An antibacterial, odor-removing, wrinkle-resistant and antistatic knitted fabric and its preparation method

Abstract

The invention discloses an antibacterial, deodorizing and wrinkle-resistant antistatic knitted fabric, which is obtained by finishing the fabric with an antistatic agent. The fabric comprises the following components by weight: 30-40 parts of polyester fiber, 20-30 parts of cotton fiber and 10-20 parts of graphene fiber; the antistatic agent comprises the following components by weight: 15-25 parts of acrylate emulsion, 10-20 parts of titanium dioxide-graphene mixed powder, 5-10 parts of dispersant, 1-3 parts of coupling agent, 5-15 parts of sodium xylene sulfonate and 40-60 parts of deionized water; the fabric of the invention has good wrinkle resistance, and the antistatic agent is used to finish the fabric so that the antistatic agent adheres to the fabric fibers, thereby reducing the friction coefficient between the fabric fibers and reducing the generation of static charge, so that the fabric has good antistatic performance and antibacterial performance.

Description

Technical Field

[0001] The present invention relates to the technical field of chemical fiber fabrics, and in particular to an antibacterial, odor-removing, wrinkle-resistant and antistatic knitted fabric and a preparation method thereof. Background Art

[0002] A knitted fabric is a fabric formed by bending yarns into loops and interlacing them with each other using knitting needles. The difference between a knitted fabric and a woven fabric lies in the different forms of the yarns in the fabric. Knitting is divided into weft knitting and warp knitting. Knitted fabrics are widely used in clothing fabrics and linings, home textiles and other products, and are loved by the majority of consumers.

[0003] However, due to poor electrical conductivity, knitted fabrics are prone to accumulate static electricity, easily adsorb dust particles and human dandruff in the air, thereby bringing in bacteria, viruses and harmful substances. At the same time, local discharge phenomena will also occur, causing itching and discomfort to the human body. At the same time, static electricity will generate sparks. If there are flammable and explosive dangerous goods nearby, it is very likely to cause danger.

[0004] Therefore, there is an urgent need for an antibacterial, odor-removing, wrinkle-resistant and antistatic knitted fabric. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides an antibacterial, odor-removing, wrinkle-resistant and antistatic knitted fabric and a preparation method thereof.

[0006] The technical solution of the present invention is: an antibacterial, odor-removing, wrinkle-resistant and antistatic knitted fabric, which is obtained by finishing the fabric with an antistatic agent.

[0007] The fabric includes the following components by weight: 30-40 parts of polyester fiber, 20-30 parts of cotton fiber, and 10-20 parts of graphene fiber.

[0008] The antistatic agent includes the following components by weight: 15-25 parts of acrylate emulsion, 10-20 parts of titanium dioxide-graphene mixed powder, 5-10 parts of dispersant, 1-3 parts of coupling agent, 5-15 parts of sodium xylene sulfonate, and 40-60 parts of deionized water.

[0009] Explanation: The fabric of the present invention has good wrinkle resistance, and the antistatic agent is used to finish the fabric, so that the antistatic agent adheres to the fabric fibers, reducing the friction coefficient between the fabric fibers, reducing the generation of static charges. The titanium dioxide-graphene mixed powder in the antistatic agent can improve the electrical conductivity of the fabric to reduce the charge accumulation on the fabric surface and improve the antistatic performance of the fabric. At the same time, the finished fabric also obtains good antibacterial properties.

[0010] Further, the titanium dioxide-graphene mixed powder is prepared by the following preparation method:

[0011] S1. Mix 5 - 8 g of graphene powder with 500 ml of water, and prepare a graphene dispersion after ultrasonic dispersion for 3 - 6 min;

[0012] S2. Add 200 ml of a mixed solution of absolute ethanol and glacial acetic acid to the graphene dispersion, and obtain solution A after mixing evenly;

[0013] S3. Add 40 - 60 ml of tetrabutyl titanate to a mixed solution of 300 ml of absolute ethanol and ammonia water to obtain solution B;

[0014] S4. After heating solution A to 30 - 40 °C, gradually add solution B to solution A under stirring. The initial addition amount of solution B is 30 - 50 ml / min, and the addition amount of solution B increases at a rate of 10 - 15 ml / min until all of solution B is added to solution A to obtain a mixed solution. After standing for 2 - 4 h, filter and dry the mixed solution to obtain a titanium dioxide - graphene mixed powder.

