Environment-friendly antistatic polyester DTY (Draw Textured Yarn) twisting oil agent and production process thereof

Abstract

The invention discloses an environment-friendly antistatic polyester DTY (Draw Textured Yarn) twisting oil agent and a production process thereof, and relates to the technical field of polyester DTY oil agents. The raw materials comprise the following components: 28-38 parts of soybean oil, 5-10 parts of straight-chain fatty alcohol-polyoxyethylene ether, 5-10 parts of branched-chain fatty alcohol-polyoxyethylene ether, 3-8 parts of a composite antistatic agent, 20-30 parts of water, 0.1-3 parts of a bundling agent, 0.5-2 parts of a boundary lubricant and 1-2 parts of an anti-splashing agent. The oil agent is treated by utilizing a microencapsulation technology, so that the oil agent exists in a microencapsulation form, and microencapsulation can effectively protect the oil agent from being influenced by an external environment, reduce oxidation and deterioration of the oil agent and reduce pollution to the environment, so that the lasting stability of the oil agent is improved, the oil agent is convenient to store, and the service life of the oil agent is prolonged; and meanwhile, the microencapsulated oil agent is more easily dispersed on the surface of the fiber during subsequent use to form a uniform lubricating film, so that the processability of the fiber and the product quality are improved.

Description

Technical Field

[0001] The invention relates to the technical field of polyester DTY oil preparation, in particular to an environmentally friendly antistatic polyester DTY twisting oil and a production process thereof. Background Art

[0002] Polyester DTY twisting oil is an auxiliary agent specially used in high-speed spinning and post-processing of polyester filaments. It is mainly used to improve the smoothness, antistatic and cohesiveness of the fiber. In the production process of polyester filaments, especially in the stretching and twisting process, the oil on the fiber will be lost due to the influence of high temperature and mechanical action. Therefore, in order to ensure the quality and performance of the fiber, it must be oiled after the stretching and twisting process, that is, polyester DTY oil is used.

[0003] The defects of the existing polyester DTY twisting oil preparation are: 1. Patent document CN114351452B discloses a biodegradable low residual oil polyester low-elastic yarn oil and a preparation method thereof. It mainly considers how to make the polyester low-elastic yarn oil biodegradable and harmless to the human body and the environment, but does not consider how to enhance the antistatic property of the oil while protecting the oil from the influence of the external environment; 2. Patent document CN114395921B discloses a method for preparing an antistatic polyester low-elastic yarn oil agent, which mainly considers how to effectively reduce electrostatic interference, improve the conductivity of the fiber, reduce charge generation and accumulation of textile charges, but does not consider how to improve the purity of the oil agent to improve the quality and performance of the oil agent; 3. Patent document CN115772808B discloses a penetrant for polyester DTY oil and a preparation method thereof, which mainly considers how to make the oil configuration more efficient and the dispersion more uniform, but does not consider how to improve the antistatic performance of the oil without affecting the environment; 4. The existing polyester DTY twisting oil has limited antistatic performance, stability and environmental protection, and it is difficult to protect the fiber from damage during fiber processing. Summary of the invention

[0004] The purpose of the present invention is to provide an environmentally friendly antistatic polyester DTY twisting oil and a production process thereof, so as to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the present invention provides the following technical solution: an environmentally friendly antistatic polyester DTY twisting oil, wherein the raw materials thereof include the following components by weight: 28 to 38 parts of soybean oil, 5 to 10 parts of linear fatty alcohol polyoxyethylene ether, 5 to 10 parts of branched fatty alcohol polyoxyethylene ether, 3 to 8 parts of composite antistatic agent, 20 to 30 parts of water, 0.1 to 3 parts of sizing agent, 0.5 to 2 parts of boundary lubricant, 1 to 2 parts of anti-splash agent, 0.1 to 2 parts of mildewproof agent, 0.3 to 1 parts of defoaming agent, 1 to 5 parts of antioxidant and 2 to 3 parts of viscosity improver; The polyester DTY twisting oil is prepared by mixing soybean oil, linear fatty alcohol polyoxyethylene ether, branched fatty alcohol polyoxyethylene ether, composite antistatic agent, water, sizing agent, boundary lubricant, anti-splash agent, mildew inhibitor, defoamer, antioxidant and viscosity improver in proportion, and then the polyester DTY twisting oil is prepared into a microencapsulated oil suspension by microencapsulation technology. Compared with the traditional polyester DTY oil, the prepared microencapsulated oil suspension has more excellent and lasting antistatic performance and better stability.

