CN205770591U

CN205770591U - Container and package body

Info

Publication number: CN205770591U
Application number: CN201620502300.4U
Authority: CN
Inventors: 竹内雅规
Original assignee: Showa Denko Packaging Co Ltd
Current assignee: Resonac Packaging Corp
Priority date: 2015-06-01
Filing date: 2016-05-27
Publication date: 2016-12-07
Anticipated expiration: 2026-05-27
Also published as: JP2016222345A; TW201704104A; TWI650272B; JP6738625B2

Abstract

This utility model provides a kind of container with cheap price and employs the package body of this container, this container by the composite sheet molding with the excellent metal foil layer of barrier is constituted, it will not make because of the cutting burr that produces at the end face of flange part consumer's finger etc. feel awkward, unhappy again or pain.Container (2) by the two sides of metal foil layer (201) is laminated with resin film layer (202), the composite sheet (20) of (203) is shaped to cup-shaped and constitutes, opening peripheral region has flange part (21), and the top of the cutting burr (201a) that the end face at flange part (21) produces is towards the open side of container (2).

Description

Container and package body

Technical field

This utility model relates to being molded into the composite sheet with metal foil layer and resin film layer Cup-shaped and the container that constitutes and the package body employing this container.

Specifying in this specification and claims book, " cutting burr " refers to, because of to above-mentioned Composite sheet before the forming or cuts after molding, and at section i.e. the flange of container The projection of the metal forming that the end face in portion produces.

Background technology

As for packing the container needing the long-term content preserved, it is known that have will be compound Sheet forming is the container that cup-shaped is constituted, wherein composite sheet have to gas, moisture, The metal foil layers such as the aluminium foil that the barrier of light etc. is excellent and be layered in this metal foil layer one side or The resin film layer that person is two-sided.

Said vesse is by by the hot melt having such as aluminium foil layer be layered in its inner surface The lid that the composite sheet of connecing property resin film layer is formed, thermal welding has flange at opening periphery Portion is also filled with the flange part of container of content, formed package body (referring for example to following specially Profit document 1～3).

Prior art literature

Patent documentation

Patent documentation 1: Japanese Unexamined Patent Publication 3-14476 publication

Patent documentation 2: Japanese Unexamined Patent Publication 4-147825 publication

Patent documentation 3: Japanese Unexamined Patent Publication 6-345123 publication

Utility model technical problem to be solved

For said vesse, generally, after composite sheet is shaped to cup-shaped, be to convex The circumference of edge cuts (cutting edge), so that flange part becomes given size.Therebetween, By the method such as the gap that makes the upper and lower mould of edge-cutting device is the least, make section, also The end face being exactly flange part does not produce cutting burr, but while it is true, generation top is sharp The situation of cutting burr the most still have.

It is therefoie, for example, consumer is breaking a seal the lid stripping of package body when, Sometimes the cutting burr of container flange end surface is encountered finger and is made us feeling awkward or not Hurry up, and when firmly catching this end face, finger pain may be felt.

Additionally, also only had a kind of flange part making container to crimp so that end face reveals not by people Container out, but in order to make flange part crimp, the shape of mould can become complicated, And operation also can increase, so there is cost to raise such problem.

Utility model content

The purpose of this utility model is to provide one will have barrier excellence with cheap price The composite sheet molding of metal foil layer and the container that constitutes and the packaging employing this container Body, and this container and package body will not be because of the cutting burrs of the end face of flange part generation Consumer's finger etc. is made to feel awkward, unhappy or pain.

The technological means of solution problem

In order to reach above-mentioned purpose, this utility model includes following form.

1) a kind of container, is being laminated with resin film layer at least one side of metal foil layer Composite sheet is molded into cup-shaped and constitutes and have at opening periphery the container of flange part, wherein, Generation is in the top open side towards container cutting burr of the end face of flange part.

2) such as above-mentioned 1) as described in container, wherein, composite sheet has and is layered in metal forming The resin film layer of the inner surface of layer, the thickness of this resin film layer is more than or equal to the thickness of metal foil layer Degree.

3) such as above-mentioned 2) as described in container, wherein, be layered in the inner surface of metal foil layer Resin film layer, by stacking, the composite membrane of the resin molding of more than 2 is constituted, in composite membrane The thickness of the resin molding of metal foil layer side is more than or equal to the thickness of metal foil layer.

