Anti-splashing DTY (Draw Textured Yarn) oiling agent with high bundling performance

Abstract

The invention discloses an anti-splashing DTY (draw textured yarn) oiling agent with high bundling performance, which belongs to the field of chemical fiber processing aids, and comprises a main lubricant, a bundling enhancer, an anti-splashing stabilizer, a surface spreading agent, an adhesion regulator, a nano cross-linking agent, a temperature control response aid and deionized water, the bundling enhancer is a polyether siloxane block polymer, the anti-splashing stabilizer is high-branched-chain polymethylhydrosiloxane, all the components synergistically construct a nanoscale uniform emulsion system, the particle size is 80-120 nm, the viscosity is 20-40 mPa.s (25 DEG C), the pH is 6.5-7.5, the solid content is 15%-25%, a stable and uniform oil film can be formed at the spinning rate of 3000 m / min or above, the bundling property and the anti-splashing capacity of the tow are remarkably improved, and the anti-splashing oil film can be applied to the field of spinning. The method is suitable for a high-speed, fine-denier and low-residue chemical fiber processing technology. The device has the beneficial effects that the bundling stability of fiber tows is remarkably improved, and the oil splashing phenomenon is effectively inhibited.

Description

Technical Field

[0001] The invention relates to the field of chemical fiber processing aids, and more particularly to a high-bundling performance anti-splash DTY oil agent. Background Art

[0002] With the trend toward higher speeds and finer deniers in the chemical fiber industry, DTY (drawn textured yarn) finish technology continues to advance. Traditional finishes have gradually evolved from single lubricating formulations to multifunctional compounds that offer bundle control, splash prevention, safety, and environmental protection. Early DTY finishes primarily relied on polyether and silicone lubricants, focusing on reducing fiber friction. Mid-life developments saw the introduction of nonionic surfactants and antistatic agents to improve fiber compatibility and winding stability. In recent years, bundle control and oil film stability have become key design considerations for DTY finishes, with the industry generally adopting multi-component emulsification structures and temperature-controlled stabilization systems to accommodate higher-speed and more delicate spinning environments.

[0003] However, the existing technology still has many shortcomings: first, the oil film is easy to break under high-speed tension shear, resulting in an increase in the bundle angle and divergence of the bundles; second, the highly volatile components are easy to splash, polluting the equipment and increasing the loss of the oil; third, the system has poor emulsification stability and is prone to stratification or aggregation during long-term storage; fourth, lubrication failure is frequent in complex spinning paths, resulting in a high breakage rate and large tension fluctuations. The above problems limit the application effect of DTY oil in ultra-fine denier, high-speed, and high-consistency fiber forming processes. Therefore, there is an urgent need to develop a new DTY oil that integrates bundle strengthening, anti-splash control and system stability to meet the high standards of modern spinning production. Summary of the Invention

[0004] The present invention aims to provide a high-bundling, splash-resistant DTY lubricant to address the following issues raised in the background art: first, the oil film easily breaks under high-speed tension shear, resulting in an increased bundle angle and diverging strands; second, highly volatile components easily splash, contaminating equipment and increasing lubricant loss; third, the system suffers from poor emulsification stability, prone to stratification or aggregation during long-term storage; and fourth, lubrication failure is frequent in complex spinning paths, resulting in high breakage rates and large tension fluctuations. These issues limit the effectiveness of DTY lubricants in ultrafine denier, high-speed, and high-consistency fiber forming processes.

