JP2014162488A - Packaging bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging bag that even when a tearing portion is hardly confirmed visually, allows the tearing portion to be preferably recognized and opened properly and stably so that the tearing portion can be opened properly to allow a content to be preferably taken out.SOLUTION: The packaging bag 100 comprises: a spout 106 that is formed extending from near an end of an upper end seal 103 of a content storing portion 105 toward the upper end seal 103; a tearing inducing crack 111 that is extended on the upper end seal 103, from an outer edge portion, opposite to the spout 106, of the upper end seal 103 to near the spout 106; and guide portions 110A and 110B that are extended across the tearing inducing crack 111 and guide the tearing portion to smoothly progress to the spout 106.

Description

  The present invention relates to a structure of a packaging bag that is continuously produced by folding back a continuously supplied packaging film and sealing the overlapping portion.

  Conventionally, a continuously supplied packaging film is folded along the conveying direction so that the open side is overlapped, and a side seal (seal in the direction along the conveying direction (vertical seal)) is applied to the overlapped portion to form a cylinder A cylindrical packaging bag is formed, and a seal (end seal, lateral seal) in a direction substantially orthogonal to the conveying direction is applied, and the contents are filled into the cylindrical packaging bag via a raw material filling nozzle, and then cylindrical An end seal (lateral seal) is applied to the upper portion of the packaging bag and sealed to continuously form a package with three sides sealed.

  As this type of packaging bag, for example, in Patent Document 1, the liquid (for example, soy sauce, sauce, etc.), which is the contents, is edible or drinkable so that it can be taken out beautifully without getting your hands dirty. There has been proposed a packaging bag in which a spout (a bottle opening) of a predetermined size is formed when opened. For example, as shown in FIG. 9, the sealing passage 8 is provided, and the end seal 7 is provided with at least one of tearing portions a, b, and c that allow the opening size to be adjusted.

  Various packaging bags having a shape as shown in FIG. 10 have also been proposed. The thing shown in FIG. 10 is subjected to dimple processing (unevenness processing) as a slip stopper so that the person who opens it can easily grasp the tear portion.

  10A shows an example in which a spout (bin port) is provided on the folded portion side, and FIG. 10B shows a spout (bin port) on the side seal (vertical seal) side. It is an example in the case of providing.

Japanese Examined Patent Publication No. 6-62174

  However, in the conventional packaging bag as described above, the position of the tear (perforation) is visually observed in a place where the environment is bad for vision, such as a dark place, or when a person with presbyopia or other weak vision is trying to open it. It may be difficult to grasp clearly, and there is a possibility that an unexpected part is opened.

  In addition, as shown in FIGS. 10A and 10B, when the distance from the tear start point to the spout (bottle opening) is long, the opening is oblique even if the initial opening position is correct. There was also a risk that the opening characteristics would be insufficient and the pouring characteristics would be poor.

  The present invention has been made in view of such a situation, and even if it is difficult to visually confirm the tearing portion while having a simple and low-cost configuration, the tearing portion can be recognized well, It is an object of the present invention to provide a packaging bag that can be opened accurately and stably, and thus can open the tear portion accurately and take out the contents satisfactorily.

Therefore, the packaging bag according to the present invention is
The packaging film that is continuously supplied is overlapped, and at least one side seal and a lower end seal are applied to the overlapped portion to form a content container, and the content is filled inside Then, a packaging bag produced by applying an upper end seal to the upper part of the content container and then sealing it,
A spout formed to extend from the vicinity of the upper end seal side end of the content container in the upper end seal direction;
A tear-inducing trough extending on the upper end seal from the outer edge of the upper end seal opposite the spout to the vicinity of the spout;
A guide portion that extends to both sides across the tear guide rod and guides the tear portion to smoothly advance to the spout;
It is characterized by comprising.

  In the present invention, a notch portion may be formed at a starting point portion when the tear guide rod is torn.

  According to the present invention, even if it is a simple and low-cost configuration, even when it is difficult to visually confirm the tearing part, the tearing part can be recognized well and can be opened accurately and stably. Therefore, it is possible to provide a packaging bag that can accurately open the tear portion and take out the contents satisfactorily.