[0006] Preferably, the composite antistatic agent is prepared by mixing the antistatic agent DM-3748 and the potassium salt of n-butanol phosphate in a mass ratio of (3-5): (1-2).

[0007] Preferably, the antioxidant is a compound of D-phenylalanine and 1-fluoro-6-isopropylquinoline iodide in a mass ratio of (5-7): (4-6).

[0008] Preferably, the sizing agent is one or more of coconut oil fatty acid diethanolamide, sulfated castor oil, and oleic acid triethanolamine salt, and the boundary lubricant is one or more of polyether DB2-4000, polyether PRB1720, and lubricant W55000.

[0009] Preferably, the production process of the environmentally friendly antistatic polyester DTY twisting oil is as follows: Step S1: raw material preparation: firstly, the antistatic agent DM-3748 and the potassium salt of n-butanol phosphate are mixed in a ratio to prepare a composite antistatic agent, and then D-phenylalanine and 1-fluoro-6-isopropylquinoline iodide are mixed in a ratio to prepare an antioxidant; Step S2: Proportionate mixing: soybean oil, linear fatty alcohol polyoxyethylene ether, branched fatty alcohol polyoxyethylene ether, water, sizing agent, boundary lubricant, anti-splash agent, mildew inhibitor, defoamer, and the composite antistatic agent and antioxidant obtained in step S1 are sequentially added into a reaction kettle for proportion mixing to obtain a preliminary mixed oil; Step S3: post-treatment: cooling the preliminary mixed oil prepared in step S2, then adding a viscosity improver to adjust the viscosity of the oil, and then performing multi-stage filtration on the oil to remove impurities and unreacted substances in the oil to obtain a polyester DTY oil; Step S4: microencapsulation treatment: microencapsulation treatment is performed on the polyester DTY oil obtained in step S3 to obtain a final microencapsulation oil; Step S5: Packaging and storage: Packing the microcapsule oil suspension prepared in step S4, affixing a label with the product name, specification and production date, and temporarily storing it in a cool place; Step S6: Quality control: The prepared microcapsule oil suspension is subjected to a performance test according to the HG / T4434-2012 polyester low-elastic yarn oil standard.

[0010] Preferably, the step S1 further includes the following steps: Step S11: dissolving the potassium salt of n-butanol phosphate in water, stirring at a stirring speed of 30-50 rpm until completely dissolved, and then slowly adding the antistatic agent to the dissolved potassium salt of n-butanol phosphate solution, and stirring at a speed of 30-40 rpm during the addition process, and continuing to stir at a speed of 30-40 for 40-70 minutes after the addition is completed, to prepare a composite antistatic agent for standby use; Step S12: D-phenylalanine is completely dissolved in water to obtain a D-phenylalanine solution, and 1-fluoro-6-isopropylquinoline iodide is completely dissolved in ethanol to obtain a 1-fluoro-6-isopropylquinoline iodide solution, and then the D-phenylalanine solution and the 1-fluoro-6-isopropylquinoline iodide solution are mixed together in a mass ratio of (5-7): (4-6), wherein the stirring speed is 40-50 rpm, the stirring time is 30 min, and after stirring, the mixed solution is allowed to stand at 20-60° C. for 1 hour to obtain an antioxidant for standby use.

