CN105579231B - Anti-fog properties multilayer film, layered product and packing timber using it - Google Patents
Anti-fog properties multilayer film, layered product and packing timber using it Download PDFInfo
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- CN105579231B CN105579231B CN201480053406.4A CN201480053406A CN105579231B CN 105579231 B CN105579231 B CN 105579231B CN 201480053406 A CN201480053406 A CN 201480053406A CN 105579231 B CN105579231 B CN 105579231B
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- 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
- 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
- B32B7/02—Physical, chemical or physicochemical 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/16—Layered products comprising a layer of synthetic resin specially treated, e.g. irradiated
-
- 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
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- 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
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
- B32B27/327—Layered products comprising a layer of synthetic resin comprising polyolefins comprising polyolefins obtained by a metallocene or single-site catalyst
-
- 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
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
- B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
-
- 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
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/54—Yield strength; Tensile strength
-
- 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
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/554—Wear resistance
-
- 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
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/582—Tearability
-
- 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
- B32B2307/72—Density
-
- 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
- B32B2310/00—Treatment by energy or chemical effects
- B32B2310/14—Corona, ionisation, electrical discharge, plasma treatment
-
- 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
- B32B2435/00—Closures, end caps, stoppers
- B32B2435/02—Closures, end caps, stoppers for containers
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Wrappers (AREA)
- Laminated Bodies (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Thermal Sciences (AREA)
Abstract
The present invention relates to a kind of multilayer film, its be with straight chain shaped polyethylene (a) be main component and be free of antifoggant laminate layers (A), intermediate layer (B) containing straight chain shaped polyethylene (b1) and antifoggant (b2), and the multilayer film that the hot sealing layer (C) containing polypropylene-based resin (c1) and antifoggant (c2) is laminated according to (A)/(B)/(C) order, relative to the gross mass of multilayer film, contain by 0.8~1.6 mass % scope of total quality of antifoggant (b2) and antifoggant (c2), and two outer surfaces of multilayer film are treated as 35~45mN/m of wetting tension scope, the total thickness of multilayer film is 20~100 μm.
Description
Technical field
The present invention relates to can be suitable for use as food container it is lid material, have anti-fog properties and easily openable multilayer concurrently
Film and use its layered product.
Background technology
In recent years, in food packaging market, the visuality of content such as in order to improve fruit and vegetable, non-staple foodstuff, to bag
Fill material and require anti-fog properties.Caused by this is following reasons：If due to moisture from the fruit and vegetable in container, non-staple foodstuff evaporation and
Packing timber inner surface produces water smoke, then is difficult to see content, commodity value reduction, i.e. can not meet consumer's needs food
Safety and the requirement felt at ease.And then, it is necessary to have certain sealing before content is taken out for the lid material of container
Property, on the other hand, under universal designization tendency, as the weak person (old man, child, disabled person etc.) of consideration to(for) society,
Mode that consumer easily breaks a seal, such as easily openable are taken seriously.
Now, as the method anti-fog properties to packing timber imparting, it is known that following methods：Antifoggant is mixed into packaging material
In the resin used, make its be shaped to it is membranaceous after, for various packing timber purposes carry out post forming method (referring for example to special
Sharp document 1.)；And make resin forming after membranaceous, the method (example of antifoggant is coated with least on the face contacted with content
As with reference to patent document 2).
Antifoggant is mixed into the method for resin, mixed in the case of for monofilm or in whole layers for multilayer film
Enter in the case of having antifoggant, when implementing printing on its surface or being fitted with other base material films, sometimes, what surface was oozed out
Antifoggant reacts with printing-ink, bonding agent, occurs peeling, the poor attachment of printing surface.In the case of for multilayer film,
There is provided the example (referring for example to patent document 3) that antifoggant is only mixed into specific layer, but antifoggant is with easily in multilayer
The property moved in film, therefore anti-fog properties effect and do not know, the problem of existing without effective continuation.
In addition, the masking liquid containing antifoggant is being coated in the method on film surface, it is necessary to the drying process of film, production
Efficiency is low, and then, the antifoggant of coated face can have the continuation drop of anti-fog effect because moisture evaporates from content and flows
Low the problem of.
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 04-047936 publications
Patent document 2：Japanese Unexamined Patent Publication 09-248880 publications
Patent document 3：Japanese Unexamined Patent Publication 2007-253349 publications
The content of the invention
Problems to be solved by the invention
In view of above-mentioned actual conditions, problem of the invention is to prevent from being led by the water vapour from content there is provided a kind of
The water smoke of cause it is anti-fog properties it is good, while having the multilayer of the purposes such as excellent easily openable, the lid material for being suitable for packing container
Film, and the stratified film is pressed on the layered product of base material film and its packing timber is used.
Method for solving problem
In order to solve the problem, present inventor has performed further investigation, as a result find, following multilayer film can solve the problem that
Problem is stated, so as to complete the present invention：The multilayer film is at least 3 layers of multilayer for being laminated specific olefin-based resin
Film, it has carried out the layer being mixed into of antifoggant, adjusts the use ratio of antifoggant and has carried out multilayer film by suitably selecting
It is surface-treated and obtains.
That is, the stacking that the present invention provides a kind of anti-fog properties multilayer film, is laminated the anti-fog properties multilayer film and base material film
Body and its packing timber is used, the anti-fog properties multilayer film is characterised by, it is for main component with straight chain shaped polyethylene (a)
And without the laminate layers (A) of antifoggant, the intermediate layer (B) containing straight chain shaped polyethylene (b1) and antifoggant (b2) and contain
The multilayer film that the hot sealing layer (C) of polypropylene-based resin (c1) and antifoggant (c2) is laminated according to (A)/(B)/(C) order,
Relative to the gross mass of above-mentioned multilayer film, total quality using above-mentioned antifoggant (b2) and above-mentioned antifoggant (c2) is 0.8~1.6
Quality % scope contains, and two outer surfaces of above-mentioned multilayer film are treated as the scope that wetting tension is 35~45mN/m,
The total thickness of multilayer film is 20~100 μm.
Invention effect
The anti-fog properties multilayer film of the present invention and using its layered product when the lid material as packing container is sealed or shape
Pouch and during flap seal, show the easily openable based on splitting.And then, it is anti-fog properties good, also held with it
Continuous property, it is thus possible to suitably used as the packing timber of fruit and vegetable, non-staple foodstuff etc..
