EP3690086B1 - Melt spinning apparatus and non-woven fabric production method - Google Patents

Melt spinning apparatus and non-woven fabric production method Download PDF

Info

Publication number
EP3690086B1
EP3690086B1 EP18900577.0A EP18900577A EP3690086B1 EP 3690086 B1 EP3690086 B1 EP 3690086B1 EP 18900577 A EP18900577 A EP 18900577A EP 3690086 B1 EP3690086 B1 EP 3690086B1
Authority
EP
European Patent Office
Prior art keywords
cooling air
supply unit
air supply
cooling
unit
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP18900577.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3690086A1 (en
EP3690086A4 (en
Inventor
Masaaki ODOI
Atsushi Kawada
Tetsuya Yokoyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Chemicals Inc
Original Assignee
Mitsui Chemicals Inc
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=66429866&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP3690086(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mitsui Chemicals Inc filed Critical Mitsui Chemicals Inc
Publication of EP3690086A1 publication Critical patent/EP3690086A1/en
Publication of EP3690086A4 publication Critical patent/EP3690086A4/en
Application granted granted Critical
Publication of EP3690086B1 publication Critical patent/EP3690086B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • 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
    • D01D5/098—Melt spinning methods with simultaneous stretching
    • D01D5/0985—Melt spinning methods with simultaneous stretching by means of a flowing gas (e.g. melt-blowing)
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin series

