Process for the preparation of a multifunctional softener for fabric after-treatment

Abstract

The application belongs to the technical field of textile auxiliaries, and particularly relates to a preparation method of a multifunctional softening agent, which comprises the following steps: S1: polyether epoxy silicone oil, amine and an organic solvent are added into a reaction kettle according to the measured amount, dry nitrogen is introduced, and after uniform stirring, the temperature is increased to 70-135 DEG C; after reaction, multifunctional aminosilane is added for continuous reaction to obtain raw organic silicon; S2: an emulsifier is added to the raw organic silicon obtained in S1 for emulsification, and finally a multifunctional softening agent is obtained. The softening agent prepared by the preparation method has excellent flexibility, crispness and excellent fluffy soft hand feeling after finishing of the cloth.

Description

A method for preparing a multifunctional softener for fabric finishing. Technical Field

[0001] This invention belongs to the field of textile auxiliaries technology, specifically relating to a method for preparing a multifunctional softener for fabric finishing. Background Technology

[0002] Organosilicon softeners are widely used as finishing agents for various textiles, imparting excellent fluffiness, softness, and smoothness. They can also, through structural adjustments, give fabrics special waterproof or hydrophilic properties. For men's shirts, suits, and women's skirts, the fabric generally needs to be soft, comfortable, and crisp with good flexibility, ensuring comfort and style while making the fabric appear more upscale. Chinese patents CN119265944A and CN111945433A disclose a softener for acrylic fibers, which can give acrylic fibers good fluffiness, softness, elasticity, and good crispness. Chinese patent CN110791959A discloses a wax-printing-like finishing agent for cotton reactive printing fabrics. Through the synergistic effect of its components, the finished fabric is crisp and structured, flexible and elastic, thick and fluffy, with a delicate and smooth surface, a strong cotton feel, and vibrant colors, possessing a unique appearance and feel. However, this product has the disadvantage of requiring a large amount and having a significant impact on the strength of the fabric. Therefore, there is an urgent need to develop a flexible, crisp, soft and comfortable softener suitable for finishing general-purpose fabrics. Summary of the Invention

[0003] The technical problem to be solved by this invention is a method for preparing a multifunctional softener for fabric finishing, which makes the fabric finished by the modified organosilicon emulsion produced by this technical solution have excellent flexibility and crispness and a superior fluffy, soft and comfortable hand feel, and the product has a wide range of fabric applications.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A method for preparing a multifunctional softener includes the following steps:

[0006] S1: Add polyether epoxy silicone oil, amine and organic solvent into the reaction vessel according to the measured amount, introduce dry nitrogen gas, stir evenly and heat to 70-135℃, add multifunctional aminosilane after reaction and continue reaction to obtain organosilicon crude oil.

[0007] S2: The silicone crude oil obtained in S1 is emulsified with an emulsifier to finally obtain a multifunctional softener.

[0008] Through the above technical solution, a ternary copolymer modified fiber softener with multiple reactive groups was obtained by polycondensation reaction of polyether epoxy silicone oil with amines and multifunctional aminosilanes. This ternary copolymer modified fiber softener with multiple reactive groups embeds polyoxyethylene ether and / or polyoxypropylene ether structures and multifunctional aminosilane structures into the silicone oil backbone. The polyoxyethylene ether structure can undergo melt eutectic with the polyester structure at high temperatures, thereby improving the bonding force with polyester and the orientation degree on the fiber surface; the polyoxypropylene ether can provide a rigid elastic structure, and the multifunctional aminosilane... The structure allows for better cross-linking with the hydroxyl groups of cotton fabrics or the carboxyl groups of synthetic fibers, thereby greatly enhancing the bonding strength and cross-linking performance of this organosilicon emulsion. After adding polyfunctional aminosilane, the amino groups can undergo condensation reactions with epoxy groups, increasing the number of hydrogen bonds or covalent bonds formed with the hydroxyl groups of natural fibers such as cotton or the carboxyl groups of synthetic fibers. Through multiple effects, the fabric treated with the softener produced by this technical solution is enhanced in terms of fluffiness, elasticity, and flexibility. When applied to cotton, polyester, and their blended fibers, it can give the fabric excellent flexibility, crispness, and superior fluffiness and softness.

