CN203402502U - Composite film for packaging vacuum thermal baffle - Google Patents
Composite film for packaging vacuum thermal baffle Download PDFInfo
- Publication number
- CN203402502U CN203402502U CN201320449174.7U CN201320449174U CN203402502U CN 203402502 U CN203402502 U CN 203402502U CN 201320449174 U CN201320449174 U CN 201320449174U CN 203402502 U CN203402502 U CN 203402502U
- Authority
- CN
- China
- Prior art keywords
- film
- polyvinyl alcohol
- layer
- polyethylene
- insulation panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Laminated Bodies (AREA)
Abstract
The utility model belongs to the technical field of flexible package composite materials and relates to a composite film for packaging a vacuum thermal baffle. The composite film for packaging the vacuum thermal baffle comprises a two-way stretching polyamide film, an aluminized polyethylene terephthalate film, an aluminized polyethylene terephthalate film or an polyvinylidene chloride film coated with polyamide or an aluminized ethylene-polyvinyl alcohol film and a polyethylene-polyvinyl alcohol film sequentially from outside to inside, wherein the films are bonded through an adhesive. Compared with products of the same type, the composite film for packaging the vacuum thermal baffle has the advantages of being low in heat conductivity coefficient, high in resistance, resistant to puncturing, easy to package and the like.
Description
Technical field
The utility model belongs to flexible package composite material technical field, relates to a kind of vacuum insulation panel packing laminated film.
Background technology
Vacuum insulation panel (Vacuum Insulation Panel; VIP) be a kind of superadiabatic warm material; it is composited by stuffed heat insulated core, getter MAT'L and vacuum protection top layer; it adopts the method vacuumizing that the gas clean-up being retained in adiabatic space is fallen; the heat transmission of effectively avoiding circulating air to cause, has greatly reduced coefficient of thermal conductivity.So performance and the service life of vacuum heat-insulating plate, depend on to a great extent surperficial diaphragm material impermeabilisation ability to gas in its use procedure, degree of vacuum in vacuum heat-insulating plate is lower, its heat-proof quality is better, coefficient of thermal conductivity changes little, the heat-proof quality of vacuum heat-insulating plate is better, and service life is longer.
At present, in order to improve film anti-gas osmosising performance, strengthen the heat-proof quality of vacuum heat-insulating plate, its packaging bag need to adopt plastic-aluminum combined flexible packaging film, as license notification number CN 201721767U, license publication No. CN101844642A has introduced a kind of plastic-aluminum vacuum thermal baffle packaging film, its structure is followed successively by biaxial tension nylon layer from outside to inside, layer of polyethylene terephthalate, aluminium foil layer, biaxial tension nylon layer, polyethylene, its coefficient of thermal conductivity < 0.005W/mK, moisture-vapor transmission≤0.2 g/m2.day, OTR oxygen transmission rate≤0.05 cc/m2.day.License notification number CN201381006Y has introduced a kind of plastic-aluminum vacuum thermal baffle packaging film, its structure is followed successively by biaxial tension nylon 15um from outside to inside, the polyethylene terephthalate 12um that aluminizes, polyethylene 15um, aluminium foil 7um, ethene 15um, metallocene PE 85um, its moisture-vapor transmission is 0.2g/m2.day, OTR oxygen transmission rate is 0.1cc/m2.day, coefficient of thermal conductivity < 0.0035W/mK, encapsulating after one week coefficient of thermal conductivity increases 0.0451mW/mK every day.Although upper aluminum-plastic packaged film can meet the operating needs of vacuum insulation panel, consider that the coefficient of thermal conductivity (273 W/mK) of metal aluminum foil is far longer than the coefficient of thermal conductivity of mylar (coefficient of thermal conductivity is 0.15 W/mK), nylon film (coefficient of thermal conductivity is 0.43 W/mK), polyethylene foil (coefficient of thermal conductivity is 1.05 W/mK).And be generally 15～20 years the service life of vacuum insulation panel, and As time goes on will certainly have influence on the service life of vacuum insulation panel, the vacuum insulation panel packaging film of therefore developing coefficient of thermal conductivity high-barrier has become a kind of trend.
Utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, and a kind of vacuum insulation panel packing laminated film is provided, and this laminated film has the features such as low thermal conductivity, high-barrier, puncture-resistant, easy encapsulation.
Technical problem to be solved in the utility model is achieved through the following technical solutions:
A packing laminated film, is followed successively by the bonding two-way stretching polyamide film of adhesives, the pet film of aluminizing, aluminize pet film or polyvinylidene chloride coating polyamide film or the ethene-polyvinyl alcohol film of aluminizing, polyethylene-polyvinyl alcohol film from outside to inside.
Described polyethylene-polyvinyl alcohol film, the hot sealing layer of being produced by three-layer co-extruded film-blowing process, interlayer, corona layer are composited, and wherein said hot sealing layer is that weight ratio is linear low density polyethylene (LLDPE), the metallocene PE resin compound film of 1～2:1～2; Interlayer is ethene-polyvinyl alcohol resin film; Corona layer is that weight ratio is the Low Density Polyethylene of 1～2:1～2, the mixture film of type low density polyethylene resin.
The layer thickness ratio of the hot sealing layer of described polyethylene-polyvinyl alcohol film, interlayer, corona layer is 1～1.5:0.5～1:1.5～2.
Described laminated film interlayer adhesive Thickness Ratio is followed successively by 3.0～3.5:3.6～4.0:4.1～4.5 from outside to inside.
According to technique scheme, a kind of vacuum insulation panel packing of the utility model is as follows with the beneficial effect of laminated film:
(1) a kind of vacuum insulation panel packing of the utility model laminated film, its coefficient of thermal conductivity is about 0.0025～0.003W/mK, the coefficient of thermal conductivity of every day increases 0.025m W/ mK(and encapsulates one week).
(2) a kind of vacuum insulation panel packing of the utility model laminated film, its OTR oxygen transmission rate OTR≤0.05 cc/m2.day, moisture-vapor transmission WVTR≤0.5g/m2.day.
(3) a kind of vacuum insulation panel packing of the utility model laminated film, its heat seal strength >=50N/15mm, can tolerate the operating temperature of-70 ~ 80 ℃ and the compression strength of 1～130Pa.
(4) a kind of vacuum insulation panel packing of the utility model laminated film, has good dimensional stability, surfacing without phenomenons such as the brilliant points of bubble.
Accompanying drawing explanation
Fig. 1 is the structural representation of laminated film for 1 one kinds of vacuum insulation panel packings of embodiment.
Fig. 2 is the structural representation of polyethylene-polyvinyl alcohol film of embodiment 1.
The specific embodiment
Below in conjunction with accompanying drawing and preferred embodiments, a kind of vacuum insulation panel packing the utility model proposes is described in detail as follows with laminated film:
As shown in Figure 1, a packing laminated film, is followed successively by the bonding two-way stretching polyamide film of adhesives 1, the pet film 3 of aluminizing, the pet film 5 of aluminizing, polyethylene-polyvinyl alcohol film 7 from outside to inside.
As shown in Figure 2, the hot sealing layer 73 that the polyethylene-polyvinyl alcohol film 7 of innermost layer is produced by three-layer co-extruded film-blowing process, interlayer 72, corona layer 71 are composited, and layer thickness is than being 1:1:2.Wherein said hot sealing layer is that weight ratio is the linear low density polyethylene (LLDPE) of 1:1, the mixture film of metallocene PE resin; Interlayer is ethene-polyvinyl alcohol resin film; Corona layer is that weight ratio is the Low Density Polyethylene of 1:2, the mixture film of type low density polyethylene resin.
Adhesives for bonding each layer is two component polyurethane gluing agent, adopts the adhesion agent complex technique of differentiation, and described laminated film from outside to inside three layers of adhesive layer of interlayer, 2,4,6 Thickness Ratios is followed successively by 3.0:3.6:4.5.
