JP2017095151A - Bend-and-open package, and opening structure of bend-and-open package - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bend-and-open package and an opening structure of the bend-and-open package, in which sealing with a sealing material is prevented from being released before a bending portion is bent to a prescribed bending angle or less.SOLUTION: A package body 11 in a bend-and-open package 10A comprises: a flexible body part 12 formed into a bag shape; and a lid part 13 for closing an aperture on a top face side of the body part 12. The lid part 13 comprises: a sheet member 20 disposed on a side corresponding to the interior of the package body 11; a sealing material 40 which is affixed to a top face within an opening region 16 of a bending portion 15 on a side corresponding to the exterior of the package body 11 in the sheet member 20, so as to cover a notch 21 formed in the opening region 16; and protective film 50 which is affixed so as to cover a top face of the sealing material 40.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a folded open package for individually packaging contents such as liquid, paste, powder, granule, and tablet in foods, pharmaceuticals, cosmetics, etc., and more specifically, enclosed in the package body The present invention relates to a folded unsealed package that can smoothly take out the contents, and an unfolded structure of the folded unfolded package.

To date, many packages have been proposed for packaging the above-mentioned contents in a necessary amount, and the contents can be taken out as necessary. A liquid container is one such package.
The liquid container of Patent Document 1 is attached so that an easily breakable sheet provided with a straight easily breakable portion is covered with respect to the opening side peripheral portion of the liquid container body, and the easily breakable seal is attached to the easily breakable sheet. The easily breakable portion is attached so as to cover the belt-like easily breakable portion provided on the easily breakable sheet.

  When discharging the liquid from the inside of the liquid container described above, the easily breakable sheet stretched by deforming the liquid container body, the straight easy breakable portion provided on the easily breakable sheet, and the easy breakable seal The easily breakable part provided in is broken. Thereby, the liquid is discharged from the inside of the liquid container.

  However, when a large number of liquid containers are transported or transported, other liquid containers come into contact with, rub against, or abut against the wrinkle-breaking sticker attached to the wrinkle-breaking sheet in the liquid container. I can't prevent that. Furthermore, since the easily breakable part of the tear-breaking seal adhered to the tear-breaking sheet is exposed to the outside, the liquid container is bent to break the easily breakable part formed on the easily breakable sheet and the easily breakable seal. Before, the perforated fragile portion of the easily breakable portion formed in the easily breakable seal is easily broken, and it is difficult to keep the state sealed by the tear breakable seal.

Japanese Patent Application No. 2013-1503

  The present invention provides a folded unsealed packaging body that can prevent the sealing by the sealing material from being released before folding the folded portion to a predetermined folding angle or less, and unfolding the folded unsealed packaging body. The purpose is to provide a structure.

  According to the present invention, at least a part of the package body in which the contents are enclosed is composed of a flat member having a folded portion that can be folded in a double-folded state, and the opening is set in the folded portion. A notch that can penetrate in the thickness direction of each member is formed by bending the bent portion, and a sealing material that seals the notch is formed on the outer surface of the flat member corresponding to the outside of the package body. Folding-open packaging that is attached so as to cover the cut, and is formed on at least an upper surface of the sealing material in the flat member so that a sealing material protection portion that protects the sealing material covers the sealing material It is a body.

  Further, the present invention is an opening structure of a folded-open package body in which a part of a package body in which contents are enclosed is folded and opened in a folded state. At least a part is composed of a flat member having a foldable portion that can be folded in a double-folded state, and in the opening region set in the foldable portion, the foldable portion is bent in the thickness direction of each member. A notch that can be penetrated is formed, and a sealing material for sealing the notch is attached to an outer surface of the flat member corresponding to the outside of the package body so as to cover the notch, and at least the flat member It is characterized by being the opening structure of the folding opening packaging body in which the sealing material protection part which protects the said sealing material was formed on the upper surface of the sealing material so that this sealing material might be covered.

According to this invention, it is possible to prevent the sealing by the sealing material from being released before the bent portion is bent to a predetermined bending angle or less.
Specifically, the folded portion of the folded and opened package is folded to a predetermined folding angle or less, and the sealing of the sealing material covering the cut formed in the folded portion is released (for example, broken or peeled off). In order to peel off the sealing material protection part formed so as to cover the sealing material, the contents sealed in the package body can be taken out from the cut and released from the sealing.

  Since the sealing material that seals the notch is covered with the sealing material protection part in the state where the notch is sealed with the sealing material, for example, during transportation or transportation, the sealing material protection in the folded open packaging body It is possible to prevent the other folded opened package from coming into contact with, rubbing against, or coming into contact with the sealing material covered with the portion.

Accordingly, the sealing material can be surely prevented from peeling or dripping, and the sealing material is bent until the sealing is released by bending the bent portion and releasing the sealing by the sealing material. The sealed state can be maintained.
As a result, it is possible to prevent the contents enclosed in the package body from leaking before the bent portion is bent and the sealing by the sealing material is released.

  In addition, even if one of the sealing material and the sealing material protection part is broken or peeled off, the sealed state can be maintained in the other, so that the sealing material and the sealing material protection part It is possible to keep the sealed state until the sealing by both is released.

  The folded and opened package can be constituted by, for example, a package having a small capacity or a bag-shaped package having a large capacity. The contents can be composed of contents such as liquid, paste, powder, granule, tablet and the like. The flat member can be constituted by, for example, a sheet member or a film member. The cuts can be formed in, for example, a linear shape, an arc shape, a wave shape, a double mountain shape, an M shape, a V shape, or the like when viewed from the thickness direction.

  The term “at least a part” is a concept including, for example, a bent portion of the package body or the entire portion where the bent portion of the package body is formed. The direction corresponding to the bending direction is a concept including, for example, the longitudinal direction of the package body formed in a substantially rectangular shape in plan view or the longitudinal direction of the flat member. The notch is a concept including, for example, a notch penetrating in the thickness direction when folded in a double-folded state, or a notch penetrating and penetrating in the thickness direction.

  The flat member is, for example, amorphous polyethylene terephthalate (A-PET), polypropylene (PP), biaxially stretched polyester (OPET), biodegradable plastic (PLA), polycarbonate (PC), polyethylene (PE), polystyrene (PS), Alternatively, it can be composed of a single material such as cardboard or a metal sheet, or a sheet member formed of a composite material.

