Cold catalyst long-acting formaldehyde removal curtain cloth and preparation process thereof
By coating the curtain fabric with a cold catalyst material, the problem of existing formaldehyde removal technologies relying on light sources or having limited adsorption capacity is solved, enabling continuous formaldehyde decomposition under no-light conditions and improving indoor air quality.
Patent Information
- Application Number
- CN202411592050.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-01-07
AI Technical Summary
Existing formaldehyde removal technologies, such as activated carbon adsorption and photocatalytic decomposition, have limited adsorption capacity or rely on light sources, resulting in low purification efficiency in indoor environments and difficulty in continuously and effectively removing formaldehyde.
Cold catalyst materials (such as titanium dioxide, magnesium oxide, and bismuth aluminate) are coated onto the curtain fabric to catalyze the decomposition of formaldehyde. The preparation process includes pretreatment, coating, drying, and curing to ensure uniform mixing and adhesion of the components, forming a stable coating.
It achieves continuous and effective formaldehyde decomposition under no-light conditions, providing all-weather formaldehyde removal, improving indoor air quality, and ensuring the stability and catalytic activity of the material.
Smart Images
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Abstract
Description
Technical Field
[0001] The present application relates to the field of curtain technology, and in particular to a cold catalyst long-term formaldehyde removal curtain fabric and a preparation process thereof. Background Art
[0002] With the development of modern industry, volatile organic compounds (VOCs) such as formaldehyde have become one of the main sources of indoor air pollution, seriously threatening people's health. According to research, the formaldehyde concentration in newly renovated homes, offices and public places often exceeds the safety standard by several times. Long-term exposure to high-concentration formaldehyde environments can cause respiratory diseases, allergic reactions, and even increase the risk of cancer. Therefore, finding effective and lasting formaldehyde removal technology has become an urgent problem to be solved.
[0003] At present, the formaldehyde removal technologies available on the market mainly include activated carbon adsorption and photocatalytic decomposition. However, these technologies all have certain limitations. The activated carbon used in the activated carbon adsorption method has good adsorption capacity due to its porous structure, which can temporarily capture formaldehyde molecules in the air, but its adsorption capacity is limited. Once saturated, the formaldehyde in the activated carbon will be released back into the air, causing secondary pollution, posing a potential threat to the environment and human health. The photocatalyst in the photocatalytic decomposition technology can efficiently decompose harmful substances such as formaldehyde under ultraviolet light to produce harmless water and carbon dioxide. However, the effect of photocatalysts is highly dependent on ultraviolet light sources. In indoor environments, due to the limitations of lighting conditions, their activity decreases significantly, and the purification efficiency is greatly reduced.
[0004] As a common interior decoration, the formaldehyde removal function of curtain fabrics can be better integrated into daily life. At present, common formaldehyde-removing curtains mainly rely on activated carbon for physical adsorption, or use photocatalysts to decompose under light conditions. However, both methods have obvious limitations, which restricts their promotion and application in real life.
[0005] Therefore, in order to fill this market gap and improve indoor air quality, it is urgent to develop a cold catalyst long-term formaldehyde-removing curtain fabric that does not rely on light sources and can continuously and effectively decompose formaldehyde. Summary of the invention
[0006] In order to solve at least one of the above technical problems, a cold catalyst long-term formaldehyde removal curtain cloth is developed which is independent of light source and can continuously and effectively decompose formaldehyde. The present application provides a cold catalyst long-term formaldehyde removal curtain cloth and a preparation process thereof.
