US3268954A - Method for disintegrating wood pulp board into its component fibers and reassembling the fibers as a soft bat - Google Patents

Method for disintegrating wood pulp board into its component fibers and reassembling the fibers as a soft bat Download PDF

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US3268954A
US3268954A US329120A US32912063A US3268954A US 3268954 A US3268954 A US 3268954A US 329120 A US329120 A US 329120A US 32912063 A US32912063 A US 32912063A US 3268954 A US3268954 A US 3268954A
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fibers
boards
pins
drum
bat
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Curt G Joa
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Joa Curt G
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    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H5/00Special paper or cardboard not otherwise provided for
    • D21H5/26Special paper or cardboard manufactured by dry method; Apparatus or processes for forming webs by dry method from mainly short-fibre or particle material, e.g. paper pulp
    • D21H5/2607Pretreatment and individualisation of the fibres, formation of the mixture fibres-gas and laying the fibres on a forming surface
    • D21H5/2614Detachment of the fibres from their compressed state, e.g. by disintegration of a pulpboard
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27NMANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08Moulding or pressing
    • B27N3/10Moulding of mats
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/14Secondary fibres

Description

Aug. 30, 1966 c. G. JoA 3,268,954

METHOD FOR DISINTEGRATING WOOD PULP BOARD INTO ITS" COMPONENT FIBERS AND REASSEMBLING THE FIBERS AS A SOFT BAT 2 Sheets-Sheet l Filed Dec. 9, 1963 INVENTOR der 6. dan

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HTTDP/VEYS Aug. 30, 1966 C. G. .10A 3,268,954

METHOD FOR DISINTEORATINO woon PULP BOARD INT0 1Ts- COMPONENT FIBERS AND REASSEMBLINO THE FIBERS As A SOFT BAT Filed Deo. 9, 1963 2 Sheets-sheet 2.

ZZ Z4 INVENTOR der dan A r rare/v V5 E54 MMT United States Patent METHOD FR DISINTEGRATING WOOD PULP BOARD INTO ITS CMPDNENT FIBERS AND REASSEMELING THE FEBERS AS A SOFT BAT Curt G. Ion, cean Ridge, Fla..

(Box 1121, Boynton Beach, Fla.)

Filed Dec. 9, 1963, Ser. No. 329,120 2 Ciaims. (Cl. 19--156.3)

This invention relates to a method for disintegrating wood pulp board into its component fibers and reassembling the fibers as a soft bat.

It has become conventional practice to ship Wood pulp in .the form of webs which have been compacted under calendering presure. The degree of hardness varies, so that the webs are not alike in density. In all such products, however, there is `a tendency for the fibers to be pulverized in the picking apparatus. I seek to retain the fizers at full length.

The invention contemplates passing the pulp web over a cylindrically rounded breaker plate, preferably in multiple plies, and picking the fiber from the sheeting by the action of pins projecting radially from `a picker drum which is rotated tangentially with respect to the rounded nose of the breaker plate to lbend the plies of pulp over the nose of the plate engaging the faces of the successive plies and movin-g toward the ends thereof to discharge the fibers therefrom with a minimum of breakage.

The pins have either staggered or random pattern on the drum so that there will be no grooving action on the pulp web. Their clearance from the Ibreaker bar is very slight. In addition, a series of small air jets are provided along the nose of the breaker bar to tend to support the pulp web and to urge it toward the pins, giving much the same effect as if the b-ar and pins had zero clearance. This `arrangement minimizes aking and also tends to assure that the individual fibers will be separated from the web with minimum breakage.

In furtherance of these objectives, a segmental backing cylinder is provided in the path of the material moving with the picking drum pins from the breaker bar. Each segment has pins projecting toward the drum in offset patterns with as little clearance as is practicable.

If buildup occurs on the pins -of the cylinder segments, the pins of the drum strip the accumulated material from the pins of the cylinder. The movement of the drum sets .up `a substantial vortex movement of air which `aids in carrying pulp fibers through a tangential outlet from the chamber in which the drum operates. The outlet passage leads to a screen belt spanning `a vacuum box and on which the liber is accumulated as a bat of substantially constant thickness.

