JP2016155597A - Packaging material and package - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging material and a package enabling easier opening of a cylindrical film when a packed article is taken out.SOLUTION: A packaging material A includes a base material 1, a shrinkable cylindrical film 2 for packing at least a part of a packed article 4, and a joining part 3 for joining the cylindrical film 2 to the base material 1. The cylindrical film 2 has a cutting schedule line 27 for constituting a cutting line during opening, and a cutting start point line 21 easier in cutting than the cutting schedule line 27. The cutting start point line 21 has a top part 22 positioned on x-direction one side of the cylindrical film 2 with respect to the joining part 3 when seen in a z-direction and overlapping the joining part 3 in a y-direction, and a first side part 23 connected to the top part 22 and positioned on y-direction one side. The axial direction end 231 of the first side part 23 is positioned closer to the x-direction other side than the axial direction end 31 of the joining part 3. The cutting schedule line 27 extends more to the x-direction other side than the top part 22 on the y-direction one side with respect to the joining part 3.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a packaging material including a cylindrical film joined to a base material and a packaging body using the packaging material.

  A package in which an article to be packaged is packaged appropriately protects the article to be packaged and emphasizes the appearance at a store or the like. FIG. 11 shows an example of a conventional packaging material (see, for example, Patent Document 1). The packaging material X shown in the figure includes a base material 91 and a cylindrical film 92 that opens in the vertical direction in the figure. 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. The base material 91 and the cylindrical film 92 are joined by an adhesive or the like (not shown). The tubular film 92 wraps an object to be packaged such as a cylindrical container. The tubular film 92 is formed with two scheduled cutting lines 921 and a knob 922. The planned cutting line 921 is made of, for example, a perforation line, and is a line in which the tubular film 92 can be easily cut. The knob portion 922 is a portion extending downward from the vicinity of the lower end of the two scheduled cutting lines 921 in the drawing. When taking out the package from the package using the packaging material X, the knob 922 is picked and pulled up in the figure. Thereby, the cylindrical film 92 is cut along the two scheduled cutting lines 921, and the packaged item can be taken out from the cylindrical film 2.

  However, the knob 922 is a portion that can be exposed to the outside of the package. For this reason, the knob | pick part 922 needs to be set as the magnitude | size which does not impair the aesthetics of a package. In addition, when the packaged item is a relatively small cosmetic or the like, the size of the knob portion 921 that can be formed is naturally limited. For this reason, there is a concern that the operation of picking the knob 922 with the fingertips becomes very difficult.

JP 2012-121590 A

  The present invention has been conceived under the circumstances described above, and in removing the package, the cylindrical film can be more easily formed even when a relatively small package is packaged. It is an object of the present invention to provide a packaging material and a package that can be opened.

  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 an article to be packaged, and the tubular film on the base material. A joining material to be joined, wherein the tubular film comprises a planned cutting line for constituting a cutting line at the time of opening, and a cutting starting line that is easier to cut than the planned cutting line. The cutting starting point line is located on one side in the axial direction of the tubular film with respect to the joint in the thickness direction view of the base material and is perpendicular to the axial direction view. In the width direction, which is a direction along the base material, there is a top portion that overlaps with the joint portion, and a first side portion that is connected to the top portion and is located on one side in the width direction. The other side end in the axial direction of the one side portion is closer to the shaft than the one side end in the axial direction of the joint portion. Located in direction other side, the cutting line is in the one side in the widthwise direction with respect to the joint is characterized by extending in the axial direction other side of the top part.

  In preferable embodiment of this invention, the said cutting origin line of the said cylindrical film has the said 1st side part further in the said width direction other side.

  In preferable embodiment of this invention, the said cylindrical film has the said cutting projected line further in the said width direction other side.

  In preferable embodiment of this invention, the said cutting | disconnection origin line of the said cylindrical film is connected with the said top part in either the said width direction one side and the other side with respect to the said junction part, and from the said top part. It further has the 2nd side part extended in the said axial direction one side.