[0011] Preferably, the step S2 further includes the following steps: Step S21: adding soybean oil, linear fatty alcohol polyoxyethylene ether, branched fatty alcohol polyoxyethylene ether and water into a reaction kettle, stirring at a speed of 40-60 rpm for 30-45 min at room temperature, then adding an antioxidant, a sizing agent and a boundary lubricant into the reaction kettle, stirring at a speed of 50-70 rpm for 30 min; Step S22: The mixed solution of step S21 is then heated until the temperature reaches 75-80°C, and then an anti-splash agent, a mildew inhibitor, a defoaming agent and a composite antistatic agent are added to the reactor, and stirred at a speed of 60-80 rpm for 0.5-1.5 hours to obtain a preliminary mixed oil.

[0012] Preferably, the step S3 further includes the following steps: Step S31: cooling the obtained preliminary mixed oil under the condition of stirring speed of 80-90 rpm until the temperature of the preliminary mixed oil is cooled to room temperature, then slowly adding the viscosity improver into the reactor, and continuing stirring at the speed of 40-70 rpm for 30-45 minutes to prepare polyester DTY oil; Step S32: The polyester DTY oil obtained in step S31 is initially filtered using a filter screen built into the reactor, and then further filtered using a filter, wherein the pore size range of the filter is 50-150 nm.

[0013] Preferably, the step S4 further includes the following steps: Step S41: dissolving sodium alginate in water at 40-60° C. to form a wall material solution, then adding the polyester DTY oil obtained in step S3 to the wall material solution, and emulsifying by ultrasonic treatment to form a stable emulsion, wherein the stirring speed is 60-90 rpm, the stirring time is 20-40 min, and the volume ratio of the wall material solution to the polyester DTY oil is (1-2):(2-3); Step S42: The emulsion is then preliminarily dried by air suspension drying, and then a curing agent is added to the emulsion, and cured at 30-60° C. for 0.5-1 h, wherein the mass ratio of the emulsion to the curing agent is (30-40):(1-3); Step S43: dispersing the microcapsules solidified in step S42 in water and stirring at a speed of 30 rpm for 1-2 hours to form a suspension; Step S44: Then, a thickener is used to adjust the viscosity of the suspension formed in step S43 to obtain a microcapsule oil suspension.

[0014] Preferably, the mass ratio of the thickener to the suspension in step S44 is (0.5-3): (40-60).

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention utilizes microencapsulation technology to process the oil agent, so that the oil agent exists in a microencapsulated form. Microencapsulation can effectively protect the oil agent from the influence of the external environment, reduce the oxidation and deterioration of the oil agent, reduce the pollution to the environment, so as to improve the long-term stability of the oil agent, facilitate storage, and thus extend the service life of the oil agent. At the same time, the microencapsulated oil agent is more easily dispersed on the fiber surface during subsequent use to form a uniform lubricating film to improve the processing performance and product quality of the fiber. In addition, since the microencapsulation package can realize the slow release of the internal substance, the antistatic performance of the oil agent is enhanced to a certain extent, and the uniformity of oiling is improved.

[0016] 2. The present invention performs multi-stage filtration treatment on the oil agent, first removes large particle impurities in the oil agent, and then performs fine filtration. The impurities and unreacted substances in the oil agent are thoroughly removed through the multi-stage filtration steps, thereby improving the purity of the oil agent and, to a certain extent, improving the final quality and performance of the polyester DTY oil agent.

[0017] 3. The present invention prepares a composite antistatic agent by mixing DM-3748 and potassium n-butanol phosphate in a certain proportion, so that the prepared oil agent can improve the static electricity extraction and elimination capabilities in the fiber processing process and reduce charge accumulation. At the same time, since the amount of the prepared composite antistatic agent used in the preparation of the oil agent is small, it will not affect the environment, so that the prepared oil agent has improved antistatic performance on the basis of no burden on the environment.