[0009] Optionally, the amine is one or more of a diamine, a polyamine, or a small molecule amine.

[0010] Optionally, the diamine is a polyetheramine from the D, ED, and T series; the polyamine is diethylenetriamine, triethylenetetramine, or tetraethylenepentamine; and the small molecule amine is ethylenediamine, hexamethylenediamine, or tetramethylhexamethylenediamine.

[0011] Optionally, the molar ratio of the amine to the allyl polyether epoxy silicone oil is 0.7-1.8:1.

[0012] Optionally, the multifunctional aminosilane is one or more of aminopropyltrimethoxysilane, aminopropyltriethoxysilane, 3-(2-aminoethyl)-aminopropyltrimethoxysilane, N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane, bis-(3-trimethoxysilylpropyl)amine, and bis-(3-triethoxysilylpropyl)amine.

[0013] Optionally, the multifunctional aminosilane is aminopropyltriethoxysilane or bis-(3-triethoxysilylpropyl)amine.

[0014] Optionally, the molar ratio of the multifunctional aminosilane to the polyether epoxy silicone oil is 0.2-2.2:1.

[0015] Through the above technical solution, after adding multifunctional aminosilane, the amino group can undergo a polycondensation reaction with the epoxy group. The amino group increases the number of hydrogen bonds or covalent bonds formed with the hydroxyl groups of natural fibers such as cotton or the carboxyl groups of synthetic fibers, thereby increasing the fluffiness and flexibility of the fabric. The hydrolysis and polycondensation of the multifunctional groups increases the degree of crosslinking, which can increase the stiffness, elasticity and flexibility of the fabric.

[0016] Optionally, the emulsifier is one or more of fatty alcohol polyoxyethylene ether or isomeric alcohol polyoxyethylene ether.

[0017] Optionally, the emulsifier is a compound of one to four fatty alcohol polyoxyethylene ethers with different HLB values, wherein the fatty alcohol polyoxyethylene ether has an HLB value of 10-13 and is expressed by the following general formula:

[0018] RO-(CH2CH2O)nH, (R is C 10～18 (hydrocarbon group, n=3-25).

[0019] Optionally, the preparation method of the polyether epoxy silicone oil is as follows: Hydrogen-terminated silicone oil and allyl polyether epoxy and / or organic solvent are added to a reaction vessel, dry nitrogen gas is introduced, and after stirring evenly, the temperature is raised to 50-70℃. A catalyst solution is added, and then the temperature is further raised to 75-115℃ to react. After the reaction, a transparent polyether epoxy silicone oil is obtained. The reaction formula of the polyether epoxy silicone oil is as follows (m, p, and q are any numbers of 25≤m≤350, 5≤p≤45, 0≤q≤25):

[0020] .

[0021] Through the above technical solution, the polyether epoxy silicone oil prepared by the method of the present invention has no characteristic absorption peak of hydrogen silane when detected by infrared spectroscopy, indicating that the hydrogen silane addition rate of the preparation method exceeds 98%, which can meet the requirements of the polyether epoxy silicone oil required for the preparation of the softener of the present invention, so that the fabric's flexibility, stiffness, fluffiness and softness are all maintained at a relatively excellent level.

[0022] Optionally, the molar ratio of allyl polyether epoxy to hydrogen-terminated silicone oil is 1.9-2.2:1.

[0023] Optionally, the molecular weight of the terminal hydrogen silicone oil is 2000-25000, and the molecular weight of the allyl polyether epoxy is 300-2000.

[0024] Optionally, the catalyst is chloroplatinic acid or Castro platinum, and the amount of catalyst used is 6-20 ppm.

[0025] Optionally, the organic solvent is one or a combination of isopropanol, ethylene glycol monobutyl ether, or butanol.

[0026] Optionally, the allyl polyether epoxy structure contains polyoxyethylene polyether and / or polyoxypropylene ether groups.

[0027] Optionally, the allyl polyether epoxy is selected from allyl polyether epoxy containing polyoxyethylene polyether and polyoxypropylene ether with a molecular weight of 600 or 800.

[0028] Optionally, the reaction temperature of the preparation method of the polyether epoxy silicone oil is 75-95℃.

[0029] Optionally, the reaction time of the preparation method of the polyether epoxy silicone oil is 2-16 hours.

