WO2017014109A1 - Procédé de fabrication et dispositif de fabrication de nontissé en fibres ultrafines - Google Patents

Procédé de fabrication et dispositif de fabrication de nontissé en fibres ultrafines Download PDF

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Publication number
WO2017014109A1
WO2017014109A1 PCT/JP2016/070580 JP2016070580W WO2017014109A1 WO 2017014109 A1 WO2017014109 A1 WO 2017014109A1 JP 2016070580 W JP2016070580 W JP 2016070580W WO 2017014109 A1 WO2017014109 A1 WO 2017014109A1
Authority
WO
WIPO (PCT)
Prior art keywords
nonwoven fabric
fiber nonwoven
ultrafine fiber
spinning die
slit
Prior art date
Application number
PCT/JP2016/070580
Other languages
English (en)
Japanese (ja)
Inventor
弘和 末光
後藤　雅宏
原田　剛
Original Assignee
株式会社化繊ノズル製作所
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
Application filed by 株式会社化繊ノズル製作所 filed Critical 株式会社化繊ノズル製作所
Priority to US15/746,224 priority Critical patent/US20180209081A1/en
Priority to EP16827669.9A priority patent/EP3327181A4/fr
Publication of WO2017014109A1 publication Critical patent/WO2017014109A1/fr

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Classifications

    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D04H3/03—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments at random
    • D04H3/033—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments at random reorientation immediately after yarn or filament formation
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • 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
    • D01D4/025—Melt-blowing or solution-blowing dies
    • 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
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/016—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the fineness
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
    • 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
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2503/00—Domestic or personal
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00—Industrial
    • D10B2505/04—Filters

