JP2018127268A - Packing material and package - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stable and self-standing packing material that can improve the convenience.SOLUTION: A packing material 10 has a platform material 11 which has a front board 14 with an opening 14a and a back board 13 connected with the front board 14 via a first folding line 17a, and a heat-shrinkable film 12 adhered on the back board 13 via an adhesive 16. A width L1 of the lower end of the front board 14 is wider than a width L3 of the lower end of the back board 13.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a packaging material and a package.

  A conventional packaging material is disclosed in Patent Document 1. This packaging material includes a base material and a heat shrink film. The base material has a front plate having an opening and a back plate superimposed on the front plate, and is formed in a plate shape. A through hole is provided in the upper part of the base material. The heat-shrink film is formed in a cylindrical shape, and is bonded to the back plate through an adhesive provided on the back plate so as to face the opening.

  When an article to be packaged is inserted into a heat-shrinkable film and the packaging material is heated, the heat-shrinkable film is heat-shrinked and the article to be packaged is covered with the heat-shrinkable film. Thereby, the package which packaged the to-be packaged object with the packaging material is formed. The package is displayed in a store or the like by inserting a display rod through the through hole and suspending it.

JP-A-2015-217947 (7th page, 8th page, FIG. 7 and FIG. 8)

  However, according to the conventional packaging material, since the base material has a plate shape, there is a problem that the stability of the packaging body is low and the convenience of the packaging body is poor when the packaging body is displayed or stored by itself.

  An object of this invention is to provide the package which can improve the convenience, and the packaging material used therewith in view of the said problem.

  To achieve the above object, the packaging material of the present invention comprises a base plate having a front plate having an opening, a back plate connected to the front plate via a first fold line, and the back plate. In the packaging material provided with the heat-shrinkable film bonded through the adhesive, the width of the lower end of the front plate is larger than the width of the lower end of the back plate.

  In the packaging material having the above-described configuration, the width of the lower end of the front plate is preferably larger than the width of the upper end of the front plate.

  In the packaging material having the above-described configuration, it is preferable that the lower end of the front plate bends downward in a convex manner.

  In the packaging material having the above-described configuration, it is preferable that the lower end of the heat shrink film is disposed below the lower end of the back plate.

  Moreover, it is preferable that this invention is provided with the protrusion piece which protrudes from the periphery of the upper part of the said opening part in the packaging material of the said structure.

  Moreover, this invention is a packaging material of the said structure, It is preferable to provide a 2nd fold line in the base side of the said protrusion piece.

  According to the present invention, in the packaging material having the above-described configuration, it is preferable that the protruding piece is disposed above a perpendicular perpendicular to the first fold line through the upper end of the adhesive.

  In order to achieve the above object, the packaging body of the present invention includes a base plate having a front plate having an opening and a back plate facing the front plate, and heat bonded to the back plate via an adhesive. In a package including a shrink film and a package to be covered with the heat shrink film, an upper portion of the package projects forward from the opening, and a lower end of the front plate curves forward. The article to be packaged below the opening is disposed between the front plate and the back plate.

  In the packaging body configured as described above, it is preferable that the back plate is formed in a substantially flat surface.

  In the packaging body configured as described above, the curvature radius of the lower end of the front plate is preferably smaller than the curvature radius of the upper end of the front plate.

  Moreover, the present invention preferably includes a protruding piece that protrudes from a peripheral edge of the opening and presses an upper portion of the packaged object forward.

  In the packaging body configured as described above, it is preferable that the upper end of the adhesive is disposed below the protruding piece.

  In the packaging body configured as described above, it is preferable that a lower end of the heat shrink film is disposed below a lower end of the opening.

  In the packaging body configured as described above, it is preferable that a gap is formed between the article to be packaged and the front plate below the opening.

  According to the packaging material of the present invention, the package can be made stable and independent, and the convenience of the package can be improved.

  Moreover, according to the package of this invention, a package can be made to become independent independently and the convenience of a package can be improved.

The perspective view of the package which concerns on 1st Embodiment of this invention. Side surface sectional drawing of the package which concerns on 1st Embodiment of this invention. The top view of the package which concerns on 1st Embodiment of this invention. The bottom view of the package which concerns on 1st Embodiment of this invention. The expanded view of the packaging material which concerns on 1st Embodiment of this invention. The expanded view of the packaging material which concerns on 2nd Embodiment of this invention. Side surface sectional drawing of the package which concerns on 3rd Embodiment of this invention.

