JP5530681B2 - Pillow packaging body and packaging material for pillow packaging - Google Patents

Description

  The present invention relates to a pillow package in which an article to be packaged is pillow-packaged with a packaging material made of a bendable resin film, and a packaging material for pillow packaging for pillow-wrapping the article to be packaged.

  Conventionally, pillow packaging has been known as a form for packaging foods such as bread and confectionery, and articles to be packaged such as daily necessities. Such pillow packaging generally wraps an article to be packaged with a packaging material composed of a bendable resin film.

  Here, the packaging process of pillow packaging will be described. In general, pillow packaging is such that each packaging object is arranged in sequence on a belt-like packaging material (resin film) conveyed in the longitudinal direction. This is done by wrapping things with packaging materials.

  More specifically, in the pillow packaging, after the packaging material is supplied onto the packaging material conveyed in the longitudinal direction, the packaging material is bent in the short direction perpendicular to the longitudinal direction so as to wrap the packaging material, Both ends of the packaging material overlapping in the short direction are sealed to form a palm seal portion extending in the longitudinal direction, and the overlapping portions of the packaging material on both sides of the package in the longitudinal direction are sealed to each other. By forming a pair of sealing seals extending in the direction, the entire periphery of the packaged object is surrounded by the packaging material, and the part of the packaged object surrounded by the packaging material is separated as a pillow package. . Further, in the above-described packaging process, a notch-shaped notch is formed in the joint seal part or the sealing seal part.

  Accordingly, as shown in FIG. 9, the pillow package includes a packaged object 51 and a packaging material 52 composed of a bendable resin film, and the packaging material 52 is wrapped around the packaged object 51. In the bent state, both ends in one direction are sealed to form a palm seal portion 53, and both ends in the other direction orthogonal to one direction located on both sides of the article to be packaged 51 overlap each other. The sealed portions are sealed to form a pair of sealing seal portions 54, 54, and a notch 55 is formed in the palm seal portion 53 (see FIG. 9A), or one sealing seal portion. 54 has a notch 55 formed (see FIG. 9B).

  And the pillow package 50 of the said structure covered the to-be-packaged object 51 from the notch 55 (vertex of the edge which defines the notch 55) formed in the joint seal part 53 or the sealing seal parts 54 and 54 as the starting point. The resin film (wrapping material 52) can be opened by cutting in the same direction as the other direction in which the joint seal portion 53 extends, or in the same direction as the one direction in which the sealing seal portions 54 and 54 extend.

  That is, the pillow package 50 in which the notch 55 is formed in the palm seal portion 53 is formed of a resin film (wrapping material 52) covering the article 51 to be packaged starting from the notch 55 (the apex of the edge defining the notch 55). The pillow package 50 which can be opened by cutting in the same direction as the direction in which the sealing seal portions 54 and 54 extend and the notch 55 is formed in the sealing seal portions 54 and 54, defines the notch 55 (the notch 55 is defined). The resin film (packaging material 52) covering the article to be packaged 51 starting from the apex of the edge can be opened by cutting in the same direction as the other direction in which the palm seal part 53 extends.

  By the way, in any of the pillow packaging bodies 50, the packaging material 52 may not be cut in a good manner at the time of opening, and as a result, the opening (opening for taking out the packaged object 51) formed when opened is distorted. May become narrow or narrow. Therefore, in the conventional pillow package 50, it may be difficult to take out the package 51.

  Then, this invention makes it a subject to provide the pillow packaging body which can form the big opening which can take out a packaged object easily at the time of opening, and the packaging material for pillow packaging.

  The pillow packaging body according to the present invention includes a packaging material composed of a bendable resin film, and the packaging material is bent in one direction so as to wrap the article to be packaged, and both end portions in one direction are located between each other. Sealed to form a joint seal portion, and the overlapping portions of both ends in the other direction orthogonal to one direction located on both sides of the packaged object are sealed to form a pair of sealing seal portions In the pillow packaging body, the packaging material is formed with a pair of first cutting auxiliary lines extending in the other direction at a predetermined interval with respect to the palm seal portion on both sides of the palm seal portion. A pair of second cutting auxiliary lines extending toward the first cutting auxiliary line are formed, and the pair of second cutting auxiliary lines are formed so that one ends thereof coincide or substantially coincide with each other on the palm seal part, The other end is the first cutting aid Respect is formed so as to be non-contact, characterized in that the notches are formed so as to correspond to one end of the second auxiliary cutting line on the rafter seal.

