Patent Publication Number: US-2022219876-A1

Title: Packaging bag

Description:
TECHNICAL FIELD 
     The present invention relates to a packaging bag. 
     BACKGROUND ART 
     A packaging bag for packaging one or a plurality of film-packaged tissues in which a bundle of tissue paper is packaged with a resin flexible film includes a main unit section in which an article to be packaged is stored, and a handle section provided above the main unit section. 
     In such a packaging bag, a finger hook hole for hooking a finger is formed in the handle section, and a purchaser or the like of the film-packaged tissue can carry the film-packaged tissue stored in the packaging bag by hooking a finger into the finger hook hole. 
     On the other hand, in a packaging bag for packaging a product such as a toilet roll, an opening forming portion for forming an opening port for taking out an article to be packaged is provided on an upper surface or a top surface portion (Patent Literature 1 below), but the opening forming portion for a toilet roll is not necessarily suitable for a film-packaged tissue having a shape and softness different from the toilet roll. 
     In a packaging bag in which a plurality of film-packaged tissues each having flexibility and a substantially rectangular outer shape is collectively formed into assembly packaging, the thickness of the film may be increased and the opening forming portion may not be provided from viewpoints of easily holding the shape at the time of assembly packaging and preventing breakage at the time of transportation. 
     CITATION LIST 
     Patent Literature 
     Patent Literature 1: JP 2004-058654 A 
     SUMMARY OF INVENTION 
     Technical Problem 
     However, when the thickness of the film is increased and the opening forming portion is provided, it is naturally difficult to open the packaging bag. In addition, an opening portion is disordered, an appearance is deteriorated, and a hygienic impression is not given. Furthermore, it is not preferable for a user that contents cannot be easily taken out in the assembly packaging product. 
     Therefore, a main object of the present invention is to provide a packaging bag which is hardly opened erroneously when an article to be packaged is carried, can be easily opened to make it possible to take out contents, and can make an unused article to be packaged simply held and packaged in the packaging bag. 
     Solution to Problem 
     Means for solving the above problems are as follows. 
     A first means is 
     a packaging bag that is a gusset packaging bag including: a main unit section having a front surface, a back surface, and both side surfaces connecting the front surface and the back surface to each other, the main unit section storing an article to be packaged; and 
     a handle section formed on a top side of the main unit section by overlapping the front surface and the back surface with each other, wherein 
     at least one of the front surface and the back surface of the main unit section has an opening forming portion, and 
     the opening forming portion includes: 
     a base point portion formed in a region located above a position corresponding to an uppermost portion of the article to be packaged that is stored in the main unit section and below the handle section; 
     a pair of widening perforated portions having a gradually widening separation distance in a side surface direction from the base point portion toward a bottom side opposite to the top side; and 
     a pair of extending perforated portions continuous with other ends of the widening perforated portions on a base portion side and extending in a top-bottom direction. 
     The second means is 
     the packaging bag according to the first means, wherein the base point portion is a region surrounded by perforations or slits. 
     The third means is 
     the packaging bag according to the first means, wherein a connecting portion between the base point portion and the widening perforated portion is a cut portion. 
     The fourth means is 
     the packaging bag according to the first means, wherein a connecting portion between the widening perforated portion and the extending perforated portion is an easily tearable portion that is more easily torn than another portion in the widening perforated portion and the extending perforated portion. 
     A fifth means is 
     the packaging bag according to the first means, wherein a boundary between the widening perforated portion and the extending perforated portion or the vicinity thereof is located at a position corresponding to an uppermost portion of an article to be packaged that is stored in the main unit section or in the vicinity thereof. 
     The sixth means is 
     the packaging bag according to the first means, wherein the extending perforated portion is in a range of 5 to 20 mm from a side surface. 
     Advantageous Effects of Invention 
     The present invention described above provides a packaging bag which is hardly opened erroneously when an article to be packaged is carried, can be easily opened to make it possible to take out contents, and can make an unused article to be packaged simply held and packaged in the packaging bag. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG. 1  is a front view of a packaging bag according to the present invention. 