Definitions

  • the present disclosure relates to a melt spinning apparatus and to a method of manufacturing a non-woven fabric.
  • Examples of methods of manufacturing spunbonded non-woven fabrics include a method in which spun filaments are cooled by cooling air introduced into a cooling chamber, drawn through nozzles using cooling air as drawing air on an as-is basis, and scattered on a mesh belt.
  • cooling air is sprayed on a large number of continuous filaments melt-spun from spinning nozzles, thereby cooling the filaments.
  • a sufficient volume of cooling air is needed in the case of increasing the amount of discharged filaments in order to enhance productivity in such a case.
  • a small volume of cooling air results in insufficient cooling of the filaments, thereby causing a resin block (shot) to be prone to be generated on a web.
  • a large volume of cooling air causes yarn breakage to be prone to occur due to supercooling.
  • Patent Document 1 proposes the method of manufacturing a non-woven fabric, in which cooling air introduced into a cooling chamber is divided into at least two stages in a vertical direction, and the air velocity of cooling air in a bottom stage is allowed to be higher than the air velocity of cooling air in a top stage.
  • Patent Document 1 Japanese Patent Application Laid-Open ( JP-A) No. 2002-317372
  • Patent Document 1 the method and apparatus of manufacturing a non-woven fabric, proposed in Patent Document 1, have a problem that the uniformity (texture) of the mass distribution of an overall non-woven fabric is prone to be deteriorated, whereby so-called yarn fluctuation is prone to occur.
  • the present invention was made under such circumstances with an object of providing a melt spinning apparatus in which yarn breakage and yarn fluctuation can be suppressed, and a method of manufacturing a non-woven fabric using the apparatus.
  • the present disclosure can provide a melt spinning apparatus in which yarn breakage and yarn fluctuation can be suppressed, and a method of manufacturing a non-woven fabric using the apparatus.
  • any numerical value range indicated by the term “to” represents any range including the numerical values described before and after the term “to” as the lower limit value and the upper limit value, respectively.
  • the upper or lower limit value expressed in one numerical range may be replaced by the upper or lower limit value in another numerical range expressed in a stepwise manner.
  • the upper or lower limit value of the numerical range may be replaced by values described in Examples.
  • the configuration of the embodiment is not limited to a configuration illustrated in the drawing.
  • the sizes of members in each drawing are conceptual, and the relative relationships between the sizes of the members are not limited thereto.
  • a melt spinning apparatus of the present disclosure includes a spinning unit including plural spinning nozzles that spin filaments, a cooling unit that cools the filaments spun from the spinning nozzles, and a cooling air supply unit that faces the cooling unit and supplies cooling air to the cooling unit through an air-permeable partition, wherein the cooling air supply unit includes a first cooling air supply unit at a vertically upper side and a second cooling air supply unit at a vertically lower side, divided into two stages in a vertical direction through a partition, there is a gap between an end, facing the air-permeable partition, of the partition and a face of a side, facing the partition, in the air-permeable partition, and the distance of the gap d is 55 mm or less and 5 mm or more.
  • the melt spinning apparatus of the present disclosure includes the cooling air supply unit including the first cooling air supply unit at the vertically upper side and the second cooling air supply unit at the vertically lower side, divided into the two stages in the vertical direction through the partition, and includes the gap between the end, facing the air-permeable partition, of the partition and the face of the side, facing the partition, in the air-permeable partition, wherein the distance of the gap d is 55 mm or less and 5 mm or more.
  • the melt spinning apparatus 100 includes a spinning unit 1, a cooling chamber (cooling unit) 3, a cooling air supply unit 4, an air-permeable partition 8, and a drawing unit 9.
  • the cooling air supply unit 4 is divided into two stages through a partition 7, and includes a first cooling air supply unit 5 at a vertically upper side and a second cooling air supply unit 6 at a vertically lower side. There is a gap between an end, facing the air-permeable partition 8, of the partition 7 and a face of a side, facing the partition 7, in the air-permeable partition 8.
  • the melt spinning apparatus 100 is an apparatus that discharges a resin composition supplied to the spinning unit 1, from plural spinning nozzles into the cooling chamber 3, and cools and draws the discharged filaments.
