KR20120058240A - Polyester fiber composition having excellent flame-retardant tactility, dyeing property - Google Patents

Abstract

PURPOSE: A polyester fiber composition with excellent texture and dyeing property is provided to ensure high strength and dyeing processability. CONSTITUTION: A polyester fiber composition with excellent texture and dyeing property contains 0.1-10 mol% of 5-sodium sulfo dimethyl isophthalate and polyethylene glycol. The reduction of dyeing property prevents expression of warm texture by reduction of clear color and fiber bulkiness. The mixture amount of the polyethylene glycol contains 0.1-10 weight parts of the polyethylene glycol.

Description

Polyester fiber composition having excellent flame-retardant tactility and dyeing property

The present invention relates to a polyester fiber composition having excellent tactile feel and dyeability, and more particularly, to a polyester fiber composition having a soft flame resistance similar to acrylic fibers and a dyeability superior to general polyester with flame retardant performance. will be.

Typical acrylic fibers are manufactured by water dispersion and solution polymerization using acrylonitrile monomers and have properties similar to wool fibers. The acrylic fiber is made of a rigid structure of irregular spiral by the nitrile group included in the molecular structure, so it is soft, excellent in elasticity and thermal insulation, as well as excellent color development and hygroscopicity. However, when the dyeing process is sensitive to the moist heat treatment, the shrinkage is severe, the price of the expensive due to the decrease in the conventional acrylic producers and the price of acrylic noritryl monomer.

On the other hand, polyester synthetic fibers have low dyeing, soft touch, hygroscopicity, anti-pilling properties, but have high strength, excellent salt processability, shape stability, and low price. It is utilized as.

However, in the prior art, it is an acrylic sensitized synthetic fiber which overcomes the disadvantages of synthetic fiber and acrylic fiber through polyester modification, and has excellent soft and warm touch and dyeing ability, while improving strength and hygroscopicity, and processability, form stability, and anti-pilling property. It did not show technology that simultaneously implemented various functions with excellent and low cost features.

Republic of Korea Patent No. 113304 "Method of producing polyester fiber with excellent dyeing and feel" in order to improve the dyeability and feel of polyester, adding inorganic fine particles soluble in alkali to make a yarn and weaving it into woven, knitted fabric A method of imparting fine irregularities to the fiber surface by treatment has been proposed. However, the patent has a disadvantage in that the sudden rise of the spinning pressure and poor workability during spinning.

In addition, Korean Patent Application No. 1989-18179 has a molecular weight of 300 to 5,000 together with a compound having one metal sulfonic acid group and two ester reaction groups and a compound having one metal sulfonic acid group and one ester before completion of polyester polymerization. Modified polyester obtained by combining and copolymerizing a suitable amount of polyalkylene oxide is a method for producing a basic dye salt-type polyester fiber which has excellent spinning property and high strength at the time of alkali treatment with high yarn strength. When the amount of polyalkylene oxide is used in order to affect the physical properties of the fiber thereby, there is a problem that the uniformity due to its heterogeneous distribution is lowered, there is a problem that the touch and flame retardancy is lowered.

In addition, the copolymerization method proposed in Japanese Patent Application Nos. 43-04545, 44-26972, etc. is the most widely used method for producing anti-filling fibers, and is a method of copolymerizing a compound having 3 or 4 functional groups. A copolymer having a low melt viscosity can be obtained. About 0.5 is suitable for a viscosity, Penta erythritol, trimellitic acid, its anhydride, etc. are used as a copolymerization compound. This method can lower the strength and elongation at the same time, so the anti-pilling property is good, but it requires the washing of the reactor before and after the esterification reaction to produce the copolymer in the polymerization process, and the entanglement of the molecular chains increases, which leads to spinning and stretching workability. This deterioration has a flaw.

