An antibacterial fabric and a method for producing the same

Abstract

The application discloses an antibacterial fabric and a production method thereof, and relates to the technical field of antibacterial fabrics. The method comprises the following steps: treating a prepared fabric, drying the fabric after soaping, obtaining a pretreated clean fabric, preparing a silver ion antibacterial solution, infiltrating the fabric with the silver ion solution, and naturally drying the fabric to obtain a preliminarily antibacterial fabric. The method can increase the space for adsorbing silver ions on the surface of the fabric in a large area through the method of raising the fabric surface. The fabric is formed by weaving cotton fibers in the warp and weft directions, and has certain air permeability. Therefore, when the raised fabric is sandwiched between two fabrics, even if the antibacterial materials on the two outer fabrics are consumed, there is still enough antibacterial fabric on the inner fabric, and the silver ions can pass through the gap between the fabrics, so that the service life of the antibacterial fabric is ensured, and the concentration of the silver ion antibacterial fabric in a unit space is increased.

Description

Technical Field

[0001] This invention relates to the field of antibacterial fabric technology, specifically to an antibacterial fabric and its production method. Background Technology

[0002] Application No. 201310745540.8 discloses an antibacterial fabric and its production method, which is moisture-wicking, quick-drying, and has long-lasting antibacterial properties. The characteristic of this long-lasting antibacterial fabric is that it is woven from hydrophilic yarns containing antibacterial agents and hydrophobic yarns, forming a fabric with an inner layer and an outer layer, wherein the inner layer is hydrophilic and the outer layer is hydrophobic.

[0003] The antibacterial properties of antibacterial fabrics are mainly provided by the antibacterial materials in the fabric. Since the above-mentioned fabric does not provide specific antibacterial materials, the antibacterial properties of the fabric are difficult to guarantee. In addition, it has a high degree of hydrophobicity with the outer layer, so the antibacterial materials are difficult to adhere to the fabric for a long time, making it difficult to guarantee the antibacterial properties of the fabric for a long time.

[0004] The antibacterial fabric and its production method, authorized by publication number CN104404773B, discloses that the fabric is a pure cotton fabric, comprising at least a bottom fabric and a surface material woven on the bottom fabric; wherein, nano-silver is fixed in the bottom fabric by wax. This invention provides a low-cost, simple-to-process antibacterial fabric, which also possesses advantages such as strong unidirectional moisture wicking, good breathability, and high comfort, resulting in significant economic benefits.

[0005] The aforementioned fabric uses wax to fix nano-silver, but wax is not very stable. In hot weather, the fabric with added wax is prone to wrinkling and does not easily regain its shape, significantly reducing the comfort of use. Furthermore, the wax on the fabric is applied on top, making it unsuitable for use as clothing, bedding, or other daily items that come into contact with the skin.

[0006] In view of the above situation, the present invention provides a novel antibacterial fabric and a method for producing it to solve the above problems. Summary of the Invention

[0007] The purpose of this invention is to provide an antibacterial fabric and its production method to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a method for producing an antibacterial fabric, comprising the following steps:

[0009] Step 1: Process the woven fabric, and wash and dry it to obtain a pre-treated clean fabric.

[0010] Step 2: Prepare the silver ion antibacterial solution;

[0011] Step 3: Impregnate the fabric with silver ion solution and allow it to dry naturally to obtain a preliminarily antibacterial fabric;

[0012] Step 4: Apply a napping treatment to the fabric to increase the nap on the fabric surface;

[0013] Step 5: Spray silver ions and insect repellent onto both sides of the napped fabric.

[0014] Step Six: Add new fabric to the top and bottom sides of the original fabric. The new fabric is also soaked in silver ion solution.

[0015] Step 7: Sew the three layers of fabric together using a knitting sewing technique.

[0016] Preferably, the fabric is made of cotton fiber woven in warp and weft, with a thickness of no more than 0.2 mm. Soap washing is carried out by adding soap to the washing tub and stirring with a machine, and the washing time is no less than 30 minutes.

[0017] The washed fabric is dried in a drying room at a temperature of 50-60 degrees Celsius.

[0018] Preferably, the silver ion antibacterial solution is prepared by mixing silver ions, hydroxypropyl methylcellulose, and deionized water in a ratio of 1:3:6, with a silver ion molar concentration of 0.05-0.5 mol / L. The silver ion antibacterial solution is obtained by adding silver ions and hydroxypropyl methylcellulose to deionized water.