[0005] Technical Solution A high-bundling performance anti-splash DTY oil agent is composed of the following components in parts by weight: 30-60 parts of the main lubricant, which is a dicarboxyl modified polyether ester with 2 or more terminal carboxyl groups, a molecular weight of 1500-3500, and a hydrophilic-hydrophobic balance coefficient of 10-14; 5-15 parts of clustering enhancer, which is a branched block polyether siloxane with polyether groups and siloxane units in the main chain, with a silicon content of 12% to 20% and a polyether segment chain length of not less than C12; 8-20 parts of anti-splash stabilizer, which is a hydroxyl-terminated polymethyl hydrogen siloxane with a branch density of not less than 0.15 mol / 100g; 2 to 10 parts of a surface extender, which is a sodium salt of a C10 to C14 linear sulfosuccinate, having a hydrophilic-hydrophobic balance value of 7 to 10 and containing no aromatic ring structure; 2 to 6 parts of an adhesion regulator, which is a segmented polyetheramine having a terminal amino group and a repeating unit ratio of a hydrophilic segment to a hydrophobic segment of 1:2 to 1:3; 0.5-3 parts of nano cross-linking agent, which is a low molecular weight organic cross-linking agent containing epoxy groups; 0.5-2 parts of temperature control response additive, which is a vinyl ether copolymer with thermochromic properties; Deionized water is added to 100 parts, and the system does not contain alcohol and mineral oil solvents; The high-bundling performance and anti-splash DTY oil agent is an emulsion with a particle size of 80 to 120 nanometers, a viscosity of 20 to 40 mPa·s at 25°C, a pH value of 6.5 to 7.5, and a solid content of 15% to 25%. At a spinning speed of more than 3000 meters per minute, the oil film formed has uniform thickness and long-lasting adhesion, and has high bundling performance and anti-splash capabilities.

[0006] Preferably, the dicarboxyl-modified polyether ester has an ester content of 20 to 40 mole percent, a molecular weight distribution index not higher than 1.8, and a wetting angle of 40° to 60° formed on polyester yarn in a static wetting test.

[0007] Preferably, the branched block polyether siloxane has polydimethylsiloxane segments at both ends and a polyether block at the center, wherein the mass ratio of ethylene oxide to propylene oxide is 1.5 to 2.5, and the siloxane segment has branching nodes of five or more members.

[0008] Preferably, the degree of polymerization of the anti-splash stabilizer is 60 to 120, the hydroxyl end-capping content is 1.5 to 3.5 mass percent, and uniform fine droplets are formed in the spray test without microparticle aggregation.

[0009] Preferably, the water-oil interfacial tension of the surface extender is less than 15 mN / m, the fiber separation angle is less than 3°, and the lubricating film shrinkage rate is no more than 5%.

[0010] Preferably, the nano-crosslinking agent promotes the oil film to form a cross-linked network structure on a microscopic scale, and does not break above 350 Kelvin.

[0011] Preferably, the temperature-controlled responsive auxiliary agent exhibits a reversible hydrophilicity regulating function under normal temperature and high temperature conditions.

[0012] Preferably, the continuous length of the oil film formed by the high-bundling performance anti-splash DTY oil in the actual spinning process is greater than or equal to 15 cm, the oil film breakage rate on the fiber surface is not higher than 2 times per kilometer, the bundling stability is improved by 15% to 20%, and the splash residue is reduced by more than 30%.

[0013] Preferably, the emulsion particle size distribution peak width of the high-bunching performance anti-splash DTY oil agent does not exceed ±20 nanometers, the absolute value of the Zeta potential is greater than or equal to 30 millivolts, and no phase separation occurs within three months of standing, showing excellent emulsion stability.

[0014] Compared with the prior art, the advantages of the present invention are: (1) By introducing a low-polarity polymer bundling enhancer, the surface adhesion between fibers is enhanced, and the yarn bundling angle is reduced to 2.1°~2.6°, which is much better than conventional oils (above 4°), thereby improving the uniformity of the finished product and the winding stability.

[0015] (2) The use of a two-component adhesion stabilizer and a low-volatile interface regulator allows the oil to maintain oil film continuity in a high-speed spinning environment, reducing splash residue by more than 60%, effectively reducing equipment pollution and operating energy consumption.

[0016] (3) Construct a thermally responsive composite emulsified structure to enhance the emulsion stability and adhesion durability of the oil under high temperature and high shear conditions, and reduce the problems of oil film breakage and oil desorption.

[0017] (4) Compounding non-silicone-based polymer lubricating components with low-friction modified esters can reduce the friction factor by more than 15%, reduce the tension fluctuation range by 30%, reduce the breakage rate, and improve the stability of the spinning process.

[0018] (5) Introducing polymer cross-linking agents and shear stabilizing factors to achieve adaptation to complex environments such as high temperature, long cycle, and strong tension path, and expand the application range of DTY oil.

[0019] (6) Construct a multi-phase synergistic stable emulsion structure, without obvious phase separation, particle aggregation or oil floating under high-speed operation and high-temperature storage conditions, and maintain the long-term stability of the oil system.

[0020] (7) By selecting low VOC (volatile organic compound) components and non-ionic surfactants, the risk of volatilization during production and use is reduced, the burden of subsequent cleaning is reduced, and environmental friendliness is improved.

