KR102576568B1 - Spinning oil composition for polyester full draw yarns, Spinning oil using the same and Manufacturing method thereof - Google Patents

Abstract

The present invention relates to a spinning emulsion composition and a spinning emulsion manufactured using the same. To be more specific, when manufacturing by spinning polyester industrial yarn (synthetic fiber), it is applied to a high-temperature and high-speed spinning process to achieve bundling properties. It relates to a spinning emulsion composition that can reduce fluff or single yarn by improving the fluttering of yarns, a spinning emulsion containing the same, and a method for manufacturing the same.

Description

Spinning emulsion composition for polyester-based FDY, spinning emulsion using the same and manufacturing method thereof {Spinning oil composition for polyester full draw yarns, Spinning oil using the same and Manufacturing method thereof}

The present invention is a spinning emulsion that is more suitable for new spinning equipment using a low-energy method, which is different from existing equipment. Specifically, the spinning emulsion solution is diluted with water to a concentration of 10 to 20% by volume, rather than the existing method of diluting it to a concentration of 85 to 20% by volume. It relates to a spinning emulsion for polyester-based FDY that can reduce energy costs and dilution effort by treating polyester-based FDY yarn with a spinning emulsion with a high purity of 95% by volume and a method for manufacturing the same.

In general, polyester-based FDY is melted at 250 ~ 300℃ and passed through a spinneret to develop yarn properties through stretching and heat treatment using stepwise speed difference (fine speed 4000 ~ 6000m/min) and temperature in filament state. It is manufactured by winding and winding, and for the quality of the yarn and process efficiency, a spinning emulsion suitable for each spinning machine is selected and used. The spinning machine and the spinning emulsion are closely related, and the yarn manufacturing method is treated as a secret by the manufacturer.

Meanwhile, German and Japanese products are mostly used for spinning machines and are leading to changes in machinery. Recent changes in clothing yarn spinning machines have improved the number of windings compared to past production (from 24 ends to 32 ends), improving productivity by more than 30% and reducing yarn bundles. Energy costs are reduced by changing the method of repeatedly wrapping the material on a high-temperature heat stretching roller several times to hanging it on a lower temperature heat stretching roller than before, thereby reducing energy costs. In terms of the work environment, there are two multiple workers on the 2nd and 1st floors. Instead of working in batches, the equipment was layered so that only one person could manage it. The weight of fully rolled yarn (cheese) was lowered to reduce worker fatigue, and the working environment and labor costs were reduced by introducing automation of the movement and storage of manufactured yarn. It is a trend.

Since existing spinning emulsions are not suitable for these spinners, a new spinning emulsion with the following requirements is needed.

Instead of the conventional method of diluting oil with water at a concentration of 10 to 20% by volume, a high-purity undiluted solution of 85 to 95% by volume is used. The emulsion can be used as is, or added at a high concentration by adding a small amount of water or a non-toxic diluent. Use it the way you use it.

This application method addresses the problems that occur in the existing method of diluting water at a low concentration, such as supply of additional energy to remove water or loss of yarn heat transfer efficiency, limitations in the composition of spinning emulsion components for dilution in water, and moisture in and out. It has the advantage of eliminating changes in the physical properties of the yarn due to . In addition, the method of supplying the raw solution of the spinning emulsion requires adhesion to fibers close to the conventional method of diluting it with water at a low concentration of 10 to 20%, and therefore requires appropriate viscosity of the raw solution and excellent permeability. In addition, lubrication, antistatic properties, and bundling properties, which are common characteristics of polyester-based spinning emulsions, are also required to be higher than those of previous methods.

Spinning oil requires a lubricant that reduces or controls the friction that occurs when fibers contact and run on the surface of textile devices made of various materials, including metal. The new spinner has a compact device configuration for high space utilization, yarn and hot-stretched rollers. It must have high lubrication efficiency due to the conditions of elongation and tension/running to develop the yarn properties suitable for the single hanger. Antistatic agents are needed to reduce static electricity generated from contact with various machinery and the fiber surface. Furthermore, a new method that increases the generation of static electricity due to the low water pick-up% of the yarn due to the method of oiling the fiber as is in the raw solution. Problems arise, and to solve these problems, a bundling agent is needed to ensure uniform aggregate properties of yarns made of multiple single fibers.