  According to the pillow package of the above configuration, the packaging material is formed on both sides of the joint seal part with a pair of first cutting auxiliary lines extending in the other direction at a predetermined interval with respect to the joint seal part, A pair of second cutting auxiliary lines extending from the joint seal part toward each first cutting auxiliary line is formed, and one end of the pair of second cutting auxiliary lines coincides or substantially coincides with each other on the joint seal part. Since the notch is formed in the joint seal part so as to correspond to one end of the second cutting auxiliary line, when the both sides of the notch in the packaging material (joint seal part) are pulled, the packaging material starts from the notch After being cut along a pair of second cutting auxiliary lines, they are cut along a pair of first cutting auxiliary lines. Then, since the pair of first cutting auxiliary lines are formed at predetermined intervals on both sides of the palm seal part, a large opening corresponding to the interval of the first cutting auxiliary lines is formed in the packaging material. Therefore, by making the interval between the pair of first cutting auxiliary lines correspond to the size of the packaged object to be packaged, an opening corresponding to the size of the packaged object can be formed at the time of opening. Objects can be easily taken out.

  In addition, according to the pillow package of the above configuration, the pair of second cutting auxiliary lines are formed so that the other ends thereof are not in contact with the first cutting auxiliary line, so that the packaging material is not opened when opened. It is possible to reliably prevent cutting in a specific direction.

  Specifically, when the other end side of the second cutting auxiliary line intersects the first cutting auxiliary line, the packaging material may be cut beyond the first cutting auxiliary line, and the second cutting When the other end of the auxiliary line is positioned on the first cutting auxiliary line, when the packaging material is cut to the other end of the second cutting auxiliary line, the force along the second cutting auxiliary line that has been acting by the previous cutting (Cutting moment) may act beyond the position where the first cutting auxiliary line is formed, and the packaging material may be cut beyond the first cutting auxiliary line. Therefore, if the other end side of the second cutting auxiliary line intersects the first cutting auxiliary line, or the other end of the second cutting auxiliary line is located on the first cutting auxiliary line, the cutting position of the packaging material The packaging material may be cut at an unspecified position different from the planned cutting position (first cutting auxiliary line) without switching (cutting direction) to the first cutting auxiliary line.

  However, according to the above configuration, since the second cutting auxiliary line is formed so that the other end is not in contact with the first cutting auxiliary line, the first cutting auxiliary line and the second cutting auxiliary line are Between these cutting auxiliary lines, a portion that is harder to cut the packaging material is formed, and when the packaging material is cut to the other end of the second cutting auxiliary line, it acts by cutting so far The first cutting auxiliary line and the second cutting auxiliary line are cut by acting in a state where the force (moment of cutting) along the second cutting auxiliary line is weakened.

  At this time, since there is no cutting auxiliary line that can be easily cut between the first cutting auxiliary line and the second cutting auxiliary line and directs the cutting direction, the packaging material is cut in an unspecified direction at a short distance. However, as described above, since the momentum of cutting is weakened, when the cutting position reaches the first cutting auxiliary line, the cutting is performed along the first cutting auxiliary line.

  Thereby, a packaging material can be cut | disconnected reliably in a cutting plan position, and the opening suitable for the size of the to-be-packaged object can be formed appropriately and reliably.

  The packaging material for pillow packaging according to the present invention is composed of a bendable strip-shaped resin film, and has a pair of first cutting auxiliary lines extending in the other direction perpendicular to the one direction at intervals in one direction. A pair of second cutting auxiliary lines that are formed and extend from both ends in one direction toward each first cutting auxiliary line are formed, and the pair of second cutting auxiliary lines are connected to each other on both ends of the resin film. Are arranged at symmetrical positions with respect to the center line extending in the other direction, and the other end is formed so as to be in non-contact with the first cutting auxiliary line.

  According to the packaging material for pillow packaging having the above-described structure, it is bent in one direction so as to wrap the article to be packaged, and both ends in one direction are sealed to form a palm seal part, and orthogonal to the one direction. By sealing the portions that overlap each other on both sides of the article to be packaged in the other direction to form a pair of sealing seal portions, a pillow package that packages the article to be packaged is obtained.

  The packaging material is formed with a pair of first cutting auxiliary lines extending in the other direction orthogonal to the one direction with an interval in one direction, and each first cutting auxiliary line from both ends of the one direction. A pair of second auxiliary lines extending toward the line is formed, and the pair of second cutting auxiliary lines are arranged at symmetrical positions with respect to a center line in which one ends on both end edges in one direction extend in the other direction. Therefore, in a state of being a pillow package, the pair of first cutting auxiliary lines extends in the other direction at a predetermined interval with respect to the joint seal part on both sides of the joint seal part. The pair of second cutting auxiliary lines are in a state of extending toward the first cutting auxiliary lines in a state where one ends thereof are matched or substantially matched on the palm seal part. And if a notch is formed in the palm seal part so as to correspond to one end of the second cutting auxiliary line, the pillow package body can be opened from the notch.