[0015] Note: In the above method, a layer of titanium dioxide powder is formed on the surface of the graphene powder by tetrabutyl titanate, and the obtained titanium dioxide - graphene has good electrical conductivity and can effectively improve the antistatic and antibacterial properties of the fabric.

[0016] Further, the volume ratio of absolute ethanol to glacial acetic acid in the mixed solution of absolute ethanol and glacial acetic acid is 2 - 2.5:1.

[0017] Note: Limiting the ratio of absolute ethanol to glacial acetic acid can ensure the generation rate and amount of titanium dioxide.

[0018] Further, the volume ratio of absolute ethanol to ammonia water in the mixed solution of absolute ethanol and ammonia water is 2.5 - 3:1.

[0019] Note: Limiting the ratio of absolute ethanol to glacial acetic acid can ensure the generation rate of titanium dioxide.

[0020] Further, the dispersant is a mixture composed of any one or more of lauryl alcohol polyoxyethylene ether and polyacrylamide in any ratio.

[0021] Note: The dispersant can disperse the titanium dioxide - graphene mixed powder, making the titanium dioxide - graphene mixed powder evenly distributed on the fabric fibers and avoiding powder agglomeration.

[0022] Further, the coupling agent is a mixture composed of any one or more of vinyl dimethyl ethoxysilane, vinyl trimethoxysilane, and vinyl triethoxysilane in any ratio.

[0023] Description: The coupling agent can evenly disperse the titanium dioxide-graphene mixed powder in the antistatic agent. The coupling agent can increase the binding property between the titanium dioxide-graphene and the fabric, making the antistatic agent not easily eluted and improving the practical durability of the antistatic agent.

[0024] Furthermore, it includes the following steps:

[0025] Step 1: Spray the antistatic agent at 50-70°C on the fabric surface, and the spraying amount of the antistatic agent is 500-700 ml / m 2 , after spraying, irradiate the fabric with an ultraviolet lamp. The power of the ultraviolet lamp is 1000 W, and the irradiation time is 5-10 min;

[0026] Step 2: Roll the irradiated fabric, and the liquor pickup is 60-80%;

[0027] Step 3: Repeat Steps 1 and 2 for 2-4 times, and for each subsequent spraying, the spraying amount of the antistatic agent is reduced by 30-50 ml / m 2 , and the power of the ultraviolet lamp is increased by 100-150 W compared with the previous time, until the rolled fabric is obtained after the last rolling;

[0028] Step 4: Dry the rolled fabric, and the antistatic knitted fabric is obtained after drying.

[0029] Description: The above steps use the spraying method to combine the antistatic agent with the fabric. Ultraviolet irradiation can improve the hydrophilicity of the fabric, make the antistatic agent tightly combine with the fabric fibers, and through multiple combinations of rolling and spraying, the antistatic agent can be evenly distributed, improve the antistatic performance of the fabric, make the antistatic agent firmly combine with the fabric fibers, and make the antistatic durability of the fabric better.

[0030] Furthermore, the distance between the ultraviolet lamp and the fabric in Step 1 is 10-22 cm.

[0031] Description: Limiting the distance between the ultraviolet lamp and the fabric can ensure the light intensity and avoid insufficient ultraviolet irradiation intensity.

[0032] Furthermore, the drying temperature in Step 4 is 50-60°C, and the drying time is 8-10 min.

[0033] Description: Limiting the drying temperature and drying time can ensure the drying effect.

[0034] The beneficial effects of the present invention are:

[0035] (1) The fabric of the present invention has good wrinkle resistance, and an antistatic agent is used to finish the fabric, so that the antistatic agent adheres to the fabric fibers, reducing the friction coefficient between the fabric fibers, reducing the generation of static charges. The titanium dioxide-graphene mixed powder in the antistatic agent can improve the electrical conductivity of the fabric to reduce the charge accumulation on the fabric surface, improve the antistatic performance of the fabric, and at the same time, the finished fabric also obtains good antibacterial performance.