[0021] Table Description Table 1 is a table of experimental data of the comparative experiment on the clustering performance and anti-splashing ability of the embodiment and the comparative example; Table 2 is a table of experimental data of the comparative experiment on emulsion stability and high temperature shear resistance of the examples and comparative examples; Table 3 is a table of experimental data of comparative experiments on lubrication effect and friction control performance of the embodiment and the comparative example. DETAILED DESCRIPTION

[0022] Example Examples 1-4 Example 1. A high-bundling performance anti-splash DTY oil agent is composed of the following components in parts by weight: 30-60 parts of the main lubricant, which is a dicarboxyl modified polyether ester with 2 or more terminal carboxyl groups, a molecular weight of 1500-3500, and a hydrophilic-hydrophobic balance coefficient of 10-14; 5-15 parts of clustering enhancer, which is a branched block polyether siloxane with polyether groups and siloxane units in the main chain, with a silicon content of 12% to 20% and a polyether segment chain length of not less than C12; 8-20 parts of anti-splash stabilizer, which is a hydroxyl-terminated polymethyl hydrogen siloxane with a branch density of not less than 0.15 mol / 100g; 2 to 10 parts of a surface extender, which is a sodium salt of a C10 to C14 linear sulfosuccinate, having a hydrophilic-hydrophobic balance value of 7 to 10 and containing no aromatic ring structure; 2 to 6 parts of an adhesion regulator, which is a segmented polyetheramine having a terminal amino group and a repeating unit ratio of a hydrophilic segment to a hydrophobic segment of 1:2 to 1:3; 0.5-3 parts of nano cross-linking agent, which is a low molecular weight organic cross-linking agent containing epoxy groups; 0.5-2 parts of temperature control response additive, which is a vinyl ether copolymer with thermochromic properties; Deionized water is added to 100 parts, and the system does not contain alcohol and mineral oil solvents; A high-bundling performance and anti-splash DTY oil agent is an emulsion with a particle size of 80 to 120 nanometers, a viscosity of 20 to 40 mPa·s at 25°C, a pH value of 6.5 to 7.5, and a solid content of 15% to 25%. At a spinning speed of more than 3000 meters per minute, the oil film formed has uniform thickness and long-lasting adhesion, and has high bundling performance and anti-splash capabilities.

[0023] The ester group content of the dicarboxyl modified polyether ester is 20 to 40 mole percent, the molecular weight distribution index is not higher than 1.8, and the wetting angle formed on the polyester yarn in a static wetting test is 40° to 60°.

[0024] The branched block polyether siloxane has polydimethylsiloxane segments at both ends and a polyether block at the center, wherein the mass ratio of ethylene oxide to propylene oxide is 1.5-2.5, and the siloxane segment has more than five-membered branching nodes.

[0025] The anti-splash stabilizer has a polymerization degree of 60 to 120, a hydroxyl end-capping content of 1.5 to 3.5 mass percent, and forms uniformly refined droplets without microparticle aggregation in a spray test.

[0026] The water-oil interfacial tension of the surface extender is less than 15 mN / m, the fiber separation angle is less than 3°, and the lubricating film shrinkage rate is no more than 5%.

[0027] Nano-crosslinkers promote the formation of a cross-linked network structure in the oil film at the microscopic scale, which does not break above 350 Kelvin.

[0028] The temperature-responsive additive exhibits reversible hydrophilicity regulation function under room temperature and high temperature conditions.

[0029] A high-bundling performance anti-splash DTY oil agent forms an oil film with a continuous length greater than or equal to 15 cm during the actual spinning process, the oil film breakage rate on the fiber surface is no more than 2 times per kilometer, the bundling stability is improved by 15% to 20%, and the splash residue is reduced by more than 30%.

[0030] The peak width of the emulsion particle size distribution of a high-bunching performance anti-splash DTY oil agent does not exceed ±20 nanometers, the absolute value of the Zeta potential is greater than or equal to 30 millivolts, and no phase separation occurs within three months of standing, showing excellent emulsion stability.

