Antibacterial aromatic microfiber suede fabric and preparation method thereof

Abstract

The invention belongs to the technical field of new materials in textile engineering, and provides an antibacterial aromatic microfiber suede fabric and a preparation method thereof. The preparation method comprises the following steps: putting a fabric into a 2-methylimidazole solution for dipping treatment; after the dipping treatment is finished, adding a zinc source solution into a 2-methylimidazole solution for reaction to obtain a fabric with MOF nanorods growing on the surface; depositing the electrostatic spinning nanofibers loaded with the aromatic essential oil on a fabric with MOF nanorods growing on the surface to obtain an antibacterial aromatic spinning base cloth layer; and bonding the antibacterial aromatic textile base cloth layer on the microfiber suede layer to obtain the antibacterial aromatic microfiber suede fabric. The antibacterial fragrant microfiber suede fabric prepared by the method is applied to an automotive interior material, so that the automotive interior material has better antibacterial performance and fragrance release function.

Description

Technical Field

[0001] The invention relates to the technical field of new materials for textile engineering, and in particular to an antibacterial aromatic microfiber suede-like fabric and a preparation method thereof. Background Art

[0002] Microfiber suede-like fabrics for car decoration, such as headrests, neck pillows and waist supports, are in close contact with the body of the driver and passengers and are easily contaminated by body secretions such as sweat, sebum and oil. Considering that these products are not often washed and replaced, and the closed space inside the car provides a suitable environment for the reproduction of harmful microorganisms. Some bacteria react with pollutants to produce low-level fatty acids (such as nonanoic acid and decanoic acid) and volatile organic compounds, which in turn produce odors. This situation not only affects the comfort of driving, but more importantly, it may pose a threat to the health of the driver and passengers. Therefore, it has become particularly urgent to develop microfiber suede-like fabrics for car decoration with antibacterial and deodorizing functions. Summary of the invention

[0003] In view of this, the present invention provides an antibacterial aromatic microfiber suede-like fabric and a preparation method thereof, the purpose of which is to solve the technical problems of poor antibacterial effect and short fragrance persistence of existing antibacterial aromatic materials.

[0004] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions: The invention provides an antibacterial aromatic microfiber suede-like fabric. The antibacterial aromatic microfiber suede-like fabric comprises a microfiber suede-like layer and an antibacterial aromatic textile base fabric layer.

[0005] The present invention provides a method for preparing the above-mentioned antibacterial aromatic microfiber suede-like fabric, comprising the following steps: S1, putting the fabric into 2-methylimidazole solution for immersion treatment; S2, after the immersion treatment is completed, the zinc source solution is added into the 2-methylimidazole solution to react to obtain a fabric with MOF nanorods growing on the surface; S3, depositing the electrospun nanofibers loaded with aromatic essential oils on the fabric with MOF nanorods growing on the surface to obtain an antibacterial aromatic textile base fabric layer; S4, bonding the antibacterial aromatic textile base fabric layer to the microfiber suede-like layer to obtain the antibacterial aromatic microfiber suede-like fabric.

[0006] Furthermore, in step S1, the fabric includes woven fabric, knitted fabric or non-woven fabric.

[0007] Furthermore, in step S1, the concentration of the 2-methylimidazole solution is 0.2-0.5 mol / L, and the immersion treatment time is 3-10 min.

[0008] Furthermore, in step S2, the zinc source solution includes zinc acetate solution, zinc nitrate solution or zinc chloride solution, and the concentration of the zinc source solution is 0.3-0.7 mol / L.

[0009] Furthermore, in step S2, the volume ratio of the zinc source solution to the 2-methylimidazole solution is 1:5-10.

[0010] Furthermore, in step S2, the reaction temperature is 20-30° C., and the reaction time is 1-6 h.

[0011] Furthermore, in step S3, the essential oil is a plant extract extracted from plant flowers, fruits, leaves, branches and roots.

[0012] Furthermore, in step S3, the electrospun nanofibers include polyacrylonitrile fibers or polyvinyl alcohol fibers.

