CN216612350U - Novel food packaging material and cheese packaging material - Google Patents
Novel food packaging material and cheese packaging material Download PDFInfo
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- CN216612350U CN216612350U CN202122101308.3U CN202122101308U CN216612350U CN 216612350 U CN216612350 U CN 216612350U CN 202122101308 U CN202122101308 U CN 202122101308U CN 216612350 U CN216612350 U CN 216612350U
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- layer
- evoh
- packaging material
- food packaging
- novel food
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- 239000005003 food packaging material Substances 0.000 title claims abstract description 21
- 235000013351 cheese Nutrition 0.000 title claims abstract description 18
- 239000005022 packaging material Substances 0.000 title claims description 8
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims abstract description 49
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000004715 ethylene vinyl alcohol Substances 0.000 claims abstract description 41
- 239000004698 Polyethylene Substances 0.000 claims abstract description 40
- 239000002131 composite material Substances 0.000 claims abstract description 25
- 239000010410 layer Substances 0.000 claims description 186
- 239000000463 material Substances 0.000 claims description 30
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 230000000845 anti-microbial effect Effects 0.000 claims 1
- 239000007888 film coating Substances 0.000 claims 1
- 238000009501 film coating Methods 0.000 claims 1
- 230000004888 barrier function Effects 0.000 abstract description 21
- 235000013305 food Nutrition 0.000 abstract description 14
- 239000004793 Polystyrene Substances 0.000 description 28
- 238000012856 packing Methods 0.000 description 12
- 239000007789 gas Substances 0.000 description 10
- 239000007788 liquid Substances 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 7
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 7
- 230000035699 permeability Effects 0.000 description 6
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 229920002223 polystyrene Polymers 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 101710113246 Pectinesterase 3 Proteins 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
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- Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
- Laminated Bodies (AREA)
Abstract
The utility model provides a novel food packaging material, which comprises a first layer, a second layer and a third layer; the first layer is a PET layer; the second layer is a composite layer consisting of PS and EVOH; the third layer is a composite layer consisting of PE and EVOH; the sum of the thicknesses of the first layer, the second layer and the third layer is 0.01-10 mm; the utility model also provides a cheese package which is made of the novel food packaging material. The novel food packaging material has good barrier property; the barrier property of the cheese package can meet the requirement of food packages with higher performance requirements.
Description
Technical Field
The utility model relates to the field of food packaging, in particular to a novel food packaging material and a cheese packaging material.
Background
Cheese is a solid milk product prepared by fermentation, cheese is easy to deteriorate when being stored due to extremely high fat content and water content, and therefore a package for packaging cheese needs to have good oxygen and water insulation performance.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the existing cheese in the barrier property of the packing material and provide a novel food packing material with good barrier property.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a novel food packaging material comprising a first layer, a second layer and a third layer; the first layer is a PET layer; the second layer is a composite layer consisting of PS and EVOH; the third layer is a composite layer consisting of PE and EVOH; the sum of the thicknesses of the first, second and third layers is 0.01-10 mm.
Compared with the prior art, the second layer of the novel food packaging material is a composite layer consisting of PS (polystyrene) and EVOH (ethylene-vinyl alcohol copolymer), and the third layer of the novel food packaging material is a composite layer consisting of PE (polyethylene) and EVOH (ethylene-vinyl alcohol copolymer), so that the second layer and the third layer are used for double separation of gas and liquid in the external environment under the condition of controlling the thickness of the composite film material, and the phenomenon that the gas and the liquid permeate the novel food packaging material to cause food spoilage is avoided; in addition, the existing packing materials are known to deform and have micropores after being collided, so that the barrier property of the packing materials is reduced and the requirement of food on the barrier property of the packing materials cannot be met; meanwhile, PS has good heat insulation property, and can avoid the influence on the barrier property of the packaging material applied by the utility model due to higher external environment temperature.
Preferably, the second layer comprises a PS layer, an EVOH layer and a PS layer from top to bottom.