4) such as above-mentioned 3) as described in container, wherein, the tree of the metal foil layer side in composite membrane The thickness of adipose membrane is more than the height of cutting burr.

5) such as above-mentioned 3) or 4) as described in container, wherein, the upper surface of flange part is formed Having Kaifeng notch, this Kaifeng notch has and runs through the resin molding of innermost layer side in composite membrane And arrive the degree of depth than this resin molding resin molding top in the outer part of la m.

6) such as above-mentioned 3)～5) in the container as described in any one, wherein, composite membrane have Have and be positioned at the polyethylene resin film of innermost layer side and be layered in gathering outside this polyethylene resin film Allyl resin film.

7) such as above-mentioned 1)～6) in the container as described in any one, wherein, metal foil layer It is made up of aluminium foil.

8) a kind of package body, is will be filled with the opening of the cup-like containers of content lid The package body of the flange part thermal welding of the mode and this container that cover, wherein, container by Above-mentioned 1)～7) in the container described in any one constitute.

9) such as above-mentioned 8) package body, wherein, at lower lid surface circumference because of welding Being formed with the pitch body of the shape that hangs down, pitch body has its top and arrives and cutting hair Horizontal level or arrival that thorn top is identical are cut as the horizontal level below burr top Highly.

The effect of utility model

According to above-mentioned 1) container, due to flange part end face produce cutting burr top Hold the open side towards container, by lid and flange part are carried out heat after filling content Under the state that welding is made for package body, the top of cutting burr is by cap covers, therefore, Consumer, being broken a seal by lid when, will not make hands because of the cutting burr of flange part end face Finger etc. feels awkward, unhappy or pain, it is possible to break a seal giocoso.

It addition, according to above-mentioned 1) container, due to without making flange part curling be hidden by end face, So manufacturing cost can be reduced.

According to above-mentioned 2) container, due to the thickness of the inner surface side resin film layer by metal foil layer Degree is more than or equal to the thickness of metal foil layer, so the top of cutting burr is difficult to flange part Upper surface side highlight.

According to above-mentioned 3) container, owing to the composition in composite membrane is by metal foil layer inner surface side The thickness of resin film layer, metal foil layer side resin molding is more than or equal to the thickness of metal foil layer, Thus, cutting burr along this resin molding end face extend, its top or along or scratch Enter the end face of resin film layer, so, the top of cutting burr is difficult to dash forward from the end face of flange part Out.

According to above-mentioned 4) container, due to the thickness of the resin molding of the metal foil layer side in composite membrane Degree is more than the height of cutting burr, so the top of cutting burr is more difficult to from flange part End face is outstanding.

According to above-mentioned 5) container, owing to being formed with Kaifeng notch at the upper surface of flange part, And Kaifeng notch has and runs through the resin molding of composite membrane innermost layer side and reach than this inner side The degree of depth on the top of layer resin molding resin molding in the outer part, so just can be easily by less power Ground carries out the Kaifeng of lid.

According to above-mentioned 6) container, owing to composite membrane is to have to be positioned at innermost layer side polyethylene tree Adipose membrane and be layered in the composite membrane of polypropylene resin film outside this polyethylene resin film, so The stripping Kaifeng of lid can be easily carried out in two resin film layers interface each other.

According to above-mentioned 7) container, owing to metal foil layer is made up of aluminium foil, so the weight of container Amount is light, excellent to the barrier of gas, moisture, light etc..

According to above-mentioned 8) package body, due to the cutting burr produced at container flange end surface Top towards the open side of container, and be covered by the cap, so at consumer Jiang Gai Son Kaifeng when, will not because of the cutting burr of flange part end face make finger etc. feel awkward, Unhappy or pain, it is possible to break a seal giocoso, it addition, crimp with the flange part making container Scheme is compared, and cost can be made to reduce.

According to above-mentioned 9) package body, due to the existence of pitch body so that consumer Fingers etc. are difficult to and cut the tip contact of burr, so can more reliably avoid in Kaifeng Time feel awkward, unhappy or pain.

Accompanying drawing explanation

Fig. 1 is the vertical sectional view of the package body of the embodiment representing this utility model.

Fig. 2 is the vertical sectional view of partial enlargement of this package body.

