KR101846062B1 - Method for preparing sheath-core type composite fiber having non-circular cross-section with improved heat-blocking and sweat-absorbing, quick-drying ability and sheath-core type composite fiber having non-circular cross-section made thereof - Google Patents

Method for preparing sheath-core type composite fiber having non-circular cross-section with improved heat-blocking and sweat-absorbing, quick-drying ability and sheath-core type composite fiber having non-circular cross-section made thereof Download PDF

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KR101846062B1
KR101846062B1 KR1020160009463A KR20160009463A KR101846062B1 KR 101846062 B1 KR101846062 B1 KR 101846062B1 KR 1020160009463 A KR1020160009463 A KR 1020160009463A KR 20160009463 A KR20160009463 A KR 20160009463A KR 101846062 B1 KR101846062 B1 KR 101846062B1
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component
cross
section
core
core component
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KR1020160009463A
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Korean (ko)
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KR20170089462A (en
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김중열
이태균
이민석
김성주
오성진
박준영
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주식회사 효성
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor
    • D01D5/34—Core-skin structure; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • D01F1/106—Radiation shielding agents, e.g. absorbing, reflecting agents
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/04—Blended or other yarns or threads containing components made from different materials
    • D02G3/045—Blended or other yarns or threads containing components made from different materials all components being made from artificial or synthetic material
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/04—Blended or other yarns or threads containing components made from different materials
    • D02G3/047—Blended or other yarns or threads containing components made from different materials including aramid fibres
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/36—Cored or coated yarns or threads
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/22—Physical properties protective against sunlight or UV radiation
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2501/00—Wearing apparel

Abstract

The present invention relates to a method for producing a titanium oxide-based composite material, which comprises using as a core component a polymerized material in which 1 to 5% by weight of an inorganic material containing titanium oxide having an average particle diameter of 0.8 to 1.2 탆 is mixed in a synthetic resin, Wherein the spinning nozzle has a cross-sectional shape of a cross-sectional shape of the tip of the spinning nozzle from which the polymerized material is discharged, using a spinneret having a spinneret having a modified cross- , The distance from the point where the core component polymer and the supercritical polymerizate meet to the end of the spinning nozzle is 5 to 20 mm, and the method for producing the cross-section conjugate yarn of the core- The cross-section type composite yarn according to the present invention exhibits excellent initial contact cold sensibility and also exhibits excellent Also as the external action after wearing to block the near-infrared simultaneously has the characteristics that the feeling of cold performance maintained. In addition, the capillary formation due to the deformed cross-section yarn has a characteristic of excellent ability to absorb sweat discharged from the human body and dry quickly.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a cross-section composite yarn having a quick-drying function of heat blocking and sweating, and a method for preparing a cross- blocking and sweat-absorbing, quick-drying ability and sheath-core type composite fiber having non-circular cross-section made thereof)

The present invention relates to a process for producing a cross-section composite yarn of a core-sheath structure excellent in heat-blocking and sweat-absorbing quick-drying function, and a cross-section composite yarn of a core-sheath structure produced thereby, , A fiber spinning method using a spinneret having a uniform cross section and a spinning nozzle having a spinneret having a high heat shielding property and a sweat-absorbing quick-drying function, and a method of manufacturing a core- Sectional cross-section composite yarn.

Recently, various kinds of functional fibers have been released in accordance with the trend of high-end of the fiber products. Among them, functional fibers having a heat-shielding function that allows the user to feel cold feeling during use or after use are shown.

Usually, titanium dioxide (TiO 2 ) used as a quenching agent is added in an excessive amount to impart a heat shielding function to synthetic fibers, or menthol or xylitol, which is a post-processing agent, is treated to produce a fabric having a cold feeling function. Also, in response to the increasing demand of the market for cold sensitive fibers, erythritol, squalene, silk protein, and monoglyceride, including xylitol, are mixed to complete a cold-feeling composition, Technology has been developed.

However, when the cold-feeling composition used for imparting cold sensation is contained in the knitted fabric, it is difficult to fix the cold feeling and it is difficult to expect a continuous cold feeling function because the cold feeling function disappears if repeated washing is performed. In addition, the method of applying general titanium dioxide has a semi-permanent performance but the effect thereof is insufficient. In the case of the method of treating the post-treatment agent, moisture is necessarily required for the performance, but when the moisture is not present, And the durability due to washing is weak, so that the performance does not last long.

