A special oiling agent for high-speed spinning of polyester and its preparation method

Abstract

The present application relates to a kind of directly oiling oil agent of crude oil of polyester high-speed spinning special oil and preparation method, the oil agent of the present application contains not less than 20wt% anti-coking agent;Anti-coking agent is composed of fatty acid methyl ester ethoxylate type surfactant and polyethylene glycol laurate of double end-capped;Preparation method is: proportionally sequentially adding each component into reaction kettle, stirring uniformly, after 1~1.5h under 40~45 ℃, send to precipitation kettle and carry out cooling, after 15min, filter, directly oiling oil agent of polyester high-speed spinning special oil of crude oil is obtained.The oil agent of the present application contains little water, is not easy to delamination, corruption, not easy to evaporate when passing through hot roll, to avoid the environmental hazards and influence to human health generated, and it has good anti-coking property and antistatic property, the energy consumption when carrying out polyester high-speed spinning also has some reduction.

Description

Technical Field

[0001] This invention belongs to the field of spinning oiling technology, specifically a special oiling agent for high-speed polyester spinning that can be directly applied to crude oil and its preparation method. Background Technology

[0002] In traditional technology, high-speed polyester FDY spinning primarily utilizes emulsion-type spinning oils. Before use, these oils require mixing crude oil with water to form an emulsion. During spinning with emulsion-type oils, the temperature of the heated rollers needs to be increased to evaporate the water in the oil, consuming a significant amount of energy. In this process, the oil film often breaks down along with the evaporation of water, leading to uneven oil application on the fiber surface. Furthermore, to prevent emulsion separation and spoilage, a certain proportion of preservatives is usually added to the emulsion-type oil to extend its shelf life. However, these preservatives easily evaporate with the water at the heated rollers, causing environmental pollution and potential harm to human health.

[0003] Patent CN115404570A discloses an FDY spinning oil for ultrafine denier fibers and its preparation method. The emulsion-type spinning oil used cannot avoid the significant energy consumption and potential oil film damage caused by water evaporation at the hot roller. Furthermore, these emulsions must contain preservatives and anti-separation agents (otherwise the oil will deteriorate); and these substances are easily volatile at the hot roller, causing environmental pollution.

[0004] Reference 1, "Winkler M, Eitel G, Dfler P, et al. A brief analysis of the application of crude oil-based oil agent dakoNeat [J]. Synthetic Fiber Industry, 2018, 41(06): 67-69," lists the temperatures of the spinning drawing hot rollers and setting hot rollers of existing emulsion-type and crude oil-type polyester FDY oil agents. In the existing technology, the crude oil in the spinning oil agent has a low water content and high viscosity, which easily leads to serious coking problems at the hot rollers. Summary of the Invention

[0005] The purpose of this invention is to solve the problems existing in the prior art and to provide a special oiling agent for high-speed polyester spinning that can be directly applied to crude oil and its preparation method.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A special oiling agent for high-speed polyester spinning that can be directly applied to crude oil contains no less than 20 wt% of an anti-coking agent; the anti-coking agent is composed of a double-terminated surfactant of fatty acid methyl ester ethoxylates (FMEE) and polyethylene glycol laurate in a mass ratio of 3-4:1.25-1.5.

[0008] FMEE is a novel type of dual-terminated nonionic surfactant. Its ethoxy structure exists at two different positions on the molecular chain, obtained by the simultaneous ethoxylation of hydroxyl and ester groups. It has both ester-ether and alcohol-ether structures in the same molecular formula, exhibiting excellent thermal stability and meeting the requirements for anti-coking.

[0009] Polyethylene glycol laurate itself has good heat resistance and does not coke. Its excellent wettability can ensure the spreading speed of the oil under high stretching. Moreover, the ester bond in the ester ether structure of fatty acid methyl ester ethoxylate double-terminated surfactants has similar compatibility with the ester bond in the lubricating ester in polyethylene glycol laurate, resulting in stronger emulsifying power. The small amount of diester formed during the synthesis of polyethylene glycol laurate ester ether can also supplement the smoothness of the oil.

[0010] The key problem with existing technologies that use spinning oil to replace emulsion-type oil for direct oiling is that the crude oil in spinning oil has low water content and high viscosity, which easily leads to severe coking at the hot roller. This hinders the development of direct oiling. Although some anti-coking agents have been disclosed in the existing technology, their anti-coking effect is not ideal. Using spinning oil containing existing anti-coking agents to replace emulsion-type oil for direct oiling still cannot avoid the coking problem. This invention adds a new type of anti-coking agent to the spinning oil and controls its addition amount to ensure that there is no coking problem when using spinning oil to replace emulsion-type oil for direct oiling.