Fig. 3 is the vertical sectional view of partial enlargement of the variation representing this package body.

Fig. 4 is the cutting edge work carried out the flange part of the container of this package body of composition for explanation The vertical sectional view of sequence.

Fig. 5 is the vertical sectional view of partial enlargement of the package body representing comparative example

Description of reference numerals

1: package body；2: container；20: composite sheet；21: flange part；201: metal forming Layer；201a: cutting burr；202: heat sealability resin film layer；202a: innermost layer side Resin molding；202b: the resin molding of metal foil layer side；203: heat-resistant resin film layer；22: Kaifeng notch；3: lid；30: composite sheet；301: metal foil layer；302: hot melt Connecing property resin film layer；303: outside resin film layer；4: pitch body；C: content

Detailed description of the invention

Hereinafter, the embodiment of this utility model is described with reference to Fig. 1～4.

Fig. 1 shows being monolithically fabricated of package body of the present utility model.

The package body 1 of diagram, is to utilize container 2 and lid 3 to be filled out by the content C such as food Fill packaging and constitute.

Composite sheet 20 is shaped to cup-shaped and constitutes by container 2, above it opening week Edge has horizontal flat flanges portion 21.

Lid 3 is made up of the composite sheet 30 being cut into given size and shape, and it is to incite somebody to action The mode that the upper opening of the container 2 being filled with content C covers, by circumference thermal welding Flange part 21 upper surface at container 2.

It addition, be formed with grip 31 on lid 3, grip 31 is the periphery from lid 3 A part for circumference in portion is stretched out outward to footpath and carries out breaking a seal being peeled off by lid 3 The part that Shi Houyong finger is seized.

As in figure 2 it is shown, constitute the composite sheet 20 of container 2 by metal foil layer 201, stacking At the heat sealability resin film layer 202 of inner surface of metal foil layer 201 and be layered in metal The heat-resistant resin film layer 203 of the outer surface of layers of foil 201 is constituted.

As metal foil layer 201, it is possible to use aluminium foil, iron foil, stainless steel foil, Copper Foil, but It is preferably to use aluminium foil.Select aluminium foil time, whether pure aluminum foil, or alloy foil can, It addition, soft, hard also can, such as, as long as iron-holder be 0.3wt%～1.5wt%, By A8000 series (particularly A8079H, A8021H) of JIS H4160 criteria classification Soft material (O material) after annealed process, owing to mouldability is excellent, it is possible to suitable Preferably use.

As required, chromate can be carried out at the one side of metal foil layer 201 or two-sided The base treatment such as process.

The thickness of metal foil layer 201 is preferably 20 μm～200 μm.By making above-mentioned thickness exist More than 20 μm, pin hole is few, it can be ensured that barrier, it is possible to obtain deep drawability.By making Above-mentioned thickness is below 200 μm, it is possible to prevent the power being subject to during molding from causing composite sheet to tear, It addition, light containers can be obtained.The thickness of metal foil layer 201, is preferably 40 μm～120 μm.

Heat sealability resin film layer 202 is that the inner surface constituting container 2 (includes flange part 21 Upper surface) layer, by the such as versatility such as polypropylene resin film, polyethylene resin film film Or their composite membrane is constituted.

As composite membrane, such as by the tree using stacking at least 2 the most mutually to peel off Being combined of adipose membrane (resin molding as polyethylene resin film and polypropylene resin film) Film, thus Kaifeng time above-mentioned film be easily peeled off each other, with less power be easy to into Row Kaifeng.In the case of the container 2 shown in Fig. 2, heat sealability resin film layer 202 is By what the composite membrane that 2 resin moldings are bonded was constituted.This composite membrane comprises, such as, The polyethylene resin film 202a of innermost layer side and being layered in outside polyethylene resin film 202a The polypropylene resin film 202b of metal foil layer side.As hereafter will describe, constitute container The polyethylene resin film 202a of flange part 21 upper surface of 2 is thermally fused to lid 3 lower surface Heat sealability resin film layer 302.The grip 31 of lid 3 is pulled upwardly, then hot melt The polyethylene resin film 202a being connected on heat sealability resin film layer 302 and polypropylene resin film 202b peels off, and polyethylene resin film 202a is ruptured around in the inner of heat-fused portion simultaneously, enters The Kaifeng of row lid 3.

