CN212124442U - Biaxially oriented polyamide film for sauce bag packaging - Google Patents
Biaxially oriented polyamide film for sauce bag packaging Download PDFInfo
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- CN212124442U CN212124442U CN202020502829.2U CN202020502829U CN212124442U CN 212124442 U CN212124442 U CN 212124442U CN 202020502829 U CN202020502829 U CN 202020502829U CN 212124442 U CN212124442 U CN 212124442U
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Abstract
The utility model relates to a sauce bagging-off technical field of material, in particular to biaxially oriented polyamide film of sauce bagging-off packing usefulness, wherein, the biaxially oriented polyamide film of sauce bagging-off usefulness, including at least four-layer structure, four-layer structure top-down easily tears layer, barrier layer, second nylon straight line for first nylon straight line in proper order and tears layer and heat-seal layer. The nylon linear easy-tearing layer of the polyamide film has excellent linear easy-tearing performance, and the problem that sauce is scattered due to the fact that a common sauce bag is not easy to tear and/or is torn and inclined is solved; the barrier layer made of the MXD6 material has excellent barrier and aroma-keeping performances, and can prolong the shelf life of the sauce; a nylon heat-sealing layer is arranged to ensure the heat-sealing performance of the film; in addition, the polyamide film is formed by double-drawing through a multilayer co-extrusion technology, does not need adhesive compounding, can be used independently, and is energy-saving and environment-friendly.
Description
Technical Field
The utility model relates to a sauce wrapping bag material technical field, in particular to biaxial stretching polyamide film that sauce wrapping bag packing was used.
Background
The packaging of the sauce bag requires that a packaging film has strong heat sealing capability, barrier property and transparency so as to ensure that the fragrance of the seasoning is not changed, prolong the quality guarantee period of the seasoning and have excellent color difference performance capability; meanwhile, the solvent residue of the packaging film is required to be less than 10mg/m2The anti-bacterial and anti-boiling-water-based food has the advantages of good tensile property, good puncture resistance and good smoothness, so that the food safety, the transportation safety and the processing safety are ensured.
At present mainly adopt complex film structure wrapping bag, utilize glue to adhere the film of different functions together, satisfy the requirement of sauce material bag packing as far as, for example: the PET/AL/PE composite film has excellent tensile property, barrier property and heat sealing property, but has the problems of non-transparency, poor puncture resistance and the like; for example: the PA/AL/PE composite film has excellent tensile property, puncture resistance, barrier property and heat sealing property, but has the problem of opaqueness; for example: the PET/PA/PVDC/PE composite film has excellent tensile property, puncture resistance, barrier property, heat sealing property and transparency, but the PVDC is not environment-friendly;
the application number of 201721210924.X 'A polyester composite film for an extrusion composite packaging bag' discloses a polyester composite film for an extrusion composite packaging bag, the publication date of the polyester composite film is 5 months and 1 day in 2018 years, the polyester composite film comprises a blocking layer and a heat sealing layer, the blocking layer and the heat sealing layer are laminated into a whole through a cross-linking agent layer, the blocking layer comprises a biaxially oriented polyester film, the surface of the biaxially oriented polyester film is plated with an aluminum layer, and the other surface of the biaxially oriented polyester film is connected with the heat sealing layer through a cross-linking agent, so that the composite film for the packaging bag is obtained; however, the composite film is not easy to tear, so that the bag opening operation of the packaging bag is very inconvenient, and if the packaging bag is directly torn, the contents are spilled due to large tearing resistance;
moreover, the composite film with the structure is compounded by adopting glue, so that the cost is high and the environmental protection problem is caused; the sauce bag does not have the linear easy-tearing performance, and the sauce bag is easy to spill when the sauce bag is opened.
SUMMERY OF THE UTILITY MODEL
For solving mentioning among the above-mentioned background art, current complex film does not possess the straight line and easily tears the performance, the utility model provides a biaxial stretching polyamide film that sauce material bag packing was used, including at least four-layer structure, four-layer structure top-down easily tears layer, barrier layer, second nylon straight line for first nylon straight line in proper order and easily tears layer and heat-seal layer.
On the basis of the structure, the nylon linear easy-tearing structure further comprises a light extinction layer arranged above the first nylon linear easy-tearing layer.
On the basis of the structure, the barrier layer is an MXD6 barrier layer.
On the basis of the structure, the thickness of the first nylon linear easy-tearing layer is 1-3 mu m.
On the basis of the structure, the thickness of the barrier layer is 3-6 μm.
On the basis of the structure, the thickness of the second nylon linear easy-tearing layer is 3-8 μm.
On the basis of the structure, the heat sealing layer is a heat-sealable biaxially oriented nylon film.
On the basis of the structure, the thickness of the heat sealing layer is 2-5 μm.
On the basis of the structure, the extinction layer is a biaxially oriented nylon extinction film.