In addition, the raw solution viscosity (measured at 25°C) of existing spinning emulsions diluted to a low concentration in water usually required physical properties of about 80 to 100 cP, but in the case of spinning emulsions used without dilution in water in new facilities, Because high viscosity makes it difficult to control the amount of oil supplied to the yarn and to treat the yarn surface uniformly, there is a need to lower or adjust the viscosity of the raw solution itself.

Korean Patent Publication No. 10-2004-0061347 (July 7, 2004) Korean Patent Publication No. 1993-0005935 (June 29, 1993)

The present inventors have carefully studied to solve the problems of the existing spinning emulsion, and as a result, it is suitable for a new spinning emulsion using a low-energy method, is suitable for use when manufacturing polyester-based FDY, and significantly reduces the occurrence of thread breakage in the spun FDY. The aim is to provide a spinning emulsion for polyester-based FDY that has an optimal composition and composition ratio that can reduce the production environment and prevent deterioration of the production environment due to low smoke emission.

The spinning emulsion composition for polyester-based FDY (Full Draw Yarns) of the present invention to solve the above problems includes an ester compound obtained by polymerizing a linear aliphatic monohydric alcohol and a linear unsaturated fatty acid having 10 to 22 carbon atoms; mineral oil; Phosphoric acid ester salt; nonionic surfactants; anionic surfactant; additive; and solvent;

In addition, the spinning oil agent for polyester-based FDY of the present invention includes a mixture of the above spinning oil compositions.

In addition, the present invention relates to a method for producing a spinning emulsion for polyester-based FDY, comprising the following steps: preparing each of the spinning emulsion compositions; and a second step of mixing the composition to produce a spinning emulsion with a viscosity of 55 to 65 cP at 25°C.

In addition, the present invention relates to a method for manufacturing polyester-based FDY. When performing a spinning process by melting polyester chips for manufacturing polyester-based FDY, the spinning emulsion used in performing the spinning process may be the spinning emulsion described above. You can.

By applying the spinning emulsion prepared from the spinning emulsion composition of the present invention to a high-speed, high-temperature spinning process for manufacturing polyester-based FDY, the cohesion, lubricity, and antistatic properties are improved to significantly reduce thread breakage and fluff generation. By doing so, the quality of FDY can be improved and excellent ancestral rite performance can be achieved. In addition, the spinning emulsion of the present invention is used at a high purity with a concentration of 85 to 95% by volume, so it is possible to prevent the installation of additional equipment to remove water due to the existing use of large amounts of water and the increase in production costs due to energy supply. It can prevent changes in the physical properties of yarn due to loss of heat transfer efficiency and moisture in and out.

Hereinafter, the present invention will be described in more detail.

The composition used for manufacturing the spinning emulsion for polyester-based FDY of the present invention includes an ester compound; mineral oil; Phosphoric acid ester salt; nonionic surfactants; anionic surfactant; additive; and solvent;

The ester compound acts as a leveling agent and improves the strength of the oil film in spinning emulsions. It is a compound that does not have a polyoxyalkylene group in the molecule, and includes a polymer obtained by polymerizing a linear aliphatic monohydric alcohol and a linear unsaturated fatty acid. do.

The polymer is polymerized by polymerizing the linear aliphatic monohydric alcohol and the linear unsaturated fatty acid at a molar ratio of 1:1.0 to 1.2, more preferably the linear aliphatic monohydric alcohol and the linear unsaturated fatty acid at a molar ratio of 1:1.00 to 1.12. It is a polymer made by At this time, if the molar ratio of the linear unsaturated fatty acid is less than 1, there may be a problem of increased peculiar odor due to unreacted alcohol, and if the molar ratio of the linear unsaturated fatty acid exceeds 1.2, there may be a problem of reduced heat resistance.