<First Embodiment>
A first embodiment of the present invention will be described below with reference to the drawings. 1 and 2 show a perspective view and a side cross-sectional view of the packaging body 1 according to the first embodiment. 3 and 4 show a top view and a bottom view of the package 1.

  The package 1 includes a base material 11, a heat shrink film 12, and an article to be packaged 20. The base material 11 has a cylindrical body part 11a having an open top and bottom surface, and an object to be packaged 20 that is covered in close contact with the heat shrink film 12 is disposed inside the body part 11a.

  The body portion 11a is formed by continuously connecting a back plate 13, a front plate 14, and an extending plate 15 in the horizontal direction. By inserting the insertion piece 15a (see FIG. 5) provided on the extension plate 15 into the slit 13a (see FIG. 5) provided on the back plate 13, the body 11a is formed in a cylindrical shape.

  An opening 14a is opened at the center of the front plate 14, and the upper part of the article to be packaged 20 projects forward from the opening 14a. On the other hand, the lower part of the article to be packaged 20 is disposed between the front plate 14 and the back plate 13. The heat shrink film 12 is bonded onto the back plate 13 via an adhesive 16.

  The front plate 14 is convexly curved forward, and the back plate 13 is formed in a substantially flat surface. Thereby, the lower end of the trunk | drum 11a contact | abuts to an installation surface, and the packaging body 1 can be made to stand by itself stably.

  The curvature radius of the lower end of the front plate 14 is smaller than the curvature radius of the upper end, and the front plate 14 is inclined in a direction approaching the rear plate 13 upward. Thereby, the upper part of the to-be-packaged object 20 protrudes more forward from the opening part 14a, and the visibility of the to-be-packaged object 20 can be improved.

  Moreover, the protrusion piece 14b protrudes in the periphery of the upper part of the opening part 14a, and the protrusion piece 14b is pressing the upper part of the to-be-packaged object 20 ahead. At this time, the upper part of the front plate 14 is weighted to the back plate 13 side by the reaction from the article 20 to be packaged, and the article 20 can be protruded further forward from the opening 14a.

  In addition, the fold line 18 (refer FIG. 5) mentioned later is provided in the base of the opening part 14a. By providing the fold line 18, the protruding piece 14 b can be easily pushed into the rear (back side) of the upper portion of the packaged object 20. Thereby, even if the protrusion amount of the protrusion piece 14b is enlarged, the fall of the folding workability | operativity of the protrusion piece 14b can be reduced. Further, instead of the folding line 18, a folding means such as a ruled line, a perforation, a half cut or the like may be provided.

  Further, the folding means such as the folding line 18 may be omitted. In this case, the force by which the protruding piece 14b presses the upper portion of the packaged object 20 forward increases, and the packaged object 20 can be protruded further forward from the opening 14a.

  The adhesive 16 is a joining means for bringing the base 11 and the heat shrink film 12 into a joined state. In addition, the adhesive 16 may be a separate member from the base 11 and the heat shrink film 12, or may be one incorporated in the base 11 and the heat shrink film 12.

  Examples of the adhesive 16 separate from the base material 11 and the heat-shrinkable film 12 include double-sided tape, hot melt, UV (ultraviolet) curable resin, and adhesive.

  Moreover, as the adhesive 16 incorporated in the base material 11 and the heat shrink film 12, for example, it is preliminarily applied to the entire surface of the base material 11 that contacts the heat shrink film 12 or a part of the planned adhesion region. And a pressure sensitive adhesive layer, a heat sensitive adhesive layer (heat sealant layer) and the like.

  Furthermore, the upper end of the adhesive 16 is disposed below the protruding piece 14 b, and the upper portion of the packaged object 20 is not bonded to the back plate 13. Thereby, the upper part of the article 20 to be packaged is separated from the back plate 13 and pushed forward by the protruding piece 14b. For this reason, it is possible to prevent the back plate 13 from being pulled forward together with the packaged object 20 and the back plate 13 from being bent forward.

  Further, the peripheral edge of the lower end of the opening 14 a is in contact with the peripheral surface of the packaged object 20, and the packaged object 20 is sandwiched between the front plate 14 and the back plate 13. Thereby, the to-be-packaged object 20 is stably hold | maintained inside the trunk | drum 11a.

