JP3105999U - Easy-open packaging bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an easily-opening packaging bag in which a hand or a finger is not damaged by sharp corners even when sealed by heat sealing, and an opening position is easily recognized.
SOLUTION: The easy-open packaging bag 3 can pack a product inside with heat seal portions 6, 7 formed at both ends of a cylindrical packaging material 5, respectively. Since the corners 8a to 8d at both ends of the cylindrical packaging material 5 are formed by rounding, the corners 8a to 8d of the bag, which tend to be hard at the heat seal portions 6, 7, may damage human hands and fingers. There is no. A concave portion 12 is formed in the bag edge portion 10 corresponding to one heat seal portion 6, and an opening start notch 15 is formed in the concave portion 12. When opening the bag 3, the opening start notch 15 can be easily found by finding the recess 12.
[Selection diagram] Fig. 1

Description

  The present invention relates to an easy-open packaging bag that is gently manufactured for infants and the elderly.

  Conventionally, as a bag in which a product can be packed, a bag which is closed by applying end seal portions to both side ends of a cylindrical packaging material formed by applying a center seal portion between both side edges is known. ing. In this type of packaging bag, the product is filled into a cylindrical packaging material in which the side edges of the packaging material are sealed with a center sealer, and the packaging material is placed in the cylindrical packaging material at positions before and after the filled product. It can be used as a bag when manufacturing a continuous package by applying a seal. A bag using a synthetic resin or a laminated film as a packaging material has a high rigidity in a layer formed by heat sealing and a sufficiently high sealing property by heat sealing, so that a cut or a notch is formed for easy opening. Often.

As an example of a bag for manufacturing a bag package with a bag package or a product put therein, a flexible packaging container in which four corners are rounded and notches are also formed in a curved portion has been proposed (Patent Document 1). Generally, there are an I notch and a V notch as a shape of a notch for opening a bag, but when an I notch is provided, there is a problem that it is difficult to know which part of the packaging bag is formed with the notch. When a V-notch is formed or processed into a saw-tooth shape, it is excellent in that visibility is high, but a hard plastic film or paper such as polyethylene terephthalate (PET) or polyacrylonitrile (PAN) resin, especially a metal foil When a packaging material in which a metal thin film is laminated is used, the sharp corners may damage the fingers when opening the package, causing a problem of giving the user some kind of anxiety. This soft packaging container has been devised to solve these problems, and is characterized in that the notch edge forming the cutout portion and the outer peripheral edge of the soft packaging container are continuous in a smooth curved shape. Therefore, the opening end of the cutout portion lacks sharpness, and it is possible to almost eliminate the possibility that a finger may be damaged at the time of opening. As a result, the user can safely open the package. Of the corners of the flexible packaging container, at least the corner closest to the notch, preferably the contour of the four corners is curved, so that the corner with the corner is recognized as a lug, so The recognizability of the part is further improved, and the openability is further improved.
JP-A-2002-29548 (paragraphs [0006], [0013] to [0019], FIGS. 1 to 5)

A packaging bag having an opening start portion in which a peripheral edge of a synthetic resin film is heat-welded, wherein the opening start portion includes an opening cutout (notch) and an opening position guide convex portion. (Patent Document 2). This packaging bag is provided with an opening notch for opening position guidance in the vicinity of the opening notch together with the opening notch, so that even if the user of the packaging bag has a reduced (or no) visual ability, it can be opened. It is possible to easily confirm the position of the notch. It is said that it is preferable to provide two sets of opening start portions on the left and right sides of the packaging bag in the continuous production process of the packaging bag. The bag is provided with a pair of convex portions and concave portions on one side, and a concave portion on the other side. A projection is formed. In any case, an opening notch is formed in the recess.
JP-A-2000-168794 (paragraphs [0007] to [0008], FIGS. 1 and 2)

