A blending process for antibacterial and breathable fabric

Abstract

The invention relates to a blending process for an antibacterial breathable fabric, belonging to the technical field of fabrics. The blending process comprises the following steps: S10, blending polyester yarn and nylon and knitting to obtain a pretreated fabric; S20, preparing a composite microcapsule, mixing the composite microcapsule with sodium octadecenoate, coconut shell carbon powder, waterborne polyurethane and dodecyl glucoside to obtain a composite coconut shell material; S30, using waterborne polyurethane, coconut oil, dihydroxymethylbutyric acid and distilled water to obtain a modified polyurethane; S40, preparing a finishing mixed solution, and finishing the finishing mixed solution on the pretreated fabric by padding to obtain a finished fabric. The invention prepares a composite microcapsule by compounding vegetable oil, and uses coconut shell carbon powder, composite microcapsule, sodium octadecenoate and dodecyl glucoside as raw materials, so that the finished fabric has outstanding antibacterial properties. The composite microcapsule and the waterborne polyurethane modified by coconut oil can make the prepared fabric have excellent air permeability.

Description

Technical Field

[0001] The invention belongs to the technical field of fabrics, and in particular relates to a blending process for antibacterial and breathable fabrics. Background Art

[0002] In modern life, people have higher and higher requirements for the quality and function of fabrics. At the same time, as people's health awareness continues to improve, antibacterial properties have become one of the important considerations for fabrics.

[0003] The growth and reproduction of bacteria on fabrics can pose a potential threat to people's health, especially in certain scenarios, such as underwear, sportswear, medical fabrics, etc., where antibacterial function is particularly critical. In addition, the breathability of fabrics is also an indispensable characteristic. Good breathability allows the skin to effectively exchange gas with the outside world, keeping the skin dry and comfortable, and avoiding skin problems caused by moisture accumulation. Some traditional fabrics often have difficulty in taking into account both antibacterial and breathable properties. There are cases where the antibacterial properties are good but the breathability is insufficient, or the breathability is good but the antibacterial properties are insufficient.

[0004] Therefore, it is of great practical significance to provide a fabric that is both antibacterial and breathable to meet consumers' needs for improving quality of life and health protection. Summary of the invention

[0005] The purpose of the present invention is to provide a blending process for antibacterial and breathable fabrics, which solves the problem of poor antibacterial and breathable properties of fabrics in the prior art.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A blending process for producing antibacterial and breathable fabrics, the blending process specifically comprising the following steps:

[0008] S10, blending polyester yarn and nylon and knitting to obtain a pretreated fabric;

[0009] S20, preparing a composite microcapsule, mixing the composite microcapsule with sodium octadecenoate, coconut shell carbon powder, waterborne polyurethane and dodecyl glucoside to obtain a composite coconut shell material;

[0010] S30, preparing modified polyurethane using waterborne polyurethane, coconut oil, dimethylolbutyric acid and distilled water;

[0011] S40, preparing a finishing mixed solution, and applying the finishing mixed solution to the pretreated fabric by padding to obtain a finished fabric product.

[0012] As a preferred technical solution of the present invention, step S10 specifically comprises: blending polyester yarn and nylon to obtain yarn, knitting and weaving the yarn using a 60-needle 38-inch knitting circular knitting machine to obtain a pretreated fabric.

[0013] Furthermore, the specification of the polyester yarn is 75D / 36F, and the specification of the nylon is 20D / 3F; the mass ratio of the polyester yarn to the nylon is 6-7:1-4.

