Deodorizing and antibacterial fabric and production process thereof

Abstract

The invention relates to a deodorant and bacteriostatic fabric and a production process thereof, and belongs to the technical field of high polymer materials. The deodorant and bacteriostatic fabric sequentially comprises a base cloth layer, an antibacterial and deodorant layer and a fabric layer from top to bottom, the antibacterial and deodorant layer is formed by weaving warps and wefts, the warps are cotton fibers and bamboo charcoal fibers treated by a modified bacteriostatic agent, and the wefts are cotton fibers and acrylic fibers treated by a deodorant finishing agent; the base cloth layer is formed by weaving milk protein fibers; the fabric layer is formed by weaving polyacrylonitrile fibers; the deodorant and bacteriostatic fabric prepared by the invention not only has an excellent bacteriostatic effect, but also has a good deodorant effect and comfort.

Description

Technical Field

[0001] The invention belongs to the field of fabrics, and in particular relates to a deodorizing and antibacterial fabric and a production process thereof. Background Art

[0002] With the improvement of modern living quality and the enhancement of health and safety awareness, people pay more and more attention to disease prevention and hygiene protection. The requirements for fabrics are not limited to practicality and comfort, but also focus on their antibacterial functions, in order to protect the health of human skin and maintain environmental stability to build a protective barrier against germs.

[0003] However, traditional cotton fiber fabrics are hydrophilic and porous, which easily form a humid environment for the growth of bacteria, and the sugar, dust and dandruff on the fabrics become a source of nutrition for bacteria. After long-term use, bacteria not only damage the fabrics, causing mildew, discoloration and odor, but some bacteria can also decompose human metabolites to produce "smell", and even enter the blood, causing disease and endangering human health. High-quality fabrics serve as a barrier between the skin and the environment, which can effectively isolate bacteria and protect individuals from bacterial invasion. Therefore, antibacterial treatment of fabrics is very important, which can not only protect the fabrics from mildew, but also prevent bacterial cross-infection and ensure the health of the wearer. Although existing fabrics have antibacterial effects, the effects are significantly weakened or even ineffective after washing, which cannot meet market demand. Therefore, the research and development of fabrics with excellent deodorizing and antibacterial properties has important practical significance and application value. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a deodorizing and antibacterial fabric and a production process thereof.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A deodorizing and antibacterial fabric comprises, from top to bottom, a base fabric layer, an antibacterial and deodorizing layer, and a fabric layer; the antibacterial and deodorizing layer is woven from warp and weft; the warp is cotton fiber and bamboo charcoal fiber treated with a modified antibacterial agent; the weft is cotton fiber and acrylic fiber treated with a deodorizing finishing agent; the base fabric layer is woven from milk protein fiber; the fabric layer is woven from polyacrylonitrile fiber;

[0007] Furthermore, the antibacterial and deodorizing layer comprises the following raw materials in parts by weight: 55-80 parts of cotton fiber, 20-30 parts of bamboo charcoal fiber, 25-45 parts of acrylic fiber, 1-7 parts of modified antibacterial agent, and 1-10 parts of deodorizing finishing agent;

[0008] Furthermore, the modified antibacterial agent is prepared by the following method:

[0009] Step A1: Mix pterostilbene and N,N-dimethylformamide, heat to 60°C, add 4-dimethylaminobenzoic acid and dimethyl sulfoxide, stir for 4 hours, adjust the pH to 5.5, stir at room temperature for 24 hours, and vacuum dry to obtain a compound;

[0010] Furthermore, the dosage ratio of pterostilbene, N,N-dimethylformamide, 4-dimethylaminobenzoic acid, and dimethyl sulfoxide is 0.8-1.2 mol: 0.1 mL: 0.8-1.2 mol: 10 mL;

[0011] Step A2: 2,4-dichlorobenzyl alcohol, the compound and ethanol were mixed, stirred at 50° C. for 72 h, rotary evaporated, washed, filtered, and vacuum dried at 40° C. for 4 h to obtain a pre-product;