Embodiment
Hereinafter, to constituting the anti-fog properties multilayer film of the present invention and being described in detail using each several part of layered product obtained by it.
[laminate layers (A)]
The present invention laminate layers (A) be characterised by, its be with the layer that straight chain shaped polyethylene (a) be main component, and this
Layer is free of antifoggant.
In the present invention, refer to as main component, relative to formed this layer resin component total amount, containing 65 mass % with
Specific resin that is upper, being preferably more than 80 mass %.
It is the low pressure radical polymerization by using single-point catalyst, with second as above-mentioned straight chain shaped polyethylene (a)
Alkene monomer is allowed to and as α-alkene such as the butene-1 of comonomer, hexene -1, octene-1,4- methylpentenes as main component
Hydrocarbon copolymerization is formed.As comonomer containing ratio, preferably 0.5~20 mole % scope, more preferably 1~18 mole %'s
Scope.
As above-mentioned single-point catalyst, the metallocene compound of periodic table of elements iv or V group 4 transition metals can be enumerated
With the various single-point catalysts such as the metallocene catalyst system such as the combination of organo-aluminum compound and/or ionic compound.In addition,
Because the active site of single-point catalyst is homogeneous, so compared with the inhomogenous many site catalysts of active site, obtained resin
Molecular weight distribution it is sharp, therefore, when forming film, the precipitation of low molecular weight compositions is few, obtains the adhesive strength of resin interlayer
The resin of the physical property of excellent in stability, so it is preferred that.
It is used as the density of the straight chain shaped polyethylene (a) used in laminate layers (A), preferably 0.920~0.945g/cm3, more
Preferably 0.930~0.940g/cm3Scope.If density is within the range, the rigidity with appropriateness, paracentesis resistance etc.
Mechanical degrees are also excellent, and film film forming, extrudability are improved.In addition, fusing point is preferably 60~130 DEG C of scope, more preferably 70
~125 DEG C.If fusing point is within the range, processability when processing stability and other layers of coextrusion are processed is improved.This
Outside, the MFR (190 DEG C, 21.18N) of above-mentioned straight chain shaped polyethylene (a) is preferably 2~20g/10 minutes, more preferably 3~10g/
10 minutes.If MFR is within the range, the extrusion molding of film is improved.
As described above, laminate layers (A) with above-mentioned straight-chain polyethylene (a) be main component, use bonding agent and other bases
When material is laminated, when implementing printing etc., from improve with from the viewpoint of the purpose such as bonding agent, the adaptation of printing-ink, can
With and use other resins.As now can and other resins, from obtained multilayer film the transparency from the viewpoint of, it is excellent
Elect vinylite as, can enumerate for example：Side chain shaped polyethylene, vinyl-vinyl acetate copolymer (EVA), ethene-methyl
Methyl acrylate copolymer (EMMA), ethylene-ethyl acrylate copolymer (EEA), ethylene-methyl acrylate (EMA) copolymer,
Ethylene-ethylacrylate-copolymer-maleic anhydride (E-EA-MAH), ethylene-acrylic acid copolymer (EAA), ethene-metering system
The vinyl copolymers such as acid copolymer (EMAA), can further enumerate ionomer, the ethene-methyl of ethylene-acrylic acid copolymer
Ionomer of acrylic copolymer etc., norborneol alkene monomer etc. have the copolymerization of the monomer and ethene of cyclic olefin structure etc.
Thing；It can be used alone, two or more can also be mixed and used.
[intermediate layer (B)]
Contain straight chain shaped polyethylene (b1) and antifoggant (b2) in intermediate layer (B) in the multilayer film of the present invention.The straight-chain
Polyethylene (b1) is identical with the straight chain shaped polyethylene (a) used in above-mentioned laminate layers (A).
As the use ratio of the above-mentioned straight chain shaped polyethylene (b1) in intermediate layer (B), preferably using the resin as it is main into
Point, particularly preferably contain more than 90 mass %.As can and other resin types, and as can be at laminate layers (A)
In and resin and the resin that illustrates is identical.
As above-mentioned antifoggant (b2), as long as it is many as the general material anti-fog properties added to olefin-based resin imparting
Well known material is just not particularly limited, can use for example anion system surfactant, nonionic surfactants,
Cation system surfactant, amphoteric surfactant etc., preferably use nonionic surfactants.
Specifically, it can enumerate：Sorbitan monostearate, sorbitol anhydride distearate, sorbitol anhydride list palm fibre
Glycerin monostearate, sorbitol anhydride dipalmitate, sorbitol anhydride list behenic acid ester, the behenic acid ester of sorbitol anhydride two, sorbitol anhydride Dan Yue
The sorbitol anhydride system such as cinnamic acid ester, sorbitol anhydride dilaurate surfactant, glyceryl monolaurate, glycerine tin dilaurate
Ester, two glycerol monopalmitates, two dipalmitins, glyceryl monostearate, glycerol distearate, two glycerine lists are hard
The glycerine system such as resin acid ester, two glycerol distearates, Sunsoft Q 12D, two dilaurins surfactant,
The polyethylene glycol system such as polyethylene glycol mono stearate, polyethylene glycol monopalmitate surfactant, trimethylolpropane list is hard
The trimethylolpropane such as resin acid ester system surfactant, Lauryl Diethanolamine, oil base diethanol amine, stearyl diethanol amine,
The diethanol alkyl amine systems such as lauryl diglycollic amide, oil base diglycollic amide, stearyl diglycollic amide and diethanol alkyl
Acid amides system surfactant, the pentaerythrite system surfactant such as pentaerythritol monopalmitate, and polyoxyethylene sorbitol
Acid anhydride monostearate, polyoxyethylene sorbitol acid anhydride distearate, the monostearate of the glycerol condensate of sorbitol anhydride-two and two
Stearate etc..They can be used alone or combine two or more and use.
As the use ratio of the antifoggant (b2) in above-mentioned intermediate layer (B), relative to the gross mass of this layer, it is preferably
The scope of 0.8~5.0 mass % scope, particularly preferably 1.0~3.0 mass %.By using antifoggant within the range
(b2), will not occur the excessive migration to above-mentioned laminate layers (A), easily make as the anti-fog properties good of film.