[0007] On the one hand, the present application provides a preparation process for a cold catalyst long-term formaldehyde removal curtain fabric, comprising the following steps: S1. Pretreatment of curtain fabric substrate; S2, preparing cold catalyst solution; S3, applying the cold catalyst solution on the surface of the curtain fabric; S4, drying the coated curtain fabric, heating and curing, arranging, and shaping to obtain a cold catalyst long-term formaldehyde removal curtain fabric; The cold catalyst solution comprises 10 to 20 parts of titanium dioxide, 5 to 10 parts of magnesium oxide, 5 to 10 parts of bismuth aluminate, 1 to 5 parts of a surfactant, 2 to 8 parts of a binder, 1 to 5 parts of hydroxypropyl methylcellulose modified polyacrylate, and 40 to 80 parts of a solvent; The preparation method of the cold catalyst solution is: Step 1: stirring and mixing the surfactant, the binder, the hydroxypropyl methylcellulose modified polyacrylate and the solvent to prepare a premixed solution; Step 2: adding the titanium dioxide, magnesium oxide and bismuth aluminate into the premixed solution, stirring and mixing to obtain a mixed solution; Step 3: adjusting the pH value of the mixed solution to 6-8, filtering, and standing to obtain the cold catalyst solution.
[0008] By adopting the above technical solution, when the harmful gas formaldehyde contacts the cold catalyst material, it will be adsorbed by the active sites on the surface of the cold catalyst material, which helps to increase the contact opportunities between the harmful gas molecules and the cold catalyst material and improve the catalytic efficiency. The cold catalyst material can promote the breaking of chemical bonds in the harmful gas molecules and decompose them into harmless small molecules. For formaldehyde, it is usually decomposed into water and carbon dioxide, both of which are harmless to the human body.
[0009] The present application utilizes a specific cold catalyst material to catalytically decompose formaldehyde without light exposure, thereby achieving effective degradation of formaldehyde. By combining it with curtain fabric, the curtain itself has the ability to continuously remove formaldehyde. The cold catalyst long-term formaldehyde removal curtain fabric of the present application does not rely on light sources, has good chemical stability, and can maintain its catalytic activity for a long time.
[0010] In the preparation process of the present application, uniform mixing of various components is ensured, the activity of the cold catalyst is improved, the best catalytic effect is achieved, and the stability of the cold catalyst material is also improved.
[0011] In the present application, titanium dioxide, magnesium oxide and bismuth aluminate work together to improve catalytic activity and enhance catalytic effect, thereby improving the degradation efficiency of formaldehyde. The cold catalyst long-term formaldehyde removal curtain fabric prepared in the present application does not rely on light sources, remains active in a lightless environment, and can continue to effectively decompose formaldehyde with high catalytic activity.
[0012] Optionally, in step S1, the curtain fabric substrate is selected from one of cotton, linen and polyester fibers.
[0013] By adopting the above technical scheme, the curtain cloth substrate selected in this application has good air permeability, which helps the formaldehyde molecules in the air to better contact the cold catalyst material on the surface of the curtain cloth, and has good durability, ensuring that the curtain cloth still maintains good catalytic performance after long-term use.
[0014] Optionally, in step S1, the curtain fabric substrate pretreatment includes cleaning the curtain fabric substrate, removing surface impurities, and then performing a drying process.
[0015] By adopting the above-mentioned technical scheme, the present application pre-treats the curtain fabric substrate, which can improve the surface properties of the curtain fabric, making it easier to combine with the cold catalyst material, and can also improve the adhesion between the cold catalyst material and the curtain fabric, ensuring that the cold catalyst material can be more firmly attached to the curtain fabric.
[0016] Optionally, in step S3, the coating method is spraying, the coating thickness is 50-100 μm, and the coating environment temperature is 15-30° C.
[0017] By adopting the above technical solution, the coating method, coating thickness and coating ambient temperature of the present application can ensure that the cold catalyst material is evenly and firmly attached to the curtain fabric and exerts the best catalytic effect.
[0018] Optionally, in step S4, the drying temperature is 60-70° C., and the drying time is 30-60 min.
[0019] By adopting the above technical solution, the drying temperature and drying time of the present application help to maintain the stability of the cold catalyst material and avoid material changes or activity losses that may be caused by high temperature.
[0020] Optionally, in step S4, the curing temperature is 80-100° C. and the curing time is 15-30 min.
[0021] By adopting the above technical solution, the curing temperature and curing time of the present application enable the cold catalyst material to be stably and fully cured on the curtain fabric to form a firm coating.