By bending a plurality `of plies (three, in practice) over the rounded breaker plate, I get superior picking action because the difference in hardness of Vthe several plies enables over-hardness of one ply to offset over-softness of another, and vice versa with the result tha-t uniformity of operation is achieved and the upper plies receive yielding support from the lower plies. This seems to facilitate the separation of fiber from all Iof them, even including the lowermost.

In the drawings:

FIG. 1 is a diagrammatic view partially in side elevation and partially in transverse section through apparatus for the practice of the invention.

FIG. 2 is an enlarged detail view of a porti-on of the apparatus shown in FIG. l.

FIG, 3 is a fragmentary View partially in elevation and partially in section showing the breaker pl-ate and portions of the cylinder as they appear with the drum removed.

FIG. 4 is a fragmentary view in inverted plan from 3,253,954 Patented August 3G, i966 ICC the portion of the breaker plate to which air pressure is admitted.

FIG. 5 is an enlarged detail View in section diagrammatically showing how the individual pins -of the drum pene- 4trate the successive plies folded over the breaker plate.

The relatively hard calendered pulp web 10, preferably in multiple plies (three being shown by way of example) is delivered by paired feed rolls I2 .and I4 over `a breaker bar 16 to which the web is held securely by a clamping bar 18.

The breaker bar 16 extends transversely of the direction of web movement, which is from left to right as viewed in FIGS. 1, 2 and 5. The nose portion 2.0` of the breaker har is cylindrically rounded and is in very close proximity to the path of picking pins 22 which project from a picking drum 24 rotated at high speed by motor 25 to move the pins tangentially with respect to the rounded surface Ztl and in counterclockwise direction as viewed in FIGS. 1 and 2. The pins are offset in staggered pattern on the picke-r drum and are spaced at about a quarter of an inch from each other, on the average. Their points are within a few thousandths of an inch from the surface 2@ at the point of tangency. By way of example, and not by way of limitation, a clearance of 0.002-0.005 inch is desirable to obtain optimum picking lof the fiber.

I achieve even less clearance, in effect, by providing the bar 16 with a series of air vents directed toward the drum 24. Conveniently, this can be done by using a plate at 2.6 which has grooves 28 opening toward the drum and registering with a manifold channel 3@ which receives air from a pressure line 32. As best shown in FIG. 5, there is a tendency for the jets of air issuing from the grooves 28 to force toward the drum 24 the leading ends of the pulp web or webs 10. rIo the extent that these we-b ends are deflected toward the drum, the pins 22 of the picking drum extend completely through the plies thus, in effect, reducing the clearance to zero.

Coacting with the pins 22 of drum 24 `are stationary pins 34 preferably also offset in staggered pattern and mounted in cylinder segments 36 and 38. The average spacing of the lpins from each other may be approximately one-eighth inch, .as on the drum, and the clearance between the pins of the cylinder segments and those of `the drum may be approximately 0.010 inch or as close as is mechanically praticable.

The rotation of the drum 24 creates a substantial vortical movement of air Within the housing 4t] and the air thus set in motion tends to carry the pulp liber `through the tangential discharge opening 42 toward a screen belt 44 which is operated over a lower pulley 46 and an upper pulley 48. Behind the portion of the belt enclosed by the belt housing 50 is a vacuum chamber 52 having a suction outlet 54. The arrangement is such that a bat 6i) builds up on the belt 44 as best shown in FIG. 1. The fioating leveling rotors 53 rotate downwardly in opposition to the upward movement of bat on belt 44 and tend to level off ythe bat 60. Any displaced pulp falls toward the bottom of chamber 40 and is entrained in the air stream moving toward the vacuum box, being thereby re-engaged with belt 44. So far as the building up of the bat is concerned, it is somewhat comparable to that disclosed in Patent 3,086,253, issued April 23, 1963.

