CN106273953A - Multi-layer resinous thin film and container molding - Google Patents
Multi-layer resinous thin film and container molding Download PDFInfo
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- CN106273953A CN106273953A CN201510245302.XA CN201510245302A CN106273953A CN 106273953 A CN106273953 A CN 106273953A CN 201510245302 A CN201510245302 A CN 201510245302A CN 106273953 A CN106273953 A CN 106273953A
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- Prior art keywords
- layer
- thin film
- barrier property
- resin bed
- thickness
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Classifications
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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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
-
- 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
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
-
- 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
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/40—Applications of laminates for particular packaging purposes
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
-
- 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
- B32B2307/724—Permeability to gases, adsorption
- B32B2307/7242—Non-permeable
- B32B2307/7244—Oxygen barrier
-
- 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
- B32B2307/724—Permeability to gases, adsorption
- B32B2307/7242—Non-permeable
- B32B2307/7246—Water vapor barrier
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2565/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D2565/38—Packaging materials of special type or form
- B65D2565/381—Details of packaging materials of special type or form
- B65D2565/387—Materials used as gas barriers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention provides a kind of multi-layer resinous thin film, across bonding layer in the both side surface of oxygen-barrier property resin bed, the resin bed being made up of olefine kind resin of water vapor barrier property resin bed it is used as in stacking, and on the water vapor barrier property resin bed of side, the resin bed being made up of styrene resin it is laminated with across bonding layer, the thickness of described water vapor barrier property resin bed adds up to 50～300 μm, described styrene resin layer thickness is 200～900 μm, puts into the OTR oxygen transmission rate difference before and after hot and humid environment and maintains 1.0cc/m2Below day.This multi-layer resinous thin film, has hot formability, oxygen-barrier property and the water vapor barrier property of excellence.
Description
Technical field
The present invention relates to the multi-layer resinous thin film of a kind of high barrier and utilize this thin film to be shaped obtaining
Container molding.
Background technology
The container of tradition refreshment drink, fruit drink, hobby food etc. all uses the thermoforming with excellence
Property and the polystyrene resins of rigidity.In recent years, multi-layer resinous thin film and utilize it to be fabricated by
Laminated vessel is promoted, and this series products is using polystyrene resins layer as outermost layer, and centre is across changing
The bonding layer of property olefine kind resin etc., then arranges ethylene-vinyl alcohol copolymer resin layer, to play obstruct
The effect of oxygen, thus content can be avoided because of oxidation to cause Quality Down (seeing patent documentation 1).
Additionally, disclose a kind of gas barrier thin film in patent documentation 2, its feature is to use containing siliceous
Macromolecule, the gas barrier material of thermoplastic resin, make the glass transition temperature of thermoplastic resin reach 100 DEG C
Above, gas barrier material implementing Plasma inpouring simultaneously and processes, this contains polymeric silicon is polysilazane
Compound, thermoplastic resin is then from the group being made up of polycarbonate resin, cyclenes resin, polysulfone resin
At least one of middle selection.
Additionally, also disclosed one the gas such as oxygen and steam or dampness are had barrier and solvent resistant
The optical resin thin film (seeing patent documentation 3) of property.
Specifically, its feature is, is formed with poly-at least one side surface of optical clear resin film
After silazane inorganic polymer is the coated film of main component, to its process that is heating and curing, so that
It possesses the gas-barrier layer of thickness about 0.02～5 μm.
Generally, when the container of food is preserved in carrying, in order to avoid because of the vibration in carrying and outer
Container itself is caused damage by portion's temperature environment, and in preventing container, food quality reduces simultaneously, meeting in packaging
Stacking loads multiple containers and protects, or carries out by implementing the mode of transport of temperature treatment.Meanwhile,
After carrying, many meetings be taken care of in custodial warehouse with same form temporarily.But can be in view of humidity is also carried out
Packaging or the mode of transport of management are the most considerably less.
On the other hand, for preventing because content oxidation causes the situation of Quality Down to occur, as structure of container
The resin of the oxygen barrier layer of middle setting, due to the impact of humidity so that oxygen barrier layer resin moisture absorption and lead
Cause the problem that its barrier declines.Additionally, same because oxygen barrier layer resin moisture absorption, in hot briquetting be
The moisture absorbed during container can cause bubble to produce, so that granular bubble etc. occurs in the container appearances after molding
The situation of bad order, in some instances it may even be possible to cause the significant problems such as perforation.
Therefore, barrier film described in patent documentation 1-2 and do not take into account above-mentioned carrying with during keeping
Humidity affects, if using the container of this film forming to be placed on for a long time under high humidity environment, possibly cannot tie up
Hold its barrier originally, thus the Quality Down problem caused because of oxidation cannot be prevented, maybe may produce
The situation of above-mentioned bad order.
On the other hand, at the barrier film described in patent documentation 3, it is by the two sides at resin film
Coating has the film of barrier to gas or dampness, prevents due to the humidity shadow of resin film surface one side
Ringing causes the barrier caused by oxygen barrier layer resin moisture absorption to reduce.
But use and there is the resin film of the thinnest film carry out molding when the container of Foods or drinks, by
Carry out deep drawing punch process in typically requiring, its film can be made during deep drawing thermoforming to produce breach and (hold
Oral area).Once there is above-mentioned breach (peristome), oxygen or dampness on the container of so molding will be from
This breach (peristome) invades and causes barrier to reduce.
Patent documentation 1 Japanese Patent Laid-Open 11-58619 publication
Patent documentation 2 pct international patent WO2013175911A1 publication
Patent documentation 3 Japanese Patent Laid-Open 8-169078 publication
Summary of the invention
The present invention is considering the product of exploitation after problem above, it is provided that a kind of high barrier multi-layer resinous
Thin film and utilize the container molding that this film forming manufactures, it is by the two of oxygen-barrier property resin bed
Water vapor barrier property resin bed is constituted so that it is there is oxygen-barrier property and the steam resistance of excellence on side surface
Every property, meanwhile, even if higher oxygen-barrier property also can be maintained under high humidity environment.