Further, for example, a film member formed of a single material such as biaxially stretched polyester (OPET), biaxially stretched polypropylene (OPP), polyethylene (PE), cellulose propionate (CP), or metal (aluminum), or a composite material. Can be configured.
The material and thickness of the flat member can be changed according to, for example, the type of contents or the internal shape of the package body.

  A sealing material can be comprised with thin foil bodies, such as aluminum foil, stainless steel foil, copper foil, iron foil, a resin film, etc., for example. As an example of the foil body, when an aluminum foil having a thickness of 5 μ to 35 μm is used as a sealing material, a folded and opened package having good moisture permeability, gas permeability, and folded opening can be obtained. Here, the gas permeability refers to a gas barrier property that suppresses permeation of oxygen, moisture, corrosive gas, and the like.

  In addition, other materials with good moisture permeability and gas permeability that replace aluminum foil include, for example, films made of polyvinylidene chloride, composite materials combined with other synthetic resins, films with good gas permeability deposited on aluminum, etc. You may comprise with the material according to the characteristic and physical property of a thing, and the thing of a material with weak tearing strength is desirable.

  The sealing material protection part can be constituted by, for example, a protective film or a protective layer. The wall thickness of the encapsulant protection part can be formed approximately the same as the wall thickness of the encapsulant, but if it can be broken and peeled off by bending, it should be made thinner than the wall thickness of the encapsulant It may be thickened.

As an aspect of the present invention, the sealing material protection part is formed so as to cover the upper surface of the sealing material.
According to the present invention, it is possible to reliably prevent the sealing by the sealing material from being released before the bent portion is folded in a folded state.

  Specifically, since the upper surface of the sealing material that seals the notch is covered with the sealing material protection part, other folding opening is applied to the sealing material covered with the sealing material protection part in the folded opening package. It is possible to reliably prevent the package from contacting, rubbing, or abutting.

As a result, for example, during transportation or transportation, the sealing material can be reliably prevented from peeling or dripping, and the bent portion is folded to release the sealing with the sealing material. In addition, it is possible to prevent the contents enclosed in the package body from leaking.
As a result, the state sealed by the sealing material can be reliably maintained until immediately before the bent portion is bent and the sealing by the sealing material is released.

Moreover, as an aspect of this invention, the said sealing material protection part can be formed so that the upper surface of the said flat member containing the said sealing material may be covered.
According to the present invention, it is possible to more reliably prevent the sealing by the sealing material from being released before the bent portion is folded in a folded state.

  Specifically, since the upper surface of the flat member including the sealing material is covered with the sealing material protection portion, the other folding opening packaging is applied to the sealing material covered with the sealing material protection portion in the folded opening packaging body. It is possible to more reliably prevent the body from contacting, rubbing, or abutting.

Thereby, for example, during transportation or during transportation, the sealing material can be more reliably prevented from peeling or dripping, and the bent portion is folded to release the sealing by the sealing material. It is possible to more reliably prevent the contents enclosed in the package body from leaking.
As a result, the state sealed by the sealing material can be more reliably maintained until immediately before the bent portion is bent and the sealing by the sealing material is released.

Moreover, as an aspect of the present invention, the sealing material protection portion is formed of a protective film or a protective layer formed with a thickness substantially equal to that of the sealing material.
The protective film is, for example, a release agent layer made of a silicone-based release agent having a releasable adhesive force, and a base film made of a synthetic resin in which the release agent layer is formed on the sticking surface side. Can be configured. The protective layer can be constituted by, for example, applying, coating, vapor deposition, or spraying a transparent synthetic resin or silicone release agent, or attaching a foil-like release agent.

According to this invention, it is possible to more reliably seal the cut of the bent portion.
Specifically, the protective film or the protective layer may be formed in a state of being in close contact so as to cover the upper surface of the sealing material, for example, by forming the protective film to a thickness substantially equal to that of the sealing material made of aluminum foil. it can.

  Moreover, since the protective film covering the sealing material or the protective layer can be peeled off together with the sealing material when the bent portion is bent and the sealing with the sealing material is released, the package body The contents enclosed in the inside can be immediately taken out from the cut which has been released from the seal and used.

  Furthermore, the protective film can be easily attached to the upper surface of the sealing material or the upper surface of the flat member including the sealing material. Further, since the sealing layer can be formed in a thin film shape with respect to the top surface of the sealing material, the top surface of the sealing material or the sealing material can be used even if the top surface of the sealing material is not smooth. It can form in the state closely_contact | adhered with respect to the upper surface of the flat member containing.

  Further, as an aspect of the present invention, the notches formed in the respective members are arranged at a predetermined interval with respect to a direction corresponding to a bending direction of the bent portion, and at least in the opening region of the respective members. Are opposed to each other by an adhesive layer interposed between the opposing surfaces.

  The adhesive layer can be composed of, for example, a hot melt adhesive, a urethane adhesive, or other adhesives. In addition, when adjusting the strength of the peel adhesion in the adhesive layer, for example, a method of adjusting by pressing force or heating temperature, pressing time or heating time at the time of thermocompression bonding, and a pressing jig or heating jig are added. The strength can be adjusted to a desired strength by a method such as a method of adjusting by the pressure surface shape, a method of adjusting by blending of the adhesive, and a method of adjusting by the application pattern of the adhesive.

According to this invention, the content enclosed in the package body can be smoothly taken out from the part where the members are peeled and opened.
Specifically, the folded portion of the folded open package body is folded in a folded state in the folded portion of the package body, and the part pasted to be peelable in the unsealed region corresponding to the notch between the members is attached. The film is peeled and opened against the adhesive force of the adhesive layer, and the cut is penetrated in the thickness direction T.

  Since the sealing material and the sealing material protection part are pulled in the folding direction by the pulling force applied to the bent part, they can be broken and peeled to release the seal, and the package body The contents enclosed inside can be taken out from the cut.

  As a result, the folded portion is folded in a folded state, and the state sealed with the sealing material until immediately before peeling and unsealing the part that can be peeled off in the opening region corresponding to between the cuts between the members Can keep.

  Moreover, as an aspect of this invention, the folding ruled line which assists the bending of this flat member can be attached between the both ends of the width direction in the said flat member, and the both ends of the width direction in the said notch.

