JP6131056B2 - Packaging material and package - Google Patents

Description

  The present invention relates to a packaging material that can be cut along one direction, and a packaging body in which an article is packaged using the packaging material.

  2. Description of the Related Art Conventionally, when packaging an article such as food, a packaging material made of a sheet body formed in a planar shape has been used. For example, a packaging material for pillow wrapping that wraps an article by bending and sealing the overlapping ends so as to wrap the article, and wrapping the article along the shape of the article, and the overlapping area with a label, an adhesive, etc. Packaging materials and the like for wrapping articles by using them together are known.

  In addition, a packaging material is also known that is configured so that an article can be easily taken out from the inside even when the article is packaged to form a package as described above. For example, a packaging material in which a linear concave portion (half cut) is formed on a sheet body constituting the packaging material is known. Since such a packaging material can be easily cut with a half cut, even when the packaging body is formed, the packaging material can be cut and the article can be easily taken out.

  Also, a packaging material in which a strip film is bonded to the sheet body along the cutting direction of the packaging material, and a pair of cuts are formed in the sheet body along both edges in the width direction at one longitudinal end portion of the strip film. It is known (see Patent Document 1). In such a packaging material, the sheet body in the region between the pair of cuts and one end of the belt-like film are picked with fingers, and moved along the longitudinal direction of the belt-like film, so that the cutting of the packaging material can be triggered by the cut. At the same time, the packaging material is cut along the widthwise edges of the strip film. Thereby, the cutting direction of the packaging material can be controlled along the longitudinal direction of the belt-like film.

JP 2008-207826 A

  However, as described above, the packaging material using the strip-shaped film may control the cutting direction of the packaging material along the longitudinal direction of the strip-shaped film depending on the direction of the force applied to the packaging material when the packaging material is cut. May not be possible (for example, the packaging material may be cut away from the strip film). For this reason, the packaging material in a state where the article is packaged is not cut at the intended position, and the article may spill from the inside of the packaging body when the packaging body is cut.

  In addition, since it is necessary to form a packaging material by laminating a belt-like film to the sheet body, the process for producing the packaging material becomes complicated, and the efficiency when producing the packaging material is low. .

  Therefore, the present invention provides a packaging material that can effectively control the cutting direction without using any other member than the sheet body, and a packaging body in which an article is packaged using the packaging material. It is an issue to provide.

The packaging material according to the present invention is composed of a sheet body that is formed into a planar shape and has a linear cut portion formed so as to intersect in one direction, and is configured to be able to cut from both ends of the linear cut portion as a base point. The sheet body is provided with a plurality of recess pairs formed of a pair of recesses formed linearly along one direction at intervals in another direction orthogonal to the one direction, Of the two recess pairs selected from the plurality of recess pairs, one end portion of the linear cut portion is positioned between a pair of recesses constituting one recess pair, and the other recess pair is configured. The other end portion of the linear cut portion is located between the pair of concave portions.

According to such a configuration, the sheet main body includes a plurality of pairs of recesses formed of a pair of recesses formed along one direction with an interval in the other direction orthogonal to the one direction. Of the two pairs of recesses selected from the pair, one end of the linear cut portion is located between a pair of recesses constituting one pair of recesses, and the pair of recesses constituting the other pair of recesses Since the other end portion of the linear cut portion is positioned therebetween, the cutting direction can be effectively controlled when the packaging material is cut from both ends of the linear cut portion.

  Specifically, by forming a pair of recesses, a region having a thickness smaller than other regions is formed in the region of the sheet body where the recesses are formed. That is, the strength of the region where the recess is formed in the packaging material is weaker than the strength of the other regions.

  For this reason, when a region between the pair of recesses constituting the pair of recesses (hereinafter, also referred to as a cutting region) is cut with both ends of the linear cut portion as base points, the direction intersects the one direction. When cutting has started, or when the cutting direction has shifted in the direction that intersects the one direction in the middle of cutting, that is, when the cutting direction has moved toward the outside of the cutting region. In addition, since the packaging material is cut by the pair of recesses, it is possible to prevent the outer region from being cut from the cutting region. Moreover, since the recessed part is formed along one direction, a packaging material is cut | disconnected along one direction because the packaging material is cut | disconnected by a recessed part.