The multi-layer resinous thin film of one of the present invention, is on the two sides of oxygen-barrier property resin bed, across joint
Layer stackup has the resin bed being made up of olefin resin as water vapor barrier property resin bed, and at a side surface
Water vapor barrier property resin bed on, be laminated with the resin bed being made up of styrene resin, wherein, described
Water vapor barrier property resin layer thickness adds up to 50～300 μm, and described styrene resin layer thickness is
200～900 μm.
It addition, the multi-layer resinous thin film of above-mentioned composition, it puts into the OTR oxygen transmission rate before and after hot and humid environment
Difference maintains 1.0cc/m2Below day.
Further, the multi-layer resinous thin film of above-mentioned composition, described OTR oxygen transmission rate difference maintains
5.0cc/m2Below day, and its moisture-vapor transmission maintains 3.0g/m2Below day.
Therefore, use the multi-layer resinous thin film of above-mentioned composition, there is oxygen-barrier property and the steam of excellence
Barrier, meanwhile, even if also can maintain higher oxygen-barrier property under high humidity environment.
It addition, in the multi-layer resinous thin film of above-mentioned composition, the thickness of described oxygen-barrier property resin bed sets
In 10～50 μm.When using the multi-layer resinous thin film so constituted to carry out molding, can prevent because of oxygen-barrier property
Resin bed is the thinnest and causes the quality that the oxidation of article causes in container molding to reduce, thus ensures oxygen obstruction
Performance is simultaneously recessed prevented also from the resin produced when causing container formation because oxygen-barrier property resin bed is the thickest
Trace.
It addition, in the multi-layer resinous thin film of above-mentioned composition, the thickness of each bonding layer be set in respectively 10～
50μm.Use the multi-layer resinous thin film so constituted, can prevent from cannot obtaining because bonding layer is the thinnest enough
Interlayer bond strength, simultaneously recessed prevented also from the resin produced when causing container formation because bonding layer is the thickest
Trace.
It addition, in the multi-layer resinous thin film of above-mentioned composition, described styrene resin layer is by containing quality hundred
Proportion by subtraction be 4～8% butadiene rubber composition styrene resin formed.Use the multi-layer resinous of such composition
When thin film carrys out molding, can prevent causing container to have because the amount of butadiene rubber composition is too low enough
Intensity, simultaneously prevented also from when causing use hot plate to carry out thermoforming because the amount of butadiene rubber composition is too high
The unfavorable conditions such as the hot plate adhesion occurred.
Further, in the multi-layer resinous thin film of above-mentioned composition, the thickness of this multi-layer resinous thin film be 500～
1200μm.Use the multi-layer resinous thin film so constituted, can prevent from thin lepthymenia causing because of multi-layer resinous
After thermoforming, vessel strength is inadequate, simultaneously prevented also from thin during the thermoforming caused because multi-layer resinous thin film is blocked up
Film thickness direction is difficult to fully conduct heat, consequently, it is possible to occur the manufacturing cost of forming defect and container to become
High.
The present invention also provides for the container molding of a kind of multi-layer resinous film forming using above-mentioned composition.Such
The container molding arrived, owing to having oxygen-barrier property and the water vapor barrier property of excellence, meanwhile, even if
Also higher oxygen-barrier property can be maintained under high humidity environment, it is therefore possible to prevent because of article in container molding
The quality aoxidized and cause reduces, and the mouldability of container molding is the most fine simultaneously.
Accompanying drawing explanation
Fig. 1 is longitudinal section view signal of the stepped construction of the multi-layer resinous thin film representing one embodiment of the invention
Figure.
Fig. 2 is longitudinal cross-sectional schematic of the stepped construction of the multi-layer resinous thin film representing another embodiment.
Fig. 3 is the schematic perspective view of the container molding representing one embodiment of the invention.
Detailed description of the invention
Hereinafter, with regard to one embodiment of the invention multi-layer resinous thin film structure and by this multi-layer resinous thin film become
The container molding that type is made is described in detail.
As it is shown in figure 1, the multi-layer resinous thin film of one embodiment of the invention, its structure is in oxygen-barrier property tree
The two sides of lipid layer 12, respectively across bonding layer 11a, 11b, is laminated with the vapor water barriers as top layer
Property resin bed 10a and the water vapor barrier property resin bed 10b as intermediate layer, in water vapor barrier property tree
It is laminated with the styrene resin layer 13 as substrate layer across bonding layer 11c in lipid layer 10b.Top layer and
The thickness total of water vapor barrier property resin bed 10a, the 10b in intermediate layer is set as 50～300 μm, and base
The thickness of the styrene resin layer 13 of sheet material layers is set as 200～900 μm.
As the olefine kind resin used by described water vapor barrier property resin bed 10a, 10b, including but do not limit
In ethylene, propylene, n-butene etc. containing carbon number 2～about 8 alkene homopolymer.Water vapor barrier property
Resin bed 10a, 10b are formed as top layer and the intermediate layer of multi-layer resinous thin film, unless otherwise noted,
Top layer is set as the layer contacted with content, but and is not specially limited.
As the water vapor barrier property resin bed 10a on top layer, its thickness is set as and the water as intermediate layer
Resin bed 10b is identical for vapor barrier properties, or is set as being used for the water vapor barrier property resin bed 10b in intermediate layer
Thick.It addition, the thickness of the water vapor barrier property resin bed 10b in intermediate layer is set in more than 200 μm,
Top layer is set in 50～300 μm with the thickness total of water vapor barrier property resin bed 10a, the 10b in intermediate layer
(preferably 70～200 μm).If this thickness is less than 50 μm, there will be thickness after molding the thinnest
Part, thus water vapor barrier property cannot be given full play to, if it addition, this thickness adds up to more than 300 μm, then
Optimum temperature range during thermoforming will reduce, consequently, it is possible to cannot be carried out stable molding.
