A biodegradable cosmetic tube

Abstract

This utility model discloses a biodegradable cosmetic tube, comprising a bio-based polymer material tube body, a tube cap, a nozzle, an inner layer structure, and an outer layer structure: One end of the bio-based polymer material tube body is provided with a nozzle, and the nozzle is threadedly connected to the tube cap; the outer wall of the bio-based polymer material tube body is provided with an outer layer structure, and the inner wall of the bio-based polymer material tube body is provided with an inner layer structure. This utility model effectively prevents the contents from permeating outward through an anti-permeability membrane layer, keeping the outer wall of the tube clean and tidy; an anti-corrosion coating provides excellent chemical stability, preventing chemical reactions between the contents and the inner wall of the tube; a fragrance-locking layer uses a special coating material to firmly lock in the volatile fragrance components in the cosmetic, extending the fragrance retention time; and an antibacterial and anti-mold layer inhibits the growth of bacteria and mold, ensuring the hygiene and safety of the cosmetic.

Description

Technical Field

[0001] This utility model relates to the field of cosmetic packaging, and in particular to a biodegradable cosmetic tube. Background Technology

[0002] Cosmetic tubes are a common type of packaging container, primarily used for storing and dispensing creams, gels, or lotions. Their main characteristics are softness, ease of squeezing, and good sealing properties, making them widely used in the packaging of skincare products, facial cleansers, and other similar products.

[0003] In the existing technology, the inner wall design of cosmetic tubes is limited to physical separation and lacks targeted and diversified functional coatings, making it difficult to meet the special storage environment requirements of different cosmetics.

[0004] It should be noted that the above content falls within the scope of the technical knowledge of the utility model owner and does not necessarily constitute prior art. Utility Model Content

[0005] To address the aforementioned problems, the purpose of this invention is to provide a biodegradable cosmetic tube.

[0006] To achieve the above objectives, this utility model proposes a biodegradable cosmetic tube, comprising a bio-based polymer material tube body, a tube cap, a tube opening, an inner layer structure, and an outer layer structure:

[0007] One end of the bio-based polymer material hose body is provided with a hose opening, and a hose cap is threadedly connected to the hose opening;

[0008] The outer wall of the bio-based polymeric material hose body is provided with an outer layer structure, and the inner wall of the bio-based polymeric material hose body is provided with an inner layer structure.

[0009] The inner structure consists of an impermeable membrane layer, an anti-corrosion coating, a fragrance-locking layer, an antibacterial and anti-mildew layer, and a moisturizing coating. The inner wall of the impermeable membrane layer is bonded to the anti-corrosion coating, the inner wall of the anti-corrosion coating is bonded to the fragrance-locking layer, the inner wall of the fragrance-locking layer is bonded to the antibacterial and anti-mildew layer, and the inner wall of the antibacterial and anti-mildew layer is bonded to the moisturizing coating.

[0010] In one example, the outer structure consists of a thermochromic coating and an ultraviolet-shielding layer.

[0011] In one example, the bottom of the outer wall of the bio-based polymeric material hose body is provided with an erasable marking layer.

[0012] In one example, a porous support layer is provided between the impermeable membrane layer and the anti-corrosion coating.

[0013] In one example, micro-ventilation pores are provided between the antibacterial and antifungal layer and the moisturizing coating.

[0014] In one example, the outer wall of the pipe is provided with a one-way vent.

[0015] The biodegradable cosmetic tube proposed in this utility model can bring the following beneficial effects:

[0016] This invention effectively prevents the contents from seeping out through an anti-permeability membrane layer, keeping the outer wall of the tube clean and tidy. An anti-corrosion coating provides excellent chemical stability, preventing chemical reactions between the contents and the inner wall of the tube. A fragrance-locking layer, using a special coating material, firmly locks in volatile fragrance components in the cosmetic, extending the fragrance retention time. An antibacterial and anti-mold layer inhibits the growth of bacteria and mold, ensuring the hygiene and safety of the cosmetic. A moisturizing coating reduces the rate of moisture evaporation from the contents, maintaining the cosmetic in its optimal condition. A porous support layer between the anti-permeability membrane layer and the anti-corrosion coating improves the mechanical stability and pressure resistance of the inner layer, preventing the inner wall coating from peeling off or deforming due to external pressure. Micro-ventilation holes between the antibacterial and anti-mold layer and the moisturizing coating balance gas exchange inside and outside the tube, preventing deformation caused by pressure differences and ensuring the long-term storage quality of the contents. Depending on the characteristics of different cosmetics, the various inner coatings can work independently or collaboratively, effectively addressing various storage challenges, such as anti-oxidation, moisturizing, and anti-contamination. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the bio-based polymer material hose body of this utility model;

