CN104321196B - Stack membrane - Google Patents

Stack membrane Download PDF

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Publication number
CN104321196B
CN104321196B CN201380026367.4A CN201380026367A CN104321196B CN 104321196 B CN104321196 B CN 104321196B CN 201380026367 A CN201380026367 A CN 201380026367A CN 104321196 B CN104321196 B CN 104321196B
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CN
China
Prior art keywords
hot sealing
stack membrane
sealing layer
thickness
layer
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Expired - Fee Related
Application number
CN201380026367.4A
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Chinese (zh)
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CN104321196A (en
Inventor
高桥靖典
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Sumitomo Bakelite Co Ltd
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Sumitomo Bakelite Co Ltd
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Publication of CN104321196A publication Critical patent/CN104321196A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered 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
    • B32B27/08—Layered 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/31—Heat sealable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/406—Bright, glossy, shiny surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/412—Transparent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B32B2307/734—Dimensional stability
    • B32B2307/736—Shrinkable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/70—Food packaging

Landscapes

  • Laminated Bodies (AREA)
  • Wrappers (AREA)

Abstract

The present invention provides a kind of crimpiness and the transparency, the stack membrane and ground of excellent gloss.The stack membrane has the stack membrane of superficial layer, intermediate layer and hot sealing layer for lamination successively, the stack membrane is characterised by, above-mentioned hot sealing layer includes the hot sealing layer (A) that straight-chain ldpe resin obtained from being copolymerized by the alhpa olefin for making ethene and carbon number is 6 is formed, the ground of the present invention is characterised by, is made up of above-mentioned stack membrane.

