CN221562486U - Biodegradable film for vegetable and fruit packaging bag - Google Patents
Biodegradable film for vegetable and fruit packaging bag Download PDFInfo
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- CN221562486U CN221562486U CN202322935680.3U CN202322935680U CN221562486U CN 221562486 U CN221562486 U CN 221562486U CN 202322935680 U CN202322935680 U CN 202322935680U CN 221562486 U CN221562486 U CN 221562486U
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- layer
- film
- bopla
- packaging bag
- fruit packaging
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- 235000013311 vegetables Nutrition 0.000 title claims abstract description 43
- 235000013399 edible fruits Nutrition 0.000 title claims abstract description 40
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 39
- 239000010410 layer Substances 0.000 claims abstract description 76
- 239000012790 adhesive layer Substances 0.000 claims abstract description 15
- 239000002344 surface layer Substances 0.000 claims abstract description 14
- 239000012793 heat-sealing layer Substances 0.000 claims abstract description 4
- 239000004831 Hot glue Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000002131 composite material Substances 0.000 abstract description 8
- 238000013329 compounding Methods 0.000 abstract description 4
- 238000004321 preservation Methods 0.000 abstract description 4
- 239000000976 ink Substances 0.000 description 9
- 235000012055 fruits and vegetables Nutrition 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920002635 polyurethane Polymers 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 238000006757 chemical reactions by type Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000005022 packaging material Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000005003 food packaging material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 230000001953 sensory effect Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 241000219112 Cucumis Species 0.000 description 1
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 description 1
- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920006378 biaxially oriented polypropylene Polymers 0.000 description 1
- 239000011127 biaxially oriented polypropylene Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 230000000378 dietary effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Wrappers (AREA)
- Laminated Bodies (AREA)
Abstract
The utility model discloses a film for a biodegradable vegetable and fruit packaging bag, which is sequentially provided with an inner layer, an adhesive layer, a surface layer and a printing layer from inside to outside, wherein the inner layer is a heat-sealable BOPLA antifogging film, the heat-sealable BOPLA antifogging film sequentially comprises an antifogging layer, a BOPLA low-temperature heat sealing layer, a BOPLA main body layer and a BOPLA corona layer from inside to outside, and the BOPLA corona layer is in contact with the adhesive layer. The film for the biodegradable vegetable and fruit packaging bag adopts a composite structure obtained by compounding multiple layers of films, fully utilizes the advantages of each layer of film, coordinates and enhances the enhancement so as to realize good packaging performance and can meet various performance requirements of vegetable and fruit packaging; meanwhile, the scheme solves the problems that in the prior art, the antifogging property is poor, the sense and the preservation of vegetables and fruits are affected, and the environment is polluted due to the fact that the film is not biodegradable.
Description
Technical Field
The utility model relates to the technical field of food packaging materials, in particular to a film for a biodegradable vegetable and fruit packaging bag.
Background
Melon, fruit and vegetable are essentially purchased daily as a necessity for our daily dietary consumption. In the past, fruits and vegetables purchased in supermarkets come back, the bags are not opened in time, a layer of fog exists in the fruits and vegetables, the vegetables are wet or not quickly, and if the vegetables are always put in the bags, the vegetables start to rot for a long time.
Although vegetables and fruits in many supermarkets are packaged by packaging bags, sometimes fog-formed bagged fruits and vegetables are encountered when the vegetables and fruits go to the market and are purchased, and the fruits and vegetables are invisible, so that the fruits and vegetables are not clearly seen. The packaging bag is a common packaging bag, is easy to fog, seriously influences sensory experience of consumers, so that a manufacturer punches holes in the fresh-keeping bag to reduce the atomization degree in the bag, and the punched fresh-keeping bag reduces atomization but loses the fresh-keeping effect of the bag.
And the vegetable and fruit packaging bag belongs to disposable consumer products, most of films for the vegetable and fruit packaging bag at present are mainly made of PP or PET materials, and the PP and PET materials cannot be degraded, so that the packaging materials are discarded at will after use, and the white pollution is caused, so that the environment is harmed, and the problem of extremely large environment is solved.
