KR20170092954A - Apparatus for manufacturing aramid fiber - Google Patents
Apparatus for manufacturing aramid fiber Download PDFInfo
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- KR20170092954A KR20170092954A KR1020160014260A KR20160014260A KR20170092954A KR 20170092954 A KR20170092954 A KR 20170092954A KR 1020160014260 A KR1020160014260 A KR 1020160014260A KR 20160014260 A KR20160014260 A KR 20160014260A KR 20170092954 A KR20170092954 A KR 20170092954A
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- Prior art keywords
- coagulation
- spinneret
- spin
- divided
- capillary
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- 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
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides
- D01F6/605—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides from aromatic polyamides
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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
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/06—Washing or drying
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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
- D01D5/06—Wet spinning methods
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- 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
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- 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
- D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
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- 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
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
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- 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
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
- D10B2331/021—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides aromatic polyamides, e.g. aramides
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- 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
- D10B2401/06—Load-responsive characteristics
- D10B2401/061—Load-responsive characteristics elastic
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- 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
- D10B2401/06—Load-responsive characteristics
- D10B2401/062—Load-responsive characteristics stiff, shape retention
-
- 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
- D10B2401/06—Load-responsive characteristics
- D10B2401/063—Load-responsive characteristics high strength
-
- 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
- D10B2505/00—Industrial
- D10B2505/02—Reinforcing materials; Prepregs
Abstract
One spinneret is divided into two or more spin capillary sections, each of which is divided into at least two yarn streams, and the spin capillary section is divided into two or more spin capillary sections, Each yarn stream discharged from the spinner is stretched through the air layer and passed through the coagulation bath of the coagulation bath to pass through the same coagulation tubes as the respective spin capillary compartments, The present invention also provides an apparatus for producing an aramid fiber. In addition, the present invention invented two or more Yarn Stream / 1 Spinnerets and two or more coagulation solidification tubes without changing the conventional spinning facility, And it is possible to produce high-strength, high-elasticity aramid products using high-speed radiation of 700m / min or more by improving coagulation fluid stability through coagulating liquid flow control for each stream in one coagulation bath.
Description
The present invention relates to a coagulation tube having two or more yarn streams / one spinneret and two or more coagulable coagulation tubes for the same, and one coagulation bath, And a high-speed spinning of 700 m / min or more.
Para aramid fibers are widely used as industrial fibers because they have excellent physical properties such as excellent strength, initial elastic modulus and dimensional stability. In recent years, demand for low-denier products such as cable reinforcements and sewing thread for earphones has been increasing, but one low denier per spinneret is produced. As a result, manufacturing costs and sales prices for lower denier products are far higher than those of Taesan. According to Akzo N. V's patent US 4,702,876, one spinneret can be divided into two or more compartments, each of which can be solidified with a solidification system for each compartment, producing low denier products. However, due to the lowering of tensile strength due to the absence of the solidification tube, high-speed production of 700 m / min or more is limited. According to KR10-2015-0112282 of Kolon Industries, two or more spinnerets produce low denier products through two or more solidification tubes in one solidification bath. However, due to the use of a large number of spinnerets, the area of the solidification bath is increased, resulting in non-uniform flow of the solidification liquid in the solidification bath, resulting in unevenness and deterioration of the tensile strength.
The present invention provides an apparatus for producing an aramid fiber characterized by an increase in production rate and a high-speed spinning through the invention of a solidification tube capable of two or more solidification without changing the conventional spinning apparatus, in order to solve the problems of the above- The purpose.
One spinneret is divided into two or more spin capillary sections, each of which is divided into at least two yarn streams, and the spin capillary section is divided into two or more spin capillary sections, Each yarn stream discharged from the spinner is stretched through the air layer and passed through the coagulation bath of the coagulation bath to pass through the same coagulation tubes as the respective spin capillary compartments, The present invention also provides an apparatus for producing an aramid fiber.
In addition, the spinneret is divided into two or more spin capillary sections having a circular or quadrangular shape, and each of the spin capillary sections is divided into a spinneret A pitch center diameter pattern arranged around the center point of each spin capillary or a pitch center diameter pattern centered on each spin capillary center point .
The number of spin capillaries in the one spinneret is 100 to 2000, and the spin capillary in one spinneret is divided into two to four divisions. The present invention also provides an apparatus for producing an aramid fiber.
Since the present invention invented two or more yarn stream / one spinneret and two or more coagulation solidification tubes without changing the conventional spinning equipment, the production of the low-dew product is increased to more than twice It is possible to produce high-strength, high-elasticity aramid products using high-speed radiation of 700m / min or more by improving coagulation fluid stability through coagulating liquid flow control for each stream in one coagulation bath.