[0036] (2) The present invention uses the spraying method to combine the antistatic agent with the fabric. Ultraviolet irradiation can improve the hydrophilicity of the fabric, make the antistatic agent tightly combine with the fabric fibers, and through the combination of multiple rolling and spraying, the antistatic agent can be evenly distributed, improve the antistatic performance of the fabric, enable the antistatic agent to firmly combine with the fabric fibers, and make the antistatic durability of the fabric better. Detailed implementation mode

[0037] The following is a more detailed description of the present invention in combination with the specific implementation mode to better reflect the advantages of the present invention.

[0038] Example 1

[0039] An antibacterial, odor-removing, wrinkle-resistant and antistatic knitted fabric is obtained by finishing the fabric with an antistatic agent.

[0040] The fabric includes the following components by weight: 35 parts of polyester fiber, 25 parts of cotton fiber, and 15 parts of graphene fiber.

[0041] The antistatic agent includes the following components by weight: 20 parts of acrylate emulsion, 15 parts of titanium dioxide-graphene mixed powder, 8 parts of dispersant, 2 parts of coupling agent, 10 parts of sodium xylene sulfonate, and 50 parts of deionized water.

[0042] The titanium dioxide-graphene mixed powder is prepared by the following method:

[0043] S1. Mix 7 g of graphene powder with 500 ml of water, and prepare a graphene dispersion liquid after ultrasonic dispersion for 5 min.

[0044] S2. Add 200 ml of a mixed solution of anhydrous ethanol and glacial acetic acid to the graphene dispersion liquid, and mix evenly to obtain solution A.

[0045] S3. Add 50 ml of tetrabutyl titanate to 300 ml of a mixed solution of anhydrous ethanol and ammonia water to obtain solution B.

[0046] S4. After heating solution A to 35°C, gradually add solution B to solution A under stirring. The initial addition rate of solution B is 40 ml / min, and the addition rate of solution B increases at a rate of 12 ml / min until all of solution B is added to solution A, obtaining a mixed solution. After standing for 3 h, filter and dry the mixed solution to obtain titanium dioxide-graphene mixed powder;

[0047] In the mixed solution of absolute ethanol and glacial acetic acid, the volume ratio of absolute ethanol to glacial acetic acid is 2.3:1; in the mixed solution of absolute ethanol and ammonia water, the volume ratio of absolute ethanol to ammonia water is 2.7:1; the dispersant is lauryl alcohol polyoxyethylene ether; the coupling agent is vinyl dimethyl ethoxysilane;

[0048] The preparation method of the above antistatic knitted fabric includes the following steps:

[0049] Step 1: Spray an antistatic agent at 60°C on the fabric surface. The spraying amount of the antistatic agent is 600 ml / m 2 , and after spraying, irradiate the fabric with an ultraviolet lamp. The power of the ultraviolet lamp is 1000 W, and the irradiation time is 8 min;

[0050] Step 2: Roll the irradiated fabric, and the pick-up rate is 70%;

[0051] Step 3: Repeat steps 1 and 2 three times, and each time the spraying amount of the antistatic agent is reduced by 40 ml / m compared with the previous time 2 , and the power of the ultraviolet lamp is increased by 125 W compared with the previous time until the rolled fabric is obtained after the last rolling;

[0052] Step 4: Dry the rolled fabric at a drying temperature of 55°C for 9 min to obtain the antistatic knitted fabric;

[0053] The distance between the ultraviolet lamp and the fabric in step 1 is 15 cm.

[0054] Example 2

[0055] This example is basically the same as Example 1, except that the fabric includes the following components by weight: 30 parts of polyester fiber, 20 parts of cotton fiber, and 10 parts of graphene fiber.

[0056] Example 3

[0057] This example is basically the same as Example 1, except that the fabric includes the following components by weight: 40 parts of polyester fiber, 30 parts of cotton fiber, and 20 parts of graphene fiber.

