CN210590900U - Puncture-resistant composite barrier film and packaging box - Google Patents
Puncture-resistant composite barrier film and packaging box Download PDFInfo
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- CN210590900U CN210590900U CN201921222151.6U CN201921222151U CN210590900U CN 210590900 U CN210590900 U CN 210590900U CN 201921222151 U CN201921222151 U CN 201921222151U CN 210590900 U CN210590900 U CN 210590900U
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- layer
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- resistant
- barrier film
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- 230000004888 barrier function Effects 0.000 title claims abstract description 81
- 239000002131 composite material Substances 0.000 title claims abstract description 47
- 238000004806 packaging method and process Methods 0.000 title description 6
- 239000010410 layer Substances 0.000 claims abstract description 138
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 claims abstract description 31
- 239000012793 heat-sealing layer Substances 0.000 claims abstract description 19
- 229920000139 polyethylene terephthalate Polymers 0.000 claims abstract description 11
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- -1 polyethylene terephthalate Polymers 0.000 claims abstract description 4
- 239000005020 polyethylene terephthalate Substances 0.000 claims abstract 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract 4
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims abstract 2
- 229920006254 polymer film Polymers 0.000 claims abstract 2
- 239000007790 solid phase Substances 0.000 claims abstract 2
- 239000012790 adhesive layer Substances 0.000 claims description 28
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims description 10
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 claims description 9
- 239000004715 ethylene vinyl alcohol Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 8
- 229920006378 biaxially oriented polypropylene Polymers 0.000 claims description 4
- 239000011127 biaxially oriented polypropylene Substances 0.000 claims description 4
- 229920006233 biaxially oriented polyamide Polymers 0.000 claims description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 19
- 150000001875 compounds Chemical class 0.000 abstract description 13
- 238000012856 packing Methods 0.000 abstract description 9
- 239000004408 titanium dioxide Substances 0.000 abstract description 9
- 230000035939 shock Effects 0.000 abstract description 7
- 239000005022 packaging material Substances 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 3
- 239000010408 film Substances 0.000 description 110
- 239000004698 Polyethylene Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000013329 compounding Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000000249 desinfective effect Effects 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241001232787 Epiphragma Species 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 229920002988 biodegradable polymer Polymers 0.000 description 2
- 239000004621 biodegradable polymer Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 229920006284 nylon film Polymers 0.000 description 2
- 238000009461 vacuum packaging Methods 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000013039 cover film Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 229920001912 maleic anhydride grafted polyethylene Polymers 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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Abstract
The utility model discloses a compound barrier film of resistant puncture and packing carton relates to packaging material technical field. The puncture-resistant composite barrier film comprises a PETG (polyethylene terephthalate glycol) heat sealing layer, a middle barrier layer, an impact-resistant layer and a support layer which are sequentially stacked from inside to outside, wherein the impact-resistant layer comprises an SPE (solid phase polymer) film and a nano titanium dioxide film which are stacked from inside to outside. The utility model discloses a set up the shock resistance layer of constituteing by SPE film and nanometer titanium dioxide film, SPE has functions such as high strength, high resistant separation, high puncture, can improve the overall structure intensity of complex film, and nanometer titanium dioxide can improve the impact resistance and the performance of compound barrier film simultaneously when constituting the shock resistance layer with SPE complex, makes compound barrier film have the performance of resistant puncture, high separation.
Description
Technical Field
The utility model relates to a packaging material technical field, in particular to food package technical field, concretely relates to compound barrier film of resistant puncture and packing carton.
Background
With the increasing demands for packaging material performance, composite barrier films are becoming one of the commonly used packaging materials. The composite barrier film is formed by compounding multiple layers of film materials, has high barrier performance and excellent mechanical properties, can play a role in oxygen and water resistance, can meet the standards of boiling resistance, baking resistance and low-temperature freezing resistance, and has a wide application range. When packaging food with composite barrier films, vacuum packaging is often used to extend the shelf life or freshness of the food, which requires that the composite barrier film have sufficient strength to avoid damage under the influence of pressure differentials.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing a compound barrier film of resistant puncture and packing carton aims at providing a compound barrier film of resistant puncture.
In order to realize the above-mentioned purpose, the utility model provides a compound barrier film of resistant puncture, compound barrier film of resistant puncture includes PETG heat-seal layer, middle barrier layer, shock resistance layer and the supporting layer from interior to outer range upon range of setting in proper order, wherein, the shock resistance layer includes SPE film and the nanometer titanium dioxide film from interior to outer range upon range of setting.