1 is a view showing a spinneret and a solidification tube of the present invention.
2 is a sectional view of a spinneret showing a pitch center diameter pattern arranged around a spinneret center point according to an embodiment of the present invention.
3 is a cross-sectional view of a spinneret showing a pitch center diameter pattern centered on a center of each spin capillary compartment, according to an embodiment of the present invention.
Hereinafter, the present invention will be described.
BRIEF DESCRIPTION OF THE DRAWINGS Fig.
The present invention is divided into two or more spin capillary divisions in one spinneret, and each yarn stream is divided into respective spin capillary divisions. Each yarn stream discharged from the spinneret is stretched through the air layer and the yarn stream is solidified through the coagulation bath layer of the coagulation bath. At this time, each yarn stream is passed through each solidification tube mounted on the solidification bath, and each yarn stream is separated, washed, neutralized and dried, and then wound or wound on each of the winders. Is wound. The shape of the spinneret is symmetrically divided into two or more Spin Capillary segments in the shape of a circle (donut) or a square, and each Spin Capillary segment is a PCD (Pitch Center Diameter) pattern (Figure 1) arranged around the spinneret center point And a PCD pattern (Fig. 2) centered on the center of each spin capillary segment. The solidification tube is equal to the number of Spin Capillary compartments, which are located directly underneath the center point of the Spin Capillary compartment or located on the extension line around the direct compartment center point. In order to ensure the uniformity of the coagulation solution for each compartment in the coagovese (to minimize the swaying of the water surface), a 3 ~ 10 mm thick dam with one or more stages around the center of each compartment was installed to alleviate the flow velocity difference Minimizes the instability of sleep. The number of spin capillaries in one spinneret is 100 to 2,000, and the spin capillary block in one spinneret is divided into two or more, preferably two to four, compartments. As a result, it is possible to produce 40 ~ 800 denier divided aramid yarn in the split spin of the spin capillary division, and it is possible to produce 400 ~ 3,000 denier yarn through the yarn splitting process during the spinning process. Spin capillary compartments in the solidification process were separated, and the coagulation effect in the coagulation tube increased, and the tensile strength and the uniform tension increased in the air layer, resulting in an increase in the tensile strength compared to the aramid yarn with one coagulation tube by one spinneret .
The properties of the aramid fiber may include elongation and tensile strength. Needless to say, however, the present invention is not limited thereto and includes all physical properties that can be measured by a person skilled in the art.
Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.
Hereinafter, the present invention will be described in detail with reference to examples. However, these examples are for illustrating the present invention specifically, and the scope of the present invention is not limited to these examples.
Example 1
Polyparaphenylene terephthalamide (PPTA) was dissolved in 100% concentrated sulfuric acid to prepare a spinning solution. The concentration of polyparaphenylene terephthalamide (PPTA) in the spinning solution was adjusted to be 19.5 wt%. The spinning solution was extruded through a spinneret of 134 Capillary * 4 compartments of the shape shown in Figure 2 by dry-jet wet spinning and then passed through four coagulation tubes composed of three stages of 7 mm dams in the coagulation bath The coagulation and sulfuric acid as solvent were extracted to form an aramid filament. The aramid fibers separated into four by a four-piece ceramic guide were irradiated at 700 m / min with 200 denier aramid fibers using a wash, neutralization and drying equipment. At this time, the height of the air layer is 7 mm, the level of the solidifying bath is 11 mm, and the temperature of the coagulating liquid is 3 캜.
Example 2
Polyparaphenylene terephthalamide (PPTA) was dissolved in 100% concentrated sulfuric acid to prepare a spinning solution. The concentration of polyparaphenylene terephthalamide (PPTA) in the spinning solution was adjusted to be 19.5 wt%. The spinning solution was extruded through a spinneret of 134 Capillary * 4 compartments of the shape shown in Figure 2 by dry-jet wet spinning and then passed through four coagulation tubes composed of three stages of 7 mm dams in the coagulation bath The coagulation and sulfuric acid as solvent were extracted to form an aramid filament. Then, the aramid fibers separated into 4 pieces through the four-piece ceramic guide were wound after the washing, neutralization and drying, and the aramid fibers of 800 deniers were radiated at 700 m / min. At this time, the height of the air layer is 7 mm, the level of the solidifying bath is 11 mm, and the temperature of the coagulating liquid is 3 캜.
