CN215152739U - High-quality biodegradable packaging film and packaging bag - Google Patents
High-quality biodegradable packaging film and packaging bag Download PDFInfo
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- CN215152739U CN215152739U CN202120037292.1U CN202120037292U CN215152739U CN 215152739 U CN215152739 U CN 215152739U CN 202120037292 U CN202120037292 U CN 202120037292U CN 215152739 U CN215152739 U CN 215152739U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Abstract
The utility model provides a high-quality biological full-degradable packaging film and a packaging bag, wherein the film comprises a first biological full-degradable film layer, a paper layer and a second biological full-degradable film layer; the first biological full-degradable film layer and the paper layer are bonded through a first glue layer, and the paper layer and the second biological full-degradable film layer are bonded through a second glue layer. The utility model discloses the advantage: the designed film comprises a three-layer structure of a first fully biodegradable film layer, a paper layer and a second fully biodegradable film layer, and compared with the existing single-layer film structure, the thickness of the designed film can be increased, and the structural strength and the bearing capacity are improved; the film adopts the first biological full-degradable film layer and the second biological full-degradable film layer, can achieve the biological full-degradable effect, and has the advantages of environmental protection and no environmental pollution; in addition, the middle layer of the film adopts a paper layer, the paper layer has the characteristics of degradation and environmental protection and is soft, the manufactured packaging bag can meet the paper-plastic environmental protection function, and the paper layer has fiber grains, so that the stereoscopic impression can be increased.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to an environmental protection packaging material field, in particular to high-quality biodegradable packaging film and wrapping bag.
[ background of the invention ]
The packing bag is a bag for packing various articles, so that the goods are conveniently transported and easily stored in the production flow process, and the product quality of the articles is ensured. At present, the packaging bag is widely applied to daily life and industrial production. The existing packaging bag film has poor flexibility, and the existing packaging bag film cannot be completely degraded, so that the environment is easily polluted; meanwhile, the single-layer film printing ink has poor adhesion force and is easy to rub off. In view of the above problems, the present inventors have conducted extensive studies and have made the present invention.
[ Utility model ] content
The to-be-solved technical problem of the utility model lies in providing a high-quality biodegradable packaging film and wrapping bag, solves the compliance that current wrapping bag film exists poor, can not degrade completely, the easy problem of polluted environment.
The utility model discloses a realize like this:
in a first aspect, a high quality fully biodegradable packaging film comprises a first fully biodegradable film layer, a paper layer, and a second fully biodegradable film layer; the first biological full-degradable film layer and the paper layer are bonded through a first glue layer, and the paper layer and the second biological full-degradable film layer are bonded through a second glue layer.
Further, the lower surface of the first completely biodegradable film layer is printed with an ink layer.
Further, the first and second fully biodegradable film layers are made of PBAT material and modified corn starch.
Further, the first and second biodegradable film layers are made of PBAT material and PLA material.
Further, the paper layer has a weight of 12-25 g per square meter.
Further, the paper layer has a weight of 18 grams per square meter.
Further, the thickness of the first biological full degradable film layer is 20-90 microns.
Further, the thickness of the first biological full degradable film layer is 30-60 microns.
Further, the thickness of the second full biodegradable film layer is 20-90 microns.
Further, the thickness of the second full biodegradation film layer is 30-60 microns.
Furthermore, the paper layer is a double-adhesive-cotton paper layer coated with a first adhesive layer and a second adhesive layer.
In a second aspect, a package is formed using the film lap joint described above.
Furthermore, the front surface of the packaging bag is provided with gold stamping patterns or gold stamping characters.
Further, the front or the back of the packaging bag is provided with an opening.
Furthermore, an adhesive film is arranged on the opening.
Further, the back of the packaging bag is provided with a label.
