CN113122939A - Preparation method of regenerated hollow yarn with moisture absorption and breathability and spinneret plate for production - Google Patents
Preparation method of regenerated hollow yarn with moisture absorption and breathability and spinneret plate for production Download PDFInfo
- Publication number
- CN113122939A CN113122939A CN202110299611.0A CN202110299611A CN113122939A CN 113122939 A CN113122939 A CN 113122939A CN 202110299611 A CN202110299611 A CN 202110299611A CN 113122939 A CN113122939 A CN 113122939A
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- hole
- plectane
- moisture absorption
- diameter
- circular plate
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 title abstract description 12
- 230000035699 permeability Effects 0.000 claims abstract description 19
- 238000009987 spinning Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000012510 hollow fiber Substances 0.000 claims description 9
- 230000003746 surface roughness Effects 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- 239000000155 melt Substances 0.000 claims description 4
- 238000007664 blowing Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 10
- 239000000835 fiber Substances 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 3
- 239000004753 textile Substances 0.000 abstract description 3
- 238000002788 crimping Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 3
- 239000000306 component Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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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
- D01D5/24—Formation of filaments, threads, or the like with a hollow 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
- D01D1/00—Treatment of filament-forming or like material
- D01D1/04—Melting filament-forming substances
-
- 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
- D01D1/00—Treatment of filament-forming or like material
- D01D1/06—Feeding liquid to the spinning head
- D01D1/09—Control of pressure, temperature or feeding rate
-
- 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
- D01D1/00—Treatment of filament-forming or like material
- D01D1/10—Filtering or de-aerating the spinning solution or melt
- D01D1/106—Filtering
-
- 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
- D01D5/08—Melt spinning methods
- D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The invention discloses a preparation method of regenerated hollow yarns with moisture absorption and air permeability and a spinneret plate for production, belonging to the technical field of production of textile chemical fibers, the spinneret plate for production of regenerated hollow yarns with moisture absorption and air permeability comprises a main body and a flat hole, the main body comprises a first circular plate and a second circular plate, the second circular plate is fixedly assembled at the bottom of the first circular plate, one side of the surface of the first circular plate is provided with an installation groove, the upper surface of the first circular plate is provided with an installation hole, an inner cavity hole is arranged below the installation hole, the flat hole is arranged below the inner cavity hole, the preparation method of the regenerated hollow yarns with moisture absorption and air permeability and the spinneret plate for production solve the problems that the existing market products are all formed by spinning raw slices through a circular spinneret plate, and a product with certain fluffiness and crimping effect is obtained by adjusting various process temperatures through the matching of the main body and the flat hole, the problems of softness, elegant appearance, plump hand feeling and moisture absorption and air permeability are solved.
Description
Technical Field
The invention belongs to the technical field of production of textile chemical fibers, and particularly relates to a preparation method of a regenerated hollow fiber with moisture absorption and air permeability and a spinneret plate for production.
Background
The spinneret plate is also called as spinning cap, and is used for converting viscous-flow high polymer melt or solution into thin flow with specific cross section through micropores, and solidifying the thin flow by a solidification medium such as air or a solidification bath to form filaments, which have different specifications, shapes, hole patterns, materials and the like according to the types and specifications of fibers. The spinneret works at relatively high temperatures and pressures, requiring pressure resistance, corrosion resistance and sufficient mechanical strength.
However, the existing preparation method of the regenerated hollow yarn with moisture absorption and air permeability and the spinneret plate for production have the following defects in the using process:
the current market products are all formed by spinning primary slices through a circular spinneret plate, products with certain fluffiness and crimping effects are obtained by adjusting various process temperatures, the effects of softness, elegance, plump hand feeling and moisture absorption and air permeability are not achieved, and especially similar products are not available in the regenerated polyester fiber industry, so that the preparation method of the regenerated hollow yarns with moisture absorption and air permeability and the spinneret plate for production are necessary to be used in the existing production field of textile chemical fibers.
