CN216683634U - Multilayer co-extrusion bubble vacuum standing bag film - Google Patents
Multilayer co-extrusion bubble vacuum standing bag film Download PDFInfo
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Abstract
A multilayer co-extrusion bubble vacuum standing bag film relates to a vacuum standing bag film. The utility model aims to solve the technical problem of high film packaging cost of the existing packaging vacuum standing bag. The utility model provides a multilayer co-extrusion bubble vacuum standing bag film which sequentially comprises a positioning gloss oil layer, an ink layer, a PET surface layer, a first high-strength adhesive resin layer, a linear low-density polyethylene layer, a second high-strength adhesive resin layer, a first polyamide layer, a third high-strength adhesive resin layer, a second polyamide layer, a fourth high-strength adhesive resin, a bubble polyethylene layer, a polyolefin elastomer layer and an ultralow-temperature high-strength heat seal layer from outside to inside. The co-extrusion film produced by the utility model has stronger functionality and comprehensiveness, can realize stronger surface printing effect, vacuumizing and high tensile property, improves the low-temperature brittleness, the falling bag breaking rate and the like of the film produced by the co-extrusion process, and solves the problem that the rice, coarse cereals, cereals and other heavy packages adopt inner and outer matched packages.
Description
Technical Field
The utility model relates to a vacuum standing bag film.
Background
Along with the improvement of living standard of people, the daily life has higher and higher packaging requirements on rice, coarse cereals, cereals and the like, the high bursting strength, the vacuumizing performance and the puncture resistance are required, the good fragrance retention, the taste and the like are required, the multifunctional performance is realized, the conventional rice and coarse cereals vacuum heavy packaging bag generally needs to adopt PA/PE vacuum as an inner bag and PET/PE or PET/PA/PE high strength as an outer bag, and multiple functionalities can be integrated into a whole, so that the packaging cost is increased, and the requirements of low-carbon and thinning packaging policies advocated by the state are not met.
SUMMERY OF THE UTILITY MODEL
The utility model provides a multilayer co-extrusion bubble vacuum standing bag film, which aims to solve the technical problem of high packaging cost of the existing packaging vacuum standing bag film.
The multilayer co-extrusion bubble vacuum standing bag film sequentially consists of a positioning gloss oil layer 1, an ink layer 2, a PET surface layer 3, a first high-strength bonding resin layer 4, a linear low-density polyethylene (LLDPE) layer 5, a second high-strength bonding resin layer 6, a first Polyamide (PA) layer 7, a third high-strength bonding resin layer 8, a second Polyamide (PA) layer 9, a fourth high-strength bonding resin 10, a bubble Polyethylene (PE) layer 11, a polyolefin elastomer layer (POE)12 and an ultralow-temperature high-strength heat seal layer 13 from outside to inside;
the positioning gloss oil layer 1 is the outermost layer, adopts water-based surface printing gloss oil, carries out accurate positioning coating according to different colors and patterns designed by customer requirements, only coats the outer layer of the ink layer 2, plays the roles of protecting the abrasion resistance and the oxidation resistance of the ink, and has the gram weight of 1-2 g/m2The thickness is 1-2 μm;
the ink layer 2 is water-based surface printing polyurethane ink which has better adhesive force and glossiness with the PET surface layer 3, and the water-based ink does not contain solvent, is safe and environment-friendly and has no solvent residue;
the PET surface layer 3 is subjected to corona treatment in the production process, has no less than 48 dynes, has stronger mechanical strength, printability and barrier property, and is also favorable for better heat-resisting suitability in the bag making process of the product when the PET is used for extruding the surface layer;
the first high-strength adhesive resin layer 4 is maleic anhydride grafted polyolefin, and good adhesion between the PET surface layer 3 and the linear low-density polyethylene (LLDPE) layer 5 is realized through chemical grafting, copolymerization, physical blending and other reactions;
