WO2003060204A1 - Filiere, dispositif d'ensimage, dispositif de production et procede de production pour fibres synthetiques - Google Patents

Filiere, dispositif d'ensimage, dispositif de production et procede de production pour fibres synthetiques Download PDF

Info

Publication number
WO2003060204A1
WO2003060204A1 PCT/JP2002/012475 JP0212475W WO03060204A1 WO 2003060204 A1 WO2003060204 A1 WO 2003060204A1 JP 0212475 W JP0212475 W JP 0212475W WO 03060204 A1 WO03060204 A1 WO 03060204A1
Authority
WO
WIPO (PCT)
Prior art keywords
spinneret
spinning
elastic fiber
guide member
oiling
Prior art date
Application number
PCT/JP2002/012475
Other languages
English (en)
Japanese (ja)
Inventor
Yoshinobu Ohie
Kenichiro Kodaka
Tsutomu Fujie
Seishu Hayashi
Original Assignee
Toyo Boseki Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2001397133A external-priority patent/JP3888436B2/ja
Priority claimed from JP2001399245A external-priority patent/JP2003201619A/ja
Priority claimed from JP2002057713A external-priority patent/JP2003253521A/ja
Priority claimed from JP2002057712A external-priority patent/JP2003253520A/ja
Application filed by Toyo Boseki Kabushiki Kaisha filed Critical Toyo Boseki Kabushiki Kaisha
Priority to AU2002349612A priority Critical patent/AU2002349612A1/en
Publication of WO2003060204A1 publication Critical patent/WO2003060204A1/fr

Links

Classifications

    • 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
    • D01F6/70—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyurethanes
    • 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
    • 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
    • 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
    • D01D5/096—Humidity control, or oiling, of filaments, threads or the like, leaving the spinnerettes