Intermediate layer (B) in the anti-fog properties multilayer film of the present invention can be using the different a variety of straight chain shaped polyethylenes of density
Obtained by more than 2 layers of sandwich construction, especially from can effectively suppress from the viewpoint of antifoggant migrates to laminate layers, preferably
Intermediate layer (B) in ground, anti-fog properties multilayer film is formed by the different layer of density (B1) and layer (B2), according to (A)/(B1)/(B2)/
(C) order stacking, and the straight chain shaped polyethylene contained in the density ratio layer (B2) of the straight chain shaped polyethylene contained in layer (B1)
Density it is high.
During with more than 2 layers of intermediate layers (B), the density of the straight chain shaped polyethylene contained in above-mentioned layer (B1) is 0.920
~0.945g/cm3Scope, the density of the straight chain shaped polyethylene contained in above-mentioned layer (B2) is 0.880~0.920g/cm3Model
Enclose, from the anti-fog properties and antifoggant as multilayer film to the balancing good aspect of the inhibition of metastasis of laminate layers be preferred.
In addition to the density conditions of straight chain shaped polyethylene, straight chain shaped polyethylene (b1), the antifoggant used in above-mentioned intermediate layer (B)
(b2) it is identical.
From the viewpoint of the migration for suppressing antifoggant (b2), the adjacent intermediate layer (B1) particularly preferably with laminate layers (A)
The density of straight chain shaped polyethylene (a) of the density of the middle straight chain shaped polyethylene used with being used in above-mentioned laminate layers (A) it is identical or
It is smaller.
It is identical or different in all multiple intermediate layers (B) as antifoggant (b2) use ratio, and then, make
It is also identical or different for the species of used antifoggant (b2), goes out from the viewpoint of the anti-fog properties continuation as film
Hair, preferably uses antifoggant of the same race.
[hot sealing layer (C)]
It is easy when being used from the lid material as container, packaging bag as the hot sealing layer (C) in the multilayer film of the present invention
, it is necessary to use polypropylene-based resin (c1) from the viewpoint of performance easily openable.
As above-mentioned polypropylene-based resin (c1), as long as can just not have with above-mentioned laminate layers (A), intermediate layer (B) stacking
Be particularly limited to, can enumerate Noblen, propylene-alpha-olefin random copolymer, such as propylene-ethylene copolymers, propylene-
1-Butylene copolymer, the copolymer of propylene-ethylene-butene -1, metallocene catalyst system polypropylene etc..They can be individually
Use, can also be used in combination.Preferably propylene-alpha-olefin random copolymer, particularly preferably uses metallocene catalyst as described above
Propylene-alpha-olefin random copolymer obtained by polymerization.By using resin of these propylene resins as hot sealing layer (C),
Lid material of the sealing surface of packing container for the packing container of the resin bed containing polypropylene-based resin can be particularly suitable for.
In addition, polypropylene-based resin (c1) is preferably MFR (230 DEG C) 0.5~30.0g/10 minutes, 110~165 DEG C of fusing point
Material, more preferably MFR (230 DEG C) 2.0~15.0g/10 minutes, the material of 115~162 DEG C of fusing point.If MFR and fusing point
Within the range, then the contraction of film is small when sealing, and then the film forming of film is also improved.
As the use ratio of the above-mentioned polypropylene-based resin (c1) in hot sealing layer (C), preferably using the resin as it is main into
Point, particularly preferably contain more than 90 mass %.As can and other resin types, and as can be at laminate layers (A)
In and resin and the resin that illustrates is identical.
As the antifoggant (c2) used in hot sealing layer (C), it can use antifog as what is used in above-mentioned intermediate layer (B)
Agent (b2) and any antifoggant illustrated, material preferably is also identical.
, can be with identical as the antifoggant (c2) used in the antifoggant (b2) and hot sealing layer (C) used in intermediate layer (B)
Can also be different.In the antifoggant using masterbatch, according to the viewpoint of compatibility, matrix resin is preferred in intermediate layer (B)
It is preferably polypropylene-based resin for polyethylene-based resin, in hot sealing layer (C).
As the use ratio of the antifoggant (c2) in hot sealing layer (C), relative to the gross mass of this layer, preferably 1.0~
The scope of 6.0 mass % scope, particularly preferably 1.2~4.0 mass %.By using antifoggant (c2) within the range,
It is readily available as the good film of anti-fog properties, the antifog continuation of film.
[anti-fog properties multilayer film]
The anti-fog properties multilayer film of the present invention be above-mentioned laminate layers (A), intermediate layer (B) and hot sealing layer (C) according to (A)/(B)/
(C) multilayer film being laminated.On the anti-fog properties multilayer film of the present invention, in its layer composition, laminate layers (A) are without antifog
Contain antifoggant in agent, two layers of intermediate layer (B) and hot sealing layer (C), and then, the content for making antifoggant is, relative to multilayer film
Gross mass, total quality of antifoggant is 0.8~1.6 mass % scope, and the wetting tension of two outer surfaces is 35~45mN/
M, its total thickness is 20~100 μm.The multilayer film of this composition can realize it is suitable anti-fog properties, meanwhile, it is capable to be realized in heat-sealing
Suitable adhesive strength, also suitable easily openable can be kept during Kaifeng in (B)/(C) interlayers.In addition, except being difficult to occur
Antifoggant comes off, additionally it is possible to stable to keep anti-fog properties, and bonding also good with printing or other base materials.
As the total thickness of the anti-fog properties multilayer film of the present invention, from it is easily laminated when stacking is used with other base materials, can
Obtain it is appropriate it is anti-fog properties set out, preferably 20~100 μm of scope, according to the viewpoint of easy film forming, especially preferably 30~
80 μm of scope.
In addition, as the ratio of each layer in multilayer film, according to the viewpoint of sealing, easily openable and plyability, preferably
The scope that scope that the thickness ratio in intermediate layer (B) is 35~60%, the thickness ratio of hot sealing layer (C) are 8~15%.
As the present invention anti-fog properties multilayer film entirety contained by antifoggant total amount, be 0.8~1.6 mass %, from into
From the viewpoint of the good aspect of film and anti-fog properties, antifog continuation, especially preferably 1.0~1.3 mass % scope.