  When pulling on both sides of the notch in the packaging material (gap seal part) that has become a pillow packaging body, the packaging material (the packaging material of the pillow packaging body) is cut along the pair of second cutting auxiliary lines starting from the notch. Then, it is cut along a pair of first cutting auxiliary lines. Then, since the pair of first cutting auxiliary lines are formed at predetermined intervals on both sides of the palm seal part, a large opening corresponding to the interval of the first cutting auxiliary lines is formed in the packaging material. Therefore, by making the interval between the pair of first cutting auxiliary lines correspond to the size of the packaged object to be packaged, an opening corresponding to the size of the packaged object can be formed at the time of opening. Objects can be easily taken out.

  Further, according to the packaging material for pillow packaging, the pair of first cutting auxiliary lines are formed so that the other ends thereof are not in contact with the first cutting auxiliary line. When it becomes a body, it can prevent reliably that a packaging material is cut | disconnected in an unspecified direction at the time of opening.

  Specifically, when the other end side of the second cutting auxiliary line intersects the first cutting auxiliary line, the packaging material may be cut beyond the first cutting auxiliary line, and the second cutting When the other end of the auxiliary line is positioned on the first cutting auxiliary line, when the packaging material is cut to the other end of the second cutting auxiliary line, the force along the second cutting auxiliary line that has been acting by the previous cutting (Cutting moment) may act beyond the position where the first cutting auxiliary line is formed, and the packaging material may be cut beyond the first cutting auxiliary line. Therefore, if the other end side of the second cutting auxiliary line intersects the first cutting auxiliary line, or the other end of the second cutting auxiliary line is located on the first cutting auxiliary line, the cutting position of the packaging material The packaging material may be cut at an unspecified position different from the planned cutting position (first cutting auxiliary line) without switching (cutting direction) to the first cutting auxiliary line.

  However, according to the above configuration, since the second cutting auxiliary line is formed so that the other end is not in contact with the first cutting auxiliary line, the first cutting auxiliary line and the second cutting auxiliary line are Between these cutting auxiliary lines, a portion that is harder to cut the packaging material is formed, and when the packaging material is cut to the other end of the second cutting auxiliary line, it acts by cutting so far The first cutting auxiliary line and the second cutting auxiliary line are cut by acting in a state where the force (moment of cutting) along the second cutting auxiliary line is weakened.

  At this time, since there is no cutting auxiliary line that can be easily cut between the first cutting auxiliary line and the second cutting auxiliary line and directs the cutting direction, the packaging material is cut in an unspecified direction at a short distance. However, as described above, since the momentum of cutting is weakened, when the cutting position reaches the first cutting auxiliary line, the cutting is performed along the first cutting auxiliary line.

  Thereby, a packaging material can be cut | disconnected reliably in a cutting plan position, and the opening suitable for the size of the to-be-packaged object can be formed appropriately and reliably.

  As one aspect of the packaging material for pillow packaging according to the present invention, a plurality of pairs of second cutting auxiliary lines are formed at intervals in the other direction. preferable. In this way, the pillow package of the said structure can be produced continuously.

  According to the pillow packaging body and the packaging material for pillow packaging of the present invention, it is possible to achieve an excellent effect that it is possible to form a large opening that can be easily taken out when the package is opened.

The perspective view of the pillow package which concerns on one Embodiment of this invention is shown. It is a packaging material used for pillow packaging of the embodiment, and (a) shows a perspective view of a sheet-like packaging material (a developed state of the packaging material of a pillow packaging body) obtained by cutting the packaging material, and (b) ) Shows a perspective view of a packaging material composed of a long film. The schematic plan view for demonstrating the packaging process at the time of packaging a to-be-packaged material with the packaging material for pillow packaging which concerns on the embodiment is shown. It is explanatory drawing of the opening method of the pillow package which concerns on the same embodiment, Comprising: (a) shows the state which cut | disconnected the part of packaging material in one direction (crease), (b) The state which cut | disconnected a part largely to one direction is shown, (c) shows the state which expanded opening. The perspective view of the pillow package which concerns on other embodiment of this invention is shown. It is explanatory drawing of the opening method of the pillow package which concerns on other embodiment, Comprising: (a) shows the state which cut a part of packaging material in one direction (wrinkled), (b) is a packaging material (C) shows a state in which a part of the packaging material is cut in one direction, and (d) shows a state in which the opening is expanded from the state in (c). A state is shown, (e) shows the state which opened the opening after removing the wrapping packaging material. The perspective view of the pillow package which concerns on another embodiment of this invention is shown. It is a top view of the packaging material for forming the pillow packaging body which concerns on another embodiment of this invention, Comprising: (a) is an aspect with which the 2nd cutting auxiliary line inclined with respect to the 1st cutting auxiliary line. The top view of the formed packaging material is shown, (b) shows the top view of the packaging material in which the 1st cutting auxiliary line was formed in the aspect of the waveform. It is a perspective view of the conventional pillow package, (a) shows the pillow package body in which the notch was formed in the sealing seal part, (b) is the pillow package body in which the notch was formed in the joint seal part. Indicates.

