Moisturizing antibacterial polyester fiber fabric and preparation method thereof

Abstract

The invention relates to a moisturizing antibacterial polyester fiber fabric and a preparation method thereof. The preparation method of the moisturizing antibacterial polyester fiber fabric comprises the following steps: S1, adding curcuma oil, litsea cubeba oil and hyaluronic acid into a glacial acetic acid-butyl acetate mixed solvent to obtain a core material solution; adding acrylic acid and n-butyl acrylate into the core material solution to obtain a mixed solution; a cross-linking agent is added into ethyl acetate, an ethyl acetate solution is obtained, and the cross-linking agent comprises tert-butyl peroxybenzoate; adding the mixed solution into a dodecyl ethyoxyl sulphobetaine aqueous solution, stirring, adding an acetic ether solution, heating to carry out a cross-linking reaction, centrifuging, washing and drying to obtain microcapsules; s2, adding an epoxy silane cross-linking agent, fatty alcohol-polyoxyethylene ether and microcapsules into water, and uniformly stirring to obtain finishing liquid; grey cloth made of polyester fibers is placed in the finishing liquid to be subjected to padding, cleaning, drying and baking. According to the invention, the durability of the antibacterial effect and the moisturizing effect can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of textiles, and in particular relates to a moisturizing and antibacterial polyester fiber fabric and a preparation method thereof. Background Art

[0002] Polyester fiber, also known as "polyester", is a synthetic fiber made by chemical polycondensation of organic dibasic acid and diol, and each chain segment in its molecular chain is connected by ester groups. Polyester fiber has high crystallinity, high breaking strength and elastic modulus, moderate resilience, moderate elongation, excellent heat setting effect, good heat resistance and light resistance, good resilience, not easy to deform, good wear resistance, acid resistance, and resistance to most organic solvents. It is widely used in various fashions, casual wear, sporting goods and sanitary products, etc., and has broad application prospects.

[0003] However, textiles are prone to adhere to sweat, sebum and other secretions during wearing, which provide favorable conditions for the growth and reproduction of microorganisms. The porous shape of textiles is also conducive to the attachment of microorganisms. The breeding of bacteria can cause mildew, odor, and even cause diseases, endangering human health. Therefore, antibacterial finishing of textiles is very necessary.

[0004] In order to give polyester fibers antibacterial properties, people have tried to make natural antibacterial agents into finishing liquids and then treat the grey fabrics. However, antibacterial durability and washability have always been bottlenecks faced by this field. Summary of the invention

[0005] In view of this, the object of the present invention is to provide a moisturizing antibacterial polyester fiber fabric and a preparation method thereof, so as to solve the technical problems such as the bottlenecks faced by the antibacterial durability and water washability of the fabric made of the above polyester fiber.

[0006] To achieve the above-mentioned object of the invention, the technical solution of the present invention is as follows:

[0007] In a first aspect, the present application provides a method for preparing a moisturizing and antibacterial polyester fiber fabric, the preparation method comprising the following steps:

[0008] S1. Adding turmeric oil, litsea cubeba oil and hyaluronic acid to a glacial acetic acid - butyl acetate mixed solvent to obtain a core material solution;

[0009] adding acrylic acid and n-butyl acrylate to the core material solution to obtain a mixed solution;

[0010] Adding a cross-linking agent to ethyl acetate to obtain an ethyl acetate solution, wherein the cross-linking agent includes tert-butyl perbenzoate;

[0011] Adding the mixed solution to the aqueous solution of dodecylethoxysulfobetaine, adding the ethyl acetate solution after stirring, heating to carry out a cross-linking reaction, centrifuging, washing, and drying to obtain microcapsules;

[0012] S2. Add epoxy silane crosslinker, fatty alcohol polyoxyethylene ether and the microcapsules to water and stir to obtain a finishing solution;

[0013] The polyester fiber blank is placed in the finishing liquid for immersion, cleaning, drying and baking to obtain the moisturizing and antibacterial polyester fiber fabric.

[0014] Optionally, in step S1, the mass ratio of turmeric oil to litsea cubeba oil is 2-5:1-3, preferably 3-5:1-3.

[0015] Optionally, in step S1, the mass ratio of turmeric oil to hyaluronic acid is 2-5:4-7, preferably 2-5:4-7.

[0016] Optionally, in step S1, the mass ratio of the n-butyl acrylate to the turmeric oil is 4-7:2-5, preferably 5-7:2-5.

[0017] Optionally, in step S1, the mass ratio of the cross-linking agent to n-butyl acrylate is 1-2:4-7, preferably 1.5-2:4-7.