[0030] The beneficial effects of the preparation method described in this invention are mainly as follows:

[0031] 1. The ternary copolymer modified softener with multiple reactive groups of the present invention has polyoxyethylene ether and / or polyoxypropylene ether structure and aminosilane multifunctional group structure embedded in the main chain, which can give cotton, polyester and their blended fibers excellent flexibility and crispness, with a unique style, and is particularly suitable for the treatment of clothing that requires crispness.

[0032] 2. By adjusting the ratio of polyether epoxy silicone oil to amines and multifunctional aminosilanes, the proportion of groups providing softness, elasticity, stiffness and flexibility on the final modified silicone oil can be adjusted, so that the finished fabric has excellent flexibility, stiffness and excellent fluffiness and softness.

[0033] 3. The softener preparation method of the present invention is simple, the raw materials are readily available, the overall production cycle is suitable, and it is easy to promote in industry. Detailed Implementation

[0034] The present invention will be further described below through specific embodiments, but the scope of protection of the present invention is not limited thereto.

[0035] The amount of material to be fed in each of the following embodiments is calculated in parts by weight.

[0036] Preparation Example 1: Preparation of Chloroplatinic Isopropanol Catalyst Solution

[0037] Dissolve solid chloroplatinic acid in an appropriate amount of isopropanol and shake well to obtain a chloroplatinic acid catalyst solution. Store the solution in a dark container and seal it to protect it from light.

[0038] Preparation Example 2: Preparation of Polyether Epoxy Silicone Oil

[0039] Preparation Example 2-1: A method for preparing a polyether epoxy silicone oil:

[0040] 100 parts of terminal hydrogen silicone oil (molecular weight 8000) and 21 parts of allyl polyether epoxy containing polyoxyethylene ether and polyoxypropylene ether groups (molecular weight 800) were added to a reaction vessel. Dry nitrogen was introduced to replace the oxygen in the reaction vessel. After stirring evenly, the temperature was raised to 60°C, and 10 ppm of isopropanol chloroplatinate catalyst solution was added. The temperature was then raised to 90°C and the reaction was carried out for 8 hours to obtain transparent polyether epoxy silicone oil with a molecular weight of 9600. No characteristic absorption peak of hydrogen silane was detected by infrared spectroscopy or no bubbles were generated by bubble method.

[0041] Preparation Example 2-2, a method for preparing a polyether epoxy silicone oil:

[0042] 100 parts of terminal hydrogen silicone oil (molecular weight 10000) and 12 parts of allyl polyether epoxy containing polyoxyethylene ether and polyoxypropylene ether groups (molecular weight 600) were added to a reaction vessel. Dry nitrogen was introduced to replace the oxygen in the reaction vessel. After stirring evenly, the temperature was raised to 60°C, and 12 ppm of isopropanol chloroplatinate catalyst solution was added. Then the temperature was raised to 85°C and the reaction was carried out for 8 hours to obtain transparent polyether epoxy silicone oil with a molecular weight of 11200. No characteristic absorption peak of hydrogen silane was detected by infrared spectroscopy or no bubbles were generated by bubble method.

[0043] Preparation Examples 2-3: A method for preparing a polyether epoxy silicone oil:

[0044] Chloroplatinic acid solid powder was dissolved in an appropriate amount of isopropanol and shaken evenly to obtain a chloroplatinic acid catalyst solution. This solution was then stored in a dark-colored container, sealed, and protected from light. 100 parts of terminal hydrogen silicone oil (molecular weight 8000), 13.13 parts of allyl polyether epoxy containing only polyoxyethylene ether groups (molecular weight 500), and 12.57 parts of ethylene glycol monobutyl ether were added to a reaction vessel. After stirring evenly, the temperature was raised to 60°C, and 12 ppm of the chloroplatinic acid isopropanol catalyst solution was added. The temperature was then further raised to 95°C, and the reaction was carried out for 12 hours to obtain a transparent polyether epoxy silicone oil with a molecular weight of 9000. Infrared spectroscopy showed no characteristic absorption peaks of hydrogen silane, and bubble generation was observed using the bubble method.

