JP2015229495A - Packaging material and method for manufacturing package with use of packaging material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging material in which lowering of a producibility thereof is suppressed and which can package a further variety of objects to be packaged, and a method for manufacturing a package with use of the packaging material.SOLUTION: A packaging material A1 includes a base material, a cylindrical film 2 having contractility for packaging at least a part of an object 4 to be packaged, and a conjugate 3 which joins the cylindrical film 2 with the base material 1. The cylindrical film 2 has: a first cylindrical part 21 and a second cylindrical part 22 which have axial directions parallel to each other and are separated from each other in a width direction crossing the axial direction; a connection part 24 for connecting the first cylindrical part 21 and the second cylindrical part 22 to each other; and a cutting planned part 27 which is so provided as to partition the connection part 24 into a first cylindrical part side portion 24a and a second cylindrical part side portion 24b, and can be cut in a shrinkage process.

Description

  The present invention relates to a packaging material provided with a cylindrical film joined to a base material, and a method for manufacturing a package using the packaging material.

  A package body in which a package body as a product is packaged appropriately protects the package body and emphasizes the appearance at a store. FIG. 14 shows one process of a method for manufacturing a package using an example of a conventional packaging material (see, for example, Patent Document 1). The figure shows a packaging material X comprising a base material 91, a cylindrical film 92 that opens in the vertical direction in the figure, and a joined body 93 that joins them. Moreover, the to-be-packaged body 94 packaged with this packaging material X is shown. For the base material 91, for example, a base paper made of cardboard is used, and the tubular film 92 is a heat-shrinkable film and is generally transparent. In the figure, the cylindrical film 92 is in a state before heating, and is folded flat, for example. The joined body 93 is made of an adhesive or the like, and joins the front surface of the base material 91 and the tubular film 92. The joined body 93 has a strip shape extending in the vertical direction in the drawing. The packaged body 94 has a bulge-shaped portion located below and a slightly narrower columnar portion located above.

  In the manufacture of the package, the tubular film 92 is expanded. Next, the package body 94 is inserted into the internal space of the tubular film 92. And the cylindrical film 92 is made into the packaging film 92 'wrapped in the to-be-packaged body 94 in the close contact state by heat shrinking the cylindrical film 92. By passing through the above process, the package Y shown in FIG. 15 is obtained. According to the package Y, the packaged body 94 can be displayed on the front surface of the base material 91 through the packaging film 92 ′ so that it can be easily seen by the purchaser.

  In the package Y, it is preferable that the package body 94 of various aspects is appropriately packaged. If it is the to-be-packaged body 94 which has the said bulging shape part and the said cylindrical part, it can package appropriately to some extent with the packaging material X using the cylindrical film 92. FIG. However, when the packaged body 94 has a more complicated shape or is constituted by a plurality of elements, it is difficult to expect that the tubular film 92 is simply packaged simply by heat shrinking. For example, if a packaging material X in which a plurality of tubular films 92 are separated from each other and bonded to a base material 91 is used, a package body 94 having a complicated shape or a plurality of elements is packaged. It is possible. However, joining a plurality of cylindrical films 92 to the base material 91 reduces the manufacturing efficiency of the packaging material X.

JP 2012-121590 A

  The present invention has been conceived under the circumstances described above, and uses a packaging material capable of packaging a wider variety of objects to be packaged while suppressing a decrease in manufacturing efficiency, and the packaging material. It is an object of the present invention to provide a packaged manufacturing method.

  The packaging material provided by the first aspect of the present invention includes a base material, a shrinkable tubular film for packaging at least a part of the packaged body, and the tubular film on the base material. A cylindrical body, wherein the cylindrical film is parallel to each other in the axial direction and spaced apart from each other in the width direction intersecting the axial direction. A cylindrical portion, a connecting portion connecting the first cylindrical portion and the second cylindrical portion, and the connecting portion divided into a first cylindrical portion side portion and a second cylindrical portion side portion. And a planned cutting portion that can be cut during the contraction process.

  In a preferred embodiment of the present invention, the tubular film is a uniaxially stretched heat-shrinkable film in which the heat shrinkage along the main stretching direction corresponding to the width direction is larger than the heat shrinkage along the other direction. is there.

  In a preferred embodiment of the present invention, the joined body has a first joined portion and a second joined portion separated in the width direction.

  In a preferred embodiment of the present invention, the first joint portion overlaps the first tubular portion in plan view, and the second joint portion overlaps the second tubular portion in plan view.

  In a preferred embodiment of the present invention, the center in the width direction of the first joint portion is located closer to the connecting portion than the center in the width direction of the first tubular portion, and the second joint portion. The center in the width direction is located closer to the connecting portion than the center in the width direction of the second cylindrical portion.

  In preferable embodiment of this invention, the said connection part has a seal part which obstruct | occludes the said connection part side edge in the said width direction of each said 1st cylindrical part and said 2nd cylindrical part.

  In a preferred embodiment of the present invention, the seal portion includes a first region located on the first tubular portion side and a second region located on the second tubular portion side while being separated from the first region. The connecting portion has a single layer portion made of a single film material connecting the first region and the second region of the seal portion, and the cutting scheduled portion is the single layer It is formed in the part.