On the other hand, in order to compensate for the defects of the fiber having a circular cross section and to give a new property, the shape of the spinning nozzle was changed at the time of spinning to improve the cross section to trilobal, pentalobal, hallow A modified cross section yarn was developed. The modified cross section yarns have a wide surface area and can give a glossy and tactile feel like nuts, and are excellent in bending elasticity, resistance to weather, warmth and sweat fastness. The method of producing the modified cross section yarn can be classified into a method of releasing a spinneret or a method of eluting one component through a biaxial spinning method, and it is general to use a spinneret of a modified cross section.

Typically, the chemical fibers used in the spring / summer season are mainly modified cross-sectional yarns and have a sweat-absorbing quick-drying function. However, in the case of a composite yarn which is spun by two extruders, it is difficult to manufacture the composite yarn by using a conventional nozzle cross-section nozzle.

It is an object of the present invention to provide a method for manufacturing a cross-section composite yarn having a core-sheath structure having excellent sweat-and-fast drying performance while keeping cold sensation after wearing by cutting off near-

Another object of the present invention is to provide a cross-section composite yarn of a core-sheath structure excellent in quick-drying performance of heat shielding and sucking.

Other objects, advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments with reference to the accompanying drawings.

According to one aspect of the present invention for achieving the above object,

1 to 3% by weight of an inorganic material containing titanium oxide having an average particle size of 0.2 to 0.4 탆 is contained in a synthetic resin as a core component and 1 to 5% by weight of an inorganic material containing titanium oxide having an average particle diameter of 0.8 to 1.2 탆 is contained in a synthetic resin, Wherein the spinning nozzle has a spinneret device having a spinneret having an irregular cross-sectional shape, wherein the cross-section of the end of the spinning nozzle from which the polymerized material is discharged is a modified cross- And the distance from the point where the polymer compound and the supercritical polymer meet to the end of the spinning nozzle is 5 to 20 mm.

Another aspect of the present invention resides in a method for producing a composite material comprising a synthetic resin which is produced by the above method and has a core part mixed with 1 to 5% by weight of an inorganic material containing titanium oxide having an average particle diameter of 0.8 to 1.2 탆 and has an average particle diameter of 0.2 to 0.4 탆 And a synthetic resin containing 1 to 3% by weight of an inorganic material containing titanium oxide.

The cross-section type composite yarn according to the present invention exhibits excellent initial contact cold sensibility and also has a characteristic that cold feeling performance is maintained even when performing external activities after wearing by blocking near-infrared rays during external activity. In addition, it has an excellent property of rapidly absorbing and drying sweat discharged from a human body by formation of a capillary due to a cross section yarn.

1 is a longitudinal sectional view of a detaching device for manufacturing a composite yarn according to an embodiment of the present invention.
2 is a cross-sectional view of the spinneret spinneret nozzle having a modified cross section used in Example 1. Fig.
Fig. 3 is a cross-sectional photograph of fibers of the cross-section composite yarn of the core-sheath structure produced by Example 1. Fig.
4 is a cross-sectional photograph of the general spinning fiber produced by Comparative Example 1. Fig.
5 is a cross-sectional photograph of a fiber of a circular cross-section composite yarn of core-sheath structure produced by Comparative Example 2. Fig.
FIG. 6 is a graph showing the results of measurement of surface temperature changes of a fabric prepared using the yarn produced in Example 1 and Comparative Example 1. FIG.
Fig. 7 is a schematic view showing a method of measuring the abrasion strength of the yarn produced by Example 1 and Comparative Example 1. Fig.
FIG. 8 is a graph showing the results of measurement of absorbency of a fabric prepared using the yarn produced in Example 1 and Comparative Example 2. FIG.

Hereinafter, a method for producing the cross-section composite yarn of the core-sheath structure according to the present invention will be described in detail with reference to examples.

In the method of the embodiment of the present invention, the polymerized material in which 1 to 5% by weight of an inorganic material containing titanium oxide having an average particle diameter of 0.8 to 1.2 탆 is mixed in the synthetic resin is used as a core part and an inorganic material containing titanium oxide having an average particle diameter of 0.2 to 0.4 탆 1 to 3% by weight of a polymerized material mixed in a synthetic resin is used as an initial part, and a spinning spinneret having a cross-section of at least two cross-sectional shapes is used and composite yarn is produced by two spinning extruders.