[0018] 4. The present invention mixes soybean oil, linear fatty alcohol polyoxyethylene ether, branched fatty alcohol polyoxyethylene ether, water, sizing agent, boundary lubricant, anti-splash agent, mildew inhibitor, defoamer, composite antistatic agent and antioxidant in a certain order and proportion. The obtained oil has excellent antistatic performance, stability and environmental protection, and can effectively protect the fiber from damage during the spinning process, ensure uniform oiling and avoid oil splashing. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] The present invention provides an environmentally friendly antistatic polyester DTY twisting oil and a production process thereof. The production process of the environmentally friendly antistatic polyester DTY twisting oil is as follows: Step S1: Raw material preparation: first dissolve n-butanol potassium phosphate in water, stir at a stirring speed of 30-50rpm until completely dissolved, then slowly add the antistatic agent to the dissolved n-butanol potassium phosphate solution, and stir at a speed of 30-40rpm during the addition process, and continue to stir at a speed of 30-40 for 40-70min after the addition is completed to prepare a composite antistatic agent for use, wherein the mass ratio of the antistatic agent DM-3748 to the n-butanol potassium phosphate is (3-5): (1-2), and then D -phenylalanine is completely dissolved in water to obtain a D-phenylalanine solution, and 1-fluoro-6-isopropylquinoline iodide is completely dissolved in ethanol to obtain a 1-fluoro-6-isopropylquinoline iodide solution, and then the D-phenylalanine solution and the 1-fluoro-6-isopropylquinoline iodide solution are mixed together in a mass ratio of (5-7):(4-6), wherein the stirring speed is 40-50 rpm, the stirring time is 30 minutes, and after stirring, the mixed solution is allowed to stand at 20-60° C. for 1 hour to obtain an antioxidant for use; Step S2: Proportioned mixing: soybean oil, linear fatty alcohol polyoxyethylene ether, branched fatty alcohol polyoxyethylene ether and water are added to a reactor, stirred at a speed of 40-60 rpm for 30-45 min at room temperature, then antioxidant, sizing agent and boundary lubricant are added to the reactor, stirred at a speed of 50-70 rpm for 30 min, and then the mixed solution is heated until the temperature reaches 75-80 ° C, then anti-splash agent, mildew inhibitor, defoamer and composite antistatic agent are added to the reactor, and stirred at a speed of 60-80 rpm. The mixture is stirred at a temperature of 0.5-1.5 hours to obtain a preliminary mixed oil, wherein the mass ratio of soybean oil, linear fatty alcohol polyoxyethylene ether, branched fatty alcohol polyoxyethylene ether, composite antistatic agent, water, sizing agent, boundary lubricant, anti-splash agent, mildew inhibitor, defoamer, antioxidant and viscosity improver is (28-38): (5-10): (5-10): (3-8): (20-30): (0.1-3): (0.5-2): (1-2): (0.1-2): (0.3-1): (1-5): (2-3); Step S3: post-treatment: cooling the obtained preliminary mixed oil under the condition of stirring speed of 80-90rpm until the temperature of the preliminary mixed oil is cooled to room temperature, then slowly adding the viscosity improver into the reactor, and continuing stirring for 30-45min under the condition of speed of 40-70rpm to prepare polyester DTY oil, and then using the built-in filter screen in the reactor to preliminarily filter the obtained polyester DTY oil, and then using a filter to further perform secondary filtration, wherein the pore size range of the filter is 50-150nm; Step S4: microencapsulation treatment: sodium alginate is dissolved in water at 40-60°C to form a wall material solution, and then the prepared polyester DTY oil is added to the wall material solution and emulsified by ultrasonic treatment to form a stable emulsion, wherein the stirring speed is 60-90rpm, the stirring time is 20-40min, and the volume ratio of the wall material solution to the polyester DTY oil is (1-2): (2-3). Then, the emulsion is preliminarily dried by air suspension drying, and then a curing agent is added to the emulsion, and cured at 30-60°C for 0.5-1h, wherein the mass ratio of the emulsion to the curing agent is (30-40): (1-3). Then, the cured microcapsules are dispersed in water and stirred at a speed of 30rpm for 1-2h to form a suspension, and then a thickener is used to adjust the viscosity of the formed suspension to obtain a microcapsule oil suspension, wherein the mass ratio of the thickener to the suspension is (0.5-3): (40-60); Step S5: Packaging and storage: Packing the microcapsule oil suspension prepared in step S4, affixing a label with the product name, specification and production date, and temporarily storing it in a cool place; Step S6: Quality control: The prepared microcapsule oil suspension is subjected to a performance test according to the HG / T4434-2012 polyester low-elastic yarn oil standard.

