CN211542699U - Environment-friendly high-barrier composite packaging material - Google Patents
Environment-friendly high-barrier composite packaging material Download PDFInfo
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- CN211542699U CN211542699U CN201921662691.6U CN201921662691U CN211542699U CN 211542699 U CN211542699 U CN 211542699U CN 201921662691 U CN201921662691 U CN 201921662691U CN 211542699 U CN211542699 U CN 211542699U
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Abstract
The application discloses environment-friendly high-barrier composite packaging material, which consists of a moisture absorption film, a barrier film and a spun-bonded non-woven fabric or PE plastic film which are sequentially arranged from inside to outside and fixedly connected with each other. The packaging material is convenient to recycle, good in environmental protection performance, high in structural strength and capable of drying and absorbing moisture.
Description
Technical Field
The application relates to the field of packaging materials, in particular to an environment-friendly high-barrier composite packaging material.
Background
Traditional packaging materials all use the aluminum foil to provide barrier property to contain more than two layers of polymer plastic films, the compound mode between each structural layer is that the adhesive bonds compositely, because this kind of packaging material comprises many well components, is unfavorable for the recycling of material. In addition, the traditional packaging material has no moisture absorption capacity and low strength, and the aluminum foil layer with the barrier function is easy to damage when in use.
SUMMERY OF THE UTILITY MODEL
The purpose of the application is: aiming at the defects of the prior art, the environment-friendly high-barrier composite packaging material is provided, is convenient to recycle, has good environmental protection property and high structural strength, and has the function of drying and moisture absorption.
The technical scheme of the application is as follows:
the utility model provides an environment-friendly high resistant separates composite packaging material, this environment-friendly high resistant separates composite packaging material by arrange in proper order and mutual fixed connection from inside to outside:
a moisture absorption film,
A barrier film, and
spun-bonded nonwoven fabric or PE plastic film.
The moisture absorption film is a PE plastic film added with a superfine molecular sieve drying agent.
The moisture absorption film is prepared by taking superfine molecular sieve desiccant and linear low-density polyethylene as raw materials and performing a film preparation process.
The barrier film is a PE plastic film added with nano bentonite.
The barrier film is prepared from nano bentonite and low-density polyethylene serving as raw materials through a film preparation process.
The spun-bonded non-woven fabric is prepared by taking high molecular polymer as a raw material through a flash evaporation method.
The high molecular polymer is polyethylene.
The moisture absorption membrane with barrier film is through being located between the two and for the polyethylene material drench the rete interconnect, barrier film with the spunbonded nonwoven is through being located between the two and for the polyethylene material drench the rete interconnect.
The moisture absorption film is fixedly bonded with the barrier film through an adhesive arranged between the moisture absorption film and the barrier film, and the barrier film is fixedly bonded with the spun-bonded non-woven fabric through an adhesive arranged between the moisture absorption film and the barrier film.
The application has the advantages that:
1. the outermost layer of the packaging material is a PE plastic film or a spun-bonded non-woven fabric made of PE materials through a flash evaporation method, the structural strength is high, no dust leakage risk exists (the packaging material can be used for packaging powdery products), and the outer surface of the packaging material can be printed to obtain product marks.
2. The intermediate layer is a PE plastic film added with a nano bentonite component, and can extremely strongly block moisture.
3. The innermost layer adopts a PE plastic film added with superfine molecular sieve components, so that moisture can be effectively prevented from permeating from outside to inside, and the moisture resistance is enhanced.
4. The outer spunbonded nonwoven, the middle barrier film, the inner moisture absorption film and the laminating film layer are used for compositely connecting the three structural layers, the main raw materials of the laminated film layer all adopt the same high polymer material polyethylene PE, so that the laminated film layer is convenient to recycle, the problem of difficult recycling caused by the fact that a packing material has various high polymer materials is solved, the resource waste is reduced, and the laminated film layer is beneficial to environmental protection.
5. The barrier film in the middle layer of the packaging material can effectively block moisture from entering, even a small amount of moisture which permeates through can be absorbed by the moisture absorption film in the inner layer, and the moisture absorption film is double-moisture-resistant, so that the effect of efficiently blocking moisture is achieved.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic cross-sectional view of a packaging material according to an embodiment of the present disclosure;
FIG. 2 is a schematic cross-sectional view of a packaging material according to a second embodiment of the present application;
FIG. 3 is a schematic cross-sectional view of a packaging material in a third embodiment of the present application;
wherein: 1-moisture absorption film, 2-barrier film, 3-spun-bonded non-woven fabric and 4-PE plastic film.
