A kind of organic silicon softening finishing agent and preparation method thereof

Abstract

The present invention relates to the technical field of fabric finishing agents, and specifically discloses a kind of organosilicon softening finishing agent, and its raw materials include by mass: amino silicone oil 20-30, acetic acid 1-2, nano titanium oxide 1-2, 3-acryloxypropylmethyldimethoxysilane 1-2, dimethylaminoethyl methacrylate 1-3, initiator 0.01-0.1, chitosan 0.1-1, tea polyphenols 0.1-1, hyaluronic acid 1-2, sodium tripolyphosphate 0.5-1.6, polyvinyl alcohol 5-15, carboxymethyl cellulose 1-2, emulsifier 3-6, plant extract 1-5, anhydrous ethanol 5-10, water 20-40. The present invention discloses a preparation method of the above-mentioned organosilicon softening finishing agent. The present invention can not only significantly reduce the amount of amino silicone oil added, but also has good hydrophilicity, is more washable, has good softening effect, and has good smoothness, and the preparation method is simple and easy, and the raw materials are easy to obtain and the price is low.

Description

Technical Field

[0001] The invention relates to the technical field of fabric finishing agents, and in particular to an organosilicon softening finishing agent and a preparation method thereof. Background Art

[0002] Textile auxiliaries, as chemicals used in the production and processing of textiles, can give textiles a variety of properties and play a vital role in improving the overall level of the textile industry. Softeners are a class of chemicals that can change the static and dynamic friction coefficients of fibers. The combined feeling of the two is softness, and the quality of its performance directly determines the softness of the fabric and the comfort of wearing.

[0003] Organic silicon softening agent is an important finishing agent in the process of fabric treatment. It can significantly improve the feel of fabric, making it smooth and soft. At present, people hope to give organic silicon softening agent more functions. In addition to the conventional feel improvement, it is also hoped that it can maintain the hydrophilicity of the fiber and work stably under complex printing and dyeing conditions.

[0004] Currently, the most common softening finishing agent is amino silicone oil softener, which enables siloxane to adhere to the surface of the fabric in a direction, producing an excellent hand feel. However, amino silicone oil does not have the property of self-dispersion. After being formulated into amino silicone oil emulsion, it is easy to cause oil floating or roller sticking during storage and use. The hydrophilicity of the fabric decreases after treatment, which affects its wearing comfort. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an organosilicon softening finishing agent and a preparation method thereof.

[0006] A silicone softening finishing agent, the raw materials of which include, by weight: 20-30 parts of amino silicone oil, 1-2 parts of acetic acid, 1-2 parts of nano titanium oxide, 1-2 parts of 3-acryloxypropylmethyldimethoxysilane, 1-3 parts of dimethylaminoethyl methacrylate, 0.01-0.1 parts of initiator, 0.1-1 parts of chitosan, 0.1-1 parts of tea polyphenols, 1-2 parts of hyaluronic acid, 0.5-1.6 parts of sodium tripolyphosphate, 5-15 parts of polyvinyl alcohol, 1-2 parts of carboxymethyl cellulose, 3-6 parts of emulsifier, 1-5 parts of plant extract, 5-10 parts of anhydrous ethanol and 20-40 parts of water.

[0007] Preferably, the amino value of the amino silicone oil is 0.4±0.1.

[0008] Preferably, the initiator is benzoyl peroxide or dicumyl peroxide.

[0009] Preferably, the emulsifier is at least one of castor oil polyoxyethylene ether, polyoxyethylene sorbitan fatty acid ester, and sorbitan fatty acid ester.

[0010] Preferably, the plant extracts include: peppermint water extract, lavender water extract and honeysuckle water extract.

[0011] Preferably, the mass ratio of the peppermint water extract, the lavender water extract and the honeysuckle water extract is 3-5:4-8:6-12.