[0012] Further, the usage ratio of 2,4-dichlorobenzyl alcohol, compound, and ethanol is 1.54-1.75 g: 7.2-8.4 g: 100-150 mL;

[0013] Step A3: Mix the acetic acid-water solution and chitosan, stir for 30 minutes, then add paraformaldehyde and the pre-product and mix evenly, react in an 80° C. oil bath for 5 hours, cool to room temperature, extract, and rotary evaporate to obtain a modified antibacterial agent;

[0014] Furthermore, the dosage ratio of the acetic acid aqueous solution, chitosan, paraformaldehyde, and pre-product is 50 mL: 1-2 mol: 0.2-0.4 mol: 0.2-0.4 mol, and the volume ratio of acetic acid to water in the acetic acid-water solution is 3:2;

[0015] Furthermore, the deodorizing finishing agent is prepared by the following method:

[0016] Step B1: 2-chloro-4-hydroxybenzaldehyde, β-cyclodextrin and sodium hydroxide are mixed evenly, reacted in an ice water bath at 0-5°C for 9 hours, washed and rotary evaporated to obtain an intermediate product;

[0017] Furthermore, the dosage ratio of 2-chloro-4-hydroxybenzaldehyde, β-cyclodextrin, and sodium hydroxide is 0.9-1.1 mol: 0.9-1.1 mol: 80 mL;

[0018] Step B2: uniformly mix the intermediate product and anhydrous ethanol-water solution at 60°C, cool to 50°C, add tea polyphenols and anhydrous ethanol, place in the dark, stir at 200 r / min for 12 hours, stand at 4°C for 24 hours, filter, wash, and vacuum dry to obtain a deodorizing finishing agent;

[0019] Furthermore, the usage ratio of the intermediate product, anhydrous ethanol-water solution, tea polyphenols, and anhydrous ethanol is 3.21-3.67 g:50 mL:1.19-1.35 g:25 mL, and the volume ratio of anhydrous ethanol to water in the anhydrous ethanol-water solution is 2:1.

[0020] A production process of a deodorizing and antibacterial fabric comprises the following steps:

[0021] S1: Immerse cotton fiber and bamboo charcoal fiber in a modified antibacterial agent, first soak at 42-46°C for 0.5-1h, then heat to 65-75°C and continue soaking for 1-2h, then dry at 60-70°C for 3-5min to obtain a radial antibacterial fiber;

[0022] S2: soaking cotton fiber and acrylic fiber in a deodorizing finishing agent at room temperature for 8-12 hours, and then drying at 50-60°C for 10-20 minutes to obtain a weft deodorizing fiber;

[0023] S3: weaving the warp antibacterial fiber and the weft deodorizing fiber into an antibacterial and deodorizing layer;

[0024] S4: The antibacterial and deodorizing layer is fixed between the base fabric layer and the fabric layer by weaving to obtain the deodorizing and antibacterial fabric;

[0025] Furthermore, the thickness of the base fabric layer and the surface fabric layer are both 0.4 μm.

[0026] Beneficial effects of the present invention:

[0027] The deodorizing and antibacterial fabric of the present invention has good antibacterial performance, while also ensuring its comfort and deodorizing effect, and maintaining the stability of the human body microenvironment.