Definitions

  • the present invention relates to a manufacturing method and a manufacturing apparatus for an ultra-fine fiber nonwoven fabric, and particularly relates to a manufacturing method with excellent productivity and a space-saving manufacturing apparatus.
  • ultrafine fiber nonwoven fabrics are manufactured using a substantially rectangular parallelepiped spinning die having nozzle holes for discharging a molten thermoplastic polymer and slits for ejecting hot air from both sides of the nozzle holes. Yes.
  • a number of nozzle holes are arranged in the longitudinal direction of a substantially rectangular parallelepiped spinning die.
  • the spinning die is installed such that the longitudinal direction is the width direction of the ultrafine fiber nonwoven fabric.
  • many ultra fine fibers are discharged from a nozzle hole, this is deposited, and an ultra fine fiber nonwoven fabric is manufactured.
  • FIG. 1 A schematic cross-sectional view of such a spinning die is as shown in FIG. That is, the front and back direction of the paper surface is the longitudinal direction of the spinning die 1, and the nozzle holes 2 are arranged at a predetermined interval in the longitudinal direction of the spinning die 1 (front and back direction of the paper surface).
  • the molten thermoplastic polymer flows downward from the polymer flow path 3 and reaches the nozzle hole 2 from the upper end of the nozzle.
  • the hot air is jetted from the slits 4 and 4 provided on both sides of the nozzle hole 2 through the hot air passages 5 and 5 from the pipes 6 and 6 through which the pressurized hot air flows.
  • thermoplastic polymer that has reached the nozzle hole 2 is blown in the axial direction of the nozzle by the hot air blown from the slits 4 and 4, and ultrafine fibers are obtained.
  • a similar one to the spinning die is also described in Patent Document 1.
  • the spinning die 1 has the disadvantage that the pipes 6 and 6, the hot air flow paths 5 and 5, and the slits 4 and 4 need to be arranged on both sides of the nozzle hole 2, and the spinning die 1 becomes large.
  • An object of the present invention is to eliminate such drawbacks and to downsize a spinning die.
  • Another object is to improve the productivity of the ultrafine fiber nonwoven fabric by downsizing the spinning die and arranging a plurality of spinning dies in parallel.
  • the present inventors have made various studies, and have come to realize that it is not always necessary to arrange slits on both sides of the nozzle hole.
  • the conventional spinning die is provided with slits on both sides of the nozzle hole because the thermoplastic polymer discharged from the nozzle hole 2 is sprayed in the axial direction of the nozzle, and the discharged ultrafine fibers are axially rotated. This is presumed to be due to stretching in the direction to increase the strength of the ultrafine fiber.
  • it has been found that the drawing effect is hardly obtained even when hot air is blown in the axial direction of the ultrafine fibers in a state where the ultrafine fibers are floating in the atmosphere.
  • the present inventor has obtained the knowledge that when an ultrafine fiber nonwoven fabric is produced by blowing hot air from only one side of the nozzle hole, an ultrafine fiber nonwoven fabric equivalent to a conventional product can be obtained.
  • the present invention is based on such knowledge. That is, the present invention provides a process of obtaining a superfine fiber by discharging a thermoplastic polymer from a plurality of nozzle holes arranged in a longitudinal direction at a lower end of a substantially rectangular parallelepiped spinning die, provided only on one side of the nozzle hole.
  • the present invention relates to a method for producing an ultrafine fiber nonwoven fabric characterized by comprising a step of depositing ultrafine fibers. Moreover, it is related with the manufacturing apparatus used for this manufacturing method.
  • the manufacturing method according to the present invention is performed using a specific spinning die.
  • An example of the specific spinning die is the spinning die shown in FIG. FIG. 2 is a schematic cross-sectional view of a substantially rectangular parallelepiped spinning die, and the front and back direction of the paper surface is the longitudinal direction of the spinning die 1.
  • a plurality of nozzle holes 2 are arranged at predetermined intervals in the longitudinal direction of the spinning die 1 (front and back direction on the paper surface).
  • the molten thermoplastic polymer is supplied to the nozzle hole 2 through the polymer flow path 3. And a thermoplastic polymer is discharged from the nozzle hole 2, and an ultrafine fiber is formed.
  • the slit 4 is provided only on the right side of the nozzle hole 2. Hot air is supplied to the slit 4 through a hot air passage 5 from a pipe 6 through which pressurized hot air flows. Therefore, the ultrafine fibers discharged from the nozzle hole 2 are blown to the left side with respect to the axial direction of the nozzle by the hot air jetted from the slit 4.
  • the axial direction of the nozzle and the blowing direction of the ultrafine fibers are directions as shown in FIG.
  • the axial direction of the nozzle and the blowing direction of the ultrafine fibers are inclined at a constant angle ⁇ . This angle ⁇ may be any value, but is generally preferably in the range of 30-60 °. Needless to say, in order to set the spray direction of the ultrafine fibers to a constant angle ⁇ , the angle at which the hot air is ejected should be ⁇ with respect to the axial direction of the nozzle.
  • Ultra fine fibers are sprayed in a direction inclined at a constant angle ⁇ with respect to the axial direction of the nozzle. At this time, it is necessary to suck the ultrafine fibers below the spinning nozzle 1. If such suction is not performed, it becomes difficult for the ultrafine fibers to be uniformly deposited on the conveyor installed below the spinning nozzle 1, and the quality of the obtained ultrafine fiber nonwoven fabric is deteriorated.
  • the suction is generally performed by reducing the pressure using a suction box from below a breathable conveyor such as a net conveyor.
  • the slit 4 is provided only on the right side of the nozzle hole 2, but the slit 4 may be provided only on the left side of the nozzle hole 2. That is, the spinning die 1 is symmetrical to the spinning die 1 of FIG. 2, and FIG. 4 is a schematic cross-sectional view of the spinning die 1.
  • the apparatus used in the manufacturing method according to the present invention includes the spinning die 1 shown in FIG. 2 and / or FIG.
  • the spinning die 1 is provided with a tube for supplying heated hot air and a tube for supplying a thermoplastic polymer.
  • the apparatus provided with the spinning die 1 shown in FIG. 2 or 4 may be used, or the apparatus provided with the spinning die 1 shown in FIG.
  • a combination of two or more (for example, FIG. 5) or a combination of two or more apparatuses including the spinning die 1 shown in FIG. 4 (for example, FIG. 6) may be used.
  • a combination of the spinning die 1 shown in FIG. 2 and the spinning die 1 shown in FIG. 4 for example, FIG. 7 or FIG.
  • the combination apparatus shown in FIG. 7 is one in which the hot air ejection direction is opposite.
  • the combination apparatus shown in FIG. 8 is such that the hot air ejection direction is away from each other.
  • this combination apparatus may be formed by bringing two or more apparatuses into close contact with each other, or may be formed from a single body.
  • the ultrafine fiber generally has a fiber diameter of about 1 to 15 ⁇ m.
  • examples of the thermoplastic polymer used include polyolefin, polyamide, and polyester.
  • the diameter of the nozzle hole 2 is about 0.1 to 0.5 mm, and at the lower end of the spinning die 1, about 30 to 100 nozzle holes 2 / inch are provided in the longitudinal direction.
  • the length of the nozzle is about 1 to 5 mm.
  • the mixed ultrafine fiber nonwoven fabric can be obtained by changing the type of thermoplastic polymer discharged from each device.
  • a polyester / polypropylene ultrafine fiber nonwoven fabric can be obtained by discharging polyester from one apparatus and discharging polypropylene from another apparatus.
  • a mixed fiber ultrafine fiber nonwoven fabric can be obtained by changing the diameter of the nozzle hole 2 of each apparatus. For example, by setting the diameter of the nozzle hole 2 of one apparatus to 0.1 mm and the diameter of the nozzle hole 2 of another apparatus to 0.5 mm, an ultrafine fiber nonwoven fabric in which ultrafine fibers having different fiber diameters are mixed is used. Obtainable.
  • the ultrafine fiber nonwoven fabric obtained by the production method according to the present invention is used for applications such as filter materials and wipes, as in the case of conventional ones.
  • the apparatus according to the present invention is provided with piping, hot air flow paths and slits through which hot air is circulated only on one side of the nozzle hole, as is apparent from the comparison with the conventional apparatus of FIG. There is an effect that can be miniaturized. In addition, even if two devices according to the present invention are combined, the size is the same as that of a conventional device, so that using such a device can improve the productivity of the ultrafine fiber nonwoven fabric by a factor of two. There is an effect.
  • FIG. 5 is a schematic cross-sectional view of a combination device in which the spinning die shown in FIG. 2 and the spinning die shown in FIG. 4 are combined, and the hot air blowing directions are opposed to each other.
  • FIG. 5 is a schematic cross-sectional view of a combination device in which the spinning die shown in FIG. 2 and the spinning die shown in FIG. 4 are combined and the hot air ejection direction is away from each other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