         FIG. 2  is a cross-sectional view taken along line B-B in  FIG. 1 . 
         FIG. 3  is a perspective view for explaining an outline of the packaging bag according to the present invention. 
         FIG. 4  is a perspective view for explaining the packaging bag according to the present invention and a film-packaged tissue assembly package using the packaging bag. 
         FIG. 5  is a perspective view for explaining an opening forming portion according to the present invention. 
         FIG. 6  is a perspective view for explaining an opening mode of the packaging bag according to the present invention. 
         FIG. 7  is a perspective view for explaining an example of a film-packaged tissue which is an article to be packaged according to the present invention. 
         FIG. 8  is a perspective view for explaining a structural example of the film-packaged tissue which is the article to be packaged according to the present invention. 
         FIG. 9  is a perspective view for explaining a tissue paper bundle. 
     
    
    
     DESCRIPTION OF EMBODIMENTS 
     Hereinafter, the present invention will be described with reference to  FIGS. 1 to 9  illustrating an embodiment of the present invention. 
     A packaging bag  14  according to the present invention is a gusset packaging bag  14  including: a main unit section  44  having a front surface  46 , a back surface  46 , and both side surfaces  43  and  43  connecting the front surface  46  and the back surface  46  to each other, and storing an article  1  to be packaged; and a handle section  45  formed on a top side of the main unit section  44  by overlapping the front surface  46  and the back surface  46 . Note that hereinafter, a film-packaged tissue  1  will be mainly described as an example of an article to be packaged, but the article to be packaged is not necessarily limited to the film-packaged tissue. For example, a product obtained by film-packaging a bundle of domestic thin sheets, such as a film packaged paper towel, can be used. 
     The main unit section  44  includes a bag-shaped space, and is closed with bonding portions  41  and  42  bonded by thermal fusion or the like on top and bottom sides in a state where the article  1  to be packaged is contained. For example, as particularly illustrated in  FIGS. 2 and 3 , in the gusset packaging bag  14 , in a portion on a top surface side in a state where the side surfaces  43  and  43  are folded into the bag inner side and flattened, the front surface  46  and the back surface  46  are thermally fused to seal an opening on the top surface side as a top surface side sealing portion  41 , the top surface side with respect to the top surface side sealing portion  41  is formed as the handle section  45 , then a bottom surface side opening  40 X of the gusset packaging bag  14  in a state where only the top surface side is sealed is expanded, an article to be packaged (in the illustrated mode, the film-packaged tissues  1 ,  1 , . . . ) is inserted therefrom, and then the bottom surface side is also sealed by an appropriate sealing means such as thermal fusion to form a lower sealing portion  42 . 
     The gusset packaging bag  14  has the side surfaces  43  and  43 , which are portions folded in a flat state and are also referred to as gussets or gusset portions, and surfaces connected to the side surfaces  43 . Two surfaces connected to the side surfaces  43  and  43  are the front surface  46  and the back surface  46 . Note that the front surface  46  and the back surface  46  are relative to each other, and which surface is defined as the front surface is not limited. 
     The handle section  45  is a portion located on the top surface side with respect to the top surface side sealing portion  41  serving as a top surface side boundary with the main unit section  44  containing the film-packaged tissue  1  as an article to be packaged in order to enhance portability in a state where the film-packaged tissues  1 ,  1 , . . . are contained. A finger hook hole  47  is preferably formed in the handle section  44 . By forming the finger hook hole  47  in the handle section  45  in this manner, portability of the article to be packaged is enhanced. Note that the shape of the finger hook hole  47  is not limited to the illustrated mode, and a known mode can be adopted. 