Above-mentioned vacuum insulation panel packing by the preparation method of laminated film is:
(1) polyethylene-polyvinyl alcohol film adopts three-layer co-extruded blown film to go out explained hereafter, hot sealing layer 73, interlayer 72, corona layer 71, consists of, and its layer thickness is than being 1:1:2;
(2) by dry type complex method by the non-face of aluminizing of the composite aluminium-plated pet film 3 of adhesives on the corona surface of two-way stretching polyamide film 1, spread is at 3.0g/m
2, then in temperature, humidity and time, be respectively and under condition, carry out maturation process in 45 ℃, 60%, 3 day;
(3) step (2) gained two-way stretching polyamide film 1/ adhesion agent 2/ the is aluminized face of aluminizing of the composite aluminium-plated pet film 5 of adhesives 4 on the face of aluminizing of pet film 3, spread is at 3.6g/m
2, and then in temperature, humidity and time, be respectively maturation process under the condition of 45 ℃, 60%, 4 day;
(4) step (3) gained two-way stretching polyamide film 1/ adhesion agent 2/ is aluminized the aluminize corona surface of adhesives 6 composite polyethylenes-polyvinyl alcohol film 7 on pet film 5 of pet film 3/ adhesives 4/, spread is at 4.5g/m
2, and then in temperature, humidity and time, be respectively maturation process under the condition of 40 ℃, 60%, 2 day.
(5) laminated film of step (4) gained is cut to rolling film according to client's specification demands.
(6) laminated film cutting that divides of step (5) gained is made to three edge sealing bags according to client's size requirements.
After testing, its coefficient of thermal conductivity is about 0.0025W/mK, and the coefficient of thermal conductivity of every day increases 0.025m W/ mK(and encapsulates one week).OTR oxygen transmission rate 0.047 cc/m2.day, moisture-vapor transmission 0. 39g/m2.day.Heat seal strength 55N/15mm, can tolerate the operating temperature of-70 ~ 80 ℃ and the compression strength of 1～130Pa.
embodiment 2
A packing laminated film, is followed successively by the bonding two-way stretching polyamide film of adhesives, the pet film of aluminizing, polyvinylidene chloride coating polyamide film, polyethylene-polyvinyl alcohol film from outside to inside.
The hot sealing layer that the polyethylene-polyvinyl alcohol film of innermost layer is produced by three-layer co-extruded film-blowing process, interlayer, corona layer are composited, and layer thickness is than being 1.5:1:2.Wherein said hot sealing layer is that weight ratio is the linear low density polyethylene (LLDPE) of 1:2, the compound of metallocene PE resin; Interlayer is ethene-polyvinyl alcohol resin; Corona layer is that weight ratio is the Low Density Polyethylene of 1:1, the compound of type low density polyethylene resin.
Adhesives for bonding each layer is two component polyurethane gluing agent, adopts the adhesion agent complex technique of differentiation, and described laminated film from outside to inside three layers of adhesive layer Thickness Ratio of interlayer is followed successively by 3.5:4.0:4.1.
Above-mentioned vacuum insulation panel packing by the preparation method of laminated film is:
(1) polyethylene-polyvinyl alcohol film adopts three-layer co-extruded blown film to go out explained hereafter, hot sealing layer, interlayer, corona layer, consists of, and its layer thickness is than being 1.5:1:2;
(2) by dry type complex method by the non-face of aluminizing of the composite aluminium-plated pet film of adhesives on the corona surface of two-way stretching polyamide film, spread is at 3.5g/m
2, then in temperature, humidity and time, be respectively and under condition, carry out maturation process in 45 ℃, 60%, 3 day;
(3) by the coat side of the compound polyvinylidene chloride coating of adhesives on the face of aluminizing of step (2) gained two-way stretching polyamide film/adhesion agent/pet film of aluminizing polyamide film, spread is at 4.0g/m
2, and then in temperature, humidity and time, be respectively maturation process under the condition of 45 ℃, 60%, 4 day;
(4) by the corona surface of adhesives composite polyethylene-polyvinyl alcohol film on step (3) gained two-way stretching polyamide film/adhesion agent/pet film/adhesives of aluminizing/polyvinylidene chloride coating polyamide film, spread is at 4.1g/m
2, and then in temperature, humidity and time, be respectively maturation process under the condition of 40 ℃, 60%, 2 day.
(5) laminated film of step (4) gained is cut to rolling film according to client's specification demands.
(6) laminated film cutting that divides of step (5) gained is made to three edge sealing bags according to client's size requirements.
