Washable functional fabric with antibacterial and deodorizing properties

A wash-resistant functional fabric with a polyester-spandex structure and integrated silver ion antibacterial agent addresses the issue of conventional fabrics losing antibacterial and deodorizing effects with washing, maintaining efficacy through a specialized dyeing and treatment process.

JP3252833UActive Publication Date: 2025-09-11ユTRADE ENTERPRISE STOCKS CO LTD
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Patent Information

Application Number
JP2025002387U
Authority / Receiving Office
JP · JP
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2025-07-16
Publication Date
2025-09-11
Estimated Expiration
2035-07-16

AI Technical Summary

Technical Problem

Conventional antibacterial fabrics lose their antibacterial and deodorizing effects with increasing washing frequency due to the degradation of surface-applied antibacterial substances, leading to unsustainable performance.

Method used

A wash-resistant functional fabric is developed with a greige fabric made of polyester and spandex, featuring a first functional layer and a second bacteriostatic and deodorizing layer containing a silver ion antibacterial agent, which is integrated through a meticulous dyeing and treatment process to ensure long-lasting antibacterial and deodorizing effects.

Benefits of technology

The fabric maintains effective antibacterial and deodorizing properties even after multiple washes, preventing bacterial growth and odor generation by using a silver ion agent that penetrates and binds to fabric fibers, ensuring wash-resistant performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a wash-resistant functional fabric having antibacterial and deodorizing effects. The present invention comprises a greige fabric (20), a first functional layer (21), and a second functional layer (22). The greige fabric is made of a woven material of polyester and spandex, and a highly elastic knit fabric is formed by interlacing warp and weft yarns. This fabric is then pre-treated to form a half-bleached fabric through scouring, and then dyed to form a dyed fabric. The first functional layer covers the dyed fabric 20a on the half-bleached fabric after scouring the greige fabric, and is bonded to it to form a dyed fabric, a semi-finished woven fabric of a wash-resistant functional fabric substrate, forming a wash-resistant layer of the dyed layer. The second functional layer is a bacteriostatic and deodorizing layer applied to the surface of the first functional layer and bonded to the first functional layer. The bacteriostatic and deodorizing layer contains a bacteriostatic and deodorizing agent X. The bacteriostatic and deodorizing agent is a silver ion bacteriostatic agent.
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Description

[Technical Field]

[0001] This invention relates to a wash-resistant functional fabric with antibacterial and deodorizing effects, and in particular to a wash-resistant functional fabric with antibacterial and deodorizing effects that is a highly elastic knit fabric with antibacterial and deodorizing effects. [Background technology]

[0002] Conventional antibacterial fabrics generally contain silver or other antibacterial substances in the fabric material, and their basic principle is to have antibacterial and water- and sweat-absorbent, quick-drying properties, thereby inhibiting bacterial growth and preventing the generation of unpleasant odors. However, because conventional antibacterial fabrics have antibacterial substances applied directly to the surface of the fabric, the antibacterial substances in the fabric material gradually decrease with increasing washing frequency, and the deodorizing effect can decrease. However, the antibacterial and water- and sweat-absorbent, quick-drying effects are not sustainable, and the antibacterial effect is easily weakened.

[0003] In view of the drawbacks of the conventional structure described above, in order to achieve a long-lasting antibacterial and deodorizing effect, the processing of fabric materials requires the selection of materials, the weaving structure, and the dyeing method, and the entire process must be considered, including specialized techniques and meticulous operation. In view of this situation, the inventor conducted extensive research, made improvements, and made prototypes, and has now completed this invention. Summary of the Invention [Problem to be solved by the invention]

[0004] The main purpose of the present invention is to provide a wash-resistant functional fabric with antibacterial and deodorizing effects, which is a highly elastic knitted fabric with wash-resistant, antibacterial and deodorizing effects. [Means for solving the problem]