In addition, according to Korean Patent Publication No. 2005-000304, a polyester resin obtained by copolymerizing a flame retardant material with 1,4-cyclohexanedimethanol, bisphenol-A and other multifunctional monomers has flame retardancy and excellent transparency and high melt viscosity, but imparts flame retardancy. Additive flame retardant is used.

Therefore, it has been desired to develop a fiber composition that mimics the good properties of acrylic fibers through the modification of polyester but improves the disadvantages of polyester fibers.

In order to solve the above problems, the present invention has an object of providing a polyester fiber having excellent flame retardant properties and excellent soft touch and dyeability, hygroscopicity similar to acrylic fibers.

It is another object of the present invention to provide a polyester fiber composition which is excellent in salt processability, form stability, anti-pilling property, composition and strength and is inexpensive.

In order to achieve the above object, the present invention provides a polyester fiber composition, di-acid compound and diol compound having -COOH or -COOR (where R is C ₁ to C ₁₀ alkyl or arylalkyl group) at the terminal of the polymerization monomer Copolymerize 5-sodium sulfo dimethyl isophthalate (DMS), polyethylene glycol (PEG), titanium dioxide and a reactive phosphorus flame retardant to the polymerized polyester resin, but 5-sodium sulfo dimethyl isophthalate ( DMS) is copolymerized at 1.0 to 10.0 mol%, and is characterized in that the polyethylene glycol (PEG) 0.1 to 10 parts by weight, titanium dioxide 0.1 to 5.0 parts by weight is copolymerized with respect to 100 parts by weight of the polyester resin. It provides a polyester fiber composition.

In addition, the present invention is a diacid compound having -COOH or -COOR (wherein R is a C ₁ to C ₁₀ alkyl group or arylalkyl group) at the end of the polymerization monomer is terephthalic acid, isophthalic acid, dimethyl terephthalate, naphthalene dica It provides a polyester fiber composition having excellent feel and dyeability with flame retardancy, characterized in that at least one selected from the group consisting of carboxylic acid, cyclohexane dicarboxylic acid and dihydroxy benzoic acid.

In the present invention, the diol compound is selected from the group consisting of ethylene glycol, diethylene glycol, triethylene glycol, 1,4-butanediol, 1,3-propanediol, 1,6-hexanediol and cyclohexane dimethanol It provides a polyester fiber composition excellent in the feel and dyeability having a flame retardant performance characterized in that.

In addition, the present invention is a mixture ratio of a compound having a -COOH or -COOR (wherein R is a C ₁ to C ₁₀ alkyl group or an arylalkyl group) and diol compound at the terminal of the polymerization monomer is 1: 1.1 to 1: 2.0 molar ratio It provides a polyester fiber composition excellent in the feel and dyeability having a flame retardant performance, characterized in that the polymerization.

In another aspect, the present invention provides a polyester fiber composition having excellent touch and dyeing properties having a flame retardant performance characterized in that the molecular weight of the polyethylene glycol is 1,000 ~ 20,000.

In another aspect, the present invention provides a polyester fiber composition having excellent touch and dyeing properties having a flame retardant performance, characterized in that the average particle diameter of the titanium dioxide is 0.01 ~ 2.0㎛.

In addition, the present invention is excellent in the touch and dyeing properties with flame retardancy, characterized in that the titanium dioxide is dispersed by slicing at a concentration of 1.0 to 40.0 parts by weight of titanium dioxide with respect to 100 parts by weight of the solvent in a solvent using a diol compound as a solvent. It provides a polyester fiber composition.

In another aspect, the present invention provides a polyester fiber composition having excellent touch and dyeing properties, characterized in that the reactive phosphorus-based flame retardant is added to 1,000 ~ 20,000ppm phosphorus content based on bis-2-hydroxyethyl terephthalate. .

In another aspect, the present invention provides a polyester fiber composition having excellent touch and dyeing properties having a flame retardant performance, characterized in that the phosphorus content of the reactive phosphorus-based flame retardant is 1 to 25 mol% based on the whole diol compound.

