Bacteriostatic breathable natural bamboo fiber composite fabric and preparation method thereof

Abstract

The invention relates to an antibacterial breathable natural bamboo fiber composite fabric and a preparation method thereof, and belongs to the field of textile materials.The preparation method comprises the following steps that bamboo materials are selected to be made into bamboo chips, and coarse natural bamboo fibers are obtained through high-temperature cooking and enzyme treatment; mixing the bamboo fibers subjected to enzyme treatment with the antibacterial finishing liquid, and rolling to enable the antibacterial finishing liquid to permeate into the bamboo fibers to form antibacterial bamboo fibers; uniformly coating the modified emulsified oil on the antibacterial natural bamboo fibers to form modified natural bamboo fibers; blending the modified natural bamboo fibers and skeleton fibers through a ring spinning technology to obtain natural bamboo fiber blended yarns; finally, the natural bamboo fiber blended yarn, the pure linen yarn and the ring spinning cotton yarn are slashed, the antibacterial breathable natural bamboo fiber composite fabric is prepared by adopting a plain weaving technology, and the fabric has good breathability and excellent antibacterial performance and can efficiently inhibit growth of bacteria and protect human health.

Description

Technical Field

[0001] The invention relates to the field of textile materials, in particular to an antibacterial and breathable bamboo fiber composite fabric and a preparation method thereof. Background Art

[0002] Bamboo fiber fabric is a kind of textile made of bamboo fiber. Its background technology can be traced back to the ancient textile technology, but the production of modern bamboo fiber fabric combines modern technology with traditional technology. Bamboo fiber is a natural and renewable fiber with good moisture absorption, strong wear resistance and good dyeability. These characteristics make bamboo fiber fabric widely used in clothing, bedding, sanitary products and other fields.

[0003] Bamboo fiber fabrics have certain antibacterial properties, which can inhibit the growth of bacteria and mites, reduce mold and odor, and protect human health to a certain extent, but their antibacterial performance is often not enough to meet the needs of specific application scenarios, such as medical textiles, sports equipment, etc. In addition, the softness and comfort of bamboo fiber are its significant advantages, but when bamboo fiber is subjected to external forces, its breaking strength is low, that is, when subjected to tension or compression, the fiber is prone to break. At the same time, the elongation at break of bamboo fiber is also low, which means that when subjected to external forces, the fiber has a small deformation amount and is easily broken, which limits its use in application fields that require higher mechanical properties, such as high-strength industrial textiles or sports equipment. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented by the following technical scheme. The present invention provides a method for preparing an antibacterial and breathable bamboo fiber composite fabric, comprising the following steps:

[0005] S1. Select bamboo materials. First, select suitable bamboo materials and cut them into uniform bamboo slices. Then, place the bamboo slices in a high-temperature cooking environment and cook them at 90°C to 100°C for 70 to 90 minutes. After natural cooling, obtain the cooked bamboo slices. The cooked bamboo slices are subjected to horizontal continuous rolling to separate the coarse bamboo fibers. Put the coarse bamboo fibers into a reactor, add a treatment liquid, pressurize the reactor so that the temperature can reach 140°C to 160°C, react for 40min to 60min, and then instantly reduce the pressure to standard atmospheric pressure so that the coarse bamboo fibers explode in the reactor and defibrinate to form defibrinated bamboo fibers. The temperature in the reactor is cooled to 40°C to 50°C, and then filtered and washed to remove impurities and excess treatment liquid in the defibrinated bamboo fibers. The obtained filtered fibers are dried under reduced pressure, wherein the vacuum degree is carefully controlled within the range of -0.03 MPa to -0.02 MPa, and the drying time is 5 to 7 hours. The dried defibrinated bamboo fibers are placed in a blast oven at 90°C to 110°C for a final drying process, and the time is 30 to 40 minutes, thereby obtaining soft and fully dried defibrinated bamboo fibers;

[0006] S2, mixing cellulase, xylanase and water to obtain enzyme solution, mixing the dried defibrinated bamboo fibers obtained in S1 with the enzyme solution, treating with enzymes at 45° C. to 55° C. and pH 4.5 to 5.5 for 8 to 12 hours, filtering and naturally air-drying after enzyme treatment to obtain enzyme-treated bamboo fibers;