  Hereinafter, a pillow packaging body and a packaging material for pillow packaging according to an embodiment of the present invention will be described with reference to the accompanying drawings.

  As shown in FIG. 1, the pillow package 1 according to the present embodiment includes a packaged object 10 such as food and a packaging material 20 that wraps the packaged object 10.

  The packaging material 20 is composed of a bendable resin film. The packaging material 20 is bent in one direction so as to wrap the article to be packaged 10, and both ends in one direction are sealed to form a palm seal part 21, and on both sides of the article to be packaged 10. The overlapping portions of both end portions in the other direction orthogonal to one direction are sealed to form a pair of sealing seal portions 22 and 22. Further, the packaging material 20 is formed with a notch 23 in a notch shape in the palm seal part 21. Thus, the pillow package 1 can be opened by cutting the packaging material 20 with the notch 23 (actually, the apex of the edge forming an acute angle or an obtuse angle defining the notch 23) as a base point.

  The packaging material 20 of the pillow packaging body 1 according to the present embodiment has a pair of first cutting auxiliary lines 24 and 24 that extend in the other direction at a predetermined interval with respect to the joint seal portion 21 on both sides of the joint seal portion 21. Is formed, and a pair of second cutting auxiliary lines 25, 25 extending from the joint seal portion 21 toward the first cutting auxiliary lines 24, 24 are formed.

  The pair of second cutting auxiliary lines 25, 25 are formed so that one ends thereof coincide or substantially coincide with each other on the palm seal portion 21, and one end of the notch 23 (edge vertex) formed on the palm seal portion 21. It corresponds to. That is, in the pillow package 1 according to this embodiment, the notch 23 is formed in the joint seal portion 21 so as to correspond to one end of the second cutting auxiliary lines 25, 25.

  The first cutting auxiliary lines 24 and 24 and the second cutting auxiliary lines 25 and 25 according to the present embodiment are all formed in a straight line. The first cutting auxiliary lines 24 and 24 and the second cutting auxiliary lines 25 and 25 are only required to be linear, and for example, a plurality of cut lines arranged intermittently so as to form a line (so-called , Perforations), and the packaging material 20 (resin film) having a smaller thickness than the surroundings (original film thickness) (so-called half cut).

  In the present embodiment, the first cutting auxiliary lines 24 and 24 and the second cutting auxiliary lines 25 and 25 are similar in form to conventional well-known half cuts, but have a conventional cutting directionality and ease of cutting. It is a special one that is much improved than the half cut. Specifically, the first cutting auxiliary lines 24 and 24 and the second cutting auxiliary lines 25 and 25 according to the present embodiment make the thickness in the linear region on the packaging material 20 thinner than the original film thickness. In this case, a ridge that is thicker than the original film thickness is formed on both sides of the thinned linear region along the linear region.

  Thereby, in the pillow packaging body 1 (packaging material 20) according to the present embodiment, the strength of the linear thin-walled portion is weaker than the surroundings in the first cutting auxiliary lines 24 and 24 and the second cutting auxiliary lines 25 and 25. On the other hand, the strength of the ridges on both sides of the linear thin-walled portion is higher than that of the surroundings. It is designed not to come off the part.

  Therefore, the pillow packaging body 1 (packaging material 20) according to the present embodiment is smooth and appropriate in a state along any of the first cutting auxiliary lines 24 and 24 and the second cutting auxiliary lines 25 and 25. Can be cut into

  In the pillow packaging body 1 according to the present embodiment, the pair of second cutting auxiliary lines 25 and 25 are formed so that one end thereof overlaps the palm seal part 21 and the other end is the first cutting auxiliary line 24. , 24 is formed in a non-contact manner. That is, the pair of second cutting auxiliary lines 25 and 25 are formed in a state where the other ends are slightly spaced from the first cutting auxiliary lines 24 and 24. And the pillow package 1 which concerns on this embodiment is formed so that each 2nd cutting auxiliary line 25,25 may make a right angle or a substantially right angle with respect to the 1st cutting auxiliary line 24,24.

  In the pillow package 1 according to the present embodiment, gussets 26 and 26 (襠) are formed between both ends of the pair of sealing seal portions 22 and 22, and the thick-walled article 10 and more An amount of the article to be packaged 10 can be accommodated.

