CA2525289A1 - A method and a fibre distributor for air-laying fibres - Google Patents

A method and a fibre distributor for air-laying fibres Download PDF

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Publication number
CA2525289A1
CA2525289A1 CA002525289A CA2525289A CA2525289A1 CA 2525289 A1 CA2525289 A1 CA 2525289A1 CA 002525289 A CA002525289 A CA 002525289A CA 2525289 A CA2525289 A CA 2525289A CA 2525289 A1 CA2525289 A1 CA 2525289A1
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CA
Canada
Prior art keywords
fibres
wings
nits
air
sec
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.)
Granted
Application number
CA002525289A
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French (fr)
Other versions
CA2525289C (en
Inventor
Jens Ole Brochner Andersen
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.)
M&J Fibretech AS
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Individual
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 Individual filed Critical Individual
Publication of CA2525289A1 publication Critical patent/CA2525289A1/en
Application granted granted Critical
Publication of CA2525289C publication Critical patent/CA2525289C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/732—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay
    • 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
    • D04H1/425—Cellulose series
    • 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
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

A fibre distributor is used for air-laying fibres (4;6) on an endless, air pervious forming wire (9) in a plant for producing non-woven webs. The fibre distributor comprises a forming head (2) with a perforated bottom (7) and ro ws (14) of rotateable wings (15) situated at a distance above the bottom (7) fo r during production sweeping supplied fibres (4;6) along the rows (14) of wing s (15) in an air stream before they successively leave the forming head (2) through the openings (8) of the perforated bottom (7) for being deposited in a layer (16) on the upper part (17) of the forming wire (2). The fibres (4;6) are, while being swept along in this way, inclined to form nits (20;21). The wings (15) are therefore adapted to rotate with an optimal speed of rotation in an interval where the fibre's (4;6) inclination to form nits (20;21) changes from being lesser to being larger when the rotation speed of the win gs (15) grows. By means of the method and the fibre distributor according to th e invention it is possible to produce non-woven webs with a minimum of fibre loss in form of nits and at the same time also with an extremely high rate o f production.

Claims (12)