[0022] Optionally, the surfactant is selected from at least one of nonylphenol polyoxyethylene ether, sodium dodecyl sulfate and sodium lauryl sulfate.
[0023] By adopting the above technical solution, the surfactant of the present application can improve the dispersibility of the cold catalyst material, making it more evenly distributed on the surface of the curtain fabric, and can also improve the adhesion of the cold catalyst material.
[0024] Optionally, the binder is selected from at least one of polyvinyl alcohol, polyvinyl pyrrolidone and γ-aminopropyltriethoxysilane.
[0025] By adopting the above technical solution, the adhesive of the present application can improve the adhesion between the cold catalyst material and the curtain fabric, ensure that the cold catalyst material is attached to the curtain fabric for a long time, and improve the stability of the cold catalyst material.
[0026] Optionally, the hydroxypropyl methylcellulose modified polyacrylate is prepared by comprising hydroxypropyl methylcellulose and methyl acrylate, and the weight ratio of the hydroxypropyl methylcellulose to methyl acrylate is 1:3-5.
[0027] By adopting the above technical solution, the present application adds hydroxypropyl methylcellulose modified polyacrylate, which helps to form a stable coating, improve the stability and durability of the cold catalyst material, and ensure that it can maintain good catalytic performance after long-term use.
[0028] In a second aspect, the present application provides a cold catalyst long-acting formaldehyde-removing curtain fabric, which is prepared using the above-mentioned cold catalyst long-acting formaldehyde-removing curtain fabric preparation process.
[0029] By adopting the above-mentioned technical scheme, the cold catalyst long-term formaldehyde removal curtain cloth of the present application does not rely on light sources, and can function even in the absence of light conditions, providing all-weather formaldehyde removal effects, and can also remove formaldehyde for a long time, providing users with a healthier and more comfortable living and working environment.
[0030] In summary, the present invention includes at least one of the following beneficial technical effects: 1. The present application utilizes a specific cold catalyst material to catalytically decompose formaldehyde without the need for light, thereby achieving effective degradation of formaldehyde.
[0031] 2. The preparation process of the present application ensures uniform mixing of various components, improves the activity of the cold catalyst, and achieves the best catalytic effect.
[0032] 3. The cold catalyst long-term formaldehyde removal curtain fabric of the present application does not rely on light sources and can function even in the absence of light, providing an all-weather formaldehyde removal effect and long-term formaldehyde removal, providing users with a healthier and more comfortable living and working environment. DETAILED DESCRIPTION
[0033] The present application is further described in detail below with reference to the embodiments.
[0034] The present application designs a preparation process of a cold catalyst long-term formaldehyde removal curtain fabric, comprising the following steps: S1. Pretreatment of curtain fabric substrate; S2, preparing cold catalyst solution; S3, applying the cold catalyst solution on the surface of the curtain fabric; S4, drying the coated curtain fabric, heating and curing, arranging, and shaping to obtain a cold catalyst long-term formaldehyde removal curtain fabric; The cold catalyst solution comprises 10 to 20 parts of titanium dioxide, 5 to 10 parts of magnesium oxide, 5 to 10 parts of bismuth aluminate, 1 to 5 parts of a surfactant, 2 to 8 parts of a binder, 1 to 5 parts of hydroxypropyl methylcellulose modified polyacrylate, and 40 to 80 parts of a solvent; The preparation method of the cold catalyst solution is: Step 1: stirring and mixing the surfactant, the binder, the hydroxypropyl methylcellulose modified polyacrylate and the solvent to prepare a premixed solution; Step 2: adding the titanium dioxide, magnesium oxide and bismuth aluminate into the premixed solution, stirring and mixing to obtain a mixed solution; Step 3: adjusting the pH value of the mixed solution to 6-8, filtering, and standing to obtain the cold catalyst solution.
[0035] The cold catalyst long-acting formaldehyde-removing curtain fabric of the present application is prepared by adopting the preparation process of the cold catalyst long-acting formaldehyde-removing curtain fabric mentioned above.