In the range of the purpose of the present invention is not damaged, in each layer (A) of anti-fog properties multilayer film of the invention, (B), (C)
Antistatic additive, heat stabilizer, nucleator, antioxidant, lubricant, antiblocking agent, releasing agent, ultraviolet radiation absorption can be added
The compositions such as agent, colouring agent.Especially, in order to assign film shaping when flexibility (adaptability) of operation, the packaging adaptability of filling machine, film surface
Coefficient of friction be less than 1.5, wherein, preferably less than 1.0, thus, it is preferable in the resin of the superficial layer equivalent to multilayer film
Lubricant, antiblocking agent, antistatic additive are properly added in layer.
In addition, in the anti-fog properties multilayer film of the present invention, handling two outer surfaces of film, the wetting on surface is set to
35~45mN/m of power scope, preferably 38~42mN/m scope.As such processing method, such as corona can be enumerated
The surface oxidation treatments such as discharge process, plasma treatment, chromic acid processing, flame treatment, hot blast processing, the processing of ozone-ultraviolet line,
Or the processing of the concave-convex surface such as sandblasting, preferably Corona discharge Treatment.By carrying out such surface treatment, in the layer of the multilayer film
In laminate layer (A) printing, coating adhesive and implement with base material stacking etc. subsequent handling when, ink, the coating of bonding agent become
Well, with the excellent adhesion of ink, aluminium, sticky end coating agent etc., the problems such as easily avoiding ink, the coming off of AM aluminum metallization, leafing.
In addition, being handled by the surface to hot sealing layer (C), the antifoggant longer term can be fixed on outer surface, as anti-
Mist and the excellent film of antifog continuation.The processing method and processing degree of laminate layers (A) and hot sealing layer (C) can be with identical
With difference, from the viewpoint of productivity ratio, preferably handled in the same way.
Be not particularly limited as the method for Corona discharge Treatment, for example, can by Japanese Patent Publication 39-12838,
Japanese Unexamined Patent Application 47-19824, Japanese Unexamined Patent Application 48-28067, described in No. 52-42114 each publication of Japanese Unexamined Patent Application
Carried out etc. processing method.Corona discharge treatment device can use Pillar company system Solid State corona treatments,
LEPEL types surface treating machine, VETAPHON type processors etc..Processing can be with progress under aerial normal pressure.Putting during processing
Electric frequency is 5kV~40kV, and more preferably 10kV~30kV, waveform is preferably AC sine wave.Between electrode and dielectric roller
The bright length of effusion is 0.1mm~10mm, more preferably 1.0mm~2.0mm.Electric discharge is in the dielectric backing roll located at electric discharge frequency domain
Top handled, treating capacity be 0.34kVA minutes/m2~0.4kVA minutes/m2, more preferably 0.344kV
A minutes/m2~0.38kVA minutes/m2。
Peel strength of the stacked film of the present invention after heat-sealing is suitably adjusted according to use state, for example, will cut out
Peel strength when being sealed 1 second with 180 DEG C, 0.2MPa in polypropylene film-making for 10cm × 5cm stacked film of the invention is excellent
Elect 5~20N/15mm, more preferably 8~12N/15mm as.By being set to the peel strength, it is difficult to occur stacked film stripping,
Come off, and easily openable during Kaifeng is particularly suitable.
As the manufacture method of the anti-fog properties multilayer film of the present invention, it is not particularly limited, what can for example be listed below is total to
Extrusion molding：By each resin or resin compound that are used in laminate layers (A), intermediate layer (B), hot sealing layer (C) respectively with respective
Extruder heating melting, by methods such as coextruded multilayer modulus method, feed block methods, with molten condition according to (A)/(B)/(C) or
(A)/(B1)/(B2)/(C) sequential layer poststack, is shaped to membranaceous by inflation, T moulds-chilled roll method etc..The coetrusion
Can than being relatively freely adjusted to the thickness ratio of each layer, and can obtain that wholesomeness is excellent, cost performance also excellent multilayer
Film, so it is preferred that.Wherein, T moulds-chilled roll method easily suppresses film outward appearance during the different resin coextrusion of fusing point, Tg
Deterioration, easily forms uniform layer and constitutes, and is readily available the suitable film of the transparency, gloss, so it is preferred that.In addition, inflation method
Simple equipments, so it is preferred that, it is also adapted to the production of a small amount of multi items.
The anti-fog properties multilayer film of the present invention is to be obtained by above-mentioned manufacture method with the multilayer form membrane of substantial tensionless winkler foundation
, it is thus possible to the post forming such as enough deep drawn shapings carried out using vacuum forming, embossing processing.
The anti-fog properties multilayer film of the present invention can be fitted with other base materials and used.It is used as other that can now use
Base material, is not particularly limited, and from the viewpoint of the effect of the easy performance present invention, preferably uses with high rigidity, high glaze
Thermoplastic resin film, especially through biaxial stretch-formed resin film.In addition, in the case of purposes that need not be transparent, can
So that aluminium foil is used alone or in combination.
As the resin film of drawn, it can enumerate for example with biaxially stretched polyester (PET), biaxial stretch-formed polypropylene
(OPP), centered on Biaxially oriented polyamide (PA), ethylene vinyl alcohol copolymer (EVOH) layer coextrusion biaxial stretch-formed poly- third
Alkene, scribble biaxial stretch-formed ethylene vinyl alcohol copolymer (EVOH), polyvinylidene chloride (PVDC) coextrusion it is biaxial stretch-formed poly-
Propylene etc..They can be used alone or Composite and use.
The layered product of the present invention is to state thermoplastic resin the anti-fog properties multilayer film upper strata obtained by the above method is stacked on
Laminated film obtained by film, as laminating method, can enumerate such as dry lamination, wet type lamination, solventless liminating, extrusion lamination
Etc. method.
As the bonding agent used in above-mentioned dry lamination, it can enumerate such as polyester-polyurethane system bonding agent.In addition
Various adhesives can also be used, pressure-sensitive adhesive is preferably used.As pressure-sensitive adhesive, can enumerate for example will be poly- different
Rubber obtained by organic solvent as butene rubber, butyl rubber, their mixture are dissolved in benzene,toluene,xylene, hexane
Glue system adhesive coordinates rosin acid rosin ester, terpene-phenol copolymer, terpenes-indenes copolymerization in these elastomeric adhesives
Adhesive obtained by the bonding imparting agent such as thing or by 2- ethylhexyl acrylates-n-butyl acrylate copolymers, 2- ethyl hexyls
Acrylic acid series of the glass transition point such as base Acrylate-Acrylic ethyl ester-methylmethacrylate copolymer below -20 DEG C is total to
Polymers organic solvent dissolve obtained by acrylic adhesive etc..
