Clothing fabric with phase-change temperature-adjusting function and preparation method of clothing fabric

Abstract

The invention relates to the field of clothing fabrics with a temperature adjusting function, and particularly discloses a clothing fabric with a phase-change temperature adjusting function and a preparation method of the clothing fabric. The clothes fabric with the phase-change temperature-adjusting function is made of cotton fabric, and is soft in hand feeling and good in air permeability; butyl stearate is wrapped by melamine-formaldehyde resin to form a phase-change microcapsule, and the phase-change microcapsule has a phase-change temperature regulation function at a certain temperature; the phase change microcapsules have strong adhesive force on the porous polyvinyl alcohol and are not easy to fall off, and the porous structure not only can accommodate more phase change microcapsules, but also has certain strength and toughness to protect the phase change microcapsules, so that the phase change microcapsules are not easy to damage and lose efficacy; in addition, the polyvinyl alcohol porous material is good in energy storage performance, and after the polyvinyl alcohol porous material is combined with the fabric, the fabric has heat storage and temperature control performance and can be stimulated to recover at a certain temperature, so that wrinkles are eliminated.

Description

Technical Field

[0001] The invention relates to the field of temperature regulating functional clothing fabrics, in particular to a phase change temperature regulating functional clothing fabric and a preparation method thereof. Background Art

[0002] Fabrics, as an important material for making clothing, not only affect the overall style and aesthetics of clothing, but also different types of fabrics can give clothing different functions. With the development of science and technology and the improvement of the quality of social life, many shortcomings of traditional clothing fabrics have gradually been exposed, such as being too heavy to wear and too single in function. Phase change material is a material that can store and release latent heat by changing the state of matter within a certain temperature range to keep its own temperature constant. People use this property of phase change materials to arrange them inside fibers or on the surface of fabrics to prepare functional fabrics that can regulate temperature. However, during use, people have found that the temperature regulating functional fabrics have problems such as the temperature regulating function of the phase change material is not strong enough, the phase change temperature regulating material is easy to fall off, and it is easy to fail. Therefore, the present invention proposes a phase change temperature regulating functional clothing fabric and a preparation method thereof to solve these problems. Summary of the invention

[0003] The purpose of the present invention is to provide a phase change temperature regulating functional clothing fabric and a preparation method thereof, so as to solve the problems that the temperature regulating function of the phase change material is not strong enough, the phase change temperature regulating material is easy to fall off, break and lose effectiveness.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A preparation method of a phase-change temperature-regulating functional clothing fabric, specifically comprising:

[0006] Use functional cotton fabric as the base layer, pour the porous shaping and temperature regulating material on the functional cotton fabric and smooth it, then put the functional cotton fabric on the porous shaping and temperature regulating material, go through freeze-thaw cycles and freeze-drying to obtain phase change temperature regulating functional clothing fabric.

[0007] In the implementation manner of the present application, the porous shaping and temperature regulating material is prepared by mixing a polyvinyl alcohol solution, cyclodextrin and a phase change microcapsule emulsion and stirring at high speed.

[0008] In the embodiment of the present application, the mass ratio of the polyvinyl alcohol solution, cyclodextrin and phase change microcapsule emulsion is (95-105):(2-4):(18-22).

[0009] In the embodiment of the present application, the preparation method of the phase change temperature regulating microcapsule emulsion is:

[0010] Mix urea, melamine, formaldehyde aqueous solution and deionized water in a mass ratio of 1:(3-5):(12-14):(28-32), stir evenly, adjust the pH to 8-9, react at 65-75°C and 700-800rpm, and after the reaction is completed, obtain a prepolymer mixed solution;

[0011] Butyl stearate, sodium dodecylbenzene sulfonate, polyvinyl alcohol solution and modified prepolymer mixed solution are mixed, stirred evenly, reacted at 40-60°C and 17000-18000rpm, and after reaction, the pH is adjusted to 4-5 with citric acid, and the reaction is continued at 55-65°C and 440-460rpm. After reaction, the pH is adjusted to 8-9 with sodium hydroxide solution to obtain a phase change temperature regulating microcapsule emulsion.