It addition, in the case of constituting heat sealability resin film layer 202 with composite membrane, such as Fig. 3 Shown in, at the upper surface of the flange part 21 of container 2, Kaifeng can be set in the form of a ring at complete cycle With notch 22, and Kaifeng notch 22 is made to have the innermost layer side (flange part running through composite membrane 21 upper surface side) resin molding 202a and arrive outside it on (downside) resin molding 202b The degree of depth in portion.Constitute the resin molding 202a of the innermost layer side of flange part 21 upper surface of container 2 And the thermal welding between the heat sealability resin film layer 302 of lid 3 lower surface, is using than Kaifeng Notch 22 is carried out by the part outward of footpath.Under this form, the handgrip of lid 3 Portion 31 upwards one draws, and (is the poly-second of upside in figure 3 each other by the resin film layer of composite membrane The resin molding 202b layers such as the acrylic resin of the resin molding 202a layers such as olefine resin and downside) stripping From to Kaifeng with the position of notch 22, just lid 3 can be broken a seal.It is to say, at Fig. 3 Package body 1 in the case of, when lid 3 is broken a seal, it is not necessary to make the convex of composition container 2 The resin molding 202a of the innermost layer side of edge 21 upper surface ruptures, so by less power just Can easily break a seal.

The thickness of heat sealability resin film layer 202, preferably in 100 μm～500 μm, further Preferably in 200 μm～400 μm.The thickness of this heat sealability resin film layer 202, preferably at gold Belong to more than the thickness of layers of foil 201.The top cutting burr 201a thus can be avoided at flange part The upper surface side of 21 highlights.

It addition, constituted heat sealability resin film layer with Fig. 2, composite membrane as shown in Figure 3 In the case of 202, preferably make the thickness of the resin molding 202b of metal foil layer side in composite membrane More than the thickness of metal foil layer 201.Cutting burr 201a so can be made along this resin molding 202b end face elongation, cutting burr 201a top become or along or scratch into resin The end face of film layer 202b.Therefore, the top of cutting burr 201a is difficult to from flange part 21 End face is outstanding.Additionally, it is preferred that make the thickness of above-mentioned resin molding 202b for than cutting burr 201a The big size of height, the top of cutting burr 201a so can be made more to be difficult to from flange part The end face of 21 is outstanding.Such as, with by the polyethylene resin film 202a of innermost layer side and gold The composite membrane of the polypropylene resin film 202b stratification belonging to layers of foil side constitutes heat sealability resin In the case of film layer 202, the thickness making polyethylene resin film 202a is 3 μm～80 μm, makes The thickness of polypropylene resin film 202b is 150 μm～300 μm.

As the heat-resistant resin film layer 203 of the outer surface constituting container 2, right with such as gathering PET resin molding, polybutylene terephthalate (PBT) resin molding, polyamide Resin molding, PEN resin molding, PBN resin molding, The film that the versatility such as polypropylene resin film, polyethylene resin film is high, or their composite wood Material.

The thickness of heat-resistant resin film layer 203, preferably in 3 μm～300 μm, further preferably In 20 μm～100 μm.Make above-mentioned thickness more than 3 μm, it is possible to prevent the corrosion of metal forming.

Although diagram is omitted, but metal foil layer 201 and heat sealability resin film layer 202 Joint and the joint of metal foil layer 201 and thermal insulation resin film layer 203, respectively by Carry out in adhesive phase.The polyester-urethane resin system bonding of adhesive phase two-solution curing type Agent, or with polyether-polyurethane resin system binding agent.

Additionally, the composition of composite sheet 20 is not limited to above-mentioned composition, as long as at metal The composition of resin film layer it is laminated with, so that it may as practical new according to this at least one side of layers of foil The material of container that type makes and use.

The processing carried out in order to composite sheet 20 is made cup-like containers 2 shape, utilizes punching Molded carry out.The punch forming of composite sheet 20, by deep drawing molding, is drawn into The cold formings such as type are carried out.

Peripheral part to the flange part 21 of stamping forming container 2 carries out the cutting edge of necessity, To make its flange part 21 become given size.

Fig. 4 is to represent the edge-cutting device 5 for the flange part 21 of container 2 carries out cutting edge Figure.