The second layer adopts a combined structure of PS-EVOH-PS, so that a multilayer barrier structure is formed, and the barrier property and the form stability of the second layer are improved.
Preferably, the third layer comprises a PE layer, an EVOH layer and a PE layer from top to bottom.
Because the biocompatibility of the PE is good, the PE layer is arranged on the side, away from the second layer, of the EVOH layer, the PE layer can be conveniently and directly used for coating food, and in addition, because the compatibility of the PE and the PS is good, the probability that the normal use of the food is influenced by the delamination after the second layer and the third layer are compounded is reduced.
Preferably, the side of the PE layer positioned at the lower part of the EVOH layer, which is far away from the second layer, is provided with a silver ion antibacterial coating layer.
By adopting the arrangement mode, the PE layer is far away from the second layer to inhibit the growth of bacteria, so that the shelf life of the food coated by the utility model is effectively prolonged.
Preferably, the outer layer is arranged outside the first layer and contains aluminum and/or aluminum oxide.
By arranging the outer layer containing aluminum and/or aluminum oxide on the outer side of the first layer, on one hand, the aluminum oxide (aluminum and oxygen react) can form a compact protective layer, so that the permeability of gas and water is further reduced, and the barrier property of the utility model is further improved.
Preferably, the ratio of the thicknesses of the first, second and third layers is 2-5:5-8: 1-3.
The three layers of materials are arranged according to the proportion, so that the barrier property can be kept at the optimal level while the proper thickness of the utility model is ensured.
Another object of the present invention is to provide a cheese container, which comprises a bag body, wherein the bag body is provided with an accommodating cavity, the bag body is formed by edge sealing of a film material, and the film material comprises a first layer, a second layer and a third layer; the first layer is a PET layer; the second layer is a composite layer consisting of PS and EVOH; the third layer is a composite layer consisting of PE and EVOH.
Preferably, the second layer comprises a PS layer, an EVOH layer and a PS layer from top to bottom.
Preferably, the third layer comprises a PE layer, an EVOH layer and a PE layer from top to bottom.
Preferably, the outer layer is arranged outside the first layer and contains aluminum and/or aluminum oxide.
Compared with the prior art, the cheese packaging material is made of a three-layer composite film material, the second layer of the film material is a composite layer composed of PS (polystyrene) and EVOH (ethylene-vinyl alcohol copolymer), and the third layer of the film material is a composite layer composed of PE (polyethylene) and EVOH (ethylene-vinyl alcohol copolymer), so that double barrier of gas and liquid in the external environment is realized by the second layer and the third layer, and cheese deterioration caused by gas and liquid permeation is avoided.
Drawings
FIG. 1 is a cross-sectional view of the first embodiment;
FIG. 2 is a sectional view of the second embodiment;
FIG. 3 is a sectional view of the third embodiment;
FIG. 4 is a schematic view of the fourth embodiment.
Description of reference numerals:
1 the first layer, 2 the second layer, 3 the third layer, 4 outer layers, 5 antibiotic rete of scribbling of silver ion, 6 membrane materials, 7 the bag bodies.
Detailed Description
Embodiments of the present invention are described below with reference to the accompanying drawings:
example one
Referring to fig. 1, the novel food packaging material of the present embodiment comprises a first layer 1, a second layer 2 and a third layer 3; the first layer 1 is a PET layer; the second layer 2 is a composite layer consisting of PS and EVOH; the third layer 3 is a composite layer consisting of PE and EVOH; the sum of the thicknesses of the first layer 1, the second layer 2 and the third layer 3 is 0.01 to 10 mm.
The second layer 2 comprises a PS layer, an EVOH layer and a PS layer from top to bottom.
Specifically, the PS layer, the EVOH layer, and the PS layer are bonded to each other by an adhesive layer formed of an adhesive.
The second layer 2 adopts a combined structure of PS-EVOH-PS, so that a multilayer barrier structure is formed, and the barrier property and the form stability of the second layer 2 are improved.