Definitions

  • the present invention relates to a spinneret, an oiling device, a manufacturing device, and a manufacturing method for synthetic fibers. Details are as follows.
  • the present invention firstly relates to a spinneret for spinning a plurality of yarns and then dividing, solidifying and taking up the yarns, and a method for producing synthetic fibers using the spinneret.
  • the present invention relates to a spinneret capable of suppressing physical property fluctuation between a plurality of yarns.
  • the present invention is suitable for use in producing polyurethane fibers, polyester fibers, polyamide fibers, polyolefin fibers, and the like.
  • the present invention relates to a spinneret capable of extending the life cycle of 'and stably discharging a polymer.
  • the present invention provides an apparatus for producing an elastic fiber made of polyurethane or the like used for clothing and the like, a method for producing the elastic fiber, and an oil ring for a continuously spun elastic fiber. And an oiling device for the same.
  • a synthetic fiber spinning device includes a spinneret for spinning a polymer, an oiling device for oiling a yarn coming out of a spinning hole of the spinneret, and a winding roller for winding the oiled yarn.
  • the spinneret used in such a spinning device has a circular arrangement and a diamond arrangement for the arrangement of the spinning holes, mainly for the effective use of the area of the spinneret, for reasons such as ease of handling and maintenance. , Grid array, staggered array, etc. An article having an arrangement having the same was used.
  • the pressure applied to the filter medium 100 is generally high, and foreign substances accumulate on the filter medium 100 with continued use.
  • the pressure applied to the filter medium 100 increases, and as shown in FIG. 14, the entire filter medium 100 or the structural members are deformed, and the spinning holes 10 3 of the spinneret 101 are rotated.
  • the equipment is designed to prevent damage caused by scratching of yarn in the synthetic fiber spinning equipment. Oil is applied to the yarn to prevent it and to provide smoothness and facilitate handling.
  • a guide system in which oil is supplied to a yarn by supplying oil to a groove provided in a guide portion, guiding the yarn to the groove, and running the yarn.
  • the spun yarn comes into contact with the application surface before or at the same time as the oil is applied, before being wound by the winder.
  • the spun yarn is extremely unstable above the point where it comes into contact with the surface to which oil is applied, because it is not completely solidified. Therefore, the fluctuation of the frictional resistance at the contact surface amplifies the unstable state of the thread and adversely affects the properties of the wound thread, particularly, the homogeneity.
  • the present applicant has proposed a guide for applying oil supplied from an oil supply hole formed in a groove to the thread by passing the thread through the groove.
  • An oiling device having at least a portion, wherein the groove has a vertex having a tangent to a vertical line (of the yarn), and an angle of receding from the vertex with respect to the vertical line (of the yarn).
  • the oiling device described in Japanese Patent Publication No. 5-230706 is an excellent invention in that the contact area between the yarn and the guide is as small as possible and oil can be supplied while reducing friction. It is.
  • polyurethane elastic fibers have attracted attention due to their high elastic properties.
  • the polyurethane elastic fiber is used for various applications because a small amount of the polyurethane elastic fiber can impart a value to the fabric such as extensibility, fit, shape stability and the like.
  • melt spinning method is a method in which a molten polymer is spun from a spinneret, the spun fiber is cooled and solidified by cold air, and then oiled and wound around a roll.
  • the winding of the elastic fiber was carried out in the same manner as polyester or nylon fiber with low elasticity. That is, the melted polymer is extruded from an extruder (not shown) to a spinneret, and elastic fibers are spun from each spinning hole almost vertically downward. Each elastic fiber is cooled and solidified by blowing cool air by a blower, and after the oiling agent is applied by a boiler, the arrangement direction of the elastic fiber is twisted by 90 ° by a guide member. The elastic fiber whose orientation has been changed in this way is adjusted in tension via two godet rollers, sent out to a take-up roller, and taken up in each opening.
  • the elastic fibers spun from the spinneret are twisted, and the arrangement direction is rotated 90 ° and wound up. And the frictional force received from the yarn path length and the guide member are different. For this reason, there has been a problem that did not occur when winding conventional polyester or nylon. In other words, polyurethane elastic fibers are more easily elastically deformed than polyester or the like, and if wound with different yarn path lengths and frictional forces as described above, the physical properties of the viscous fibers W between the rolls This resulted in the problem that the product characteristics varied greatly.
  • the elastic fiber spun from the spinneret is wound up with almost no twist, while at the mouth located at the end. Since the elastic fiber spun from the die is wound with a large twist angle change by the guide member, the frictional resistance associated with contact with the guide member is large.
  • the present invention provides the following invention for the purpose of solving the above-mentioned conventional problems.
  • a first object of the present invention is to minimize the difference in temperature and the cooling state of a plurality of yarns produced from a spinning machine table until they are cooled from the inside of the spinning hole. It is an object of the present invention to provide a spinneret capable of suppressing physical property fluctuations between yarns.
  • the first object of the present invention is a spinneret for producing a plurality of yarns, wherein a plurality of spinning holes are formed in a single base plate, and the spinning holes are arranged in substantially one row. This is achieved by the spinneret.
  • a plurality of spinning holes are drilled in the spinneret plate alone, and the spinning holes are arranged in approximately one row In this way, the temperature fluctuations on the spinneret surface are small, and the cooling air temperature due to the cooling of the yarns in the front row does not increase due to the single-row spinning cooling, and the cooling air hitting the front row has no effect. For the first time, uniform yarn can be spun without any change in the cooling state.
  • the spinneret according to the present invention preferably has eight or more spinning holes. This is because the effect of the present invention is easily exerted in a field where the number of spinning holes is increased, that is, in a field where high productivity is required.
  • cooling air is sent to the row from a substantially vertical direction to the polymer discharged from the spinneret in which the spinning holes are arranged in one row.
  • the temperature of the cooling air received by each yarn becomes uniform, the temperature of the spinneret becomes uniform in the row direction, and the temperature difference between the spinning holes becomes smaller.
  • the present invention is particularly preferable when it is used for the production of a melt-type elastic fiber, since it is particularly effective.
  • Elastic yarns generally have extremely low spinning tension compared to general-purpose yarns such as polyester yarns and polyamide yarns. The physical properties of the elastic yarns are greatly affected by the temperature of the spinneret and the temperature of the spinning cooling air. This is because not only gender differences appear remarkably, but also yarn skew in the cooling section causes yarn gap differences, which causes yarn spots and yarn breakage.
  • the spinning holes are required to be drilled substantially in a line, and the number of filaments is 1 to 3 in consideration of a necessary spinning hole distance in order to facilitate the fiber separation operation. Books are preferred.
  • a second object of the present invention is to improve the production efficiency by extending the filter material replacement cycle without causing discharge failure by effectively drawing out the filtration capacity of the filter material installed in the spinneret. It is to provide a possible spinneret.
  • the present invention provides a spinneret provided with a filter medium for removing foreign matter from a molten polymer above a spinneret, and after passing through the filter medium. And a guide groove for guiding the molten polymer to the spinning hole is provided.
  • the groove for guiding the polymer after passing through the filtering material according to the present invention to the spinning hole is preferably provided radially around the spinning hole. With this arrangement, the polymer that has passed through the filter material can be smoothly guided to the spinning hole.
  • the spinneret used in the present invention has one spinning hole for one filter medium, the effect is remarkable. That is, as in the case of a spinneret for a monofilament, the effect of the present invention is remarkably exhibited when the area of the introduction portion at the upper portion of the spinning hole is smaller or smaller than the area of the filtering material.
  • the shape and depth of the groove are design items in consideration of the size of the spinneret, the strength of the filtering material, and the like, and are not particularly limited. However, it is important that the polymer is always guided to the yarn hole. Otherwise, the polymer will not eventually pass through the filter.
  • the grooves of the spinneret are preferably dispersed over the entire surface of the filter medium, and have a small width and a large number. If the width is large, the groove may be closed due to the deformation of the filter medium.If the groove is provided locally, or if the number is small, the filter capacity of the filter medium cannot be fully drawn out or discharged. Is not performed smoothly.
  • the projection formed as a result of providing the groove may have an acute angle toward the filter medium. Thereby, the area of contact with the filter medium can be reduced while maintaining the strength of the projections, and the filter medium can be used effectively.