In addition, the present invention is used as a single or mixed form selected from the group consisting of titanium compounds, antimony compounds, germanium compounds and aluminum compounds as a copolymerization catalyst in the copolymerization process, characterized in that it contains 50 ~ 400ppm relative to the total polyester resin composition It provides a polyester fiber composition excellent in the feel and dyeability having a flame retardant performance.

In another aspect, the present invention provides a polyester fiber composition having excellent touch and dyeing properties having a flame retardant performance, characterized in that the intrinsic viscosity of the polyester resin is 0.50 ~ 0.65.

As described above, the polyester fiber composition according to the present invention has a flame retardant property and at the same time has an effect of providing a polyester fiber having a soft and warm touch similar to acrylic fiber and excellent dyeability and hygroscopicity.

In addition, the polyester fiber composition according to the present invention has the characteristics of high strength, excellent salt processability and form stability and low cost, and improved hygroscopicity, dye resistance and anti-pilling property of general polyester synthetic fibers.

Hereinafter, the present invention will be described in detail. In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted in order not to obscure the subject matter of the present invention.

The terms " about ", " substantially ", etc. used to the extent that they are used herein are intended to be taken to mean an approximation to or in the numerical value of the manufacturing and material tolerances inherent in the meanings mentioned, Accurate or absolute numbers are used to help prevent unauthorized exploitation by unauthorized intruders of the referenced disclosure.

Polyester fiber according to the present invention is characterized in that the copolymerization by adding a 5-sodium sulfo dimethyl isophthalate (DMS), polyethylene glycol (PEG), titanium dioxide particles and a reactive phosphorus flame retardant to the polyester resin.

The polyester fiber composition is copolymerized with 0.1 to 10 mol% of 5-sodium sulfo dimethyl isophthalate (DMS) based on 100 mol% of the diacid compound constituting the polyester resin, and polyethylene glycol (PEG) based on 100 parts by weight of the polyester resin. 0.1 to 10 parts by weight and 0.1 to 5.0 parts by weight of titanium dioxide particles and a reactive phosphorus flame retardant are added and copolymerized. The polyester resin mixes a diacid compound and a diacid compound having -COOH or -COOR (where R is a C ₁ to C ₁₀ alkyl or arylalkyl group) at the terminal of the polymerization monomer.

The diacid compound has -COOH or -COOR (wherein R is a C ₁ to C ₁₀ alkyl group or arylalkyl group) at the terminal of the polymerization monomer, terephthalic acid, isophthalic acid, dimethylterephthalate, naphthalene dicarboxylic Preference is given to one or more compounds selected from the group consisting of acids, cyclohexane dicarboxylic acids and dihydroxybenzoic acids, the diol compounds being ethylene glycol, diethylene glycol, triethylene glycol, 1,4-butanediol, It is preferably one or more diol compounds selected from the group consisting of 1,3-propanediol, 1,6-hexanediol, cyclohexane dimethanol and the like.

The mixing ratio of the diacid compound and diol compound having -COOH or -COOR (wherein R is a C ₁ to C ₁₀ alkyl group or arylalkyl group) at the terminal of the polymerization monomer is polymerized in a molar ratio of 1: 1.1 to 1: 2.0. It is desirable to be. When mixed in the above ratios, high strength and shape stability are maintained in the production of fibers.

In addition, 5-sodium sulfo dimethyl isophthalate (DMS) used in the present invention is represented by the following formula (1).

The input amount of the 5-sodium sulfo dimethyl isophthalate (DMS) is preferably 0.1 to 10 mol% of 5-sodium sulfo dimethyl isophthalate (DMS), more preferably 1 to 5 mol% relative to 100 mol% of the diacid compound. Do.

