CN211616894U - Hidden edge-sealing interrupted yin-yang bag for vacuum insulated panel - Google Patents
Hidden edge-sealing interrupted yin-yang bag for vacuum insulated panel Download PDFInfo
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- CN211616894U CN211616894U CN202020001700.3U CN202020001700U CN211616894U CN 211616894 U CN211616894 U CN 211616894U CN 202020001700 U CN202020001700 U CN 202020001700U CN 211616894 U CN211616894 U CN 211616894U
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Abstract
The utility model discloses a hidden edge banding interrupted yin-yang bag for vacuum insulated panel. It comprises two aluminum foil films and two transparent films. The two aluminum foil films are oppositely arranged, and a heat sealing layer is arranged on the surface layer of each aluminum foil film or the surface layer of each aluminum foil film is arranged to have heat sealing property. One end of each of the two aluminum foil films is respectively hot-pressed and lapped with two ends of one of the transparent films, the other opposite end of each of the two aluminum foil films is respectively hot-pressed and lapped with two ends of the other of the transparent films, and a hidden edge sealing discontinuous yin-yang bag is formed by enclosing the transparent films-the aluminum foil films-the transparent films-the aluminum foil films. The utility model discloses a vacuum insulation panels is interrupted negative and positive bag with stealthy banding, take through two pellicles and the crisscross inlayer outer layer hot pressing of two aluminium foil membranes and seal and form, make the banding become the partly of sack like this, can not see the banding from the outward appearance where to form stealthy banding, well seal and violently seal the juncture and be difficult to leak gas, thereby improve the yield.
Description
Technical Field
The utility model relates to a vacuum insulation panels wrapping bag field especially relates to a vacuum insulation panels is interrupted negative and positive bag with stealthy banding.
Background
The vacuum insulation panel (VIP panel) is one of vacuum insulation materials, is formed by compounding a filling core material and a vacuum protection surface layer, effectively avoids heat transfer caused by air convection, can greatly reduce the heat conductivity coefficient to 0.002-0.004w/(m.k), is 1/10 of the heat conductivity coefficient of the traditional insulation material, and has excellent heat insulation performance. The excellent heat insulating performance of the VIP panel is due to the high vacuum degree, and the key of the barrier film material is to maintain the internal vacuum degree. At present, a multi-layer composite film is commonly used for carrying out left and right double-sided packaging, and a commonly used multi-layer aluminized polyester film with an aluminum-polyester composite film contains an aluminum foil layer with a large thickness, so that a serious thermal bridge effect exists, a large amount of heat is lost through the surface conduction of the film, and the heat preservation effect is greatly reduced.
From the functional point of view, the surface layer material of the multilayer composite film is usually a protective layer and is used for protecting internal products from being scratched, punctured and the like, and the inner layer material is used for hot sealing to form a bag; the protective layer has no heat sealing property in terms of physical properties, so that when the bag is manufactured, only the inner layer material and the inner layer material of the composite film can be used for forming the bag by pressing and ironing edges at high temperature, namely, the AA seal or the inner seal is generally called as the AA seal, as shown in figure 1. So encapsulated, the seam 10 must be a symmetrical hierarchy, as shown in FIG. 2. The outermost two layers of the seam 10 are respectively a protective layer 1, such as BOPP, PET, PA films and the like which are commonly used; then the two sides are provided with adhesives 2, and the adhesives 2 are used for bonding different film raw materials; then the barrier layers 3 are arranged on the two sides, the barrier layers 3 prevent oxygen and water vapor from permeating, and metal materials such as aluminum-plated films, aluminum foils and the like and high-barrier coating materials are commonly used; then adhesive 2 on both sides; then the barrier layer 3 and the adhesive 2 are on both sides; finally, two heat-sealing layers 4 are arranged in the center.
From the appearance, the bag with three sealed edges and the bag with a middle sealed edge are two kinds of bags, the sealed edges of the two kinds of bags are sealed by the inner layer and the inner layer of the composite film in a heat sealing way, the sealed edges are independent from the inner cavity of the bag and are not part of the bag body, the joint of the middle sealed edge and the transverse sealed edge is easy to leak air, and the finished product rate is low; and the heat insulation plate is only wrapped by an aluminum foil film, which is easy to generate an edge heat bridge effect.
SUMMERY OF THE UTILITY MODEL
In order to reduce the thermal bridge effect and solve the problem of boundary gas leakage, the utility model provides a hidden edge sealing discontinuous yin-yang bag for vacuum insulation panels.