[0045] Preparation Example 3: Preparation of Ordinary End-Epoxy Silicone Oil

[0046] Chloroplatinic acid solid powder was dissolved in an appropriate amount of isopropanol and shaken evenly to obtain a chloroplatinic acid catalyst solution. This solution was then stored in a dark, sealed container protected from light. 100 parts of 8000 molecular weight terminal hydrogen silicone oil and 3.71 parts of allyl glycidyl ether were added to a reaction vessel. Dry nitrogen was introduced to replace the oxygen in the reaction vessel. After stirring evenly, the temperature was raised to 60°C, and 12 ppm of the chloroplatinic acid isopropanol catalyst solution was added. The temperature was then further raised to 90°C, and the reaction was continued for 12 hours to obtain a transparent, ordinary terminal epoxy silicone oil with a molecular weight of approximately 8200. Infrared spectroscopy showed no characteristic absorption peaks of hydrogen silane, and bubble generation was observed using the bubble method.

[0047] Example 1

[0048] A method for preparing a multifunctional softener for fabric finishing includes the following steps:

[0049] S1: 100 parts of the polyether epoxy silicone oil prepared in Preparation Example 2-1, 2.44 parts of triethylenetetramine and 25.6 parts of isopropanol solvent were added to the reaction vessel according to the measured amount. Dry nitrogen was introduced to replace the oxygen in the reaction vessel. After stirring evenly, the temperature was raised to 82°C and maintained at this temperature for 10 hours. Then, 1.85 parts of aminopropyltriethoxysilane were added and the reaction was continued for 4 hours to obtain an active stiffening and softening silicone crude oil with a solid content of about 80%. The appearance was a light yellow to brownish-red transparent homogeneous solution.

[0050] S2: Take 20 parts of the above-mentioned active stiffening and softening silicone crude oil, 4 parts of isomeric tridecyl alcohol polyoxyethylene ether and 1.2 parts of glacial acetic acid and add them to the emulsification device. Start the emulsification and mixing, and then slowly add 54.8 parts of deionized water to carry out phase inversion emulsification to obtain an active stiffening and softening silicone emulsion with a solid content of about 20%. The emulsion is a transparent to semi-transparent pale yellow homogeneous solution.

[0051] Example 2

[0052] A method for preparing a multifunctional softener for fabric finishing includes the following steps:

[0053] S1: 100 parts of the polyether epoxy silicone oil prepared in Preparation Example 2-2, 3.39 parts of D230 and 25.8 parts of isopropanol solvent were added to the reaction vessel according to the measured amount. Dry nitrogen gas was introduced to replace the oxygen in the reaction vessel. After stirring evenly, the temperature was raised to 80°C and maintained at this temperature for 8 hours. Then, 1 part of aminopropyltriethoxysilane was added and the reaction was continued for 4 hours to obtain an active stiffening and softening silicone crude oil with a solid content of about 80%. The appearance was a light yellow to brownish-red transparent homogeneous solution. The appearance of the emulsion was a transparent to semi-transparent light yellow homogeneous solution.

[0054] S2: Take 20 parts of the above-mentioned active stiffening and softening silicone crude oil, 4 parts of fatty alcohol polyoxyethylene ether and 1.2 parts of glacial acetic acid and add them to the emulsification device. Start the emulsification and mixing, and then slowly add 54.8 parts of deionized water to carry out phase inversion emulsification to obtain an active stiffening and softening silicone emulsion with a solid content of about 20%.

[0055] Example 3

[0056] A method for preparing a multifunctional softener for fabric finishing includes the following steps:

[0057] S1: 100 parts of the polyether epoxy silicone oil prepared in Preparation Example 2-3, 3.16 parts of tetraethylenepentamine and 11.5 parts of ethylene glycol monobutyl ether solvent were added to the reaction vessel according to the measured amount. After stirring evenly, the temperature was raised to 95°C and maintained at this temperature for 12 hours. Then, 1.85 parts of aminopropyltriethoxysilane were added and the reaction was continued for 4 hours to obtain an active stiffening and softening silicone crude oil with a solid content of about 80%. The appearance was a light yellow to brownish-red transparent homogeneous solution.

[0058] S2: Take 20 parts of the above-mentioned active stiffening and softening silicone crude oil, 4 parts of the mixed emulsifier of isomeric tridecyl alcohol polyoxyethylene ether and fatty alcohol polyoxyethylene ether, and 1.2 parts of glacial acetic acid and add them to the emulsification device. Start the emulsification and mixing, and then slowly add 54.8 parts of deionized water to carry out phase inversion emulsification to obtain an active stiffening and softening silicone emulsion with a solid content of about 20%. The emulsion is a transparent to semi-transparent pale yellow homogeneous solution.

