Degradable underwear sponge

Abstract

The invention relates to the technical field of underwear sponges, in particular to a degradable underwear sponge which is characterized in that natural fibers are adopted as base materials and mixed with bio-based polymers, natural rubber or seaweed extracts, plasticizers, antibacterial materials and auxiliaries, the antibacterial materials comprise tea tree oil, and the tea tree oil is subjected to nano packaging, so that the growth of bacteria can be prevented, and the antibacterial performance of the underwear sponge is improved. The underwear is kept dry and comfortable, peculiar smell is reduced, a more lasting antibacterial effect is kept, natural fibers are enhanced through a nanotechnology, the strength, elasticity and water resistance of the natural fibers are improved, multiple natural materials and tea tree oil can be combined to form an antibacterial system, the service life of the product is prolonged, and the production cost is reduced. The underwear sponge is good in durability, water resistance and elasticity, has a lasting antibacterial effect, can be degraded in the natural environment after being discarded, and does not pollute the environment.

Description

Technical Field

[0001] The present invention relates to the technical field of underwear sponges, and in particular to a degradable underwear sponge. Background Art

[0002] During the production of ordinary sponge cups, a large amount of thick smoke and chemical odors are generated. These odors may contain toxic and carcinogenic substances, which are harmful to human health. Moreover, after being discarded, they cannot be degraded in the natural environment. After long-term use, they are prone to accumulating dirt and bacteria, affecting the health of users, and are also prone to oxidizing, hardening, turning yellow and deforming, etc.

[0003] Therefore, a more healthy and comfortable-to-use underwear sponge is needed. Summary of the Invention

[0004] In order to solve the above problems, a degradable underwear sponge of the present invention uses natural materials, has higher safety, higher durability, elasticity and supportiveness, also has antibacterial effects and is environmentally degradable, and will not damage the environment.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A degradable underwear sponge uses natural fibers as the base material, and mixes bio-based polymers, natural rubber, seaweed extracts, plasticizers, antibacterial materials and additives. The proportion of the natural fibers is 40%-60%, the bio-based polymer is 20%-30%, the antibacterial material includes tea tree oil, and the tea tree oil is nano-encapsulated, which helps to prevent the growth of bacteria, keep the underwear dry, reduce odors, and maintain a more lasting antibacterial effect. The natural fibers are strengthened by nanotechnology to improve the strength, elasticity and water resistance of the natural fibers.

[0006] Optionally, in an embodiment of the present invention, the natural fibers are strengthened by nanotechnology specifically by processing the natural fibers into nano-scale fibers to enhance the strength, toughness, moisture absorption and air permeability of the fibers.

[0007] Optionally, in an embodiment of the present invention, the nano-encapsulation of the tea tree oil specifically embeds the tea tree oil into the natural fibers through nano-encapsulation technology to extend the antibacterial effect of the tea tree oil.

[0008] Optionally, in an embodiment of the present invention, the additives include fillers, cross-linking agents and deodorants. The filler is wood pulp, the cross-linking agent is citric acid, and the deodorant is any one of bamboo charcoal, tea tree oil or lavender oil.

[0009] Optionally, in an embodiment of the present invention, the antibacterial material further includes honey extract and calendula extract.

[0010] Optionally, in an embodiment of the present invention, the plasticizer is glycerol, and the proportion of the plasticizer is 1%-5%.

[0011] Optionally, in an embodiment of the present invention, the proportion of the natural rubber and the seaweed extract in the total mass is 10%-20%.

[0012] Optionally, in an embodiment of the present invention, the antibacterial material further includes silver ions, and the addition proportion of the silver ions is 0.1%-0.2%.

[0013] Advantages of the present invention A degradable underwear sponge of the present invention mostly uses natural degradable materials as raw materials, which are friendly and harmless to human skin, and can be naturally degraded in the natural environment after being discarded. Compared with traditional sponges, it helps to reduce garbage and environmental pollution. The sponge has good durability, elasticity and support, and the sponge has a lasting antibacterial effect, which can ensure the health of clothing wear. Specific embodiments

[0014] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following will describe the specific embodiments of the present invention in detail with reference to the text. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0015] In order to further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following will describe in detail the specific embodiments, structures, features and their effects according to the present invention with reference to the preferred embodiments. Embodiment

[0016] In order to make the underwear sponge more environmentally friendly, durable and comfortable, a degradable underwear sponge is designed, and the specific scheme is as follows: A degradable underwear sponge uses natural fibers as the base material, and is mixed with bio-based polymers, natural rubber, seaweed extracts, plasticizers, antibacterial materials and additives. The proportion of natural fibers is 40%-60%, the bio-based polymer is 20%-30%, the antibacterial material includes tea tree oil, and the tea tree oil is nano-encapsulated, which helps to prevent the growth of bacteria, keep the underwear dry, reduce odors, and maintain a more lasting antibacterial effect. The natural fibers are enhanced by nanotechnology to improve the strength, elasticity and water resistance of the natural fibers.

