JP5717415B2 - Wrap film storage box - Google Patents

Description

  The present invention particularly relates to an opening piece of a wrap film storage box in which a wrap film for food packaging, an aluminum foil, a cooking sheet or the like (hereinafter referred to as a wrap film) is wound.

  A wrap film is usually a wound cylindrical body wound around a paper core, and is stored in a rectangular box made of paper, and is adhered to the front plate portion of the wrap film storage box with glue or the like. By cutting off the opening piece, the lid can be opened and closed prior to use of the wrap film. Metal, paper, and resin saw blades are known as wrap film cutting means, and the saw blade is generally disposed at the tip of the lid piece, but the front plate side edge of the bottom plate In some cases, it may be arranged at the upper edge of the front plate.

  In such a wrap film storage box, it is not opened at the distribution stage until it reaches the consumer, and on the other hand, it is easy to remove the opening piece at the time of use by the consumer, and the appearance quality of the wrap film storage box is maintained and is unsightly. There are conflicting demands for not being in a peeled state, and various proposals have been made.

  For example, as shown in FIG. 16, the opening piece 20 provided in the wrap film storage box 1 has a cut line 21 and a semicircle cut 40. On the other hand, the bonding portion 30 of the front plate 14 to which the unsealing piece 20 is bonded has a circular or elliptical half-cut line 31 and a non-varnish coating portion inside the half-cut line 31. With such a design, the peeled piece 20 is peeled off (cut off) in one direction (from the right side to the left side in FIG. 16), so that delamination occurs at the half-cut line 31 portion of the front plate 14 (the front plate 14 has a plurality of layers). And peeling between any of the layers.) Can be opened. The semicircular cut 40 of the opening piece 20 has an effect of blocking the peeling when delamination occurs on the side of the opening piece 20 without delamination at the half cut line 31 portion of the front plate 14.

  In the technique described in Patent Document 1, there is one in which the shape of the adhesive portion is flattened so that delamination is likely to occur at the half-cut line portion of the front plate. Moreover, in the technique of patent document 2, there exists what provides the process which makes an used paper layer osmose | permeate an used paper layer. Furthermore, in the technique of Patent Document 3, a packaging container in which a protrusion is provided at the right end of the opening piece has been proposed.

Japanese Patent No. 3142969 Japanese Patent No. 3955387 Japanese Patent Laid-Open No. 10-230933

  In the technique described in the above-mentioned Patent Document 1, it is effective to effectively use the amount of adhesive to be applied in a strip shape by making the shape of the adhesive portion flattened, making it easy to cause local layer peeling. ing. Thereby, it becomes easy to remove the opening piece from the adhesive portion on the front plate side. However, even in this case, due to the adhesive strength of the adhesive portion, the opening piece is locally broken during opening, and the strength of the opening piece itself is reduced at the folded portion, or the opening piece is on the side bonded to the adhesive. It may start to tear from the surface layer, and as a result, the opening piece may be torn off halfway. In particular, in the latter half of the cutting of the opened piece, the gripping part of the opened piece is separated from the part that is being cut, so the cutting operation is not stable, and the opening angle of the opened piece becomes large and the opened piece is easily broken. To do. As a result, the strength of the unsealed piece itself is reduced, and the unsealing speed is further increased. Therefore, a larger stress is applied, and the unsealed piece is easily broken.

  Moreover, in the technique of patent document 2, although peeling is controlled by making an adhesive penetrate | infiltrate into a used paper layer, it has not led to the fundamental solution of tearing of an opening piece similarly to the above.

  On the other hand, in the technique of Patent Document 3, the protrusion provided on the opening piece is a guide for the correct opening direction to a blind person, and the effect on problems such as tearing of the opening piece and poor appearance is mentioned. Absent.

  An object of the present invention is to provide a wrap film storage box that prevents tearing of an opening piece at the time of opening, maintains the appearance quality of a wrap film storage box, and does not become an unsightly cut state.