  In preferable embodiment of this invention, the said cutting origin line of the said cylindrical film has a pair of said 2nd side part on the said width direction both sides.

  In a preferred embodiment of the present invention, the planned cutting line reaches the other end in the axial direction of the tubular film.

  In preferable embodiment of this invention, the said cylindrical film has the center seal | sticker part to which the said width direction edge parts of film material were joined, The said top part of the said cutting origin line is the said center. Crosses the seal.

  The package provided by the second aspect of the present invention is characterized by including the packaging material provided by the first aspect of the present invention and the packaged object packaged in the tubular film. .

  According to the present invention, when the package is taken out from the package manufactured using the packaging material, the base material and the package are separated from each other by the operation of separating the base material and the package from each other. Cutting of the cylindrical film starting from the top is started promptly. This cutting proceeds immediately from the top along the first side. And if the said base material and the said junction part are further spaced apart, the cutting | disconnection which arose in the said 1st side part will be propagated to the said cutting projected line. Moreover, the part to which the said junction part was joined among the said cylindrical films by the cutting | disconnection along the said cutting projected line maintains the state joined to the said base material, and leaves | separates from the said to-be packaged object. For this reason, it is possible to avoid the base material from being broken or partially peeled off in the thickness direction, particularly when the base material is mainly a paper material. In this way, the operation of separating the base material and the packaged object can remove the packaged object from the base material and open the tubular film at once. . Therefore, when taking out the package, the tubular film can be opened more easily without deteriorating the appearance of the base material.

  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 an example of the packaging material which concerns on this invention. It is sectional drawing which follows the II-II line | wire of FIG. It is sectional drawing which follows the III-III line of FIG. It is sectional drawing which shows an example of the package which concerns on this invention. It is sectional drawing which shows the package of FIG. It is a perspective view which shows opening of the package of FIG. (A)-(c) is a principal part top view which shows the modification of the packaging material which concerns on this invention. (A)-(c) is a principal part top view which shows the modification of the packaging material which concerns on this invention. (A)-(c) is a principal part top view which shows the modification of the packaging material which concerns on this invention. It is a principal part top view which shows the modification of the packaging material which concerns on this invention. It is a top view which shows an example of the conventional packaging material.

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

  1 to 3 show an example of a packaging material according to the present invention. The packaging material A of this embodiment is provided with the base material 1, the cylindrical film 2, and the junction part 3, and is for comprising the package body B by packaging the to-be packaged object 4 mentioned later. FIG. 1 is a plan view showing the packaging material A. FIG. 2 is a cross-sectional view taken along line II-II in FIG. 3 is a cross-sectional view taken along line III-III in FIG. In the following drawings, the axial direction (up and down direction of the package in FIG. 1) in the present invention corresponds to the x direction, and the width direction (left and right direction of the package in FIG. 1) corresponds to the y direction. The thickness direction (the front-rear direction of the package in FIG. 1) corresponds to the z direction.

  The base material 1 holds the article to be packaged 4 through the tubular film 2 and the joint portion 3. The base material 1 is a base material mainly composed of a so-called non-coated paper such as cardboard, plain paper, or synthetic paper, or a so-called coated paper having a resin layer on the surface, or a synthetic material. A base material mainly composed of a synthetic resin material such as a resin sheet may be employed. In particular, in the present invention, since the load on the base material 1 at the time of opening is small and the base material 1 is difficult to break, a base material mainly made of paper can be preferably used. 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 rectangular shape with the x direction as the longitudinal direction.

  The tubular film 2 is a shrinkable film called a so-called shrink film, and is a member that wraps the package 4 in a close contact state by, for example, thermal shrinkage. In the illustrated packaging material A, the tubular film 2 is in a flat state in which both ends in the y 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 of the tubular film 2 is along the y direction. When such a tubular film 2 is heated, it has a property that the thermal shrinkage along the y direction which is the main stretching direction is significantly larger than the thermal shrinkage along other directions.

