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CN109927367A - The manufacturing method of container molding lamilate, container molding and package body and container molding and package body - Google Patents

The manufacturing method of container molding lamilate, container molding and package body and container molding and package body Download PDF

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Publication number
CN109927367A
CN109927367A CN201811516019.6A CN201811516019A CN109927367A CN 109927367 A CN109927367 A CN 109927367A CN 201811516019 A CN201811516019 A CN 201811516019A CN 109927367 A CN109927367 A CN 109927367A
Authority
CN
China
Prior art keywords
layer
container molding
film layer
resin film
outside
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811516019.6A
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Chinese (zh)
Inventor
苗村正
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Resonac Packaging Corp
Original Assignee
Showa Denko Packaging Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2018212431A external-priority patent/JP7250482B2/en
Application filed by Showa Denko Packaging Co Ltd filed Critical Showa Denko Packaging Co Ltd
Publication of CN109927367A publication Critical patent/CN109927367A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/085Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyolefins
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00Layered products having a non-planar shape
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/20Layered products comprising a layer of metal comprising aluminium or copper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/06Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/32Layered products comprising a layer of synthetic resin comprising polyolefins
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00Ancillary operations in connection with laminating processes
    • B32B38/0036Heat treatment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00Ancillary operations in connection with laminating processes
    • B32B38/12Deep-drawing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/40Properties of the layers or laminate having particular optical properties
    • B32B2307/402Coloured
    • B32B2307/4026Coloured within the layer by addition of a colorant, e.g. pigments, dyes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/40Properties of the layers or laminate having particular optical properties
    • B32B2307/406Bright, glossy, shiny surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/75Printability
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00Containers; Receptacles
    • B32B2439/70Food packaging

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wrappers (AREA)
  • Laminated Bodies (AREA)
  • Packages (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)

Abstract

The present invention relates to the manufacturing methods of container molding lamilate, container molding and package body and container molding and package body.Project of the invention is, inexpensively provides the container with the outer surface of the good matt style of appearance, and the container is to will be provided with metal foil layer and the lamilate of outside resin film layer is molded with.Solution of the invention are as follows: the outside resin film layer (12) of single-layer or multi-layer that container molding lamilate (10) has metal foil layer (11) and is laminated in two faces of metal foil layer on the face for becoming outside of containers.Outermost film layer is formed by making resin combination as main component with polyolefin resin and olefin-based elastomer in the outside resin film layer of single layer or the outside resin film layer of multilayer.The glossiness of the outer surface of outside resin layer is 0.5~30%.

Description

It container molding lamilate, container molding and package body and container molding and packs The manufacturing method of body
Technical field
The present invention relates to the lamilate being used as being sealed the material of the container molding of packaging to food etc., will be described The container molding and package body made of lid is applied to the container molding filled with content that lamilate is molded with, More specifically, it is related to container molding lamilate, container molding and the package body with the outer surface of matt style.In addition, The present invention relates to the manufacturing methods of the container molding of the outer surface with matt style and package body.
Background technique
As for by such as water red bean jelly, jelly, diatery supplement, nursing food etc. can pack in a manner of long-term preservation Container, it is known that lamilate is shaped to container molding made of cup-shaped, the lamilate has by the metal foil of the formation such as aluminium foil The outside resin film layer of layer and the single-layer or multi-layer being laminated in two faces of metal foil layer on the face for becoming the outside of container (referring to following patent documents 1 etc.).
Herein, it in packaging field, is used with matt style (delustring) outside sometimes for feeling of high class is assigned to appearance The container on surface.
For example, disclosing is had using the polypropylene resin film Jing Guo Embossing processing to make in following patent documents 2 Stationery file of the outer surface of matt style etc..
In addition, disclosing in following patent documents 3 and being formed with the hard conating with matt style outer surface in outermost layer Hardcoat film for molding.
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 6-345123 bulletin
Patent document 2: Japanese Unexamined Patent Publication 5-320376 bulletin
Patent document 3: Japanese Unexamined Patent Publication 2011-148301 bulletin
Summary of the invention
Problems to be solved by the invention
However, outside resin film layer as above patent document 2 is shaped to by the lamilate that Embossing processing film is constituted When cup-shaped, at the time of molding, Embossing processing film is stretched to generate color spot on the outer surface of matt style, and appearance may be by Damage.In addition, there is cost raising when using Embossing processing film.