In the operation of the device, it is preferred that a plurality of separately fabricatedv webs or plies of pulp board are laminated or superimposed and fed concurrently into the apparatus. It is important that the successive pins 22 of the picker drum 24 engage the outer or originally upper surfaces of 4the ply or plies of pulp 10 as these are bent over the rounded nose 20 of the breaker plate 16. Thus, the picking action of the pins is always exerted parallel to the face of the plate toward the free end thereof instead of at right angles to the web. It is found that this contributes materially toward the preservation 4of maximum ber length. In addition, it is found that full length unbroken fibers are more readily obtained when a plurality of plies are fed concurrently over the nose of the breaker plate, than is the case if a single 'ply is fed thereover. Pneumatically urging the free ends of these plies toward the path of the picker drum pins is also a factor.

To minimize the aigglomeration of fibers by electro4 static action the air supplied through the pressure line 32 is preferably humidified heavily with Water or other liquid capable of reducing the electrostatic charge on the bers.

I claim:

1. A method of removing fibers from compacted wood pulp boards which individually have different degrees of hardness and density and reassembling the bers as a s-oft bat and comprising the steps of superimposing in laminated face relation a plurality of such boards so that the aggregate hardness and density of successive sets of such laminated boa-rds tends to be more uniform than successive individual boards, feeding the laminated boards toward a picking drum provided With pins, ro rating the drum and Ibending the laminated boards concurrently into substantial tangency with the movement of the pins so that a lower board yieldingly supports an upper board `and supports said boards in positions such that said pins progressively enter top surface portions of `the successive superimposed boards and move toward the ends of such boards to pick fibers therefrom, delivering such fibers to a bat forming screen and forming a soft bat from said bers on said screen.

2. A method according to claim 1 which further includes the step of pneumatically urging the free end portions Iof said superimposed boards into the path of said pins.

References Cited by the Examiner UNITED STATES PATENTS 8,371 9/1851 Sargent et al. 19-83 852,474 5/1907 Tyden 19-1455 1,216,790 2/1917 Faunce 19-80 2,086,592 7/1937 Williams 19-156.3 X 2,331,943 10/1943 Von Osten 19-83 X 3,086,253 4/1963 Joa 19-156 X FOREIGN PATENTS 14,317 1893 Great B-ritain.

5 MERVIN STEIN, Primary Examiner.

DONALD W. PARKER, Examiner.

D. NEWTON, Assistant Examiner.

Claims (1)

1. A METHOD OF REMOVING FIBERS FROM COMPACTED WOOD PULP BOARDS WHICH INDIVIDUALLY HAVE DIFFERENT DEGREES OF HARDNESS AND DENSITY AND REASSEMBLYING THE FIBERS AS A SOFT BAT AND COMPRISING THE STEPS OF SUPERIMPOSING IN LAMINATED FACE RELATION A PLURALITY OF SUCH BOARDS SO THAT THE AGGREGATE HARDNESS AND DENSITY OF SUCCESSIVE SETS OF SUCH LAMINATED BOARDS TENDS TO BE MORE UNIFORM THAN SUCCESSIVE INDIVIDUAL BOARDS, FEEDING THE LAMINATED BOARDS TOWARD A PICKING DRUM PROVIDED WITH PINS, TOTATING THE DRUM AND BENDING THE LAMINATED BOARDS CONCURRENTLY INTO SUBSTANTIAL TANGENCY WITH THE MOVEMENT OF THE PINS SO THAT A LOWER BOARD YIELDING SUPPORTS AN
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CH1582064A CH429422A (en) 1963-12-09 1964-12-08 Method and apparatus for fiberizing pressed pulp sheets and for recombining the fibers into a soft tape

