Preparation method of acrylate modified block silicone oil
Through the preparation method of acrylate modified block silicone oil, the application problem of existing amino silicone oil in the textile industry is solved, the hydrophilicity and feel of the fabric is improved, the production risks and costs are reduced, and the stability is achieved and durability.
Patent Information
- Application Number
- CN202411309527.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-01-10
AI Technical Summary
The existing application of amino silicone oil in the textile industry has problems such as hydrophobicity, reduced hygroscopicity, poor wearing comfort, easy yellowing, difficult emulsification, and sensitivity to high electrolytes, high temperatures, and high shear force, and the high solvent proportion is caused by Production, storage and transportation are flammable and explosive, and environmental protection requirements are constantly increasing, making cost control difficult.
Using the preparation method of acrylate modified block silicone oil, equilibrium polymerization with tetramethylcyclotetrasiloxane with acrylate, amino double-head and catalyst, and then terpolymerization with double-terminal epoxy polyether is performed to reduce the Pressure distillation removes isopropanol, improves the solid content and flash point of silicone oil, and enhances the feel of the fabric through emulsification.
It improves the solid content and flash point of block silicone oil, reduces the safety risks of production, storage and transportation, enhances the hydrophilicity and feel of the fabric, reduces production costs, and improves the shear resistance and salt resistance of the product. Acid and alkali resistance and high temperature stability.
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Abstract
Description
Technical Field
[0001] The invention relates to a method for preparing acrylate modified block silicone oil, in particular to a method for introducing ester groups into a siloxane main chain to enhance compatibility and adsorption with fabrics. Background Art
[0002] At present, amino silicone oil and modified amino silicone oil, such as aminoethylaminopropyl dimethylsiloxane, are widely used as softeners in the textile industry. The main chain is dimethylsiloxane segment, and the side chain aminoethylaminopropyl has strong adsorption to anchor the dimethylsiloxane segment on the fiber surface, thus giving the fabric softness, smoothness, elasticity, and wrinkle resistance. It is also human-friendly, so it is very popular. However, the treated fabrics show hydrophobicity, reduce the hygroscopicity and wearing comfort of the fabrics, and are prone to yellowing and difficult to emulsify. It is sensitive to high electrolytes, high temperatures, high shear forces, and has poor compatibility. It has now been gradually replaced by various block silicone oils.
[0003] The synthesis process of block silicone oil is usually prepared by ternary copolymerization of epoxy silicone oil and amino polyether using isopropyl alcohol, ethylene glycol monobutyl ether, etc. as solvents. This method is characterized by fast reaction speed, low reaction temperature, high raw material conversion rate, and adaptability to the reaction of epoxy silicone oils of different molecular weights and amino polyethers of different structures, and can prepare block silicone oils of various styles.
[0004] However, due to the low flash point of isopropyl alcohol, in order to meet the loose, soft, smooth and elastic style, the solvent accounts for up to 30-50% of the block silicone oil in the preparation process. There are flammable and explosive risks in the production, storage and transportation processes. In addition, the solvent cannot give the fabric a feel during the finishing process, but only helps emulsification and dispersion. In addition, with the continuous improvement of environmental protection requirements in recent years and the continued downturn in the silicone industry, it is of great research significance to reduce costs, increase efficiency, increase the effective content of block silicone oil, and reduce costs. Summary of the invention
[0005] In view of the above problems, the present invention provides a novel method for synthesizing acrylate-modified low-solvent block silicone oil, comprising the following steps: (1) Tetramethylcyclotetrasiloxane is first added to a reaction kettle, and the temperature is raised to 80°C-90°C after nitrogen substitution, and then acrylate is added dropwise. After the addition is completed, the reaction is carried out at the temperature to obtain an acrylate modified intermediate; (2) adding dimethylsiloxane mixed ring body, acrylate modified intermediate, amino double head and catalyst into the reaction kettle in sequence to carry out equilibrium polymerization reaction, neutralizing after the reaction is completed, and vacuum degassing to obtain acrylate modified α, ω-bisamino silicone oil; (3) Adding a double-terminal epoxy polyether solution to the acrylate-modified α,ω-bisamino silicone oil, performing a reaction and then performing reduced pressure distillation to obtain an acrylate-modified block silicone oil.