[0018] Optionally, in step S1, the mass ratio of acrylic acid to n-butyl acrylate is 0.2-0.4:4-7, preferably 0.25-0.4:4-7.

[0019] Optionally, in step S1, the mass ratio of the dodecylethoxysulfobetaine to the acrylic resin is 0.05-0.12:1, preferably 0.06-0.12:1.

[0020] Optionally, in step S1, the mass ratio of the dodecylethoxysulfobetaine to the cross-linking agent is 0.1-0.3:1, preferably 0.15-0.3:1.

[0021] Optionally, in step S1, the temperature of the cross-linking reaction is 90-95°C, preferably 92-95°C; the duration of the cross-linking reaction is 10-15 min, preferably 12-15 min.

[0022] Optionally, in step S1, the cross-linking agent further includes tert-butyl peroxyoctanoate.

[0023] Optionally, in step S1, the mass ratio of tert-butyl peroxyoctanoate to tert-butyl peroxybenzoate is 1-2:6-8, preferably 1.2-2:6-8.

[0024] Optionally, the ethyl acetate solution in step S1 further contains dimethylaniline.

[0025] Optionally, in step S1, the mass ratio of dimethylaniline to the cross-linking agent is 0.1-0.3:1, preferably 0.15-0.3:1.

[0026] Optionally, in the finishing solution of step S2, the concentration of the microcapsules is 20-35 g / L, preferably 25-35 g / L.

[0027] Optionally, in step S2, the mass ratio of the microcapsules to the epoxy silane crosslinking agent is 1:0.1-0.3, preferably 1:0.15-0.3.

[0028] Optionally, in step S2, the mass ratio of the microcapsules to the fatty alcohol polyoxyethylene ether is 1:0.02-0.05, preferably 1:0.03-0.05.

[0029] Optionally, in step S2, the mass ratio of the finishing liquid to the grey cloth is 15-20:1, preferably 16-20:1.

[0030] Optionally, in step S2, the padding temperature is 55-65°C, preferably 60-65°C.

[0031] Optionally, in step S2, during the dipping and rolling process, the rolling rate is 70wt%-75wt%, preferably 72wt%-75wt%.

[0032] Optionally, in step S2, the drying temperature is 100-110°C, preferably 105-110°C; the baking time is 1-2 min, preferably 1.5-2 min.

[0033] Optionally, in step S2, the baking temperature is 130-140°C, preferably 135-140°C; the baking time is 1-2 min, preferably 1.5-2 min.

[0034] In a second aspect, the present application provides a moisturizing and antibacterial polyester fiber fabric prepared according to the method as described above.

[0035] As described above, the moisturizing and antibacterial polyester fiber fabric and the preparation method thereof of the present invention have the following beneficial effects:

[0036] In the present invention, natural antibacterial agents turmeric oil and litsea cubeba oil with antibacterial efficacy and hyaluronic acid with moisturizing efficacy are prepared into a core material solution; tert-butyl peroxybenzoate is decomposed by heat to generate free radicals that can trigger a cross-linking reaction, so that acrylic acid and n-butyl acrylate are cross-linked to generate a cross-linked product, and the cross-linked product is used as a wall material to form a microcapsule; the microcapsule, epoxy silane cross-linking agent and fatty alcohol polyoxyethylene ether are then prepared into a finishing liquid, and the finishing liquid is used to post-finish a grey cloth made of polyester fiber, the fatty alcohol polyoxyethylene ether in the finishing liquid promotes the finishing liquid to penetrate into the interior of the fiber, and the epoxy silane cross-linking agent can associate with each other to form a network structure, and the network structure fixes the microcapsule on the surface of the fabric, thereby improving the durability of the antibacterial efficacy and moisturizing efficacy.

[0037] In the present invention, tert-butyl peroxyoctanoate and tert-butyl peroxybenzoate are used in combination, which can shorten the cross-linking time, improve the cross-linking effect, increase the cross-linking density, and thus improve the storage stability of the microcapsules, and further enhance the durability of the antibacterial effect and the moisturizing effect.

[0038] In the present invention, dimethylaniline can promote the activation of substances such as tert-butyl perbenzoate, thereby increasing the cross-linking density, improving the mechanical strength and stability of the microcapsules, and further improving the durability of the antibacterial effect and the moisturizing effect. DETAILED DESCRIPTION

[0039] The present invention is further described below through specific examples, but it should be pointed out that the specific material ratios, process conditions and results described in the embodiments of the present invention are only used to illustrate the present invention and cannot be used to limit the scope of protection of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of protection of the present invention.