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Cited By (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3423796A (en) * 1964-02-28 1969-01-28 Mo Och Domsjoe Ab Defibrator
US3475791A (en) * 1967-05-08 1969-11-04 Johnson & Johnson Method for separating,conveying and collecting woodpulp fibers as a uniform layer and apparatus for carrying out the same
US3494001A (en) * 1967-03-06 1970-02-10 Kimberly Clark Co Apparatus and method for making sanitary napkins
US3538551A (en) * 1968-05-15 1970-11-10 Curt G Joa Disc type fiberizer
FR2158824A5 (en) * 1971-09-22 1973-06-15 Procter & Gamble
US3932915A (en) * 1974-08-09 1976-01-20 E. I. Du Pont De Nemours & Company Air-laydown apparatus for forming uniform webs of staple fibers
DE2626033A1 (en) * 1975-06-13 1976-12-23 Scott Paper Co A method and apparatus for separating fibers from a stack of fibrous sheets or arches
DE2757139A1 (en) * 1977-01-17 1978-07-20 Joa Curt G Inc fluff allocator
US4118832A (en) * 1976-09-13 1978-10-10 Scott Paper Company Method for minimizing the accumulation of static charges on fibers resulting from fiberization of pulp lap sheets
US4701294A (en) * 1986-01-13 1987-10-20 Kimberly-Clark Corporation Eductor airforming apparatus
US4904439A (en) * 1988-07-18 1990-02-27 Johnson & Johnson Method of making a non-woven fiber web using a multi-headed ductless webber
US5007137A (en) * 1989-01-18 1991-04-16 Hergeth Hollingsworth Gmbh Carding apparatus
US20030141028A1 (en) * 2001-10-30 2003-07-31 Weyerhaeuser Company Dried singulated cellulose pulp fibers
US20030188838A1 (en) * 2001-10-30 2003-10-09 Yancey Michael J. Process for producing dried singulated crosslinked cellulose pulp fibers
US6769199B2 (en) 2001-10-30 2004-08-03 Weyerhaeuser Company Process for producing dried singulated cellulose pulp fibers using a jet drier and injected steam and the product resulting therefrom
US6782637B2 (en) 2001-10-30 2004-08-31 Weyerhaeuser Company System for making dried singulated crosslinked cellulose pulp fibers
US6862819B2 (en) 2001-10-30 2005-03-08 Weyerhaeuser Company System for producing dried singulated cellulose pulp fibers using a jet drier and injected steam
US20050086828A1 (en) * 2001-10-30 2005-04-28 Weyerhaeuser Company Process for producing dried, singulated fibers using steam and heated air
US7303708B2 (en) 2004-04-19 2007-12-04 Curt G. Joa, Inc. Super absorbent distribution system design for homogeneous distribution throughout an absorbent core
US7374627B2 (en) 2004-04-19 2008-05-20 Curt G. Joa, Inc. Method of producing an ultrasonically bonded lap seam
US7398870B2 (en) 2005-10-05 2008-07-15 Curt G. Joa, Inc Article transfer and placement apparatus
US7452436B2 (en) 2005-03-09 2008-11-18 Curt G. Joa, Inc. Transverse tape application method and apparatus
US7533709B2 (en) 2005-05-31 2009-05-19 Curt G. Joa, Inc. High speed vacuum porting
US7537215B2 (en) 2004-06-15 2009-05-26 Curt G. Joa, Inc. Method and apparatus for securing stretchable film using vacuum
US7618513B2 (en) 2005-05-31 2009-11-17 Curt G. Joa, Inc. Web stabilization on a slip and cut applicator
US7638014B2 (en) 2004-05-21 2009-12-29 Curt G. Joa, Inc. Method of producing a pants-type diaper
US7640962B2 (en) 2004-04-20 2010-01-05 Curt G. Joa, Inc. Multiple tape application method and apparatus
US7703599B2 (en) 2004-04-19 2010-04-27 Curt G. Joa, Inc. Method and apparatus for reversing direction of an article
US7708849B2 (en) 2004-04-20 2010-05-04 Curt G. Joa, Inc. Apparatus and method for cutting elastic strands between layers of carrier webs
US7770712B2 (en) 2006-02-17 2010-08-10 Curt G. Joa, Inc. Article transfer and placement apparatus with active puck
US7780052B2 (en) 2006-05-18 2010-08-24 Curt G. Joa, Inc. Trim removal system
US7811403B2 (en) 2005-03-09 2010-10-12 Curt G. Joa, Inc. Transverse tab application method and apparatus
US7861756B2 (en) 2004-04-20 2011-01-04 Curt G. Joa, Inc. Staggered cutting knife