The utility model has the advantages that:
1. the technical scheme design film of the embodiment of the utility model comprises a three-layer structure of a first full biodegradable film layer, a paper layer and a second full biodegradable film layer, and compared with the existing single-layer film structure, the film can increase the thickness and improve the structural strength and the bearing capacity; meanwhile, the film adopts the first biological full-degradable film layer and the second biological full-degradable film layer, so that the biological full-degradable effect can be achieved, and the film has the advantages of environmental protection and no environmental pollution. In addition, the middle layer of the film adopts a paper layer, and the paper layer has the characteristics of environmental protection and softness in degradation, can ensure that the prepared packaging bag meets the requirements of paper-plastic degradation, and is environment-friendly; meanwhile, the paper layer also has fiber grains, so that the green and environment-friendly sense and the concave-convex stereoscopic impression can be increased.
2. Printing ink layer makes the printing ink layer be in the intermediate position at the lower surface printing ink layer of first biological full degradation rete for when using this technical scheme three layer construction complex wrapping bag, can avoid printing ink well and receive external friction and the problem of falling black.
[ description of the drawings ]
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
FIG. 1 is a layer structure diagram of the high-quality biodegradable packaging film of the present invention.
Fig. 2 is a schematic front view of a package of the present invention.
Fig. 3 is a schematic back view of a package of the present invention.
Description of reference numerals:
100-film, 1-first biological fully-degradable film layer, 11-ink layer, 2-paper layer, 21-first glue layer, 22-second glue layer, 3-second biological fully-degradable film layer, 4-gold stamping pattern, 5-opening, 6-adhesive film and 7-label.
[ detailed description ] embodiments
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are 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 work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1 to 3, a high-quality biodegradable packaging film 100 of the present invention includes a first biodegradable film layer 1, a paper layer 2 and a second biodegradable film layer 3; the first biological full-degradable film layer 1 and the paper layer 2 are bonded through a first glue layer 21, and the paper layer 2 and the second biological full-degradable film layer 3 are bonded through a second glue layer 22, and can be bonded through a hot pressing process. When the film 100 is used for manufacturing a packaging bag, the first biological fully-degradable film layer 1 is arranged outside the packaging bag, and the second biological fully-degradable film layer 3 is arranged inside the packaging bag.
The technical scheme of the utility model designs that the film 100 comprises a three-layer structure of a first biological full-degradable film layer 1, a paper layer 2 and a second biological full-degradable film layer 3, compared with the existing single-layer film structure, the thickness can be increased, and the structural strength and the bearing capacity are improved; meanwhile, the film 100 adopts the first biological full-degradable film layer 1 and the second biological full-degradable film layer 3, so that the biological full-degradable effect can be achieved, and the film has the advantages of environmental protection and no environmental pollution. In addition, the middle layer of the film 100 adopts the paper layer 2, and the paper layer 2 has the characteristics of degradation, environmental protection and softness, so that the prepared packaging bag can meet the requirements of paper-plastic degradation and is environment-friendly; meanwhile, the paper layer 2 also has fiber grains, so that the green and environment-friendly sense and the concave-convex stereoscopic impression can be increased.
In this embodiment, the lower surface of the first biodegradable film layer 1 is printed with an ink layer 11. Printing ink layer 11 makes ink layer 11 be in the intermediate position through the lower surface printing ink layer 11 at first biological full degradation rete 1 for when using this technical scheme three layer construction compound wrapping bag, can avoid printing ink well and receive external friction and the problem of china ink that falls.
In this embodiment, the first and second biodegradable film layers 1 and 3 are made of PBAT material and modified corn starch.
Wherein, the PBAT material belongs to thermoplastic biodegradable plastic, is a copolymer of butanediol adipate and butanediol terephthalate, has the characteristics of PBA and PBT, and has better ductility and elongation at break as well as better heat resistance and impact performance; in addition, the biodegradable plastic has excellent biodegradability, and is one of the best degradable materials which are very active in the research of the current biodegradable plastics and are applied to the market. The modified corn starch has good degradability and does not cause pollution to the environment. The PBAT material and the modified corn starch in the first biological full-degradable film layer 1 and the second biological full-degradable film layer 3 are good biological degradable materials, so no burden is caused to the environment.