[0014] As a preferred technical solution of the present invention, step S20 is specifically as follows:

[0015] S21, mixing Lygodium japonicum oil, Myrica dahurica oil, Peucedanum peucedanum oil and anhydrous ethanol and stirring evenly to obtain a mixed solution A; mixing an arabic gum aqueous solution and a gelatin aqueous solution evenly to obtain a mixed solution B;

[0016] S22, adding the mixed solution A to the mixed solution B while stirring, embedding in a temperature-controlled water bath, cooling, and temperature-controlled insulation to obtain a mixed solution C, vacuum filtering the mixed solution C, taking the filter residue for washing, drying the washed filter residue under temperature control, grinding, and sieving to obtain composite microcapsules;

[0017] S23, add coconut shell charcoal powder and waterborne polyurethane to sodium octadecenoate in sequence, mix evenly, control temperature and stir, and obtain mixed solution D; mix dodecyl glucoside and composite microcapsule evenly to obtain mixed solution E; mix mixed solution D and mixed solution E evenly, control temperature and stir, and cure at room temperature to obtain composite coconut shell material.

[0018] Lygodium japonicum oil: It is made from the whole plant by conventional steam distillation. Lygodium japonicum oil contains triterpenoids and flavonoids, has a broad-spectrum antibacterial effect, and can effectively inhibit the growth and reproduction of various pathogens; Primrose oil: It is made from its dried flower buds by conventional steam distillation. Primrose oil is rich in β-pinene, eucalyptol, citral, alkaloids, eugenol and other ingredients, has a certain fat solubility, can penetrate the bacterial cell membrane, and cause the leakage of substances in the bacterial cells, thereby affecting the normal physiological functions of the bacteria; Peucedanum pekinensis oil: It is made from its dried roots by conventional steam distillation. Peucedanum pekinensis oil contains isoanisole, limonene and other ingredients, which can inhibit and kill a variety of bacteria and fungi.

[0019] Coconut shell charcoal powder is a carbonized powder material made from coconut by high-temperature carbonization. It has the dual characteristics of physical adsorption and chemical adsorption. At the same time, the microporous structure of coconut shell charcoal powder can absorb moisture, prevent the growth of mold and bacteria in a humid environment, and has a certain bactericidal effect.

[0020] Furthermore, in step S21, the mass ratio of Lygodium japonicum oil, Myrica dahurica oil, Peucedanum peucedanum oil and anhydrous ethanol is 4-5:1-1.5:0.8-1:1.5-2; and the mass ratio of the gum arabic aqueous solution and the gelatin aqueous solution is 2-3:1-1.5.

[0021] Furthermore, in step S21, the mass fraction of the gum arabic aqueous solution is 15-18%; the mass fraction of the gelatin aqueous solution is 10-15%.

[0022] Furthermore, in step S22, the mass ratio of the mixed solution A to the mixed solution B is 1:1-1.2.

[0023] Furthermore, in step S22, the temperature of the temperature-controlled water bath embedding is 45-50°C; the cooling is cooling to room temperature; the temperature of the temperature-controlled insulation is 6-8°C, and the time is 22-24h; the filter residue cleaning is washing the filter residue with anhydrous ethanol 2-3 times; the temperature-controlled drying is drying at 45-50°C to constant weight; and the screening is sieving through a 100-mesh sieve.

[0024] Furthermore, in step S23, the mass ratio of sodium octadecenoate, coconut shell carbon powder and waterborne polyurethane is 4.5-5:30-32:20-22; the mass ratio of dodecyl glucoside and composite microcapsules is 1:1-1.2; and the mass ratio of mixed solution D and mixed solution E is 26-28:1-1.1.

[0025] Furthermore, the temperature of the temperature-controlled stirring in step S23 is 75-80° C., and the time is 30-40 min.

[0026] As a preferred technical solution of the present invention, step S30 is specifically as follows:

[0027] The aqueous polyurethane, coconut oil and dihydroxymethylbutyric acid are mixed evenly and stirred at a controlled temperature. After stirring, triethylamine is added to neutralize the solution to pH = 7, and then stirred. The solution is cooled to room temperature, and distilled water is slowly added with controlled speed stirring to obtain a modified polyurethane.

[0028] Furthermore, the mass ratio of the waterborne polyurethane, coconut oil, dimethylolbutyric acid and distilled water is 1:0.08-0.1:0.04-0.05:200-220.