[0011] As a preferred technical solution:

[0012] As described above, the special oiling agent for high-speed polyester spinning that can be directly applied to crude oil has an anti-coking agent content of no more than 35 wt%; otherwise, it may have an adverse effect on the stability of the oiling agent.

[0013] The above-mentioned oiling agent for high-speed polyester spinning that can be directly applied to crude oil also contains 20-40 wt% of a smoothing agent, which is white oil and / or fatty acid ester.

[0014] The above-mentioned oiling agent for high-speed polyester spinning that can be directly applied to crude oil also contains 10-15 wt% of an antistatic agent, which is a potassium salt of fatty alcohol polyoxyethylene ether and / or a potassium salt of isomeric alcohol polyoxyethylene phosphate.

[0015] The above-mentioned oiling agent for high-speed polyester spinning that can be directly applied to crude oil also contains 5-15 wt% of a bridging agent, which is triethanolamine oleate salt.

[0016] The above-mentioned oiling agent for high-speed polyester spinning that can be directly applied to crude oil also contains 1-5 wt% emulsifier, which is dehydrated sorbitan fatty acid ester.

[0017] The above-mentioned oiling agent for high-speed polyester spinning that can be directly applied to crude oil also contains 1-5 wt% of a penetrant, which is a fatty alcohol polyoxyethylene ether.

[0018] The above-mentioned oiling agent for high-speed polyester spinning that can be directly applied to crude oil also contains 1-5 wt% of regulators and stabilizers, which are PEG400 oleic acid diester and / or modified silicone oil.

[0019] The above-mentioned oiling agent for high-speed polyester spinning that can be directly applied to crude oil also contains 1-2 wt% water.

[0020] As described above, a special oiling agent for high-speed polyester spinning that allows direct application of crude oil is used during the high-speed polyester spinning process. No coking occurs within 180℃. The spinning speed of high-speed polyester spinning is 4300~5000m / min, the stretching temperature is 80~95℃, and the setting temperature is 131~150℃.

[0021] The present invention also provides a method for preparing a special oiling agent for high-speed polyester spinning that can be directly applied to crude oil as described in any of the preceding claims. The components are added to a reaction vessel in proportion, stirred evenly, reacted at 40-45°C for 1-1.5 hours, and then sent to a sedimentation vessel for cooling. After standing for 15 minutes, the mixture is filtered to obtain the special oiling agent for high-speed polyester spinning that can be directly applied to crude oil.

[0022] Beneficial effects:

[0023] (1) The polyester high-speed spinning special oiling agent of the present invention, which can be directly oiled with crude oil, can be used for polyester spinning at a higher spinning rate and a lower hot roller temperature by directly oiling with crude oil, without the need to prepare it into an emulsion for use.

[0024] (2) The oil agent of the present invention uses FMEE as a surfactant to greatly improve the antioxidant and anti-coking properties of crude oil. Furthermore, the oil film formed by the oil agent of the present invention on the fiber surface is uniform and does not easily volatilize when passing through the hot roller. It also has less coking at the hot roller and good antistatic properties, which also reduces the difficulty of cleaning and maintaining the hot roller.

[0025] (3) The oil of the present invention has low water content, is not easy to separate or spoil, and does not contain preservatives, thereby avoiding the environmental hazards and the impact on human health caused by the high-temperature volatilization of preservatives and stabilizers during the spinning process.

[0026] (4) The oil of the present invention contains less water, thereby reducing water evaporation during the spinning process, reducing heat loss caused by water evaporation, and reducing spinning energy consumption.

[0027] (5) The anticoking agent used in this invention has low viscosity and density, strong chemical stability, small viscosity-temperature change, and good heat resistance. It has good stability in both acidic and alkaline liquids. Detailed Implementation

[0028] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0029] The following are the performance testing methods in each embodiment:

[0030] pH value (1% aqueous solution, 20°C): Water was added to the oil prepared in the following examples, with water accounting for 1% of the total mass of the solution, and the pH value was measured according to GB / T6368 at 20°C.

[0031] Acid value: Measured according to GB / T6365;

[0032] Kinematic viscosity (40°C): Measured at 40°C according to GB / T265 using the oils prepared in the following examples;

[0033] Kinematic viscosity (10% aqueous solution, 40°C): The viscosity was measured at 40°C according to GB / T265 when water was added to the oil prepared in the following examples, with water accounting for 10% of the total solution mass.