Disclosure of utility model
The utility model aims to overcome the existing defects, and provides the film for the biodegradable vegetable and fruit packaging bag, which adopts a composite structure obtained by compounding multiple layers of films, fully utilizes the advantages of each layer of film, coordinates and enhances the coordination, so as to realize good packaging performance and can meet various performance requirements of vegetable and fruit packaging; meanwhile, the scheme solves the problems of poor antifogging property, influence on the sense and preservation of vegetables and fruits in the prior art, solves the problems of environment white pollution and the like caused by non-biodegradability of the film, and can effectively solve the problems in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a film for biodegradable vegetables and fruits wrapping bag has set gradually inlayer, adhesive linkage, top layer and printing layer in this film to outside, but the inlayer is the antifog film of heat-seal BOPLA, but and but the antifog film of heat-seal BOPLA includes antifog layer, BOPLA low temperature seal, BOPLA main part layer and BOPLA corona layer from inside to outside in proper order, and BOPLA corona layer and adhesive linkage contact.
As a preferred embodiment of the present utility model, the adhesive layer is a biodegradable moisture-reactive hot melt adhesive layer.
As a preferable technical scheme of the utility model, the surface layer is a double-sided corona BOPLA film layer.
As a preferable technical scheme of the utility model, the printing layer is a degradable water-based ink layer.
As a preferable embodiment of the present utility model, the thickness of the anti-fog layer is 0.5 micrometers to 1.0 micrometers.
As a preferable technical scheme of the utility model, the thickness of the BOPLA low-temperature heat seal layer is 15-25 microns.
As a preferable technical scheme of the utility model, the thickness of the adhesive layer is 0.8-1.5 micrometers.
As a preferable technical scheme of the utility model, the corona values of the two sides of the surface layer are all more than or equal to 38dyn/cm.
As a preferable technical scheme of the utility model, the thickness of the surface layer is 15-45 micrometers.
As a preferable embodiment of the present utility model, the thickness of the printing layer is 1.0 to 3.0 micrometers.
Compared with the prior art, the utility model has the beneficial effects that:
1. The film for the biodegradable vegetable and fruit packaging bag provided by the example of the utility model adopts a heat-sealable BOPLA antifogging film as an inner layer 1, and comprises an antifogging layer 101, a BOPLA low-temperature heat sealing layer 102, a BOPLA main body layer 103 and a BOPLA corona layer 104; not only has excellent antifogging property, but also has excellent heat sealing strength.
1. The film for the biodegradable vegetable and fruit packaging bag disclosed by the utility model has the advantages that the adhesive layer 2 adopts the biodegradable moisture reaction type hot melt adhesive, and the adhesive strength to a base material after solidification is high, and the solvent resistance and the heat resistance are high; in addition, the hot melt adhesive has excellent biodegradability.
1. The film for the biodegradable vegetable and fruit packaging bag provided by the utility model adopts the BOPLA film layer with double-sided corona as the surface layer 3, and has excellent adhesion performance on the inner surface and excellent printing adaptability on the outer surface due to the adoption of the double-sided corona.
1. The film for the biodegradable vegetable and fruit packaging bag provided by the utility model has the advantages that the printing layer 4 adopts degradable water-based ink, and no harmful solvent volatilizes in the production process, so that the film is environment-friendly.
1. The film for the biodegradable vegetable and fruit packaging bag disclosed by the utility model adopts a composite structure obtained by compounding multiple layers of films, fully utilizes the advantages of each layer of film, coordinates and enhances the enhancement so as to realize good packaging performance and can meet various performance requirements of vegetable and fruit packaging; meanwhile, the scheme solves the problems that in the prior art, the antifogging property is poor, the sense and the preservation of vegetables and fruits are affected, and the environment is polluted due to the fact that the film is not biodegradable.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model.