[0005] In order to solve the above problems, according to a first aspect of the present invention, there is provided a wash-resistant functional fabric having antibacterial and deodorizing effects, comprising a greige fabric, a first functional layer, and a second functional layer, wherein the greige fabric is made of a woven material of polyester and spandex, and a highly elastic knit fabric is formed by interlacing warp and weft yarns, which is then scoured in a pre-treatment to form a half-bleached fabric, and then dyed to form a dyed fabric, the first functional layer covers the dyed fabric woven on the half-bleached fabric after scouring the greige fabric, and is combined with it to form a dyed fabric of a semi-finished woven fabric of a wash-resistant functional fabric base material, forming a wash-resistant layer of the dyed layer, the second functional layer is a bacteriostatic and deodorizing layer applied to the surface of the first functional layer and combined with the first functional layer, the bacteriostatic and deodorizing layer contains a bacteriostatic and deodorizing agent, and the bacteriostatic and deodorizing agent is a silver ion antibacterial agent. The grey fabric is pre-treated by placing it in a dye bath, where it is pre-shrunk and scoured, and surface impurities are removed before it is removed from the dye bath to form the half-bleached fabric. After the half-bleached fabric is placed in the dye bath and dyed, the dyed fabric is immersed in a dye solution with an acidic pH value to allow dye molecules to fully penetrate into the fabric fibers. After the dyed fabric is removed from the dye bath, the pH value of the fabric is neutralized with sodium hydroxide and the fabric is dried and shaped to stabilize color fastness. A woven fabric for a semi-finished base material of a wash-resistant fabric having the first functional layer is formed on the surface. The bacteriostatic and deodorizing agent is applied to the woven fabric for the semi-finished base material of the wash-resistant fabric, and the second functional layer is formed at a high temperature and low speed, covering it evenly and allowing it to completely penetrate into the fabric fibers. After cooling, the finished wash-resistant fabric with the bacteriostatic and deodorizing functional layer is obtained.

[0006] The silver ion bacteriostatic agent of the bacteriostatic deodorizer is preferably active on fabrics and non-transferable.

[0007] The silver ion bacteriostatic agent of the bacteriostatic deodorant is preferably silver ion (RUCO-BAC AGP) manufactured by Rudolph GmbH of Germany.

[0008] It is preferable to add an emulsifier and a chelating agent to the dye liquor of the grey fabric, immerse the surface of the fabric in circulating hot water at 90°C to scour it, prevent impurities on the surface of the fabric and metal ions such as calcium, magnesium, and iron in the water from accumulating, and then dye the fabric at a high temperature of 130°C under high pressure.

[0009] The first functional layer preferably represents the woven fabric of the semi-finished substrate of the wash-resistant functional fabric, and the pH value of the woven fabric after dyeing is completed and immersion and neutralization is preferably 5 to 7.

[0010] Preferably, the greige fabric is woven into a single face knit fabric or a double face knit fabric. [Effects of the Invention]

[0011] The wash-resistant functional fabric with antibacterial and deodorizing effects of the present invention has wash-resistant, antibacterial, and deodorizing effects. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a flow chart showing the formation of a wash-resistant fabric having antibacterial and deodorizing effects according to an embodiment of the present invention. [Figure 2] 1 is a perspective view and a partially enlarged view of a wash-resistant functional fabric having antibacterial and deodorizing effects according to an embodiment of the present invention; [Figure 3] 1 is a cross-sectional view showing a wash-resistant functional fabric having antibacterial and deodorizing effects according to one embodiment of the present invention; [Figure 4] 1 is a cross-sectional view of a wash-resistant fabric having antibacterial and deodorizing effects according to an embodiment of the present invention in use. [Figure 5] 1 is a perspective view showing a state in which a wash-resistant functional fabric having antibacterial and deodorizing effects according to one embodiment of the present invention is applied to sportswear. [Figure 6] 1 is a perspective view showing a state in which a wash-resistant functional fabric having antibacterial and deodorizing effects according to one embodiment of the present invention is applied to training pants. [Figure 7]FIG. 1 is a perspective view showing a state in which a wash-resistant functional fabric having antibacterial and deodorizing effects according to one embodiment of the present invention is applied to a sports bra. [Figure 8] FIG. 1 is a perspective view showing a state in which a wash-resistant functional fabric having antibacterial and deodorizing effects according to one embodiment of the present invention is applied to a mask. DETAILED DESCRIPTION OF THE INVENTION

[0013] In order to more completely and clearly disclose the technical means of the present invention and the effects that can be achieved thereby, the present invention will be described in detail below in conjunction with the accompanying drawings and reference numerals disclosed, although the present invention is not limited by such drawings.