  The tubular film 2 has a pair of openings 20 at both ends in the x direction. In addition, the cylindrical film 2 should just be what has at least one of the both ends of x direction opened. The size and aspect ratio of the tubular film 2 are not particularly limited. Further, the tubular film 2 has a center seal portion 29. The center seal portion 29 is a portion where the y-direction end portions of the film material are overlapped and joined to each other in the formation of the tubular film 2, and vertically cuts the tubular film 2 in the x direction. In this example, the center seal | sticker part 29 is provided in the part located in the base material 1 side in the z direction among the folded cylindrical films 2. FIG.

  The tubular film 2 has a cutting starting line 21 and a pair of scheduled cutting lines 27. Each of the cutting starting line 21 and the planned cutting line 27 is a part that is easier to cut than the other parts of the tubular film 2 when the tubular film 2 is opened. Further, when the cutting start line 21 and the planned cutting line 27 are compared, the cutting starting line 21 is easier to cut than the planned cutting line 27. Although the configuration for realizing such a relationship is not particularly limited, in the illustrated example, the cutting start line 21 is configured by a complete cutting line, and the planned cutting line 27 has a plurality of fine cutting lines that are constant. It is constituted by so-called perforation lines arranged in a direction. In this case, the cutting starting point line 21 is already cut, but in the present invention, the already cut configuration is also included in the configuration that is easy to cut.

  The cutting origin line 21 and the pair of scheduled cutting lines 27 are formed in a portion of the folded tubular film 2 that is located on the base material 1 side in the z direction. In FIG. 1, for convenience of understanding, the cutting starting line 21 and the pair of scheduled cutting lines 27 are visible through a portion of the tubular film 2 located on the side opposite to the base 1 in the z direction. Is shown by a line having the same thickness as the outline. The dotted line indicating the planned cutting line 27 indicates a mode in which a plurality of fine cutting lines are arranged.

  The cutting starting point line 21 has a top part 22, a pair of first side parts 23, and a pair of second side parts 24. The cutting start line 21 can take various shapes within a range that satisfies the requirements of the top part 22, the pair of first side parts 23, and the pair of second side parts 24 described below, but the cutting start line 21 in this example is , Z-direction view H shape. The top portion 22 is located on one side in the x direction (upper side in the drawings in FIGS. 1 and 2) with respect to the joint portion 3, and the region occupied in the y direction overlaps the region occupied by the joint portion 3. The shape of the top portion 22 is not particularly limited, but the top portion 22 of this example is a straight line extending in the y direction, and the y direction dimension is larger than the y direction of the joint portion 3. Further, in this example, both ends of the top portion 22 in the y direction are located more outward in the y direction than both ends of the joining portion 3 in the y direction. Note that, unlike this example, one of the ends of the top portion 22 in the y direction may be positioned between the ends of the joint portion 3 in the y direction in the y direction. Furthermore, in this example, the cutting starting point line 21 intersects the center seal part 29. In other words, the center seal portion 29 is cut along the y direction.

  The pair of first side portions 23 are connected to both ends in the y direction of the cutting starting line 21, and are disposed on one side and the other side in the y direction with respect to the joint portion 3, that is, on both sides in the y direction. The axial end 231 of the first side 23 is the other end in the x direction of the first side 23 (the lower end in the drawings in FIGS. 1 and 2). The axial end 231 is the other end in the x direction (the lower side in the drawings in FIGS. 1 and 2) than the axial end 31, which is the one end in the x direction (the upper end in the drawings in FIGS. 1 and 2). ). Although the shape of the 1st side part 23 is not specifically limited, In this example, the 1st side part 23 is a linear form extended from the both ends of the cutting origin line 21 to the x direction other side.