In the figure: 1 inner layer, 101 anti-fog layer, 102BOPLA low temperature heat seal layer, 103BOPLA main body layer, 104BOPLA corona layer, 2 adhesive layer, 3 surface layer and 4 printing layer.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, the present utility model provides a technical solution: the film for the biodegradable vegetable and fruit packaging bag is provided with an inner layer 1, an adhesive layer 2, a surface layer 3 and a printing layer 4 from inside to outside, wherein the inner layer 1 is a heat-sealable BOPLA antifogging film with the thickness of 15-25 microns, and the thickness of the antifogging layer 101 is 0.5-1.0 microns; preferably, the heat-sealable BOPLA antifogging film of Xiamen long plastic industry limited company can be adopted, so that the heat-sealable BOPLA antifogging film not only has excellent heat-sealing performance, but also has excellent antifogging performance; other existing heat sealable BOPLA anti-fog films may also be employed; and the heat-sealable BOPLA antifogging film comprises, in order from inside to outside, an antifogging layer 101, a BOPLA low temperature heat seal layer 102, a BOPLA body layer 103 and a BOPLA corona layer 104, and the BOPLA corona layer 104 is in contact with the adhesive layer 2.
Further, the adhesive layer 2 is a biodegradable moisture reaction type hot melt adhesive layer with the thickness of 0.8-1.5 micrometers; preferably, the moisture-reactive hot melt adhesive obtained by the method for preparing the biodegradable moisture-reactive hot melt adhesive with the publication number of CN103555254A has high adhesive strength, solvent resistance and heat resistance; other existing biodegradable moisture-reactive hot melt adhesives may also be used.
Furthermore, the surface layer 3 is a BOPLA film layer with double-sided corona, the thickness is 15-45 micrometers, and the double-sided corona value is not less than 38dyn/cm.
Further, the printing layer 4 is a degradable water-based ink layer with the thickness of 1.0-3.0 micrometers; preferably, the degradable aqueous polyurethane ink product obtained by adopting the preparation method of the degradable aqueous polyurethane ink and the product thereof with the publication number of CN114874659A has good pigment wettability, drying property and printability, has good adhesion property to a substrate, is easy to degrade, and meets new environmental protection requirements; other existing degradable aqueous inks may also be used.
Further, the thickness of BOPLA low temperature heat seal layer 102 is 15 microns to 25 microns.
Example 1
The film for the biodegradable vegetable and fruit packaging bag is provided with an inner layer 1, an adhesive layer 2, a surface layer 3 and a printing layer 4 from inside to outside.
The inner layer 1 is a heat-sealable BOPLA antifogging film and comprises an antifogging layer 101, a BOPLA low-temperature heat sealing layer 102, a BOPLA main body layer 103 and a BOPLA corona layer 104; the thickness of the inner layer 1 is 15 micrometers, wherein the thickness of the anti-fog layer 101 is 0.5 micrometers; preferably, the embodiment adopts the heat-sealable BOPLA antifogging film of Xiamen Long Plastic industries, inc., which has excellent heat-sealing performance and antifogging performance.
The adhesive layer 2 is a biodegradable moisture reaction type hot melt adhesive with the thickness of 0.8 micron; preferably, the embodiment adopts the moisture-reactive hot melt adhesive which is obtained by the preparation method of the biodegradable moisture-reactive hot melt adhesive with the publication number CN103555254A, and has the advantages of high bonding strength, high solvent resistance and high heat resistance;
The surface layer 3 is a BOPLA film layer with double-sided corona, the thickness is 15 micrometers, and the double-sided corona values are 38dyn/cm; preferably, the present embodiment uses a biaxially oriented polypropylene film, which is a film of the company Xiamen Long Plastic industries, inc., and has good adhesion properties, good printability, and biodegradability.
The printing layer 4 is a degradable water-based ink layer with the thickness of 1.0 micron, and preferably, the degradable water-based polyurethane ink product obtained by adopting the preparation method of the degradable water-based polyurethane ink with the publication number of CN114874659A and the product thereof in the embodiment has good pigment wettability, drying property and printability, has good adhesion performance to a substrate, is easy to degrade, and meets new environmental protection requirements.