In addition, outside resin film layer as above patent document 3 is made of the film of the coating with matt style In the case that lamilate is shaped to cup-shaped, there is a problem of cracking on coating or coating is peeling-off.In addition, being formed In the case where the coating of matt style, the problem of raising there is also cost.
The present invention is completed in view of above-mentioned project, it is intended that inexpensively providing has the good Asia of appearance The container of the outer surface of light style, the container are to will be provided with metal foil layer and the lamilate of outside resin film layer is molded with 's.
Means for solving the problems
In order to reach above-mentioned purpose, the present invention includes following manner.
1) container molding lamilate, having metal foil layer and being laminated in two faces of metal foil layer becomes container The outside resin film layer of single-layer or multi-layer on the face in outside, wherein
In the outside resin film layer of single layer or the outside resin film layer of multilayer outermost film layer by with polyolefin resin and Olefin-based elastomer is made resin combination as main component and is formed,
The glossiness of the outer surface of outside resin film layer is 0.5~30%.
2) above-mentioned container molding lamilate 1), wherein pass through the whole face between metal foil layer and outside resin film layer Or be formed locally in printing layer or outward resin film layer and add coloring components, thus the appearance of resin film layer on the outside Display or decoration as defined in being showed on face.
3) container molding is made of above-mentioned container molding 1) or 2) is shaped to cup-shaped with lamilate, it is described at Type container has flange in opening periphery.
4) package body is on the flange of the above-mentioned container molding 3) filled with content to cover container molding The mode of opening engages made of lid.
5) manufacturing method of container molding is the method for manufacturing above-mentioned container molding 3), which comprises
The process that above-mentioned container molding 1) or 2) is shaped to cup-shaped with lamilate;With
In the outside resin film layer of single layer or the outside resin film layer of multilayer more than the softening point of outermost resin The process that temperature heats the container molding obtained by above-mentioned operation.
6) manufacturing method of package body, the method to manufacture above-mentioned package body 4), which comprises
It is connect in a manner of the opening for covering container molding on the flange of the above-mentioned container molding 3) filled with content The process of closing lid body;With
In the outside resin film layer of single layer or the outside resin film layer of multilayer more than the softening point of outermost resin The process that temperature heats the package body obtained by above-mentioned operation.
7) manufacturing method of above-mentioned package body 6), wherein implement to add package body by cooking disinfection processing The process of heat treatment.
Invention effect
In above-mentioned container molding lamilate 1), in the outside resin film layer of single layer or the outside resin film layer of multilayer Outermost film layer is formed by making resin combination as main component with polyolefin resin and olefin-based elastomer, and is made outer The glossiness of the outer surface of side resin film layer is 0.5~30%, therefore, for the container molding that is molded with the lamilate Say that its outer surface becomes matt style.It, will not be such as the appearance of outside resin film layer also, in the case where above-mentioned lamilate 1) Lamilate that face is made of Embossing processing film is stretched like that, at the time of molding to generate color spot in outer surface, in addition, will not be as The lamilate that the outer surface of outside resin film layer is made of the film of the coating with matt style is such, generates and splits on coating Line or coating are peeling-off, will not Expenses Cost.
Therefore, it according to above-mentioned container molding lamilate 1), can inexpensively obtain with the good matt wind of appearance The container molding of the outer surface of lattice.
Herein, " glossiness " according to JIS Z8741-1997, ((incident angle is for mirror surface luster-measuring method, method 3 60 degree)) measurement.
According to above-mentioned container molding lamilate 2), pass through the whole face between metal foil layer and outside resin film layer or office It forms to portion printing layer or in resin film layer adds coloring components outward, thus on the outside on the outer surface of resin film layer Display or decoration as defined in showing, therefore, the appearance for the container molding which is molded with is more excellent.
According to above-mentioned container molding 3), container molding has the outer surface of the good matt style of appearance therefore can Assign feeling of high class.