As a result of intensive studies, the present inventors have found that the above-mentioned various problems can be solved by arranging embossing on the opened pieces, and have made the present invention. That is, the present invention provides the following (1) to (7).
(1) A wrap film storage box capable of opening a box body by cutting the opening piece along the longitudinal direction of the box body, wherein the box body has an adhesive portion for bonding the opening piece along the longitudinal direction. The opening piece is provided with a vertical embossing perpendicular to the cutting direction, and the embossing is at least a position corresponding to the vicinity of the rear side of the adhesive portion that is the frontmost in the cutting direction. Wrapped film storage box. In addition, in this specification, the front with respect to a cutting direction is a cutting end side, and back is a cutting start side.
(2) The wrap film storage box according to (1), wherein the emboss is provided at a position corresponding to the vicinity of the rear side of each bonding portion.
(3) A wrap film storage box capable of opening the box body by cutting the opening piece along the longitudinal direction of the box body, wherein the box body has an adhesive portion for bonding the opening piece along the longitudinal direction. The wrapping piece is provided with a horizontal embossing along the cutting direction, and the embossing is provided at a position across at least the rear end of the bonding portion in the cutting direction. Film storage box.
(4) The wrap film storage box according to (3), wherein the emboss is provided at least in a position extending from the vicinity of the rear side in the cut direction of the adhesive portion to the vicinity of the front side.
(5) The wrap film storage box according to (4), wherein the embossing is provided at a position extending from the rear side to the front side from the frontmost adhesive part to the front side from the rearmost adhesive part with respect to the cutting direction. .
(6) The wrap film storage box according to any one of (1) to (5), wherein the embossing includes a plurality of linear dents.
(7) The wrap film storage box according to any one of (1) to (6), wherein the emboss is formed such that a front side of the unsealed piece is recessed and a back side is projected.

  According to the present invention, tearing of the unsealed piece at the time of unsealing can be prevented, so that it is not unsightly due to unsuccessful unsealing, and the appearance quality after unsealing is very good. Further, by preventing tearing of the opening piece, the operation in the vicinity of the cutting tool fixed to the wrap film storage box when opening again can be suppressed, so that safety is also improved.

It is a schematic perspective view which shows a wrap film storage box. It is a schematic plan view which shows the expanded view of a wrap film storage box. It is a front view of the wrap film storage box which has vertical embossing. It is an expanded sectional view of the embossment of an opening piece. It is a schematic perspective view which shows the state at the time of opening of a wrap film storage box. It is explanatory drawing which shows the state of the opening piece at the time of opening. It is explanatory drawing which shows the state of the opening piece at the time of the conventional opening. It is a front view of a wrap film storage box in case there exists embossing with respect to each adhesion part. It is a front view of a wrap film storage box when there is embossing on both sides of an adhesion part. It is a front view of a wrap film storage box in case there exists embossing inside an adhesion part. It is a front view of the wrap film storage box which has horizontal embossing. It is explanatory drawing which shows the state of the opening piece at the time of opening. It is a front view of a wrap film storage box in case there exists embossing which cross | intersects an adhesion part. It is a front view of the wrap film storage box which has embossing over the full width of an opening piece. It is a table | surface which shows evaluation of an Example and a comparative example. It is a schematic perspective view which shows the conventional wrap film storage box.

  The present invention will be specifically described below. In addition, the following embodiment is an illustration for demonstrating this invention, and this invention is not limited only to the embodiment. In addition, the same code | symbol is attached | subjected to the same element and the overlapping description is abbreviate | omitted. In the drawings, positional relationships such as up, down, left, and right are based on the positional relationships shown in the drawings unless otherwise specified. Furthermore, the dimensional ratios in the drawings are not limited to the illustrated ratios.

  FIG. 1 is a schematic perspective view showing a wrap film storage box, and FIG. 2 is a development view showing a surface of the wrap film storage box shown in FIG.

  As shown in FIGS. 1 and 2, the wrap film storage box 1 has a rectangular parallelepiped shape as a whole. For example, a lid 13 including a lid piece 10, a lid plate 11, a side lid piece 12, a front plate 14, and a bottom plate. 15, a film accommodating portion 19 including a rear plate 16, side plates 17, a folded plate 18, and the like. The folding plate 18 is a portion that is connected to the upper edge of the front plate 14 and is folded inside the storage box 1. For example, a wrap film wound around a cylindrical core can be accommodated in the film accommodating portion 19.