According to the present invention, the folded and opened package can be easily folded in a folded state.
Specifically, since the folding of the folded and opened package is assisted by the folding ruled line attached to the flat member, the bending resistance of the flat member applied when folding in a folded state is reduced.

As a result, the folded and opened packaging body can be easily folded in a two-fold state, and more securely peeled off the part that is detachably attached in the opening area corresponding to the interval between the cuts formed in the diameter of each member. can do.
As a result, it is possible to prevent an unsuccessful opening, and the contents enclosed in the package body can be more reliably taken out from the part where the members are peeled and opened.

  According to the present invention, the folded opening packaging body and the folding opening packaging body capable of preventing the sealing by the sealing material from being released before the folding portion is bent to a predetermined folding angle or less. An unsealing structure can be provided.

Explanatory drawing of the bending opening packaging body of Example 1 which covers a sealing material with a protective film. Explanatory drawing of the opening structure in a bending opening packaging body. Explanatory drawing at the time of heat-pressing a sealing material to a sheet | seat member. Explanatory drawing at the time of taking out the contents from a folding opening packaging body. Explanatory drawing of the bending opening packaging body of Example 2 which covers a sealing material with a protective film. Explanatory drawing of the bending opening packaging body of Example 3 which covers a sealing material with a protective layer. Explanatory drawing of the bending opening packaging body of Example 4 which covers a sealing material with a protective layer. Explanatory drawing of the bending opening packaging body of Example 5 which provided the bending ruled line. Explanatory drawing of the other example of the bending opening packaging body shown in FIG. Explanatory drawing of the bending opening packaging body of Example 6 provided with the opening structure. Explanatory drawing at the time of taking out the contents from a folding opening packaging body. Explanatory drawing of the folding opening packaging body of Example 7 provided with the opening structure. Explanatory drawing of the opening structure in a bending opening packaging body. Explanatory drawing at the time of taking out the contents from a folding opening packaging body. Explanatory drawing of the notch | incision formed in the arrangement | positioning desired.

  An embodiment of the present invention will be described in detail with reference to the drawings.

Example 1
FIG. 1 is an explanatory view of a folded unwrapped package 10A of Example 1 having an unsealed structure. Specifically, FIG. 1 (a) is a perspective view of the folded unwrapped package 10A viewed obliquely from above, FIG. (B) is the top view which looked at 10 A of bending opening packaging bodies from the surface side.

  FIG. 2 is an explanatory view of the opening structure in the folded opening package 10A. Specifically, FIG. 2 (a) is a cross-sectional view of the folded opening package 10A divided at the center in the width direction W, FIG. (A) is an a section enlarged sectional view shown in (a).

  FIG. 3 is an explanatory diagram when the sealing material 40 is thermocompression bonded to the sheet member 20. Specifically, FIG. 3A is an enlarged cross-sectional view of a portion where the sealing material 40 is thermocompression bonded to the sheet member 20. 3 (b) is an enlarged cross-sectional view of a portion where the peripheral edge 40 a of the sealing material 40 is bitten into the sheet member 20.

  FIG. 4 is an explanatory view when the contents C are taken out from the folded open package 10A of Example 1, and more specifically, FIG. 4 (a) is a side view of a state in which the folded open package 10A is started to be folded, FIG. 4B is a side view of the folded unwrapped package 10A.

  In FIG. 1, the longitudinal direction L is a direction that coincides with the longitudinal direction L of the folded unsealed package 10 </ b> A having a substantially rectangular shape in plan view, and the width direction W (short direction) is relative to the longitudinal direction L. In the plane direction.

  The folded and opened packaging body 10A of the first embodiment includes a main body portion 12 having a flexible structure in which a small-sized packaging body 11 having a small capacity in which contents C are enclosed is formed in a bag shape, and the main body portion 12. It is comprised with the cover part 13 provided with the opening structure which obstruct | occludes an upper surface side opening part (refer FIG. 1 (a) (b)).

  The main body 12 is formed of a synthetic resin film (for example, trade name Diamilon F manufactured by Mitsubishi Plastics Co., Ltd.) having a thickness of 100 μm. Inside the main body 12, there is formed an accommodation portion 14 that accommodates (fills) the amount of contents C required for one use (see FIGS. 2A and 2B).

  The lid portion 13 is a flat synthetic resin sheet member 20 disposed on the side (lower side) corresponding to the inside of the package body 11, and the side (upper side) of the sheet member 20 corresponding to the outside of the package body 11. ) And the protective film 50 made of a synthetic resin bonded so as to cover the upper surface of the sealing material 40. The rear surface side peripheral portion of the lid portion 13 (sheet member 20) is thermally welded to the opening side peripheral portion of the main body portion 12 (see FIGS. 2A and 2B).

  At the center of the sheet member 20 in the longitudinal direction L, a foldable folding portion 15 is formed in the width direction W perpendicular to the longitudinal direction L of the sheet member 20 (direction corresponding to the folding direction G). (See FIGS. 1A and 1B).

  An unsealed region 16 indicated by a two-dot chain line in FIG. 1 is set at the center of the bent portion 15 in the width direction W. A slit-shaped cut 21 that can penetrate in the thickness direction T is formed in the opening region 16 by bending the sheet member 20. The cuts 21 are formed in the width direction W so as to intersect the longitudinal direction L of the sheet member 20 (see FIGS. 1 and 2).

  The notch 21 is formed in an arc shape that projects in an arc shape toward one end side (the same direction) in the longitudinal direction L of the sheet member 20 when the sheet member 20 is viewed from the thickness direction T. The width Wi of the notch 21 is formed to be equal to or less than the width (preferably about 70% or less) based on the width of the sheet member 20 (see FIGS. 1A and 1B).

  It should be noted that a plurality of connected portions may be formed on the opposing edge portion facing the longitudinal direction L in the cut 21. Before the sheet member 20 is bent, it is possible to prevent the opposite edge portions of the cuts 21 from being alternately displaced with respect to the thickness direction T. Thereby, it can prevent that the intensity | strength of the sealing material 40 becomes weak partially, for example, the score corresponding to the notch 21 is attached to the sealing material 40.

  The sheet member 20 includes an amorphous polyethylene terephthalate (A-PET) sheet base 20a formed to a thickness of 0.3 mm, and a polyethylene sealing material 20b bonded to cover both the front and back surfaces of the sheet base 20a. It is formed in a three-layer structure (see an enlarged view of part a in FIG. 2B).