It is advisable with modified olefine polymer as the resin constituting bonding layer 11a, 11b, 11c.As composition
The representative substances of the modified olefine polymer of bonding layer can be enumerated more following: i.e., ethylene, propylene,
N-butene etc. containing carbon number 2～about 8 olefin homo；And these alkene and ethylene, propylene, just
Butylene, iso-amylene, n-pentene, 4-methylpentene-1,1-hexene, 1-octene, positive decene etc. exist containing carbon number
Other alkene of 2～about 20 or vinyl acetate, vinyl chloride, acrylic acid, 2-methacrylic acid, propylene
The olefine kind resin of the copolymer etc. of the vinyl compounds such as acid esters, methyl methacrylate, styrene；Or will
Ethylene-propylene copolymer, ethylene-propylene-diene terpolymer, ethylene-butene-1 copolymer, propylene-1-butylene
The olefinic rubbers such as copolymer by with acrylic acid, methacrylic acid .beta.-methylacrylic acid, iso-crotonic acid, maleic acid,
The unsaturated carboxylic acids such as fumaric acid, itaconic acid, citraconic acid, tetrahydrophthalic acid or carboxylic acid halide,
The derivants such as amide, acid imide, anhydride, ester (specifically have malonyl chloride, maleimide, anhydrous horse
Come citraconic acid sour, anhydrous, monomethyl maleate, dimethyl maleate, maleic acid ethylene oxidic ester etc.)
Modified and the material that obtains under the conditions of graft reaction.
As modified olefine polymer, then with unsaturated carboxylic acid or its anhydride, particularly maleic acid or its
Vinyl resins, propylene resin, ethylene-propylene or the n-butene copolymer that anhydride is modified
Rubber is advisable.
Bonding layer 11a, 11b, the 11c being made up of modified olefine polymer, its thickness be respectively set as 10～
50 μm (preferably 20～40 μm).If this thickness is less than 10 μm, then possibly cannot obtain enough layers
Between bond strength, if additionally, this thickness is more than 50 μm, then may occur when the punching press of thermoformed containers
Resin indenture.
As constitute oxygen-barrier property resin bed 12 oxygen-barrier property resin, its representative substances include but
It is not limited to ethylene-vinyl alcohol copolymer resin, polyamide etc..Wherein, from processability and mouldability side
Face considers, is advisable with ethylene-vinyl alcohol copolymer resin.
Ethylene-vinyl alcohol copolymer resin is typically the thing that will obtain after ethene-vinyl acetate copolymer saponification
Matter, for making it have both oxygen-barrier property, processability, mouldability, ethylene contents should be (excellent 10～65mol%
Elect 20～50mol% as), and saponification degree should be more than 90% (preferably more than 95%).
Additionally, as polyamide can enumerate following these: i.e., caprolactam, azacyclotridecane
The lactam polymer of-2-ketone etc.；6-aminocaprolc acid, 11-aminoundecanoic acid, 12-aminolauric acid etc.
Amino-acid ester polymer；1,6-hexane diamidogen, 1,10-diamino decane, dodecane diamine, 2,2,4-
Or 2, the aliphatic diamine of 4,4-trimethylhexane diamine etc., 1,3-or Isosorbide-5-Nitrae-bis-(amino methyl) hexamethylene, 4,4'-
The aliphatic cyclic amine of diamino-dicyclohexyl methane etc., the aromatic diamine such as m-xylene diamine or p dimethylamine etc.
Diamidogen unit, with the fat of the aliphatic carboxylic acid of adipic acid, suberic acid, decanedioic acid etc., cyclohexane cyclohexanedimethanodibasic etc.
The condensation polymer that the carboxylic acid units of the aromatic carboxylic acids etc. such as ring carboxylic acid, p-phthalic acid, isophathalic acid is formed；And
The copolymer etc. of above-mentioned substance.
As polyamide, specifically there are nylon 6, nylon 9, nylon 11, nylon 12, nylon66 fiber, Buddhist nun
Dragon 610, nylon 611, nylon 612, nylon 6T, nylon 6I, nylon MXD 6, nylon 6/66, nylon
6/610, nylon 6/6T, nylon 6I/6T etc., wherein nylon 6, nylon MXD 6 are optimal.
The thickness of oxygen-barrier property resin bed 12, is set in 10～50 μm (preferably 20～40 μm).
If this thickness is less than 10 μm, then may be unable to reach and prevent container molding content from causing quality to drop because of oxidation
Low oxygen barrier property, if additionally, this thickness is more than 50 μm, then may be in the punching press of thermoformed containers
Shi Fasheng resin indenture.
As constitute styrene resin layer 13 styrene resin can enumerate following these: i.e., benzene
Ethylene, 2-phenyl-1-propylene, 4-methyl styrene, dimethyl styrene, p-tert-butylstyrene, chlorine
The homopolymer of the styrene monomers such as styrene or copolymer；Such as SAN (AS resin)
Deng the copolymer of these styrene monomers Yu other monomers, or foregoing styrene monomer is polymerized with other
, such as, there is polybutadiene, polystyrenebutadienes copolymer, polyisoprene, polychlorobutadiene in thing
Deng carrying out the graft polymers of glycerol polymerization in the case of polydiene polymer, such as high-impact polyphenyl second
Alkene (HIPS resin), styrene-acrylonitrile graft polymer (ABS resin) etc..
If from the point of view of rigidity, mouldability angle, in styrene resin with polystyrene (GPPS resin),
High impact polystyrene (HIPS resin) is advisable.
Styrene resin, being advisable in 4～8% containing mass percent with butadiene rubber composition.Along fourth rubber
Glue component content can be adjusted by the straightforward procedure of mixing GPPS with HIPS, but also can manufacture HIPS
Stage be adjusted.If above-mentioned mass percent is less than 4%, then may be unable to reach enough vessel strengths,
If above-mentioned mass percent is more than 8%, then it is particularly likely to when using hot plate to carry out thermoforming occur hot plate to adhere to
Etc. unfavorable condition.
Described styrene resin layer 13 can not hinder interpolation in the range of effect of the present invention as required
The coloring agent such as pigment, dyestuff, silicone oil or alkyl esters releasing agent, fibee reinforced dose of glass fibre etc. is sliding
The band such as the salt compound of stone, Kaolin, cristobalite equigranular lubricant, sulfonic acid and alkali metal etc. or polyglycols
Electricity preventing agent, the additive such as UV absorbent and antibacterial.Simultaneously, it is possible to be used in mixed way the present invention many
The waste material resin produced in the manufacturing process of layer resin film and container molding.
