Antibacterial and odor-resistant polyester sewing thread

By incorporating a bio-based polyester core and a multi-layered spiral yarn structure into the sewing thread, it integrates functions such as antibacterial, odor-proof, moisture-wicking, and flame-retardant properties, solving the problems of insufficient safety and functionality in sewing thread and improving its versatility and environmental friendliness.

CN224299506UActive Publication Date: 2026-05-29ZHEJIANG HUJIANG THREAD IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG HUJIANG THREAD IND CO LTD
Filing Date
2025-03-03
Publication Date
2026-05-29

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Abstract

The utility model discloses a kind of antibacterial and peculiar smell prevention polyester sewing thread, belong to sewing thread field, a kind of antibacterial and peculiar smell prevention polyester sewing thread, including polyester inner core, the outside of polyester inner core is provided with first yarn layer, the outside of first yarn layer is provided with second yarn layer, the outside of second yarn layer is provided with third yarn layer;The inside of first yarn layer is provided with first spiral silk thread, second spiral silk thread, third spiral silk thread and fourth spiral silk thread, the side of first spiral silk thread is provided with second spiral silk thread, the side of second spiral silk thread is provided with third spiral silk thread, the side of third spiral silk thread is provided with fourth spiral silk thread, the material of first spiral silk thread is spandex, the material of second spiral silk thread is carbon fiber, it integrates antibacterial, peculiar smell prevention, moisture absorption and perspiration, flame retardant, temperature regulation, cut resistance and various functions, satisfy diversification demand.
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Description

Technical Field

[0001] This utility model relates to the field of sewing thread, and more specifically, to a polyester sewing thread that is antibacterial and odor-resistant. Background Technology

[0002] As people's living standards continue to improve, the demand for fabrics has also increased significantly. At the same time, people's requirements for fabric quality are also getting higher and higher. As an important part of clothing and textiles, the performance requirements of sewing thread are also gradually increasing. Traditional sewing thread mainly focuses on strength and durability, but in modern applications, sewing thread not only needs to have basic mechanical properties, but also needs to meet multiple functional requirements such as antibacterial, odor prevention, moisture absorption and perspiration wicking, flame retardancy, and temperature regulation.

[0003] For example, patent (CN221971777U) discloses an elastic polyester fiber sewing thread. The yarn core still uses polyester, a synthetic fiber, as the main component and mixes it with nylon to form the yarn core, so that it has the high elasticity of nylon and polyester, and has some of the softness of nylon. The thread is reinforced by wrapping the fiber yarn and the elasticity is supplemented by the elastic layer.

[0004] When using the above technology, the following technical problems were found in the existing technology: although it has high elasticity and softness, it lacks additional functions such as antibacterial, odor prevention, and moisture wicking, and does not involve safety functions such as flame retardancy and cut resistance. Therefore, we designed an antibacterial and odor-proof polyester sewing thread to provide another technical solution to the above technical problems. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In view of the problems existing in the prior art, the purpose of this utility model is to provide an antibacterial and odor-proof polyester sewing thread that integrates multiple functions such as antibacterial, odor-proof, moisture-wicking, flame retardant, temperature regulation, and cut resistance to meet diverse needs.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] An antibacterial and odor-resistant polyester sewing thread includes a polyester core, a first yarn layer on the outside of the polyester core, a second yarn layer on the outside of the first yarn layer, and a third yarn layer on the outside of the second yarn layer.

[0010] The first yarn layer is provided with a first spiral filament, a second spiral filament, a third spiral filament and a fourth spiral filament. A second spiral filament is provided on one side of the first spiral filament, a third spiral filament is provided on one side of the second spiral filament, and a fourth spiral filament is provided on one side of the third spiral filament.

[0011] Furthermore, the material of the first spiral yarn is spandex;

[0012] The second spiral wire is made of carbon fiber.

[0013] Furthermore, the material of the third helical filament is a phase change material coated fiber;

[0014] The fourth spiral thread is made of glass fiber.

[0015] Furthermore, the polyester core is made of bio-based polyester;

[0016] The first yarn layer is made of moisture-wicking fibers.

[0017] Furthermore, the second yarn layer is made of flame-retardant polyester;

[0018] The third yarn layer is made of a photocatalytic coated yarn layer.