[0012] The preparation method of the above-mentioned organosilicon softening finishing agent comprises the following steps:

[0013] S1. Add 3-acryloxypropylmethyldimethoxysilane, dimethylaminoethyl methacrylate and initiator to the solvent, purge with nitrogen for 10-20 minutes, stir at 80-90°C for 2-6 hours, precipitate with n-hexane, dry, add anhydrous ethanol and stir for 1-5 minutes, add amino silicone oil, emulsifier, acetic acid and nano titanium oxide and stir for 10-30 minutes to obtain a premix. a ;

[0014] S2. Dissolve chitosan in acetic acid solution and stir evenly, add tea polyphenols, hyaluronic acid and emulsifier, adjust the temperature to 30-40°C and stir for 20-30 minutes, add dropwise to sodium tripolyphosphate solution, let stand for 5-10 hours, filter and freeze-dry; then add polyvinyl alcohol, carboxymethyl cellulose and emulsifier, stir at 30-40°C for 5-15 minutes, and add to premix. a The premix was treated with ultrasound for 1-2h. b ;

[0015] S3, to premix b Add plant extract and water and mix well.

[0016] Preferably, in S1, the solvent is xylene.

[0017] Preferably, in S2, the mass fraction of the acetic acid solution is 0.5-1.2%, and the mass fraction of the sodium tripolyphosphate solution is 1-1.6%.

[0018] Preferably, in S2, the ultrasonic frequency is 5-10 kHz, and the ultrasonic temperature is 30-40°C. Beneficial Effects

[0019] The invention dissolves chitosan in an acetic acid solution, and then mixes it with tea polyphenols and hyaluronic acid, so that the mutual affinity is high, the coating effect is excellent after solidification, and the stability is high; then, it is compounded with polyvinyl alcohol and carboxymethyl cellulose, so that the mutual dispersion uniformity is high and the hydrophilicity is good. The tea polyphenols and hyaluronic acid therein can be continuously and sustainedly released, and while ensuring the hydrophilicity, the artificial fiber can also have a good softness and fluffy effect, and the performance is excellent.

[0020] 3-Acryloxypropylmethyldimethoxysilane and dimethylaminoethyl methacrylate are polymerized by initiation, and the 3-acryloxypropylmethyldimethoxysilane contains a flexible siloxane segment, which not only has good affinity with amino silicone oil, but also can be self-assembled on the surface of artificial fibers, achieving a friction-reducing and self-lubricating effect, and its hydrophilic structure has good affinity with composite microspheres, and can be firmly bonded to the surface of the fabric. At the same time, the system has good emulsification ability, avoiding oil floating or roller sticking. The textile fabric treated with the finishing agent obtained by the present invention has good softness and smoothness, and a small amount of the fabric can obtain good softness, and the impact on the environment is small.

[0021] The invention can not only significantly reduce the amount of amino silicone oil added, but also has the characteristics of good hydrophilicity, is more firmly combined with fabrics, is more washable, has good softening effect, good smoothness, and good antistatic property. At the same time, the preparation method is simple and easy, the raw materials are easily available, the price is low, and it is suitable for industrial production. DETAILED DESCRIPTION

[0022] The present invention will be further explained below in conjunction with specific embodiments. Example 1

[0023] A silicone softening finishing agent, the raw materials of which include: 20kg of amino silicone oil with an amine value of 0.4±0.1, 1kg of acetic acid, 1kg of nano titanium oxide, 1kg of 3-acryloxypropylmethyldimethoxysilane, 1kg of dimethylaminoethyl methacrylate, 0.01kg of diisopropylbenzene peroxide, 0.1kg of chitosan, 0.1kg of tea polyphenols, 1kg of hyaluronic acid, 0.5kg of sodium tripolyphosphate, 5kg of polyvinyl alcohol, 1kg of carboxymethyl cellulose, 3kg of Tween 80, 1kg of plant extract, 5kg of anhydrous ethanol and 20kg of water.

[0024] The plant extract is obtained by mixing peppermint water extract, lavender water extract and honeysuckle water extract in a mass ratio of 3:4:6.