  The manufacturing method of the package provided by the second aspect of the present invention uses the packaging material provided by the first aspect of the present invention, and uses the packaging material provided on the first cylindrical portion of the cylindrical film. A step of accommodating the first packaged part, and accommodating the second packaged part of the packaged body in the second packaged part, and by cutting the tubular film, by cutting the tubular film, The first cylindrical part serves as a first packaging part for packaging the first packaged part, and the second cylindrical part serves as a second packaging part for packaging the second packaged part. It is characterized by providing these.

  In a preferred embodiment of the present invention, the first packaged part and the second packaged part of the packaged body are separate from each other.

  According to the present invention, when the packaging material is manufactured, the first cylindrical portion and the second cylindrical portion are the cutting scheduled portion in the manufacturing process of the package using the packaging material. Is cut into the first packaging part and the second packaging part which are separated from each other. The first package portion and the second package portion are separated from each other by covering the first package portion and the second package portion of the package body with the first package portion and the second package portion. The part can be appropriately packaged. Therefore, it is possible to package a wider variety of the objects to be packaged while suppressing a decrease in manufacturing efficiency.

  Other features and advantages of the present invention will become more apparent from the detailed description given below with reference to the accompanying drawings.

It is a top view which shows the packaging material based on 1st embodiment of this invention. It is sectional drawing which follows the II-II line | wire of FIG. It is a perspective view which shows an example of the manufacturing method of the package using the packaging material of FIG. It is a perspective view which shows an example of the package using the packaging material of FIG. It is sectional drawing which follows the VV line of FIG. It is a top view which shows the modification of the packaging material of FIG. It is a top view which shows an example of the package using the packaging material of FIG. It is a top view which shows an example of the manufacturing method of the package using the packaging material based on 2nd embodiment of this invention. It is a top view which shows an example of the package using the packaging material of FIG. It is a top view which shows the packaging material based on 3rd embodiment of this invention. It is a top view which shows the packaging material based on 4th embodiment of this invention. It is sectional drawing which follows the XII-XII line | wire of FIG. It is a top view which shows an example of the package using the packaging material of FIG. It is a top view which shows the manufacturing method of the package using an example of the conventional packaging material. It is a top view which shows the package using the packaging material of FIG.

  Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.

  1 and 2 show a packaging material according to the first embodiment of the present invention. The packaging material A1 of this embodiment includes a base material 1, a cylindrical film 2, and a joined body 3. FIG. 1 is a plan view of the packaging material A1, and FIG. 2 is a cross-sectional view taken along line II-II in FIG. FIG. 3 shows a method for manufacturing a package using the packaging material A1, and is a perspective view showing a state in which the package body 4 is accommodated in the packaging material A1.

  In addition, in this invention, the to-be-packaged body 4 is a concept including all of what consists of one object integrally formed, and consists of several elements made into a different body mutually. In the present embodiment, as shown in FIG. 3, the packaged body 4 includes a first packaged part 41 and a second packaged part 42 that are separated from each other. Moreover, the direction where the axis | shaft of the 1st cylindrical part 21 and the 2nd cylindrical part 22 of the cylindrical film 2 mentioned later extends is called an axial direction, the direction which cross | intersects this axial direction and follows the base material 1 is called. This is referred to as the width direction.

  The base material 1 holds the packaged body 4 via the tubular film 2 and the joined body 3. As the base material 1, so-called coated paper having a resin layer provided on its surface or a synthetic resin sheet is used in addition to a common base paper made of so-called non-coated paper such as thick paper, plain paper, and synthetic paper. sell. As these, various sheet materials such as a single layer sheet and a laminated sheet in which two or more of these sheets are laminated and bonded can be used. In the present embodiment, a case will be described as an example in which the base material 1 is made of thick paper and has a substantially long rectangular shape whose longitudinal direction is the axial direction. The base material 1 of the present embodiment is formed with a through-hole for hanging on a hook at a store.

  The tubular film 2 is a shrinkable film called a so-called shrink film, and is a member that wraps the package body 4 in a close contact state by, for example, heat shrinkage. In the present embodiment, the tubular film 2 has a first tubular portion 21 and a second tubular portion 22. The tubular film 2 is not composed of a single tubular member as a whole, but in the present invention, the tubular film 2 includes a plurality of tubular members such as the first tubular portion 21 and the second tubular portion 22. It is called a tubular film 2. In the illustrated packaging material A1, the tubular film 2 is in a flat state in which both ends in the width direction are folded, and has a rectangular shape in plan view.

  Specific examples of the resin film constituting the tubular film 2 include polyolefins such as linear low density polyethylene (LLDPE), low density polyethylene (LDPE), high density polyethylene (HDPE), and polypropylene (PP), polyethylene terephthalate. (PET), polyesters such as polybutylene terephthalate (PBT), polystyrene (PS), polylactic acid (PLA), polyamide, ethylene vinyl acetate copolymer (EVA), ethylene-acrylic acid copolymer (EAA) ) And a film made of a vinyl resin such as polyvinyl chloride. Moreover, the film containing the resin mixture which mixed 2 or more types of these resin can also be used, and the laminated | multilayer film which laminated | stacked 2 or more types of films can also be used. In particular, as a shrink film that is heat-shrinkable, polyester-based, polyolefin-based, and polystyrene-based films are preferable, and polyester-based and polystyrene-based films are particularly preferable because they have appropriate shrinkage stress and high transparency. In addition, a uniaxially stretched film that mainly shrinks in the circumferential direction can be preferably used, but a biaxially stretched film that also shrinks in the axial direction may be used. The uniaxially stretched film refers to a film that is substantially uniaxially stretched, and means a film that has significantly different shrinkage rates in the circumferential direction (so-called TD direction) and the axial direction (so-called MD direction). Thus, it does not mean only a film that does not shrink at all in any direction (so-called shrinkage rate is zero). Specifically, for example, a film having a thermal contraction rate of 35 to 80% in the circumferential direction and a thermal contraction rate of -5 to 10% in the axial direction at 90 ° C. for 10 seconds (warm water treatment) can be mentioned.