[0040] An embodiment of the present application provides a method for preparing a moisturizing and antibacterial polyester fiber fabric, comprising the following steps:

[0041] S1. Adding turmeric oil, litsea cubeba oil and hyaluronic acid to a glacial acetic acid-butyl acetate mixed solvent to obtain a core material solution, wherein the mass ratio of turmeric oil to litsea cubeba oil is 2-5:1-3, and the mass ratio of turmeric oil to hyaluronic acid is 2-5:4-7;

[0042] Adding acrylic acid and n-butyl acrylate to the core material solution to obtain a mixed solution, wherein the mass ratio of n-butyl acrylate to turmeric oil is 4-7:2-5, and the mass ratio of acrylic acid to n-butyl acrylate is 0.2-0.4:4-7;

[0043] Adding a crosslinking agent to ethyl acetate to obtain an ethyl acetate solution, wherein the crosslinking agent includes tert-butyl peroxybenzoate, and the mass ratio of the crosslinking agent to n-butyl acrylate is 1-2:4-7;

[0044] Adding the mixed solution to the aqueous solution of dodecyl ethoxy sulfobetaine, adding ethyl acetate solution after stirring, heating to 90-95° C. to carry out a cross-linking reaction for 10-15 minutes, centrifuging, washing, and drying to obtain microcapsules, wherein the mass ratio of dodecyl ethoxy sulfobetaine to acrylic resin is 0.05-0.12:1, and the mass ratio of dodecyl ethoxy sulfobetaine to cross-linking agent is 0.1-0.3:1;

[0045] S2. Add epoxy silane crosslinker, fatty alcohol polyoxyethylene ether and microcapsules to water and stir to obtain a microcapsule concentration of 20-35 g / L finishing liquid, the mass ratio of microcapsules to epoxy silane crosslinker is 1: 0.1-0.3, the mass ratio of microcapsules to fatty alcohol polyoxyethylene ether is 1: 0.02-0.05;

[0046] The polyester fiber blank is placed in a finishing liquid 15-20 times its weight at 55-65°C, with a liquid rolling rate of 70wt%-75wt%, washed, dried at 100-110°C for 1-2 minutes, and then baked at 130-140°C for 1-2 minutes to obtain a moisturizing and antibacterial polyester fiber fabric.

[0047] In another embodiment of the present application, in step S1, the cross-linking agent further comprises tert-butyl peroxyoctanoate, and the mass ratio of tert-butyl peroxyoctanoate to tert-butyl peroxybenzoate is 1-2:6-8.

[0048] In another embodiment of the present application, the ethyl acetate solution in step S1 further contains dimethylaniline, and the mass ratio of dimethylaniline to the cross-linking agent is 0.1-0.3:1.

[0049] The present application provides, in one embodiment, a moisturizing and antibacterial polyester fiber fabric prepared according to the method described above.

[0050] The present invention is described in detail below by specific examples. It should also be understood that the following examples are only used to specifically illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Some non-essential improvements and adjustments made by those skilled in the art based on the above content of the present invention belong to the scope of protection of the present invention. The specific process parameters and the like in the following examples are also only examples within a suitable range, that is, those skilled in the art can make a selection within a suitable range through the description herein, and are not limited to the specific values ​​​​exemplified below.

[0051] Example 1

[0052] A method for preparing a moisturizing and antibacterial polyester fiber fabric, the specific steps are as follows:

[0053] S1. Add turmeric oil, litsea cubeba oil and hyaluronic acid to a glacial acetic acid-butyl acetate mixed solvent (the volume ratio of glacial acetic acid to butyl acetate is 3:1) to obtain a core material solution, wherein the mass ratio of turmeric oil to litsea cubeba oil is 4:2, and the mass ratio of turmeric oil to hyaluronic acid is 4:5;

[0054] Adding acrylic acid and n-butyl acrylate to the core material solution to obtain a mixed solution, wherein the mass ratio of n-butyl acrylate to turmeric oil is 5:4, and the mass ratio of acrylic acid to n-butyl acrylate is 0.3:5;

[0055] Adding tert-butyl perbenzoate to ethyl acetate to obtain an ethyl acetate solution, wherein the mass ratio of tert-butyl perbenzoate to n-butyl acrylate is 1.5:5;

[0056] The mixed solution was added to a 10 wt % aqueous solution of dodecyl ethoxy sulfobetaine, and the mixture was stirred and then added with an ethyl acetate solution, and the mixture was heated to 92° C. for a cross-linking reaction for 12 min, and then centrifuged, washed, and dried to obtain microcapsules, wherein the mass ratio of dodecyl ethoxy sulfobetaine to acrylic resin was 0.08:1, and the mass ratio of dodecyl ethoxy sulfobetaine to tert-butyl peroxybenzoate was 0.2:1;