There has been proposed a packaging container having a notch formed of a pair of notches formed opposite to each other and an opening notch formed therebetween at a position including a scheduled opening position at an outer edge portion of a seal portion of the container. . That is, in the seal portion, a pair of cutouts is formed at the opening position, and a notch is formed in the cutout to serve as an opening cutout. The notch has a smooth shape to prevent damage when the mouth or tongue directly touches the opening of the packaging container, thereby enhancing safety.
JP 2000-190990 A (paragraphs [0006] to [0009], FIGS. 1 and 2)

In a bag for a fragrance having a double structure composed of an inner bag and an outer bag, a structure has been proposed in which a pair of cuts are provided at predetermined intervals in a peripheral seal portion of the outer bag at a predetermined interval in parallel with a tearing direction.
Japanese Utility Model Publication No. 3-68646 (page 6, line 4 to line 17, FIGS. 1 and 2)

  However, the matters described in each of the above documents are for each bag, and particularly, since the heat-sealed portion has a high hardness, sharp corners scratch the hands and fingers. There is still fear. Further, various notches are formed for easy opening, but there is a problem that it is difficult to recognize the opening start position where the notch is formed. Therefore, there is a problem to be solved in terms of further improving an easily openable packaging bag which is gentle to a hand or finger of a person who handles the bag and can be easily opened even by an infant or an elderly person.

  An object of the present invention is to provide an easy-open packaging bag in which a hand or a finger is not injured at a sharp corner even when sealed by heat sealing, and an opening position is easily recognized.

  In order to solve the above-mentioned problem, the easily-openable packaging bag according to the present invention is closed by heat sealing portions formed at both ends of the cylindrical packaging material, and the corners at the both ends are rounded. And a concave portion is formed in an edge portion corresponding to one of the heat sealing portions, and an opening start notch is formed in the concave portion.

  According to this easy-open packaging bag, the products can be stored and sealed inside and packaged by the heat seal portions formed at both ends of the cylindrical packaging material. Since the corners at both ends of the bag are rounded, the corners of the bag, which tend to be hard at the heat seal portions formed at both ends, do not damage human hands or fingers. A concave portion is formed at the edge of the bag corresponding to one of the heat seal portions, and an opening start notch is formed in the concave portion. Therefore, when opening the bag, it is possible to easily find the opening start notch by finding the concave portion.

  In this easy-open packaging bag, the edge of the bag is an unsealed portion of the bag left outside the heat-sealed portion, and the opening start notch can be formed in the unsealed portion. By leaving the unsealed part outside the heat-sealed part, the hardness of the bag edge is sufficiently soft compared to the heat-sealed part, and the bag edge becomes a sharp edge and damages human hands and fingers. There is no. Further, even if the opening start notch is formed in the bag edge portion of the unsealed portion, an edge or a projection which causes a catch due to the cut is not formed. Furthermore, if a notch is formed directly on the heat-sealed portion where the hardness increases, the notch naturally progresses when an unintended force is applied to the notch portion at the distribution stage or the like, and there is a possibility that the merchantability may decrease. is there. However, if the portion where the notch is formed is set as the unsealed portion, the packaging material is easily bent in the unsealed state, so that the progress of the notch itself hardly occurs. Even if the notch reaches the edge of the heat-sealed portion, the notch has a strong resistance to further progress, and the natural progress of the notch can be prevented.

  The easily-openable packaging bag according to the present invention is configured as described above, and since the four corners of the bag are formed by rounding, the corners of the bag that tend to be hard at the heat-sealed portions formed at both end positions are formed. Does not hurt human hands or fingers. Since the notch for opening start is formed in the concave portion formed on the edge portion of the bag corresponding to one heat seal portion, the notch for opening start can be easily formed by finding the concave portion when opening the bag package. You can find it and open the bag from the notch. As described above, even when a bag sealed by heat sealing is used, it is possible to obtain an easily openable packaging bag in which a hand or a finger is not injured at a sharp corner portion and an opening position of the bag is easily recognized. .

  Hereinafter, an embodiment of an easy-open packaging bag according to the present invention will be described with reference to the accompanying drawings. FIG. 1 is a perspective view showing an embodiment of a bag package using the easily-openable packaging bag according to the present invention, and FIG. 2 is an enlarged view of a bag edge portion of the easily-openable packaging bag used in the bag package shown in FIG. FIG.