The utility model discloses a following technical scheme realizes: a hidden edge-sealing interrupted yin-yang bag for a vacuum insulation panel comprises two aluminum foil films which are oppositely arranged, and a heat sealing layer is arranged on the surface layer of each aluminum foil film or the surface layer of each aluminum foil film is arranged to have heat sealing property; one end of each of the two aluminum foil films is respectively in hot-pressing lap-sealing with two ends of one of the two transparent films, the other opposite end of each of the two aluminum foil films is respectively in hot-pressing lap-sealing with two ends of the other one of the two transparent films, and a hidden edge-sealing interrupted yin-yang bag is enclosed by the transparent films-the aluminum foil films-the transparent films-the aluminum foil films; when the invisible sealed edge is interrupted and the yin-yang bag is wrapped with one vacuum heat insulation plate, two side faces of the vacuum heat insulation plate, representing the thickness, are wrapped by two transparent films respectively, and two side faces of the vacuum heat insulation plate, representing the heat insulation, face to the two aluminum foil films respectively.
As a further improvement of the above scheme, from the outside of the bag to the inside of the bag, the aluminum foil film has the hierarchical structure of: PA, adhesive, VMPET, adhesive, AL, adhesive, PE.
As a further improvement of the above scheme, from the outside of the bag to the inside of the bag, the aluminum foil film has the hierarchical structure of: PE, adhesive, VMPET, adhesive, AL, adhesive, PE.
As a further improvement of the above scheme, from the outside of the bag to the inside of the bag, the aluminum foil film has the hierarchical structure of: PE, adhesive, PA, adhesive, AL, adhesive, PE.
As a further improvement of the above scheme, from the outside of the bag to the inside of the bag, the aluminum foil film has the hierarchical structure of: PE, adhesive, PET, adhesive, AL, adhesive, PE.
As a further improvement of the above scheme, the hierarchical structure of the transparent film sequentially from the outside to the inside of the bag with the hidden edge sealing and the interrupted yin-yang bag is as follows: PE, adhesive, vapor-deposited PET, adhesive, PE.
As a further improvement of the above scheme, the hierarchical structure of the transparent film sequentially from the outside to the inside of the bag with the hidden edge sealing and the interrupted yin-yang bag is as follows: vapor-deposited PET, adhesive, PE.
As a further improvement of the above scheme, the hierarchical structure of the transparent film sequentially from the outside to the inside of the bag with the hidden edge sealing and the interrupted yin-yang bag is as follows: PE, adhesive, vapor-deposited PET, adhesive, PE.
The utility model also discloses another invisible edge banding interrupted yin-yang bag for the vacuum insulation panel, which comprises two aluminum foil membranes which are oppositely arranged, and the surface layer of each aluminum foil membrane is provided with a heat sealing layer or the surface layer of each aluminum foil membrane is arranged to have heat sealing performance; one end of each of the two aluminum foil films is respectively in hot-pressing lap joint with two ends of one of the aluminum foil films, the other opposite end of each of the two aluminum foil films is respectively in hot-pressing lap joint with two ends of the other one of the aluminum foil films, and a hidden edge-sealing intermittent yin-yang bag is enclosed by the aluminum foil films, the aluminum foil films and the aluminum foil films in sequence; when the invisible edge sealing discontinuous yin-yang bag is wrapped with one vacuum heat insulation plate, two side surfaces of the vacuum heat insulation plate representing the thickness are wrapped by two aluminum-plated films respectively, and two side surfaces of the vacuum heat insulation plate representing the heat insulation face the two aluminum foil films respectively.
As a further improvement of the above scheme, the hierarchical structure of the aluminum foil film from the outside to the inside of the bag of the hidden edge-sealed interrupted yin-yang bag is the same as that of the aluminum foil film of the hidden edge-sealed interrupted yin-yang bag for the vacuum insulation panel.
The utility model discloses a vacuum insulation panels is interrupted negative and positive bag with stealthy banding, take through two pellicles or aluminium foil membrane and the crisscross inside and outside hot pressing of two aluminizers and seal and form, make the banding become the partly of sack like this, can not see the banding where from the outward appearance, thereby form stealthy banding, when packing vacuum insulation panels, only need roll over both sides, compare trilateral sealing bag, the hem efficiency is higher, the cost of labor has been reduced, and the middle sealing is difficult to leak gas with violently sealing the juncture, thereby the yield is improved.
