WO2010058480A1 - 多孔紡糸口金及び該多孔紡糸口金を用いた撚糸の製造方法 - Google Patents

多孔紡糸口金及び該多孔紡糸口金を用いた撚糸の製造方法 Download PDF

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Publication number
WO2010058480A1
WO2010058480A1 PCT/JP2008/071226 JP2008071226W WO2010058480A1 WO 2010058480 A1 WO2010058480 A1 WO 2010058480A1 JP 2008071226 W JP2008071226 W JP 2008071226W WO 2010058480 A1 WO2010058480 A1 WO 2010058480A1
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WO
WIPO (PCT)
Prior art keywords
spinneret
spinning
spinning hole
twisted yarn
discharge front
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PCT/JP2008/071226
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English (en)
French (fr)
Japanese (ja)
Inventor
八州男 野田
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東洲貿易株式会社
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Application filed by 東洲貿易株式会社 filed Critical 東洲貿易株式会社
Priority to CN200880132690.9A priority Critical patent/CN102292478B/zh
Priority to PCT/JP2008/071226 priority patent/WO2010058480A1/ja
Publication of WO2010058480A1 publication Critical patent/WO2010058480A1/ja
Priority to HK12106076.0A priority patent/HK1165513A1/zh

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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
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/02—Spinnerettes