  A printed layer is provided on the outer surface of the base material 11, and a description of the package 20 is printed on the back plate 13 and the extension plate 15 that form the back surface of the package 1. The back plate 13 is formed in a substantially flat surface, and the extended plate 15 that overlaps one side portion of the back plate 13 is also formed in a substantially flat surface. For this reason, even if it prints a character in the wide range over the right-and-left end of the back surface of the package 1, a character can be visually recognized easily.

  Further, it is preferable that the extended plate 15 covers a region narrower than 1/3 of the back plate 13. Thereby, the level | step difference D formed in the boundary of the backplate 13 and the extension board 15 is distribute | arranged to the side end side of the package 1, and the space which describes a character in the backplate 13 can be provided largely.

  The heat shrink film 12 has a cylindrical shape, and covers the outer peripheral portions of the top surface and the bottom surface of the article to be packaged 20 by heat shrink. Thereby, the packaged object 20 can be stably held by the heat shrink film 12.

  Further, in the state of the packaging material 10 described later (see FIG. 5), the heat shrink film 12 is cylindrical and flat, and is fixed to the substantially central portion of the back plate 15 via an adhesive 16. The position of the heat shrink film 12 fixed on the back plate 15 (left and right direction in FIG. 1) can be appropriately set in consideration of the design and the like, and is not necessarily limited to the substantially central portion. Moreover, the shape of the heat shrink film 12 can be appropriately set according to the shape of the article to be packaged 20 and is not necessarily limited to a cylindrical shape and a flat shape.

  Further, the heat shrink film 12 is provided with a heat shrink film opening means composed of two sewing wires 12a extending in the vertical direction. The upper end of the sewing machine wire 12a is arranged in front of the opening 14a, and the heat shrinkable film 12 can be broken from the upper end of the sewing machine wire 12a to easily take out the packaging object 20.

  The heat shrink film opening means may be three or more sewing wires 12a or one sewing wire 12a. When a plurality of sewing lines 12a are provided, the interval between adjacent sewing lines 12a can be set as appropriate. Further, the position of the sewing machine line 12a can be appropriately set as long as it is a portion protruding forward from the opening 14a of the article 20 as shown in FIG.

  Specific examples of the resin film constituting the heat-shrinkable film 12 include films made of polyolefin resins such as polyethylene and polypropylene, polyester resins such as polyethylene terephthalate and polybutylene terephthalate, polystyrene resins, and vinyl resins.

  FIG. 5 shows a development view of the packaging material 10 in which the base material 11 and the heat shrink film 12 are integrated. The packaging material 10 is formed by adhering a cylindrical heat-shrink film 12 to a flat base material 11 before assembly. The base material 11 is made of a paper base material having a predetermined basis weight, and is formed by punching a sheet of paperboard such as a Manila ball, cardboard, card paper, or craft ball. In addition, you may form the base material 11 with a resin board.

  In the base 11, a back plate 13, a front plate 14, and an extending plate 15 are connected in series via fold lines (first fold lines) 17 a and 17 b. In addition, cuts (not shown) are provided at predetermined intervals on the folding lines 17a and 17b indicated by broken lines, so that the base 11 can be easily bent along the folding lines 17a and 17b.

  The back plate 13 is formed in a rectangular shape, and the heat shrink film 12 is bonded through an adhesive 16. The lower end of the heat shrink film 12 is disposed below the lower end of the back plate 13. Thus, when the heat shrink film 12 is heat-shrinked by matching the lower end of the article to be packaged 20 (indicated by the alternate long and short dash line in FIG. 5) with the lower end of the back plate 13, the heat shrink film 12 becomes Shrinks over the outer periphery.

  Further, when the lower end of the article to be packaged 20 is made coincident with the lower end of the back plate 13, the upper end of the heat shrink film 12 is arranged above the upper end of the article to be packaged 20. Thereby, when the heat-shrinkable film 12 is heat-shrinked, the heat-shrinkable film 12 covers the outer peripheral portion of the top surface of the packaged object 20 and shrinks. Therefore, the package 20 can be stably held by the heat shrink film 12.

