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US3566451A - Process for widening and loosening continuous artificial fiber - Google Patents

Process for widening and loosening continuous artificial fiber Download PDF

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Publication number
US3566451A
US3566451A US794442*A US3566451DA US3566451A US 3566451 A US3566451 A US 3566451A US 3566451D A US3566451D A US 3566451DA US 3566451 A US3566451 A US 3566451A
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United States
Prior art keywords
nozzles
loosening
fiber
strand
gas
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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.)
Expired - Lifetime
Application number
US794442*A
Inventor
Hans Weigand
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.)
Deutsche Rhodiaceta AG
Rhodiaceta AG
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Rhodiaceta AG
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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/18—Separating or spreading
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming

Definitions

  • the invention relates to a process for widening out and loosening up an endless or continuous running fiber strand, for example a strand of cellulose accetate. Fiber strands of this kind are employed as cigarette filters for tobacco smoke.
  • these strands possess a more or less intensive crimping whereby the individual fibers of the strand stick together so that the strand possesses only a slight volume. This condition is desired particularly for shipment because it permits the accommodation of a high weight in a given small volume.
  • filter rod machines which possess a bandlike structureon special so-called filter rod machines into filter rods for tobacco smoke.
  • These filter rods are substantially longer than the length of the customary cigarette filter and are later cut into the filters of the desired length on known machine, in order thereafter to be combined with the tobacco portion of a filter cigarette.
  • the supplied, still closed and compact filter strand is broadened out and loosened up to such an extent that the stuck together fibers are completely loosened from each other and thereby are prepared for uniform reception of the softener.
  • the part of the apparatus for this portion of the manufacture customarily consists of a system of pairs of rolls in front of which and, if desired, between which there are arranged blower nozzles. While the pairs of rollers have the function of loosening the stuck together fibers by means of mechanical pressure, the loosening up of the fibers with the aid of the blower nozzles is accomplished by means of a more or less undirected gas stream.
  • Nozzles of this kind for example, consist of a plate having long slits that extend at right angles to the direction of movement of the strand. This plate rests as ili closure upon the wide end of funnel-shaped air supply nes.
  • Nozzles of this kind have certain disadvantages. For example, a stronger gas stream occurs in the central por- 'ice tion of the nozzle, whereas the edge portions have a weaker gas stream. This has the result that the strand which is conducted along these nozzles tends to become thin in the central portion, whereas accumulations of fibers are formed at the edge portions thereby having a detrimental influence upon the loosening up of the strand and upon the quality of the resultant filter rods.
  • the subject of the present invention is a process for a more uniform distribution of the individual fibers.
  • a plate which incorporates a system of nozzle holes arranged in rows, whereby the nozzle holes are so arranged that from row to row alternately the air stream blows in the direction of the righthand and lefthand limits of the plate, namely outwardly and toward the center, respectively.
  • the minimum requirement is that there be at least two rows of hole nozzles. However, their number may be increased as desired. The greater the number of rows of hole nozzles, the greater is the loosening up effect. However, after a certain number of rows of hole nozzles, the loosening up is so good that increasing the number of the nozzle rows adds practically no advantage and therefore is economically useless.
  • the diameter of such hole nozzles preferably varies between about 0.2-2.0 mm.
  • the nozzles are preferably bored cylindrically.
  • conical nozzles may also be employed. Their distance from each other may vary between about 1 and 10 mm. Determinative for these measurements is the characteristic of the strand that is to be worked up, particularly its thickness and its degree of crimping.
  • borings may end directly on the nozzle plate, i.e. in the plane on which the cable runs. It is, however, also possible to arrange them recessed in a groove whereby the depth of this groove may amount approximately between 0.1-2.0 mm.
  • FIG. 1 is section view through FIG. 2 along the line 11;
  • FIG. 2 is cross-sectional view in elevation of an apparatus according to this invention.
  • FIG. 3 is a schematic and diagrammatic view of an arrangement employing the apparatus of FIGS. 1-2.
  • the blower nozzle 14 consists of an outwardly widening funnel 1 whose opening rests upon a gas exit plate 2 and is attached thereto by means of screws 3.
  • this plate 2 are provided rows of holes 4. The holes are so arranged that one row will blow the introduced compressed gas away from the center (centrifugal), whereas the succeeding row will blow the gas in the opposite direction against the middle (centripetal) as shown in FIG. 1.
  • the stem of the funnel 5 is connected to the supply line 20 for the compressed gas. Through this supply line 20 there is conducted air or some other readily expandable gas under pressure into the funnel 1.
  • the strand of fiber now runs between the gas exit plate 2 provided with the holes and a cover plate 6.
  • This cover plate 6 is movably attached at one side to the gas exit plate 2 by means of two hinges 7 and are closeable at the opposite side by means of a bolt 8.
  • the bolt 8 is locked by means of a toggle 9.
  • the movable cover plate 6 serves inter alia to simplify the introduction of the fiber strand.
  • a recessed portion 10 is cut out through which the fiber strand runs.
  • the holes 4 of the gas exit plate all open into this recessed portion. The gas coming out of the nozzles escapes from this recessed portion in both directions (upwardly and downwardly in FIG. 2).
  • FIG. 3 shows how a strand of fiber 11 is pulled off from a ball or source of strand 12 in the direction of the arrow.
  • the fiber strand runs over a direction reversing device 13.
  • the blower nozzle 14 (consisting of elements 1-10).
  • the fiber strand 11 now runs at constant speed through the chamber (recessed portion) 10 of the blower nozzle, whereby air or some other gas under pressure is introduced into the funnel 1 and through the holes 4.
  • the strand of fiber is loosened up and broadened out in this operation.
  • the loosened up and broadened out fiber strand runs over the reverse direction roller 13 and between two pairs of rollers 15 and 16 into a spray chamber 17.
  • this spray chamber 17 there is sprayed on to the fiber strand a softener by means of two opposed spray nozzles 18.
  • the fiber strand which has been moistened (wetted) with the softener is now worked up into filter rods.
  • a process for broadening and loosening continuous fiber characterized in passing the fiber through successive blasts of gas which alternate in the direction in which the gas is directed onto the fiber, with one blast of gas being directed from the sides toward the center of the fiber and the successive blast being directed from the center toward the sides of the fiber.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