  The sheet base portion 20a is formed to have a thickness included in a range of 0.1 mm to 1.0 mm, desirably a thickness included in a range of 0.2 mm to 0.5 mm. The sealing material 20b is formed to have a thickness included in a range of 0.01 mm to 0.5 mm, desirably a thickness included in a range of 0.03 mm to 0.3 mm.

  In addition, when the contents C that require gas barrier properties and moisture resistance are sealed, for example, a seal (not shown) is provided between the sheet base portion 20a and the sealing material 20b by combining vapor deposition, coating, or processing. A layer is formed.

  The sealing material 40 is attached to the upper surface in the opening region 16 set in the bent portion 15 in the sheet member 20 so as to cover the cuts 21 in the opening region 16. The sealing material 40 is slightly smaller than the opening region 16 and is formed in a size and shape that covers the cut 21 in the opening region 16 (see FIGS. 1 and 2).

  The sealing material 40 stuck in the opening region 16 is composed of an aluminum foil having a thickness of 11 μm and a heat-sealable acrylic copolymer coated on both the front and back surfaces of the aluminum foil. A sealing material 40b for bonding to the upper surface of the sheet member 20 is attached to the back surface side of the sealing material 40 (see FIGS. 2 and 3).

  The protective film 50 is attached so as to cover the upper surface of the sealing material 40 with respect to the upper surface of the sealing material 40 attached in the opening region 16. The protective film 50 is slightly smaller than the opening region 16 and is formed in a size and shape that covers the upper surface of the sealing material 40 (see FIGS. 1 and 2).

  The sealing material 40 and the protective film 50 have a thickness or hardness that can be broken or peeled off when the bent portion 15 of the sheet member 20 is bent at a predetermined bending angle θ or less. Is formed. (See FIGS. 4 (a) and 4 (b))

  The thickness of the protective film 50 is formed to be substantially the same as that of the sealing material 40, but if the sheet member 20 can be broken or peeled off, the thickness of the sealing material 40 can be reduced. It may be made thinner or thicker.

  The sealing material 40 and the protective film 50 cover the notch 21 in the unsealed region 16 with respect to the upper surface in the unsealed region 16 that becomes the mountain side when the folded portion 15 of the sheet member 20 is folded in a folded state. (See FIG. 3A).

  Specifically, the sealing material 40 is disposed so as to cover the cuts 21 with respect to the upper surface in the opening region 16 in the bent portion 15. The protective film 50 is disposed so as to cover the sealing material 40 with respect to the upper surface of the sealing material 40.

  With the sealing material 40 and the protective film 50 being stacked one above the other, the sheet 60 is pressed in the thickness direction T by the thermocompression-bonding die 60 and the inside of the unsealed region 16 set in the bent portion 15 of the sheet member 20. It is thermocompression bonded to the upper surface (see FIG. 3A).

  In order to heat-press the aluminum foil sealing material 40 to the sheet member 20, the sealing material 40 was brought into close contact with the upper surface of the sheet member 20 without using a sealing material 40 b or an adhesive (not shown). It can be thermocompression bonded to the state (see FIG. 3A).

  As conditions for thermocompression bonding, for example, the sheet member 20 is an A-PET sheet having a thickness of 0.25 mm, the sealing material 40 is an aluminum foil having a thickness of 15 μm, the pressure bonding area is 10 mm × 20 mm, and the heating temperature is 130. The pressurization time is 0.2 seconds and the applied pressure is 15 kg (10 mm × 20 mm).

A method for taking out the contents C from the folded and opened package 10A configured as described above will be described.
First, the folded and opened package 10A is held in a state in which the lid 13 of the package body 11 faces downward, and then the folded portion 15 of the sheet member 20 is folded in a folded state in the folding direction G.

  When the bent portion 15 is bent to a predetermined bending angle θ or less, the notch 21 is penetrated in the thickness direction T due to the bending of the bent portion 15, and is stuck in the opening region 16 of the bent portion 15. The sealed sealing material 40 is broken, and the protective film 50 is peeled off or broken to release the sealing (see FIGS. 4A and 4B).

  That is, since the folded portion 15 is folded in a folded state so that the sheet member 20 is on the inside and the main body portion 12 is on the outside, the bending portion 15 is compared with the radius of curvature of the inner sheet member 20 by the thickness of the sheet member 20. Thus, the curvature radii of the sealing material 40 and the protective film 50 become larger.

  The inner sheet member 20 is compressed by bending, but the outer sealing material 40 and the protective film 50 are pulled in the bending direction G by the pulling force applied to the bending portion 15, so that the bending is performed. The sealing material 40 stuck in the opening region 16 of the part 15 can be broken, and the protective film 50 can be peeled or broken to release the sealing (see FIGS. 4A and 4B).

As a result, the notch 21 of the sheet member 20 is communicated with the accommodating portion 14 of the main body portion 12 and is opened to a size and shape that allows the contents C to be taken out (see FIGS. 4A and 4B). .
As a result, the contents C accommodated in the accommodating part 14 can be smoothly taken out from the cut 21.

  And since the sealing material 40 which seals the notch 21 in the state which sealed the notch 21 of the bending part 15 with the sealing material 40 is covered with the protective film 50, it is bent during transport and carrying It is possible to prevent the other folded opened package 10A from coming into contact with, rubbing with, or coming into contact with the sealing material 40 covered with the protective film 50 in the opened package 10A.

Accordingly, it is possible to reliably prevent the sealing material 40 from peeling off or dripping, and therefore, the bent portion 15 is bent to a predetermined folding angle θ or less, and sealing with the sealing material 40 is performed. The state sealed by the sealing material 40 can be maintained until immediately before the release of sealing.
As a result, it is possible to prevent the contents C stored in the storage portion 14 from leaking before the sealing of the sealing material 40 is released by bending the bending portion 15.

  Further, when the bent portion 15 is folded in half, the tongue piece portion 21a of the cut 21 protrudes obliquely downward on the lower side, so that the contents C are pushed out while contacting the tongue piece portion 21a. Thereby, the content C accommodated in the accommodating part 14 is hard to be pushed out at a stretch, and it can prevent the content C scattering around (refer FIG.4 (b)).