[0014] First, let us refer to Figures 1 to 4. As shown in Figures 1 to 4, a wash-resistant functional fabric having antibacterial and deodorizing effects according to one embodiment of the present invention comprises a grey fabric 20, a first functional layer 21 having a dyed layer, and a second functional layer 22 having antibacterial and deodorizing effects. The first functional layer 21 is a dyed layer that covers the surface of the half-bleached fabric obtained after scouring the grey fabric and is bonded to it. The second functional layer 22 is a bacteriostatic and deodorizing functional layer that is applied to the surface of the first functional layer 21 and bonded to it. The dyed layer is a dyed fabric 20a obtained after dyeing the half-bleached fabric after pre-treating and scouring the grey fabric 20, and is then neutralized, dehydrated, and dried to form a semi-finished base fabric 20a for the wash-resistant functional fabric having the first functional layer 21 of the dyed layer. The second functional layer 22 is formed by applying an antibacterial and deodorizing agent to the surface of the semi-finished base fabric 20a of the wash-resistant functional fabric on the first functional layer 21, molding it at a high temperature, and allowing it to completely soak into the fibers of the semi-finished base fabric 20a of the wash-resistant functional fabric, thereby forming the second functional layer 22 and molding the finished antibacterial and deodorizing wash-resistant functional fabric 2 at a high temperature and low speed. The above-mentioned effects that can be achieved by the present invention will be explained in detail below by referring to the main components of the present invention and their corresponding production relationships. Please also refer to Figures 1 to 3. As shown in Figures 1 to 3, the present invention is composed of the following multiple elements.

[0015] In order to achieve the above-mentioned effects of the present invention, the molding components and production correspondence of the present invention will be described in detail below.

[0016] The wash-resistant functional fabric having antibacterial and deodorizing effects according to one embodiment of the present invention includes a greige fabric 20.

[0017] The greige fabric 20 is made of a woven material consisting of 85% polyester, a synthetic fiber, and 15% spandex, an elastic fiber, and is a highly elastic knit fabric formed by interlacing the warp and weft yarns. The greige fabric 20 is then placed in a dye bath containing an emulsifier, where it is immersed in circulating hot water at 90°C for 30 minutes and scoured to remove impurities from the surface of the fabric. A pre-treatment process is then carried out to form a half-bleached fabric when it is removed from the dye bath. The dimensions and shape of the fabric are then stabilized at a high temperature of 190°C and a speed of 20 meters per minute to prevent deformation in the subsequent high-temperature drying process. The greige fabric 20 is first pre-treated to pre-shrink and scour, and the half-bleached fabric after impurities are removed is then molded at a high temperature to prevent deformation, and the first functional layer 21 is then treated.

[0018] The woven material of the above-mentioned greige fabric 20 is a combination of a woven material that combines 85% polyester and 15% spandex, a woven material that combines 82% polyester and 18% spandex, a woven material that combines 78% polyester and 22% spandex, or a woven material that combines nylon and spandex, combined with a greige weave with a high needle count (for example, 28 needles, 32 needles, 36 needles, etc.), and the interlacing of warp and weft threads forms a highly elastic, high-density, and tightly packed greige fabric surface.

[0019] In this embodiment, the woven surface of the above-mentioned grey fabric 20 is woven into a grey fabric 20 of single-face knit fabric (Single Jersey) or double-face knit fabric (Interlock Knitting), and the woven surface of the grey fabric 20 is formed into a highly dense woven surface.

[0020] The first functional layer 21 is a wash-resistant layer having a dyed layer, and is a semi-finished base fabric 20a. The above-mentioned greige fabric 20 is taken out and pre-treated to produce a half-bleached fabric, which is then dyed at high temperature and high pressure for 40 minutes at 130°C, and then taken out of the dye bath to produce a dyed fabric 20a. After removing any oil or impurities remaining during the entire dyeing process by washing with water, the fabric is dried and shaped in a dryer at 150°C and a speed of 20 meters per minute to form a dried fabric. The fabric is immersed in a dye solution with a pH value on the acidic side in a dye bath, and in a high-temperature, high-pressure dyeing process, the dye molecules penetrate into the fibers of the dyed fabric 20a.The pH value of the fabric 20a is then neutralized with sodium hydroxide, and the fabric is dried and shaped to cover the surface of the fabric 20a and bond with the gray fabric 20, forming a first functional layer 21 with a wash-resistant dye layer, effectively stabilizing the color fastness of the dye layer.The fabric 20a is then pre-positioned to form a semi-finished substrate for the wash-resistant functional fabric, and a second functional layer 22 of antibacterial and deodorizing agents is applied to the semi-finished substrate fabric 20a for the wash-resistant functional fabric.

