Nano-silver antibacterial knitted fabric and preparation method thereof

Abstract

This invention discloses a nano-silver antibacterial knitted fabric and its preparation method, relating to the field of nano-silver antibacterial fabric technology. It includes a base yarn and functional yarns. The knitted fabric is made by twisting one functional yarn and three base yarns together. The base yarns include modal fiber, Tencel, and wool fiber; the functional yarns include nano-silver fiber, kapok fiber, chitosan fiber, and bamboo fiber. The beneficial effects of this invention are: by using two types of yarns with different functions to form multi-strand yarns, and using the combined yarns for weaving, a fabric is formed. This fabric continuously releases nano-silver particles through the nano-silver fibers, making the fabric washable and providing long-lasting antibacterial efficacy. Simultaneously, the use of kapok fiber, chitosan fiber, and bamboo fiber effectively protects against germs in daily life, thus playing a bacteriostatic and bactericidal role. Compared with currently used knitted fabrics, it is safer to use.

Description

Technical Field

[0001] This invention relates to the field of nano-silver antibacterial fabric technology, specifically to a nano-silver antibacterial knitted fabric and its preparation method. Background Technology

[0002] Knitted fabric is a type of fabric formed by bending yarn into loops and interlocking them using knitting needles. The difference between knitted and woven fabrics lies in the form of the yarn within the fabric. Knitted fabrics are widely used in clothing fabrics and linings, home textiles, and other products, and are loved by consumers. Depending on the knitting method, different patterns and textures can be created on the surface of knitted fabrics, greatly enhancing the aesthetics of clothing. Knitted fabrics have good elasticity, moisture absorption and breathability, and are comfortable and warm, making them the most widely used fabric for children's clothing. The raw materials are mainly natural fibers such as cotton, linen, silk, and wool, but also include chemical fibers such as nylon, acrylic, and polyester. Knitted fabrics offer rich variations in structure, numerous varieties, and unique appearances. In the past, they were mainly used for underwear and T-shirts. However, with the development of the knitting industry and the emergence of new finishing processes, the performance of knitted fabrics has greatly improved, making them suitable for almost all categories of children's clothing. However, because knitted fabrics are only woven from a single layer of yarn, compared to currently used composite fabrics, they cannot effectively prevent bacterial entry. Therefore, we propose a nano-silver antibacterial knitted fabric and its preparation method. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a nano-silver antibacterial knitted fabric and its preparation method, thus solving the problems mentioned in the background section.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: a nano-silver antibacterial knitted fabric, comprising a base yarn and a functional yarn, wherein the knitted fabric is made by twisting one functional yarn and three base yarns together in a parallel twisting manner;

[0005] The substrate single thread includes modal fiber, Tencel, and wool fiber;

[0006] The ratio of modal fiber, Tencel, and wool fiber in the substrate single thread is 15-30:5-15:65-75;

[0007] The functional single thread includes nano-silver fiber, kapok fiber, chitosan fiber, and bamboo fiber;

[0008] Nano-silver antibacterial fiber's antibacterial properties rely on the continuous release of nano-silver particles. Fabrics made using this additive method are washable and have long-lasting antibacterial efficacy. It can be applied to everyday consumer goods, including uniforms, casual wear, shirts, underwear, pajamas, bedding, and handkerchiefs; suitable for bedding, shirts, socks, and underwear for patients with neurodermatitis; and in medical and hygiene products.

[0009] Kapok fibers utilize a large, hollow structure with closed ends, which is unfavorable for the survival of anaerobic bacteria. Its outer wall contains a natural, bitter substance that detaches during wear, thus achieving an antibacterial effect.

[0010] Chitosan fiber is a fiber made from chitin after treatment with concentrated alkali. It has a good affinity for proteins, is non-toxic, and has a good antibacterial effect against various bacteria and fungi. It is often used in medical dressings.

[0011] Bamboo fiber is extracted from naturally grown bamboo and has a long-lasting and highly effective natural antibacterial and bactericidal effect.

[0012] The ratio of nano-silver fiber, kapok fiber, chitosan fiber, and bamboo fiber in the functional single thread is 5:55-65:15-25:10-20.

[0013] In this invention, the ratio of modal fiber, Tencel, and wool fiber in the substrate single thread is 20:10:70.

[0014] Furthermore, in this invention, the ratio of nano-silver fiber, kapok fiber, chitosan fiber, and bamboo fiber in the functional single thread is 5:60:20:15.