CONTINUOUS ARTIFICIAL FIBER STRANDS ARE WIDENED AND LOOSENED BY MEANS OF A SINGLE OR MULTIPLE PASSES THROUGH AN APPARATUS HAVING A PLURALITY OF ROWS OF NOZZLES. GAS IS BLOWN THROUGH ONE ROW OF NOZZLES AWAY FROM THE CENTER. AND IS BLOWN THROUGH THE ADJACENT ROW OF NOZZLES TOWARD THE CENTER OF THE APLPARATUS.

Description

March 2, 1971 WEIGAND 3,566,451
PROCESS-FOR WIDENING AND LOOSENING CONT'INUOUS ARTIFICIAL FIBER Original Filed March 1, 1967 2 Sheets-Sheeti FIG.|
ky V 2 G v 4 jo Mmh 97 7 HWEIGAND 3.566.4 1
PROCESS FOR WIDENING AND LOOSENING CONTINUOUS ARTIFICIAL FIBER Original Filed March 1, 1967 I 2 Shets-Sheet 2 United States Patent Int. (:1. D01b 3/10 US. C]. 19-66 2 Claims ABSTRACT OF THE DISCLOSURE Continuous artificial fiber strands are widened and loosened by means of a single or multiple passes through an apparatus having a plurality of rows of nozzles. Gas is blown through one row of nozzles away from the center, and is blown through the adjacent row of nozzles toward the center of the apparatus.
This application is a division of copending application Ser. No. 619,774, filed Mar. 1, 1967, now US. Pat. 3,- 444,592.
BACKGROUND OF THE INVENTION The invention relates to a process for widening out and loosening up an endless or continuous running fiber strand, for example a strand of cellulose accetate. Fiber strands of this kind are employed as cigarette filters for tobacco smoke.
It is known to produce cigarette filters from strands of cellulose acetate which consists of about 10,000 to 20,000 endless fibers, and whose total titer is preferably between about 35,000 and 90,000 denier.
As a rule these strands possess a more or less intensive crimping whereby the individual fibers of the strand stick together so that the strand possesses only a slight volume. This condition is desired particularly for shipment because it permits the accommodation of a high weight in a given small volume.
It is further known to work up such filter strandswhich possess a bandlike structureon special so-called filter rod machines into filter rods for tobacco smoke. These filter rods are substantially longer than the length of the customary cigarette filter and are later cut into the filters of the desired length on known machine, in order thereafter to be combined with the tobacco portion of a filter cigarette.
In the filter rod machine the supplied, still closed and compact filter strand is broadened out and loosened up to such an extent that the stuck together fibers are completely loosened from each other and thereby are prepared for uniform reception of the softener.
The part of the apparatus for this portion of the manufacture customarily consists of a system of pairs of rolls in front of which and, if desired, between which there are arranged blower nozzles. While the pairs of rollers have the function of loosening the stuck together fibers by means of mechanical pressure, the loosening up of the fibers with the aid of the blower nozzles is accomplished by means of a more or less undirected gas stream. Nozzles of this kind, for example, consist of a plate having long slits that extend at right angles to the direction of movement of the strand. This plate rests as ili closure upon the wide end of funnel-shaped air supply nes.
Nozzles of this kind have certain disadvantages. For example, a stronger gas stream occurs in the central por- 'ice tion of the nozzle, whereas the edge portions have a weaker gas stream. This has the result that the strand which is conducted along these nozzles tends to become thin in the central portion, whereas accumulations of fibers are formed at the edge portions thereby having a detrimental influence upon the loosening up of the strand and upon the quality of the resultant filter rods.
SUMMARY OF THE INVENTION The subject of the present invention is a process for a more uniform distribution of the individual fibers. In accordance with this invention, instead of the slitted plate, a plate which incorporates a system of nozzle holes arranged in rows, whereby the nozzle holes are so arranged that from row to row alternately the air stream blows in the direction of the righthand and lefthand limits of the plate, namely outwardly and toward the center, respectively.