It is not particularly limited as the purposes of the above-mentioned layered product of the present invention, food, medicine, industry can be suitably used for
Lid material of the packing container used in the purposes such as part, groceries, magazine etc..Especially, from the flat of easily openable and sealing intensity
From the viewpoint of weighing apparatus, the outermost layer (part Nian Jie with the hot sealing layer of the multilayer film of the present invention) of the packing container contains various third
Alkene system resin is preferred.
Embodiment
Next, enumerating embodiment and comparative example, the present invention will be described in further detail.Hereinafter, except no special refers to
Bright, otherwise, " part " is quality criteria.
(modulation example 1)
[modulation of the antifog masterbatch by matrix of propylene-ethylene copolymers]
Using propylene-ethylene copolymers [MFR (230 DEG C) 7g/10min, 130 DEG C of fusing point (being used as polypropylene (1) below)] and
The nonionic surfactants RIKEMAL O-71-D of Riken Vitamin Co., Ltd. mix for 90/10 mode in mass ratio
Close, after extruder melting mixing, antifoggant masterbatch pellet (following, to be used as antifoggant (1)) is obtained with comminutor.
(modulation example 2)
[modulation of the antifog masterbatch by matrix of straight chain shaped polyethylene]
By straight chain shaped polyethylene [MFR (190 DEG C) 4g/10min, density 0.905g/cm3] [below as LLDPE (1)] and
The nonionic surfactants RIKEMALO-71-D of Riken Vitamin Co., Ltd. mixes for 80/20 mode in mass ratio
Close, after extruder melting mixing, antifoggant masterbatch pellet is obtained with comminutor (below as antifoggant (2)).
(modulation example 3)
[modulation of the antifog masterbatch by matrix of low density polyethylene (LDPE)]
By density 0.918g/cm3, MFR3.4g/10min low density polyethylene (LDPE) [hereinafter referred to as LDPE] and reason grind and tie up him
The nonionic surfactants RIKEMAL O-71-D for ordering Co. Ltd. system mix for 80/20 mode in mass ratio, with squeezing
Go out after machine melting mixing, antifoggant masterbatch pellet is obtained with comminutor (below as antifoggant (3)).
(embodiment 1)
As hot sealing layer (C) resin, 76 parts of polypropylene (1) and 24 parts of antifoggants (1) are mixed and used.It is now hot
The antifog agent concentration of sealing (C) is 2.4 mass %.It is as intermediate layer (B2) resin, 80 parts of LLDPE (1) and 20 parts are anti-
Mist agent (2) is mixed and used.Antifog agent concentration now is 4 mass %.It is close by 97.5 parts as intermediate layer (B1) resin
Spend 0.933g/cm3, MFR 5.0g/10min straight chain shaped polyethylene [hereinafter referred to as LLDPE (2)] and 2.5 parts of antifoggants (2) mix
Close and use.Antifog agent concentration now is 0.5%.As laminate layers (A) resin, use LLDPE (2).Respectively will tree
Fat is supplied to hot sealing layer (C) extruder (bore 40mm), intermediate layer (B2) and used with extruder (bore 40mm), intermediate layer (B1)
Extruder (bore 50mm) and laminate layers (A) are with extruder (bore 50mm), by coetrusion with 250 DEG C of extrusion temperature
Extruded from T moulds by the thickness of (A)/(B1)/(B2)/(C) each layer in the way of 10 μm/12 μm/4 μm/4 μm, utilize 40 DEG C of water
Cold metal chill roll is cooled down.Next, laminate layers and the two surfaces of hot sealing layer are implemented with Corona discharge Treatment, rolled,
Aging 24 hours in 38 DEG C of aging chamber, obtain the multilayer film of the invention of 30 μm of total thickness.Relative to the matter of film entirety now
Amount, antifog agent concentration is about 1.1 mass %.The wetting tension for being laminated layer surface is 39mN/m, seals the wetting tension of layer surface
For 44mN/m.Then, by obtained co-extruded films and urethane adhesive [the DIC plants of formula meetings of 12 μm of biaxially oriented polyester film
Society DIC DRY LX510/KR90] laminating, obtain layered product.
(embodiment 2)
As intermediate layer (B1) resin, by LLDPE (2) and antifoggant (2) in the way of mixing ratio is 99.5/0.5
Mix and use.The antifog agent concentration in intermediate layer (B1) now is that (the overall antifog agent concentration of film is about 0.1 mass %
0.9 mass %).In addition, the corona discharge output to hot sealing layer side is adjusted, the wetting tension for sealing layer surface is set to
39mN/m.In addition, operate similarly to Example 1, obtain the layered product of embodiment 2.
(embodiment 3)
It is 99.5/0.5 mode in mass ratio by LLDPE (2) and antifoggant (2) as intermediate layer (B1) resin
Mix and use.The antifog agent concentration in intermediate layer (B1) now is that (the overall antifog agent concentration of film is about 0.1 mass %
0.9 mass %).In addition, the corona discharge output to hot sealing layer side is adjusted, the wetting tension for sealing layer surface is set to
35mN/m.In addition, operate similarly to Example 1, obtain the layered product of embodiment 3.
(embodiment 4)
Integral thickness is set to 90 μm so that the thickness of (A)/(B1)/(B2)/(C) each layer turn into 30 μm/36 μm/12 μm/
12 μm of mode changes the rotary speed of chill roll, is adjusted to pulling speed, in addition, grasps similarly to Example 1
Make, obtain the layered product of embodiment 4.
(embodiment 5)
As intermediate layer (B1) resin, LLDPE (2) and antifoggant (2) are mixed for 92/8 mode in mass ratio
And use.The antifog agent concentration in intermediate layer (B1) now is that (the overall antifog agent concentration of film is about 1.5 matter to 1.6 mass %
Measure %).In addition, operate similarly to Example 1, obtain the layered product of embodiment 5.
(embodiment 6)
As intermediate layer (B2) resin, LLDPE (1) is replaced using LLDPE (2), it is in addition, same with embodiment 1
Operate sample, obtain the layered product of embodiment 6.
