CN211591634U - Multilayer co-extrusion high-barrier blister packaging hard sheet - Google Patents
Multilayer co-extrusion high-barrier blister packaging hard sheet Download PDFInfo
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- CN211591634U CN211591634U CN201921736803.8U CN201921736803U CN211591634U CN 211591634 U CN211591634 U CN 211591634U CN 201921736803 U CN201921736803 U CN 201921736803U CN 211591634 U CN211591634 U CN 211591634U
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Abstract
The utility model discloses a compound hard sheet of high resistant separation bubble cap is crowded altogether to multilayer is equipped with thermoforming resin layer, first adhesion layer, high resistant separation layer, second adhesion layer, surface heat-seal layer, third adhesion layer, heat shield layer from outside to inside in proper order. The utility model discloses the multilayer crowded high separation blister packaging hard sheet altogether who obtains has performances such as high separation nature, good extensibility, high strength under the prerequisite of saving the cost.
Description
Technical Field
The utility model relates to a hard packing sheet, more specifically say, relate to a multilayer is crowded hard sheet of high resistant and separate bubble cap packing altogether.
Background
Blister packaging is a packaging method in which a product is sealed between a blister formed from a transparent plastic sheet and a base. Since the blister package has the characteristics of high barrier property, good sealing property, excellent sanitary performance and the like, the blister package is widely applied to the sales package of food, cosmetics, stationery, toys, gifts, tools and electromechanical parts besides being applied to the package of pharmaceutical products such as pharmaceutical tablets, capsules, suppositories and the like. The PVC/PVDC composite hard sheet for medicine packaging in the market has good barrier property, but PVDC is attached to a PVC base material in a coating form, and belongs to a two-step processing method.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that not enough among the above-mentioned prior art is directed at, a multilayer is crowded high separation blister packaging hard sheet altogether is provided, is equipped with thermoforming resin layer, first adhesion layer, high barrier layer, second adhesion layer, surface heat-seal layer, third adhesion layer, heat shield layer from outside to inside in proper order.
Preferably, the thermoforming resin layer is one of a biaxially oriented nylon film, a biaxially oriented polyester film and a biaxially oriented polypropylene film, and the thickness of the thermoforming resin layer is 10-25 μm.
Preferably, the high barrier layer is an alloy aluminum foil layer, and the thickness of the alloy aluminum foil layer is 30-45 μm.
Preferably, wherein the alloy aluminum foil layer is provided with a pattern.
Preferably, the surface heat sealing layer is a vinylidene fluoride layer, and the thickness of the vinylidene fluoride film is 70-120 μm.
Preferably, the first adhesive layer, the second adhesive layer and the third adhesive layer are polyurethane resin modified by one of EMA, EMAA, EVA, maleic anhydride and GMA, and the thickness of each of the first adhesive layer, the second adhesive layer and the third adhesive layer is 15-25 μm.
Preferably, a wave-shaped groove is formed between the first adhesive layer and the thermoforming resin layer. Wave type recess can increase the area of contact between first bonding layer and the thermoforming resin layer to improve the bonding strength between first bonding layer and the thermoforming resin.
Preferably, the upper and lower surfaces of the second adhesive layer are both provided with a frosted surface modified by inorganic nanoparticles.
Preferably, the heat shielding layer is a carbon nanotube film modified by hollow glass beads, and the thickness of the carbon nanotube film modified by the hollow glass beads is 10-18 μm.
Preferably, wherein a saw-tooth groove is provided between the third adhesive layer and the heat shield layer. A serrated groove is provided between the third adhesive layer and the heat shield layer. The zigzag groove between the third adhesive layer and the thermoforming resin layer can save raw materials on the one hand, and on the other hand, the contact area between the third adhesive layer and the heat shielding layer can be increased, so that the bonding strength between the third adhesive layer and the heat shielding layer is improved.