The cross-section spinning and wringing apparatus used in the present invention is specially designed to produce a cross-section composite yarn of a core-sheath structure. 1 is a longitudinal sectional view of a detaching device for manufacturing a composite yarn according to an embodiment of the present invention. 1, a spinneret according to the present invention includes a core component inlet pipe 1 into which a core component polymer is introduced, a supercritical component inlet pipe 2 into which a supercritical polymer is introduced, A first distribution plate (I) communicating with the first component distribution pipe (3) in which a supercritical component moves downward; And the polymer component in the core component distributed in the core component inlet pipe (1) and the polymer component in the super component component distributed in the second component moving pipe (3) join together on the upper surface of the first distribution plate (I) A second distributing plate II consisting of a collecting hole 4 forming a mold and a collecting part 5 communicating with the confluent hole 4 and collecting a compound stream of the polymer compound and a discharging hole 6 discharging the compound stream, ).

The cross-section spinning nozzle used in the present invention should have the shape of a cross-section of the discharge hole 6, which is the last part through which the polymer is discharged. The distance d from the confluence hole 4 to the discharge hole 6 corresponding to the tip of the spinning nozzle, which is the point where the core component polymer and the supercritical polymer compound of the spinneret meet, is 5 to 20 mm. If the distance d is less than 5 mm, there is a decrease in radioactivity. If the distance d is 20 mm or more, a modified cross section is not formed.

In the present invention, in the first distribution plate (I), the core component inlet pipe (1) and the secondary component inlet pipe (2) may be alternately arranged radially.

In the present invention, the cross-sectional shape of the spinning nozzle may be discrete, triangular, flattened, cruciform, or ribbon. However, if the cross-sectional shape of the spinning nozzle is W or tapered, The shape with hollow space at the distance can not be produced as a core-shear type cross-section because the deep part is exposed to the outside.

According to the present invention, it is possible to produce a fiber having a modified cross-section and a modified cross-section by using a specially designed spinning nozzle, thereby making it possible to produce a fiber having a fast-drying function as well as heat- When the modified cross section is formed in this manner, the surface area is wide and the pores are widened between the yarns, so that the absorbency can be increased by the capillary phenomenon.

The synthetic resin that can be used in the present invention may be a polyester-based resin or a polyamide-based resin. The synthetic resin constituting the core part may be the same kind as the synthetic resin constituting the core part or may be of different kinds. Non-limiting examples of the polyester resin include olefin polymers such as polyethylene, ethylene-vinyl acetate copolymer and polypropylene, and polyester. On the other hand, non-limiting examples of the polyamide-based resin include nylon 6, nylon 6,6, nylon 6,10, and the like.

In the present invention, the proportion of the core component constituting the core portion and the ratio of the component constituting the core portion are not limited, but it is preferably 30 to 90 to 10 to 70% by weight, more preferably 50 to 70 to 30 to 50% More preferable. In the present invention, when the proportion of the core component is less than 30% by weight of the total components, thermal barrier properties are deteriorated. When the proportion of the core component exceeds 90% by weight, the radioactivity decreases and the core component may come out.

In the present invention, the melting point of the nylon or polyester resin constituting the core portion and the nodule portion is 210 to 260 캜.

In the method for manufacturing a cross-section composite yarn according to an embodiment of the present invention, the synthetic resin polymer in which the inorganic material constituting the core part is mixed may contain 1 to 5% by weight of the inorganic material based on the total weight. In this case, if the content of the inorganic material contained in the synthetic resin polymer constituting the core part is less than 1% by weight, the effect of blocking the infrared ray is not sufficiently exhibited. If the content is more than 5% by weight, the radioactive property, Which can lead to unacceptable disadvantages.

The inorganic substance may further include a dispersant usually allowed to increase the dispersibility in addition to the titanium oxide, or may further include titanium oxide coated with aluminum oxide to increase compatibility.