It can be made using the container of the outer surface with the good matt style of appearance according to above-mentioned package body 4) With feeling of high class.
According to the manufacturing method of above-mentioned container molding 5), following such effect can be obtained.
That is, there are following situations when above-mentioned container molding 1) or 2) is shaped to cup-shaped with lamilate: obtain at A part of the outer surface of type container, specifically, the angle part on the boundary of the bottom wall of for example described outer surface and peripheral wall occur The display of gonorrhoea, the metallic luster, printing layer on the surface of metal foil layer is hidden and no longer as it can be seen that appearance damage.As its original Cause, it is believed that by forming above-mentioned lamilate, thus in the outside resin film layer of single layer or the outside resin film layer of multilayer In in outermost film layer, polyolefin resin (such as block polypropylene resin) matrix and olefin-based elastomer (such as by Ethylene-propylene copolymer formed elastomer) interface generate hole (void) (gap), due to the folding of resin portion and hole It penetrates the difference of rate and a part of the outer surface of container molding (is especially become in the outer surface of container molding by molding bring The big angle part of the degree of shape) gonorrhoea is presented.
Therefore, as described above, the outermost tree in the outside resin film layer of single layer or the outside resin film layer of multilayer The temperature more than softening point of rouge heats container molding, as a result, it disappears in the hole that the inside of the layer generates, No longer there is gonorrhoea.
Therefore, it using the manufacturing method of above-mentioned container molding 5), can reliably obtain good with overall appearance The container molding of the outer surface of matt style.
Herein, " softening point " is " Vicat softening point " measured according to JIS-K7206:2016 (determination condition A50).
According to the manufacturing method of above-mentioned package body 6), even if a part in the outer surface of container molding generates gonorrhoea In the case of, by the outside resin film layer of single layer or the outside resin film layer of multilayer more than the softening point of outermost resin Temperature package body is heated, still be able to that gonorrhoea is made to disappear, therefore, can reliably obtain have have it is whole The package body of the container molding of the outer surface of the good matt style of appearance.
According to the manufacturing method of above-mentioned package body 7), implement to carry out at heating package body by cooking disinfection processing Therefore the process of reason can make the gonorrhoea generated on the outer surface of container molding disappear in the case where not increasing operation quantity It loses, is efficient.
Detailed description of the invention
[Fig. 1] is that the partial enlargement of the layer structure for the container molding lamilate for indicating that embodiments of the present invention are related to cuts open View.
[Fig. 2] is the vertical cross section that the manufacturing method for the package body that embodiments of the present invention are related to is shown by process sequence Figure.
[Fig. 3] is the perspective view of the package body manufactured using this method.
Description of symbols
(2): container molding
(23): flange
(3): lid
(4): package body
(5): cooking disinfection processing device
(10): container molding lamilate
(11): metal foil layer
(12): outside resin film layer
(12a): the outer surface of outside resin film layer
(15): printing layer
(C): content
Specific embodiment
Hereinafter, embodiments of the present invention will be described with reference to FIG. 1 to FIG. 3.
Fig. 1 shows the layer structure for the container molding lamilate that embodiments of the present invention are related to.The lamilate of diagram (10) having metal foil layer (11) and being laminated in two faces of metal foil layer (11) becomes outer on the face on the outside of container (2) Side resin film layer (12).In addition, the lamilate (10) of the embodiment have in two faces for be laminated at metal foil layer (11) at For the inside resin layer (13) on the face on the inside of container (2).
As the metal foil for constituting metal foil layer (11), aluminium foil, iron foil, stainless steel foil, copper foil etc. can be used, it is preferable to use Aluminium foil.In the case where aluminium foil, can be pure aluminum foil, any in alloy foil, furthermore it is possible to be it is any in soft, hard, For example, the content of iron be 0.3~1.5 mass %, according to JIS H4160 classification A8000 system (especially A8079H, A8021H the mouldability of the soft material (O material) by annealing) is excellent, therefore, can be suitble to use.