US7975584B2 (en) 2007-02-21 2011-07-12 Curt G. Joa, Inc. Single transfer insert placement method and apparatus
US8007484B2 (en) 2005-04-01 2011-08-30 Curt G. Joa, Inc. Pants type product and method of making the same
US8016972B2 (en) 2007-05-09 2011-09-13 Curt G. Joa, Inc. Methods and apparatus for application of nested zero waste ear to traveling web
US8172977B2 (en) 2009-04-06 2012-05-08 Curt G. Joa, Inc. Methods and apparatus for application of nested zero waste ear to traveling web
US8182624B2 (en) 2008-03-12 2012-05-22 Curt G. Joa, Inc. Registered stretch laminate and methods for forming a registered stretch laminate
US8398793B2 (en) 2007-07-20 2013-03-19 Curt G. Joa, Inc. Apparatus and method for minimizing waste and improving quality and production in web processing operations
US8417374B2 (en) 2004-04-19 2013-04-09 Curt G. Joa, Inc. Method and apparatus for changing speed or direction of an article
US8460495B2 (en) 2009-12-30 2013-06-11 Curt G. Joa, Inc. Method for producing absorbent article with stretch film side panel and application of intermittent discrete components of an absorbent article
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US8656817B2 (en) 2011-03-09 2014-02-25 Curt G. Joa Multi-profile die cutting assembly
US8663411B2 (en) 2010-06-07 2014-03-04 Curt G. Joa, Inc. Apparatus and method for forming a pant-type diaper with refastenable side seams
US8673098B2 (en) 2009-10-28 2014-03-18 Curt G. Joa, Inc. Method and apparatus for stretching segmented stretchable film and application of the segmented film to a moving web
USD703248S1 (en) 2013-08-23 2014-04-22 Curt G. Joa, Inc. Ventilated vacuum commutation structure
USD703247S1 (en) 2013-08-23 2014-04-22 Curt G. Joa, Inc. Ventilated vacuum commutation structure
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USD703711S1 (en) 2013-08-23 2014-04-29 Curt G. Joa, Inc. Ventilated vacuum communication structure
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US8820380B2 (en) 2011-07-21 2014-09-02 Curt G. Joa, Inc. Differential speed shafted machines and uses therefor, including discontinuous and continuous side by side bonding
US9089453B2 (en) 2009-12-30 2015-07-28 Curt G. Joa, Inc. Method for producing absorbent article with stretch film side panel and application of intermittent discrete components of an absorbent article
US9283683B2 (en) 2013-07-24 2016-03-15 Curt G. Joa, Inc. Ventilated vacuum commutation structures
US9289329B1 (en) 2013-12-05 2016-03-22 Curt G. Joa, Inc. Method for producing pant type diapers
US9387131B2 (en) 2007-07-20 2016-07-12 Curt G. Joa, Inc. Apparatus and method for minimizing waste and improving quality and production in web processing operations by automated threading and re-threading of web materials
US9433538B2 (en) 2006-05-18 2016-09-06 Curt G. Joa, Inc. Methods and apparatus for application of nested zero waste ear to traveling web and formation of articles using a dual cut slip unit
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US9622918B2 (en) 2006-05-18 2017-04-18 Curt G. Joe, Inc. Methods and apparatus for application of nested zero waste ear to traveling web
US9809414B2 (en) 2012-04-24 2017-11-07 Curt G. Joa, Inc. Elastic break brake apparatus and method for minimizing broken elastic rethreading
US9944487B2 (en) 2007-02-21 2018-04-17 Curt G. Joa, Inc. Single transfer insert placement method and apparatus
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US1216790A (en) * 1916-04-06 1917-02-20 Vernon C Faunce Lap-rod retainer for pickers, carding-engines, &c.
US2086592A (en) * 1928-07-24 1937-07-13 Harrison R Williams Carding and forming apparatus
US2331943A (en) * 1941-02-07 1943-10-19 Sophie S Von Osten Textile disintegrating machine
US3086253A (en) * 1957-02-14 1963-04-23 Falls Paper & Power Company Method and apparatus for producing fibrous batts