On the basis of the structure, the thickness of the extinction layer is 1-3 μm.
The utility model provides a pair of biaxial stretching polyamide film that sauce material bag packing was used compares with prior art, has following advantage:
the biaxially oriented polyamide film for packaging sauce bags provided by the utility model has excellent straight-line easy-tearing performance, and solves the problem that the sauce is spilled due to the difficult tearing and tearing inclination of the common sauce bags; the barrier layer has excellent barrier and aroma-keeping performances, and can prolong the shelf life of the sauce; the arrangement of the heat sealing layer ensures the heat sealing performance of the film.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a two-way stretch polyamide film for packaging sauce bags, which is provided by the utility model;
fig. 2 is the utility model provides a sauce material bag packing is with two-way stretch polyamide film that has extinction performance.
Reference numerals:
10 first nylon Linear easy tear layer 20 Barrier layer 30 second Nylon Linear easy tear layer
40 heat-seal layer 50 extinction layer
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The utility model provides a biaxial stretching polyamide film that sauce material bag packing was used, its characterized in that: the heat-seal film comprises at least four layers of structures, wherein the four layers of structures sequentially comprise a first nylon linear easy-tear layer 10, a barrier layer 20, a second nylon linear easy-tear layer 30 and a heat-seal layer 40 from top to bottom.
In specific implementation, as shown in fig. 1, the biaxially oriented polyamide film for sauce bag packaging comprises at least four layers of structures, wherein the four layers of structures sequentially comprise a first nylon linear easy-tearing layer 10, a barrier layer 20, a second nylon linear easy-tearing layer 30 and a heat-sealing layer 40 from top to bottom; the polyamide film is formed by biaxial stretching in a LISIM (magnetically driven linear synchronous stretching) line through a multilayer co-extrusion technology, the compatibility of materials of each layer is good, and bonding resin is not required to be added between layers in the extrusion process; the prepared polyamide film does not need to be compounded and can be used independently;
the first nylon linear easy-tearing layer 10 and the second nylon linear easy-tearing layer 30 can adopt a linear easy-tearing polyamide film disclosed in the patent document ZL201610326000.X of the patent number of a linear easy-tearing polyamide film and a preparation method thereof, and the linear easy-tearing polyamide film consists of polyamide and MXD6 and has excellent linear easy-tearing performance, or adopts other nylon linear easy-tearing layers;
the barrier layer 20 can be made of an existing MXD6 nylon material, and the MXD6 nylon material has excellent oxygen-blocking and water-blocking performances, so that the polyamide film can meet the requirements on oxygen-blocking and water-blocking, can keep the freshness of food within a certain time when used as a food packaging film, and can also keep the fragrance of the food, or can be selected according to the barrier effect requirement of an actual product;
the heat-sealing layer 40 is arranged on the innermost layer, and can be a heat-sealable biaxially oriented nylon film disclosed in the patent document CN108481866A, namely heat-sealable biaxially oriented nylon film and a preparation method thereof, the polyamide heat-sealing layer 40 has good heat-sealing performance and high heat-sealing strength, and is not required to be compounded with a polyolefin film, or other heat-sealing nylon materials commonly used in the prior art or the market are adopted.
The biaxially oriented polyamide film for packaging sauce bags provided by the utility model at least comprises four film layer structures formed by co-extrusion biaxial orientation, wherein the film layer structures sequentially comprise a first nylon linear easy-tearing layer 10, a barrier layer 20, a second nylon linear easy-tearing layer 30 and a heat-sealing layer 40 from top to bottom; the nylon linear easy-to-tear layer of the polyamide film has excellent linear easy-to-tear performance, and solves the problem that sauce is scattered due to the fact that a common sauce bag is not easy to tear and is torn and inclined; the barrier layer 20 has excellent barrier and aroma-keeping properties, and can prolong the shelf life of the sauce; the heat sealing layer 40 is arranged to ensure the heat sealing performance of the film; in addition, the polyamide film is formed by double-drawing through a multilayer co-extrusion technology, does not need adhesive compounding, can be used independently, and is energy-saving and environment-friendly.
It should be noted that fig. 1 is only an example provided by the polyamide film of the present invention, and the polyamide film of the present invention includes a multi-layer co-extruded biaxially oriented film, which of course does not exclude designing more film structures for other effects. Based on the utility model discloses a rete structure basis is in order to make the film have other performance effects the utility model discloses the product that sets up other retes between each layer also all belongs to the utility model discloses a protection scope.
Preferably, the light extinction layer 50 is arranged above the first nylon linear easy-tear layer 10.
In specific implementation, as shown in fig. 2, a matte layer 50 is further disposed above the first nylon linear easy-tear layer 10, and the matte layer 50 may be a BOPA matte film disclosed in patent document "a BOPA matte film and a preparation method thereof" with patent number ZL201010596162.8, and the matte film has good optical properties, such as low glossiness and low haze, or other existing or commercially available matte nylon materials;
the extinction layer 50 is beneficial to avoiding strong light to deteriorate sauce materials in the packaging bag, and meanwhile, gives soft, comfortable and hazy visual effects to people, and can stimulate the purchasing desire of consumers.
