A green and easily degradable pharmaceutical packaging composite film

Abstract

This utility model discloses a green and easily degradable pharmaceutical packaging composite film, relating to the field of composite film packaging technology. It includes a film body with a protective layer fixedly connected to its top end and a degradation layer fixedly connected to the bottom end of the protective layer. This green and easily degradable pharmaceutical packaging composite film comprises a photosensitizer layer, a first PLA layer, and starch. During use, the PE layer provides basic mechanical strength, while a photosensitizer layer is coated on the top surface of the PE layer. Under light irradiation, the photosensitizer layer induces polymer chain breakage, accelerating degradation. Simultaneously, the complete biodegradability of the bottom first PLA layer and the microbial degradability of its internal starch allow the blending of the first PLA layer and starch to improve the overall degradation rate while maintaining overall flexibility and strength. Microencapsulation technology is used to embed a peroxide layer into a second PLA layer, allowing the second PLA layer and peroxide layer to be blended. This utilizes oxidation reactions to accelerate degradation, solving the problem of devices being unable to degrade.

Description

Technical Field

[0001] This utility model relates to the field of composite film packaging technology, specifically to a green and easily degradable pharmaceutical packaging composite film. Background Technology

[0002] Composite film packaging technology mainly involves bonding films of different properties together in a specific way to provide better protection and functionality. This technology is widely used in many fields such as food, medicine, and daily chemicals. In the pharmaceutical packaging field, composite films can provide high-strength protection to ensure the safety of medicines during transportation and storage. However, traditional pharmaceutical composite films mostly use non-degradable plastics such as polyethylene and polypropylene, which are difficult to decompose naturally after being discarded. Long-term accumulation will cause soil and water pollution, forming white pollution. Therefore, it is necessary to research and develop biodegradable packaging composite films to enable resource recycling.

[0003] Now, a novel green and biodegradable pharmaceutical packaging composite film is proposed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a green and easily degradable pharmaceutical packaging composite film to solve the problem of non-degradability mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a green and easily degradable pharmaceutical packaging composite film, comprising a film body, a protective layer fixedly connected to the top of the film body, a degradation layer fixedly connected to the bottom of the protective layer, and a degradation-facilitating component fixedly connected inside the degradation layer.

[0006] The degradable component includes a photosensitizer layer, which is fixedly connected to the interior of the degradation layer. A PE layer is fixedly connected to the bottom end of the photosensitizer layer, and a first PLA layer is fixedly connected to the bottom end of the PE layer. Multiple starch layers are fixedly connected inside the first PLA layer, and a second PLA layer is fixedly connected to the bottom end of the first PLA layer. Multiple peroxide layers are fixedly connected inside the second PLA layer.

[0007] As a further technical solution of this utility model, the degradation layer is fixedly connected to the PE layer, and the first PLA layer is fixedly connected to the degradation layer.

[0008] As a further technical solution of this utility model, the second PLA layer is fixedly connected to the degradation layer, and the peroxide layers are arranged at equal intervals.

[0009] As a further technical solution of this utility model, the starch is arranged at equal intervals, and the degradation layer is connected to the membrane and the PVA layer.

[0010] As a further technical solution of this utility model, a PVA layer is fixedly connected to the bottom end of the degradation layer, tea polyphenols are fixedly connected inside the PVA layer, chitosan is fixedly connected to the bottom end of the tea polyphenols, titanium dioxide is fixedly connected to the bottom end of the chitosan, multiple sets of nano-silver are fixedly connected inside the titanium dioxide, and a nano-ceramic coating is fixedly connected to the bottom end of the titanium dioxide.

[0011] As a further technical solution of this utility model, the chitosan is fixedly connected to the PVA layer, the titanium dioxide is fixedly connected to the PVA layer, the nano-silver is arranged at equal intervals, and the second PLA layer is connected to the tea polyphenols.

[0012] As a further technical solution of this utility model, a BOPP film is fixedly connected inside the protective layer, and a polyester film is fixedly connected to the bottom end of the BOPP film.