[0025] The preparation method of the above-mentioned organosilicon softening finishing agent comprises the following steps:

[0026] S1. Add 3-acryloxypropylmethyldimethoxysilane, dimethylaminoethyl methacrylate and diisopropylbenzene peroxide to 20 kg of xylene, purge with nitrogen for 10 min, stir at 80 °C for 2 h, precipitate with n-hexane, dry, add anhydrous ethanol and mix, stir at 1000 r / min for 1 min, add amino silicone oil, 1 kg of Tween 80, acetic acid and nano titanium oxide, stir at 1000 r / min for 10 min to obtain a premix. a ;

[0027] S2. Dissolve chitosan in 10 kg of 0.5% acetic acid solution and stir evenly, add tea polyphenols, hyaluronic acid and 1 kg of Tween 80, stir at 30 °C at 100 r / min for 20 min, add dropwise to 50 kg of 1% sodium tripolyphosphate solution, let stand for 5 h, filter and freeze-dry; then add polyvinyl alcohol, carboxymethyl cellulose and 1 kg of Tween 80, mix, stir at 1000 r / min for 5 min, stir at 30 °C, and add to the premix. a The premix was treated with ultrasound for 1 h at a frequency of 5 kHz and a temperature of 30 °C. b ;

[0028] S3, to premix b Add plant extract and water, and stir at 100 r / min for 1 h. Example 2

[0029] A silicone softening finishing agent, the raw materials of which include: 30kg of amino silicone oil with an amine value of 0.4±0.1, 2kg of acetic acid, 2kg of nano titanium oxide, 2kg of 3-acryloxypropylmethyldimethoxysilane, 3kg of dimethylaminoethyl methacrylate, 0.1kg of dicumyl peroxide, 1kg of chitosan, 1kg of tea polyphenols, 2kg of hyaluronic acid, 1.6kg of sodium tripolyphosphate, 15kg of polyvinyl alcohol, 2kg of carboxymethyl cellulose, 6kg of Tween 60, 5kg of plant extract, 10kg of anhydrous ethanol and 40kg of water.

[0030] The plant extract is obtained by mixing peppermint water extract, lavender water extract and honeysuckle water extract in a mass ratio of 5:8:12.

[0031] The preparation method of the above-mentioned organosilicon softening finishing agent comprises the following steps:

[0032] S1. Add 3-acryloxypropylmethyldimethoxysilane, dimethylaminoethyl methacrylate and diisopropylbenzene peroxide to 40 kg of xylene, purge with nitrogen for 20 min, stir at 90 °C for 6 h, precipitate with n-hexane, dry, add anhydrous ethanol and mix, stir at 2000 r / min for 5 min, add amino silicone oil, 2 kg of Tween 60, acetic acid and nano titanium oxide, stir at 2000 r / min for 30 min to obtain a premix. a ;

[0033] S2. Dissolve chitosan in 15kg of 1.2% acetic acid solution and stir evenly, add tea polyphenols, hyaluronic acid and 2kg Tween 60, stir at 40°C at 200r / min for 30min, add dropwise to 100kg of 1.6% sodium tripolyphosphate solution, let stand for 10h, filter and freeze-dry; then add polyvinyl alcohol, carboxymethyl cellulose and 2kg Tween 60, mix, stir at 2000r / min for 15min, stirring temperature is 40°C, add to premix a The premix was treated with ultrasound for 2 h at a frequency of 10 kHz and a temperature of 40 °C. b ;

[0034] S3, to premix b Add plant extract and water, and stir at 500r / min for 2h. Example 3

[0035] A silicone softening finishing agent, the raw materials of which include: 22kg of amino silicone oil with an amine value of 0.4±0.1, 1.7kg of acetic acid, 1.2kg of nano titanium oxide, 1.7kg of 3-acryloxypropylmethyldimethoxysilane, 1.5kg of dimethylaminoethyl methacrylate, 0.07kg of benzoyl peroxide, 0.2kg of chitosan, 0.7kg of tea polyphenols, 1.2kg of hyaluronic acid, 0.84kg of sodium tripolyphosphate, 12kg of polyvinyl alcohol, 1.3kg of carboxymethyl cellulose, 4.6kg of Span 60, 4kg of plant extract, 7kg of anhydrous ethanol and 35kg of water.

[0036] The plant extract is obtained by mixing peppermint water extract, lavender water extract and honeysuckle water extract in a mass ratio of 3.5:7:8.