[0034] Electrical conductivity (10% aqueous solution): Water was added to the oil prepared in the following examples, with water accounting for 10% of the total solution mass, and the conductivity was measured according to GB / T11007.

[0035] Water content in crude oil: determined by the Karl Fischer method;

[0036] Tensile strength: The tensile strength was measured using an XQ-1A fiber tensile strength tester (XQ-1A type, Shanghai Xinxian Instrument Co., Ltd.) according to the national standard GB / T 14344-2022.

[0037] Elongation at break: The elongation at break was measured using an XQ-1A fiber tensile strength tester (XQ-1A type, Shanghai Xinxian Instrument Co., Ltd.) according to the national standard GB / T 14344-2022.

[0038] Boiling water shrinkage rate: The shrinkage rate was measured using a YG368 chemical fiber filament shrinkage tester (YG368 model, Changzhou Zhongxian Testing Instrument Co., Ltd.) according to the national standard GB / T6505-2001.

[0039] Oil content: The oil content was determined according to the national standard GB / T6504-2008 using a fiber grease extractor (YG981 type, Changzhou Shuanggudunda Electromechanical Technology Co., Ltd.).

[0040] The following are the manufacturers and brands of the raw materials involved in the examples:

[0041] Fatty acid methyl ester ethoxylate type double-terminated surfactant (fatty acid methyl ester ethoxylate): Manufacturer is Aladdin Reagent (Shanghai) Co., Ltd., brand name is 65218-33-7;

[0042] Polyethylene glycol laurate: Manufacturer is Aladdin Reagent (Shanghai) Co., Ltd., brand name is 9004-81-3;

[0043] Fatty alcohol polyoxyethylene ether potassium salt (fatty alcohol polyoxyethylene ether): Manufacturer is Shanghai Yuanye Biotechnology Co., Ltd., brand name is 68439-50-9;

[0044] Isomerized alcohol polyoxyethylene phosphate potassium salt (branched and straight-chain octadecyl phosphate potassium salt): Manufacturer is Huayuan.com, brand name is 97281-06-6;

[0045] PEG400 oleic acid diester (polyethylene glycol monooleate): Manufacturer: Aladdin Reagent (Shanghai) Co., Ltd., brand name: 9004-96-0;

[0046] Modified silicone oil (polyether modified silicone oil): Manufacturer is Shanghai Maclean Biochemical Technology Co., Ltd., brand name is P875564;

[0047] Fatty alcohol polyoxyethylene ether (penetrating agent JFC): Manufacturer is Aladdin Reagent (Shanghai) Co., Ltd., brand name is 68131-39-5;

[0048] White oil (liquid paraffin): Manufacturer: Shanghai Maclean Biochemical Technology Co., Ltd., Grade: 8042-47-5 (P815701);

[0049] Triethanolamine oleate (triethanolamine monooleate): Manufacturer: Shanghai Maclean Biochemical Technology Co., Ltd., Grade: 2717-15-9;

[0050] Sorbitol fatty acid ester: Span 60, manufactured by Aladdin Reagent (Shanghai) Co., Ltd., grade 1338-41-6;

[0051] Fatty acid ester: Polyglycerol fatty acid ester, manufactured by Shanghai Maclean Biochemical Technology Co., Ltd., brand name 67784-82-1.

[0052] Example 1

[0053] A method for preparing a special oiling agent for high-speed polyester spinning that can be directly applied to crude oil, the specific steps of which are as follows:

[0054] (1) Preparation of raw materials;

[0055] Fatty acid methyl ester ethoxylate type double-terminated surfactants;

[0056] Polyethylene glycol lauryl ester;

[0057] Smoothing agent: white oil;

[0058] Antistatic agent: Potassium salt of fatty alcohol polyoxyethylene ether;

[0059] Bundling agent: Triethanolamine oleate;

[0060] Emulsifier: Sorbitol fatty acid ester;

[0061] Penetrant JFC: Fatty alcohol polyoxyethylene ether;

[0062] Regulator / Stabilizer: PEG400 oleic acid diester;

[0063] water;

[0064] (2) Prepare anti-coking agents;

[0065] An anticoking agent is prepared by mixing a fatty acid methyl ester ethoxylate-type double-terminated surfactant and polyethylene glycol laurate in a mass ratio of 3:1.25.