As the linear aliphatic monohydric alcohol used in the synthesis of the ester compound, it is recommended to use a linear alcohol having 10 to 16 carbon atoms, preferably a linear alcohol having 12 to 14 carbon atoms. At this time, when ground alcohol or straight-chain alcohol with less than 10 carbon atoms is used as the alcohol, smoothness may decrease, resulting in FTY thread breakage, or increased fluffing of the manufactured FDY.

As the linear unsaturated fatty acid used in the synthesis of the ester compound, it is preferable to use a linear unsaturated fatty acid having 10 to 22 carbon atoms, preferably a linear unsaturated fatty acid having 12 to 20 carbon atoms, and more preferably myristolenic acid ( 1 selected from myristoleic acid, palmitoleic acid, oleic acid, elaidic acid, linolenic acid, eicosenoic acid and heneicosanoic acid It may include more than one type, and more preferably, it may include one or more types selected from palmitolenic acid, oleic acid, and ellidic acid. At this time, if the linear unsaturated fatty acid with a carbon number of less than 12 is used, sufficient oil film strength may not be secured and a yarn breakage problem may occur, and if the carbon number of the linear unsaturated fatty acid exceeds 22, the effect of improving smoothness may be reduced.

Also, if saturated fatty acids are used as fatty acids, heat resistance may be insufficient, so it is better to synthesize ester compounds using unsaturated fatty acids. In addition, if hydroxy fatty acid is included as the fatty acid, the treatment agent's role as a leveling agent is insufficient, so it is preferable that hydroxy fatty acid is not included.

The ester compound preferably has an acid value of 0.3 to 5.0 KOH mg/g and a weight average molecular weight of 400 to 1000, and preferably has an acid value of 0.4 to 4.8 KOH mg/g and a weight average molecular weight of 420 to 800. More preferably, the acid value is 0.4 to 4.5 KOH mg/g and the weight average molecular weight is 430 to 700. If the acid value is too high, such as 5.0, a large amount of smoke or a bad odor is generated during heat treatment, which worsens the use environment. There is. In addition, if the weight average molecular weight is less than 400, the oil film strength may be insufficient, fluff may increase, or fuming may increase during heat treatment, and if the weight average molecular weight exceeds 800, the viscosity of the spinning emulsion may be too high, resulting in increased water usage. There may be problems that need to be done, and the quality in the FDY weaving or knitting process may be inferior, so it is recommended to use it within the above range.

In addition, the content of the ester compound in the composition of the present invention is the remaining amount of 100% by weight excluding the amount of composition used as described below.

Next, the mineral oil in the composition serves as a leveling agent, and is used with a paraffin content of 70% by weight or more, preferably with a paraffin content of 72 to 85% by weight, and more preferably with a paraffin content of 80 to 85% by weight. This is advantageous in terms of compatibility with ester compounds. Additionally, the weight average molecular weight of the mineral oil is 200 or more, preferably 200 to 700, and more preferably 300 to 500.

It is better to use a low viscosity mineral oil, preferably one with a viscosity (kinematic viscosity) of 15 to 35 cst at 40°C.

In addition, the content of mineral oil in the composition may be 10 to 20% by weight, preferably 10 to 16% by weight, and more preferably 12 to 15% by weight of the total weight of the composition. At this time, if the mineral oil content is less than 10% by weight, the lubricating effect may be insufficient due to high friction during the process, and if the mineral oil content exceeds 20% by weight, the viscosity of the manufactured spinning emulsion may significantly increase due to excessive use. Therefore, it is recommended to use it within the above range.

Next, the phosphoric acid ester salt in the composition plays a role in preventing and minimizing static electricity generated by friction between FDY and metal by suppressing the generation of static electricity resulting from the spinning emulsion of the present invention minimizing the use of water. 0.1 to 0.4 parts by weight of reaction catalyst, preferably 0.1 to 0.3 parts by weight, is mixed with 100 parts by weight of a mixture containing alcohol and phosphorus pentoxide in a molar ratio of 1:0.25 to 0.50, preferably in a molar ratio of 1:0.28 to 0.40. Afterwards, it may contain an ester reaction product prepared by reacting at 70 to 85°C for 18 to 24 hours. The reaction catalyst may include hypophosphorous acid, etc.