  Furthermore, even if one member of the sealing material 40 and the protective film 50 is broken or peeled off, the sheet member 20 is sealed with the other member. The sealed state can be maintained until the sealing by both the sealing material 40 and the protective film 50 is released without being communicated with the housing portion 14.

  Thereby, the content C enclosed in the accommodating portion 14 of the main body portion 12 leaks from the cut 21 before the folded open packaging body 10 </ b> A is folded in a folded state and the sealing by the sealing material 40 is released. This can be surely prevented.

  Hereinafter, other examples of the above-described folded opened package 10A will be described. In this description, parts that are the same as or equivalent to those in the above configuration are denoted by the same reference numerals, and detailed description thereof is omitted.

  In Example 1 described above, the sealing material 40 and the protective film 50 are heated and pressure-bonded to the sheet member 20 while being superposed on each other, but as shown in FIG. Further, the peripheral edge 50a of the protective film 50 may be thermocompression-bonded in a state where the peripheral portion 50a is bitten into a predetermined depth with respect to the upper surface of the sheet member 20 by the thermocompression-bonding die 60.

  Specifically, the peripheral edge portion 40a of the sealing material 40 and the peripheral edge portion 50a of the protective film 50 in the folded open package 10A are thermocompression-bonded in a state where they are bitten to a predetermined depth with respect to the upper surface of the sheet member 20. Therefore, it can prevent that a level | step difference arises in the upper surface of the sheet | seat member 20, and the peripheral part 50a of the protective film 50 (refer FIG.3 (b)).

  Thereby, during transportation or transportation, the other folded opened packaging body 10A contacts or rubs against the peripheral edge portion 40a of the sealing material 40 or the peripheral edge portion 50a of the protective film 50 in the folded opened packaging body 10A. Or it can prevent reliably contacting.

As a result, it is possible to reliably prevent the sealing material 40 and the protective film 50 from being peeled off or drowning, so that the effects and effects added to the first embodiment can be achieved.
In addition, even when the peripheral edge 50a of the protective film 50 is touched with a fingertip, there is no feeling of catching, a good touch feeling is obtained at the time of bending, and a smooth and clean surface is obtained, so that the appearance design is improved. .

  In addition, the peripheral edge portion 50 a of the protective film 50 may be heat-pressed so as to have substantially the same height with respect to the upper surface of the sheet member 20. While it can prevent that a level | step difference arises in the upper surface of the sheet member 20, and the peripheral part 50a of the protective film 50, the upper surface of the sheet member 20 and the protective film 50 can be made continuous.

(Example 2)
In Example 1 described above, the example in which the protective film 50 is pasted so as to cover the upper surface of the sealing material 40 has been described. However, as shown in FIG. 5, the protective film 50 is a sheet member including the sealing material 40. A folded unsealed package 10A of Example 2 attached so as to cover the upper surface of 20 will be described.

  FIG. 5 is an explanatory view of the folded and opened package 10A of Example 2 in which the upper surface of the sheet member 20 including the sealing material 40 is covered with a protective film 50. Specifically, FIG. 5 (a) is viewed obliquely from above. FIG. 5B is a plan view of the folded and opened packaging body 10A viewed from the upper surface side.

  10A of bending opening packaging bodies of Example 2 are the sealing material 40 with respect to the upper surface of the sealing material 40 stuck in the opening area | region 16 of the bending part 15 in the sheet | seat member 20. It sticks so that the substantially whole upper surface of the sheet | seat member 20 containing may be covered.

  The protective film 50 is larger than the sealing material 40 and has a size and shape that covers the upper surface of the sheet member 20 including the sealing material 40. Specifically, the sheet member 20 is formed to have a size and shape that is slightly smaller than the sheet member 20, outside the peripheral edge portion 40 a of the sealing material 40, and covering the upper surface inside the peripheral edge portion of the sheet member 20.

That is, since the upper surface of the sheet member 20 including the sealing material 40 is covered with the protective film 50, the periphery of the sealing material 40 covered with the protective film 50 in the folded open package 10 </ b> A during transportation or transportation. It is possible to more reliably prevent the other folded opened package 10A from coming into contact with, rubbing with, or coming into contact with the portion 40a (see FIGS. 5A and 5B).
Thereby, since it can prevent more reliably that the sealing material 40 peels or drowns, there can exist an effect | action and effect of Example 2 added to the said Example 1. FIG.

(Example 3)
In Examples 1 and 2 described above, the example in which the protective film 50 is attached so as to cover the upper surface of the sealing material 40 has been described. However, as illustrated in FIG. A folded and opened package 10A of Example 3 formed so as to be covered will be described.

  FIG. 6 is an explanatory view of the folded and opened package 10A of Example 3 in which the upper surface of the sealing material 40 is covered with a protective layer 51. Specifically, FIG. 6 (a) is a folded and opened package as viewed obliquely from above. 6A is a perspective view of the body 10A, and FIG. 6B is a cross-sectional view of the folded and opened package 10A divided at the center in the width direction W. FIG.

  In the folded open package 10A of Example 3, the protective layer 51 made of synthetic resin is formed so as to cover the upper surface of the sealing material 40, and therefore in the folded open package 10A during transportation and transportation. It is possible to reliably prevent the other folded open package 10A from coming into contact with, rubbing with, or coming into contact with the sealing material 40 covered with the protective layer 51 (FIGS. 6A and 6B). reference).

  Accordingly, it is possible to reliably prevent the sealing material 40 from peeling or dripping, and the protective layer 51 is placed on the upper surface of the sealing material 40 even when the upper surface of the sealing material 40 is distorted. Since it can form in the state closely_contact | adhered with respect to it, the effect | action and effect of Example 3 added to the said Example 1 can be show | played.

Example 4
In Example 3 described above, the example in which the protective layer 51 is formed so as to cover the upper surface of the sealing material 40 has been described. However, as illustrated in FIG. 7, the protective layer 51 is formed of the sheet member 20 including the sealing material 40. A folded and opened package 10A of Example 4 formed so as to cover the upper surface of the sheet will be described.

  FIG. 7 is an explanatory view of the folded and opened package 10A of Example 4 in which the upper surface of the sheet member 20 including the sealing material 40 is covered with a protective layer 51. Specifically, FIG. FIG. 7B is a cross-sectional view of the folded and unwrapped package 10A divided at the center in the width direction W. FIG.