[0019] Preferably, the silver ion antibacterial solution is poured into the cylinder and the pretreated fabric is soaked in the silver ion antibacterial solution for 30-40 minutes before being taken out and dried.

[0020] Preferably, the fabric is rolled on the surface of the fabric by a roller with barbs, which hooks up the nap on the surface of the fabric to achieve a napping effect.

[0021] Preferably, the fabric is sprayed with silver ions and insect repellent spray on its surface using a spray gun. The insect repellent spray is made by mixing artemisia oil, lemon oil and eugenol in a ratio of 6:2:2 using a stirring device.

[0022] Preferably, the gap between the fabrics is reduced by a rolling mill. When the pressure of the rolling mill is 2 kg / cm2 and the load time is 3 min, the three layers of fabric are connected by knitting and sewing after the rolling is completed.

[0023] An antibacterial fabric is produced by the above-mentioned method for producing antibacterial fabrics.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] This antibacterial fabric and its production method involve treating the fabric surface with napping, which greatly increases the space for the fabric to absorb silver ions. The fabric is made of cotton fiber woven in warp and weft, and has a certain degree of breathability. Therefore, when the napped fabric is sandwiched between two fabrics, even if the antibacterial materials on the outer two fabrics are used up, there will still be enough antibacterial material on the inner fabric, which is sufficient to allow silver ions to pass through the gaps between the fabrics, ensuring the service life of the antibacterial quilt and increasing the concentration of silver ions and other antibacterial materials in a unit space. It is highly practical and suitable for promotion.

[0026] Meanwhile, the antibacterial fabric and its production method mainly improve the fabric surface by napping and attaching silver ion antibacterial fabric, without changing the fabric structure, which can effectively ensure the comfort of the fabric itself and avoid wrinkles. At the same time, it does not add materials with weak stability, and can ensure the usability of the fabric at various temperatures, with good results. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention;

[0028] Figure 2 This is a cross-sectional view of the barrel body of the present invention;

[0029] Figure 3 This is a schematic diagram of the structure of the stirring shaft of the present invention;

[0030] Figure 4 This is a schematic diagram of the structure of the stirring support of the present invention;

[0031] Figure 5 This is a cross-sectional structural diagram showing the positions of the drive device and the feed box of the present invention.

[0032] In the diagram: 1. Barrel body; 2. Connecting pipe; 3. Drive device; 4. Feed box; 5. Support leg; 6. Operator; 11. Annular groove; 12. Ring body; 13. Inner shell; 14. Discharge pipe; 15. Internal gear ring; 16. First gear; 17. Second gear; 18. Stirring shaft; 19. Transmission rod; 181. Stirring main shaft; 182. Adjustable ring body; 183. Stirring bracket; 1831. Fixing part; 1832. Frame body; 1833. U-shaped part; 1834. Stirring body; 1835. Roller; 31. Seat; 32. Servo motor; 33. Drive wheel; 34. Output rod; 35. Helical gear; 36. Driven wheel; 41. Box body; 42. Feed inlet; 43. Screw conveyor roller. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Textiles, as essential functional products for human life, readily absorb and contaminate microorganisms due to their microporous structure. Combined with the suitable temperature and humidity of the human body surface, and secretions such as oils and sweat, these conditions create favorable environments for microbial reproduction and growth. Therefore, textiles often require antibacterial properties. Currently, the common method for preparing antibacterial textiles is to apply silver ion antibacterial agents to the fabric through impregnation. While this significantly improves the antibacterial durability of the fabric, the duration of silver ion presence cannot be guaranteed, resulting in insufficient long-lasting antibacterial protection and reduced fabric comfort.

[0035] like Figures 1-3 As shown, the present invention provides a technical solution: a method for producing an antibacterial fabric, comprising the following steps:

[0036] Step 1: Process the woven fabric, and wash and dry it to obtain a pre-treated clean fabric.

[0037] Step 2: Prepare the silver ion antibacterial solution;

[0038] Step 3: Impregnate the fabric with silver ion solution and allow it to dry naturally to obtain a preliminarily antibacterial fabric;

[0039] Step 4: Apply a napping treatment to the fabric to increase the nap on the fabric surface;

[0040] Step 5: Spray silver ions and insect repellent onto both sides of the napped fabric.

[0041] Step Six: Add new fabric to the top and bottom sides of the original fabric. The new fabric is also soaked in silver ion solution.