[0028] The modified antibacterial agent prepared by the present invention first utilizes the hydroxyl group of stilbene and the carboxyl group of 4-dimethylaminobenzoic acid to esterify under the action of N,N-dimethylformamide, a catalyst, to generate a compound; secondly, utilizes the chlorine atom of 2,4-dichlorobenzyl alcohol to quaternize the compound to generate a pre-product; finally, utilizes the Mannich reaction to graft the pre-product onto chitosan to synthesize the modified antibacterial agent. The natural polyphenol compound stilbene in the modified antibacterial agent exhibits excellent anti-mite and antibacterial properties. It can effectively destroy the bacterial cell membrane, causing the disintegration of its internal structure, the leakage of nucleic acids and proteins, and induce the production of active oxygen, accelerate cell apoptosis, and combine with the natural antibacterial substance chitosan to enhance the inhibitory effect on bacteria and fungi; in addition, the quaternary ammonium salt pre-product can penetrate the bacterial cell wall, react with the protein on the bacterial cell membrane, cause the membrane to rupture, cause the protein in the bacteria to leak, and accelerate the death of bacteria, thereby improving the antibacterial effect. At the same time, the quaternary ammonium salt pre-product Positive charge can also adsorb negatively charged bacteria through electrostatic action, disrupt the surface charge distribution of bacteria, affect the normal activity of cell membrane, and thus hinder bacterial protein synthesis; in addition, chitosan carries a positive charge in an acidic or neutral environment, and can be firmly adsorbed on the negatively charged bacterial cell wall, destroying its structural integrity, causing cell wall rupture or pore formation through osmosis, and effectively inhibiting bacterial activity. At the same time, chitosan can also react with the hydroxyl groups on cotton fibers, fixing the modified antibacterial agent on the surface of the fabric in the form of chemical bonds, giving the fabric excellent antibacterial function.

[0029] The deodorizing finishing agent prepared by the invention firstly utilizes the chlorine atom of 2-chloro-4-hydroxybenzaldehyde and the hydroxyl group of beta-cyclodextrin to react to generate an intermediate product; then utilizes the coprecipitation method to include the natural antibacterial agent tea polyphenol in the cavity structure of the intermediate product to synthesize the deodorizing finishing agent; the beta-cyclodextrin in the deodorizing finishing agent has a hydrophobic cavity structure, can absorb the special odors of ammonia and hydrogen sulfide, and can form an inclusion compound with the tea polyphenol to slow down the volatilization of fragrance and prolong the fragrance retention time of the fabric, thereby achieving a lasting deodorizing effect; after the fragrance is released, the cyclodextrin itself still has the ability to absorb odor molecules, thereby achieving a double deodorizing effect; in addition, the phenolic hydroxyl group rich in the tea polyphenol can interact with the phospholipid bilayer on the cell membrane of the microorganism and the hydroxyl group and amino group in the microorganism membrane protein, thereby destroying the cell membrane structure of the bacteria, interfering with the normal metabolic activity of the bacteria, and acting together with the 2-chloro-4-hydroxybenzaldehyde to effectively inhibit the growth of the microorganism, thereby further increasing the antibacterial effect of the fabric. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Embodiment 1: A deodorizing and antibacterial fabric, wherein the modified antibacterial agent is prepared by the following method:

[0032] Step A1: 0.8 mol of pterostilbene and 0.1 mL of N,N-dimethylformamide were mixed, the temperature was raised to 60°C, 0.8 mol of 4-dimethylaminobenzoic acid and 10 mL of dimethyl sulfoxide were added, and the mixture was stirred for 4 h. The pH was adjusted to 5.5, and the mixture was stirred at room temperature for 24 h. The mixture was dried in vacuo to obtain a compound;

[0033] Step A2: 1.54 g of 2,4-dichlorobenzyl alcohol, 7.2 g of the compound and 100 mL of ethanol were mixed, stirred at 50° C. for 72 h, rotary evaporated, washed, filtered, and vacuum dried at 40° C. for 4 h to obtain a pre-product;

[0034] Step A3: 50 mL of acetic acid-water solution and 1 mol chitosan were mixed, stirred for 30 min, and then 0.2 mol of paraformaldehyde and 0.2 mol of pre-product were added and mixed evenly, reacted in an 80°C oil bath for 5 h, and after cooling to room temperature, extracted and rotary evaporated to obtain a modified antibacterial agent, wherein the volume ratio of acetic acid to water in the acetic acid-water solution was 3:2;

