EP3812489A1 - Walzenoberfläche für die lyocell-filamentherstellung - Google Patents
Walzenoberfläche für die lyocell-filamentherstellung Download PDFInfo
- Publication number
- EP3812489A1 EP3812489A1 EP19204806.4A EP19204806A EP3812489A1 EP 3812489 A1 EP3812489 A1 EP 3812489A1 EP 19204806 A EP19204806 A EP 19204806A EP 3812489 A1 EP3812489 A1 EP 3812489A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- sections
- surface tension
- filament
- liquid
- 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.)
- Withdrawn
Links
- 229920000433 Lyocell Polymers 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 claims description 42
- 239000007788 liquid Substances 0.000 claims description 23
- 238000005345 coagulation Methods 0.000 claims description 8
- 230000015271 coagulation Effects 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 8
- 229920001059 synthetic polymer Polymers 0.000 claims description 7
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 13
- 229920002678 cellulose Polymers 0.000 description 11
- 239000001913 cellulose Substances 0.000 description 11
- 239000000835 fiber Substances 0.000 description 9
- 238000009987 spinning Methods 0.000 description 9
- 229920000642 polymer Polymers 0.000 description 8
- 238000000576 coating method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000001627 detrimental effect Effects 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229920003043 Cellulose fiber Polymers 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229920001747 Cellulose diacetate Polymers 0.000 description 1
- 229920002284 Cellulose triacetate Polymers 0.000 description 1
- LFTLOKWAGJYHHR-UHFFFAOYSA-N N-methylmorpholine N-oxide Chemical compound CN1(=O)CCOCC1 LFTLOKWAGJYHHR-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- NZZFYRREKKOMAT-UHFFFAOYSA-N diiodomethane Chemical compound ICI NZZFYRREKKOMAT-UHFFFAOYSA-N 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000000578 dry spinning Methods 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
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
- D01D7/00—Collecting the newly-spun products
-
- 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
- D01D10/04—Supporting filaments or the like during their treatment
- D01D10/0436—Supporting filaments or the like during their treatment while in continuous movement
- D01D10/0454—Supporting filaments or the like during their treatment while in continuous movement using reels
-
- 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
- D01D13/00—Complete machines for producing artificial threads
- D01D13/02—Elements of machines in combination
-
- 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
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
Definitions
- the present invention relates to the surface adaptation of a roller to be employed in the production of cellulose filament yarns.
- Continuous filament yarns are widely used in the textile industry to produce fabrics with a distinct character compared to fabrics produced from yarns made using staple fibers.
- a continuous filament yarn is one in which all of the fibers are continuous throughout any length of the yarn.
- a continuous filament yarn will commonly consist of 10 to 300 or more individual filaments which are all parallel to each other and the axis of the yarn when produced.
- the yarn is produced by extruding a solution or melt of a polymer or a polymer derivative and then winding the yarn produced onto a bobbin or reel or by forming a cake by centrifugal winding.
- Synthetic polymer continuous filament yarns are common.
- nylon, polyester and polypropylene continuous filament yarns are used in a wide variety of fabrics. They are produced by melt spinning a molten polymer through a spinneret with a number of holes corresponding to the number of filaments required in the yarn produced. After the molten polymer has started to solidify, the yarn may be drawn to orient the polymer molecules and improve the properties of the yarn.
- Continuous filament yarns can also be spun from cellulose derivatives such as cellulose diacetate and cellulose triacetate by dry spinning. The polymer is dissolved in a suitable solvent and then extruded through a spinneret. The solvent evaporates quickly after extrusion causing the polymer to precipitate in the form of filaments forming a yarn. The newly produced yarn may be drawn to orient the polymer molecules.
- Lyocell technology is a technology based on the direct dissolution of cellulose wood pulp or other cellulose-based feedstock in a polar solvent (for example n-methyl morpholine n-oxide, hereinafter referred to as 'amine oxide') to produce a viscous highly shear-thinning solution which can be formed into a range of useful cellulose-based materials.
- a polar solvent for example n-methyl morpholine n-oxide, hereinafter referred to as 'amine oxide'
- the technology is used to produce a family of cellulose staple fibers (commercially available from Lenzing AG, Lenzing, Austria under the trademark TENCEL®) which are widely used in the textile and nonwovens industries.