[0007] S3: The enzyme-treated bamboo fibers prepared in S2 are completely immersed in the modified emulsified oil emulsion for 2 to 3 days, and the enzyme-treated bamboo fibers after immersion are rolled by a rolling mill to remove excess modified emulsified oil emulsion and ensure that the modified emulsified oil emulsion is evenly penetrated into the enzyme-treated bamboo fibers, and the modified bamboo fibers are naturally air-dried to obtain the modified bamboo fibers; the modified bamboo fibers are washed with water to remove unreacted emulsifiers and impurities, and are placed in a 90° C. to 110° C. blast oven for drying for 30 to 40 minutes, and the modified bamboo fibers are blended with skeleton fibers by ring spinning technology to obtain bamboo fiber blended yarns with a fineness of 40 English counts;

[0008] S4: 40-ne bamboo fiber blended yarn, 20-ne pure linen yarn and 32-ne ring-spun cotton yarn were sized, and then the cotton yarn and bamboo fiber blended yarn were used as warp yarns, and the cotton yarn and bamboo fiber blended yarn were arranged alternately in a ratio of 3:1. Linen yarn was used as all weft yarns, and plain weaving technology was adopted, that is, each warp yarn alternately crossed up and down on the weft yarn, and the weaving speed was controlled within 500 picks / minute to produce antibacterial and breathable bamboo fiber composite fabrics.

[0009] The bamboo material is any one of moso bamboo, cycad bamboo, arrow bamboo, green bamboo and blue bamboo.

[0010] The enzyme solution consists of 1 to 3 parts of cellulase, 1 to 2 parts of xylanase, 3 to 5 parts of citric acid and 60 to 80 parts of water in parts by weight, and the mass ratio of the dried defibrinated bamboo fibers to the enzyme solution is 1:1 to 2.

[0011] The treatment liquid consists of 11 to 13 parts of hydrogen peroxide, 3 to 5 parts of sodium bicarbonate, 1 to 3 parts of sodium sulfite and 1 to 3 parts of sodium silicate in terms of mass fractions, and the mass ratio of the crude bamboo fiber to the treatment liquid is 1:2 to 3.

[0012] The modified emulsified oil emulsion is prepared by uniformly mixing 3-5 parts of SCJ-2000 antibacterial finishing agent, 1-3 parts of silane coupling agent, 1-2 parts of organic titanate coupling agent, 0.5-2 parts of polydimethylsiloxane, 3-5 parts of surfactant, 20-30 parts of vegetable oil and 20-40 parts of water by weight.

[0013] The SCJ-2000 antibacterial finishing agent in the modified emulsified oil emulsion provides a lasting antibacterial effect and inhibits the growth of bacteria, fungi and molds; polydimethylsiloxane can reduce the friction between fibers and improve wear resistance, while giving the material flexibility and smooth feel. In addition, polydimethylsiloxane forms a protective film on the fiber surface, providing waterproof and antifouling effects, and facilitating cleaning and maintenance; silane coupling agents and organic titanate coupling agents can form a hydrophobic surface, giving bamboo fibers and composite materials thereof good waterproof properties. By integrating multiple components, adding natural ingredients, vegetable oil, surfactants, and water to form a multi-phase modified emulsified oil emulsion, multifunctional properties are provided for bamboo fibers.

[0014] The silane coupling agent is any one of γ-aminopropyltriethoxysilane, methyltrimethoxysilane and octyltriethoxysilane.

[0015] The organic titanate coupling agent is any one of tetraisopropyl di(dioctyl phosphate) titanate and isopropyl tri(dioctyl pyrophosphate) titanate.

[0016] The vegetable oil is any one of soybean oil, palm oil and rapeseed oil.

[0017] The skeleton fiber is any one of cotton fiber, polyester fiber and lyocell fiber, and the skeleton fiber accounts for 10% to 50% of the mass of the original bamboo fiber.

[0018] The present invention provides an antibacterial breathable bamboo fiber composite fabric and a preparation method thereof.

[0019] Beneficial effects:

[0020] 1. The present invention is not limited to the use of a single type of bamboo, but can use a variety of bamboo, such as moso bamboo, cycad bamboo, arrow bamboo, green bamboo, blue bamboo, etc., which increases the diversity and selectivity of raw materials. Bamboo fiber is a natural and renewable fiber. Its production process is combined with traditional technology, which meets the current needs for environmental protection and sustainable development.

[0021] 2. Due to the characteristics of bamboo fibers themselves and the plain weaving technology of the fabric, the antibacterial and breathable bamboo fiber composite fabric prepared by the present invention has good air permeability and provides a comfortable wearing experience.