Definitions

  • the present invention relates to a porous spinneret suitable for producing, for example, a multifilament twisted yarn and a method for producing a twisted yarn using the porous spinneret.
  • Multifilament twisted yarns made of synthetic fibers such as polyester are widely used as materials for fabrics and knitted fabrics, for example.
  • Such a multifilament twisted yarn is obtained by discharging a synthetic resin such as polyester from a spinning hole of a spinneret in which a large number of spinning holes are dispersed on the front surface of the discharge, and performing melt spinning. It is manufactured by twisting a fiber bundle made of fibers.
  • a multifilament twisted yarn manufactured by discharging a synthetic resin such as polyester from the spinning hole of the spinneret having the above-described conventional structure to melt spinning and twisting the obtained fiber bundle is used to knit, fabric
  • fabrics such as these are produced, there is a problem that the touch feeling is hard and a soft texture cannot be obtained sufficiently, and that stretchability cannot be obtained sufficiently.
  • the twisted form is difficult to stabilize, there is a problem that variations in quality are likely to occur.
  • the present invention has been made in view of such a technical background, and is capable of producing a multifilament twisted yarn that can sufficiently produce a soft texture, has sufficient stretchability, and has little variation in quality. It aims at providing the manufacturing method of a spinneret and twisted yarn.
  • the present invention provides the following means.
  • a plurality of irregular shapes along an imaginary curve such as an arc extending in a clockwise direction from the central portion of the discharge front face in a radially outward direction when the discharge front face of the spinneret is viewed from the front A plurality of spinning hole groups in which a plurality of spinning holes are spaced apart from each other are formed on the discharge front surface, and the plurality of spinning hole groups are arranged apart from each other in the circumferential direction of the spinneret.
  • Porous spinneret characterized by
  • a plurality of irregularities along a virtual curve such as an arc extending in a counterclockwise direction while extending radially outward from the center of the discharge front face when the discharge front face of the spinneret is viewed from the front
  • a plurality of spinning hole groups in which shaped spinning holes are spaced apart from each other are formed on the discharge front surface, and the plurality of spinning hole groups are spaced apart from each other in the circumferential direction of the spinneret.
  • a porous spinneret characterized by that.
  • a multifilament twisted yarn by discharging S-twist to a fiber bundle composed of a plurality of discharged synthetic fibers, and a step of discharging the modified cross-section synthetic fiber from the spinning hole of the porous spinneret according to 1 or 2 above
  • a method for producing a twisted yarn comprising the steps of:
  • a step of discharging the modified cross-section synthetic fiber from the spinning hole of the porous spinneret according to the above item 3 or 4, and a multifilament twisted yarn by Z-twisting the fiber bundle composed of the plurality of discharged synthetic fibers A method for producing a twisted yarn comprising the steps of:
  • the fiber bundle discharged from the spinning hole of the perforated spinneret is Z-twisted to produce a multifilament twisted yarn and a fabric such as a knitted fabric or woven fabric is produced using this twisted yarn, A fabric having a texture and sufficient stretchability, and having a good appearance quality with little variation in quality can be obtained.
  • the fabric (knitted fabric, woven fabric, etc.) according to the invention of [8] has a soft texture and sufficient stretchability, and has little quality variation and good appearance quality.
  • FIG. 2 is a cross-sectional view taken along line XX in FIG. Note that the cross-sectional view taken along the line YY in FIG. It is a schematic explanatory drawing of the manufacturing method of the twisted yarn using the porous spinneret of FIG. (A) is a front view which shows the discharge front of the porous spinneret based on other embodiment of this invention, (b) is the same front view which added the auxiliary line (imaginary line) for description.
  • FIG. 1 It is a schematic explanatory drawing of the manufacturing method of the twisted yarn using the porous spinneret of FIG. It is a figure which shows an example of the shape of a spinning hole.
  • A is a front view showing the discharge front of the porous spinneret used in Comparative Example 1
  • (b) is a front view showing the discharge front of the porous spinneret used in Comparative Example 2.
  • FIG. 1 shows an embodiment (first embodiment) of a porous spinneret (1) according to the present invention.
  • this perforated spinneret (1) when the substantially circular discharge front face (11) is viewed from the front, it is bent and extended clockwise from the center of the discharge front face (11) toward the outside in the radial direction.
  • the spinning hole (2) on the innermost side of the spinning hole (2) and the eighth spinning hole group (31H) has a virtual circle (FIG. 1 (FIG. 1 In b), it is arranged so as to be placed on an arc line (virtual line) of a circle indicated by a one-dot chain line on the innermost side.