[0042] Step 7: Sew the three layers of fabric together using a knitting sewing technique.

[0043] To ensure the smooth implementation of this embodiment, it is necessary to understand that the fabric is made of cotton fiber warp and weft knitting, with a thickness of no more than 0.2mm. Soap washing is carried out by adding soap to the washing tub and stirring with a machine, and the washing time is no less than 30 minutes.

[0044] The washed fabric is dried in a drying room at a temperature of 50-60 degrees Celsius.

[0045] By treating the fabric surface with napping, the space for the fabric to absorb silver ions can be greatly increased. Since the fabric is made of cotton fiber warp and weft weave, it has a certain degree of breathability. Therefore, when the napped fabric is sandwiched between two fabrics, even if the antibacterial materials on the two outer fabrics are used up, there will still be enough antibacterial material on the inner fabric.

[0046] The performance of the fabrics produced in steps one through seven of the embodiments and the silver ion antibacterial fabrics obtained by the control group production method will be tested. The test index is the amount of silver ions attached per unit. The above tests will be performed on the produced silver ion antibacterial fabrics.

[0047] The fabric pieces produced through steps one and seven are illustrated in the following four examples, which represent the number of silver ions per unit of fabric piece in different processes.

[0048] Table 1

[0049] project <![CDATA[cm 3 / each]]> Fabric piece 1 400 Cloth Piece 2 1280 Cloth Piece 3 1330 Cloth piece 4 1240

[0050] Fabric piece 1 is a fabric piece with ordinary silver ion spraying;

[0051] Fabric piece 2 is a fabric piece that has been impregnated with silver ions;

[0052] Fabric piece 3 is a fabric piece obtained by impregnating the fabric piece with silver ions and then spraying it with silver ions to form a nap.

[0053] Fabric piece 4 is a composite fabric piece obtained by first impregnating the fabric piece with silver ions, then applying silver ions to the fabric piece to create a nap, and finally sewing the three layers of fabric pieces together.

[0054] Meanwhile, the experiment showed that the fabric pieces that were wetted with silver ions and then napped and sprayed with silver ions contained the highest number of silver ions per unit, and did not exceed the human body's tolerance standard. Fabric pieces 2, 3, and 4 all had good antibacterial effects.

[0055] In addition, we conducted experiments based on the duration of silver ions in the antibacterial fabric. The experiment measured the number of silver ions per unit of fabric in the antibacterial fabric at a high temperature of 60°C and a speed of 20 m / s.

[0056] project 5 days 10 days 30 days 60 days Fabric piece 1 380 260 105 20 Cloth Piece 2 1200 1180 1008 890 Cloth Piece 3 1270 1125 1000 890 Cloth piece 4 1220 1190 1125 1045

[0057] The fabric sheet prepared according to this embodiment can retain the antibacterial silver ions in the fabric sheet for a longer period of time, and has better antibacterial effect and durability.

[0058] To ensure the smooth implementation of this embodiment, it is necessary to understand that the silver ion antibacterial solution is prepared by mixing silver ions, hydroxypropyl methylcellulose, and deionized water in a ratio of 1:3:6, with a silver ion molar concentration of 0.05-0.5 mol / L. The silver ion antibacterial solution is obtained by adding silver ions and hydroxypropyl methylcellulose to deionized water. Highly effective bactericidal and antibacterial products often contain silver ions and silver compounds, such as silver ion gels, silver ion dressings, and silver ion antibacterial socks. Under ultraviolet irradiation, these silver ion products form a black silver precipitate due to the reduction of silver ions, which not only affects the appearance but also the bactericidal and antibacterial effect. Furthermore, the silver ions used in these products have very low viscosity; adding them to liquids such as paints will reduce the viscosity of the paint, making coating difficult and requiring the addition of thickeners, thus increasing costs. Moreover, many thickeners themselves contain toxic substances harmful to the human body, affecting human health. Using the above ratio can obtain a silver ion antibacterial solution with suitable viscosity and long-lasting and stable antibacterial properties, protecting human health.

[0059] To ensure the smooth implementation of this embodiment, it is necessary to understand that the silver ion antibacterial solution is poured into the container and the pre-treated fabric is soaked in the silver ion antibacterial solution. After soaking for 30-40 minutes, the fabric is taken out and dried. The soaped fabric is then soaked in the silver ion antibacterial solution. Due to its fiber structure, the fabric can fully contact the silver ion solution.