The utility model has the advantages that: (1) the alloy aluminum foil layer has the functions of barrier property, strength support, stamping and stretching resistance, good extensibility, extremely high strength and the like, and in addition, compared with a pure aluminum foil, the alloy aluminum foil layer reduces the production cost and improves the production economy; (2) the design of the S-shaped groove and the sawtooth groove can increase the contact area between the bonding layer and the thermal forming resin layer and between the bonding layer and the thermal shielding layer, and the thickness of the extruded PVDC resin is adjusted to meet the requirements of high barrier films with different barrier property levels and heat sealing performance; (3) the heat shielding layer is a carbon nanotube film modified by hollow glass beads, the hollow glass beads have the characteristics of light powder, low heat conduction, no toxicity, chemical stability, high dispersibility and the like, the hollow glass beads fill up the tiny pore diameter in the carbon nanotubes, the heat insulation effect of the film can be greatly improved, the heat shrinkage rate of the film material can be reduced, and the prepared film is stable in size, smooth in texture and not easy to wrinkle.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic structural view of a multilayer co-extrusion high-barrier blister package hard sheet of the present invention;
FIG. 2 is a schematic structural view of a multilayer co-extruded high-barrier blister package rigid sheet of example 2;
FIG. 3 is a schematic structural view of a multilayer co-extruded high-barrier blister package rigid sheet of comparative example 1;
FIG. 4 is a schematic structural view of a multilayer coextruded high barrier blister package rigid sheet of comparative example 2;
in the figure: (1) -a thermo-formable resin layer, (2) -a first adhesive layer, (3) -a high barrier layer, (4) -a second adhesive layer, (5) -a surface heat seal layer, (6) -a third adhesive layer, (7) -a heat shield layer.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
As shown in fig. 1, the present application discloses an embodiment of a multilayer co-extruded high-barrier blister packaging hard sheet, which comprises a thermo-forming resin layer 1, a first adhesive layer 2, a high-barrier layer 3, a second adhesive layer 4, a surface heat-sealing layer 5, a third adhesive layer 6, and a heat-shielding layer 7 sequentially arranged from outside to inside.
Wherein the thermoforming resin layer is a 1 biaxially oriented nylon film, the biaxially oriented nylon film has a thickness of 10 μm, the high barrier layer 3 is an alloy aluminum foil layer, the alloy aluminum foil layer has a thickness of 30 μm, a pattern is provided on the alloy aluminum foil layer, the surface heat-seal layer 5 is a chlorotrifluoroethylene layer, the chlorotrifluoroethylene film has a thickness of 70 μm, the first bonding layer 2 is a maleic anhydride modified polyurethane resin, the second bonding layer 4 is an EMA modified polyurethane resin, the third bonding layer 6 is a GMA modified polyurethane resin, the first bonding layer 2 has a thickness of 15 μm, the second bonding layer 4 has a thickness of 16 μm, the third bonding layer 6 has a thickness of 15 μm, a wavy groove is provided between the first bonding layer 2 and the thermoforming resin layer 1, the upper and lower surfaces of the second bonding layer 4 are both abrasive surfaces modified by inorganic nanoparticles, the heat-shielding layer 7 is a hollow glass bead-modified carbon nanotube film, the thickness of the carbon nanotube film modified by the hollow glass beads is 10 μm, and a sawtooth-shaped groove is formed between the third adhesive layer 6 and the heat shielding layer 7.
As shown in fig. 2, the present application discloses another embodiment of a multilayer co-extruded high-barrier blister packaging hard sheet, which comprises a thermo-forming resin layer 1, a first adhesive layer 2, a high-barrier layer 3, a second adhesive layer 4, a surface heat-sealing layer 5, a third adhesive layer 6, and a heat-shielding layer 7 in sequence from outside to inside.