[0057] S2. Add epoxy silane crosslinker XR-50, octanol polyoxyethylene ether penetrant JFC-4 and microcapsules to water, stir evenly, and obtain a finishing solution with a microcapsule concentration of 25 g / L, the mass ratio of microcapsules to epoxy silane crosslinker XR-50 is 1:0.2, and the mass ratio of microcapsules to octanol polyoxyethylene ether penetrant JFC-4 is 1:0.03;

[0058] The polyester fiber blank was placed in a finishing liquid 17 times its weight at 60°C, immersed, rolled, double immersed and double rolled, the liquid rolling rate was 72wt%, washed, dried at 105°C for 1.5min, and then baked at 135°C for 1.5min to obtain a moisturizing and antibacterial polyester fiber fabric.

[0059] Example 2

[0060] A method for preparing a moisturizing and antibacterial polyester fiber fabric, the specific steps are as follows:

[0061] S1. Add turmeric oil, litsea cubeba oil and hyaluronic acid to a glacial acetic acid-butyl acetate mixed solvent (the volume ratio of glacial acetic acid to butyl acetate is 3:1) to obtain a core material solution, wherein the mass ratio of turmeric oil to litsea cubeba oil is 5:1, and the mass ratio of turmeric oil to hyaluronic acid is 5:4;

[0062] Adding acrylic acid and n-butyl acrylate to the core material solution to obtain a mixed solution, wherein the mass ratio of n-butyl acrylate to turmeric oil is 4:5, and the mass ratio of acrylic acid to n-butyl acrylate is 0.4:4;

[0063] Adding tert-butyl perbenzoate to ethyl acetate to obtain an ethyl acetate solution, wherein the mass ratio of tert-butyl perbenzoate to n-butyl acrylate is 1:4;

[0064] The mixed solution is added to a 10 wt % aqueous solution of dodecyl ethoxy sulfobetaine, and after stirring, an ethyl acetate solution is added, and the mixture is heated to 90° C. for a cross-linking reaction for 15 min, and the mixture is centrifuged, washed, and dried to obtain microcapsules, wherein the mass ratio of dodecyl ethoxy sulfobetaine to acrylic resin is 0.12:1, and the mass ratio of dodecyl ethoxy sulfobetaine to tert-butyl peroxybenzoate is 0.1:1;

[0065] S2. Add epoxy silane crosslinker XR-50, octanol polyoxyethylene ether penetrant JFC-4 and microcapsules to water, stir evenly, and obtain a finishing solution with a microcapsule concentration of 20 g / L, the mass ratio of microcapsules to epoxy silane crosslinker XR-50 is 1:0.1, and the mass ratio of microcapsules to octanol polyoxyethylene ether penetrant JFC-4 is 1:0.05;

[0066] The polyester fiber blank was placed in a finishing liquid 20 times its weight at 55°C, dipped and rolled, double dipping and double rolling, the rolling rate was 75wt%, washed, dried at 100°C for 2 minutes, and then baked at 140°C for 1 minute to obtain a moisturizing and antibacterial polyester fiber fabric.

[0067] Example 3

[0068] A method for preparing a moisturizing and antibacterial polyester fiber fabric, the specific steps are as follows:

[0069] S1. Add turmeric oil, litsea cubeba oil and hyaluronic acid to a glacial acetic acid-butyl acetate mixed solvent (the volume ratio of glacial acetic acid to butyl acetate is 3:1) to obtain a core material solution, wherein the mass ratio of turmeric oil to litsea cubeba oil is 2:3, and the mass ratio of turmeric oil to hyaluronic acid is 2:7;

[0070] Adding acrylic acid and n-butyl acrylate to the core material solution to obtain a mixed solution, wherein the mass ratio of n-butyl acrylate to turmeric oil is 7:5, and the mass ratio of acrylic acid to n-butyl acrylate is 0.2:7;

[0071] Adding tert-butyl perbenzoate to ethyl acetate to obtain an ethyl acetate solution, wherein the mass ratio of tert-butyl perbenzoate to n-butyl acrylate is 2:7;

[0072] The mixed solution is added to a 10 wt % aqueous solution of dodecyl ethoxy sulfobetaine, and after stirring, an ethyl acetate solution is added, and the mixture is heated to 95° C. for a cross-linking reaction for 10 min, and the mixture is centrifuged, washed, and dried to obtain microcapsules, wherein the mass ratio of dodecyl ethoxy sulfobetaine to acrylic resin is 0.05:1, and the mass ratio of dodecyl ethoxy sulfobetaine to tert-butyl peroxybenzoate is 0.3:1;