  Here, the packaging material (packaging material used as the packaging material 20 of the pillow packaging body 1) used for the pillow packaging body 1 is demonstrated. The packaging material is obtained by developing the packaging material 20 of the pillow package 1. Therefore, in the packaging material, the same name as each configuration of the packaging material 20 is given to the configuration corresponding to the above-described configuration of the packaging material 20 of the pillow packaging body 1. "'" (Dash) is added to the symbol.

  The packaging material is composed of a bendable resin film, and is formed in a rectangular shape in plan view as shown in FIG. 2 (a) or in a band shape as shown in FIG. 2 (b). That is, the packaging material 20 ′ is formed in a rectangular shape in plan view as shown in FIG. 2 (a) when the pillow packaging body 1 is made independently one by one. When the packaging body 1 is made continuously, it is formed in a long band shape as shown in FIG.

  2A and 2B, the packaging material 20 ′ has a pair of first cutting auxiliary lines 24 extending in the other direction perpendicular to the one direction with an interval in one direction. 'And 24' are formed, and a pair of second auxiliary lines extending from both ends in one direction toward the first cutting auxiliary lines 24 'and 24' are formed. The pair of second auxiliary cutting lines 25 ′, 25 ′ are arranged at symmetrical positions with respect to a center line CL whose one ends on both ends in one direction extend in the other direction.

  The first cutting auxiliary lines 24 ′ and 24 ′ and the second cutting auxiliary lines 25 ′ and 25 ′ in the packaging material 20 ′ are formed on the packaging material 20 of the pillow package 1 after completion (after production). The auxiliary lines 24 and 24 and the second cutting auxiliary lines 25 and 25 are in the same form. That is, the first cutting auxiliary lines 24 ′, 24 ′ and the second cutting auxiliary lines 25 ′, 25 ′ need only be linear as described above. For example, a plurality of cut lines form a line. In which the thickness of the packaging material 20 (resin film) is thinner than the surrounding (original film thickness) (so-called half-cut), on the packaging material 20 ′ In the linear regions 26 'and 26', the thickness is made thinner than the original film thickness, and on both sides of the thinned linear regions 26 'and 26', the raised portions are thicker than the original film thickness. Are formed along the linear regions 26 'and 26'. And in this embodiment, 1st cutting auxiliary line 24 ', 24' and 2nd cutting auxiliary line 25 ', 25' are in linear area | region 26 ', 26' on packaging material 20 'as mentioned above. The thickness is made thinner than the original film thickness, and ridges thicker than the original film thickness are formed on both sides of the thinned linear regions 26 'and 26' in the linear regions 26 'and 26'. It has been formed along.

  2 (b) has a pair of second cutting auxiliary lines 25 ′ and 25 ′ spaced apart in the other direction in order to continuously produce a plurality of pillow packages 1. Multiple pairs are formed with a gap

  In the pillow packaging body 1 according to the present embodiment, since a pair of gussets 26 and 26 are formed, the packaging material 20 ′ has regions 26 ′ and 26 ′ for forming the pair of gussets 26 and 26. It is provided at a symmetrical position with respect to a center line CL extending in the other direction (longitudinal direction). Since the gussets 26, 26 are formed in a continuous manner of mountain folds and valley folds, the folding positions L1, L2, L3 (actually, in the regions 26 ', 26' for forming the gussets 26, 26) Although there is no ruled line, it is set as a virtual line for convenience in the figure. The planned folding positions L1, L2, and L3 are portions that become ridge lines when the packaging material 20 ′ is folded (when it becomes the gussets 26 and 26), and in this embodiment, the respective areas that become the gussets 26 and 26. For 26 'and 26', bending positions (planned lines) L1, L2, and L3 extending in the other direction are set at three places (three) spaced in one direction.

  And a pair of area | regions 26 'and 26' used as the gussets 26 and 26 are set so that it may be located between a pair of 1st cutting auxiliary line 24 'and 24'. That is, the packaging material 20 ′ is bent along the planned folding lines L1, L2, and L3, so that a pair of gussets 26 and 26 are formed, and both sides (one direction (short direction)) of each gusset 26 and 26 are formed. Since both sides are folded, first cutting auxiliary lines 24 ′ and 24 ′ are formed in the respective regions to be folded.

  The packaging material 20 ′ according to the present embodiment has the above-described configuration. Next, a packaging process (packaging method) for packaging the article to be packaged 10 using the packaging material 20 ′ will be described. Here, a case where pillow packaging is performed using a long packaging material 20 ′ (packaging with a pillow packaging machine) will be described as an example.

