JP2003191965A - Packaging bag - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging bag in which an operator can hold a holding piece easily and rapidly and easily open its seal part. <P>SOLUTION: This packaging bag is constituted of a pair of sheet members 1a, 1b having outer circumferential ends heat sealed to each other. A cut tape 2 is placed between the pair of sheet members 1a, 1b. The cut tape 2 is adhered to one sheet member 1a in such a way that at least any one of the ends of the cut tape 2 is positioned at the heat sealed part and at the same time one sheet member 1a is cut along an end part of the cut tape 2 to form a holding piece 3. This packaging bag is characterized in that the other sheet member 1b is formed of a recess 4 so that the holding piece 3 is positioned inside. <P>COPYRIGHT: (C)2003,JPO

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging bag provided with an opening cut tape for packaging an article to be packaged. 2. Description of the Related Art Conventionally, as a packaging bag for packaging an article to be packaged such as food, a pair of sheets having the same shape and having the outer peripheral ends heat sealed is known. Each of the pair of sheet members is made of, for example, a resin sheet that does not have air permeability so as to prevent outside air from touching the packaged object. [0003] Since such a resin sheet has strength, there is a drawback that it is difficult to open a packaging bag made of this resin sheet without using scissors or the like. Therefore, in order to facilitate opening of the packaging bag, there has been proposed a packaging bag in which a band-shaped cut tape is adhered to a surface of one sheet body which is an inner surface of the packaging bag. [0004] The cut tape is attached to one of the sheets so that an end is located at a portion where the pair of sheets is heat-sealed to form a packaging bag. Then, one sheet body is cut along the end of the cut tape located at the portion to be heat-sealed to form a gripping piece. According to the packaging bag having the above structure, if the gripping piece is pulled outward with respect to the one sheet member and in the longitudinal direction of the cut tape, the one sheet member is broken along the cut tape, and scissors or the like are cut off. It is possible to easily open the packaging bag without using any. [0006] However, in the packaging bag having the above-described structure, a gripping piece is formed on only one of the pair of sheets having the same shape whose outer peripheral ends are heat-sealed. Therefore, when heat sealing the pair of sheet members, the cut tape and the gripping piece may be welded to the other sheet member. In addition, even if the outer peripheral ends of the pair of sheet members are heat-sealed by doping the gripping pieces, the elasticity of the gripping pieces and the cut tape keeps the gripping pieces and the cut tape in close contact with the other sheet body. In many cases. Thereby, in the conventional packaging bag, even if the consumer tries to grip the gripping piece to open the packaging bag, the gripping piece is in close contact with the other sheet body, so that only the gripping piece can be easily and quickly. Could not grasp. [0007] In view of such circumstances, an object of the present invention is to provide a packaging bag that can easily and quickly grip a gripping piece and can be easily opened. [0008] In order to solve the above problems,
The packaging bag according to the present invention comprises a pair of sheets 1a and 1b whose outer peripheral ends are heat-sealed with a cut tape 2 interposed between the pair of sheets 1a and 1b. And the cut tape 2 is attached to one of the sheet bodies 1a so that at least one end of the cut tape 2 is located at a portion to be heat-sealed. One sheet body 1 along
In a packaging bag in which a is cut and the gripping piece 3 is formed, a notch 4 is formed in the other sheet body 1b so that the gripping piece 3 is included therein. According to the packaging bag having the above structure, the end of the cut tape 2 is connected to the pair of sheet members 1a, 1b as in the conventional case.
The cut tape 2 is positioned at a portion to be heat-sealed. Since the cutout 4 is formed in the other sheet 1b corresponding to the end of the cut tape 2, the end of the cut tape 2 is formed in the cutout 4. The other sheet body 1 is placed in a state where the gripping piece 3 to which the part is adhered is located, that is, in a portion facing the gripping piece 3.
b can be made not to be located, and the gripping piece 3 is easily and quickly gripped without performing a step of separating (peeling) the gripping piece 3 or the end of the cut tape 2 from the other sheet 1b. The packaging bag can be easily opened. Hereinafter, an embodiment of a packaging bag according to the present invention will be described with reference to the drawings. As shown in FIG. 1, the packaging bag according to the present embodiment comprises a pair of substantially identically shaped sheets 1a and 1b whose outer peripheral ends are heat-sealed with a predetermined width. Each of the sheet bodies 1a and 1b is a so-called resin sheet in which resin is molded. One sheet member 1a has a rectangular shape in a plan view, and a cut tape 2 is adhered at a position away from one end in the longitudinal direction by a predetermined distance. Cut tape 2
To further describe the arrangement of the sheet member 1a, the sheet member 1a is positioned at a predetermined distance from one longitudinal end of the sheet member 1a so as to avoid a heat-sealed portion at the longitudinal end of the sheet member 1a. A cut tape 2 set to have a length corresponding to the length in the short direction is attached with both ends aligned with both ends in the short direction of the sheet member. Further, one sheet 1a is cut along both ends in the transverse direction of the cut tape 2 at a cutting depth shallower than the width of the heat seal to form a gripping piece 3 for opening. ing. That is, the space between the pair of cuts becomes the gripping piece 3 for opening. The other sheet member 1b is connected to the one sheet member 1b.