[0073] S2. Add epoxy silane crosslinker XR-50, octanol polyoxyethylene ether penetrant JFC-4 and microcapsules to water, stir evenly, and obtain a finishing solution with a microcapsule concentration of 35 g / L, the mass ratio of microcapsules to epoxy silane crosslinker XR-50 is 1:0.1, and the mass ratio of microcapsules to octanol polyoxyethylene ether penetrant JFC-4 is 1:0.02;

[0074] The polyester fiber blank was placed in a finishing liquid 15 times its weight at 65°C, immersed, rolled, double immersed and double rolled, the liquid rolling rate was 70wt%, washed, dried at 110°C for 2 minutes, and then baked at 130°C for 2 minutes to obtain a moisturizing and antibacterial polyester fiber fabric.

[0075] Example 4

[0076] The moisturizing and antibacterial polyester fiber fabric was prepared in the same manner as in Example 3 except for the following conditions:

[0077] S1. Add turmeric oil, litsea cubeba oil and hyaluronic acid to a glacial acetic acid-butyl acetate mixed solvent (the volume ratio of glacial acetic acid to butyl acetate is 3:1) to obtain a core material solution, wherein the mass ratio of turmeric oil to litsea cubeba oil is 2:3, and the mass ratio of turmeric oil to hyaluronic acid is 2:7;

[0078] Adding acrylic acid and n-butyl acrylate to the core material solution to obtain a mixed solution, wherein the mass ratio of n-butyl acrylate to turmeric oil is 7:5, and the mass ratio of acrylic acid to n-butyl acrylate is 0.2:7;

[0079] Adding a crosslinking agent to ethyl acetate to obtain an ethyl acetate solution, wherein the crosslinking agent is composed of tert-butyl peroxyoctanoate and tert-butyl peroxybenzoate in a mass ratio of 1:8, and the mass ratio of the crosslinking agent to n-butyl acrylate is 2:7;

[0080] The mixed solution was added to a 10wt% aqueous solution of dodecylethoxysulfobetaine, and the mixture was stirred and then added with ethyl acetate solution, and the mixture was heated to 95°C for 10 minutes for cross-linking reaction, centrifuged, washed and dried to obtain microcapsules, wherein the mass ratio of dodecylethoxysulfobetaine to acrylic resin was 0.05:1, and the mass ratio of dodecylethoxysulfobetaine to cross-linking agent was 0.3:1.

[0081] Example 5

[0082] The moisturizing and antibacterial polyester fiber fabric was prepared in the same manner as in Example 3 except for the following conditions:

[0083] S1. Add turmeric oil, litsea cubeba oil and hyaluronic acid to a glacial acetic acid-butyl acetate mixed solvent (the volume ratio of glacial acetic acid to butyl acetate is 3:1) to obtain a core material solution, wherein the mass ratio of turmeric oil to litsea cubeba oil is 2:3, and the mass ratio of turmeric oil to hyaluronic acid is 2:7;

[0084] Adding acrylic acid and n-butyl acrylate to the core material solution to obtain a mixed solution, wherein the mass ratio of n-butyl acrylate to turmeric oil is 7:5, and the mass ratio of acrylic acid to n-butyl acrylate is 0.2:7;

[0085] Adding a crosslinking agent to ethyl acetate to obtain an ethyl acetate solution, wherein the crosslinking agent is composed of tert-butyl peroxyoctanoate and tert-butyl peroxybenzoate in a mass ratio of 2:6, and the mass ratio of the crosslinking agent to n-butyl acrylate is 2:7;

[0086] The mixed solution was added to a 10wt% aqueous solution of dodecylethoxysulfobetaine, and the mixture was stirred and then added with ethyl acetate solution, and the mixture was heated to 95°C for 10 minutes for cross-linking reaction, centrifuged, washed and dried to obtain microcapsules, wherein the mass ratio of dodecylethoxysulfobetaine to acrylic resin was 0.05:1, and the mass ratio of dodecylethoxysulfobetaine to cross-linking agent was 0.3:1.