[0006] In the step (1), the acrylate includes any one or more of methyl acrylate, methyl methacrylate, ethyl acrylate, and ethyl methacrylate; and the molar ratio of tetramethylcyclotetrasiloxane to acrylate is 1:3.98-4.01.
[0007] The heat preservation reaction is carried out at 80-85° C. for 2-4 hours, and then placed in a kettle at 60-80° C. overnight.
[0008] In the step (2), the amino double-capped siloxane coupling agent is a siloxane coupling agent with amino groups at both ends, including any one of a product obtained by amination of a linear diamine and an epoxy double-capped siloxane coupling agent, H2NCH2CH2CH2(CH3)2SiOSi(CH3)2CH2CH2CH2CH3NH2, and (CH3)2NCH2CH2CH2(CH3)2SiOSi(CH3)2CH2CH2CH2CH3N(CH3)2; The linear diamine and epoxy double-capped amination process, the linear diamine is any one of ED200, ED400, ED600, D200, D400, ethylenediamine, hexamethylenediamine, hydroxyethylethylenediamine, tetramethylhexamethylenediamine; the molar ratio of the epoxy double-capped head to the linear diamine is 1:1.9-2.0, the epoxy double-capped head is added to the diamine under a nitrogen atmosphere, and the reaction is stirred at 80-100°C for 10-20 hours to obtain the product.
[0009] The added amounts of the dimethylsiloxane mixed ring body, the acrylate modified intermediate, the amino double end cap and the catalyst are 30-50 parts, 30-50 parts, 1-4 parts and 0.08-0.4 parts respectively.
[0010] The polymerization temperature is 130-135° C., and the equilibrium polymerization reaction time is 2-3 hours.
[0011] In order to improve the soft style of the hand finishing agent, as a preferred embodiment, the diamine and epoxy double-end amination in step (2) are preferably ED200 and ED400, DMC: intermediate: amino double-end: double-end epoxy polyether is 70:60:15:6, and the molecular weight of the double-end epoxy polyether is 600; in order to improve the hydrophilicity of the finishing agent, the amine in step (2) is preferably (CH3)2NCH2CH2CH2(CH3)2SiOSi(CH3)2CH2CH2CH2CH3N(CH3)2, DMC: intermediate: amino double-end: double-end epoxy polyether is 60:50:2.5:5, and the molecular weight of the double-end epoxy polyether is 1500; in order to increase the smooth style, The amine in step (2) is preferably D600 or D900, the ratio of DMC: intermediate: amino double-capped: double-terminal epoxy polyether is 80:60-100:8-12:6, and the molecular weight of the double-terminal epoxy polyether is 600.
[0012] In the step (3), the double-terminal epoxy polyether is a polyether epoxy with epoxy groups at both ends. Under the condition of isopropanol as solvent, the acrylate-modified α,ω-double-terminal amino silicone oil and the double-terminal epoxy polyether are subjected to a ternary copolymerization reaction, and the molar ratio of epoxy group to amino group in the reaction system is controlled to be 1:1.5-1.8; the reaction is kept warm at 80-120°C for 10-20h.
[0013] When preparing hydrophilic silicone oil, acrylate-modified α,ω-biamino silicone oil needs to be quaternized in isopropanol solvent to cationize the tertiary amino group, and then ternary copolymerized with bifunctional epoxy polyether under isopropanol solvent conditions. The quaternization is to disperse the acrylate-modified α,ω-biamino silicone oil in isopropanol, and cationize the tertiary amino group with an organic acid such as formic acid, acetic acid, propionic acid, etc. to obtain a quaternized acrylate-modified α,ω-biamino silicone oil.
[0014] After the reaction is completed, the reaction material is cooled to 70-75°C, the receiver connected to the reactor is evacuated to above -95kPa, and isopropanol is quickly removed by vacuum distillation to concentrate the solid content of the crude oil to above 85%. After the isopropanol is removed by vacuum distillation, in order to facilitate the subsequent emulsification into finishing agent proofing comparison and better product stability, about 10% of isopropanol needs to be retained in the block silicone oil system. In some embodiments, when the viscosity of the block silicone oil is relatively high, homologous solvents such as ethylene glycol monobutyl ether and diethylene glycol butyl ether need to be added to reduce the viscosity of the block silicone oil.