In the embodiment, the too heavy or too light of the paper layer 2 affects the production and use of the packaging bag, and the specification of the paper layer 2 is preferably selected, and the specification of the paper layer 2 is 12-25 g per square meter. In practical applications, the size of the paper layer 2 may be any one of 12 g, 13 g, 14 g, 15 g, 16 g, 17 g, 18 g, 19 g, 20 g, 21 g, 22 g, 23 g, 24 g, and 25 g.
In a preferred embodiment, the paper layer 2 has a weight of 18 grams per square meter.
In this embodiment, the use of the packaging bag is affected by the excessive thickness or the excessive thinness of the first fully biodegradable film layer 1, the thickness of the first fully biodegradable film layer 1 is preferably selected by the scheme, and the thickness of the first fully biodegradable film layer 1 is 20-90 micrometers.
In a preferred embodiment, the thickness of the first biodegradable film layer 1 is 30-60 μm. In specific implementation, the thickness of the first fully biodegradable film layer 1 may be set to any one of 30 microns, 31 microns, 32 microns, 33 microns, 34 microns, 35 microns, 36 microns, 37 microns, 38 microns, 39 microns, 40 microns, 41 microns, 42 microns, 43 microns, 44 microns, 45 microns, 46 microns, 47 microns, 48 microns, 49 microns, 50 microns, 51 microns, 52 microns, 53 microns, 54 microns, 55 microns, 56 microns, 57 microns, 58 microns, 59 microns, and 60 microns.
In this embodiment, the use of the packaging bag is affected by the excessive thickness or the excessive thinness of the second fully biodegradable film layer 3, the thickness of the second fully biodegradable film layer 3 is preferably selected by the scheme, and the thickness of the second fully biodegradable film layer 3 is 20-90 micrometers.
In a preferred embodiment, the thickness of the second fully biodegradable film layer 3 is 30 to 60 μm. In specific implementation, the thickness of the second fully biodegradable film layer 3 may be set to be any one of 30 micrometers, 31 micrometers, 32 micrometers, 33 micrometers, 34 micrometers, 35 micrometers, 36 micrometers, 37 micrometers, 38 micrometers, 39 micrometers, 40 micrometers, 41 micrometers, 42 micrometers, 43 micrometers, 44 micrometers, 45 micrometers, 46 micrometers, 47 micrometers, 48 micrometers, 49 micrometers, 50 micrometers, 51 micrometers, 52 micrometers, 53 micrometers, 54 micrometers, 55 micrometers, 56 micrometers, 57 micrometers, 58 micrometers, 59 micrometers and 60 micrometers.
The technical scheme of the utility model is through preferring the thickness of first biological complete degradation rete 1 is 30-60 microns, the thickness of second biological complete degradation rete 3 is 30-60 microns for the whole thickness of film has both realized the purpose of bodiness for the film thickness of traditional wrapping bag, can not the bodiness too much again, can make the wrapping bag have better compliance.
In this embodiment, the paper layer 2 is a double-glued-cotton paper layer coated with a first glue layer 21 and a second glue layer 22, that is, one side of the paper layer 2 is coated with the first glue layer 21, and the other side is coated with the second glue layer 22; the softness can be increased by using the cotton paper layer.
Example 2
Referring to fig. 1 to 3, the present invention relates to a packing bag formed by overlapping the above-mentioned films 100. The specific structure of the film 100 is described in example 1, and will not be repeated here. When concrete implementation, the wrapping bag need use multi-disc film 100 to form through the overlap joint process, because the material that first biological full degradation rete 1 and second biological full degradation rete 3 used in this scheme is the same (all is PBAT material and modified cornstarch), consequently first biological full degradation rete 1 and second biological full degradation rete 3 itself just can fuse the overlap joint in the overlap joint process, both guaranteed fastness and gas tightness, and need not additionally coat glue moreover, can make production environmental protection more, the cost is lower.
The packaging bag made of the film 100 can be increased in thickness, and the structural strength and the bearing capacity of the packaging bag are improved; the first biological full-degradable film layer 1 and the second biological full-degradable film layer 3 are adopted, so that the biological full-degradable effect can be achieved, and the advantages of environmental protection and no environmental pollution are achieved; the middle layer adopts the paper layer 2, and the paper layer 2 has the characteristics of degradation, environmental protection and softness, can ensure that the prepared packaging bag meets the requirements of paper-plastic degradation, and is environment-friendly; the paper layer 2 also has fiber grains, so that the green and environment-friendly sense and the concave-convex stereoscopic impression of the packaging bag can be increased.