  10A of folding opening packaging bodies of Example 4 are the sealing material 40 with respect to the upper surface of the sealing material 40 which stuck the protective layer 51 in the opening area | region 16 of the bending part 15 in the sheet | seat member 20. FIG. It forms so that the substantially whole upper surface of the sheet | seat member 20 containing may be covered.

  The protective layer 51 is larger than the sealing material 40 and is formed in a size and shape that covers the upper surface of the sheet member 20 including the sealing material 40. Specifically, the sheet member 20 is formed to have a size and shape that is slightly smaller than the sheet member 20, outside the peripheral edge portion 40 a of the sealing material 40, and covering the upper surface inside the peripheral edge portion of the sheet member 20.

  That is, since the upper surface of the sheet member 20 including the sealing material 40 is covered with the protective layer 51, during transportation or transportation, the sealing material 40 covered with the protective layer 51 in the folded open package 10A is used. It is possible to more reliably prevent the other folded open package 10A from coming into contact with, rubbing against, or coming into contact with each other (see FIGS. 7A and 7B).

  As a result, it is possible to more reliably prevent the sealing material 40 from peeling or dripping, and a step is generated between the upper surface of the sheet member 20 and the peripheral edge 40a of the sealing material 40, or the sealing material 40 is sealed. Even if the upper surface of the stopper 40 is distorted, the protective layer 51 can be formed in a more closely contacted state with the upper surface of the sheet member 20 including the sealing member 40. The effects and effects of the fourth embodiment added to the above can be achieved.

(Example 5)
In the above-described Examples 1 to 4, an example in which the folded and unsealed package 10A is folded in two along the folded portion 15 has been described. However, as shown in FIG. A description will be given of the attached folded opened package 10A of the fifth embodiment.

  FIG. 8 is an explanatory view of a folded unwrapped package 10A of Example 5 with a folding ruled line 25 attached thereto. Specifically, FIG. 8 (a) is a perspective view of the folded unwrapped package 10A as viewed obliquely from above. 8 (b) is a plan view of the folded and opened package 10A as viewed from the upper surface side.

  The folding ruled line 25 is attached in the width direction W perpendicular to the longitudinal direction L of the sheet member 20 between both ends of the sheet member 20 in the width direction W and both ends of the cut 21 in the width direction W. ing. On the bottom of the bent ruled line 25, convex portions formed on the bottom portion (not shown) and concave portions lower than the convex portions are arranged in the axial direction.

  When folding the folded open package 10A of Example 5 in two, the folding of the sheet member 20 is assisted by the folding ruled lines 25, so that the bending resistance applied when the sheet member 20 is folded in a folded state is reduced. .

Accordingly, the folded and opened package 10A can be accurately and easily folded in the folded state, and the cut 21 of the sheet member 20 can be penetrated in the thickness direction T.
Furthermore, since the sealing material 40 and the protective film 50 can be more reliably broken and peeled to release the seal, the effects and effects of the fifth embodiment added to the first embodiment can be achieved. .

In addition, as shown in FIG. 9, the folding ruled line 25 may be provided obliquely across the longitudinal direction L and the width direction W.
FIG. 9 is an explanatory view of another example of the folded and opened packaging body 10A shown in FIG. 8. Specifically, FIG. 9 (a) is a perspective view of the folded and opened packaging body 10A viewed obliquely from above, and FIG. b) is a plan view of the folded open package 10A as viewed from the upper surface side.

  The folding ruled line 25 described above is obliquely intersecting the longitudinal direction L and the width direction W of the sheet member 20 between both ends of the sheet member 20 in the width direction W and both ends of the cut 21 in the width direction W. Inclined at a predetermined angle.

  When folding the folded and opened package 10A in two, the folding of the sheet member 20 is assisted by the folding ruled lines 25, so that the bending resistance applied when the sheet member 20 is folded in a folded state is reduced.

  Accordingly, the folded and opened package 10A can be folded more accurately and easily, and the folded portion 15 is deformed so as to be warped, so that the cut 21 of the sheet member 20 can be penetrated in the thickness direction T.

Furthermore, since the sealing material 40 and the protective film 50 can be more reliably broken and peeled to release the seal, the effects and effects added to the first embodiment can be achieved.
In addition, you may attach the bending ruled line 25 of the said Example 5 to 10A of bending opening package bodies of Examples 2-4. Further, the bent ruled line 25 may be attached to a smooth curved shape such as an arc shape or a wave shape.

(Example 6)
In Examples 1 to 5 described above, the folded and opened package 10A in which the sealing material 40 is bonded to the sheet member 20 has been described. However, as illustrated in FIGS. Next, the folded and opened package 10B of Example 6 bonded together will be described.

  FIG. 10 is an explanatory view of a folded and opened package 10B of Example 6 having an opened structure. Specifically, FIG. 10 (a) is a perspective view of the folded and opened package 10B viewed obliquely from above, FIG. (B) is a top view of the folding opening packaging body 10B seen from the upper surface side.

  FIG. 11 is an explanatory diagram when the contents C is taken out from the folded open package 10B. Specifically, FIG. 11A is a cross-sectional view of the folded open package 10B divided at the center in the width direction W. FIG.11 (b) is a side view of the folding opening packaging body 10B in the middle of folding in half.

  In the folded unwrapped package 10 </ b> B of Example 6, the flexible package body 11 with the contents C enclosed therein is the sheet member 20 in one of the substantially flat film members 30 of the pair of film members 30. With the bonded surfaces inside, the outer peripheral portion of the film members 30 outside the sheet member 20 is thermally welded (see FIGS. 10 and 11).

  A folded portion 15 that can be folded in two is formed at the center in the longitudinal direction L of the film member 30 to which the sheet member 20 is bonded. In the opening region 16 set at the center of the bent portion 15 in the width direction W, cuts 21 and 31 that can penetrate the members 20 and 30 in the thickness direction T are formed (FIGS. 10 and 10). 11).

  In both end portions of the sheet member 20 in the width direction W corresponding to the bent portions 15, recessed portions 24 that are recessed from the both end portions in the width direction W toward the center portion are formed. A protective film 50 made of synthetic resin is attached to the upper surface of the sealing material 40 so as to cover the upper surface of the sealing material 40 (see FIGS. 10 and 11).