- Other cellulose products from lyocell technology such as filaments, films, casings, beads & nonwoven webs have also been disclosed.
- EP 823945 B1 discloses a process for the manufacture of cellulose fibers, which comprises the extrusion and coagulation of a cellulose spinning solution in accordance with the lyocell process, mandatorily comprising a step of drawing the filaments and cutting the filaments into cellulose fibers, which may be used in various fields of application.
- Process step of drawing the coagulated cellulose filaments is essential according to the teaching of this prior art technology in order to obtain in particular staple fibers with a desired balance of properties.
- EP 0 853 146 A2 discloses a process for the preparation of cellulosed based fibers. According to the teaching of this document two different raw materials having widely differing molecular weights are mixed in order to obtain fibers.
- WO 98/06754 discloses a similar method, which require that the two different raw materials are first dissolved separately, before admixing the prepared solution to obtain a spinning solution.
- DE 199 54 152 A1 discloses a method of preparing fibers, wherein spinning solutions having a relatively low temperature are employed.
- the benefits of cellulose filament yarns produced from lyocell spinning solution have been described (Krüger, Lenzinger Berichte 9/94, S. 49 ff.).
- attempts have been made to increase spinning speeds in the lyocell process to values of several hundred meters per second.
- various problems may occur, including unsatisfactory high proportion of defects in the individual filaments produced, which may result in a high proportion of products which are not suitable for further use and/or result in stoppage of production.
- the filaments and/or filament bundles after the initial filament coagulation in a coagulation bath, are transported by means of various rollers to the further stages of the process, such as washing etc..
- the filaments or filament bundles are still susceptible to damage and/or may undesirably adhere to each other when they come into contact, so that care has to be taken that the passage of the filaments or filament bundles around the rollers does not lead to undesired impact on the filaments produced.
- Example of such negative impacts are slippage due to unsatisfactory adhesion to the roller surface, axial movement of the filaments or filament bundles on the roller surface (i.e.
- the present invention provides the roller as defined in claim 1 as well as the method according to claim 2.
- Preferred embodiments are given in claims 3 to 11 and the specification, as well as in use claims 12 to 15.
- the lyocell process comprises, after preparation of the spinning solution, the extrusion of filaments through nozzles, followed in most cases by an initial cooling in an air gap, followed by coagulation in a bath. Thereafter the filaments or filament bundles are taken up, usually by a guidance roller to guide the product to the further process steps, such as liquid removal and washing steps. Also during these stages the filaments or filament bundles are moved to the next process steps by means of rollers. Additional stages of filament production may be stages to apply further substances to the filament or the filament yarn, such as application of finishing agents etc.
- these requirements for the roller surface are not easily fulfilled, as the different requirements due to the fiber nature are conflicting.
- these requirements may be different at the different production stages identified above.
- the adhesion to the surface should be as high as possible.
- the filaments or filament bundles have to detach themselves from the roller surface (i.e. release of the filaments and/or filament bundles from the roller surface without exerting undesired high mechanical forces on the filaments or filament bundles), which requires that adhesion is as low as possible. Accordingly, it is required to find a solution in order to comply with these conflicting demands.
- the surface of the roller to be in contact with the lyocell filament or filament bundle is selected so that the roller surface comprises first sections displaying a surface tension so that, depending on the liquid adhering to the filament or yarn, one of the following conditions is fulfilled:
- creases or grooves preferably extending parallel to the axis of the roller, on the roller surface.
- the (theoretical) surface of the roller changes from the principle high surface tension material employed for the roller (fulfilling the requirements identified above required for good adhesion) by means of simply providing an absent surface (i.e. air).
- an "absent" surface is considered in the context of the present invention as a material having a low surface tension.
- these creases or grooves are filled with water, which likewise provides a surface tension within the required range.
- a further option is the reduction of the surface roughness, as also this will lead to surface tension values for the detachment sections in the range as identified above.
- creases or grooves preferably these are provided with a breadth (i.e. the dimension perpendicular to the axis of the roller) in the range of from 0.5 to 5 mm, preferably 1.5 to 2.5 mm.