  A bag package 1 shown in FIG. 1 uses an easily openable packaging bag 3 having good hermeticity and capable of accommodating products (some of which are indicated by imaginary lines) 2 such as candy and candy. It is. The easy-open packaging bag 3 is, for example, a multi-layer synthetic resin bag whose inner surface is vapor-deposited with aluminum (other synthetic resin packaging materials may be used), and is formed on the back side of the drawing. It is sealed by a so-called three-way seal, which is sealed by heat seal portions 6 and 7 formed as end seals at both ends of a packaging material 5 formed in a cylindrical shape by a center seal portion (indicated by a hidden line) 4. It is a bag.

  The corners 8a to 8d at the four corners of the easy-open packaging bag 3 are rounded like trimming, and the outline is rounded so as to be smoothly connected to the edge of the packaging material 5. In general, since the thickness of a laminated film tends to increase as the thickness increases to two layers by heat sealing and the hardness increases, the corners of the heat seal portions formed at both end positions become sharp, so that a person's hand or finger can be removed. There is a risk of injury. Since the corners 8a to 8d are rounded as in the easily-openable packaging bag 3, sharp points are not formed, so that human hands and fingers are not damaged.

  A recess 12 is formed in a part of the bag rim 10 corresponding to the upper heat seal portion 5 in FIG. Further, a convex portion 13 is formed in a part of the bag edge portion 11 corresponding to the lower heat seal portion 6. An opening start notch 15 is formed in the recess 12. Since the concave portion 12 has a prominent shape when the bag package 1 is opened, the opening start notch 15 can be easily found by finding the concave portion 12. More specifically, as shown in FIG. 2, the bag edge 10 is an unsealed portion 16 of the tubular packaging material 5 left outside the heat sealing portion 6, and the opening start notch 15 is an unsealed portion 16. Is formed. Similarly, the bag rim 11 is an unsealed portion of the cylindrical packaging material 5 left outside the heat-sealed portion 7.

  By leaving the unsealed portion 16 outside the heat-sealed portions 6, 7, the hardness of the bag edges 10, 11 becomes sufficiently soft compared to the heat-sealed portions 6, 7, and the bag edges 10, 11 become softer. The sharp edges do not hurt human hands or fingers. Further, even if the opening start notch 15 is formed in the bag edge portion 10 serving as the unsealed portion 16, an edge or a projection which may be caught by the cut is not formed. Furthermore, if the opening start notch 15 is formed in the unsealed portion 16 of the packaging material that is easily bent, even if an unintended force acts on the notch portion in the distribution stage or the like, the notch can be prevented from progressing. Productivity can be maintained. Even if the notch reaches the edge of the heat seal portion 5, the resistance to the progress increases, and natural progress can be prevented.

  Although the present invention has been described as an easily-openable packaging bag, it is apparent that the packaging may be a package after the product is stored therein. That is, using a non-filled / unsealed bag in which one of the heat-sealed portions has not yet been sealed, the product is filled and then heat-sealed to produce a bag package. In addition, the opening is the same as that of the easily-opening packaging bag, and thus the description thereof will not be repeated.

FIG. 1 is a perspective view showing an embodiment of a bag package according to the present invention. It is an enlarged view of the bag edge part of the bag package shown in FIG.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 1 Bag package 2 Product 3 Easy-open packaging bag 4 Center seal part 5 Cylindrical packaging material 6, 7 Heat seal parts 8a to 8d Four corners 10, 11 Bag edge part 12 Concave part 13 Convex part 15 Opening start Notch 16 Unsealed part

Claims (2)

  The cylindrical packaging material is closed by heat seal portions formed at both end positions thereof, and the corner portions at the both end positions are rounded, and concave portions are formed in the bag edge corresponding to one of the heat seal portions. And an opening start notch is formed in the concave portion. 2. The easy opening according to claim 1, wherein the bag edge is an unsealed portion of the bag left outside the heat sealing portion, and the opening start notch is formed in the unsealed portion. Packaging bag.

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