[0058] Example 4

[0059] This example is basically the same as Example 1, except that the antistatic agent includes the following components by weight: 15 parts of acrylate emulsion, 10 parts of titanium dioxide-graphene mixed powder, 5 parts of dispersant, 1 part of coupling agent, 5 parts of sodium xylene sulfonate, and 40 parts of deionized water.

[0060] Example 5

[0061] This example is basically the same as Example 1, except that the antistatic agent includes the following components by weight: 25 parts of acrylate emulsion, 20 parts of titanium dioxide-graphene mixed powder, 10 parts of dispersant, 3 parts of coupling agent, 15 parts of sodium xylene sulfonate, and 60 parts of deionized water.

[0062] Example 6

[0063] This example is basically the same as Example 1, except that 5 g of graphene powder is mixed with 500 ml of water, and after ultrasonic dispersion for 3 min, a graphene dispersion is obtained; 40 ml of tetrabutyl titanate is added to a mixed solution of 300 ml of absolute ethanol and ammonia water to obtain Solution B.

[0064] Example 7

[0065] This example is basically the same as Example 1, except that 8 g of graphene powder is mixed with 500 ml of water, and after ultrasonic dispersion for 6 min, a graphene dispersion is obtained; 60 ml of tetrabutyl titanate is added to a mixed solution of 300 ml of absolute ethanol and ammonia water to obtain Solution B.

[0066] Example 8

[0067] This example is basically the same as Example 1, except that under stirring, Solution B is gradually added to Solution A. The initial addition amount of Solution B is 30 ml / min, and the addition amount of Solution B increases at a rate of 10 ml / min until Solution B is completely added to Solution A to obtain a mixed solution.

[0068] Example 9

[0069] This example is basically the same as Example 1, except that under stirring, Solution B is gradually added to Solution A. The initial addition amount of Solution B is 50 ml / min, and the addition amount of Solution B increases at a rate of 15 ml / min until Solution B is completely added to Solution A to obtain a mixed solution.

[0070] Example 10

[0071] This example is basically the same as Example 1, except that the volume ratio of absolute ethanol to glacial acetic acid in the mixed solution of absolute ethanol and glacial acetic acid is 2:1; the volume ratio of absolute ethanol to ammonia water in the mixed solution of absolute ethanol and ammonia water is 2.5:1.

[0072] Example 11

[0073] This example is basically the same as Example 1, except that the volume ratio of absolute ethanol to glacial acetic acid in the mixed solution of absolute ethanol and glacial acetic acid is 2.5:1; the volume ratio of absolute ethanol to ammonia water in the mixed solution of absolute ethanol and ammonia water is 3:1.

[0074] Example 12

[0075] This example is basically the same as Example 1, except that an antistatic agent at 50 °C is sprayed on the fabric surface, and the spraying amount of the antistatic agent is 500 ml / m 2 .

[0076] Example 13

[0077] This example is basically the same as Example 1, except that an antistatic agent at 70 °C is sprayed on the fabric surface, and the spraying amount of the antistatic agent is 700 ml / m 2 .

[0078] Example 14

[0079] This example is basically the same as Example 1, except that the power of the ultraviolet lamp is 800 W and the irradiation time is 5 min.

[0080] Example 15

[0081] This example is basically the same as Example 1, except that the power of the ultraviolet lamp is 1200 W and the irradiation time is 10 min.

[0082] Example 16

[0083] This example is basically the same as Example 1, except that steps one and two are repeated 2 times, and the spraying amount of the antistatic agent in each subsequent time is reduced by 30 ml / m compared with the previous time 2 , and the power of the ultraviolet lamp is increased by 100 W compared with the previous time.

[0084] Example 17

[0085] This example is basically the same as Example 1, except that steps one and two are repeated 4 times, and the spraying amount of the antistatic agent in each subsequent time is reduced by 50 ml / m compared with the previous time 2 , and the power of the ultraviolet lamp is increased by 150 W compared with the previous time.

[0086] Example 18

[0087] This embodiment is basically the same as Embodiment 1, except that the distance between the ultraviolet lamp and the fabric is 10 cm.

[0088] Embodiment 19

[0089] This embodiment is basically the same as Embodiment 1, except that the distance between the ultraviolet lamp and the fabric is 22 cm.