  Although it does not specifically limit as thickness of the cylindrical film 2, It is preferable that it is 8-100 micrometers, More preferably, it is 10-80 micrometers, Especially preferably, it is 15-60 micrometers. Moreover, as the tubular film 2, a colored resin tubular film or a resin film on which a printing layer for displaying a product name, a design, or the like is formed can be used.

  In the present embodiment, the tubular film 2 is a heat-shrinkable uniaxially stretched film. The main stretching direction S of the tubular film 2 is along the width direction as shown in FIG. Such a tubular film 2 has a property that when heated, the thermal shrinkage along the main stretching direction S is significantly larger than the thermal shrinkage along other directions.

  The tubular film 2 has a first tubular portion 21, a second tubular portion 22, a connecting portion 24, and a scheduled cutting portion 27. The first cylindrical portion 21 and the second cylindrical portion 22 are parallel to each other in the axial direction and are separated from each other in the width direction. Each of the first cylindrical portion 21 and the second cylindrical portion 22 has a pair of openings 20 at both axial ends. In addition, the 1st cylindrical part 21 and the 2nd cylindrical part 22 should just be what has at least one of the axial direction both ends opened. Although the magnitude | size and aspect ratio of the 1st cylindrical part 21 and the 2nd cylindrical part 22 are not specifically limited, In this embodiment, the axial direction dimension and the width direction dimension of the 1st cylindrical part 21, and a 2nd cylinder The dimension in the axial direction and the dimension in the width direction of the shaped portion 22 are the same as each other.

  The connecting part 24 is located between the first cylindrical part 21 and the second cylindrical part 22 and connects the first cylindrical part 21 and the second cylindrical part 22. Although the shape of the connection part 24 is not specifically limited, In this embodiment, the connection part 24 has the same axial dimension as the 1st cylindrical part 21 and the 2nd cylindrical part 22, and the width direction dimension is 1st. It is a long rectangular shape that is smaller than the cylindrical portion 21 and the second cylindrical portion 22.

  In the present embodiment, the connecting portion 24 has a seal portion 25 and a single layer portion 26. The seal part 25 includes a first region 25a and a second region 25b. The first region 25 a is located on the first tubular portion 21 side in the width direction, and closes the edge on the connecting portion 24 side in the width direction of the first tubular portion 21. The second region 25 b is located on the second cylindrical portion 22 side in the width direction, and closes the end edge on the connecting portion 24 side in the width direction of the second cylindrical portion 22.

  As clearly shown in FIG. 2, the first region 25 a and the second region 25 b are joined to a portion where the resin film forming the tubular film 2 is folded and the width direction end portions of the resin film are overlapped. It is a thing. The joining method for forming the first region 25a and the second region 25b is not particularly limited, but in the present embodiment, for example, a method of applying a solvent or the like that can exhibit adhesiveness to the resin film is employed. As shown in FIG. 1, the first region 25 a and the second region 25 b block the entire axial length of the first cylindrical part 21 and the second cylindrical part 22.

  The single layer part 26 is located between the 1st area | region 25a and the 2nd area | region 25b, and has connected the 1st area | region 25a and the 2nd area | region 25b. The single layer part 26 is comprised only by the resin film of 1 sheet. That is, the single layer part 26 is a part connected from one side of the two resin films which comprise the 1st area | region 25a and the 2nd area | region 25b.

  As shown in FIG. 1, the planned cutting portion 27 includes a first cylindrical portion side portion 24 a positioned on the first cylindrical portion 21 side in the width direction and a second cylindrical portion 22 side positioned on the second cylindrical portion 22 side. It is provided so as to be divided into two cylindrical portion side portions 24b, and can be cut in the shrinking process of the cylindrical film 2 described later. In the present embodiment, the scheduled cutting portion 27 is longitudinally cut through the single layer portion 26 in the axial direction, and extends in a direction intersecting the extending direction S, more specifically, a direction perpendicular to the extending direction S. As an example of the cutting scheduled portion 27 that can be cut in the contraction process, for example, a portion made of a perforation line can be cited. The perforation line has a configuration in which a plurality of penetrating portions and a plurality of non-penetrating portions are alternately arranged. The ratio of the length of the penetrating part and the length of the non-penetrating part is not particularly limited, but when it is intended to cut smoothly during heat shrinkage, the ratio of the length of the penetrating part and the length of the non-penetrating part is 1: 1 to 7: 1 is preferable, and 1.5: 1 to 5: 1 is more preferable. However, the planned cutting portion 27 is not limited to the perforation line, and can be cut by thermal contraction, for example, a configuration in which a part of the tubular film 2 is locally thinned or a configuration in which it is locally bent. It only has to be done.