When the contents C is taken out from the folded open package 10B of Example 6, the folded portion 15 of the folded open package 10B is folded in a folded state, and the cuts 21 and 31 of the members 20 and 30 are formed in the thickness direction T. The sealing material 40 is broken and the protective film 50 is peeled or broken to release the seal (see FIG. 11).
Thereby, the contents C accommodated in the accommodating part 14 can be smoothly taken out from the notches 21 and 31 while contacting the tongue piece part 321a of the notch 31.

  Since the sealing material 40 that seals the cuts 21 is covered with the protective film 50 in a state where the cuts 21 of the bent portion 15 are sealed by the sealing material 40, the sealing material 40 covered with the protective film 50. In addition, it is possible to prevent the other folded opened package 10A from coming into contact with, rubbing against, or coming into contact with each other.

  Accordingly, it is possible to reliably prevent the sealing material 40 from peeling or dripping, and the bending portion 15 is bent to a predetermined bending angle θ or less so that the sealing material 40 is sealed. The state sealed by the sealing material 40 can be maintained until immediately before the release of sealing.

  Further, since the lateral width of the bent portion 15 in the sheet member 20 is formed narrower than the other portions by the amount of the recessed portion 24, the rigidity of the bent portion 15 is weaker than that of the other portions, and the folded portion 15 is folded. Since the bend-open package 10B can be easily folded into a folded state, the effects and effects of the sixth embodiment added to the first embodiment can be achieved.

In addition, the upper surface of the sealing material 40 in Example 6 may be covered with the protective layer 51, or the upper surface of one film member 30 including the sealing material 40 may be covered with the protective film 50 or the protective layer 51. The effect | action of Example 6 added to the said Examples 1-4, and an effect can be show | played.
Moreover, the package body 11 can also be formed by folding one long film member 30 in a folded state.

(Example 7)
In the sixth embodiment, an example in which the sheet member 20 is bent and the notch 21 of the sheet member 20 and the notch 31 of the film member 30 are penetrated in the thickness direction T to open the sheet member 20 has been described. As shown in FIG. 5, the folded and opened package 10A of Example 7 in which the portion corresponding to the space between the notches 21 and 31 in the members 20 and 30 is peeled to release the seal will be described.

  FIG. 12 is an explanatory view of a folded unwrapped package 10A according to Example 7 having an unsealed structure. Specifically, FIG. 12 (a) is a perspective view of the folded unwrapped package 10A viewed from obliquely above, FIG. (B) is a top view of 10 A of bending opening packaging bodies seen from the upper surface side.

  FIG. 13 is an explanatory view of the opening structure in the folded open package 10A. Specifically, FIG. 13A is a cross-sectional view of the folded open package 10A divided at the center in the width direction W, FIG. ) Is an enlarged cross-sectional view of part b shown in FIG.

  FIG. 14 is an explanatory view when the contents C are taken out from the folded open package 10A. Specifically, FIG. 14 (a) is a front view of the folded open package 10A folded in two, FIG. 14 (b). ) Is a partially enlarged cross-sectional view when the content C is taken out from the folded open package 10A.

  In the folded unwrapped package 10A of the seventh embodiment, in the unsealed region 16 of the folded portion 15 in the sheet member 20 and the film member 30, incisions 21 and 31 that can penetrate in the thickness direction T are provided in the longitudinal direction L. Are arranged at a predetermined interval S. The predetermined interval S is set to an interval included in a range of about 0 to about 100 times (preferably about 10 times) the wall thickness of the sheet member 20 (see FIGS. 12 and 13).

  The opposing surfaces in the unsealed region 16 corresponding to between the notches 21 and 31 in the members 20 and 30 are pasted so as to be detachable by an adhesive layer N1 having a detachable adhesive force interposed between the opposing surfaces. ing. The facing surfaces of the members 20 and 30 outside the unsealed region 16 are bonded to each other so as not to be peeled by an adhesive layer N2 having a non-removable adhesive force interposed between the facing surfaces (FIG. 13B). (See the enlarged view of part b).

  On the upper surface in the opening region 16 set in the bent portion 15 in the sheet member 20, the sealing material 40 is attached so as to cover the cuts 21 in the opening region 16. A protective film 50 is attached to the upper surface of the sealing material 40 so as to cover the upper surface of the sealing material 40 (see FIGS. 12 and 13).

  When the contents C is taken out from the folded and opened package 10A of Example 7, the folded portion 15 of the package body 11 is folded in a folded state, and the opening corresponding to the space between the notches 21 and 31 in the members 20 and 30 is obtained. The part of the region 16 that is peelably attached is peeled and opened against the adhesive force of the adhesive layer N1, and the cuts 21 and 31 are penetrated in the thickness direction T (see FIGS. 14A and 14B). .

  Since the sealing material 40 and the protective film 50 are pulled toward the bending direction G by the pulling force applied to the bent portion 15, the sealing material 40 and the protective film 50 can be broken and peeled to release the seal, and the accommodating portion 14 can be taken out while contacting the tongue pieces 21a and 321a of the cuts 21 and 31 (see FIGS. 14A and 14B).

  Since the sealing material 40 that seals the cuts 21 is covered with the protective film 50 in a state where the cuts 21 of the bent portion 15 are sealed by the sealing material 40, the sealing material 40 covered with the protective film 50. In addition, it is possible to prevent the other folded opened package 10A from coming into contact with, rubbing against, or coming into contact with each other.

  Thereby, it is possible to reliably prevent the sealing material 40 from peeling or dripping, and to bend the folded portion 15 in a folded state to release the sealing by the sealing material 40 Since the state sealed with the sealing material 40 can be maintained until immediately before the release, the operation and effect of the seventh embodiment added to the first embodiment can be achieved.

  In addition, the upper surface of the sealing material 40 in Example 7 may be covered with the protective layer 51, or the upper surface of the sheet member 20 including the sealing material 40 may be covered with the protective film 50 or the protective layer 51. The effect | action of Example 7 added to Examples 1-4 and an effect can be show | played. Moreover, even if the cuts 21 and 31 of the same shape are arranged up and down, the sealing material 40 covering the cuts 21 and 31 can be protected by the protective film 50 or the protective layer 51.