  • the melt spinning apparatus 100 may be an apparatus used for manufacturing a spunbonded non-woven fabric, and may include, for example, a collecting unit that forms a non-woven web on which the cooled and drawn filaments are deposited, and an entanglement unit that subjects the non-woven web to heating and pressurization treatment.
  • the melt spinning apparatus 100 includes the spinning unit 1 including the plural spinning nozzles through which filaments are spun. For example, a resin composition melt-kneaded with an extruder is supplied to the spinning unit 1, and the resin composition supplied to the spinning unit 1 is discharged as filaments from the plural spinning nozzles disposed on a nozzle face 2 into the cooling chamber 3.
  • the resin composition may include a resin used for manufacturing a non-woven fabric.
  • the resin used for manufacturing a non-woven fabric include a polyester resin, a polyurethane resin, a polyamide resin, and a polyolefin resin.
  • a polyolefin resin is preferred, and a propylene-based polymer is more preferred, in view of excellent productivity.
  • the propylene-based polymer may be a polymer including propylene as a constitutional unit, may be a propylene homopolymer, may be a propylene random copolymer, or may be a mixture thereof.
  • the propylene random copolymer is preferably a random copolymer in which the content of propylene with respect to all constitutional units is 50% by mol or more.
  • the propylene random copolymer is preferably a propylene ⁇ -olefin random copolymer.
  • the content of propylene with respect to all the constitutional units is preferably from 70% by mol to 99.5% by mol, more preferably from 80% by mol to 98% by mol, and still more preferably from 90% by mol to 96% by mol.
  • the ⁇ -olefin is preferably an ⁇ -olefin having two or more carbon atoms, excluding propylene, more preferably an ⁇ -olefin having 2 or from 4 to 8 carbon atoms, and still more preferably ethylene which is an ⁇ -olefin having 2 carbon atoms.
  • ⁇ -olefin examples include ethylene, 1-butene, 1-pentene, 1-hexene, 1-octene, and 4-methyl-1-pentene.
  • Such ⁇ -olefins may be used singly, or in combination two or more kinds thereof.
  • the resin composition may include another component as well as the resin used for manufacturing a non-woven fabric.
  • the other component include another polymer, an organic peroxide, a surfactant, a coloring agent, an antioxidant based on phosphorus, phenol, or the like, a weathering stabilizer based on benzotriazole or the like, a light stabilizer based on a hindered amine or the like, an anti-blocking agent, a dispersant such as calcium stearate, a lubricant, a nucleating agent, a pigment, a softening agent, a hydrophilization agent, a water repellent, an aid, a water repellent, a filler, an antibacterial agent, a pesticide, an insect repellent, an agent, a natural oil, and a synthetic oil.
  • the melt spinning apparatus 100 includes the cooling chamber 3 in which filaments spun from the spinning nozzles are cooled. Cooling air is supplied from the cooling air supply unit 4 into the cooling chamber 3 through the air-permeable partition 8, and the filaments are cooled by the supplied cooling air.
  • An exhaust-nozzle for exhausting a vapor of low-molecular-weight polymer may be mounted between the nozzle face 2, which is an upper portion of the cooling chamber 3, and the cooling air supply unit 4.
  • the melt spinning apparatus 100 includes the cooling air supply unit 4 that faces the cooling chamber 3 and supplies cooling air to the cooling chamber 3 through the air-permeable partition 8.
  • the cooling air supply unit 4 includes the first cooling air supply unit 5 at the vertically upper side and the second cooling air supply unit 6 at the vertically lower side, divided into two stages in a vertical direction. As illustrated in Fig. 1 , the first cooling air supply unit 5 and the second cooling air supply unit 6 supply cooling airs in the directions of arrows in Fig. 1 .
  • cooling air supply units 4 supply cooling airs from two directions, facing each other, to the cooling chamber 3 through such air-permeable partitions 8, respectively.
  • the cooling air supply unit 4 may include a flow regulating plate that regulates cooling air supplied to the cooling chamber 3, upstream of the air-permeable partition 8 in the direction of cooling air supply. As a result, the direction of cooling air supplied to the cooling chamber 3 is regulated, and yarn breakage and yarn fluctuation can be more preferably suppressed.
  • (L ⁇ h)/d satisfies 0.056 or more assuming that the width of the cooling air supply unit 4 is L (m), the height of the cooling air supply unit 4 is h (m), and the distance of the gap is d (mm).
  • the height h of the cooling air supply unit 4 corresponds to h 1 + h 2 + the thickness of the partition 7 in Fig. 1
  • the width of the cooling air supply unit 4 is the length of the inner side of the cooling air supply unit 4, excluding an outer wall, in the direction orthogonal to the direction of cooling air supply and the height of the cooling air supply unit 4 in Fig. 1 .