[0019] 3. Beneficial effects

[0020] Compared with existing technologies, the advantages of this utility model are:

[0021] This solution integrates multiple functions such as antibacterial, odor prevention, moisture wicking, flame retardancy, temperature regulation, and cut resistance through a series of designs to meet diverse needs. It uses a polyester core made of bio-based polyester, derived from renewable resources, reducing carbon footprint and conforming to the trend of green environmental protection. The polyester core and the first yarn layer provide high strength and abrasion resistance, extending the service life of the sewing thread. The first yarn layer and the first spiral thread ensure that the garment is dry and fits the body, improving wearing comfort. The second yarn layer and the fourth spiral thread provide fire resistance, high temperature resistance, and cut resistance, making it suitable for high-risk environments. The third spiral thread can automatically adjust according to the ambient temperature to maintain comfort. The third yarn layer and the first yarn layer can inhibit bacterial growth, decompose odor molecules, and keep the fabric fresh. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the polyester inner core and the first yarn layer of this utility model;

[0024] Figure 3 This is a cross-sectional schematic diagram of the entire utility model;

[0025] Figure 4 This is a schematic diagram of the internal structure of the first yarn layer of this utility model.

[0026] Explanation of the labels in the diagram:

[0027] 1. Polyester inner core; 2. First yarn layer; 3. Second yarn layer; 4. Third yarn layer; 21. First spiral yarn; 22. Second spiral yarn; 23. Third spiral yarn; 24. Fourth spiral yarn. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0029] Example:

[0030] Please see Figure 1-4 An antibacterial and odor-resistant polyester sewing thread includes a polyester inner core 1, a first yarn layer 2 on the outside of the polyester inner core 1, a second yarn layer 3 on the outside of the first yarn layer 2, and a third yarn layer 4 on the outside of the second yarn layer 3.

[0031] The first yarn layer 2 is provided with a first spiral yarn 21, a second spiral yarn 22, a third spiral yarn 23 and a fourth spiral yarn 24. The second spiral yarn 22 is provided on one side of the first spiral yarn 21, the third spiral yarn 23 is provided on one side of the second spiral yarn 22, and the fourth spiral yarn 24 is provided on one side of the third spiral yarn 23.

[0032] The first spiral thread 21 is made of spandex. Spandex has extremely high elasticity, which can be stretched to 5-8 times its original length and quickly return to its original shape. This allows the sewing thread to withstand greater tension during sewing and is not easy to break. The elasticity of spandex allows the sewing thread to stretch and contract synchronously with the fabric, ensuring that the garment fits the body better when worn, improving comfort and freedom of movement. It has excellent abrasion resistance and fatigue resistance, and can withstand multiple stretching and recovery. The excellent elasticity of spandex allows the sewing thread to adapt to the needs of highly elastic fabrics.

[0033] The second spiral thread 22 is made of carbon fiber. Carbon fiber has extremely high strength and is extremely lightweight, making it an ideal alternative to traditional metal materials. As a spiral thread, carbon fiber can significantly improve the tensile strength and abrasion resistance of sewing thread without adding weight. It has good conductivity, which can effectively eliminate static electricity. It can maintain stable performance in high-temperature environments and is not easily deformed or broken. It has excellent corrosion resistance to chemicals and humid environments and is not easily corroded by acids, alkalis or moisture. This gives the sewing thread not only high strength, but also antistatic, high-temperature resistant and corrosion resistant properties.

[0034] The third spiral thread 23 is made of phase change material coated fiber. The phase change material coated fiber can absorb, store and release heat within a specific temperature range, thereby regulating the temperature of the sewing thread and its surrounding environment, so that the sewing thread can automatically adjust the temperature according to changes in ambient temperature and maintain the wearer's comfort.

[0035] The fourth spiral thread 24 is made of glass fiber. Glass fiber has extremely high tensile strength, which can withstand large external forces without easily breaking. Glass fiber has high hardness, which can effectively resist the cutting of knives and sharp objects, providing excellent protective performance and improving the safety of sewing thread.