Meanwhile, the aluminizer or the transparent film is only used for wrapping the left side and the right side of the vacuum heat-insulating plate, so that the using amount of the aluminizer or the transparent film is reduced, and the heat loss possibility is greatly reduced when the aluminizer or the transparent film is attached to the vacuum heat-insulating plate due to the lower heat conductivity of the aluminizer or the transparent film, so that the heat loss is reduced, the edge heat bridge effect is effectively solved, and the comprehensive heat-insulating performance of the vacuum heat-insulating plate is further improved.
Drawings
FIG. 1 is a schematic structural view of an edge banding bag for a vacuum insulation panel in the prior art;
FIG. 2 is a schematic view of the hierarchical structure at the seam of FIG. 1;
fig. 3 is a schematic structural view of the invisible edge banding interrupted yin-yang bag for the vacuum insulation panel of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Example 1
Referring to fig. 3, the invisible sealing edge of the vacuum insulation panel of the present invention is used to interrupt the yin-yang bag, two aluminum foil films 6 are oppositely disposed, and the surface layer of each aluminum foil film 6 is provided with a heat sealing layer or the surface layer of each aluminum foil film 6 is provided with heat sealing property.
One end of each of the two transparent films 5 is respectively hot-pressed and sealed with two ends of one of the transparent films 5, the other opposite end of each of the two aluminum foil films 6 is respectively hot-pressed and sealed with two ends of the other transparent film 5, and an invisible edge-sealing interrupted yin-yang bag is enclosed by the transparent films 5-the aluminum foil films 6-the transparent films 5-the aluminum foil films 6 in sequence, so that four edge-sealing parts 7 are formed. Its banding of banding bag that forms like this becomes the partly of sack, can not see the banding where from the outward appearance to form stealthy banding, when packing vacuum insulation panels, only need roll over both sides, compare trilateral bag of sealing, the hem efficiency is higher, has reduced the cost of labor, and well seal is difficult to the gas leakage with horizontal junction moreover, thereby improves the yield.
And when the invisible sealed edge breaks the yin-yang bag and wraps up a vacuum heat insulation plate, two sides of the vacuum heat insulation plate representing the thickness are respectively wrapped by two transparent films 5, and two sides of the vacuum heat insulation plate representing the heat insulation face two aluminum foil films 6 respectively. Therefore, the using amount of the transparent film 5 can be saved, and the heat loss possibility is greatly reduced when the transparent film is attached to the vacuum heat-insulating plate due to the lower heat conductivity of the transparent film, so that the heat loss is reduced, the edge heat bridge effect is effectively solved, and the comprehensive heat-insulating performance of the vacuum heat-insulating plate is further improved.
Wherein the aluminum foil membrane 6 has four different hierarchical structures from the outside of the bag to the inside of the bag with the edge sealed, which are respectively:
the first method comprises the following steps: PA15, adhesive, VMPET12, adhesive, AL7, adhesive, PE 50.
And the second method comprises the following steps: PE30, adhesive, VMPET12, adhesive, AL7, adhesive, PE 50.
And the third is that: PE30, adhesive, PA15, adhesive, AL7, adhesive, PE 50.
And fourthly: PE30, adhesive, PET12, adhesive, AL7, adhesive, PE 50.
In addition, the transparent film 5 has three different hierarchical structures from the outside to the inside of the bag with the edge sealed, which are:
the first method comprises the following steps: PE30, adhesive, evaporated PET12, adhesive, evaporated PET12, adhesive, evaporated PET12, adhesive, PE 50.
And the second method comprises the following steps: evaporated PET12, adhesive, evaporated PET12, adhesive, evaporated PET12, adhesive, PE 50.
And the third is that: PE30, adhesive, evaporated PET12, adhesive, evaporated PET12, adhesive, PE 50.
In the above-described hierarchical structure, the numbers following the hierarchical structure characterize the thickness of each layer in microns, e.g., PE30, meaning that the hierarchical material is PE and has a thickness of 30 microns.