Preferably, the barrier layer 20 is an MXD6 barrier layer.
In specific implementation, the barrier layer 20 is an MXD6 barrier layer, and an MXD6 nylon material has excellent oxygen and water blocking performance, so that the polyamide film can achieve excellent water and oxygen blocking effects.
Preferably, the first nylon linear easy-tear layer 10 has a thickness of 1 to 3 μm.
Preferably, the barrier layer 20 has a thickness of 3 to 6 μm.
Preferably, the thickness of the second nylon linear easy-tear layer 30 is 3 to 8 μm.
Preferably, the thickness of the heat-seal layer 40 is 2 to 5 μm.
Preferably, the thickness of the matting layer 50 is 1 to 3 μm.
In specific implementation, through comparison and combination of multiple tests with the production cost of the film, the thickness of the first nylon linear easy-tear layer 10 is 1-3 μm, the thickness of the barrier layer 20 is 3-6 μm, the thickness of the second nylon linear easy-tear layer 30 is 3-8 μm, the thickness of the heat-seal layer 40 is 2-5 μm, and the thickness of the extinction layer 50 is 1-3 μm, the total thickness of the biaxially oriented polyamide film for packaging the sauce material bag is smaller, and the biaxially oriented polyamide film is more economical and practical, meets market requirements and has high cost performance.
Preferably, the heat-seal layer 40 is a heat-sealable biaxially oriented nylon film.
In specific implementation, a heat-sealing nylon material commonly used in the prior art can be adopted.
Preferably, the matte layer 50 is a biaxially oriented nylon matte film.
In specific implementation, a delustered nylon material commonly used in the prior art can be adopted.
Preferably, the first nylon linear easy-tear layer 10 and the heat-seal layer 40 contain a mouth-opening agent and a slipping agent.
In specific implementation, the first nylon linear easy-tear layer 10 and the heat-seal layer 40 are made of nylon heat-seal materials with opening agents and slipping agents added in the market, and due to the fact that the heat-seal layer 40 is added with a small amount of opening agents and slipping agents, the anti-adhesion effect can be achieved, and the film can be prevented from being broken.
Although terms such as first nylon linear easy-tear layer, barrier layer, second nylon linear easy-tear layer, heat seal layer, matte layer, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A two-way stretching polyamide film for sauce bag packaging is characterized in that: the heat-seal nylon linear easy-tear film comprises at least four layers of structures, wherein the four layers of structures sequentially comprise a first nylon linear easy-tear layer (10), a barrier layer (20), a second nylon linear easy-tear layer (30) and a heat-seal layer (40) from top to bottom.
2. The biaxially oriented polyamide film for sauce pouch packaging according to claim 1, wherein: the nylon linear easy-tearing layer is characterized by further comprising a light extinction layer (50) arranged above the first nylon linear easy-tearing layer (10).
3. The biaxially oriented polyamide film for sauce pouch packaging according to claim 1, wherein: the barrier layer (20) is an MXD6 barrier layer.
4. The biaxially oriented polyamide film for sauce pouch packaging according to claim 1, wherein: the thickness of the first nylon linear easy-tearing layer (10) is 1-3 mu m.
5. The biaxially oriented polyamide film for sauce pouch packaging according to claim 1, wherein: the barrier layer (20) has a thickness of 3 to 6 μm.
6. The biaxially oriented polyamide film for sauce pouch packaging according to claim 1, wherein: the thickness of the second nylon linear easy-tearing layer (30) is 3-8 mu m.
7. The biaxially oriented polyamide film for sauce pouch packaging according to claim 1, wherein: the heat sealing layer (40) is a heat-sealable biaxially oriented nylon film.
8. The biaxially oriented polyamide film for sauce pouch packaging according to claim 1, wherein: the thickness of the heat sealing layer (40) is 2-5 mu m.
9. The biaxially oriented polyamide film for sauce pouch packaging according to claim 2, wherein: the extinction layer (50) is a two-way stretching nylon extinction film.
10. The biaxially oriented polyamide film for sauce pouch packaging according to claim 2, wherein: the thickness of the extinction layer (50) is 1-3 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020502829.2U CN212124442U (en) | 2020-04-08 | 2020-04-08 | Biaxially oriented polyamide film for sauce bag packaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020502829.2U CN212124442U (en) | 2020-04-08 | 2020-04-08 | Biaxially oriented polyamide film for sauce bag packaging |
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| Publication Number | Publication Date |
|---|---|
| CN212124442U true CN212124442U (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020502829.2U Active CN212124442U (en) | 2020-04-08 | 2020-04-08 | Biaxially oriented polyamide film for sauce bag packaging |
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