[0013] Furthermore, in step S4, the microfiber suede-like layer is woven from island-type polyester microfibers.

[0014] It can be seen from the above technical solution that compared with the prior art, the beneficial effects of the present invention are as follows: 1. The antibacterial and aromatic microfiber suede-like fabric provided by the present invention, MOF nanorods provide antibacterial effect, and are compounded with electrospun nanofibers loaded with aromatic essential oils, and the organic and inorganic dual carriers are used to simultaneously give the textile material antibacterial and aromatic effects, and improve the durability of the function.

[0015] 2. By growing MOF nanorods on the surface of the fabric and combining them with nanofibers, the friction between the nanofibers and nanorods is increased or partially embedded between the nanorods, which can improve the bonding performance between the nanofibers and the fabric, avoid the use of adhesives, make the process environmentally friendly, and save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a cross-sectional view of the antibacterial aromatic microfiber suede-like fabric prepared in Example 1, wherein 1 is a microfiber suede-like layer, and 2 is an antibacterial aromatic textile base fabric layer; Figure 2 Schematic diagram of the growth of MOF nanorods on the surface of cotton fabric in Example 1; Figure 3 Schematic diagram of the combination of PAN nanofibers and cotton fibers in Example 1; Figure 4 This is a schematic diagram of the inhibition zone of the antibacterial aromatic textile base fabric layer against Escherichia coli in Example 1; Figure 5 Schematic diagram of the inhibition zone of the antibacterial aromatic textile base fabric layer of Example 1 against Staphylococcus aureus. DETAILED DESCRIPTION

[0017] The invention provides an antibacterial aromatic microfiber suede-like fabric. The antibacterial aromatic microfiber suede-like fabric comprises a microfiber suede-like layer and an antibacterial aromatic textile base fabric layer.

[0018] The present invention provides a method for preparing the above-mentioned antibacterial aromatic microfiber suede-like fabric, comprising the following steps: S1, putting the fabric into 2-methylimidazole solution for immersion treatment; S2, after the immersion treatment is completed, the zinc source solution is added into the 2-methylimidazole solution to react to obtain a fabric with MOF nanorods growing on the surface; S3, depositing the electrospun nanofibers loaded with aromatic essential oils on the fabric with MOF nanorods growing on the surface to obtain an antibacterial aromatic textile base fabric layer; S4, bonding the antibacterial aromatic textile base fabric layer to the microfiber suede-like layer to obtain the antibacterial aromatic microfiber suede-like fabric.

[0019] In the present invention, in step S1, the fabric includes woven fabric, knitted fabric or non-woven fabric, and the woven fabric is preferably cotton fabric or polyester fabric.

[0020] In the present invention, in step S1, the concentration of the 2-methylimidazole solution is 0.2-0.5 mol / L, preferably 0.3-0.4 mol / L; the immersion treatment time is 3-10 min, preferably 4-8 min, and more preferably 5-6 min.

[0021] In the present invention, in step S2, the zinc source solution includes zinc acetate solution, zinc nitrate solution or zinc chloride solution, and the concentration of the zinc source solution is 0.3-0.7 mol / L, preferably 0.4-0.6 mol / L, and more preferably 0.5 mol / L.

[0022] In the present invention, in step S2, the volume ratio of the zinc source solution to the 2-methylimidazole solution is 1:5-10, preferably 1:6-9, and more preferably 1:7-8.

[0023] In the present invention, in step S2, the reaction temperature is 20-30°C, preferably 22-28°C, and more preferably 24-26°C; the reaction time is 1-6h, preferably 2-5h, and more preferably 3-4h.

[0024] In the present invention, in step S2, after the reaction is completed, the reaction product is preferably washed with ethanol and dried at 60-80°C.

[0025] In the present invention, in step S3, the aromatic essential oil is a plant extract extracted from plant flowers, fruits, leaves, branches and roots, preferably tea tree essential oil, lavender essential oil or chamomile essential oil.

[0026] In the present invention, in step S3, the electrospun nanofibers include polyacrylonitrile fibers or polyvinyl alcohol fibers.