1. A method for air-laying fibres (4;6) on an endless, air pervious forming wire (9) comprising the steps of, - supplying fibres (4;6) to a forming head (2) having a perforated bottom (7) and at least one row (14) of rotateable wings (15) situated at a distance above the bottom (7), - sweeping the fibres (4;6) along the at least one row (14) of wings (15) in a first air stream by rotating the wings (15), during which the fibres (4;6) are inclined to form nits (20;21), - regulating the speed of rotation of the wings (15) into an interval around an optimal speed where the fibre's (4;6) inclination to form nits (20;21) changes from being lesser to being larger when the rotation speed of the wings (15) grows, and - successively depositing the fibres (4;6) into a layer (16) on the upper part (17) of the forming wire (9) by sucking the fibres (4;6) down through the openings (8) in the perforated bottom (7) in a second air stream.
2. The method of claim 1, comprising the step of regulating the rotation speeds of the wings (15) in agreement with the composition of the fibres (4;6).
3. The method of claim 1 or 2 comprising the step of choosing an interval of speeds of rotation of the wings (15) around an average optimal rotation speed where the number of nits (20;21) are small or smallest, having a size between 0.5,- 1.5, preferentially between 0.75 -1,25 and especially between 0.9 - 1.1 times said optimal rotation speed of the wings (15).
4. The method of claim 1, comprising the steps of, - detecting the percentage of nits (20;21) in the fibre layer (16) on the forming wire (9) or in the resulting non-woven web (18), - sending signals representing the results of the detecting as input to a computer (23), - using this input to calculate, by means of a program of the computer (23), a value which represents an optimal rotation speed where the number of nits (20;21) at a given moment is small or smallest, and - sending signals representing this value as output from the computer (23) to order the wings (15) to rotate with rotating speeds represented by said value.
5. A method for air-laying fibres (4;6) on an endless, air pervious forming wire (9) comprising the steps of, - supplying fibres (4;6) to a forming head (2) having a perforated bottom (7) and at least one row (14) of rotateable wings (15) situated at a distance above the bottom (7), - rotating the wings with such an rotation speed that the fibres are swept along the bottom with a velocity between m/sec and 26 m/sec, preferentially between 8 m/sec and 17 m/sec and especially between 10 m/sec and 15 m/sec, and - successively depositing the fibres (4;6) into a layer (16) on the upper part (17) of the forming wire (9) by sucking the f fibres ( 4 ; 6 ) down through the openings ( 8 ) in the perforated bottom (7) in a second air stream.
6. A method for air-laying fibres (4;6) on an endless, air pervious forming wire (9) comprising the steps of, - supplying fibres (4;6) to a forming head (2) having a perforated bottom (7) and at least one row (14) of rotateable wings (15) situated at a distance above the bottom (7), - rotating the wings with such an rotation speed that the fibres are swept along the bottom with a velocity of between 9 m/sec and 16 m/sec, especially between 11 m/sec and 14 m/sec and - successively depositing the fibres (4;6) into a layer (16) on the upper part (17) of the forming wire (9) by sucking the fibres (4;6) down through the openings (8) in the perforated bottom (7) in a second air stream.
7. A fibre distributor of the kind used for air-laying fibres (4;6) on an endless, air pervious forming wire (9) in a plant for producing non-woven webs (18), comprising a forming head (2) with a perforated bottom (7) and at least one row (14) of rotateable wings (15) situated at a distance above the bottom (7) for during production sweeping supplied fibres (4;6) along the at least one row (14) of wings (15) in an air stream before they successively leave the forming head (2) through the openings (8) of the perforated bottom (7) for being deposited in a layer (16) on the upper part (17) of the forming wire (2), whereby the fibres (4;6) while being swept in this way are inclined to form nits (20;21) and the wings (15) are rotated with an optimal speed of rotation in an interval where the fibres' (4;6) inclination to form nits (20;21) changes from being lesser to being larger when the rotation speed of the wings (15) grows.
8. The fibre distributor of claim 7, comprising a regulator for regulating the optimal speed of rotation in agreement with the composition of the fibres (4;6) and the arrangement of the actual fibre distributor.
9. The fibre distributor of claim 8, comprising that the regulator is adapted for regulating the optimal speed of rotation into an interval around an average optimal rotation speed where the number of nits (20;21) is small or smallest, whereby the interval has a size between 0.5 and 1.5, preferentially between 0.75 and 1,25 and especially between 0.9 and 1.1 times said optimal rotation speed of the wings.
10. The fibre distributor of claim 7, comprising - a detector (22) for detecting the percentage of nits (20;21) in the fibre layer (16) on the forming wire (9) or in the resulting non-woven web (18) and sending signals representing the results of this detecting as input to a computer (23), - a program of the computer (23) for by means of said input, calculating a value, which represents an optimal rotation speed where the number of nits (20;21) is small or smallest and generating output representing said value, and - one or more actuators (24,25,26,27,28,29) for, by receiving said output, rotating the wings (15) with rotation speeds represented by such values.
11. The fibre distributor of claim 7 - 10, comprising that the mutual distance between each of two neighbouring rows (14) of wings (15) is the mutual distance between two wings (15) in a row plus between 50 mm and 135 mm, especially between 75 mm and 105 mm.
12. The fibre distributor of claim 7 - 11, comprising that the distance between the wings and the perforated bottom is between 1 mm and 12 mm, preferentially between 2 mm and 7 mm and especially between 3 mm and 5 mm.
CA2525289A 2003-05-28 2004-05-27 A method and a fibre distributor for air-laying fibres Expired - Fee Related CA2525289C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DKPA200300805 2003-05-28
DKPA200300805 2003-05-28
PCT/DK2004/000370 WO2004106604A1 (en) 2003-05-28 2004-05-27 A method and a fibre distributor for air-laying fibres

Publications (2)

Publication Number Publication Date
CA2525289A1 true CA2525289A1 (en) 2004-12-09
CA2525289C CA2525289C (en) 2011-11-15

Family

ID=33483735

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2525289A Expired - Fee Related CA2525289C (en) 2003-05-28 2004-05-27 A method and a fibre distributor for air-laying fibres

Country Status (10)