When the amount of 5-sodium sulfo dimethyl isophthalate (DMS) is less than 0.1 Mol%, the dyeability decreases during fabric production, and the bright and bright colors and the bulkiness of the fiber cannot be expressed, resulting in a warm touch and exceeding 10 Mol%. It is meaningless to have a steric hindrance due to excessive distribution of 5-sodium sulfo dimethyl isophthalate (DMS) having a bulky structure in the polyester, thereby not obtaining a desired degree of polymerization, and to have a further bright and bright coloring effect.

On the other hand, polyethylene glycol (PEG) used in the present invention is represented by the following formula (2).

Where n is an integer from 20 to 500.

It is preferable that 0.1-10 weight part of polyethyleneglycol is mixed with respect to the mixing amount of polyethyleneglycol 100 weight part of polyester resins. Moreover, it is preferable that it is 1000-20000, and, as for the said molecular weight, it is more preferable that it is 1,000-10,000.

When the polyethylene glycol used in the present invention has a molecular weight of less than 1,000 or an amount of less than 0.1 part by weight, soft touch, hygroscopicity, and dyeability cannot be obtained during fiber production, and the polymerization reactivity is lowered when the molecular weight exceeds 20,000 or more than 10.0 parts by weight. And the glass transition temperature of the formed polyester polymer becomes too low, resulting in poor thermal stability.

In addition, the titanium dioxide used in the present invention is preferably mixed 0.1 to 5.0 parts by weight of titanium dioxide particles with respect to 100 parts by weight of polyester resin. In addition, the titanium dioxide particles preferably have an average particle diameter of 0.01 to 2.0 µm, more preferably 0.1 to 1.0 µm.

If the input amount of the titanium dioxide is less than 0.1 parts by weight, projections on the surface of the yarn may not be properly formed, which may cause a problem of stretching irregularity and loops during spinning. In addition, due to excessive generation of static electricity during the pile (Pile) processing work occurs due to the winding. When the amount of the titanium dioxide input exceeds 5.0 parts by weight, the dispersion of titanium dioxide in the polyester formed of the fiber is not good, and the pack pressure rises and the yarn is broken when spinning, and diffused reflection of light occurs due to the formation of a large projection on the surface of the yarn. The problem that glossiness falls is caused.

In addition, the titanium dioxide is preferably slurried with a diol compound participating in a polyester reaction as a solvent with a polymerization monomer having -COOH or -COOR at the end, 100 parts by weight of the solvent on the diol compound solvent It is preferable that the titanium dioxide is slurried at a concentration of 1.0 to 40.0 parts by weight, and more preferably dispersed at a concentration of 5.0 to 15.0 parts by weight.

When the titanium dioxide is dispersed at a concentration exceeding 40.0 parts by weight in the solvent of the diol compound, it becomes a cause of agglomeration of titanium dioxide in the polyester forming reaction, which leads to a poor dispersion of titanium dioxide in the polyester and causes a pack pressure increase during spinning. When dispersed at a concentration of less than 1.0 part by weight, the molar ratio of the diol compound participating in the polyester reaction with the polymerized monomer having -COOH or -COOR at the terminal exceeds 1: 2.0, which causes the occurrence of side reactions, or Excessive process occurs in the ester production process that is present in excess to remove the diol compound.

The reactive phosphorus-based flame retardant is preferably a reactive phosphorus-based flame retardant represented by Formula 3 or 4 below, and it is preferable to add 1,000 to 20,000 ppm of phosphorus based on the polyester resin. When the phosphorus content is less than 1,000ppm, the effect of flame retardancy is insignificant, and when the content of phosphorus exceeds 20,000ppm, the flame retardancy is not improved.

Moreover, 1-25 mol% is preferable with respect to the said diol compound as a whole. At this time, if the content is less than 1 mol%, the flame retardant effect is insignificant due to the low phosphorus content in the copolymerized polyester resin, and if the content exceeds 25 mol%, there is a problem that the phosphorus content is excessive in the copolyester polyester (Yellowsh).