[0015] Preferably, after the reaction is completed, the isopropanol is evaporated and the solvent added is ethylene glycol monobutyl ether or diethylene glycol butyl ether. The amount of ethylene glycol monobutyl ether solvent added is 10-20% of the solid content of the block silicone oil. Special note: Downstream customers such as dyeing factories, fabric finishing factories, etc. can add 10-20% of ethylene glycol monobutyl ether or diethylene glycol butyl ether before emulsification of the block silicone oil, stir evenly and then emulsify, which can further improve the feel and style of the fabric.
[0016] The double-terminal epoxy polyether structural formula of the present invention is as follows: .
[0017] The invention provides a fabric feel finishing agent, which is prepared by emulsifying the acrylate modified block silicone oil prepared by the above method.
[0018] The emulsification comprises the following steps: adding an emulsifier and glacial acetic acid to the acrylate modified block silicone oil, controlling the oil-emulsion ratio to 3:1-9:1, with the glacial acetic acid accounting for 2-3% of the acrylate modified block silicone oil, and emulsifying to form a transparent to translucent homogeneous emulsion, thus obtaining a fabric feel finishing agent.
[0019] By introducing ester groups into the main chain of siloxane, the compatibility with fabrics is enhanced, especially polyester fabrics. After finishing with finishing agents and high-temperature baking, the acrylate in the main chain of siloxane blends with the polyester fibers and embeds into the polyester fibers, thereby anchoring the finishing agent on the surface of the fabric, giving the fabric a rich feel.
[0020] The emulsifier is one or more of fatty alcohol polyoxyethylene ether, alkylphenol polyoxyethylene ether, and isomeric tridecanol polyoxyethylene ether.
[0021] Preferably, the emulsifier is two or more of fatty alcohol polyoxyethylene ether having 5-40 polyoxyethylene units, alkylphenol polyoxyethylene ether, and isomeric tridecanol polyoxyethylene ether.
[0022] The present invention has the following beneficial effects: The present invention uses isopropanol as a solvent, has a fast reaction rate, a high raw material conversion rate, and can synthesize block silicone oils with various application properties. After the reaction is completed, the isopropanol can be quickly removed at a relatively low temperature by vacuum distillation to avoid yellowing or cross-linking of high-temperature amino groups. The block silicone oil prepared by the present invention has a high content and a high flash point, which improves the safety of storage and transportation. An ester group is introduced into the siloxane segment by hydrosilylation, and a series of physical reactions such as similar phase fusion and co-crystallization occur between the ester group and the ester group of the polyester fabric during the post-finishing high-temperature baking process, and the finishing agent is anchored on the fabric surface. The prepared crude oil can effectively prepare a corresponding feel style according to customer needs. DETAILED DESCRIPTION
[0023] The embodiments of the present invention will be described in detail below with reference to examples, but those skilled in the art will appreciate that the following examples are only used to illustrate the present invention and should not be construed as limiting the scope of the present invention.
[0024] In the present invention, unless otherwise specified, all percentages are by weight, and the equipment and raw materials used can be purchased from the market or are commonly used in the art. The methods in the following embodiments are all conventional methods in the art unless otherwise specified.
[0025] Example 1 (1) Tetramethylcyclotetrasiloxane (D4H) was first added to a reaction kettle, and the temperature was raised to 80°C after nitrogen substitution, and then ethyl methacrylate was added dropwise, and the reaction temperature was controlled at 80-90°C, and the molar ratio of D4H to acrylate was 1:3.98-4.01. After the addition was completed, the reaction was kept at 80-85°C for 2-4 hours, and the stirring was stopped. The reaction was placed in the kettle at 60-80°C overnight to obtain an ethyl methacrylate modified intermediate; Add ED400 into the reaction kettle, replace with nitrogen, and add epoxy double-capped end cap under nitrogen protection with stirring. The molar ratio of epoxy double-capped end cap to ED400 is 1:1.9. Keep the temperature at 80-90℃ for 8h and then cool down to obtain amino double-capped end cap coupling agent.