     It is desirable that a gusset packaging film constituting the gusset packaging bag  14  is a polypropylene film or a polyethylene film from viewpoints of cost and an opening property. The film preferably has a melting point of 150° C. or lower. Note that a lower melting point of the packaging film makes a thermal fusion treatment possible at a lower temperature, and is more preferable in sealing and forming the handle section  45 . However, when the melting point is excessively low, the packaging film is more likely to be scratched or a hole is more likely to be formed in the packaging film particularly due to friction or the like with the article  1  to be packaged. Therefore, a substantial lower limit is 80° C. Examples of the polyethylene film include a linear low-density polyethylene film (LLDPE), a low-density polyethylene film (LDPE), and a medium-density polyethylene film (MDPE). Among these films, in the present invention, a linear low-density polyethylene film layer (LLDPE) having a density of 0.910 to 0.940 g/cm 3  and a melting point of 110 to 120° C. is particularly suitable from viewpoints of thermal fusibility and cost. In addition, a single-layer film of a polyethylene terephthalate film, a nylon film, a polyvinylidene chloride film, or an ethylene vinyl alcohol copolymer, a laminate film obtained by appropriately stacking these films, or a gas barrier film obtained by subjecting any of these films to a surface treatment such as aluminum vapor deposition may be used. A biomass film derived from a plant raw material such as sugar cane, potato (starch), or corn can also be used. It is also desirable to use a biomass film for the gusset packaging film from a viewpoint of environmental protection. 
     The thickness of the gusset packaging film constituting the gusset packaging bag  14  is appropriately selected in consideration of a relationship with the contained article  1  to be packaged in addition to circumstances peculiar to gusset packaging. The circumstances peculiar to gusset packaging includes tearability that makes opening easy at the time of opening, abrasion resistance to the contained article to be packaged, and flexibility that prevents application of an excessive load to a finger when the gusset packaging bag  14  is carried with a finger through the finger hook hole  47  formed in the handle section  45  in addition to flexibility, cost, and thermal fusibility at the time of packaging. 
     From such a point, as for the preferable thickness and softness of the gusset packaging film, a thickness measured in conform with JIS P 8118 (1998) is 10 to 65 μm, and a softness measured in conform with a handle-o-meter method in accordance with JIS L 1096 (2010) E method is 5.0 to 50.0 cN. 
     The packaging bag  14  according to the present invention has a characteristic opening forming portion  5  that makes it difficult to erroneously open the packaging bag  14  when the article  1  to be packaged is carried by holding the handle section  45 , makes it possible to take out the article  1  to be packaged by easily opening the packaging bag  14 , and can simply make the unused article  1  to be packaged held and packaged in the packaging bag. The opening forming portion  5  is formed on at least one of the front surface  46  and the back surface  46  of the main unit section  44 . 
     The opening forming portion  5  according to the present invention has a base point portion  51  formed in a region located above a position P corresponding to an uppermost portion of the article  1  to be packaged that is stored in the main unit section  44  and below the handle section  45 , a pair of widening perforated portions  52  and  52  having a gradually widening separation distance in a side surface direction from the base point portion  51  toward a bottom side opposite to the top side, and a pair of extending perforated portions  53  and  53  extending from the widening perforated portions  52  and  52  in a top-bottom direction. 
     An opening  50  having an openable and closable lid-like edge piece  55  is formed on at least one of the front surface  46  and the back surface  46  by sequentially tearing the widening perforated portions  52  and the extending perforated portions  53  from the base point portion  51 . 
     The base point portion  51  is a portion serving as a starting point of tearing of the perforated portions  52  and  53 , and is, for example, in a range surrounded by perforations or slits in which the packaging film is easily torn by being pushed with a human finger, and a small edge piece  56  that can be picked is formed. The small edge piece  56  may be a small edge piece cut so as to be picked in advance instead of the small edge piece that is torn by being pushed with a human finger. The shape of the small edge piece  56  is not particularly limited, but is a substantially circular shape, a substantially quadrangular shape, or the like. In such a base point portion  51 , for example, only by pushing an index finger therein, then picking the small edge piece  56  with the index finger and a thumb, and pulling the small edge piece  56  toward a bottom side, the widening perforated portions  52  and the extending perforated portions  53  are continuously torn, and an opening can be easily formed. 