- the distance between two such grooves or creases may be in the range of from 2 to 25 mm, preferably 2.5 to 10 mm, more preferably 3 to 4.5 mm.
- This dimension may also be employed with respect to the coating of the roller surface in order to create detachment points, for example by using synthetic polymers.
- first sections are made from the first sections.
- these sections typically are made from the principle material used for roller surface manufacture, it often is commercially beneficial if these surface sections make up the majority of the roller surface.
- Typical first section proportions in relation with the overall roller surface are from 40 to 95%, preferably from 50 to 80%, including from 60 to 70%.
- the roller surface consists of the first sections only.
- the creases and grooves as well as the micro-cracks or micro-fissures to be provided on the roller surface may be prepared in accordance with methods known to the skilled person, by appropriate surface treatment methods, such as etching processes.
- the skilled person is in a position to coat the roller surface, for example, with synthetic polymers in order to create coatings providing the detachments sections.
- the provision of sections with reduced surface roughness is likewise well within the usual practice of the skilled person.
- Suitable materials for the high surface tension section of the roller surface are in particular metals, in particular iron based materials, stainless steel, chromium, aluminum etc.. However, it has been found that as long as the surface tension requirement is fulfilled, that also other materials may be employed, such as ceramics.
- the materials suitable for providing the detachment sections typically, in case that not simply creases or grooves are provided, are synthetic polymers, such as PVC, PA, polyolefins, PTFE, PET, PMMA, etc. In order to facilitate production of a roller surface as provided by the present invention, the use of thermoplastic polymers is preferred.
- the present invention proposes to use a roller as defined and described herein during lyocell filament production, in particular as the guidance roller taking up the filaments or filament bundles after coagulation, but also for any subsequent roller employed for example during liquid removal, washing or drying operations.
- rollers Using chromium plated steel rollers lyocell filaments where produced.
- the surface tension of the roller was determined according to the methodology described below. Using rollers having surfaces with surface tensions of about 37 mN/m (surface tension of roller about 0.5 times the surface tension of the washing liquid) high quality lyocell filament yarns could be produced without any problems concerning filament breakage etc. even during high speed filament production. Similar results were obtained using roller surfaces with surface tensions of about 44, 56, 93 and 185 mN/m, i.e. with factors 0.6, 0.75, 1.3 and 2.4.
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)
- Artificial Filaments (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19204806.4A EP3812489A1 (de) | 2019-10-23 | 2019-10-23 | Walzenoberfläche für die lyocell-filamentherstellung |
EP20792988.6A EP4048831A1 (de) | 2019-10-23 | 2020-10-21 | Walzenoberfläche |
US17/771,283 US20220396899A1 (en) | 2019-10-23 | 2020-10-21 | Roller surface |
KR1020227017333A KR20220082084A (ko) | 2019-10-23 | 2020-10-21 | 롤러 표면 |
CN202080074059.9A CN114585778A (zh) | 2019-10-23 | 2020-10-21 | 辊表面 |