After testing, its coefficient of thermal conductivity is about 0.0027W/mK, and the coefficient of thermal conductivity of every day increases 0.026m W/ mK(and encapsulates one week).OTR oxygen transmission rate 0.048cc/m2.day, moisture-vapor transmission 0.45g/m2.day.Heat seal strength 56N/15mm, can tolerate the operating temperature of-70 ~ 80 ℃ and the compression strength of 60～100Pa.
embodiment 3
A packing laminated film, is followed successively by the bonding two-way stretching polyamide film of adhesives, the pet film of aluminizing, the ethene-polyvinyl alcohol film of aluminizing, polyethylene-polyvinyl alcohol film from outside to inside.
The hot sealing layer that the polyethylene-polyvinyl alcohol film of innermost layer is produced by three-layer co-extruded film-blowing process, interlayer, corona layer are composited, and layer thickness is than being 1.5:0.5:2.Wherein said hot sealing layer is that weight ratio is the linear low density polyethylene (LLDPE) of 1:2, the compound of metallocene PE resin; Interlayer is ethene-polyvinyl alcohol resin; Corona layer is that weight ratio is the Low Density Polyethylene of 1:1, the compound of type low density polyethylene resin.
Adhesives for bonding each layer is two component polyurethane gluing agent, adopts the adhesion agent complex technique of differentiation, and described laminated film from outside to inside three layers of adhesive layer Thickness Ratio of interlayer is followed successively by 3.5:4.0:4.5.
Above-mentioned vacuum insulation panel packing by the preparation method of laminated film is:
(1) polyethylene-polyvinyl alcohol film adopts three-layer co-extruded blown film to go out explained hereafter, hot sealing layer, interlayer, corona layer, consists of, and its layer thickness is than being 1.5:1:2;
(2) by dry type complex method by the non-face of aluminizing of the composite aluminium-plated pet film of adhesives on the corona surface of two-way stretching polyamide film, spread is at 3.5g/m
2, then in temperature, humidity and time, be respectively and under condition, carry out maturation process in 45 ℃, 60%, 3 day;
(3) by the face of aluminizing of the composite aluminium-plated ethene-polyvinyl alcohol film of adhesives on the face of aluminizing of step (2) gained two-way stretching polyamide film/adhesion agent/pet film of aluminizing, spread is at 4.0g/m
2, and then in temperature, humidity and time, be respectively maturation process under the condition of 45 ℃, 60%, 4 day;
(4) by the corona surface of adhesives composite polyethylene-polyvinyl alcohol film on step (3) gained two-way stretching polyamide film/adhesion agent/pet film/adhesives of the aluminizing/ethene-polyvinyl alcohol film of aluminizing, spread is at 4.5g/m
2, and then in temperature, humidity and time, be respectively maturation process under the condition of 40 ℃, 60%, 2 day.
(5) laminated film of step (4) gained is cut to rolling film according to client's specification demands.
(6) laminated film cutting that divides of step (5) gained is made to three edge sealing bags according to client's size requirements.
After testing, its coefficient of thermal conductivity is about 0.003W/mK, and the coefficient of thermal conductivity of every day increases 0.03m W/ mK(and encapsulates one week).OTR oxygen transmission rate 0.05cc/m2.day, moisture-vapor transmission 0.48g/m2.day.Heat seal strength 52N/15mm, can tolerate the operating temperature of-70 ~ 80 ℃ and the compression strength of 1～130Pa.
Above are only preferred embodiments of the present utility model; not the utility model is done to any pro forma restriction; within not departing from technical solutions of the utility model scope; any technology contents that utilizes above-mentioned announcement is made the scheme of the equivalent variations of a little change or modification; all belong within the scope of the technical solution of the utility model, therefore protection domain of the present utility model should be as the criterion with appended claim.
Claims (3)
1. kind of vacuum insulation panel packing laminated film, is characterized in that: be followed successively by from outside to inside the bonding two-way stretching polyamide film of adhesives, the pet film of aluminizing, aluminize pet film or polyvinylidene chloride coating polyamide film or the ethene-polyvinyl alcohol film of aluminizing, polyethylene-polyvinyl alcohol film.