     The base point portion  51  is in a central portion, preferably at a center, of the back surface  46  or the front surface  46  in the direction to the both sides. It is desirable that the base point portion  51  is at a position 5 to 15 mm away from a lower edge of the handle section  45 , that is, a lower edge of the top surface side sealing portion  41 . In the handle section  45 , the gusset packaging film is bonded by thermal fusion or the like and the rigidity is increased, and therefore when the base point portion  51  is set to a range of 5 to 15 mm close to the handle section  45  and is pushed with a finger, the gusset packaging film is not excessively stretched and is pushed in, and an opening base point can be easily formed. 
     As particularly illustrated in  FIG. 5 , preferable examples of the base point portion  51  include a slit and a perforation in which a tie portion (non-cut portion) is formed at least at a portion closest to a top surface. The lengths of the cut portion and the tie portion in a case of forming a perforation are not particularly limited, but it is desirable that the cut portion has a length of 0.1 to 15 mm and the tie portion has a length of 0.1 to 15 mm. The perforations are easily torn continuously. 
     The widening perforated portions  52  and  52  are formed in a pair, and each of the widening perforated portions  52  is continuous with the base point portion  51  with the base point portion  51  as a starting point, and is formed such that a separation distance between the widening perforated portions  52  gradually widens in a side surface direction from the base point portion  51  toward a bottom side opposite to the top side. For example, perforations are formed so as to draw a substantially inversed V-shape from the base point portion  51  toward a bottom surface. Each of the widening perforated portions  52  may be linear or curved, but it is desirable that each of the widening perforated portions  52  is a straight line in which perforations are easily torn continuously. Note that the pair of widening perforated portions  52  and  52  do not need to be arranged symmetrically with respect to a direction along the top-bottom direction, but it is desirable that the pair of widening perforated portions  52  and  52  are both straight lines and arranged symmetrically with respect to the direction along the top-bottom direction. When the small edge piece of the base point portion  51  is picked and pulled, a force is symmetrically applied to the widening perforated portions  52  and  52 , and the pair of widening perforated portions  52  and  52  is easily torn continuously similarly. 
     The perforations in the widening perforated portions  52  and  52  are torn continuously from the base point portion  51  to form an opening widening from the top side toward the bottom side in a substantially inverted V-shape. 
     In addition, it is desirable that the widening perforated portions  52  and  52  extend from the base point portion  51  to a point located at a distance of 40 to 60 mm on the packaging film from the top surface side sealing portion  41  serving as a lower edge of the handle section  45  to the bottom side and 5 to 20 mm from a boundary position E between the front surface  46  or the back surface  46  and the side surface  43  to a center side in a width direction. Such widening perforated portions  52  and  52  are easily torn continuously. 
     For example, in a case where the article to be packaged has a substantially rectangular parallelepiped shape like the film-packaged tissue  1  and the articles to be packaged are stacked as in the illustrated example, it is desirable that the separation distance L 1  between bottom-side ends of the pair of widening perforated portions  52  and  52  is more than 90% and 98% or less of a length (width) L 2  of the article  1  to be packaged. With such an opening, the article  1  to be packaged can be more easily taken out. In particular, when the article  1  to be packaged is a slightly deformable and flexible film-packaged tissue, the article  1  to be packaged can be easily taken out. 
     The lengths of the cut portion and the tie portion in a perforation in the widening perforated portion  52  are not particularly limited, but it is desirable that the cut portion has a length of 0.1 to 15 mm and the tie portion has a length of 0.1 to 15 mm. The perforations are easily torn continuously. 
     The extending perforated portions  53  and  53  are formed so as to be continuous with the bottom-side ends of the widening perforated portions  52  and  52  and extend from the bottom-side ends in the top-bottom direction. Therefore, the extending perforated portions  53  and  53  are also formed in a pair similarly to the widening perforated portions  52  and  52 . It is desirable that a distance between the pair of extending perforated portions  53  and  53  is constant as in the illustrated mode, but may widen or narrow toward the bottom side within a range not affecting a take-out property of a packaging object. In addition, the pair of extending perforations  53  and  53  does not necessarily have the same length as each other. It is desirable that the extending perforated portions  53  and  53  are also arranged linearly like the widening perforated portions  52  and  52 . It is desirable that the extending perforated portions  53  and  53  are at desirable bottom side positions of the widening perforated portions  52  and  52 , that is, in a range of 5 to 20 mm from the side surface  43 . A wider opening is formed by the extending perforations  53  and  53 , and the article  1  to be packaged can be easily taken out. 