The alkyl alcohol may include one or more selected from octyl alcohol, nonyl alcohol, decyl alcohol, undecyl alcohol, lauryl alcohol, tridecyl alcohol, and myristyl alcohol.

In addition, the phosphoric acid ester salt content in the composition may be 0.5 to 5.0% by weight, preferably 0.8 to 4.0% by weight, and more preferably 0.8 to 2.5% by weight of the total weight of the composition. At this time, if the phosphoric acid ester salt content is less than 0.5% by weight, the antistatic effect due to its use may be minimal, and if the phosphoric acid ester salt content exceeds 5.0% by weight, it may affect the viscosity of the product and impede workability. This may occur, so it is best to use it within the above range.

Next, the nonionic surfactant in the composition serves to increase the focus of the spun FTY and the emulsibility of the spinning emulsion, and includes higher alcohol EO (ethylene oxide) adducts, fatty acid esters of PEG (polyethylene glycol), and caster. It may contain one or more types selected from oil EO (ethylene oxide) adducts, and preferably includes higher alcohol EO adducts, fatty acid esters of polyalkylene glycol, and castor oil EO adducts in a ratio of 1:1.5 to 3.0:0.5 to 1:0.5. It is recommended to use a mixture of higher alcohol EO adduct, fatty acid ester of PEG, and castor oil EO adduct at a weight ratio of 1.5, more preferably at a weight ratio of 1:1.8 to 2.5:0.8 to 1.2.

Preferred examples of the higher alcohol EO adduct include polyoxyalkylene polyhydric alcohol ether, glycerin mono oleate or sorbitan trioleate, and preferred examples of the fatty acid ester of the polyalkylene glycol include polyethylene glycol (PEG). There are fatty acid esters, polyoxyalkylene castor oil ether, etc.

In addition, the content of the nonionic surfactant in the composition may be 10 to 25% by weight, preferably 15.0 to 23.0% by weight, and more preferably 16.0 to 20.0% by weight of the total weight of the composition. At this time, if the nonionic surfactant content is less than 10% by weight, the oil film strength decreases and fluff may increase, and if it is used in excess of 25% by weight, the fluff of FTY increases due to insufficient smoothness due to excessive use. Since there may be , it is recommended to use it within the above range.

Next, the anionic surfactant in the composition plays an antistatic role in suppressing the generation of static electricity. If it is not used with water or in a small amount, the effect of suppressing static electricity caused by moisture is reduced, thereby further improving the antistatic effect. To achieve this, the use of an appropriate anionic surfactant is necessary. Any general anionic surfactant used in the art can be used, and a sulfonate-based anionic surfactant is preferably used.

Preferred examples of sulfonate-based anionic surfactants include alkyl sulfonate, aryl sulfonate, polystyrene sulfonate, naphthyl sulfonate, formalin condensate of naphthalene sulfonate with an average degree of condensation of 4 to 10, and each of these. One or more types selected from derivatives may be used, and preferably one or more types selected from sodium tridecyl sulfonate and sodium dodecyl benzene sulfonate may be used.

In addition, products that can commercially purchase the formalin condensate of the naphthalene sulfonate include Lunox 1000C (Toho Chemical Industry Co., Ltd.), FT-500 (Denka Industry Co., Ltd.), Disper-TL (Meisei Chemical Industry Co., Ltd.), and Verin FM-45 (Daiichi Kogyo Pharmaceutical Co., Ltd.), Lavelin FH-P (Daiichi Kogyo Pharmaceutical Co., Ltd.), Lavelin F-45 (Daiichi Kogyo Pharmaceutical Co., Ltd.), Demol N (Kao Co., Ltd.), Demol RN (Kao Co., Ltd.) ), Demol T (Kao Co., Ltd.), Polity 100K (Lion Co., Ltd.), etc.