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GB189314317A (en) * 1893-07-25 1893-09-23 Henry Brueggemann Improvements in Openers and Scutchers.
US852474A (en) * 1906-07-26 1907-05-07 Emil Tyden Fiber-mixer.
US1216790A (en) * 1916-04-06 1917-02-20 Vernon C Faunce Lap-rod retainer for pickers, carding-engines, &c.
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US2331943A (en) * 1941-02-07 1943-10-19 Sophie S Von Osten Textile disintegrating machine
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Cited By (83)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3423796A (en) * 1964-02-28 1969-01-28 Mo Och Domsjoe Ab Defibrator
US3494001A (en) * 1967-03-06 1970-02-10 Kimberly Clark Co Apparatus and method for making sanitary napkins
US3475791A (en) * 1967-05-08 1969-11-04 Johnson & Johnson Method for separating,conveying and collecting woodpulp fibers as a uniform layer and apparatus for carrying out the same
US3538551A (en) * 1968-05-15 1970-11-10 Curt G Joa Disc type fiberizer
FR2158824A5 (en) * 1971-09-22 1973-06-15 Procter & Gamble
US3863296A (en) * 1971-09-22 1975-02-04 Procter & Gamble Process for preparing airfelt
US4089086A (en) * 1974-08-09 1978-05-16 E. I. Du Pont De Nemours And Company Air lay-down process for producing uniform lightweight webs from textile fibers
US3932915A (en) * 1974-08-09 1976-01-20 E. I. Du Pont De Nemours & Company Air-laydown apparatus for forming uniform webs of staple fibers
US4064599A (en) * 1975-06-13 1977-12-27 Scott Paper Company Fiberizing method and apparatus employing differential feed system
DE2626033A1 (en) * 1975-06-13 1976-12-23 Scott Paper Co A method and apparatus for separating fibers from a stack of fibrous sheets or arches
US4118832A (en) * 1976-09-13 1978-10-10 Scott Paper Company Method for minimizing the accumulation of static charges on fibers resulting from fiberization of pulp lap sheets
DE2757139A1 (en) * 1977-01-17 1978-07-20 Joa Curt G Inc fluff allocator
US4701294A (en) * 1986-01-13 1987-10-20 Kimberly-Clark Corporation Eductor airforming apparatus
US4904439A (en) * 1988-07-18 1990-02-27 Johnson & Johnson Method of making a non-woven fiber web using a multi-headed ductless webber
US5007137A (en) * 1989-01-18 1991-04-16 Hergeth Hollingsworth Gmbh Carding apparatus
US20080010853A1 (en) * 2001-10-30 2008-01-17 Weyerhaeuser Co. Process for Producing Dried Singulated Fibers Using Steam and Heated Air
US20030188838A1 (en) * 2001-10-30 2003-10-09 Yancey Michael J. Process for producing dried singulated crosslinked cellulose pulp fibers
US6748671B1 (en) 2001-10-30 2004-06-15 Weyerhaeuser Company Process to produce dried singulated cellulose pulp fibers
US20040123483A1 (en) * 2001-10-30 2004-07-01 Vrbanac Michael David Process to produce dried singulated cellulose pulp fibers
US6769199B2 (en) 2001-10-30 2004-08-03 Weyerhaeuser Company Process for producing dried singulated cellulose pulp fibers using a jet drier and injected steam and the product resulting therefrom
US6782637B2 (en) 2001-10-30 2004-08-31 Weyerhaeuser Company System for making dried singulated crosslinked cellulose pulp fibers
US20040177936A1 (en) * 2001-10-30 2004-09-16 Vrbanac Michael David Dried singulated cellulose pulp fibers
US6862819B2 (en) 2001-10-30 2005-03-08 Weyerhaeuser Company System for producing dried singulated cellulose pulp fibers using a jet drier and injected steam
US20030141028A1 (en) * 2001-10-30 2003-07-31 Weyerhaeuser Company Dried singulated cellulose pulp fibers
US20050086828A1 (en) * 2001-10-30 2005-04-28 Weyerhaeuser Company Process for producing dried, singulated fibers using steam and heated air
US6910285B2 (en) 2001-10-30 2005-06-28 Weyerhaeuser Company Process to produce dried singulated cellulose pulp fibers
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