Disclosure of Invention
Aiming at the problems that the existing market products are all formed by spinning through a circular spinneret plate by using primary chips, a product with certain fluffiness and curling effect is obtained by adjusting various process temperatures, the effects of softness, elegance, plump hand feeling and moisture absorption and air permeability are not generated, and particularly similar products are not generated in the regenerated polyester fiber industry, the invention provides a preparation method of a regenerated hollow yarn with moisture absorption and air permeability and a spinneret plate for production, wherein the equipment performance is improved by changing 2 semicircular holes of conventional flat holes into 4C holes, so that the problems provided in the background technology are solved.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a preparation method of a regenerated hollow yarn with moisture absorption and air permeability, which comprises the following steps:
s1, drying the regenerated slices for 6 hours at the temperature of 155 ℃;
s2, melting the regenerated slices at 275-290 ℃, and removing impurities in the melt by 2 times of filtration;
s3, spinning by using a spinneret plate, wherein the pressure of a spinning control assembly is 0.18-0.22MPA, the temperature of cross air blowing is 22 ℃, the humidity is 90% +/-5, the wind speed is 0.65 +/-0.05 m/min, and the spinning speed is 3800-4000m/min in the spinning process.
The invention also provides a spinneret plate with moisture absorption and air permeability for producing the regenerated hollow yarns, which comprises a main body and flat holes; the flat hole is vertically and equally divided into four equal parts, an included angle formed by every two adjacent equal parts is 90 ℃, the central position from the circle center to each equal part is 45 ℃, the diameter of the inner ring is 1.46mm, the diameter of the outer ring is 1.6mm, the height from the connecting point of the inner cavity hole and the flat hole to the bottom of the second circular plate is 0.5mm, and the error is not more than 0.02 mm.
Preferably, the main body comprises a first circular plate and a second circular plate, the second circular plate is fixedly assembled at the bottom of the first circular plate, the thickness of the first circular plate is 12mm, the thickness of the first circular plate is 20mm, the error value is not more than 0.1mm, the diameter of the first circular plate is 75mm, the error value is 0-0.2, the diameter of the second circular plate is 65mm, and the error value is 0-0.3.
Preferably, first plectane surface one side be provided with the mounting groove, and the mounting groove is the semicircle spread groove that the diameter is 3.5mm, high ℃ is 6mm, wide ℃ is 2.7mm, the horizontal plane and the vertical plane of first plectane and second plectane form the chamfer that the right angle limit is 0.5mm, angle ℃ is 45 ℃.
Preferably, the first circular plate central position is provided with an annular with a diameter of 32mm, the annular is provided with 8 mounting holes with a diameter of 4mm at equal distances, the first circular plate central position is provided with an annular with a diameter of 54mm, and the annular is provided with 16 mounting holes with a diameter of 4mm at equal distances.
Preferably, mounting hole below be provided with the inner chamber hole, mounting hole and inner chamber hole intercommunication, the mounting hole inner wall extends with the inner chamber hole and is connected the formation contained angle 90 ℃, the cylindrical hole that inner chamber hole diameter is 2.5mm, inner chamber hole below be provided with flat hole, inner chamber hole inner wall extends with flat hole and is connected the formation contained angle 60 ℃.
Preferably, the surface roughness of the upper surface of the first circular plate is 3.2, the surface roughness of the lower surface of the second circular plate is 0.8, the roughness of the inner wall of the inner cavity hole is 3.2, and the roughness of the section of the main body is 3.2.
Preferably, the mounting holes, the inner cavity holes and the flat holes are communicated, and the number of the flat holes on the lower surface of the second circular plate is the same as that of the mounting holes on the surface of the first circular plate.
Advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
1. the invention vertically and equally divides the flat holes into four equal parts, namely specially designs and customizes a spinneret plate of a spinning core component, changes the conventional flat holes from 2 semicircles to 4C, solves the problem that products with certain fluffiness and curling effect are obtained by adjusting various process temperatures through adjustment, and avoids the problems of no effects of softness, elegance, plump hand feeling, moisture absorption and air permeability.