[0026] (2) 70 parts of DMC, 60 parts of ethyl methacrylate modified intermediate, 15 parts of amino double-head coupling agent and 100 ppm of alkali-gel catalyst are added to the reactor in sequence, and equilibrium polymerization is carried out at 130-135° C. for 3 hours, followed by neutralization, and finally vacuum removal of low boiling point to obtain ethyl methacrylate modified α, ω-bisamino silicone oil; then 35% of isopropanol and 6 parts of 600 molecular weight double-terminal epoxy polyether are added to the total material and kept warm for reaction at 80-95° C. for 10-20 hours, and the isopropanol is removed by reduced pressure distillation to concentrate the crude oil to about 90%, thereby obtaining a high-content block silicone oil with an effective content of 90%. The collected isopropanol can be reused, which is beneficial to reducing production costs.
[0027] (3) Add the high-content block silicone oil obtained in (2) into an emulsifying kettle, add isomeric tridecanol polyoxyethylene ether 1303 and 1310 compound emulsifier at an oil-to-emulsion ratio of 5:1, and then add 2-3% glacial acetic acid to emulsify to obtain a transparent to translucent homogeneous emulsion, i.e., a hand-feel finishing agent.
[0028]
[0029] Example 2 (1) Ethyl methacrylate modified intermediate is the same as in Example 1. D600 is added to the reaction kettle. After nitrogen replacement, epoxy double-capped coupling agent is added with stirring under nitrogen protection. The molar ratio of epoxy double-capped coupling agent to D600 is 1:1.9. The reaction is kept at 90-100°C for 10 hours and then cooled to obtain amino double-capped coupling agent.
[0030] (2) 80 parts of DMC, 80 parts of intermediate, 10 parts of amino double-end and 100 ppm of alkali-gel catalyst were added to the reactor in sequence, and equilibrium polymerization was carried out at 130-135° C. for 3 hours, followed by neutralization, and finally vacuum removal of low boiling point to obtain ethyl methacrylate modified α, ω-bisamino silicone oil; then 40% of the total material amount of isopropanol and 6 parts of 600 molecular weight double-end epoxy polyether were added to react at 80-95° C. for 15-20 hours, and part of the isopropanol was removed by vacuum distillation to concentrate the crude oil by 90%, and then 10% of ethylene glycol monobutyl ether was added and stirred evenly to obtain a high-content block silicone oil with an effective content of 85%. The collected isopropanol can be reused, which is beneficial to reducing production costs.
[0031] (3) Add the high-content block silicone oil obtained in (2) into an emulsifying kettle, add isomeric tridecanol polyoxyethylene ether 1303 and 1310 compound emulsifier at an oil-to-emulsion ratio of 7:1, and then add 1.5-2% glacial acetic acid to emulsify to obtain a transparent to translucent homogeneous emulsion, i.e., a hand-feel finishing agent.
[0032]
[0033] Example 3 (1) The ethyl methacrylate modified intermediate is the same as that in Example 1; the amino double end is a secondary dibasic linear amine (CH3)2NCH2CH2CH2(CH3)2SiOSi(CH3)2CH2CH2CH2CH3N(CH3)2.
[0034] (2) 60 parts of DMC, 50 parts of intermediate, 2.5 parts of amino double-end and 100 ppm of alkali gel catalyst were added to the reactor in sequence, and equilibrium polymerization was carried out at 130-135°C for 3 hours, followed by neutralization, and finally vacuum removal of low boiling point to obtain ethyl methacrylate modified α, ω-bisamino silicone oil; then 1.5 parts of acetic acid and 30% isopropanol of the total material were added to quaternize the α, ω-bisamino silicone oil for 5 hours, and finally 5 parts of 1000 molecular weight double-end epoxy polyether were added to react at 90-100°C for 10-15 hours, and part of the isopropanol was removed by vacuum distillation to concentrate the crude oil to 85%, thereby obtaining a high-content block silicone oil with an effective content of 85%. The collected isopropanol can be reused, which is beneficial to reducing production costs.
[0035] (3) Add the high-content block silicone oil obtained in (2) into an emulsifying kettle, add isomeric tridecanol polyoxyethylene ether 1303 and 1310 compound emulsifier at an oil-to-emulsion ratio of 4:1, and then add 1.5-2% glacial acetic acid to emulsify to obtain a transparent to translucent homogeneous emulsion, i.e., a hand-feel finishing agent.
[0036]
[0037] Comparative Example 1 (1) D600 was added into the reaction kettle. After nitrogen replacement, epoxy double-capped coupling agent was added under nitrogen protection with stirring. The molar ratio of epoxy double-capped coupling agent to D600 was 1:1.9. The reaction was kept at 90-100°C for 10 hours and then cooled to obtain amino double-capped coupling agent.