  As described above, it is possible to prevent the packaging material from being cut from the inside to the outside region of the cutting region, and the packaging material is cut along the one direction by being cut at the concave portion. Therefore, the cutting direction of the packaging material can be effectively controlled without using other members than the sheet main body. Thereby, the packaging material which can control a cutting direction effectively can be produced only from a sheet | seat main body.

  Further, since both ends of the linear cut portion are located in two cutting regions, and the cutting regions are formed with an interval in the other direction, the two cutting regions are along the one direction. By cutting | disconnecting, when a packaging material is cut | disconnected as mentioned above, the area | region (specifically area | region between recessed part pairs) in a packaging material is isolate | separated from a packaging material. Thereby, the width of the opening formed when the packaging material is cut in a state where the article is packaged can be set by setting the interval between the pair of recesses (that is, the interval between the cutting regions). .

The packaging body according to the present invention is composed of a sheet body formed in a planar shape and having a linear cut portion formed so as to intersect in one direction, and can be cut from both ends of the linear cut portion as a base point. A package body in which an article is packaged using the packaged material, wherein the sheet body has a pair of recesses formed linearly along one direction in a direction perpendicular to the one direction. A plurality of the recesses are provided at intervals, and one end of the linear cut portion is positioned between a pair of recesses constituting one recess pair among the two recess pairs selected from the plurality of recess pairs. And the other end part of the said linear cut | notch part is located between a pair of recessed part which comprises the other recessed part pair, It is characterized by the above-mentioned.

  As described above, according to the present invention, it is not necessary to use a member other than the sheet main body, and the cutting direction can be controlled effectively.

The perspective view of the packaging material which concerns on this embodiment, and its partial enlarged view. (A) is the schematic which showed the state by which the recessed part was formed in the sheet | seat main body using the apparatus which forms a recessed part in the sheet | seat main body used for the packaging material which concerns on the same embodiment, Comprising: The cross-sectional shape of a sheet | seat main body is shown. (B) is the perspective view which looked at the state by which the recessed part was formed in the sheet | seat main body from the downward direction of the sheet | seat main body using the apparatus which forms a recessed part in the packaging material which concerns on the embodiment. (A) is a perspective view of the package body in which goods are packaged using the packaging material which concerns on the embodiment, (b) is the perspective view which showed the state by which the package body concerning the embodiment was opened.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

As shown in FIG. 1, the packaging material 1 according to the present embodiment includes a sheet body 2 formed in a planar shape. Specifically, the packaging material 1 is configured by using a sheet body 2 formed in a strip shape so that one direction is a longitudinal direction. Such a sheet body 2 is composed of a resin film that can be bent. Incidentally, one-way packaging material 1, one-way seat body 2 (i.e., longitudinal direction) corresponds to the other direction perpendicular to the direction of the packaging material 1, another direction perpendicular to one direction of the seat body 2 (Ie, in the width direction). One surface of the packaging material 1 corresponds to one surface of the sheet main body 2, and the other surface of the packaging material 1 corresponds to the other surface of the sheet main body 2.

The sheet body 2 has a recess 2a formed linearly along one direction (specifically, the longitudinal direction). Further, the sheet body 2 includes a pair of recesses 2b including a pair of recesses 2a and 2a formed along one direction (specifically, the longitudinal direction). The pair of recesses 2a, 2a constituting the pair of recesses 2b are formed with a gap in the other direction (width direction) orthogonal to one direction (specifically, the longitudinal direction) of the sheet body 2.

  The sheet body 2 includes a plurality of recesses 2b spaced apart in the other direction (width direction). In the present embodiment, the sheet body 2 is provided with two pairs of recesses 2b and 2b. Further, the two recess pairs 2b, 2b are formed so as to be symmetrical with respect to the center portion in the width direction of the sheet body 2.