It can come to carry out the base treatments such as chemical conversion treatment to the single side of metal foil layer (11) or two faces as needed.Tool For body, for example, by be coated on the surface for the metal foil for carrying out ungrease treatment it is following 1)~3) in any aqueous solution After be dried, implement chemical conversion treatment, formed envelope:
1) aqueous solution of following mixtures, the mixture contain:
Phosphoric acid;
Chromic acid;With
At least one kind of compound in the group being made of the metal salt of fluoride and the non-metal salt of fluoride,
2) aqueous solution of following mixtures, the mixture contain:
Phosphoric acid;
Selected from what is be made of acrylic resin, chitosan (chitosan) derivatives resin and phenolic aldehyde system resin At least one kind of resin in group;With
Selected from least one of the group being made of chromic acid and chromium (III) salt compound,
3) aqueous solution of following mixtures, the mixture contain:
Phosphoric acid;
In the group being made of acrylic resin, chitosan derivative resin and phenolic aldehyde system resin at least 1 kind of resin;
Selected from least one of the group being made of chromic acid and chromium (III) salt compound;With
Selected from least one of the group being made of the metal salt of fluoride and the non-metal salt of fluoride compound.
The chromium adhesion amount (every one side) of the envelope on metal foil layer (11) surface is formed in by above-mentioned chemical conversion treatment It is preferably set to 0.1mg/m2~50mg/m2, particularly preferably it is set as 2mg/m2~20mg/m2
The thickness of metal foil layer (11) is preferably 30~200 μm, and more preferably 50~150 μm.By for above range, energy Access sufficient barrier property and molding processibility.
Outside resin film layer (12) is designed to single-layer or multi-layer (single layer is shown as in Fig. 1).
Constitute layer, i.e. the outside resin film layer (12) of single layer or the outside resin of multilayer of the outer surface of container molding (2) Outermost film layer is by making resin combination shape as main component with polyolefin resin and olefin-based elastomer in film layer (12) At.Also, the glossiness (gloss value) for making the outer surface (12a) for the outside resin film layer (12) being made of above-mentioned layer is 0.5 ~30%.In above-mentioned resin combination, as polyolefin resin, block polypropylene resin (PP-B), homo-polypropylene can be enumerated Resin (PP-H), random polypropylene resin (PP-R), high-density polyethylene resin (HDPE), straight-chain ldpe resin (LLDPE), ldpe resin (LDPE) etc..In addition, as olefin-based elastomer, can enumerate ethylene-propylene copolymer, Ethylene-butene copolymer, ethylene-propylene-butene-1 copolymer etc..For the monomer other than ethylene, content is 5~40 matter It measures % and fusing point is lower than 90 DEG C.In addition, the polyolefin component that above-mentioned layer is 135 DEG C or more containing fusing point.In addition, in order to The glossiness of the outer surface of container molding (2) is adjusted, organic and inorganic particle can be added into above-mentioned layer as needed and fill out Fill agent.
In the case that outside resin film layer (12) is multilayer, the layer other than outermost layer is by acrylic resin (PP), polyethylene The polyamides (PA) such as the polyolefin resins such as resin (PE), nylon 6 (PA6), nylon66 fiber (PA66), nylon MXD gather to benzene two Formic acid glycol ester resin (PET), mutual-phenenyl two acid bromide two alcohol ester's resin (PBT), polyethylene naphthalate resin (PEN) Equal polyester resin (PEs) etc. is formed.
The thickness of outside resin film layer (12) is preferably 5~100 μm, and more preferably 15~80 μm.
The container molding (2) of appropriate depth in order to obtain can add lubricant in resin film layer (12) outward.Separately Outside, addition lubricant can also be replaced or on the basis of adding lubricant further at the time of molding on the surface of lamilate (10) The lubricating oil such as upper coating silicone oil, rapeseed oil.
Metal foil layer (11) and outside resin film layer (12) it is laminated can via adhesive phase (14), utilize dry lamination method It carries out.The polyester-urethane resin system adhesive of such as two-solution curing type, polyether-polyurethane tree can be used in adhesive phase (14) Rouge system adhesive.