[0038] (2) 160 parts of DMC, 12 parts of amino double-capped silicone oil and 100 ppm of alkali-gel catalyst were added to the reactor in sequence, and equilibrium polymerization was carried out at 130-135°C for 3 hours, followed by neutralization, and finally vacuum removal of the low boiling point to obtain polyether-modified α, ω-bisamino silicone oil.
[0039] (3) Add the polyether-modified amino silicone oil obtained in (2) into an emulsifying kettle, add isomeric tridecanol polyoxyethylene ether 1303 and 1310 compound emulsifier at an oil-to-emulsion ratio of 5:1, and then add 1.5-2% glacial acetic acid to emulsify to obtain a transparent to translucent homogeneous emulsion, i.e., a hand-feel finishing agent.
[0040]
[0041] Comparative Example 2 On the basis of Example 2, the amount of DMC in step (2) was changed to 160 parts, the amount of the intermediate was changed to 0 parts, and the other conditions remained unchanged.
[0042]
[0043] Performance Test: (1) Emulsion stability test: Since the prepared emulsion concentration is relatively high and the emulsion consistency is inconsistent, the emulsions in the examples and comparative examples were diluted to 10%, and then the shear resistance, salt resistance, acid and alkali resistance, high temperature resistance and long-term stability tests were carried out. The results are shown in the following table.
[0044]
[0045] As can be seen from the above table, the amino silicone oil emulsions prepared in the embodiments of the present invention have better shear resistance, salt resistance, acid and alkali resistance, high temperature resistance and storage stability than ordinary amino silicone oils. In Comparative Example 2, due to the large proportion of dimethylsiloxane segments in the main chain, the salt resistance and high temperature resistance of the emulsion are reduced.
[0046] (2) Comparison of feel and style The block silicone oil emulsion prepared in the embodiment and the commercially available block silicone oil emulsified proofing were respectively compared, and the working liquid was 2g / L. Untreated polyester-cotton cloth with a specification of 20cm*30cm was taken for testing and finishing, and 50 untreated feather yarns with a length of 20cm were combed and tied in the middle to test the elasticity. All test samples were soaked in the working liquid for 3 minutes, and then treated with a small variable frequency padding car for one dip and one padding, with a rolling rate of 70%, and then placed in a shaping and drying small sample machine and dried at 170℃ for 90s, and the performance was evaluated after moisture absorption at room temperature.
[0047] Hydrophilicity: Using the static water drop method, drop a drop of water 1 cm away from the fabric, and determine the hydrophilicity based on the time it takes for the water drop to completely diffuse.
[0048] The hand feel style is evaluated by an 8-person hand touch method. The score is divided into 1 to 6 levels based on comprehensive factors such as the softness, resilience and smoothness of the fabric after treatment. The larger the value, the better the hand feel. Then, based on the 8-person score, the one with a larger error is removed and the average value is taken. The hand feel of the treated fabric is evaluated and scored and compared with the block silicone oil of the same style from Kefeng using the same process for emulsification proofing.
[0049] The results are as follows:
[0050] The above-mentioned embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The embodiments and features in the embodiments of the present application can be arbitrarily combined with each other without conflict. The protection scope of the present invention shall be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.
Claims
1. A method for preparing an acrylate-modified block silicone oil, characterized in that: The following steps are involved: (1) Tetramethylcyclotetrasiloxane is first added to a reaction kettle, and the temperature is raised to 80°C-90°C after nitrogen substitution, and then acrylate is added dropwise. After the addition is completed, the reaction is carried out at the temperature to obtain an acrylate modified intermediate; (2) adding dimethylsiloxane mixed ring body, acrylate modified intermediate, amino double head and catalyst into the reaction kettle in sequence to carry out equilibrium polymerization reaction, neutralizing after the reaction is completed, and then removing low boiling points in vacuum to obtain acrylate modified α, ω-bisamino silicone oil; (3) Adding a double-terminated epoxy polyether solution to the acrylate-modified α,ω-double-terminated amino silicone oil, performing a reaction and then performing reduced pressure distillation to obtain an acrylate-modified block silicone oil.