[0012] In the embodiment of the present application, the mass ratio of butyl stearate, sodium dodecylbenzene sulfonate, polyvinyl alcohol solution and modified prepolymer mixed solution is (8-12):(4-6):(95-105):(48-52).

[0013] In the embodiment of the present application, the stirring speed during the high-speed stirring is 1400-1600 rpm.

[0014] In the implementation manner of the present application, the specific steps of preparing the functional cotton fabric are:

[0015] 1-Hydroxymethyl-5,5-dimethylhydantoin, isopropanol and dimethylamine solution are mixed uniformly in a mass ratio of (14-16):(150-160):(16-17), reacted at 30-35°C for 3-5h, heated to 90-100°C, and continued to react to obtain a mixed solution, epichlorohydrin and deionized water are added to the mixed solution, stirred uniformly, filtered, and the filtrate is dried to obtain a finishing agent A;

[0016] The 2-hydroxybenzophenone solution, the cyanuric chloride swelling solution and the sodium hydroxide solution are mixed in a mass ratio of (22-23):(15-16):(50-51), filtered after the reaction is completed, the filter residue is washed with ethanol and deionized water, and dried to obtain a finishing agent B;

[0017] Finishing agent A, finishing agent B, sodium carbonate and deionized water are mixed and stirred evenly to prepare a finishing solution, natural cotton fabric is dipped into the finishing solution, and vacuum dried to obtain functional cotton fabric.

[0018] In the implementation manner of the present application, the mass ratio of the finishing agent A, finishing agent B, sodium carbonate and deionized water is (20-40):(20-40):(2-3):(960-980).

[0019] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention adopts cotton fabric as material, which has a soft hand feel and good air permeability; the phase change material butyl stearate is wrapped with microcapsules, and the phase change temperature is in the temperature range suitable for the human body; the phase change microcapsules have strong adhesion on the porous polyvinyl alcohol and are not easy to fall off. The porous structure can not only accommodate more phase change microcapsules, but also has certain strength and toughness, protecting the phase change microcapsules and making them not easy to break and lose effectiveness; in addition, the porous polyvinyl alcohol material has good energy storage properties. After being combined with the fabric, the fabric has heat storage and temperature control properties, and can also be stimulated to generate a return at a certain temperature. The antibacterial agent on the cotton fabric is synthesized from 1-hydroxymethyl-5,5-dimethylhydantoin and dimethylamine, and has excellent antibacterial properties. The oxidized halogen atoms consumed by killing bacteria can be replenished after rinsing with bleaching liquid, so that the antibacterial function is regenerated; the ultraviolet absorber on the cotton fabric is synthesized from cyanuric chloride and 2-hydroxybenzophenone, and has a stable conjugated structure. After absorbing ultraviolet rays, it becomes an unstable ionic structure, and then releases heat energy to restore to a stable conjugated structure. It can efficiently absorb ultraviolet light, and the absorbent molecules contain multiple hydroxyl groups, which have good adsorption capacity for fibers. Therefore, the phase change temperature regulating function of the phase change temperature regulating function clothing fabric made by the present invention is better, the phase change temperature regulating microcapsules have good adhesion, are not easy to fall off, are not easy to break and lose effectiveness, and have both antibacterial and anti-ultraviolet effects. DETAILED DESCRIPTION

[0020] 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 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.

[0021] β-cyclodextrin (C104384) and nano-titanium dioxide (T298674) were provided by Shanghai Aladdin, polyvinyl alcohol (P-84170) was provided by Tianjin Xiensi, and cotton fabric (133g / m 2 ) is provided by Changshu Yanhao.