[0022] 3. The antibacterial breathable bamboo fiber composite fabric of the present invention has excellent antibacterial properties, can effectively inhibit bacterial growth, protect human health, and reduce the generation of mold and odor.

[0023] 4. The antibacterial and breathable bamboo fiber composite fabric of the present invention exhibits high breaking strength and breaking elongation under both dry and wet conditions. DETAILED DESCRIPTION

[0024] 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.

[0025] Embodiment 1:

[0026] A method for preparing an antibacterial and breathable bamboo fiber composite fabric comprises the following steps:

[0027] S1. Selecting moso bamboo, splitting the bamboo into bamboo slices, steaming at 90°C to 100°C for 70 to 90 minutes, naturally cooling to obtain steamed bamboo slices, and rolling the steamed bamboo slices horizontally to obtain coarse bamboo fibers; putting the coarse bamboo fibers into a reactor, adding a treatment liquid composed of 12 parts of hydrogen peroxide, 4 parts of sodium bicarbonate, 2 parts of sodium sulfite, and 2 parts of sodium silicate, wherein the mass ratio of the coarse bamboo fibers to the treatment liquid is 1:2 to 3, pressurizing the reactor so that the temperature can reach 140°C to 160°C, and reacting for 40 After 60 minutes, the pressure is instantly reduced to standard atmospheric pressure to make the crude bamboo fibers explode in the reactor and defibrinate to form defibrinated bamboo fibers. The temperature in the reactor is cooled to 40°C to 50°C, filtered, and the filtered defibrinated bamboo fibers are vacuum dried under reduced pressure. The vacuum degree is controlled at -0.03MPa to -0.02MPa. After vacuum drying for 5 to 7 hours, the defibrinated bamboo fibers are placed in a 90°C to 110°C blast oven and dried for 30 to 40 minutes to obtain dried defibrinated bamboo fibers.

[0028] S2, 2 parts of cellulase, 1.5 parts of xylanase, 2.5 parts of citric acid and 75 parts of water are mixed to form an enzyme solution, the dried defibrated bamboo fibers obtained in step S1 are mixed with the enzyme solution, the mass ratio of the dried defibrated bamboo fibers to the enzyme solution is 1:1-2, and the enzyme treatment is carried out at a temperature of 45°C-55°C and a pH value of 4.5-5.5 for 10 hours. After the enzyme treatment is completed, the excess enzyme solution is removed by filtering, and then the bamboo fibers are placed in a 90°C-110°C forced air oven and dried for 3-5 hours to obtain enzyme-treated bamboo fibers.

[0029] S3: 4 parts of SCJ-2000 antibacterial finishing agent, 1 part of silane coupling agent (methyltrimethoxysilane), 2 parts of organic titanate coupling agent (isopropyl tri(dioctyl pyrophosphate) titanate), 2 parts of polydimethylsiloxane, 1 part of nano silver powder, 3 parts of surfactant, 55 parts of palm oil and 25 parts of water were mixed evenly using a high shear force stirrer to prepare a modified emulsified oil emulsion. The enzyme-treated bamboo fibers prepared in S2 are completely immersed in the modified emulsified oil emulsion for 2 to 3 days, and the enzyme-treated bamboo fibers after immersion are rolled by a rolling mill to remove excess modified emulsified oil emulsion and ensure that the modified emulsified oil emulsion is evenly penetrated into the enzyme-treated bamboo fibers, and the modified bamboo fibers are obtained after natural air drying; the modified bamboo fibers are washed with water to remove unreacted emulsifiers and impurities, and are placed in a 90°C to 110°C blast oven for drying for 30 to 40 minutes, and the modified bamboo fibers are blended with skeleton fibers by ring spinning technology to obtain bamboo fiber blended yarns with a fineness of 40 English counts;

[0030] S4: 40-ne bamboo fiber blended yarn, 20-ne pure linen yarn and 32-ne ring-spun cotton yarn were sized, and then the cotton yarn and bamboo fiber blended yarn were used as warp yarns, and the cotton yarn and bamboo fiber blended yarn were arranged alternately in a ratio of 3:1. Linen yarn was used as all weft yarns, and plain weaving technology was adopted, that is, each warp yarn alternately crossed up and down on the weft yarn, and the weaving speed was controlled within 500 picks / minute to produce antibacterial and breathable bamboo fiber composite fabrics.