     The positions of the bottom-side ends of the extending perforated portions  53  and  53  are not necessarily limited. However, when the extending perforated portion is arranged up to a bottom of the gusset packaging bag, a wide opening is formed, and a take-out property is favorable, but the gusset packaging bag is more likely to be erroneously opened when being carried or displayed. In addition, when an excessively wide opening is formed, an unused film-packaged tissue is more likely to come out of the opening unintentionally. Therefore, the position of the extending perforated portion on the bottom side is appropriately determined in consideration of an opening property and a storage property. The position of the extending perforated portion on the bottom side is preferably designed such that about one or two film-packaged tissues are easily taken out. 
     More specifically, in a case where the article  1  to be packaged has a substantially rectangular parallelepiped shape like the film-packaged tissue and the articles  1  to be packaged are stacked as in the illustrated example, it is desirable that the length of the extending perforated portion  53  in the top-bottom direction is 95 to 110% of a length L 4  of the article  1  to be packaged in the top-bottom direction. The article  1  to be packaged is easily taken out. In addition, in consideration of the general size of the film-packaged tissue, it is desirable that a specific length L 3  of each of the extending perforated portions  53  and  53  in the top-bottom direction is 35 to 55 mm. 
     In the opening forming portion  5  configured in this manner, the widening perforated portions  52  and  52  and the extending perforated portions  53  and  53  are easily torn sequentially from the base point portion  51 , and the opening  50  is easily formed. On the other hand, the base point portion  51  is in a region located above the position P corresponding to an uppermost portion of the article  1  to be packaged that is stored in the main unit section  44  and below the handle section  45 . Therefore, in a case where the handle section  45  is gripped and lifted when the article  1  to be packaged is carried or in a state where the article  1  to be packaged is lifted, the base point portion  51  is hardly rubbed against the contained article  1  to be packaged. In addition, when the central portion of the handle section  45  in a width direction is gripped by hand, the gusset packaging film is pulled in a direction substantially along the extending direction of the widening perforated portions  52  and  52 . Therefore, the widening perforated portions  52  are hardly torn unintentionally. As described above, in the packaging bag  14  according to the present invention, the packaging bag  14  is hardly opened erroneously when the article  1  to be packaged is carried, and the packaging bag  14  can be easily opened to take out the article  1  to be packaged. 
     Furthermore, in the opening forming portion  5  according to the present invention, when the widening perforated portions  52  and  52  and the extending perforated portions  53  and  53  are torn, a top side portion with respect to bottom-side ends of the extending perforated portions  53  and  53  is present as a free lid-like edge piece  56 . For this reason, for example, after some of the contained articles  1  to be packaged are taken out for use, by placing the lid-like edge piece  56  on remaining unused articles to be packaged, and further placing a part of the packaging bag  14  on a top side with respect to an uppermost position of the unused articles  1  to be packaged remaining in the bag on the lid-like edge piece  56 , the unused articles  1  to be packaged can be simply held and packaged in the packaging bag. 
     Here, in the opening forming portion  5  according to the present invention, in particular, it is desirable that a connecting portion  61  between the base point portion  51  and the widening perforated portion  52  is a cut portion. The perforations are smoothly torn from the base point portion  51  to the widening perforated portion  52 . 
     Furthermore, in the opening  50  according to the present invention, in particular, it is desirable that connecting portions  62  between the widening perforated portions  52  and  52  and the extending perforated portions  53  and  53  are easily tearable portions that are more easily torn than another portion of the widening perforated portions  52  and the extending perforated portions  53 . Since the widening perforated portions  52  and the extending perforated portions  53  extend in different directions, when the widening perforated portions  52  and the extending perforated portions  53  are sequentially torn from the base point portion  51 , a perforation tearing direction changes at the connecting portions  62  between the widening perforated portions  52  and the extending perforated portions  53 . Therefore, when the connecting portions  62  between the widening perforated portions  52  and the extending perforated portions  53  are easily tearable portions that are more easily torn than another portion, tearing of the perforations smoothly proceeds from the widening perforated portions  52  to the extending perforated portions  53 . The easily tearable portion  62  can be, for example, a portion in which the connecting portion  62  is formed of only a cut portion or a portion in which the length of a cut portion of the perforation is longer than that in another portion. 