the LLDPE layer 5 is added with benzotriazole ultraviolet stabilizers and polyphenol hindered phenol antioxidant master batches to protect the high-molecular co-extrusion material from being damaged by ultraviolet rays and oxygen, so that the effect of prolonging the quality guarantee period of the film is achieved;
the second high-strength bonding resin layer 6 is ModicTMThe polyolefin adhesive resin realizes high-strength adhesion between the linear low-density polyethylene (LLDPE) layer 5 and the first Polyamide (PA) layer 7, thereby avoiding the layering phenomenon in the processing and using processes of the co-extruded film;
the first PA layer 7 is high-barrier homopolymerized PA, has good barrier property to oxygen and water, and simultaneously has better breaking resistance and puncture resistance to the vacuumizing process of packaging rice, coarse cereals and the like;
the third bonding resin layer 8 is maleic anhydride modified polyolefin resin, and the first Polyamide (PA) layer 7 and the second Polyamide (PA) layer 9 are preferably bonded together;
the second PA layer 9 is high-barrier homopolymerized PA, and is matched with the first PA layer 7 to realize high barrier property, high puncture resistance and better film forming flatness;
the fourth high-strength bonding resin 10 is maleic anhydride modified polyolefin, so that high-strength bonding between the second Polyamide (PA) layer 9 and the bubble Polyethylene (PE) layer 11 is realized;
the bubble Polyethylene (PE) layer 11 extrudes shuttle-shaped bubble layers with different sizes by adding foaming particles with different proportions to play a role in gravity buffering, so that the falling resistance of the multilayer co-extrusion bubble packaging vacuum bag is realized, the bag breakage rate of a heavy packaging product in the transportation and use processes is reduced, and the adding proportion of the foaming particles is 1-3%;
the polyolefin elastomer layer (POE)12 is an ethylene-alpha-olefin copolymer, and physical cross-linking of polyethylene chain crystallization regions is realized by branching polyethylene, so that the ethylene-alpha-olefin copolymer has outstanding elasticity and toughness in a lower environment, the brittleness of the multilayer co-extrusion bubble packaging vacuum bag at a low temperature of-18 ℃ to-40 ℃ can be greatly reduced, high flexibility is shown, and the bag breakage rate is reduced;
the ultralow-temperature high-strength heat seal layer 13 is the innermost layer of the co-extruded film, specifically metallocene polyethylene, so that the excellent stain resistance, ultralow temperature property, vacuumizing property and better heat seal strength of the inner layer film are realized, and the situation that the co-extruded film is easy to deform and not thermally seal at low temperature during the self-centering and middle-temperature forming of the bag making process is avoided to a great extent, so that the leakage and rupture phenomena of the co-extruded packaging bag in the using process are reduced.
The utility model provides a multilayer co-extrusion bubble vacuum standing bag film which is produced by adopting a PET surface layer, extruding a double PA (polyamide) structure in the middle, adopting a high-strength vacuumizing heat seal layer as an inner layer and adopting a high-strength vacuumizing heat seal layer as an innermost layer, and adopting eleven layers (No. 3 to No. 13) as an integral film through a down-blowing water-cooling film blowing technology.
The utility model has the beneficial effects that:
the utility model provides a multilayer is crowded bubble vacuum bag film of standing altogether adopts ten layers of coextrusion technique production, can set for independent function prescription at each layer pertinence according to the content requirement, the cost of function particle is practiced thrift to very big degree, avoid the unnecessary waste, and the crowded film functionality altogether of production, the comprehensiveness is stronger, the crowded technology production film can realize stronger top layer printing effect, the evacuation, high tensile property, improve film low temperature fragility, fall broken bag rate etc. the problem of heavy packing adoption such as rice, the coarse cereals, outer supporting packing, simultaneously, adopt eight edge sealing bag making mode, the outward appearance effect embodies better, save space, convenient storage, and the practicality is higher, receive consumers' favor deeply.
Drawings
FIG. 1 is a schematic cross-sectional view of a multilayer coextruded bubble vacuum standing bag film according to a first embodiment.