This edge-cutting device 5 is the device being located on the production line manufacturing container, by fixing shape Lower mold 6 and the upper mold 7 by the movable shape driven relative to lower mold 6 ground advance and retreat are constituted.

Lower mold 6 is the structure of general vertical tubular, and on end face, placing is placed in up and down thereon The flange part 21 of the container 2 of topsy turvydom.The external diameter of lower mold 6 be formed as with cutting edge after convex The external diameter of edge 21 is consistent, and the edge, periphery of its upper surface is formed as lower sword 61.In cutting edge Under front state, the peripheral part of flange part 21 leans out from the upper surface of lower mold 6 (with reference to figure 4(a)).In the inside of lower mold 6 can being provided with in the way of being freely lifted in cutting edge when For keeping the holding component 8 of container 2.The top keeping component 8 has can be with container 2 The cone shape of fit form near the opening of inner surface.It addition, at the circle keeping component 8 Suction socket (diagram is omitted) is offered, by this suction socket to container 2 inner surface on side face Carry out evacuation, can carry out more reliably keeping the component 8 holding to container 2.

Upper mold 7 is the structure substantially having bottom tube-like in lower opening, the inner peripheral of its lower surface Be formed as upper sword 71.The internal diameter of upper mold 7 is set as making lower sword 61 and upper sword 71 aptly Between produce the size in desired gap.Generally to constitute the composite sheet 20 of container 2 On the basis of the 5% of thickness, gap is set in the scope of 2%～10%.

The flange part for pinning container 2 during in cutting edge from above it is provided with in the inside of upper mold 7 21 pin component 9.Pinning component 9 is to have bottom tube-like thing in lower opening, is arranged on Run through the lower end of the elevating lever 10 of the upper wall portions of upper mold 7.Elevating lever 10 is not shown by figure The spring element gone out exerts a force downwards, before cutting edge, pins the bottom of component 9 It is in the position slightly emerged from the lower surface of upper mold 7.

In the case of the cutting edge of flange part 21 carrying out container 2 with above-mentioned edge-cutting device 5, First, as shown in Fig. 4 (a), the container 2 after turning upside down is arranged on lower mold 6, Flange part 21 by container 2 is put in the upper surface of lower mold 6, and makes be below to keep out of the way The holding component 8 of position rises, and coordinates, then pass through near the opening of container 2 inner surface Suction socket carries out suction and keeps container 2 inner surface.

Then, when utilizing the oil gear etc. not shown in figure, drive and be in being retracted into of top The upper mold 7 of position and when making it advance downwards, first, the flange part 21 of container 2 is pressed The bottom living component 9 is pinned from top, when making upper mold 7 move downwards further, from The peripheral part of the flange part 21 that the upper surface of lower mold 6 leans out is by upper sword 71 He of upper mold 7 Lower sword 61 hand hay cutter of lower mold 6 is disconnected, carries out cutting edge (with reference to Fig. 4 (b)).

Cutting edge is once completing, and upper mold 7 is i.e. moved to the back-into position of top, and keeps Component 8 is moved to the retreating position of lower section, and container 2 is sent to the downstream of production line.

After completing above-mentioned cutting edge, the making of container 2 has i.e. been accused, and can be in shape The cutting burr 201a of metal forming is produced sometimes on flange part 21 end face of the container 2 of state.

In the container 2 of present embodiment, by the circumference of flange part 21 to container 2 Open side hand hay cutter break to carry out the cutting edge of flange part 21, result is, as shown in Figure 2 and Figure 3, Container 2 all it is directed towards on the top of all cutting burr 201a of the end face generation of flange part 21 Open side.

As shown in Figures 2 and 3, the composite sheet 30 of lid 3 is constituted by such as metal foil layer 301, heat sealability resin film layer 302 and the layer of the inner surface of metal foil layer 301 it are layered in The outside resin film layer 303 of the outer surface being stacked in metal foil layer 301 is constituted.

Metal foil layer 301 is to confer to the lid 3 part with characteristics such as barriers, can be by such as Aluminium foil, stainless steel foil, Copper Foil, nickel foil etc. are constituted, but aluminium foil ratio conveniently uses.

Use in the case of aluminium foil, in pure aluminum foil, alloy foil which kind of can, it addition, Soft, hard, but such as according to the warp of A8021 of JIS H4160 criteria classification Soft material (O material) ratio after annealing conveniently uses.