[0037] The preparation method of the above-mentioned organosilicon softening finishing agent comprises the following steps:

[0038] S1. Add 3-acryloxypropylmethyldimethoxysilane, dimethylaminoethyl methacrylate, and benzoyl peroxide to 35 kg of xylene, purge with nitrogen for 12 minutes, stir at 88°C for 3 hours, precipitate with n-hexane, dry, add anhydrous ethanol and mix, stir at 1800 r / min for 2 minutes, add amino silicone oil, 1.7 kg of Span 60, acetic acid, and nano titanium oxide, stir at 1200 r / min for 25 minutes to obtain a premix. a ;

[0039] S2. Dissolve chitosan in 11kg of 1% acetic acid solution and stir evenly, add tea polyphenols, hyaluronic acid, and 1.2kg Span 60, stir at 37°C at 120r / min for 28min, add dropwise to 60kg of 1.4% sodium tripolyphosphate solution, let stand for 6h, filter, and freeze-dry; then add polyvinyl alcohol, carboxymethyl cellulose, and 1.7kg Span 60, mix, stir at 1300r / min for 12min, and stir at 33°C, and add to the premix. a The premix was treated by ultrasound for 100 min at a frequency of 7 kHz and a temperature of 37°C. b ;

[0040] S3, to premix b Add plant extract and water, and stir at 200r / min for 100min. Example 4

[0041] A silicone softening finishing agent, the raw materials of which include: 28kg of amino silicone oil with an amino value of 0.4±0.1, 1.3kg of acetic acid, 1.8kg of nano titanium oxide, 1.3kg of 3-acryloxypropylmethyldimethoxysilane, 2.5kg of dimethylaminoethyl methacrylate, 0.03kg of benzoyl peroxide, 0.8kg of chitosan, 0.3kg of tea polyphenols, 1.8kg of hyaluronic acid, 0.96kg of sodium tripolyphosphate, 8kg of polyvinyl alcohol, 1.7kg of carboxymethyl cellulose, 4.4kg of Span 80, 2kg of plant extract, 9kg of anhydrous ethanol and 25kg of water.

[0042] The plant extract is obtained by mixing peppermint water extract, lavender water extract and honeysuckle water extract in a mass ratio of 4.5:5:10.

[0043] The preparation method of the above-mentioned organosilicon softening finishing agent comprises the following steps:

[0044] S1. Add 3-acryloxypropylmethyldimethoxysilane, dimethylaminoethyl methacrylate and benzoyl peroxide to 25 kg of xylene, purge with nitrogen for 18 min, stir at 82 °C for 5 h, precipitate with n-hexane, dry, add anhydrous ethanol and mix, stir at 1200 r / min for 4 min, add amino silicone oil, 1.3 kg of Span 80, acetic acid and nano titanium oxide, stir at 1800 r / min for 15 min to obtain a premix. a ;

[0045] S2. Dissolve chitosan in 13kg of 0.6% acetic acid solution and stir evenly, add tea polyphenols, hyaluronic acid and 1.8kg Span 80, stir at 33°C at 180r / min for 22min, add dropwise to 80kg of 1.2% sodium tripolyphosphate solution, let stand for 8h, filter and freeze-dry; then add polyvinyl alcohol, carboxymethyl cellulose and 1.3kg Span 80, mix, stir at 1700r / min for 8min, stir at 37°C, and add to the premix. a The premix was treated with ultrasound for 80 min at a frequency of 9 kHz and a temperature of 33°C. b ;

[0046] S3, to premix b Add plant extract and water, and stir at 400r / min for 80min. Example 5

[0047] A silicone softening finishing agent, the raw materials of which include: 25kg of amino silicone oil with an amino value of 0.4±0.1, 1.5kg of acetic acid, 1.5kg of nano titanium oxide, 1.5kg of 3-acryloxypropylmethyldimethoxysilane, 2kg of dimethylaminoethyl methacrylate, 0.05kg of benzoyl peroxide, 0.5kg of chitosan, 0.5kg of tea polyphenols, 1.5kg of hyaluronic acid, 0.91kg of sodium tripolyphosphate, 10kg of polyvinyl alcohol, 1.5kg of carboxymethyl cellulose, 4.5kg of castor oil polyoxyethylene ether, 3kg of plant extract, 8kg of anhydrous ethanol and 30kg of water.

[0048] The plant extract is obtained by mixing peppermint water extract, lavender water extract and honeysuckle water extract in a mass ratio of 4:6:9.