This is accomplished by boring the nozzle holes slantingly or at an angle whereby it is of particular advantage to alternate the distribution of the angle in such a manner that the angle of incidence of the outermost nozzle holes varies most strongly from the vertical. The minimum requirement is that there be at least two rows of hole nozzles. However, their number may be increased as desired. The greater the number of rows of hole nozzles, the greater is the loosening up effect. However, after a certain number of rows of hole nozzles, the loosening up is so good that increasing the number of the nozzle rows adds practically no advantage and therefore is economically useless. The diameter of such hole nozzles preferably varies between about 0.2-2.0 mm. The nozzles are preferably bored cylindrically. Yet, when special effects are desired, conical nozzles may also be employed. Their distance from each other may vary between about 1 and 10 mm. Determinative for these measurements is the characteristic of the strand that is to be worked up, particularly its thickness and its degree of crimping.
The above mentioned borings may end directly on the nozzle plate, i.e. in the plane on which the cable runs. It is, however, also possible to arrange them recessed in a groove whereby the depth of this groove may amount approximately between 0.1-2.0 mm.
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is section view through FIG. 2 along the line 11;
FIG. 2 is cross-sectional view in elevation of an apparatus according to this invention; and
FIG. 3 is a schematic and diagrammatic view of an arrangement employing the apparatus of FIGS. 1-2.
DETAILED DESCRIPTION In FIGS. 1 and 2 the blower nozzle 14 consists of an outwardly widening funnel 1 whose opening rests upon a gas exit plate 2 and is attached thereto by means of screws 3. In this plate 2 are provided rows of holes 4. The holes are so arranged that one row will blow the introduced compressed gas away from the center (centrifugal), whereas the succeeding row will blow the gas in the opposite direction against the middle (centripetal) as shown in FIG. 1. The stem of the funnel 5 is connected to the supply line 20 for the compressed gas. Through this supply line 20 there is conducted air or some other readily expandable gas under pressure into the funnel 1.
The strand of fiber now runs between the gas exit plate 2 provided with the holes and a cover plate 6. This cover plate 6 is movably attached at one side to the gas exit plate 2 by means of two hinges 7 and are closeable at the opposite side by means of a bolt 8. The bolt 8 is locked by means of a toggle 9.
The movable cover plate 6 serves inter alia to simplify the introduction of the fiber strand.
Into the gas exit plate 2 and the cover plate 6 a recessed portion 10 is cut out through which the fiber strand runs. The holes 4 of the gas exit plate all open into this recessed portion. The gas coming out of the nozzles escapes from this recessed portion in both directions (upwardly and downwardly in FIG. 2).
FIG. 3 shows how a strand of fiber 11 is pulled off from a ball or source of strand 12 in the direction of the arrow. The fiber strand runs over a direction reversing device 13. Between the supply container 12 and the direction reversing device 13 there is arranged the blower nozzle 14 (consisting of elements 1-10). The fiber strand 11 now runs at constant speed through the chamber (recessed portion) 10 of the blower nozzle, whereby air or some other gas under pressure is introduced into the funnel 1 and through the holes 4. The strand of fiber is loosened up and broadened out in this operation. The loosened up and broadened out fiber strand runs over the reverse direction roller 13 and between two pairs of rollers 15 and 16 into a spray chamber 17. In this spray chamber 17 there is sprayed on to the fiber strand a softener by means of two opposed spray nozzles 18. The fiber strand which has been moistened (wetted) with the softener is now worked up into filter rods.
What is claimed is:
1. A process for broadening and loosening continuous fiber characterized in passing the fiber through successive blasts of gas which alternate in the direction in which the gas is directed onto the fiber, with one blast of gas being directed from the sides toward the center of the fiber and the successive blast being directed from the center toward the sides of the fiber.
2. A process as set forth in claim 1 wherein the alternate blasts of gas emanate from a single device.
References Cited UNITED STATES PATENTS DORSEY NEWTON, Primary Examiner
US794442*A 1966-03-02 1968-10-30 Process for widening and loosening continuous artificial fiber Expired - Lifetime US3566451A (en)

