High-strength degradable straw

Abstract

The utility model relates to the field of degradable straws, and discloses a high-strength degradable straw which comprises a spiral belt-shaped body, the spiral position of the belt-shaped body is kept attached to form a complete tubular object, a spiral reinforcing rib is arranged on the inner side of the belt-shaped body, and the high-strength degradable straw is made of degradable materials. The plastic wastes such as polylactic acid (PLA), plant fibers and the like can be decomposed and converted into carbon dioxide and water by microorganisms in a short time under a natural environment or an industrial composting condition, so that the long-term accumulation of the plastic wastes in soil and water is greatly reduced, the damage of plastic pollution to the ecological environment is relieved from the source, and the habitat of wild animals and plants is effectively protected; and the risk that the plastic particles enter a food chain is reduced.

Description

Technical Field

[0001] This utility model relates to the field of biodegradable straws, specifically a high-strength biodegradable straw. Background Technology

[0002] While paper straws, currently the most common type on the market, represent a first step towards biodegradability, their actual user experience is far from satisfactory. Paper straws soften and bend quickly, and are even prone to breaking when used with toppings like tapioca pearls. At waste treatment plants, damp paper straws are not only difficult to recycle but also add considerable trouble to subsequent sorting processes. Conversely, some ordinary biodegradable plastic straws also present numerous problems. In terms of degradation, they degrade slowly in the natural environment and are difficult to completely degrade, leaving behind small, difficult-to-handle plastic particles. From a production perspective, the manufacturing process of some biodegradable plastic straws is extremely complex, requiring specialized equipment and incurring high costs, which undoubtedly limits their large-scale application. Therefore, we have proposed a high-strength biodegradable straw. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a high-strength biodegradable straw, which solves the aforementioned problems.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a high-strength biodegradable straw, comprising a spiral-shaped strip body, wherein the spiral portion of the strip body remains in contact to form a complete tubular object, and a spiral reinforcing rib is provided on the inner side of the strip body.

[0005] Preferably, the spiral reinforcing ribs are made of plant fibers or synthetic biodegradable fibers.

[0006] Preferably, the plant fiber is bamboo fiber or wood fiber.

[0007] Preferably, the synthetic biodegradable fiber is polylactic acid fiber, etc.

[0008] Preferably, the strip body includes a straw base paper and two side protrusions integrally formed on both sides of the straw base paper, and the two side protrusions are staggered.

[0009] Preferably, the straw base paper is high-strength, heat-resistant, and biodegradable straw base paper.

[0010] Preferably, the strip-shaped body includes an outer layer of fibers and an inner layer of fibers, which are bonded together by an adhesive layer, and the outer layer of fibers and the inner layer of fibers are staggered.

[0011] Preferably, the outer and inner fibers are made of a mixture of fiber and pulp, and the fibers are hemp fiber and cotton fiber.

[0012] Preferably, an inner film is laminated to the inner side of the inner fiber, and the inner film is a biodegradable film.

[0013] Compared with the prior art, this utility model provides a high-strength biodegradable straw, which has the following beneficial effects:

[0014] Significant environmental benefits

[0015] Highly efficient degradation, reducing pollution: High-strength biodegradable straws are made of biodegradable materials such as polylactic acid (PLA) and plant fibers. Under natural or industrial composting conditions, they can be decomposed by microorganisms in a short time, turning into carbon dioxide and water. This greatly reduces the long-term accumulation of plastic waste in soil and water, alleviating the damage of plastic pollution to the ecological environment from the source, effectively protecting the habitats of wild animals and plants, and reducing the risk of microplastics entering the food chain.

[0016] Sustainable resource utilization: Some biodegradable straws are made from renewable resources, such as polylactic acid made from crops like corn and cassava, and plant fibers like bamboo and sugarcane bagasse. This not only reduces dependence on non-renewable resources like petroleum, but also opens up new avenues for the comprehensive utilization of agricultural and forestry waste, promoting resource recycling and sustainable development.

[0017] Improve user experience

[0018] Exceptional strength: The spiral reinforcing ribs inside the straw, whether made of plant fiber or synthetic biodegradable fiber, give the straw outstanding strength and toughness. In actual use, whether drinking large toppings such as tapioca pearls or coconut jelly, or dealing with the high temperatures of hot drinks or the low temperatures of cold drinks, it is not prone to bending or breaking, ensuring that consumers can enjoy their drinks smoothly and comfortably, greatly improving the product's durability and practicality.