In this embodiment, the front surface of the packaging bag has a gilding pattern 4 or gilding letters (not shown) to make the appearance of the packaging bag more beautiful.
In this embodiment, the front surface or the back surface of the packaging bag is provided with the opening 5, that is, the opening 5 may be arranged on the front surface or the back surface in specific implementation, so as to conveniently take and place articles in the packaging bag.
In this embodiment, the opening 5 is provided with an adhesive sheet 6 to prevent the article from automatically coming out of the opening 5. In the specific implementation, the side of the adhesive sheet 6 not contacting with the opening 5 is not brushed with adhesive, and the side contacting with the opening 5 is brushed with adhesive, so that the adhesive sheet 6 can be torn when the article is required to be taken and placed, and the article can be adhered again when the article is not required to be taken and placed.
In this embodiment, the back of the package has a label 7 to facilitate description of the article, use of the package, and the like.
Example 3
Referring to fig. 1 to 3, a high-quality biodegradable packaging film 100 of the present invention includes a first biodegradable film layer 1, a paper layer 2 and a second biodegradable film layer 3; the first biological full-degradable film layer 1 and the paper layer 2 are bonded through a first glue layer 21, and the paper layer 2 and the second biological full-degradable film layer 3 are bonded through a second glue layer 22, and can be bonded through a hot pressing process. When the film 100 is used for manufacturing a packaging bag, the first biological fully-degradable film layer 1 is arranged outside the packaging bag, and the second biological fully-degradable film layer 3 is arranged inside the packaging bag.
The technical scheme of the utility model designs that the film 100 comprises a three-layer structure of a first biological full-degradable film layer 1, a paper layer 2 and a second biological full-degradable film layer 3, compared with the existing single-layer film structure, the thickness can be increased, and the structural strength and the bearing capacity are improved; meanwhile, the film 100 adopts the first biological full-degradable film layer 1 and the second biological full-degradable film layer 3, so that the biological full-degradable effect can be achieved, and the film has the advantages of environmental protection and no environmental pollution. In addition, the middle layer of the film 100 adopts the paper layer 2, and the paper layer 2 has the characteristics of degradation, environmental protection and softness, so that the prepared packaging bag can meet the requirements of paper-plastic degradation and is environment-friendly; meanwhile, the paper layer 2 also has fiber grains, so that the green and environment-friendly sense and the concave-convex stereoscopic impression can be increased.
In this embodiment, the lower surface of the first biodegradable film layer 1 is printed with an ink layer 11. Printing ink layer 11 makes ink layer 11 be in the intermediate position through the lower surface printing ink layer 11 at first biological full degradation rete 1 for when using this technical scheme three layer construction compound wrapping bag, can avoid printing ink well and receive external friction and the problem of china ink that falls.
In this embodiment, the first biodegradable film layer 1 and the second biodegradable film layer 3 are made of PBAT material and PLA material.
Wherein, the PBAT material belongs to thermoplastic biodegradable plastic, is a copolymer of butanediol adipate and butanediol terephthalate, has the characteristics of PBA and PBT, and has better ductility and elongation at break as well as better heat resistance and impact performance; in addition, the biodegradable plastic has excellent biodegradability, and is one of the best degradable materials which are very active in the research of the current biodegradable plastics and are applied to the market. The PLA material (polylactic acid) is a novel bio-based and renewable biodegradable material, and is prepared by using starch raw materials provided by renewable plant resources (such as corn, cassava and the like). The starch raw material is saccharified to obtain glucose, the glucose and certain strains are fermented to prepare high-purity lactic acid, and the polylactic acid with certain molecular weight is synthesized by a chemical synthesis method. The biodegradable plastic has good biodegradability, can be completely degraded by microorganisms in the nature under specific conditions after being used, finally generates carbon dioxide and water, does not pollute the environment, is very beneficial to environmental protection, and is a well-known environment-friendly material. The PBAT material and the PLA material in the first biological full-degradable film layer 1 and the second biological full-degradable film layer 3 are good biological degradable materials, so no burden is caused to the environment.