[0035] The deodorizing finishing agent is prepared by the following method:

[0036] Step B1: 0.9 mol 2-chloro-4-hydroxybenzaldehyde, 0.9 mol β-cyclodextrin and 80 mL sodium hydroxide were mixed evenly, reacted in a 0°C ice water bath for 9 h, washed, and rotary evaporated to obtain an intermediate product;

[0037] Step B2: 3.21 g of the intermediate product and 50 mL of anhydrous ethanol-water solution were mixed uniformly at 60° C., cooled to 50° C., 1.19 g of tea polyphenols and 25 mL of anhydrous ethanol were added, placed in the dark, stirred at 200 r / min for 12 h, and then allowed to stand at 4° C. for 24 h, filtered, washed, and vacuum dried to obtain a deodorizing finishing agent, wherein the volume ratio of anhydrous ethanol to water in the anhydrous ethanol-water solution was 2:1;

[0038] A production process of a deodorizing and antibacterial fabric specifically comprises the following steps:

[0039] S1: Weigh the raw materials by weight, immerse 30 parts of cotton fiber and 20 parts of bamboo charcoal fiber in 1 part of modified antibacterial agent (prepared in this example), first soak at 42°C for 0.5h, then heat to 65°C and continue soaking for 1h, and then dry at 60°C for 3min to obtain radial antibacterial fiber;

[0040] S2: Weigh the raw materials by weight, immerse 25 parts of cotton fiber and 25 parts of acrylic fiber in 1 part of deodorizing finishing agent (prepared in this example), soak at room temperature for 8 hours, and then dry at 50° C. for 10 minutes to obtain weft deodorizing fiber;

[0041] S3: weaving the warp antibacterial fiber and the weft deodorizing fiber into an antibacterial and deodorizing layer;

[0042] S4: The antibacterial and deodorizing layer is fixed between the base fabric layer and the fabric layer by weaving to obtain the deodorizing and antibacterial fabric;

[0043] Furthermore, the base fabric layer is woven from milk protein fibers; the surface layer is woven from polyacrylonitrile fibers; and the thickness of the base fabric layer and the surface layer are both 0.4 μm.

[0044] Embodiment 2: A deodorizing and antibacterial fabric, wherein the modified antibacterial agent is prepared by the following method:

[0045] Step A1: Mix 1 mol of pterostilbene and 0.1 mL of N,N-dimethylformamide, heat to 60°C, add 1 mol of 4-dimethylaminobenzoic acid and 10 mL of dimethyl sulfoxide, stir for 4 h, adjust the pH to 5.5, stir at room temperature for 24 h, and vacuum dry to obtain a compound;

[0046] Step A2: 1.61 g of 2,4-dichlorobenzyl alcohol, 7.8 g of the compound and 120 mL of ethanol were mixed, stirred at 50° C. for 72 h, rotary evaporated, washed, filtered, and vacuum dried at 40° C. for 4 h to obtain a pre-product;

[0047] Step A3: 50 mL of acetic acid-water solution and 1.5 mol chitosan were mixed, stirred for 30 min, and then 0.3 mol paraformaldehyde and 0.3 mol pre-product were added and mixed evenly, reacted in an 80° C. oil bath for 5 h, cooled to room temperature, extracted, and rotary evaporated to obtain a modified antibacterial agent, wherein the volume ratio of acetic acid to water in the acetic acid-water solution was 3:2;

[0048] The deodorizing finishing agent is prepared by the following method:

[0049] Step B1: 1 mol 2-chloro-4-hydroxybenzaldehyde, 1 mol β-cyclodextrin and 80 mL sodium hydroxide were mixed evenly, reacted in a 2°C ice water bath for 9 h, washed, and rotary evaporated to obtain an intermediate product;