[0066] (3) Add 20wt% anti-coking agent, 10wt% antistatic agent, 38wt% smoothing agent, 15wt% bundler, 5wt% emulsifier, 5wt% penetrant, 5wt% conditioning stabilizer and 2wt% water to the reaction vessel in sequence according to the proportion, stir evenly, react at 40℃ for 1h, send to the sedimentation vessel for cooling, let stand for 15min and filter to obtain a special oiling agent for high-speed polyester spinning that can be directly applied to crude oil.

[0067] The final oiling agent for high-speed polyester spinning, which can be directly applied to crude oil, is yellow and transparent, with a pH value (1% aqueous solution, 20℃) of 7, an acid value of 3.5 mg KOH / g, and a kinematic viscosity (40℃) of 25 mm. 2 / s, kinematic viscosity (10% aqueous solution, 40℃) is 1 mm. 2 / s, electrical conductivity (10% aqueous solution) is 500 μs / cm, and the water content in the crude oil is 0.5%.

[0068] In the process of high-speed polyester spinning, the special oiling agent for high-speed polyester spinning prepared above is used to directly apply crude oil. Then, the hot roller is tested and no coking phenomenon is generated within 180℃. The spinning speed is 4300m / min, the stretching temperature is 80℃, and the setting temperature is 131℃.

[0069] The final polyester FDY fiber has a linear density of 55 dtex, a breaking strength of 4 cN / dtex, a breaking elongation of 25%, a boiling water shrinkage of 6%, and an oil content of 0.7%.

[0070] Comparative Example 1

[0071] A method for preparing a special oiling agent for high-speed polyester spinning that can be directly applied to crude oil is basically the same as in Example 1, except that the anti-coking agent is methyl-terminated methyl allyl alcohol polyoxyethylene ether (Aladdin Reagent (Shanghai) Co., Ltd., 31497-33-3).

[0072] In the process of high-speed polyester spinning, the special oiling agent for high-speed polyester spinning prepared above is used to directly apply crude oil. Then, the hot roller is tested and a lot of coking occurs within 180℃.

[0073] Comparing Example 1 and Comparative Example 1, it can be seen that Comparative Example 1, which uses methyl-terminated methyl allyl alcohol polyoxyethylene ether as an anti-coking agent, exhibits a large amount of coking during the spinning process, while Example 1, which uses the oil agent of the present invention, does not produce any coking during the spinning process.

[0074] Comparative Example 2

[0075] A method for preparing a special oiling agent for high-speed polyester spinning that can be directly applied to crude oil is basically the same as in Example 1, except that the anti-coking agent is composed only of double-terminated surfactants of fatty acid methyl ester ethoxylate.

[0076] During the high-speed spinning process of polyester, the special oiling agent for high-speed spinning of polyester prepared above is used to directly apply crude oil. Then, the hot roller is tested and a small amount of coking occurs at 180°C.

[0077] Comparing Example 1 and Comparative Example 2, it can be seen that the oil prepared by the anticoking agent in Comparative Example 2, which is composed only of a double-terminated surfactant of fatty acid methyl ester ethoxylate, has lower anticoking properties than that in Example 1.

[0078] Example 2

[0079] A method for preparing a special oiling agent for high-speed polyester spinning that can be directly applied to crude oil, the specific steps of which are as follows:

[0080] (1) Preparation of raw materials;

[0081] Fatty acid methyl ester ethoxylate type double-terminated surfactants;

[0082] Polyethylene glycol lauryl ester;

[0083] Smoothing agent: white oil;

[0084] Antistatic agent: Potassium salt of fatty alcohol polyoxyethylene ether;

[0085] Bundling agent: Triethanolamine oleate;

[0086] Emulsifier: Sorbitol fatty acid ester;

[0087] Penetrant JFC: Fatty alcohol polyoxyethylene ether;

[0088] Regulator / Stabilizer: PEG400 oleic acid diester;

[0089] water;

[0090] (2) Prepare anti-coking agents;

[0091] An anticoking agent is prepared by mixing a fatty acid methyl ester ethoxylate-type double-terminated surfactant and polyethylene glycol laurate in a mass ratio of 4:1.25.

[0092] (3) Add 35wt% of anti-coking agent, 15wt% of antistatic agent, 40wt% of smoothing agent, 6wt% of slub agent, 1wt% of emulsifier, 1wt% of penetrant, 1wt% of conditioning stabilizer and 1wt% of water to the reaction vessel in sequence according to the proportion, stir evenly, react at 45℃ for 1.25h, send to the sedimentation vessel for cooling, let stand for 15min and filter to obtain a special oiling agent for high-speed polyester spinning that can be directly applied to crude oil.