[0029] Furthermore, the temperature of the temperature-controlled stirring is 75-80°C, and the time is 2-2.5h; the time of the re-stirring is 15-20min; the speed of the speed-controlled stirring is 2800-3000r / min, and the time is 20-30min.

[0030] As a preferred technical solution of the present invention, step S40 is specifically as follows:

[0031] The modified polyurethane and the composite coconut shell material are mixed evenly to obtain a finishing mixed liquid, and the finishing mixed liquid is applied to the pretreated fabric by a dipping and rolling method, and then the finished fabric is baked under controlled temperature.

[0032] Furthermore, the mass ratio of the modified polyurethane to the composite coconut shell material is 1:0.2-0.3.

[0033] Furthermore, the one-dipping-one-rolling conditions are: the amount of the finishing mixed liquid is 200g / L, the rolling rate is 70-80%; the temperature of the temperature-controlled baking is 100-110°C, and the time is 4-5min.

[0034] Beneficial effects of the present invention:

[0035] (1) The present invention prepares composite microcapsules by compounding Lygodium japonicum oil, Myrica dahurica oil and Peucedanum peucedanum oil, which respectively inhibit the growth and reproduction of pathogens, affect the normal physiological functions of bacteria, and inhibit and kill a variety of bacteria and fungi. The three different dimensions synergistically increase the antibacterial effect of the composite microcapsules;

[0036] The coconut shell charcoal powder, composite microcapsules, sodium octadecenoic acid and dodecyl glucoside added in the present invention, on the basis of the coconut shell charcoal powder itself having a certain antibacterial effect, use the composite microcapsules to assist in improving the overall antibacterial strength of the coconut shell charcoal powder. At the same time, on this basis, sodium octadecenoic acid effectively promotes the uniform distribution of some composite microcapsules in the coconut shell charcoal powder, and dodecyl glucoside effectively makes some composite microcapsules effectively dispersed in waterborne polyurethane, thereby increasing the antibacterial properties of the system.

[0037] (2) The core material of the composite microcapsules added in the present invention will become a vapor state during the baking process. At the same time, due to the influence of external factors during the baking process, the capsule wall of the composite microcapsule will rupture to release the vapor state core material, and the released vapor state core material can form micropores on the surface of the fabric, thereby achieving the purpose of air permeability. On this basis, the present invention adds coconut oil to modify the water-based polyurethane, increases the smoothness and regularity between the yarns of the fabric, reduces the resistance of air passing through the fabric, and thus further reduces the air permeability, effectively making the prepared fabric have excellent air permeability. DETAILED DESCRIPTION

[0038] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0039] The waterborne polyurethane used in the embodiment of the present invention is PU7108, which was purchased from Shanghai Belt New Material Technology Co., Ltd.

[0040] Example 1

[0041] A blending process for producing antibacterial and breathable fabrics, the blending process specifically comprising the following steps:

[0042] S10, blending polyester yarn with a specification of 75D / 36F and nylon with a specification of 20D / 3F at a mass ratio of 6.5:1 to obtain yarn, and knitting the yarn using a 60-needle 38-inch knitting circular knitting machine to obtain a pretreated fabric;

[0043] S21, mixing and stirring the Lygodium japonicum oil, the Myrica dasyphylla oil, the Peucedanum peucedanum oil and anhydrous ethanol to obtain a mixed solution A; mixing a 15% by mass aqueous solution of gum arabic and a 12% by mass aqueous solution of gelatin at a mass ratio of 3:1.5 to obtain a mixed solution B;

[0044] The mass ratio of the Lygodium japonicum oil, the Myrica dasyphylla oil, the Peucedanum peucedanum oil and the anhydrous ethanol is 5:1.5:0.8:1.5;

[0045] S22, adding the mixed solution A to the mixed solution B while stirring, embedding in a water bath at 49°C, cooling to room temperature, and keeping at 6°C for 22 hours to obtain a mixed solution C, vacuum filtering the mixed solution C, washing the filter residue twice with anhydrous ethanol, drying the washed filter residue at 50°C to constant weight, grinding, and passing through a 100-mesh sieve to obtain composite microcapsules;