  • the second spinning hole (2) from the innermost side of each spinning hole group (31A to H) is a virtual circle centering on the center position of the discharge front face (11) that is circular when viewed from the front. It arrange
  • the outermost spinning holes (2) of the spinning hole groups (31A to 31H) are also arranged in the same manner (see FIG. 1 (b)).
  • the spinning hole that does not fall on the virtual curve (30) is not formed, that is, only the spinning hole (2) that falls on the virtual curve (30) is formed.
  • the interval between the innermost spinning holes (2) adjacent in the circumferential direction ⁇ the interval between the second spinning holes (2) from the innermost side adjacent in the circumferential direction ⁇ Spacing between the third spinning holes (2) from the innermost side adjacent in the circumferential direction ⁇ Spacing between the fourth spinning holes (2) from the innermost side adjacent in the circumferential direction ⁇ Fastest adjacent in the circumferential direction
  • the interval between the spinning holes adjacent to each other in the circumferential direction is configured to gradually increase gradually toward the radially outer side.
  • the shape (front view shape) of the spinning hole (2) on the discharge front surface (11) is a substantially cross-shaped irregular shape as shown in FIG. That is, the deformed shape of the discharge front surface (11) of the spinning hole (2) includes a substantially cross-shaped main hole portion (2a) and enormous hole portions formed at the tip portions of the main hole portion (2a) ( 2b) (2b) (2b) (see FIG. 6).
  • the cross axis direction of the main hole portion (2a) of the spinning hole (2) is arranged to face at least two different directions.
  • the cross axis direction of the main hole portion (2a) of the spinning hole (2) constituting the first spinning hole group (31A) and the second spinning hole The axial direction of the cross of the main hole portion (2a) of the spinning hole (2) constituting the group (31B) is different.
  • the main hole portion (2) of the spinning holes (2) constituting the first spinning hole group (31A), the third spinning hole group (31C), the fifth spinning hole group (31E), and the seventh spinning hole group (31G) are all the same.
  • the main hole portion (2) of the spinning holes (2) constituting the second spinning hole group (31B), the fourth spinning hole group (31D), the sixth spinning hole group (31F), and the eighth spinning hole group (31H) are all the same.
  • the spinning hole (2) formed in the perforated spinneret (1) is located from the discharge rear surface side to the discharge front surface side in the region on the discharge front surface (11) side of the base (1). The diameter is reduced.
  • the synthetic resin is supplied to the porous spinneret (1) to discharge the modified cross-section synthetic fiber from the spinning hole (2) of the porous spinneret (1).
  • a multifilament twisted yarn (35) is obtained by applying S twist while bundling synthetic fibers.
  • the discharged synthetic fibers are arranged in the same manner as the arrangement of the spinning holes (2) in the porous spinneret (1), and are obtained by applying S twist to the fiber bundle in such an arrangement.
  • a fabric such as a knitted fabric or a woven fabric is manufactured using the multifilament twisted yarn (35)
  • a soft texture and sufficient stretchability can be obtained, and a fabric with little variation in quality and good appearance quality can be obtained.
  • a cooling air flow is blown from the lower side to the upper side of the fiber discharged from the spinning hole (2) of the porous spinneret (1). Assuming that most of the spinning holes (2) do not overlap (over) in the vertical direction, the cooling air can be irradiated to almost all the spinning fibers in an equal amount. A twisted yarn with little variation is obtained.
  • the cross axis direction of the main hole portion (2a) of the spinning hole (2) is arranged to face at least two different directions. Therefore, the twisted form of the twisted yarn can be further stabilized, and a twisted yarn with less quality variation can be obtained.
  • FIG. 4 shows a second embodiment of the porous spinneret (1) according to the present invention.
  • this perforated spinneret (1) in a state where the substantially circular discharge front face (11) is viewed from the front, the pipe spinneret (1) is bent in the counterclockwise direction while extending radially outward from the central portion of the discharge front face (11).
  • the spinning hole (2) on the innermost side of the spinning hole (2) and the eighth spinning hole group (41H) is a virtual circle centered on the center position of the discharge front surface (11) that is circular in front view (FIG. 4 ( In b), it is arranged so as to be placed on an arc line (virtual line) of a circle indicated by a one-dot chain line on the innermost side.
  • the second spinning hole (2) from the innermost side of each spinning hole group (41A to H) is a virtual circle centered on the center position of the discharge front face (11) that is circular when viewed from the front. It arrange
  • the outermost spinning holes (2) of the spinning hole groups (41A to 41H) are also arranged in the same manner (see FIG. 4 (b)).
  • the spinning hole that does not fall on the virtual curve (40) is not formed, that is, only the spinning hole (2) that falls on the virtual curve (40) is formed.