[0087] Example 6

[0088] The moisturizing and antibacterial polyester fiber fabric was prepared in the same manner as in Example 3 except for the following conditions:

[0089] S1. Add turmeric oil, litsea cubeba oil and hyaluronic acid to a glacial acetic acid-butyl acetate mixed solvent (the volume ratio of glacial acetic acid to butyl acetate is 3:1) to obtain a core material solution, wherein the mass ratio of turmeric oil to litsea cubeba oil is 2:3, and the mass ratio of turmeric oil to hyaluronic acid is 2:7;

[0090] Adding acrylic acid and n-butyl acrylate to the core material solution to obtain a mixed solution, wherein the mass ratio of n-butyl acrylate to turmeric oil is 7:5, and the mass ratio of acrylic acid to n-butyl acrylate is 0.2:7;

[0091] Adding tert-butyl perbenzoate and dimethylaniline to ethyl acetate to obtain an ethyl acetate solution, wherein the mass ratio of tert-butyl perbenzoate to n-butyl acrylate is 2:7, and the mass ratio of dimethylaniline to tert-butyl perbenzoate is 0.3:1;

[0092] The mixed solution was added to a 10wt% aqueous solution of dodecylethoxysulfobetaine, and the mixture was stirred and then added with ethyl acetate solution, and the mixture was heated to 95°C for 10 minutes for cross-linking reaction, centrifuged, washed and dried to obtain microcapsules, wherein the mass ratio of dodecylethoxysulfobetaine to acrylic resin was 0.05:1, and the mass ratio of dodecylethoxysulfobetaine to tert-butyl perbenzoate was 0.3:1.

[0093] Example 7

[0094] The moisturizing and antibacterial polyester fiber fabric was prepared in the same manner as in Example 3 except for the following conditions:

[0095] S1. Add turmeric oil, litsea cubeba oil and hyaluronic acid to a glacial acetic acid-butyl acetate mixed solvent (the volume ratio of glacial acetic acid to butyl acetate is 3:1) to obtain a core material solution, wherein the mass ratio of turmeric oil to litsea cubeba oil is 2:3, and the mass ratio of turmeric oil to hyaluronic acid is 2:7;

[0096] Adding acrylic acid and n-butyl acrylate to the core material solution to obtain a mixed solution, wherein the mass ratio of n-butyl acrylate to turmeric oil is 7:5, and the mass ratio of acrylic acid to n-butyl acrylate is 0.2:7;

[0097] Adding tert-butyl perbenzoate and dimethylaniline to ethyl acetate to obtain an ethyl acetate solution, wherein the mass ratio of tert-butyl perbenzoate to n-butyl acrylate is 2:7, and the mass ratio of dimethylaniline to tert-butyl perbenzoate is 0.1:1;

[0098] The mixed solution was added to a 10wt% aqueous solution of dodecylethoxysulfobetaine, and the mixture was stirred and then added with ethyl acetate solution, and the mixture was heated to 95°C for 10 minutes for cross-linking reaction, centrifuged, washed and dried to obtain microcapsules, wherein the mass ratio of dodecylethoxysulfobetaine to acrylic resin was 0.05:1, and the mass ratio of dodecylethoxysulfobetaine to tert-butyl perbenzoate was 0.3:1.

[0099] Comparative Example 1

[0100] A method for preparing a moisturizing and antibacterial polyester fiber fabric, the specific steps are as follows:

[0101] S1. Add turmeric oil, litsea cubeba oil and hyaluronic acid to a glacial acetic acid-butyl acetate mixed solvent (the volume ratio of glacial acetic acid to butyl acetate is 3:1) to obtain a core material solution, wherein the mass ratio of turmeric oil to litsea cubeba oil is 2:3, and the mass ratio of turmeric oil to hyaluronic acid is 2:7;

[0102] S2. Add epoxy silane crosslinker XR-50, octanol polyoxyethylene ether penetrant JFC-4 and reaction solution to water, stir evenly, and obtain a finishing solution with a microcapsule concentration of 35 g / L, the mass ratio of microcapsules to epoxy silane crosslinker XR-50 is 1:0.1, and the mass ratio of reaction solution to octanol polyoxyethylene ether penetrant JFC-4 is 1:0.02;

[0103] The polyester fiber blank was placed in a finishing liquid 15 times its weight at 65°C, immersed, rolled, double immersed and double rolled, the liquid rolling rate was 70wt%, washed, dried at 110°C for 2 minutes, and then baked at 130°C for 2 minutes to obtain a moisturizing and antibacterial polyester fiber fabric.

[0104] That is, in this comparative example, turmeric oil, litsea cubeba oil and hyaluronic acid were not prepared into microcapsules.