[0046] The mass ratio of the mixed solution A to the mixed solution B is 1:1.2;

[0047] S23, add coconut shell charcoal powder and waterborne polyurethane to sodium octadecenoate in sequence, mix well, control the temperature at 75°C and stir for 35 minutes to obtain a mixed solution D; mix dodecyl glucoside and composite microcapsules to obtain a mixed solution E; mix the mixed solution D and the mixed solution E to obtain a composite coconut shell material, control the temperature at 75°C and stir for 30 minutes, and cure at room temperature;

[0048] The mass ratio of sodium octadecenoate, coconut shell carbon powder and waterborne polyurethane is 4.7:30:22; the mass ratio of dodecyl glucoside and composite microcapsules is 1:1; the mass ratio of mixed solution D and mixed solution E is 27:1;

[0049] S3, mixing waterborne polyurethane, coconut oil and dimethylolbutyric acid uniformly and stirring at 75°C for 2h, adding triethylamine to neutralize the solution to pH=7 after stirring, stirring for another 20min, cooling to room temperature, slowly adding distilled water and stirring at a speed of 2800r / min for 20min to obtain modified polyurethane;

[0050] The mass ratio of the waterborne polyurethane, coconut oil, dimethylolbutyric acid and distilled water is 1:0.09:0.045:200;

[0051] S4, the modified polyurethane and the composite coconut shell material are mixed evenly to obtain a finishing mixture, the finishing mixture is applied to the pretreated fabric by a dipping and rolling method, and then the temperature is controlled to 100 ° C and baked for 4 minutes to obtain a finished fabric;

[0052] The mass ratio of the modified polyurethane to the composite coconut shell material is 1:0.3; the one-immersion-one-rolling conditions are: the amount of the finishing mixed liquid is 200g / L, and the rolling rate is 70%.

[0053] Example 2

[0054] A blending process for producing antibacterial and breathable fabrics, the blending process specifically comprising the following steps:

[0055] S10, blending polyester yarn with a specification of 75D / 36F and nylon with a specification of 20D / 3F in a mass ratio of 7:2.5 to obtain yarn, and knitting the yarn using a 60-needle 38-inch knitting circular knitting machine to obtain a pretreated fabric;

[0056] S21, mixing and stirring the Lygodium japonicum oil, the Myrica dasyphylla oil, the Peucedanum peucedanum oil and anhydrous ethanol to obtain a mixed solution A; mixing a 16% aqueous solution of gum arabic and a 10% aqueous solution of gelatin at a mass ratio of 2.5:1.2 to obtain a mixed solution B;

[0057] The mass ratio of the Lygodium japonicum oil, the Myrica dasyphylla oil, the Peucedanum peucedanum oil and the anhydrous ethanol is 4.5:1.25:0.9:1.75;

[0058] S22, adding the mixed solution A to the mixed solution B while stirring, embedding in a water bath at a temperature of 45°C, cooling to room temperature, and keeping at a temperature of 7°C for 23 hours to obtain a mixed solution C, vacuum filtering the mixed solution C, washing the filter residue twice with anhydrous ethanol, drying the washed filter residue at a temperature of 45°C to constant weight, grinding, and passing through a 100-mesh sieve to obtain composite microcapsules;

[0059] The mass ratio of the mixed solution A to the mixed solution B is 1:1.1;

[0060] S23, add coconut shell charcoal powder and waterborne polyurethane to sodium octadecenoate in sequence, mix well, control the temperature at 78°C and stir for 30 min to obtain a mixed solution D; mix dodecyl glucoside and composite microcapsules to obtain a mixed solution E; mix the mixed solution D and the mixed solution E to obtain a composite coconut shell material, control the temperature at 78°C and stir for 35 min, and cure at room temperature;

[0061] The mass ratio of sodium octadecenoate, coconut shell carbon powder and waterborne polyurethane is 4.5:31:21; the mass ratio of dodecyl glucoside and composite microcapsules is 1:1.1; the mass ratio of mixed solution D and mixed solution E is 26:1.1;