[0020] Figure 3 This is a schematic diagram of the inner layer structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the outer layer structure of this utility model.

[0022] In the diagram: 1. Bio-based polymer material hose body; 2. Hose cap; 3. Hose opening; 4. Inner layer structure; 5. Outer layer structure; 6. Anti-permeability membrane layer; 7. Anti-corrosion coating; 8. Fragrance-locking layer; 9. Temperature-sensitive color-changing coating; 10. Antibacterial and anti-mildew layer; 11. Moisturizing coating; 12. Ultraviolet isolation layer; 13. Erasable marking layer; 14. Porous support layer; 15. Micro-ventilation holes; 16. One-way exhaust hole. Detailed Implementation

[0023] To more clearly illustrate the overall concept of this utility model, a detailed description is provided below with reference to the accompanying drawings.

[0024] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "a solution," "some solutions," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that solution or example is included in at least one solution or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same solution or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more solutions or examples.

[0028] like Figures 1-4As shown, an embodiment of this utility model proposes a biodegradable cosmetic tube, comprising a bio-based polymer material tube body 1, a tube cap 2, a tube opening 3, an inner layer structure 4, and an outer layer structure 5.

[0029] One end of the bio-based polymer material hose body 1 is provided with a hose opening 3, and a hose cap 2 is threadedly connected to the hose opening 3;

[0030] The outer wall of the bio-based polymeric material hose body 1 is provided with an outer layer structure 5, and the inner wall of the bio-based polymeric material hose body 1 is provided with an inner layer structure 4.

[0031] The inner structure 4 is composed of an anti-permeability membrane layer 6, an anti-corrosion coating 7, a fragrance locking layer 8, an antibacterial and anti-mildew layer 10, and a moisturizing coating 11. The inner wall of the anti-permeability membrane layer 6 is bonded to the anti-corrosion coating 7, the inner wall of the anti-corrosion coating 7 is bonded to the fragrance locking layer 8, the inner wall of the fragrance locking layer 8 is bonded to the antibacterial and anti-mildew layer 10, and the inner wall of the antibacterial and anti-mildew layer 10 is bonded to the moisturizing coating 11.

[0032] Specifically, the outer structure 5 consists of a thermochromic coating 9 and an ultraviolet blocking layer 12.

[0033] Specifically, an erasable marking layer 13 is provided at the bottom of the outer wall of the bio-based polymer material hose body 1.

[0034] Specifically, a porous support layer 14 is provided between the anti-permeability membrane layer 6 and the anti-corrosion coating layer 7.

[0035] Specifically, micro-ventilation holes 15 are provided between the antibacterial and antifungal layer 10 and the moisturizing coating 11.

[0036] Specifically, the outer wall of the pipe 3 is provided with a one-way exhaust hole 16.

[0037] Impermeable membrane layer 6: Made of polyvinylidene chloride (PVDC); Corrosion-resistant coating 7: Epoxy resin or fluoropolymer (such as PTFE); Fragrance-locking layer 8: Microporous silica gel coating or modified polyamide; Antibacterial and antifungal layer 10: Antibacterial polymer containing nano-silver or zinc ions; Moisturizing coating 11: Sodium polyacrylate (SAP); Thermochromic coating 9: Thermosensitive color-changing material (such as polymer coating containing thermosensitive liquid crystal microcapsules); UV-blocking layer 12: Polymer coating with added UV absorbers (such as titanium dioxide or zinc oxide).