  The joined body 3 joins the base material 1 and the tubular film 2, and has a first joint portion 31 and a second joint portion 32. As shown in FIG. 1, the first joint portion 31 overlaps the first tubular portion 21 of the tubular film 2 in plan view, and joins the first tubular portion 21 to the base material 1. The second joint portion 32 overlaps the second tubular portion 22 in plan view, and joins the second tubular portion 22 to the base material 1. Moreover, the 1st junction part 31 and the 2nd junction part 32 are mutually spaced apart in the width direction on both sides of the cutting plan part 27. As shown in FIG. That is, the joined body 3 is provided at a position that avoids the planned cutting portion 27 in plan view. Although the 1st junction part 31 and the 2nd junction part 32 are made into the strip | belt shape extended in an axial direction, this is an example and the shape of the 1st junction part 31 and the 2nd junction part 32 is set variously. Moreover, although the magnitude relationship of the 1st junction part 31 and the 2nd junction part 32 is not specifically limited, In this embodiment, it respond | corresponds to the 1st cylindrical part 21 and the 2nd cylindrical part 22 being the same size. The first joint 31 and the second joint 32 are also the same size.

  As shown in FIG. 2, the center line C <b> 1 b that is the center in the width direction of the first cylindrical portion 21 is located closer to the connecting portion 24 than the center line C <b> 1 a that is the center in the width direction of the first cylindrical portion 21. . Further, the center line C <b> 2 b that is the center in the width direction of the second cylindrical portion 22 is located closer to the connecting portion 24 than the center line C <b> 2 a that is the center in the width direction of the second cylindrical portion 22. In the present embodiment, the first joint portion 31 and the second joint portion 32 overlap the first tubular portion 21 and the second tubular portion 22 in plan view, but the first region 25a and the second region 25b. Does not overlap.

  The joined body 3 may be any structure as long as it joins the tubular film 2 to the base material 1 and does not hinder the cutting at the planned cutting portion 27, and the first joining portion 31 and the second joining portion 32 are separate. The configuration is not limited to the configuration described above, and may be a configuration in which, for example, the first joint portion 31 and the second joint portion 32 are formed integrally. Furthermore, the joined body 3 may have a configuration having a part other than the first joined portion 31 and the second joined portion 32 apart from these. Further, the joined body 3 may be provided at a position overlapping the connecting portion 24.

  The bonded body 3 has, for example, a strong adhesive strength between the base material 1 and the tubular film 2 and can withstand a load of the packaged body 4 and can maintain various adhesive states (long-term adhesive state in the distribution process and display process). Including an adhesive). Examples of such adhesives include pressure sensitive adhesives such as elastomeric adhesives, thermoplastic resin adhesives, and hot melt adhesives, and heat sensitive adhesives. A hot melt adhesive that exhibits strong adhesive strength when it is cooled to room temperature after laminating the film-like film 2 is preferred, and a moisture-reactive hot melt adhesive is more preferred. The adhesive strength can be adjusted not only by the type of adhesive but also by the adhesive application area and various additives, and can be appropriately adjusted according to the weight of the supported object. Further, the joined body 3 may be constituted by a so-called double-sided tape instead of the adhesive.

  Next, an example of a method for manufacturing a package using the packaging material A1 will be described below. In the following description, a case where a packaging body B1 to be described later is manufactured using one packaging material A1 will be described as an example. For example, a packaging material A1 in which a plurality of packaging materials A1 are integrally connected is described. You may manufacture the some package B1 collectively using an aggregate | assembly.

  FIG. 3 shows one process of manufacturing a package using the packaging material A1. In this figure, the to-be-packaged body 4 is accommodated in the tubular film 2 of the packaging material A1. In the present embodiment, the packaged body 4 includes a first packaged part 41 and a second packaged part 42 that are separated from each other. Although the shape and magnitude | size of the 1st to-be-wrapped part 41 and the 2nd to-be-wrapped part 42 are not specifically limited, In this embodiment, each is made into the column shape and each magnitude | size is the same. As shown in the figure, the first tubular portion 21 is expanded, and the first packaged portion 41 is inserted into the first tubular portion 21 through one of the openings 20. Further, the second cylindrical portion 22 is expanded, and the second packaged portion 42 is inserted into the second cylindrical portion 22 from any one of the openings 20. Thereby, the process of accommodating the 1st to-be-packaged part 41 and the 2nd to-be-packaged part 42 in the 1st cylindrical part 21 and the 2nd cylindrical part 22 is completed.

  In the state shown in the figure, the center in the width direction of the first packaged portion 41 and the second packaged portion 42 is near the center in the width direction of the expanded first cylindrical portion 21 and second cylindrical portion 22. To position. From the relationship between the center line C1a, the center line C1b, the center line C2a, and the center line C2b described with reference to FIG. 1, the center in the width direction of the first packaged portion 41 and the second packaged portion 42 in FIG. The connecting portion 24 is located on the opposite side of the center in the width direction (center line C1b, not shown) of the one joint portion 31 and the center in the width direction (center line C2b, not shown) of the first joint portion 31. .