[0090] Experimental Example

[0091] In order to explore the antistatic and antibacterial properties of the fabrics in each embodiment, according to the test method in GB / T 12703.1-2008 "Evaluation of Electrostatic Properties of Textiles - Part 1: Half-life of Static Voltage", the antistatic properties of the fabrics in each embodiment were tested; the antibacterial rates of the fabrics in each embodiment against Escherichia coli and Candida albicans were tested by the bacterial liquid absorption method, and the specific exploration is as follows:

[0092] 1. Explore the influence of components on the fabric properties

[0093] Taking Embodiments 1, 2, and 3 as experimental comparisons, the fabric properties of different components are shown in Table 1:

[0094] Table 1 Fabric properties of different components

[0095]

[0096] It can be seen from the data in Table 1 that the fabric in Embodiment 1 has the shortest half-life of static voltage and the highest antibacterial rates against Escherichia coli and Candida albicans, indicating that the fabric in Embodiment 1 has the best antistatic and antibacterial properties, and the fabric composition in Embodiment 1 is the best.

[0097] 2. Explore the influence of antistatic agent components on the fabric properties

[0098] Taking Embodiments 1, 4, and 5 as experimental comparisons, with Embodiment 1 as the reference, and the fabric without antistatic agent finishing as Comparative Example 1, the fabric properties under different components of antistatic agents are shown in Table 2:

[0099] Table 2 Fabric properties under different components of antistatic agents

[0100]

[0101] It can be seen from the data in Table 2 that when comparing Examples 1, 4, and 5, the static voltage half-life of the fabric in Example 1 is the shortest, and the antibacterial rates against Escherichia coli and Candida albicans are the highest. This shows that the fabric in Example 1 has the best antistatic performance and antibacterial performance, and the antistatic agent composition in Example 1 is the most optimal; when comparing Example 1 with Comparative Example 1, the static voltage half-life of the fabric after being treated with the antistatic agent is shorter, and the antibacterial rates against Escherichia coli and Candida albicans are increased, indicating that the antistatic performance and antibacterial performance of the fabric are improved after using the antistatic agent.

[0102] 3. Explore the influence of the preparation parameters of titanium dioxide-graphene hybrid powder on the fabric properties

[0103] Taking Examples 1, 6, and 7 as experimental comparisons, the fabric properties under different preparation parameters of titanium dioxide-graphene hybrid powder are shown in Table 3 as follows:

[0104] Table 3 Fabric properties under different preparation parameters of titanium dioxide-graphene hybrid powder

[0105]

[0106] It can be seen from the data in Table 3 that the static voltage half-life of the fabric in Example 1 is the shortest, and the antibacterial rates against Escherichia coli and Candida albicans are the highest. This shows that the fabric in Example 1 has the best antistatic performance and antibacterial performance, and the preparation parameters of the titanium dioxide-graphene hybrid powder in Example 1 are the most optimal.

[0107] 4. Explore the influence of the preparation parameters of the mixed solution on the fabric properties

[0108] Taking Examples 1, 8, and 9 as experimental comparisons, and taking Example 1 as a reference, with the addition amount of Solution B unchanged as Comparative Example 2, the fabric properties under different preparation parameters of the mixed solution are shown in Table 4 as follows:

[0109] Table 4 Fabric properties under different preparation parameters of the mixed solution

[0110]

[0111]

[0112] It can be seen from the data in Table 4 that when comparing Examples 1, 8, and 9, the static voltage half-life of the fabric in Example 1 is the shortest, and the antibacterial rates against Escherichia coli and Candida albicans are the highest. This shows that the fabric in Example 1 has the best antistatic performance and antibacterial performance, and the preparation parameters of the mixed solution in Example 1 are the most optimal; when comparing Example 1 with Comparative Example 2, the static voltage half-life of Example 1 is shorter, and the antibacterial rates against Escherichia coli and Candida albicans are higher, indicating that the addition method of Solution B in Example 1 is more optimal.