Description

Stack membrane
Technical field
The present invention relates to stack membrane.
The application based on May 22nd, 2012 Japanese publication Patent 2012-116135 CLAIM OF PRIORITYs, at this In quote its content.
Background technology
All the time, as the packing container for preserving the contents such as food and beverage, plastic packaging is used Body.The package body by collecting content ground and be sealed in the lid material of ground and form.The ground for example by vacuum forming or Stack membrane is configured to be suitable for the shape of content to use by the empty shaping of pressure.
As the requirement performance for film used in such package body, gas barrier property and pinhole resistance can be generally enumerated Deng.In addition, in recent years, in addition to the function that these are related to content protection, the performance being adapted with content is also required, is made Characteristic is required to be such, such as can be enumerated and can be recognized and distinguish the transparency of content, make the aesthetic property of commodity good Glossiness etc..
In addition, requiring one of characteristic as others, crimpiness can be enumerated.Crimpiness mentioned here is represented the bottom of Crimp which kind of degree arrived less caused by flange part when material and lid material seal in package body.If crimpiness is poor, i.e. in package body Flange part caused by curling it is big, then it is bad using that can be produced in the carrying of conveyer belt during fabrication, or needing wrapping When pasting the label of printing on dress body, it is possible to create the problem of can not normally pasting, therefore the laminated body that demand crimpiness is excellent.
It is such in order to solve the problems, such as, the such package body being made up of gas barrier property multilayer film of patent document 1 is have developed, But this does not solve crimpiness fundamentally, demand develops the package body for further meeting above-mentioned requirements characteristic.
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2010-234718 publications
The content of the invention
Invent problem to be solved
It is an object of the invention to provide a kind of crimpiness, the transparency and the excellent stack membrane of glossiness.
For solving the method for problem
Such purpose is realized by the present invention described in following (1)~(13).
(1) a kind of stack membrane, it is characterised in that lamination has superficial layer, intermediate layer and hot sealing layer, above-mentioned hot sealing layer bag successively Hot sealing layer (A) is included, the hot sealing layer (A) straight-chain low-density as obtained from being copolymerized the alhpa olefin for making ethene and carbon number is 6 Polyvinyl resin is formed.
(2) stack membrane described in (1) as described above, wherein, above-mentioned hot sealing layer also includes other hot sealing layer (B).
(3) stack membrane described in (2) as described above, wherein, above-mentioned hot sealing layer (B) is by the α that makes ethene and carbon number is 8 Straight-chain ldpe resin obtained from olefin-copolymerization is formed.
(4) stack membrane any one of (1)~(3) as described above, wherein, the thickness of above-mentioned hot sealing layer (A) for 3 μm with Upper less than 100 μm.
(5) stack membrane any one of (2)~(4) as described above, wherein, the thickness of above-mentioned hot sealing layer (B) for 3 μm with Upper less than 100 μm.
(6) stack membrane any one of (2)~(5) as described above, wherein, the thickness of above-mentioned hot sealing layer (A) is set to H (A) when, the thickness of above-mentioned hot sealing layer (B) is set to H (B), the ratio of the thickness represented by H (A)/H (A) for more than 1.0 and 5.0 with Under.
(7) stack membrane any one of (1)~(6) as described above, wherein, above-mentioned superficial layer is by acrylic resin structure Into.
(8) stack membrane any one of (1)~(7) as described above, wherein, above-mentioned intermediate layer is by polyamide structure Into.
(9) stack membrane any one of (1)~(8) as described above, wherein, above-mentioned superficial layer and above-mentioned intermediate layer it Between, and/or above-mentioned intermediate layer and above-mentioned hot sealing layer (A) between, there is the adhesive linkage that is made up of adhesive resin.
(10) stack membrane any one of (1)~(9) as described above, wherein, the thickness of above-mentioned stack membrane for 50 μm with Upper less than 250 μm.
(11) stack membrane any one of (1)~(10) as described above, wherein, the mist degree of above-mentioned stack membrane for 15% with Under, and surface brightness (gloss number (gloss value)) is more than 100.
(12) a kind of ground being made up of the stack membrane any one of above-mentioned (1)~(11).
(13) a kind of package body being made up of the ground described in above-mentioned (12).
Invention effect
In accordance with the invention it is possible to provide crimpiness and the transparency, the stack membrane of excellent gloss.
Brief description of the drawings
Fig. 1 is the sectional view of the stack membrane of the first embodiment of the present invention.
Fig. 2 is the sectional view of the stack membrane of second embodiment of the present invention.
Fig. 3 is the sectional view for the ground being made up of the stack membrane of the present invention.
Fig. 4 is the sectional view for the package body for possessing the stack membrane of the present invention.
Embodiment
According to preferred embodiment as shown below, the present invention will be described in detail.
＜ first embodiments ＞
First, the first embodiment of the stack membrane of the present invention is illustrated.
Fig. 1 is the sectional view of one of the stack membrane 100 for representing first embodiment.
As shown in figure 1, the stack membrane 100 of the first embodiment of the present invention is configured with superficial layer 1, the and of intermediate layer 2 successively Hot sealing layer 3.Hot sealing layer 3 includes the straight-chain low density polyethylene as obtained from being copolymerized the alhpa olefin for making ethene and carbon number is 6 The hot sealing layer (A) 31 and hot sealing layer (B) 32 that olefine resin is formed.