[0015] A method for preparing a nano-silver antibacterial knitted fabric includes the following steps:

[0016] S1. Raw material preparation: The step of pre-treating the raw materials needed to make the base material single line and functional single line according to their specific gravity.

[0017] S2. Single-strand wire production: The steps for producing base material single-strand wires and functional single-strand wires according to the production requirements;

[0018] S3, Wire braiding: The step of taking the finished base single wire and functional single wire and twisting them into multi-strand wires by twisting them together.

[0019] S4. Fabric weaving: The steps of weaving multiple strands of yarn into fabrics of different styles and thicknesses according to different weaving requirements;

[0020] S5. Fabric post-processing: The steps of cleaning and cutting the woven fabric;

[0021] S6. Fabric cutting and edge sealing: The step of sealing the edges of the cut fabric using a sewing machine.

[0022] Furthermore, in this invention, S2, the fabrication of single strands includes the fabrication of base material single strands and the fabrication of functional single strands;

[0023] The fabrication of the substrate single line includes the following steps:

[0024] S211. Raw material processing: Take out the corresponding weights of modal fiber, Tencel and wool fiber according to the proportion, and clean the modal fiber, Tencel and wool fiber.

[0025] S212. Drying raw materials: Place the cleaned raw materials in a dry place to dry until they are dry and fluffy;

[0026] S213, Raw material pin comb: comb the clean wool into strips of wool, and the combing machine combs off some of the grass and impurities in the wool, combing the clean wool into a net-like structure;

[0027] S214, Twisting and Shaping: Wool fibers are stretched and thinned while being twisted, and Modal and Tencel fibers are added in the corresponding proportions during the twisting process.

[0028] S215. Dyeing the forming thread: The forming thread is bleached and dyed to the required color according to usage requirements. Further, the fabrication of the functional single thread in this invention includes the following steps:

[0029] S221. Raw material processing: Take out the corresponding weights of nano-silver fiber, kapok fiber, chitosan fiber and bamboo fiber according to the proportion, and clean the nano-silver fiber, kapok fiber, chitosan fiber and bamboo fiber.

[0030] S222. Drying raw materials: Place the cleaned raw materials in a dry place to dry until they are dry and fluffy;

[0031] S223, Twisting and Shaping: The kapok fibers are stretched and thinned while being twisted, and nano-silver fibers, chitosan fibers, and bamboo fibers are added in the corresponding proportions during the twisting process.

[0032] S224. Forming line dyeing: According to the usage requirements, the forming line is bleached and dyed with dye to the corresponding required color.

[0033] Furthermore, in this invention, the weaving methods in S4, fabric weaving include pique, willow, styling, ribbed, valley wave, single side, four-sided, round, three-sided, ribbed, picking, quilting, wavy, wavy, rest, wavy machine hanging, and wavy.

[0034] Furthermore, in the present invention, the ratio of base material single thread to functional single thread in the wire braiding in S3 is 3:1.

[0035] Furthermore, in the present invention, step S6, the fabric cutting and finishing process, involves folding the fabric edge inward and sewing the folded portion using a sewing machine.

[0036] This invention provides a nano-silver antibacterial knitted fabric and its preparation method, which has the following beneficial effects:

[0037] 1. This nano-silver antibacterial knitted fabric and its preparation method involve using two types of yarns with different functions to form multi-strand yarns, and then weaving them together to form the fabric. This fabric continuously releases nano-silver particles through nano-silver fibers, making the fabric washable and with long-lasting antibacterial efficacy. It also utilizes kapok fiber, chitosan fiber, and bamboo fiber to effectively protect against germs in daily life, thus playing a role in inhibiting and killing bacteria. Compared with currently used knitted fabrics, it is safer and more convenient to use. Attached Figure Description

[0038] Figure 1 It is a structural schematic diagram of the present invention.

[0039] In the diagram: 1. Substrate single line; 2. Functional single line. Detailed Implementation

[0040] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0041] Please see Figure 1 The present invention provides a technical solution: a nano-silver antibacterial knitted fabric, comprising a base single yarn 1 and a functional single yarn 2, wherein the knitted fabric is made by twisting one functional single yarn 2 and three base single yarns 1 together in a twisting manner.