In the present invention, the inorganic material used for the core component includes titanium oxide having an average particle diameter of 0.8 to 1.2 탆, and the inorganic substance used for the secondary component includes titanium oxide having an average particle diameter of 0.2 to 0.4 탆. The titanium oxide used for the second component has an average particle diameter of 0.2 to 0.4 탆 which is capable of reflecting visible light, thereby enhancing whiteness and suppressing gloss of the fiber.

In order to effectively block the heat of the fibers, the near-infrared rays emitted from the sun must be reflected. The higher the refractive index of a material, the greater the reflectivity. In order to reflect a specific wavelength, the size of the material is an important factor. Accordingly, in the present invention, titanium oxide having a high refractive index is used, and the average particle diameter of the titanium oxide used for the core component is 0.8 to 1.2 탆 in order to satisfy an optimal condition for reflecting near-infrared rays. Since these titanium oxide particles have high hardness and large size, they induce guide wear in the post-process, and particles are not exposed to the surface by the composite spinning method.

In the method for manufacturing the cross-section composite yarn of the core-sheath structure according to an embodiment of the present invention, the spinning temperature is preferably about 240 to 310 ° C. If the spinning temperature is less than 240 캜, the melt is not uniform, resulting in melt-fracture, resulting in poor processability and poor dyeability. If the spinning temperature is 310 캜 or higher, the thermal decomposition of the inorganic material or high- And the original near-infrared ray blocking function and the cold feeling function are lost.

Another aspect of the present invention relates to a cross-section composite yarn of a core-sheath structure produced by the method of the present invention. The cross-section composite yarn of the present invention comprises an inorganic material and a synthetic resin containing titanium oxide having an average particle diameter of 0.8 to 1.2 占 퐉 for reflecting infrared rays at the core portion and an inorganic material containing titanium oxide having an average particle diameter of 0.2 to 0.4 占 퐉 And a synthetic resin.

The cross-section composite yarn of the core-sheath structure may be a long fiber, and is a synthetic fiber having a strength of 1.5 to 7.0 g / d and an elongation of 10 to 150%. The core-sheath composite yarns of the present invention include titanium oxide in the deep and superficial portions of the composite yarn and composite yarns by spinning spinning of the cross-section to provide excellent heat-shielding performance and excellent sweat-and-fast drying performance. Further, the surface temperature of the fiber by the light source is lower by 1 占 폚 to 10 占 폚 than general synthetic fibers made of the same synthetic resin.

The synthetic resin may be a polyester-based resin or a polyamide-based resin. The synthetic resin constituting the core part may be the same kind as the synthetic resin constituting the core part or may be of different kinds. Non-limiting examples of the polyester resin include olefin polymers such as polyethylene, ethylene-vinyl acetate copolymer and polypropylene, and polyester. On the other hand, non-limiting examples of the polyamide-based resin include nylon 6, nylon 6,6, nylon 6,10, and the like.

In the present invention, the ratio of the core component constituting the core portion and the ratio of the component constituting the core portion is preferably 30 to 90 to 10 to 70% by weight, more preferably 50 to 70 to 30 to 50% by weight. In the present invention, when the proportion of the core component is less than 30% by weight of the total components, thermal barrier properties are deteriorated. When the proportion of the core component exceeds 90% by weight, the radioactivity decreases and the core component may come out.

In the present invention, the melting point of the nylon or polyester resin constituting the core portion and the nodule portion is 210 to 260 캜.

In the cross-section composite yarn of the core-sheath structure according to an embodiment of the present invention, the synthetic resin polymer in which the inorganic material constituting the core part is incorporated may contain 1 to 5% by weight of the inorganic material based on the total weight. In this case, if the content of the inorganic material contained in the synthetic resin polymer constituting the core part is less than 1% by weight, the effect of blocking the infrared ray is not sufficiently exhibited. If the content is more than 5% by weight, the radioactive property, Which can lead to unacceptable disadvantages.

The cross-section composite yarn of the core-sheath structure of the present invention can be used, for example, in clothing, bedding, carpets, curtains and the like which are imparted with quick-drying properties such as cold sensation and sweating.

Hereinafter, a method for producing a cross-section composite yarn of a core-sheath structure according to the present invention will be described in more detail with reference to examples. It should be understood, however, that the scope of the present invention is not limited to the disclosed embodiments.