Le problème décrit par la présente invention est de réduire la taille d'une matrice 1 de filage de fibres utilisée dans la fabrication de nontissé en fibres ultrafines et d'améliorer ainsi la productivité de nontissé en fibres ultrafines. La matrice 1 de filage est de forme sensiblement cubique, et est constituée d'une pluralité de trous de buse 2 disposés dans la direction longitudinale sur l'extrémité inférieure longitudinale de la matrice 1 de filage, et d'une fente de pulvérisation d'air chaud agencée seulement sur un côté des trous de buse 2. Un polymère thermoplastique est évacué par les trous de buse 2 de ladite matrice 1 de filage, et des fibres ultrafines sont obtenues. Ladite fente 4 agencée seulement sur un côté des trous de buse 2 est conçue pour pulvériser de l'air chaud. Ainsi, les fibres ultrafines qui sont évacuées sont pulvérisées à une inclinaison par rapport à la direction de la ligne axiale des buses. Les fibres ultrafines pulvérisées sont tirées vers le bas à partir de la matrice 1 de filage et sont déposées. Un nontissé en fibres ultrafines est ainsi obtenu.
PCT/JP2016/070580 2015-07-22 2016-07-12 Procédé de fabrication et dispositif de fabrication de nontissé en fibres ultrafines WO2017014109A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US15/746,224 US20180209081A1 (en) 2015-07-22 2016-07-12 Method for manufacturing and device for manufacturing ultrafine fiber nonwoven fabric
EP16827669.9A EP3327181A4 (fr) 2015-07-22 2016-07-12 Procédé de fabrication et dispositif de fabrication de nontissé en fibres ultrafines