  The concave portion 2a is formed in a shape in which one surface side of the sheet main body 2 is cut out in a linear shape (specifically, a straight line shape), and the region where the concave portion 2a in the sheet main body 2 is formed is The thickness is thinner than the region where the recess 2a is not formed. Although the shape of such a recess 2a is similar to a conventionally known half-cut, the recess 2a according to the present embodiment has a marked improvement in cutting directionality and ease of cutting compared to the conventional half-cut. It is special.

  Specifically, the concave portion 2a according to the present embodiment makes the thickness in the linear region on the sheet body 2 thinner than the original thickness, and on both sides of the linear region (groove portion) having a reduced thickness. A region (raised portion) that is thicker than the original thickness of the sheet body 2 is formed along the groove portion. That is, the concave portion 2a according to the present embodiment includes a groove portion and a pair of raised portions formed on both sides of the groove portion. As a result, in the recess 2a, the strength of the linear thin portion (that is, the groove portion) becomes weaker than the surrounding strength, whereas the strength of the raised portions on both sides of the linear thin portion is the strength of the surrounding portion. Higher than that.

  Here, the formation method of the recessed part 2a which concerns on this embodiment is demonstrated. As shown in FIGS. 2A and 2B, the recess 2a includes a horn H to which an ultrasonic wave having a predetermined frequency is applied, and a receiving material B that sandwiches the sheet main body 2 together with the horn H. It is formed using a forming apparatus (not shown).

  The horn H is configured to apply vibration energy to the sheet main body 2 to melt the sheet main body 2 when ultrasonic waves having a predetermined frequency are applied. On the other hand, the receiving material B is formed so that the width of the front end portion sandwiching the sheet main body 2 together with the horn H becomes narrower toward the front end. Specifically, the receiving material B has a disk-like shape, and is formed such that a region outside the center tapers toward the outer peripheral edge (that is, the leading end portion sandwiching the sheet main body 2). . In addition, the receiving material B is fixed so as to be rotatable along one direction (specifically, the longitudinal direction) of the sheet main body 2 with the sheet main body 2 sandwiched between the receiving member B and the horn H.

  Then, in a state where the sheet main body 2 is sandwiched between the horn H and the receiving material B, the concave portion 2a is formed by applying ultrasonic waves to the horn H to dissolve the sheet main body 2. Specifically, in a state where the sheet main body 2 is sandwiched between the horn H and the receiving material B, along one direction of the sheet main body 2 (that is, a direction orthogonal to the width direction of the front end portion of the receiving material B). An ultrasonic wave is applied to the horn H while applying a tension T to the sheet body 2. Then, the sheet body 2 is linearly moved relative to the horn H and the receiving material B along one direction.

  Thereby, vibration energy generated by applying ultrasonic waves to the horn H is supplied to the sheet main body 2, and the sheet main body 2 is melted corresponding to the shape of the front end portion of the receiving material B, along the one direction. A groove 2c is formed. Further, the melted portion is pushed to both sides of the groove 2c by the tip of the receiving material B, so that the raised portions 2d and 2d are formed along the one direction on both sides of the groove 2c. Since the groove portion 2c and the pair of raised portions 2d and 2d are formed in this way, the pair of raised portions 2d and 2d approach each other due to the action of the tension T on the sheet body 2, and therefore, as shown in FIG. Thus, the recess 2a is formed in a long and deep groove.

  Returning to FIG. 1, the sheet body 2 includes a linear cut portion 2 e so as to intersect in one direction (longitudinal direction). The notch 2e has a pair of recesses 2b, 2b, one end of which is located between the pair of recesses 2a, 2a constituting one recess pair 2b and the other pair of recesses 2b. The other end is formed between the recesses 2a and 2a.