[0036] The applicant has designed the technical solution of the present application in view of the problems that the existing formaldehyde-removing curtains are prone to secondary pollution and highly dependent on light sources.
[0037] The raw materials used in this application are as follows: Titanium dioxide: CAS: 13463-67-7.
[0038] Magnesium oxide: CAS: 1309-48-4.
[0039] Bismuth aluminate: CAS: 12284-76-3.
[0040] Nonylphenol polyoxyethylene ether: CAS: 127087-87-0.
[0041] Sodium lauryl sulfate: CAS: 151-21-3.
[0042] Polyvinylpyrrolidone: CAS: 9003-39-8.
[0043] γ-Aminopropyltriethoxysilane: CAS: 919-30-2.
[0044] Hydroxypropyl methylcellulose: CAS: 9004-65-3.
[0045] Methyl acrylate: CAS: 96-33-3.
[0046] Azobisisobutyronitrile: CAS: 78-67-1.
[0047] Ethylene glycol diglycidyl ether: CAS: 2224-15-9. Specific embodiments
[0048] The preparation method of the hydroxypropyl methylcellulose modified polyacrylate used in Examples 1 to 3 is as follows: dissolving hydroxypropyl methylcellulose in ethanol to prepare a cellulose solution; uniformly mixing methyl acrylate, azobisisobutyronitrile, and ethylene glycol diglycidyl ether to prepare a polyacrylate prepolymer; mixing the cellulose solution with the polyacrylate prepolymer to generate hydroxypropyl methylcellulose modified polyacrylate, wherein the weight ratio of hydroxypropyl methylcellulose to methyl acrylate is 1:4.
[0049] Examples 1 to 3 Example 1 This embodiment provides a preparation process of a cold catalyst long-term formaldehyde removal curtain fabric, comprising the following steps: S1. Pretreatment of curtain fabric substrate: clean the curtain fabric substrate, remove surface impurities, and then dry it; the curtain fabric substrate is polyester fiber; S2, preparing cold catalyst solution; S3, applying the cold catalyst solution on the surface of the curtain fabric by spraying, with a coating thickness of 75 μm and a coating environment temperature of 25°C; S4. Dry the coated curtain fabric at a temperature of 65° C. for 45 minutes, heat and cure at a temperature of 90° C. for 22 minutes, arrange and shape, and obtain a cold catalyst long-term formaldehyde-removing curtain fabric.
[0050] The cold catalyst solution includes 20 parts of titanium dioxide, 5 parts of magnesium oxide, 10 parts of bismuth aluminate, 1 part of surfactant, 8 parts of binder, 1 part of hydroxypropyl methylcellulose modified polyacrylate, and 40 parts of solvent; the surfactant is nonylphenol polyoxyethylene ether, the binder is polyvinyl pyrrolidone, and the solvent is water.
[0051] The preparation method of cold catalyst solution is: Step 1: stirring and mixing a surfactant, a binder, hydroxypropyl methylcellulose modified polyacrylate and a solvent to prepare a premixed solution; Step 2: adding titanium dioxide, magnesium oxide and bismuth aluminate to the premixed solution, stirring and mixing to obtain a mixed solution; Step 3: Adjust the pH value of the mixed solution to 7, filter, and allow to stand to obtain a cold catalyst solution.
[0052] Example 2 This embodiment provides a preparation process of a cold catalyst long-term formaldehyde removal curtain fabric, comprising the following steps: S1. Pretreatment of curtain fabric substrate: clean the curtain fabric substrate, remove surface impurities, and then dry it; the curtain fabric substrate is polyester fiber; S2, preparing cold catalyst solution; S3, applying the cold catalyst solution on the surface of the curtain fabric by spraying, with a coating thickness of 75 μm and a coating environment temperature of 25°C; S4. Dry the coated curtain fabric at a temperature of 65° C. for 45 minutes, heat and cure at a temperature of 90° C. for 22 minutes, arrange and shape, and obtain a cold catalyst long-term formaldehyde-removing curtain fabric.