Optionally, the thickness of the impact resistant layer accounts for 20-35% of the thickness of the puncture-resistant composite barrier film.
Optionally, in the impact-resistant layer, the thickness of the SPE film accounts for 70% to 80% of the thickness of the impact-resistant layer.
Optionally, the puncture-resistant composite barrier film comprises a PETG heat-sealing layer, a first adhesive layer, an EVA film layer, a second adhesive layer, a middle barrier layer, a third adhesive layer, an impact-resistant layer, a fourth adhesive layer and a support layer, which are sequentially stacked from inside to outside.
Optionally, the PETG heat-sealing layer, the first adhesive layer, the EVA film layer, the second adhesive layer, the intermediate barrier layer, the third adhesive layer, and the impact-resistant layer are compositely connected in a multilayer coextrusion manner.
Optionally, the intermediate barrier layer comprises a PA film layer and an EVOH film layer arranged in a stack.
Optionally, the support layer is a BOPP film layer, a BOPET film layer, or a BOPA film layer.
Based on this, the utility model discloses still provide a packing carton, the packing carton includes:
the bottom box comprises a sealing part and a containing bin;
the cover film comprises the high-strength composite barrier film, wherein the PETG heat sealing layer of the high-strength composite barrier film is bonded with the sealing part.
Optionally, the bottom case is made of PET.
The technical scheme of the utility model, through setting up the shock resistance layer of constituteing by SPE film and nanometer titanium dioxide film, SPE has functions such as high strength, high resistant separates, high puncture, can improve the overall structure intensity of complex film, nanometer titanium dioxide can shield the ultraviolet ray simultaneously, can play the efficiency of the scrubbing of disinfecting, and has high strength, stand wear and tear effect moreover, when constituting the shock resistance layer with SPE is compound, can improve the shock resistance and the performance of compound barrier film, make compound barrier film have the performance of resistant puncture, high separation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural view of an embodiment of the puncture-resistant composite barrier film provided by the present invention;
fig. 2 is a schematic structural view of another embodiment of the puncture-resistant composite barrier film provided by the present invention.
The reference numbers illustrate:
the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
When packaging food with composite barrier films, vacuum packaging is often used to extend the shelf life or freshness of the food, which requires that the composite barrier film have sufficient strength to avoid damage under the influence of pressure differentials.
In view of this, the utility model provides a puncture-resistant composite barrier film 100, aims at providing a puncture-resistant composite barrier film. Referring to fig. 1, in an embodiment of the puncture-resistant composite barrier film 100 of the present invention, the puncture-resistant composite barrier film 100 includes a PETG heat-sealing layer 1, an intermediate barrier layer 2, an impact-resistant layer 3, and a supporting layer 4, which are stacked in sequence from inside to outside, wherein the impact-resistant layer 3 includes an SPE film 31 and a nano-titania film 32, which are stacked from inside to outside. Namely, the puncture-resistant composite barrier film 100 comprises a PETG heat-sealing layer 1, a middle barrier layer 2, an SPE film 31, a nano titanium dioxide film 32 and a support layer 4 which are sequentially stacked from inside to outside. The layers are connected through bonding layers, the connection mode can be bonding, and also can be multilayer film coextrusion composite connection, namely, raw materials of a plurality of films are sent into the same neck mold after being melted and plasticized through a plurality of extruders, and the composite film is formed through extrusion molding. In this embodiment, the adhesive layer 5 is a biodegradable polymer adhesive, and the adhesive layer 5 is disposed between any two adjacent film layers, for example: the PETG heat-sealing layer 1/the bonding layer 5/the middle barrier layer 2/the bonding layer 5/the SPE film 31/the bonding layer 5/the nano titanium dioxide film 32/the bonding layer 5/the support layer 4, wherein the support layer 4 is bonded on the nano titanium dioxide film 32 through the bonding layer 5, and the rest film layers are compositely connected in a co-extrusion compounding mode.
Specifically, the SPE film 31 is made of a high-barrier material, PE and related connecting materials by co-extrusion to form super-functional PE, and can achieve the functions of high strength, high barrier, high puncture and the like which can be achieved only by compounding the traditional nylon film and the PE film without compounding, so that the overall structural strength of the composite film can be improved; the nano titanium dioxide has high strength, and when the nano titanium dioxide is compounded with SPE to form the impact resistant layer 3, the impact resistance and the use performance of the composite barrier film can be improved, so that the composite barrier film has puncture resistance and high barrier performance. In addition, nanometer titanium dioxide can also shield ultraviolet ray, can play the efficiency of disinfecting and decontaminating, and have stand wear and tear effect, with the coating of nanometer titanium dioxide film 32 layer in SPE film 31's lateral surface, on the one hand, can make compound barrier film have the effect of disinfecting and decontaminating, can effectively prolong the shelf life of interior food of membrane, on the other hand, when crowded altogether with PETG heat-seal layer 1/bonding layer 5/middle barrier layer 2/bonding layer 5/SPE film 31/bonding layer 5/nanometer titanium dioxide film 32 multilayer, nanometer titanium dioxide film 32 layer is as outmost, can play the effect of protection.