By by entire surface or being formed locally printing in intaglio printing etc. the on the outside inner surface of resin film layer (12) Layer (15).Display or decoration as defined in being showed on the outer surface of container molding (2) using the printing layer (15).Printing layer (15) it is not particularly limited, the meaning for making it have feeling of high class from the outer surface (12a) of prominent matt style considers, preferably makes Background color is the dark colors such as black.
It should be noted that printing layer (15) can also be replaced and add pigment etc. in resin film layer (12) outward and be coloured to Point.
Inside resin layer (13) constitutes the inner surface (upper surface including flange part (23)) of container (2), and by for example having It is multiple made of having the versatilities films such as acrylic resin (PP) film, polyvinyl resin (PE) film of heat sealability or being bonded them Sheet material is closed to constitute.
The thickness of the film or composite sheet that constitute inside resin layer (13) is preferably 100~500 μm, more preferably 200~ 400μm。
The film or the laminated of composite sheet of metal foil layer (11) and composition inside resin layer (13) can be via adhesive phases (16) and using dry lamination method it carries out.The polyester-urethane resin system of such as two-solution curing type can be used in adhesive phase (16) Adhesive, polyether-polyurethane resin system adhesive.
In addition, inside resin layer (13) can also be replaced above-mentioned film or compound by the coating of epoxy resin, lac resin etc. Sheet material and formed.
Fig. 2 by process sequence show using the container molding and lid being molded with by above-mentioned lamilate and by food etc. The manufacturing method of package body made of content sealed package.
Firstly, above-mentioned lamilate (10) is cut into defined geomery, it is shaped to cup-shaped.Lamilate (10) molding is formed by deep drawing, rouses the cold formings such as convex molding to implement.So, it is possible to obtain as shown in Fig. 2 (a) at Type container (2).
Container molding (2) has bottom wall (21), the peripheral wall (22) erected from the periphery of bottom wall (21) and from peripheral wall (22) The flange (23) for the horizontal endless that upper edge extends to radial outside.
Herein, there are following situations: on the outer surface of container molding (2) after shaping, part of it, especially bottom wall (21) and gonorrhoea, the display of the surface color, printing layer (15) of metal foil layer (11) occur for the angle part on the boundary of peripheral wall (22) It is hidden and no longer visible.It is thought that due to by the way that lamilate (10) are formed, thus in the outside resin film layer of single layer (12) or in the outside resin film layer (12) of multilayer in outermost film layer, in matrix and the olefin-based elasticity of polyolefin resin The interface of body generates hole (gap), therefore, because the specific refractivity of resin portion and hole, and make container molding (2) Outer surface in the big angle part of the degree that is deformed by molding bring gonorrhoea is presented.
Then, as shown in Fig. 2 (b), the contents such as food (C) are filled in container molding (2), then by lid (3) peripheral part of lower surface is heat fused in the upper surface of the flange (23) of container molding (2).
Herein, lid (3) may be designed as having for example: by the metal foil layer of the formation such as aluminium foil;By acrylic resin (PP) Film, polyvinyl resin (PE) film etc. form and are laminated at the heat sealability resin film layer of the lower surface of metal foil layer;By polyester tree Rouge (PS) film, polyamide (PA) film etc. form and are laminated at the outside resin film layer of the upper surface of metal foil layer.In addition, In a part of the outer peripheral edge of lid (3), the one in a manner of more being protruded outward than the flange of container molding (2) (23) It is formed with Kaifeng corbel back slab (31) (referring to Fig. 3).
The means that lid (3) is heat fused in the flange (23) of container molding (2) are not particularly limited, it can be under It states method progress: being overlapped the lower surface peripheral part of lid (3) and the upper surface of flange (23), using being heated to predetermined temperature The hot plate of (such as 180 DEG C or so), withing the stipulated time while applying authorized pressure heats the intersection.
Then, package body obtained in above-mentioned operation (4) are imported in cooking disinfection device (5), is carried out at cooking disinfection Reason.The cooking disinfection processing process is doubled as simultaneously so as to disappear in the gonorrhoea that a part of the outer surface of container molding (2) generates For the purpose of heating treatment step.