In Examples 1 to 7 described above, the arc-shaped cuts 21 and 31 have been described as being covered with the protective film 50 or the protective layer 51. However, the cuts 21 and 31 arranged as shown in FIG. You may cover with 50.
FIG. 15 is an explanatory view in which the cuts 21 and 31 are covered with a protective film 50.

  Specifically, the cuts 21 and 31 covered with the protective film 50 are arranged in a substantially X shape in a plan view shown in FIG. 15A or in a substantially H shape in a plan view shown in FIG. Or it is arrange | positioned in planar view substantially square shape shown in FIG.15 (c).

  When the folded portion 15 is folded in a folded state, the cuts 21 and 31 in the unsealed region 16 are penetrated in the thickness direction T, and the cuts 21 and 31 are divided into a plurality corresponding to the arrangement shown in FIG. It is opened in the sealed state.

That is, since the content C is pushed out while being brought into contact with a portion (for example, a side portion or an edge portion) divided into a plurality of portions by the cuts 21 and 31, it is brought into contact with one tongue piece portion 21a shown in FIG. It is possible to more reliably prevent the contents C from being pushed out at once, because there are more parts to contact.
Instead of the protective film 50 described above, the cuts 21 and 31 formed in a desired arrangement may be covered with the protective layer 51.

In the correspondence between the configuration of the present invention and the embodiment,
The folded and opened package of this invention corresponds to the folded and opened packages 10A and 10B of the embodiment,
Similarly,
The flat member corresponds to the sheet member 20 and the film member 30,
The sealing material protection part corresponds to the protective film 50 and the protective layer 51,
The present invention is not limited to the configuration of the above-described embodiment, but can be applied based on the technical idea shown in the claims, and many embodiments can be obtained.

  In Examples 1 to 7 described above, the opening structure is provided in the folded opening packaging bodies 10A and 10B that are small containers having a small capacity. For example, the opening structure is provided in a bag-shaped packaging body that is a large container having a large capacity. Also good. Specifically, it may be provided on one side upper part or the central upper part of the package, or may be provided on a protruding part protruding toward the outside of the package.

  In Examples 2 and 4 described above, the example in which the upper surface of the sealing material 40 is covered with the protective film 50 or the protective layer 51 larger than the sealing material 40 has been described. If so, the entire upper surface of the sheet member 20 may be covered with the protective film 50 or the protective layer 51.

  In Examples 1-7, although the sealing material 40 is stuck in the opening area | region 16 of the bending part 15, if it can cover the notches 21 and 31, the sheet | seat which contains the sealing material 40 You may stick so that the upper surface of the member 20 may be covered.

  The cuts 21 and 31 are formed in an arc shape, but may be formed in a desired shape such as a linear shape, a wave shape, a double mountain shape, a trapezoidal shape, a gate shape, an M shape, or a V shape. It is not limited only to the shapes of Examples 1-7.

G ... Bending direction L ... Longitudinal direction W ... Width direction T ... Thickness direction C ... Contents N1, N2 ... Adhesive layer 10A, 10B ... Folded and opened packaging body 11 ... Packaging body body 12 ... Body portion 13 ... Lid portion 14 DESCRIPTION OF SYMBOLS ... Accommodating part 15 ... Bending part 16 ... Opening region 20 ... Sheet member 30 ... Film member 21, 31 ... Notch 24 ... Indentation part 25 ... Bending ruled line 40 ... Sealing material 50 ... Protective film 51 ... Sealing layer

Claims (12)

At least a part of the package body containing the contents inside,
Consists of a flat member having a foldable portion that can be folded in a two-fold state,
In the opening region set in the bent portion,
A notch that can penetrate in the thickness direction of each member is formed by bending the bent portion,
On the outer surface of the flat member corresponding to the outside of the package body,
A sealing material for sealing the cut is attached so as to cover the cut,
On at least the upper surface of the sealing material in the flat member,
A folded unsealed package formed so that a sealing material protecting part for protecting the sealing material covers the sealing material. The sealing material protection part is
The folded opening package of Claim 1 formed so that the upper surface of the said sealing material might be covered. The sealing material protection part is
The folded open packaging body according to claim 1, which is formed so as to cover an upper surface of the flat member including the sealing material. The sealing material protection part is
The folded-open package according to any one of claims 1 to 3, which is formed of a protective film or a protective layer formed with a thickness substantially equal to that of the sealing material. The notches formed in each member are
Arranged at a predetermined interval with respect to the direction corresponding to the bending direction of the bent portion,
The folding opening packaging body as described in any one of Claims 1-4 by which the opposing surfaces in the said opening area | region in each said member were stuck by the adhesive layer interposed between this opposing surfaces so that peeling was possible. . The folded unwrapped package according to claim 5, wherein a folding ruled line for assisting the folding of the flat member is provided between both ends of the flat member in the width direction and both ends of the cut in the width direction. A part of the package body that encloses the contents therein is a folding structure for opening the folded package body that is opened by folding the package body in a folded state,
At least a part of the package body is
Consists of a flat member having a foldable portion that can be folded in a two-fold state,
In the opening region set in the bent portion,
A notch that can penetrate in the thickness direction of each member is formed by bending the bent portion,
On the outer surface of the flat member corresponding to the outside of the package body,
A sealing material for sealing the cut is attached so as to cover the cut,
On at least the upper surface of the sealing material in the flat member,
An opening structure of a folded opening packaging body in which an encapsulant protecting part for protecting the encapsulant is formed so as to cover the encapsulant. The sealing material protection part is
The opening structure of the folding opening packaging body of Claim 7 formed so that the upper surface of the said sealing material might be covered. The sealing material protection part is
The opening structure of the folding opening packaging body of Claim 7 formed so that the upper surface of the said flat member containing the said sealing material might be covered. The sealing material protection part is
The opening structure of the folding opening packaging body as described in any one of Claims 7-9 comprised with the protective film formed in the thickness substantially equivalent to the said sealing material, or a protective layer. The notches formed in each member are
Arranged at a predetermined interval with respect to the direction corresponding to the bending direction of the bent portion,
The folding opening packaging body as described in any one of Claims 7-10 by which the opposing surfaces in the said opening area | region in each said member were stuck so that peeling was possible by the contact bonding layer interposed between this opposing surfaces. Opening structure. The folding unsealed package according to claim 11, wherein folding ruled lines for assisting bending of the flat member are provided between both ends of the flat member in the width direction and both ends of the cut in the width direction. Construction.

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