The middle barrier layer 2 mainly plays a role in blocking water vapor, oxygen and the like to protect objects in the film and prolong the preservation period or quality guarantee period of food in the film. In this embodiment, the intermediate barrier layer 2 includes a PA film layer 21 and an EVOH film layer 22 which are stacked, and the relative position relationship between the PA film layer 21 and the EVOH film layer 22 and the support layer 4 is not limited, that is, the sequence of each film layer of the composite barrier film may be the PETG heat-seal layer 1/PA film layer 21/EVOH film layer 22/SPE film 31/nano titanium dioxide film 32/support layer 4 shown in fig. 1, or the PETG heat-seal layer 1/EVOH film layer 22/PA film layer 21/SPE film 31/nano titanium dioxide film 32/support layer 4. The EVOH film layer 22 (ethylene-vinyl alcohol copolymer film) has good blocking effect on oxygen, water vapor, solvents and the like, and can be used as a barrier film middle layer to enhance the barrier performance of the composite film and enhance the protection effect on articles in the film after compounding; the PA film layer 21 (polyamide film) has the advantages of high mechanical strength, good toughness, wear resistance and heat resistance, can enhance the impact resistance, puncture resistance and other properties of the composite film after being used as a barrier film intermediate layer, and can further improve the barrier property of the composite film by being combined with the EVOH film layer 22. In order to improve the strength of the intermediate barrier layer 2, the EVOH film layer 22 and the PA film layer 21 are coextruded through the adhesive layer 5.
The support layer 4 is located on the outermost layer of the composite barrier film and mainly plays a role of supporting to protect the lower middle barrier layer 2 and the PETG heat-sealing layer 1. The support layer 4 is also a printed support surface as an outermost layer, and patterns or character information can be applied, pasted, or printed on the outer surface thereof. In this embodiment, the support layer 4 is a BOPP film layer (biaxially oriented polypropylene film), a BOPET film layer (biaxially oriented polyester film), or a BOPA film layer 21 (biaxially oriented nylon film).
The PETG heat-sealing layer 1 comprises a PETG (polyethylene terephthalate-1, 4-cyclohexanedimethanol ester) film. PETG has good viscidity, and it has high stability when compound with the barrier layer to make PETG heat-seal layer 1 when being torn, can thoroughly drop the packing carton and not remain at the bonding department, do benefit to packing carton recovery and recycle. Furthermore, the adhesion between the PETG and the PET material is smaller than that between the PP and the PE and the PET material of the common heat sealing layer, and when the packaging box needing film coating is made of the PET material, the PETG heat sealing layer 1 is easier to tear and pull away.
In this embodiment, the impact resistant layer 3 has a thickness such that it has sufficient impact resistance, and the thickness of the impact resistant layer is 20 to 35% of the thickness of the puncture resistant composite barrier film 100.
In addition, in the impact-resistant layer 3, the thickness of the SPE film 31 accounts for 70% to 80% of the thickness of the impact-resistant layer 3. In this way, the puncture resistance of the impact resistant layer 3 can be optimized.
Referring to fig. 2, in another embodiment of the puncture-resistant composite barrier film 100 of the present invention, the puncture-resistant composite barrier film 100 includes a PETG heat-sealing layer 1, a first adhesive layer 51, an EVA film layer 6, a second adhesive layer 52, an intermediate barrier layer 2, a third adhesive layer 53, an impact-resistant layer 3, a fourth adhesive layer 54, and a support layer 4, which are sequentially stacked from inside to outside. The EVA film layer 6 has good adhesive property and high safety, the adhesion between the PETG heat sealing layer 1 and the middle barrier layer 2 can be further enhanced by placing the EVA film layer 6 between the PETG heat sealing layer 1 and the middle barrier layer 2, and when a user tears off the composite barrier film, the PETG heat sealing layer 1 can be thoroughly separated from the packaging box; the same adhesive, such as a biodegradable polymer adhesive, can be used for the first adhesive layer 51, the second adhesive layer 52, the third adhesive layer 53, and the fourth adhesive layer 54, and different types of adhesives can be selected, such as maleic anhydride grafted ethylene acrylic acid copolymer, maleic anhydride grafted polyethylene copolymer, and the like.