In the copolymerization process, the copolymerization catalyst may be used alone or in a mixed form selected from the group consisting of a titanium compound, an antimony compound, a germanium compound, and an aluminum compound, and preferably, antimony trioxide (Sb ₂ O ₃ ) or a titanium compound and antimony trioxide. It is good to use it in the mixed form of (Sb ₂ O ₃ ).

In addition, the intrinsic viscosity of the polyester produced in the present invention is preferably 0.50 to 0.65, more preferably 0.55 to 0.61. When the intrinsic viscosity of the polyester is 0.50 or less, the polymerization degree of the formed polyester is low, and the strength and melting viscosity of the polyester are low, resulting in lowering of radioactivity and various problems in post-processing. In addition, if the intrinsic viscosity of the polyester is 0.65 or more, there is a problem that can not express the anti-pilling effect we want by improving the strength of the fiber.

The present invention provides a polyester synthetic fiber having a hygroscopic group and a hydrophilic property by introducing a hydrophilic group into the polyester molecular chain domain while simultaneously providing a soft and warm touch, hygroscopicity, dyeing property, processability, shape stability and strength. It provides a polyester synthetic fiber having excellent flame retardancy as well as excellent LOI (limit oxygen index) of 28 or more.

Looking at the process for producing a polyester resin composition excellent in touch and dyeing according to the present invention, terephthalic acid having -C00H or -COOR (where R is C ₁ to C ₁₀ alkyl or arylalkyl group), Ethylene glycol, diethylene glycol, triethylene glycol, one or more compounds selected from the group consisting of isophthalic acid, dimethyl terephthalate, naphthalene dicarboxylic acid, cyclohexane dicarboxylic acid and dihydroxybenzoic acid One or more diol compounds selected from the group consisting of, 4-butanediol, 1,3-propanediol, 1,6-hexanediol, cyclohexane dimethanol and the like are polymerized.

The reaction ratio of the diacid compound and the diol compound is mixed so as to have a molar ratio of 1: 1.1 to 1: 2.0 An ester reactant is prepared which is esterified at a temperature of 200 to 270 ° C. and a pressure of 1100 to 1350 Torr. 0.1 to 10.0 parts by weight of polyethylene glycol having a molecular weight of 1000 to 20,000 and 1.0 to 5.0 parts by weight of titanium dioxide particles having an average particle diameter of 0.1 to 2.0 μm based on 100 parts by weight of the ester reactant to 1.0 to 40.0 parts by weight of an ethylene glycol solvent. Slurry was added at a secondary concentration, and the reactive phosphorus-based flame retardant was added to 1,000 to 20,000 ppm of phosphorus based on the polyester resin, and then the polyester resin was prepared by reducing the pressure to 1.0 Torr or less at 250 to 300 ° C. Can be.

Polyester fiber composition according to an embodiment of the present invention has a soft warm touch and dyeing property with flame retardant performance when manufactured for the final garment through a spinning and weaving process. In addition, it has better anti-pilling, hygroscopicity and dyeing property than ordinary polyester synthetic fibers. In addition, it has high strength, excellent salt processability, shape stability, and low cost characteristics of the existing polyester synthetic fiber, and thus, the fiber using the polyester resin of the present invention has various pile products, curtains, blankets and It can be applied to children's toys and the like.

Hereinafter, embodiments of the present invention will be described in detail.

Example  One

99 mole% of terephthalic acid (TPA), 1 mole of 5-sodium sulfo dimethyl isophthalate (DMS) and an ethylene glycol (EG) compound as a diacid compound were adjusted to a reaction ratio of 1: 1.2, at 1250 Torr pressure at 250 ° C. Esterification gave an ester formation, with a reaction rate of 97.5%. The ester reactant formed was transferred to a condensation polymerization reactor, and the concentration was 14.5 parts by weight based on 100 parts by weight of polyethylene glycol (molecular weight 1000) and 1 part by weight of titanium dioxide (0.1 part by weight of titanium dioxide (ethylene glycol (EG)). Slurry) and reactive phosphorus-based flame retardant was added with 2,000 ppm of phosphorus based on polyester resin, and then 0.03 parts by weight of antimony trioxide was added as a condensation polymerization catalyst, and the pressure was gradually reduced to 0.5 Torr at a final pressure of 285. The intrinsic viscosity of the modified polyester resin obtained after performing a condensation polymerization reaction by heating up to ℃ was made to be 0.58. In addition, the oxygen limit index, tactile feeling, dyeability, and post-processing workability were evaluated by spinning and weaving after preparing the polyester resin.