[0060] To ensure the smooth implementation of this embodiment, it is necessary to understand that the fabric is rolled on the surface by a roller with barbs, and the roller hooks up the nap on the surface of the fabric to achieve the napping effect.

[0061] To ensure the smooth implementation of this embodiment, it is necessary to understand that silver ions and insect repellent spray are sprayed onto the fabric surface using a spray gun. The insect repellent spray is made by mixing artemisia essential oil, lemon essential oil and eugenol in a 6:2:2 ratio using a stirring device.

[0062] To achieve effective mixing, a mixing device is used. The mixing device includes a barrel 1. A connecting pipe 2 is fixedly installed on the upper right side of the barrel 1 to ensure the normal transmission of raw materials. A driving device 3 is provided on the upper left side of the barrel 1 to provide power to various components. A feed box 4 is fixedly installed on the upper end of the connecting pipe 2 to perform preliminary processing of the raw materials. An operator 6 is fixedly installed on the rear side of the middle of the outer surface of the barrel 1. Three support legs 5 are fixedly installed on the lower end of the barrel 1.

[0063] To achieve better mixing, such as Figure 2As shown, an annular groove 11 is provided on the lower inner wall of the barrel 1, and an annular body 12 is provided in the annular groove 11. An inner shell 13 is fixedly installed on the upper end of the annular body 12. A discharge pipe 14 is fixedly installed in the middle of the lower end of the inner shell 13. An internal gear ring 15 is fixedly installed on the upper end of the inner shell 13. A first gear 16 is meshed inside the internal gear ring 15. The first gear 16 is rotatably installed on the upper inner wall of the barrel 1. A second gear 17 is meshed on the right side of the first gear 16. A stirring shaft 18 is fixedly installed on the lower end of the second gear 17. A transmission rod 19 that penetrates the upper inner wall of the barrel 1 is fixedly installed in the middle of the upper end of the second gear 17.

[0064] Under the meshing action of the gears, the transmission rod 19 will drive the first gear 16 to rotate, and the first gear 16 will drive the internal gear ring 15 to rotate, and the internal gear ring 15 will drive the inner shell 13 to rotate. The rotation direction of the inner shell 13 is opposite to that of the second gear 17. The ring body 12 is set in the annular groove 11 to ensure that the inner shell 13 can rotate normally, and at the same time reduce friction. The stirring shaft 18 therein will rotate in the same direction as the second gear 17.

[0065] In order to stir, such as Figure 3 As shown, the stirring shaft 18 includes a stirring main shaft 181. Two adjustable rings 182 are fixedly installed on the outer surface of the stirring main shaft 181. Several stirring supports 183 are fixedly installed on the outer surface of the two adjustable rings 182 in an array. The position of the stirring supports 183 can be changed by adjusting the height of the adjustable rings 182.

[0066] To elaborate further, such as Figure 4 As shown, the stirring support 183 includes a fixing part 1831. A frame body 1832 is fixedly installed at one end of the fixing part 1831 away from the stirring main shaft 181. A U-shaped part 1833 is fixedly installed at the middle of one end of the frame body 1832 away from the fixing part 1831. Two stirring bodies 1834 are rotatably installed on the inner wall of the frame body 1832. A roller 1835 is rotatably installed on the inner wall of the U-shaped part 1833.

[0067] When the stirring shaft 18 rotates, the two stirring bodies 1834 in the frame 1832 will rotate to better mix, while the roller 1835 is tightly attached to the inner wall of the inner shell 13 to ensure stability during rotation.

[0068] To provide power to the device, such as Figure 5 As shown, the drive device 3 includes a base 31, which is fixedly installed on the upper part of the outer surface of the left side of the barrel 1. A servo motor 32 is fixedly installed on the upper end of the base 31. A drive wheel 33 is fixedly installed on the output end of the servo motor 32 by a coupling. An output rod 34 is fixedly installed on the middle of the right end of the drive wheel 33. Two meshing helical gears 35 are fixedly installed on the right end of the output rod 34. The helical gear 35 located on the lower side is fixedly installed on the upper end of the transmission rod 19.

[0069] Start the servo motor 32 to drive the drive wheel 33 and the output rod 34 to rotate. The drive wheel 33 will drive the driven wheel 36 to rotate via a belt. The output rod 34 will drive the transmission rod 19 and the second gear 17 to rotate via two meshing helical gears 35.