Detailed Description
The first embodiment is as follows: the embodiment is a multilayer co-extrusion bubble vacuum standing bag film, as shown in fig. 1, which comprises a positioning gloss oil layer 1, an ink layer 2, a PET surface layer 3, a first high-strength adhesive resin layer 4, a linear low-density polyethylene (LLDPE) layer 5, a second high-strength adhesive resin layer 6, a first polyamide layer 7, a third high-strength adhesive resin layer 8, a second polyamide layer 9, a fourth high-strength adhesive resin 10, a bubble polyethylene layer 11, a polyolefin elastomer layer 12 and an ultralow-temperature high-strength heat seal layer 13 from outside to inside in sequence;
the positioning gloss oil layer 1 is the outermost layer, adopts water-based surface printing gloss oil, carries out accurate positioning coating according to different colors and patterns designed by customer requirements, only coats the outer layer of the ink layer 2, plays the roles of protecting the abrasion resistance and the oxidation resistance of the ink, and has the gram weight of 1-2 g/m2The thickness is 1-2 μm;
the ink layer 2 is water-based surface printing polyurethane ink which has better adhesive force and glossiness with the PET surface layer 3, and the water-based ink does not contain solvent, is safe and environment-friendly and has no solvent residue;
the PET surface layer 3 is subjected to corona treatment in the production process, has no less than 48 dynes, has stronger mechanical strength, printability and barrier property, and is also favorable for better heat-resisting suitability in the bag making process of the product when the PET is used for extruding the surface layer;
the first high-strength adhesive resin layer 4 is maleic anhydride grafted polyolefin, and good adhesion between the PET surface layer 3 and the linear low-density polyethylene (LLDPE) layer 5 is realized through chemical grafting, copolymerization, physical blending and other reactions;
the LLDPE layer 5 is added with benzotriazole ultraviolet stabilizers and polyphenol hindered phenol antioxidant master batches to protect the high-molecular co-extrusion material from being damaged by ultraviolet rays and oxygen, so that the effect of prolonging the quality guarantee period of the film is achieved;
the second high-strength bonding resin layer 6 is ModicTMThe polyolefin adhesive resin realizes high-strength adhesion between the linear low-density polyethylene (LLDPE) layer 5 and the first Polyamide (PA) layer 7, thereby avoiding the layering phenomenon in the processing and using processes of the co-extruded film;
the first PA layer 7 is high-barrier homopolymerized PA, has good barrier property to oxygen and water, and simultaneously has better breaking resistance and puncture resistance to the vacuumizing process of packaging rice, coarse cereals and the like;
the third bonding resin layer 8 is maleic anhydride modified polyolefin resin, and the first Polyamide (PA) layer 7 and the second Polyamide (PA) layer 9 are preferably bonded together;
the second PA layer 9 is high-barrier homopolymerized PA, and is matched with the first PA layer 7 to realize high barrier property, high puncture resistance and better film forming flatness;
the fourth high-strength bonding resin 10 is maleic anhydride modified polyolefin, so that high-strength bonding between the second Polyamide (PA) layer 9 and the bubble Polyethylene (PE) layer 11 is realized;
the bubble Polyethylene (PE) layer 11 extrudes shuttle-shaped bubble layers with different sizes by adding foaming particles with different proportions to play a role in gravity buffering, so that the falling resistance of the multilayer co-extrusion bubble packaging vacuum bag is realized, the bag breakage rate of a heavy packaging product in the transportation and use processes is reduced, and the adding proportion of the foaming particles is 1-3%;
the polyolefin elastomer layer (POE)12 is an ethylene-alpha-olefin copolymer, and the physical cross-linking of a polyethylene chain crystallization region is realized through branched polyethylene, so that the outstanding elasticity and toughness of the ethylene-alpha-olefin copolymer in a lower environment are realized, the brittleness of the multilayer co-extrusion bubble packaging vacuum bag at the low temperature of between 18 ℃ below zero and 40 ℃ below zero can be greatly reduced, the high flexibility is shown, and the bag breakage rate is reduced;
the ultralow-temperature high-strength heat seal layer 13 is the innermost layer of the co-extruded film, specifically metallocene polyethylene, so that the excellent stain resistance, ultralow temperature property, vacuumizing property and better heat seal strength of the inner layer film are realized, and the situation that the co-extruded film is easy to deform and not thermally seal at low temperature during the self-centering and middle-temperature forming of the bag making process is avoided to a great extent, so that the leakage and rupture phenomena of the co-extruded packaging bag in the using process are reduced.