[0022] Embodiment 1: A phase-change temperature-regulating functional clothing fabric and a preparation method thereof, comprising the following steps:

[0023] Step 1: 1-hydroxymethyl-5,5-dimethylhydantoin, isopropanol and dimethylamine aqueous solution are mixed in a mass ratio of 15:155:16.5, reacted at 33°C and 50rpm for 4h, heated to 95°C after the reaction, and continued to react for 30min to obtain a mixed solution, the mixed solution, epichlorohydrin and deionized water are mixed in a mass ratio of 18.5:9:350, stirred evenly, filtered, and the filtrate is dried to obtain finishing agent A.

[0024] Step 2: 2-hydroxybenzophenone and acetone were mixed in a mass ratio of 1:8 to obtain a 2-hydroxybenzophenone solution, cyanuric chloride and acetone were mixed in a mass ratio of 2.5:15, and swelled at 2°C and 30rpm for 10min to obtain a cyanuric chloride swelling solution, and the 2-hydroxybenzophenone solution, the cyanuric chloride swelling solution and the sodium hydroxide solution were mixed in a mass ratio of 22.5:15.5:50.5, reacted for 5h, filtered, washed the filter residue with ethanol and deionized water, and dried to obtain a finishing agent B.

[0025] Step 3: Finishing agent A, finishing agent B, sodium carbonate and deionized water are mixed in a mass ratio of 30:30:2.5:970, stirred evenly to prepare a finishing solution, and the natural cotton fabric is dipped into the finishing solution (rolling rate 80%), and vacuum dried to obtain a functional cotton fabric.

[0026] Step 4: Mix urea, melamine, formaldehyde aqueous solution and deionized water in a mass ratio of 1:4:13:30, stir evenly, add triethanolamine to adjust the pH to 8-9, react at 70° C. and 750 rpm for 30 minutes to obtain a modified prepolymer mixed solution.

[0027] Step 5: Mix polyvinyl alcohol and deionized water in a mass ratio of 1:19, stir evenly, dissolve at 90°C for 2h, filter to obtain polyvinyl alcohol solution, mix butyl stearate, sodium dodecylbenzene sulfonate, polyvinyl alcohol solution, and modified prepolymer mixed solution in a mass ratio of 10:5:100:50, react at 50°C and 17500rpm for 15min, adjust the pH to 4-5 with citric acid, react at 60°C and 450rpm for 2h, and after the reaction, adjust the pH to 8-9 with sodium hydroxide solution to obtain a phase change temperature regulating microcapsule emulsion.

[0028] Step 6: Mix polyvinyl alcohol and deionized water in a mass ratio of 1:10, stir evenly, dissolve at 90°C for 2 hours, filter to obtain a polyvinyl alcohol solution, mix the polyvinyl alcohol solution, β-cyclodextrin, and phase change temperature regulating capsule emulsion in a mass ratio of 100:3:20, stir at a speed of 1500rpm for 10 minutes, perform physical foaming, and obtain a porous shaping temperature regulating material.

[0029] Step 7: Place the functional cotton fabric at the bottom of the mold, pour the porous shaping and temperature regulating material into the mold, with a height of 4 mm on the cotton fabric, then place the functional cotton fabric on the porous shaping and temperature regulating material, freeze the mold in a -26°C environment, and after 5 freeze-thaw cycles, freeze-dry to obtain the functional fabric.

[0030] Embodiment 2: A phase-change temperature-regulating functional clothing fabric and a preparation method thereof, comprising the following steps:

[0031] Step 1: 1-hydroxymethyl-5,5-dimethylhydantoin, isopropanol and dimethylamine aqueous solution are mixed in a mass ratio of 14:150:16, reacted at 33°C and 40-60rpm for 4h, heated to 95°C after the reaction, and continued to react for 30min to obtain a mixed solution, the mixed solution, epichlorohydrin and deionized water are mixed in a mass ratio of 18:8:345, stirred evenly, filtered, and the filtrate is dried to obtain finishing agent A.