The thickness of described styrene resin layer 13, be set as 200～900 μm (preferably 300～
700μm).If this thickness is less than 200 μm, then after may causing molding, container each several part is unable to reach equalization
Thickness, and it is unable to reach the hot formability of excellence, meanwhile, if this thickness is more than 900 μm, then during thermoforming
Film thickness direction is difficult to fully conduct heat, consequently, it is possible to there is forming defect.
Therefore, in one embodiment of the invention, the Rotating fields of multi-layer resinous thin film is as it was previously stated, hinder for steam
Every property resin bed/bonding layer/oxygen-barrier property resin bed/bonding layer/water vapor barrier property resin bed/bonding layer
The structure of/styrene resin layer, be in simple terms top layer/bonding layer/oxygen barrier layer/bonding layer/in
Interbed/bonding layer/substrate layer.Meanwhile, also can be by being mixed with as the substrate layer being made up of styrene resin
The multi-layer resinous thin film of the present invention, or in container molding manufacturing process produce waste material resin constitute layer with only
The layer having styrene resin carries out stacking and constitutes.
The thickness of the multi-layer resinous thin film of the present invention, be set as 500～1200 μm (preferably 700～
1000μm).If this thickness is less than 500 μm, then after may causing thermoforming, vessel strength is inadequate, if should
Thickness is more than 1200 μm, then during thermoforming, film thickness direction is difficult to fully conduct heat, consequently, it is possible to send out
Raw forming defect.Meanwhile, the manufacturing cost of container may uprise.
As the forming method of the multi-layer resinous thin film of the present invention, it is not particularly limited, conventional method can be used.
Such as, use 4 or more single axle extruding machine, melt extrude each material resin, and pass through feed block
(Feed-block) method obtaining multi-layer resinous thin film with T-shaped mouth die, or obtained by multichannel die
The method etc. of multi-layer resinous thin film.
The container molding 20 of one embodiment of the invention, as it is shown on figure 3, be by the multi-layer resinous thin film of the present invention
Thermoforming processes.As the method for thermoforming, common vacuum forming, pressure forming can be enumerated,
Or make the plunger pressing aid method that the one side of plunger contact thin film is shaped, or make a pair feature die contact thin film two
Face is shaped, and is i.e. referred to as the forming method etc. of matched-mold forming.But method is not limited only to this.Meanwhile, make
For the method before the forming film heating softened, can use and carry out radiation heating by infrared heater
Noncontact is heated, or directly makes thin film and carry out contacting the hot plate heating etc. making it soften with the hot plate heated
Well-known film heating mode.
It addition, forming temperature during thermoforming, the situation such as fusing point that can consider resin is rationally arranged, but
The too low meeting of film heating temperature causes the figuration state of container after hot briquetting insufficient, if film heating temperature
Too high, can cause being attached to the first-class unfavorable condition of hot plate, it is therefore desirable to be set to preference temperature.
Hereinafter will enumerate embodiment and comparative example, further the present invention is specifically described, but this
Bright it is not limited in the range of the contents such as embodiment.
The resin raw material used in embodiment is as follows.
(1) water vapor barrier property resin bed
HDPE resin: " 8050 " (Tai Su company produces, MI:6.0g/10min. (190 DEG C, 2.16kgf))
PP resin: " HJ730L " (Samsung Total company produces, MI:5.0g/10min (190 DEG C,
2.16kgf), IsotacticHomoPP)
(2) oxygen-barrier property resin bed
Ethylene-vinyl alcohol copolymer (EVOH) " EVAL J171B "
(Kuraray company produces, MI:1.7g/10min (190 DEG C, 2.16kgf), second
Alkene content 32mol%)
(3) bonding layer
Modified olefine polymer (modified PO) " MODIC F502C "
(Mitsubishi Chemical Ind produces, MI:1.3g/10min (190 DEG C, 2.16kgf)))
(4) styrene resin layer
HIPS resin: " 4241 " (Total Petrochemicals company produces, MI:4.0g/10min.
(200 DEG C, 5.0kgf))
It addition, in an embodiment, the hot briquetting under the following conditions of multi-layer resinous thin film, obtain shown in Fig. 3
Yoghourt container.
(1) equipment is used: the Vacuum Pressure sky forming machine that shallow wild institute produces
(2) heater: contactless far-infrared heater
(3) film surface temperature: be adjusted to suitable film surface temperature according to the composition of thin film
To the multi-layer resinous thin film obtained and container, following methods is used to be evaluated.Evaluation result represents
In table 1 and table 2.
(1) moisture-vapor transmission measures
By the following method the moisture-vapor transmission of thin film is measured.
[assay method] is according to GB/T 1037 standard
Use equipment: the W3/031 that Labthink company produces detects device
Condition determination: 40 DEG C × 90%R.H.
It addition, use following standard that moisture-vapor transmission is evaluated.
If moisture-vapor transmission is at 3.0g/m2Below day, then the water vapor barrier property of multi-layer resinous thin film
Qualified, moisture-vapor transmission is higher than 3.0g/m2During day, the water vapor barrier property of the most multi-layer resinous thin film is not
Qualified.
(2) OTR oxygen transmission rate measures
By the following method the OTR oxygen transmission rate of thin film is measured.To being positioned over following hot and humid environment
OTR oxygen transmission rate before and after in is measured.
[assay method] is according to GB/T 1038 standard
Use equipment: the VAC-V1 that Labthink company produces detects device
Condition determination: 23 DEG C × 65%R.H.
Sample is arranged: in view of the practicality after container formation, when arranging sample, it is ensured that towards making oxygen
Gas passes through from the substrate layer side of film sample.
[putting into hot and humid environment]
Paste aluminum adhesive tape in thin film end, eliminate because of the impact of thin film end vapor permeation, and in end
Under the state that cannot contact hot and humid environment, place 6 hours under 40 DEG C × 90%R.H. environment.To putting
It is placed in the OTR oxygen transmission rate before and after this environment to be measured.
It addition, use following standard that OTR oxygen transmission rate is evaluated.