  The pair of second side portions 24 are connected to the top portion 22 and extend from the top portion 22 to one side in the x direction (upper side in the drawings in FIGS. 1 and 2). Further, in the present embodiment, the pair of second side portions 24 are provided on both sides in the y direction in the same manner as the pair of first side portions 23. In addition, the pair of second side portions 24 is connected to one end of the pair of first side portions 23 in the x direction. The second side portion 24 is located on one side in the x direction with respect to the first side portion 23. The shape of the second side portion 24 is not particularly limited, but the second side portion 24 of this example is a linear shape extending from both ends of the top portion 22 (one side end in the x direction of the first side portion 23) to one side in the x direction. It is.

  Taking an example of the size of each part of the cutting starting line 21 in this example, the y-direction dimension of the joint 3 is 10 mm, whereas the y-direction dimension of the top part 22 is 16 mm. That is, the top portion 22 extends by 3 mm on both sides in the y direction from the joint portion 3. Moreover, the y direction distance of the 1st side part 23 and the junction part 3 is 3 mm. The x-direction distance between the cutting origin line 21 and the axial end 31 of the joint 3 is 3 mm, while the x-direction dimension of the first side portion 23 is 6 mm. That is, the first side portion 23 extends 3 mm toward the other side in the x direction from the axial end 31 of the joint portion 3. The dimension in the x direction of the second side portion 24 is 3 mm.

  The pair of scheduled cutting lines 27 are arranged on one side and the other side in the y direction with respect to the joint portion 3, that is, on both sides in the y direction. The planned cutting line 27 extends from the top portion 22 to the other side in the x direction. Further, in the present embodiment, the planned cutting line 27 extends to the other side in the x direction (the lower side in the drawings in FIGS. 1 and 2) than the axial end 231 of the first side portion 23. Although the planned cutting line 27 has various shapes and arrangements, in this example, the planned cutting line 27 is located from the very vicinity of the axial end 231 of the first side portion 23 to the other side in the x direction of the tubular film 2. The opening 20 is reached. Further, the planned cutting line 27 in this example is a straight line along the x direction, and the y direction position coincides with the first side portion 23.

  The joining part 3 joins the base material 1 and the tubular film 2. As shown in FIG. 1, the joint 3 overlaps the cylindrical film 2 in plan view. Although the junction part 3 is made into the strip | belt shape extended in an axial direction, this is an example and the shape of the junction part 3 is set variously. Moreover, the junction part 3 may be comprised by several area | regions mutually spaced apart.

  The bonding portion 3 has various adhesives (for example, a strong adhesive strength between the base material 1 and the tubular film 2, which can withstand the load of the package 4 and can maintain a long-time bonding state in a distribution process and a 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. Moreover, you may comprise the junction part 3 with what is called a double-sided tape instead of an adhesive agent. In order to achieve the effect intended by the present invention described later, it is preferable that the thickness of the joint portion 3 is thicker.

  4 and 5 show an example of a package using the packaging material A. FIG. The package B of this example includes a packaging material A and an article 4 to be packaged. 4 is a cross-sectional view similar to FIG. 2, and FIG. 5 is a cross-sectional view similar to FIG.

  The article to be packaged 4 is packaged by the tubular film 2, and is held on the base material 1 in the package B and is protected by the tubular film 2. As the article to be packaged 4, various products that are sold at stores are adopted, and any product that can be packaged by the tubular film 2 may be used. In the present example, the article to be packaged 4 has an elongated shape with the x direction as the longitudinal direction, which is suitable for packaging with the tubular film 2, and more specifically has a cylindrical shape. Examples of the packaged object 4 having such a shape include a container for cosmetics, and examples of the packaged object 4 include containers for food, beverages, daily necessities, pharmaceuticals, etc. in addition to cosmetics. In particular, the configuration of the present invention can be suitably used for a relatively small container such as a lip balm container. In the case of such a small container, even if a knob portion for inducing cutting along the planned cutting line is provided on the tubular film, it remains in a relatively small knob portion and it is difficult to pick the knob portion. If it is the structure of this invention, since it can cut | disconnect the cylindrical film 2 smoothly by hold | gripping the container itself and peeling from the base material 1 so that it may mention later, it can open easily.