Example 3
Polyparaphenylene terephthalamide (PPTA) was dissolved in 100% concentrated sulfuric acid to prepare a spinning solution. The concentration of polyparaphenylene terephthalamide (PPTA) in the spinning solution was adjusted to be 19.5 wt%. The spinning solution was extruded through a spinneret of 134 Capillary * 4 compartments of the shape shown in Figure 2 by dry-jet wet spinning and then passed through four coagulation tubes composed of three stages of 7 mm dams in the coagulation bath The coagulation and sulfuric acid as solvent were extracted to form an aramid filament. Then, the aramid fibers separated into four by the four-piece ceramic guide were wound after the washing, neutralization and drying, and the aramid fibers of 800 deniers were radiated at 900 m / min. At this time, the height of the air layer is 7 mm, the level of the solidifying bath is 11 mm, and the temperature of the coagulating liquid is 3 캜.
Comparative Example 1
Polyparaphenylene terephthalamide (PPTA) was dissolved in 100% concentrated sulfuric acid to prepare a spinning solution. The concentration of polyparaphenylene terephthalamide (PPTA) in the spinning solution was adjusted to be 19.5 wt%. The spinning solution was extruded through a 134-capillary spinneret having the shape shown in FIG. 2 by dry-jet wet spinning, and then passed through a single coagulation tube composed of one step of 7 mm in the coagulation bath, Sulfuric acid was extracted to form an aramid filament. The aramid fibers were then irradiated at 700 m / min with 200 denier aramid fibers using wash, neutralization and drying equipment. At this time, the height of the air layer is 7 mm, the level of the solidifying bath is 11 mm, and the temperature of the coagulating liquid is 3 캜.
Comparative Example 2
Polyparaphenylene terephthalamide (PPTA) was dissolved in 100% concentrated sulfuric acid to prepare a spinning solution. The concentration of polyparaphenylene terephthalamide (PPTA) in the spinning solution was adjusted to be 19.5 wt%. The spinning solution was extruded through a spinneret of 536 capsillary having the shape shown in FIG. 2 by dry-jet wet spinning, and then passed through a single coagulation tube composed of one step of 7 mm in the coagulation bath, Sulfuric acid was extracted to form an aramid filament. The aramid fibers were then spinned at 700 m / min with 800 denier aramid fibers using a wash, neutralization and drying facility. At this time, the height of the air layer is 7 mm, the level of the solidifying bath is 11 mm, and the temperature of the coagulating liquid is 3 캜.
(m / min)
As shown in Table 1, by separating the spin capillary compartments in the coagulation process, the coagulation effect in the coagulation tube, the tensile increase in the air layer, and the increase in uniform tension during the coagulation were classified into one aramid yarn The contrast tensile strength was improved.
While the present invention has been described in connection with specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims. It will be easy to see.
Claims (3)
The spin capillary divisions are each divided into at least two yarn streams,
Each yarn stream discharged from a spinneret is stretched through an air layer, passed through a coagulation bath of a coagulation bath, passed through the same coagulation tube as the number of spin capillary compartments, And then solidifying the resulting aramid fiber.
In the spinneret, two or more spin capillary compartments having a circular or quadrangular shape are symmetrically divided,
Each spin capillary compartment has a pitch center diameter pattern centered on the spinneret center point or a center of each spin capillary compartment center And a pitch center diameter pattern of the aramid fibers.
The number of spin capillaries in the one spinneret is 100 to 2000,
Wherein the spin capillary compartment in one spinneret is divided into two to four compartments. ≪ RTI ID = 0.0 > 11. < / RTI >
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160014260A KR20170092954A (en) | 2016-02-04 | 2016-02-04 | Apparatus for manufacturing aramid fiber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160014260A KR20170092954A (en) | 2016-02-04 | 2016-02-04 | Apparatus for manufacturing aramid fiber |
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| KR20170092954A true KR20170092954A (en) | 2017-08-14 |
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| KR1020160014260A KR20170092954A (en) | 2016-02-04 | 2016-02-04 | Apparatus for manufacturing aramid fiber |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110760941A (en) * | 2019-11-26 | 2020-02-07 | 中芳特纤股份有限公司 | Spinning device for para-aramid dry-jet wet spinning |
-
2016
- 2016-02-04 KR KR1020160014260A patent/KR20170092954A/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110760941A (en) * | 2019-11-26 | 2020-02-07 | 中芳特纤股份有限公司 | Spinning device for para-aramid dry-jet wet spinning |
| CN110760941B (en) * | 2019-11-26 | 2022-02-11 | 中芳特纤股份有限公司 | Spinning device for para-aramid dry-jet wet spinning |
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