  • the protrusion formed as a result of providing the groove in the spinneret may be in contact with the filter medium from the beginning of the installation of the filter medium. This is because even in such a state, the effect of the spinneret according to the present invention works effectively.
  • the spinneret according to the present invention is preferably used for spinning an elastic yarn represented by polyurethane. This is because, as compared with general-purpose yarns such as polyester yarns and polyamide yarns, yarn spots are generated due to disturbance, and the effects of the present invention are particularly remarkable as soon as possible.
  • a third object of the present invention is to secure the contact between the elastic fiber and the oiling guide. It is an object of the present invention to provide an oiling device for ensuring the quality of the elastic fiber while preventing the frictional force due to the contact with the oiling device from becoming excessive while performing the oiling surely.
  • the third object of the present invention is a boiler including: an oil applying section for applying oil to elastic fibers; and a guide member for guiding the elastic fibers to the oil applying section.
  • the oil applying section has a groove for guiding the elastic fiber, and an oil supply hole formed in the groove for applying oil to the elastic fiber passing through the groove.
  • the groove width of the narrowest portion adjacent to the apex is 1.5 mm or less.
  • the surface roughness of the vicinity of the apex of the oil applying portion and the guide member is preferably 2S to: L0S.
  • the non-woven fiber preferably has a number of filaments of 2 or less, a total fineness of 88 or less, and is preferably a melt-spun elastic fiber.
  • a fourth object of the present invention is to provide an elastic fiber manufacturing apparatus comprising: a plurality of spinning holes; and a take-up roller for winding the elastic fibers spun from the spinning holes.
  • the holes are arranged in a line, and the arrangement direction is substantially parallel to the axial direction of the winding roller, thereby achieving the elastic fiber manufacturing apparatus.
  • the manufacturing apparatus is provided between the spinning hole and the winding roller, and guides an elastic fiber spun from the spinning hole substantially vertically downward to the winding opening roller.
  • the guide member is arranged at an interval wider than the arrangement interval of the spinning holes, and the guide member is vertically arranged from the spinning hole to the guide member due to the difference in the arrangement interval.
  • the difference between the maximum value and the minimum value may be configured to be 1.5 ° or less.
  • the manufacturing apparatus is provided at a position from the spinning hole to the guide member.
  • the apparatus may further include an oiling device for oiling the elastic fiber from the pressing direction of the guide member for inclining the elastic fiber.
  • the portion from the spinning hole to the guide member means a portion including the guide member, and therefore, the guide member may be provided with an oiling device.
  • the present invention provides an elastic fiber spun from a plurality of spinning holes arranged side by side in a row by a winding roller having a rotation axis substantially parallel to the arrangement direction of the spinning holes.
  • An object of the present invention is to provide a method for producing an elastic fiber characterized by winding.
  • a guide member may be disposed between the spinning hole and the winding roller at an interval wider than an interval between the spinning holes, and the guide member may move the elastic fiber substantially vertically downward by the winding roller.
  • the difference from the value can be less than 1.5 °.
  • an oil agent is applied to the elastic fiber from a pressing direction of the guide member for inclining the elastic fiber at a position from the spinning hole to the guide member.
  • the portion from the spinning hole to the guide member means a portion including the guide member, and therefore, an oil agent can be applied to the guide member.
  • FIG. 1 is a perspective view showing one embodiment of a spinneret according to the present invention.
  • FIG. 2 is a perspective view conceptually showing a melt spinning apparatus having the spinneret shown in FIG. -FIG. 3 is a perspective view showing a conventional spinneret.
  • Fig. 4 shows another embodiment of the spinneret according to the present invention.
  • Fig. 4 (a) is a plan view
  • Fig. 4 (b) is a longitudinal sectional view
  • Fig. 4 (c) shows the spinneret together with a filtering material. It is sectional drawing which shows the spinneret pack accommodated in the pack.
  • FIG. 5 is a front view schematically showing a melting prevention device including one embodiment of the oiling device according to the present invention.
  • FIG. 6 is a side view schematically showing the melt spinning apparatus shown in FIG. 5 together with other accessory devices.
  • FIG. 7 is an enlarged longitudinal sectional view of the oiling device shown in FIG.
  • FIG. 8 is a front view of the oiling device of FIG.
  • FIG. 9 is a perspective view showing an embodiment of a guide member which is a component of the oiling device according to the present invention.
  • FIG. 10 is a partial front view of FIG.
  • FIG. 11 is a perspective view showing a melt spinning apparatus for comparison with the melt spinning apparatus of FIG.
  • FIG. 12 is a plan view showing the positional relationship between the spinneret of FIG. 11 and a guide member.
  • FIG. 13 is a longitudinal sectional view showing a conventional spinneret.
  • FIG. 14 is a longitudinal sectional view showing a change with time of the diameter of the spinneret of FIG.
  • a plurality of spinning holes 2 are formed in a spinneret 1, and the spinning holes 2 are arranged in substantially one row.
  • the spinneret 1 has eight spinning holes 2.
  • the number of the spinning holes 2 is preferably 8 mm or more.
  • the material and dimensions of the spinneret used for the spinneret 1 are not particularly limited, and it is sufficient that no deformation or distortion occurs under the conditions of the polymer used.
  • the cross-sectional shape of the fiber obtained by using the spinneret 1 is not particularly limited, and may be represented by a round shape, a triangular shape, a hollow shape, or a cross shape, and may be an aggregate having a different cross section.
  • the degree of irregularity and the hollow ratio are not particularly limited.
  • a spinneret pack 3 in which the spinneret 1 is arranged in a case is arranged in a melt spinning device 4 as shown in FIG.
  • the melt spinning device 4 includes an extruder 5, a gear pump 6, a spinneret pack 3, an air blower 7, an oiling device 8, a Goddler 9, 10, a friction roller 11, and a winding roller 12.
  • the molten polymer is extruded by an extruder 5 and sent to a gear pump 6. Gi The pump 6 extrudes a predetermined flow rate of the molten polymer.
  • the molten polymer extruded from the gear pump 6 is sent to the spinneret pack 3.
  • the spinneret pack 4 distributes the molten polymer into a plurality of yarns by the spinneret 1 and spins out.
  • the plurality of spun yarns W are cooled by a blower 7, then oiled by an oiling device 8, and wound up by a winding roller 12 via Goded rollers 9, 10.
  • An evaluation test comparing the spinneret 1 according to the present invention with a conventional spinneret will be described below.
  • two spinning holes 11 are formed in one spinneret plate 10.
  • Yarn spot measurement evaluation Yarn spots were measured by Keisokki Evenness Tester Model KE 80C manufactured by Keisoku Kogyo Co., Ltd. in a state where the raw yarn was sent out at a positive unwinding (feeding speed ⁇ 7.85 ⁇ / ⁇ ) and stretched to 200%.
  • the measurement conditions are as follows: measurement mode: inert mode, sample speed: 8 m / min, electrode length of the measurement electrode: 18 mm, electrode width: 0.13 mm, sample measurement time: 5 min, twister rotation of the multifilament: lOOOr.pm Was measured.
  • R of breaking strength is 0.14 cN / dtex. Or more, or R of breaking elongation is 40% or more.
  • Knitted fabric evaluation Make a standard sample of bare knitted fabric grade and send the raw yarn MODEL TN-1 (3.5 inch hook diameter, 350 needles) made by Koike Seisakusho with active unwinding (feeding speed 84m / min) Set the rotation speed of the knitting pot to 168r.pm and knit for 2 minutes. The obtained bare bite knitted fabric is put into a standard knitted fabric determination blackboard and the knitted fabric is stretched to a predetermined position. Compare the bare knitted fabric standard sample prepared in advance with the knitted fabric sample and visually check the bare knitted fabric grade (1st grade is extremely good, 2nd grade is good, 3rd grade is normal, 4 is bad, 5th is dirty) (Grading).
  • ⁇ bare average knitted fabric grade 2.5 or more and less than 3.5 and no grade 5 judgment.
  • thermoplastic polyurethane resin was melt spun at a spinning temperature of 220 ° C, and the base material, SUS630 W360XT80XH20mm, was spun through a spinneret with a spinning hole diameter of ⁇ 1.0 and a linear array of 24 holes in a single row. After cooling the yarn by blowing a lway cooling air vertically to the row, an oil agent was applied by roller oiling to wind a molten spandex yarn (22 dtex, 1 filament). The swaying of the yarn at the cooling part during winding, the yarn physical properties of the obtained yarn, the measurement of yarn spots, and the evaluation of bare knitted fabric were performed.
  • thermoplastic resin is melt spun at a spinning temperature of 220.
  • the base material is SUS630 W360XT80XH20mm, and the spinning hole diameter is ⁇ 1.0.
  • the lway cooling air is blown vertically to the row to cool the yarn, and then the oil is applied by roller oiling to wind up the melted spandex yarn (44 dtex, 2 filaments). Carried out. (Example 3)
  • thermoplastic polyurethane resin was melted at a spinning temperature of 220 ° C, and the spinning hole diameter ⁇ 1.0 36 holes were linearly arranged in a single row on the base material SUS630 W360 X T80 X H20 mm, and discharged from the spinneret and straightened.
  • a m / min lway cooling air was blown vertically to the row to cool the yarn, and then oil was applied by roller oiling to wind up a molten spandex yarn (66 dtex, 3 filaments), and the same evaluation was performed. did.