  As shown in FIG. 4, the package 4 has a portion that protrudes to the one side in the x direction from the axial end 31 of the joint portion 3 and the top portion 22 of the cutting starting line 21 of the tubular film 2 in the x direction. doing. Moreover, in this example, the to-be-packaged item 4 has a part which protruded in the x direction one side rather than a pair of 2nd side part 24 of the cutting | disconnection origin line 21. FIG.

  As shown in FIGS. 4 and 5, the tubular film 2 wraps the package 4 so as to be in close contact with the package 4. In the manufacture of the package B, the tubular film 2 of the packaging material A shown in FIGS. 1 to 3 is expanded, and the article 4 to be packaged is inserted from one opening 20. Then, for example, the tubular film 2 is thermally contracted by heating the tubular film 2 to a predetermined temperature. As a result, the contracted tubular film 2 wraps the package 4 in a close contact state.

  Next, taking out the package 4 from the package B will be described with reference to FIG.

  In order to take out the package 4 from the package B, it is necessary to separate the package 4 from the base material 1 and to open the tubular film 2 that packages the package 4. First, a force is applied so as to separate the one side portion in the x direction of the package 4 from the base material 1. Then, the cutting of the tubular film 2 starts from the cutting starting line 21 that is most easily cut in the tubular film 2. By this cutting, the portion of the tubular film 2 that is on the other side in the x direction from the top portion 22 of the cutting starting line 21 and sandwiched between the pair of first side portions 23 is a base material by the bonding force of the bonding portion 3. 1 side remains.

  Further, when the base material 1 and the article to be packaged 4 are separated from each other, the cutting of the tubular film 2 proceeds along a pair of planned cutting lines 27 disposed in proximity to the pair of first side portions 23. Thereby, the part pinched | interposed into a pair of scheduled cutting lines 27 among the cylindrical films 2 becomes strip | belt shape, and it remains on the base material 1 side. And if separation of the base material 1 and the junction part 3 is continued, the cutting | disconnection along a pair of cutting planned line 27 will advance, and it will reach the opening part 20 of the x direction other side of the cylindrical film 2. FIG. As a result, the article to be packaged 4 is completely separated from the base material 1. In addition, the tubular film 2 is cut along the cutting start line 21 and the planned cutting line 27 in the separation of the package 4. In the present example, the portion of the tubular film 2 that is still packaging the article to be packaged 4 on the one side in the x direction from the top part 22 and sandwiched between the pair of second side parts 24 is the article to be packaged. A substantially rectangular portion that is not constrained by 4 is formed. By grasping the rectangular portion, the tubular film 2 remaining on the package 4 is removed. Thereby, the cylindrical film 2 is completely opened, and the taking-out of the package 4 is completed.

  Next, the operation of the packaging material A and the package B will be described.

  According to this embodiment, when the package 4 is taken out from the package B manufactured using the packaging material A, the package 4 is separated from the base 1 as described with reference to FIG. By the operation, cutting of the tubular film 2 starting from the top portion 22 of the cutting starting line 21 is quickly started. This cutting immediately proceeds from the top portion 22 along the first side portion 23. And if the base material 1 and the junction part 3 are further separated, since the 1st side part 23 is located in the y direction one side with respect to the junction part 3, the cutting | disconnection which arose in the 1st side part 23 is In the same way, it is propagated to the planned cutting line 27 located on one side in the y direction. Further, the portion of the tubular film 2 where the joining portion 3 is joined by cutting along the planned cutting line 27 maintains the state where it is joined to the base material 1 and is separated from the package 4. For this reason, it is possible to avoid the base material 1 being broken or partially peeled off in the z direction. Thus, it is possible to remove the package 4 from the base 1 and open the tubular film 2 in a lump by the operation of separating the base 1 and the package 4. . Therefore, when taking out the article 4 to be packaged, the tubular film 2 can be opened more easily without deteriorating the appearance of the base material 1.