The heating temperature of package body (4) in the process be lamilate (10) single layer outside resin film layer (12) or Temperature in the outside resin film layer (12) of multilayer more than the softening point of outermost resin.It is further preferred that heating temperature is Temperature of the softening point of the resin more than or lower than fusing point.Temperature more than softening point by making the heating temperature resin The strain of degree, the lamilate (10) caused by forming is mitigated, and hole is easy to be filled.In addition, by making heating temperature Lower than the temperature of the fusing point of the resin, the shape of container molding (2) is able to maintain after the heating.Specifically, being About 80 DEG C or more, preferably from about 100~180 DEG C.Heating time is 5 minutes~3 hours or so.
It should be noted that heating treatment step can of course be other than the heating treatment step using cooking disinfection processing Other processes, such as can also be implemented by the heat treatment using baking oven, impregnation in warm water etc..In boiling , can be in the process being made before package body (4) in the case where heat treatment other than sterilization processing, it can also be only to container molding (2) heated.
Fig. 3 indicates the package body (4) after cooking disinfection processing.In the outer surface of container molding (4), generated in angle part etc. Gonorrhoea disappear.It is thought that due to being sufficiently carried out heating to container molding (2) using cooking disinfection processing, thus by forming The strain of caused lamilate (10) is mitigated, and hole is filled.
In this way, package body (4) becomes the container molding (2) for having the outer surface with the good matt style of overall appearance Package body, can be that the person of needs brings feeling of high class.
Embodiment
Next, being illustrated to the embodiment of the present invention.But the present invention is not limited to embodiments below.
<embodiment 1>
As metal foil layer, prepare following aluminium foils: the aluminium foil is formed by the A8021H-O to classify according to JIS H4160 , and be be coated on both faces the chemical conversion treatment solution comprising polyacrylic acid, trivalent chromium compound, water and alcohol and in 180 DEG C are dried, so that chromium adhesion amount be made to become 10mg/m2Mode impose obtained from chemical conversion treatment, with a thickness of 120 μm of aluminium foil.As outside resin film layer, prepares the un-stretched polypropylene resin film (CPP) of the single layer with a thickness of 50 μm, make Black ink (DIC Graphics Corporation system, commodity are utilized in generally forming for its single side with intaglio press Name: the special ink of PANACEA CVL-SP 805) without decorative pattern printing layer.In addition, having prepared as inside resin layer with a thickness of 300 μm High-density polyethylene resin film (HDPE) and polypropylene resin film (PP) composite sheet (layer ratio: 50 μm/250 μm).
For above-mentioned un-stretched polypropylene resin film (CPP), use in block polypropylene resin (PP-B) with 10 matter Composition made of % addition ethylene-butene-1 copolymer rubber is measured as resin combination (softening point=97 DEG C).
Also, using the polyester-urethane resin system adhesive of two-solution curing type, by un-stretched polypropylene resin film (CPP) dry lamination also, uses the polyester-of two-solution curing type on the single side of aluminium foil in such a way that printing layer becomes inside Polyurethane resin system adhesive, by the composite sheet by polypropylene resin film side become inside in a manner of dry lamination in aluminium foil Another side on, cure 5 in the environment of 40 DEG C, thus make container molding lamilate.
Then, it is coated on two faces that above-mentioned container molding is cut into blank made of regulation shape with lamilate Then micro siloxanes uses and carries out deep-draw deep processing by the mold that formpiston and former form, thus production has flange Container (the Di Jingwei of round cup-shapedOpening diameter isHeight is 30mm, flange width 8mm).
It on the other hand, will be poly- to benzene with a thickness of 12 μm using the polyester-urethane resin system adhesive of two-solution curing type Naphthalate resin (PET) film as outside resin layer and dry lamination in the aluminium foil with a thickness of 20 μm (by according to JIS H4160 classification AlN30H-O formed) single side on, also, using two-solution curing type polyester-urethane resin system bond Agent, using with a thickness of 30 μm of straight-chain ldpe resin (LLDPE) film as heat sealability resin layer dry lamination In on the another side of aluminium foil, curing in the environment of 40 DEG C 5, lid lamilate is thus made.
Obtained lamilate is cut into required form and dimension according to flange, thus the subsidiary Kaifeng of production is with drawing The lid of plate.