PE, polyethylene, has good heat sealability and clarity, and is moisture and water resistant. PET is a film material which takes polyethylene glycol terephthalate as a raw material, is made into a thick sheet by an extrusion method, and is made into a film material by biaxial stretching, and the film material is colorless, transparent and glossy, has excellent mechanical properties, high rigidity, hardness and toughness, puncture resistance, friction resistance, high temperature resistance, low temperature resistance, chemical resistance, oil resistance, air tightness and aroma retention. The PA molecular main chain is a polymer containing a plurality of repeated amide groups, the performance of the PA molecular main chain is similar to that of a PET film, and the PA molecular main chain is a good composite film protective material. VMPET refers to a polyester aluminized film, which has characteristics of both plastic films and metals. The aluminized film has the functions of shading and preventing ultraviolet irradiation, not only prolongs the quality guarantee period of the contents, but also improves the brightness of the film, and has low price, attractive appearance and better protective performance. AL is aluminum foil, which is a hot stamping material formed by directly rolling metallic aluminum into sheets, and the hot stamping effect is similar to that of pure silver foil hot stamping, so the aluminum foil is also called false silver foil. Because the aluminum has soft texture, good ductility and silvery-white luster, if the rolled sheet is pasted on offset paper by sodium silicate and other substances to prepare an aluminum foil, the aluminum foil can be printed, has higher hardness and tensile strength, and has stronger shielding performance on water vapor, air, ultraviolet rays, bacteria and the like.
Example 2
The embodiment discloses another hidden edge-sealed interrupted yin-yang bag for a vacuum insulation panel, and the specific structure of the bag is substantially the same as that of the bag in embodiment 1. Except that the transparent film 5 was replaced with an aluminum-plated film.
Will the utility model provides a stealthy banding is interrupted negative and positive bag VIP board and traditional trilateral aluminized bag VIP board and trilateral transparent bag VIP board of sealing and is carried out life-span test:
and (4) testing standard: national standard-GB/T37608-2019
Aging conditions are as follows: 90% RH at 70 deg.C
The VIP board core material comprises: wet-process glass wool core material
Specification size of VIP plate: 290mm in width, 410mm in length, 10mm in thickness
λ 0 initial thermal conductivity of VIP plate (unit: mw)
λ 1: test value of thermal conductivity (unit: mw) of VIP plate after aging for 7 days
λ 2: test value of thermal conductivity (unit: mw) of VIP plate after aging for 14 days
λ 3: test value of thermal conductivity (unit: mw) of VIP plate after aging for 21 days
λ 4: test value of thermal conductivity (unit: mw) of VIP plate after aging for 28 days
λ 5: heat conductivity coefficient test value (unit: mw) of VIP plate after being aged for 28 days and placed at normal temperature for 30 days
λ 6: test value of thermal conductivity (unit: mw) of VIP plate after aging for 28 days and standing at normal temperature for 90 days
λ 7: test value of thermal conductivity (unit: mw) of VIP plate after aging for 28 days and standing at normal temperature for 180 days
The test results are given in the following table:
age-related comparison test data
And (4) conclusion: the performance of the VIP plate manufactured by adopting the hidden edge sealing discontinuous yin-yang bag is far better than that of a VIP plate manufactured by a three-edge sealing aluminum-plated bag or a non-aluminum bag in the aspect of life aging test. And meanwhile, the comprehensive heat transfer coefficient of the mixed invisible edge sealing is equivalent to that of a VIP plate made of a double-sided aluminum-plated bag or a non-aluminum bag in terms of test. Therefore, the invention of the mixed invisible sealed variable bag not only enables the VIP board to obtain excellent aging life, but also improves the heat preservation and heat insulation performance (namely lower heat transfer coefficient) of the whole VIP board, and simultaneously the product has beautiful appearance, and the cost is greatly reduced by adopting less transparent films or aluminized films.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a vacuum insulation panels is with stealthy banding yin and yang bag of being interrupted which characterized in that includes:
the two aluminum foil films (6) are oppositely arranged, and a heat sealing layer is arranged on the surface layer of each aluminum foil film (6) or the surface layer of each aluminum foil film (6) is arranged to have heat sealing property;
one end of each of the two aluminum foil membranes (6) is respectively in hot-pressing lap-sealing with two ends of one of the transparent membranes (5), the other opposite end of each of the two aluminum foil membranes (6) is respectively in hot-pressing lap-sealing with two ends of the other one of the transparent membranes (5), and a hidden edge-sealing discontinuous yin-yang bag is enclosed by the transparent membranes (5) -the aluminum foil membranes (6) -the transparent membranes (5) -the aluminum foil membranes (6) in sequence; when the invisible sealed edge is interrupted and the yin-yang bag is wrapped with one vacuum heat insulation plate, two side faces of the vacuum heat insulation plate, representing the thickness, are wrapped by two transparent films (5) respectively, and two side faces of the vacuum heat insulation plate, representing the heat insulation, face two aluminum foil films (6) respectively.
