CN212147846U - Single recoverable wrapping bag with separation performance - Google Patents
Single recoverable wrapping bag with separation performance Download PDFInfo
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- CN212147846U CN212147846U CN202020668003.3U CN202020668003U CN212147846U CN 212147846 U CN212147846 U CN 212147846U CN 202020668003 U CN202020668003 U CN 202020668003U CN 212147846 U CN212147846 U CN 212147846U
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- polyethylene film
- polyethylene
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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
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/80—Packaging reuse or recycling, e.g. of multilayer packaging
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Abstract
The utility model relates to the technical field of packaging bags, in particular to a single recoverable packaging bag with barrier property, a composite film of the packaging bag comprises a modified high-density-linear low-density mixed polyethylene film layer, a barrier coating, an adhesive layer and a modified linear low-density polyethylene film layer which are sequentially arranged from outside to inside, wherein the modified high-density-linear low-density mixed polyethylene film layer is formed by the mixed blow molding of a polyethylene film, modified high-density polyethylene and linear low-density polyethylene; through will all be the different rete complex that are made by the polyethylene material together, the unable fine recycle's of the mixed material of fine solution tradition problem, single polyethylene material can be retrieved many times and recycled, very compound environmental friendliness has simplified production technology simultaneously, simplifies the material of the multiple difference of tradition.
Description
Technical Field
The utility model relates to a wrapping bag technical field, concretely relates to single recoverable wrapping bag with separation performance.
Background
At present, some packaging bags containing liquid or some contents are more and heavier. However, with the growing concern of the society on environmental protection in recent years, the original material structure is not friendly to environmental protection, various materials of the package made of multiple materials after being compounded are difficult to separate or even cannot be recycled and reused after being used, the package is not environment-friendly, resources are wasted, and even if the materials are recycled, the materials can only be used once, and the value of the materials is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to be not enough among the prior art, and provide a single recoverable wrapping bag with separation performance, this single recoverable wrapping bag with separation performance is recoverable.
The purpose of the utility model is realized through the following technical scheme:
the composite film of the packaging bag comprises a modified high-density-linear low-density mixed polyethylene film layer, a barrier coating, an adhesive layer and a modified linear low-density polyethylene film layer which are sequentially arranged from outside to inside, wherein the modified high-density-linear low-density mixed polyethylene film layer is a structure formed by mixing and blow-molding a polyethylene film, modified high-density polyethylene and linear low-density polyethylene; the modified linear low-density polyethylene film layer is a structure formed by linear low-density polyethylene and modified low-density polyethylene matched with metallocene; the barrier coating is an acrylic coating.
Wherein the thickness range of the modified high-density-linear low-density hybrid polyethylene film layer is 25-60 mu m.
Wherein the thickness of the modified high-density-linear low-density hybrid polyethylene film layer is 40 μm.
Wherein the thickness of the modified linear low density polyethylene film layer is in the range of 40-140 μm.
Wherein the thickness of the modified linear low density polyethylene film layer is 100 μm.
The utility model has the advantages that: different film layers made of polyethylene materials are compounded together, so that the problem that the traditional mixed material cannot be well recycled is well solved, the single polyethylene material can be recycled for multiple times, the environment friendliness is very good, the production process is simplified, the traditional different materials are simplified, and the use of halogen is reduced; the barrier coating has certain flexibility, good adhesive force and good compatibility with the adhesive layer, and can form a very thin film layer with certain flexibility after being coated on the surface of the film material, thereby effectively preventing oxygen and water vapor from permeating and improving the barrier property of the whole film material.
Drawings
The present invention is further explained by using the drawings, but the embodiments in the drawings do not constitute any limitation to the present invention, and for those skilled in the art, other drawings can be obtained according to the following drawings without any inventive work.
Fig. 1 is a schematic structural view of a single recyclable packaging bag with barrier properties according to the present invention.
Fig. 1 includes:
the modified high-density-linear low-density mixed polyethylene film comprises a modified high-density-linear low-density mixed polyethylene film layer 1, a barrier coating layer 2, an adhesive layer 3 and a modified linear low-density polyethylene film layer 4.
Detailed Description
The invention will be further described with reference to the following examples.