[0113] 5. Explore the influence of the preparation parameters of Solution A and Solution B on the fabric properties

[0114] Taking Examples 1, 10, and 11 as experimental comparisons, the fabric properties under different preparation parameters of Solution A and Solution B are shown in Table 5 as follows:

[0115] Table 5 Fabric properties under different preparation parameters of Solution A and Solution B

[0116]

[0117] From the data in Table 5, it can be seen that the fabric in Example 1 has the shortest static voltage half-life and the highest antibacterial rates against Escherichia coli and Candida albicans, indicating that the fabric in Example 1 has the best antistatic performance and antibacterial performance, and the preparation parameters of Solution A and Solution B in Example 1 are the most optimal.

[0118] 6. Explore the effects of the spraying temperature and spraying amount of the antistatic agent on the fabric properties

[0119] Taking Examples 1, 12, and 13 as experimental comparisons, the fabric properties under different spraying temperatures and spraying amounts of the antistatic agent are shown in Table 6 as follows:

[0120] Table 6 Fabric properties under different spraying temperatures and spraying amounts of the antistatic agent

[0121]

[0122] From the data in Table 6, it can be seen that the fabric in Example 1 has the shortest static voltage half-life and the highest antibacterial rates against Escherichia coli and Candida albicans, indicating that the fabric in Example 1 has the best antistatic performance and antibacterial performance, and the spraying temperature and spraying amount of the antistatic agent in Example 1 are the most optimal.

[0123] 7. Explore the effects of the ultraviolet lamp power and irradiation time on the fabric properties

[0124] Taking Examples 1, 14, and 15 as experimental comparisons, the fabric properties under different ultraviolet lamp powers and irradiation times are shown in Table 7 as follows:

[0125] Table 7 Fabric properties under different ultraviolet lamp powers and irradiation times

[0126]

[0127] From the data in Table 7, it can be seen that the fabric in Example 1 has the shortest static voltage half-life and the highest antibacterial rates against Escherichia coli and Candida albicans, indicating that the fabric in Example 1 has the best antistatic performance and antibacterial performance, and the ultraviolet lamp power and irradiation time in Example 1 are the most optimal.

[0128] 8. Explore the effects of the spraying amount of the antistatic agent and the change amount of the ultraviolet lamp power on the fabric properties

[0129] Taking Examples 1, 16, and 17 as experimental comparisons, and taking Example 1 as a reference, with the spraying amount of the antistatic agent and the power of the ultraviolet lamp unchanged as Comparative Example 3, the fabric properties under different change amounts of the spraying amount of the antistatic agent and the power of the ultraviolet lamp are shown in Table 8:

[0130] Table 8 Fabric properties under different change amounts of the spraying amount of the antistatic agent and the power of the ultraviolet lamp

[0131]

[0132] As can be seen from the data in Table 8, compared with Examples 1, 16, and 17, the half-life of the static voltage of the fabric in Example 1 is the shortest, and the antibacterial rates against Escherichia coli and Candida albicans are the highest, indicating that the fabric in Example 1 has the best antistatic performance and antibacterial performance, and the change amounts of the spraying amount of the antistatic agent and the power of the ultraviolet lamp in Example 1 are the most optimal; compared with Comparative Example 3, the half-life of the static voltage of the fabric in Example 1 is shorter, and the antibacterial rates against Escherichia coli and Candida albicans are higher, indicating that the method of changing the spraying amount of the antistatic agent and the power of the ultraviolet lamp is more optimal.

[0133] 9. Explore the influence of the distance between the ultraviolet lamp and the fabric on the fabric properties

[0134] Taking Examples 1, 18, and 19 as experimental comparisons, the fabric properties under different distances between the ultraviolet lamp and the fabric are shown in Table 9:

[0135] Table 9 Fabric properties under different distances between the ultraviolet lamp and the fabric

[0136]

[0137] As can be seen from the data in Table 9, the half-life of the static voltage of the fabric in Example 1 is the shortest, and the antibacterial rates against Escherichia coli and Candida albicans are the highest, indicating that the fabric in Example 1 has the best antistatic performance and antibacterial performance, and the distance between the ultraviolet lamp and the fabric in Example 1 is the most optimal.