Example  2

In the same manner as in Example 1, the molar (Mol%) ratio of the diacid compound terephthalic acid (TPA) and 5-sodium sulfo dimethyl isophthalate (DMS) was 97: 3, and polyethylene glycol (100 parts by weight) Molecular weight 4000) was added 3.0 parts by weight, the titanium dioxide input 1.0 parts by weight and the phosphorus content of 6,000ppm and the intrinsic viscosity of the polyester resin was 0.60.

Example  3

In the same manner as in Example 1, the molar ratio (Mol%) of the diacid compound terephthalic acid (TPA) and 5-sodium sulfo dimethyl isophthalate (DMS) was 95: 5, and polyethylene glycol ( Molecular weight 1000) was added 3.0 parts by weight, titanium dioxide was added 3.0 parts by weight and the content of phosphorus 12,000ppm and the intrinsic viscosity of the polyester resin was 0.64.

Comparative example  One

In the same manner as in Example 1, without adding the diacid compound 5-sodium sulfo dimethyl isophthalate (DMS) to the ester reaction, 1.0 parts by weight of titanium dioxide was added to the ester reactant, and phosphorus-based flame retardant was not added. Instead, the intrinsic viscosity of the polyester resin was set to 0.60.

Comparative example  2

In the same manner as in Example 1, the polyethylene resin, titanium dioxide and phosphorus flame retardant was not added to 100 parts by weight of the ester reactant so that the intrinsic viscosity of the polyester resin was 0.58.

Comparative example  3

In the same manner as in Example 1, the amount of polyethylene glycol (molecular weight 1000) was 2.0 parts by weight, the amount of titanium dioxide was 1.0 parts by weight and the content of phosphorus was 500 ppm, and the intrinsic viscosity of the polyester resin was 0.65 based on 100 parts by weight of the ester reactant. Was made.

※ Measurement method

1. Intrinsic viscosity

The copolyester was dissolved in phenol / tetrachloroethane (weight ratio 60/40) and measured at 35 ° C. with a Uberod viscometer with a concentration of 0.5 g / dl.

2. Limit Oxygen Index (LOI)

The limit oxygen index (LOI) of the examples and the comparative examples was measured by the KS M 3032 method.

3. Dyeing / Tactile

After the spinning and weaving, the modified polyester resin was subjected to sensory evaluation by comparing the relative dyeability (color development) and touch with acrylic fibers of experts, and evaluated as ◎: very good, ○: excellent, △: normal, ×: poor.

division Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 DMS content (Mol%) One 3 5 0 One One PEG content (parts by weight) One 3 3 One 0 2 Titanium Dioxide (parts by weight) 0.1 One 3 One 0 One Intrinsic viscosity 0.58 0.60 0.64 0.60 0.58 0.65 Phosphorus Flame Retardant Content (ppm) 2,000 6,000 12,000 0 0 500 Limit Oxygen Index (LOI) 27 30 33 22 21 23 touch ○ ◎ ◎ △ × ○ Dyeability ○ ◎ ◎ △ × ○ Post-processing workability ○ ◎ ○ ○ △ ○

According to the results of Table 1, the polyester resin of the present invention has excellent feel and dyeability compared to general polyester synthetic fibers when processed into fibers, and is flame retardant, dye-resistant, hygroscopic according to polyethylene glycol, titanium dioxide, phosphorus flame retardant, and intrinsic viscosity adjustment. And it was confirmed that the excellent polyester fiber with improved anti-pilling.