[0031] Embodiment 2:

[0032] A method for preparing an antibacterial and breathable bamboo fiber composite fabric comprises the following steps:

[0033] Bamboo material selection: Choose bamboo;

[0034] The treatment solution consists of 12 parts of hydrogen peroxide, 4 parts of sodium bicarbonate, 2 parts of sodium sulfite and 2 parts of sodium silicate;

[0035] Enzyme solution composition: 1 part of cellulase, 2 parts of xylanase, 4 parts of citric acid and 65 parts of water;

[0036] Modified emulsified oil emulsion composition: 3 parts of SCJ-2000 antibacterial finishing agent, 1 part of silane coupling agent (methyl trimethoxy silane), 2 parts of organic titanate coupling agent (isopropyl tri (dioctyl pyrophosphate) titanate), 2 parts of polydimethylsiloxane, 1 part of nano silver powder, 3 parts of surfactant, 55 parts of palm oil, and 25 parts of water;

[0037] Skeleton fiber: polyester fiber, accounting for 20% of the mass of bamboo fiber.

[0038] Embodiment 3:

[0039] A method for preparing an antibacterial and breathable bamboo fiber composite fabric comprises the following steps:

[0040] Bamboo material selection: Arrow bamboo;

[0041] Treatment liquid composition: 13 parts of hydrogen peroxide, 5 parts of sodium bicarbonate, 3 parts of sodium sulfite, 3 parts of sodium silicate;

[0042] Enzyme solution composition: 3 parts of cellulase, 2 parts of xylanase, 2 parts of citric acid, 80 parts of water;

[0043] Modified emulsified oil emulsion composition: 5 parts of SCJ-2000 antibacterial finishing agent, 3 parts of octyl triethoxysilane, 2 parts of tetraisopropyl di(dioctyl phosphate) titanate, 2 parts of polydimethylsiloxane, 5 parts of surfactant, 30 parts of rapeseed oil, and 40 parts of water;

[0044] Skeleton fiber: Lyocell fiber, accounting for 40% of the mass of bamboo fiber.

[0045] Embodiment 4:

[0046] A method for preparing an antibacterial and breathable bamboo fiber composite fabric comprises the following steps:

[0047] Bamboo material selection: green bamboo;

[0048] Treatment liquid composition: 12 parts of hydrogen peroxide, 4 parts of sodium bicarbonate, 2 parts of sodium sulfite, 2 parts of sodium silicate;

[0049] Enzyme solution composition: 2 parts of cellulase, 1.5 parts of xylanase, 3 parts of citric acid, 75 parts of water;

[0050] Modified emulsified oil emulsion composition: 4 parts of SCJ-2000 antibacterial finishing agent, 2 parts of γ-aminopropyl triethoxysilane, 1.5 parts of isopropyl tri(dioctyl pyrophosphate) titanate, 1 part of polydimethylsiloxane, 4 parts of surfactant, 25 parts of soybean oil, and 35 parts of water;

[0051] Skeleton fiber: A mixture of cotton fiber and polyester fiber, each accounting for 25% of the mass of bamboo fiber.

[0052] Embodiment 5:

[0053] A method for preparing an antibacterial and breathable bamboo fiber composite fabric comprises the following steps:

[0054] Bamboo material selection: green bamboo;

[0055] Treatment liquid composition: 12 parts of hydrogen peroxide, 4 parts of sodium bicarbonate, 2 parts of sodium sulfite, 2 parts of sodium silicate;

[0056] Enzyme solution composition: 2.5 parts of cellulase, 1.5 parts of xylanase, 2.5 parts of citric acid, 72.5 parts of water;

[0057] Modified emulsified oil emulsion composition: 3 parts of SCJ-2000 antibacterial finishing agent, 1.5 parts of methyltrimethoxysilane, 1.5 parts of tetraisopropyl di(dioctyl phosphate) titanate, 1.5 parts of polydimethylsiloxane, 3.5 parts of surfactant, 25 parts of palm oil, and 30 parts of water;

[0058] Skeleton fiber: Lyocell fiber, accounting for 10% of the mass of bamboo fiber.

[0059] Embodiment 6:

[0060] A method for preparing an antibacterial and breathable bamboo fiber composite fabric comprises the following steps:

[0061] Bamboo material selection: Moso bamboo;

[0062] Treatment liquid composition: 13 parts of hydrogen peroxide, 5 parts of sodium bicarbonate, 3 parts of sodium sulfite, 3 parts of sodium silicate;

[0063] Enzyme solution composition: 3 parts of cellulase, 2 parts of xylanase, 3 parts of citric acid, 78 parts of water;

[0064] Modified emulsified oil emulsion composition: 5 parts of SCJ-2000 antibacterial finishing agent, 3 parts of octyl triethoxysilane, 2 parts of isopropyl tri(dioctyl pyrophosphate) titanate, 2 parts of polydimethylsiloxane, 5 parts of surfactant, 30 parts of rapeseed oil, and 40 parts of water;

[0065] Skeleton fiber: cotton fiber, accounting for 50% of the mass of bamboo fiber.