[0031] Example 2. The difference from Example 1 is that the following ratio is adopted: Main lubricant (dicarboxyl modified polyether ester): 45 parts (molecular weight 2500, HLB value 12); Clustering enhancer (branched polyether siloxane): 10 parts (Si content 15%, polyether chain segment is C12~C14); Anti-splash stabilizer (hydroxyl-terminated polymethyl hydrogen siloxane): 15 parts (hydroxyl-terminated content 2.2wt%, degree of polymerization 85); Surface extender (C12 sulfosuccinate sodium salt): 6 parts (interfacial tension 12.3 mN / m); Adhesion regulator (block polyetheramine): 4 parts (hydrophilic / hydrophobic repeat unit ratio 1:2.5); Nano cross-linking agent (epoxy type): 1.2 parts; Temperature control response additive (vinyl ether copolymer): 1 part; Deionized water was added to make up to 100 parts.

[0032] Emulsion particle size: 98 nm; viscosity: 32 mPa·s; Zeta potential: −36 mV; Test results: The beam angle is <2.5°, the oil film breakage rate on the fiber surface is 1.3 times / km; the oil film continuity length reaches 18 cm, and the splash residue is reduced by about 34% compared with comparative example 1.

[0033] Example 3. Based on Example 2, the following parameters were adjusted: Main lubricant: 50 parts (HLB value 13, ester content 36 mol%); Cluster enhancer: 12 parts (mass ratio of ethylene oxide to propylene oxide is 2.1); Anti-splash stabilizer: 10 parts (degree of polymerization 70); Surface extender: 8 parts (interfacial tension 13.5 mN / m); Adhesion regulator: 3 parts; Nano cross-linking agent: 2.5 parts (isocyanate type); Temperature control response additive: 0.8 parts; Deionized water was added to make up to 100 parts.

[0034] Emulsion particle size: 92 nm; viscosity: 36 mPa·s; Zeta potential: −33 mV; High-speed spinning results: oil film shrinkage is 4.2%, bundle stability is improved to 19.5%, and fiber separation angle is controlled within 2.1°.

[0035] Example 4. Based on Example 2, different adhesion modifiers and surface extenders are selected. The other components are as follows: Main lubricant: 40 parts; Cluster enhancer: 6 parts; Anti-splash stabilizer: 12 parts; Surface extender: 5 parts (HLB value 9); Adhesion regulator: 3.5 parts (hydroxyl-terminated type); Nano cross-linking agent: 1.5 parts; Temperature control response additive: 1.2 parts; Deionized water was added to make up to 100 parts.

[0036] Emulsion particle size: 110 nm; Zeta potential: −40 mV; no delamination after 90 days of standing.

[0037] Actual measurement: Oil film adhesion error <±4%, splash suppression rate increased to 35%.

[0038] Comparative Example Comparative Examples 1-3 Comparative Example 1. (No cross-linking agent used) The ratio is as follows: Primary lubricant (PEG / PPG block copolymer): 55 parts; Cluster enhancer: 10 parts; Anti-splash stabilizer: 15 parts; Surface extender: 6 parts; Adhesion regulator: 4 parts; Deionized water was added to make up to 100 parts.

[0039] No nano cross-linker and temperature-controlled responsive additive were added.

[0040] Results: The particle size increased to 145 nm, the Zeta potential was −18 mV, the oil film shrinkage increased to 9%, the bunching angle was large to 4.5° during high-speed spinning, splashing was obvious, and the stability was poor.

[0041] Comparative Example 2. (Traditional lubricant + no enhancer) The ratio is as follows: Main lubricant (monohydroxy polyether): 50 parts; Anti-splash stabilizer: 10 parts; Surface extender: 4 parts; Adhesion regulator: 3 parts; Deionized water was added to make up to 100 parts.

[0042] No clustering enhancer, nano cross-linker or temperature control agent is added.

[0043] Results: The emulsion particle size was 150nm, the continuous length of the oil film was only 6cm, the splash rate was high, the proportion of dry oil area on the fiber surface was as high as 20%, and the bundling ability was unstable.

[0044] Comparative Example 3. (Failure of particle size control) Based on Example 2, the emulsification conditions were adjusted to low shear + stirring at room temperature, and the other components remained unchanged.

[0045] Results: The particle size distribution was concentrated at 180 nm, and the Zeta potential was −12 mV. After 30 days of standing, slight stratification occurred, the local thickness of the oil film was uneven, the bundling effect during the spinning process fluctuated greatly, and the splash suppression ability decreased.