2. according to vacuum insulation panel packing laminated film claimed in claim 1, it is characterized in that: described polyethylene-polyvinyl alcohol film, three layers of hot sealing layer, interlayer, corona layer trilamellar membrane, consist of, the layer thickness ratio of the hot sealing layer of described polyethylene-polyvinyl alcohol film, interlayer, corona layer is 1～1.5:0.5～1:1.5～2.
3. according to vacuum insulation panel packing laminated film claimed in claim 1, it is characterized in that: described laminated film interlayer adhesive Thickness Ratio is followed successively by 3.0～3.5:3.6～4.0:4.1～4.5 from outside to inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320449174.7U CN203402502U (en) | 2013-07-26 | 2013-07-26 | Composite film for packaging vacuum thermal baffle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320449174.7U CN203402502U (en) | 2013-07-26 | 2013-07-26 | Composite film for packaging vacuum thermal baffle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203402502U true CN203402502U (en) | 2014-01-22 |
Family
ID=49938441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320449174.7U Expired - Fee Related CN203402502U (en) | 2013-07-26 | 2013-07-26 | Composite film for packaging vacuum thermal baffle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203402502U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465578A (en) * | 2013-07-26 | 2013-12-25 | 惠州宝柏包装有限公司 | Composite film for packaging vacuum thermal insulation board and preparation method thereof |
-
2013
- 2013-07-26 CN CN201320449174.7U patent/CN203402502U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465578A (en) * | 2013-07-26 | 2013-12-25 | 惠州宝柏包装有限公司 | Composite film for packaging vacuum thermal insulation board and preparation method thereof |
| CN103465578B (en) * | 2013-07-26 | 2016-05-11 | 惠州宝柏包装有限公司 | A kind of vacuum insulation panel laminated film and preparation method thereof for packaging |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101260557B1 (en) | Vacuum insulation pannel and method for fabricating the same | |
| JP5879348B2 (en) | COMPOSITE CORE MATERIAL FOR VACUUM INSULATOR, PROCESS FOR PRODUCING THE SAME, AND VACUUM INSULATOR USING THE SAME | |
| CN202911236U (en) | High-barrier film for insulation material | |
| CN103465578B (en) | A kind of vacuum insulation panel laminated film and preparation method thereof for packaging | |
| KR101353647B1 (en) | Core material for vacuum insulation panel and vacuum insulation panel using the same | |
| CN203937991U (en) | A kind of high barrier aluminum-plating composite film | |
| CN202826613U (en) | Low-temperature heat-seal barrier coating film | |
| CN202640909U (en) | Composite film for packaging vacuum insulation panel | |
| CN203611513U (en) | High-barrier PVC (polyvinyl chloride) composite sheet | |
| CN202248335U (en) | Anchorable vacuum insulated heat-preservation plate for building | |
| CN203402502U (en) | Composite film for packaging vacuum thermal baffle | |
| CN201494070U (en) | High-strength BOPP heat-seal aluminum laminated film | |
| CN202448411U (en) | Novel high-separation vacuum film | |
| CN201381006Y (en) | Aluminum-plastic compound bag for vacuum insulation panel | |
| CN201900758U (en) | Novel aluminum foil composite bubble film | |
| CN108284655A (en) | A kind of superinsulation is packed for laminated film and preparation method thereof | |
| CN202934864U (en) | Polyethylene aluminum-coated composite film or bag with metal luster of diffuse reflection surface of aluminum foil | |
| CN208263623U (en) | A kind of high barrier hyaline membrane and yin-yang bag | |
| CN218876543U (en) | Composite film for vacuum heat-insulating plate, packaging film bag of composite film and vacuum heat-insulating plate | |
| CN202368022U (en) | Food packing bag | |
| CN202248332U (en) | Vacuum insulation board for buildings | |
| CN202054243U (en) | Multilayer co-extrusion packaging bag | |
| CN202054294U (en) | High-barrier multi-layer co-extrusion packaging film | |
| CN202592855U (en) | Toughened five-layer curtain-coating polypropylene film | |
| CN208543897U (en) | A kind of dilated food packaging film of ultra-low temperature heat sealing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 |