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-144966 2015-07-22
JP2015144966A JP6063012B1 (ja) 2015-07-22 2015-07-22 極細繊維不織布の製造方法及び製造装置

Publications (1)

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WO2017014109A1 true WO2017014109A1 (fr) 2017-01-26

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US (1) US20180209081A1 (fr)
EP (1) EP3327181A4 (fr)
JP (1) JP6063012B1 (fr)
WO (1) WO2017014109A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018235866A1 (fr) * 2017-06-21 2018-12-27 エム・テックス株式会社 Buse d'évacuation destinée à un dispositif de fabrication de nano-fibres et dispositif de fabrication de nano-fibres comportant la buse d'évacuation

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110453295A (zh) * 2019-09-19 2019-11-15 嘉兴学院 一种熔喷纺丝喷头结构
CN111519261A (zh) * 2020-05-06 2020-08-11 苏州宥安骏精密科技有限公司 熔喷模头、喷嘴板及喷嘴板模具
CN112176437A (zh) * 2020-09-24 2021-01-05 佛山市龙生光启科技有限公司 一种基于热循环的智能节能型熔喷布制造装置
CN112323154A (zh) * 2020-10-28 2021-02-05 常州市腾诚机械制造有限公司 一种能够消除局部堵塞的碳纤维熔喷模头
CN113373594A (zh) * 2021-07-01 2021-09-10 佛山市启新模具有限公司 一种多排孔喷头的熔喷布模具

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EP1239063A1 (fr) * 2001-01-31 2002-09-11 Christian Heinrich Sandler GmbH & Co. KG Procédé de production de non-tissés obtenus par fusion-soufflage, non-tissés obtenus par ledit procédé et utilisation de tels non-tissés
JP2003286648A (ja) * 2002-03-26 2003-10-10 Nippon Petrochemicals Co Ltd フィラメントが一方向に配列されたウェブの製造方法および該ウェブの製造装置
JP2014088639A (ja) * 2012-10-30 2014-05-15 Kasen Nozuru Seisakusho:Kk 極細繊維不織布の製造装置
JP5946569B1 (ja) * 2015-04-17 2016-07-06 紘邦 張本 メルトブロー用口金及び極細繊維製造装置

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KR20110059541A (ko) * 2009-11-27 2011-06-02 니혼바이린 가부시기가이샤 방사 장치, 부직포 제조 장치, 부직포의 제조 방법 및 부직포

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Publication number Priority date Publication date Assignee Title
EP1239063A1 (fr) * 2001-01-31 2002-09-11 Christian Heinrich Sandler GmbH & Co. KG Procédé de production de non-tissés obtenus par fusion-soufflage, non-tissés obtenus par ledit procédé et utilisation de tels non-tissés
JP2003286648A (ja) * 2002-03-26 2003-10-10 Nippon Petrochemicals Co Ltd フィラメントが一方向に配列されたウェブの製造方法および該ウェブの製造装置
JP2014088639A (ja) * 2012-10-30 2014-05-15 Kasen Nozuru Seisakusho:Kk 極細繊維不織布の製造装置
JP5946569B1 (ja) * 2015-04-17 2016-07-06 紘邦 張本 メルトブロー用口金及び極細繊維製造装置

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Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018235866A1 (fr) * 2017-06-21 2018-12-27 エム・テックス株式会社 Buse d'évacuation destinée à un dispositif de fabrication de nano-fibres et dispositif de fabrication de nano-fibres comportant la buse d'évacuation
CN111542652A (zh) * 2017-06-21 2020-08-14 艾姆特克斯股份有限公司 纳米纤维制造装置用的排出喷嘴以及具有排出喷嘴的纳米纤维制造装置

Also Published As

Publication number Publication date
JP6063012B1 (ja) 2017-01-18
US20180209081A1 (en) 2018-07-26
JP2017025433A (ja) 2017-02-02
EP3327181A1 (fr) 2018-05-30
EP3327181A4 (fr) 2019-02-20

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