(embodiment 7)
As laminate layers (A) resin, density 0.920g/cm is used3, MFR (190 DEG C) 4g/10min straight-chain gather
Ethene [hereinafter referred to as LLDPE (3)], in addition, operates, obtains the layered product of embodiment 7 similarly to Example 1.
(embodiment 8)
Use resin as hot sealing layer (C), the mode by polypropylene (1) and antifoggant (1) in mass ratio for 76/24 mix and
Use.The antifog agent concentration in hot sealing layer (C) now is 2.4 mass %.As intermediate layer (B1) resin, by LLDPE
(1) mix and use for 92.5/7.5 mode in mass ratio with antifoggant (2).The antifoggant in intermediate layer (B1) now is dense
Spend for 1.5 mass %.Resin is used as laminate layers (A), is used LLDPE (2).Respectively resin is supplied to hot sealing layer (C) to use and squeezed
Go out machine (bore 30mm), intermediate layer (B1) with extruder (bore 40mm) and laminate layers (A) extruder (bore 30mm), pass through
Coetrusion is squeezed for 250 DEG C using extrusion temperature from T moulds by the thickness of (A)/(B1)/(C) each layer in the way of 10 μm/16 μm/4 μm
Go out, in addition, operate similarly to Example 3, obtain the layered product of embodiment 8.Now the overall antifog agent concentration of film is about
For 1.1 mass %.
(embodiment 9)
As intermediate layer (B1) resin, LLDPE (1) is replaced using LLDPE (2), it is in addition, same with embodiment 8
Operate sample, obtain the layered product of embodiment 9.
(embodiment 10)
It is as hot sealing layer (C) resin, propylene-ethylene-butene-1 copolymer is [MFR (230 DEG C) 7g/10min, molten
Point 129 DEG C (below as polypropylene (2))] and antifoggant (1) mix and use for 76/24 mode in mass ratio.In addition, right
The corona discharge output of hot sealing layer side is adjusted, and the wetting tension for sealing layer surface is set into 39mN/m.In addition, with reality
Apply example 1 similarly to operate, obtain the layered product of embodiment 10.
(embodiment 11)
Corona discharge output to laminate layers side is adjusted, and the wetting tension of laminate surface is set into 44mN/m, to heat-sealing
The sided corona treatment output of layer side is also adjusted, and the wetting tension of heat cover is set into 39mN/m, in addition, with embodiment 1
Similarly operate, obtain the layered product of embodiment 11.
(embodiment 12)
The output of the corona discharge of laminate layers side is adjusted, the wetting tension of laminate surface is set to 36mN/m, except this with
Outside, operate similarly to Example 11, obtain the layered product of embodiment 12.
(embodiment 13)
Resin is used as laminate layers (A), LLDPE (2) and LDPE is mixed for 80/20 mode in mass ratio, in addition, right
The sided corona treatment output of hot sealing layer side is also adjusted, and the wetting tension of heat cover is set into 39mN/m, in addition, with implementation
Example 1 is similarly operated, and obtains the layered product of embodiment 13.
(embodiment 14)
It is 77.5/20/ in mass ratio by LLDPE (2), LDPE and antifoggant (2) as intermediate layer (B1) resin
2.5 mode is mixed and used.The antifog agent concentration in intermediate layer (B1) now is 0.5 mass %.It is used as intermediate layer (B2)
Resin, LLDPE (1), LDPE and antifoggant (2) are mixed and used for 60/20/20 mode in mass ratio.Now
Antifog agent concentration is 4%.In addition, the sided corona treatment output to hot sealing layer side is also adjusted, the wetting tension of heat cover is set
For 39mN/m, in addition, operate similarly to Example 1, obtain the layered product of embodiment 14.The now overall antifoggant of film
Concentration is about 1.1 mass %.
(comparative example 1)
Corona discharge Treatment is not implemented to hot sealing layer, in addition, operates similarly to Example 1, obtains comparative example 1
Layered product.
(comparative example 2)
Corona discharge output to hot sealing layer side is adjusted, and the wetting tension on the surface of hot sealing layer is set into 33mN/m,
In addition, operate similarly to Example 1, obtain the layered product of comparative example 2.
(comparative example 3)
Corona discharge Treatment is not implemented to hot sealing layer, integral thickness is set to 150 μm, it is each with (A)/(B1)/(B2)/(C)
The thickness of layer is that 50 μm/60 μm/20 μm/20 μm of mode changes the rotary speed of chill roll, is adjusted, removes to pulling speed
Beyond this, operate similarly to Example 1, obtain the layered product of comparative example 1.
(comparative example 4)
Corona discharge output to hot sealing layer side is adjusted, and the wetting tension on the surface of hot sealing layer is set into 39mN/m.
Resin is used as intermediate layer (B1), using only LLDPE (2), without antifoggant；Resin is used as intermediate layer (B2), by LLDPE
(1) mix and use for 90/10 mode in mass ratio with antifoggant (2).The antifog agent concentration in intermediate layer (B2) now
For 2.0 mass %.In addition, operate similarly to Example 1, obtain the layered product of comparative example 4.Now film entirety is antifog
Agent concentration is about 0.6 mass %.
(comparative example 5)
As intermediate layer (B1) resin, LLDPE (2) and antifoggant (2) are mixed for 88/12 mode in mass ratio
And use.Antifog agent concentration now is 2.4 mass % in intermediate layer (B1).In addition, grasp similarly to Example 1
Make, obtain the layered product of comparative example 5.Now the overall antifog agent concentration of film is about 1.8 mass %.
(comparative example 6)
Resin is used as laminate layers (A), LDPE and antifoggant (2) are mixed and used for 99/1 mode in mass ratio.
Now the antifog agent concentration in laminate layers (A) is 0.2 mass %.Resin is used as intermediate layer (B1) and (B2), by LDPE and anti-
Mist agent (2) is mixed and used for 98.5/1.5 mode in mass ratio.The now antifog agent concentration in intermediate layer (B1) and (B2)
For 0.3 mass %.In addition, operate similarly to Example 1, obtain the layered product of comparative example 6.Now film entirety is antifog
Agent concentration is about 1.0 mass %.
(comparative example 7)
Resin is used as laminate layers (A), using only LDPE (branched), in addition, is operated similarly to Example 1,
Obtain the layered product of comparative example 7.