[0017] The natural fibers are enhanced through nanotechnology by processing them into nanofibers to enhance the strength, toughness, moisture absorption, and breathability of the fibers. In this embodiment, bamboo fibers are used as the natural fibers, and sugarcane fibers or soybean fibers can be used in other solutions.

[0018] The bio-based polymer is PLA or PHA. In this embodiment, the bio-based polymer is PLA. The nano-encapsulation of tea tree oil specifically involves embedding tea tree oil into natural fibers through nano-encapsulation technology to extend the antibacterial effect of tea tree oil.

[0019] The additives include fillers, cross-linking agents, and deodorants. The filler is wood pulp, the cross-linking agent is citric acid, and the deodorant is any one of bamboo charcoal, tea tree oil, or lavender oil. In this embodiment, the addition amount of wood pulp is 10%-20%, which is environmentally friendly and degradable, and also has good moisture absorption, breathability, and softness, maintaining the natural and environmental protection characteristics of the material. Natural substances such as citric acid do not release harmful substances during the cross-linking process, effectively adsorbing moisture and odor molecules in the air. It helps prevent the growth of bacteria, reduces the generation of odors, can provide a fresh aroma, and also inhibits the growth of bacteria and fungi, reducing odors.

[0020] The antibacterial material also includes honey extract and calendula extract. Tea tree oil has strong antibacterial, antifungal, antiviral, and anti-inflammatory properties. It can effectively inhibit the growth of various bacteria, fungi, and viruses, especially in a humid environment, and has a certain anti-inflammatory effect. Honey extract is rich in natural sugars, which can help maintain the hydration of the skin, while providing a slight exfoliating effect, helping to keep the skin fresh and comfortable. Calendula extract can promote the regeneration of skin cells and help treat small wounds, scratches, and skin inflammation. In this embodiment, the concentration of tea tree oil is controlled within 1%-3%, and the addition ratio of honey extract to calendula extract is 0.5%-2%.

[0021] The plasticizer is glycerol, and the proportion of the plasticizer is 1%-5%. Glycerol has strong hydrophilicity and good solubility. It inserts between the polymer chains, reducing the intermolecular forces between the polymer molecular chains, thereby increasing the flexibility and ductility of the material. The overall structure of the underwear sponge will be softer and more comfortable, suitable for close wearing, and can reduce the glass transition temperature of the underwear sponge material, making it easier to mold and process during processing.

[0022] The proportion of natural rubber and seaweed extract in the total mass is 10%-20%. Natural rubber enables the underwear sponge to maintain good elasticity and comfort, provides support while ensuring softness, helps improve the comfort of the underwear sponge, enhances breathability, helps keep it dry, improves the durability of the sponge, making it less prone to aging and brittleness, and has certain antibacterial and odor-proof properties, which can improve the cleanliness and hygiene of the underwear sponge. As a natural plant ingredient, seaweed extract can enhance its biodegradability when used in the sponge. Seaweed extract is rich in minerals and vitamins, and these ingredients can promote skin metabolism, enhance the skin barrier function, help reduce skin problems such as allergies, irritation, and dryness. Seaweed extract can help the underwear sponge better absorb and discharge moisture, keep the skin dry, and reduce discomfort caused by moisture or sweat.

[0023] The antibacterial material also includes silver ions, and the addition ratio of silver ions is 0.1%-0.2%. Silver ions can inhibit the growth of microorganisms through multiple mechanisms. They can destroy the structure of bacterial cells and interfere with the metabolic functions of cells, thereby killing or inhibiting bacteria and fungi. Silver ions have a strong inhibitory effect on a variety of pathogenic bacteria, can provide long-term antibacterial protection, can effectively reduce bacterial growth, reduce odors, and keep the underwear clean and fresh, improving the wearing comfort. The addition of silver ions can combine silver ions with natural fibers or biobased polymers to form silver ion carriers; or combine silver ions with bamboo charcoal or seaweed extract to form composite antibacterial materials, which can also maintain the natural properties of the sponge.

[0024] The production process of the underwear sponge in this embodiment Step S1, prepare fiber materials: Fiber treatment: If using natural fibers such as bamboo fiber or sugarcane fiber, it is first necessary to pre-treat them, such as cleaning and removing impurities, to ensure the purity and stability of the fibers.