If OTR oxygen transmission rate is at 5.0cc/m2Below day, then the oxygen-barrier property of multi-layer resinous thin film closes
Lattice, OTR oxygen transmission rate is higher than 5.0cc/m2During day, the oxygen-barrier property of the most multi-layer resinous thin film is defective.
It addition, use following standard that the OTR oxygen transmission rate difference put into before and after hot and humid environment is commented
Valency.
If the OTR oxygen transmission rate difference before and after putting into hot and humid environment is at 1.0cc/m2Below day, then
The oxygen-barrier property of multi-layer resinous thin film is qualified, puts into the OTR oxygen transmission rate difference before and after hot and humid environment high
In 1.0cc/m2During day, the oxygen-barrier property of the most multi-layer resinous thin film is defective.
(3) mouldability
Use the mould of container shown in molding Fig. 3, by following standard, mouldability during thermoforming is entered
Row assessment.
A: good forming ability
B: after molding, the partial portion of container exists the situation of thinner thickness
C: do not obtain the plastic property such as mould.Or find molded appearance defect.
＜ embodiment 1 ＞
Use 3 45mm single axle extruding machines, 1 65mm single axle extruding machine, 1 105mm single shaft extrusion
Machine, by feed block (Feed-block) method, uses HDPE resin " 8050 " in olefine kind resin,
Obtain having water vapor barrier property resin bed 10a be 100 μm/bonding layer 11a be 15 μm/oxygen-barrier property
Resin bed 12 be 40 μm/bonding layer 11b be 15 μm/water vapor barrier property resin bed 10b be 35 μm/
Bonding layer 11c be 15 μm/styrene resin layer 13 be the Rotating fields of 880 μm, gross thickness is 1100 μm
The multi-layer resinous thin film of (water vapor barrier property resin bed aggregate thickness is 135 μm).
For multi-layer resinous thin film obtained above, carry out the result of moisture-vapor transmission mensuration, such as table 1 institute
Showing, its moisture-vapor transmission is 0.8g/m2·day.It addition, it is carried out the result of OTR oxygen transmission rate mensuration,
As shown in table 1, the OTR oxygen transmission rate before it puts into hot and humid environment is 0.12cc/m2Day, it is put into
OTR oxygen transmission rate after hot and humid environment is 0.32cc/m2Day, before and after it puts into hot and humid environment
OTR oxygen transmission rate difference is 0.20cc/m2·day.It addition, to the container using this multi-layer resinous film forming
Mouldability be also carried out evaluate, its mouldability is be evaluated as A.
＜ embodiment 2 ＞
Method similarly to Example 1, obtaining having water vapor barrier property resin bed 10a is 80 μm/joint
Layer 11a be 15 μm/oxygen-barrier property resin bed 12 be 40 μm/bonding layer 11b be the resistances of 15 μm/steam
Every property resin bed 10b be 35 μm/bonding layer 11c be 15 μm/styrene resin layer 13 be 900 μm
Rotating fields, gross thickness is that 1100 μm (water vapor barrier property resin bed aggregate thickness is 115 μm) are many
Layer resin film.
For multi-layer resinous thin film obtained above, carry out the result of moisture-vapor transmission mensuration, such as table 1 institute
Showing, its moisture-vapor transmission is 1.1g/m2·day.It addition, it is carried out the result of OTR oxygen transmission rate mensuration,
As shown in table 1, the OTR oxygen transmission rate before it puts into hot and humid environment is 0.21cc/m2Day, it is put into
OTR oxygen transmission rate after hot and humid environment is 0.35cc/m2Day, before and after it puts into hot and humid environment
OTR oxygen transmission rate difference is 0.14cc/m2·day.It addition, to the container using this multi-layer resinous film forming
Mouldability be also carried out evaluate, its mouldability is be evaluated as A.
＜ embodiment 3 ＞
Method similarly to Example 1, obtaining having water vapor barrier property resin bed 10a is 65 μm/joint
Layer 11a be 15 μm/oxygen-barrier property resin bed 12 be 30 μm/bonding layer 11b be 15 μm/steam
Barrier resin layer 10b be 20 μm/bonding layer 11c be 15 μm/styrene resin layer 13 be 740 μm
Rotating fields, gross thickness is the multilamellar of 900 μm (water vapor barrier property resin bed aggregate thickness is 85 μm)
Resin film.
For multi-layer resinous thin film obtained above, carry out the result of moisture-vapor transmission mensuration, such as table 1 institute
Showing, its moisture-vapor transmission is 1.1g/m2·day.It addition, it is carried out the result of OTR oxygen transmission rate mensuration,
As shown in table 1, the OTR oxygen transmission rate before it puts into hot and humid environment is 0.22cc/m2Day, it is put into
OTR oxygen transmission rate after hot and humid environment is 0.52cc/m2Day, before and after it puts into hot and humid environment
OTR oxygen transmission rate difference is 0.30cc/m2·day.It addition, to the container using this multi-layer resinous film forming
Mouldability be also carried out evaluate, its mouldability is be evaluated as A.
＜ embodiment 4 ＞
Method similarly to Example 1, obtaining having water vapor barrier property resin bed 10a is 80 μm/joint
Layer 11a be 15 μm/oxygen-barrier property resin bed 12 be 40 μm/bonding layer 11b be the resistances of 15 μm/steam
Every property resin bed 10b be 35 μm/bonding layer 11c be 15 μm/styrene resin layer 13 be 200 μm
Rotating fields, gross thickness is that 400 μm (water vapor barrier property resin bed aggregate thickness is 115 μm) are many
Layer resin film.
For multi-layer resinous thin film obtained above, carry out the result of moisture-vapor transmission mensuration, such as table 1 institute
Showing, its moisture-vapor transmission is 1.0g/m2·day.It addition, it is carried out the result of OTR oxygen transmission rate mensuration,
As shown in table 1, the OTR oxygen transmission rate before it puts into hot and humid environment is 0.18cc/m2Day, it is put
Entering the OTR oxygen transmission rate after hot and humid environment is 0.30cc/m2Day, before it puts into hot and humid environment
After OTR oxygen transmission rate difference be 0.12cc/m2·day.It addition, to using this multi-layer resinous film forming
The mouldability of container be also carried out evaluating, its mouldability is be evaluated as A.
