CN213413211U - High-temperature-resistant easy-to-tear co-extruded film - Google Patents
High-temperature-resistant easy-to-tear co-extruded film Download PDFInfo
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- CN213413211U CN213413211U CN202021775799.9U CN202021775799U CN213413211U CN 213413211 U CN213413211 U CN 213413211U CN 202021775799 U CN202021775799 U CN 202021775799U CN 213413211 U CN213413211 U CN 213413211U
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Abstract
The utility model provides a high temperature resistant co-extrusion membrane of easily taking off, including top layer, heat-resistant layer, nylon rete, resistant layer, the barrier layer of cooking that sets gradually by outer to interior and easily take off the layer, connect through the hot melt between top layer, heat-resistant layer, nylon rete, resistant layer, the barrier layer of cooking, easily take off the layer, the heat-resistant layer is polyurethane cooking glue layer, top layer and resistant layer of cooking are the polypropylene rete. The utility model discloses a top layer, heat-resistant layer, nylon rete, resistant layer, the barrier layer of cooking and easily take off the cooperation on layer, the high temperature that brings when can bear disinfecting to prevent to crowd the use of membrane altogether because of its inner structure is destroyed to high temperature, influence crowded membrane altogether.
Description
Technical Field
The utility model mainly relates to a technical field of crowded membrane altogether, concretely relates to high temperature resistant is easily taken off and is crowded membrane altogether.
Background
In recent years, with the development of flexible packaging technology, the demand for plastic packaging materials has been increasing, and in the production and manufacturing process of food grade flexible packages, sterilization by high temperature is often required in order to improve the quality of the packages, and if the packaging bags have no high temperature resistance, the packaging bags are easily deformed, which affects the quality of the packaging bags.
SUMMERY OF THE UTILITY MODEL
The utility model mainly provides a high temperature resistant co-extrusion film that easily takes off is used for solving the technical problem that proposes in the above-mentioned background art.
The utility model provides a technical scheme that above-mentioned technical problem adopted does:
high temperature resistant coextrusion film of easily taking off, including top layer, heat-resistant layer, nylon rete, resistant layer of cooking, barrier layer and the easily layer of taking off that sets gradually from outer to inner, connect through the hot melt between top layer, heat-resistant layer, nylon rete, resistant layer of cooking, barrier layer and the easily layer of taking off, the heat-resistant layer is polyurethane glue film of cooking, top layer and resistant layer of cooking are the polypropylene rete.
Further, the inboard on top layer is equipped with the corona treatment face, the corona treatment face is the silica coating, the thickness of silica coating is 0.1 ~ 2 mu m.
Further, the thickness of the heat-resistant layer is 13-mum.
Further, the nylon membrane layer is a composite grade biaxially oriented polyamide membrane.
Furthermore, the easy-to-uncover layer is formed by compounding a polyvinyl chloride layer and a polystyrene layer, and the outer side of the polyvinyl chloride layer is in hot melt connection with the inner side surface of the barrier layer.
Furthermore, the inner side of the easy-to-uncover layer is connected with a heat-sealing layer in a hot-melting mode, the heat-sealing layer is a cooking-grade cast polypropylene film, and the outer side surface of the heat-sealing layer is connected with the inner side surface of the polystyrene layer in a hot-melting mode.
Further, the thickness of the heat-sealing layer is 15 μm.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses can bear the high temperature that brings when disinfecting, thereby prevent to crowd the membrane altogether because of high temperature destroys its inner structure, influence the use of crowded membrane altogether, through the top layer, the heat-resistant layer, the nylon rete, resistant layer of cooking, the barrier layer easily takes off the cooperation on layer, make crowded membrane altogether through being equipped with heat-resistant layer and resistant layer of cooking, thereby utilize the material to cook the heat-resistant layer and the resistant layer of cooking of glue film for polyurethane, bear the high temperature of degree centigrade, because the inboard on resistant layer of cooking is equipped with easily takes off the layer, and the layer of easily taking off that constitutes polyvinyl chloride layer and polystyrene layer has good stripping nature after the heat-seal has been crossed.
