opening label (6) is provided in the opening scheduled area (5).
The opening area (5) of the packaging sheet main body (2) in order to reinforce the sheet and prevent the opening into the opening area (5).
A packaging sheet, which is attached to a packaging sheet.