BR112022005966A BR112022005966A2 (pt) | 2019-10-23 | 2020-10-21 | Superfície de rolo |
PCT/EP2020/079560 WO2021078768A1 (en) | 2019-10-23 | 2020-10-21 | Roller surface |
JP2022524060A JP2022553731A (ja) | 2019-10-23 | 2020-10-21 | ローラー表面 |
TW109136748A TWI828947B (zh) | 2019-10-23 | 2020-10-22 | 滾筒、選擇彼之方法及彼之用途 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19204806.4A EP3812489A1 (de) | 2019-10-23 | 2019-10-23 | Walzenoberfläche für die lyocell-filamentherstellung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3812489A1 true EP3812489A1 (de) | 2021-04-28 |
Family
ID=68342627
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19204806.4A Withdrawn EP3812489A1 (de) | 2019-10-23 | 2019-10-23 | Walzenoberfläche für die lyocell-filamentherstellung |
EP20792988.6A Pending EP4048831A1 (de) | 2019-10-23 | 2020-10-21 | Walzenoberfläche |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20792988.6A Pending EP4048831A1 (de) | 2019-10-23 | 2020-10-21 | Walzenoberfläche |
Country Status (8)
Country | Link |
---|---|
US (1) | US20220396899A1 (de) |
EP (2) | EP3812489A1 (de) |
JP (1) | JP2022553731A (de) |
KR (1) | KR20220082084A (de) |
CN (1) | CN114585778A (de) |
BR (1) | BR112022005966A2 (de) |
TW (1) | TWI828947B (de) |
WO (1) | WO2021078768A1 (de) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997023667A1 (en) * | 1995-12-21 | 1997-07-03 | Courtaulds Fibres (Holdings) Limited | Fibre manufacture |
EP0823945A1 (de) | 1996-03-04 | 1998-02-18 | Lenzing Aktiengesellschaft | Verfahren zur herstellung cellulosischer fasern |
WO1998006754A1 (de) | 1996-08-14 | 1998-02-19 | Akzo Nobel N.V. | Verfahren zur herstellung cellulosischer formkörper |
EP0853146A2 (de) | 1997-01-09 | 1998-07-15 | Akzo Nobel N.V. | Verfahren zur Herstellung von cellulosischen Fasern und cellulosische Fasern |
DE19954152A1 (de) | 1999-11-10 | 2000-07-20 | Thueringisches Inst Textil | Verfahren und Vorrichtung zur Herstellung von Cellulosefasern und Cellulosefilamentgarnen |
DE102005040001A1 (de) * | 2005-08-23 | 2006-03-09 | Zimmer Ag | Kombinierte Umlenk- und Absaug-/Überlaufeinrichtung, insbesondere für Lyocell-Anlagen |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL242714A (de) * | 1958-08-26 | |||
JPS6032041Y2 (ja) * | 1978-11-07 | 1985-09-25 | 帝人株式会社 | 糸条処理ロ−ラ |
JPH076084B2 (ja) * | 1987-08-24 | 1995-01-25 | 日機装株式会社 | 紡糸ガイド |
DE10065859B4 (de) * | 2000-12-22 | 2006-08-24 | Gerking, Lüder, Dr.-Ing. | Verfahren und Vorrichtung zur Herstellung von im Wesentlichen endlosen feinen Fäden |
DE102005048939A1 (de) * | 2005-07-01 | 2007-01-11 | Carl Freudenberg Kg | Vorrichtung, Anordnung und Verfahren zur Herstellung von Fasern und eine solche Fasern umfassende Anordnung |
JP5302821B2 (ja) * | 2009-08-10 | 2013-10-02 | 住友ゴム工業株式会社 | 押圧装置、及びそれを用いた空気入りタイヤの製造方法 |
CN105887226B (zh) * | 2016-06-29 | 2019-06-25 | 中国纺织科学研究院有限公司 | 纤维素纤维丝束的制备装置及制备方法、该纤维丝束 |
EP3385433A1 (de) * | 2017-04-03 | 2018-10-10 | Lenzing Aktiengesellschaft | Cellulosefaservliesstoff mit massgeschneiderter flüssigkeitsabsorbtionsfähigkeit |
-
2019
- 2019-10-23 EP EP19204806.4A patent/EP3812489A1/de not_active Withdrawn
-
2020
- 2020-10-21 BR BR112022005966A patent/BR112022005966A2/pt unknown
- 2020-10-21 WO PCT/EP2020/079560 patent/WO2021078768A1/en active Application Filing
- 2020-10-21 CN CN202080074059.9A patent/CN114585778A/zh active Pending
- 2020-10-21 US US17/771,283 patent/US20220396899A1/en active Pending
- 2020-10-21 EP EP20792988.6A patent/EP4048831A1/de active Pending