[0053] Among them, the cold catalyst solution includes 15 parts of titanium dioxide, 8 parts of magnesium oxide, 8 parts of bismuth aluminate, 3 parts of surfactant, 5 parts of binder, 3 parts of hydroxypropyl methylcellulose modified polyacrylate, and 60 parts of solvent; the surfactant is nonylphenol polyoxyethylene ether, the binder is polyvinyl pyrrolidone, and the solvent is water.
[0054] The preparation method of cold catalyst solution is: Step 1: stirring and mixing a surfactant, a binder, hydroxypropyl methylcellulose modified polyacrylate and a solvent to prepare a premixed solution; Step 2: adding titanium dioxide, magnesium oxide and bismuth aluminate to the premixed solution, stirring and mixing to obtain a mixed solution; Step 3: Adjust the pH value of the mixed solution to 7, filter, and allow to stand to obtain a cold catalyst solution.
[0055] Example 3 This embodiment provides a preparation process of a cold catalyst long-term formaldehyde removal curtain fabric, comprising the following steps: S1. Pretreatment of curtain fabric substrate: clean the curtain fabric substrate, remove surface impurities, and then dry it; the curtain fabric substrate is polyester fiber; S2, preparing cold catalyst solution; S3, applying the cold catalyst solution on the surface of the curtain fabric by spraying, with a coating thickness of 75 μm and a coating environment temperature of 25°C; S4. Dry the coated curtain fabric at a temperature of 65° C. for 45 minutes, heat and cure at a temperature of 90° C. for 22 minutes, arrange and shape, and obtain a cold catalyst long-term formaldehyde-removing curtain fabric.
[0056] Among them, the cold catalyst solution includes 10 parts of titanium dioxide, 10 parts of magnesium oxide, 5 parts of bismuth aluminate, 5 parts of surfactant, 2 parts of binder, 5 parts of hydroxypropyl methylcellulose modified polyacrylate, and 80 parts of solvent; the surfactant is nonylphenol polyoxyethylene ether, the binder is polyvinyl pyrrolidone, and the solvent is water.
[0057] The preparation method of cold catalyst solution is: Step 1: stirring and mixing a surfactant, a binder, hydroxypropyl methylcellulose modified polyacrylate and a solvent to prepare a premixed solution; Step 2: adding titanium dioxide, magnesium oxide and bismuth aluminate to the premixed solution, stirring and mixing to obtain a mixed solution; Step 3: Adjust the pH value of the mixed solution to 7, filter, and allow to stand to obtain a cold catalyst solution.
[0058] Comparative Examples 1 to 4 Comparative Example 1 The difference between Comparative Example 1 and Example 2 is that magnesium oxide and bismuth aluminate are not added to the cold catalyst solution of Comparative Example 1.
[0059] Comparative Example 2 The difference between Comparative Example 2 and Example 2 is that magnesium oxide is not added to the cold catalyst solution of Comparative Example 2.
[0060] Comparative Example 3 The difference between Comparative Example 3 and Example 2 is that bismuth aluminate is not added to the cold catalyst solution of Comparative Example 3.
[0061] Comparative Example 4 The difference between Comparative Example 4 and Example 2 is that in the cold catalyst solution of Comparative Example 4, hydroxypropyl methylcellulose modified polyacrylate is not added.
[0062] Experimental testing Test items and test methods Light test: Place a 30cm×30cm cold catalyst long-term formaldehyde removal curtain fabric sample in two containers under light conditions (ultraviolet light source) and completely without light conditions, and introduce 10g / m 3 The formaldehyde concentration in the container was tested at 25°C for 6 hours to calculate the formaldehyde removal rate. The control group did not put in the cold catalyst long-term formaldehyde removal curtain cloth sample. Each experiment was repeated three times and the average value was taken.
[0063] Long-term test: Place a 30cm×30cm cold catalyst long-term formaldehyde removal curtain fabric sample in a container without any light, and add 2g / m 3 After 3 months, add 2g / m 3 The concentration of formaldehyde gas was measured and the formaldehyde concentration in the container was detected. After 6 hours, the formaldehyde concentration in the container was detected again and the formaldehyde removal rate was calculated. Each experiment was repeated three times and the average value was taken.