  • the width L of the cooling air supply unit 4 and the height h of the cooling air supply unit 4 means the width and height of the cooling air outlet of the cooling air supply unit 4. Accordingly, (L ⁇ h) means the area of a face, through which cooling air passes, of the cooling air outlet of the cooling air supply unit 4, and (L ⁇ h)/d means the ratio of the area to the distance d of the gap.
  • (L ⁇ h)/d may be from 0.056 to 0.614, or may be from 0.112 to 0.448. Yarn breakage can be more preferably suppressed in a case in which (L ⁇ h)/d is 0.056 or more, and yarn fluctuation can be more preferably suppressed in a case in which (L ⁇ h)/d is 0.614 or less.
  • the distance d of the gap may be 50 mm or less, may be 45 mm or less, and may be 40 mm or less, in view of more preferably suppressing yarn breakage.
  • the numerical value of the distance d of the gap is not particularly limited as long as the gap is present.
  • the distance d may be 5 mm or more, and may be 10 mm or more, in view of more preferably suppressing yarn fluctuation.
  • the width L of the cooling air supply unit 4 is not particularly limited.
  • the width L may be from 3 m to 7 m, and may be from 4 m to 6 m.
  • the height of the cooling air supply unit 4 is not particularly limited. The height may be from 0.4 m to 1.0 m, and may be from 0.6 m to 0.8 m.
  • the ratio of a distance from the nozzle face 2 to the partition 7 with respect to the the distance d of the gap may be from 5 to 50.
  • the ratio of the height (h 2 ) of the second cooling air supply unit 6 to the height (h 1 ) of the first cooling air supply unit 5 may be from 0.5 to 1.5, and may be from 0.8 to 1.2.
  • the melt spinning apparatus 100 may further include a first controller that controls the temperature (first temperature) of cooling air supplied to the first cooling air supply unit 5 and the temperature (second temperature) of cooling air supplied to the second cooling air supply unit 6.
  • the first temperature refers to the temperature of cooling air in the inlet of the first cooling air supply unit 5
  • the second temperature refers to the temperature of cooling air in the inlet of the second cooling air supply unit 6.
  • the first controller preferably performs control so that the second temperature is higher than the first temperature, and more preferably performs control so that the first temperature is from 10°C to 40°C, and the second temperature is higher than the first temperature by 10°C or more and is from 30°C to 70°C.
  • the melt spinning apparatus 100 may further include a second controller that controls the average air velocity (V 1 ) of cooling air supplied to the first cooling air supply unit 5 and the average air velocity (V 2 ) of cooling air supplied to the second cooling air supply unit 6.
  • the second controller may be the same as or different from the first controller.
  • V 1 refers to the average air velocity of cooling air in the inlet of the first cooling air supply unit 5
  • V 2 refers to the average air velocity of cooling air in the inlet of the second cooling air supply unit 6.
  • the second controller preferably controls the average air velocity of cooling air so that V 2 is more than V 1 in view of preferably suppressing yarn breakage.
  • the second controller preferably performs control so that the ratio of V 1 to V 2 (V 1 /V 2 ) is from more than 0 to 0.7, more preferably performs control so that 0.01 ⁇ V 1 /V 2 ⁇ 0.5 is achieved, and still more preferably performs control so that 0.05 ⁇ V 1 /V 2 ⁇ 0.4 is achieved.
  • the melt spinning apparatus 100 includes the air-permeable partition 8 that separates the cooling air supply unit 4 and the cooling chamber 3 from each other.
  • the air-permeable partition 8 has permeability, and therefore, cooling air supplied from the cooling air supply unit 4 is introduced into the cooling chamber 3 through the air-permeable partition 8.
  • the air-permeable partition 8 is not particularly limited as long as the air-permeable partition 8 is a partition having permeability.
  • the air-permeable partition 8 preferably has a lattice shape such as a quadrangular shape, or a honeycomb shape such as a hexagonal shape or an octagonal shape, and more preferably has a honeycomb shape.
  • the thickness of the air-permeable partition 8 is preferably from 10 mm to 50 mm, and more preferably from 20 mm to 40 mm.
  • the ratio of the thickness of the air-permeable partition to the distance of the gap is preferably from 0.5 to 5.0, more preferably from 0.5 to 1.5, and still more preferably from 0.8 to 1.2.
  • the melt spinning apparatus 100 further includes the drawing unit 9 that draws filaments cooled in the cooling chamber 3.
  • the drawing unit 9 is a thin bottleneck that is arranged at the vertically lower side of the cooling chamber 3, and that is throttled from both right and left sides. In the drawing unit 9, cooling air has an increased air velocity, becomes drawing air, and allows the cooled filaments to be drawn.