[0013] As a further technical solution of this utility model, the polyester film is fixedly connected to the protective layer, and the photosensitizer layer is connected to the polyester film.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the green and easily degradable pharmaceutical packaging composite film not only achieves the function of degradability, but also achieves the function of multi-layer antibacterial and protective functions;

[0015] (1) By setting a photosensitizer layer, a first PLA layer and starch, when in use, the PE layer provides basic mechanical strength, and at the same time, a photosensitizer layer is coated on the top surface of the PE layer. The photosensitizer layer induces polymer chain breakage under light to accelerate degradation. At the same time, the complete biodegradability of the bottom first PLA layer and the microbial degradability of the starch inside it can improve the overall degradation rate by blending the first PLA layer and starch, while maintaining the overall flexibility and strength. The peroxide layer is embedded in the second PLA layer by microencapsulation technology to blend the second PLA layer and the peroxide layer. The oxidation reaction can be used to accelerate degradation. Triple degradation prevents material pollution and realizes the degradable function.

[0016] (2) By incorporating tea polyphenols and chitosan, the PVA layer enhances water solubility and barrier properties during use, protecting the medicine from microorganisms and moisture. Meanwhile, the tea polyphenols and chitosan inside are natural antibacterial agents, providing antibacterial properties. Titanium dioxide is blended with the internal nano-silver to prepare a composite material with both photocatalytic antibacterial and silver antibacterial effects, enabling it to kill bacteria more effectively under light conditions and improve antibacterial performance. Finally, a nano-ceramic coating is bonded to the bottom to prevent the tablet from sticking to the bottom of the membrane, making it convenient for users to remove and protecting the integrity of the medicine, thus achieving multi-layer antibacterial function.

[0017] (3) By setting BOPP film and polyester film, when in use, BOPP film has excellent transparency, heat resistance and barrier properties, and provides protection on the outside. Polyester film has excellent mechanical strength, rigidity, heat resistance and high density, while having excellent transparency and gloss. It has low water vapor and oxygen permeability and good odor retention, thus achieving the protection function. Attached Figure Description

[0018] Figure 1 This is a front view cross-sectional structural diagram of the present invention;

[0019] Figure 2 This is an enlarged cross-sectional view of the first PLA layer of this utility model.

[0020] Figure 3 This is an enlarged front cross-sectional view of the second PLA layer of this utility model;

[0021] Figure 4 This is a magnified cross-sectional view of the titanium dioxide structure of this utility model.

[0022] In the diagram: 1. Membrane; 2. Protective layer; 3. Degradation layer; 4. Photosensitizer layer; 5. PE layer; 6. First PLA layer; 7. Starch; 8. Second PLA layer; 9. Peroxide layer; 10. PVA layer; 11. Tea polyphenols; 12. Chitosan; 13. Titanium dioxide; 14. Nano silver; 15. Nano ceramic coating; 16. BOPP film; 17. Polyester film. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 The present invention provides an embodiment of a green biodegradable pharmaceutical packaging composite film, comprising a film body 1, a protective layer 2 fixedly connected to the top end of the film body 1, a degradation layer 3 fixedly connected to the bottom end of the protective layer 2, and a degradation-facilitating component fixedly connected inside the degradation layer 3.

[0025] Please see Figure 1-4A green and easily degradable pharmaceutical packaging composite film also includes a degradation-facilitating component, which includes a photosensitizer layer 4, which is fixedly connected to the interior of the degradation layer 3. A PE layer 5 is fixedly connected to the bottom end of the photosensitizer layer 4, a first PLA layer 6 is fixedly connected to the bottom end of the PE layer 5, multiple groups of starch 7 are fixedly connected inside the first PLA layer 6, a second PLA layer 8 is fixedly connected to the bottom end of the first PLA layer 6, and multiple groups of peroxide layers 9 are fixedly connected inside the second PLA layer 8. The degradation layer 3 is fixedly connected to the PE layer 5, the first PLA layer 6 is fixedly connected to the degradation layer 3, the second PLA layer 8 is fixedly connected to the degradation layer 3, the peroxide layers 9 are arranged at equal intervals, the starch 7 are arranged at equal intervals, and the degradation layer 3 is connected to the film body 1 and the PVA layer 10. The multi-layer structure accelerates degradation.