- 2020-10-21 JP JP2022524060A patent/JP2022553731A/ja active Pending
- 2020-10-21 KR KR1020227017333A patent/KR20220082084A/ko unknown
- 2020-10-22 TW TW109136748A patent/TWI828947B/zh active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997023667A1 (en) * | 1995-12-21 | 1997-07-03 | Courtaulds Fibres (Holdings) Limited | Fibre manufacture |
EP0823945A1 (de) | 1996-03-04 | 1998-02-18 | Lenzing Aktiengesellschaft | Verfahren zur herstellung cellulosischer fasern |
WO1998006754A1 (de) | 1996-08-14 | 1998-02-19 | Akzo Nobel N.V. | Verfahren zur herstellung cellulosischer formkörper |
EP0853146A2 (de) | 1997-01-09 | 1998-07-15 | Akzo Nobel N.V. | Verfahren zur Herstellung von cellulosischen Fasern und cellulosische Fasern |
DE19954152A1 (de) | 1999-11-10 | 2000-07-20 | Thueringisches Inst Textil | Verfahren und Vorrichtung zur Herstellung von Cellulosefasern und Cellulosefilamentgarnen |
DE102005040001A1 (de) * | 2005-08-23 | 2006-03-09 | Zimmer Ag | Kombinierte Umlenk- und Absaug-/Überlaufeinrichtung, insbesondere für Lyocell-Anlagen |
Non-Patent Citations (1)
Title |
---|
OLGA SANTOS ET AL: "Modified stainless steel surfaces targeted to reduce fouling--surface characterization", JOURNAL OF FOOD ENGINEERING, vol. 64, no. 1, 1 September 2004 (2004-09-01), GB, pages 63 - 79, XP055678925, ISSN: 0260-8774, DOI: 10.1016/j.jfoodeng.2003.09.013 * |
Also Published As
Publication number | Publication date |
---|---|
EP4048831A1 (de) | 2022-08-31 |
BR112022005966A2 (pt) | 2022-06-28 |
WO2021078768A1 (en) | 2021-04-29 |
US20220396899A1 (en) | 2022-12-15 |
CN114585778A (zh) | 2022-06-03 |
JP2022553731A (ja) | 2022-12-26 |
TW202129107A (zh) | 2021-08-01 |
KR20220082084A (ko) | 2022-06-16 |
TWI828947B (zh) | 2024-01-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
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 | |
RU2747297C1 (ru) | Способ изготовления целлюлозного волокна | |
EP0034880B1 (de) | Verfahren zur Herstellung eines Endlosgarnes durch Schmelzspinnen von Polyäthylenterephthalat und nach dem Verfahren hergestellte Polyestergarne | |
WO2016052269A1 (ja) | ポリエステルフィラメントパッケージ | |
CN107130311A (zh) | 一种涤纶半光细旦poy纤维及其生产方法 | |
CN104838048B (zh) | 用于成形制品的凝固的纺织浴和方法 | |
JP5386951B2 (ja) | 油剤塗布装置 | |
EP3812489A1 (de) | Walzenoberfläche für die lyocell-filamentherstellung | |
CN106319651A (zh) | 锦纶6细旦牵伸丝的制备方法 | |
CN107326456A (zh) | 一种利用基础油剂作为第一道上油的活化丝生产方法 | |
CN2797388Y (zh) | 三组份多功能熔体复合纺丝poy-fdy两用机 | |
JPS5817292B2 (ja) | テクスチヤ−ドカコウシオ セイゾウスルタメノ ボウシエンシンテクスチヤ−ドカコウホウホウ | |
JP7260650B2 (ja) | セルロースフィラメント製造方法 | |
JP4593865B2 (ja) | 機械的細化を用いたメルトブロー法 | |
CN113242917B (zh) | 从纤维素长丝纱线或纤维中去除液体的方法 | |
KR910004462B1 (ko) | 방사관식 습식방사법 | |
RU2787860C1 (ru) | Способ получения целлюлозных элементарных нитей | |
WO2018139651A1 (ja) | 無捲縮短繊維の製造方法、及び得られた無捲縮短繊維を含む湿式不織布 | |
KR950002807B1 (ko) | 폴리프로필렌 섬유의 일공정 고속 제조방법 | |
JPS62250219A (ja) | ポリアミドの高速紡糸方法 | |
CA1152273A (en) | Process for forming a continuous filament yarn from a melt spinnable synthetic polymer and novel polyester yarns produced by the process | |
TW200526827A (en) | Spinneret for producing circular cross section yarn and process for making the same | |
JPS61282407A (ja) | 紡糸口金 | |
JPS63165512A (ja) | ポリアミド繊維の直接紡糸延伸方法 | |
JPH0617314A (ja) | 溶融紡糸方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
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: THE APPLICATION HAS BEEN PUBLISHED |
|
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 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20211029 |