[0027] In the present invention, in step S3, nitrogen or a negative pressure device is used to promote the embedding of electrospun nanofibers between MOF nanorods, thereby improving the bonding of electrospun nanofibers with fabrics.

[0028] In the present invention, in step S4, the microfiber suede-like layer is woven from island-type polyester microfibers.

[0029] The technical solutions provided by the present invention are described in detail below in conjunction with the embodiments, but they should not be construed as limiting the protection scope of the present invention.

[0030] Example 1 2-methylimidazole was dissolved in deionized water, and stirred to dissolve to obtain a 2-methylimidazole solution with a concentration of 0.3 mol / L; zinc chloride was dissolved in deionized water to obtain a zinc chloride solution with a concentration of 0.5 mol / L.

[0031] Then, the cotton fabric was vertically placed in the 2-methylimidazole solution and soaked for 5 minutes, and then the zinc chloride solution was slowly added dropwise, and stirred for reaction at 25°C for 3 hours. After the reaction, the cotton fabric was taken out and cleaned with ethanol, and then dried at 70°C for use, and a cotton fabric with MOF nanorods was obtained, such as Figure 2 As shown, the surface of cotton fibers can be seen covered with MOF nanorods.

[0032] 1 g of polyacrylonitrile fiber (PAN) powder was weighed and dissolved in 9 g of DMF solution to obtain a polyacrylonitrile fiber solution, and tea tree essential oil was added to make the mass concentration of tea tree essential oil in the polyacrylonitrile fiber solution 5%, thereby obtaining a PAN electrospinning solution loaded with tea tree essential oil.

[0033] The cotton fabric with MOF nanorods was used as the receiving material, and PAN nanofibers were deposited on it to obtain an antibacterial aromatic textile base fabric layer. Then, a negative pressure device was used on the side of the cotton fabric without nanofiber deposition to improve the bonding between PAN nanofibers and cotton fabric, such as Figure 3 As shown, it can be seen that the nanofibers are tightly combined with the cotton fibers, and some of the nanofibers are embedded between the nanorods.

[0034] The antibacterial and aromatic microfiber suede-like fabric is obtained by bonding a microfiber suede-like layer woven from island-type polyester microfibers and an antibacterial and aromatic textile base fabric layer together.

[0035] Taking Escherichia coli and Staphylococcus aureus as representative bacteria, the obtained antibacterial aromatic textile base fabric layer was subjected to an inhibition zone test, and the results were as follows: Figure 4 and Figure 5 As shown, it can be seen that the antibacterial aromatic textile base fabric layer prepared in this embodiment has an obvious inhibition zone for both bacteria, which indicates that the antibacterial aromatic microfiber suede-like fabric prepared by using the antibacterial aromatic textile base fabric layer also has good antibacterial properties.

[0036] Example 2 2-methylimidazole was dissolved in deionized water, and stirred to dissolve to obtain a 2-methylimidazole solution with a concentration of 0.2 mol / L; zinc chloride was dissolved in deionized water to obtain a zinc chloride solution with a concentration of 0.3 mol / L.

[0037] The cotton fabric was then placed vertically in the 2-methylimidazole solution and soaked for 5 minutes, and then the zinc chloride solution was slowly added dropwise, and stirred for reaction at 20°C for 6 hours. After the reaction, the cotton fabric was taken out and cleaned with ethanol, and then dried at 60°C for use, thereby obtaining cotton fabric with MOF nanorods.

[0038] 2 g of polyacrylonitrile fiber (PAN) powder was weighed and dissolved in 8 g of DMF solution to obtain a polyacrylonitrile fiber solution, and lavender essential oil was added to make the mass concentration of lavender essential oil in the polyacrylonitrile fiber solution 5%, thereby obtaining a PAN electrospinning solution loaded with lavender essential oil.

[0039] The cotton fabric with MOF nanorods was used as the receiving material, and PAN nanofibers were deposited on it to obtain an antibacterial aromatic textile base fabric layer. Then, a negative pressure device was used on the side of the cotton fabric without nanofiber deposition to improve the bonding of PAN nanofibers with the cotton fabric.