[0032] Step 2: 2-hydroxybenzophenone and acetone are mixed in a mass ratio of 1:8 to obtain a 2-hydroxybenzophenone solution, cyanuric chloride and acetone are mixed in a mass ratio of 2.5:15, and swelled at 2°C and 30rpm for 10min to obtain a cyanuric chloride swelling solution, and the 2-hydroxybenzophenone solution, the cyanuric chloride swelling solution and the sodium hydroxide solution are mixed in a mass ratio of 22:15:50, react for 5h, filter, wash the filter residue with ethanol and deionized water, and dry to obtain a finishing agent B.

[0033] Step 3: Finishing agent A, finishing agent B, sodium carbonate and deionized water are mixed in a mass ratio of 30:30:2.5:970, stirred evenly to prepare a finishing solution, and the natural cotton fabric is dipped into the finishing solution (rolling rate 80%), and vacuum dried to obtain a functional cotton fabric.

[0034] Step 4: Mix urea, melamine, formaldehyde aqueous solution and deionized water in a mass ratio of 1:3:12:28, stir evenly, add triethanolamine to adjust the pH to 8-9, react at 70°C and 750rpm for 30min to obtain a modified prepolymer mixed solution.

[0035] Step 5: Mix polyvinyl alcohol and deionized water in a mass ratio of 1:18, stir evenly, dissolve at 90°C for 2h, filter to obtain polyvinyl alcohol solution, mix butyl stearate, sodium dodecylbenzene sulfonate, polyvinyl alcohol solution, and modified prepolymer mixed solution in a mass ratio of 8:4:95:48, react at 50°C and 17500rpm for 15min, adjust the pH to 4-5 with citric acid, react at 60°C and 450rpm for 2h, and after the reaction, adjust the pH to 8-9 with sodium hydroxide solution to obtain a phase change temperature regulating microcapsule emulsion.

[0036] Step 6: Mix polyvinyl alcohol and deionized water in a mass ratio of 1:9, stir evenly, dissolve at 90°C for 2 hours, filter to obtain a polyvinyl alcohol solution, mix the polyvinyl alcohol solution, β-cyclodextrin, and phase change temperature regulating capsule emulsion in a mass ratio of 95:2:18, stir at a speed of 1500rpm for 10 minutes, perform physical foaming, and obtain a porous shaping temperature regulating material.

[0037] Step 7: Place the functional cotton fabric at the bottom of the mold, pour the porous shaping and temperature regulating material into the mold, with a height of 4 mm on the cotton fabric, then place the functional cotton fabric on the porous shaping and temperature regulating material, freeze the mold in a -26°C environment, and after 5 freeze-thaw cycles, freeze-dry to obtain the functional fabric.

[0038] Embodiment 3: A phase-change temperature-regulating functional clothing fabric and a preparation method thereof, comprising the following steps:

[0039] Step 1: 1-hydroxymethyl-5,5-dimethylhydantoin, isopropanol and dimethylamine aqueous solution are mixed in a mass ratio of 16:160:17, reacted at 33°C and 50rpm for 4h, heated to 95°C after the reaction, and continued to react for 30min to obtain a mixed solution, the mixed solution, epichlorohydrin and deionized water are mixed in a mass ratio of 19:10:355, stirred evenly, filtered, and the filtrate is dried to obtain finishing agent A.

[0040] Step 2: 2-hydroxybenzophenone and acetone are mixed in a mass ratio of 1:8 to obtain a dihydroxybenzophenone solution, cyanuric chloride and acetone are mixed in a mass ratio of 3:16, and swelled at 2°C and 30rpm for 10 minutes to obtain a cyanuric chloride swelling solution, and the dihydroxybenzophenone solution, the cyanuric chloride swelling solution and the sodium hydroxide solution are mixed in a mass ratio of 23:16:51, reacted for 4 to 6 hours, and then filtered, the filter residue is washed with ethanol and deionized water, and dried to obtain a finishing agent B.