This embodiment provides a multilayer is crowded bubble vacuum altogether and is stood a bag film, adopt the PET top layer, two PA (polyamide) structures are extruded to the centre, inlayer intermediate layer bubble layer, inlayer adopts high-strength evacuation heat seal layer, eleven layers (No. 3 to No. 13) film as an organic whole, form through blowing down the production of water-cooling blown film technique, through crowded completion altogether, pass through printing ink layer 2 and coating location gloss oil layer 1 again, eight sides vacuum integer is produced through eight edge sealing bag machine at last and is proclaimed oneself the bag of standing, possess high strength, resistant broken outer bag performance, have good puncture resistance simultaneously concurrently, the evacuation, inner bag performance such as low temperature pliability, a bag is multi-functional, and the cost is practiced thrift to very big degree, whole production process need not compound, low carbon environmental protection.
The beneficial effects of the embodiment are as follows:
the utility model provides a multilayer is crowded bubble vacuum bag film of standing altogether adopts ten layers of coextrusion technique production, can set for independent function prescription at each layer pertinence according to the content requirement, the cost of function particle is practiced thrift to very big degree, avoid the unnecessary waste, and the crowded film functionality altogether of production, the comprehensiveness is stronger, the crowded technology production film can realize stronger top layer printing effect, the evacuation, high tensile property, improve film low temperature fragility, fall broken bag rate etc. the problem of heavy packing adoption such as rice, the coarse cereals, outer supporting packing, simultaneously, adopt eight edge sealing bag making mode, the outward appearance effect embodies better, save space, convenient storage, and the practicality is higher, receive consumers' favor deeply.
The second embodiment is as follows: the first difference between the present embodiment and the specific embodiment is: the thickness of the positioning gloss oil layer 1 is 1-2 μm. The rest is the same as the first embodiment.
The third concrete implementation mode: the present embodiment differs from the first or second embodiment in that: the thickness of the ink layer 2 is 1-3 μm. The others are the same as in the first or second embodiment.
The fourth concrete implementation mode: the difference between this embodiment mode and one of the first to third embodiment modes is: the thickness of the PET surface layer 3 is 10-20 μm. The rest is the same as one of the first to third embodiments.
The fifth concrete implementation mode: the fourth difference between this embodiment and the specific embodiment is that: the thickness of the linear low-density polyethylene layer 5 is 15-25 μm. The rest is the same as the fourth embodiment.
The sixth specific implementation mode: the fourth difference between this embodiment and the specific embodiment is that: the thickness of the first polyamide layer 7 is 6-20 μm. The rest is the same as the fourth embodiment.
The seventh embodiment: the fourth difference between this embodiment and the specific embodiment is that: the thickness of the second polyamide layer 9 is 6-20 μm. The rest is the same as the fourth embodiment.
The specific implementation mode is eight: the fourth difference between this embodiment and the specific embodiment is that: the thickness of the polyethylene bubble layer 11 is 6-10 μm. The rest is the same as the fourth embodiment.
The specific implementation method nine: the fourth difference between this embodiment and the specific embodiment is that: the polyolefin elastomer layer 12 has a thickness of 6 to 25 μm. The rest is the same as the fourth embodiment.
The detailed implementation mode is ten: the fourth difference between this embodiment and the specific embodiment is that: the thickness of the ultralow temperature high-strength heat sealing layer 13 is 20-40 μm. The rest is the same as the fourth embodiment.