  By providing the pair of first side portions 23 on both sides in the y direction, it is possible to cause cutting that progresses in the x direction on both sides in the y direction across the joint portion 3. Thereby, while opening the cylindrical film 2 rapidly, the part joined to the junction part 3 among the cylindrical films 2 is spaced apart from the packaged article 4 and reliably left on the base material 1 side. Can do. Moreover, the effect which leaves the part joined to the junction part 3 among the cylindrical films 2 on the base material 1 side can be heightened by providing a pair of cut line 27 on both sides in the y direction.

  Since the cutting origin line 21 has the second side portion 24, as shown in FIG. 6, the top portion 22 and the first side portion 23 are formed on the portion of the tubular film 2 remaining on the package 4 side. A portion adjacent to the substrate 4 becomes an individual piece that can be slightly separated from the package 4. This piece-like portion can be used as a picking part for picking up the tubular film 2 remaining on the packaged object 4 after the packaged object 4 is separated from the base material 1. By providing the pair of second side portions 24 on both sides in the y direction, it is possible to generate a pick portion suitable for picking, such as a substantially rectangular shape. Moreover, the said knob | pick part is only a part of the cylindrical film 2 closely_contact | adhered to the to-be-packaged object 4 in the package B, and does not yet appear in an external line etc. For this reason, by devising the size, shape, arrangement, and the like of the top portion 22 and the second side portion 24, the appearance of the package B does not appear at all. A knob having a size suitable for the above can be displayed. In particular, when the packaged item 4 is a relatively small container such as a lip balm container, it is preferable in that a picked portion having a size that can be easily picked is obtained without impairing the aesthetic appearance of the package B.

  The pair of planned cutting lines 27 reaches the opening 20 located on the other end side in the x direction. Thereby, the cylindrical film 2 is largely cut | disconnected from the top part 22 of the cutting origin line 21 to the opening part 20 located in the x direction other end side by the operation | movement which spaces apart the to-be-packaged object 4 from the base material 1. FIG. It will be. This is useful for reliably detaching the portion of the tubular film 2 where the joining portion 3 is joined from the portion of the tubular film 2 that remains in the package 4. Moreover, the effect that it becomes easy to remove the part which remained in the to-be-packaged product 4 among the cylindrical films 2 can be anticipated.

  In this example, the top portion 22 of the cutting starting line 21 intersects the center seal portion 29. In this example, since the center seal part 29 is located on the base material 1 side, the center seal part 29 does not appear to overlap the packaged object 4 when the package B is viewed from the front. B can be finished beautifully. When the center seal portion 29 is disposed on the base 1 side, the center seal portion 29 is a portion where the end portions of the film material are joined to each other. When the tubular film 2 is opened, it can usually be a factor that hinders smooth cutting. However, in this example, since the top portion 22 intersects the center seal portion 29, the center seal portion 29 is already cut in the packaging material A and the package B. Therefore, it is possible to avoid the center seal portion 29 from hindering cutting when the tubular film 2 is opened. The center seal portion 29 is a relatively high-rigidity portion that vertically cuts the tubular film 2 in the x direction. By providing the pair of planned cutting lines 27 with the center seal portion 29 interposed therebetween, the center seal portion 29 functions to guide the cutting when performing cutting along the planned cutting line 27. As a result, the pair of planned cutting lines 27 can be smoothly cut to the other end in the x direction.

  7 to 10 show modifications of the present invention. In these drawings, the same or similar elements as those in the above-described example are denoted by the same reference numerals as in the above embodiment.