2. The invention adjusts the process conditions, and focuses on the control of the process temperature, the regenerated slices produced by recycled clean plastic bottles are firstly used, the viscosity temperature IV of the slices is controlled to be 0.72, the error is not more than 0.01, then the regenerated slices are controlled to be at the temperature of 155 ℃, the slices are dried for 6 hours, then the slices are melted at the temperature of 275 ℃ and 290 ℃, impurities in the melt are removed through 2 times of filtration, and then a specially-made spinneret plate is used, and the pressure of a component is controlled to be between 0.18 and 0.22 MPA. The hollow yarn product of FDY68D/24F is produced at the temperature of 22 ℃, the temperature of 90% +/-5, the wind speed of 0.65 +/-0.05 m/min and the spinning speed of 3800-4000 m/min.
Drawings
FIG. 1 is a schematic view showing a spinneret plate for producing regenerated hollow fibers having moisture absorption and air permeability according to the present invention;
FIG. 2 is a schematic top view of the structure of FIG. 1 according to the present invention;
FIG. 3 is a side view of the FIG. 1 structure of the present invention;
FIG. 4 is a schematic perspective view of FIG. 1 in partial section according to the present invention;
FIG. 5 is a schematic plan view, partially in section, of FIG. 1 in accordance with the present invention;
FIG. 6 is a schematic view of a flat pore structure according to the present invention.
The corresponding relationship between the reference numbers of the figures and the names of the components in the figures is as follows:
10. a main body; 101. a first circular plate; 102. a second circular plate;
11. mounting holes; 12. mounting grooves; 13. an inner cavity bore;
20. flat holes.
Detailed Description
The invention is further described below in connection with specific embodiments of the invention.
Example 1
As shown in fig. 1 to 6, which are schematic structural views of a spinneret plate for producing regenerated hollow filaments with moisture absorption and air permeability according to a preferred embodiment of the present invention, the spinneret plate for producing regenerated hollow filaments with moisture absorption and air permeability according to the present embodiment includes a body 10 and a flat hole 20, the body 10 includes a first circular plate 101 and a second circular plate 102, the second circular plate 102 is fixedly mounted at the bottom of the first circular plate 101, the first circular plate 101 has a thickness of 12mm, the first circular plate 101 and the second circular plate 102 have a thickness of 20mm, with an error value of not more than 0.1mm, the first circular plate 101 has a diameter of 75mm, with an error value of 0 to 0.2, the second circular plate 102 has a diameter of 65mm and an error value of 0 to 0.3, the first circular plate 101 has a mounting groove 12 on one side of its surface, the mounting groove 12 has a diameter of 3.5mm, the height of 6mm, the width of 2.7mm, and the horizontal plane and the vertical plane of the first circular plate 101 and the second circular plate 102 have a right-angle of 0.5mm, the chamfering device comprises a chamfering angle of 45 ℃ at an angle, wherein a first circular plate 101 is provided with an annular shape with the diameter of 32mm at the central position, 8 mounting holes 11 with the diameter of 4mm at equal distances are arranged on the annular shape, the first circular plate 101 is provided with an annular shape with the diameter of 54mm at the central position, 16 mounting holes 11 with the diameter of 4mm at equal distances are arranged on the annular shape, an inner cavity hole 13 is arranged below the mounting holes 11, the mounting holes 11 are communicated with the inner cavity hole 13, the inner wall of each mounting hole 11 is connected with the inner cavity hole 13 in an extending mode to form an included angle of 90 ℃, a cylindrical hole with the diameter of 2.5mm is formed in each inner cavity hole 13, a flat hole 20 is arranged below the inner cavity hole 13, the inner wall of each inner cavity hole 13 is connected with the flat hole 20 in an extending mode to form an included angle of 60 ℃, the flat holes 20 are vertically divided into four equal parts, each adjacent equal part forms an included angle of 90 ℃, the central position from the center of, the diameter of the outer ring is 1.6mm, the height from the connecting point of the inner cavity hole 13 and the flat hole 20 to the bottom of the second circular plate 102 is 0.5mm, the error is not more than 0.02mm, the surface roughness of the upper surface of the first circular plate 101 is 3.2, the surface roughness of the lower surface of the second circular plate 102 is 0.8, the inner wall roughness of the inner cavity hole 13 is 3.2, the roughness of the section of the main body 10 is 3.2, the mounting holes 11, the inner cavity hole 13 and the flat holes 20 are communicated, and the number of the flat holes 20 on the lower surface of the second circular plate 102 is the same as the number of the mounting holes 11 on the surface of the first circular plate 101.