[0036] The polyester core 1 is made of bio-based polyester, which is derived from renewable resources such as corn starch and sugarcane. This reduces dependence on petroleum-based materials, lowers the carbon footprint, and aligns with the trend of green environmental protection. Bio-based polyester has similar strength and abrasion resistance to traditional polyester, ensuring that the basic performance of the sewing thread is not affected. Compared to traditional polyester, bio-based polyester is easier to degrade, reducing the long-term impact on the environment. It provides the core support for the sewing thread, ensuring its strength and durability, while also enhancing the product's environmental attributes.

[0037] The first yarn layer 2 is made of moisture-wicking fiber, which can quickly absorb sweat from the skin surface and diffuse it to the fiber surface for evaporation, keeping the area around the sewing thread dry. It is suitable for clothing used in high-intensity sports or high-temperature environments. The moisture-wicking fiber can reduce the retention of sweat on the skin and clothing surface, thereby reducing the chance of bacterial growth and indirectly reducing odor. It not only has basic strength and antibacterial properties, but also improves the comfort and practicality of clothing.

[0038] The second yarn layer 3 is made of flame-retardant polyester, which is not easily burned in high temperature or open flame environments. It can effectively delay the spread of flames and provide extra fire protection for clothing. It has excellent high temperature resistance and can maintain structural stability in high temperature environments, preventing the sewing thread from breaking or failing due to high temperature. The second yarn layer 3 is located on the outside of the polyester inner core 1 and can provide flame-retardant protection for the polyester inner core 1, ensuring the safety of the sewing thread in high temperature or open flame environments.

[0039] The third yarn layer 4 is made of photocatalytic coated yarn. The photocatalytic coated yarn layer is formed by uniformly covering the surface of the yarn layer with a nano-level titanium dioxide photocatalytic coating. The photocatalytic coated yarn layer utilizes the strong oxidizing free radicals generated by the photocatalytic material under light to destroy the bacterial cell membrane and viral protein structure, thereby achieving the effect of antibacterial and deodorizing. It has a broad-spectrum antibacterial effect on a variety of bacteria, molds and viruses, decomposes odor molecules, keeps the fabric fresh, and the photocatalyst is non-toxic and harmless and does not produce secondary pollution.

[0040] Through a series of designs, it integrates multiple functions such as antibacterial, odor prevention, moisture wicking, flame retardancy, temperature regulation, and cut resistance to meet diverse needs. It adopts a polyester inner core 1 made of bio-based polyester, which is derived from renewable resources, reducing carbon footprint and conforming to the trend of green environmental protection. The polyester inner core 1 and the first yarn layer 2 provide high strength and abrasion resistance, extending the service life of the sewing thread. The first yarn layer 2 and the first spiral yarn 21 ensure that the garment is dry and fits the body, improving wearing comfort. The second yarn layer 3 and the fourth spiral yarn 24 provide fire resistance, high temperature resistance, and cut resistance, making it suitable for high-risk environments. The third spiral yarn 23 can automatically adjust according to the ambient temperature to maintain comfort. The third yarn layer 4 and the first yarn layer 2 can inhibit bacterial growth, decompose odor molecules, and keep the fabric fresh.

[0041] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A type of antibacterial and odor-resistant polyester sewing thread, characterized in that: It includes a polyester inner core (1), a first yarn layer (2) is provided on the outside of the polyester inner core (1), a second yarn layer (3) is provided on the outside of the first yarn layer (2), and a third yarn layer (4) is provided on the outside of the second yarn layer (3). The first yarn layer (2) is provided with a first spiral yarn (21), a second spiral yarn (22), a third spiral yarn (23) and a fourth spiral yarn (24). The second spiral yarn (22) is provided on one side of the first spiral yarn (21), the third spiral yarn (23) is provided on one side of the second spiral yarn (22), and the fourth spiral yarn (24) is provided on one side of the third spiral yarn (23). The polyester core (1) is made of bio-based polyester; The material of the first yarn layer (2) is moisture-wicking fiber; The material of the second yarn layer (3) is flame-retardant polyester; The material of the third yarn layer (4) is a photocatalytic coated yarn layer.

2. The antibacterial and odor-resistant polyester sewing thread according to claim 1, characterized in that: The first spiral yarn (21) is made of spandex; The material of the second spiral wire (22) is carbon fiber.

3. The antibacterial and odor-resistant polyester sewing thread according to claim 1, characterized in that: The material of the third spiral filament (23) is a phase change material coated fiber; The fourth spiral filament (24) is made of glass fiber.