[0062] S3, mixing waterborne polyurethane, coconut oil and dimethylolbutyric acid uniformly and stirring at 78°C for 2h, adding triethylamine to neutralize the solution to pH=7 after stirring, stirring for 15min, cooling to room temperature, slowly adding distilled water and stirring at a speed of 3000r / min for 30min to obtain modified polyurethane;

[0063] The mass ratio of the waterborne polyurethane, coconut oil, dimethylolbutyric acid and distilled water is 1:0.08:0.05:210;

[0064] S4, the modified polyurethane and the composite coconut shell material are mixed evenly to obtain a finishing mixture, the finishing mixture is applied to the pretreated fabric by a dipping and rolling method, and then the temperature is controlled at 105° C. and baked for 5 minutes to obtain a finished fabric;

[0065] The mass ratio of the modified polyurethane to the composite coconut shell material is 1:0.25; the one-immersion-one-rolling conditions are: the amount of the finishing mixed liquid is 200g / L, and the rolling rate is 75%.

[0066] Example 3

[0067] A blending process for producing antibacterial and breathable fabrics, the blending process specifically comprising the following steps:

[0068] S10, blending polyester yarn with a specification of 75D / 36F and nylon with a specification of 20D / 3F in a mass ratio of 6:4 to obtain yarn, and knitting the yarn using a 60-needle 38-inch knitting circular knitting machine to obtain a pretreated fabric;

[0069] S21, mixing and stirring the Lygodium japonicum oil, the Myrica dasyphylla oil, the Peucedanum peucedanum oil and anhydrous ethanol to obtain a mixed solution A; mixing an arabic gum aqueous solution with a mass fraction of 18% and a gelatin aqueous solution with a mass fraction of 15% in a mass ratio of 2:1 to obtain a mixed solution B;

[0070] The mass ratio of the Lygodium japonicum oil, the Myrica dasyphylla oil, the Peucedanum peucedanum oil and the anhydrous ethanol is 4:1:1:2;

[0071] S22, adding the mixed solution A to the mixed solution B while stirring, embedding in a water bath at 50°C, cooling to room temperature, and keeping at 8°C for 24 hours to obtain a mixed solution C, vacuum filtering the mixed solution C, washing the filter residue with anhydrous ethanol for 3 times, drying the washed filter residue at 48°C to constant weight, grinding, and passing through a 100-mesh sieve to obtain composite microcapsules;

[0072] The mass ratio of the mixed solution A to the mixed solution B is 1:1;

[0073] S23, add coconut shell charcoal powder and waterborne polyurethane to sodium octadecenoate in sequence, mix well, control the temperature at 80°C and stir for 40 minutes to obtain a mixed solution D; mix dodecyl glucoside and composite microcapsules to obtain a mixed solution E; mix the mixed solution D and the mixed solution E to obtain a composite coconut shell material, control the temperature at 80°C and stir for 40 minutes, and cure at room temperature;

[0074] The mass ratio of sodium octadecenoate, coconut shell carbon powder and waterborne polyurethane is 5:32:20; the mass ratio of dodecyl glucoside and composite microcapsules is 1:1.2; the mass ratio of mixed solution D and mixed solution E is 28:1;

[0075] S3, mixing waterborne polyurethane, coconut oil and dimethylolbutyric acid uniformly and stirring at 80°C for 2.5h, adding triethylamine to neutralize the solution to pH=7 after stirring, stirring for 17min, cooling to room temperature, slowly adding distilled water and stirring at a speed of 2900r / min for 25min to obtain modified polyurethane;

[0076] The mass ratio of the waterborne polyurethane, coconut oil, dimethylolbutyric acid and distilled water is 1:0.1:0.04:220;

[0077] S4, the modified polyurethane and the composite coconut shell material are mixed evenly to obtain a finishing mixture, the finishing mixture is applied to the pretreated fabric by a dipping and rolling method, and then the temperature is controlled at 110° C. and baked for 4.5 min to obtain a finished fabric;

[0078] The mass ratio of the modified polyurethane to the composite coconut shell material is 1:0.2; the one-immersion-one-rolling conditions are: the amount of the finishing mixed liquid is 200g / L, and the rolling rate is 80%.

