JP2006001550A - Packaging body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging body capable of consistently and easily forming an opening (a take-out port) of a sufficient size to take out a product stored in the packaging body. <P>SOLUTION: The substantially rectangular packaging body comprises a bottom material and a lid material having at least a base material layer and a heat-bonding resin layer, and the bottom material and the lid material are peelably sealed at a rim heat-bonded part. A first non-bonded part is provided on an outer edge of one corner part of the rim heat-bonded part, a first through cutout extending in the diverging direction from the corner part is formed on the outer edge of one rim heat-bonded part extending from the corner part, and a cut parallel to the other rim heat-bonded part extending from the corner part is formed in the vicinity of a tip of the first through cutout in the extending direction of the first through cutout on the base layer of the lid material from the outer edge of one rim heat-bonded part to the outer edge of the rim heat-bonded part at the facing position. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an easy-open packaging body, and more particularly, it is easy to easily take out a rigid storage item and easily form an opening of an appropriate size without dropping the storage item at the time of opening. The present invention relates to an openable package.

  Conventionally, products with rigidity such as household goods, miscellaneous goods, medical instruments, industrial products, etc. have been molded with (A) pillow type, three-side seal, four-side seal type, etc., or (B) lid materials. The package is composed of a bottom material, so-called a blister pack, and is sold. In these packages, for example, in the package (A), notches, scars, etc. can be opened so that the products can be taken out without using scissors or a cutter. A starting means is provided on the outer edge of the package, and an opening (removal port) is formed by tearing from the opening starting means, and a product stored in the package is taken out from the opening. However, it is difficult to open a package provided with means for starting opening such as notches and scars, and it is difficult to open the product. There is a problem that an opening large enough to be taken out cannot be obtained. In addition, for example, in the package of (A), in addition to the opening start means, for example, a cut line such as a perforation connected to the opening start means is provided. The product stored in the package can be easily taken out, but the product stored in the package has rigidity, for example, a vertically long solid, specifically In the case of ballpoint pens, pencils, toothbrushes, etc., the product cannot be torn open straight because it obstructs the opening line, and an opening (outlet) large enough to take out the product is obtained. The problem of being unable to do so arises.

Moreover, in the package of (B), it is comprised so that the product accommodated in the package can be taken out by comprising the heat bonding part of a cover material and a bottom material by easy-opening property (for example, patent documents) 1). The technique disclosed in Patent Document 1 obtains easy peelability by thermally bonding a lid material and a bottom material through a hot melt adhesive layer, but takes out a product stored in a package. For this reason, when the cover material is peeled off from the bottom material, if the product is peeled off vigorously, the product stored in the package may be dropped on the floor or the like, and an opening (extraction port) large enough to take out the product is obtained. For this reason, there is a rather annoying problem that it must be carefully peeled off.
JP 58-192551 A

  Therefore, the present invention can easily form an opening (extraction port) large enough to take out a rigid product (contained item) stored in the package, and everyone has a constant size. It is to provide a package that can stably obtain the opening (outlet opening) and that does not drop the product (contained items) when opened.

  In order to achieve the above object, the inventor of the present invention includes a bottom material, and a cover material including at least a base material layer and a heat-adhesive resin layer, and the bottom material In the substantially rectangular package in which the lid member is detachably sealed with a peripheral thermal bonding portion, the outer peripheral edge of one corner of the peripheral thermal bonding portion has a first unbonded portion, and extends from the corner. A first through cutout extending in a direction away from the corner is provided at an outer edge of one of the peripheral thermal bonding portions, and extends from the corner in the vicinity of the tip of the first through cutout in the extending direction of the first through cutout. Cuts parallel to the other peripheral thermal adhesive portion are formed in the base material layer of the lid material from the outer edge of the one peripheral thermal adhesive portion to the outer edge of the peripheral thermal adhesive portion at a position opposite to the outer peripheral thermal adhesive portion. It is a feature.