[0064] The cold catalyst long-term formaldehyde removal curtain fabrics prepared in Examples 1 to 3 and Comparative Examples 1 to 4 were subjected to a light test and a long-term test. The test results are shown in Table 1.
[0065] Table 1 From the test results in Table 1, it can be seen that the formaldehyde removal rate of the cold catalyst long-term formaldehyde removal curtain cloth prepared in Examples 1 to 3 under completely dark conditions is similar to that under light conditions, and the long-term test results are good, indicating that the cold catalyst long-term formaldehyde removal curtain cloth prepared in the present application is independent of light sources, has excellent formaldehyde removal ability under dark conditions, and can maintain catalytic activity for a long time, and continuously and effectively decompose formaldehyde.
[0066] The formaldehyde removal rate and long-term effectiveness of the cold catalyst long-term formaldehyde removal curtain fabrics prepared in Comparative Examples 1 to 3 are significantly reduced under no-light conditions.
[0067] In Comparative Example 4, hydroxypropyl methylcellulose-modified polyacrylate was not added, and the formaldehyde removal rate of the obtained cold catalyst long-term formaldehyde removal curtain fabric was reduced, and the long-term effect was significantly reduced.
[0068] Embodiments 4 to 13 Example 4 The difference between Example 4 and Example 2 is that in step S3 of Example 4, the coating thickness is 50 μm.
[0069] Example 5 The difference between Example 5 and Example 2 is that in step S3 of Example 5, the coating thickness is 100 μm.
[0070] Example 6 The difference between Example 6 and Example 2 is that in step S4 of Example 6, the drying temperature is 60° C. and the drying time is 60 min.
[0071] Example 7 The difference between Example 7 and Example 2 is that in step S4 of Example 7, the drying temperature is 70° C. and the drying time is 30 min.
[0072] Example 8 The difference between Example 8 and Example 2 is that in step S4 of Example 8, the curing temperature is 80° C. and the curing time is 30 min.
[0073] Example 9 The difference between Example 9 and Example 2 is that in step S4 of Example 9, the curing temperature is 100° C. and the curing time is 15 min.
[0074] Example 10 The difference between Example 10 and Example 2 is that in the cold catalyst solution of Example 10, the surfactant is sodium lauryl sulfate.
[0075] Embodiment 11 The difference between Example 11 and Example 2 is that in the cold catalyst solution of Example 11, the binder is γ-aminopropyltriethoxysilane.
[0076] Example 12 The difference between Example 12 and Example 2 is that in the hydroxypropyl methylcellulose-modified polyacrylate of Example 12, the weight ratio of hydroxypropyl methylcellulose to methyl acrylate is 1:3.
[0077] Embodiment 13 The difference between Example 13 and Example 2 is that in the hydroxypropyl methylcellulose-modified polyacrylate of Example 13, the weight ratio of hydroxypropyl methylcellulose to methyl acrylate is 1:5.
[0078] The cold catalyst long-term formaldehyde removal curtain fabrics prepared in Examples 4 to 13 were subjected to illumination test and long-term test, and the test results are shown in Table 2.
[0079] Table 2 From the test results in Table 2, it can be seen that the difference between Example 4 and Example 5 and Example 2 is that the coating thickness of the cold catalyst solution is different, among which the cold catalyst long-term formaldehyde removal curtain fabric prepared in Example 2 has the best formaldehyde removal rate and long-term effectiveness.
[0080] The difference between Example 6 and Example 7 and Example 2 is that the drying conditions in step S4 are different, and the cold catalyst long-term formaldehyde removal curtain fabric prepared in Example 2 has the best formaldehyde removal rate and long-term effectiveness.
[0081] The difference between Example 8 and Example 9 and Example 2 is that the curing conditions in step S4 are different, and the cold catalyst long-term formaldehyde removal curtain fabric prepared in Example 2 has the best formaldehyde removal rate and long-term effectiveness.