The third layer 3 includes a PE layer, an EVOH layer, and a PE layer from top to bottom.
Specifically, the PE layer, EVOH layer and PE layer are bonded to each other by an adhesive layer formed of an adhesive.
Because the biocompatibility of the PE is good, the PE layer is arranged on the side, away from the second layer 2, of the EVOH layer, so that the PE layer can be conveniently and directly used for coating food, and in addition, because the compatibility of the PE and the PS is good, the probability that the normal use of the food is influenced because the second layer 2 and the third layer 3 are laminated after being compounded is reduced.
The ratio of the thicknesses of the first layer 1, the second layer 2 and the third layer 3 is 2-5:5-8: 1-3.
The three layers of materials are arranged according to the proportion, so that the barrier property can be kept at the optimal level while the proper thickness of the utility model is ensured.
The ratio of the thicknesses of the materials in the second layer 2 is PS: EVOH (3) in the following ratio: PS ═ 1-2:3: 1-2.
The thickness ratio of the materials in the third layer 3 is EVOH: PE-3: 1-2.
The first layer 1, the second layer 2 and the third layer 3 are bonded into a whole by thermal compounding or by an adhesive.
TABLE 1 Permeability of the inventive substances
| Name of substance | Permeability g/(m)2·24h) |
| Oxygen gas | 0.7 |
| Carbon dioxide | 1.2 |
| Steam of water | 0.0055 |
TABLE 2 substance Permeability of PET/EVOH/PE composite film
| Name of substance | Permeability g/(m)2·24h) |
| Oxygen gas | 1.5 |
| |
3 |
| Steam vapor | 0.0107 |
Compared with the prior art, the second layer 2 of the novel food packaging material is a composite layer composed of PS (polystyrene) and EVOH (ethylene-vinyl alcohol copolymer), and the third layer 3 of the novel food packaging material is a composite layer composed of PE (polyethylene) and EVOH (ethylene-vinyl alcohol copolymer), so that the second layer 2 and the third layer 3 are used for double separation of gas and liquid in the external environment under the condition of controlling the thickness of the composite film material, and the phenomenon that the gas and the liquid permeate the novel food packaging material to cause food spoilage is avoided; in addition, the existing packing materials are known to deform and generate micropores after being collided, so that the barrier property of the packing materials is reduced and the requirement of food on the barrier property of the packing materials cannot be met, and the PS and the EVOH in the second layer 2 have good rigidity, so that the form stability of the packing materials is ensured, the micropores cannot be generated when the packing materials are impacted, the food is protected, and the barrier property of the packing materials applying the packing materials is ensured not to be reduced; meanwhile, PS has good heat insulation property, and can avoid the influence on the barrier property of the packaging material applied by the utility model due to higher external environment temperature.
Example two
Referring to fig. 2, the present embodiment is a modified version of the first embodiment, and the present embodiment is different from the first embodiment in that: and the outer layer 4 is arranged outside the first layer 1, and the outer layer 4 contains aluminum and/or aluminum oxide.
The outer layer 4 is compounded to the outer side of the first layer 1 in an electroplating mode.
By arranging the outer layer 4 containing aluminum and/or aluminum oxide on the outer side of the first layer 1, on one hand, the aluminum oxide (the aluminum reacts with oxygen) can form a compact protective layer, so that the permeability of gas and water is further reduced, and the barrier property of the utility model is further improved, and in addition, the outer layer 4 has good ductility, and micropores can be further prevented from occurring when the utility model is impacted.
EXAMPLE III
Referring to fig. 3, the present embodiment is a modified solution of the first embodiment or the second embodiment, and the present embodiment is different from the first embodiment or the second embodiment in that: and a silver ion antibacterial coating film layer 5 is arranged on one side of the PE layer positioned at the lower part of the EVOH layer, which is far away from the second layer 2.
By adopting the arrangement mode, the PE layer is far away from the second layer 2 to inhibit the growth of bacteria, so that the shelf life of the food coated by the utility model is effectively prolonged.