The content of the anionic surfactant in the composition may be 0.1 to 10% by weight, preferably 1.0 to 8.0% by weight, and more preferably 3.5 to 6.5% by weight of the total weight of the composition. At this time, if the anionic surfactant content is less than 0.1% by weight, the antistatic effect may be insufficient, and if it is used in excess of 10.0% by weight, it may cause an increase in viscosity due to excessive use and may cause problems in the post-process, so it should be kept within the above range. It's good to use.

Next, the additive is used to add additional functions to the spinning emulsion and/or FDY, and the additive is one or more selected from antioxidants, cationic surfactants, amphoteric surfactants, phase stabilizers, and viscosity regulators. It can be included.

The antioxidant is used to provide heat resistance, and one or more known antioxidants such as phenol-based antioxidants, thio-based antioxidants, and phosphite-based antioxidants can be used. In addition, the content of the antioxidant is preferably 0.1 to 5.0% by weight, preferably 0.1 to 2.0% by weight, and more preferably 0.2 to 1.5% by weight of the total weight of the composition. In this case, the antioxidant content is 0.1% by weight. If it is less than 5.0% by weight, the content may be too small to have the effect of preventing oxidation and improving heat resistance due to its use, and if it is used in excess of 5.0% by weight, there may be a problem of the yarn turning yellow during storage or storage due to excessive use, so it is within the above range. It is best to use it internally.

In addition, the above additives include cationic additives such as alkylamine salts, alkylimidazolinium salts, and quaternary ammonium salts in order to assist the adhesion of FTY, wash the FTY treatment agent with water, and add effects such as antistatic properties, lubricity, and binding properties as fibers. Surfactants; And it may further include at least one selected from amphoteric surfactants such as lauryl dimethyl betaine and stearyl dimethyl betaine. The weight ratio of the surfactant to the non-volatile content of the processing agent when containing these surfactants is not particularly limited, but is preferably 0.1 to 8.0% by weight, and more preferably 0.5 to 5% by weight.

Next, the water dilutes the spinning emulsion to adjust the spinning emulsion to an appropriate viscosity and serves to increase the stability of the product, and is used at 5 to 15% by weight, preferably 5 to 12% by weight, more preferably. It is recommended to use 7 to 12% by weight. At this time, if the water content is less than 5% by weight, product stability decreases and the viscosity becomes too low, and if the water content exceeds 15% by weight, the viscosity of the spinning emulsion may become too high and gelling may occur, so it is recommended to use it within the above range. good night.

The spinning emulsion for polyester-based FDY of the present invention includes the first step of preparing each of the spinning emulsion compositions described above; And it can be manufactured by performing a process including a second step of mixing the composition to produce a spinning emulsion.

In addition, the spinning emulsion prepared by mixing the composition of the present invention has a nonvolatile content concentration of 85 to 95% by weight, and preferably, a nonvolatile content concentration of 90 to 95% by weight is appropriate in terms of viscosity control.

In addition, the spinning emulsion of the present invention has a viscosity of 50 to 70 cP at 25°C, and preferably has a viscosity of 55 to 65 cP at 25°C, which is good in terms of uniformly imparting the spinning emulsion to FDY.

Hereinafter, the present invention will be described in more detail through the following examples and experimental examples. However, the following examples and experimental examples are intended to illustrate the present invention and the scope of the present invention is not limited by these examples and experimental examples.

[Example]

Comparative Preparation Example 1-1: Synthesis of ester compound

Iso-octanol, an aliphatic monohydric alcohol, and stearic acid, a linear saturated fatty acid, were added to the reactor at a molar ratio of 1:1.05, and paratoluene sulfone was mixed as a reaction catalyst.