[0082] The formaldehyde removal rate and long-term effectiveness of the cold catalyst long-term formaldehyde removal curtain fabrics prepared in Examples 10 and 11 are similar to those in Example 2.
[0083] The difference between Example 12 and Example 13 and Example 2 is that the weight ratio of hydroxypropyl methylcellulose to methyl acrylate in the hydroxypropyl methylcellulose modified polyacrylate is different, and the formaldehyde removal rate and long-term effectiveness of the cold catalyst long-term formaldehyde removal curtain fabric prepared in Example 2 are better.
[0084] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A preparation process for a cold catalyst long-term formaldehyde removal curtain fabric, characterized in that: The following steps are involved: S1. Pretreatment of curtain fabric substrate; S2, preparing cold catalyst solution; S3, applying the cold catalyst solution on the surface of the curtain fabric; S4, drying the coated curtain fabric, heating and curing, arranging, and shaping to obtain a cold catalyst long-term formaldehyde removal curtain fabric; The cold catalyst solution comprises 10-20 parts of titanium dioxide, 5-10 parts of magnesium oxide, 5-10 parts of bismuth aluminate, 1-5 parts of surfactant, 2-8 parts of binder, 1-5 parts of hydroxypropyl methylcellulose modified polyacrylate, and 40-80 parts of solvent; The preparation method of the cold catalyst solution is: Step 1: stirring and mixing the surfactant, the binder, the hydroxypropyl methylcellulose modified polyacrylate and the solvent to prepare a premixed solution; Step 2: adding the titanium dioxide, magnesium oxide and bismuth aluminate into the premixed solution, stirring and mixing to obtain a mixed solution; Step 3: adjusting the pH value of the mixed solution to 6-8, filtering, and standing to obtain the cold catalyst solution.
2. The preparation process of a cold catalyst long-term formaldehyde removal curtain fabric according to claim 1, characterized in that: In the step S1, the curtain fabric substrate is selected from one of cotton, linen and polyester fibers.
3. The preparation process of a cold catalyst long-term formaldehyde removal curtain fabric according to claim 1, characterized in that: In the step S1, the curtain fabric substrate pretreatment includes cleaning the curtain fabric substrate, removing surface impurities, and then performing a drying process.
4. The preparation process of a cold catalyst long-term formaldehyde removal curtain fabric according to claim 1, characterized in that: In the step S3, the coating method is spraying, the coating thickness is 50-100 μm, and the coating environment temperature is 15-30° C.
5. The preparation process of a cold catalyst long-term formaldehyde removal curtain fabric according to claim 1, characterized in that: In step S4, the drying temperature is 60-70° C., and the drying time is 30-60 min.
6. The preparation process of a cold catalyst long-term formaldehyde removal curtain fabric according to claim 1, characterized in that: In step S4, the curing temperature is 80-100° C. and the curing time is 15-30 min.
7. The preparation process of a cold catalyst long-term formaldehyde removal curtain fabric according to claim 1, characterized in that: The surfactant is selected from at least one of nonylphenol polyoxyethylene ether, sodium dodecyl sulfate and sodium lauryl sulfate.
8. The preparation process of a cold catalyst long-term formaldehyde removal curtain fabric according to claim 1, characterized in that: The binder is selected from at least one of polyvinyl alcohol, polyvinyl pyrrolidone and γ-aminopropyltriethoxysilane.
9. The preparation process of a cold catalyst long-term formaldehyde removal curtain fabric according to claim 1, characterized in that: The hydroxypropyl methylcellulose modified polyacrylate is prepared from hydroxypropyl methylcellulose and methyl acrylate, and the weight ratio of the hydroxypropyl methylcellulose to methyl acrylate is 1:3-5.
10. A cold catalyst long-term formaldehyde removal curtain fabric, characterized in that: The curtain fabric is prepared by the preparation process of a cold catalyst long-term formaldehyde removal curtain fabric as described in any one of claims 1 to 9.