Detailed Description
In order that the above objects, features and advantages of the present application can be more clearly understood, the present application will be described in further detail with reference to the accompanying drawings and detailed description. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present application. The conditions used in the examples may be further adjusted according to the conditions of the particular manufacturer, and the conditions not specified are generally the conditions in routine experiments. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.
In the description of the present specification, the terms "connected", "mounted", "fixed", and the like are to be understood in a broad sense. For example, "connected" may be fixedly connected, detachably connected, or integrally connected; may be connected directly or indirectly through intervening media. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In the description of the present specification, the terms "upper", "lower", and the like indicate orientations or positional relationships based on those shown in the drawings, only for convenience of describing the present application and simplifying the description, but do not indicate or imply that the referred devices or units must have a specific direction, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present application.
The first embodiment is as follows:
fig. 1 shows an embodiment of the present invention, which is an environment-friendly high-barrier composite packaging material, and the packaging material mainly has a three-layer structure fixedly connected with each other, namely, an absorbent film 1, a barrier film 2 and a spun-bonded nonwoven fabric 3 from the inside to the outside. When the packaging material is used for packaging an article, the article to be secured inside is adjacent to the moisture absorption film 1, and the spunbonded nonwoven fabric 3 is on the outer surface of the packaging material.
The moisture absorption film 1 is a PE plastic film added with a superfine molecular sieve desiccant, and the moisture absorption film with the structure can be purchased directly or prepared by the prior process. The barrier film 2 is a PE plastic film 5 added with nano bentonite, and the barrier film with the structure can be directly purchased and can be prepared by the existing process. Spunbonded nonwovens 3 are very common on the market, can be purchased easily and, of course, can also be produced by themselves.
In the present example, the packaging material is prepared as follows:
1) the spunbond nonwoven 3 was purchased directly from type 1025D dupont paper, which had high density polyethylene HDPE as the main component and was prepared by flash evaporation.
2) The outermost hygroscopic film 1 is prepared by using low-density polyethylene LDPE as a main raw material and nano bentonite as a filler through a film preparation process, wherein the thickness of the hygroscopic film 1 is 0.030 mm. Wherein the weight percentage of the nano bentonite in all raw materials of the moisture absorption film 1 is 10%.
3) The barrier film 2 of the middle layer is prepared by taking linear low density polyethylene LLDPE as a main raw material and superfine molecular sieve as a filler through a film preparation process, and the thickness of the barrier film 2 is 0.040 mm. Wherein the weight percentage of the ultra-fine molecular sieve in all raw materials of the barrier film 2 is 25%.
4) Laminating and compounding the outer spun-bonded non-woven fabric 3 and the middle barrier film 2 by using low-density polyethylene (LDPE) as a laminating raw material; and low-density polyethylene (LDPE) is also used as a laminating raw material, and the moisture absorption film 1 at the inner layer and the barrier film 2 at the middle layer are laminated and compounded together.
Therefore, the packaging material is provided with the laminating layers which are used for compositely connecting the three structural layers together between the spun-bonded non-woven fabric 3 and the barrier film 2 and between the moisture absorption film 1 and the barrier film 2, and the main components of the inner laminating layer, the outer laminating layer, the moisture absorption film 1, the barrier film 2 and the spun-bonded non-woven fabric 3 are all the same high molecular polymer, namely polyethylene PE, so that the packaging material is convenient to recycle and has good environmental protection performance.
Example two:
fig. 2 shows a second embodiment of the environmentally friendly high-barrier composite packaging material of the present application, which has substantially the same structure and manufacturing method as the first embodiment, specifically, the packaging material of this embodiment is manufactured by:
1) the surface density of the product is 50g/m directly purchased in the market2And the spun-bonded non-woven fabric 3 is prepared by a flash evaporation method, and the main component of the spun-bonded non-woven fabric 3 is polyethylene PE. And characters and pattern marks are printed on the outer side surface of the spun-bonded non-woven fabric 3.
2) The outermost hygroscopic film 1 is prepared by using low-density polyethylene LDPE as a main raw material and nano bentonite as a filler through a film preparation process, wherein the thickness of the hygroscopic film 1 is 0.025 mm. Wherein the weight percentage of the nano bentonite in all raw materials of the moisture absorption film 1 is 15%.
3) The barrier film 2 of the middle layer is prepared by using linear low density polyethylene LLDPE as a main raw material and superfine molecular sieve as a filler through a film preparation process, and the thickness of the barrier film 2 is 0.030 mm. Wherein the weight percentage of the ultra-fine molecular sieve in all raw materials of the barrier film 2 is 20%.
4) Laminating and compounding the outer spun-bonded non-woven fabric 3 and the middle barrier film 2 by using low-density polyethylene (LDPE) as a laminating raw material; and low-density polyethylene (LDPE) is also used as a laminating raw material, and the moisture absorption film 1 at the inner layer and the barrier film 2 at the middle layer are laminated and compounded together.