  • the ratio of the distance B from the nozzle face 2 to the partition 7 with respect to a distance C from the nozzle face 2 to the inlet of the drawing unit 9 is preferably from 0.2 to 0.8, and more preferably from 0.2 to 0.6.
  • a method of manufacturing a non-woven fabric of the present disclosure is a method of manufacturing a non-woven fabric from filaments spun from plural spinning nozzles using the melt spinning apparatus of the present disclosure. Anon-woven fabric of which the yarn breakage and yarn fluctuation are suppressed can be obtained by the method.
  • the method of manufacturing a non-woven fabric of the present disclosure may include, for example, a step of discharging a resin composition, supplied to a spinning unit, from plural spinning nozzles into a cooling unit, a step of cooling discharged filaments, a step of drawing the cooled filaments, and a step of collecting the drawn filaments to form a non-woven web.
  • the method of producing a non-woven fabric of the present disclosure may further include a step of subjecting the non-woven web to heating and pressurization treatment.
  • the temperature of cooling air supplied to a first cooling air supply unit is from 10°C to 40°C, and the temperature of cooling air supplied to a second cooling air supply unit is higher than the temperature of cooling air supplied to the first cooling air supply unit by 10°C or more and is from 30°C to 70°C.
  • the average air velocity (V 2 ) of cooling air supplied to the second cooling air supply unit is preferably more than the average air velocity (V 1 ) of cooling air supplied to the first cooling air supply unit.
  • the ratio of V 1 to V 2 (V 1 /V 2 ) is preferably from more than 0 to 0.7, more preferably 0.01 ⁇ V 1 /V 2 ⁇ 0.5, and still more preferably 0.05 ⁇ V 1 /V 2 ⁇ 0.4.
  • the average air velocity (V 1 ') of cooling air supplied from the first cooling air supply unit to the cooling unit and the average air velocity (V 2 ') of cooling air supplied from the second cooling air supply unit to the cooling unit may be adjusted by controlling V 1 and V 2 .
  • the ratio of V 1 ' to V 2 ' (V 1 '/V 2 ') may be adjusted to be from more than 0 to 0.7, may be adjusted to be 0.01 ⁇ V 1 '/V 2 ' ⁇ 0.5, and may be adjusted to be 0.1 ⁇ V 1 '/V 2 ' ⁇ 0.5, by controlling V 1 and V 2 .
  • a non-woven fabric was manufactured using a melt spinning apparatus illustrated in Fig. 1 .
  • the melting temperature of the resin was set at 200°C
  • a single-hole discharge rate from a spinning nozzle was set at 0.57 g/min
  • the air velocity of cooling air was set as set forth in Table 1.
  • the temperature of upper-stage cooling air and the temperature of lower-stage cooling air were 23°C
  • the ratio of the height (h 2 ) of a lower-stage cooling air supply unit (second cooling air supply unit) to the height (h 1 ) of an upper-stage cooling air supply unit (first cooling air supply unit) was 1
  • distance B/distance C was 0.47.
  • the thickness of a partition was one 16th of the height of the upper-stage cooling air supply unit.
  • a supply unit inlet value set forth in Table 1 refers to the average air velocity value of cooling air supplied to the inlet of the upper-stage cooling air supply unit or the lower-stage cooling air supply unit.
  • a supply unit outlet value set forth in Table 1 refers to the average air velocity value of cooling air exhausted from the outlet (air-permeable partition) of the upper-stage cooling air supply unit or the lower-stage cooling air supply unit.
  • An ANEMOMASTER ANEMOMETER (Model 6114) manufactured by KANOMAX was used for measuring an air velocity.
  • Fig. 2 and Fig. 3 illustrate graphs, each indicating a relationship between the height of a cooling air supply unit and the air velocity (outlet value) of cooling air in Examples 1 to 3 and Comparative Examples 1 to 6.
  • the height position of the cooling air supply unit corresponds to the upper end of the ordinate of each graph
  • the height position of the lower end of the lower-stage cooling air supply unit corresponds to the lower end of the ordinate of each graph
  • the height position of the partition corresponds to the center of the ordinate of each graph, in Fig. 2 and Fig. 3 .
  • the yarn breakage was evaluated based on observation results obtained by spinning and forming a melt-kneaded propylene homopolymer consecutively for 10 minutes. The results are set forth in Table 1.
  • the yarn fluctuation was evaluated by spinning and forming a melt-kneaded propylene homopolymer and observing the state of yarn fluctuation at the position (height position at which the partition was disposed) of the distance B from the nozzle face in the cooling unit. The results are set forth in Table 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
EP18900577.0A 2018-12-21 2018-12-21 Melt spinning apparatus and non-woven fabric production method Active EP3690086B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2018/047370 WO2020129256A1 (ja) 2018-12-21 2018-12-21 溶融紡糸装置及び不織布の製造方法