As can be seen from the production cost of the combined composite film through multiple tests and comparison, the cost performance of the composite film of the embodiment is highest, and the related performance of the composite film is tested, and the specific result data are shown in the following table:
Table 1 test of composite film properties of example 1
From the above table, it can be seen that the film for biodegradable vegetable and fruit packaging bags of the embodiment has excellent anti-fog performance, prevents water vapor from fogging on the surface of the film, has high transparency, and increases sensory experience of consumers. Meanwhile, the film has high water vapor transmittance and oxygen transmittance, so that the environment inside the vegetable and fruit packaging bag is consistent at all times with the environment outside, and the freshness of vegetables and fruits is improved. Meanwhile, the packaging material has excellent biodegradability, prevents the packaging material from causing white pollution after use and forming environmental hazard and other problems, and can be widely applied to the field of food packaging materials, in particular to vegetable and fruit packaging bags.
The utility model adopts a composite structure obtained by compounding multiple layers of films, fully utilizes the advantages of each layer of film, coordinates and enhances the enhancement so as to realize good packaging performance and can meet various performance requirements of vegetable and fruit packaging; meanwhile, the scheme solves the problems that in the prior art, the antifogging property is poor, the sense and the preservation of vegetables and fruits are affected, and the environment is polluted due to the fact that the film is not biodegradable.
The non-disclosed parts of the utility model are all prior art, and the specific structure, materials and working principle thereof are not described in detail. Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A film for a biodegradable vegetable and fruit packaging bag is characterized in that: the film is internally and externally provided with an inner layer (1), an adhesive layer (2), a surface layer (3) and a printing layer (4) in sequence, wherein the inner layer (1) is a heat-sealable BOPLA antifogging film, and the heat-sealable BOPLA antifogging film comprises an antifogging layer (101), a BOPLA low-temperature heat sealing layer (102), a BOPLA main body layer (103) and a BOPLA corona layer (104) in sequence from inside to outside, and the BOPLA corona layer (104) is in contact with the adhesive layer (2).
2. The film for biodegradable vegetable and fruit packaging bag according to claim 1, wherein: the adhesive layer (2) is a biodegradable moisture-reactive hot melt adhesive layer.
3. The film for biodegradable vegetable and fruit packaging bag according to claim 1, wherein: the surface layer (3) is a BOPLA film layer with double corona surfaces.
4. The film for biodegradable vegetable and fruit packaging bag according to claim 1, wherein: the printing layer (4) is a degradable water-based ink layer.
5. The film for biodegradable vegetable and fruit packaging bag according to claim 1, wherein: the thickness of the anti-fog layer (101) is 0.5-1.0 micrometers.
6. The film for biodegradable vegetable and fruit packaging bag according to claim 1, wherein: the thickness of the BOPLA low temperature heat seal layer (102) is 15-25 microns.
7. The film for biodegradable vegetable and fruit packaging bag according to claim 1, wherein: the thickness of the adhesive layer (2) is 0.8-1.5 micrometers.
8. The film for biodegradable vegetable and fruit packaging bag according to claim 3, wherein: the corona values of the two surfaces of the surface layer (3) are all more than or equal to 38dyn/cm.
9. The film for biodegradable vegetable and fruit packaging bag according to claim 1, wherein: the thickness of the surface layer (3) is 15-45 micrometers.
10. The film for biodegradable vegetable and fruit packaging bag according to claim 1, wherein: the thickness of the printing layer (4) is 1.0-3.0 micrometers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322935680.3U CN221562486U (en) | 2023-10-31 | 2023-10-31 | Biodegradable film for vegetable and fruit packaging bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322935680.3U CN221562486U (en) | 2023-10-31 | 2023-10-31 | Biodegradable film for vegetable and fruit packaging bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221562486U true CN221562486U (en) | 2024-08-20 |
Family
ID=92269055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322935680.3U Active CN221562486U (en) | 2023-10-31 | 2023-10-31 | Biodegradable film for vegetable and fruit packaging bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221562486U (en) |
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2023
- 2023-10-31 CN CN202322935680.3U patent/CN221562486U/en active Active
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