In the embodiment, the flat holes 20 are vertically and equally divided into four equal parts, namely, a spinneret plate of a spinning core component is specially designed and customized, the conventional flat holes 20 are changed from 2 semi-circles to 4C, and products with certain fluffiness and curling effects are obtained by adjusting various process temperatures, so that the problems of no effects of softness, elegance, full hand feeling and moisture absorption and breathability are avoided.
Example 2
The invention provides a preparation method of regenerated hollow fiber with moisture absorption and air permeability, which is a preferred embodiment, process conditions are adjusted, process temperature is controlled, regenerated slices produced by using recycled clean plastic bottles are used, the viscosity temperature IV of the slices is controlled to be 0.72, the error is not more than 0.01, then the regenerated slices are controlled to be at 155 ℃, drying is carried out for 6 hours, melting is carried out at 275 ℃ and 290 ℃, impurities in the melt are removed through 2 times of filtration, and then a specially-customized spinneret plate is used, and the pressure of a component is controlled to be 0.18-0.22 MPA. The hollow yarn product of FDY68D/24F is produced at the temperature of 22 ℃ of cross air blowing, the humidity of 90% +/-5, the wind speed of 0.65 +/-0.05 m/min and the spinning speed of 3800-4000 m/min.
While the invention has been described in further detail in connection with specific embodiments thereof, it will be understood that the invention is not limited thereto, and that various other modifications and substitutions may be made by those skilled in the art without departing from the spirit of the invention, which should be considered to be within the scope of the invention as defined by the appended claims.
Claims (8)
1. A preparation method of a regenerated hollow yarn with moisture absorption and air permeability is characterized by comprising the following steps: the method comprises the following steps:
s1, drying the regenerated slices for 6 hours at the temperature of 155 ℃;
s2, melting the regenerated slices at 275-290 ℃, and removing impurities in the melt by 2 times of filtration;
s3, spinning by using a spinneret plate, wherein the pressure of a spinning control assembly is 0.18-0.22MPA, the temperature of cross air blowing is 22 ℃, the humidity is 90% +/-5, the wind speed is 0.65 +/-0.05 m/min, and the spinning speed is 3800-4000m/min in the spinning process.
2. A spinneret plate for producing regenerated hollow filaments having moisture absorption and air permeability, comprising a main body (10) and flat holes (20); the method is characterized in that: the flat hole (20) is vertically and equally divided into four equal parts, an included angle formed by every two adjacent equal parts is 90 ℃, the central position from the circle center to each equal part is 45 ℃, the diameter of an inner ring is 1.46mm, the diameter of an outer ring is 1.6mm, the height from a connecting point of the inner cavity hole (13) and the flat hole (20) to the bottom of the second circular plate (102) is 0.5mm, and the error is not more than 0.02 mm.
3. The spinneret plate for producing regenerated hollow fibers with moisture absorption and breathability according to claim 2, wherein: the main part (10) include first plectane (101) and second plectane (102), second plectane (102) fixed assembly in first plectane (101) bottom, the thick degree C of first plectane (101) is 12mm, the thick degree C of first plectane (101) and second plectane (102) is 20mm, the error value is no longer than 0.1mm, the diameter of first plectane (101) is 75mm, the error value is 0 ~ 0.2, the diameter of second plectane (102) is 65mm, the error value is 0 ~ 0.3.