     In addition, in the packaging bag  14  according to the present invention, it is desirable that a boundary between the widening perforated portion  52  and the extending perforated portion  53  or the vicinity thereof is located at the position P corresponding to an uppermost portion of the article  1  to be packaged that is stored in the main unit section or in the vicinity thereof. When the article  1  to be packaged is carried, the widening perforated portion  52  is hardly torn unintentionally. On the other hand, a wide opening is formed by the extending perforated portion  53  from the vicinity of the uppermost portion position P toward the bottom side, and therefore the article  1  to be packaged is easily taken out. 
     Here, as in the illustrated example, the packaging bag  14  of the present invention is suitable for forming the film-packaged tissue  1  obtained by packaging the bundle  3  obtained by folding and stacking a plurality of sets of tissue paper  2  with the flexible packaging film  4  into an article to be packaged, and particularly arranging and gusset-packaging a plurality of the film-packaged tissues  1  to form a film-packaged tissue assembly package  10  (hereinafter, also referred to as an assembly package). Such an assembly package  10  is also proposed as the present invention. Note that the film-packaged tissue  1  here is not a portable one called a pocket tissue, but is the film-packaged tissue  1  used as a stationary type having a mass heavier than that of such a portable one. 
     For the film-packaged tissue  1  suitable as the article  1  to be packaged, the bundle  3  may be overlap-packaged or pillow-packaged. Particularly as illustrated in  FIGS. 7 and 8 , the overlap packaging is a packaging mode also referred to as caramel packaging or combined packaging, and is a packaging mode in which the bundle  3  is packaged with the packaging film  4  so as to be wrapped in a tubular shape such that openings  4 Z are formed at both ends in a longitudinal direction, a portion  4 X overlapping in the wrapping direction is bonded by a fusion treatment or an adhesive, a portion  4 Y extending beyond the bundle  3  is folded toward an end surface side of the bundle  3  from the vicinity of two opposing edges of a bundle end surface, at least tip edges of substantially triangular or substantially trapezoidal pieces formed at this time are overlapped and bonded by a fusion treatment or an adhesive to seal a tube opening  4 Z, thus forming an end surface  4 A. 
     In this overlap packaging, since the end surface  4 A has a substantially planar shape, particularly an exterior of the packaging film  4  has a substantially rectangular parallelepiped shape close to a box. In addition, the end surface  4 A is formed by stacking and bonding a plurality of layers of the packaging film  4 , and therefore has high rigidity, is hardly crushed, and easily maintains a substantially rectangular parallelepiped shape. Therefore, when the film-packaged tissue  1  is stored as the article  1  to be packaged in the packaging bag  14  according to the present invention, the shape of the packaging bag is easily stabilized, the film-packaged tissue  1  is excellent in portability, the film-packaged tissue  1  is hardly moved unintentionally in the packaging bag  14 , and the effect of the packaging bag according to the present invention is easily exhibited. 
     When the film-packaged tissue  1  is used as the article  1  to be packaged, as an arrangement mode in the gusset packaging bag  14 , it is desirable that the film-packaged tissues  1  are stacked such that upper and bottom surfaces of the film-packaged tissues  1  butt against each other as in the illustrated mode. The plurality of film-packaged tissues  1 ,  1 , . . . are arranged so as to form a substantially rectangular parallelepiped as a whole, stability and shape retention are enhanced as a whole of the assembly, and the plurality of film-packaged tissues  1 ,  1 , . . . is hardly collapsed or crushed by an external force, and the effect of the packaging bag according to the present invention is more easily exhibited. 