[0050] Step B2: 3.23 g of the intermediate product and 50 mL of anhydrous ethanol-water solution were mixed uniformly at 60° C., cooled to 50° C., 1.27 g of tea polyphenols and 25 mL of anhydrous ethanol were added, placed in the dark, stirred at 200 r / min for 12 h, then allowed to stand at 4° C. for 24 h, filtered, washed, and vacuum dried to obtain a deodorizing finishing agent, wherein the volume ratio of anhydrous ethanol to water in the anhydrous ethanol-water solution was 2:1;

[0051] A production process of a deodorizing and antibacterial fabric specifically comprises the following steps:

[0052] S1: Weigh the raw materials by weight, immerse 35 parts of cotton fiber and 25 parts of bamboo charcoal fiber in 4 parts of modified antibacterial agent (prepared in this example), first soak at 44°C for 0.7h, then heat to 70°C and continue soaking for 1.5h, and then dry at 65°C for 4min to obtain radial antibacterial fiber;

[0053] S2: Weigh the raw materials by weight, immerse 37 parts of cotton fiber and 35 parts of acrylic fiber in 5 parts of deodorizing finishing agent (prepared in this example), soak at room temperature for 10 hours, and then dry at 55° C. for 15 minutes to obtain weft deodorizing fiber;

[0054] S3: weaving the warp antibacterial fiber and the weft deodorizing fiber into an antibacterial and deodorizing layer;

[0055] S4: The antibacterial and deodorizing layer is fixed between the base fabric layer and the fabric layer by weaving to obtain the deodorizing and antibacterial fabric;

[0056] Furthermore, the base fabric layer is woven from milk protein fibers; the surface layer is woven from polyacrylonitrile fibers; and the thickness of the base fabric layer and the surface layer are both 0.4 μm.

[0057] Embodiment 3: A deodorizing and antibacterial fabric, wherein the modified antibacterial agent is prepared by the following method:

[0058] Step A1: 1.2 mol of pterostilbene and 0.1 mL of N,N-dimethylformamide were mixed, the temperature was raised to 60°C, 1.2 mol of 4-dimethylaminobenzoic acid and 10 mL of dimethyl sulfoxide were added, and the mixture was stirred for 4 h, the pH was adjusted to 5.5, and the mixture was stirred at room temperature for 24 h, and vacuum dried to obtain a compound;

[0059] Step A2: 1.75 g of 2,4-dichlorobenzyl alcohol, 8.4 g of the compound and 150 mL of ethanol were mixed, stirred at 50° C. for 72 h, rotary evaporated, washed, filtered, and vacuum dried at 40° C. for 4 h to obtain a pre-product;

[0060] Step A3: 50 mL of acetic acid-water solution and 2 mol chitosan were mixed, stirred for 30 min, and then 0.4 mol of paraformaldehyde and 0.4 mol of pre-product were added and mixed evenly, reacted in an 80°C oil bath for 5 h, and after cooling to room temperature, extracted and rotary evaporated to obtain a modified antibacterial agent, wherein the volume ratio of acetic acid to water in the acetic acid-water solution was 3:2;

[0061] The deodorizing finishing agent is prepared by the following method:

[0062] Step B1: 1.1 mol 2-chloro-4-hydroxybenzaldehyde, 1.1 mol β-cyclodextrin and 80 mL sodium hydroxide were mixed evenly, reacted in a 5°C ice water bath for 9 h, washed, and rotary evaporated to obtain an intermediate product;

[0063] Step B2: 3.67 g of the intermediate product and 50 mL of anhydrous ethanol-water solution were mixed uniformly at 60° C., cooled to 50° C., 1.35 g of tea polyphenols and 25 mL of anhydrous ethanol were added, placed in the dark, stirred at 200 r / min for 12 h, then allowed to stand at 4° C. for 24 h, filtered, washed, and vacuum dried to obtain a deodorizing finishing agent, wherein the volume ratio of anhydrous ethanol to water in the anhydrous ethanol-water solution was 2:1;

[0064] A production process of a deodorizing and antibacterial fabric specifically comprises the following steps:

[0065] S1: Weigh the raw materials by weight, immerse 40 parts of cotton fiber and 30 parts of bamboo charcoal fiber in 7 parts of modified antibacterial agent (prepared in this example), first soak at 46°C for 1 hour, then heat to 75°C and continue soaking for 2 hours, and then dry at 70°C for 5 minutes to obtain radial antibacterial fiber;

[0066] S2: Weigh the raw materials by weight, immerse 40 parts of cotton fiber and 45 parts of acrylic fiber in 10 parts of deodorizing finishing agent (prepared in this example), soak at room temperature for 12 hours, and then dry at 60° C. for 20 minutes to obtain weft deodorizing fiber;

[0067] S3: weaving the warp antibacterial fiber and the weft deodorizing fiber into an antibacterial and deodorizing layer;

[0068] S4: The antibacterial and deodorizing layer is fixed between the base fabric layer and the fabric layer by weaving to obtain the deodorizing and antibacterial fabric;

[0069] Furthermore, the base fabric layer is woven from milk protein fibers; the surface layer is woven from polyacrylonitrile fibers; and the thickness of the base fabric layer and the surface layer are both 0.4 μm.

[0070] Comparative Example 1: This comparative example is a deodorizing and antibacterial fabric. The difference from Example 3 is that an equal amount of zinc oxide is used to replace the modified antibacterial agent prepared in Example 3, and the rest is the same.

[0071] Comparative Example 2: This comparative example is a deodorizing and antibacterial fabric. The difference from Example 3 is that an equal amount of activated clay is used to replace the deodorizing finishing agent prepared in Example 3, and the rest is the same.

[0072] Performance test: The deodorizing and antibacterial fabrics prepared in Examples 1-3 and the comparative example were cut into standard test sizes, and antibacterial tests were performed according to standard QB / T 2591-2003; antibacterial tests were performed with reference to GB / T20944.3-2008 "Evaluation of Antibacterial Properties of Textiles Part 3: Oscillation Method", and according to JI SL 1096 standard, stiffness R was used to indicate the softness of the fabric, and the smaller the R value, the softer the fabric (R for pure cotton is 3.46); anti-mite tests were performed according to standard GB / T2912.2-2009, and according to JI SL1096 standard; the fabric was placed in a container of the tested gas (ammonia, hydrogen sulfide) with a known concentration C0, and after being sealed for 1.5 hours, the concentration C1 of the gas on the north side of the sealed container was measured, and the deodorization rate was tested, and the deodorization percentage = (1-C1 / C0) × 100%; the test results are shown in the following table:

[0073] Table 1

[0074]

[0075] It can be seen from the test data in the table that the deodorizing and antibacterial fabric prepared by the present invention has an excellent antibacterial effect. It can also be seen from the above table that the deodorizing and antibacterial fabric prepared by the present invention has a good deodorizing effect and comfort.

[0076] The above contents are merely examples and explanations of the concept of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the concept of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A deodorizing and antibacterial fabric, characterized in that: From top to bottom, there are base fabric layer, antibacterial and deodorizing layer and fabric layer; the antibacterial and deodorizing layer is woven from warp and weft; the warp is cotton fiber and bamboo charcoal fiber treated with modified antibacterial agent; the weft is cotton fiber and acrylic fiber treated with deodorizing finishing agent; the base fabric layer is woven from milk protein fiber; the fabric layer is woven from polyacrylonitrile fiber.

2. The deodorizing and antibacterial fabric according to claim 1, characterized in that: The thickness of the base fabric layer and the surface fabric layer are both 0.4 μm.