Below, each composition of stack membrane 100 is described in detail respectively.
＜ superficial layers ＞
As the material of superficial layer 1, for example, can enumerate polypropylene-based resin, polyester based resin, polyamide series resin and Ethylene-vinyl alcohol copolymer (hereinafter referred to as " EVOH resins ").Specifically, to packaged food, beverage or industrial In the case that package body after the contents such as part carries out heating sterilization processing, superficial layer 1 is exposed in hot water and high-temperature vapour. Therefore, the material as superficial layer 1 is preferably high using the high polypropylene-based resin of heat resistance, polyamide series resin or fusing point Polyester based resin, such as preferably using poly terephthalic acid hexylene glycol ester resin etc., among these, particularly hold from operation Easily, from the viewpoint of crimpiness after the monovalent cheap and boiling of raw material is good, more preferably using polypropylene-based resin.
As above-mentioned polypropylene-based resin, such as crystalline polypropylene system resin etc. can be used.Specifically, as knot Crystalline substance polypropylene-based resin, crystalline propylene's homopolymer, crystalline propylene-ethylene atactic copolymer, crystallinity third can be used Crystallinity block copolymer of alkene-alpha-olefin random copolymer, at least one party of ethene and alpha-olefin and propylene etc..As upper Alpha-olefin is stated, α-alkene of the carbon numbers 4~10 such as 1- butylene, 1- amylenes, 1- hexenes, 1- octenes, 1- decene can be used Hydrocarbon.Also, these alpha-olefins can also be copolymerized with arbitrary ratio.
The thickness of superficial layer 1 is not particularly limited, preferably less than more than 3 μm 100 μm, more preferably more than 5 μm 85 μm Hereinafter, more preferably less than more than 7 μm 70 μm.The thickness of superficial layer 1 within the above range when, can obtain less expensively The good stack membrane 100 of the outward appearance excellent to glossiness.
＜ intermediate layers ＞
As the material in intermediate layer 2, such as polyamide series resin, EVOH resins etc. can be enumerated, among these, preferably made Use polyamide series resin.By using polyamide series resin, the stack membrane 100 for having both gas barrier property and pinhole resistance can be obtained.
As above-mentioned polyamide, such as nylon-6 can be enumerated, 6, nylon-6,10, by hexamethylene diamine and to benzene two The nylon-6 T of formic acid formation, nylon-6 I, union diamines and the terephthalic acid (TPA) shape formed by hexamethylene diamine and M-phthalic acid Into nylon-9 T, formed by making methylpentamethylenediamine diamine and terephthalic acid (TPA) nylon-M5T, by caprolactam and lauryl lactan The nylon-6 of formation, 12 etc..Can also use above-mentioned resin with it is at least one kind of in nylon-6, nylon-11 and Nylon-12 Copolymer.These resins can be used alone or and use two or more.Alternatively, it is also possible to use by fat such as hexamethylene diamines The amorphism fragrance adoption that the polycondensation reaction of the dicarboxylic acids such as race's diamines and terephthalic acid (TPA), M-phthalic acid or derivatives thereof obtains Acid amides (amorphous nylon).
The thickness in intermediate layer 2 is not particularly limited, preferably less than more than 3 μm 100 μm, more preferably more than 5 μm 70 μm Hereinafter, more preferably less than more than 10 μm 50 μm.When intermediate layer 2 thickness within the above range when, resistance to pin can be obtained The excellent stack membrane 100 of permeability.
＜ hot sealing layers ＞
Hot sealing layer 3 includes hot sealing layer (A) 31 and other hot sealing layer (B) 32 and formed, and has the function of content resistance With the function of the seal compatibility of the subject material with sealing.So-called content resistance refers to that in content be medicine or containing big During food of gauging point etc., hot sealing layer will not be caused to lose and the seal compatibility of subject material due to the medicine or oil The property of function.
Hot sealing layer 3 includes hot sealing layer (A) 31.Also, hot sealing layer (A) 31 is by making the alhpa olefin that ethene and carbon number are 6 Straight-chain ldpe resin obtained from copolymerization is formed.Straight-chain low density polyethylene (LDPE) is used by hot sealing layer (A) 31 Resin, the excellent hot sealing layers 3 such as the transparency and sealing intensity can be obtained.Also, in above-mentioned straight-chain low density polyethylene (LDPE) tree Among fat, straight-chain low density polyethylene (LDPE) tree obtained from being copolymerized by using the alhpa olefin for making ethene and carbon number is 6 Fat, the excellent hot sealing layer 3 of resiliency and processability, the stack membrane excellent thereby, it is possible to obtain crimpiness can be obtained.
The thickness of hot sealing layer (A) 31 is not particularly limited, preferably less than more than 3 μm 100 μm, more preferably more than 5 μm 80 μ Below m, further preferred less than more than 7 μm 50 μm.The thickness of hot sealing layer (A) 31 within the above range when, can be less expensive Ground obtains the good stack membrane 1 of outward appearance.
Hot sealing layer 3 also includes other hot sealing layer (B) 32.As the material of hot sealing layer (B) 32, such as can enumerate low close Spend polyvinyl resin, straight-chain ldpe resin, Midst density ldpe resin, high-density polyethylene resin, Acrylic resin, vinyl-vinyl acetate copolymer, ethylene methyl methacrylate copolymer, ethylene-ethylacrylate Copolymer, ethylene-methyl acrylate copolymer, ethylene-ethylacrylate-copolymer-maleic anhydride, ethylene-acrylic acid are common Polymers, ethylene-methacrylic acid copolymer, ionomer etc..Among these, the curling after the transparency and sealing intensity, boiling Etc. excellent aspect, preferably straight-chain ldpe resin and vinyl-vinyl acetate copolymer.In addition, from buffering Property, from the viewpoint of processability and excellent strength, preferably using making ethene and carbon number be obtained for the alhpa olefin copolymerization of 8 Straight-chain ldpe resin.