  In addition, the to-be-packaged body 4 is the structure which has the 1st to-be-packaged part 41 accommodated in the 1st cylindrical part 21 of the cylindrical film 2, and the 2nd to-be-packaged part 42 accommodated in the 2nd cylindrical part 22. The first packaged part 41 and the second packaged part 42 are not limited to the configuration in which the first packaged part 41 and the second packaged part 42 are separated from each other. For example, the packaged body 4 may include a first packaged part 41 and a second packaged part 42 that are integrally formed as a whole. Further, the packaged body 4 may have a configuration in which a part other than the first packaged part 41 and the second packaged part 42 is separated from these.

  Next, the tubular film 2 is thermally contracted using, for example, a steam tunnel facility or a hot-air tunnel facility set at a predetermined temperature. Thereby, as shown in FIGS. 4 and 5, the heat-shrinkable tubular film 2 becomes a packaging film 2A. FIG. 4 is a perspective view showing a package B1 manufactured using the packaging material A1, and FIG. 5 is a cross-sectional view taken along the line VV of FIG.

  When the tubular film 2 is thermally shrunk, it is shrunk mainly along the main stretching direction S described above. The first tubular portion 21 of the tubular film 2 is joined to the base material 1 by the first joint portion 31, and the second tubular portion 22 is joined to the base material 1 by the second joint portion 32. Accordingly, the first tubular portion 21 exhibits a behavior of contracting with the center line C1b of the first joint portion 31 as an approximate center in the width direction, and the second tubular portion 22 approximately approximates the center line C2b of the second joint portion 32. The behavior of shrinking as the width center is shown. For this reason, a force pulling in the main stretching direction S acts on the planned cutting portion 27, thereby causing the planned cutting portion 27 to cut. As a result, the portion that was the first tubular portion 21 of the tubular film 2 becomes the first packaging portion 21A, and the portion that was the second tubular portion 22 becomes the second packaging portion 22A. 21 A of 1st packaging parts wrap the 1st to-be-wrapped part 41 in a close_contact | adherence state, and 22A of 2nd packaging parts wrap the 2nd to-be-wrapped part 42 in a contact | adhered state. That is, the packaging film 2A formed by the thermal contraction of the tubular film 2 is configured to have a first packaging part 21A and a second packaging part 22A that are separated from each other. The first packaged part 41 and the second packaged part 42 have a positional relationship that is slightly closer in the width direction in FIG. 4 than the position shown in FIG. 3 due to thermal contraction and cutting of the tubular film 2. Become.

  Moreover, the two opening parts 20 of each of the first cylindrical part 21 and the second cylindrical part 22 are two 20A. In the present embodiment, the portions near both ends of the first packaged portion 41 and the second packaged portion 42 are slightly exposed from the two openings 20 of the first cylindrical portion 21 and the second cylindrical portion 22. It has become. This is due to the size relationship between the tubular film 2 (packaging film 2A), the first packaged portion 41, and the second packaged portion 42, and the first packaged portion 41 and the second packaged portion 42 are the first. All of the packaging part 21A and the second packaging part 22A may be covered.

  One of the two edges that appear when the planned cutting part 27 cuts becomes an edge 27Aa on the first packaging part 21A side, and the other becomes an edge 27Ab on the second packaging part 22A side. In the present embodiment, since the planned cutting portion 27 is formed by the perforation line, the end edge 27Aa and the end edge 27Ab have some unevenness as shown in FIG.

  The portions of the tubular film 2 that are the first region 25a, the second region 25b, and the single layer portion 26 are the seal portion 25Aa, the seal portion 25Ab, and the single layer of the packaging film 2A shown in FIG. It becomes part 26Aa and single layer part 26Ab. That is, the part which was the 1st cylindrical part side part 24a of the connection part 24 in the cylindrical film 2 turns into the seal part 25Aa and single layer part 26Aa, and the part which was the 2nd cylindrical part side part 24b is a seal | sticker. It becomes part 25Ab and single layer part 26Ab. While the first cylindrical part 21 and the second cylindrical part 22 cover the first packaged part 41 and the second packaged part 42, heat is applied while being restrained by the first packaged part 41 and the second packaged part 42. In contrast to the shrinkage, the first region 25a, the second region 25b, and the single layer portion 26 are thermally shrunk without being particularly restricted. For this reason, the seal portion 25Aa, the seal portion 25Ab, the single layer portion 26Aa, and the single layer portion 26Ab are remarkably contracted in the main stretching direction S, and become extremely narrow as shown in FIGS.

  Moreover, as shown in FIG. 1, the center line C1a, the center line C1b, the center line C2a, and the center line C2b are in the above-described positional relationship, so that the first region 25a, the second region 25b, and the single layer portion 26 are The first joint 31 and the second joint 32 are disposed relatively close to each other. Therefore, as clearly shown in FIG. 5, the seal portion 25Aa and the single layer portion 26Aa are positioned very close to the first joint portion 31 in the width direction, and the first packaged portion in plan view. 41 is hidden. Similarly, the seal portion 25Ab and the single layer portion 26Ab are positioned very close to the second joint portion 32 in the width direction, and are hidden by the second packaged portion 42 in plan view.

  Through the above steps, the package B1 shown in FIGS. 4 and 5 is obtained. The package B1 includes a base material 1, a packaging film 2A, a joined body 3, and a packaged body 4. The packaging film 2A has a first packaging portion 21A and a second packaging portion 22A that are separate from each other as described above. The joined body 3 includes a first joining portion 31 and a second joining portion 32. The first joining portion 31 joins the first packaging portion 21A of the packaging film 2A to the base material 1, and the second joining portion 32 is the first. The two packaging parts 22A are joined to the base material 1. The packaged body 4 includes a first packaged part 41 and a second packaged part 42 that are separate from each other. The first packaged portion 41 is wrapped in close contact with the first packaged portion 21A, and the second packaged portion 42 is wrapped in close contact with the second packaged portion 22A.