The utility model was verified with the following tests:
test one: the test is a multilayer co-extrusion bubble vacuum standing bag film, as shown in fig. 1, which sequentially consists of a positioning gloss oil layer 1, an ink layer 2, a PET surface layer 3, a first high-strength adhesive resin layer 4, a linear low-density polyethylene (LLDPE) layer 5, a second high-strength adhesive resin layer 6, a first polyamide layer 7, a third high-strength adhesive resin layer 8, a second polyamide layer 9, a fourth high-strength adhesive resin 10, a bubble polyethylene layer 11, a polyolefin elastomer layer 12 and an ultralow-temperature high-strength heat seal layer 13 from outside to inside;
the positioning gloss oil layer 1 is the outermost layer, adopts water-based surface printing gloss oil, carries out accurate positioning coating according to different colors and patterns designed by customer requirements, only coats the outer layer of the ink layer 2, plays the roles of protecting the abrasion resistance and the oxidation resistance of the ink, and has the gram weight of 1-2 g/m2The thickness is 1-2 μm;
the ink layer 2 is water-based surface printing polyurethane ink which has better adhesive force and glossiness with the PET surface layer 3, and the water-based ink does not contain solvent, is safe and environment-friendly and has no solvent residue;
the PET surface layer 3 is subjected to corona treatment in the production process, has no less than 48 dynes, has stronger mechanical strength, printability and barrier property, and is also favorable for better heat-resisting suitability in the bag making process of the product when the PET is used for extruding the surface layer;
the first high-strength adhesive resin layer 4 is maleic anhydride grafted polyolefin, and good adhesion between the PET surface layer 3 and the linear low-density polyethylene (LLDPE) layer 5 is realized through chemical grafting, copolymerization, physical blending and other reactions;
the LLDPE layer 5 is added with benzotriazole ultraviolet stabilizers and polyphenol hindered phenol antioxidant master batches to protect the high-molecular co-extrusion material from being damaged by ultraviolet rays and oxygen, so that the effect of prolonging the quality guarantee period of the film is achieved;
the second high-strength bonding resin layer 6 is ModicTMPolyolefin-based adhesive resin for realizing the Linear Low Density Polyethylene (LLDPE) layer 5 and the first polyimideThe high-strength adhesion between the amine (PA) layers 7 can avoid the layering phenomenon in the processing and using processes of the co-extruded film;
the first polyamide PA layer 7 is high-barrier homopolymerized PA, has good barrier property to oxygen and water, and simultaneously has better breaking resistance and puncture resistance to the vacuumizing process of packaging rice, coarse cereals and the like;
the third bonding resin layer 8 is maleic anhydride modified polyolefin resin, and the first Polyamide (PA) layer 7 and the second Polyamide (PA) layer 9 are preferably bonded together;
the second polyamide PA layer 9 is high-barrier homopolymerized PA, and is matched with the first PA layer 7 to realize high barrier property, high puncture resistance and better film forming flatness;
the fourth high-strength bonding resin 10 is maleic anhydride modified polyolefin, so that high-strength bonding between the second Polyamide (PA) layer 9 and the bubble Polyethylene (PE) layer 11 is realized;
the bubble Polyethylene (PE) layer 11 extrudes shuttle-shaped bubble layers with different sizes by adding foaming particles with different proportions to play a role in gravity buffering, so that the falling resistance of the multilayer co-extrusion bubble packaging vacuum bag is realized, the bag breakage rate of a heavy packaging product in the transportation and use processes is reduced, and the adding proportion of the foaming particles is 1-3%;
the polyolefin elastomer layer (POE)12 is an ethylene-alpha-olefin copolymer, and physical cross-linking of polyethylene chain crystallization regions is realized by branching polyethylene, so that the ethylene-alpha-olefin copolymer has outstanding elasticity and toughness in a lower environment, the brittleness of the multilayer co-extrusion bubble packaging vacuum bag at a low temperature of-18 ℃ to-40 ℃ can be greatly reduced, high flexibility is shown, and the bag breakage rate is reduced;
the ultralow-temperature high-strength heat seal layer 13 is the innermost layer of the co-extruded film, specifically metallocene polyethylene, so that the excellent stain resistance, ultralow temperature property, vacuumizing property and better heat seal strength of the inner layer film are realized, and the situation that the co-extruded film is easy to deform and not thermally seal at low temperature during the self-centering and middle-temperature forming of the bag making process is avoided to a great extent, so that the leakage and rupture phenomena of the co-extruded packaging bag in the using process are reduced.
This experiment provides a multilayer is crowded bubble vacuum altogether and is stood a bag film, adopt the PET top layer, two PA (polyamide) structures are extruded to the centre, inlayer intermediate layer bubble layer, inlayer adopts high-strength evacuation heat seal layer, eleven layers (No. 3 to No. 13) film as an organic whole, form through blowing down the production of water-cooling blown film technique, through crowded completion altogether, pass through printing ink layer 2 and coating location gloss oil layer 1 again, produce the eight sides vacuum integer through eight sides bag machine of making a bag at last and proclaim oneself the bag of standing, possess high strength, resistant broken outer bag performance, have good puncture resistance simultaneously concurrently, the evacuation, inner bag performance such as low temperature pliability, a bag is multi-functional, and the cost is practiced thrift to very big degree, whole production process need not compound, low carbon environmental protection.