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AT (1) AT292174B (en)
BE (1) BE694628A (en)
CH (1) CH451395A (en)
DE (1) DE1660266C3 (en)
ES (1) ES337459A1 (en)
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Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4132189A (en) * 1971-06-02 1979-01-02 Hauni-Werke Korber & Co. Kg. Apparatus for applying plasticizer to fibrous filter material in filter rod making machines
US4237815A (en) * 1978-07-12 1980-12-09 National Steel Corporation Apparatus for liquid coating thickness control and removing excess liquid coating from web edges
US4347805A (en) * 1976-05-12 1982-09-07 National Steel Corporation Apparatus for liquid coating thickness control
EP0941673A1 (en) * 1998-03-13 1999-09-15 Hauni Maschinenbau AG Method and apparatus for the manufacturing of rod filter for rod-shaped article in the tobacco industry
EP0654224A3 (en) * 1993-11-24 1999-10-27 Hauni Maschinenbau Aktiengesellschaft Device for treating a strip of filter material
US20030172506A1 (en) * 2001-06-29 2003-09-18 Jean-Michel Guirman Method and device for producing a textile web by spreading tows
CN100385054C (en) * 2006-02-22 2008-04-30 湖南大学 Continuous Carbon Fiber Ribbon Carding Method
US20080182099A1 (en) * 2006-11-17 2008-07-31 Jennifer Hoyt Lalli Robust electrodes for shape memory films
US20080206550A1 (en) * 2007-02-26 2008-08-28 Michael Jeremiah Borlner Hydrophobic surface
US20080213570A1 (en) * 2007-02-16 2008-09-04 Jennifer Hoyt Lalli Self-assembled conductive deformable films
US20080245413A1 (en) * 2007-04-04 2008-10-09 Hang Ruan Self assembled photovoltaic devices
US20080261044A1 (en) * 2003-02-10 2008-10-23 Jennifer Hoyt Lalli Rapidly self-assembled thin films and functional decals
US20090035513A1 (en) * 2007-03-28 2009-02-05 Michael Jeremiah Bortner Tethered nanorods
US20090087348A1 (en) * 2007-02-16 2009-04-02 Richard Otto Claus Sensor applications
US20090104434A1 (en) * 2007-10-17 2009-04-23 Jennifer Hoyt Lalli Conformal multifunctional coatings
US20090104438A1 (en) * 2007-10-17 2009-04-23 Jennifer Hoyt Lalli Abrasion resistant coatings
US20090136574A1 (en) * 2006-04-19 2009-05-28 Galderma S.A. Compositions comprising at least one aqueous phase and at least one fatty phase which comprises avermectin compounds
US9067328B2 (en) 2012-12-29 2015-06-30 Unicharm Corporation Cutting device and method of production of cleaning member using cutting device
CN104770873A (en) * 2014-01-13 2015-07-15 豪尼机械制造股份公司 Channel housing for a separator nozzle for spreading tow which can be used in the production of cigarette filters and method for the spreading of tow
US9185969B2 (en) 2012-12-29 2015-11-17 Unicharm Corporation Method of producing opened fiber bundle, method of producing cleaning member, apparatus which opens fiber bundle, and system which produces cleaning member
US9206534B2 (en) * 2012-12-29 2015-12-08 Unicharm Corporation Method of producing opened fiber bundle, method of producing cleaning member, apparatus which opens fiber bundle, and system which produces cleaning member
US9212011B2 (en) 2013-01-10 2015-12-15 Unicharm Corporation Stacking device and method of production of web member
US9279199B2 (en) 2012-12-29 2016-03-08 Unicharm Corporation Method and apparatus for manufacturing cleaning member
US9393722B2 (en) 2013-01-10 2016-07-19 Unicharm Corporation Method of production of web member including tow
US9757882B2 (en) 2012-12-29 2017-09-12 Unicharm Corporation Method of producing opened fiber bundle, and method of producing cleaning member, apparatus which opens fiber bundle, and system which produces cleaning member
US9919501B2 (en) 2012-12-29 2018-03-20 Unicharm Corporation Manufacturing method and manufacturing system for cleaning member
US10098516B2 (en) 2012-12-29 2018-10-16 Unicharm Corporation Method for producing cleaning member, and system for producing cleaning member
US10638908B2 (en) 2012-12-29 2020-05-05 Unicharm Corporation Method and system for manufacturing cleaning member