  Examples of the base paper constituting the wrap film storage box 1 include, but are not limited to, cardboard, coated cardboard, cardboard, and the like, and papers known in the industry are appropriately selected and used. Can do. The base paper may be one obtained by embossing, printing, or laminating using polyethylene or the like on these materials.

  An opening piece 20 is provided on the front surface of the wrap film storage box 1 for sealing the lid portion 13 before use and opening the lid portion during use. The opening piece 20 is formed in a band shape along the longitudinal direction of the storage box 1, and is connected to the tip of the lid cover piece 10 via a cut line 21. A metal saw blade 22 is caulked and fixed with caulking claws along the longitudinal direction of the storage box 1 on the back side of the front end portion of the lid piece 10. A desired amount of wrap film drawn from the film storage unit 19 during use is cut by the metal saw blade 22. The material of the wrap film cutting tool is not particularly limited as long as it is a conventionally known material such as metal, plastic, vulcanized fiber, etc., and the shape of the cutting tool is linear, V-shaped or arched. Moreover, the site | part by which the cutting tool is arrange | positioned may be any of the front-end edge part of the lid cover piece 10, the upper edge part of the front board 14, and the ridgeline part between the bottom board 15 and the front board 14.

  As shown in FIGS. 2 and 3, a plurality of bonding portions 30 for bonding the unsealing pieces 20 are provided along the longitudinal direction below the front plate 14. The bonding portion 30 has a circular or elliptical half-cut line 31 formed on the outer edge thereof. The inside of the half-cut line 31 of the bonding part 30 is bonded to the opening piece 20 by an adhesive applied to the back surface of the opening piece 20. Varnish is applied to portions other than the adhesive portion 30 of the front plate 14 corresponding to the opening piece 20 and does not adhere to the adhesive of the opening piece 20.

  As shown in FIG. 3, the opening piece 20 is provided with a vertical emboss 50 perpendicular to the cutting direction X by embossing. The emboss 50 is provided at a position corresponding to the vicinity of the rear side of the foremost adhesive portion 30 in the cutting direction X (hereinafter referred to as “frontmost adhesive portion 30A”). The distance between the emboss 50 and the rear end 30b of the bonding portion 30 is preferably within 2 cm. The emboss 50 is composed of a plurality of, for example, two linear recesses. For example, as shown in FIG. 4, the front surface side is recessed and the back surface side protrudes. It is preferable that the emboss 50 protrudes 0.05 mm or more from the other part on the back surface side. More preferably, it is 0.10 mm or more, and the effect by the emboss 50 is more easily obtained by making the base paper deep enough not to tear.

  The shape or the like of the emboss 50 is not particularly limited, but may be rectangular or elliptical. In the case of a rectangle, the four corners may be rounded.

  A semicircle cut 40 may be formed in the opening piece 20 at a position corresponding to the bonding portion 30 of the front plate 14. In such a case, if delamination occurs in the bonding portion of the opening piece 20. The peeling is stopped at the semicircular cut 40. The semicircle cut 40 may not be present.

  When opening the wrap film storage box 1 as described above, the opening piece 20 is cut from one end along the cutting direction X as shown in FIG. At this time, the grip side of the opening piece 20 is folded back in the cutting direction X and pulled. At this time, in the bonding portion 30 of the front plate 14, delamination occurs inside due to the half-cut line 31, the surface layer 30C side of the bonding portion 30 is separated from the front plate 14 side together with the opening piece 20, and the opening piece 20 is cut off. To go. When the cut portion of the opening piece 20 reaches the bonding portion 30, stress (resistance) is applied to the opening piece 20 by the adhesive force. In particular, when approaching the forefront bonding portion 30A, the cut portion of the opening piece 20 is separated from the knob portion, and the cutting operation is not stable, and the cutting angle of the opening piece becomes large. Since the strength of the piece itself is reduced, and the cutting speed is increased, a larger stress is applied.

  According to the present embodiment, since the emboss 50 is formed at least in the vicinity of the rear side of the foremost bonded portion 30A, even when stress is applied to the opened piece 20 just before the bonded portion 30 when the opened piece 20 is cut off, Stress is dispersed at the embossed portion 50, and even if the opening piece is broken, the opening piece is not cracked or torn, and the opening piece 20 is prevented from being broken.