[0059] Comparative Example 1

[0060] A method for preparing a fabric softener includes the following steps:

[0061] S1: 100 parts of the ordinary end-epoxy silicone oil prepared in Preparation Example 3, 4.6 parts of D230 and 69.7 parts of isopropanol solvent were added to the reaction vessel according to the measured amount. Dry nitrogen gas was introduced to replace the oxygen in the reaction vessel. After stirring evenly, the temperature was raised to 82°C and maintained at this temperature for 12 hours to obtain the softening finishing agent organosilicon crude oil, which is a light yellow to brownish-red transparent homogeneous solution.

[0062] S2: Take 20 parts of the above-mentioned softening agent silicone crude oil, 4 parts of isomeric tridecyl alcohol polyoxyethylene ether and 1.2 parts of glacial acetic acid and add them to the emulsification device. Start the emulsification and mixing, and then slowly add 54.8 parts of deionized water to carry out phase inversion emulsification to obtain a softening agent silicone emulsion with a solid content of about 16%. The emulsion is a transparent to semi-transparent pale yellow homogeneous solution.

[0063] Comparative Example 2

[0064] A method for preparing a fabric softener includes the following steps:

[0065] S1: 100 parts of the polyether epoxy silicone oil prepared in Preparation Examples 2-3, 3.16 parts of tetraethylenepentamine and 11.1 parts of ethylene glycol monobutyl ether solvent were added to the reaction vessel according to the measured amount. After stirring evenly, the temperature was raised to 95°C and maintained at this temperature for 12 hours to obtain a revitalizing and softening silicone crude oil with a solid content of about 80%. The appearance was a light yellow to brownish-red transparent homogeneous solution.

[0066] S2: Take 20 parts of the above-mentioned active stiffening and softening silicone crude oil, 4 parts of the mixed emulsifier of isomeric tridecyl alcohol polyoxyethylene ether and fatty alcohol polyoxyethylene ether, and 1.2 parts of glacial acetic acid and add them to the emulsification device. Start the emulsification and mixing, and then slowly add 54.8 parts of deionized water to carry out phase inversion emulsification to obtain an active stiffening and softening silicone emulsion with a solid content of about 20%. The emulsion is a transparent to semi-transparent pale yellow homogeneous solution.

[0067] Performance evaluation:

[0068] The softeners prepared in Examples 1-3 and Comparative Examples 1-2, as well as two commercially available softeners (T3030, 786), were applied to polyester knitted fabrics, nylon four-way stretch fabrics, and cotton woven fabrics.

[0069] The finishing process is as follows: solution preparation → dip and roll → baking (170℃×90s) → rehydration for 24h → evaluation.

[0070] The amount of silicone emulsion with 20% solid content obtained in Examples 1-3 and Comparative Example 2 was 6 g / L, and the amount of silicone emulsion with 16% solid content obtained in Comparative Example 1 was 7.5 g / L. Commercially available softeners were also used with equivalent solid content. The roll-up rate was 80%. The evaluation results are shown in Table 1 below:

[0071] Application performance testing:

[0072] ①Tactile evaluation: The evaluation is conducted by touch, using a 1-5 rating system, with 1 being the worst and 5 being the best. Five people evaluate simultaneously, and the average value is taken. The evaluation includes: fluffiness, crispness, fluffiness, and softness.

[0073] The test results are shown in Table 1 below:

[0074] Table 1

[0075] Flexibleness, stiffness, fluffiness, softness. Examples 1: 5554-5; Examples 2: 5554-5; Examples 3: 4-54-54-5; Comparative Example 1: 111-24-5; Comparative Example 2: 1-21-22-34-5; Commercially available fabric softener (786): 21-21-24-5; Commercially available fabric softener (T3030): 2-32-32-34-5 surface