  The front plate 14 is formed in a substantially trapezoidal shape, and an opening 14a is opened at the center. A pair of projecting pieces 14 b project from a side edge of the upper portion of the opening 14 a via a fold line (second fold line) 18. The protruding piece 14b passes through the upper end of the adhesive 16 and is disposed above the vertical line h perpendicular to the fold line (first fold line) 17a. Thereby, when the base material 11 is assembled and the trunk | drum 11a (refer FIG. 1) is formed, the protrusion piece 14b is distribute | arranged above the upper end of the adhesive material 16. FIG.

  A restoring force is applied to the protruding piece 14b to return to the shape before being bent. For this reason, the protruding piece 14b presses the upper part of the packaged object 20 forward by bending the protruding piece 14b along the fold line 18 to the inside of the body 11a and bringing it into contact with the peripheral surface of the packaged object 20. (See FIG. 2). As described above, the bending means such as the folding line 18 may be omitted. The restoring force can be increased by omitting the bending means from the base of the protruding piece 14b.

  The width L2 of the upper end of the front plate 14 is larger than the width L4 of the upper end of the rear plate 13, and the width L1 of the lower end of the front plate 14 is larger than the width L3 of the lower end of the rear plate 13. Thereby, when the folding line 17a is bent and the body part 11a is formed by aligning the folding line 17b with the side edge of the back plate 13, only the front plate 14 is moved forward while the back plate 13 remains substantially flat. Can be convexly curved.

  The lower end of the front plate 14 is convexly curved downward. Thereby, the lower end of the trunk | drum 11a (refer FIG. 1) can be contact | abutted to an installation surface, without tilting the to-be-packaged goods 20 forward. Therefore, the packaging body 1 can be stably made independent.

  Further, the width L1 at the lower end of the front plate 14 is larger than the width L2 at the upper end. For this reason, the curvature radius of the lower end of the front plate 14 becomes smaller than the curvature radius of the upper end of the front plate 14, and the front plate 14 is inclined in a direction approaching the rear plate 13 upward. The upper end width L2 of the front plate 14 may be the same as the upper end width L4 of the rear plate 13, and the upper end of the body 11a (see FIG. 1) may be formed linearly.

  An insertion piece 15 a is provided at a side end of the extension portion 5, and the body portion 11 a is formed by inserting the insertion piece 15 a into a slit 13 a provided in the back plate 13. The insertion piece 15 a is formed by V-shaped notches 15 b provided at two locations on the side end of the extended plate 15. Thereby, the insertion piece 15a can be smoothly inserted into the slit 13a.

  Further, a cut 15c extending in a direction approaching each other is formed at the tip of each notch 15b, and the tip of the cut 15c is bent. Thereby, the insertion piece 15a inserted in the slit 13a can be latched.

  The packaging material 10 is heated by inserting the article to be packaged 20 into the heat shrinkable film 12 before bending the base material 11. As a result, the heat shrink film 12 is shrunk to cover the packaged object 20. After that, the base material 11 is bent along the fold line 17a, the fold line 17b, and the fold line 18, and the insertion piece 15a is inserted into the slit 13a, whereby the packaging material 10 is assembled and the packaging body 1 is completed.

  On the other hand, when the package 1 is opened, the heat-shrinkable film 12 is broken along the sewing machine line 12a and the packaged article 20 is pulled out from the opening 14a and taken out.

  According to this embodiment, the width L 1 of the lower end of the front plate 14 of the packaging material 10 is larger than the width L 3 of the lower end of the back plate 13. Thereby, when the packaging material 10 is assembled, the front plate 14 can be bent convexly forward, and the packaging body 1 can be made stable and independent. Therefore, the convenience at the time of display and storage of the package 1 can be improved.

  Further, the width L1 at the lower end of the front plate 14 of the packaging material 10 is larger than the width L2 at the upper end. Thereby, when the packaging material 10 is assembled, the front plate 14 can be inclined upward in a direction approaching the back plate 13. Thereby, the upper part of the to-be-packaged object 20 coat | covered with the heat shrink film 12 can be protruded ahead from the opening part 14a, and the visibility of the to-be-packaged object 20 can be improved.

  Moreover, the lower end of the front plate 14 of the packaging material 10 is convexly curved downward. Thereby, when the packaging material 10 is assembled, the lower end of the front plate 14 can be brought into contact with the installation surface without tilting the article 20 covered with the heat shrink film 12 forward. Therefore, the package 1 can be made more stable and independent.