  In particular, as shown in FIG. 6, when a plurality of embosses 50 are formed, a relatively gentle bending occurs when the unsealed pieces 20 are cut off, the folding angle of the entire unsealed pieces 20 is secured, and the stress at each embossed 50 portion is Since it can be made small, generation | occurrence | production of the crack of the opening piece 20, etc. can be prevented more effectively. As a result, for example, as shown in FIG. 7, the opening piece 20 is not locally broken at an acute angle to cause a crack or tear, and the tearing of the opening piece 20 is prevented. Therefore, the appearance quality of the wrap film storage box 1 is maintained even after opening, and the usability is also good.

  Further, the emboss 50 is formed such that the front side of the unsealed piece 20 is recessed and the back side protrudes. In this case, the strength and the bending of the emboss 50 are sufficiently ensured, and the tearing of the unsealed piece 20 is more effectively prevented as shown in the examples described later.

  In the above-described embodiment, the emboss 50 is provided only in the vicinity of the rear side of the foremost bonding portion 30A. However, as shown in FIG. Also good. In this case, the opening piece 20 is prevented from being torn and torn at each bonding portion 30.

  In addition, the embossing 50 may not be provided with respect to all the adhesion parts 30, and may be provided with respect to the some adhesion part 30 including the back side vicinity of 30 A of forefront adhesion parts at least. Further, when the opening piece 20 is configured to be cut from both sides, both directions along the opening piece 20 are the cutting direction X as shown in FIG. That is, the embosses 50 may be provided in the vicinity of both sides of the bonding portion 30. Further, as shown in FIG. 10, the embossing 50 may be provided not only on the outside of the bonding part 30 but also at a position corresponding to the inside of the bonding part 30. Furthermore, the embossing 50 is not limited to two, and may be a single emboss 50 or three or more.

  In the above embodiment, the vertical emboss 50 is formed on the opening piece 20, but a horizontal embossing along the cutting direction X of the opening piece 20 may be formed.

  For example, as shown in FIG. 11, the emboss 60 is provided at the position of the opening piece 20 so as to straddle the rear end 30 b in the cutting direction X of the bonding portion 30. Since a portion where the emboss 60 is provided has high strength and curving is suppressed, as shown in FIG. 12, when the cutting of the opening piece 20 reaches the rear end 30 b of the most resistant bonding portion 30, the opening piece 20 is provided. Folds are suppressed. For this reason, it is prevented that the opening piece 20 is torn and torn in the bonding portion 30.

  In the embodiment, the horizontal emboss 60 may be provided at a position from the vicinity of the rear side in the cutting direction X to the vicinity of the front side with respect to the adhesive portion 30 as shown in FIG. By doing so, when the unsealing passes through the adhesive portion 30, the unfolding of the unsealed piece 20 is surely prevented and the tearing of the unsealed piece 20 is prevented.

  Moreover, in the said embodiment, as shown in FIG. 14, the horizontal embossing 60 of the opening piece 20 extends from the rear side of the last adhesion part 30B closest to the cutting start side to the front side of the frontmost adhesion part 30A. You may form in the substantially full width of a longitudinal direction. In this case, the folding of the opening piece 20 is prevented more reliably.

  The number of horizontal embosses 60 can be arbitrarily selected. Further, the horizontal emboss 60 may be formed such that the front side of the unsealed piece 20 is recessed and the back side protrudes.

  Although the number of the adhesion parts 30 in the above embodiment is not specifically limited, It is preferable to provide 2-10 adhesion parts in the varnish application part of the lower part of the front board 14. FIG. By doing so, it is possible to sufficiently secure the sealing performance at the distribution stage. Moreover, since it is not necessary to raise the adhesive strength of each adhesion part 30 more than necessary by providing the adhesion part 30 in multiple places, the resistance at the time of opening with the opening piece 20 can be suppressed as much as possible. Furthermore, since the marks of the bonding portion 30 are also limited, it is difficult to lead to a decrease in appearance quality. Also as the form of the bonding part 30, a method of limiting the area, a method of performing a half-cut process around the bonding part 30 of the front plate 14, a method of applying a broken line around the bonding part 30 of the front plate 14, and the like Either method may be used. Also, the shape of the bonding portion 30 is not particularly limited, but is circular, oval, triangular, quadrangular, flattened oval, oval flattened asymmetrically in the width direction of the wrapping film storage box 1, opening piece 20 It may be a triangle or a teardrop shape that is tilted to a state where the peeling start side is wide, or a triangle or a teardrop shape that is tilted to a state where the peeling start side of the opening piece 20 is narrow.