  Further, the present invention according to claim 2 is the package according to claim 1, wherein a second unbonded portion is provided on an outer edge of the opposite corner portion at a position facing the corner portion of the other peripheral thermal bonding portion. And a second through-cutout extending in a direction deviating from the opposing corner and extending to the vicinity of the cut is provided at an outer edge of the peripheral thermal bonding portion at a position facing the one peripheral thermal bonding portion. It is a feature.

  Moreover, the present invention described in claim 3 is the package according to any one of claims 1 and 2, wherein the other peripheral thermal adhesive portion is formed on the short side of the package. To do.

  Moreover, this invention of Claim 4 is a package in any one of Claims 1-3, The said bottom material is a molded object which has a flange part in a periphery, It is characterized by the above-mentioned.

  The packaging body of the present invention adopts the above-described configuration, so that the first unbonded portion or the second unbonded portion of the corner portion is used as an opening start portion, and the lid material and the bottom material are gripped with fingers and separated from each other. The lid material and the bottom material are peeled off to reach a through notch, and the lid body is torn along the through notch at the point where the through notch is reached. Further, it is possible to obtain a certain size of opening (removal port) by being further torn along, and it is possible to easily take out the rigid product stored in the package. Further, since the size of the opening (extraction opening) is determined by the distance from the other peripheral thermal bonding portion where the through notch and the cut are provided, the size is appropriately determined according to the shape and size of the product stored in the package. As a result, everyone can stably obtain an opening (extraction port) of a constant size, and at the same time has an excellent effect that there is no possibility of dropping the rigid product stored in the package. is there. Further, by adopting the above configuration, there is an effect that it can be opened without being disturbed by a product having rigidity.

The present invention will be described in detail below with reference to the drawings.
FIG. 1 is a plan view schematically showing an embodiment of a package according to the present invention, FIG. 2 is an enlarged view schematically showing a cross section taken along line XX of FIG. 1, and FIG. 3 is a line YY of FIG. FIG. 1 is an enlarged view schematically showing a cross section, in which 1 is a packaging body, 2 is a lid member, 3 is a bottom material, 4, 4 ′ and 4 ″ are peripheral thermal bonding portions, and 5 and 5 ′ are through cutouts, 6 is a cut, 20 is a base material layer, 21 is a heat-adhesive resin layer, 30 is a flange portion, and M1 and M2 are unbonded portions.

  FIG. 1 is a plan view schematically showing an embodiment of a package according to the present invention, FIG. 2 is an enlarged view schematically showing a cross section taken along line XX of FIG. 1, and FIG. 3 is a line YY of FIG. FIG. 2 is an enlarged view schematically showing a cross section, wherein the packaging body 1 includes a bottom material 3 formed into a container shape having a flange portion 30, a base material layer 20, and a thermoadhesive resin layer 21. 2, a substantially rectangular package body in which the flange portion 30 and the lid member 2 of the bottom material 3 are sealed so as to be peeled off by a peripheral heat bonding portion 4, and provided on one short side. The first unbonded portion M1 is provided on the outer edge of one corner of the peripheral thermal bonding portion 4 ′ (4) and the one of the peripheral thermal bonding portion 4 ′ (4) provided on the one short side. A second unbonded portion M2 is provided on the outer edge of the facing corner portion at a position facing the corner portion of the edge portion, and the peripheral heat contact is provided on the one short side. From the outer edge of the peripheral thermal bonding part 4 ′ (4) provided on the one short side of the peripheral thermal bonding part 4 ″ (4) provided on both long sides orthogonal to the part 4 ′ (4), etc. A first through cutout 5 and a second through cutout 5 ′ penetrating the lid member 2 and the bottom member 3 extending in a direction deviating from the corner portion or the opposite corner portion are provided at each outer edge at a distance, The peripheral thermal bonding provided on the one short side near the tip of the first through notch 5 and the second through notch 5 ′ in the extending direction of each of the first through notch 5 and the second through notch 5 ′. A notch 6 parallel to the portion 4 ′ (4) is formed from one outer edge to the other outer edge of the peripheral thermal bonding portion 4 ″ (4) provided on both long sides of the base material layer 20 of the lid. It is what.