[0070] In order to perform preliminary processing on the raw materials, such as Figure 5 As shown, the feed box 4 includes a box body 41. A feed inlet 42 is fixedly installed on the upper left side of the box body 41. A spiral conveying roller 43 is provided in the inner cavity of the box body 41. The left end of the spiral conveying roller 43 passes through the inner wall of the box body 41 and is fixedly installed with a driven wheel 36. During the rotation of the driven wheel 36, it will drive the spiral conveying roller 43 inside the box body 41 to rotate, so that the raw materials in the box body 41 that pass through the feed inlet 42 will be initially processed.

[0071] It should be noted that the circuit connection method and control method of the servo motor 32 and the operator 6 in this invention are conventional designs, and will not be described in detail in this invention.

[0072] When using the device, the servo motor 32 is started to drive the drive wheel 33 and the output rod 34 to rotate. The drive wheel 33 drives the driven wheel 36 to rotate via a belt. During the rotation of the driven wheel 36, the spiral conveyor roller 43 inside the housing 41 will rotate, and the raw materials in the housing 41 will undergo preliminary processing through the feed inlet 42. The output rod 34 drives the transmission rod 19 and the second gear 17 to rotate via two meshing helical gears 35. Under the meshing action of the gears, the transmission rod 19 drives the first gear 16 to rotate, and the first gear 16 drives the internal gear ring 15 to rotate. The internal gear ring 15 drives the inner shell 13 to rotate. The rotation direction of the inner shell 13 is opposite to that of the second gear 17. The ring body 12 is located in the annular groove 11 to ensure that the inner shell 13 can rotate normally and reduce friction. The stirring shaft 18 rotates in the same direction as the second gear 17. The position of the stirring support 183 can be changed by adjusting the height of the adjustable ring body 182. When the stirring shaft 18 rotates, the two stirring bodies 1834 in the frame body 1832 will rotate to better mix. The roller 1835 is tightly attached to the inner wall of the inner shell 13 to ensure stability during rotation.

[0073] To ensure the smooth implementation of this embodiment, it is necessary to understand that the gap between the fabrics is reduced by a rolling mill. When the pressure of the rolling mill is 2 kg / cm2, the load time is 3 minutes. After the rolling is completed, the three layers of fabric are connected by knitting and sewing. After being pressed by the rolling mill, the gap between the fabrics is reduced, which can ensure the consistency between the three layers of fabric and the thinness after sewing. In addition, the connection between the three layers of fabric by knitting and sewing can effectively ensure the breathability of the fabric.

[0074] An antibacterial fabric is produced by the above-mentioned method for producing antibacterial fabrics.

[0075] Although embodiments of the 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 invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A method for producing an antibacterial fabric, characterized in that, Includes the following steps: Step 1: Process the woven fabric, and wash and dry it to obtain a pre-treated clean fabric. Step 2: Prepare the silver ion antibacterial solution; Step 3: Impregnate the fabric with silver ion antibacterial solution and allow it to dry naturally to obtain a preliminarily antibacterial fabric; Step 4: Apply a napping treatment to the preliminarily antibacterial fabric to increase the nap on the fabric surface. Roll a roller with barbs on the fabric surface to hook up the nap and achieve the napping effect. Step 5: Spray silver ions and insect repellent onto both sides of the napped fabric. Step Six: Add new fabric to the top and bottom sides of the original fabric. The new fabric is also soaked in silver ion antibacterial solution. Step 7: Reduce the gap between the fabrics using a rolling mill, with a rolling mill pressure of 2 kg / cm². 2 At that time, the load time is 3 minutes. After rolling, the three layers of fabric are sewn together by knitting and sewing process. Silver ions on the inner fabric can pass through the gaps between the fabric layers.

2. The method for producing an antibacterial fabric according to claim 1, characterized in that: The fabric is made of cotton fiber woven in warp and weft, with a thickness of no more than 0.2mm. The soap washing is carried out by adding soap to the washing tub and stirring with a machine, with a washing time of no less than 30 minutes. The washed fabric is dried in a drying room at a temperature of 50-60℃.

3. The method for producing an antibacterial fabric according to claim 1, characterized in that: The process of impregnating the fabric with silver ion antibacterial solution involves pouring the silver ion antibacterial solution into a container and immersing the pre-treated clean fabric in the solution for 30-40 minutes, then removing it and air-drying it.

4. An antibacterial fabric, which is obtained by the production method of the antibacterial fabric according to any one of claims 1-3.

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