     Here, particularly in this case, it is desirable that the softness of the gusset packaging film constituting the gusset packaging bag  14  is lower than the softness of the packaging film  4  constituting the film-packaged tissue  1 . In the gusset packaging bag  14  having the handle section  45  on the top surface side, when the handle section  45  is held, the gusset packaging bag  14  is pulled in the top-bottom direction. Therefore, pressure may be applied to the film-packaged tissues  1 ,  1  . . . , which is an article to be contained at this time. However, by lowering the softness of the gusset packaging film  14 , the rectangular parallelepiped shape of the contained film-packaged tissue  1  is hardly deformed, and fullness is hardly reduced without pressing the bundle  3  inside. 
     The bundle  3  of tissue paper contained in the film-packaged tissue  1  is not particularly limited, but it is desirable that the bundle  3  is a pop-up type as illustrated in  FIG. 9 . The pop-up type bundle  3  is obtained by folding a sheet of the tissue paper  2  having a substantially rectangular shape of about 197±10 mm in length×217±10 mm in width in half, and stacking a plurality of folded sheets of the tissue paper  2  such that folded pieces  2 B of other sheets of the tissue paper  2  located above and below the folded sheet are located in an inner side  2 A of the folded sheet. When one folded piece of an uppermost sheet is lifted upward, a folded piece  2 B of another sheet adjacent to the lifted sheet immediately below the lifted sheet is dragged upward and lifted. Such a bundle  3  can be manufactured by a known multi-stand type or rotary type interfolder. 
     The pop-up type bundle  3  has a substantially rectangular parallelepiped shape having a pair of longitudinal side surfaces  3 B in which folded edges  2 C of sheets of the tissue paper  2  are lined up, a pair of short side surfaces  3 A in which the folded edges  2 C are not lined up, and a pair of flat surfaces (upper and lower surfaces)  3 C connected to the short side surfaces  3 A and the longitudinal side surfaces  3 B. The number of sets of the tissue paper  2  constituting the bundle  3  is not limited, but is generally 120 to 240 as one set of 2 plies (two sheets stacked) or 3 plies (three sheets stacked). The size of the bundle  3  is not necessarily limited, but a bundle of 150 sets of 2-ply tissue paper has a height of about 40 to 50 mm×160 to 200 mm in a longitudinal direction (width)×90 to 110 mm in a short direction (depth). 
     Note that the top-bottom direction and the up-down direction in the present invention and the present specification are appropriately changed depending on the directions of the packaging bag, the film-packaged tissue assembly package, and the film-packaged tissue, and do not mean absolute directions. 
     REFERENCE SIGNS LIST 
     
         
           14  Gusset packaging bag 
           43  Side surface (gusset portion) 
           44  Main unit section 
           45  Handle section 
           46  Front surface, Back surface 
           41  Top surface side sealing portion 
           42  Bottom surface side sealing portion 
           40 E Side portion of gusset packaging film in gusset tube mode 
           40 X Bottom surface side opening 
           47  Finger hook hole 
           5  Opening forming portion 
           50  Opening portion 
           51  Base point portion 
           52  Widening perforated portion 
           53  Extending perforated portion 
           55  Lid-like edge piece 
           56  Small edge piece 
           61  Connecting portion between base point portion and widening perforated portion 
           61  Connecting portion between widening perforated portion and extending perforated portion 
         P Position corresponding to uppermost portion of article to be packaged 
         E Boundary position between front surface or back surface and side surface 
         L 1  Separation distance between bottom-side ends of widening perforated portions 
         L 2  Length of article to be packaged in width direction 
         L 3  Length of extending perforated portion in top-bottom direction 
         L 4  Length of packaging object in height direction 
           1  Packaging article (film-packaged tissue) 
           2  Tissue paper 
           2 A Inner side of folded sheet 
           2 B Folded piece 
           2 C Folded edge 
           3  Bundle of tissue paper 
           3 A Short side surface 
           3 B Longitudinal side surface 
           3 C Upper and lower surfaces of bundle 
           4  Packaging film 
           4 X Overlapping portion of packaging film 
           4 Y Extending portion of packaging film 
           4 Z Barrel opening of packaging film 
           4 A End surface 
           10  Film-packaged tissue assembly package.