Wherein the thermoforming resin layer is a 1 biaxially oriented polyester film, the biaxially oriented polyester film has a thickness of 15 μm, the high barrier layer 3 is an alloy aluminum foil layer, the alloy aluminum foil layer has a thickness of 30 μm, a pattern is disposed on the alloy aluminum foil layer, the surface heat-seal layer 5 is a corona-treated Chlorotrifluoroethylene (CTFE) layer, the CTFE film has a thickness of 70 μm, the first adhesive layer 2 is a maleic anhydride modified polyurethane resin, the second adhesive layer 4 is an EMAA modified polyurethane resin, the third adhesive layer 6 is a GMA modified polyurethane resin, the first adhesive layer 2, the second adhesive layer 4 and the third adhesive layer 6 have a thickness of 20 μm, a wave-shaped groove (not shown in the figure) is disposed between the first adhesive layer 2 and the thermoforming resin layer 1, the upper and lower surfaces of the second adhesive layer 4 are both provided with a frosted surface modified by inorganic nanoparticles, the heat-shield layer 7 is a carbon nanotube film modified by hollow glass beads, the thickness of the carbon nanotube film modified by the hollow glass beads is 10 μm, and a zigzag groove (not shown) is formed between the third adhesive layer 6 and the heat shielding layer 7.
Comparative example 1
As shown in fig. 3, the present application discloses a multilayer co-extruded high-barrier blister packaging hard sheet of a comparative example, which is provided with a thermo-forming resin layer 1, a first adhesive layer 2, a high-barrier layer 3, a second adhesive layer 4, a surface heat-seal layer 5, and a third adhesive layer 6 in sequence from outside to inside.
Wherein the thermal forming resin layer 1 is a bidirectional stretching nylon film, the thickness of the bidirectional stretching nylon film is 10 μm, the high barrier layer 3 is an alloy aluminum foil layer, the thickness of the alloy aluminum foil layer is 30 μm, set up the pattern on the alloy aluminium foil layer, surface heat-seal layer 5 is the vinylidene chloride layer, the thickness of vinylidene chloride membrane is 70 μm, first bonding layer 2 is maleic anhydride modified polyurethane resin, second bonding layer 4 is EMAA modified polyurethane resin, third bonding layer 6 is GMA modified polyurethane resin, first bonding layer 2, second bonding layer 4, the thickness of third bonding layer 6 is 20 μm, establish wave type recess between first bonding layer 2 and the thermoforming resin layer 1, the upper and lower surface of second bonding layer 4 all establishes the dull polish face that inorganic nanoparticle was decorated, the thickness of the carbon nanotube membrane of hollow glass bead decoration is 10 μm.
Comparative example 2
As shown in fig. 4, the present application discloses another embodiment of a multilayer co-extruded high-barrier blister packaging hard sheet, which is provided with a thermo-forming resin layer 1, a first adhesive layer 2, a surface heat-sealing layer 3, a second adhesive layer 4, and a heat-shielding layer 5 in sequence from outside to inside.
Wherein, the thermoforming resin layer is 1 biaxial stretching nylon film, the thickness of biaxial stretching nylon film is 10 μm, surface heat-seal layer 3 is the vinylidene chloride layer, the thickness of vinylidene chloride film is 70 μm, first bonding layer 2 is maleic anhydride modified polyurethane resin, second bonding layer 4 is EMA modified polyurethane resin, the thickness of first bonding layer 2 is 15 μm, the thickness of second bonding layer 4 is 16 μm, establish wave type recess between first bonding layer 2 and the thermoforming resin layer 1, the upper and lower surface of second bonding layer 4 all establishes the frosting face that inorganic nanoparticle decorated, heat-shield layer 5 is the carbon nanotube film that hollow glass bead decorated, the thickness of the carbon nanotube film that hollow glass bead decorated is 10 μm.
The properties of the products of examples 1-2 and comparative examples 1-2 above are shown in the following table, with the following results of the property tests:
example 1 compared with comparative example 1, the tensile strength of the composite film is increased from 17.28 to 28.79, and the elongation at break is increased from 40.17 to 56.47, which shows that the thermal barrier layer can improve the tensile strength and elongation at break of the composite film, and reduce the phenomenon that the tensile uniformity is poor at different positions or the film is too thin when being partially thermoformed, thereby improving the tensile uniformity of the whole film, and enabling the prepared film to have stable size, smooth texture and difficult wrinkling.