[0046] In order to determine the bundling performance and anti-splashing capability of the embodiment and the comparative example, the following comparative experiment was designed. The experimental steps are as follows: Preparation of experimental items DTY oil sample: Example 2, Example 3, Example 4, Comparative Example 1, Comparative Example 2, and Comparative Example 3 were each prepared in 500 mL.

[0047] Fiber raw material: polyethylene terephthalate (PET) fiber, monofilament fineness is 0.33 dtex, and the fiber roll weight for each oil test is 1.2 kg.

[0048] Equipment: High-speed spinning machine (spinning speed can reach 3500m / min) Automatic tension and winding control system High-speed camera microscope system (for measuring beam angle and splash diffusion trajectory) Infrared thermal imager (detecting oil film distribution) Oil collecting cover + weighing balance (for measuring splash residue) Other auxiliary equipment: constant temperature water bath (to maintain the oil at 25°C) Spraying device (high-pressure precision pump spray coating) The specific experimental steps are as follows: S1. Oil treatment and fiber lubrication The temperature of each oil sample was kept constant at 25°C and coated on the corresponding PET tow using the same high-pressure spray device. The amount of oil used was kept at 1.2 wt%.

[0049] S2. High-speed spinning simulation Using a uniformly set high-speed spinning unit (spinning speed set at 3200m / min), the oiled yarn bundles were spun and wound in sequence. Each sample was run continuously for 30 minutes, and the tension fluctuations and yarn stability were recorded during the process.

[0050] S3. Oil film continuity test An infrared thermal imager was used to scan a 30 cm area on the yarn surface, measure the length of the continuous coverage section of the oil film, and record the number of oil film breakage points.

[0051] S4. Beam Angle Measurement At 2 cm from the spinning outlet, the fiber bifurcation angle was captured with the help of a high-speed microscope camera system, and the fiber divergence angle presented in the main view was counted (the average value was taken after 5 tests for each sample).

[0052] S5. Splash test The spinning outlet area was placed in a high-transmittance hood, and the mass of the oil adhering to the hood wall was measured by weighing after 30 minutes of spinning (the average value of 3 tests for each oil was taken), and the splash residue ratio was converted.

[0053] The experimental data are shown in Table 1: Table 1 Experimental conclusion analysis As can be seen from the data, the DTY oil of the present invention (Examples 2 to 4) is significantly better than the traditional oil (Comparative Examples 1 to 3) in a high-speed spinning environment: Oil film integrity: The continuous length of the oil film in the examples is generally above 16.8 cm, and the breakage points are significantly reduced, indicating that the oil film has strong adhesion and high stability; Bunching performance: The bundling angles of the examples were all controlled between 2.1° and 2.6°, while those of the control group were generally greater than 4°, indicating that the present invention can effectively restrain fiber bifurcation and improve the cohesion of the tow. Anti-splashing effect: The splashing residual rate of the embodiment is controlled within 6.5 mg / m3, which is reduced by more than 66% compared with the comparative example 2, indicating that the atomized particle size is stable and not easy to splash.

[0054] In order to determine the emulsion stability and high temperature shear resistance of the examples and comparative examples, the following comparative experiment was designed. The experimental steps are as follows: Preparation of experimental items DTY oil sample: Example 2, Example 3, Example 4, Comparative Example 1, Comparative Example 2, Comparative Example 3, 200 mL of each.

[0055] Experimental equipment: Constant temperature heating stirrer (supports high-speed shear at 80°C) Centrifugal lamination testing machine (8000rpm) Laser particle size analyzer (particle size change monitoring) Zeta potential meter (surface charge stability measurement) UV-VIS spectrophotometer (emulsion transmittance evaluation) Optical microscope (to observe particle aggregation) Glass test tubes, polytetrafluoroethylene sealed sample bottles and other auxiliary equipment The specific experimental steps are as follows: S1. Thermal shearing treatment Each oil sample was placed in a constant temperature stirrer and stirred at 80°C and a shear rate of 3000 rpm for 60 minutes to simulate the shear disturbance during high-speed extrusion or winding at high temperature.

[0056] S2. Particle size and Zeta potential test After the treatment is completed, the mixture is cooled to room temperature and samples are taken to detect the change in particle size (compared with the initial value) and Zeta potential to determine the charge stability of the system and the redistribution of particles.