  • the interval between the innermost spinning holes (2) adjacent in the circumferential direction ⁇ the interval between the second spinning holes (2) from the innermost side adjacent in the circumferential direction ⁇ Spacing between the third spinning holes (2) from the innermost side adjacent in the circumferential direction ⁇ Spacing between the fourth spinning holes (2) from the innermost side adjacent in the circumferential direction ⁇ Fastest adjacent in the circumferential direction
  • the interval between the spinning holes adjacent to each other in the circumferential direction is configured to gradually increase gradually toward the radially outer side.
  • the shape (front view shape) of the spinning hole (2) on the discharge front surface (11) is a substantially cross-shaped irregular shape as shown in FIG. That is, the deformed shape of the discharge front surface (11) of the spinning hole (2) includes a substantially cross-shaped main hole portion (2a) and enormous hole portions formed at the tip portions of the main hole portion (2a) ( 2b) (2b) (2b) (see FIG. 6).
  • the cross axis direction of the main hole portion (2a) of the spinning hole (2) is arranged to face at least two different directions.
  • the cross axis direction of the main hole portion (2a) of the spinning hole (2) constituting the first spinning hole group (41A) and the second spinning hole The axial direction of the cross of the main hole portion (2a) of the spinning hole (2) constituting the group (41B) is different.
  • the main hole portion (2) of the spinning holes (2) constituting the first spinning hole group (41A), the third spinning hole group (41C), the fifth spinning hole group (41E), and the seventh spinning hole group (41G) are all the same.
  • the main hole portion (2) of the spinning holes (2) constituting the second spinning hole group (41B), the fourth spinning hole group (41D), the sixth spinning hole group (41F), and the eighth spinning hole group (41H) are all the same.
  • the spinning hole (2) formed in the perforated spinneret (1) is located from the discharge rear surface side to the discharge front surface side in the region on the discharge front surface (11) side of the base (1). The diameter is reduced.
  • the synthetic resin is supplied to the porous spinneret (1) to discharge the modified cross-section synthetic fiber from the spinning hole (2) of the porous spinneret (1).
  • a multifilament twisted yarn (45) is obtained by Z-twisting the synthetic fiber while being bundled.
  • the multi-fiber obtained by Z-twisting the fiber bundles in the arrangement mode is arranged.
  • a fabric such as a knitted fabric or a woven fabric is manufactured using the filament twisted yarn (45)
  • a soft texture and sufficient stretchability can be obtained, and a fabric with less quality variation and good appearance quality can be obtained.
  • an air flow for cooling is blown from the lower side to the upper side of the fiber discharged from the spinning hole (2) of the porous spinneret (1). Assuming that most of the spinning holes (2) do not overlap (over) in the vertical direction, the cooling air can be irradiated to almost all the spinning fibers in an equal amount. A twisted yarn with little variation is obtained.
  • the cross axis direction of the main hole portion (2a) of the spinning hole (2) is arranged to face at least two different directions. Therefore, the twisted form of the twisted yarn can be further stabilized, and a twisted yarn with less quality variation can be obtained.
  • the synthetic resin (that is, the raw material of the synthetic fiber) supplied to the porous spinneret (1) is not particularly limited, and examples thereof include a polyester resin.
  • the shape of the spinning hole (2) on the discharge front surface (11) is a substantially cross-shaped irregular shape as shown in FIG. 6, but is not particularly limited to such a configuration.
  • any shape may be used as long as it is an irregular shape (non-circular shape).
  • a polygonal shape such as a triangular shape or a quadrangular shape may be employed.
  • the said virtual curve (30) is formed in the substantially semicircular arc shape, it is not specifically limited to such a structure, From the center part of the said discharge front surface (11). Any curve may be used as long as the curve extends in the clockwise direction while facing outward in the radial direction. For example, the curve curves in the clockwise direction while going outward in the radial direction from the central portion of the discharge front surface (11). It may be a parabola extended.
  • the said virtual curve (40) is formed in the substantially semicircular arc shape, it is not specifically limited to such a structure, From the center part of the said discharge front surface (11). Any curve may be used as long as it is curved outwardly extending in the counterclockwise direction while facing outward in the radial direction.
  • the counterclockwise direction is directed radially outward from the center of the discharge front surface (11). It may be a parabola or the like that is bent and bent.
  • one spinning hole group (31) (41) is comprised from six spinning holes (2), it is not specifically limited to such a structure, Two or more Any configuration having a plurality of spinning holes may be used.
  • one spinning hole group (31) (41) is preferably composed of three or more spinning holes (2), particularly preferably composed of 4 to 20 spinning holes (2). It is.
  • the number of spinning holes (2) in each spinning hole group (31) (41) may be the same number (for example, six) as in the above embodiment, or may be a different number. .
  • the number of installation of the spinning hole group (31) (41) is 8 (8 groups), it is not limited to such an installation number in particular, 2 or more ( (Multiple groups).