[0079] Comparative Example 1

[0080] Compared with Example 3, the difference is that sodium octadecenoate is not added in Comparative Example 1, and the other parameters and operating steps remain unchanged.

[0081] Comparative Example 2

[0082] Compared with Example 3, the difference is that in Comparative Example 2, no dodecyl glucoside is added, and the other parameters and operating steps remain unchanged.

[0083] Comparative Example 3

[0084] Compared with Example 3, the difference is that in step S21 of Comparative Example 3, no Lygodium japonicum oil is added, the mass ratio of Forsythia suspensa oil, Peucedanum peucedanum oil and anhydrous ethanol is 3:3:2, and the other parameters and operating steps remain unchanged.

[0085] Comparative Example 4

[0086] Compared with Example 3, the difference is that in step S21 of Comparative Example 4, no formosan cymbidium oil is added, the mass ratio of Lygodium japonicum oil, Peucedanum peucedanum oil and anhydrous ethanol is 4.5:1.5:2, and the other parameters and operating steps remain unchanged.

[0087] Comparative Example 5

[0088] Compared with Example 3, the difference is that in step S21 of Comparative Example 5, no Peucedanum peucedanum oil is added, the mass ratio of Lygodium japonicum oil, Forsythia suspensa oil and anhydrous ethanol is 4.5:1.5:2, and the other parameters and operating steps remain unchanged.

[0089] Comparative Example 6

[0090] Compared with Example 3, the difference is that in Comparative Example 6, step S21 and step S22 are not performed, that is, composite microcapsules are not prepared, and composite microcapsules are not added in step S23, and the other parameters and operation steps remain unchanged.

[0091] Comparative Example 7

[0092] Compared with Example 3, the difference is that coconut oil is not added in step S3 of Comparative Example 7, and the other parameters and operation steps remain unchanged.

[0093] Test Example 1

[0094] According to the standard GB / T 20944.2-2007, the antibacterial rate of Staphylococcus aureus, Escherichia coli and Klebsiella pneumoniae was tested on the finished fabrics prepared in Examples 1-3 and Comparative Examples 1-6. The results are shown in Table 1.

[0095] Table 1

[0096] Staphylococcus aureus (%) Escherichia coli (%) Klebsiella pneumoniae (%) Example 1 ＞99 ＞99 98 Example 2 ＞99 98 98 Example 3 ＞99 ＞99 ＞99 Comparative Example 1 86 86 81 Comparative Example 2 83 82 77 Comparative Example 3 88 86 84 Comparative Example 4 85 84 80 Comparative Example 5 84 83 78 Comparative Example 6 58 56 52

[0097] It can be seen from Table 1 that the fabric product prepared by the present invention has outstanding antibacterial properties.

[0098] Test Example 2

[0099] According to the standard GB / T 5453-1997, the air permeability of the finished fabrics prepared in Examples 1-3 and Comparative Examples 6-7 was tested using a digital air permeability meter. The results are shown in Table 2.

[0100] Table 2

[0101] <![CDATA[Average air permeability / mm·s -1 > Example 1 1292.168 Example 2 1278.647 Example 3 1305.458 Comparative Example 6 962.671 Comparative Example 7 1019.480

[0102] It can be seen from Table 2 that the finished fabric produced by the present invention has excellent air permeability.

[0103] In the description of the specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0104] The above contents are merely examples and explanations of the present invention. Those skilled in the art 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 invention or exceed the scope defined by the claims, they shall all fall within the protection scope of the present invention.