[0025] Step S2, polymer dissolution and mixing: Mix biobased polymers (such as PLA, PHA) with water or solvents to dissolve them into a polymer solution with a certain concentration. If necessary, add an appropriate amount of plasticizer to improve the fluidity of the solution.

[0026] Add natural rubber or seaweed extract to the solution and stir evenly to ensure full fusion between the materials.

[0027] Step S3, fiber and solution mixing: Add the prepared natural fiber materials to the solution and stir evenly to ensure that the fibers are completely soaked in the solution.

[0028] During this process, an appropriate amount of filler (such as wood pulp) is added to adjust the structure and density of the sponge.

[0029] Step S4, Crosslinking and Molding: A crosslinking agent (such as a bio-based crosslinking agent) is added to the solution to form a network structure between the polymers, which helps to improve the strength and elasticity of the sponge.

[0030] Using a mold or spray molding equipment, pour the mixture into a preset mold or spray mold it into the desired sponge form.

[0031] Step S5, Drying and Curing: The cast sponge sample is dried, which can be done by natural air drying or low-temperature drying in an oven to remove excess moisture.

[0032] In some cases, the sponge can be further cured by heating or chemical reaction to enhance its structural stability.

[0033] Step S6, Cutting and Surface Treatment: According to requirements, the made sponge is cut into the desired shape and size, suitable for parts such as breast pads and cup pads of underwear.

[0034] The surface of the sponge can be treated as needed, such as adding an antibacterial coating, a moisturizing coating or an anti-odor treatment, to enhance the comfort and hygiene of wearing.

[0035] For the underwear sponge of this solution, the raw materials are natural fibers and bio-based polymers. Both natural fibers and bio-based polymers have good degradability, meeting the trend of sustainable development. Using these materials can greatly reduce environmental pollution, especially when traditional underwear sponge materials cannot be degraded for hundreds of years, showing significant environmental advantages; and natural fibers and bio-based polymers have good softness and breathability, suitable for long-term contact with the skin, so they can provide a comfortable wearing experience. Natural rubber can also enhance the elasticity of the sponge, making it more conforming to and supportive of the body, improving the comfort of the underwear; the antibacterial material uses tea tree oil as a natural antibacterial ingredient, which helps to prevent bacterial growth, keep the underwear dry, and reduce odors. In addition, the addition of an anti-odor agent can enhance the hygiene of the product, especially when worn in hot weather, effectively keeping it fresh; citric acid can improve the strength and stability of the sponge, while ensuring that it still maintains a certain structural stability during the biodegradation process. Crosslinking treatment can prevent the sponge from decomposing prematurely, extend its service life, and avoid material failure caused by too fast degradation. The above are only the preferred embodiments of the present invention, and there is no limitation to the present invention in any form. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments with equivalent changes within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A degradable underwear sponge, characterized in that, Using natural fibers as the base material, mixed with bio-based polymers, natural rubber, seaweed extracts, plasticizers, antibacterial materials and additives, the proportion of the natural fibers is 40%-60%, the bio-based polymer is 20%-30%, the antibacterial material includes tea tree oil, and the tea tree oil is nano-encapsulated, which helps prevent bacterial growth, keeps the underwear dry, reduces odors, and maintains a more lasting antibacterial effect. The natural fibers are enhanced by nanotechnology to improve the strength, elasticity and water resistance of the natural fibers.

2. The degradable underwear sponge according to claim 1, characterized in that, The enhancement of the natural fibers by nanotechnology specifically involves processing the natural fibers into nano-scale fibers to enhance the strength, toughness, moisture absorption and breathability of the fibers.

3. A degradable underwear sponge according to claim 1, characterized in that, The nano-encapsulation of the tea tree oil specifically means embedding the tea tree oil into the natural fibers through nano-encapsulation technology to extend the antibacterial effect of the tea tree oil.

4. The degradable underwear sponge according to claim 1, characterized in that, The additives include fillers, cross-linking agents and odor preventives. The filler is wood pulp, the cross-linking agent is citric acid, and the odor preventive is any one of bamboo charcoal, tea tree oil or lavender oil.

5. A degradable underwear sponge according to claim 1, characterized in that, The antibacterial material also includes honey extract and calendula extract.

6. The degradable underwear sponge according to claim 1, characterized in that, The plasticizer is glycerol, and the proportion of the plasticizer is 1%-5%.

7. The biodegradable underwear sponge according to claim 1, wherein The proportion of the natural rubber and seaweed extract in the total mass is 10%-20%.

8. The biodegradable underwear sponge according to claim 5, characterized in that, The antibacterial material also includes silver ions, and the addition proportion of the silver ions is 0.1%-0.2%.