＜ embodiment 5 ＞
Method similarly to Example 1, obtaining having water vapor barrier property resin bed 10a is 30 μm/joint
Layer 11a be 15 μm/oxygen-barrier property resin bed 12 be 30 μm/bonding layer 11b be the resistances of 15 μm/steam
Every property resin bed 10b be 20 μm/bonding layer 11c be 15 μm/styrene resin layer 13 be 775 μm
Rotating fields, gross thickness is the multilamellar of 900 μm (water vapor barrier property resin bed aggregate thickness is 50 μm)
Resin film.
For multi-layer resinous thin film obtained above, carry out the result of moisture-vapor transmission mensuration, such as table 1 institute
Showing, its moisture-vapor transmission is 1.5g/m2·day.It addition, it is carried out the knot of OTR oxygen transmission rate mensuration
Really, as shown in table 1, the OTR oxygen transmission rate before it puts into hot and humid environment is 0.22cc/m2Day,
It puts into the OTR oxygen transmission rate after hot and humid environment is 0.58cc/m2Day, it puts into hot and humid ring
OTR oxygen transmission rate difference before and after border is 0.36cc/m2·day.It addition, to using this multi-layer resinous thin film
The mouldability of the container of molding has been also carried out evaluating, and its mouldability is be evaluated as A.
＜ embodiment 6 ＞
Method similarly to Example 1, obtaining having water vapor barrier property resin bed 10a is 200 μm/connect
Close layer 11a be 15 μm/oxygen-barrier property resin bed 12 be 40 μm/bonding layer 11b be 15 μm/steam
Barrier resin layer 10b be 100 μm/bonding layer 11c be 15 μm/styrene resin layer 13 be 715 μm
Rotating fields, gross thickness is that 1100 μm (water vapor barrier property resin bed aggregate thickness is 300 μm) are many
Layer resin film.
For multi-layer resinous thin film obtained above, carry out the result of moisture-vapor transmission mensuration, such as table 1 institute
Showing, its moisture-vapor transmission is 0.8g/m2·day.It addition, it is carried out the knot of OTR oxygen transmission rate mensuration
Really, as shown in table 1, the OTR oxygen transmission rate before it puts into hot and humid environment is 0.11cc/m2Day,
It puts into the OTR oxygen transmission rate after hot and humid environment is 0.23cc/m2Day, it puts into hot and humid ring
OTR oxygen transmission rate difference before and after border is 0.12cc/m2·day.It addition, to using this multi-layer resinous thin film
The mouldability of the container of molding has been also carried out evaluating, and its mouldability is be evaluated as A.
＜ embodiment 7 ＞
Olefine kind resin uses PP resin " HJ730L ", and additive method is same as in Example 1.Obtain layer
The multi-layer resinous thin film that structure is same as in Example 1.
For multi-layer resinous thin film obtained above, carry out the result of moisture-vapor transmission mensuration, such as table 1 institute
Showing, its moisture-vapor transmission is 0.6g/m2·day.It addition, it is carried out the knot of OTR oxygen transmission rate mensuration
Really, as shown in table 1, the OTR oxygen transmission rate before it puts into hot and humid environment is 0.15cc/m2Day,
It puts into the OTR oxygen transmission rate after hot and humid environment is 0.18cc/m2Day, it puts into hot and humid ring
OTR oxygen transmission rate difference before and after border is 0.03cc/m2·day.It addition, to using this multi-layer resinous thin film
The mouldability of the container of molding has been also carried out evaluating, and its mouldability is be evaluated as A.
On the other hand, compared with Example 1, using the aggregate thickness of water vapor barrier property resin bed or as base
The thickness of the styrene resin layer of sheet material layers diminishes, or forms vapor water barriers layer with styrene resin layer
Deng variation as comparative example, respectively its performance has been carried out following evaluation.
＜ comparative example 1 ＞
Method similarly to Example 1, obtaining having water vapor barrier property resin bed 10a is 30 μm/joint
Layer 11a be 15 μm/oxygen-barrier property resin bed 12 be 40 μm/bonding layer 11b be the resistances of 15 μm/steam
Every property resin bed 10b be 100 μm/bonding layer 11c be 15 μm/styrene resin layer 13 be 975 μm
Rotating fields, gross thickness is that 1100 μm (water vapor barrier property resin bed aggregate thickness is 40 μm) are many
Layer resin film.
Compared with Example 1, this comparative example is characterised by diminishing the aggregate thickness of olefine kind resin layer.
For the multi-layer resinous thin film obtained by this comparative example, carry out the result of moisture-vapor transmission mensuration, as
Shown in table 2, its moisture-vapor transmission is 0.8g/m2·day.It addition, it is carried out OTR oxygen transmission rate survey
Fixed result, as shown in table 2, it puts into the OTR oxygen transmission rate before hot and humid environment is 0.26cc/
m2Day, it puts into the OTR oxygen transmission rate after hot and humid environment is 1.68cc/m2Day, it puts into height
OTR oxygen transmission rate difference before and after temperature high humidity environment is 1.42cc/m2·day.It addition, to using this multilamellar
The mouldability of the container of resin film molding has been also carried out evaluating, and its mouldability is be evaluated as A.
The result compareed with each evaluation criterion, it is put into the OTR oxygen transmission rate difference before and after hot and humid environment and surpasses
Cross 1.0cc/m2Day, the most defective, i.e. it is not applied for hot and humid environment.
＜ comparative example 2 ＞
Method similarly to Example 1, obtaining having water vapor barrier property resin bed 10a is 100 μm/connect
Close layer 11a be 15 μm/oxygen-barrier property resin bed 12 be 40 μm/bonding layer 11b be 15 μm/steam
Barrier resin layer 10b be 35 μm/bonding layer 11c be 15 μm/styrene resin layer 13 be 180 μm
Rotating fields, gross thickness is that 400 μm (water vapor barrier property resin bed aggregate thickness is 135 μm) are many
Layer resin film.
Compared with Example 1, this comparative example is characterised by the styrene resin layer as substrate layer
Thickness diminishes.