The heat sealability resin film layer 302 constituting lid 3 innermost layer is to confer to lid 3 with heat Welding (heat-sealing) property, plays protection metal forming 301 simultaneously and is not corroded shadow by content (C) The part of the effect rung.

Heat sealability resin film layer 302 is formed by such as easily openable resin molding.As easily opening Envelope property resin molding, can use thickness to be the polypropylene resin film about 10 μm～200 μm, gather The versatility films such as vinyl film, or their composite membrane, it is considered to heat sealability, sealing, The most preferably making thickness is about 20 μm～100 μm.

Heat sealability resin film layer 302 can add the coloring pigments such as titanium oxide, anti-oxidation The additives such as agent, slipping agent, antistatic agent, stabilizer, calcium carbonate, potter's clay, Muscovitum, The filleies such as silicon dioxide, eliminating smell agent.

In order to have the keeping quality to content, it is also possible to give heat sealability resin film layer 302 again Arrange by the iron powder as oxygen uptake components matching and the oxygen uptake of the mixture of metal halide auxiliary agent The oxygen uptake layer that resin combination is constituted.

Constitute lid 3 outermost outside resin film layer 303, be to play protection metal forming The surface of layer 301, the part of the protection such function of printing surface.

As the constituent material of outside resin film layer 303, can enumerate such as polyester resin film, Polyamide resin etc..As above-mentioned film, with stretched film ratio conveniently.Wherein, for resistance to Hot and the viewpoint of intensity, preferably biaxially stretched polyester resin molding, Biaxially oriented polyamide tree Adipose membrane, or the multicoat membrane containing the two, it is also possible to biaxially stretched polyester resin molding with double The multicoat membrane of axle oriented polyamide resin film laminating.Kind for polyamide resin It is not particularly limited, such as nylon 6 resin film, nylon 66 resin film, nylon can be enumerated MXD resin molding etc..It addition, as biaxially stretched polyester resin molding, twin shaft can be enumerated and draws Stretch polybutylene terephthalate (PBT) (PBT) resin molding, biaxial stretch-formed poly terephthalic acid second Diol ester (PET) resin molding etc..In the case of by these film stackings, such as, utilization is dry Formula layered manner is carried out by binding agent.

Although diagram is omitted, but the connecing of metal foil layer 301 and heat sealability resin film layer 302 Close, and, metal foil layer 301 and the joint of outside resin film layer 303, by means respectively of Adhesive phase is carried out.

These adhesive phases can be glued by such as polyurethane resin system binding agent, acrylic resin Mixture, epoxy resin binding agent, vistanex system binding agent, elastic system binding agent, Fluorine system binding agents etc. are formed.Wherein, be preferably used containing by as host polyester resin with The two-solution curing type polyester-polyurethane made as the polyfunctional isocyanate compound of firming agent Resin or the binding agent of polyether-polyurethane resin.

In addition it is also possible to replace above-mentioned outside resin film layer 303, face coat is utilized to form lid The outermost layer of son 3.Face coat can by by such as epoxy resin, nitrocotton system resin, The coating resins such as tripolycyanamide epoxy resin, vinyl chloride vinyl acetate copolymer resin are molten Solve or be distributed to the Liniment made in solvent, being coated on the surface of metal forming do Dry and formed.

Method for lid 3 is heat fused on the flange part 21 of container 2 limits the most especially Fixed, such as, can carry out by the following method: make the circumference of lid 3 lower surface coincide with Flange part 21 upper surface of container 2, by being heated to set point of temperature (such as about 180 DEG C) Hot plate, to above-mentioned intersection, limit applies the authorized pressure limit heating stipulated time.

As shown in Figures 2 and 3, by the circumference of lid 3 is heat fused to container 2 On flange part 21 upper surface, the top of the cutting burr 201a that the end face at flange part 21 produces End is covered with by lid 3.Therefore, consumer, will not being broken a seal by lid 3 when Make because of the cutting burr 201a of the end face of flange part 21 finger etc. feel awkward, unhappy or Person's pain, it is possible to break a seal giocoso.