[0066] Comparative Example 1:

[0067] The main difference between Comparative Example 1 and Example 1 is that no antibacterial finishing liquid is used in step S3 of Comparative Example 1. In addition, Comparative Example 1 is consistent with Example 1 in other aspects, including but not limited to raw material ratio, preparation method, operating conditions, etc., and all follow the specific steps and parameters described in Example 1.

[0068] Comparative Example 2:

[0069] The main difference between Comparative Example 2 and Example 1 is that modified emulsified oil is not used in step S3 of Comparative Example 2. In addition, Comparative Example 2 is consistent with Example 1 in other aspects, including but not limited to raw material ratio, preparation method, operating conditions, etc., and all follow the specific steps and parameters described in Example 1.

[0070] Comparative Example 3:

[0071] The main difference between Comparative Example 3 and Example 1 is that no antibacterial finishing liquid and modified emulsified oil are used in step S3 of Comparative Example 3. In addition, Comparative Example 3 is consistent with Example 1 in other aspects, including but not limited to raw material ratio, preparation method, operating conditions, etc., and all follow the specific steps and parameters described in Example 1.

[0072] Comparative Example 4:

[0073] The main difference between Comparative Example 4 and Example 1 is that in step S3 of Comparative Example 4, the modified bamboo fiber is not blended with the fiber skeleton, and the modified bamboo fiber is directly made into a 40-ne yarn as a weft for weaving. In addition, Comparative Example 4 is consistent with Example 1 in other aspects, including but not limited to the raw material ratio, preparation method, operating conditions, etc., and all follow the specific steps and parameters described in Example 1.

[0074] Tensile performance test: The 40-neg bamboo fiber blended yarn prepared in Examples 1-6, the 40-neg yarn made of modified bamboo fiber in Comparative Example 4, the 40-neg yarn made of crude bamboo fiber prepared in step S1 of the embodiment, the 40-inch yarn made of polyester fiber and the 40-inch yarn made of lyocell fiber were tested. The test method refers to GB / T-24218.3-2010 "Test methods for textiles and nonwovens Part 3: Determination of breaking strength and breaking elongation". The strength performance of the sample was measured using a FAVIMAT-BOBOT2 fully automatic single fiber universal tester. No less than 30 samples were tested and the test average value was taken. The test results are shown in Table 1:

[0075] Table 1

[0076]

[0077]

[0078] Antibacterial performance test: According to GB / T20944.3-2008 Textile Antibacterial Performance Evaluation Part 3: Oscillation Method, using Escherichia coli as the experimental bacteria, the antibacterial breathable bamboo fiber composite fabrics prepared in Examples 1-6 and Comparative Examples 1-3 were tested. The test results are shown in Table 2:

[0079] Table 2

[0080] sample Antibacterial rate Example 1 97.06 Example 2 97.12 Example 3 97.62 Example 4 96.97 Example 5 96.21 Example 6 97.61 Comparative Example 1 79.20 Comparative Example 2 90.16 Comparative Example 3 57.31