In the embodiment, the too heavy or too light of the paper layer 2 affects the production and use of the packaging bag, and the specification of the paper layer 2 is preferably selected, and the specification of the paper layer 2 is 12-25 g per square meter. In practical applications, the size of the paper layer 2 may be any one of 12 g, 13 g, 14 g, 15 g, 16 g, 17 g, 18 g, 19 g, 20 g, 21 g, 22 g, 23 g, 24 g, and 25 g.
In a preferred embodiment, the paper layer 2 has a weight of 18 grams per square meter.
In this embodiment, the use of the packaging bag is affected by the excessive thickness or the excessive thinness of the first fully biodegradable film layer 1, the thickness of the first fully biodegradable film layer 1 is preferably selected by the scheme, and the thickness of the first fully biodegradable film layer 1 is 20-90 micrometers.
In a preferred embodiment, the thickness of the first biodegradable film layer 1 is 30-60 μm. In specific implementation, the thickness of the first fully biodegradable film layer 1 may be set to any one of 30 microns, 31 microns, 32 microns, 33 microns, 34 microns, 35 microns, 36 microns, 37 microns, 38 microns, 39 microns, 40 microns, 41 microns, 42 microns, 43 microns, 44 microns, 45 microns, 46 microns, 47 microns, 48 microns, 49 microns, 50 microns, 51 microns, 52 microns, 53 microns, 54 microns, 55 microns, 56 microns, 57 microns, 58 microns, 59 microns, and 60 microns.
In this embodiment, the use of the packaging bag is affected by the excessive thickness or the excessive thinness of the second fully biodegradable film layer 3, the thickness of the second fully biodegradable film layer 3 is preferably selected by the scheme, and the thickness of the second fully biodegradable film layer 3 is 20-90 micrometers.
In a preferred embodiment, the thickness of the second fully biodegradable film layer 3 is 30 to 60 μm. In specific implementation, the thickness of the second fully biodegradable film layer 3 may be set to be any one of 30 micrometers, 31 micrometers, 32 micrometers, 33 micrometers, 34 micrometers, 35 micrometers, 36 micrometers, 37 micrometers, 38 micrometers, 39 micrometers, 40 micrometers, 41 micrometers, 42 micrometers, 43 micrometers, 44 micrometers, 45 micrometers, 46 micrometers, 47 micrometers, 48 micrometers, 49 micrometers, 50 micrometers, 51 micrometers, 52 micrometers, 53 micrometers, 54 micrometers, 55 micrometers, 56 micrometers, 57 micrometers, 58 micrometers, 59 micrometers and 60 micrometers.
The technical scheme of the utility model is through preferring the thickness of first biological complete degradation rete 1 is 30-60 microns, the thickness of second biological complete degradation rete 3 is 30-60 microns for the whole thickness of film has both realized the purpose of bodiness for the film thickness of traditional wrapping bag, can not the bodiness too much again, can make the wrapping bag have better compliance.
In this embodiment, the paper layer 2 is a double-glued-cotton paper layer coated with a first glue layer 21 and a second glue layer 22, that is, one side of the paper layer 2 is coated with the first glue layer 21, and the other side is coated with the second glue layer 22; the softness can be increased by using the cotton paper layer.
Example 4
Referring to fig. 1 to 3, the present invention relates to a packing bag formed by overlapping the above-mentioned films 100. The specific structure of the film 100 is described in example 3, and the description is not repeated here. When concrete implementation, the wrapping bag need use multi-disc film 100 to form through the overlap joint process, because the material that first biological full degradation rete 1 and second biological full degradation rete 3 used in this scheme is the same (all is PBAT material and PLA material), consequently first biological full degradation rete 1 and second biological full degradation rete 3 itself just can fuse the overlap joint in the overlap joint process, both guaranteed fastness and gas tightness, and need not additionally coat glue moreover, can make production environmental protection more, the cost is lower.