[0042] The base material single thread 1 includes modal fiber, Tencel, and wool fiber;

[0043] The ratio of modal fiber, Tencel, and wool fiber in substrate single thread 1 is 15-30:5-15:65-75;

[0044] Functional single-line 2 includes nano-silver fiber, kapok fiber, chitosan fiber, and bamboo fiber;

[0045] Nano-silver antibacterial fiber's antibacterial properties rely on the continuous release of nano-silver particles. Fabrics made using this additive method are washable and have long-lasting antibacterial efficacy. It can be applied to everyday consumer goods, including uniforms, casual wear, shirts, underwear, pajamas, bedding, and handkerchiefs; suitable for bedding, shirts, socks, and underwear for patients with neurodermatitis; and in medical and hygiene products.

[0046] Kapok fibers utilize a large, hollow structure with closed ends, which is unfavorable for the survival of anaerobic bacteria. Its outer wall contains a natural, bitter substance that detaches during wear, thus achieving an antibacterial effect.

[0047] Chitosan fiber is a fiber made from chitin after treatment with concentrated alkali. It has a good affinity for proteins, is non-toxic, and has a good antibacterial effect against various bacteria and fungi. It is often used in medical dressings.

[0048] Bamboo fiber is extracted from naturally grown bamboo and has a long-lasting and highly effective natural antibacterial and bactericidal effect.

[0049] The ratio of nano-silver fiber, kapok fiber, chitosan fiber, and bamboo fiber in functional single line 2 is 5:55-65:15-25:10-20.

[0050] In particular, the ratio of modal fiber, Tencel, and wool fiber in substrate single thread 1 is 20:10:70.

[0051] In functional single-line 2, the ratio of nano-silver fiber, kapok fiber, chitosan fiber, and bamboo fiber is 5:60:20:15.

[0052] A method for preparing a nano-silver antibacterial knitted fabric includes the following steps:

[0053] S1. Raw material preparation: The steps of pre-treating the raw materials required for making the base material single line 1 and the functional single line 2 according to their specific gravity.

[0054] S2. Single-strand wire production: The steps for producing the base material single-strand wire 1 and the functional single-strand wire 2 according to the production requirements;

[0055] S3, Wire braiding: The step of taking the completed base material single wire 1 and functional single wire 2 as a group according to the ratio and twisting them into multi-strand wires by twisting.

[0056] S4. Fabric weaving: The steps of weaving multiple strands of yarn into fabrics of different styles and thicknesses according to different weaving requirements;

[0057] S5. Fabric post-processing: The steps of cleaning and cutting the woven fabric;

[0058] S6. Fabric cutting and edge sealing: The step of sealing the edges of the cut fabric using a sewing machine.

[0059] Among them, S2, the production of single-strand wire includes the production of base material single-strand wire 1 and the production of functional single-strand wire 2;

[0060] The fabrication of substrate single line 1 includes the following steps:

[0061] S211. Raw material processing: Take out the corresponding weights of modal fiber, Tencel and wool fiber according to the proportion, and clean the modal fiber, Tencel and wool fiber.

[0062] S212. Drying raw materials: Place the cleaned raw materials in a dry place to dry until they are dry and fluffy;

[0063] S213, Raw material pin comb: comb the clean wool into strips of wool, and the combing machine combs off some of the grass and impurities in the wool, combing the clean wool into a net-like structure;

[0064] S214, Twisting and Shaping: Wool fibers are stretched and thinned while being twisted, and Modal and Tencel fibers are added in the corresponding proportions during the twisting process.

[0065] S215. Forming Line Dyeing: The forming line is dyed to the required color according to usage requirements. The fabrication of functional single line 2 includes the following steps:

[0066] S221. Raw material processing: Take out the corresponding weights of nano-silver fiber, kapok fiber, chitosan fiber and bamboo fiber according to the proportion, and clean the nano-silver fiber, kapok fiber, chitosan fiber and bamboo fiber.

[0067] S222. Drying raw materials: Place the cleaned raw materials in a dry place to dry until they are dry and fluffy;

[0068] S223, Twisting and Shaping: The kapok fibers are stretched and thinned while being twisted, and nano-silver fibers, chitosan fibers, and bamboo fibers are added in the corresponding proportions during the twisting process.

[0069] S224. Forming line dyeing: According to the usage requirements, the forming line is bleached and dyed with dye to the corresponding required color.

[0070] Among them, S4, the weaving methods in fabric weaving include pique, willow, chicken, lingzhi, valley wave, single side, four flat, original, three flat, rib strip, pick and roll, quilt, flower, wavy, rest, flower machine hanging hair, and tufting.

[0071] In S3, the ratio of base material single wire 1 and functional single wire 2 in wire braiding is 3:1.