The present invention described above is not limited to the above-described embodiments, and various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be obvious to him.

Claims (11)

In the polyester fiber composition,
5-sodium sulfo dimethyl isophthalate (DMS) on a polyester resin polymerized with a diacid compound and a diol compound having -COOH or -COOR (where R is a C ₁ to C ₁₀ alkyl group or arylalkyl group) at the end of the polymerization monomer. ), Copolymerize polyethylene glycol (PEG), titanium dioxide and reactive phosphorus flame retardants,
5-sodium sulfo dimethyl isophthalate (DMS) is copolymerized at 1.0 to 10.0 mol% based on 100 mol% of the diacid compound, and 0.1 to 10 parts by weight of polyethylene glycol (PEG) and titanium dioxide are used based on 100 parts by weight of the polyester resin. Polyester fiber composition excellent in the feel and dyeability, characterized in that the copolymerization of 0.1 to 5.0 parts by weight. The method of claim 1,
The diacid compound having -COOH or -COOR (wherein R is a C ₁ to C ₁₀ alkyl group or arylalkyl group) at the terminal of the polymerization monomer is terephthalic acid, isophthalic acid, dimethyl terephthalate, naphthalene dicarboxylic acid, Polyester fiber composition excellent in the touch and dyeing property having flame retardancy, characterized in that at least one selected from the group consisting of cyclohexane dicarboxylic acid and dihydroxy benzoic acid. The method of claim 1,
The diol compound is characterized in that at least one selected from the group consisting of ethylene glycol, diethylene glycol, triethylene glycol, 1,4-butanediol, 1,3-propanediol, 1,6-hexanediol and cyclohexane dimethanol Polyester fiber composition excellent in the touch and dyeability having a flame retardant performance. The method of claim 1,
The mixing ratio of the compound having a -COOH or -COOR (where R is a C ₁ to C ₁₀ alkyl group or an arylalkyl group) and the diol compound at the terminal of the polymerization monomer is polymerized in a molar ratio of 1: 1.1 to 1: 2.0. Polyester fiber composition excellent in the feel and dyeability having a flame-retardant performance characterized by. The method of claim 1,
The molecular weight of the polyethylene glycol is 1,000 to 20,000 polyester fiber composition excellent in the touch and dyeing properties having a flame retardant performance. The method of claim 1,
The average particle diameter of the titanium dioxide is polyester fiber composition excellent in the touch and dyeing properties having a flame retardant performance, characterized in that 0.01 ~ 2.0㎛. The method of claim 1,
The titanium dioxide is a polyester fiber composition having excellent touch and dyeing properties with flame retardancy, characterized in that it is dispersed by slicing at a concentration of 1.0 to 40.0 parts by weight of titanium dioxide with respect to 100 parts by weight of a solvent using a diol compound as a solvent. . The method of claim 1,
The reactive phosphorus-based flame retardant polyester fiber composition having excellent touch and dyeing properties, characterized in that the phosphorus content is added 1,000 ~ 20,000ppm based on bis-2-hydroxyethyl terephthalate. The method of claim 1,
A polyester fiber composition having excellent touch and dyeing properties with flame retardancy, characterized in that the phosphorus content of the reactive phosphorus-based flame retardant is 1 to 25 mol% based on the whole diol compound. The method of claim 1,
The flame retardant performance of the copolymerization process is used as a single or mixed form selected from the group consisting of titanium compounds, antimony compounds, germanium compounds and aluminum compounds, 50 to 400ppm of the total polyester resin composition Polyester fiber composition which is excellent in touch and dyeing property which have. The method of claim 1,
Polyester fiber composition excellent in the touch and dyeing properties having a flame retardant performance, characterized in that the intrinsic viscosity of the polyester resin is 0.50 ~ 0.65.