[0081] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for preparing an antibacterial and breathable bamboo fiber composite fabric, characterized in that: The following steps are involved: S1, select bamboo, cut the bamboo into bamboo slices, cook at high temperature at 90℃~100℃ for 70~90min, naturally cool to obtain cooked bamboo slices, and perform horizontal continuous rolling on the cooked bamboo slices to open the fibers to obtain crude bamboo fibers; put the crude bamboo fibers into a reactor, add a treatment liquid, pressurize the reactor so that the temperature can reach 140℃~160℃, react for 40min~60min, and then instantly reduce the pressure to standard atmospheric pressure to make the crude bamboo fibers explode in the reactor and defibrinate to form defibrinated bamboo fibers, cool the temperature in the reactor to 40℃~50℃, filter, and perform reduced pressure vacuum drying on the filtered defibrinated bamboo fibers, with the vacuum degree controlled at -0.03MPa~-0.02MPa, and after vacuum drying for 5~7h, put the defibrinated bamboo fibers into a 90℃~110℃ blast oven for drying for 30~40min to obtain dried defibrinated bamboo fibers; S2, mixing the dried defibrinated bamboo fibers obtained in S1 with the enzyme solution, treating them with enzymes at 45° C. to 55° C. and pH 4.5 to 5.5 for 8 to 12 hours, filtering and naturally air-drying to obtain enzyme-treated bamboo fibers after the enzyme treatment; S3: The enzyme-treated bamboo fibers prepared in S2 are completely immersed in the modified emulsified oil emulsion for 2 to 3 days, and the enzyme-treated bamboo fibers after immersion are rolled by a rolling mill to remove excess modified emulsified oil emulsion and ensure that the modified emulsified oil emulsion is evenly penetrated into the enzyme-treated bamboo fibers, and the modified bamboo fibers are naturally air-dried to obtain the modified bamboo fibers; the modified bamboo fibers are washed with water to remove unreacted emulsifiers and impurities, and are placed in a 90° C. to 110° C. blast oven for drying for 30 to 40 minutes, and the modified bamboo fibers are blended with skeleton fibers by ring spinning technology to obtain bamboo fiber blended yarns with a fineness of 40 English counts; S4: 40-ne bamboo fiber blended yarn, 20-ne pure linen yarn and 32-ne ring-spun cotton yarn were sized, and then the cotton yarn and bamboo fiber blended yarn were used as warp yarns, and the cotton yarn and bamboo fiber blended yarn were arranged alternately in a ratio of 3:

1. Linen yarn was used as all weft yarns, and plain weaving technology was adopted, that is, each warp yarn alternately crossed up and down on the weft yarn, and the weaving speed was controlled within 500 picks / minute to produce antibacterial and breathable bamboo fiber composite fabrics.

2. The method for preparing an antibacterial breathable bamboo fiber composite fabric according to claim 1, characterized in that: The bamboo material is any one of moso bamboo, cycad bamboo, arrow bamboo, green bamboo and blue bamboo.

3. The method for preparing an antibacterial breathable bamboo fiber composite fabric according to claim 1, characterized in that: The treatment liquid consists of 11 to 13 parts of hydrogen peroxide, 3 to 5 parts of sodium bicarbonate, 1 to 3 parts of sodium sulfite and 1 to 3 parts of sodium silicate in terms of mass fractions, and the mass ratio of the crude bamboo fiber to the treatment liquid is 1:2 to 3.

4. The method for preparing an antibacterial breathable bamboo fiber composite fabric according to claim 1, characterized in that: The enzyme solution consists of 1 to 3 parts of cellulase, 1 to 2 parts of xylanase, 3 to 5 parts of citric acid and 60 to 80 parts of water in parts by weight, and the mass ratio of the dried defibrinated bamboo fibers to the enzyme solution is 1:1 to 2.

5. The method for preparing an antibacterial breathable bamboo fiber composite fabric according to claim 1, characterized in that: The modified emulsified oil emulsion is prepared by uniformly mixing 3-5 parts of SCJ-2000 antibacterial finishing agent, 1-3 parts of silane coupling agent, 1-2 parts of organic titanate coupling agent, 0.5-2 parts of polydimethylsiloxane, 3-5 parts of surfactant, 20-30 parts of vegetable oil and 20-40 parts of water by weight.

6. The method for preparing an antibacterial breathable bamboo fiber composite fabric according to claim 4, characterized in that: The silane coupling agent is any one of γ-aminopropyltriethoxysilane, methyltrimethoxysilane and octyltriethoxysilane.

7. The method for preparing an antibacterial breathable bamboo fiber composite fabric according to claim 4, characterized in that: The organic titanate coupling agent is any one of tetraisopropyl di(dioctyl phosphate) titanate and isopropyl tri(dioctyl pyrophosphate) titanate.

8. The method for preparing an antibacterial breathable bamboo fiber composite fabric according to claim 4, characterized in that: The vegetable oil is any one of soybean oil, palm oil and rapeseed oil.

9. The method for preparing an antibacterial breathable bamboo fiber composite fabric according to claim 4, characterized in that: The skeleton fiber is any one of cotton fiber, polyester fiber and lyocell fiber, and the skeleton fiber accounts for 10% to 50% of the mass of the original bamboo fiber.

10. An antibacterial and breathable bamboo fiber composite fabric, characterized in that: The antibacterial and breathable bamboo fiber composite fabric is prepared by the preparation method of any one of claims 1 to 9.

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