[0049] The preparation method of the above-mentioned organosilicon softening finishing agent comprises the following steps:

[0050] S1. Add 3-acryloxypropylmethyldimethoxysilane, dimethylaminoethyl methacrylate, and benzoyl peroxide to 30 kg of xylene, purge with nitrogen for 15 minutes, stir at 85°C for 4 hours, precipitate with n-hexane, dry, add anhydrous ethanol and mix, stir at 1500 r / min for 3 minutes, add amino silicone oil, 1.5 kg of castor oil polyoxyethylene ether, acetic acid, and nano titanium oxide, stir at 1500 r / min for 20 minutes to obtain a premix. a ;

[0051] S2. Dissolve chitosan in 12kg of 0.8% acetic acid solution and stir evenly, add tea polyphenols, hyaluronic acid, and 1.5kg of castor oil polyoxyethylene ether, stir at 35°C at a speed of 150r / min for 25min, add dropwise to 70kg of 1.3% sodium tripolyphosphate solution, let stand for 7h, filter, and freeze-dry; then add polyvinyl alcohol, carboxymethyl cellulose, and 1.5kg of castor oil polyoxyethylene ether, mix, stir at a speed of 1500r / min for 10min, and the stirring temperature is 35°C, and add to the premix. a The premix was treated with ultrasound for 90 min at a frequency of 8 kHz and a temperature of 35 °C. b ;

[0052] S3, to premix b Add plant extract and water, and stir at 300r / min for 90min.

[0053] Comparative Example 1

[0054] A silicone softening finishing agent, the raw materials of which include: 25kg of amino silicone oil with an amine value of 0.4±0.1, 1.5kg of acetic acid, 1.5kg of nano titanium oxide, 1.5kg of 3-acryloxypropylmethyldimethoxysilane, 0.5kg of chitosan, 0.5kg of tea polyphenols, 1.5kg of hyaluronic acid, 0.91kg of sodium tripolyphosphate, 10kg of polyvinyl alcohol, 1.5kg of carboxymethyl cellulose, 4.5kg of castor oil polyoxyethylene ether, 3kg of plant extract, 8kg of anhydrous ethanol and 30kg of water.

[0055] The plant extract is obtained by mixing peppermint water extract, lavender water extract and honeysuckle water extract in a mass ratio of 4:6:9.

[0056] The preparation method of the above-mentioned organosilicon softening finishing agent comprises the following steps:

[0057] S1. Add 3-acryloxypropylmethyldimethoxysilane to anhydrous ethanol and stir at a speed of 1500 r / min for 3 min. Add amino silicone oil, 1.5 kg castor oil polyoxyethylene ether, acetic acid, and nano titanium oxide and stir at a speed of 1500 r / min for 20 min to obtain a premix. a ;

[0058] S2. Dissolve chitosan in 12kg of 0.8% acetic acid solution and stir evenly, add tea polyphenols, hyaluronic acid, and 1.5kg of castor oil polyoxyethylene ether, stir at 35°C at a speed of 150r / min for 25min, add dropwise to 70kg of 1.3% sodium tripolyphosphate solution, let stand for 7h, filter, and freeze-dry; then add polyvinyl alcohol, carboxymethyl cellulose, and 1.5kg of castor oil polyoxyethylene ether, mix, stir at a speed of 1500r / min for 10min, and the stirring temperature is 35°C, and add to the premix. a The premix was treated with ultrasound for 90 min at a frequency of 8 kHz and a temperature of 35 °C. b ;

[0059] S3, to premix b Add plant extract and water, and stir at 300r / min for 90min.

[0060] Comparative Example 2

[0061] A silicone softening finishing agent, the raw materials of which include: 25kg of amino silicone oil with an amine value of 0.4±0.1, 1.5kg of acetic acid, 1.5kg of nano titanium oxide, 1.5kg of 3-acryloxypropylmethyldimethoxysilane, 2kg of dimethylaminoethyl methacrylate, 0.05kg of benzoyl peroxide, 0.5kg of tea polyphenols, 1.5kg of hyaluronic acid, 10kg of polyvinyl alcohol, 1.5kg of carboxymethyl cellulose, 3kg of castor oil polyoxyethylene ether, 3kg of plant extract, 8kg of anhydrous ethanol and 30kg of water.