Example 1: Production of a cross-sectioned core-sheath type heat-insulating composite yarn

A master batch was prepared by incorporating 60% by weight of rutile type titanium oxide having an average particle size of 1 탆 in a polyethylene terephthalate resin (intrinsic viscosity (IV) of 0.64 dl / g). The prepared master batch was mixed with 92 wt% of a ratio of polyethylene terephthalate resin (intrinsic viscosity (IV) 0.64 dl / g) to the core portion, and an anatase-type titanium oxide Was mixed with 2.5 wt% of polyethylene terephthalate resin (intrinsic viscosity (IV) 0.64 dl / g). 2 is a cross-sectional view of the spinneret spinneret nozzle having a modified cross section used in Example 1. Fig. Referring to Fig. 2, the cross section of the spinneret nozzle is a ribbon type having a width of 0.7 mm, a length of a longitudinal edge of 0.18 mm, and a length of a longitudinal center of 0.12 mm. In addition, a cross-section composite spinneret having a distance (d) of 10 mm between the portion where the deep portion and the initial portion meet and the final detent is used.

The polymeric components of the prepared core and sheath were respectively injected at a rate of 40 to 60% by weight, and the mixture was spinned at a deep spinning temperature of 290 ° C and an initial spinning temperature of 290 ° C at a rate of 3,000 m / / 48 Pilasu was produced as a semi-gentleman. The cross section of the composite yarn thus produced is shown in Fig.

The manufactured warp yarn was twisted at a draw-texturing speed of 500 m / min, a stretching ratio of 1.67, and a hot plate temperature of 200 ° C to produce a false-twist yarn of 75 denier / 48 pillar count.

Comparative Example 1: Production of general spinning fiber

2.5% by weight of an anatase-type titanium oxide having an average particle size of 0.3 탆 was mixed with polyethylene terephthalate resin at a rate of 3,000 m / min using a general circular nozzle at a spinning temperature of 290 캜 to produce 125 denier / . FIG. 4 shows a cross section of the composite yarn produced. The manufactured nonwoven fabric was twisted at a twist rate of 500 m / min, a draw ratio of 1.67, and a hot plate temperature of 200 ° C to prepare a false twist yarn of 75 denier / 48 pillar count.

Comparative Example 2: Production of circular cross-section composite yarn

A composite yarn was produced in the same manner as in Example 1, except that a circular cross-section spinning nozzle was used. Fig. 5 shows a cross section of the composite fiber produced.

Experimental Example 1: Measurement of surface temperature change

The yarn prepared in Example 1 and Comparative Example 1 was made into a plain weave having a weight of 98 g / m 2 . The change in the surface temperature of the fabric with the light source was measured, and the results are shown in Fig. Referring to FIG. 6, it can be seen that the surface temperature of the fabric according to Example 1 was 3.9 ° C. lower than the surface temperature of the fabric according to Comparative Example 1.

Experimental Example 2: Wear Strength Measurement

The abrasion strength of the yarn produced by Example 1 and Comparative Example 1 was measured and is shown in Table 1 below.

* Measurement of Wear Strength: Dynamic Shrinkage Tester (CTT-DST) (manufactured by Lawson Hemphill, USA) was used, and a schematic diagram showing the measurement method is shown in FIG. Referring to FIG. 7, when the yarn runs at a speed of 100 m / min on a copper wire of 0.28 mm diameter, the length of the point at which the copper wire is broken is measured.

division Wear Strength (m) Example 1 (Composite spinning) 7000 or more Comparative Example 1 (general spinning) 211

 According to the above Table 1, it can be said that the point of time when the copper wire is broken at the time of general spinning according to Comparative Example 1 can not be used at 211 m, and even if the additive is more abundant than the general spinning method according to Example 1, .

Experimental Example 3: Absorption Measurement

The absorbency of the fabric prepared using the yarn produced by Example 1 and Comparative Example 2 was measured using KS K 0815 B (test method of knitted fabric - absorption rate), and the results are shown in FIG. Absorbency was calculated as the percentage [(W 1 / W 0 ) × 100] of the increment (W 1 ) of the sample weight after absorption (30 minutes at room temperature) relative to the initial sample weight (W 0 ). Referring to Fig. 8, it can be seen that the absorbency of the fabric according to Example 1 is 91 mm / 10 min, which is higher than the absorbency of the fabric according to Comparative Example 2, which is 56 mm / 10 min.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. This will be obvious.