  Next, an effect | action of the manufacturing method of packaging material A1 and the package B1 using this is demonstrated.

  According to the present embodiment, when the packaging material A1 is manufactured, the first cylindrical portion 21 and the second cylindrical portion 22 that are integrated with each other are cut portions in the manufacturing process of the package using the packaging material A1. By cutting 27, it becomes the first packaging part 21A and the second packaging part 22A which are separated from each other. The first packaging portion 21A and the second packaging portion 22A cover the first packaging portion 41 and the second packaging portion 42 of the package body 4 so that the first packaging portion 41 and the second packaging portion that are separated from each other are covered. The packaging part 42 can be appropriately packaged. Therefore, more various packages 4 can be packaged while suppressing a decrease in manufacturing efficiency.

  The scheduled cutting portion 27 of the tubular film 2 extends in a direction intersecting the stretching direction S, more specifically, a direction perpendicular to the stretching direction S. Thereby, when the tubular film 2 is thermally contracted, the tearing force acts on the planned cutting portion 27 significantly. Therefore, the tubular film 2 can be more reliably changed to the packaging film 2A having the first packaging part 21A and the second packaging part 22A.

  The 1st cylindrical part 21 and the 2nd cylindrical part 22 are joined to the base material 1 by the 1st junction parts 31 and 32 made into a different body mutually. The first cylindrical part 21 and the second cylindrical part 22 exhibit a behavior of contracting around the center line C1b and the center line C2b of the first joint part 31 and the second joint part 32 when thermally contracted. For this reason, it is possible to make the force which tears the cutting plan part 27 from the width direction both sides larger, and can manufacture package B1 more smoothly.

  As shown in FIG. 1, the center line C <b> 1 a, the center line C <b> 1 b, the center line C <b> 2 a, and the center line C <b> 2 b are in the above-described positional relationship. It is provided near the target. For this reason, after the tubular film 2 is heat-shrinked and the scheduled cutting portion 27 is cut, as shown in FIGS. 4 and 5, the edge 27 </ b> Aa and the edge 27 </ b> Ab are the first bonding portion 31 and the second bonding portion. Approach 32. In particular, the seal portion 25 and the single layer portion 26 constituting the connecting portion 24 are significantly heat shrunk without being constrained by the first package portion 41 and the second package portion 42 of the package body 4, The edge 27 </ b> Aa and the end edge 27 </ b> Ab are closer to the first joint portion 31 and the second joint portion 32. Therefore, in the package B1, the edge 27Aa and the edge 27Ab can be almost hidden by the first packaged portion 41 and the second packaged portion 42 in a plan view, as if they are in the state of the packaging material A1. It is possible to realize an appearance that is packaged using the first packaging portion 21A and the second packaging portion 22A that are separate bodies.

  The single layer portion 26 located between the first region 25a and the second region 25b of the seal portion 25 is composed of only one tubular film 2. By providing the scheduled cutting portion 27 in the single layer portion 26, the single layer portion 26 can be more easily cut when the tubular film 2 is thermally contracted. This is for avoiding incomplete cutting at the planned cutting portion 27 or unintentional cutting at a site other than the planned cutting portion 27 when the tubular film 2 is thermally contracted. preferable.

  6 to 13 show modifications of the present invention and other embodiments. In these drawings, the same or similar elements as those in the above embodiment are denoted by the same reference numerals as those in the above embodiment.

  FIG. 6 is a plan view showing a modified example of the packaging material A1. The packaging material A1 of the present modification has a configuration in which the first cylindrical portion 21 and the second cylindrical portion 22 have different width dimensions. More specifically, the width direction dimension of the first cylindrical part 21 is smaller than the width direction dimension of the second cylindrical part 22. However, the positional relationship among the center line C1a, the center line C1b, the center line C2a, and the center line C2b is the same as the above-described example.

  FIG. 7 shows an example of a package manufactured using the packaging material A1 shown in FIG. In the package B1 of the present modification, the sizes of the first packaged portion 41 and the second packaged portion 42 are different from each other. First, the width direction dimension of the first packaged part 41 is made smaller than the width direction dimension of the second packaged part 42. That is, the magnitude relationship between the first tubular portion 21 and the second tubular portion 22 described above corresponds to the magnitude relationship between the first packaged portion 41 and the second packaged portion 42. In addition, the axial dimension of the first packaged part 41 is smaller than the axial dimension of the second packaged part 42. Furthermore, the 1st to-be-packaged part 41 is a magnitude | size with which the axial direction both ends are covered by 21 A of 1st packaging parts. On the other hand, the 2nd to-be-packaged part 42 is a magnitude | size which protrudes largely in the axial direction both sides from 22A of 2nd packaging parts.

  As can be understood from the present example, the sizes of the first packaged portion 41 and the second packaged portion 42 are appropriately set individually, and the first cylindrical portion 21 and the second cylinder are correspondingly set accordingly. The size of the shape portion 22 is set.