As in the case of FIG. 2A, the cut tape 2 has a substantially rectangular shape in a plan view, and such that when the pair of sheets 1a and 1b are overlapped, the end of the cut tape 2 attached to the gripping piece 3 is exposed. A cutout 4 is formed at a position corresponding to the end of the cut tape 2 attached to one sheet 1a. More specifically, from one end of the other sheet member 1b in the longitudinal direction, the cut tape 2 is cut from one end of the one sheet member 1a in the longitudinal direction.
At a distance equivalent to the distance to the position where is attached, a cutout part 4 is formed in which a part of both ends in the short direction located at the other end side is cut out and the grip piece 3 is included. . The notch 4 has a semi-elliptical shape in the major axis direction, and the length of the semi-ellipse in the major axis direction, that is, the notch depth of the notch 4 is smaller than the width of the heat seal. And one sheet body 1a for forming the gripping piece 3
The depth of the cut is set deeper than the cut depth. The length of the semi-elliptical cutout 4 in the short axis direction, that is, the opening width of the cutout 4 located at the end of the sheet is set to be equal to or larger than the width of the gripping piece 3. . That is, the notch depth and the opening width of the notch 4 are adjusted so that the gripping piece 3 is provided inside the notch 4 and the outside air is prevented from flowing into the inside of the packaging bag. The periphery of 4 is also set so that heat sealing can be reliably performed. The pair of sheet members 1a and 1b having the above-described structure
The outer peripheral ends of each other are heat-sealed to form a packaging bag. In addition, in the packaging of the packaged object by the packaging bag, an opening for insertion is formed in a state in which one end of the sheet body is not heat-sealed, and after the packaged object is inserted through this opening, This is performed by heat-sealing one end that has not been heat-sealed to a predetermined width. As shown in FIG. 2, the gripping piece 3 located in the notch 4 is gripped via the notch 4 to open the package to be taken out of the packaging bag having the above structure.
By pulling the gripping piece 3 toward the outer surface of the one sheet member 1a and toward the end opposite to the end of the cut tape 2 located at the gripping piece 3, the end point of the cut in which the gripping piece 3 is formed is set. Then, one of the sheets 1a becomes a breaking starting point, and one of the sheets breaks along both ends in the short direction of the cut tape 2 to form an opening on the line, and the sheet is opened. As described above, since the notch 4 is provided at the position of the other sheet 1b corresponding to the gripping piece 3 formed on the one sheet 1a, the cut tape 2 is provided in the notch 4. And the gripping piece 3 can be positioned, and the gripping piece 3 can be easily and quickly gripped without separating (releasing) the gripping piece 3 from the other sheet member 1b. . This makes it possible to easily and quickly open the packaging bag. Incidentally, the packaging bag of the present invention is not limited to the above-described embodiment, and it is needless to say that various changes can be made without departing from the gist of the present invention. In the present embodiment, the shape of the notch 4 is semi-elliptical, but it is not always necessary to make it semi-elliptical, and it may be semi-circular, triangular, square, or the like. In other words, the shape of the notch 4 is a shape that can expose the end of the cut tape 2 and allow the gripping piece 3 cut and formed along the cut tape 2 to be present inside. Good. Further, in this embodiment, the cutout depth of the cutout portion 4 is set to be equal to or less than the width of the heat seal so that the outside air does not flow into the packaging bag. If the heat seal is used, the notch depth of the notch 4 may be set to be equal to or larger than the width of the heat seal. Further, in the present embodiment, a resin sheet is used for the pair of sheet bodies 1a and 1b, but the pair of sheet bodies 1a and 1b may be a sheet made of a textured paper sheet adhered to a resin sheet, or a paper sheet. A so-called composite sheet, such as a sheet obtained by coating a resin, may be used. Alternatively, a resin sheet may be used for one of the pair of sheet members 1a and 1b, and a composite sheet may be used for the other. As described above, as an effect of the present invention, the notch part in which the holding piece formed in one sheet body is formed is formed in the other sheet body, so that the other sheet body is formed. Since the gripping piece does not face the gripping piece, the gripping piece inside the cutout can be easily and quickly gripped without performing an operation of separating the gripping piece from the other sheet body, and the packaging bag Can be easily opened.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall perspective view of a packaging bag according to an embodiment of the present invention. FIG. 2 shows a state diagram when the packaging bag according to the embodiment is opened. [Description of Signs] 1a, 1b: sheet body, 2: cut tape, 3: gripping piece, 4: notch

Claims (1)

Claims: 1. A pair of sheet bodies (1a, 1b) whose outer peripheral ends are heat-sealed with a cut tape (2) between the pair of sheet bodies (1a, 1b). And the cut tape (2) is attached to one of the sheet bodies (1a) so that at least one end of the cut tape (2) is located at a portion to be heat-sealed.
In a packaging bag in which one sheet body (1a) is cut along the end of the cut tape (2) to form a gripping piece (3), the gripping piece (3) is contained therein. A packaging bag comprising a cutout (4) formed in the other sheet (1b).