  Further, the lower end of the heat shrink film 12 of the packaging material 10 is arranged below the lower end of the back plate 13. As a result, when the heat shrink film 12 is heat shrunk by causing the lower end of the article to be packaged 20 to coincide with the lower end of the back plate 13, the heat shrink film 12 covers the outer peripheral portion of the bottom surface of the object to be wrapped 20 and shrinks. Therefore, the article 20 to be in contact with the installation surface can be stably held inside the heat shrink film 12.

  Moreover, the protrusion piece 14b which protrudes from the periphery of the upper part of the opening part 14a of the packaging material 10 is provided. Thereby, when the packaging material 10 is assembled, the protruding piece 14b can be bent along the fold line 18 and brought into contact with the peripheral surface of the article 20 to be packaged. For this reason, the protrusion piece 14b presses the upper part of the article to be packaged 20 forward, and the upper part of the article to be packaged 20 can be protruded further forward from the opening 14a.

  Further, by providing the fold line (second fold line) 18 on the base side of the protruding piece 14b, the protruding piece 14b can be easily pushed into the rear (back side) of the upper portion of the packaged article 20. Thereby, even if the protrusion amount of the protrusion piece 14b is enlarged, the fall of the folding workability | operativity of the protrusion piece 14b can be reduced.

  Further, the protruding piece 14b of the packaging material 10 is disposed above the perpendicular h passing through the upper end of the adhesive 16 and perpendicular to the fold line (first fold line) 17a. Thereby, when the packaging material 10 is assembled, the protruding piece 14b can be arranged above the upper end of the adhesive material 16, and the upper part of the article to be packaged 20 can be easily protruded forward from the opening 14a.

  Moreover, the upper part of the packaged object 20 of the package 1 projects forward from the opening 14a, the lower end of the front plate 14 is convexly curved forward, and the packaged object 20 below the opening 14a is connected to the front plate 14. It is arranged between the back plate 13. Thereby, the packaging body 1 can be made to stand stably at the time of display or storage, and the visibility of the package 20 is good when the packaging body 1 is displayed. Therefore, the convenience of the package 1 can be improved.

  Moreover, since the back plate 13 of the package 1 is formed in a substantially flat surface, the characters printed on the back plate 13 can be easily recognized.

  Further, since the curvature radius of the lower end of the front plate 14 of the package 1 is smaller than the curvature radius of the upper end of the front plate 14, the front plate 14 is inclined in a direction approaching the rear plate 13 upward. Thereby, the upper part of the to-be-packaged object 20 protrudes more forward from the opening part 14a, and the visibility of the to-be-packaged object 20 can be improved.

  Moreover, the upper part of the article to be packaged 20 is pressed forward by the protruding piece 14b protruding from the periphery of the opening 14a of the package 1. At this time, the upper part of the front plate 14 is weighted to the back plate 13 side by the reaction from the article 20 to be packaged, and the article 20 can be protruded further forward from the opening 14a. Thereby, the visibility of the to-be-packaged object 20 can be improved more.

  Moreover, the upper end of the adhesive 16 of the package 1 is arranged below the protruding piece 14b. For this reason, the upper part of the article to be packaged 20 is not bonded to the back plate 13. Thereby, the upper part of the article 20 to be packaged is separated from the back plate 13 and pushed forward by the protruding piece 14b. For this reason, it is possible to prevent the back plate 13 from being pulled forward together with the packaged object 20 and the back plate 13 from being bent forward.

  Further, the lower end of the heat shrink film 12 of the package 1 is arranged below the lower end of the opening 14a, whereby the lower portion of the package 20 can be held by the heat shrink film 12, and the package 20 However, the inside of the package 1 is stable, and the package 1 can be made more stable and independent.

Second Embodiment
FIG. 6 shows a development view of the packaging material 10 of the second embodiment. For convenience of explanation, the same parts as those in the first embodiment shown in FIGS. This embodiment differs from the first embodiment in the position of the protruding piece 14b. Other parts are the same as those in the first embodiment.

  The protruding piece 14b protrudes from the periphery of the upper end of the opening 14a via a fold line (second fold line) 18. The protruding piece 14b is bent along the fold line 18 to the inside of the body portion 11a and brought into contact with the top surface of the article 20 to be packaged. Thereby, the protrusion piece 14b presses the upper part of the packaged article 20 forward. Therefore, the present embodiment can provide the same effects as those of the first embodiment.