[0040] The antibacterial and aromatic microfiber suede-like fabric is obtained by bonding a microfiber suede-like layer woven from island-type polyester microfibers and an antibacterial and aromatic textile base fabric layer together.

[0041] Example 3 2-methylimidazole was dissolved in deionized water, and stirred to dissolve to obtain a 2-methylimidazole solution with a concentration of 0.5 mol / L; zinc chloride was dissolved in deionized water to obtain a zinc chloride solution with a concentration of 0.7 mol / L.

[0042] Then, the polyester fabric was vertically placed in the 2-methylimidazole solution and soaked for 5 minutes, and then the zinc chloride solution was slowly added and stirred at 30°C for 1 hour. After the reaction, the polyester fabric was taken out and cleaned with ethanol, and then dried at 80°C for use, thereby obtaining a polyester fabric with MOF nanorods.

[0043] 1 g of polyvinyl alcohol fiber (PVA) powder was weighed and dissolved in 9 g of DMF solution to obtain a polyvinyl alcohol fiber solution, and chamomile essential oil was added to make the mass concentration of chamomile essential oil in the polyvinyl alcohol fiber solution 5%, thereby obtaining a PVA electrospinning solution loaded with chamomile essential oil.

[0044] The polyester fabric with MOF nanorods was used as the receiving material, and PVA nanofibers were deposited on it to obtain an antibacterial aromatic textile base fabric layer. Then, a negative pressure device was used on the side of the polyester fabric without nanofiber deposition to improve the bonding between the PVA nanofibers and the polyester fabric.

[0045] The antibacterial and aromatic microfiber suede-like fabric is obtained by bonding a microfiber suede-like layer woven from island-type polyester microfibers and an antibacterial and aromatic textile base fabric layer together.

[0046] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An antibacterial aromatic microfiber suede-like fabric, characterized in that: The antibacterial aromatic microfiber suede-like fabric comprises a microfiber suede-like layer and an antibacterial aromatic textile base fabric layer.

2. The method for preparing the antibacterial aromatic microfiber suede-like fabric according to claim 1, characterized in that: The following steps are involved: S1, putting the fabric into 2-methylimidazole solution for immersion treatment; S2, after the immersion treatment is completed, the zinc source solution is added into the 2-methylimidazole solution to react to obtain a fabric with MOF nanorods growing on the surface; S3, depositing the electrospun nanofibers loaded with aromatic essential oils on the fabric with MOF nanorods growing on the surface to obtain an antibacterial aromatic textile base fabric layer; S4, bonding the antibacterial aromatic textile base fabric layer to the microfiber suede-like layer to obtain the antibacterial aromatic microfiber suede-like fabric.

3. The preparation method according to claim 2, characterized in that: In the step S1, the fabric includes woven fabric, knitted fabric or non-woven fabric.

4. The preparation method according to claim 3, characterized in that: In the step S1, the concentration of the 2-methylimidazole solution is 0.2-0.5 mol / L, and the immersion treatment time is 3-10 min.

5. The preparation method according to any one of claims 2 to 4, characterized in that In step S2, the zinc source solution includes zinc acetate solution, zinc nitrate solution or zinc chloride solution, and the concentration of the zinc source solution is 0.3-0.7 mol / L.

6. The preparation method according to claim 5, characterized in that: In step S2, the volume ratio of the zinc source solution to the 2-methylimidazole solution is 1:5-10.

7. The preparation method according to claim 3, 4 or 6, characterized in that: In step S2, the reaction temperature is 20-30° C., and the reaction time is 1-6 hours.

8. The preparation method according to claim 7, characterized in that: In step S3, the essential oil is a plant extract extracted from plant flowers, fruits, leaves, branches and roots.

9. The preparation method according to claim 8, characterized in that: In the step S3, the electrospun nanofibers include polyacrylonitrile fibers or polyvinyl alcohol fibers.

10. The preparation method according to claim 6 or 9, characterized in that: In the step S4, the microfiber suede-like layer is woven from island-shaped polyester microfibers.

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