4. The spinneret plate for producing regenerated hollow fibers with moisture absorption and breathability according to claim 3, wherein: first plectane (101) surface one side be provided with mounting groove (12), and mounting groove (12) are the diameter and are 3.5 mm's semicircle spread groove, high ℃ is 6mm, wide ℃ is 2.7mm, the horizontal plane and the vertical plane of first plectane (101) and second plectane (102) form the chamfer that right angle limit is 0.5mm, angle ℃ is 45 ℃.
5. The spinneret plate for producing regenerated hollow fibers with moisture absorption and breathability according to claim 4, wherein: first plectane (101) central point put and be provided with the diameter and be 32 mm's annular, and be provided with 8 mounting hole (11) that the diameter of equal distance is 4mm on the annular, first plectane (101) central point put and be provided with the diameter and be 54 mm's annular, and be provided with 16 equal distance's mounting hole (11) that the diameter is 4mm on the annular.
6. The spinneret plate for producing regenerated hollow fibers with moisture absorption and breathability according to claim 5, wherein: mounting hole (11) below be provided with inner chamber hole (13), mounting hole (11) and inner chamber hole (13) intercommunication, mounting hole (11) inner wall and inner chamber hole (13) extend to be connected and form contained angle 90 ℃, inner chamber hole (13) diameter is 2.5 mm's cylindrical hole, inner chamber hole (13) below be provided with flat hole (20), inner chamber hole (13) inner wall and flat hole (20) extend to be connected and form contained angle 60 ℃.
7. The spinneret plate for producing regenerated hollow fibers with moisture absorption and breathability according to claim 6, wherein: the surface roughness of the upper surface of the first circular plate (101) is 3.2, the surface roughness of the lower surface of the second circular plate (102) is 0.8, the roughness of the inner wall of the inner cavity hole (13) is 3.2, and the roughness of the section of the main body (10) is 3.2.
8. The spinneret plate for producing regenerated hollow fibers with moisture absorption and breathability according to claim 7, wherein: the mounting holes (11), the inner cavity holes (13) and the flat holes (20) are communicated, and the number of the flat holes (20) on the lower surface of the second circular plate (102) is the same as that of the mounting holes (11) on the surface of the first circular plate (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110299611.0A CN113122939A (en) | 2021-03-19 | 2021-03-19 | Preparation method of regenerated hollow yarn with moisture absorption and breathability and spinneret plate for production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110299611.0A CN113122939A (en) | 2021-03-19 | 2021-03-19 | Preparation method of regenerated hollow yarn with moisture absorption and breathability and spinneret plate for production |
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| Publication Number | Publication Date |
|---|---|
| CN113122939A true CN113122939A (en) | 2021-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110299611.0A Pending CN113122939A (en) | 2021-03-19 | 2021-03-19 | Preparation method of regenerated hollow yarn with moisture absorption and breathability and spinneret plate for production |
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| CN214612860U (en) * | 2021-03-19 | 2021-11-05 | 江苏永银化纤有限公司 | Spinneret plate for producing regenerated hollow yarns with moisture absorption and breathability |
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2021
- 2021-03-19 CN CN202110299611.0A patent/CN113122939A/en active Pending
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| JPH0726466A (en) * | 1993-07-08 | 1995-01-27 | Teijin Ltd | Cloth made from hollow fibers, the production thereof and cloth made from hollow fibers having chemical functions |
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| JPH0931745A (en) * | 1995-07-12 | 1997-02-04 | Mitsubishi Rayon Co Ltd | Acrylic continuous filament having new feeling and its production |
| JPH11152615A (en) * | 1997-11-17 | 1999-06-08 | Teijin Ltd | Spinneret for hollow yarn |
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Application publication date: 20210716 |