EP4359592A4 - HIGH POPULATION OF CLOSED C-SHAPED FIBERS - Google Patents

HIGH POPULATION OF CLOSED C-SHAPED FIBERS

Info

Publication number
EP4359592A4
EP4359592A4 EP22829352.8A EP22829352A EP4359592A4 EP 4359592 A4 EP4359592 A4 EP 4359592A4 EP 22829352 A EP22829352 A EP 22829352A EP 4359592 A4 EP4359592 A4 EP 4359592A4
Authority
EP
European Patent Office
Prior art keywords
closed
shaped fibers
high population
population
fibers
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.)
Pending
Application number
EP22829352.8A
Other languages
German (de)
French (fr)
Other versions
EP4359592A1 (en
Inventor
Griffin Joseph Fiedler
Gerald Ned Scott
Ronald G Bowman
Elizabeth D Brewer
Edgar North Rudisill
Harold L Wexler
Steven Anthony Wilson
Keh Buma Dema
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.)
Eastman Chemical Co
Original Assignee
Eastman Chemical Co
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 Eastman Chemical Co filed Critical Eastman Chemical Co
Publication of EP4359592A1 publication Critical patent/EP4359592A1/en
Publication of EP4359592A4 publication Critical patent/EP4359592A4/en
Pending legal-status Critical Current

Links

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
    • D01D5/04—Dry spinning methods
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/06—Wet spinning methods
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
    • 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
    • D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
    • 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
    • D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
    • D01F2/28—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate
    • 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
    • D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/20—Cellulose-derived artificial fibres
    • D10B2201/28—Cellulose esters or ethers, e.g. cellulose acetate

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Artificial Filaments (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
EP22829352.8A 2021-06-24 2022-06-24 HIGH POPULATION OF CLOSED C-SHAPED FIBERS Pending EP4359592A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202163202792P 2021-06-24 2021-06-24
PCT/US2022/034824 WO2022272013A1 (en) 2021-06-24 2022-06-24 High population of closed c-shaped fibers

Publications (2)

Publication Number Publication Date
EP4359592A1 EP4359592A1 (en) 2024-05-01
EP4359592A4 true EP4359592A4 (en) 2026-04-15

Family

ID=84544708

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22829352.8A Pending EP4359592A4 (en) 2021-06-24 2022-06-24 HIGH POPULATION OF CLOSED C-SHAPED FIBERS

Country Status (5)

Country Link
US (1) US20240254661A1 (en)
EP (1) EP4359592A4 (en)
JP (1) JP2024526587A (en)
CN (1) CN117580980A (en)
WO (1) WO2022272013A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4367302A1 (en) * 2021-07-05 2024-05-15 TreeToTextile AB Process for spinning alkaline cellulose spin dope

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5707737A (en) * 1995-05-01 1998-01-13 Teijin Limited Cellulose acetate fiber having non-circular cross section, multi-filaments thereof, and process for the production thereof
JPH11222714A (en) * 1998-02-05 1999-08-17 Mitsubishi Rayon Co Ltd Special cross-section cellulose acetate fiber, aggregate thereof, and method for producing the same
JPH11222711A (en) * 1998-02-05 1999-08-17 Mitsubishi Rayon Co Ltd Spinneret for special section cellulose acetate fiber
US20200002858A1 (en) * 2017-02-28 2020-01-02 Eastman Chemical Company Cellulose acetate fibers in nonwoven fabrics
EP3821733A1 (en) * 2018-07-13 2021-05-19 Daicel Corporation Tow band for electronic cigarette tip, electronic cigarette tip, and production method of tow band for electronic cigarette tip

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2838364A (en) * 1955-01-07 1958-06-10 Eastman Kodak Co Dry spinning process
GB880688A (en) * 1956-11-07 1961-10-25 Eastman Kodak Co Improvements in and relating to artificial filaments, fibres and yarns consisting oforganic acid esters of cellulose
JPS5831981A (en) * 1981-08-20 1983-02-24 ダイセル化学工業株式会社 Filter for tobacco smoke
CN102505164B (en) * 2011-11-10 2013-05-22 苏州龙杰特种纤维股份有限公司 Variable-diameter hollow fiber, method of producing same and fabric made of same
JP6080986B2 (en) * 2013-08-02 2017-02-15 トーレ・ケミカル・コリア・インコーポレイテッド C-type composite fiber, C-type hollow fiber thereby, fabric containing the same, and method for producing the same
JP5841671B1 (en) * 2014-03-13 2016-01-13 株式会社ダイセル Cellulose acetate tow band for cigarette filter, cigarette filter, tow band manufacturing apparatus, and tow band manufacturing method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5707737A (en) * 1995-05-01 1998-01-13 Teijin Limited Cellulose acetate fiber having non-circular cross section, multi-filaments thereof, and process for the production thereof
JPH11222714A (en) * 1998-02-05 1999-08-17 Mitsubishi Rayon Co Ltd Special cross-section cellulose acetate fiber, aggregate thereof, and method for producing the same
JPH11222711A (en) * 1998-02-05 1999-08-17 Mitsubishi Rayon Co Ltd Spinneret for special section cellulose acetate fiber
US20200002858A1 (en) * 2017-02-28 2020-01-02 Eastman Chemical Company Cellulose acetate fibers in nonwoven fabrics
EP3821733A1 (en) * 2018-07-13 2021-05-19 Daicel Corporation Tow band for electronic cigarette tip, electronic cigarette tip, and production method of tow band for electronic cigarette tip

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2022272013A1 *

Also Published As

Publication number Publication date
JP2024526587A (en) 2024-07-19
CN117580980A (en) 2024-02-20
EP4359592A1 (en) 2024-05-01
US20240254661A1 (en) 2024-08-01
WO2022272013A1 (en) 2022-12-29

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RIC1 Information provided on ipc code assigned before grant

Ipc: D01D 5/24 20060101AFI20260312BHEP

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