In a modification of this embodiment, the outer layer of the second embodiment may be disposed outside the first layer 1, and although the drawing of this embodiment does not show this modification, this modification still falls within the protection scope of the present invention.
Example four
Referring to fig. 1 and 4, or fig. 2 and 4, or fig. 3 and 4, another object of the present invention is to provide a cheese package using the novel food packaging material of the first embodiment or the second embodiment or the third embodiment, which includes a bag body 7, wherein the bag body 7 is provided with a containing cavity (not shown in the figure), the bag body 7 is formed by edge sealing of a film material 6, and the film material 6 is the novel food packaging material of the first embodiment or the second embodiment or the third embodiment.
Compared with the prior art, the cheese packaging material is made of a three-layer composite film material, the second layer of the film material 6 is a composite layer composed of PS (polystyrene) and EVOH (ethylene-vinyl alcohol copolymer), and the third layer is a composite layer composed of PE (polyethylene) and EVOH (ethylene-vinyl alcohol copolymer), so that double barrier of gas and liquid in the external environment is realized by the second layer and the third layer, and cheese deterioration caused by gas and liquid permeation is avoided.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, which fall within the scope and spirit of the above description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and modifications and variations of the present invention are also intended to fall within the scope of the appended claims. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (8)
1. A novel food packaging material, characterized by comprising a first layer, a second layer and a third layer;
the first layer is a PET layer;
the second layer is a composite layer consisting of PS and EVOH;
the third layer is a composite layer consisting of PE and EVOH;
the sum of the thicknesses of the first, second and third layers is 0.01-10 mm.
2. The novel food packaging material of claim 1 wherein said second layer comprises, from top to bottom, a PS layer, an EVOH layer, and a PS layer.
3. A novel food packaging material according to claim 1, characterized in that said third layer comprises, from top to bottom, a PE layer, an EVOH layer and a PE layer.
4. A novel food packaging material according to claim 3, characterized in that the PE layer below the EVOH layer is provided with a silver ion antimicrobial film coating layer on the side away from the second layer.
5. A novel food packaging material according to claim 1, characterized in that the ratio of the thickness of the first, second and third layer is 2-5:5-8: 1-3.
6. The cheese packaging material is characterized by comprising a bag body, wherein the bag body is provided with an accommodating cavity and is formed by sealing edges of a film material, and the film material comprises a first layer, a second layer and a third layer;
the first layer is a PET layer;
the second layer is a composite layer consisting of PS and EVOH;
the third layer is a composite layer consisting of PE and EVOH.
7. The cheese wrapper of claim 6, wherein the second layer comprises, from top to bottom, a PS layer, an EVOH layer, and a PS layer.
8. The cheese wrapper of claim 6, wherein the third layer includes, from top to bottom, a PE layer, an EVOH layer, and a PE layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122101308.3U CN216612350U (en) | 2021-09-01 | 2021-09-01 | Novel food packaging material and cheese packaging material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122101308.3U CN216612350U (en) | 2021-09-01 | 2021-09-01 | Novel food packaging material and cheese packaging material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216612350U true CN216612350U (en) | 2022-05-27 |
Family
ID=81682032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122101308.3U Active CN216612350U (en) | 2021-09-01 | 2021-09-01 | Novel food packaging material and cheese packaging material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216612350U (en) |
-
2021
- 2021-09-01 CN CN202122101308.3U patent/CN216612350U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 528211 Workshop B, No.1 Fuda Road, Baixi Science and Technology Industrial Park, Xiqiao Town, Nanhai District, Foshan City, Guangdong Province Patentee after: Foshan Lida Packaging New Materials Co.,Ltd. Country or region after: China Address before: No.1 Fuda Road, Xiqiao Technology Industrial Park, Nanhai District, Foshan City, Guangdong Province Patentee before: LD PACKAGING Co.,Ltd. Country or region before: China |