  • thermoplastic resin Melt spinning of thermoplastic resin at a spinning temperature of 220 ° C, spinning hole diameter ⁇ 1.0, base hole of SUS630 W360 X T80 X H20mm, cooling hole blowing surface, first row of holes and second row
  • the spinneret is vertical and the distance between the first-row spinneret and the second-row spinneret becomes 10 mm.
  • the yarn is discharged from the linearly arranged spinneret in two rows and rectified by 0.3 m / min lway cooling wind. After cooling, an oil agent was applied by roller oiling, and a molten spandex yarn (22 dtex, 1 filament) was wound up, and the same evaluation was performed.
  • thermoplastic polyurethane resin at 220 ° C, base material SUS630 W360XT80XH20mm with a hole diameter d> 1.0, 24 holes straight line in two rows with the angle between the first and second row holes being 30 ° and the distance between the first and second row holes being 10mm
  • oil is applied by a single-layer oiling to wind up a molten spandex yarn (2 2 dtex, 1 filament), and similar evaluation was carried out.
  • Table 1 shows the evaluation results of Examples 1 to 3 and Comparative Examples 1 to 4.
  • thermoplastic polyurethane resin at a spinning temperature of 220 ° C, base material SUS630 W360XT80XH20mm, base diameter ⁇ 1.0, 24 holes, the angle between the first and second row holes is 60 °, the first line The distance between the spinning hole and the second-row spinning hole is 10 mm.
  • the yarn is discharged from the two-row linearly arranged spinneret, cooled by the rectified 0.3 m / min lway cooling air, and then melted by a roller oiling device. The same evaluation was performed by winding a spandex yarn (22 dtex, 1 filament).
  • thermoplastic polyurethane resin is melt spun at a spinning temperature of 220 ° C, and the base material SUS630 W360 X 80 X H20 mm has a spinning hole diameter of ⁇ 1.0 24 holes.
  • the cooling air blowing surface, the first row of holes and the second row of holes Roller oiling after cooling the yarn with 0.3m / min lway cooling air, which is discharged from the spinnerets arranged in two rows and arranged linearly in two rows, and the distance between the first and second rows of holes is 10mm
  • Table 2 shows the evaluation results of Comparative Examples 5 and 6.
  • Knitted fabric evaluation X Knitted fabric evaluation X
  • the spinneret of the first embodiment when the discharged polymer is subjected to fiber drawing, the spinneret temperature is made uniform and the influence of disturbance is reduced. Eliminates cooling differences between yarns in the easy-to-receive cooling process, stabilizes the supply of yarn with little yarn spots, reduces losses due to yarn spots in the intermediate processing step, and improves the quality of final products Thus, it is possible to provide a yarn capable of improving the yield.
  • the spinneret 20 is housed in a case 21 as shown in FIG. On the spinneret 20, a filter medium 22 is placed.
  • the spinneret 20 has a single spinning hole 23 at the center of the spinneret 20.
  • the spinneret 20 has a plurality of guide grooves 24 for guiding the molten polymer that has passed through the filter medium 22 to the spinning holes 23.
  • the plurality of guide grooves 24 are formed radially around the spinning hole 23.
  • a tapered hole portion 25 is formed on the inflow side of the spinning hole 23.
  • a polybutylene adsorbate-based polyol diphenyldiene succinate / 14 A polyurethane polymer having a Shore A hardness of 90 consisting of butanediol is supplied to a spinning device equipped with a single-screw extruder to obtain a spinning temperature of 2. The mixture was extruded from a spinneret having the following structure through a filter medium at 20 ° C., and a continuous operation was performed under a winding speed of 500 m / min to obtain a 20-denier monofilament.
  • Diameter of spinning hole upper part 2. ⁇ Replacement paper (Rule 26) Spinning hole diameter: 0.28 ⁇
  • Example 4 A spinneret similar to that in Example 4 was used, except that there was no groove for guiding the polymer after passing through the filter medium to the spinning hole.
  • the spinning conditions were the same as in Example 4.
  • a spinneret similar to that of Example 4 was used except that there was no groove for guiding the polymer after passing through the filter medium to the spinning hole, and the distance between the filter medium and the spinneret was O nmi with the filter medium in contact with the spinneret.
  • the spinning was performed under the same conditions as in Example 4.
  • 31 is an oiling device
  • 32 is a spinneret pack
  • 3 3, 3 3 ′ are Goded rollers
  • F is a friction roller
  • P is a paper tube
  • 34 is a gear pump
  • 35 is an extruder
  • 36 is a blower.
  • the elastic fiber W spun from the melter pack 32 passes through the oiling device 31, passes through the Goded rollers 33, 33 ′, and is wound up on the paper tube P through the friction opening roller F.
  • the oiling device 31 includes an oiling member 38 for applying oil to the elastic fiber W, and a guide member 39 for guiding the elastic fiber W to the oiling member 38.
  • the oiling member 38 and the guide member 39 constitute a guide for the elastic fiber W.
  • the oiling member 38 has a groove 40 for guiding the elastic fiber W, and an opening formed in the groove 40 for applying oil to the elastic fiber W passing through the groove 40. It has an oil supply hole 42 communicating with the hole 41, and the groove 40 has a vertex 43 that is in contact with a vertical line H virtually provided in FIG. 7, and a vertical line H from the vertex 43.
  • An upper slope 44 and an upper slope 45 having an angle of receding with respect to each other, and a narrowest portion 46 near the apex 43.
  • the vertex 43 is preferably rounded with a small radius (for example, 0.1 to 20 mm), but is not particularly limited. It is important that the elastic fiber W comes into contact only at the apex 43, and therefore the angles ⁇ , ⁇ at which the upper slope 44 and the lower slope 45 recede from the apex 43 to the vertical line H (See FIG. 3) is not limited, but each has an angle of preferably 15 ° to 70 ° as a preferable range. As shown in Fig. 7, the position of the opening 41 in the groove 40 must be such that the shortest distance d ⁇ from the apex 43 to the opening 41 is 3 mm or more and above the elastic fiber running direction.
  • the shortest distance L at which the opening position is separated from the virtual vertical line H is 2 mm or more.
  • the term "vertical line" of the present invention is used to define the oiling device of the present invention, and in actual spinning, the elastic fiber is formed by the upper slope 44 (lower slope 45) and the vertical line. You may enter between ( ⁇ , / 3).
  • the maximum diameter of the opening 41 is larger than the value ( ⁇ in FIG. 8) where the width of the groove 40 is minimum.
  • the groove 40 has a trapezoidal side cross section as shown in FIG. 7.
  • the groove 40 extends upward toward the narrowest portion 46 near the apex 43 in a front view. At a certain angle from the V-shape, It can be shaped to spread in an inverted V-shape at an angle toward it.
  • the side wall of the groove 40 forms a groove with the upper slope and the lower slope facing each other, but may have a curved shape in which the side wall is not clearly present.
  • the width N of the narrowest part 46 of the groove part 40 is preferably 0.1 to 1.5 mm. This is because if the width N of the narrowest part 46 of the groove part 40 exceeds 1.5 mm, it becomes difficult to effectively prevent the yarn from swaying in the groove part 40, and oil adhesion spots easily occur. Because. Further, it is preferable that the depth D of the groove 40 up to the apex 43 is 3 to 10 mm. Preferably, the maximum diameter of the opening 41 is 0.2 to 0.4 mm larger than the minimum width N of the narrowest portion 46 of the groove 40.
  • the oiling member 38 having the above structure fixes the spun fusible fiber by the groove against the change in position until it is wound up, and fixes it in the running direction (vertical direction of the ⁇ fiber).
  • the effect on the unstable region due to frictional fluctuation at the point is significantly reduced, and it has the function of making the yarn quality uniform.
  • two comb-shaped plates 39 'and 39' are arranged along the direction in which the elastic fibers are arranged, and elastic members are provided in the gaps between the teeth of the comb teeth. It can be configured to pass fibers.
  • the guide member 39 has a receding angle ⁇ of more than 0 ° and not more than 3 ° with respect to the virtually hung vertical line H from the vertex 43, where the elastic fiber downstream from the vertex 43 of the oiling member 38 is formed. (See FIG. 7), more preferably, it is necessary to arrange so as to have a receding angle ⁇ of 2 ° or less, and the shape and the like are not limited as long as this requirement is satisfied.
  • the surface roughness of the vicinity of the apex of the oiling member 38 and the surface roughness of the guide member 39 be 2 to 1 OS. This is because if the surface roughness is smaller than 2 S, the actual contact area increases and the friction increases.On the other hand, if the surface roughness is too large, the surface tension fluctuates and the difference in the oil retention force increases. This is because when the surface roughness exceeds 10 S, the oil adhesion amount tends to be uneven.
  • the elastic fiber W having a filament number of 2 or less and a total fineness of 88 or less is suitable for the oiling apparatus according to the present invention. Because, when the number of filaments exceeds 2, the convergence state between filaments varies, and the present invention If the total fineness exceeds 88, a portion where no oil agent is attached is likely to occur in the circumferential direction.When such a portion comes into contact with the guide portion, excessive frictional resistance is locally generated. Because we receive.
  • Tables 3 and 4 show the results of evaluation tests using a melt spinning device equipped with an oiling device as described above.
  • Table 3 shows the results of measuring the running tension of the yarn wound at a different receding angle ⁇ when stretching 200%.
  • Table 4 shows the results of measuring the occurrence rate of defective winding shape of cheese and the occurrence rate of any step with changing the receding angle ⁇ .
  • the elastic fiber supply speed was 15.7 m / min
  • the measurement time was 1 minute
  • the data acquisition interval was 0.2 seconds / time.