[0105] Performance Testing

[0106] Antibacterial performance test: 10 cm*10 cm samples were taken from the fabrics prepared in Examples 1-7 and Comparative Example 1, and the antibacterial values ​​of each sample against Staphylococcus aureus (ATCC 6538) and Escherichia coli (ATCC 1122938) were detected according to "GB / T 20944.2-2007 Evaluation of Antibacterial Properties of Textiles Part 2: Absorption Method", wherein the test bacterial solution was prepared after culturing according to the culture C method, and the results are shown in Table 1; then each group of samples was machine washed at room temperature, the washing time was 10 min, the water level was full water level, the stirring speed was 180 r / min, the drying speed was 650 r / min, the drying time was 6 min, and then naturally air-dried. After 50 cycles of washing and air-drying, the antibacterial values ​​of each sample against Staphylococcus aureus (ATCC 1122938) were detected again according to "GB / T 20944.2-2007 Evaluation of Antibacterial Properties of Textiles Part 2: Absorption Method". The antibacterial values ​​of the samples against Staphylococcus aureus (ATCC 6538) and Escherichia coli (ATCC 1122938) were measured, and the results are shown in Table 1. After the washed samples were washed and air-dried again according to the same conditions for 50 times (i.e., a total of 100 times), the antibacterial values ​​of the samples against Staphylococcus aureus (ATCC 6538) and Escherichia coli (ATCC 1122938) were measured again according to GB / T 20944.2-2007 Evaluation of antibacterial properties of textiles Part 2: Absorption method. The results are shown in Table 1.

[0107] Moisture Retention Performance Test: 50cm*50cm samples of the fabrics prepared in Examples 1-7 and Comparative Example 1 were taken respectively, and the moisture regain of each sample at a temperature of 20°C and a relative humidity of 65% was measured according to the in-box heat weighing method in GB / T06503 Moisture Regain of Chemical Fibers (oven temperature 108°C, drying time 1h). The results are shown in Table 2; then each group of samples was machine washed at room temperature, the washing time was 10min, the water level was full, the stirring speed was 180r / min, the drying speed was 650r / min, the drying time was 6min, and then naturally air-dried, and the washing cycle was repeated. After air-drying for 50 times, the moisture regain of each sample at a temperature of 20°C and a relative humidity of 65% was measured again according to the in-box thermal weighing method in "GB / T06503 Moisture Regain of Chemical Fibers" (oven temperature 108°C, drying time 1h), and the results are shown in Table 2; the washed samples were washed and air-dried 50 times (i.e., washed 100 times in total) according to the conditions, and then the moisture regain of each sample at a temperature of 20°C and a relative humidity of 65% was measured again according to the in-box thermal weighing method in "GB / T06503 Moisture Regain of Chemical Fibers" (oven temperature 108°C, drying time 1h), and the results are shown in Table 2.

[0108] Table 1 Antibacterial performance test results

[0109]

[0110] Table 2 Moisturizing performance test results

[0111] Group Moisture regain (before washing) Moisture regain (after washing, 50 times) Moisture regain (after washing, 100 times) Example 1 1.51％ 1.51％ 1.48％ Example 2 1.32％ 1.30％ 1.30％ Example 3 1.05％ 1.04％ 1.04％ Example 4 1.83％ 1.82％ 1.81％ Example 5 1.86％ 1.85％ 1.85％ Example 6 1.77％ 1.77％ 1.76％ Example 7 1.72％ 1.70％ 1.70％ Comparative Example 1 1.51％ 1.04％ 0.58％

[0112] As shown in Table 1 and Table 2, before and after washing, compared with Comparative Example 1 (turmeric oil, Litsea cubeba oil and hyaluronic acid are not made into microcapsules), the antibacterial value and moisture regain of the fabric of Example 3 are significantly reduced. The result shows that in the present invention, natural antibacterial agents turmeric oil, Litsea cubeba oil and hyaluronic acid with antibacterial efficacy are made into core material solution; tert-butyl peroxybenzoate is decomposed by heat to produce free radicals that can induce a cross-linking reaction, so that acrylic acid and n-butyl acrylate are cross-linked to generate a cross-linked product, and the cross-linked product is used as a wall material to form a microcapsule; then the microcapsule is made into a finishing liquid with an epoxy silane cross-linking agent and a fatty alcohol polyoxyethylene ether, and the grey cloth made of polyester fiber is post-finished with the finishing liquid, and the fatty alcohol polyoxyethylene ether in the finishing liquid promotes the finishing liquid to penetrate into the fiber interior, and the epoxy silane cross-linking agent can associate with each other to form a mesh structure, which fixes the microcapsule on the fabric surface, thereby improving the durability of the antibacterial efficacy and the moisturizing efficacy.