[0021] In this embodiment, the dyeing process of the first functional layer 21 described above is carried out by maintaining the dye solution at a pH value of 4.0, allowing the dye molecules to penetrate uniformly into the fibers, and performing high-temperature and high-pressure dyeing at 130°C for 40 minutes, allowing the dye molecules to penetrate uniformly into the fibers of the dyed fabric 20a, and then dyeing the fabric 20a after dyeing is completed with sodium hydroxide (NaOH) at a pH value of 11 to 12. Hydroxide) at 85°C for 20 minutes during dyeing. Due to the acidic pH value, the pH value of the half-bleached fabric dyed layer fabric is neutralized to be in the range of 5 to 7, which is close to the pH value of human skin. The dyed fabric 20a is removed from the dye bath and washed with water to remove any oil or impurities remaining during the dyeing process. After that, it is dried in a dryer at a high temperature of 150°C and a speed of 20 meters per minute to form a dry fabric. This fabric 20a, which serves as the semi-finished base material for the wash-resistant fabric, effectively stabilizes the color fastness of the dyed layer, gives the fabric 20a wash-resistant properties, and prevents discoloration.

[0022] The second functional layer 22 is applied to the surface of the first functional layer 21, is bonded to the first functional layer 21, and contains the antibacterial and deodorizing agent X. After the above-mentioned greige fabric 20 is pretreated, the dyed fabric 20a of the half-bleached fabric is dried and shaped, and then the coating process performed on the first functional layer 21 on the fabric 20a of the semi-finished base material of the wash-resistant functional fabric that has been placed in advance will be described in detail below.

[0023] The antibacterial and deodorizing agent X is a silver ion antibacterial agent, and in this embodiment, silver ions (RUCO-BAC AGP) from German Rudolf are used, which are bonded to the fabric surface of the fabric 20a, which is the semi-finished base material for the wash-resistant fabric, and the silver ion antibacterial agent is absorbed and activated without being dissolved in water in the fabric 20a, and is not transferable. The silver ions in the silver ion antibacterial agent penetrate the cellular DNA of pathogenic bacteria, preventing the cells from metabolizing and replicating, and killing them. This also inhibits the protein formation of viruses, preventing them from parasitizing and replicating in the host, thereby achieving a sterilizing effect.

[0024] Next, the antibacterial and deodorizing agent of the second functional layer 22 is applied to the surface of the fabric 20a, which is the base material for the semi-finished wash-resistant fabric of the first functional layer 21, by a coating method. The fabric is then passed through a dryer twice at a high temperature of 150°C and a speed of 10 meters per minute, so that the molecular chains of the fibers inside the fabric 20a are expanded at high temperature, allowing the antibacterial agent (RUCO-BAC AGP) of the antibacterial and deodorizing agent to effectively penetrate and uniformly penetrate the fibers of the fabric 20a. The fabric is then molded at high temperature and low speed, and the antibacterial and deodorizing agent X is uniformly coated and completely penetrates the fabric 20a, saturating and absorbing the fibers of the fabric 20a. After cooling, as the temperature decreases and the fabric is cooled, it is completely embedded in the molecular chains of the fibers to form the second functional layer 22, and the bacteriostatic, deodorizing, and wash-resistant semi-finished fabric 2 is simultaneously molded. This prevents the wash-resistant antibacterial and deodorizing functions of the finished functional fabric 2 from weakening after washing with water, and the silver ion antibacterial agent in the antibacterial and deodorizing agent X causes bacteria to migrate onto the antibacterial fabric through the evaporation of human sweat, resulting in a sterilizing effect and preventing bacterial growth, thereby obtaining the wash-resistant functional fabric finished product 2 with antibacterial and deodorizing effects. At the same time, the source is sterilized to prevent the generation of ammonia, preventing the generation of odors such as isovaleric acid, acetic acid, and butyric acid, thereby effectively achieving the antibacterial and deodorizing effects that prevent the odor of sweat.