  • the number of the spinning hole groups (31) and (41) is preferably 4 to 16 (groups) from the viewpoint of sufficiently obtaining the above-described effects.
  • the method for producing the porous spinneret (1) and the twisted yarn according to the present invention is not particularly limited to that of the above-described embodiment, and any design can be used as long as it does not depart from the spirit of the claims. Changes are also allowed.
  • Example 1 By supplying the polyester resin to the porous spinneret (1) of FIG. 1 described in the previous section, the irregular cross-section fibers are discharged from the spinning hole (2), and DTY processing is performed on the discharged 48 irregular cross-section fibers ( By applying (S twist), a 55 dtex (50 denier) multifilament twisted yarn (35) was produced (see FIG. 3). A knitted fabric was obtained by mesh knitting using this twisted yarn (35).
  • the thickness (L) of the porous spinneret (1) was set to 23 mm, and the diameter (D) of the discharge front surface (11) was set to 83 mm (see FIG. 2).
  • the diameter of the innermost virtual circle is 32.12 mm
  • the diameter of the second virtual circle from the innermost side is 48.85 mm
  • the diameter of the third virtual circle from the innermost side is 60.29 mm
  • the diameter of the fourth virtual circle from the innermost side is 68.88 mm
  • the diameter of the fifth virtual circle from the innermost side is 74.20 mm
  • the outermost virtual circle (that is, the sixth virtual circle from the innermost side)
  • the diameter of the (imaginary circle) was 76.00 mm (see FIG. 1B).
  • the radius of the substantially semicircular arc-shaped virtual curve (30) was set to 19.00 mm (see FIG. 1B).
  • Example 2 Example 1 except that the thickness of the twisted yarn (35) is adjusted to 82.5 dtex (75 denier) by adjusting the discharge pressure when discharging the irregular cross-section fiber from the spinning hole (2). I got a knitted fabric.
  • Example 3 A knitted fabric was obtained in the same manner as in Example 2 except that the shape of the discharge front surface (11) of the spinning hole (2) was all designed to be an equilateral triangle. The arrangement mode of the spinning holes (2) was also the same as in Example 2.
  • Example 4 The discharge front surface (11) of the spinning holes (2) constituting the second spinning hole group (31B), the fourth spinning hole group (31D), the sixth spinning hole group (31F), and the eighth spinning hole group (31H).
  • a knitted fabric was obtained in the same manner as in Example 2 except that the shape was changed to a substantially triangular shape and a regular triangle was designed.
  • the arrangement mode of the spinning holes (2) was also the same as in Example 2.
  • Example 1 A knitted fabric was obtained in the same manner as in Example 2 except that the arrangement of the spinning holes in the porous spinneret (91) was set to be concentric (the number of spinning holes: 48) shown in FIG. The size and shape of the spinning hole (92) were the same as in Example 2.
  • Example 2 A knitted fabric was obtained in the same manner as in Example 2 except that the arrangement of the spinning holes in the porous spinneret (91) was set to the lattice shape (number of spinning holes: 48) shown in FIG. The size and shape of the spinning hole (92) were the same as in Example 2.
  • ⁇ Texture evaluation method The knitted fabric was touched by hand to check its tactile sensation and evaluated based on the following criteria. “ ⁇ ”: Tactile feeling is very soft and has a very soft texture “O”: Tactile feeling is soft and the texture is good “ ⁇ ”: Tactile feeling is felt and the texture is not good.
  • ⁇ Elasticity evaluation method> The stretch rate of each knitted fabric was measured based on the following stretch rate measurement method of the knitted fabric, and the stretchability was evaluated based on the following criteria. (Measurement method of stretch rate of knitted fabric) Based on the constant load method of JIS L1018 (load 490.4 cN), the stretch rate in the weft direction (course direction) of the knitted fabric was measured. " ⁇ " ... Elongation rate of the knitted fabric is 40% or more "O” ... Elongation rate of the knitted fabric is 30% or more and less than 40% "X” ... Elongation rate of the knitted fabric is less than 30% thing.
  • ⁇ Appearance quality evaluation method> The knitted fabric was visually inspected for the presence of horizontal steps (surface streaks that were visually recognized as thin streaks due to irregular reflection due to variations in the cross-sectional shape of the yarn, etc.) and evaluated based on the following criteria. “ ⁇ ”: No row is recognized and the surface appearance of the knitted fabric is very good “ ⁇ ”: A little row is recognized “ ⁇ ”: A row is remarkably recognized.
  • the knitted fabrics of Examples 1 to 4 of the present invention had a soft texture, excellent stretchability, and very good appearance quality.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
PCT/JP2008/071226 2008-11-21 2008-11-21 多孔紡糸口金及び該多孔紡糸口金を用いた撚糸の製造方法 WO2010058480A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN200880132690.9A CN102292478B (zh) 2008-11-21 2008-11-21 多孔纺丝头和使用该多孔纺丝头的捻丝的制造方法
PCT/JP2008/071226 WO2010058480A1 (ja) 2008-11-21 2008-11-21 多孔紡糸口金及び該多孔紡糸口金を用いた撚糸の製造方法
HK12106076.0A HK1165513A1 (zh) 2008-11-21 2012-06-20 多孔紡絲頭和使用該多孔紡絲頭的捻絲的製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2008/071226 WO2010058480A1 (ja) 2008-11-21 2008-11-21 多孔紡糸口金及び該多孔紡糸口金を用いた撚糸の製造方法