[0113] As shown in Table 1 and Table 2, before and after washing, compared with Example 3 (without adding tert-butyl peroxyoctanoate), the decrease in the antibacterial value and moisture regain of the fabrics in Example 4 (adding tert-butyl peroxyoctanoate) and Example 5 (adding tert-butyl peroxyoctanoate) is significantly reduced. This result shows that in the present invention, the compound use of tert-butyl peroxyoctanoate and tert-butyl perbenzoate can shorten the crosslinking time, improve the crosslinking effect, increase the crosslinking density, and thus improve the storage stability of the microcapsules, and further enhance the durability of the antibacterial and moisturizing effects.

[0114] As shown in Table 1 and Table 2, before and after washing, compared with Example 3 (without adding dimethylaniline), the decrease in the antibacterial value and moisture regain of the fabrics in Example 6 (with adding dimethylaniline) and Example 7 (with adding dimethylaniline) is significantly reduced. This result shows that in the present invention, dimethylaniline can activate substances such as tert-butyl perbenzoate, thereby increasing the cross-linking density, improving the mechanical strength and stability of the microcapsules, and further improving the durability of the antibacterial and moisturizing effects.

[0115] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A method for preparing a moisturizing and antibacterial polyester fiber fabric, characterized in that: The preparation method comprises the following steps: S1. Adding turmeric oil, litsea cubeba oil and hyaluronic acid to a glacial acetic acid - butyl acetate mixed solvent to obtain a core material solution; adding acrylic acid and n-butyl acrylate to the core material solution to obtain a mixed solution; Adding a cross-linking agent to ethyl acetate to obtain an ethyl acetate solution, wherein the cross-linking agent includes tert-butyl perbenzoate; Adding the mixed solution to the aqueous solution of dodecylethoxysulfobetaine, adding the ethyl acetate solution after stirring, heating to carry out a cross-linking reaction, centrifuging, washing, and drying to obtain microcapsules; S2. Add epoxy silane crosslinker, fatty alcohol polyoxyethylene ether and the microcapsules to water and stir to obtain a finishing solution; The polyester fiber blank is placed in the finishing liquid for immersion, cleaning, drying and baking to obtain the moisturizing and antibacterial polyester fiber fabric.

2. The preparation method according to claim 1, characterized in that In step S1, the mass ratio of turmeric oil to litsea cubeba oil is 2-5:1-3; And / or, in step S1, the mass ratio of turmeric oil to hyaluronic acid is 2-5:4-7.

3. The preparation method according to claim 1, characterized in that: In step S1, the mass ratio of the n-butyl acrylate to the turmeric oil is 4-7:2-5; And / or, in step S1, the mass ratio of the cross-linking agent to n-butyl acrylate is 1-2:4-7; And / or, in step S1, the mass ratio of acrylic acid to n-butyl acrylate is 0.2-0.4:4-7; And / or, in step S1, the mass ratio of the dodecylethoxysulfobetaine to the acrylic resin is 0.05-0.12:1; And / or, in step S1, the mass ratio of the dodecylethoxysulfobetaine to the cross-linking agent is 0.1-0.3:

1.

4. The preparation method according to claim 1, characterized in that: In step S1, the temperature of the cross-linking reaction is 90-95° C., and the duration of the cross-linking reaction is 10-15 minutes.

5. The preparation method according to claim 1, characterized in that: In step S1, the cross-linking agent further includes tert-butyl peroxyoctanoate.

6. The preparation method according to claim 5, characterized in that: In step S1, the mass ratio of tert-butyl peroxyoctanoate to tert-butyl peroxybenzoate is 1-2:6-8.

7. The preparation method according to claim 1, characterized in that: The ethyl acetate solution in step S1 also contains dimethylaniline.

8. The preparation method according to claim 7, characterized in that: In step S1, the mass ratio of dimethylaniline to the cross-linking agent is 0.1-0.3:

1.

9. The preparation method according to claim 1, characterized in that: In the finishing solution of step S2, the concentration of the microcapsules is 20-35 g / L; And / or, in step S2, the mass ratio of the microcapsules to the epoxy silane crosslinking agent is 1:0.1-0.3; And / or, in step S2, the mass ratio of the microcapsules to the fatty alcohol polyoxyethylene ether is 1:0.02-0.05; And / or, in step S2, the mass ratio of the finishing liquid to the grey cloth is 15-20:1; And / or, in step S2, the padding temperature is 55-65°C; And / or, in step S2, during the padding process, the padding rate is 70wt%-75wt%; And / or, in step S2, the drying temperature is 100-110°C and the baking time is 1-2 minutes And / or, in step S2, the baking temperature is 130-140° C., and the baking time is 1-2 min.

10. The moisturizing and antibacterial polyester fiber fabric prepared by the method according to any one of claims 1 to 9.

Images