Further, under the form shown in Fig. 2 and Fig. 3, at the circumference of lid 2 lower surface The pitch body 4 of the shape that hangs down it is formed with because of thermal welding.Pitch body 4 is to constitute container The heat sealability resin film layer 202 of flange part 21 upper surface of 2, say in more detail the most a bit, The resin molding 202a such as the polyethylene resin film of innermost layer side in this layer 202, with composition The heat sealability resin film layers 302 such as the polyethylene resin film of the inner surface of lid 3 carry out hot melt Flowing when connecing and the part that formed, 2 layer 202a, 302 become a block.It addition, resin Aggregation 4 has such height: its top arrives identical with the top of cutting burr 201a Or the horizontal level below its cutting burr 201a top.Due to this pitch body 4 Existing, the finger of consumer etc. becomes difficulty with the contacting of top of cutting burr 201a.Cause This, more reliably avoid consumer Kaifeng time because cutting burr 201a and feel awkward, Unhappy or the situation of pain.

Fig. 5 is the figure of the package body 100 representing comparative example, and this package body 100 is except convex Contrary towards vessel port side of the top of the cutting burr 201b that the end face of edge 21 produces Side, i.e. towards beyond this point of downside, all identical with the package body 1 of above-mentioned embodiment.

The cutting burr 201b of package body 100 of diagram, is by such as convex by container 2 The circumference of edge 21 cuts up with a hay cutter disconnected towards the opposition side of container 2 open side, carries out flange part 21 Cutting edge and formed, come up from the end face of flange part 21.

Therefore, in the package body 100 of comparative example, the top of cutting burr 201b will not become For the state covered by lid 3.It addition, the top of cutting burr 201b is in and gathers than resin The top of collective 4 horizontal level on the lower.So, use the feelings of this package body 100 Under condition, consumer Kaifeng time may because cutting burr 201b and feel awkward, unhappy or Person's pain.

Additionally, in the above-described embodiment, enumerated composite sheet is shaped to cup-shaped with After, the container formed by carrying out the cutting edge of flange part and the package body employing this container Example, in advance composite sheet being cut into given size and shape, then become Type, i.e. utilizes the container of the so-called manufacture of processing method without cutting edge and employs the packaging of this container Body, also can be suitable for this utility model.

If the latter, by by composite sheet towards the heat sealability constituting inner surface of container Resin film layer side is cut, it is possible to make the top opening towards the container after molding of cutting burr Side, it is possible to obtain the effect as above-mentioned embodiment.

Industrial applicability

This utility model can be as carrying out contents such as the food of the long-term preservation of needs The container of packaging and by this container and lid by seal-packed for content package body aptly Use.

Claims

1. a container, is being laminated with answering of resin film layer at least one side of metal foil layer Closing sheet forming is that cup-shaped is constituted and opening periphery has the container of flange part, wherein, convex The top of the cutting burr that the end face of edge produces is towards the open side of container.

Container the most according to claim 1, wherein, composite sheet has and is layered in metal The resin film layer of the inner surface of layers of foil, the thickness of this resin film layer is more than or equal to the thickness of metal foil layer Degree.

Container the most according to claim 2, wherein, is layered in the inner surface of metal foil layer The composite membrane of resin molding of resin film layer more than 2 by stacking constitute, gold in composite membrane The thickness of the resin molding belonging to layers of foil side is more than or equal to the thickness of metal foil layer.

Container the most according to claim 3, wherein, the metal foil layer side in composite membrane The thickness of resin molding is more than the height of cutting burr.

Container the most according to claim 3, wherein, the upper surface of flange part is formed with tool The resin molding of the innermost layer side running through composite membrane is had to arrive more outer than the resin molding of la m The Kaifeng notch of the degree of depth on resin molding top, side.

Container the most according to claim 3, wherein, composite membrane has and is positioned at innermost layer side Polyethylene resin film and be layered in the polypropylene resin film outside this polyethylene resin film.

Container the most according to claim 1, wherein, metal foil layer is made up of aluminium foil.

8. a package body, is so that the cup-like containers opening being filled with content is covered by lid The flange part thermal welding of mode and this container and the package body that constitutes, wherein, container is by right Require the container composition described in any one in 1～7.

Package body the most according to claim 8, wherein, lower lid surface circumference because of Thermal welding and be formed with the pitch body of the shape that hangs down, pitch body have its top arrive with The horizontal level below burr top is cut in horizontal level or arrival that cutting burr top is identical Such height.