It is a front view which shows the whole structure of the packaging bag of Example 1 which concerns on this invention. It is sectional drawing which shows an example of the cross-sectional shape of FIG. It is a front view which shows the whole structure of the packaging bag of Example 2 which concerns on this invention. It is sectional drawing which shows an example of the cross-sectional shape of FIG. It is a front view which shows an example at the time of providing a pouring spout (bin mouth) in the folding | turning part side, (A) corresponds to FIG. 1, (B) is a front view which shows an example corresponding to FIG. is there. It is a front view which shows an example at the time of forming the V-shaped cut | notch 115 (215) in the starting part of the perforation 111 (211), (A) respond | corresponds to FIG. 5 (A), (B) FIG. 6 is a front view showing an example corresponding to FIG. It is a front view which shows an example at the time of forming the L-shaped notch | incision 116 (216) in the starting part of the perforation 111 (211), (A) respond | corresponds to FIG. 5 (A), (B) FIG. 6 is a front view showing an example corresponding to FIG. It is a front view which shows an example at the time of applying this invention to the packaging bag of the four-side seal | sticker which piles up two front and back packaging films, and seal-forms four sides. It is a front view which shows the packaging bag of patent document 1. It is a front view which shows an example of the conventional packaging bag.

  Embodiments according to the present invention will be described below with reference to the accompanying drawings. The present invention is not limited to the embodiments described below.

  The packaging bag (packaging body) 100 of Example 1, which is an example of the embodiment of the present invention, wraps a continuously supplied packaging film along the conveying direction so as to overlap the open side, The side seal (the seal in the direction along the transport direction (vertical seal)) is applied to form a cylindrical packaging bag, and the lateral seal (transverse seal, end seal) substantially orthogonal to the transport direction is applied to the cylinder. A packaging bag in which three sides are sealed by filling the inside of the cylindrical packaging bag via a raw material filling nozzle and then applying an end seal (horizontal seal) to the upper portion of the cylindrical packaging bag and sealing it. Hereinafter, it is also simply referred to as a three-side sealed packaging bag). In addition, as each sealing method described above, for example, heat sealing that is welded by heat is applicable, but other sealing methods are also possible.

  The packaging film used for the packaging bag 100 of Example 1 can be composed of, for example, a base film such as PET, or a heat seal film such as polyethylene having a melting point lower than that of the base film. In addition, the packaging film may have a three-layer structure including a base film, an intermediate film, and a heat seal film. The same applies to other embodiments described below.

  As shown in FIG. 1, the packaging bag 100 according to the first embodiment includes a side seal 101, a lower end seal 102, an upper end seal 103, a folded portion 104, and a content storage portion 105. It is configured.

  In addition, a bin mouth portion 106 that serves as a spout when opened is provided on the upper part of the content container 105 on the side seal 101 side. The bin opening 106 and the content storage unit 105 are in communication.

  And in the packaging bag 100 which concerns on Example 1, convex part 110A, 110B which is an example of the guide part (step part) which concerns on this invention to the upper side end seal 103 along the longitudinal direction of the upper side end seal 103. There are two rows (two items). The two rows of convex portions 110A and 110B extend from the outer edge of the upper end seal 103 opposite to the bin mouth portion 106 (the folded portion 104 in FIG. 1) or from the vicinity thereof to the vicinity of the bin mouth portion 106.

  As shown in FIG. 2, the cross-sectional shapes of the convex portions 110 </ b> A and 110 </ b> B are such that the non-sealed portion 114 is left from the heat seal portions 113 on both sides by leaving the non-sealed portions 114 with respect to the upper end seal 103. It is constructed so as to be raised from the front and back surfaces using a poly reservoir 112 formed by a member that elutes into the surface. The poly reservoir 112 cools and hardens to some extent.

  Furthermore, in the first embodiment, a perforation (tearing guide rod) 111 that facilitates tearing is formed between the two protrusions 110A and 110B.

  Similar to the two rows of convex portions 110A and 110B, the perforation (tearing guide bar) 111 is a bin from the outer edge of the upper end seal 103 opposite to the bin mouth portion 106 (folded portion 104 in FIG. 1) or the vicinity thereof. It extends to the vicinity of the mouth portion 106. The tearing guide rod is not limited to a perforation, and a laser rod, a cutting line, and the like can be assumed.