[0093] The final oiling agent for high-speed polyester spinning, which can be directly applied to crude oil, is yellow and transparent, with a pH value (1% aqueous solution, 20℃) of 9.5, an acid value of 5 mgKOH / g, and a kinematic viscosity (40℃) of 29 mm. 2 / s, kinematic viscosity (10% aqueous solution, 40℃) is 1.27 mm. 2 / s, electrical conductivity (10% aqueous solution) is 700 μs / cm, and the water content in the crude oil is 0.75%.

[0094] In the process of high-speed polyester spinning, the special oiling agent for high-speed polyester spinning prepared above is used to directly apply crude oil. Then, the hot roller is tested and no coking phenomenon is generated within 180℃. The spinning speed is 5000m / min, the stretching temperature is 95℃, and the setting temperature is 150℃.

[0095] The final polyester FDY fiber has a linear density of 57 dtex, a breaking strength of 4.1 cN / dtex, a breaking elongation of 27%, a boiling water shrinkage of 6.7%, and an oil content of 0.5%.

[0096] Example 3

[0097] A method for preparing a special oiling agent for high-speed polyester spinning that can be directly applied to crude oil, the specific steps of which are as follows:

[0098] (1) Preparation of raw materials;

[0099] Fatty acid methyl ester ethoxylate type double-terminated surfactants;

[0100] Polyethylene glycol lauryl ester;

[0101] Smoothing agent: fatty acid ester;

[0102] Antistatic agent: Potassium salt of isomeric alcohol polyoxyethylene phosphate;

[0103] Bundling agent: Triethanolamine oleate;

[0104] Emulsifier: Sorbitol fatty acid ester;

[0105] Penetrant JFC: Fatty alcohol polyoxyethylene ether;

[0106] Conditioning and stabilizing agent: Modified silicone oil;

[0107] water;

[0108] (2) Prepare anti-coking agents;

[0109] An anti-coking agent is prepared by mixing a fatty acid methyl ester ethoxylate-type double-terminated surfactant and polyethylene glycol laurate in a mass ratio of 3:1.5.

[0110] (3) Add 31wt% anti-coking agent, 13wt% antistatic agent, 39wt% smoothing agent, 5wt% bridging agent, 2wt% emulsifier, 4wt% penetrant, 4.5wt% conditioning stabilizer and 1.5wt% water to the reaction vessel in sequence, stir evenly, react at 42℃ for 1.5h, then send to the sedimentation vessel for cooling, let stand for 15min and filter to obtain a special oiling agent for high-speed polyester spinning that can be directly applied to crude oil.

[0111] The final oiling agent for high-speed polyester spinning, which can be directly applied to crude oil, is yellow and transparent, with a pH value (1% aqueous solution, 20℃) of 8, an acid value of 6 mgKOH / g, and a kinematic viscosity (40℃) of 36 mm. 2 / s, kinematic viscosity (10% aqueous solution, 40℃) is 2mm. 2 / s, electrical conductivity (10% aqueous solution) is 681 μs / cm, and the water content in the crude oil is 1%.

[0112] In the process of high-speed polyester spinning, the special oiling agent for high-speed polyester spinning prepared above is used to directly apply crude oil. Then, the hot roller is tested and no coking phenomenon is generated within 180℃. The spinning speed is 4500m / min, the stretching temperature is 83℃, and the setting temperature is 132℃.

[0113] The final polyester FDY fiber has a linear density of 61 dtex, a breaking strength of 5 cN / dtex, a breaking elongation of 34%, a boiling water shrinkage of 7%, and an oil content of 0.9%.

[0114] Example 4

[0115] A method for preparing a special oiling agent for high-speed polyester spinning that can be directly applied to crude oil, the specific steps of which are as follows:

[0116] (1) Preparation of raw materials;

[0117] Fatty acid methyl ester ethoxylate type double-terminated surfactants;

[0118] Polyethylene glycol lauryl ester;

[0119] Smoothing agent: a mixture of white oil and fatty acid esters in a 1:1 mass ratio;

[0120] Antistatic agent: a mixture of potassium salt of fatty alcohol polyoxyethylene ether and potassium salt of isomeric alcohol polyoxyethylene phosphate in a mass ratio of 1:1;

[0121] Bundling agent: Triethanolamine oleate;

[0122] Emulsifier: Sorbitol fatty acid ester;

[0123] Penetrant JFC: Fatty alcohol polyoxyethylene ether;

[0124] Regulator / Stabilizer: A mixture of PEG400 oleic acid diester and modified silicone oil in a mass ratio of 1:1;

[0125] water;

[0126] (2) Prepare anti-coking agents;

[0127] An anti-coking agent is prepared by mixing a fatty acid methyl ester ethoxylate-type double-terminated surfactant and polyethylene glycol laurate in a mass ratio of 4:1.5.