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3535745A (en) * 1967-09-18 1970-10-27 Eastman Kodak Co Method and apparatus for opening multifilament tows
US3688355A (en) * 1969-05-13 1972-09-05 Kuraray Co Method and apparatus for preparing non-woven fibrous materials
JPS6452837A (en) * 1987-05-18 1989-02-28 Sumitomo Chemical Co Method for opening fiber

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2737688A (en) * 1953-05-25 1956-03-13 Eastman Kodak Co Tow opening device
US2908045A (en) * 1955-10-20 1959-10-13 Eastman Kodak Co Method for removing false twist and longitudinal folds from continuous filament crimped tow

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4317425A (en) * 1971-06-02 1982-03-02 Hauni-Werke Korber & Co. Kg Apparatus for applying plasticizer to fibrous filter material in filter rod making machines
US4132189A (en) * 1971-06-02 1979-01-02 Hauni-Werke Korber & Co. Kg. Apparatus for applying plasticizer to fibrous filter material in filter rod making machines
US4347805A (en) * 1976-05-12 1982-09-07 National Steel Corporation Apparatus for liquid coating thickness control
US4237815A (en) * 1978-07-12 1980-12-09 National Steel Corporation Apparatus for liquid coating thickness control and removing excess liquid coating from web edges
EP0654224A3 (en) * 1993-11-24 1999-10-27 Hauni Maschinenbau Aktiengesellschaft Device for treating a strip of filter material
US6263882B1 (en) 1998-03-13 2001-07-24 Hauni Maschinenbau Ag Method of and apparatus for making filter mouthpieces for rod-shaped articles of the tobacco processing industry
EP0941673A1 (en) * 1998-03-13 1999-09-15 Hauni Maschinenbau AG Method and apparatus for the manufacturing of rod filter for rod-shaped article in the tobacco industry
US20030172506A1 (en) * 2001-06-29 2003-09-18 Jean-Michel Guirman Method and device for producing a textile web by spreading tows
US6836939B2 (en) * 2001-06-29 2005-01-04 Snecma Propulsion Solide Method and device for producing a textile web by spreading tows
US20080261044A1 (en) * 2003-02-10 2008-10-23 Jennifer Hoyt Lalli Rapidly self-assembled thin films and functional decals
CN100385054C (en) * 2006-02-22 2008-04-30 湖南大学 Continuous Carbon Fiber Ribbon Carding Method
US20090136574A1 (en) * 2006-04-19 2009-05-28 Galderma S.A. Compositions comprising at least one aqueous phase and at least one fatty phase which comprises avermectin compounds
US20080182099A1 (en) * 2006-11-17 2008-07-31 Jennifer Hoyt Lalli Robust electrodes for shape memory films
US20100012267A1 (en) * 2006-11-17 2010-01-21 Jennifer Hoyt Lalli Robust electrodes for shape memory films
US20090087348A1 (en) * 2007-02-16 2009-04-02 Richard Otto Claus Sensor applications
US20080213570A1 (en) * 2007-02-16 2008-09-04 Jennifer Hoyt Lalli Self-assembled conductive deformable films
US20080206550A1 (en) * 2007-02-26 2008-08-28 Michael Jeremiah Borlner Hydrophobic surface