[0072] S6, the fabric cutting and finishing step, involves folding the fabric edge inward and sewing the folded part together using a sewing machine.

[0073] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A method for preparing a nano-silver antibacterial knitted fabric, comprising a substrate single yarn (1) and a functional single yarn (2), characterized in that: The knitted fabric is made by twisting together one functional yarn (2) and three base yarns (1) in a parallel twisting manner; The substrate single thread (1) includes modal fiber, Tencel, and wool fiber; The ratio of modal fiber, Tencel, and wool fiber in the substrate single thread (1) is 15-30:5-15:65-75; The functional single thread (2) includes nano-silver fiber, kapok fiber, chitosan fiber, and bamboo fiber; The ratio of nano-silver fiber, kapok fiber, chitosan fiber and bamboo fiber in the functional single line (2) is 5:55-65:15-25:10-20; S1. Raw material preparation: The steps of pre-treating the raw materials required for making the base material single line (1) and functional single line (2) according to their specific gravity. S2. Single-strand wire production: The steps of producing the base material single wire (1) and the functional single wire (2) according to the production requirements; S3, Wire braiding: The completed base material single wire (1) and functional single wire (2) are grouped into a multi-strand wire by twisting together one functional single wire (2) and three base material single wires (1). S4. Fabric weaving: The steps of weaving multiple strands of yarn into fabrics of different styles and thicknesses according to different weaving requirements; S5. Fabric post-processing: The steps of cleaning and cutting the woven fabric; S6. Fabric cutting and edge sealing: The step of sealing the edges of the cut fabric using a sewing machine.

2. The method for preparing a nano-silver antibacterial knitted fabric according to claim 1, characterized in that: The ratio of modal fiber, Tencel and wool fiber in the substrate single thread (1) is 20:10:

70.

3. The method for preparing a nano-silver antibacterial knitted fabric according to claim 1, characterized in that: The ratio of nano-silver fiber, kapok fiber, chitosan fiber and bamboo fiber in the functional single line (2) is 5:60:20:

15.

4. The method for preparing a nano-silver antibacterial knitted fabric according to claim 1, characterized in that: The S2, single-strand wire fabrication includes the fabrication of the base material single wire (1) and the fabrication of the functional single wire (2); The fabrication of the substrate single line (1) includes the following steps: S211. Raw material processing: Take out the corresponding weights of modal fiber, Tencel and wool fiber according to the proportion, and clean the modal fiber, Tencel and wool fiber. S212. Drying raw materials: Place the cleaned raw materials in a dry place to dry until they are dry and fluffy; S213, Raw material pin comb: comb the clean wool into strips of wool, and the combing machine combs off some of the grass and impurities in the wool, combing the clean wool into a net-like structure; S214, Twisting and Shaping: Wool fibers are stretched and thinned while being twisted, and Modal and Tencel fibers are added in the corresponding proportions during the twisting process. S215. Forming line dyeing: According to the usage requirements, the forming line is bleached and dyed with dye to the corresponding required color.

5. The method for preparing a nano-silver antibacterial knitted fabric according to claim 1, characterized in that: The creation of the functional single line (2) includes the following steps: S221. Raw material processing: Take out the corresponding weights of nano-silver fiber, kapok fiber, chitosan fiber and bamboo fiber according to the proportion, and clean the nano-silver fiber, kapok fiber, chitosan fiber and bamboo fiber. S222. Drying raw materials: Place the cleaned raw materials in a dry place to dry until they are dry and fluffy; S223, Twisting and Shaping: The kapok fibers are stretched and thinned while being twisted, and nano-silver fibers, chitosan fibers, and bamboo fibers are added in the corresponding proportions during the twisting process. S224. Forming line dyeing: According to the usage requirements, the forming line is bleached and dyed with dye to the corresponding required color.

6. The method for preparing a nano-silver antibacterial knitted fabric according to claim 1, characterized in that: The weaving methods in fabric weaving mentioned in S4 include pique, willow, styling, ribbed, valley wave, single side, four-sided, round, three-sided, ribbed, picking, quilting, wavy, wavy, rest, wavy machine hanging, and wavy.

7. The method for preparing a nano-silver antibacterial knitted fabric according to claim 1, characterized in that: The ratio of the base material single wire (1) and the functional single wire (2) in the S3 wire braiding is 3:

1.

8. The method for preparing a nano-silver antibacterial knitted fabric according to claim 4, characterized in that: S6, the fabric cutting and finishing step, involves folding the fabric edge inward and sewing the folded part together using a sewing machine.

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