[0062] The plant extract is obtained by mixing peppermint water extract, lavender water extract and honeysuckle water extract in a mass ratio of 4:6:9.

[0063] The preparation method of the above-mentioned organosilicon softening finishing agent comprises the following steps:

[0064] S1. Add 3-acryloxypropylmethyldimethoxysilane, dimethylaminoethyl methacrylate, and benzoyl peroxide to 30 kg of xylene, purge with nitrogen for 15 minutes, stir at 85°C for 4 hours, precipitate with n-hexane, dry, add anhydrous ethanol and mix, stir at 1500 r / min for 3 minutes, add amino silicone oil, 1.5 kg of castor oil polyoxyethylene ether, acetic acid, and nano titanium oxide, stir at 1500 r / min for 20 minutes to obtain a premix. a ;

[0065] S2. Add tea polyphenols and hyaluronic acid to polyvinyl alcohol, carboxymethyl cellulose and 1.5 kg of castor oil polyoxyethylene ether, stir at a speed of 1500 r / min for 10 min at a stirring temperature of 35°C, and add to the premix.a The premix was treated with ultrasound for 90 min at a frequency of 8 kHz and a temperature of 35 °C. b ;

[0066] S3, to premix b Add plant extract and water, and stir at 300r / min for 90min.

[0067] The organic silicone softening finishing agent obtained in Example 5 and Comparative Examples 1-2 was used to finish the cotton woven fabric at an amount of 20 g / L. The specific operation was as follows: one dip and one roll (rolling rate: 70%) → shaping (160°C×60s) → moisture regain → performance evaluation.

[0068] 1. Softness test

[0069] The performance of fabrics treated with softeners is generally evaluated by hand feel, that is, by touching the fabric to feel its softness, smoothness, fullness and fluffiness. Although the factors affecting the hand feel are very complex, the actual hand feel can better reflect the wearing performance of the fabric and is still the most commonly used method to evaluate the softening effect. The hand feel is divided into 5 levels, and the higher the level, the better the hand feel.

[0070] 2. Hydrophilic performance test

[0071] Use a standard dropper (25 drops / mL) to drop a drop of water from a height of 3 cm from the fabric to the horizontally spread fabric surface, and measure the time taken for a drop of water to completely wet and diffuse on the fabric under static conditions. The shorter the time, the better the hydrophilicity.

[0072] The results are as follows:

[0073] Group Feel level (level) Hydrophilicity (seconds) Original cloth 1 5.13±0.76 Example 1 3.5 6.01±0.92 Example 2 4 5.95±0.88 Example 3 4 5.51±0.90 Example 4 4.5 5.47±0.83 Example 5 4.5 5.33±0.87 Comparative Example 1 2.5 9.00±1.23 Comparative Example 2 3 7.57±0.99

[0074] 3. Chemical stability test

[0075] The main tests are on the acid and alkali resistance, shear resistance and salt resistance of the fabric, as follows:

[0076] ;

[0077] The applicant believes that this is because the chitosan is dissolved in an acetic acid solution and then combined with tea polyphenols and hyaluronic acid, which have high mutual affinity, excellent coating effect and high stability after curing; and then compounded with polyvinyl alcohol and carboxymethyl cellulose, which have high mutual dispersion uniformity and good hydrophilicity. The tea polyphenols and hyaluronic acid therein can be continuously released, and while ensuring the hydrophilic property, the fiber can have a good softness and fluffy effect; and 3-acryloxypropylmethyldimethoxysilane and dimethylaminoethyl methacrylate are polymerized after initiation, and contain flexible siloxane segments, which not only have good affinity with amino silicone oil, but also can self-assemble to the surface of artificial fibers, achieving a friction-reducing and self-lubricating effect, and its hydrophilic structure has good affinity with the composite microspheres, which can be firmly bonded to the surface of the fabric, and the system has good emulsification ability, avoiding the phenomenon of oil floating or sticking to the roller.