[0057] S3. Centrifugal stability test Take 10 mL of the hot sheared oil sample, place it in a centrifuge, and centrifuge it at 8000 rpm for 15 minutes to observe whether phase separation, precipitation or floating oil occurs.

[0058] S4. Light transmittance test (indirect judgment of flocculation) Each group of samples was diluted to 2% solid content, and the transmittance at a wavelength of 600 nm was measured using UV-VIS. A decrease in transmittance indicated that particle aggregation had occurred in the system.

[0059] S5. Microscope Observation Samples were taken before and after thermal shearing, and the aggregation or flocculation of oil droplets was observed under an optical microscope (1000×), and the changes in microstructure were recorded.

[0060] The experimental data are shown in Table 2: Table 2 Experimental conclusion analysis From the experimental data and observation results, we can know that: The emulsion particle size stability is excellent: the particle size variation of the oil agent in the embodiment of the present invention is controlled within ±6%, indicating that the emulsion structure is stable under high temperature and high shear environment without agglomeration or chain breakage.

[0061] Slight change in Zeta potential: The potential fluctuation of the sample of the present invention after thermal shearing is less than ±3mV, the system has good charge stability, and the electrostatic repulsion between oil droplets is effective.

[0062] No phase separation: All examples showed no stratification or precipitation after centrifugation, indicating that the oil system was highly uniform and had strong anti-centrifugal distribution stability.

[0063] The transmittance remains good: the transmittance of the sample of the present invention changes by less than 6%, indicating that the system is still in a uniform emulsified state and no obvious flocculation occurs.

[0064] Microscopic observation verifies the structural integrity: the particle size distribution of the oil droplets in the example samples is still uniform, without obvious agglomeration, while the oil droplet fusion or agglomeration structure can be observed in the comparative examples.

[0065] In order to determine the lubrication effect and friction control performance of the embodiment and the comparative example, the following comparative experiment was designed, and the experimental steps are as follows: Preparation of experimental items Oil samples: Example 2, Example 3, Example 4, Comparative Example 1, Comparative Example 2, Comparative Example 3, 500 mL of each were prepared.

[0066] Fiber raw material: PETDTY fiber precursor (0.33 dtex × 384f), 1 kg was used for each sample.

[0067] Experimental equipment: Friction factor test platform (ASTM D3107 standard tension method) Multi-point tension online monitoring system (installed on the godet and stretching position) High-speed spinning machine (operating speed set to 2800m / min) Online broken ends statistics module Environmental conditions: temperature 23±1℃, humidity 60±3%, no wind disturbance indoors The specific experimental steps are as follows: S1. Oiling treatment Use a high-pressure atomizing nozzle to evenly spray each oil agent onto the surface of the corresponding PET raw yarn at a dosage of 1.0 wt%, and let it stand for 3 hours to ensure sufficient adsorption.

[0068] S2. Friction factor determination Using a standard friction coefficient test platform, set the input tension to 50 cN and the speed to 300 m / min, and record the dynamic friction coefficient (μ) of each sample on the ceramic guide wire holder. Each group was measured five times and the average was taken.

[0069] S3. Tension fluctuation monitoring The yarn bundle treated with oil is passed through the guide wheel to the stretching section, and the tension fluctuation range of the yarn bundle during operation is recorded by the tension sensor with a sampling frequency of 10 Hz and continuous recording for 5 minutes.

[0070] S4. Continuous spinning operation The same high-speed spinning equipment was used to run each group of samples, with a spinning speed of 2800 m / min and a running time of 60 min, and the number of end breakages during the entire process was recorded.

[0071] The experimental data are shown in Table 3: Table 3 Experimental conclusion analysis From the perspective of friction control: the friction coefficient is significantly reduced: the μ value of the oil in the embodiment is concentrated in the range of 0.1180.126, which is lower than the 0.1460.168 of the comparative oil, indicating that the compound lubrication system in the present invention has better surface lubrication performance; Effective control of tension fluctuations: The oil agent of the present invention maintains a stable oil film and controls tension fluctuations within ±4cN during the spinning process, which is much better than the comparative example, reducing the risk of breakage caused by friction mutations. The breakage rate is significantly reduced: the number of breakages in the embodiment is reduced to about 1 per kilometer, while the number of breakages under traditional oils is as high as 4 to 5 times, which proves that its lubrication durability is strong and effectively delays fiber wear and sudden breakage.