  7A to 7C, the relative positional relationship between the first side portion 23 of the cutting start line 21 and the planned cutting line 27 is different from the above-described example. In the modification shown in FIG. 5A, the planned cutting line 27 is disposed on the outer side in the y direction with respect to the first side portion 23. In the modification shown in FIG. 5B, the planned cutting line 27 is arranged inward in the y direction with respect to the first side portion 23. However, in the removal of the package 4 described with reference to FIG. 6, the cutting along the first side portion 23 and the first side portion 23 are scheduled to be cut so that the cutting along the first side portion 23 can be appropriately propagated to the planned cutting line 27. A distance in the y direction from the line 27 is set.

  In the modification shown in FIG. 5C, the planned cutting line 27 is located outward in the y direction with respect to the first side portion 23, and one end of the planned cutting line 27 in the x direction is the first side. The portion 23 is located on one side in the x direction from the axial end 231. That is, in the x direction, a part of the first side portion 23 and a part of the planned cutting line 27 are overlapped. Even in such an arrangement, the tubular film 2 can be opened by appropriately setting the distance between the first side portion 23 and the planned cutting line 27.

  In the example shown in FIGS. 1 to 3, the axial end 231 of the first side portion 23 and the end portion of the planned cutting line 27 are very close to each other, and the axial end 231 of the first side portion 23 is scheduled to be cut. The y-direction positions of the ends of the line 27 are the same. Such a configuration is suitable for promptly propagating the cutting of the tubular film 2 from the first side portion 23 to the planned cutting line 27, but from the examples shown in FIGS. As can be understood, the relative positions of the first side portion 23 and the planned cutting line 27 can be variously set within a range in which the cutting is quickly propagated from the first side portion 23 to the planned cutting line 27. .

  FIGS. 8A to 8C show a modification of the number of first side parts 23 and second side parts 24. In the modification shown in FIG. 9A, the first side portion 23 and the second side portion 24 are provided only on one side in the y direction (left side in the figure), and on the other side in the y direction (right side in the figure). Neither the first side portion 23 nor the second side portion 24 is provided. In FIG. 1 to FIG. 3, the portion where the first side portion 23 and the second side portion 24 are provided is replaced with an extended planned cutting line 27. Even in such a modification, it can be expected that the first side portion 23 arranged on one side in the y direction fulfills a function of promoting the progress of cutting. Moreover, the 2nd side part 24 arrange | positioned at the one side of ay direction can produce the piece-like part suitable for holding | grip in the part which remained in the to-be-packaged object 4 among the cylindrical films 2. FIG.

  In the modification shown in FIG. 2B, the cutting starting line 21 has a pair of first side portions 23 but does not have a second side portion 24. In such a modification, similarly to the example shown in FIG. 6, the cutting of the tubular film 2 can be started by separating the base material 1 and the package 4. In this modification, a clear piece-like portion does not occur in the portion of the tubular film 2 remaining in the package 4. However, the cylindrical film 2 is cut along the cutting start line 21 and the planned cutting line 27. Using this cut portion, it is possible to remove the portion of the tubular film 2 remaining in the package 4.

  In the modification shown in FIG. 5C, the first side portion 23 is provided only on one side in the y direction, and the second side portion 24 is provided only on the other side in the y direction. Even in such a modification, smooth cutting of the tubular film 2 can be expected. Further, as can be understood from the modification examples shown in FIGS. 5A to 5C, the number of first side portions 23 and second side portions 24 of the cutting starting line 21 can be variously set. .

  FIGS. 9A to 9C show modifications mainly relating to the shape of the cutting start line 21. In the modification shown in FIGS. 4A and 4B, the first side portion 23 is inclined with respect to the x direction. In the modification shown in FIG. 5A, the first side portion 23 is inclined so as to be located outward in the y direction as it goes to one side in the x direction. In the modification shown in FIG. 5B, the first side portion 23 is inclined so as to be located inward in the y direction as it goes to one side in the x direction. Also according to these modified examples, it is possible to achieve quick cutting from the cutting start line 21.