2. The concealed edge-sealed interrupted yin-yang bag for a vacuum insulation panel according to claim 1, wherein: when the outer inlayer of aluminium foil membrane (6) all was provided with the heat-seal layer, follow the outer bag to the bag of negative and positive bag is interrupted in stealthy banding, and the hierarchy of aluminium foil membrane (6) is in proper order: PA, adhesive, VMPET, adhesive, AL, adhesive, PE.
3. The concealed edge-sealed interrupted yin-yang bag for a vacuum insulation panel according to claim 1, wherein: when the outer inlayer of aluminium foil membrane (6) all was provided with the heat-seal layer, follow the outer bag to the bag of negative and positive bag is interrupted in stealthy banding, and the hierarchy of aluminium foil membrane (6) is in proper order: PE, adhesive, VMPET, adhesive, AL, adhesive, PE.
4. The concealed edge-sealed interrupted yin-yang bag for a vacuum insulation panel according to claim 1, wherein: when the outer inlayer of aluminium foil membrane (6) all was provided with the heat-seal layer, follow the outer bag to the bag of negative and positive bag is interrupted in stealthy banding, and the hierarchy of aluminium foil membrane (6) is in proper order: PE, adhesive, PA, adhesive, AL, adhesive, PE.
5. The concealed edge-sealed interrupted yin-yang bag for a vacuum insulation panel according to claim 1, wherein: when the outer inlayer of aluminium foil membrane (6) all was provided with the heat-seal layer, follow the outer bag to the bag of negative and positive bag is interrupted in stealthy banding, and the hierarchy of aluminium foil membrane (6) is in proper order: PE, adhesive, PET, adhesive, AL, adhesive, PE.
6. The concealed edge-sealed interrupted yin-yang bag for a vacuum insulation panel according to claim 1, wherein: from the outside of the bag to the inside of the bag, the layer structure of the transparent film (5) is as follows: PE, adhesive, vapor-deposited PET, adhesive, PE.
7. The concealed edge-sealed interrupted yin-yang bag for a vacuum insulation panel according to claim 1, wherein: from the outside of the bag to the inside of the bag, the layer structure of the transparent film (5) is as follows: vapor-deposited PET, adhesive, PE.
8. The concealed edge-sealed interrupted yin-yang bag for a vacuum insulation panel according to claim 1, wherein: from the outside of the bag to the inside of the bag, the layer structure of the transparent film (5) is as follows: PE, adhesive, vapor-deposited PET, adhesive, PE.
9. The utility model provides a vacuum insulation panels is with stealthy banding yin and yang bag of being interrupted which characterized in that, it includes:
the two aluminum foil films (6) are oppositely arranged, and a heat sealing layer is arranged on the surface layer of each aluminum foil film (6) or the surface layer of each aluminum foil film (6) is arranged to have heat sealing property;
one end of each of the two aluminum foil membranes (6) is respectively in hot-pressing lap joint with two ends of one of the aluminum foil membranes, the other opposite end of each of the two aluminum foil membranes (6) is respectively in hot-pressing lap joint with two ends of the other one of the aluminum foil membranes, and a hidden edge-sealing discontinuous positive and negative bag is enclosed by the aluminum foil membranes (6) -the aluminum foil membranes (6) in sequence; when the invisible edge sealing discontinuous yin-yang bag is wrapped with one vacuum heat insulation plate, two side surfaces of the vacuum heat insulation plate representing the thickness are wrapped by two aluminum-plated films respectively, and two side surfaces of the vacuum heat insulation plate representing the heat insulation face the two aluminum foil films (6) respectively.
10. The concealed edge-sealed interrupted yin-yang bag for a vacuum insulation panel according to claim 9, wherein: the layer structure of the aluminum foil film (6) is the same as the layer structure of the aluminum foil film (6) of the invisible edge sealing interrupted yin-yang bag for the vacuum insulation panel according to any one of claims 2 to 5 from the outside to the inside of the invisible edge sealing interrupted yin-yang bag.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020001700.3U CN211616894U (en) | 2020-01-02 | 2020-01-02 | Hidden edge-sealing interrupted yin-yang bag for vacuum insulated panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020001700.3U CN211616894U (en) | 2020-01-02 | 2020-01-02 | Hidden edge-sealing interrupted yin-yang bag for vacuum insulated panel |
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| CN211616894U true CN211616894U (en) | 2020-10-02 |
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| CN202020001700.3U Active CN211616894U (en) | 2020-01-02 | 2020-01-02 | Hidden edge-sealing interrupted yin-yang bag for vacuum insulated panel |
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