3. The deodorizing and antibacterial fabric according to claim 1, characterized in that: The modified antibacterial agent is prepared by the following method: Step A1: Mix pterostilbene and N,N-dimethylformamide, heat to 60°C, add 4-dimethylaminobenzoic acid and dimethyl sulfoxide, stir for 4 hours, adjust the pH to 5.5, stir at room temperature for 24 hours, and vacuum dry to obtain a compound; Step A2: 2,4-dichlorobenzyl alcohol, the compound and ethanol were mixed, stirred at 50° C. for 72 h, rotary evaporated, washed, filtered, and vacuum dried at 40° C. for 4 h to obtain a pre-product; Step A3: Mix the acetic acid-water solution and chitosan, stir for 30 minutes, then add polyformaldehyde and the pre-product and mix evenly, react in an 80° C. oil bath for 5 hours, cool to room temperature, extract, and rotary evaporate to obtain a modified antibacterial agent.

4. The deodorizing and antibacterial fabric according to claim 3, characterized in that: In step A1, the usage ratio of pterostilbene, N,N-dimethylformamide, 4-dimethylaminobenzoic acid and dimethyl sulfoxide is 0.8-1.2 mol: 0.1 mL: 0.8-1.2 mol: 10 mL.

5. The deodorizing and antibacterial fabric according to claim 3, characterized in that: In step A2, the usage ratio of 2,4-dichlorobenzyl alcohol, compound and ethanol is 1.54-1.75 g: 7.2-8.4 g: 100-150 mL.

6. The deodorizing and antibacterial fabric according to claim 3, characterized in that: In step A3, the dosage ratio of acetic acid aqueous solution, chitosan, paraformaldehyde and pre-product is 50mL: 1-2mol: 0.2-0.4mol: 0.2-0.4mol, and the volume ratio of acetic acid and water in the acetic acid-water solution is 3:

2.

7. The deodorizing and antibacterial fabric according to claim 1, characterized in that: The deodorizing finishing agent is prepared by the following method: Step B1: 2-chloro-4-hydroxybenzaldehyde, β-cyclodextrin and sodium hydroxide are mixed evenly, reacted in an ice water bath at 0-5°C for 9 hours, washed and rotary evaporated to obtain an intermediate product; Step B2: Evenly mix the intermediate product and anhydrous ethanol-water solution at 60°C, cool to 50°C, add tea polyphenols and anhydrous ethanol, place in the dark, stir at 200 r / min for 12 hours, stand at 4°C for 24 hours, filter, wash, and vacuum dry to obtain a deodorizing finishing agent.

8. The deodorizing and antibacterial fabric according to claim 7, characterized in that: In step B1, the usage ratio of 2-chloro-4-hydroxybenzaldehyde, β-cyclodextrin and sodium hydroxide is 0.9-1.1 mol: 0.9-1.1 mol: 80 mL.

9. The deodorizing and antibacterial fabric according to claim 7, characterized in that: The usage ratio of the intermediate product, anhydrous ethanol-water solution, tea polyphenols and anhydrous ethanol in step B2 is 3.21-3.67 g:50 mL:1.19-1.35 g:25 mL, and the volume ratio of anhydrous ethanol to water in the anhydrous ethanol-water solution is 2:

1.

10. A production process for the deodorizing and antibacterial fabric according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Weigh the raw materials by weight, immerse 30-40 parts of cotton fiber and 20-30 parts of bamboo charcoal fiber in 1-7 parts of modified antibacterial agent, first soak at 42-46°C for 0.5-1h, then heat to 65-75°C and continue soaking for 1-2h, and then dry at 60-70°C for 3-5min to obtain radial antibacterial fiber; S2: Weigh the raw materials by weight, immerse 25-40 parts of cotton fiber and 25-45 parts of acrylic fiber in 1-10 parts of deodorizing finishing agent, soak at room temperature for 8-12 hours, and then dry at 50-60° C. for 10-20 minutes to obtain weft deodorizing fiber; S3: weaving the warp antibacterial fiber and the weft deodorizing fiber into an antibacterial and deodorizing layer; S4: The antibacterial and deodorizing layer is fixed between the base fabric layer and the fabric layer through weaving to obtain the deodorizing and antibacterial fabric.

Images