Example 1 compared with comparative example 2, the water vapor transmission amount was reduced from 2.8 to 0.4, and the oxygen transmission rate was reduced from 75 to 37, which indicates that the alloy aluminum foil layer can improve the barrier property of the composite film, and in addition, the alloy aluminum foil layer reduces the production cost and improves the production economy compared with the pure aluminum foil.
Although the embodiments of the present invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, but it can be fully applied to various fields suitable for the present invention, and further modifications can be easily implemented by those skilled in the art. Therefore, the invention is not to be limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.
Claims (10)
1. The utility model provides a multilayer is crowded hard piece of high separation blister package altogether, its characterized in that is equipped with thermoforming resin layer, first adhesion layer, high separation layer, second adhesion layer, surface heat-seal layer, third adhesion layer, heat shield layer from outside to inside in proper order.
2. The multilayer co-extrusion high-barrier blister packaging hard sheet as claimed in claim 1, wherein the thermoforming resin layer is one of a biaxially oriented nylon film, a biaxially oriented polyester film and a biaxially oriented polypropylene film, and the thickness of the thermoforming resin layer is 10-25 μm.
3. The multilayer co-extruded high barrier blister pack rigid sheet according to claim 1, wherein the high barrier layer is an alloy aluminum foil layer having a thickness of 30-45 μm.
4. The multilayer co-extruded high barrier blister pack rigid sheet as claimed in claim 3, wherein the alloy aluminum foil layer is provided with a pattern.
5. The multilayer co-extruded high barrier blister pack rigid sheet according to claim 1, wherein the surface heat seal layer is a layer of vinylidene fluoride and the thickness of the vinylidene fluoride film is 70-120 μm.
6. The multilayer co-extruded high-barrier blister pack rigid sheet according to claim 1, wherein the first adhesive layer, the second adhesive layer and the third adhesive layer are polyurethane resin modified by one of EMA, EMAA, EVA, maleic anhydride and GMA, and the thickness of each of the first adhesive layer, the second adhesive layer and the third adhesive layer is 15-25 μm.
7. The multilayer co-extruded high barrier blister pack rigid sheet according to claim 1, wherein a wave-shaped groove is provided between the first adhesive layer and the thermo-formed resin layer.
8. The multilayer co-extruded high barrier blister pack rigid sheet as claimed in claim 1, wherein the upper and lower surfaces of the second adhesive layer are both provided with frosted surfaces modified by inorganic nanoparticles.
9. The multilayer co-extruded high barrier blister pack rigid sheet as claimed in claim 1, wherein the heat shield layer is a hollow glass bead-modified carbon nanotube film having a thickness of 10-18 μm.
10. The multilayer co-extruded high barrier blister pack rigid sheet as claimed in claim 1, wherein a serrated groove is provided between the third adhesive layer and the heat shield layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921736803.8U CN211591634U (en) | 2019-10-16 | 2019-10-16 | Multilayer co-extrusion high-barrier blister packaging hard sheet |
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| CN201921736803.8U CN211591634U (en) | 2019-10-16 | 2019-10-16 | Multilayer co-extrusion high-barrier blister packaging hard sheet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112519359A (en) * | 2020-11-05 | 2021-03-19 | 江西春光新材料科技股份有限公司 | High-barrier composite hard sheet and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112519359A (en) * | 2020-11-05 | 2021-03-19 | 江西春光新材料科技股份有限公司 | High-barrier composite hard sheet and preparation method thereof |
| CN112519359B (en) * | 2020-11-05 | 2023-02-03 | 江西春光新材料科技股份有限公司 | High-barrier composite hard sheet and preparation method thereof |
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