Further, the PETG heat-sealing layer 1, the first adhesive layer 51, the EVA film layer 6, the second adhesive layer 52, the middle barrier layer 2, the third adhesive layer 53 and the impact-resistant layer 3 are compositely connected in a multi-layer co-extrusion mode, so that a whole can be formed by co-extrusion, the connection among the PETG heat-sealing layer 1, the impact-resistant layer 3 and other layers is further enhanced, and the puncture resistance and the easy tearing property of the puncture-resistant composite barrier film 100 are enhanced.
Based on this, the utility model discloses still provide a packing carton, the packing carton includes end box and epiphragma. Wherein, the bottom box comprises a sealing part and an accommodating bin; the lidding film comprises a puncture resistant composite barrier film 100 as described above. The puncture-resistant composite barrier film 100 is tiled above the containing bin, and the PETG heat-sealing layer 1 is attached to the sealing part, so that a sealing space is formed in the containing bin, and articles contained in the containing bin can be protected.
In this embodiment, end box is the PET material, compares thermoplastic layer materials such as PP commonly used, PE, and the adhesion is less between PETG and the PET, and when the epiphragma was torn from end box, PETG heat-seal layer 1 can break away from the portion of sealing easily, thoroughly, and does not remain in the department of sealing to the process of heat-seal layer was got rid of by the recycling to end box has been avoided.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (9)
1. The puncture-resistant composite barrier film is characterized by comprising a PETG (polyethylene terephthalate glycol) heat sealing layer, a middle barrier layer, an impact-resistant layer and a supporting layer which are sequentially stacked from inside to outside, wherein the impact-resistant layer comprises an SPE (solid phase polymer) film and a nano titanium dioxide film which are stacked from inside to outside.
2. The puncture resistant composite barrier film of claim 1 wherein the impact resistant layer has a thickness that is 20 to 35% of the thickness of the puncture resistant composite barrier film.
3. The puncture resistant composite barrier film of claim 1 wherein the SPE film thickness in the impact resistant layer is between 70% and 80% of the impact resistant layer thickness.
4. The puncture resistant composite barrier film of claim 1 comprising a PETG heat seal layer, a first adhesive layer, an EVA film layer, a second adhesive layer, an intermediate barrier layer, a third adhesive layer, an impact resistant layer, a fourth adhesive layer, and a support layer, stacked in that order from the inside to the outside.
5. The puncture resistant composite barrier film of claim 4 wherein the PETG heat seal layer, the first adhesive layer, the EVA film layer, the second adhesive layer, the intermediate barrier layer, the third adhesive layer, and the impact resistant layer are compositely joined by way of multi-layer coextrusion.
6. The puncture resistant composite barrier film of claim 1 wherein the intermediate barrier layer comprises a PA film layer and an EVOH film layer in a layered arrangement.
7. The puncture resistant composite barrier film of claim 1 wherein the support layer is a BOPP film layer, a BOPET film layer, or a BOPA film layer.
8. A package, comprising:
the bottom box comprises a sealing part and a containing bin, and is made of PET (polyethylene terephthalate);
a lidding film comprising the puncture resistant composite barrier film of any one of claims 1-7 wherein the PETG heat seal layer of the puncture resistant composite barrier film is bonded to the seal.
9. A pack according to claim 8 wherein the base container is of PET material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921222151.6U CN210590900U (en) | 2019-07-30 | 2019-07-30 | Puncture-resistant composite barrier film and packaging box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921222151.6U CN210590900U (en) | 2019-07-30 | 2019-07-30 | Puncture-resistant composite barrier film and packaging box |
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| Publication Number | Publication Date |
|---|---|
| CN210590900U true CN210590900U (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921222151.6U Expired - Fee Related CN210590900U (en) | 2019-07-30 | 2019-07-30 | Puncture-resistant composite barrier film and packaging box |
Country Status (1)
| Country | Link |
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| CN (1) | CN210590900U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114801401A (en) * | 2022-03-23 | 2022-07-29 | 毕玛时软包装（苏州）有限公司 | Clean easy-to-open cover film for liquid packaging |
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2019
- 2019-07-30 CN CN201921222151.6U patent/CN210590900U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114801401A (en) * | 2022-03-23 | 2022-07-29 | 毕玛时软包装（苏州）有限公司 | Clean easy-to-open cover film for liquid packaging |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200522 |