  As shown in FIG. 3, first, the packaging material 20 ′ is conveyed in the longitudinal direction so as to pass the supply position to which the article to be packaged 10 is supplied. At this time, the packaging material 20 ′ is folded back along the planned folding positions (planned lines) L 1 and L 2 so as to form a part of the gussets 26 and 26 at the front stage of the supply position. That is, as described above, the packaging material 20 ′ is located on the inner side in the short direction among the three planned bending lines L 1, L 2, L 3 set in the regions 26 ′, 26 ′ that become the gussets 26, 26. A certain two fold lines L1, L2 (hereinafter, of these two fold lines L1, L2, the innermost fold line L1 is referred to as the first fold line, and the center fold line L2 is the first fold line L2. It is said that it is a second scheduled line.) Thereby, the packaging material 20 ′ is formed in a bowl shape in which a part of the regions 26 ′ and 26 ′ to become the gussets 26 and 26 extends in the longitudinal direction.

  And if each part of area | region 26 ', 26' used as a pair of gussets 26 and 26 is formed in a bowl shape, between the area | regions 26 'and 26' used as a pair of gussets 26 and 26 (packaging material 20) The upper package 10 is to be packaged 10. Thereafter, the packaging material 20 ′ is transported in the longitudinal direction, and the shorter one of the three folding lines L 1, L 2, L 3 set in the regions 26 ′, 26 ′ that become the gussets 26, 26. It is folded at a fold planned line L3 (hereinafter, this fold planned line is referred to as a third planned line) at the outermost side in the direction. Thereby, the area | region which existed in the width direction outer side from the 3rd planned line L3 will be in the state which covered the to-be-packaged object 10. FIG.

  Then, the first planned line L1 and the third planned line L3 are substantially opposed to each other, and a ridge line is formed between the first planned line L1 and the third planned line L3 on the second planned line L2. The folded gussets 26 and 26 are formed. In this state, the pair of first cutting auxiliary lines 24 ′ and 24 ′ are arranged at symmetrical positions with respect to the center line CL extending in the longitudinal direction, and the pair of second cutting auxiliary lines 25 ′ and 25 ′. 'Is also arranged at a symmetrical position with respect to the same center line CL.

  The packaging material 20 ′ is sealed (thermally welded) between the pair of first heat seal bars SB 1 extending in the longitudinal direction while being conveyed in the longitudinal direction, and extends in the longitudinal direction. A palm seal portion 21 'is formed. As a result, the packaging material 20 ′ has an endless annular shape in the lateral direction and surrounds the package 10.

  Thereafter, both sides of the packaging material 10 wrapping the packaging material 10 ′ (portions overlapping each other by folding) are sandwiched between a pair of second heat seal bars SB <b> 2 extending in the short direction and sealed (heat Sealing portions 22 'and 22' extending in the short direction are formed.

  The packaging material 20 ′ is cut along the direction (short direction) in which the sealing seal portions 22 ′ and 22 ′ extend, and the portion separated by the cutting packages the packaging material 10. It becomes. That is, the pillow packaging body 1 in which the packaging material 10 is covered with the packaging material 20 by cutting the packaging material 20 ′ in the lateral direction on the band-shaped sealing seal portions 22 ′ and 22 ′ extending in the lateral direction. Will be separated from the packaging material 20 '. In the above process, at any stage after the joint seal portion 21 ′ is formed, a notch is formed at a position corresponding to the arrangement of the second cutting auxiliary lines 25 ′ and 25 ′ with respect to the joint seal portion 21 ′. A notch 23 'is formed.

  Thus, while conveying the strip-shaped packaging material 20 ′ in the longitudinal direction, the formation of the gussets 26, 26, the packaging of the article 10 to be packaged, the formation of the joint seal portion 21 ′ and the sealing seal portions 22 ′, 22 ′, A plurality of pillow packages 1 are continuously formed by continuously cutting the packaging material 20 ′.

  Next, the opening method of the pillow packaging body 1 having the above-described configuration (the pillow packaging body 1 using the packaging material 20 ′ as the packaging material 20) and the operation at the time of opening will be described.

  First, when both sides of the notch 23 in the packaging material 20 (gap seal portion 21) are pulled, the packaging material 20 has a pair of second cuts starting from the notch 23 as shown in FIGS. 4 (a) to 4 (c). After being cut along the auxiliary lines 25, 25, it is cut along the pair of first cutting auxiliary lines 24, 24. The pillow packaging body 1 according to the present embodiment is formed so that the other ends of the second cutting auxiliary lines 25, 25 are not in contact with the first cutting auxiliary lines 24, 24. Between the lines 24, 24 and the second cutting auxiliary lines 25, 25, a portion that is harder to cut the packaging material 20 than these cutting auxiliary lines is formed, and the packaging material 20 is the second cutting auxiliary line. When cutting to the other end of 25, 25, the force along the second cutting auxiliary line 25, 25 that has been acting by cutting so far (cutting force) acts to weaken the first cutting assist. The line 24, 24 and the second cutting auxiliary line 25, 25 are cut.