[0026] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, during use, the PE layer 5 provides basic mechanical strength, while a photosensitizer layer 4 is coated on the top surface of the PE layer 5. The photosensitizer layer 4 induces polymer chain breakage under light, accelerating degradation. At the same time, the complete biodegradability of the bottom first PLA layer 6 and the microbial degradability of the starch 7 inside it can improve the overall degradation rate by blending the first PLA layer 6 and starch 7, while maintaining the overall flexibility and strength. The peroxide layer 9 is embedded in the second PLA layer 8 using microencapsulation technology, so that the second PLA layer 8 and the peroxide layer 9 are blended. The oxidation reaction can be used to accelerate degradation. This triple degradation prevents material contamination and promotes progressive degradation layer by layer.

[0027] A PVA layer 10 is fixedly connected to the bottom of the degradation layer 3. Tea polyphenols 11 are fixedly connected inside the PVA layer 10. Chitosan 12 is fixedly connected to the bottom of the tea polyphenols 11. Titanium dioxide 13 is fixedly connected to the bottom of the chitosan 12. Multiple sets of nano silver 14 are fixedly connected inside the titanium dioxide 13. A nano ceramic coating 15 is fixedly connected to the bottom of the titanium dioxide 13. Chitosan 12 is fixedly connected to the PVA layer 10. Titanium dioxide 13 is fixedly connected to the PVA layer 10. The nano silver 14 are arranged at equal intervals. The second PLA layer 8 is connected to the tea polyphenols 11 to enhance the antibacterial ability.

[0028] Specifically, such as Figure 1 and Figure 4As shown, during use, the PVA layer 10 enhances water solubility and barrier properties, protecting the medicine from microorganisms and moisture. Meanwhile, the tea polyphenols 11 and chitosan 12 inside are natural antibacterial agents, providing antibacterial properties. The titanium dioxide 13 is blended with the internal nano silver 14 to prepare a composite material with both photocatalytic antibacterial and silver antibacterial effects, enabling it to kill bacteria more effectively under light conditions and improve antibacterial performance. Finally, a nano-ceramic coating 15 is bonded to the bottom to prevent the tablet from sticking to the bottom of the membrane 1, making it easy for the user to remove, protecting the integrity of the medicine, and enhancing antibacterial properties.

[0029] A BOPP film 16 is fixedly connected inside the protective layer 2. A polyester film 17 is fixedly connected to the bottom end of the BOPP film 16. The polyester film 17 is fixedly connected to the protective layer 2. The photosensitizer layer 4 is connected to the polyester film 17 to enhance toughness.

[0030] Specifically, such as Figure 1 As shown, when in use, BOPP film 16 has excellent transparency, heat resistance and barrier properties, providing protection on the outside, while polyester film 17 has excellent mechanical strength, rigidity, heat resistance and high density, as well as excellent transparency and gloss, low water vapor and oxygen permeability, good flavor retention, and protection of the internal medicine.