  The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to such examples. It is obvious for those skilled in the art that various modifications or modifications can be conceived within the scope of the idea described in the claims, and these naturally belong to the technical scope of the present invention. It is understood.

  EXAMPLES Hereinafter, although an Example and a comparative example are given and this invention is demonstrated in detail, this invention is not limited to these.

First, evaluation methods used in Examples and Comparative Examples will be described.
[Evaluation method]
The open pieces of the samples of each example and comparative example were cut off (peeled). As the conditions, the angle formed by the cutting point from the opening position of the opening piece and the angle between the front plate was 90 ° and 180 °, and the cutting speed was 50 times each at a slow speed of about 20 cm / second. The sample after opening was observed and evaluated as follows, and the results are shown in the table of FIG.
(1) Ratio of each bonded area A: Clearly peeled B: Partially left C: Little left / not peeled (2) Overall evaluation ◎: Very good ○: Good (20% or less trouble occurred)
Δ: Defect (defect of 20% to 50%)
×: Very bad (50% or more of the defects occurred)

[Example 1]
The base paper is a coated cardboard (Suncoat (registered trademark) manufactured by Oji Paperboard Co., Ltd.) with a basis weight of 550 g / m ² , and the basic design is Saran Wrap (registered trademark) brand 30 cm x Asahi Kasei Home Products Co., Ltd. 50 m. One horizontal embossment having a width of 2 mm was provided in the lateral direction from the position of 5 mm on both ends of the opening piece, and the depth of the embossing was set to 0.10 mm on the back surface. Fold each side in the longitudinal direction and paste the unsealed piece on the front plate with glue (Henkel Japan Co., Ltd. Instant Lock (registered trademark)), and then paste the side part with glue to form a rectangular wrap A film storage box was assembled.

[Example 2]
In the same design as in Example 1, the difference was that horizontal embossments having a width of 2 mm and a length of 21 mm (stretched by 3 mm to the left and right) in the lateral direction were arranged at four positions corresponding to the adhesive portions of the opening pieces. The depth of the embossing was set to 0.10 mm at the back surface protrusion.

[Example 3]
The base paper is a coated cardboard (Suncoat (registered trademark) manufactured by Oji Paperboard Co., Ltd.) with a basis weight of 550 g / m ² , and the basic design is Saran Wrap (registered trademark) brand 30 cm x Asahi Kasei Home Products Co., Ltd. 50 m. The embossing was in the vertical direction, and vertical embossments with a width of 2 mm and a length of 8 mm were arranged at a position of 8 mm on the left and right with reference to the end on the peeling start side of the portion that coincided with the adhesive part of the opening piece. The depth of the embossing was set to 0.10 mm at the back surface protrusion. Fold each side in the longitudinal direction and paste the unsealed piece on the front plate with glue (Henkel Japan Co., Ltd. Instant Lock (registered trademark)), and then paste the side part with glue to form a rectangular wrap A film storage box was assembled.

[Example 4]
The difference in the design as in Example 1 is that the embossing depth is 0.04 mm at the back surface protrusion.

[Comparative Example 1]
The base paper is a 30cm x 50m brand of Saran Wrap (registered trademark) manufactured by Asahi Kasei Home Products Co., Ltd., using a basis weight of 550 g / m ² of coated cardboard (Suncoat (registered trademark) manufactured by Oji Paperboard Co., Ltd.). used. That is, the open piece was not embossed. Fold each side in the longitudinal direction and paste the unsealed piece on the front plate with glue (Henkel Japan Co., Ltd. Instant Lock (registered trademark)), and then paste the side part with glue to form a rectangular wrap A film storage box was assembled.