Country Link
US (1) US20060055072A1 (en)
EP (1) EP1633912B1 (en)
JP (1) JP2006529006A (en)
CN (1) CN1795296B (en)
BR (1) BRPI0410699A (en)
CA (1) CA2525289C (en)
DK (1) DK1633912T3 (en)
MX (1) MXPA05012869A (en)
PL (1) PL1633912T3 (en)
WO (1) WO2004106604A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
UA76461C2 (en) * 2001-05-24 2006-08-15 Lilly Co Eli Pyrrazole derivatives as pharmaceutical agents, use thereof, a pharmaceutical composition on their basis
US20100092746A1 (en) * 2008-10-14 2010-04-15 Jean-Marie Coant Nonwoven material containing benefiting particles and method of making
DE102010035944A1 (en) 2010-08-31 2012-03-01 Oerlikon Textile Gmbh & Co. Kg Method and apparatus for dry forming a fibrous web
DE102010052010A1 (en) * 2010-11-19 2012-05-24 Oerlikon Textile Gmbh & Co. Kg Apparatus for dry forming a fibrous web
DE102012111815A1 (en) * 2011-12-22 2013-06-27 Oerlikon Textile Gmbh & Co. Kg Device useful for dry molding a fiber web, comprises molding head, which has fiber outlet having a molding wire which is arranged above a storage tape and comprises a number of clamping plates connected by rigid holding device

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK144382C (en) * 1977-11-08 1982-07-26 Kroyer K K K Apparatus for the preparation of a web-shaped fiber product
JPS56101962A (en) * 1979-12-21 1981-08-14 Kimberly Clark Co Method and apparatus for producing dry web with high properties and uniformity by air laying system
US4335066A (en) * 1979-12-21 1982-06-15 Kimberly-Clark Corporation Method of forming a fibrous web with high fiber throughput screening
US4375448A (en) * 1979-12-21 1983-03-01 Kimberly-Clark Corporation Method of forming a web of air-laid dry fibers
DK162845C (en) * 1989-09-28 1992-05-04 Karl Kroeyer PLANT FOR THE MANUFACTURING OF A CURRENT FIBER PRODUCT
US5383135A (en) * 1992-12-31 1995-01-17 Zellweger Uster, Inc. Acquisition, measurement and control of thin webs on in-process textile materials
DK168670B1 (en) * 1993-03-09 1994-05-16 Niro Separation As Apparatus for distributing fibers
DK169356B1 (en) * 1993-03-19 1994-10-10 Kroyer K K K Apparatus for preparing a web-shaped fiber product by the dry method
IL108743A (en) * 1994-02-22 1998-02-22 Mor Uzi System and method for detection of cotton stickiness and neps and other lint qualities in real time and removal of sticky deposits from processed cotton in the gin
WO1996010663A1 (en) * 1994-09-30 1996-04-11 M & J Fibretech A/S A plant and a process for dry-producing a web-formed product
DK172432B1 (en) * 1997-12-23 1998-06-15 Carsten Andersen Former box for apparatus for dry forming a fibrous tissue.
WO1999054537A1 (en) * 1998-04-21 1999-10-28 M&J Fibretech A/S Sifting net for a fibre distributor
US7134859B1 (en) * 1998-07-14 2006-11-14 M&J Fibretech A/S Nits separator
DE60102301T2 (en) * 2000-05-31 2004-07-29 M & J Fibretech A/S DEVICE AND METHOD FOR DRY MANUFACTURING A FIBER FLEECE MATERIAL FROM SHORT AND LONG FIBERS, COTTON FIBER MATERIAL FROM COTTON FABRIC
EP1167590A3 (en) * 2000-06-23 2002-09-11 Maschinenfabrik Rieter Ag Fibre length measuring
EP1215312A1 (en) * 2000-12-18 2002-06-19 Maschinenfabrik Rieter Ag Online measurement techniques
DE10107282A1 (en) * 2001-02-16 2002-08-22 Truetzschler Gmbh & Co Kg Device on a card for recording light fiber waste such as short fibers, dust, fiber fragments, flight and the like.

Also Published As

Publication number Publication date
EP1633912A1 (en) 2006-03-15
BRPI0410699A (en) 2006-06-20
CN1795296A (en) 2006-06-28
WO2004106604A1 (en) 2004-12-09
PL1633912T3 (en) 2014-11-28
MXPA05012869A (en) 2006-02-22
US20060055072A1 (en) 2006-03-16
CN1795296B (en) 2010-09-08
CA2525289C (en) 2011-11-15
EP1633912B1 (en) 2014-07-16
DK1633912T3 (en) 2014-10-06
JP2006529006A (en) 2006-12-28

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Effective date: 20170529