[0041] Step 3: Finishing agent A, finishing agent B, sodium carbonate and deionized water are mixed in a mass ratio of 30:30:2.5:970, stirred evenly to prepare a finishing solution, and the natural cotton fabric is dipped into the finishing solution (rolling rate 80%), and vacuum dried to obtain a functional cotton fabric.

[0042] Step 4: Mix urea, melamine, formaldehyde aqueous solution and deionized water in a mass ratio of 1:5:14:32, stir evenly, add triethanolamine to adjust the pH to 8-9, react at 70° C. and 750 rpm for 30 minutes to obtain a modified prepolymer mixed solution.

[0043] Step 5: Mix polyvinyl alcohol and deionized water in a mass ratio of 1:20, stir evenly, dissolve at 90°C for 2h, filter to obtain polyvinyl alcohol solution, mix butyl stearate, sodium dodecylbenzene sulfonate, polyvinyl alcohol solution, and modified prepolymer mixed solution in a mass ratio of 12:6:105:52, react at 50°C and 17500rpm for 15min, adjust the pH to 4-5 with citric acid, react at 60°C and 450rpm for 2h, and after the reaction, adjust the pH to 8-9 with sodium hydroxide solution to obtain a phase change temperature regulating microcapsule emulsion.

[0044] Step 6: Mix polyvinyl alcohol and deionized water in a mass ratio of 1:11, stir evenly, dissolve at 90°C for 2 hours, filter to obtain a polyvinyl alcohol solution, mix the polyvinyl alcohol solution, β-cyclodextrin, and phase change temperature regulating capsule emulsion in a mass ratio of 105:4:22, stir at a speed of 1500rpm for 10 minutes, perform physical foaming, and obtain a porous shaping temperature regulating material.

[0045] Step 7: Place the functional cotton fabric at the bottom of the mold, pour the porous shaping and temperature regulating material into the mold, with a height of 4 mm on the cotton fabric, then place the functional cotton fabric on the porous shaping and temperature regulating material, freeze the mold in a -26°C environment, and after 5 freeze-thaw cycles, freeze-dry to obtain the functional fabric.

[0046] Comparative Example 1: Taking Example 1 as a control, the phase change temperature regulating microcapsule emulsion is not added in Comparative Example 1, and the other processes remain unchanged.

[0047] A phase-change temperature-regulating functional clothing fabric and a preparation method thereof, comprising the following steps:

[0048] Step 1: 1-hydroxymethyl-5,5-dimethylhydantoin, isopropanol and dimethylamine aqueous solution are mixed in a mass ratio of 14:150:16, reacted at 33°C and 40-60rpm for 4h, heated to 95°C after the reaction, and continued to react for 30min to obtain a mixed solution, the mixed solution, epichlorohydrin and deionized water are mixed in a mass ratio of 18:8:345, stirred evenly, filtered, and the filtrate is dried to obtain finishing agent A.

[0049] Step 2: 2-hydroxybenzophenone and acetone are mixed in a mass ratio of 1:8 to obtain a 2-hydroxybenzophenone solution, cyanuric chloride and acetone are mixed in a mass ratio of 2.5:15, and swelled at 2°C and 30rpm for 10min to obtain a cyanuric chloride swelling solution, and the 2-hydroxybenzophenone solution, the cyanuric chloride swelling solution and the sodium hydroxide solution are mixed in a mass ratio of 22:15:50, react for 5h, filter, and wash the filter residue with ethanol and deionized water to obtain a finishing agent B.

[0050] Step 3: Finishing agent A, finishing agent B, sodium carbonate and deionized water are mixed in a mass ratio of 30:30:2.5:970, stirred evenly to prepare a finishing solution, and the natural cotton fabric is dipped into the finishing solution (rolling rate 80%), and vacuum dried to obtain a functional cotton fabric.