Into above-mentioned container be added 70ml water, then by above-mentioned lid with straight-chain ldpe resin (LLDPE) mode that film surface is in contact is Chong Die with the lug upper surface of container, and it is (outer to will warm up 200 DEG C of circular hot plate Diameter isInternal diameter is) they are pressed on the plus-pressure of 150kgf coincidence face 3 seconds, thus carry out heat It seals (thermal welding).
In this way, obtaining the package body of embodiment 1.
<comparative example 1>
As the outside resin film layer of container molding lamilate, using by random polypropylene resin (PP-R) film, block With a thickness of 30 μm of 3-tier architecture made of acrylic resin (PP-B) film and random polypropylene resin (PP-R) film are successively laminated Un-stretched polypropylene resin film (CPP) make package body according to main points same as Example 1 in addition to this, as Comparative example 1.
For embodiment 1 and the package body of comparative example 1, glossiness analyzer (BYK-Gardner corporation micro- is utilized Tri-gross S) measurement container outer surface glossiness, as a result, be 6% in embodiment 1, be 100% in comparative example 1.
In addition, observing the appearance of the container molding of the package body of embodiment 1 and comparative example 1 by visual observation.In embodiment 1, Strong albefaction is observed at the angle part on the boundary of bottom wall and peripheral wall in the outer surface of container molding.On the other hand, compare In example 1, albefaction is not observed in the outer surface of container molding.
Then, using constant temperature constant humidity baking oven (ESPEC CORP. PL-1J type), in 100 DEG C of heating temperature by embodiment 1 Package body heat 60 minutes, then taken out from baking oven, by visual observation observe container molding outer surface, as a result, angle Partial albefaction slightly remains, but major part has disappeared.
In addition, using cooking disinfection processing device (day slope make made RCS-40RTGN), by the package body of embodiment 1 in 120 DEG C of heating temperature are heated 30 minutes, are then taken out from the device, observe the outer surface of container molding by visual observation, As a result, the albefaction of angle part has completely disappeared.
Industrial availability
The present invention can be suitable for for the purpose of being sealed packaging to food etc. and with the good matt style of appearance Outer surface container molding.

Claims (7)

1. container molding lamilate, having metal foil layer and being laminated in two faces of metal foil layer becomes outside of containers Face on single-layer or multi-layer outside resin film layer, wherein
Outermost film layer is by with polyolefin resin and alkene in the outside resin film layer of single layer or the outside resin film layer of multilayer Based elastomers are made resin combination as main component and are formed,
The glossiness of the outer surface of outside resin film layer is 0.5~30%.
2. container molding lamilate as described in claim 1, wherein by between metal foil layer and outside resin film layer It by entire surface or is formed locally in printing layer or outward resin film layer and adds coloring components, thus resin film layer on the outside Outer surface on show as defined in display or decoration.
3. container molding is the molding made of container molding described in claim 1 is shaped to cup-shaped with lamilate Container has flange in opening periphery.
4. package body is on the flange of the container molding of the claim 3 filled with content to cover container molding The mode of opening engages made of lid.
5. the manufacturing method of container molding is the method for container molding described in manufacturing claims 3, which comprises
The process that container molding described in claim 1 is shaped to cup-shaped with lamilate;With
Temperature in the outside resin film layer of single layer or the outside resin film layer of multilayer more than the softening point of outermost resin The process that the container molding obtained by above-mentioned operation is heated.
6. the manufacturing method of package body is the method for package body described in manufacturing claims 4, which comprises
On the flange of the container molding as claimed in claim 3 filled with content in a manner of the opening for covering container molding The process for engaging lid;With
Temperature in the outside resin film layer of single layer or the outside resin film layer of multilayer more than the softening point of outermost resin The process that the package body obtained by above-mentioned operation is heated.
7. the manufacturing method of package body as claimed in claim 6, wherein implemented by cooking disinfection processing to package body into The process of row heat treatment.
CN201811516019.6A 2017-12-15 2018-12-11 The manufacturing method of container molding lamilate, container molding and package body and container molding and package body Pending CN109927367A (en)

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