  • a to L correspond to 12 cheeses (elastic fibers wound on a winding roller in a cheese shape).
  • the receding angle ⁇ exceeds 2 °, a step (cheese winding shape defect) occurs, and the stepping rate increases as the receding angle ⁇ increases.
  • the receding angle ⁇ is preferably 2 ° or less, but as a practical yield, if the receding angle is 3 ° or less, it is within the allowable range for operation.
  • the receding angle ⁇ is set to be greater than 0 ° and 3 ° or less by the guide member. As a result, it was possible to reduce the variation in running tension and the occurrence rate of stepped defects. As a result, the oiling device according to the present invention ensures the supply of oil by ensuring the contact between the elastic fiber to be spun and the guide for applying oil, and prevents the frictional force due to the contact from becoming excessive. Thus, the quality of the elastic fiber can be maintained.
  • melt spinning apparatus for producing a polyurethane elastic fiber
  • the melt spinning device 4 is arranged so that the spinneret 3 from which the elastic fiber W is spun extends in a direction substantially parallel to the axial direction of the winding port 1 1 2. It is significant that the spinning holes 2 for discharging the elastic fibers W are arranged in a line at equal intervals along the longitudinal direction of the base 3.
  • An extruder 5 that melts and extrudes the polymer to the spinneret 3 is connected to the spinneret 3 via a gear pump 6.
  • a plurality of guide members 59 for arranging the elastic fibers W in parallel with the direction in which the spinning holes 2 are arranged and for regulating the deviation of the yarn path are provided.
  • each guide member 59 is arranged on the support member 51 at a wider interval than the spinning hole 2 and in parallel with the longitudinal direction of the spinneret 3. W is wound up while spreading in the longitudinal direction of the spinneret 3.
  • each guide member 59 has a groove 53 for engaging with the elastic fiber W, and a nozzle 55 for discharging oil is formed in a portion of the groove 53 where the elastic fiber W contacts. I have. As shown in FIG. 2, oil is supplied to each nozzle 55 from an oil tank 59 via a gear pump 57. Further, each nozzle 55 supplies oil to the elastic fiber W from the pressing direction of the guide member 59 for inclining the elastic fiber W, for the following reason. is there.
  • each elastic fiber W is inclined so as to spread downward by the guide member 59, a tension acts in a direction to return to the center side of the support member 51, and the guide member 59 in this direction is acted on. Frictional force increases. Therefore, as described above, by discharging oil from the pressing direction of the guide member 59 against the elastic fiber W, the effect of reducing friction with the guide member 59 can be increased.
  • the nozzle 55, the gear pump 57, and the oil tank 59 constitute the oiling device of the present invention.
  • a blower 7 is provided between the spinneret 3 and the guide member 59, and a cool air is applied to the elastic fiber W from a direction orthogonal to the arrangement direction of the elastic fibers W. Spray.
  • two godet rollers 9, 10 and a winding roller 12 are provided below the guide member 59. These are arranged so as to extend in parallel with the longitudinal direction of the spinneret 3. The winding of the fiber onto the roll 60 is performed by a traverse guide (not shown) reciprocatingly moving in the axial direction of the roll 60 while guiding the fiber.
  • the polymer melted by the extruder 5 is extruded to the spinneret 3 while adjusting the supply amount by the gear pump 6, and the elastic fiber W is spun downward from each spinning hole 2.
  • Each elastic fiber W extends downward while slightly widening the interval, and after the oil is applied by the guide member 59, the two godet rollers 9,, are arranged in the same direction as the arrangement direction of the spinning holes 2. Wound to 10 Then, after the tension is adjusted by the godet rollers 9 and 10, it is sent out to the take-up roller 12 and wound up by each roll 60.
  • the arrangement direction of the spinning holes 2 of the spinneret 3 is Since they are substantially parallel to the axial directions of the dead rollers 9, 10 and the take-up roller 12, the elastic fiber W is not twisted greatly and the take-up roller 12 remains in the same arrangement as the spinning hole 2. It is wound up. Therefore, it is possible to reduce the variation in the tension between the elastic fibers due to the difference in the frictional force acting on the elastic fibers and the yarn path length as in the past, and the physical properties between the elastic fibers. Can be reduced. As a result, it is possible to provide high-quality products, for example, by preventing the occurrence of stripes and the like in the fabric even when using different positions of the mouth in the same device.
  • the difference between the maximum value and the minimum value of the inclination angle ⁇ between the elastic fibers by the guide member 59 is set to 1.5 ° or less, so that the elastic fibers
  • the difference in frictional force generated between W and the guide member 59 can be reduced.
  • the difference in tension between the elastic fibers can be further reduced, and the physical properties of the roll can be made uniform.
  • the oiling is performed at the guide member 59, but the oiling device can be separated from the guide member 59.
  • the oiling device for example, a device in which an elastic fiber is brought into contact with a roll having a surface coated with oil can be used.
  • the oil it is necessary that the oil be oiled before coming into contact with the guide member 59, that is, at a position from the spinning hole 2 to the guide member 59.
  • a thread may be formed by forming a plurality of grooves in the support member and guiding the elastic fibers in each groove. What is necessary is just to be comprised so that road deviation can be regulated.
  • the present invention is applied to the case where the polyurethane elastic fiber is produced by melt spinning, but can also be applied to other methods, that is, the case of producing by a dry spinning method or a wet spinning method. It is.
  • the present invention can be applied to other elastic fibers other than the above-mentioned polyurethane elastic fibers.
  • examples of the present invention and comparative examples related to the above-mentioned elastic fiber manufacturing apparatus will be described.
  • Example 5 the device shown in FIGS. 2 and 10 is used, and in Comparative Example 9, the device shown in FIGS. 11 and 12 is used.
  • the spinning device 81 shown in FIGS. 11 and 12 includes a spinneret 3 formed in a row in a plurality of spinning holes 2 in a longitudinal direction, and an oiling device that guides the elastic fiber W and performs a rolling operation below the spinneret 3. 8, a blower 7 disposed between the spinneret 3 and the oiling device 8, godet rollers 63, 65, and a winding roller 69 for winding the elastic fiber W around the roll 67.
  • a guide ring 82 for guiding the elastic fiber W, godet rollers 9, 10 and a take-up roller 12 are provided, but these are used effectively for space.
  • the device shown in FIG. 2 differs from the device shown in FIG. 2 in that the axial direction is set at 90 ° with the longitudinal direction of the spinneret 3.
  • the manufacturing apparatus 81 configured as described above manufactures polyurethane elastic fibers as follows. That is, the melted polymer is extruded from an extruder (not shown) to the spinneret 3, and the elastic fibers W are spun substantially vertically downward from the spinning holes 2. Each elastic fiber W is cooled and solidified by blowing a cool air by a blower 7, oil is applied by an oiling device 8, and then the arrangement direction of the elastic fiber W is twisted 90 ° by a guide ring 82. It is said. In this way, the tensile strength of the conductive fiber W whose orientation has been changed is adjusted via the two godet rollers 9 and 10, then sent out to the take-up roller 12, and taken up by each roll 60.
  • Example 5 In Example 5 and Comparative Example 9 described above, the spinning hole diameter was 0.28 mm, the spinning speed was 55 Om / min, the resin melting temperature was 200 ° C, and the elastic fiber was wound around 12 rolls. I'm wearing
  • Table 5 shows the stress ST values of the polyurethane elastic fibers in Example 5 and Comparative Example 9.
  • the stress ST value is a running tension at the time of stretching of 200% when the elastic fiber wound as described above is supplied at 15.7 m / min.
  • the arrangement direction of the spinning holes from which the elastic fibers are spun is substantially parallel to the axial direction of the winding roller.
  • the elastic fiber can be wound around the winding roller without being twisted greatly, with the same arrangement as the spinning hole. Therefore, it is possible to reduce the variation in the tension between the elastic fibers due to the difference in the frictional force acting on the elastic fibers and the yarn path length as in the related art, and to reduce the difference in the physical properties between the elastic fibers. .
  • a roll wound by the same manufacturing apparatus it is possible to provide a high-quality product, for example, it is possible to prevent a stripe pattern or the like from being generated on the fabric.
  • the difference between the maximum value and the minimum value of the inclination angle of the elastic fiber with respect to the vertical line is set to 1.5 ° or less by the guide member, the difference between the elastic fiber and the guide member is generated between the elastic fibers.
  • the difference in frictional force can be reduced.
  • the difference in tension between the elastic fibers can be further reduced, and the physical properties of the roll can be made uniform.
  • the oil agent is supplied to the elastic fibers from the pressing direction of the guide member for inclining the elastic fibers, the following effects can be obtained. That is, since the yarn path of each elastic fiber is inclined by the guide member, a tension acts in a direction to return to the original yarn path, and the frictional force with the guide member in this direction increases. Therefore, by supplying the oil agent to the elastic fiber from the pressing direction of the guide member as described above, the effect of reducing friction with the guide member can be increased.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