[0021] Further, the value of step S1-2 is changed, and step S3-6 is performed to perform appearance test, stability test, antistatic test and biodegradability test on the prepared microcapsule oil. The appearance test is to take an appropriate amount of oil sample and place it in a transparent container for observation to obtain the color, transparency and impurity situation of the oil. The stability test is to place the oil sample in an environment of 80°C and 0°C for 48 hours, respectively, observe the appearance of the oil and test the volatility loss, and give a comprehensive stability evaluation. The antistatic test is to test the oil by using an antistatic tester. The biodegradability test can prepare biodegradability test equipment and microbial strains, and mix the oil sample with the microbial strains, place it in an environment of 20°C for 48 hours, and detect the degradation of the oil on the 0th, 3rd and 7th days after culturing to give a comprehensive anti-degradability evaluation.

[0022] Embodiment 1: Step S1: raw material preparation: first dissolve n-butanol potassium phosphate in water, stir at a stirring speed of 45 rpm until completely dissolved, then slowly add an antistatic agent to the dissolved n-butanol potassium phosphate solution, and stir at a speed of 35 rpm during the addition process, and continue to stir at a speed of 35 for 50 minutes after the addition is completed to prepare a composite antistatic agent for standby use, wherein the mass ratio of the antistatic agent DM-3748 to the n-butanol potassium phosphate is 3:1, then completely dissolve D-phenylalanine in water to obtain a D-phenylalanine solution, and at the same time completely dissolve 1-fluoro-6-isopropylquinoline iodide in ethanol to obtain a 1-fluoro-6-isopropylquinoline iodide solution, then mix the D-phenylalanine solution and the 1-fluoro-6-isopropylquinoline iodide solution in a mass ratio of 6:5, wherein the stirring speed is 40 rpm, the stirring time is 30 minutes, and after stirring, the mixed solution is allowed to stand at 35° C. for 1 hour to obtain an antioxidant for standby use; Step S2: Proportional mixing: soybean oil, linear fatty alcohol polyoxyethylene ether, branched fatty alcohol polyoxyethylene ether and water are added to a reactor, stirred at a speed of 40-60rpm for 30-45min at room temperature, then antioxidant, sizing agent and boundary lubricant are added to the reactor, stirred at a speed of 50-70rpm for 30min, and then the mixed solution is heated until the temperature reaches 75°C, then anti-splash agent, mildew inhibitor, defoamer and composite antistatic agent are added to the reactor, and stirred at a speed of 60-80rpm for 0.5-1.5h to obtain a preliminary mixed oil, wherein the mass ratio of soybean oil, linear fatty alcohol polyoxyethylene ether, branched fatty alcohol polyoxyethylene ether, composite antistatic agent, water, sizing agent, boundary lubricant, anti-splash agent, mildew inhibitor, defoamer, antioxidant and viscosity improver is 30:7:5:4:25:1:1:1.5:1:0.5:3:2.

[0023] Further, appearance: transparent microcapsule suspension, stability evaluation: good, antistatic evaluation: good, anti-degradation evaluation: very good.