<Third Embodiment>
FIG. 7 shows a side sectional view of the package 1 according to the third embodiment. For convenience of explanation, the same parts as those in the first embodiment shown in FIGS. The present embodiment is different from the first embodiment in that the peripheral edge of the lower end of the opening 14a is not in contact with the peripheral surface of the article 20 and a gap S is provided. Other parts are the same as those in the first embodiment.

  By forming a gap S between the article to be packaged 20 and the front plate 14 below the opening 14a, for example, when the package 1 packed in a box receives an impact during transportation, it is curved forward and convex. The front plate 14 can absorb the impact and protect the package 20.

  In addition, you may provide the clearance gap S similar to this embodiment in the package 1 of 2nd Embodiment.

  In addition, this invention is not necessarily limited to embodiment mentioned above, A various other change is possible.

  As described above, according to the packaging material of the present invention, since the width of the lower end of the front plate is larger than the width of the lower end of the rear plate, the lower end of the front plate is curved forward and the packaged object is curved with the front plate and the rear plate. Can be placed between. Thereby, the lower end of a front plate can be contact | abutted to a grounding surface, a packaging body can be made to stand independently, and the convenience of a packaging body can be improved.

  As described above, according to the packaging material of the present invention, the upper portion of the article to be packaged projects forward from the opening of the front plate, the lower end of the front plate is curved forward, and the article to be packaged below the opening is the front plate. And the back plate. Accordingly, the lower end of the front plate can be brought into contact with the grounding surface so that the packaging body can be stably made independent, the visibility of the packaged article is good, and the convenience of the packaging body can be improved.

  The present invention can be used for a package that holds a product.

DESCRIPTION OF SYMBOLS 1 Packing body 10 Packaging material 11 Base material 11a Body part 12 Heat shrink film 12a Sewing machine wire 13 Back plate 13a Slit 14 Front plate 14a Opening part 14b Projection piece 15 Extension board 15a Insertion piece 15b Notch 15c Notch 16 Adhesive material 17a , 17b Fold line (first fold line)
18 Folding line (second folding line)
20 Packaged object S Gap D Step h Vertical L1 Width of lower end of front plate L2 Width of upper end of front plate L3 Width of lower end of rear plate L4 Width of upper end of rear plate

Claims (14)

A base material having a front plate having an opening and a back plate connected to the front plate via a first fold line, and a heat shrink film bonded to the back plate via an adhesive. In the packaging material
A packaging material, wherein a width of a lower end of the front plate is larger than a width of a lower end of the back plate.   The packaging material according to claim 1, wherein a width of a lower end of the front plate is larger than a width of an upper end of the front plate.   The packaging material according to claim 1 or 2, wherein a lower end of the front plate is convexly curved downward.   The packaging material according to any one of claims 1 to 3, wherein a lower end of the heat shrink film is disposed below a lower end of the back plate.   The packaging material according to any one of claims 1 to 4, further comprising a protruding piece protruding from a peripheral edge of an upper portion of the opening.   The packaging material according to any one of claims 1 to 5, further comprising a second fold line on a base side of the protruding piece.   The packaging material according to claim 5 or 6, wherein the protruding piece is disposed above a perpendicular perpendicular to the first fold line through the upper end of the adhesive. A base material having a front plate having an opening and a back plate facing the front plate, a heat shrink film bonded to the back plate via an adhesive, and a package covered with the heat shrink film In a package with goods,
The upper part of the packaged object protrudes forward from the opening, the lower end of the front plate is curved forward and the packaged object below the opening is between the front plate and the back plate. Package characterized by being arranged in.   The package according to claim 8, wherein the back plate is formed in a substantially flat surface.   The package according to claim 8 or 9, wherein a curvature radius of a lower end of the front plate is smaller than a curvature radius of an upper end of the front plate.   The package according to any one of claims 8 to 10, further comprising a protruding piece that protrudes from a peripheral edge of the opening and presses the upper portion of the packaged object forward.   The package according to claim 11, wherein an upper end of the adhesive is disposed below the protruding piece.   The package according to any one of claims 8 to 12, wherein a lower end of the heat shrink film is disposed below a lower end of the opening.   The package according to any one of claims 8 to 13, wherein a gap is formed between the article to be packaged and the front plate below the opening.

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