1: Core component inlet pipe 2: Secondary component inlet pipe
3: second component moving tube 4: confluent ball
5: Focusing part 6: Discharge ball
I: First distribution plate II: Second distribution plate

Claims (11)

1 to 3% by weight of an inorganic material containing titanium oxide having an average particle size of 0.2 to 0.4 탆 is contained in a synthetic resin as a core component and 1 to 5% by weight of an inorganic material containing titanium oxide having an average particle diameter of 0.8 to 1.2 탆 is contained in a synthetic resin, (1), a superfine polymeric material (1) into which a core component polymer is introduced, and a spinning spinneret having a spinning nozzle having a modified cross- A first distribution plate (I) comprising the incoming supercurrent inlet pipe (2) and the supercurrent moving pipe (3) communicating with the supercurrent inlet pipe (2) and having a supercritical component moving downward; And the polymer component in the core component distributed in the core component inlet pipe (1) and the polymer component in the super component component distributed in the second component moving pipe (3) join together on the upper surface of the first distribution plate (I) A second distributing plate II consisting of a collecting hole 4 forming a mold and a collecting part 5 communicating with the confluent hole 4 and collecting a compound stream of the polymer compound and a discharging hole 6 discharging the compound stream, (6) corresponding to the end of the spinneret from the confluent hole (4), which is a point where the discharge port (6) Wherein the distance d between the core component inlet pipe 1 and the supercapacitor inlet pipe 2 in the first distribution plate I is arranged radially alternately with respect to each other. Wherein said method comprises the steps of:
delete [3] The method according to claim 1, wherein the cross-sectional shape of the tip of the spinning nozzle of the spinneret is a discrete, triangular, tetrahedral, cruciform or ribbon shape.
The method of claim 1, wherein the core component ratio and the second component ratio are 30 to 70 wt% to 90 to 10 wt%.
The method according to claim 1, wherein the synthetic resin is a polyester resin or a polyamide resin.
The method according to claim 1, wherein the synthetic resin constituting the core component is the same as the synthetic resin constituting the superfine component.
The method according to claim 1, wherein the synthetic resin constituting the core component is different from the synthetic resin constituting the superfine component.
delete delete delete (1), a supercritical fluid inflow pipe (2) into which a supercritical polymer material flows, and a supercritical fluid moving tube (2) in which a supercritical fluid moves downward in communication with the supercritical fluid inflow pipe 3); < Desc / Clms Page number 12 > And the polymer component in the core component distributed in the core component inlet pipe (1) and the polymer component in the super component component distributed in the second component moving pipe (3) join together on the upper surface of the first distribution plate (I) A second distributing plate II consisting of a collecting hole 4 forming a mold and a collecting part 5 communicating with the confluent hole 4 and collecting a compound stream of the polymer compound and a discharging hole 6 discharging the compound stream, ) Of the spinning nozzle (6) from the confluence hole (4), which is the point where the discharge hole (6), which is the last part from which the polymerized material is discharged, The distance d to the discharge hole 6 is 5 to 20 mm and the core component inlet pipe 1 and the secondary component inlet pipe 2 in the first distribution plate I are alternately arranged radially Characterized in that the spinning and detaching device for manufacturing a cross section cross section composite yarn is provided.

KR1020160009463A 2016-01-26 2016-01-26 Method for preparing sheath-core type composite fiber having non-circular cross-section with improved heat-blocking and sweat-absorbing, quick-drying ability and sheath-core type composite fiber having non-circular cross-section made thereof KR101846062B1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010116660A (en) * 2008-10-17 2010-05-27 Kb Seiren Ltd Sheath-core conjugate fiber
KR101503637B1 (en) 2014-01-24 2015-03-19 주식회사 효성 Method for preparing sheath-core type and flat type composite fiber having non-circular cross-section and composite fiber made thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010116660A (en) * 2008-10-17 2010-05-27 Kb Seiren Ltd Sheath-core conjugate fiber
KR101503637B1 (en) 2014-01-24 2015-03-19 주식회사 효성 Method for preparing sheath-core type and flat type composite fiber having non-circular cross-section and composite fiber made thereof

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