[0024] Embodiment 2: Step S1: raw material preparation: first dissolve n-butanol potassium phosphate in water, stir at a stirring speed of 45 rpm until completely dissolved, then slowly add an antistatic agent to the dissolved n-butanol potassium phosphate solution, and stir at a speed of 35 rpm during the addition process, and continue to stir at a speed of 35 for 50 minutes after the addition is completed to prepare a composite antistatic agent for standby use, wherein the mass ratio of the antistatic agent DM-3748 to the n-butanol potassium phosphate is 3:2, then completely dissolve D-phenylalanine in water to obtain a D-phenylalanine solution, and at the same time completely dissolve 1-fluoro-6-isopropylquinoline iodide in ethanol to obtain a 1-fluoro-6-isopropylquinoline iodide solution, then mix the D-phenylalanine solution and the 1-fluoro-6-isopropylquinoline iodide solution in a mass ratio of 6:5, wherein the stirring speed is 40 rpm, the stirring time is 30 minutes, and after stirring, the mixed solution is allowed to stand at 35° C. for 1 hour to obtain an antioxidant for standby use; Step S2: Proportional mixing: soybean oil, linear fatty alcohol polyoxyethylene ether, branched fatty alcohol polyoxyethylene ether and water are added to a reactor, stirred at a speed of 40-60rpm for 30-45min at room temperature, then antioxidant, sizing agent and boundary lubricant are added to the reactor, stirred at a speed of 50-70rpm for 30min, and then the mixed solution is heated until the temperature reaches 75°C, then anti-splash agent, mildew inhibitor, defoamer and composite antistatic agent are added to the reactor, and stirred at a speed of 60-80rpm for 0.5-1.5h to obtain a preliminary mixed oil, wherein the mass ratio of soybean oil, linear fatty alcohol polyoxyethylene ether, branched fatty alcohol polyoxyethylene ether, composite antistatic agent, water, sizing agent, boundary lubricant, anti-splash agent, mildew inhibitor, defoamer, antioxidant and viscosity improver is 35:6:5:6:25:1:1:1.5:1:0.5:3:2.

[0025] Further, appearance: transparent microcapsule suspension, stability evaluation: very good, antistatic evaluation: very good, anti-degradation evaluation: excellent.

[0026] Embodiment three: Step S1: raw material preparation: first dissolve n-butanol potassium phosphate in water, stir at a stirring speed of 45 rpm until completely dissolved, then slowly add an antistatic agent to the dissolved n-butanol potassium phosphate solution, and stir at a speed of 35 rpm during the addition process, and continue to stir at a speed of 35 for 50 minutes after the addition is completed to prepare a composite antistatic agent for standby use, wherein the mass ratio of the antistatic agent DM-3748 to the n-butanol potassium phosphate is 4:1, then completely dissolve D-phenylalanine in water to obtain a D-phenylalanine solution, and at the same time completely dissolve 1-fluoro-6-isopropylquinoline iodide in ethanol to obtain a 1-fluoro-6-isopropylquinoline iodide solution, then mix the D-phenylalanine solution and the 1-fluoro-6-isopropylquinoline iodide solution in a mass ratio of 6:5, wherein the stirring speed is 40 rpm, the stirring time is 30 minutes, and after stirring, the mixed solution is allowed to stand at 35° C. for 1 hour to obtain an antioxidant for standby use; Step S2: Proportional mixing: soybean oil, linear fatty alcohol polyoxyethylene ether, branched fatty alcohol polyoxyethylene ether and water are added to a reactor, stirred at a speed of 40-60rpm for 30-45min at room temperature, then antioxidant, sizing agent and boundary lubricant are added to the reactor, stirred at a speed of 50-70rpm for 30min, and then the mixed solution is heated until the temperature reaches 75°C, then anti-splash agent, mildew inhibitor, defoamer and composite antistatic agent are added to the reactor, and stirred at a speed of 60-80rpm for 0.5-1.5h to obtain a preliminary mixed oil, wherein the mass ratio of soybean oil, linear fatty alcohol polyoxyethylene ether, branched fatty alcohol polyoxyethylene ether, composite antistatic agent, water, sizing agent, boundary lubricant, anti-splash agent, mildew inhibitor, defoamer, antioxidant and viscosity improver is 35:7:6:7:25:1:1:1.5:1:0.5:4:3.

[0027] Further, appearance: transparent microcapsule suspension, stability evaluation: good, antistatic evaluation: good, anti-degradation evaluation: good.

