WO2011091251A8 - Meltblown fiber spinning die - Google Patents

Meltblown fiber spinning die Download PDF

Info

Publication number
WO2011091251A8
WO2011091251A8 PCT/US2011/022058 US2011022058W WO2011091251A8 WO 2011091251 A8 WO2011091251 A8 WO 2011091251A8 US 2011022058 W US2011022058 W US 2011022058W WO 2011091251 A8 WO2011091251 A8 WO 2011091251A8
Authority
WO
WIPO (PCT)
Prior art keywords
capillaries
spin block
inlet
flow channel
discharge
Prior art date
Application number
PCT/US2011/022058
Other languages
French (fr)
Other versions
WO2011091251A3 (en
WO2011091251A2 (en
Inventor
Jay Darrell Gillespie
Marc Steven Newman
Original Assignee
Fiberweb, 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
Application filed by Fiberweb, Inc. filed Critical Fiberweb, Inc.
Publication of WO2011091251A2 publication Critical patent/WO2011091251A2/en
Publication of WO2011091251A3 publication Critical patent/WO2011091251A3/en
Publication of WO2011091251A8 publication Critical patent/WO2011091251A8/en

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
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/02—Spinnerettes
    • D01D4/025—Melt-blowing or solution-blowing dies

Landscapes

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

Abstract

The invention provides a device that can be used to produce meltblown nanofibers. The meltblown fiber spinning device comprises: a spin block having an inlet side; an outlet side opposite the inlet side; a discharge surface disposed at the outlet side of the spin block; a flow channel formed at the inlet side of the spin block for receiving molten polymer from a polymer source; an inlet surface formed in the flow channel towards the outlet side of the spin block; and a plurality of spaced apart capillaries formed in the inlet surface of the spin block, the capillaries having an inlet end in fluid communication with the flow channel and a discharge end at the discharge surface of the spin block, wherein the capillaries have a diameter (D) in the range of from 2-10 mils and a length (L), wherein the L/D ratio is at least 1 and less than 20, and wherein the number of capillaries is in the range of from 20-200 capillaries per inch. Molten polymer introduced into the flow channel flows into the capillaries and is then extruded from the discharge ends of the capillaries as strands of fine filaments.
PCT/US2011/022058 2010-01-22 2011-01-21 Meltblown fiber spinning die WO2011091251A2 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US29748910P 2010-01-22 2010-01-22
US61/297,489 2010-01-22
US41167410P 2010-11-09 2010-11-09
US61/411,674 2010-11-09
US201161431641P 2011-01-11 2011-01-11
US61/431,641 2011-01-11

Publications (3)

Publication Number Publication Date
WO2011091251A2 WO2011091251A2 (en) 2011-07-28
WO2011091251A3 WO2011091251A3 (en) 2011-09-15
WO2011091251A8 true WO2011091251A8 (en) 2011-11-03

Family

ID=44356212

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2011/022058 WO2011091251A2 (en) 2010-01-22 2011-01-21 Meltblown fiber spinning die

Country Status (1)

Country Link
WO (1) WO2011091251A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108342837A (en) * 2018-02-05 2018-07-31 浙江省纺织测试研究院 The preparation method of super oil suction polypropylene melt blown non-woven fabric
EP3953169B1 (en) * 2019-04-12 2023-12-20 Ascend Performance Materials Operations LLC Nonwoven multilayer structures having nanofiber layers

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3825380A (en) 1972-07-07 1974-07-23 Exxon Research Engineering Co Melt-blowing die for producing nonwoven mats
JPH0491267A (en) * 1990-08-02 1992-03-24 Toyobo Co Ltd Nonwoven fabric made of ultrafine fiber
WO1995006765A1 (en) * 1993-09-03 1995-03-09 Polymer Processing Research Inst., Ltd. Method of manufacturing filament and filament assembly of thermotropic liquid crystal polymer
JP3360377B2 (en) * 1993-10-04 2002-12-24 チッソ株式会社 Melt blow spinneret
KR100549140B1 (en) * 2002-03-26 2006-02-03 이 아이 듀폰 디 네모아 앤드 캄파니 A electro-blown spinning process of preparing for the nanofiber web
US7501085B2 (en) * 2004-10-19 2009-03-10 Aktiengesellschaft Adolph Saurer Meltblown nonwoven webs including nanofibers and apparatus and method for forming such meltblown nonwoven webs
WO2007121458A2 (en) * 2006-04-18 2007-10-25 Hills, Inc. Method and apparatus for production of meltblown nanofibers
US10041188B2 (en) 2006-04-18 2018-08-07 Hills, Inc. Method and apparatus for production of meltblown nanofibers
US7662534B2 (en) * 2006-09-11 2010-02-16 Ricoh Company Ltd. Apparatus for producing toner precursor, and method for the same, fibrous toner precursor, apparatus for producing toner, and method for producing electrophotographic toner and fine resin particles
US20080070463A1 (en) * 2006-09-20 2008-03-20 Pankaj Arora Nanowebs

Also Published As

Publication number Publication date
WO2011091251A3 (en) 2011-09-15
WO2011091251A2 (en) 2011-07-28

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