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WO2010058480A1 true WO2010058480A1 (ja) 2010-05-27

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Publication number Priority date Publication date Assignee Title
CN104508193B (zh) * 2012-08-03 2016-10-26 欧瑞康纺织有限及两合公司 纺丝喷嘴设备

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JPS50145608A (zh) * 1974-05-13 1975-11-22
JPS6440616A (en) * 1987-08-07 1989-02-10 Toray Industries Production of specialty bulky yarn
JPH02210011A (ja) * 1989-02-03 1990-08-21 Tanaka Kikinzoku Kogyo Kk 異形糸湿式紡糸用口金及びその製造方法
JPH04300319A (ja) * 1991-03-25 1992-10-23 Asahi Chem Ind Co Ltd ポリエステル繊維の製造方法、及び紡糸口金
JP2004124339A (ja) * 2002-10-07 2004-04-22 Nan Ya Plast Corp 複数本細デニールポリエステル予備延伸ヤーンの製造方法及びその方法により製造された複数本細デニールポリエステル予備延伸ヤーン

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CN2239973Y (zh) * 1995-12-01 1996-11-13 中国石油化工科技开发公司 纺制四孔三维立体卷曲涤纶短纤维用喷丝板
JPH1112883A (ja) * 1997-06-26 1999-01-19 Unitika Ltd 伸縮性織編物の製造方法
CN2496884Y (zh) * 2001-09-13 2002-06-26 江苏金雪集团有限公司 九孔纺丝用喷丝板
CN2540420Y (zh) * 2002-07-01 2003-03-19 上海大峰化纤有限公司 十一孔三维立体卷曲纤维用喷丝板
DE102004038462A1 (de) * 2003-08-29 2005-03-24 Maschinenfabrik Rieter Ag Spinnkopf

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50145608A (zh) * 1974-05-13 1975-11-22
JPS6440616A (en) * 1987-08-07 1989-02-10 Toray Industries Production of specialty bulky yarn
JPH02210011A (ja) * 1989-02-03 1990-08-21 Tanaka Kikinzoku Kogyo Kk 異形糸湿式紡糸用口金及びその製造方法
JPH04300319A (ja) * 1991-03-25 1992-10-23 Asahi Chem Ind Co Ltd ポリエステル繊維の製造方法、及び紡糸口金
JP2004124339A (ja) * 2002-10-07 2004-04-22 Nan Ya Plast Corp 複数本細デニールポリエステル予備延伸ヤーンの製造方法及びその方法により製造された複数本細デニールポリエステル予備延伸ヤーン

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CN102292478A (zh) 2011-12-21
CN102292478B (zh) 2014-01-29

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