Wherein, hot sealing layer 3 can not also include hot sealing layer (B) 32 as needed.
The thickness of hot sealing layer (B) 32 is not particularly limited, preferably less than more than 3 μm 100 μm, more preferably more than 5 μm Less than 80 μm, more preferably less than more than 7 μm 50 μm.The thickness of hot sealing layer (B) 32 within the above range when, can compare Inexpensively obtain the good stack membrane of outward appearance.
Hot sealing layer 3 preferably includes：Such as the straight-chain as obtained from making ethene and carbon number for the alhpa olefin copolymerization of 6 Ldpe resin form hot sealing layer (A) 31 and by make ethene and carbon number be 8 alhpa olefin be copolymerized obtain Straight-chain ldpe resin form hot sealing layer (B) 32.Hot sealing layer (A) 31 and hot sealing layer are included by hot sealing layer 3 (B) 32, the more excellent stack membrane of crimpiness can be obtained.
The thickness of hot sealing layer (A) 31 is set to H (A), when the thickness of hot sealing layer (B) 32 is set to H (B), H (A)/H (B) institute table The ratio of the thickness shown is preferably less than more than 1.0 5.0, and more preferably less than more than 1.4 4.2.It is represented by H (A)/H (B) Thickness ratio within the above range, the curling after boiling can be suppressed.
The thickness of hot sealing layer 3 is not particularly limited, preferably less than more than 3 μm 200 μm, more preferably more than 20 μm 70 μm Hereinafter, more preferably less than more than 30 μm 60 μm, most preferably less than more than 35 μm 55 μm.The thickness of hot sealing layer 3 is upper When in the range of stating, the good stack membrane of outward appearance can be obtained less expensively.
＜ second embodiments ＞
Then, the second embodiment of the stack membrane of the present invention is illustrated.
Fig. 2 is the sectional view of one of the stack membrane 100 for representing second embodiment.
As shown in Fig. 2 the stack membrane 100 of second embodiment of the present invention is configured with superficial layer 1, adhesive linkage (X) successively 41st, intermediate layer 2, adhesive linkage (Y) 42 and hot sealing layer 3.Hot sealing layer 3 includes：It is total to by the alhpa olefin for making ethene and carbon number is 6 The hot sealing layer (A) 31 and hot sealing layer (B) 32 that straight-chain ldpe resin obtained from poly- is formed.
Hereinafter, each composition of the stack membrane 100 in second embodiment is described in detail, to implement with above-mentioned first Illustrated centered on the difference of mode, for same item, the description thereof will be omitted.In addition, in fig. 2, for it is first real Apply mode identical and form part, mark and Fig. 1 identical symbols illustrated before.
Superficial layer 1, intermediate layer 2, hot sealing layer (A) 31 and hot sealing layer (B) 32 in present embodiment be able to use with The superficial layer 1 of first embodiment, intermediate layer 2, hot sealing layer (A) 31 and the same layers of hot sealing layer (B) 32.
＜ adhesive linkages ＞
Stack membrane 100 in present embodiment is for example as shown in Fig. 2 between superficial layer 1 and intermediate layer 2, and/or middle Between layer 2 and hot sealing layer (A) 31, there is the adhesive linkage 4 being made up of adhesive resin.Will be between superficial layer 1 and intermediate layer 2 Adhesive linkage be set to adhesive linkage (X) 41, the adhesive linkage between intermediate layer 2 and hot sealing layer (A) 3 be set to adhesive linkage (Y) 42 When, adhesive linkage (X) 41 and adhesive linkage (Y) 42 can improve the glued interlayer positioned at the two sides of adhesive linkage (here, being superficial layer Between between 1 and intermediate layer 2 or intermediate layer 2 and hot sealing layer (A) 3) adhesive strength, and improve the hardness of stack membrane 100 Intensity, pinhole resistance, flexibility or formability etc..
As adhesive linkage (X) 41 and the material of adhesive linkage (Y) 42, known adhesive resin can be used, such as be bonded Property polyolefin-based resins etc..Specifically, the material as adhesive linkage, such as ethylene-methyl acrylate-the third can be used Olefin(e) acid ethylene oxidic ester terpolymer or that unitary unrighted acid, binary are grafted with various polyolefin is unsaturated (maleic acid grafting vinyl-vinyl acetate copolymer, maleic acid connect material obtained from aliphatic acid or their acid anhydrides Cladodification ethene-alpha-olefin copolymer etc.) etc..As unitary unrighted acid, acrylic acid, methacrylic acid etc. can be used. As binary unrighted acid, maleic acid, fumaric acid, itaconic acid etc. can be used.Wherein, adhesive linkage (X) 41 and adhesive linkage (Y) 42 material both can be the same or different.
The thickness of adhesive linkage (X) 41 is not particularly limited, preferably less than more than 2 μm 50 μm, more preferably more than 3 μm 40 Below μm.The thickness of adhesive linkage (X) 41 within the above range when, can obtain imparting good adhesive strength less expensively Stack membrane 100.
The thickness of adhesive linkage (Y) 42 is not particularly limited, preferably less than more than 2 μm 70 μm, more preferably more than 3 μm 60 Below μm.The thickness of adhesive linkage (Y) 42 within the above range when, can obtain imparting good adhesive strength less expensively Stack membrane 100.
The manufacture method ＞ of ＜ stack membranes
Then, the manufacture method of the stack membrane 100 shown in Fig. 2 is illustrated.
Stack membrane 100 as described above for example by manufacturing the superficial layer 1 with adhesive linkage (X) 41, the and of intermediate layer 3 respectively Hot sealing layer 3 with adhesive linkage (Y) 42, they are engaged to obtain by lamination etc. afterwards.In addition, stack membrane 100 can also The superficial layer with adhesive linkage (X) 41 is made by using air-cooled type or water-cooled coextrusion blow moulding or coextrusion T modulus methods 1st, intermediate layer 3 and with adhesive linkage (Y) 42 hot sealing layer 3 and obtain.Particularly from the control of the thickness of stack membrane 100 and transparent Property from the viewpoint of, preferably by coextrusion T modulus methods film method, can be made by using appropriate feed block and die head Film.