Next, the temperature was raised to 160°C under a nitrogen stream and reaction was performed for 4 hours, and then the temperature was raised to 190°C and polymerization reaction was performed for 20 hours. After the polymerization reaction, the reaction catalyst and unreacted fatty acid were removed from the reaction product, and an ester polymer (Mw=400) with an acid value of 0.2 KOH mg/g was prepared.

Comparative Preparation Example 1-2 and Preparation Examples 1-1 to 1-2

Ester polymers (compounds) were prepared in the same manner as Preparation Example 1-1, but each ester polymer was prepared by varying the types of aliphatic primary alcohol and linear fatty acid, as shown in Table 1 below.

division Comparison preparation example 1-1 Comparison preparation example 1-2 Preparation example 1-1 Preparation example 1-2 saturated fatty acids stearic acid stearic acid - - unsaturated fatty acids - - Oleic acid Oleic acid primary alcohol isoctanol isoctanol Dodecanol Dodecanol Acid value (KOH mg/g) 0.2 1.5 0.4 4.5 Weight average molecular weight 400 400 450 450

Preparation Examples 2-1 to 2-2 and Comparative Preparation Example 2-1: Preparation of mineral oil

Super grade, Yubase, and Ultra were prepared as mineral oils, and the kinematic viscosity (40°C, cst), weight average molecular weight, and paraffin content of these mineral oils are shown in Table 2 below.

division Comparison preparation example 2-1 Preparation example 2-1 Preparation example 2-2 mineral oil types Super grade Yubase Ultra Viscosity (40℃, cst) 8 20 32 Weight average molecular weight 270 440 500 Paraffin content (% by weight) 60 75 82

Preparation Examples 3-1 to 3-2 and Comparative Preparation Example 3-1: Preparation of phosphoric acid ester salt

The reaction ratio of alkyl alcohol and phosphorus pentoxide was added and mixed to the reactor at a molar ratio of 3:1, and 0.2% by weight of hypophosphorous acid as a reaction catalyst was added and mixed based on the total weight.

Next, the temperature was raised to 80°C under a nitrogen stream and reaction was performed for 20 hours to obtain three types of phosphoric acid esters.

The types of alkyl alcohols and the physical properties of the synthesized phosphoric acid ester salts are shown in Table 3 below.

division Comparison preparation example 3-1 Preparation example 3-1 Preparation example 3-2 Alkyl alcohol Polyoxyethylene Lauryl Alcohol octyl alcohol tridecyl alcohol Sanga 145 235 220 Weight average molecular weight 400 240 250

Examples 1 to 3 and Comparative Examples 1 to 3: Preparation of polyester spinning emulsion for FDY

The ester compound, mineral oil, and phosphoric acid ester salt prepared in the above Preparation Example and Comparative Preparation Example were prepared, respectively.

In addition, as nonionic surfactants, polyoxyalkylene polyhydric alcohol ether (higher alcohol EO adduct), fatty acid ester of PEG (fatty acid ester of polyethylene glycol), and polyoxyalkylene castor oil ether (castor oil EO adduct). Ready.

And, as an anionic surfactant, sodium tridecyl sulfonate and sodium dodecyl benzene sulfonate were mixed at a weight ratio of 1:1.

Additionally, as an additive, propylimidazolium salt (cationic surfactant) and lauryl dimethyl betaine (amphoteric surfactant) were mixed at a weight ratio of 1:0.5.

The composition and water were mixed in a reactor in the composition and ratio as shown in Table 4, and then stirred until uniform, thereby preparing spinning emulsions, and Examples 1 to 3 and Comparative Examples 1 to 3 were performed, respectively.

Experimental Example 1: Test of spinning emulsion physical properties

Each polyethylene terephthalate FTY filament was manufactured using each of the prepared spinning emulsions, and the degree of thread breakage, degree of static electricity generation, and amount of smoke were evaluated using the following methods, and the results are shown in Table 4 below.

(1) Measuring the degree of thread cutting

In the melt spinning process for new spinning equipment, polyester polymer was melt-spun, and the spinning emulsion was applied at an amount of 0.8% using a guided oiling method. The refueled emulsion was stretched with a hot roller at 140°C to obtain FTY filaments with 83d/36f (fineness/number of filaments).