In addition, the cut portion 2e includes a first region 2f formed in a linear shape so as to intersect (substantially orthogonal ) one direction (longitudinal direction) of the sheet body 2, and the sheet body 2 from both ends of the first region 2f. It is comprised from the 2nd area | regions 2g and 2g formed linearly along one direction (longitudinal direction). Specifically, the cut portion 2e is formed so that the first region 2f and the second regions 2g, 2g are U-shaped. The both end portions of the first region 2f and the second regions 2g, 2g are formed between the pair of recesses 2a, 2a. As a result, a grip portion 2h that can be gripped with a finger or the like is formed in a region surrounded by the first region 2f and the second regions 2g and 2g in the sheet main body 2.

  Further, the cut portion 2e is closed from the other surface of the sheet body 2 by the closing film 2i. Specifically, the outer peripheral portion of the closing film 2i is heat-sealed to the sheet body 2 in a state where the closing film 2i is disposed so as to cover the notch portion 2e from the other surface of the sheet body 2, so that the cutting is performed. The part 2e is closed.

  The packaging material 1 formed as described above is a planned bending line along one direction (longitudinal direction) while being conveyed along one direction (longitudinal direction) with the article placed on the other surface. It is bent at L1, L2, and L3 to wrap the article, and ends overlapping in one direction (longitudinal direction) are sealed to form a cylinder. And the package (pillow package) 10 of a packaging form as shown to Fig.3 (a) can be obtained by being sealed and cut | disconnected along another direction (width direction).

  And when taking out articles | goods from such a package 10, the knob | pick part 2h formed of the notch part 2e is picked with a finger | toe, and the knob | pick part 2h is moved along the recessed part 2a. Thereby, the area | region (henceforth a cutting area | region) between a pair of recessed parts 2a and 2a which each comprises two recessed part pairs 2b and 2b is cut | disconnected along the recessed part 2a. Thereby, as shown in FIG.3 (b), the package 10 is opened and it becomes possible to take out articles | goods.

  As mentioned above, according to the packaging material which concerns on this invention, it is not necessary to use other members other than a sheet | seat main body, and a cutting direction can be controlled effectively.

  That is, the packaging material 1 is formed by forming a pair of recesses 2a and 2a in the sheet main body 2 so that the region of the sheet main body 2 in which the recess 2a is formed is thinner than the other regions (groove portions). 2c) is formed. That is, the intensity | strength of the area | region in which the recessed part 2a in the packaging material 1 was formed becomes weaker than the intensity | strength of the other area | region.

  For this reason, when the cutting region is cut with both ends of the linear cut portion 2e as the base point, if the cutting has started in the direction intersecting the one direction, Even when the cutting direction is shifted in a direction crossing the direction, that is, when the cutting direction is toward the outside of the cutting region, the packaging material 1 is cut by the pair of recesses 2a and 2a. It is possible to prevent the region outside the cutting region from being cut. Moreover, since the recessed part 2a is formed along one direction, the packaging material 1 is cut | disconnected along one direction because the packaging material is cut | disconnected by the recessed part 2a.

  As described above, the packaging material 1 can be prevented from being cut from the inner side to the outer side of the cutting region, and the packaging material is cut along the one direction by being cut at the recess 2a. Since 1 is cut, the cutting direction can be effectively controlled even with the packaging material 1 composed of only the sheet body 2. Thereby, the packaging material 1 in which the cutting direction is controlled can be easily produced from only the sheet body 2.

  Furthermore, both ends of the linear cut portion 2e are located in two cutting regions, and the cutting regions are formed with an interval in the other direction. When the cutting region is cut along the one direction, the region between the two cutting regions in the packaging material 1 (specifically, the region between the two recess pairs 2b and 2b) is separated from the packaging material 1. An opening is formed. That is, the width of the opening formed in the package 10 when the packaging material 1 is cut by setting the interval between the two recesses 2b, 2b (that is, the interval between the two cutting regions). It can be set arbitrarily.