  The package 1 configured as described above is configured so that the uncovered portion M1 (or unbonded portion M2) has the lid member 2 and the bottom member 3 gripped with fingers and pulled in a direction away from each other. The lid 2 is peeled off from the bottom material 3, the peeling interface reaches the first through notch 5 (or second through notch 5 ′), and the lid 2 is torn along the first through notch 5 (or second through notch 5 ′). When the tear line reaches the cut line 6, the tear line is further torn along the cut line 6. Finally, the lid member 2 on the unbonded part M 1 (or the unbonded part M 2) side of the cut line 6 is removed. It is completely peeled off from the bottom material 3 and an opening (extraction port) of a certain size can be stably obtained, and a product (not shown) stored in the package 1 can be easily taken out. . Further, the size of the opening (extraction opening) is such that the peripheral heat-bonding portion 4 ′ (4) on the one short side provided with the first through cutout 5 (or the second through cutout 5 ′) and the cut 6. Since it is determined by the distance from the package, it can be determined appropriately depending on the shape and size of the product stored in the package. (Mouth) can be obtained, and the product stored in the packaging body 1 is covered with the cover material 2 remaining without being peeled off, so that there is no possibility of dropping. In the embodiment, two unbonded portions and two through cutouts related to the unsealed portion are provided as the opening start portion, but are provided for improving convenience. , One provided on either side.

  Although not shown in the drawings, the packaging body 1 of the present invention is formed by unwinding the bottom material 3 wound up in a roll shape from a paper feeding unit, filling the molded portion with a product, and winding it in a roll shape on the other side. The lid member 2 is fed out from the sheet feeding unit, and the lid member 2 is thermally bonded so as to form the non-bonded portions M1 and / or M2 by the flange portion 30 of the bottom member 3 and then a predetermined position. Can be obtained by providing through-cutouts 5 and / or through-cutouts 5 'and then punching. The packaging body 1 of the present invention is manufactured by a so-called drawing-molding automatic packaging machine. In FIG. 1, a plurality of rows are impositioned in the left-right direction and automatically conveyed in the up-down direction in FIG. In FIG. 1, a plurality of rows may be imposed in the vertical direction and the paper may be automatically conveyed in the horizontal direction in FIG. 1.

Next, the material etc. which comprise the package 1 of this invention are demonstrated.
It is essential that the package 1 is heat-bonded so that the peripheral heat-bonding portions 4, 4 ′, 4 ″ to which the lid material 2 and the flange portion 30 of the bottom material 3 are heat-bonded are peelable. It is needless to say that it is necessary to select and use the material to be appropriately used, and the bottom material 3 is described as being formed into a container shape in the embodiment, but it is not formed. It may be flat.

  First, the lid member 2 will be described. The lid member 2 is composed of at least a base material layer 20 and a heat-adhesive resin layer 21, and the base material layer 20 is, for example, biaxial such as polypropylene, polyester, polyamide, etc. One or two or more of stretched films may be laminated, and the back surface thereof may be, for example, polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, ionomer, Mention may be made of polyolefins such as ethylene-acrylic acid or methacrylic acid copolymers, ethylene-methyl acrylate, ethyl acrylate or methyl methacrylate copolymers. Further, the biaxially stretched film may be a film provided with a polyvinylidene chloride film or a metal or metal oxide vapor deposition film as required, or a laminated metal foil such as an aluminum foil. It may be.

  Next, the bottom material 3 will be described. As the bottom material 3, it is necessary to use a moldable material when it is molded into a container shape. For example, polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, ionomer, ethylene -Polyolefins such as acrylic acid or methacrylic acid copolymer, ethylene-methyl acrylate or ethyl acrylate or methyl methacrylate copolymer, polyvinyl chloride, polyvinyl acetate, polyamide, polyester, ethylene-vinyl acetate copolymer ken Or a film of polystyrene, styrene-butadiene copolymer, acrylonitrile-butadiene-styrene copolymer or a laminate of two or more layers made of the above-described resins can be used. Further, if necessary, a film obtained by providing a film of polyvinylidene chloride or a vapor deposition film of metal or metal oxide on the above-described film may be used.