It can be seen that the packaging material of this embodiment differs from the packaging material of the first embodiment in structure: the outermost layer of spun-bonded non-woven fabric 3 is made of different materials, the content of superfine molecular sieve components in the middle barrier film 2 is different, the content of nano bentonite in the innermost layer of moisture absorption film 1 is different, and the thicknesses of the barrier film 2 and the moisture absorption film 1 are different.
Example three:
fig. 3 shows a third specific embodiment of the environmentally friendly high-barrier composite packaging material of the present application, which is also substantially the same as the second embodiment in terms of structure and manufacturing method, specifically, the packaging material of this embodiment is manufactured by:
1) the surface density of the product is 55g/m when the product is directly purchased in the market2The PE plastic film 4 of (2) has a composition of pure polyethylene PE. Characters and pattern marks are printed on the outer side surface of the PE plastic film 4.
2) The outermost hygroscopic film 1 is prepared by using low-density polyethylene LDPE as a main raw material and nano bentonite as a filler through a film preparation process, wherein the thickness of the hygroscopic film 1 is 0.035 mm. Wherein the weight percentage of the nano bentonite in all raw materials of the moisture absorption film 1 is 8 percent.
3) The barrier film 2 of the middle layer is prepared by taking linear low density polyethylene LLDPE as a main raw material and superfine molecular sieve as a filler through a film preparation process, and the thickness of the barrier film 2 is 0.040 mm. Wherein the weight percentage of the ultra-fine molecular sieve in all raw materials of the barrier film 2 is 30%.
4) Taking low-density polyethylene (LDPE) as a laminating raw material, laminating and compounding the outer PE plastic film 4 and the middle barrier film 2 together; and low-density polyethylene (LDPE) is also used as a laminating raw material, and the moisture absorption film 1 at the inner layer and the barrier film 2 at the middle layer are laminated and compounded together.
It can be seen that the packaging material of this embodiment differs from the packaging material of the second embodiment in structure: the outermost layer is a PE plastic film 4 instead of a spun-bonded non-woven fabric 3, the content of superfine molecular sieve components in the middle barrier film 2 is different, the content of nano bentonite in the innermost hygroscopic film 1 is different, and the thicknesses of the barrier film 2 and the hygroscopic film 1 are different.
It should be understood that the above-mentioned embodiments are only illustrative of the technical concepts and features of the present application, and the present application is not limited thereto. All equivalent changes and modifications made according to the spirit of the main technical scheme of the application are covered in the protection scope of the application.
Claims (5)
1. The utility model provides an environment-friendly high resistant separates composite packaging material which characterized in that, this environment-friendly high resistant separates composite packaging material by arrange and mutual fixed connection from inside to outside in proper order:
a moisture-absorbing film (1),
A barrier film (2), and
a spun-bonded non-woven fabric (3) or a PE plastic film (4).
2. The environment-friendly high-barrier composite packaging material as claimed in claim 1, wherein the spun-bonded non-woven fabric (3) is made of a high molecular polymer as a raw material by a flash evaporation method.
3. The environment-friendly high-barrier composite packaging material as claimed in claim 2, wherein the high molecular polymer is polyethylene.
4. The environment-friendly high-barrier composite packaging material as claimed in any one of claims 1 to 3, wherein the moisture-absorbing film (1) and the barrier film (2) are connected to each other by a polyethylene-based laminate film layer therebetween, and the barrier film (2) and the spun-bonded nonwoven fabric (3) are connected to each other by a polyethylene-based laminate film layer therebetween.
5. The environment-friendly high-barrier composite packaging material as claimed in any one of claims 1 to 3, wherein the moisture-absorbing film (1) and the barrier film (2) are adhesively fixed by an adhesive disposed therebetween, and the barrier film (2) and the spun-bonded non-woven fabric (3) are adhesively fixed by an adhesive disposed therebetween.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921662691.6U CN211542699U (en) | 2019-09-30 | 2019-09-30 | Environment-friendly high-barrier composite packaging material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921662691.6U CN211542699U (en) | 2019-09-30 | 2019-09-30 | Environment-friendly high-barrier composite packaging material |
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| CN211542699U true CN211542699U (en) | 2020-09-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110667218A (en) * | 2019-09-30 | 2020-01-10 | 昆山威胜干燥剂有限公司 | Environment-friendly high-barrier composite packaging material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110667218A (en) * | 2019-09-30 | 2020-01-10 | 昆山威胜干燥剂有限公司 | Environment-friendly high-barrier composite packaging material and preparation method thereof |
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