[0031] Working Principle: In use, this invention firstly provides basic mechanical strength through the PE layer 5. Simultaneously, a photosensitizer layer 4 is coated on the top surface of the PE layer 5. Under light irradiation, the photosensitizer layer 4 induces polymer chain breakage, accelerating degradation. Simultaneously, the complete biodegradability of the bottom first PLA layer 6 and the microbial degradability of its internal starch 7 allow for blending of the first PLA layer 6 and starch 7, improving the overall degradation rate while maintaining overall flexibility and strength. Microencapsulation technology is used to embed the peroxide layer 9 into the second PLA layer 8, allowing for blending of the second PLA layer 8 and the peroxide layer 9. This allows for accelerated degradation through oxidation, resulting in triple degradation and preventing material contamination. During use, the PVA layer 10 enhances water solubility and barrier properties, protecting pharmaceuticals from contamination. Microorganisms and moisture affect the product. Meanwhile, the internal tea polyphenols 11 and chitosan 12 are natural antibacterial agents, providing antibacterial properties. Titanium dioxide 13 is blended with internal nano-silver 14 to prepare a composite material with both photocatalytic antibacterial and silver antibacterial effects. This allows it to more effectively kill bacteria under light conditions, improving antibacterial performance. Finally, a nano-ceramic coating 15 is bonded to the bottom to prevent the tablet from sticking to the bottom of the film 1, facilitating user removal and protecting the integrity of the medicine. During use, the BOPP film 16, with its excellent transparency, heat resistance, and barrier properties, provides external protection. The polyester film 17 possesses excellent mechanical strength, rigidity, heat resistance, and high density, while also exhibiting excellent transparency and gloss, low water vapor and oxygen permeability, and good flavor retention.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A green, readily degradable, medicinal packaging composite film comprising a film body (1), characterized in that: The top end of the film body (1) is fixedly connected with a protective layer (2), the bottom end of the protective layer (2) is fixedly connected with a degradation layer (3), and the inside of the degradation layer (3) is fixedly connected with a degradation facilitating assembly; The degradation facilitating assembly comprises a photosensitizer layer (4) fixedly connected to the inside of the degradation layer (3), the bottom end of the photosensitizer layer (4) is fixedly connected with a PE layer (5), the bottom end of the PE layer (5) is fixedly connected with a first PLA layer (6), the inside of the first PLA layer (6) is fixedly connected with a plurality of starches (7), the bottom end of the first PLA layer (6) is fixedly connected with a second PLA layer (8), and the inside of the second PLA layer (8) is fixedly connected with a plurality of peroxide layers (9).

2. A green, easily degradable, pharmaceutical packaging composite film according to claim 1, characterized by: The degradation layer (3) is fixedly connected with the PE layer (5), and the first PLA layer (6) is fixedly connected with the degradation layer (3).

3. A green, easily degradable, pharmaceutical packaging composite film according to claim 1, characterized by: The second PLA layer (8) is fixedly connected with the degradation layer (3), and the peroxide layers (9) are arranged at equal intervals.

4. A green, easily degradable, pharmaceutical packaging composite film according to claim 1, characterized by: The starches (7) are arranged at equal intervals, and the degradation layer (3) is connected with the film body (1) and the PVA layer (10).

5. A green, easily degradable, pharmaceutical packaging composite film according to claim 1, characterized by: The bottom end of the degradation layer (3) is fixedly connected with a PVA layer (10), the inside of the PVA layer (10) is fixedly connected with tea polyphenol (11), the bottom end of the tea polyphenol (11) is fixedly connected with chitosan (12), the bottom end of the chitosan (12) is fixedly connected with titanium dioxide (13), the inside of the titanium dioxide (13) is fixedly connected with a plurality of nano-silver (14), and the bottom end of the titanium dioxide (13) is fixedly connected with a nano-ceramic coating (15).

6. A green, readily degradable, pharmaceutical packaging composite film according to claim 5, characterized by: The chitosan (12) is fixedly connected with the PVA layer (10), the titanium dioxide (13) is fixedly connected with the PVA layer (10), the nano-silver (14) is arranged at equal intervals, and the second PLA layer (8) is connected with the tea polyphenol (11).

7. A green, easily degradable, pharmaceutical packaging composite film according to claim 1, characterized by: The inside of the protective layer (2) is fixedly connected with a BOPP film (16), and the bottom end of the BOPP film (16) is fixedly connected with a polyester film (17).

8. A green, readily degradable, pharmaceutical packaging composite film according to claim 7, characterized by: The polyester film (17) is fixedly connected with the protective layer (2), and the photosensitizer layer (4) is connected with the polyester film (17). The inside of the protective layer (2) is fixedly connected with a BOPP film (16), and the bottom end of the BOPP film (16) is fixedly connected with a polyester film (17).

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