Moreover, since the recessed part 2a is comprised from the groove part 2c and a pair of protruding parts 2d and 2d, the cutting direction of the packaging material 1 can be controlled more reliably. Specifically, even when the cutting of the cutting region proceeds from the inside to the outside of the cutting region, the strength of the raised portion 2d is higher than the strength of the cutting region, so that the cutting direction is inside the cutting region. It is corrected (specifically along the cutting area). Thereby, it can prevent that the packaging material 1 is cut | disconnected from the inner side of a cutting area | region over the protruding part 2d to the outer side of a cutting | disconnection area | region.
Further, even if a force that causes the cutting of the packaging material 1 beyond the raised portion 2d from the inside of the cutting region is applied to the packaging material 1 (packaging body 10), the strength of the groove 2c is increased. Since it is weaker than the strength of 2d, the packaging material 1 is cut at the groove 2c. Thereby, it can prevent that the packaging material 1 is cut | disconnected from the inner side of a cutting area | region over the protruding part 2d and the groove part 2c, and the outer side of a cutting | disconnection area | region.

  In addition, the packaging material and package which concern on this invention are not limited to the said embodiment, A various change is possible in the range which does not deviate from the summary of this invention. Further, the configurations and methods of the plurality of embodiments described above may be arbitrarily adopted and combined (even if the configurations and methods according to one embodiment are applied to the configurations and methods according to other embodiments). Of course, it is of course possible to arbitrarily select configurations, methods, and the like according to various modifications described below and employ them in the configurations, methods, and the like according to the above-described embodiments.

  For example, in the said embodiment, although the cut | notch part 2e is formed in linear form, such linear form includes what has a certain amount of width. That is, an opening may be formed in a region where the cut portion is formed by forming a linear cut portion in the sheet body 2.

  Moreover, in the said embodiment, although the recessed part 2a was comprised from the groove part 2c and a pair of protruding parts 2d and 2d, it is not limited to this, The recessed part which consists only of the groove part 2c may be sufficient.

  Moreover, in the said embodiment, although two recessed part pairs 2b and 2b are formed in the sheet | seat main body 2, it is not limited to this, Three or more recessed pair pairs 2b ... are formed and formed. Alternatively, two of the plurality of recess pairs 2b... May be selected and used.

Moreover, in the said embodiment, although the notch part 2e is formed in U shape, it is not limited to this, You may form so that the notch part 2e may become H shape. Specifically, a pair of linear second regions are formed so as to be substantially orthogonal to the linear first region, and between both end portions of the pair of second regions (for example, substantially central portion). Both end portions of the first region may be connected to form a substantially H-shaped cut portion.

  DESCRIPTION OF SYMBOLS 1 ... Packaging material, 2 ... Sheet main body, 2a ... Concave part, 2b ... Concave part pair, 2c ... Groove part, 2d ... Raised part, 10 ... Packaging

Claims (2)

It is a packaging material that is formed from a sheet body that is formed into a planar shape and has a linear cut portion formed so as to intersect in one direction, and is configured to be cut with both ends of the linear cut portion as base points,
The sheet body includes a plurality of recess pairs each formed of a pair of recesses formed linearly along one direction and spaced apart from each other in a direction perpendicular to the one direction, and selected from the plurality of recess pairs. Among the two pairs of recesses, one end of the linear cut portion is located between a pair of recesses constituting one pair of recesses, and the line between the pair of recesses constituting the other pair of recesses A packaging material, characterized in that the other end of the cut portion is located. Article using a packaging material that is formed from a sheet body that is formed into a planar shape and has linear cut portions formed so as to intersect in one direction, and that can be cut from both ends of the linear cut portions. A package in which
The sheet body includes a plurality of recess pairs each formed of a pair of recesses formed linearly along one direction and spaced apart from each other in a direction perpendicular to the one direction, and selected from the plurality of recess pairs. Among the two pairs of recesses, one end of the linear cut portion is located between a pair of recesses constituting one pair of recesses, and the line between the pair of recesses constituting the other pair of recesses The other end part of a cut part of a shape is located, The package body characterized by the above-mentioned.

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