2. The method for preparing the acrylate-modified block silicone oil according to claim 1, characterized in that: The acrylic acid ester in step (1) includes any one or more of methyl acrylate, methyl methacrylate, ethyl acrylate, and ethyl methacrylate; and the molar ratio of tetramethylcyclotetrasiloxane to acrylic acid ester is 1:3.98-4.
01.
3. The method for preparing the acrylate-modified block silicone oil according to claim 1, characterized in that: The amino double-capped siloxane coupling agent in step (2) is a siloxane coupling agent with amino groups at both ends, including any one of a product obtained by amination of a linear diamine and an epoxy double-capped siloxane coupling agent, H2NCH2CH2CH2(CH3)2SiOSi(CH3)2CH2CH2CH2CH3NH2, and (CH3)2NCH2CH2CH2(CH3)2SiOSi(CH3)2CH2CH2CH2CH3N(CH3)2; The linear diamine and epoxy double-capped amination process, the linear diamine is any one of ED200, ED400, ED600, D200, D400, ethylenediamine, hexamethylenediamine, hydroxyethylethylenediamine, tetramethylhexamethylenediamine; the molar ratio of the epoxy double-capped head to the linear diamine is 1:1.9-2.0, the epoxy double-capped head is added to the diamine under a nitrogen atmosphere, and the reaction is stirred at 80-100°C for 10-20 hours to obtain the product.
4. The method for preparing the acrylate-modified block silicone oil according to claim 1, characterized in that: In the step (2), the added amounts of the dimethylsiloxane mixed ring body, the intermediate, the amino double end cap and the catalyst are 50-100 parts, 50-100 parts, 1-20 parts and 0.08-0.4 parts.
5. The method for preparing the acrylate-modified block silicone oil according to claim 1, characterized in that: In the step (3), the double-terminal epoxy polyether is a polyether epoxy with epoxy groups at both ends. Under the condition of isopropanol as solvent, the acrylate-modified α,ω-double-terminal amino silicone oil and the double-terminal epoxy polyether are subjected to a ternary copolymerization reaction, and the molar ratio of epoxy group to amino group in the reaction system is controlled to be 1:1.5-1.8; the reaction is kept warm at 80-120°C for 10-20h.
6. The method for preparing the acrylate-modified block silicone oil according to claim 5, characterized in that: When preparing hydrophilic silicone oil, acrylate-modified α,ω-biamino silicone oil needs to be quaternized in isopropanol solvent to cationize the tertiary amino group, and then ternary copolymerized with bifunctional epoxy polyether under isopropanol solvent conditions. The quaternization is to disperse the acrylate-modified α,ω-biamino silicone oil in isopropanol, and cationize the tertiary amino group with an organic acid such as formic acid, acetic acid, propionic acid, etc. to obtain a quaternized acrylate-modified α,ω-biamino silicone oil.
7. The method for preparing the acrylate-modified block silicone oil according to claim 5 or 6, characterized in that: After the reaction is completed, the reaction material is cooled to 70-75°C, the container receiving isopropanol is evacuated to above -95kPa, and isopropanol is quickly removed by vacuum distillation to concentrate the solid content of crude oil to above 85%; after isopropanol is removed by vacuum distillation, in order to facilitate subsequent emulsification into finishing agent proofing, homologous solvents such as ethylene glycol monobutyl ether and diethylene glycol butyl ether are added to reduce the viscosity of the block silicone oil, and ethylene glycol monobutyl ether and diethylene glycol butyl ether also help emulsification. The amount of ethylene glycol monobutyl ether solvent added is within 10% of the solid content of the block silicone oil.
8. A fabric feel finishing agent, characterized in that: The acrylate-modified block silicone oil is prepared by emulsifying the acrylate-modified block silicone oil prepared by the method according to any one of claims 1 to 7.
9. The fabric feel finishing agent according to claim 8, characterized in that: The emulsification comprises the following steps: adding an emulsifier and glacial acetic acid to the acrylate modified block silicone oil, controlling the oil-emulsion ratio to 3:1-9:1, with the glacial acetic acid accounting for 2-3% of the acrylate modified block silicone oil, and emulsifying to form a transparent to translucent homogeneous emulsion, thus obtaining a fabric feel finishing agent.
10. The fabric feel finishing agent according to claim 9, characterized in that: The emulsifier is one or more of fatty alcohol polyoxyethylene ether, alkylphenol polyoxyethylene ether, and isomeric tridecanol polyoxyethylene ether.
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