[Comparative Example 2]
The base paper is a 30cm x 50m brand of Saran Wrap (registered trademark) manufactured by Asahi Kasei Home Products Co., Ltd., using a basis weight of 550 g / m ² of coated cardboard (Suncoat (registered trademark) manufactured by Oji Paperboard Co., Ltd.). used. In addition, the embossing was in the vertical direction, and three vertical embossments having a width of 2 mm and a length of 8 mm were arranged 5 mm apart from the end on the knob side of the unsealed piece. The embossing depth was set to 0.10 mm protruding from the back surface. Fold each side in the longitudinal direction and paste the unsealed piece on the front plate with glue (Henkel Japan Co., Ltd. Instant Lock (registered trademark)), and then paste the side part with glue to form a rectangular wrap A film storage box was assembled.

  In Examples 1 and 2, by arranging the embossing on the opened piece in the horizontal direction, the opened piece is difficult to bend, an extreme decrease in strength due to folding of the opened piece is not seen, and the opened piece is not broken It was. In addition, the appearance of each bonded portion was also good. In Example 3, since the embossing on the opening piece was arranged in the vertical direction, the opening piece was not torn even if the opening piece was bent, and the angle at the time of cutting was controlled. It was difficult to receive, and tearing of the opened pieces did not occur. In Example 4, although the same effect as Example 1 was seen, since the embossing depth was shallow, the effect tended to be low as a whole. On the other hand, in Comparative Example 1, when the opening angle was 180 °, it was greatly affected by the opening conditions, and the opening pieces were broken. Further, in Comparative Example 2, since the embossing is arranged on the knob portion of the opening piece, the visibility of the knob position is improved, but the local embossing is effective for improving the opening property as a whole. There wasn't.

  As described in detail above, the wrap film storage box of the present invention can be suitably used as a wrap film storage box that is excellent in sealing performance in the distribution stage and that exhibits good openability when used by consumers.

DESCRIPTION OF SYMBOLS 1 Wrap film storage box 10 Cover piece 11 Cover plate 12 Side wall cover piece 13 Cover part 14 Front plate 15 Bottom plate 16 Rear plate 17 Side plate 18 Folding plate 19 Film accommodating part 20 Opening piece 21 Cut line 22 Saw blade 30 Adhesive part 31 Half Cut line 40 Semicircle cut 50, 60 Emboss X Cut direction

Claims (9)

A wrap film storage box capable of opening the box body by cutting off the opening piece along the longitudinal direction of the box body,
The box body is provided with a plurality of bonding portions along the longitudinal direction for bonding the opening pieces,
The opening piece is provided with a vertical embossing perpendicular to the cutting direction,
The said emboss is a wrap film storage box provided in the position corresponding to the back side vicinity of the said adhesion part which is the foremost with respect to the said cutting direction.   The wrap film storage box according to claim 1, wherein the emboss is provided at a position corresponding to the vicinity of the rear side of each bonding portion. A wrap film storage box capable of opening the box body by cutting off the opening piece along the longitudinal direction of the box body,
The box body is provided with a plurality of bonding portions along the longitudinal direction for bonding the opening pieces,
The opening piece is provided with a horizontal embossing along the cutting direction,
The said embossing is a wrap film storage box provided in the position which straddles the back end of the said cutting direction of the said adhesion part at least.   4. The wrap film storage box according to claim 3, wherein the emboss is provided at a position extending from at least a rear side vicinity to a front side vicinity of the cutting direction of the adhesive portion. 5.   5. The wrap film storage box according to claim 4, wherein the emboss is provided at a position extending from the rear side to the front side from the frontmost adhesive part to the front side from the rearmost adhesive part with respect to the cutting direction.   The wrap film storage box according to claim 1, wherein the emboss includes a plurality of linear dents.   The said embossing is a wrap film storage box in any one of Claims 1-6 formed so that the front side of the said opening piece may be dented and the back side may protrude.   The wrap film storage box according to any one of claims 1 to 7, wherein a varnish is applied to a portion other than the adhesive portion of the box body corresponding to the opening piece.   The wrap film storage box of Claim 1 or 2 whose distance of the said embossing and the back end of the said adhesion part is less than 2 cm.

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