[0072] The above shows and describes the basic principles, main features and advantages of the present invention; those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected; the scope of protection claimed in the present invention is defined by the attached claims and their equivalents.

Claims

1. A high-bunching performance anti-splash DTY oil agent, characterized in that: The high-bundling performance anti-splash DTY oil agent is composed of the following components in parts by weight: 30-60 parts of the main lubricant, which is a dicarboxyl modified polyether ester with 2 or more terminal carboxyl groups, a molecular weight of 1500-3500, and a hydrophilic-hydrophobic balance coefficient of 10-14; 5-15 parts of clustering enhancer, which is a branched block polyether siloxane with polyether groups and siloxane units in the main chain, with a silicon content of 12% to 20% and a polyether segment chain length of not less than C12; 8-20 parts of anti-splash stabilizer, which is a hydroxyl-terminated polymethyl hydrogen siloxane with a branch density of not less than 0.15 mol / 100g; 2 to 10 parts of a surface extender, which is a sodium salt of a C10 to C14 linear sulfosuccinate, having a hydrophilic-hydrophobic balance value of 7 to 10 and containing no aromatic ring structure; 2 to 6 parts of an adhesion regulator, which is a segmented polyetheramine having a terminal amino group and a repeating unit ratio of a hydrophilic segment to a hydrophobic segment of 1:2 to 1:3; 0.5-3 parts of nano cross-linking agent, which is a low molecular weight organic cross-linking agent containing epoxy groups; 0.5-2 parts of temperature control response additive, which is a vinyl ether copolymer with thermochromic properties; Deionized water is added to 100 parts, and the system does not contain alcohol and mineral oil solvents; The high-bundling performance and anti-splash DTY oil agent is an emulsion with a particle size of 80 to 120 nanometers, a viscosity of 20 to 40 mPa·s at 25°C, a pH value of 6.5 to 7.5, and a solid content of 15% to 25%. At a spinning speed of more than 3000 meters per minute, the oil film formed has uniform thickness and long-lasting adhesion, and has high bundling performance and anti-splash capabilities.

2. The high-bunching performance anti-splash DTY oil according to claim 1, characterized in that: The dicarboxyl modified polyether ester has an ester content of 20 to 40 mole percent, a molecular weight distribution index not higher than 1.8, and a wetting angle of 40° to 60° formed on polyester yarn in a static wetting test.

3. The high-bunching performance anti-splash DTY oil according to claim 1, characterized in that: The branched block polyether siloxane has polydimethylsiloxane segments at both ends and a polyether block at the center, wherein the mass ratio of ethylene oxide to propylene oxide is 1.5-2.5, and the siloxane segment has more than five branching nodes.

4. The high-bunching performance anti-splash DTY oil according to claim 1, characterized in that: The anti-splash stabilizer has a polymerization degree of 60 to 120, a hydroxyl end-capping content of 1.5 to 3.5 mass percent, and forms uniformly refined droplets without microparticle aggregation in a spray test.

5. The high-bunching performance anti-splash DTY oil according to claim 1, characterized in that: The water-oil interfacial tension of the surface extender is less than 15 mN / m, the fiber separation angle is less than 3°, and the lubricating film shrinkage rate is no more than 5%.

6. The high-bunching performance anti-splash DTY oil according to claim 1, characterized in that: The nano-crosslinking agent promotes the oil film to form a cross-linked network structure on a microscopic scale, and no breakage occurs above 350 Kelvin.

7. The high-bunching performance anti-splash DTY oil according to claim 1, characterized in that: The temperature-controlled responsive auxiliary agent exhibits a reversible hydrophilicity adjustment function under normal temperature and high temperature conditions.

8. The high-bunching anti-splash DTY oil according to claim 1, characterized in that: The high-bundling performance anti-splash DTY oil agent forms an oil film with a continuous length greater than or equal to 15 cm during the actual spinning process, the oil film breakage rate on the fiber surface is no more than 2 times per kilometer, the bundling stability is improved by 15% to 20%, and the splash residue is reduced by more than 30%.

9. The high-bunching performance anti-splash DTY oil according to claim 1, characterized in that: The high-bundling performance anti-splash DTY oil agent has an emulsion particle size distribution peak width of no more than ±20 nanometers, a Zeta potential absolute value of greater than or equal to 30 millivolts, and no phase separation occurs within three months of standing, showing excellent emulsion stability.

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