(comparative example 8)
Resin is used as laminate layers (A), LLDPE (2) and antifoggant (2) are mixed and made for 99/1 mode in mass ratio
With.The antifog dosage in intermediate layer (B1) now is 0.2 mass %.In addition, operate, obtain similarly to Example 1
The layered product of comparative example 8.Now the overall antifog agent concentration of film is about 1.1 mass %.
(comparative example 9)
As intermediate layer (B1) resin, LDPE and antifoggant (3) are mixed for 92.5/7.5 mode in mass ratio
And use.The antifog agent concentration in intermediate layer (B1) now is 1.5 mass %.Sided corona treatment output to hot sealing layer side is also entered
Row adjustment, is set to 44mN/m by the wetting tension of heat cover, in addition, operates similarly to Example 8, obtain comparative example 9
Layered product.Now the overall antifog agent concentration of film is about 1.1 mass %.
(comparative example 10)
As intermediate layer (B1) resin, LDPE and antifoggant (3) are mixed for 97.5/2.5 mode in mass ratio
And use.The antifog agent concentration in intermediate layer (B1) now is 0.5 mass %.In addition, as intermediate layer (B2) resin,
LDPE and antifoggant (3) are mixed and used for 80/20 mode in mass ratio.Antifog agent concentration now is 4 mass %.Remove
Beyond this, operate similarly to Example 1, obtain the layered product of comparative example 10.Now the overall antifog agent concentration of film is about 1.1
Quality %.
(comparative example 11)
Corona discharge Treatment is not carried out to laminate layers side, in addition, operates similarly to Example 1, obtains comparative example
11 layered product.
(comparative example 12)
As intermediate layer (B1) resin, LLDPE (2) and antifoggant (2) are mixed for 95/5 mode in mass ratio
And use.The antifog agent concentration in intermediate layer (B1) now is 1 mass %.In addition, resin is used as intermediate layer (B2), will
LLDPE (1) and antifoggant (2) are mixed and used for 75/26 mode in mass ratio.Antifoggant now in intermediate layer (B2) is dense
Spend for 5%.Antifoggant is not added with laminate layers (A) and hot sealing layer (C).In addition, operate, obtain similarly to Example 1
The layered product of comparative example 12.Now the overall antifog agent concentration of film is about 1.1 mass %.
(comparative example 13)
As laminate layers (A) resin, use LLDPE (2)；As intermediate layer (B1) resin, LLDPE is used
(2)；As intermediate layer (B2) resin, using LLDPE (1), without antifoggant；, will as hot sealing layer (C) resin
Polypropylene (1) and antifoggant (1) are mixed and used for 20/80 mode in mass ratio.Now the overall antifog agent concentration of film is about
For 1.1 mass %.It is introduced into each extruder, similarly to Example 1 with 250 DEG C of extrusions, occurs significant face coarse
Caused bad order, good film is not obtained.
Following evaluation is carried out for the stacked film obtained by above-described embodiment and comparative example.Obtained result is shown in table
In.Wherein, the content of the gradation composition of each layer is the mass ratio in layer in table.
[the film outward appearance evaluation after aging]
By range estimation, outward appearance of the film through 38 DEG C, the sample of aging in 24 hours extruded by coetrusion by T moulds is carried out
Confirm.
○：Do not find that antifoggant oozes out caused albefaction
×：Because antifoggant oozes out caused albefaction, the transparency deterioration of film
[evaluation of lamination strength]
On the behavior of polyester film and the intermembranous lamination strength obtained by coetrusion, cupping machine (A＆D is used
Co. Ltd. system), state during by following benchmark to being peeled off with 300mm/min speed is evaluated.
○：Confirm, due to maintaining sufficient lamination strength, polyester film with by coetrusion obtain it is intermembranous firmly
Bonding.
×：Confirm, because lamination strength is not enough, polyester film intermembranous is easily peeled off with what is obtained by coetrusion.
[anti-fog effect validation test]
Obtained layered product is implemented after aging in 24 hours under 38 DEG C of environment, cut out as 8cm × 8cm, with adding
The water that 40 DEG C of 30mlInjection vessel (Dong Kwang Co., Ltd's system) heat-sealing after (pressure 64kgf/cup, 160 DEG C of temperature, when
Between 1.0 seconds), using following determinating reference, in low temperature chamber, 3 DEG C are preserved 3 hours, and anti-fog effect is confirmed by estimating.
○：Continuous moisture film is formed on film surface, it is visual good
Δ：Film surface attachment has tiny water droplet, but visual good
×：Water droplet is attached with, visuality deteriorates
[heat-sealing experiment]
Obtained layered product is cut out as 10cm × 5cm, the polypropylene film-making with thickness 0.3mm is using heat cover as polypropylene
The mode of piece side is overlapped, using heat-sealing instrument (the accurate heat sealing machine of detection machine industry (TESTER SANGYO) Co. Ltd. system), with
Regulation to the top of defined temperature seals mode of the bar in the outermost layer side of layered product and is configured, with 0.2MPa, the bar of 1 second
Part is sealed.
[evaluation of peel strength]
Cut out as the sample of the width 15mm short strip shape on the direction vertical with the part through heat-sealing, tension test will be used
Machine (A＆D Co. Ltd. systems) using 300mm/min speed peel off when maximum intensity be used as peel strength.
[table 1]
[table 2]
[table 3]
[table 4]
It was found from above table, the anti-fog properties stacked film of the invention of embodiment 1~12 can be realized suitable anti-fog properties
And peel strength.In addition, with suitable film outward appearance, lamination strength is also suitable for.And the stacked film of comparative example 1~6,9~11 without
Method takes into account suitable anti-fog properties and peel strength.In addition, the stacked film on comparative example 7~8,12~13, stacked film is in itself
Characteristic is poor, it is difficult to actually used.
Claims (13)
1. a kind of anti-fog properties multilayer film, it is characterised in that
It is using straight chain shaped polyethylene a as main component and the laminate layers A without antifoggant, contains straight chain shaped polyethylene b1 and anti-
Mist agent b2 intermediate layer B and hot sealing layer C containing polypropylene-based resin c1 and antifoggant c2 are according to laminate layers A/ intermediate layer B/
The multilayer film that hot sealing layer C order is laminated,
Relative to the gross mass of the multilayer film, total quality using the antifoggant b2 and the antifoggant c2 is 0.8~1.6
Quality % scope contains, and the wetting tension of two outer surfaces of the multilayer film is 35~45mN/m scope, multilayer film
Total thickness be 20~100 μm.