  Therefore, a person who wants to open (opener) can recognize the location of the convex portions 110A and 110B visually or by tactile sensation of the fingers of the hand. Grasping the grip part 103A, which is the upper end seal 103 on the convex part 110A side (above the perforation 111), and grasping the grip part 103B below the perforation 111 with the finger of the other hand, between the convex parts 110A, 110B When the grip portion 103 </ b> A is torn along the perforation 111, the bin mouth portion 106 is opened in the direction of the extension line of the perforation 111.

  As a result, the grip portion 103A is separated from the packaging bag 100, and the bin mouth portion 106 is opened with an appropriate opening size substantially along the extension line of the perforation 111. The contents can be taken out to the outside through the bottle opening 106 without being stained.

  Further, in the first embodiment, since the convex portions 110A and 110B having the poly reservoir 112 which is a relatively hard portion are formed along both sides of the perforation 111, when the tearer tears, the perforations 111 The tearing portion is deviated and the opening is not slanted or the opening is not insufficient, so that the opening can be performed satisfactorily, and the pouring characteristics can be stabilized.

  That is, the convex portions 110A and 110B extending on both sides across the perforation (tearing guide rod) 111 have a function of guiding the tearing portion to smoothly advance to the spout 106 when tearing. It is configured.

  Thus, according to Example 1, even when it is difficult to visually confirm the tear portion, the tear portion can be recognized well and can be opened accurately and stably. It is possible to provide a packaging bag in which the tear portion can be accurately opened and the contents can be taken out satisfactorily.

  A packaging bag (packaging body) 200 of Example 2 which is an example of the embodiment of the present invention is a three-side sealed packaging bag (packaging body) similar to that of Example 1. In addition, the same code | symbol is attached | subjected to the element same as the element already demonstrated, and detailed description is abbreviate | omitted.

  As shown in FIG. 2, the packaging bag 200 according to the second embodiment includes a side seal 101, a lower end seal 102, an upper end seal 103, a folded portion 104, and a content container 105. The bottle opening part 106 which becomes a spout when it is opened is provided in the upper part by the side seal 101 side of the content storage part 105 comprised.

  In the packaging bag 200 according to the second embodiment, the upper end seal 103 includes convex portions (or concave portions) 210A and 210B, which are examples of guide portions (stepped portions) according to the present invention. Two rows (two strips) are provided along the direction. The two rows of convex portions (or concave portions) 210A and 210B extend from the outer edge of the upper end seal 103 opposite to the bin mouth portion 106 (in FIG. 3, the folded portion 104) or the vicinity thereof to the vicinity of the bin mouth portion 106. ing.

  As shown in FIG. 4, the convex portions (or concave portions) 210 </ b> A and 210 </ b> B are formed by performing, for example, embossing or embossing at the same time when heat-sealing the upper end seal 103. And recesses).

  Furthermore, in the second embodiment, a perforation (tearing guide rod) 211 that facilitates tearing is formed between the two protrusions (or recesses) 210A and 210B.

  This perforation (tearing guide rod) 211 is the outer edge of the upper end seal 103 opposite to the bin mouth portion 106 (folded portion 104 in FIG. 3) or the same as the two convex portions (or concave portions) 210A and 210B. It extends from the vicinity to the vicinity of the bottle mouth portion 106.

  Therefore, the unsealing person can recognize the location of the convex portions (or concave portions) 210A and 210B visually or by tactile sensation of the fingers of the hand. (Or recess) Grasping part 103A which is upper end seal 103 of 210A (above perforation 211), and grasping grasping part 103B below perforation 211 with the finger of the other hand, projecting part (or recess) When the grip portion 103A is torn along the perforation 211 between 210A and 210B, the bin mouth portion 106 is opened in the direction of the extension line of the perforation 211.

  As a result, the grip portion 103A is separated from the packaging bag 200, and the bottle mouth portion 106 is opened with an appropriate opening size substantially along the extension line of the perforation 211. The contents can be taken out to the outside through the bottle opening 106 without being stained.