  At this time, since there is no cutting auxiliary line between the first cutting auxiliary line 24, 24 and the second cutting auxiliary line 25, 25, and there is no cutting auxiliary line for directing the cutting direction, the packaging material 20 is at a slight distance. Although it is cut in an unspecified direction, since the momentum of cutting is weakened as described above, when the cutting position reaches the first cutting auxiliary lines 24, 24, the first cutting auxiliary line 24 in which no cutting auxiliary line exists. , 24 and the second cutting auxiliary lines 25, 25, the packaging material 20 is cut along the first cutting auxiliary lines 24, 24 that are easier to cut.

  Then, since the pair of first cutting auxiliary lines 24 and 24 are formed at predetermined intervals on both sides of the palm seal portion 21, the packaging material 20 corresponds to the interval between the first cutting auxiliary lines 24 and 24. A large opening is formed. In the pillow packaging body 1 according to this embodiment, the second cutting auxiliary lines 25 and 25 are formed in the vicinity of one end portion in the other direction of the packaging material 20, and accordingly, when opened as described above, the packaging material 20. A large opening is formed from the vicinity of one end to the entire other end. And the to-be-packaged object 10 is taken out from an opening in the state as it is or after expanding the space | interval of the resin film which remained on the opening both sides. Thus, since the pillow package 1 which concerns on this embodiment can form sufficient opening, it is easy to take out the to-be-packaged object 10. FIG. In addition, when the sealing strength of the sealing seal portions 22 and 22 is weak or when they are sealed so as to be peelable, the portion that is excised at the time of opening (the portion between the pair of first cutting auxiliary lines 24 and 24) is opened. Sometimes it may be completely removed.

  As described above, the pillow package 1 and the pillow packaging material 20 ′ according to the present embodiment can efficiently form a large opening when opened, and the packaged article 10 can be easily taken out. It is possible to achieve an excellent effect that it can be performed.

  That is, in the pillow packaging body 1 and the pillow packaging material 20 ′ according to the present embodiment, one end portions of the pair of second auxiliary cutting lines 25, 25, 25 ′, and 25 ′ overlap on the palm seal portion 21. In addition to being formed, the other end is formed so as to be in non-contact with the first cutting auxiliary lines 24, 24, 24 ′, 24 ′, so that the packaging material 20 is cut in an unspecified direction when opened. This can be reliably prevented, and an opening suitable for the size of the article to be packaged 10 can be formed appropriately and reliably.

  In addition, the packaging material (resin film) 20 ′ according to the present embodiment is configured by a strip-like film having a longitudinal direction in the other direction, and a plurality of pairs of second cutting auxiliary lines 25 ′ and 25 ′ are spaced apart in the other direction. Since the pair is formed, the pillow package 1 having the above-described configuration can be continuously produced.

  In addition, this invention is not limited to said each embodiment, In the range which does not deviate from the summary of this invention, it can change suitably.

  In the said embodiment, when the 2nd cutting auxiliary lines 25 and 25 are formed in the one end part vicinity of the other direction in the packaging material 20, and it opens, a big opening can be formed in the whole region of the other end part from the one end vicinity of the packaging material 20. However, the present invention is not limited to this. For example, as shown in FIG. 5, the second auxiliary cutting lines 25 and 25 may be formed at intermediate positions in the other direction. Even if it does in this way, since a pair of 1st cutting auxiliary | assistant line | wires 24 and 24 are formed over the full length of the other direction with respect to the packaging material 20, or substantially full length, in FIG.6 (a) thru | or FIG.6 (d). As shown, one of the two regions divided by the second cutting auxiliary line 25, 25 is cut along the second cutting auxiliary line 25, 25 and the first cutting auxiliary line 24, 24. Then, after turning over the region, the other region may be cut along the first cutting auxiliary lines 24 and 24 to turn up the region, thereby forming a large opening.

  In the above embodiment, the pair of gussets 26 and 26 are formed on the packaging material 20 of the pillow packaging body 1, but the packaging material 20 is not limited to this, for example, as shown in FIG. The gussets 26 and 26 may be simply folded without being formed. In this case, the packaging material 20 ′ does not have to be provided with the regions 26 ′ and 26 ′ for forming the gussets 26 and 26.