  Further, when the bottom material 3 is not molded into a container shape, the above-described moldable material may be used without being molded, or the same material described in the lid material 2 may be used. It is. Specifically, a laminate in which one or two or more biaxially stretched films such as polypropylene, polyester, and polyamide are laminated as a base material layer, and the above-described polyolefin is laminated on the back surface thereof as a heat-adhesive resin layer. It may be used. Furthermore, the above-mentioned biaxially stretched film can be a film provided with a polyvinylidene chloride film or a metal or metal oxide vapor-deposited film, if necessary, or a laminated metal foil such as an aluminum foil. It may be.

  However, in the package 1 of the present invention, it is necessary that the peripheral thermal bonding portions 4, 4 ′, 4 ″ for thermally bonding the lid material 2 and the bottom material 3 are heat-bonded so as to be peelable. It is necessary to select and use a resin type that constitutes an adhesive surface between the lid material 2 and the bottom material 3. For example, the resin located on the surface of the bottom material 3 that is thermally bonded to the lid material 2 is low-density polyethylene. Then, the thermal adhesive resin layer 21 constituting the lid member 2 may be, for example, medium / high density polyethylene, ethylene-propylene copolymer or ethylene-vinyl acetate copolymer, For example, CMPS-006 [Tosero Co., Ltd .: trade name] or TEP-71 [Dainippon Resin Co., Ltd. trade name] may be used as an easily peelable film. For example, the lid 2 of the bottom material 3 If the resin located on the surface to be thermally bonded is polypropylene, the thermally adhesive resin layer 21 constituting the lid member 2 is marketed, for example, as an ethylene-propylene copolymer or an easily peelable film. For example, CMPS022C [manufactured by Tosero Co., Ltd .: trade name] or Trefan CF9501A [manufactured by Toray Gosei Co., Ltd .: trade name] may be used. The material 3 and the lid material 2 may be configured in reverse, and depending on the type of resin located on the surface of the bottom material 3 that is thermally bonded to the lid material 2, for example, the lid material 2 As the thermal adhesive resin layer 21 or on the back surface of the thermal adhesive resin layer 21, for example, modified polyester, modified polyolefin such as chlorinated polyethylene or chlorinated polypropylene, Len - acrylic acid or methacrylic acid copolymers, in which polyurethane may be formed a heat seal layer by applying a heat seal composed of acid-modified polyurethane or the like.

  Next, the cut 6 formed in the base material layer 20 of the lid 2 will be described. The cut 6 may be a half cut or a through cut, and may be properly used depending on the layer structure of the lid member 2. In the case of a half-cut, if a cut is formed to a depth of about ½ of the thickness of the base material layer 20 in the longitudinal direction or the width direction of the base material layer 20 using a known rotary die cutter. Moreover, in the case of a cut through, the cut may be formed with a razor blade or the like in the longitudinal direction of the base material layer 20. In the case of a half cut, in order to provide a stable cut, the thickness of the base material layer 20 is preferably 15 μm or more.

Next, the present invention will be described in further detail with reference to specific examples.
First, as the bottom material 3, a laminate having a total thickness of 200 μm composed of three layers of a polyethylene layer (60 μm) / ionomer layer (80 μm) / polyethylene layer (60 μm) is used, and the bottom material is preliminarily used in a vacuum / pressure molding machine. A molded container having a flange portion having a width of 5 mm on the periphery formed by drawing to a horizontal direction of 35 mm, a vertical direction of 145 mm, and a depth of 20 mm was produced.

[Preparation of lid material 2]
Photoelectric tube marks were printed on one surface of a 16 μm-thick biaxially stretched polyethylene terephthalate film (hereinafter referred to as PET film) at a pitch of 155 mm by a gravure printing method. Thereafter, a straight half cut was formed in the width direction at a pitch of 155 mm at a position 55 mm from the photoelectric tube mark on the other surface of the PET film using a rotary die cutter. Next, a urethane anchor coating agent is applied to the printed surface of the PET film and dried, and an easily peelable film [Dainippon Resin Co., Ltd .: TEP-71 (trade name)] having a thickness of 30 μm is applied to the coated surface to 20 μm Polyethylene was heated and melt-extruded so as to have a thickness and laminated by a sandwich lamination method to produce a lid material of the present invention.