For the multi-layer resinous thin film obtained by this comparative example, carry out the result of moisture-vapor transmission mensuration, as
Shown in table 2, its moisture-vapor transmission is 1.1g/m2·day.It addition, it is carried out OTR oxygen transmission rate survey
Fixed result, as shown in table 2, it puts into the OTR oxygen transmission rate before hot and humid environment is 0.25cc/
m2Day, it puts into the OTR oxygen transmission rate after hot and humid environment is 0.43cc/m2Day, it puts into height
OTR oxygen transmission rate difference before and after temperature high humidity environment is 0.18cc/m2·day.It addition, to using this multilamellar
The mouldability of the container of resin film molding has been also carried out evaluating, and its mouldability is be evaluated as B.
The result compareed with each evaluation criterion, its mouldability is be evaluated as B, in using, after meeting is because of molding
The local cracking that container thickness is relatively thin, thus steam or oxygen easily invade and cause barrier to reduce.
＜ comparative example 3 ＞
Method similarly to Example 1, obtaining having styrene resin layer 10a is 65 μm/bonding layer
11a be 15 μm/oxygen-barrier property resin bed 12 be 30 μm/bonding layer 11b be 15 μm/phenylethylene tree
Lipid layer 10b be 20 μm/bonding layer 11c be 15 μm/styrene resin layer 13 be 740 μm layer knot
Structure, gross thickness is the multi-layer resinous thin film of 900 μm.
Compared with Example 1, this comparative example is characterised by that vapor water barriers layer is to use styrene resin layer
Formed.
For the multi-layer resinous thin film obtained by this comparative example, carry out the result of moisture-vapor transmission mensuration, as
Shown in table 2, its moisture-vapor transmission is 4.5g/m2·day.It addition, it is carried out OTR oxygen transmission rate survey
Fixed result, as shown in table 2, it puts into the OTR oxygen transmission rate before hot and humid environment is 0.22cc/
m2Day, it puts into the OTR oxygen transmission rate after hot and humid environment is 2.56cc/m2Day, it puts into height
OTR oxygen transmission rate difference before and after temperature high humidity environment is 2.34cc/m2·day.It addition, to using this multilamellar
The mouldability of the container of resin film molding has been also carried out evaluating, and its mouldability is be evaluated as A.
The result compareed with each evaluation criterion, its moisture-vapor transmission is more than 3.0g/m2Day, and
It puts into the OTR oxygen transmission rate difference before and after hot and humid environment more than 1.0cc/m2Day, the most defective,
I.e. it is not applied for hot and humid environment.
＜ comparative example 4 ＞
As in figure 2 it is shown, method similarly to Example 1, obtain that there is water vapor barrier property resin bed 10a
Be 90 μm/bonding layer 11a be 15 μm/oxygen-barrier property resin bed 12 be that 30 μm/bonding layer 11b is
15 μm/styrene resin layer 13 is the Rotating fields of 750 μm, and gross thickness is 900 μm (vapor water barriers
Property resin bed aggregate thickness is 90 μm) multi-layer resinous thin film.
Compared with Example 1, this comparative example be characterised by only oxygen-barrier property resin bed one side across
Bonding layer is laminated with the olefine kind resin layer as water vapor barrier property resin bed.
For the multi-layer resinous thin film obtained by this comparative example, carry out the result of moisture-vapor transmission mensuration, as
Shown in table 2, its moisture-vapor transmission is 1.2g/m2·day.It addition, it is carried out OTR oxygen transmission rate survey
Fixed result, as shown in table 2, it puts into the OTR oxygen transmission rate before hot and humid environment is 0.19cc/
m2Day, it puts into the OTR oxygen transmission rate after hot and humid environment is 1.45cc/m2Day, it puts into height
OTR oxygen transmission rate difference before and after temperature high humidity environment is 1.26cc/m2·day.It addition, to using this multilamellar
The mouldability of the container of resin film molding has been also carried out evaluating, and its mouldability is be evaluated as A.
The result compareed with each evaluation criterion, it puts into the OTR oxygen transmission rate difference before and after hot and humid environment
More than 1.0cc/m2Day, the most defective, i.e. it is not applied for hot and humid environment.
＜ comparative example 5 ＞
Method similarly to Example 1, obtains the resin that only styrene resin layer monolayer is 900 μm
Thin film.
Compared with Example 1, this comparative example is characterised by only being made up of the monolayer of styrene resin layer.
For the multi-layer resinous thin film obtained by this comparative example, carry out the result of moisture-vapor transmission mensuration, as
Shown in table 2, its moisture-vapor transmission is 6.5g/m2·day.It addition, it is carried out OTR oxygen transmission rate survey
Fixed result, as shown in table 2, it puts into the OTR oxygen transmission rate before hot and humid environment is 335cc/m2Day,
It puts into the OTR oxygen transmission rate after hot and humid environment is 357cc/m2Day, it puts into hot and humid environment
OTR oxygen transmission rate difference front and back is 22cc/m2·day.It addition, to using this multi-layer resinous film forming
The mouldability of container be also carried out evaluating, its mouldability is be evaluated as A.
The result compareed with each evaluation criterion, its moisture-vapor transmission is more than 3.0g/m2Day, its oxygen
Vapor permeability substantially exceeds 5.0cc/m2Day, and its oxygen put into before and after hot and humid environment passes through
Rate difference is more than 1.0cc/m2Day, the most defective, i.e. it is not applied for hot and humid environment, and
Under general environment to the barrier of steam and oxygen also almost without.
Table 1
Table 2
According to above-described embodiment 1-7 and the result of comparative example 1-5, have at the two of oxygen-barrier property resin bed
On side surface, in bonding layer stacking, it is used as being made up of olefine kind resin of water vapor barrier property resin bed
Resin bed, and on the olefine kind resin layer surface of side, the resin bed that stacking is made up of styrene resin,
Thickness at the water vapor barrier property resin bed of the both sides stacking of oxygen-barrier property resin bed add up to 50～
300 μm, and the multi-layer resinous thin film that described styrene resin layer thickness is 200～900 these spline structures of μm,
There is the barrier higher to steam and oxygen, use multi-layer resinous thin film to be shaped container simultaneously
During molding, its mouldability is the most fine.