The present invention will be explained in detail with reference to the drawings and specific embodiments.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a cross-sectional view of the present invention.
In the figure: 1. a surface layer; 11. a silica coating; 2. a heat-resistant layer; 3. a nylon membrane layer; 4. a cooking resistant layer; 5. a barrier layer; 6. an easy-to-tear layer; 61. a polyvinyl chloride layer; 62. a polystyrene layer; 7. and (4) heat sealing the layer.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, but rather, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the use of the term knowledge in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to the attached drawings 1-2, the high temperature resistant easy-to-tear co-extrusion film comprises a surface layer 1, a heat resistant layer 2, a nylon film layer 3, a steaming resistant layer 4, a blocking layer 5 and an easy-to-tear layer 6 which are sequentially arranged from outside to inside, wherein the surface layer 1, the heat resistant layer 2, the nylon film layer 3, the steaming resistant layer 4, the blocking layer 5 and the easy-to-tear layer 6 are connected through hot melting, the heat resistant layer 2 is a polyurethane steaming adhesive layer, and the surface layer 1 and the steaming resistant layer 4 are polypropylene film layers.
In an embodiment, referring to fig. 2, the inner side of the surface layer 1 is provided with a corona treatment surface, the corona treatment surface is a silica coating 11, and the thickness of the silica coating 11 is 0.1-2 μm, so that the surface layer 1 is made of the silica coating 11, the surface tension of the surface layer 1 made of a polypropylene film is increased, and the printing performance and the adhesive capacity of the film are improved.
In the embodiment, please refer to fig. 2, the thickness of the heat-resistant layer 2 is 1 to 3 μm, so that the heat-resistant layer made of the polyurethane cooking glue layer can save the used materials while ensuring the strength thereof.
In an embodiment, referring to fig. 2 again, the nylon film layer 3 is a composite-grade biaxially oriented polyamide film, so that the barrier property of the co-extruded film is enhanced by the nylon film layer 3 made of the composite-grade biaxially oriented polyamide film, and oxygen, fragrance or other irritating gases are blocked by the composite-grade biaxially oriented polyamide film.
In the embodiment, referring to fig. 2 again, the easy-release layer 6 is formed by combining a polyvinyl chloride layer 61 and a polystyrene layer 62, the outer side of the polyvinyl chloride layer 61 is thermally fused with the inner side surface of the barrier layer 5, and the easy-release layer 6 forming the polyvinyl chloride layer 61 and the polystyrene layer 62 has good peeling property after being heat sealed.
In the embodiment, please refer to fig. 2 again, the inner side of the easy-to-tear layer 6 is connected with the heat-sealing layer 7 in a hot-melting manner, the heat-sealing layer 7 is a cooking-level cast polypropylene film, the outer side surface of the heat-sealing layer 7 is connected with the inner side surface of the polystyrene layer 62 in a hot-melting manner, so that the heat-sealing layer 7 made of the cooking-level cast polypropylene film can resist a high temperature of 121 ℃, the thickness of the heat-sealing layer 7 is 15 μm, and the heat-sealing layer 7 made of the cooking-level cast polypropylene film can save materials while ensuring the strength thereof.
The utility model discloses a concrete operation as follows:
in the process of using the co-extrusion film, the co-extrusion film comprises a surface layer 1, the surface layer 1 is made of a polypropylene film, the polypropylene film has the characteristics of strong stability and good transparency, so that the co-extrusion film can utilize the good heat sealability of the surface layer 1, the polypropylene film can be CPP and has good boiling resistance, the surface layer 1 can increase the surface tension of the surface layer 1 made of the polypropylene film by passing through a corona treatment surface with a silicon dioxide coating 11, the printing performance and the bonding capability of the film are improved, the heat-resistant layer 2 and the boiling-resistant layer 4 are arranged on the inner side of the surface layer 1, so that the heat-resistant layer 2 and the boiling-resistant layer 4 made of polyurethane boiling glue layers are utilized to bear the high temperature of 121 ℃, the nylon film layer 3 is arranged on the inner side of the heat-resistant layer 2, and the barrier property of the co-extrusion film is enhanced by the nylon film 3 made of a composite-, the composite grade biaxially oriented polyamide film is used for blocking oxygen, fragrance or other irritant gases, and the easy-to-tear layer 6 is arranged on the inner side of the nylon film layer 3, so that the easy-to-tear layers 6 forming the polyvinyl chloride layer 61 and the polystyrene layer 62 have good stripping performance after heat sealing.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, if the method and the technical solution of the present invention are adopted, the present invention can be directly applied to other occasions without substantial improvement, and the present invention is within the protection scope of the present invention.