Publications (3)

Publication Number Publication Date
EP3690086A1 EP3690086A1 (en) 2020-08-05
EP3690086A4 EP3690086A4 (en) 2020-08-05
EP3690086B1 true EP3690086B1 (en) 2022-05-25

Family

ID=66429866

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18900577.0A Active EP3690086B1 (en) 2018-12-21 2018-12-21 Melt spinning apparatus and non-woven fabric production method

Country Status (6)

Country Link
EP (1) EP3690086B1 (da)
JP (1) JP6510158B1 (da)
KR (1) KR102524390B1 (da)
CN (1) CN113195803B (da)
DK (1) DK3690086T3 (da)
WO (1) WO2020129256A1 (da)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7272195B2 (ja) * 2019-09-12 2023-05-12 王子ホールディングス株式会社 不織布の製造装置
EP4008814A1 (en) 2020-12-04 2022-06-08 Ramina S.R.L. Plant for producing nonwoven fabric
EP4446485A1 (en) * 2021-12-16 2024-10-16 Mitsui Chemicals Asahi Life Materials Co., Ltd. Non-woven fabric, sanitary material, and non-woven fabric manufacturing method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2273105A (en) 1938-08-09 1942-02-17 Du Pont Method and apparatus for the production of artificial structures
US6168406B1 (en) 1998-11-25 2001-01-02 Ching-Kun Tseng Yarn-forming filament cooling apparatus
US20030178742A1 (en) 2002-02-28 2003-09-25 Reifenhauser Gmbh & Co. Maschinenfabrik Arrangement for the continuous production of a filament nonwoven fibrous web
US20060040008A1 (en) 2004-08-20 2006-02-23 Reifenhaeuser Gmbh & Co. Kg Maschinenfabrik Device for the continuous production of a nonwoven web

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3070839A (en) * 1958-12-24 1963-01-01 Du Pont Controlled quenching apparatus
JPS4636421Y1 (da) * 1968-07-25 1971-12-15
JPS5314724Y2 (da) * 1972-12-12 1978-04-19
JPS5323769Y2 (da) * 1974-03-01 1978-06-19
US3999910A (en) * 1975-10-08 1976-12-28 Allied Chemical Corporation Filament quenching apparatus
DE3713862A1 (de) * 1987-04-25 1988-11-10 Reifenhaeuser Masch Verfahren und spinnvliesanlage zur herstellung eines spinnvlieses aus synthetischem endlosfilament
GB2203764B (en) * 1987-04-25 1991-02-13 Reifenhaeuser Masch Production of spun fleece from continuous synthetic filaments
US5173310A (en) * 1988-03-24 1992-12-22 Mitsui Petrochemical Industries, Ltd. Device for cooling molten filaments in spinning apparatus
JPH0647017Y2 (ja) * 1989-07-14 1994-11-30 日本エステル株式会社 紡出糸条の冷却装置
JP2002302862A (ja) * 2001-04-06 2002-10-18 Mitsui Chemicals Inc 不織布の製造方法及び装置
JP3883818B2 (ja) 2001-04-20 2007-02-21 三井化学株式会社 不織布の製造方法及び装置
JP2007063690A (ja) * 2005-08-30 2007-03-15 Teijin Fibers Ltd 糸条冷却装置
JP4271226B2 (ja) * 2006-10-20 2009-06-03 三井化学株式会社 不織布の製造方法及び装置
JP2008231607A (ja) 2007-03-20 2008-10-02 Toray Ind Inc 紡糸用環状冷却装置および溶融紡糸方法
JP2015014071A (ja) * 2013-07-08 2015-01-22 Ｔｍｔマシナリー株式会社 糸条冷却装置
JP6364311B2 (ja) * 2014-10-20 2018-07-25 Ｔｍｔマシナリー株式会社 糸条冷却装置
CN105040125B (zh) * 2015-06-22 2017-05-31 泉州惠安长圣生物科技有限公司 涤纶环吹冷却装置及涤纶纺丝冷却方法及涤纶丝生产方法
CN104862794B (zh) * 2015-06-22 2018-05-29 扬州天富龙汽车内饰纤维有限公司 一种环吹风涤纶纺丝冷却装置及方法
CN106400141B (zh) * 2016-11-15 2019-05-07 东华大学 一种静压熔融纺丝装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2273105A (en) 1938-08-09 1942-02-17 Du Pont Method and apparatus for the production of artificial structures
US6168406B1 (en) 1998-11-25 2001-01-02 Ching-Kun Tseng Yarn-forming filament cooling apparatus
US20030178742A1 (en) 2002-02-28 2003-09-25 Reifenhauser Gmbh & Co. Maschinenfabrik Arrangement for the continuous production of a filament nonwoven fibrous web
US20060040008A1 (en) 2004-08-20 2006-02-23 Reifenhaeuser Gmbh & Co. Kg Maschinenfabrik Device for the continuous production of a nonwoven web

Also Published As

Publication number Publication date
CN113195803B (zh) 2022-12-09
EP3690086A1 (en) 2020-08-05
CN113195803A (zh) 2021-07-30
JP6510158B1 (ja) 2019-05-08
WO2020129256A1 (ja) 2020-06-25
DK3690086T3 (da) 2022-06-27
EP3690086A4 (en) 2020-08-05
KR102524390B1 (ko) 2023-04-20
JPWO2020129256A1 (ja) 2021-02-15
KR20210089768A (ko) 2021-07-16