[0028] Comparative Example: The polyester DTY oil sold on the market was used as a comparative example. The appearance of the oil was a transparent oily liquid. The stability evaluation was average. The antistatic property evaluation was average. The anti-degradation property evaluation was average.

[0029] The performance test results of microcapsule oil suspension are as follows:

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. An environmentally friendly antistatic polyester DTY twisting oil, characterized by: The raw materials include the following components by weight: 28-38 parts of soybean oil, 5-10 parts of linear fatty alcohol polyoxyethylene ether, 5-10 parts of branched fatty alcohol polyoxyethylene ether, 3-8 parts of composite antistatic agent, 20-30 parts of water, 0.1-3 parts of sizing agent, 0.5-2 parts of boundary lubricant, 1-2 parts of anti-splash agent, 0.1-2 parts of mildewproof agent, 0.3-1 parts of defoaming agent, 1-5 parts of antioxidant and 2-3 parts of viscosity improver; The polyester DTY twisting oil is prepared by mixing soybean oil, linear fatty alcohol polyoxyethylene ether, branched fatty alcohol polyoxyethylene ether, composite antistatic agent, water, sizing agent, boundary lubricant, anti-splash agent, mildew inhibitor, defoamer, antioxidant and viscosity improver in proportion, and then the polyester DTY twisting oil is prepared into a microencapsulated oil suspension by microencapsulation technology. Compared with the traditional polyester DTY oil, the prepared microencapsulated oil suspension has more excellent and lasting antistatic performance and better stability.

2. The environmentally friendly antistatic polyester DTY twisting oil according to claim 1, characterized in that: The composite antistatic agent is prepared by mixing the antistatic agent DM-3748 and the potassium salt of n-butanol phosphate in a mass ratio of (3-5): (1-2).

3. The environmentally friendly antistatic polyester DTY twisting oil according to claim 1, characterized in that: The antioxidant is prepared by mixing D-phenylalanine and 1-fluoro-6-isopropylquinoline iodide in a mass ratio of (5-7): (4-6).

4. The environmentally friendly antistatic polyester DTY twisting oil according to claim 1, characterized in that: The sizing agent is one or more of coconut oil fatty acid diethanolamide, sulfated castor oil, and oleic acid triethanolamine salt, and the boundary lubricant is one or more of polyether DB2-4000, polyether PRB1720, and lubricant W55000.

5. A production process of an environmentally friendly antistatic polyester DTY twisting oil, applicable to an environmentally friendly antistatic polyester DTY twisting oil as claimed in any one of claims 1 to 4, characterized in that: The production process of the environmentally friendly antistatic polyester DTY twisting oil is as follows: Step S1: raw material preparation: firstly, the antistatic agent DM-3748 and the potassium salt of n-butanol phosphate are mixed in a ratio to prepare a composite antistatic agent, and then D-phenylalanine and 1-fluoro-6-isopropylquinoline iodide are mixed in a ratio to prepare an antioxidant; Step S2: Proportionate mixing: soybean oil, linear fatty alcohol polyoxyethylene ether, branched fatty alcohol polyoxyethylene ether, water, sizing agent, boundary lubricant, anti-splash agent, mildew inhibitor, defoamer, and the composite antistatic agent and antioxidant obtained in step S1 are sequentially added into a reaction kettle for proportion mixing to obtain a preliminary mixed oil; Step S3: post-treatment: cooling the preliminary mixed oil prepared in step S2, then adding a viscosity improver to adjust the viscosity of the oil, and then performing multi-stage filtration on the oil to remove impurities and unreacted substances in the oil to obtain polyester DTY oil; Step S4: microencapsulation treatment: microencapsulation treatment is performed on the polyester DTY oil obtained in step S3 to obtain a final microencapsulation oil; Step S5: Packaging and storage: Packing the microcapsule oil suspension prepared in step S4, affixing a label with the product name, specification and production date, and temporarily storing it in a cool place; Step S6: Quality control: The prepared microcapsule oil suspension is subjected to a performance test according to the HG / T4434-2012 polyester low-elastic yarn oil standard.