  Furthermore, in the second embodiment, convex portions (or concave portions) 210A and 210B, which are portions having relatively high rigidity, are formed along both sides of the perforation 211 by being embossed or embossed. When the opener tears, the tearing part is displaced from the perforation 211, and the opening is not slanted or the opening is not insufficient. The characteristics can be stabilized.

  That is, the convex portions (or concave portions) 210A and 210B extending on both sides across the perforation (tearing guide rod) 211 guide the tearing portion to smoothly advance to the spout 106 when tearing. It is configured to have a function.

  Thus, according to Example 2, even when it is difficult to visually confirm the tear portion, the tear portion can be recognized well and can be opened accurately and stably. It is possible to provide a packaging bag in which the tear portion can be accurately opened and the contents can be taken out satisfactorily.

  In each of the above-described embodiments, the example in which the bin mouth portion 106 is disposed on the side seal 101 side upper portion of the content accommodating portion 105 has been described. However, the present invention is not limited to this, and FIG. As shown in FIG. 7, the present invention can be similarly applied to the case where the bin mouth portion (pour spout) 106 is disposed in the vicinity of the upper portion of the contents accommodating portion 105 on the folded-back portion 104 side.

  In this case, FIG. 5A corresponds to the first embodiment (FIG. 1), and FIG. 5B corresponds to the second embodiment (FIG. 2).

  Further, as shown in FIGS. 6 (A) and 6 (B), by forming a V-shaped cut 115 (215) at the starting point of the perforation 111 (211), the unsealed person can further perforate 111. It becomes easy to recognize the position of (211), and since the starting point is accurately generated at the time of tearing, further tearing and further opening can be made easy and accurate.

  In this case, FIG. 6A corresponds to FIG. 5A, and FIG. 6B corresponds to FIG.

  Furthermore, as shown in FIGS. 7 (A) and 7 (B), by opening a larger substantially L-shaped notch 116 (216) at the starting point of the perforation 111 (211), the opener can It becomes easier to recognize the position of the perforation 111 (211), and since the starting point is accurately generated at the time of tearing, further tearing and further opening can be made easy and accurate.

  Furthermore, in each Example mentioned above, although the three-side seal packaging bag was demonstrated, this invention is not limited to this, As shown to FIG. 8 (A)-FIG. It is also applicable to a four-side sealed packaging bag in which the four packaging films are stacked to form a seal on four sides.

  Here, an example of an approximate size, dimensions of each part, etc. is shown in FIG. According to the size and the size of each part, the unsealing person can recognize the position of the perforation to be cut off by extending the convex part (or the concave part) visually or by touching the finger of the hand. Then, the opener can open the bottle mouth portion 106 at the position of the perforation to be cut off by extending the convex portion (or the concave portion), and by extension, the opener can unpack the contents without getting his hands dirty. It can be taken out through the mouth portion 106.

  The embodiment described above is merely an example for explaining the present invention, and it is needless to say that various modifications can be made without departing from the gist of the present invention.

100 Packaging Bag (Packaging Body) (Example 1)
101 Side seal 102 Lower end seal 103 Upper end seal 104 Folded portion 105 Contents storage portion 106 Spout (bin port)
110A Convex part (upper side) (an example of a guide part)
110B Convex part (lower side) (an example of a guide part)
111 perforation (tearing guide)
112 Poly pool 200 Packaging bag (packaging body) (Example 2)
210A Convex part (or concave part) (upper side) (an example of a guide part)
210B Convex part (or concave part) (lower side) (an example of a guide part)
211 Perforation (Tear-inducing heel)
115, 215 V-shaped cut 116, 216 substantially L-shaped cut

Claims (2)

The packaging film that is continuously supplied is overlapped, and at least one side seal and a lower end seal are applied to the overlapped portion to form a content container, and the content is filled inside Then, a packaging bag produced by applying an upper end seal to the upper part of the content container and then sealing it,
A spout formed to extend from the vicinity of the upper end seal side end of the content container in the upper end seal direction;
A tear-inducing trough extending on the upper end seal from the outer edge of the upper end seal opposite the spout to the vicinity of the spout;
A guide portion that extends to both sides across the tear guide rod and guides the tear portion to smoothly advance to the spout;
A packaging bag characterized by comprising. The packaging bag according to claim 1, wherein a notch portion is formed at a starting point portion when the tear guide bag is torn.

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