[0025] The wash-resistant functional fabric 2 described above is fabricated into a wearable or body-worn antibacterial and deodorizing textile. For example, it can be applied to sportswear (2A in Fig. 5), training pants (2B in Fig. 6), sports bras (2C in Fig. 7), and masks (2D in Fig. 8). When worn or worn by a user, odor-causing bacteria migrate from sweat or breath vapor to the fabric via evaporation. The silver ions in the silver ion antibacterial agent in the fabric penetrate the bacterial wall of the pathogenic bacteria, destroying the cell's DNA and preventing the cell from metabolizing and replicating, resulting in its death. This effectively inhibits viral protein formation and prevents the virus from parasitizing and replicating in the host, achieving a sterilizing effect. At the same time, the moisture-wicking and sweat-wicking agent in the fabric effectively absorbs and releases sweat, drying the skin and inhibiting bacterial growth, resulting in a wash-resistant fabric with antibacterial and deodorizing effects.

[0026] Although the preferred embodiments of the present invention have been disclosed above so that those skilled in the art can understand, they are not intended to limit the scope of the present invention. Various changes and modifications can be made within the scope of the present invention. Therefore, the scope of the claims for utility model registration of the present invention should be broadly interpreted to include such changes and modifications. [Explanation of symbols]

[0027] 2 Finished product 2A Sportswear 2B training pants 2C Sports Bra 2D Mask 20 Gray fabric 20a Woven 21 First functional layer 22 Second Functional Layer X Antibacterial Deodorizer

Claims

1. A wash-resistant functional fabric having antibacterial and deodorizing effects, comprising a greige fabric, a first functional layer, and a second functional layer, The gray fabric is made of a woven material of polyester and spandex, and a highly elastic knit fabric is formed by interlacing warp and weft yarns, and the fabric is scoured in a pre-treatment to form a half-bleached fabric, and then dyed to form a dyed fabric. The first functional layer covers the dyed fabric fabric after dyeing treatment on the half-bleached fabric after scouring the gray fabric, and combines with it to form a dyed fabric fabric of a semi-finished product fabric of a wash-resistant functional fabric substrate, forming a wash-resistant layer of the dyed layer; the second functional layer is a bacteriostatic and deodorizing layer that is applied to a surface of the first functional layer and is bonded to the first functional layer, the bacteriostatic and deodorizing layer containing a bacteriostatic and deodorizing agent, and the bacteriostatic and deodorizing agent is a silver ion antibacterial agent; The grey fabric is pre-treated by placing it in a dye bath, where it is pre-shrunk and scoured, and surface impurities are removed before being removed from the dye bath to form the half-bleached fabric. After the half-bleached fabric is placed in the dye bath and dyed, the dyed fabric is immersed in a dye solution with an acidic pH value to allow the dye molecules to fully penetrate into the fabric fibers. After the dyed fabric is removed from the dye bath, the pH value of the fabric is neutralized with sodium hydroxide and the fabric is dried and shaped to stabilize the color fastness. A fabric for a semi-finished base material of a wash-resistant fabric having the first functional layer is formed on the surface. The antibacterial and deodorizing agent is applied to the fabric for the semi-finished base material of the wash-resistant fabric, and the second functional layer is formed at a high temperature and low speed, covering it evenly and allowing it to completely penetrate into the fabric fibers. After cooling, the finished wash-resistant fabric with the antibacterial and deodorizing functional layer is obtained.

2. The wash-resistant functional fabric having antibacterial and deodorizing effects according to claim 1, characterized in that the silver ion antibacterial agent of the antibacterial and deodorizing agent is active on fabrics and does not have migration properties.

3. 3. The wash-resistant functional fabric having antibacterial and deodorizing effects according to claim 2, wherein the silver ion antibacterial agent of the antibacterial and deodorizing agent is a silver ion (RUCO-BAC AGP) manufactured by Rudolph GmbH of Germany.

4. The wash-resistant functional fabric with antibacterial and deodorizing effects described in claim 1 is characterized in that an emulsifier and a chelating agent are added to the dye solution of the gray fabric, and the surface of the fabric is immersed and refined by circulating hot water at 90°C to prevent the accumulation of impurities on the surface of the fabric and metal ions such as calcium, magnesium, and iron in the water, and then dyed at a high temperature of 130°C under high pressure.

5. The wash-resistant functional fabric with antibacterial and deodorizing effects described in claim 1, characterized in that the first functional layer is a woven fabric that is the semi-finished base material of the wash-resistant functional fabric, and the pH value of the fabric after dyeing is completed and it is soaked and neutralized is 5 to 7.

6. The wash-resistant functional fabric with antibacterial and deodorizing effects according to claim 1, characterized in that the greige fabric is woven into a single-sided knitted fabric or a double-sided knitted fabric.