  FIG. 8 is a plan view showing the packaging material according to the second embodiment of the present invention and the packaged body 4 packaged thereby. The packaging material A2 of the present embodiment has substantially the same configuration as the packaging material A1 described above, but has a different reference for convenience because the configuration of the packaged body 4 is different.

  In the present embodiment, the packaged body 4 includes a first packaged part 41, a second packaged part 42, and a connecting part 44, and is configured as an integral product as a whole. The first packaged part 41 and the second packaged part 42 are cylindrical portions similar to the first packaged part 41 and the second packaged part 42 in the above-described embodiment, and are parallel to each other. The connection part 44 connects the axial direction one ends of the 1st to-be-packaged part 41 and the 2nd to-be-packaged part 42, and is U-shaped.

  As shown in FIG. 8, in the manufacturing method of the package using the packaging material A <b> 2 and the packaged body 4, the first packaged part 41 is added to the expanded first cylindrical part 21 and the second cylindrical part 22. And the 2nd to-be-packaged part 42 is inserted simultaneously. And the package B2 shown in FIG. 9 is obtained by passing through the process demonstrated in the manufacturing method using packaging material A1.

  Even in the present embodiment, the packaging film 2A for packaging the packaged body 4 has a first packaging portion 21A and a second packaging portion 22A that are separate from each other. The packaged body 4 configured as an integrated product is covered and fixed to the base material 1 by the packaging film 2A including the first packaging part 21A and the second packaging part 22A which are separate from each other.

  Also according to such an embodiment, it is possible to package more various packages 4 while suppressing a decrease in manufacturing efficiency. Further, the first packaged part 41 and the second packaged part 42 are not limited to the packaged body 4 separated from each other, and even the packaged body 4 formed integrally is as in the present embodiment. The packaged body 4 having a relatively complicated shape can be packaged appropriately and easily.

  FIG. 10 is a plan view showing a packaging material according to the third embodiment of the present invention. The packaging material A3 of this embodiment differs in the structure of the connection part 24 from the connection part 24 of embodiment mentioned above. In this embodiment, the connection part 24 is comprised only by the seal part 25, and does not have the single layer part 26 in embodiment mentioned above. The seal portion 25 is configured such that the first region 25a and the second region 25b where two resin films are joined are adjacent to each other or overlap each other. Moreover, in this embodiment, the cutting scheduled part 27 is formed in the seal part 25 (second area 25b), and is provided at a position avoiding the boundary between the first area 25a and the second area 25b. . For this reason, the 1st cylindrical part side part 24a and the 2nd cylindrical part side part 24b of the connection part 24, and the 1st area | region 25a and the 2nd area | region 25b of the seal | sticker part 25 become the structure which each boundary shifted | deviated. ing.

  Also according to such an embodiment, it is possible to package more various packages 4 while suppressing a decrease in manufacturing efficiency.

  11 and 12 show a packaging material according to the fourth embodiment of the present invention. FIG. 11 is a plan view showing the packaging material A4 of the present embodiment, and FIG. 12 is a cross-sectional view taken along line XII-XII in FIG. In the packaging material A <b> 4, the tubular film 2 includes a first tubular portion 21, a second tubular portion 22, a third tubular portion 23, and two connecting portions 24. The third cylindrical portion 23 has an axial direction parallel to the axial directions of the first cylindrical portion 21 and the second cylindrical portion 22, and the width direction with respect to the first cylindrical portion 21 and the second cylindrical portion 22. Are separated. Although the shape and size of the third cylindrical portion 23 are not particularly limited, in the present embodiment, the axial and width dimensions of the third cylindrical portion 23 are the first cylindrical portion 21 and the second cylindrical shape. It is substantially the same as the part 22.

  Further, the second cylindrical portion 22 and the third cylindrical portion 23 are connected by a connecting portion 24. The connecting portion 24 that connects the second cylindrical portion 22 and the third cylindrical portion 23 is configured only by the seal portion 25, and the second cylindrical portion side portion 24 b and the third cylindrical portion are cut by the planned cutting portion 27. It is partitioned into a side portion 24c. As shown in FIG. 12, the seal portion 25 is formed on the side of the base material 1 in the tubular film 2, and on the side opposite to the base material 1, the portion constituting the second tubular portion 22 and the third tubular portion 23. In FIG. 4, the portions connected to the portions forming the second cylindrical portion 22 and the third cylindrical portion 23 are joined to each other. The joining method of the seal part 25 is the same as that described above.

  Corresponding to the tubular film 2 having the first tubular portion 21, the second tubular portion 22 and the third tubular portion 23, the joined body 3 includes a first joined portion 31, a second joined portion 32 and A third joint 33 is provided. The third joint portion 33 is separate from the first joint portion 31 and the second joint portion 32, and overlaps the third tubular portion 23 in plan view.

  The positional relationship between the center line C1a and the center line C1b in the present embodiment is the same as in the above-described embodiment. The center line C3b of the first joint portion 31 is located closer to the connecting portion 24 in the width direction than the center line C3a of the third cylindrical portion 23. On the other hand, in the second cylindrical part 22 sandwiched between the first cylindrical part 21 and the third cylindrical part 23, the center line C2b and the center line C2a are substantially coincident with each other.