[0076] Data from Examples 1-3, Comparative Examples 1-2, and commercially available fabric softeners in Table 1 show that the fabric treated with the softener prepared in this invention exhibits significantly improved flexibility, crispness, and fluffiness compared to the two commercially available softeners and the softener obtained in Comparative Examples 1-2. Furthermore, the fabric treated with the commercially available softener does not exhibit a decrease in softness; in fact, the softness is even better. This results in a combination of flexibility, crispness, and fluffiness in the fabric, demonstrating that the softener of this invention not only meets commercial requirements but also significantly improves the fabric's performance and addresses the specific style requirements of flexibility and crispness. The polyoxypropylene (PO) groups and amino groups of the aminosilane in the polyether structure of the flexible and stiffening softener of this invention increase the hydrogen bonds or covalent bonds with the hydroxyl groups of natural fibers such as cotton or the carboxyl groups of synthetic fibers, thereby increasing the fluffiness and flexibility of the fabric. The hydrolysis and condensation of the multi-reactive groups, and the increased degree of crosslinking, can increase the stiffness and flexibility of the fabric. The amino groups in the aminosilane and the multi-reactive groups work together to enhance the flexibility and stiffness of the fabric.

[0077] The test results of Example 3 compared to Comparative Example 2 in the table above show that Example 3 of the present invention significantly improves the fabric's flexibility, crispness, bulkiness, and softness compared to Comparative Example 2. This indicates that the addition of multifunctional aminosilanes allows the amino groups to undergo condensation reactions with epoxy groups. The increased amino groups form hydrogen bonds or covalent bonds with the hydroxyl groups of natural fibers such as cotton or the carboxyl groups of synthetic fibers, thus enhancing the fabric's bulkiness and flexibility. Furthermore, the hydrolysis and condensation of multiple reactive groups, leading to increased crosslinking, further enhances the fabric's crispness, elasticity, and flexibility.

[0078] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for preparing a multifunctional softener, characterized in that, The process includes the following steps: S1: Polyether epoxy silicone oil, amine, and organic solvent are added to a reaction vessel in measured amounts. Dry nitrogen gas is introduced, and after stirring evenly, the temperature is raised to 70-135℃. After the reaction, a multifunctional aminosilane is added to continue the reaction to obtain organosilicon crude oil; S2: An emulsifier is added to the organosilicon crude oil obtained in S1 for emulsification, ultimately yielding a multifunctional softener; the amine is one or more of diamines or polyamines; wherein the molar ratio of the amine to the polyether epoxy silicone oil is 0.7-1.8:1; the multifunctional aminosilane is aminopropyltrimethoxysilane, aminopropyltriethoxysilane, 3-(2-aminoethyl)-aminopropyltrimethoxysilane, N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane, bis-( One or more of 3-trimethoxysilylpropylamine and bis-(3-triethoxysilylpropylamine); wherein the molar ratio of the multifunctional aminosilane to the polyether epoxy silicone oil is 0.2-2.2:1; the preparation method of the polyether epoxy silicone oil is as follows: terminal hydrogen silicone oil and allyl polyether epoxy and / or organic solvent are added to a reaction vessel, dry nitrogen is introduced, the mixture is stirred evenly, and then the temperature is raised to 50-70°C, a catalyst solution is added, and then the temperature is further raised to 75-115°C to react, and a transparent polyether epoxy silicone oil is obtained after the reaction; wherein the molecular weight of the terminal hydrogen silicone oil is 2000-25000, the molecular weight of the allyl polyether epoxy is 300-2000, and the molar ratio of the allyl polyether epoxy to the terminal hydrogen silicone oil is 1.9-2.2:

1.

2. The method for preparing a multifunctional softener according to claim 1, characterized in that, The diamine is ethylenediamine, hexamethylenediamine, or tetramethylhexamethylenediamine, as well as polyetheramines from the D, ED, and T series; the polyamine is diethylenetriamine, triethylenetetramine, or tetraethylenepentamine.

3. The method for preparing a multifunctional softener according to claim 1, characterized in that, The multifunctional aminosilane is aminopropyltriethoxysilane or bis-(3-triethoxysilylpropyl)amine.

4. The method for preparing a multifunctional softener according to claim 1, characterized in that, The emulsifier is one or more of fatty alcohol polyoxyethylene ether or isomeric alcohol polyoxyethylene ether.

5. The method for preparing a multifunctional softener according to claim 1, characterized in that: The catalyst is chloroplatinic acid or KARSTEDT catalyst, and the amount of the catalyst used is 6-20 ppm.