In addition, among the FDYs produced at position 1 of the spinning facility, if the number of thread cuts was less than 5, it was marked as O, and if it was more than 5 times, it was marked as X.

(2) Electrostatic evaluation

For FTY yarn made of unlubricated polyethylene terephthalate with 83d/36f (fineness/number of filaments), the spinning emulsion prepared above was applied using a guided lubrication method so that the amount of non-volatile content was 0.8%, and tested using a friction tester. The static electricity between the yarn and the yarn was measured while contacting a metal friction body and running the yarn at a load of 50 g and a scanning speed of 200 m/min. The results are shown in Table 5.

If the measured charge is less than 1.0, it is indicated as O, and if it is more than that, it is indicated as X.

(3) Evaluation of smoke amount

The same amount of emulsion was heated on a heated metal plate and the amount of smoke particles collected over 5 minutes was summed and measured. If the measurement result is less than 1,500, it is marked as O, and if it is more than 1,500, it is marked as X.

Spinning emulsion composition (% by weight) Example Comparative example One 2 3 One 2 3 ester compounds Comparison preparation example 1-1 - - - 40 - 40 Comparison preparation example 1-2 - - - - 40 - Preparation example 1-1 40 - 40 - - - Preparation example 1-2 - 40 - - - - mineral oil Comparison preparation example 2-1 - - - 13 13 - Preparation example 2-1 13 - - - - - Preparation example 2-2 - 13 13 - - 13 Phosphoric acid ester salt Comparison preparation example 3-1 - - - 2 2 2 Preparation example 3-1 2 2 One - - - Preparation example 3-2 - - One - - - nonionic surfactant High-grade alcohol EO adduct 5 5 5 5 5 5 Fatty acid esters of polyalkylene glycol 10 10 10 10 10 10 Castor oil EO adjunct 5 5 5 5 5 5 anionic surfactant sulfonate 5 5 5 5 5 5 additive 10 10 10 10 10 10 water 10 10 10 10 10 10 Spinning emulsion viscosity (cP at 25°C) 60 62 62 55 55 58 Concentration of non-volatile matter in spinning emulsion (% by weight) 90 90 90 90 90 90 degree of envoy O O O X X O Degree of static electricity generation O O O X X X Smoke level O O O X X O

Through the physical property measurement results in Table 4, it can be confirmed that Examples 1 to 3 have significantly reduced iron sanding and static electricity generation, and have excellent smoke emissions, so they do not worsen the production environment. On the other hand, it was confirmed that Comparative Examples 1 to 3 did not show satisfactory results for 2 to 3 of the 3 items.

Examples 4 to 6 and Comparative Examples 4 to 6: Preparation of spinning emulsion composition and spinning emulsion for polyester-based FDY

Polyester-based spinning emulsion composition and spinning emulsion for FDY were prepared in the same manner as in Example 1, but the spinning emulsions were prepared by varying the content of the spinning emulsion composition as shown in Table 5 below, and Examples 4 to 5 and comparison. Examples 4 to 6 were carried out.

Spin emulsion composition (% by weight) Example Comparative example 4 5 6 4 5 6 ester compounds Preparation example 1-1 40 40 45 40 40 42 mineral oil Preparation example 2-1 12 15 10 15 10 12 Phosphate ester salt Preparation example 3-1 2 2 2 3 2 3 nonionic surfactant High-grade alcohol EO adduct 5 5 5 7 4 5 Fatty acid esters of polyalkylene glycol 15 10 10 2 10 10 Castor oil EO adjunct 5 5 5 7 4 6 anionic surfactant sulfonate 5 2 7 5 3 One additive 8 8 10 10 7 10 water 8 13 6 10 20 11 Spinning emulsion viscosity (cP at 25°C) 60 65 58 61 100 62 Concentration of non-volatile matter in spinning emulsion (% by weight) 92 90 94 90 80 90 degree of envoy O O O O X O Degree of static electricity generation O O O X O X Smoke level O O O X X X

Looking at the physical property evaluation results in Table 5 above, Examples 4 to 6 showed overall excellent evaluation results.