[Preparation of lid material 2]
Photoelectric tube marks were printed on one surface of a 12 μm thick PET film at a 45 mm pitch by a gravure printing method. Thereafter, a urethane adhesive is applied to the printed surface of the PET film and dried, and a PET film having a thickness of 12 μm is cut on the coated surface in a longitudinal direction with a razor blade (while a through cut is provided). ) An intermediate was prepared by laminating by a known dry lamination method. Next, a urethane adhesive was applied and dried on the PET film surface provided with the through-cuts of the intermediate, and an easily peelable film [Dainippon Resin Co., Ltd .: TEP-71 (product) Name)] was laminated by a known dry lamination method to produce a lid material of the present invention.

[Production of Package 1]
After cutting the lid material of Examples 1 and 2 produced above by 1 pitch (55 × 155 mm) and storing the medical syringe (syringe filled with a drug solution) in the molded container produced above, Each of the easy-adhesive films is aligned so that it is on the container side, and is sealed with the peripheral heat-bonding portion 4 so as to have the non-bonded portions M1 and M2 on FIG. 1, and at the position shown in FIG. The 1st penetration notch 5 of shape and 2nd penetration notch 5 'were provided with the cutter, and the packaging body of this invention shown in FIG. 1 was obtained.

  The above-described package using the lid material of Examples 1 and 2 is pulled in a direction in which the lid material and the bottom material are separated from each other in the unbonded portion M1 in FIG. When the material is peeled from the bottom material, the peeling interface reaches the first through notch 5, the lid body is torn along the first through notch 5, and the tear line reaches a half-cut or a through-cut The lid material on the non-bonded portion M1 side is finally peeled off from the bottom material from the cut to obtain a certain size opening (extraction opening). The medical syringe stored in the package could be easily taken out. In the embodiment or the drawings, the through cutouts 5 and 5 'are I-shaped, but polygonal cutouts such as a U-shape and a V-shape may be used. There is a risk that polygonal scraps such as a shape adhere to the package and mix, and the I-shape is preferable as the through cutouts 5 and 5 '.

  Note that the packaging body of the present invention can be applied without particular limitation as long as it is a product having rigidity. Can be suitably used.

1 is a plan view schematically showing an embodiment of a package according to the present invention. It is an enlarged view which shows the XX sectional view of FIG. FIG. 2 is an enlarged view schematically showing a cross section along line YY in FIG. 1.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Package 2 Cover material 3 Bottom material 4,4 ', 4 "Peripheral heat bonding part 5,5' Through notch 6 Cut 20 Base material layer 21 Thermal adhesive resin layer 30 Flange part M1, M2 Unbonded part

Claims (4)

In a substantially rectangular package comprising a bottom material, a lid material provided with at least a base material layer and a heat-adhesive resin layer, wherein the bottom material and the lid material are hermetically sealed at a peripheral heat-bonding portion. The first through-hole has a first unbonded portion at the outer edge of one corner of the peripheral thermal bonding portion, and extends in a direction away from the corner at the outer edge of one peripheral thermal bonding portion extending from the corner. A notch is provided in the vicinity of the tip of the first through cutout in the direction in which the first through cutout extends, and a cut parallel to the other peripheral thermal adhesive portion extending from the corner portion is formed on the base material layer of the lid member. A packaging body characterized in that it is formed from the outer edge of the peripheral heat-bonding portion to the outer edge of the peripheral heat-bonding portion in a position facing the outer peripheral heat-bonding portion. The peripheral thermal bonding portion having a second unbonded portion at the outer edge of the opposing corner portion at a position facing the corner portion of the other peripheral thermal bonding portion and facing the one peripheral thermal bonding portion. 2. The package according to claim 1, wherein a second through cutout extending in a direction deviating from the opposing corner portion and reaching the vicinity of the cut is provided at an outer edge of the package. The package according to any one of claims 1 and 2, wherein the other peripheral thermal bonding portion is formed on a short side of the package. The package according to any one of claims 1 to 3, wherein the bottom material is a molded body having a flange portion at a peripheral edge.