Claims (7)
1. The high-temperature-resistant easy-uncovering co-extrusion film is characterized by comprising a surface layer (1), a heat-resistant layer (2), a nylon film layer (3), a steaming-resistant layer (4), a blocking layer (5) and an easy-uncovering layer (6) which are sequentially arranged from outside to inside, wherein the surface layer (1), the heat-resistant layer (2), the nylon film layer (3), the steaming-resistant layer (4), the blocking layer (5) and the easy-uncovering layer (6) are connected through hot melting;
the heat-resistant layer (2) is a polyurethane cooking adhesive layer;
the surface layer (1) and the steaming-resistant layer (4) are both polypropylene film layers.
2. The high-temperature-resistant easy-uncovering co-extrusion film as claimed in claim 1, wherein a corona treatment surface is arranged on the inner side of the surface layer (1), the corona treatment surface is a silica coating (11), and the thickness of the silica coating (11) is 0.1-2 μm.
3. The high-temperature-resistant easy-uncovering co-extrusion film as claimed in claim 1, wherein the thickness of the heat-resistant layer (2) is 1-3 μm.
4. The high temperature resistant easy-uncovering co-extrusion film as claimed in claim 1, wherein the nylon film layer (3) is a composite grade biaxially oriented polyamide film.
5. The high-temperature-resistant easy-uncovering co-extrusion film is characterized in that the easy-uncovering layer (6) is formed by compounding a polyvinyl chloride layer (61) and a polystyrene layer (62), and the outer side of the polyvinyl chloride layer (61) is in hot-melt connection with the inner side surface of the barrier layer (5).
6. The high-temperature-resistant easy-uncovering co-extrusion film according to claim 5, wherein the inner side of the easy-uncovering layer (6) is in hot-melt connection with a heat-sealing layer (7), the heat-sealing layer (7) is a cooking-grade cast polypropylene film, and the outer side surface of the heat-sealing layer (7) is in hot-melt connection with the inner side surface of the polystyrene layer (62).
7. The high temperature resistant easy-open coextruded film according to claim 6, characterised in that the thickness of the heat seal layer (7) is 15 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021775799.9U CN213413211U (en) | 2020-08-22 | 2020-08-22 | High-temperature-resistant easy-to-tear co-extruded film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021775799.9U CN213413211U (en) | 2020-08-22 | 2020-08-22 | High-temperature-resistant easy-to-tear co-extruded film |
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| CN213413211U true CN213413211U (en) | 2021-06-11 |
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| CN202021775799.9U Active CN213413211U (en) | 2020-08-22 | 2020-08-22 | High-temperature-resistant easy-to-tear co-extruded film |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113580521A (en) * | 2021-08-04 | 2021-11-02 | 中塑新材料科技（杭州）有限公司 | Processing equipment and preparation method of boiling-resistant, high-temperature-resistant and easy-uncovering co-extruded film |
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2020
- 2020-08-22 CN CN202021775799.9U patent/CN213413211U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113580521A (en) * | 2021-08-04 | 2021-11-02 | 中塑新材料科技（杭州）有限公司 | Processing equipment and preparation method of boiling-resistant, high-temperature-resistant and easy-uncovering co-extruded film |
| CN113580521B (en) * | 2021-08-04 | 2023-01-20 | 中塑新材料科技（杭州）有限公司 | Processing equipment and preparation method of boiling-resistant, high-temperature-resistant and easy-uncovering co-extruded film |
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