The thickness of the stack membrane 100 obtained by above-mentioned manufacture method is not particularly limited, preferably more than 50 μm 250 μm Hereinafter, more preferably less than more than 90 μm 180 μm.Due to stack membrane 100 thickness within the above range, can obtain having suitable The stack membrane of the resistance to intensity and flexibility of degree.
The mist degree of above-mentioned stack membrane is not particularly limited, preferably less than 15%, more preferably less than 12%.Due to lamination The mist degree of film can clearly recognize content in the range of above-mentioned record.
Above-mentioned mist degree is calculated by following methods.
According to JIS K 7136, long 50mm × wide 50mm square sheet sample is cut out from piece central portion, uses day This electricity Shi Industrial Co., Ltd NDH-2000 is measured, using the value measured as mist degree.
The surface brightness (gloss number) of above-mentioned stack membrane is not particularly limited, preferably more than 100, more preferably 120 More than.Because the surface brightness (gloss number) of stack membrane is in the range of above-mentioned record, the aesthetic property of content can be made good It is good.
Above-mentioned surface brightness (gloss number) is calculated by following methods.
According to JIS Z 8741, the manual gloss meter PG-1 of Co. Ltd. system is adornd using Japanese electricity, in outgoing incident angle Under conditions of 60 °, to the surface measurements surface brightness of film.5 same measure are carried out to same sample, by resulting table Surface brightness of the average value of face brightness as the sample.
＜ grounds ＞
Then, the ground of the present invention is illustrated.
Fig. 3 is the figure of one for representing the ground 200 of the present invention.
As shown in figure 3, the ground 200 of the present invention is formed by above-mentioned stack membrane 100.Ground 200 passes through in the shape of stack membrane 100 Obtained into recess (depression, pocket) 201.The contents such as food, beverage or industrial components are stored in recess 201.
Wherein, ground 200 is formed in a manner of the superficial layer 1 of stack membrane 100 is outside, hot sealing layer 3 is inner side.
＜ lid materials ＞
As the material of above-mentioned lid material, such as biaxial stretch-formed polypropylene screen can be used, metal oxide has been deposited Biaxial stretch-formed polyethylene terephthalate film and lamination has film of polyvinyl resin etc..
＜ package bodies ＞
As shown in figure 4, the package body 300 of the present invention is made up of ground 200 and lid material 202, received in the recess 201 of ground After holding content, lid material 202 is sealed on ground 200, and the recess 201 of ground 200 is sealed.Ground 200 is folded by above-mentioned Tunic 100 is formed, so package body 300, which can turn into, has good pinhole resistance and gas barrier property, and crimpiness, the transparency The excellent package body with glossiness.
Embodiment
Hereinafter, the present invention is explained based on embodiment and comparative example, but the present invention is not limited thereto.
(embodiment 1)
The manufacture ＞ of ＜ stack membranes
In order to obtain stack membrane 100, as the resin for forming superficial layer 1, prepare acrylic resin (Sumitomo Chemical strain formula meeting Society's system, trade name：Nobrene FL8115).As the resin for forming adhesive linkage 41, prepare adhesive resin (Mitsui Chemicals strain Formula commercial firm system, trade name：QF551).As the resin for forming intermediate layer 2, prepare polyamide (Ube Industries, Ltd System, trade name：1030B2).As the resin for forming adhesive linkage 42, prepare adhesive resin (Mitsui Chemicals, Inc's system, business The name of an article：NF536).As hot sealing layer (A) 31, straight chain obtained from the alhpa olefin for preparing to make ethene and carbon number is 6 is copolymerized Shape ldpe resin (Dow Chemical Company's system, trade name：DOWLEX XUS60901.07).
Using feed block and die head using the above-mentioned acrylic resin as superficial layer 1, the above-mentioned bonding as adhesive linkage 41 Property resin, the above-mentioned polyamide as intermediate layer 2, the above-mentioned adhesive resin as adhesive linkage 42 and as hot sealing layer (A) 31 above-mentioned straight-chain ldpe resin co-extrusion obtained from making the alhpa olefin copolymerization that ethene and carbon number are 6 Go out, make stack membrane 100.
The overall thickness of the stack membrane 100 of embodiment 1 is 150 μm, and the thickness of superficial layer 1 is 40 μm, adhesive linkage 41 Thickness is 8 μm, and the thickness in intermediate layer 2 is 40 μm, and the thickness of adhesive linkage 42 is 8 μm, and the thickness of hot sealing layer (A) 31 is 54 μm.
The manufacture ＞ of ＜ grounds
Use deep drawing type full-automatic vacuum packaging machine (MULTIVAC company systems, model：R530), with 95 degree of forming temperature Condition, form long side 155mm, short side 112mm, drawing depth 65mm recess (depression) in resulting stack membrane, thus Obtain ground 200.
The manufacture ＞ of ＜ package bodies
Using as the ONy/LL of lid material 202 (Toppan Printing Co., Ltd's system, trade name, 65 μm of thickness) and above-mentioned formation There is the ground of recess to be sealed under conditions of 140 DEG C of seal temperature, obtain package body 300.
(embodiment 2)
As hot sealing layer (B) 32, straight-chain obtained from the alhpa olefin for preparing to make ethene and carbon number is 8 is copolymerized is low Density Polyethylene Resin (Dow Chemical Company's system, trade name：DOWLEX2032), in addition, carry out similarly to Example 1 accurate It is standby.