[0038] Working principle:

[0039] Cosmetics are injected into the inner cavity of the bio-based polymer material soft tube body 1 through the production equipment via the nozzle 3. The impermeable membrane layer 6 of the inner structure 4 acts as the first barrier to prevent the contents from leaking out. The anti-corrosion coating 7 provides chemical protection for the cosmetic ingredients, ensuring that the cosmetic does not react with the material of the inner wall of the tube, thereby ensuring the stability of the contents. During the injection process, the one-way vent 16 on the outer wall of the nozzle 3 releases excess gas from the tube, avoiding uneven internal pressure caused by residual gas during filling. After injection, the tube cap 2 is tightly fitted to the nozzle 3 via a threaded connection to achieve a sealed state of the tube and prevent leakage of the contents. During storage and transportation, the inner structure 4 and the outer structure 5 of the bio-based polymer material soft tube body 1 work together to provide protection: the impermeable membrane layer 6 and the anti-corrosion coating 7 prevent leakage and chemical erosion of the contents; the fragrance locking layer 8 firmly locks in the fragrance components in the cosmetic to prevent fragrance evaporation; and the antibacterial and anti-mold layer 10 inhibits the growth of bacteria and mold, ensuring the hygiene of the cosmetic. The moisturizing coating 11 reduces the evaporation of moisture from the contents, maintaining suitable humidity. The temperature-sensitive color-changing coating 9 of the outer structure 5 displays different colors according to changes in ambient temperature, providing users with an indication of whether the contents are at the optimal storage temperature. The UV isolation layer 12 effectively blocks ultraviolet rays from entering the tube, preventing cosmetics from oxidizing or deteriorating due to light exposure. Users unscrew the tube cap 2 and squeeze the bio-based polymer material tube body 1 to expel the contents from the tube opening 3. During the squeezing process, the micro-vents 15 of the inner structure 4 balance the air pressure inside and outside the tube, preventing the tube from deforming or flattening due to the expulsion of the contents. The erasable marking layer 13 on the bottom of the outer wall of the bio-based polymer material tube body 1 provides users with the convenience of recording and labeling, such as the usage date and batch information of the contents. The marking information can be erased and updated at any time. After use, the bio-based polymer material tube body 1, tube cap 2, and other components are all made of biodegradable materials, which can decompose into harmless substances under certain conditions, effectively reducing environmental pollution and achieving green environmental protection.

[0040] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0041] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A biodegradable cosmetic tube, comprising a bio-based polymeric material tube body (1), a tube cap (2), a tube opening (3), an inner layer structure (4), and an outer layer structure (5): One end of the bio-based polymer material hose body (1) is provided with a hose opening (3), and the hose opening (3) is threadedly connected to a hose cap (2); characterized in that The outer wall of the bio-based polymeric material hose body (1) is provided with an outer layer structure (5), and the inner wall of the bio-based polymeric material hose body (1) is provided with an inner layer structure (4): The inner structure (4) consists of an anti-permeability membrane layer (6), an anti-corrosion coating (7), a fragrance locking layer (8), an antibacterial and anti-mildew layer (10), and a moisturizing coating (11). The inner wall of the anti-permeability membrane layer (6) is bonded to the anti-corrosion coating (7), the inner wall of the anti-corrosion coating (7) is bonded to the fragrance locking layer (8), the inner wall of the fragrance locking layer (8) is bonded to the antibacterial and anti-mildew layer (10), and the inner wall of the antibacterial and anti-mildew layer (10) is bonded to the moisturizing coating (11).

2. The biodegradable cosmetic tube according to claim 1, characterized in that: The outer structure (5) consists of a thermochromic coating (9) and an ultraviolet shielding layer (12).

3. The biodegradable cosmetic tube according to claim 1, characterized in that: The bottom of the outer wall of the bio-based polymer material hose body (1) is provided with an erasable marking layer (13).

4. The biodegradable cosmetic tube according to claim 1, characterized in that: A porous support layer (14) is provided between the anti-permeability membrane layer (6) and the anti-corrosion coating (7).

5. The biodegradable cosmetic tube according to claim 1, characterized in that: Micro-ventilation pores (15) are provided between the antibacterial and antifungal layer (10) and the moisturizing coating (11).

6. The biodegradable cosmetic tube according to claim 1, characterized in that: The outer wall of the pipe opening (3) is provided with a one-way exhaust hole (16).

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