[0051] Step 4: Mix polyvinyl alcohol and deionized water in a mass ratio of 1:9, stir evenly, dissolve at 90°C for 2 hours, filter to obtain a polyvinyl alcohol solution, mix the polyvinyl alcohol solution and β-cyclodextrin in a mass ratio of 95:2, stir at a speed of 1500 rpm for 10 minutes, perform physical foaming, and obtain a porous shaping material.

[0052] Step 5: Place the functional cotton fabric on the bottom layer of the mold, pour the porous shaping material into the mold, and pour it on the cotton fabric to a height of 4 mm. Then place the functional cotton fabric on the porous shaping material, and freeze the mold in a -26°C environment. After 5 freeze-thaw cycles, freeze-dry to obtain the functional fabric.

[0053] Comparative Example 2: Using Example 1 as a control, Comparative Example 2 does not use finishing agent A, and the other processes remain unchanged.

[0054] A phase-change temperature-regulating functional clothing fabric and a preparation method thereof, comprising the following steps:

[0055] Step 1: 2-hydroxybenzophenone and acetone are mixed in a mass ratio of 1:8 to obtain a 2-hydroxybenzophenone solution, cyanuric chloride and acetone are mixed in a mass ratio of 2.5:15, and swelled at 2°C and 30rpm for 10min to obtain a cyanuric chloride swelling solution, the 2-hydroxybenzophenone solution, the cyanuric chloride swelling solution and the sodium hydroxide solution are mixed in a mass ratio of 22:15:50, react for 5h, filter, and wash the filter residue with ethanol and deionized water to obtain a finishing agent B.

[0056] Step 2: Mix finishing agent B, sodium carbonate and deionized water in a mass ratio of 30:2.5:970, stir evenly to prepare finishing liquid B, dip natural cotton fabric into the anti-finishing liquid B (rolling rate 80%), and vacuum dry to obtain functional cotton fabric.

[0057] Step 3: Mix urea, melamine, formaldehyde aqueous solution and deionized water in a mass ratio of 1:3:12:28, stir evenly, add triethanolamine to adjust the pH to 8-9, react at 70°C and 750rpm for 30min to obtain a modified prepolymer mixed solution.

[0058] Step 4: Mix polyvinyl alcohol and deionized water in a mass ratio of 1:18, stir evenly, dissolve at 90°C for 2h, filter to obtain polyvinyl alcohol solution, mix butyl stearate, sodium dodecylbenzene sulfonate, polyvinyl alcohol solution, and modified prepolymer mixed solution in a mass ratio of 8:4:95:48, react at 50°C and 17500rpm for 15min, adjust the pH to 4-5 with citric acid, react at 60°C and 450rpm for 2h, and after the reaction, adjust the pH to 8-9 with sodium hydroxide solution to obtain a phase change temperature regulating microcapsule emulsion.

[0059] Step 5: Mix polyvinyl alcohol and deionized water in a mass ratio of 1:9, stir evenly, dissolve at 90°C for 2 hours, filter to obtain a polyvinyl alcohol solution, mix the polyvinyl alcohol solution, β-cyclodextrin, and phase change temperature regulating capsule emulsion in a mass ratio of 95:2:18, stir at a speed of 1500rpm for 10 minutes, perform physical foaming, and obtain a porous shaping temperature regulating material.

[0060] Step 6: Place the functional cotton fabric on the bottom layer of the mold, pour the porous shaping and temperature regulating material into the mold, with a height of 4mm on the cotton fabric, then place the functional cotton fabric on the porous shaping and temperature regulating material, freeze the mold in a -26°C environment, and after 5 freeze-thaw cycles, freeze-dry to obtain the phase change temperature regulating functional clothing fabric.

[0061] Comparative Example 3: Using Example 1 as a control, Comparative Example 3 does not use finishing agent B, and the other processes remain unchanged.