Claims

1. An antibacterial, deodorizing, anti-wrinkle and antistatic knitted fabric, characterized in that, It is obtained by finishing the fabric with an antistatic agent. The fabric includes the following components by weight: 30 - 40 parts of polyester fiber, 20 - 30 parts of cotton fiber, and 10 - 20 parts of graphene fiber. The antistatic agent includes the following components by weight: 15 - 25 parts of acrylate emulsion, 10 - 20 parts of titanium dioxide - graphene mixed powder, 5 - 10 parts of dispersant, 1 - 3 parts of coupling agent, 5 - 15 parts of xylene sulfonate, and 40 - 60 parts of deionized water. The titanium dioxide - graphene mixed powder is prepared by the following method: S1. Mix 5 - 8 g of graphene powder with 500 ml of water, and obtain a graphene dispersion after ultrasonic dispersion for 3 - 6 min. S2. Add 200 ml of a mixed solution of absolute ethanol and glacial acetic acid to the graphene dispersion, and mix evenly to obtain solution A. S3. Add 40 - 60 ml of tetrabutyl titanate to a mixed solution of 300 ml of absolute ethanol and ammonia water to obtain solution B. S4. After heating solution A to 30 - 40 °C, gradually add solution B to solution A under stirring. The initial addition amount of solution B is 30 - 50 ml / min, and the addition amount of solution B increases at a rate of 10 - 15 ml / min until all of solution B is added to solution A to obtain a mixed solution. After standing for 2 - 4 h, filter and dry the mixed solution to obtain the titanium dioxide - graphene mixed powder.

2. The antibacterial, odor-removing, anti-wrinkle and antistatic knitted fabric according to claim 1, characterized in that In the mixed solution of absolute ethanol and glacial acetic acid, the volume ratio of absolute ethanol to glacial acetic acid is 2 - 2.5:

1.

3. An antibacterial, odor-removing, wrinkle-resistant and antistatic knitted fabric according to claim 1, characterized in that, In the mixed solution of absolute ethanol and ammonia water, the volume ratio of absolute ethanol to ammonia water is 2.5 - 3:

1.

4. An antibacterial, deodorizing, anti-wrinkle and antistatic knitted fabric according to claim 1, characterized in that, The dispersant is a mixture composed of any one or more of lauryl alcohol polyoxyethylene ether and polyacrylamide in any ratio.

5. An antibacterial, deodorizing, anti-wrinkle and anti-static knitted fabric according to claim 1, characterized in that, The coupling agent is a mixture composed of any one or more of vinyl dimethyl ethoxysilane, vinyl trimethoxysilane, and vinyl triethoxysilane in any ratio.

6. The preparation method of an antibacterial, odor-removing, wrinkle-resistant and antistatic knitted fabric according to any one of claims 1 to 5, characterized in that, It includes the following steps: Step 1: Spray an antistatic agent at 50 - 70 °C on the fabric surface, with the spraying amount of the antistatic agent being 500 - 700 ml / m 2 , and after spraying, irradiate the fabric with an ultraviolet lamp. The power of the ultraviolet lamp is 800 - 1200 W, and the irradiation time is 5 - 10 min; Step two: Roll the irradiated fabric, and the liquor pick - up rate is 60 - 80%. Step 3: Repeat Step 1 and Step 2 for 2 to 4 times, and for each subsequent spraying of the antistatic agent, the spraying amount is reduced by 30 to 50 ml / m compared to the previous time 2 , and the power of the ultraviolet lamp is increased by 100 to 150 W compared to the previous time until the rolled fabric is obtained after the last rolling Step four: Dry the rolled fabric, and obtain an antistatic knitted fabric after drying.

7. The preparation method of an antibacterial, deodorizing, anti-wrinkle and antistatic knitted fabric according to claim 6, characterized in that, In step one, the distance between the ultraviolet lamp and the fabric is 10 - 22 cm.

8. The preparation method of an antibacterial, odor-removing, wrinkle-resistant and antistatic knitted fabric according to claim 6, characterized in that, In step four, the drying temperature for drying is 50 - 60 °C, and the drying time is 8 - 10 min.

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