  In the modification shown in FIG. 3C, the cutting starting line 21 has a top portion 22 and a pair of first side portions 23, and does not have a second side portion 24. The top portion 22 has a circular arc shape in plan view that bulges to one side in the x direction. The first side portion 23 has a circular arc shape in plan view that bulges outward in the y direction. And since the top part 22 and a pair of 1st side part 23 are connected continuously, the cutting | disconnection origin line 21 becomes planar view partial ellipse shape which the x direction other side opened as a whole. As understood from the present modification, the shape of each part of the cutting starting line 21 can be variously set.

  FIG. 10 shows a modification of the specific configuration of the cutting start line 21. In the example shown in FIGS. 1 to 9, the case where the cutting start line 21 is configured as a complete cutting line has been described. This is because the cutting starting line 21 is easier to cut than the planned cutting line 27. It is an example. In the present modification, the cutting starting line 21 is constituted by a perforation line. However, the plurality of fine cutting lines included in the perforation line constituting the cutting starting line 21 are markedly longer than the plurality of fine cutting lines included in the planned cutting line 27. On the other hand, the distance between adjacent fine cutting lines is not as great as the length of the cutting line between the cutting starting line 21 and the planned cutting line 27. That is, the ratio of the cutting line in the perforation line constituting the cutting start line 21 is significantly larger than the ratio of the cutting line in the perforation line constituting the planned cutting line 27. Such a configuration corresponds to an example of a configuration in which the cutting start line 21 is easier to cut than the planned cutting line 27. In this example, in the packaging material A and the packaging body B, the cutting starting point line 21 is not yet cut, and the base material 1 and the packaging object 4 are separated to take out the packaging object 4. When it starts, it becomes a starting point for promptly starting cutting prior to other parts such as the planned cutting line 27.

  The packaging material and package according to the present invention are not limited to the above-described embodiments. The specific configuration of each part of the packaging material and the package according to the present invention can be varied in design in various ways.

A Packaging material B Packaging material 1 Base material 2 Cylindrical film 20 Opening portion 21 Cutting origin line 22 Top portion 23 First side portion 231 Axial end 24 Second side portion 27 Planned cutting line 29 Center seal portion 3 Joint portion 31 Axis Direction end 4 Package

Claims (8)

Base material,
A shrinkable tubular film for wrapping at least a part of an article to be wrapped;
A bonding part that joins the tubular film to the base material,
The tubular film has a planned cutting line for constituting a cutting line at the time of opening, and a cutting starting line that is easier to cut than the planned cutting line,
The cutting origin line is located on one side in the axial direction of the tubular film with respect to the joint in the thickness direction of the base material, and is perpendicular to the axial direction and along the base material In the width direction, and has a top portion that overlaps the joint portion, and a first side portion that is connected to the top portion and located on one side in the width direction,
The other end in the axial direction of the first side portion is located on the other side in the axial direction than the one end in the axial direction of the joint portion,
The cutting line extends on the other side in the axial direction from the top on the one side in the width direction with respect to the joint.   The packaging material according to claim 1, wherein the cutting starting line of the tubular film further has the first side portion on the other side in the width direction.   The packaging material according to claim 1, wherein the cylindrical film further has the planned cutting line on the other side in the width direction.   The cutting origin line of the tubular film is connected to the top on either one side or the other side in the width direction with respect to the joint, and extends from the top to the one side in the axial direction. The packaging material according to any one of claims 1 to 3, further comprising two side portions.   The packaging material according to claim 4, wherein the cutting starting line of the tubular film has a pair of the second side portions on both sides in the width direction.   The packaging material according to any one of claims 1 to 5, wherein the planned cutting line reaches the other end in the axial direction of the tubular film. The tubular film has a center seal portion in which the width direction end portions of the film material are joined together,
The packaging material according to any one of claims 1 to 6, wherein the top portion of the cutting starting line intersects the center seal portion. A packaging material according to any one of claims 1 to 7,
A packaged article packaged in the tubular film;
A package, comprising:

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