6. The production process of an environmentally friendly antistatic polyester DTY twisting oil according to claim 5, characterized in that: The step S1 further includes the following steps: Step S11: dissolving the potassium salt of n-butanol phosphate in water, stirring at a stirring speed of 30-50 rpm until completely dissolved, and then slowly adding the antistatic agent to the dissolved potassium salt of n-butanol phosphate solution, and stirring at a speed of 30-40 rpm during the addition process, and continuing to stir at a speed of 30-40 for 40-70 minutes after the addition is completed, to prepare a composite antistatic agent for standby use; Step S12: D-phenylalanine is completely dissolved in water to obtain a D-phenylalanine solution, and 1-fluoro-6-isopropylquinoline iodide is completely dissolved in ethanol to obtain a 1-fluoro-6-isopropylquinoline iodide solution, and then the D-phenylalanine solution and the 1-fluoro-6-isopropylquinoline iodide solution are mixed together in a mass ratio of (5-7): (4-6), wherein the stirring speed is 40-50 rpm, the stirring time is 30 min, and after stirring, the mixed solution is allowed to stand at 20-60° C. for 1 hour to obtain an antioxidant for standby use.

7. The production process of an environmentally friendly antistatic polyester DTY twisting oil according to claim 5 is characterized by: The step S2 further includes the following steps: Step S21: adding soybean oil, linear fatty alcohol polyoxyethylene ether, branched fatty alcohol polyoxyethylene ether and water into a reaction kettle, stirring at a speed of 40-60 rpm for 30-45 min at room temperature, then adding an antioxidant, a sizing agent and a boundary lubricant into the reaction kettle, stirring at a speed of 50-70 rpm for 30 min; Step S22: The mixed solution of step S21 is then heated until the temperature reaches 75-80°C, and then an anti-splash agent, a mildew inhibitor, a defoaming agent and a composite antistatic agent are added to the reactor, and stirred at a speed of 60-80 rpm for 0.5-1.5 hours to obtain a preliminary mixed oil.

8. The production process of an environmentally friendly antistatic polyester DTY twisting oil according to claim 5 is characterized by: The step S3 further includes the following steps: Step S31: cooling the obtained preliminary mixed oil under the condition of stirring speed of 80-90 rpm until the temperature of the preliminary mixed oil is cooled to room temperature, then slowly adding the viscosity improver into the reactor, and continuing stirring at the speed of 40-70 rpm for 30-45 minutes to prepare polyester DTY oil; Step S32: The polyester DTY oil obtained in step S31 is initially filtered using a filter screen built into the reactor, and then further filtered using a filter, wherein the pore size range of the filter is 50-150 nm.

9. The production process of an environmentally friendly antistatic polyester DTY twisting oil according to claim 5 is characterized by: The step S4 further includes the following steps: Step S41: dissolving sodium alginate in water at 40-60° C. to form a wall material solution, then adding the polyester DTY oil obtained in step S3 to the wall material solution, and emulsifying by ultrasonic treatment to form a stable emulsion, wherein the stirring speed is 60-90 rpm, the stirring time is 20-40 min, and the volume ratio of the wall material solution to the polyester DTY oil is (1-2):(2-3); Step S42: The emulsion is then preliminarily dried by air suspension drying, and then a curing agent is added to the emulsion, and cured at 30-60° C. for 0.5-1 h, wherein the mass ratio of the emulsion to the curing agent is (30-40):(1-3); Step S43: dispersing the microcapsules solidified in step S42 in water and stirring at a speed of 30 rpm for 1-2 hours to form a suspension; Step S44: Then, a thickener is used to adjust the viscosity of the suspension formed in step S43 to obtain a microcapsule oil suspension.

10. The production process of an environmentally friendly antistatic polyester DTY twisting oil according to claim 9, characterized in that: The mass ratio of the thickener to the suspension in step S44 is (0.5-3): (40-60).

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