[0078] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A silicone softening finishing agent, characterized in that: The raw materials include, by mass: 20-30 parts of amino silicone oil, 1-2 parts of acetic acid, 1-2 parts of nano titanium oxide, 1-2 parts of 3-acryloxypropylmethyldimethoxysilane, 1-3 parts of dimethylaminoethyl methacrylate, 0.01-0.1 parts of initiator, 0.1-1 parts of chitosan, 0.1-1 parts of tea polyphenols, 1-2 parts of hyaluronic acid, 0.5-1.6 parts of sodium tripolyphosphate, 5-15 parts of polyvinyl alcohol, 1-2 parts of carboxymethyl cellulose, 3-6 parts of emulsifier, 1-5 parts of plant extract, 5-10 parts of anhydrous ethanol, and 20-40 parts of water; Prepared by the following steps: S1. Add 3-acryloxypropylmethyldimethoxysilane, dimethylaminoethyl methacrylate and initiator to the solvent, purge with nitrogen for 10-20 minutes, stir at 80-90°C for 2-6 hours, precipitate with n-hexane, dry, add anhydrous ethanol and stir for 1-5 minutes, add amino silicone oil, emulsifier, acetic acid and nano titanium oxide and stir for 10-30 minutes to obtain a premix. a ; S2. Dissolve chitosan in acetic acid solution and stir evenly, add tea polyphenols, hyaluronic acid and emulsifier, adjust the temperature to 30-40°C and stir for 20-30 minutes, add dropwise to sodium tripolyphosphate solution, let stand for 5-10 hours, filter and freeze-dry; then add polyvinyl alcohol, carboxymethyl cellulose and emulsifier, stir at 30-40°C for 5-15 minutes, and add to premix. a The premix was treated with ultrasound for 1-2h. b ; S3, to premix b Add plant extract and water and mix well.

2. The organic silicon softening finishing agent according to claim 1, characterized in that: The ammonia value of amino silicone oil is 0.4±0.

1.

3. The organic silicon softening finishing agent according to claim 1, characterized in that: The initiator is benzoyl peroxide or dicumyl peroxide.

4. The organic silicon softening finishing agent according to claim 1, characterized in that: The emulsifier is at least one of castor oil polyoxyethylene ether, polyoxyethylene sorbitan fatty acid ester and sorbitan fatty acid ester.

5. The organosilicon softening finishing agent according to claim 1, characterized in that: Plant extracts include: peppermint water extract, lavender water extract and honeysuckle water extract.

6. The organosilicon softening finishing agent according to claim 5, characterized in that: The mass ratio of the peppermint water extract, the lavender water extract and the honeysuckle water extract is 3-5:4-8:6-12.

7. A method for preparing the organosilicon softening finishing agent according to any one of claims 1 to 6, characterized in that: The steps include: S1. Add 3-acryloxypropylmethyldimethoxysilane, dimethylaminoethyl methacrylate and initiator to the solvent, purge with nitrogen for 10-20 minutes, stir at 80-90°C for 2-6 hours, precipitate with n-hexane, dry, add anhydrous ethanol and stir for 1-5 minutes, add amino silicone oil, emulsifier, acetic acid and nano titanium oxide and stir for 10-30 minutes to obtain a premix. a ; S2. Dissolve chitosan in acetic acid solution and stir evenly, add tea polyphenols, hyaluronic acid and emulsifier, adjust the temperature to 30-40°C and stir for 20-30 minutes, add dropwise to sodium tripolyphosphate solution, let stand for 5-10 hours, filter and freeze-dry; then add polyvinyl alcohol, carboxymethyl cellulose and emulsifier, stir at 30-40°C for 5-15 minutes, and add to premix. a The premix was treated with ultrasound for 1-2h to obtain b ; S3, to premix b Add plant extract and water and mix well.

8. The method for preparing the organosilicon softening finishing agent according to claim 7, characterized in that: In S1, the solvent is xylene.

9. The method for preparing the organosilicon softening finishing agent according to claim 7, characterized in that: In S2, the mass fraction of the acetic acid solution is 0.5-1.2%, and the mass fraction of the sodium tripolyphosphate solution is 1-1.6%.

10. The method for preparing the organosilicon softening finishing agent according to claim 7, characterized in that: In S2, the ultrasonic frequency is 5-10 kHz and the ultrasonic temperature is 30-40°C.