[0062] A phase-change temperature-regulating functional clothing fabric and a preparation method thereof, comprising the following steps:

[0063] Step 1: 1-hydroxymethyl-5,5-dimethylhydantoin, isopropanol and dimethylamine aqueous solution are mixed in a mass ratio of 14:150:16, reacted at 33°C and 40-60rpm for 4h, heated to 95°C after the reaction, and continued to react for 30min to obtain a mixed solution, the mixed solution, epichlorohydrin and deionized water are mixed in a mass ratio of 18:8:345, stirred evenly, filtered, and the filtrate is dried to obtain finishing agent A.

[0064] Step 2: Mix finishing agent A and deionized water in a mass ratio of 30:970, stir evenly to prepare finishing liquid A, dip natural cotton fabric into the finishing liquid A (rolling rate 80%), and vacuum dry to obtain functional cotton fabric.

[0065] Step 3: Mix urea, melamine, formaldehyde aqueous solution and deionized water in a mass ratio of 1:3:12:28, stir evenly, add triethanolamine to adjust the pH to 8-9, react at 70°C and 750rpm for 30min to obtain a modified prepolymer mixed solution.

[0066] Step 4: Mix polyvinyl alcohol and deionized water in a mass ratio of 1:18, stir evenly, dissolve at 90°C for 2h, filter to obtain polyvinyl alcohol solution, mix butyl stearate, sodium dodecylbenzene sulfonate, polyvinyl alcohol solution, and modified prepolymer mixed solution in a mass ratio of 8:4:95:48, react at 50°C and 17500rpm for 15min, adjust the pH to 4-5 with citric acid, react at 60°C and 450rpm for 2h, and after the reaction, adjust the pH to 8-9 with sodium hydroxide solution to obtain a phase change temperature regulating microcapsule emulsion.

[0067] Step 5: Mix polyvinyl alcohol and deionized water in a mass ratio of 1:9, stir evenly, dissolve at 90°C for 2 hours, filter to obtain a polyvinyl alcohol solution, mix the polyvinyl alcohol solution, β-cyclodextrin, and phase change temperature regulating capsule emulsion in a mass ratio of 95:2:18, stir at a speed of 1500rpm for 10 minutes, perform physical foaming, and obtain a porous shaping temperature regulating material.

[0068] Step 6: Place the functional cotton fabric on the bottom layer of the mold, pour the porous shaping and temperature regulating material into the mold, with a height of 4mm on the cotton fabric, then place the functional cotton fabric on the porous shaping and temperature regulating material, freeze the mold in a -26°C environment, and after 5 freeze-thaw cycles, freeze-dry to obtain the phase change temperature regulating functional clothing fabric.

[0069] Detection experiment:

[0070] Phase change temperature regulation function test: Take one piece of cotton fabric prepared in Example 1, Example 2, Example 3, Comparative Example 1, Comparative Example 2, and Comparative Example 3, cut out 5 cm × 5 cm samples, place 6 samples in a 25°C constant temperature box for 12 hours, and then lay them flat on a 40°C constant temperature heating plate. Measure the surface temperature of the sample every 10 seconds until the surface temperature of the sample reaches 40°C, and evaluate its temperature regulation function.

[0071] Antibacterial performance test: The inhibition rate of Staphylococcus aureus was tested according to "Evaluation of Antibacterial Properties of Textiles Part 3: Oscillation Method" (GB / T20944.3-2008).

[0072] Anti-ultraviolet performance test: Determined according to "Evaluation of UV Protection Performance of Textiles" (GB / T 18830-2009).

[0073]

[0074]

[0075] Conclusion: From the experiment, it can be seen that the performance of Example 1 is better than that of Comparative Examples 1, 2 and 3. Comparative Example 1 does not add phase change microcapsule emulsion, and the temperature rise speed in the test experiment is faster than that of Example 1; Comparative Example 2 does not use antibacterial agent to finish cotton fabric, and the antibacterial rate is reduced in the test experiment; Comparative Example 3 does not use anti-ultraviolet agent to finish cotton fabric, and the ultraviolet transmittance is increased in the experiment. Therefore, it can be explained that the functional clothing fabric of the present invention has the effects of phase change temperature regulation, antibacterial and anti-ultraviolet.