[0128] (3) Add 35wt% anti-coking agent, 14wt% antistatic agent, 20wt% smoothing agent, 15wt% bundler, 5wt% emulsifier, 5wt% penetrant, 5wt% conditioning stabilizer and 1wt% water to the reaction vessel in sequence according to the proportion, stir evenly, react at 43℃ for 1.4h, send to the precipitation vessel for cooling, let stand for 15min and filter to obtain a special oiling agent for high-speed polyester spinning that can be directly applied to crude oil.

[0129] The final oiling agent for high-speed polyester spinning, which can be directly applied to crude oil, is yellow and transparent, with a pH value (1% aqueous solution, 20℃) of 9, an acid value of 7.5 mg KOH / g, and a kinematic viscosity (40℃) of 45 mm. 2 / s, kinematic viscosity (10% aqueous solution, 40℃) is 1.29 mm. 2 / s, electrical conductivity (10% aqueous solution) is 729 μs / cm, and the water content in crude oil is 0.66%.

[0130] In the process of high-speed polyester spinning, the special oiling agent for high-speed polyester spinning prepared above is used to directly apply crude oil. Then, the hot roller is tested and no coking phenomenon is generated within 180℃. The spinning speed is 4900m / min, the stretching temperature is 88℃, and the setting temperature is 143℃.

[0131] The final polyester FDY fiber has a linear density of 65 dtex, a breaking strength of 4.7 cN / dtex, a breaking elongation of 35%, a boiling water shrinkage of 6.3%, and an oil content of 1%.

[0132] The embodiments described above are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various modifications or alterations to the invention, and these equivalent forms fall within the protection scope of this invention.

Claims

1. A special oiling agent for high-speed polyester spinning that can be directly applied to crude oil, characterized in that it contains not less than 20 wt% anti-coking agent and 1-2 wt% water; the anti-coking agent is prepared in a mass ratio of 3-4: 1.25-1.5 fatty acid methyl ester ethoxylate double-terminated surfactant and polyethylene glycol laurate.

2. The oiling agent for high-speed spinning of polyester directly with crude oil according to claim 1, characterized in that, The content of the anti-coking agent in the oil agent is not more than 35wt%.

3. The oiling agent for high-speed spinning of polyester directly with crude oil according to claim 1, characterized in that, The oil agent further contains 20-40wt% of a smoothing agent, which is white oil and / or fatty acid ester.

4. The oiling agent for high-speed spinning of polyester directly with crude oil according to claim 1, characterized in that, The oil agent further contains 10-15wt% of an antistatic agent, which is fatty alcohol polyoxyethylene ether potassium salt and / or isomeric alcohol polyoxyethylene phosphate potassium salt.

5. The oiling agent for high-speed spinning of polyester directly with crude oil according to claim 1, characterized in that, The oil agent further contains 5-15wt% of a clustering agent, which is triethanolamine oleate.

6. The oiling agent for high-speed spinning of polyester directly with crude oil according to claim 1, characterized in that, The oil agent further contains 1-5wt% of an emulsifier, which is anhydrous trierucitol fatty acid ester.

7. The oiling agent for high-speed spinning of polyester directly with crude oil according to claim 1, characterized in that, The oil agent further contains 1-5wt% of a penetrating agent, which is fatty alcohol polyoxyethylene ether.

8. The oiling agent for high-speed spinning of polyester directly with crude oil according to claim 1, characterized in that, The oil agent further contains 1-5wt% of a conditioning stabilizer, which is PEG400 oleic acid double ester and / or modified silicone oil.

9. A process for preparing a direct oilable polyester high speed spinning special oiling agent as claimed in any one of claims 1 to 8, characterized in that, The components are added into a reaction kettle in proportion, stirred uniformly, and then sent to a precipitation kettle for cooling after reaction at 40-45°C for 1-1.5h. After standing for 15min, the polyester high-speed spinning special oil agent for direct oiling of crude oil is obtained by filtration.