On the other hand, in the case of Comparative Example 4, in which fatty acid ester of polyalkylene glycol was used as a nonionic surfactant component in a weight ratio of less than 1.5 to the higher alcohol EO adduct, the evaluation results of static electricity generation and smoke emission were not good.

In addition, in the case of Comparative Example 5 in which water was used in excess of 20 parts by weight, the viscosity of the spinning emulsion was too high, exceeding 100 cP, and as a result, the emulsion was not distributed evenly, causing a problem of many thread breaks.

In addition, in the case of Comparative Example 6, in which less than 2% by weight of anionic surfactant was used, there was a problem of a high frequency of static electricity generation compared to Example 5.

Claims (11)

An ester compound containing a polymer obtained by polymerizing a linear aliphatic monohydric alcohol and a linear unsaturated fatty acid having 10 to 22 carbon atoms; mineral oil; Phosphoric acid ester salt; nonionic surfactants; anionic surfactant; additive; and water;
The phosphoric acid ester salt is prepared by mixing 0.1 to 0.4 parts by weight of a reaction catalyst with 100 parts by weight of a mixture containing alkyl alcohol and phosphorus pentoxide at a molar ratio of 1:0.25 to 0.50, followed by reaction at 70 to 85°C for 18 to 24 hours. It is a manufactured ester reaction product,
A spinning emulsion composition for polyester-based FDY, wherein the alkyl alcohol includes at least one selected from octyl alcohol, nonyl alcohol, decyl alcohol, undecyl alcohol, lauryl alcohol, tridecyl alcohol, and myristyl alcohol.
delete The method of claim 1, wherein the ester compound has an acid value of 0.3 to 5.0 KOH mg/g and a weight average molecular weight of 400 to 800,
The linear unsaturated fatty acids having 10 to 22 carbon atoms include myristoleic acid, palmitoleic acid, oleic acid, elaidic acid, linolenic acid, and eicosenoic acid ( Contains at least one selected from eicosenoic acid and heneicosanoic acid,
A spinning emulsion composition for polyester-based FDY, wherein the linear aliphatic monohydric alcohol includes a linear alcohol having 10 to 16 carbon atoms. The spinning emulsion composition for polyester-based FDY according to claim 1, wherein the mineral oil has a paraffin content of 70% by weight or more. delete The method of claim 1, wherein the nonionic surfactant includes at least one selected from the group consisting of higher alcohol ethylene oxide (EO) adducts, fatty acid esters of PEG (polyethylene glycol), and castor oil EO (ethylene oxide) adducts,
A spinning emulsion composition for polyester-based FDY, wherein the anionic surfactant includes a sulfonate-based anionic surfactant. The spinning emulsion composition for polyester-based FDY according to claim 1, wherein the additive includes one or more selected from antioxidants, cationic surfactants, amphoteric surfactants, phase stabilizers, and viscosity modifiers. It is a mixed solution of the spinning emulsion compositions of paragraphs 1, 3, 4, 6, or 7,
The non-volatile matter concentration is 85 to 95% by weight,
A spinning emulsion for polyester-based FDY, characterized in that the viscosity at 25°C is 55 to 65 cP. Step 1 of preparing the spinning emulsion composition of paragraph 1, 3, 4, 6, or 7, respectively; and
Step 2 of mixing the composition to prepare a spinning emulsion with a viscosity of 55 to 65 cP at 25°C;
A method for producing a spinning emulsion for polyester-based FDY, comprising: When performing a spinning process by melting polyester chips for manufacturing polyester-based FDY,
A polyester-based FDY manufacturing method, characterized in that the spinning emulsion used to perform the spinning process is manufactured using the spinning emulsion composition of claim 1, 3, 4, 6, or 7. The method of claim 10, wherein the polyester chip is polyethylene terephthalate (PET)-based polyester.