L'invention concerne une filière, un dispositif d'ensimage, un dispositif de filature et un procédé de filature respectivement utilisé et mis en oeuvre pour la production de fibres synthétiques. La filière comporte une seule rangée d'ajutage (2). Les fils éjectés par les ajutages (2) de la filière (1) sont reçus par un rouleau récepteur (12) après être passés par un dispositif d'ensimage (8) et des rouleaux à godet (9, 10) sans avoir été vrillés. La filière (20) est pourvue de rainures (24) qui s'étendent radialement depuis un ajutage (23). Du polymère fondu filtré par un matériau filtrant (22) entre dans l'ajutage (23) en passant par les rainures (24). Le dispositif d'ensimage (31) peut être pourvu d'un élément d'ensimage (8) et d'un guide (9) qui coopèrent de façon à empêcher un mauvais ensimage imparfait.
PCT/JP2002/012475 2001-12-27 2002-11-29 Filiere, dispositif d'ensimage, dispositif de production et procede de production pour fibres synthetiques WO2003060204A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002349612A AU2002349612A1 (en) 2001-12-27 2002-11-29 Spinneret, oiling device, production device and production method for synthetic fibers

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP2001-397133 2001-12-27
JP2001397133A JP3888436B2 (ja) 2001-12-27 2001-12-27 弾性繊維の製造装置及び製造方法
JP2001-399245 2001-12-28
JP2001399245A JP2003201619A (ja) 2001-12-28 2001-12-28 弾性繊維用仕上剤付与装置
JP2002-57713 2002-03-04
JP2002057713A JP2003253521A (ja) 2002-03-04 2002-03-04 紡糸口金及びこれを用いた合成繊維の製造方法
JP2002057712A JP2003253520A (ja) 2002-03-04 2002-03-04 紡糸口金
JP2002-57712 2002-03-04