Claims

1. A blending process for antibacterial breathable fabrics, characterized in that: The blending process specifically comprises the following steps: S10, blending polyester yarn and nylon and knitting to obtain a pretreated fabric; S20, preparing a composite microcapsule, mixing the composite microcapsule with sodium octadecenoate, coconut shell carbon powder, waterborne polyurethane and dodecyl glucoside to obtain a composite coconut shell material; S30, preparing modified polyurethane using waterborne polyurethane, coconut oil, dimethylolbutyric acid and distilled water; S40, preparing a finishing mixed solution, and applying the finishing mixed solution to the pretreated fabric by padding to obtain a finished fabric; The step S20 is specifically as follows: S21, mixing and stirring the Lygodium japonicum oil, the Myrica dasyphylla oil, the Peucedanum peucedanum oil and anhydrous ethanol to obtain a mixed solution A; mixing the gum arabic aqueous solution and the gelatin aqueous solution to obtain a mixed solution B; S22, adding the mixed solution A to the mixed solution B while stirring, embedding in a temperature-controlled water bath, cooling, and temperature-controlled insulation to obtain a mixed solution C, vacuum filtering the mixed solution C, taking the filter residue for washing, drying the washed filter residue under temperature control, grinding, and sieving to obtain composite microcapsules; S23, add coconut shell charcoal powder and waterborne polyurethane to sodium octadecenoate in sequence, mix evenly, control temperature and stir, and obtain mixed solution D; mix dodecyl glucoside and composite microcapsule evenly to obtain mixed solution E; mix mixed solution D and mixed solution E evenly, control temperature and stir, and cure at room temperature to obtain composite coconut shell material.

2. The blending process of the antibacterial breathable fabric according to claim 1, characterized in that: In step S21, the mass ratio of Lygodium japonicum oil, Myrica dahurica oil, Peucedanum peucedanum oil and anhydrous ethanol is 4-5:1-1.5:0.8-1:1.5-2; the mass ratio of the gum arabic aqueous solution and the gelatin aqueous solution is 2-3:1-1.

5.

3. The blending process of the antibacterial breathable fabric according to claim 1, characterized in that: In step S22, the mass ratio of the mixed solution A to the mixed solution B is 1:1-1.

2.

4. The blending process of the antibacterial breathable fabric according to claim 1, characterized in that: In step S23, the mass ratio of sodium octadecenoate, coconut shell charcoal powder and waterborne polyurethane is 4.5-5:30-32:20-22; the mass ratio of dodecyl glucoside and composite microcapsules is 1:1-1.2; the mass ratio of mixed solution D and mixed solution E is 26-28:1-1.

1.

5. The blending process of the antibacterial breathable fabric according to claim 1, characterized in that: The step S30 is specifically as follows: The aqueous polyurethane, coconut oil and dihydroxymethylbutyric acid are mixed evenly and stirred at a controlled temperature. After stirring, triethylamine is added to neutralize the solution to pH = 7, and then stirred. The solution is cooled to room temperature, and distilled water is slowly added with controlled speed stirring to obtain a modified polyurethane.

6. The blending process of the antibacterial breathable fabric according to claim 5, characterized in that: The mass ratio of the waterborne polyurethane, coconut oil, dimethylolbutyric acid and distilled water is 1:0.08-0.1:0.04-0.05:200-220.

7. The blending process of the antibacterial breathable fabric according to claim 1, characterized in that: The step S40 is specifically as follows: The modified polyurethane and the composite coconut shell material are mixed evenly to obtain a finishing mixed liquid, and the finishing mixed liquid is applied to the pretreated fabric by a dipping and rolling method, and then the finished fabric is baked under controlled temperature.

8. The blending process of the antibacterial breathable fabric according to claim 7, characterized in that: The mass ratio of the modified polyurethane to the composite coconut shell material is 1:0.2-0.

3.

9. The blending process of the antibacterial breathable fabric according to claim 7, characterized in that: The one-dipping-one-rolling conditions are: the amount of the finishing mixed liquid is 200g / L, the rolling rate is 70-80%; the temperature of the temperature-controlled baking is 100-110°C, and the time is 4-5min.