[0019] Excellent temperature resistance: The strip body, made of high-strength, temperature-resistant, biodegradable straw paper and other materials, gives the straw excellent temperature resistance. Whether it's scalding hot coffee or icy slush, the straw maintains a stable shape and structure, and will not soften or deform due to temperature changes, providing consumers with a consistently high-quality user experience. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a side view of the present invention;

[0022] Figure 3 for Figure 4AA section view diagram;

[0023] Figure 4 for Figure 3 A magnified view of section B in the diagram;

[0024] Figure 5 This is a schematic diagram of the strip-shaped body structure.

[0025] In the diagram: 1. Strip-shaped body; 2. Spiral reinforcing rib; 3. Straw base paper; 4. Side protrusion one; 5. Side protrusion two; 6. Outer layer fiber; 7. Inner layer fiber; 8. Inner film; 9. Adhesive layer. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-5 ,

[0028] A high-strength biodegradable straw includes a spiral-shaped strip body 1, the spiral portion of the strip body 1 is kept in place to form a complete tube, and a spiral reinforcing rib 2 is provided on the inner side of the strip body 1.

[0029] Furthermore, the spiral reinforcing rib 2 is made of plant fiber or synthetic biodegradable fiber.

[0030] Furthermore, the plant fibers are bamboo or wood fibers. These fibers are naturally biodegradable and have a certain strength, are widely available, and are relatively inexpensive. Bamboo fiber has good toughness and antibacterial properties, while wood fiber has good flexibility and a certain degree of rigidity; they can provide a basic supporting structure for straws.

[0031] Furthermore, synthetic biodegradable fibers include polylactic acid (PLA) fibers. PLA fibers are made from polylactic acid and, in addition to being biodegradable, also possess high strength and modulus, effectively enhancing the mechanical properties of straws and enabling them to withstand greater external forces without deformation or breakage.

[0032] Furthermore, the strip body 1 includes a straw base paper 3 and side protrusions 1 and 2 on both sides of the straw base paper 3 integrally formed. The side protrusions 1 and 2 are staggered. When spirally wound, the side protrusion 1 is located on the inner side and flush with the inner side of the straw base paper 3, and the side protrusion 2 is located on the outer side and flush with the outer side of the straw base paper 3. At the same time, the side protrusion 1 and the corresponding side of the straw base paper 3 are glued together to form a bent tube.

[0033] Furthermore, the straw base paper 3 is a high-strength, heat-resistant, and biodegradable straw base paper. The raw materials include plant fiber pulp, plant polylactic acid pulp or plant polylactic acid short fibers, and a wet strength agent. Through processes such as pulping, mixing, sizing, adding wet strength agent, paper forming, pressing and dewatering, drying, and hot pressing, a high-strength, high-stiffness, and water-resistant straw base paper can be produced.

[0034] Example 2, based on Example 1, refers to the following content:

[0035] Furthermore, the strip body 1 includes an outer fiber 6 and an inner fiber 7, which are bonded together by an adhesive layer 9. The outer fiber 6 and the inner fiber 7 are staggered. When spirally wound, the inner fiber 7 is located on the inside and the outer fiber 6 is located on the outside. The staggered areas of the inner fiber 7 and the outer fiber 6 are bonded to each other.

[0036] Furthermore, the outer fiber 6 and the inner fiber 7 are made of a mixture of fiber and pulp, and the fiber is made of hemp fiber and cotton fiber.

[0037] Furthermore, an inner film 8 is laminated to the inner side of the inner fiber 7, and the inner film 8 is a biodegradable film.

[0038] Structural Description:

[0039] ribbon body 1

[0040] Structural features: It has a spiral shape, with the spiral parts remaining closed, ultimately forming a complete tube. It is the key part that constitutes the main shape of the straw.

[0041] Example 1: Composed of a straw base paper 3 and two side protrusions 4 and 5 integrally formed on both sides of the straw base paper 3. The side protrusions 4 and 5 are staggered. During spiral winding, the side protrusion 4 is located on the inner side and flush with the inner side of the straw base paper 3, and the side protrusion 5 is located on the outer side and flush with the outer side of the straw base paper 3. The side protrusions 4 and the corresponding sides of the straw base paper 3 are adhered together, thereby bending to form a tube shape.

[0042] Example 2 configuration: Includes an outer fiber 6 and an inner fiber 7, which are bonded together by an adhesive layer 9 and are staggered. During spiral winding, the inner fiber 7 is located on the inside and the outer fiber 6 is located on the outside, with the staggered areas of the inner fiber 7 and the outer fiber 6 bonded together.

[0043] Spiral reinforcing rib 2

[0044] Function: Located on the inside of the strip body 1, it is mainly used to enhance the strength of the straw.