Using feed block and die head using the above-mentioned acrylic resin as superficial layer 1, the above-mentioned bonding as adhesive linkage 41 Property resin, the above-mentioned polyamide as intermediate layer 2, the above-mentioned adhesive resin as adhesive linkage 42, as hot sealing layer (A) 31 above-mentioned straight-chain ldpe resin and conduct obtained from making the alhpa olefin copolymerization that ethene and carbon number are 6 The above-mentioned of hot sealing layer (B) 32 makes ethene and carbon number for straight-chain low density polyethylene (LDPE) tree obtained from the alhpa olefin copolymerization of 8 Fat is coextruded, and makes stack membrane 100.
The overall thickness of the stack membrane 100 of embodiment 2 is 150 μm, and the thickness of superficial layer 1 is 40 μm, adhesive linkage 41 Thickness is 8 μm, and the thickness in intermediate layer 2 is 40 μm, and the thickness of adhesive linkage 42 is 8 μm, and the thickness of hot sealing layer (A) 31 is 36 μm, heat The thickness of sealing (B) is 18 μm.
(embodiment 3)
As hot sealing layer (B) 32, prepare straight-chain ldpe resin (Prime polymer Co. Ltd. systems, business The name of an article：Moretech 0438CN), in addition, it is prepared similarly to Example 1.
Using feed block and branch manifold die head, using as the above-mentioned acrylic resin of superficial layer 1, as the upper of adhesive linkage 41 State adhesive resin, the above-mentioned polyamide as intermediate layer 2, the above-mentioned adhesive resin as adhesive linkage 42, as heat The above-mentioned of sealing (A) 31 makes ethene and carbon number for straight-chain low density polyethylene (LDPE) tree obtained from the alhpa olefin copolymerization of 6 Fat and above-mentioned straight-chain ldpe resin (Prime polymer Co. Ltd. systems, commodity as hot sealing layer (B) 32 Name：Moretech 0438CN) coextrusion, make stack membrane 100.
The overall thickness of the stack membrane 100 of embodiment 3 is 150 μm, and the thickness of superficial layer 1 is 40 μm, adhesive linkage 41 Thickness is 8 μm, and the thickness in intermediate layer 2 is 40 μm, and the thickness of adhesive linkage 42 is 8 μm, and the thickness of hot sealing layer (A) 31 is 36 μm, heat The thickness of sealing (B) is 18 μm.
(embodiment 4)
In addition to H (A)/H (B) ratio (thickness of sealant) is 4.4, carry out similarly to Example 2.
(comparative example 1)
As hot sealing layer (A) 31, preparing low density polyethylene (LDPE) (referred to as " LDPE "), (space portion ball is apt to Co. Ltd. system, business The name of an article：F222NH), in addition, all carry out similarly to Example 1.
The overall thickness of the stack membrane of comparative example 1 is 150 μm, and the thickness of superficial layer 1 is 40 μm, the thickness of adhesive linkage 41 For 8 μm, the thickness in intermediate layer 2 is 40 μm, and the thickness of adhesive linkage 42 is 8 μm, and the thickness of hot sealing layer (A) 31 is 54 μm.
(comparative example 2)
As hot sealing layer (A) 31, preparing LDPE, (space portion ball is apt to Co. Ltd. system, trade name：Z322), in addition, entirely Portion is carried out similarly to Example 1.
The overall thickness of the stack membrane of comparative example 2 is 150 μm, and the thickness of superficial layer 1 is 40 μm, the thickness of adhesive linkage 41 For 8 μm, the thickness in intermediate layer 2 is 40 μm, and the thickness of adhesive linkage 42 is 8 μm, and the thickness of hot sealing layer (A) 31 is 54 μm.
Following evaluation is carried out for the stack membrane and package body obtained in embodiment and comparative example.Assessment item and content Represent in the lump as follows.
＜ crimpiness ＞
After 97 DEG C of tanks are put into 40 minutes, immediately on horizontally disposed measure platform with the ground of package body on the side To place, 4 jiaos of crimp height of package body is determined.The implication of each symbol is as follows.Wherein, evaluate and carried out with n=10.
○：The average value of 4 jiaos of crimp height is below 10mm.
×：The average value of 4 jiaos of crimp height is more than 10mm.
＜ mist degrees and surface brightness (gloss number) ＞
Mist degree cuts out long 50mm × wide 50mm square sheet sample from piece central portion, made according to JIS K 7136 It is measured with Japanese electricity Shi Industrial Co., Ltd NDH-2000, using the value measured as mist degree.
Surface brightness (gloss number) adorns the manual gloss meter PG- of Co. Ltd. system according to JIS Z 8741 using Japanese electricity 1, to be emitted the condition of 60 ° of incident angle, to the surface measurements surface brightness of film.5 same surveys are carried out to same sample It is fixed, the surface brightness using the average value of obtained surface brightness as the sample.
Each embodiment, the evaluation result of comparative example by more than are shown in Table 1 below.
[table 1]
As seen from table, embodiment 1~4 shows good crimpiness, mist degree and surface brightness, and comparative example 1 and 2 with Embodiment 1~4 is compared, and the arbitrary characteristic of crimpiness, mist degree or surface brightness is unsatisfactory.
Industrial utilizability
The stack membrane of the present invention can be used in the food of requirement gas barrier property and pinhole resistance, pharmaceuticals, industrial components and Packaging applicationss of electronic material etc..In addition, the stack membrane can for example be applied in most cases filled with the such stream of liquid The inner bag of the bag in box (Bag-in-Box) of the high material of dynamic property by the use of packaging film or be used as processing and eating meat, aquatic products processing The packaging film of pillow type packaging that the packaging of product and electronic material uses, vacuum forming packaging etc..Particularly the stack membrane can fit Share and make the film for packaging of electronic unit as the capacitor with hard angle or the food with bone and flesh, containing more spice The film for packaging of unsetting and with hard part the food of product and shell etc..
Symbol description
100：Superficial layer；200：Intermediate layer；300：Hot sealing layer；310：Hot sealing layer (A)；320：Hot sealing layer (B)；400：Bonding Layer；410：Adhesive linkage (X)；420：Adhesive linkage (Y)；100：Stack membrane；200：Ground；201：The recess of ground；202：Gai Cai； 300：Package body.