The utility model discloses a concrete implementation mode of single recoverable wrapping bag with separation performance, as shown in figure 1, the complex film including the wrapping bag includes by outer and interior modified high density-linear low density hybrid polyethylene thin layer 1 that sets gradually, separation coating 2, gluing agent layer 3 and modified linear low density polyethylene thin layer 4, through will all be the different rete complex that is made by the polyethylene material together, the unable fine recycle's of the traditional hybrid material problem of fine solution, single polyethylene material can be retrieved many times and recycled, very compound environmental friendliness, the production technology has been simplified simultaneously, simplify the material of traditional multiple difference, the use to halogen has been reduced. The barrier coating 2 is an acrylic coating, the barrier coating 2 is a water-based coating, the barrier coating 2 has certain flexibility, good adhesive force and good compatibility with the adhesive layer 3, the barrier coating 2 and the adhesive layer 3 only have 2% -5% of the whole material, the production process is environment-friendly and non-toxic, a very thin film layer with certain flexibility can be formed after the barrier coating is coated on the surface of a film material, and the barrier property of the whole film material can be improved by effectively preventing oxygen and water vapor from permeating.
The modified high-density-linear-low-density mixed polyethylene film layer 1 is formed by mixing and blow molding a conventional polyethylene film, modified high-density polyethylene and linear low-density polyethylene, and different film layers (the modified high-density-linear-low-density mixed polyethylene film layer 1 and the modified linear low-density polyethylene film layer 4) made of polyethylene materials can well endow the packaging bag with certain heat resistance, flexibility and printability, so that the modified high-density-linear-low-density mixed polyethylene film layer 1 can replace the traditional polyethylene terephthalate film or polyamide film for friendly utilization.
The modified linear low-density polyethylene film layer 4 is formed by matching linear low-density polyethylene and modified low-density polyethylene with metallocene, so that the mechanical strength of the film is ensured, and the heat-sealing unsealing temperature is reduced. The modified high-density-linear low-density mixed polyethylene film layer 1 and the modified linear low-density polyethylene film layer 4 are arranged, so that the requirement of the composite film on bag making cannot be complicated, but the heat sealing temperature required by the bag making is reduced, the energy consumption is greatly reduced, the toughness of the composite structure of the polyethylene film/polyethylene film is good, the bag is not easy to break when some heavier contents are correspondingly filled, the contents are well protected, and the composite structure is particularly friendly to liquid packaging. The new structure can be compatible with various packaging requirements by adjusting the thickness. Wherein the model of the modified high-density-linear low-density mixed polyethylene film layer is PE-REC, and the supplier is Chengdu Boshi new material Co Ltd; the modified linear low density polyethylene film layer was model FPE (low temperature toughened) and was supplied by hey, hanchuan packaging ltd.
The thickness range of the modified high-density-linear low-density mixed polyethylene film layer 1 is 25-60 mu m; preferably, the thickness of the modified high density-linear low density hybrid polyethylene film layer 1 is 25 μm, 40 μm, 60 μm.
The thickness range of the modified linear low-density polyethylene film layer 4 is 40-140 mu m; the thickness of the modified linear low density polyethylene film layer 4 is 40 μm, 100 μm, 140 μm.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (5)
1. A single recyclable packaging bag having barrier properties, characterized in that: the composite film of the packaging bag comprises a modified high-density-linear low-density mixed polyethylene film layer, a barrier coating, an adhesive layer and a modified linear low-density polyethylene film layer which are sequentially arranged from outside to inside, wherein the barrier coating is an acrylic coating.
2. The single recyclable packaging bag with barrier properties as described in claim 1, wherein: the thickness range of the modified high-density-linear low-density mixed polyethylene film layer is 25-60 mu m.
3. The single recyclable packaging bag with barrier properties as described in claim 2, wherein: the thickness of the modified high-density-linear low-density mixed polyethylene film layer is 40 mu m.
4. The single recyclable packaging bag with barrier properties as described in claim 1, wherein: the thickness range of the modified linear low-density polyethylene film layer is 40-140 mu m.
5. The single recyclable packaging bag with barrier properties as described in claim 4, wherein: the thickness of the modified linear low-density polyethylene film layer is 100 mu m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020668003.3U CN212147846U (en) | 2020-04-27 | 2020-04-27 | Single recoverable wrapping bag with separation performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020668003.3U CN212147846U (en) | 2020-04-27 | 2020-04-27 | Single recoverable wrapping bag with separation performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212147846U true CN212147846U (en) | 2020-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020668003.3U Active CN212147846U (en) | 2020-04-27 | 2020-04-27 | Single recoverable wrapping bag with separation performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212147846U (en) |
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2020
- 2020-04-27 CN CN202020668003.3U patent/CN212147846U/en active Active
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