Publications (1)

Publication Number Publication Date
WO2003060204A1 true WO2003060204A1 (fr) 2003-07-24

Family

ID=27482752

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2002/012475 WO2003060204A1 (fr) 2001-12-27 2002-11-29 Filiere, dispositif d'ensimage, dispositif de production et procede de production pour fibres synthetiques

Country Status (5)

Country Link
CN (1) CN1324172C (fr)
AU (1) AU2002349612A1 (fr)
ES (1) ES2267369B2 (fr)
TW (1) TW200301324A (fr)
WO (1) WO2003060204A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013110633A1 (fr) * 2012-01-24 2013-08-01 Oerlikon Textile Gmbh & Co. Kg Dispositif permettant d'humidifier plusieurs fils
EP3865444A1 (fr) * 2020-02-12 2021-08-18 TMT Machinery, Inc. Guide d'alimentation en huile et machine de bobinage de fil

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5448901B2 (ja) * 2010-02-15 2014-03-19 Ｔｍｔマシナリー株式会社 油剤拡散装置及び紡糸巻取機
CN102926002A (zh) * 2011-08-11 2013-02-13 苏州一丞咨询服务有限公司 一种用于细旦纺丝的上油装置
CN103305938A (zh) * 2013-06-25 2013-09-18 苏州锦凯纺织有限公司 新型预取向丝的上油设备
CN104313815B (zh) * 2014-11-07 2016-07-27 浙江尤夫高新纤维股份有限公司 涤纶工业丝功能性助剂多道油嘴上油装置
CN104976877B (zh) * 2015-07-10 2017-03-08 广东溢达纺织有限公司 染带烘干架
JP7186006B2 (ja) * 2018-02-05 2022-12-08 Ｔｍｔマシナリー株式会社 給油ガイド及び紡糸引取装置
CN108265340A (zh) * 2018-03-06 2018-07-10 杨晓波 纳米纤维制造装置
CN108823664A (zh) * 2018-09-29 2018-11-16 安徽和邦纺织科技有限公司 一种实验室用纺丝设备
CN109097845A (zh) * 2018-11-12 2018-12-28 长兴盛纺织有限公司 一种化纤丝的传送牵引装置
DE102019001484A1 (de) * 2019-03-02 2020-09-03 Oerlikon Textile Gmbh & Co. Kg Präparationsfadenführer
CN113252225A (zh) * 2021-04-13 2021-08-13 武汉纺织大学 一种集束张力检测系统