US20090035513A1 (en) * 2007-03-28 2009-02-05 Michael Jeremiah Bortner Tethered nanorods
US20080245413A1 (en) * 2007-04-04 2008-10-09 Hang Ruan Self assembled photovoltaic devices
US20090104434A1 (en) * 2007-10-17 2009-04-23 Jennifer Hoyt Lalli Conformal multifunctional coatings
US20090104438A1 (en) * 2007-10-17 2009-04-23 Jennifer Hoyt Lalli Abrasion resistant coatings
US9279199B2 (en) 2012-12-29 2016-03-08 Unicharm Corporation Method and apparatus for manufacturing cleaning member
US9185969B2 (en) 2012-12-29 2015-11-17 Unicharm Corporation Method of producing opened fiber bundle, method of producing cleaning member, apparatus which opens fiber bundle, and system which produces cleaning member
US9206534B2 (en) * 2012-12-29 2015-12-08 Unicharm Corporation Method of producing opened fiber bundle, method of producing cleaning member, apparatus which opens fiber bundle, and system which produces cleaning member
US9067328B2 (en) 2012-12-29 2015-06-30 Unicharm Corporation Cutting device and method of production of cleaning member using cutting device
US9757882B2 (en) 2012-12-29 2017-09-12 Unicharm Corporation Method of producing opened fiber bundle, and method of producing cleaning member, apparatus which opens fiber bundle, and system which produces cleaning member
US9919501B2 (en) 2012-12-29 2018-03-20 Unicharm Corporation Manufacturing method and manufacturing system for cleaning member
US10098516B2 (en) 2012-12-29 2018-10-16 Unicharm Corporation Method for producing cleaning member, and system for producing cleaning member
US10568484B2 (en) 2012-12-29 2020-02-25 Unicharm Corporation Method for producing cleaning member, and system for producing cleaning member
US10638908B2 (en) 2012-12-29 2020-05-05 Unicharm Corporation Method and system for manufacturing cleaning member
US9212011B2 (en) 2013-01-10 2015-12-15 Unicharm Corporation Stacking device and method of production of web member
US9393722B2 (en) 2013-01-10 2016-07-19 Unicharm Corporation Method of production of web member including tow
CN104770873A (en) * 2014-01-13 2015-07-15 豪尼机械制造股份公司 Channel housing for a separator nozzle for spreading tow which can be used in the production of cigarette filters and method for the spreading of tow
EP2893821A1 (en) * 2014-01-13 2015-07-15 HAUNI Maschinenbau AG Channel housing for a spreader nozzle for spreading tow which can be used in the production of cigarette filters and method for the spreading of tow

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DE1660266A1 (en) 1971-05-13
GB1134617A (en) 1968-11-27
BE694628A (en) 1967-07-31
ES337459A1 (en) 1968-03-01
DE1660266B2 (en) 1974-04-11
LU53091A1 (en) 1967-05-02
CH451395A (en) 1968-05-15
NL6703305A (en) 1967-09-04
US3444592A (en) 1969-05-20
DE1660266C3 (en) 1974-11-14
AT292174B (en) 1971-08-10

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