[0076] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for preparing a phase-change temperature-regulating functional clothing fabric, characterized in that: The preparation method of the phase change temperature regulating functional clothing fabric is specifically as follows: Use functional cotton fabric as the base layer, pour the porous shaping and temperature regulating material on the functional cotton fabric and smooth it, then put the functional cotton fabric on the porous shaping and temperature regulating material, go through freeze-thaw cycles and freeze-drying to obtain phase change temperature regulating functional clothing fabric.

2. The method for preparing a phase change temperature regulating functional clothing fabric according to claim 1, characterized in that: The porous shaping and temperature regulating material is prepared by mixing polyvinyl alcohol solution, cyclodextrin and phase change microcapsule emulsion and stirring at high speed.

3. The method for preparing a phase change temperature regulating functional clothing fabric according to claim 2, characterized in that: The preparation method of phase change temperature regulating microcapsule emulsion is as follows: Mix urea, melamine, formaldehyde aqueous solution and deionized water in a mass ratio of 1:(3-5):(12-14):(28-32), stir evenly, adjust the pH to 8-9, react at 65-75°C and 700-800rpm, and after the reaction is completed, obtain a prepolymer mixed solution; Butyl stearate, sodium dodecylbenzene sulfonate, polyvinyl alcohol solution and modified prepolymer mixed solution are mixed, stirred evenly, reacted at 40-60°C and 17000-18000rpm, and after reaction, the pH is adjusted to 4-5 with citric acid, and the reaction is continued at 55-65°C and 440-460rpm. After reaction, the pH is adjusted to 8-9 with sodium hydroxide solution to obtain a phase change temperature regulating microcapsule emulsion.

4. The method for preparing a phase change temperature regulating functional clothing fabric according to claim 2, characterized in that: The mass ratio of polyvinyl alcohol solution, cyclodextrin and phase change microcapsule emulsion is (95-105):(2-4):(18-22).

5. The method for preparing a phase change temperature regulating functional clothing fabric according to claim 2, characterized in that: The speed during high-speed stirring is 1400-1600rpm.

6. The method for preparing a phase-change temperature-regulating functional clothing fabric according to claim 3, characterized in that: The mass ratio of butyl stearate, sodium dodecylbenzene sulfonate, polyvinyl alcohol solution and modified prepolymer mixed liquid is (8-12):(4-6):(95-105):(48-52).

7. The method for preparing a phase-change temperature-regulating functional clothing fabric according to claim 1, characterized in that: The preparation method of functional cotton fabric is: 1-Hydroxymethyl-5,5-dimethylhydantoin, isopropanol and dimethylamine solution are mixed uniformly in a mass ratio of (14-16):(150-160):(16-17), reacted at 30-35°C for 3-5h, heated to 90-100°C, and continued to react to obtain a mixed solution, epichlorohydrin and deionized water are added to the mixed solution, stirred uniformly, filtered, and the filtrate is dried to obtain a finishing agent A; The 2-hydroxybenzophenone solution, the cyanuric chloride swelling solution and the sodium hydroxide solution are mixed in a mass ratio of (22-23):(15-16):(50-51), filtered after the reaction is completed, the filter residue is washed with ethanol and deionized water, and dried to obtain a finishing agent B; Finishing agent A, finishing agent B, sodium carbonate and deionized water are mixed and stirred evenly to prepare a finishing solution, natural cotton fabric is dipped into the finishing solution, and vacuum dried to obtain functional cotton fabric.

8. The method for preparing a phase-change temperature-regulating functional clothing fabric according to claim 7, characterized in that: The mass ratio of finishing agent A, finishing agent B, sodium carbonate and deionized water is (20-40):(20-40):(2-3):(960-980).

Images