The beneficial effect of this experiment:
the utility model provides a multilayer is crowded bubble vacuum bag film of standing altogether adopts ten layers of coextrusion technique production, can set for independent function prescription at each layer pertinence according to the content requirement, the cost of function particle is practiced thrift to very big degree, avoid the unnecessary waste, and the crowded film functionality altogether of production, the comprehensiveness is stronger, the crowded technology production film can realize stronger top layer printing effect, the evacuation, high tensile property, improve film low temperature fragility, fall broken bag rate etc. the problem of heavy packing adoption such as rice, the coarse cereals, outer supporting packing, simultaneously, adopt eight edge sealing bag making mode, the outward appearance effect embodies better, save space, convenient storage, and the practicality is higher, receive consumers' favor deeply.
Claims (10)
1. The utility model provides a multilayer is crowded bubble vacuum bag film of standing altogether, its characterized in that multilayer is crowded bubble vacuum bag film of standing altogether outside-in proper order by location gloss oil layer (1), printing ink layer (2), PET top layer (3), first high strength bonding resin layer (4), linear low density polyethylene layer (5), second high strength bonding resin layer (6), first polyamide layer (7), third high strength bonding resin layer (8), second polyamide layer (9), fourth high strength bonding resin (10), bubble polyethylene layer (11), polyolefin elastomer layer (12) and ultra-low temperature high strength heat seal layer (13) are constituteed.
2. A multilayer co-extruded bubble vacuum standing pouch film as defined in claim 1 wherein the thickness of the positioning gloss oil layer (1) is 1-2 μm.
3. The multilayer co-extruded bubble vacuum standing bag film as claimed in claim 1, wherein the thickness of the ink layer (2) is 1 μm to 3 μm.
4. A multilayer coextruded bubble vacuum standing pouch film according to claim 1, characterised in that the thickness of the PET skin layer (3) is 10 μm to 20 μm.
5. A multilayer coextruded bubble vacuum standing bag film according to claim 1, characterised in that the thickness of the linear low density polyethylene layer (5) is 15 μm to 25 μm.
6. A multilayer coextruded bubble vacuum standing bag film according to claim 1, characterised in that the thickness of the first polyamide layer (7) is 6 μm to 20 μm.
7. A multilayer coextruded bubble vacuum standing pouch film according to claim 1, characterised in that the second polyamide layer (9) has a thickness of 6 to 20 μm.
8. A multilayer coextruded bubble vacuum standing bag film according to claim 1, characterised in that the thickness of the bubble polyethylene layer (11) is 6 μm to 10 μm.
9. A multilayer coextruded bubble vacuum standing bag film according to claim 1 wherein the thickness of the polyolefin elastomer layer (12) is 6 to 25 μm.
10. A multilayer coextruded bubble vacuum standing bag film according to claim 1, characterised in that the ultra low temperature high strength heat seal (13) has a thickness of 20 μm to 40 μm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117283955A (en) * | 2023-10-26 | 2023-12-26 | 四川省新都永志印务有限公司 | PE film for low-temperature anti-breaking flexible package inner layer and preparation method thereof |
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2021
- 2021-12-17 CN CN202123186591.0U patent/CN216683634U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117283955A (en) * | 2023-10-26 | 2023-12-26 | 四川省新都永志印务有限公司 | PE film for low-temperature anti-breaking flexible package inner layer and preparation method thereof |
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Address after: No.358, Airport Road, Daoli District, Harbin City, Heilongjiang Province Patentee after: Harbin Pengcheng New Material Technology Co.,Ltd. Address before: No.358, Airport Road, Daoli District, Harbin City, Heilongjiang Province Patentee before: HARBIN INATI ON PHARMACEUTICAL PACKAGING NEW MATERIAL TECHNOLOGY CO.,LTD. |
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