Claims (10)

  1. A kind of 1. stack membrane, it is characterised in that：
    Lamination has superficial layer, intermediate layer and hot sealing layer successively,
    The hot sealing layer includes hot sealing layer (A), and the hot sealing layer (A) is by making ethene and carbon number be obtained for the alhpa olefin copolymerization of 6 The straight-chain ldpe resin arrived is formed,
    The hot sealing layer also includes other hot sealing layer (B), and the hot sealing layer (B) is by the α alkene that makes ethene and carbon number is 8 Straight-chain ldpe resin obtained from hydrocarbon copolymerization is formed,
    The thickness of the hot sealing layer (A) is set to H (A), when the thickness of the hot sealing layer (B) is set to H (B), H (A)/H (B) institute table The ratio of the thickness shown is less than more than 4.4 5.0.
  2. 2. stack membrane as claimed in claim 1, it is characterised in that：
    The thickness of the hot sealing layer (A) is less than more than 3 μm 100 μm.
  3. 3. stack membrane as claimed in claim 1, it is characterised in that：
    The thickness of the hot sealing layer (B) is less than more than 3 μm 100 μm.
  4. 4. such as stack membrane according to any one of claims 1 to 3, it is characterised in that：
    The superficial layer is made up of acrylic resin.
  5. 5. such as stack membrane according to any one of claims 1 to 3, it is characterised in that：
    The intermediate layer is made up of polyamide.
  6. 6. such as stack membrane according to any one of claims 1 to 3, it is characterised in that：
    Between the superficial layer and the intermediate layer, and/or between the intermediate layer and the hot sealing layer (A), have by gluing The adhesive linkage that connecing property resin is formed.
  7. 7. such as stack membrane according to any one of claims 1 to 3, it is characterised in that：
    The thickness of the stack membrane is less than more than 50 μm 250 μm.
  8. 8. such as stack membrane according to any one of claims 1 to 3, it is characterised in that：
    The mist degree of the stack membrane is less than 15%, and surface brightness (gloss number) is more than 100.
  9. A kind of 9. ground being made up of stack membrane according to any one of claims 1 to 3.
  10. A kind of 10. package body that ground by described in claim 9 is formed.
CN201380026367.4A 2012-05-22 2013-05-15 Stack membrane Expired - Fee Related CN104321196B (en)