2. anti-fog properties multilayer film according to claim 1, wherein, the intermediate layer B in the anti-fog properties multilayer film is by density
Different layer B1 and layer B2 are formed, according to A/ layers of B1/ layers of B2/ hot sealing layers C of laminate layers order be laminated, and contain in layer B1 it is straight
The density of the straight chain shaped polyethylene contained in the density ratio layer B2 of chain shaped polyethylene is high.
3. anti-fog properties multilayer film according to claim 2, wherein, the density of the straight chain shaped polyethylene contained in the layer B1
For 0.920~0.945g/cm3Scope, the density of the straight chain shaped polyethylene contained in the layer B2 is 0.880~0.920g/
cm3Scope.
4. anti-fog properties multilayer film according to claim 1, wherein, the density of the straight chain shaped polyethylene a for 0.920~
0.945g/cm3Scope.
5. according to anti-fog properties multilayer film according to any one of claims 1 to 4, wherein, the total thickness of the multilayer film for 20~
100 μm of scope.
6. according to anti-fog properties multilayer film according to any one of claims 1 to 4, wherein, relative to the total thickness of the multilayer film,
Intermediate layer B thickness ratio is 35~60% scope, and the thickness ratio of the hot sealing layer C is 8~15% scope.
7. according to anti-fog properties multilayer film according to any one of claims 1 to 4, wherein, the multilayer film passes through coextruded layer
Folded method is manufactured.
8. according to anti-fog properties multilayer film according to any one of claims 1 to 4, wherein, the hot sealing layer C's of the multilayer film is outer
Surface and laminate layers A outer surface have carried out Corona discharge Treatment.
9. according to anti-fog properties multilayer film according to any one of claims 1 to 4, wherein, the antifoggant b2 and described antifog
Agent c2 is nonionic surfactants.
10. a kind of layered product, it is characterised in that by the laminate layers of anti-fog properties multilayer film according to any one of claims 1 to 9
A is laminated with thermoplastic resin film.
11. a kind of packing timber, it is characterised in that the layered product described in usage right requirement 10.
12. packing timber according to claim 11, it is the lid material of food container.
13. packing timber according to claim 12, wherein, the sealing surface of the food container is to contain propylene tree
The resin bed of fat.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-201481 | 2013-09-27 | ||
| JP2013201481 | 2013-09-27 | ||
| PCT/JP2014/075041 WO2015046131A1 (en) | 2013-09-27 | 2014-09-22 | Antifogging multilayer film, laminate using same, and packaging material |
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| Publication Number | Publication Date |
|---|---|
| CN105579231A CN105579231A (en) | 2016-05-11 |
| CN105579231B true CN105579231B (en) | 2017-10-03 |
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| CN201480053406.4A Active CN105579231B (en) | 2013-09-27 | 2014-09-22 | Anti-fog properties multilayer film, layered product and packing timber using it |
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| Country | Link |
|---|---|
| JP (1) | JP5962864B2 (en) |
| KR (1) | KR102161562B1 (en) |
| CN (1) | CN105579231B (en) |
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| WO (1) | WO2015046131A1 (en) |
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| CN106183277A (en) * | 2016-07-18 | 2016-12-07 | 镇江东方红纳米科技有限公司 | A kind of anti-fog thin film |
| JP6972545B2 (en) * | 2016-12-21 | 2021-11-24 | Dic株式会社 | Anti-fog multilayer film, laminates using this, and packaging materials |
| JP7036100B2 (en) * | 2019-10-15 | 2022-03-15 | 住友ベークライト株式会社 | Package |
| CN116580631B (en) * | 2023-05-18 | 2024-05-17 | 广东工业大学 | In-mold label film applied to liquid drop flattening and preparation method and application thereof |
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| JP3908372B2 (en) * | 1998-01-20 | 2007-04-25 | 大日本印刷株式会社 | Polyethylene laminate for laminating |
| JP2001320986A (en) * | 2000-05-12 | 2001-11-20 | Mitsui Chemicals Inc | Antifogging film |
| JP2001334617A (en) | 2000-05-25 | 2001-12-04 | Sekisui Chem Co Ltd | Sealant film for lamination, composite film and composite packaging bag |
| JP4320770B2 (en) | 2002-01-29 | 2009-08-26 | 東洋紡績株式会社 | Vegetable and fruit packaging film and packaging |
| JP4175508B2 (en) * | 2003-07-10 | 2008-11-05 | 東セロ株式会社 | Easy-open laminated film and its use |
| JP4890064B2 (en) | 2006-03-20 | 2012-03-07 | グンゼ株式会社 | Biaxially oriented polypropylene film and packaging bag |
| WO2009148096A1 (en) * | 2008-06-06 | 2009-12-10 | グンゼ株式会社 | Multilayered film with excellent antifogging property |
| DE202010007972U1 (en) * | 2010-07-02 | 2010-12-09 | Kobusch-Sengewald Gmbh | Clear transparent anti-fog multi-layer film |
-
2014
- 2014-09-22 WO PCT/JP2014/075041 patent/WO2015046131A1/en active Application Filing
- 2014-09-22 KR KR1020167003042A patent/KR102161562B1/en active IP Right Grant
- 2014-09-22 JP JP2015539200A patent/JP5962864B2/en active Active
- 2014-09-22 CN CN201480053406.4A patent/CN105579231B/en active Active
- 2014-09-23 TW TW103132711A patent/TWI639508B/en active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3867474B2 (en) * | 2000-04-28 | 2007-01-10 | 大日本インキ化学工業株式会社 | Easy-open composite film and packaging container |
| JP4692818B2 (en) * | 2005-08-05 | 2011-06-01 | Ｄｉｃ株式会社 | Co-extrusion laminated film and laminate film and packaging container using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2015046131A1 (en) | 2017-03-09 |
| KR102161562B1 (en) | 2020-10-05 |
| JP5962864B2 (en) | 2016-08-03 |
| TW201515836A (en) | 2015-05-01 |
| KR20160061308A (en) | 2016-05-31 |
| CN105579231A (en) | 2016-05-11 |
| WO2015046131A1 (en) | 2015-04-02 |
| TWI639508B (en) | 2018-11-01 |
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