  FIG. 13 shows an example of a package manufactured using the packaging material A4. In the illustrated packaging body B4, the packaging body 4 including the first packaging portion 41, the second packaging portion 42, and the first packaging portion 43 is held on the base 1 via the packaging film 2A. The first packaged part 41, the second packaged part 42, and the first packaged part 43 are separated from each other, and the shape and size are not particularly limited. The part 41, the second packaged part 42, and the first packaged part 43 have substantially the same shape and a cylindrical shape with the same size. Moreover, it replaces with the to-be-packaged body 4 shown in figure, and has the 1st to-be-packaged part 41, the 2nd to-be-packaged part 42, and the 1st to-be-packaged part 43 by having a site | part similar to the connection part 44 shown in FIG. Any two of these or all may be integrally formed.

  The packaging film 2A includes a first packaging part 21A for packaging the first packaging part 41, a second packaging part 22A for packaging the second packaging part 42, and a third packaging part 23A for packaging the first packaging part 43. Have. In FIG. 12, since the center line C2a and the center line C2b substantially coincide with each other, in the second packaging portion 22A of the packaging film 2A in FIG. 13, two end edges 27Ab are at both ends in the width direction of the second packaging portion 22A. Located in. For this reason, unlike the configuration in which the edge 27Ab of the second packaging portion 22A is hidden by the second packaged portion 42 in plan view in the packaging body B1 described above, in the present embodiment, the second packaging portion 22A. The two end edges 27Ab can appear in plan view.

  Also according to such an embodiment, it is possible to package more various packages 4 while suppressing a decrease in manufacturing efficiency. As can be understood from the present embodiment, the tubular film 2 according to the present invention is not limited to a configuration having two tubular portions, ie, a first tubular portion 21 and a second tubular portion 22, and there are three or more. The structure which has this cylindrical part may be sufficient. With such a configuration, it is possible to appropriately package a packaged body 4 having three or more packaged parts separated from each other.

  The packaging material which concerns on this invention, and the manufacturing method of the package using this packaging material are not limited to embodiment mentioned above. The specific configuration of the packaging material according to the present invention and the method for manufacturing a package using the packaging material can be varied in design in various ways.

A1-A4 Packaging material B1, B2, B4 Packaging body 1 Base material 2 Cylindrical film 20 Opening part 21 First cylindrical part 22 Second cylindrical part 23 Third cylindrical part 24 Connecting part 24a First cylindrical part side Portion 24b Second tubular portion side portion 24c Third tubular portion side portion 25 Seal portion 25a First region 25b Second region 26 Single layer portion 27 Planned cutting portion 2A Packaging film 21A First packaging portion 22A Second packaging portion 23A Third packaging part 20A Opening part 25Aa, 25Ab Seal part 26Aa, 26Ab Single layer part 27Aa, 27Ab Edge 3 Joint 31 First joint 32 Second joint 33 Third joint 4 Packaged body 41 First package Part 42 Second packaged part 43 First packaged part 44 Connection part C1a, C1b, C2a, C2b, C3a, C3b Center line S Main extending direction

Claims (9)

Base material,
A tubular film having shrinkability for packaging at least a part of the packaged body,
A bonded body for bonding the tubular film to the base material,
The cylindrical film has a first cylindrical portion and a second cylindrical portion, the first cylindrical portion and the second cylindrical portion being parallel to each other and spaced apart from each other in a width direction intersecting the axial direction. A connecting portion that connects the tubular portions, and a cutting planned portion that is provided so as to partition the connecting portion into the first tubular portion side portion and the second tubular portion side portion, and that can be cut in the contraction process; A packaging material characterized by comprising:   The packaging material according to claim 1, wherein the tubular film is a uniaxially stretched heat-shrinkable film in which heat shrinkage along a main stretching direction corresponding to the width direction is larger than heat shrinkage along other directions. .   The packaging material according to claim 1, wherein the joined body includes a first joint portion and a second joint portion that are separated in the width direction.   The packaging material according to claim 3, wherein the first joint portion overlaps the first tubular portion in a plan view, and the second joint portion overlaps the second tubular portion in a plan view. The center in the width direction of the first joint portion is located closer to the connecting portion than the center in the width direction of the first cylindrical portion,
The packaging material according to claim 4, wherein the center in the width direction of the second joint portion is located closer to the connecting portion than the center in the width direction of the second cylindrical portion.   The package according to any one of claims 1 to 5, wherein the connecting portion includes a seal portion that closes an edge closer to the connecting portion in the width direction of each of the first cylindrical portion and the second cylindrical portion. Wood. The seal portion includes a first region located on the first tubular portion side, and a second region located on the second tubular portion side while being separated from the first region,
The connecting portion has a single layer portion made of one film material that connects the first region and the second region of the seal portion;
The packaging material according to claim 6, wherein the scheduled cutting portion is formed in the single layer portion. The packaging material according to any one of claims 1 to 7, wherein the first packaging portion of the packaging body is accommodated in the first cylindrical portion of the tubular film, and the second packaging portion is provided with the covering material. Containing the second packaged portion of the package;
The tubular film is contracted to cut the scheduled cutting portion, and the first tubular portion serves as a first packaging portion to package the first packaged portion, and the second tubular portion. Forming a second packaging part and packaging the second packaged part;
A method for producing a package, comprising:   The method for manufacturing a package according to claim 8, wherein the first packaged part and the second packaged part of the packaged body are separate from each other.

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