And, there is the multi-layer resinous thin film of said structure, its oxygen put into before and after hot and humid environment is saturating
Cross that rate variance is different maintains 1.0cc/m2Below day.
And, there is the multi-layer resinous thin film of said structure, its OTR oxygen transmission rate maintains 5.0cc/m2·day
Hereinafter, its moisture-vapor transmission maintains 3.0g/m2Below day.
Therefore, there is the multi-layer resinous thin film of said structure, possess oxygen-barrier property and the steam resistance of excellence
Every property, even if higher oxygen-barrier property also can be maintained under high humidity environment.
It addition, have the multi-layer resinous thin film of said structure, the thickness of described oxygen-barrier property resin bed sets
In 10～50 μm.When using the multi-layer resinous thin film so constituted to carry out molding, can prevent because of oxygen-barrier property
Resin bed is the thinnest and causes the quality that the oxidation of article causes in container molding to reduce, thus ensures oxygen obstruction
Performance is simultaneously recessed prevented also from the resin produced when causing container formation because oxygen-barrier property resin bed is the thickest
Trace.
It addition, in the multi-layer resinous thin film of above-mentioned composition, the thickness of each bonding layer be set in respectively 10～
50μm.Use the multi-layer resinous thin film so constituted, can prevent from cannot obtaining because bonding layer is the thinnest enough
Interlayer bond strength, simultaneously recessed prevented also from the resin produced when causing container formation because bonding layer is the thickest
Trace.
It addition, in the multi-layer resinous thin film of above-mentioned composition, described styrene resin layer is by containing quality hundred
Proportion by subtraction be 4～8% butadiene rubber composition styrene resin formed.Use the multi-layer resinous of such composition
When thin film carrys out molding, can prevent causing container to have because the amount of butadiene rubber composition is too low enough
Intensity, simultaneously prevented also from when causing use hot plate to carry out thermoforming because the amount of butadiene rubber composition is too high
The unfavorable conditions such as the hot plate adhesion occurred.
Further, in the multi-layer resinous thin film of above-mentioned composition, the thickness of this multi-layer resinous thin film be 500～
1200μm.Use the multi-layer resinous thin film so constituted, can prevent from thin lepthymenia causing because of multi-layer resinous
After thermoforming, vessel strength is inadequate, simultaneously prevented also from thin during the thermoforming caused because multi-layer resinous thin film is blocked up
Film thickness direction is difficult to fully conduct heat, consequently, it is possible to occur the manufacturing cost of forming defect and container to become
High.
Claims (8)
1. a multi-layer resinous thin film, across bonding layer on the two sides of oxygen-barrier property resin bed, is laminated with
Water vapor barrier property resin bed, and on the water vapor barrier property resin bed of side, it is laminated with phenylethylene tree
Lipid layer, it is characterised in that described water vapor barrier property resin bed is the layer being made up of olefine kind resin, at it
The thickness of the water vapor barrier property resin bed of the two sides stacking of oxygen-barrier property resin bed add up to 50～
300 μm, described styrene resin layer thickness is 200～900 μm.
Multi-layer resinous thin film the most according to claim 1, it is characterised in that described multi-layer resinous thin film,
Its OTR oxygen transmission rate difference put into before and after hot and humid environment maintains 1.0cc/m2Below day.
Multi-layer resinous thin film the most according to claim 1 and 2, it is characterised in that described multi-layer resinous
Thin film, its OTR oxygen transmission rate maintains 5.0cc/m2Below day, and its moisture-vapor transmission maintains
3.0g/m2Below day.
Multi-layer resinous thin film the most according to claim 1 and 2, it is characterised in that described oxygen obstruction
The thickness of property resin bed is set as 10～50 μm.
Multi-layer resinous thin film the most according to claim 1 and 2, it is characterised in that described each bonding layer
Thickness be set as 10～50 μm.The thickness of olefine kind resin layer add up to more than 10 μm and less than
50μm。
Multi-layer resinous thin film the most according to claim 1 and 2, it is characterised in that described phenylethylene
Resin bed by containing mass percent be 4～8% the styrene resin of butadiene rubber composition formed.
Multi-layer resinous thin film the most according to claim 1 and 2, it is characterised in that described multi-layer resinous
The thickness of thin film is set as 500～1000 μm.
8. a container molding, it is for entering the multi-layer resinous thin film recorded any one of claim 1 to 7
Row thermoforming and obtain.
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| CN201510245302.XA CN106273953A (en) | 2015-05-14 | 2015-05-14 | Multi-layer resinous thin film and container molding |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002046235A (en) * | 2000-05-23 | 2002-02-12 | Dainippon Ink & Chem Inc | Multilayered film, multilayered sheet and easily openable packaging container |
| JP2003112392A (en) * | 2001-10-04 | 2003-04-15 | Daicel Pack Systems Ltd | Laminated sheet for container |
| CN201105860Y (en) * | 2007-11-20 | 2008-08-27 | 吉林省农业机械研究院 | Novel fresh meat thermal shrinkage keeping-fresh bag film |
| WO2014051093A1 (en) * | 2012-09-28 | 2014-04-03 | 東洋製罐株式会社 | Multilayer container |
| CN104002509A (en) * | 2013-02-22 | 2014-08-27 | 电气化学工业株式会社 | Multilayer resin sheet for deep drawing molding, and molded container |
-
2015
- 2015-05-14 CN CN201510245302.XA patent/CN106273953A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002046235A (en) * | 2000-05-23 | 2002-02-12 | Dainippon Ink & Chem Inc | Multilayered film, multilayered sheet and easily openable packaging container |
| JP2003112392A (en) * | 2001-10-04 | 2003-04-15 | Daicel Pack Systems Ltd | Laminated sheet for container |
| CN201105860Y (en) * | 2007-11-20 | 2008-08-27 | 吉林省农业机械研究院 | Novel fresh meat thermal shrinkage keeping-fresh bag film |
| WO2014051093A1 (en) * | 2012-09-28 | 2014-04-03 | 東洋製罐株式会社 | Multilayer container |
| CN104002509A (en) * | 2013-02-22 | 2014-08-27 | 电气化学工业株式会社 | Multilayer resin sheet for deep drawing molding, and molded container |
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