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JP2012116135A JP5915373B2 (en) 2012-05-22 2012-05-22 Laminated film
JP2012-116135 2012-05-22
PCT/JP2013/063546 WO2013176017A1 (en) 2012-05-22 2013-05-15 Layered film

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JP2016175345A (en) * 2015-03-20 2016-10-06 住友ベークライト株式会社 Packaging body for molding
JP6645019B2 (en) * 2015-03-23 2020-02-12 住友ベークライト株式会社 Multilayer film and package
JP6933242B2 (en) * 2019-12-18 2021-09-08 住友ベークライト株式会社 Multilayer film

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0701897A2 (en) * 1994-09-16 1996-03-20 W.R. Grace & Co.-Conn. Thermoplastic multilayer film for use in packaging water
CN1081536C (en) * 1995-07-31 2002-03-27 吴羽化学工业株式会社 Multilayer film
CN1900151A (en) * 2000-06-22 2007-01-24 埃克森美孚化学专利公司 Metallocene-produced very low density polyethylenes

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69520719T2 (en) * 1994-09-16 2001-08-09 Cryovac Inc Thermoplastic multilayer film for packaging water
JP3643449B2 (en) * 1995-07-31 2005-04-27 呉羽化学工業株式会社 Multilayer film, packaging container and packaging product comprising the same
AU735827B2 (en) * 1996-04-12 2001-07-19 Cryovac, Inc. Heat sealable film
JP4132217B2 (en) * 1998-04-28 2008-08-13 グンゼ株式会社 Multi-layer sheet with low temperature heat sealability
JP2003154614A (en) * 2001-11-20 2003-05-27 Mitsubishi Plastics Ind Ltd Co-extrusion composite film for deep draw packaging and deep draw package
JP4005977B2 (en) * 2004-04-09 2007-11-14 日本ポリオレフィン株式会社 Film and sealant
JP4889075B2 (en) * 2005-02-17 2012-02-29 株式会社クレハ Multilayer film for deep drawing packaging and container for deep drawing packaging comprising the same
JP4588490B2 (en) * 2005-02-28 2010-12-01 株式会社プライムポリマー Resin composition and stretched film obtained therefrom
JP2010280391A (en) * 2009-06-02 2010-12-16 Dainippon Printing Co Ltd Self-standing packaging container, and method for manufacturing the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0701897A2 (en) * 1994-09-16 1996-03-20 W.R. Grace & Co.-Conn. Thermoplastic multilayer film for use in packaging water
CN1081536C (en) * 1995-07-31 2002-03-27 吴羽化学工业株式会社 Multilayer film
CN1900151A (en) * 2000-06-22 2007-01-24 埃克森美孚化学专利公司 Metallocene-produced very low density polyethylenes

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CN104321196A (en) 2015-01-28
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JP5915373B2 (en) 2016-05-11
JP2013240941A (en) 2013-12-05
WO2013176017A1 (en) 2013-11-28

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