The packaging bag made of the film 100 can be increased in thickness, and the structural strength and the bearing capacity of the packaging bag are improved; the first biological full-degradable film layer 1 and the second biological full-degradable film layer 3 are adopted, so that the biological full-degradable effect can be achieved, and the advantages of environmental protection and no environmental pollution are achieved; the middle layer adopts the paper layer 2, and the paper layer 2 has the characteristics of degradation, environmental protection and softness, can ensure that the prepared packaging bag meets the requirements of paper-plastic degradation, and is environment-friendly; the paper layer 2 also has fiber grains, so that the green and environment-friendly sense and the concave-convex stereoscopic impression of the packaging bag can be increased.
In this embodiment, the front surface of the packaging bag has a gilding pattern 4 or gilding letters (not shown) to make the appearance of the packaging bag more beautiful.
In this embodiment, the front surface or the back surface of the packaging bag is provided with the opening 5, that is, the opening 5 may be arranged on the front surface or the back surface in specific implementation, so as to conveniently take and place articles in the packaging bag.
In this embodiment, the opening 5 is provided with an adhesive sheet 6 to prevent the article from automatically coming out of the opening 5. In the specific implementation, the side of the adhesive sheet 6 not contacting with the opening 5 is not brushed with adhesive, and the side contacting with the opening 5 is brushed with adhesive, so that the adhesive sheet 6 can be torn when the article is required to be taken and placed, and the article can be adhered again when the article is not required to be taken and placed.
In this embodiment, the back of the package has a label 7 to facilitate description of the article, use of the package, and the like.
Although specific embodiments of the present invention have been described, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the claims appended hereto.
Claims (13)
1. A high-quality biodegradable packaging film is characterized in that: comprises a first biological full-degradable film layer, a paper layer and a second biological full-degradable film layer; the first biological full-degradable film layer and the paper layer are bonded through a first glue layer, and the paper layer and the second biological full-degradable film layer are bonded through a second glue layer.
2. The high-quality biodegradable packaging film according to claim 1, wherein: the lower surface of the first biological full-degradable film layer is printed with an ink layer.
3. The high-quality biodegradable packaging film according to claim 1, wherein: the specification of the paper layer is 12-25 g per square meter.
4. A high quality fully biodegradable packaging film according to claim 3, wherein: the paper layer is 18 g per square meter in weight.
5. The high-quality biodegradable packaging film according to claim 1, wherein: the thickness of the first biological full degradable film layer is 20-90 microns.
6. The high-quality biodegradable packaging film according to claim 5, wherein: the thickness of the first biological full degradable film layer is 30-60 microns.
7. The high-quality biodegradable packaging film according to claim 1, wherein: the thickness of the second biological full degradable film layer is 20-90 microns.
8. The high-quality biodegradable packaging film according to claim 7, wherein: the thickness of the second biological full degradable film layer is 30-60 microns.
9. The high-quality biodegradable packaging film according to claim 1, wherein: the paper layer is a double-adhesive-cotton paper layer coated with a first adhesive-water layer and a second adhesive-water layer.
10. A kind of wrapping bag, its characterized in that: the package is formed using the film lap joint of any one of claims 1 to 9.
11. A package as in claim 10, wherein: the front or the back of the packaging bag is provided with an opening.
12. A package as in claim 11, wherein: and the opening is provided with an adhesive sheet.
13. A package as in claim 10, wherein: the back of the package bag is provided with a label.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120037292.1U CN215152739U (en) | 2021-01-07 | 2021-01-07 | High-quality biodegradable packaging film and packaging bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120037292.1U CN215152739U (en) | 2021-01-07 | 2021-01-07 | High-quality biodegradable packaging film and packaging bag |
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| Publication Number | Publication Date |
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| CN215152739U true CN215152739U (en) | 2021-12-14 |
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| CN202120037292.1U Active CN215152739U (en) | 2021-01-07 | 2021-01-07 | High-quality biodegradable packaging film and packaging bag |
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| CN (1) | CN215152739U (en) |
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2021
- 2021-01-07 CN CN202120037292.1U patent/CN215152739U/en active Active
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