[0045] Material selection: Plant fibers or synthetic biodegradable fibers can be used. Among them, plant fibers can be bamboo fiber or wood fiber. Bamboo fiber has good toughness and antibacterial properties, while wood fiber has good flexibility and a certain degree of rigidity, which can provide a basic support structure for the straw. Synthetic biodegradable fibers can be polylactic acid fibers, which have biodegradable properties and high strength and modulus, which can effectively enhance the mechanical properties of the straw, making it less prone to deformation or breakage when subjected to greater external forces.

[0046] Straw base paper 3 Example 1 related structure

[0047] Material characteristics: It is a high-strength, heat-resistant, biodegradable straw base paper. Its raw materials include plant fiber pulp, plant polylactic acid pulp or plant polylactic acid short fibers, and wet strength agents.

[0048] Production process: Through a series of processes including pulping, mixing, sizing, adding wet strength agent, paper forming, pressing and dewatering, drying and hot pressing, straw base paper with high strength, high stiffness and water resistance is produced, providing basic structural support and certain physical performance guarantee for straws.

[0049] Side protrusion - 4 Embodiment 1 Related Structure

[0050] Position and function: It is integrally formed on one side of the straw base paper 3. During the spiral winding process, it is located on the inner side and flush with the inner side of the straw base paper 3. It is also glued to the corresponding side of the straw base paper 3 to help form a bent tubular structure, which helps to maintain the overall shape of the straw.

[0051] Side protrusion 2 5 Embodiment 1 Related Structure

[0052] Position and function: It is integrally formed on the other side of the straw base paper 3, and is offset from the side protrusion 4. During spiral winding, it is located on the outer side and flush with the outer side of the straw base paper 3. It works together with the side protrusion 4 to play a role in the formation of the tubular structure and helps to ensure the integrity of the straw structure.

[0053] Outer fiber 6 Example 2 related structure

[0054] Composition and function: It is made of a mixture of fiber and pulp, including hemp fiber and cotton fiber. It is located on the outside during spiral winding and is bonded to the inner layer fiber 7 through the adhesive layer 9. The misaligned areas are also bonded to each other. Together with the inner layer fiber 7, it provides structural strength and certain physical properties for the straw. The high strength of hemp fiber and the softness, comfort and hydrophilicity of cotton fiber can improve the overall performance of the straw.

[0055] Inner layer fiber 7 Example 2 related structure

[0056] Composition and Function: Also made from a mixture of fiber and pulp, the fibers being hemp and cotton. During spiral winding, the inner layer of fiber 6 works in conjunction with the outer layer to provide structural support for the straw. An inner film 8 is laminated to the inner side, further enhancing the straw's performance.

[0057] Inner membrane 8 Example 2 related structure

[0058] Material and function: It uses a biodegradable film, which is laminated on the inside of the inner fiber 7. It may play a role in barrier and waterproofing. At the same time, due to its biodegradable properties, it meets the overall environmental protection requirements of straws, ensuring the functionality of straws without increasing the environmental burden.

[0059] Adhesive layer 9 Example 2 related structure

[0060] Function: Located between the outer fiber 6 and the inner fiber 7, it is used to firmly bond the outer fiber 6 and the inner fiber 7 together, so that when they are part of the strip body 1, they can work together to ensure the stability and strength of the overall structure of the straw.

[0061] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is limited by the appended claims and their equivalents.

Claims

1. A high strength degradable drinking straw characterized by The application relates to a spiral-shaped strip-shaped body (1) which is kept in close contact at the spiral part of the strip-shaped body (1) to form a complete tubular object, and spiral-shaped spiral reinforcing ribs (2) are arranged on the inner side of the strip-shaped body (1); The spiral reinforcing ribs (2) are made of plant fibers or synthetic degradable fibers; The plant fibers are bamboo fibers or wood fibers; The synthetic degradable fibers are polylactic acid fibers; The strip-shaped body (1) comprises a straw base paper (3) and side protrusions one (4) and two (5) integrally formed on the two sides of the straw base paper (3), and the side protrusions one (4) and two (5) are arranged in a staggered mode; The straw base paper (3) is a high-strength temperature-resistant degradable straw base paper.

2. A high strength degradable drinking straw according to claim 1, wherein: The strip-shaped body (1) comprises outer layer fibers (6) and inner layer fibers (7), the outer layer fibers (6) and the inner layer fibers (7) are adhered through an adhesive layer (9), and the outer layer fibers (6) and the inner layer fibers (7) are arranged in a staggered mode.

3. A high strength degradable drinking straw according to claim 2, wherein: The inner side of the inner layer fibers (7) is compounded with an inner side film (8), and the inner side film (8) is made of a degradable film.

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