  In the packaging material 20 and the packaging material 20 ′ of the above embodiment, the second cutting auxiliary lines 25, 25, 25 ′, 25 ′ are perpendicular to or substantially perpendicular to the first cutting auxiliary lines 24, 24, 24 ′, 24 ′. However, the present invention is not limited to this. For example, as shown in FIG. 8A, the pair of second cutting auxiliary lines 25, 25, 25 ′, and 25 ′ are symmetrical to each other. It may be formed in a manner inclined with respect to the first cutting auxiliary lines 24, 24, 24 ′, 24 ′ on the premise that they are mirror images. That is, as the second cutting auxiliary lines 25, 25, 25 ′, 25 ′ are moved from both ends of the packaging material 20 (packaging material 20 ′) to the first cutting auxiliary lines 24, 24, 24 ′, 24 ′, the other You may form in the aspect inclined so that it might face in any one side of a direction.

  If it does in this way, packaging material 20 'became the packaging material 20 as a result of the space | interval of a pair of 2nd cutting auxiliary line 25, 25, 25', 25 'expanding as it goes to either one side of another direction. Sometimes (when both ends in one direction are sealed to form the palm seal portion 21), the pair of second cutting auxiliary lines 25, 25, 25 ', 25' is in the other direction with reference to the palm seal portion 21. As the distance to the other side increases, the interval increases. Therefore, after cutting the packaging material 20 along the second cutting auxiliary lines 25 and 25 starting from the notch 23, the cutting position of the packaging material 20 is changed to the first cutting auxiliary lines 24 and 24 (second cutting auxiliary lines 25 and 25). Will be smoothly transferred toward the first auxiliary cutting lines 24, 24) that form an obtuse angle, and the opening becomes easier.

  In the said embodiment, although 1st cutting auxiliary line 24,24,24 ', 24' and 2nd cutting auxiliary line 25,25,25 ', 25' were formed in linear form, it is not limited to this. For example, as shown in FIG. 8B, at least one of the first cutting auxiliary lines 24, 24, 24 ′, 24 ′ and the second cutting auxiliary lines 25, 25, 25 ′, 25 ′ (FIG. 8 ( In b), the first cutting auxiliary lines 24, 24, 24 ′, 24 ′) may be formed in a wave shape.

  In the above embodiment, the pillow packaging body 1 is continuously produced using the belt-shaped packaging material 20 ′ on the assumption that a pillow packaging machine is used. However, the present invention is not limited to this. The package 10 may be individually packaged with the leaf-shaped packaging material 20 ′ (see FIG. 2A) to form the pillow package 1. Even in this case, after placing the article to be packaged 10 on the packaging material 20 ′, both ends in one direction of the packaging material 20 ′ are sealed to form the palm seal portion 21, and both ends in the other direction are By sealing, a pair of sealing seal portions 22 and 22 are formed, and a notch 23 is formed on the palm seal portion 21, whereby the pillow package 1 similar to the above embodiment can be obtained.

  DESCRIPTION OF SYMBOLS 1 ... Pillow packaging body, 10 ... Packaged object, 20 ... Packaging material, 20 '... Packaging material, 21 ... Joint sealing part, 22 ... Sealing sealing part, 23 ... Notch, 24 ... First cutting auxiliary line, 25 ... Second cutting auxiliary line, 26 ... gusset, 26 '... area to be gusset, L1 ... first planned line (bending planned position (line)), L2 ... second planned line (bending planned position (line)), L3 ... Third planned line (bending planned position (line)), SB1 ... first heat seal bar, SB2 ... second heat seal bar

Claims (3)

  It is provided with a packaging material composed of a bendable resin film, and the packaging material is bent in one direction so as to wrap the article to be packaged, and both ends in one direction are sealed to form a palm seal part. In addition, in the pillow package body in which the overlapping portions of both end portions in the other direction orthogonal to one direction located on both sides of the packaged object are sealed to form a pair of sealing seal portions, the packaging material is A pair of first cutting auxiliary lines extending in the other direction with a predetermined interval with respect to the palm seal part is formed on both sides of the palm seal part, and extending from the palm seal part toward each first cutting auxiliary line. A pair of second cutting auxiliary lines are formed, and the pair of second cutting auxiliary lines are formed so that one ends thereof are matched or substantially coincided with each other on the palm seal part, and the other end is a first cutting auxiliary line. To be non-contact with Made is, pillow packaging, wherein a notch is formed so as to correspond to one end of the second auxiliary cutting line on the rafter seal.   A pair of first cutting auxiliary lines that are formed of a bendable belt-shaped resin film and extend in the other direction perpendicular to the one direction with an interval in one direction are formed. A pair of second cutting auxiliary lines extending toward one cutting auxiliary line is formed, and the pair of second cutting auxiliary lines is based on a center line in which one ends on both ends of the resin film extend in the other direction. A packaging material for pillow packaging, wherein the packaging material is arranged in a symmetrical position and the other end is in non-contact with the first auxiliary cutting line.   The packaging material for pillow packaging according to claim 2, comprising a plurality of pairs of second cutting auxiliary lines spaced apart in the other direction.

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