Similar Documents

Publication Publication Date Title
US11060207B2 (en) Multi-zone spinneret, apparatus and method for making filaments and nonwoven fabrics therefrom
EP3690086B1 (en) Melt spinning apparatus and non-woven fabric production method
DE102005054653B4 (de) Vorrichtung und Verfahren zur Herstellung schmelzgesponnener Filamente
CZ305342B6 (cs) Způsob výroby netkaných textilií a zařízení pro tuto výrobu
DE202018006267U1 (de) Schmelzspinnvorrichtung
KR102670281B1 (ko) 부직포의 제조 방법
KR101323900B1 (ko) 균제도가 우수한 방사 팩 및 이를 사용한 사의 제조방법
KR20230014657A (ko) 필라멘트를 생성하기 위한 노즐 헤드
SA518392079B1 (ar) جهاز لإنتاج قماش مغزول غير منسوج
US20040052883A1 (en) Delayed quench apparatus
US20190106821A1 (en) Apparatus for manufacturing non-woven fabric, method of manufacturing non-woven fabric, and non-woven fabric
KR20080038245A (ko) 흡입 및 분사를 위한 다중 방사 노즐 장치 및 방법
CN110541206B (zh) 用于由连续长丝制造纺粘型非织造织物的设备和方法
US11525191B2 (en) Pack for spinning and method for producing fiber
JP2007500289A (ja) 均一のバットとして連続繊維を集積する方法と装置
DE102013219902A1 (de) Schmelzspinnvorrichtung
US11530494B2 (en) Spinneret and method for manufacturing fiber web
WO2023171363A1 (ja) 複合繊維の製造方法および複合口金
EP2321452B1 (en) Process for producing a plurality of high-strength, high modulus aromatic polyamide filaments
KR20240159561A (ko) 복합 섬유의 제조 방법 및 복합 구금
CN117488417A (zh) 一种用于pbs纺粘无纺布的冷却牵伸装置及其使用方法

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17P Request for examination filed

Effective date: 20190726

A4 Supplementary search report drawn up and despatched

Effective date: 20200221

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

17Q First examination report despatched

Effective date: 20200717

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ODOI, MASAAKI

Inventor name: YOKOYAMA, TETSUYA

Inventor name: KAWADA, ATSUSHI

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20220203

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602018036069

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1494294

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220615

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

Effective date: 20220623

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20220525

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1494294

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220525

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220525

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220926

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220825

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220525

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220525

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220525

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220826

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220525

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220525

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220825

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220525

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220525

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220525

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220525

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220925

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220525

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220525

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220525

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220525

REG Reference to a national code

Ref country code: DE

Ref legal event code: R026

Ref document number: 602018036069

Country of ref document: DE

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220525

26 Opposition filed

Opponent name: REIFENHAEUSER GMBH & CO. KG MASCHINENFABRIK

Effective date: 20230224

RAP4 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: MITSUI CHEMICALS, INC.

PLBP Opposition withdrawn

Free format text: ORIGINAL CODE: 0009264

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220525

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20221221

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20221231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20221221

PLBD Termination of opposition procedure: decision despatched

Free format text: ORIGINAL CODE: EPIDOSNOPC1

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20221231

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20221221

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20221221

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20221231

REG Reference to a national code

Ref country code: DE

Ref legal event code: R100

Ref document number: 602018036069

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20221231

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20221231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220525

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DK

Payment date: 20231227

Year of fee payment: 6

Ref country code: DE

Payment date: 20231214

Year of fee payment: 6

Ref country code: CZ

Payment date: 20231212

Year of fee payment: 6

PLBM Termination of opposition procedure: date of legal effect published

Free format text: ORIGINAL CODE: 0009276

27C Opposition proceedings terminated

Effective date: 20231117

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20181221

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220525

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220525

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220525

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220525

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220525

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220525

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 602018036069

Country of ref document: DE

Owner name: MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD, JP

Free format text: FORMER OWNER: MITSUI CHEMICALS, INC., TOKYO, JP