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS3610507B1 (fr) * 1959-04-03 1961-07-14
US3001230A (en) * 1959-01-29 1961-09-26 Eltherma A G Spinnerette nozzles
US3059991A (en) * 1959-03-20 1962-10-23 E B & A C Whiting Company Method of making oriented filamentary article of isotactic polypropylene
JPS4416325Y1 (fr) * 1966-09-28 1969-07-15
JPS61245307A (ja) * 1985-04-23 1986-10-31 Toray Ind Inc ポリエステル特殊フイラメントの製造法
JPH05230706A (ja) * 1992-02-17 1993-09-07 Toyobo Co Ltd 仕上剤付与装置
US5362433A (en) * 1986-12-17 1994-11-08 Viscosuisse S.A. Process of making polyurethane elastomer thread
US5387387A (en) * 1993-09-30 1995-02-07 Alex James & Associates, Inc. Method and apparatus for dry spinning spandex

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1415947A (en) * 1972-09-11 1975-12-03 Autlmatik Apparate Maschinenba Spinning machines for producing and reeling synthetic fibres
US5330338A (en) * 1992-02-17 1994-07-19 Toyo Boseki Kabushiki Kaisha Apparatus for spinning of polyurethane elastic filaments
DE4336097A1 (de) * 1993-10-22 1995-04-27 Bayer Ag Kontinuierliches Verfahren zum Schmelzspinnen von monofilen Fäden
JP3893437B2 (ja) * 1997-04-10 2007-03-14 帝人テクノプロダクツ株式会社 油剤付与ノズル
DE10046220A1 (de) * 1999-11-18 2001-05-23 Barmag Barmer Maschf Verfahren und Vorrichtung zum Schmelzspinnen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3001230A (en) * 1959-01-29 1961-09-26 Eltherma A G Spinnerette nozzles
US3059991A (en) * 1959-03-20 1962-10-23 E B & A C Whiting Company Method of making oriented filamentary article of isotactic polypropylene
JPS3610507B1 (fr) * 1959-04-03 1961-07-14
JPS4416325Y1 (fr) * 1966-09-28 1969-07-15
JPS61245307A (ja) * 1985-04-23 1986-10-31 Toray Ind Inc ポリエステル特殊フイラメントの製造法
US5362433A (en) * 1986-12-17 1994-11-08 Viscosuisse S.A. Process of making polyurethane elastomer thread
JPH05230706A (ja) * 1992-02-17 1993-09-07 Toyobo Co Ltd 仕上剤付与装置
US5387387A (en) * 1993-09-30 1995-02-07 Alex James & Associates, Inc. Method and apparatus for dry spinning spandex

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013110633A1 (fr) * 2012-01-24 2013-08-01 Oerlikon Textile Gmbh & Co. Kg Dispositif permettant d'humidifier plusieurs fils
EP3865444A1 (fr) * 2020-02-12 2021-08-18 TMT Machinery, Inc. Guide d'alimentation en huile et machine de bobinage de fil
TWI815079B (zh) * 2020-02-12 2023-09-11 日商Ｔｍｔ機械股份有限公司 油劑賦予導件以及紡絲牽引機
JP7475004B2 (ja) 2020-02-12 2024-04-26 Ｔｍｔマシナリー株式会社 油剤付与ガイド、及び紡糸引取機

Also Published As

Publication number Publication date
ES2267369B2 (es) 2007-11-16
AU2002349612A1 (en) 2003-07-30
TW200301324A (en) 2003-07-01
ES2267369A1 (es) 2007-03-01
CN1608149A (zh) 2005-04-20
CN1324172C (zh) 2007-07-04

Similar Documents

Publication Publication Date Title
WO2003060204A1 (fr) Filiere, dispositif d'ensimage, dispositif de production et procede de production pour fibres synthetiques
US10619272B2 (en) High load bearing capacity nylon staple fiber and nylon blended yarns and fabrics made therefrom
TWI496966B (zh) 聚酯單絲、及其製造方法、及使用其之網版用紗之製造方法
CA1109243A (fr) Fil fascie et methode de fabrication connexe
JP2005527714A (ja) 高速紡糸による高い引張強度のポリアミド・フィラメントの製造方法および装置
JP5386951B2 (ja) 油剤塗布装置
MX2011006418A (es) Filamento resistente a la fibrilacion de nucleo solido de tereftalato de politrimetileno con seccion transversal practicamente triangular, tobera de hilatura para producir el filamento y alfombra fabricada a partir del mismo.
US20080003428A1 (en) High-Strength Spanized Yarn and Method for Producing the Same
JP2007077547A (ja) 極細ポリアミドマルチフィラメントの製造方法およびポリアミドマルチフィラメント糸の溶融紡糸装置
US20180155151A1 (en) Drum-shaped package formed of poly(lactic acid)-based monofilament
JP5906808B2 (ja) 合成繊維の製造方法
KR100845096B1 (ko) 폴리에스터 중공 분섬사의 제조방법 및 이 방법에 의해생산된 연신사
JP4677870B2 (ja) ポリアミドフィラメント
JP3888436B2 (ja) 弾性繊維の製造装置及び製造方法
JP3774810B2 (ja) 紡糸口金パックの製造方法
CN115427617B (zh) 聚酰胺单丝
JP2007009342A (ja) 合成マルチフィラメント糸の製造方法
US6221491B1 (en) Hexagonal filament articles and methods for making the same
JP2010196219A (ja) 多糸条からなる極細合成繊維の製造方法およびその製造装置
EP3778997B1 (fr) Filière et procédé de fabrication de bande fibreuse
JP2006265758A (ja) ポリアミドモノフィラメントおよびその製造方法
US7165963B2 (en) Spinneret for producing circular cross section yarn and process for making the same
JP2010084265A (ja) 熱可塑性繊維の製造装置及び製造方法
CN116964259A (zh) 聚酰胺复丝
JP3954911B2 (ja) 溶融紡糸口金装置

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SC SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LU MC NL PT SE SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
ENP Entry into the national phase

Ref document number: 200450038

Country of ref document: ES

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: P200450038

Country of ref document: ES

WWE Wipo information: entry into national phase

Ref document number: 20028260287

Country of ref document: CN

122 Ep: pct application non-entry in european phase
WWP Wipo information: published in national office

Ref document number: 200450038

Country of ref document: ES

Kind code of ref document: A

WWG Wipo information: grant in national office

Ref document number: 200450038

Country of ref document: ES

Kind code of ref document: A