WO1991005109A1 - Appareil et procede de fabrication d'une nappe en matiere fibreuse - Google Patents

Appareil et procede de fabrication d'une nappe en matiere fibreuse Download PDF

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Publication number
WO1991005109A1
WO1991005109A1 PCT/SE1990/000621 SE9000621W WO9105109A1 WO 1991005109 A1 WO1991005109 A1 WO 1991005109A1 SE 9000621 W SE9000621 W SE 9000621W WO 9105109 A1 WO9105109 A1 WO 9105109A1
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WO
WIPO (PCT)
Prior art keywords
pulp
casing
fibres
fibre
stream
Prior art date
Application number
PCT/SE1990/000621
Other languages
English (en)
Inventor
Ove Ahlstrand
Original Assignee
Ove Ahlstrand
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 Ove Ahlstrand filed Critical Ove Ahlstrand
Publication of WO1991005109A1 publication Critical patent/WO1991005109A1/fr

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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
    • D04H1/736—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 characterised by the apparatus for arranging fibres
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15617—Making absorbent pads from fibres or pulverulent material with or without treatment of the fibres
    • A61F13/15658—Forming continuous, e.g. composite, fibrous webs, e.g. involving the application of pulverulent material on parts thereof
    • 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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/06—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods
    • D21B1/066—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods the raw material being pulp sheets
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F9/00—Complete machines for making continuous webs of paper

Definitions

  • the present invention relates to an apparatus and a method for producing a fibre web from a pulp,e.g. cellulose pulp, preferably a liquid absorbent web. More specificly, the invention relates to an arrangement in apparatus for produ ⁇ cing a fibre web from pulp, comprising a clipping unit for dividing the pulp into pieces, a defibering unit for mutii- ally separating fibres in the clipped pulp pieces and form ⁇ ing a stream of gas-suspended fibres, a forming unit inclu ⁇ ding at least one endless, gas-permeable conveyor belt for forming a fibre web from the suspended fibres on one side of the conveyor belt while a subpressure is maintained on the opposite side of the conveyor belt, and a fibre-bundle sepa ⁇ rator for removing bundles of incompletely defibered pulp from the mutually separated fibres r wherein the defibering unit includes a rotor which is rotatably journalled in a stationary casing having a pulp inlet and an outlet
  • a pre-shredded pulp in flake form is fed into a disc refi ⁇ ner, centrally between two circular refiner discs which can be rotated relative to one another. At least one of the
  • SUBSTITUTE SHEET discs has formed therein radial grooves with which the pulp is worked, such as to mutually separate the pulp fibres.
  • the mutually separated fibres are discharged through an outlet located at the periphery of the discs.
  • a disc refiner will produce defibered pulp, fluff, of good quality, it has the drawback of being expensive.
  • Another drawback with such refiners is that the pulp must be shredded into flakes before the pulp can be processed in the refiner, therewith eliminating the direct use of so-called roll pulp, i.e. pulp that has been wound in roll form.
  • a fluff mat is produced conventionally in different part stages.
  • the pulp pieces are fed into a refiner or a mill in which the pulp fibres are mutually separated into fibres of long, medium and short lengths.
  • the flow of fibre material is passed through conduits to a portioning device, wherein in some cases part of the short fibres and non-defibered bundles are isolated from the flow of fibre material during its passage to the portioning device.
  • the mutually separated short fibres are returned to the process at a later stage, whereas the fibre bundles are returned to the mill for further processing.
  • the fibre material flowing from the portioning device is passed to a forming device in which fibre layers or webs are formed on endless, air-permeable conveyor paths.
  • a conventional system consximes a considerable amount of energy, due to long transportation paths in narrow conduits and ineffective degradation and defibering of the pulp.
  • the high energy consumption generates heat, which affects the mutually separated fibres unfavourably, said fibres becoming brittle and resulting in a fluff mat of poorer quality.
  • the design of conventional mills is such that there is generated within the mill a partial overpressure which results in the departure of particles through openings and gaps in the mill, and therewith in the creation of environmental problems.
  • An object of the present invention is to solve the afore ⁇ said problems by providing apparatus of low power consump ⁇ tion which apparatus will enable production of a final product in the form of a fluff mat which has uniform qua ⁇ lity and which therefore need not be further processed, and wherein the thickness or weight per surface are (grammage) of the fluff mat can be regulated with considerable flexibi ⁇ lity.
  • the starting material may be recovered to an unusually great extent, resulting in improvements to the environment.
  • the fibre outlet is an opening through which both the mutually separated fibres and the incompletely defibered pulp can exit from the casing and with which there is connected an outlet channel which initially has a substantially tangential extension relative to the casing and thereafter an outwardly curved extension
  • the bundle separator includes a bundle-separator channel which branches from the outlet channel at the location where said channel departs from its tangential course and which bundle-separator channel has an inlet end which con ⁇ tinues in the substantially tangential direction.
  • the invention also relates to a method for producing a fibre web from pulp, comprising dividing pulp into pieces, defibering the pulp while forming a stream of gas-suspended, mutually- separated fibres and bundles of incompletely defibered pulp, separating fibre bundles from said stream, and forming re ⁇ maining fibres into a fibre web, wherein the defibering process is carried out in a- defibering unit of the kind which includes a rotor rotatably joumalled in a stationary casing having a pulp inlet and an outlet for the mutually separated fibres, the periphery of said rotor being spaced from the inner surface of the casing and carrying thereon a plurality of defibering hammers which are intended to coact with a pulp shredding surface which is located on the inner surface of the casing in a region extending from the pulp inlet to the fibre outlet.
  • the method according to the invention is characterized in that subsequent to having once passed the shredding surface the stream formed in the defibering' unit is slung outwardly, sub ⁇ stantially in its entirety and substantially tangentially from the casing, whereupon the stream is divided into a first part-stream which is caused to follow a guide surface which extends initially substantially tangentially from the upstream edge of the outlet and then curves outwardly, said part stream containing almost exclusively mutually separated fibres due to the occurrent Coanda-effect, and into a second part-stream which contains the remainder of the gas-suspended material, including the fibre bundles, and which follows a substantially tangential course from the stream-dividing location.
  • a method for producing fibre webs said method, in comparison with conventional methods, having the advantage that the pro ⁇ duction of said fibre webs is effected in one single, con ⁇ tinuous process in the absence of intermediate transportations and without needing to store and meter intermediate products.
  • the width of the starting material i.e. the roll pulp
  • the width of the starting material is essentially the same as the width of the fibre web produced, and the various process steps between feeding-in the starting material into the apparatus and discharging the final product therefrom are all carried out at the same width. No collec ⁇ tion of intermediate products takes place in conduits or the like and no changes in width are necessary during the process, and consequently the material spread initially found in the roll pulp is used in the process.
  • the thickness of the fibre web is directly proportional to the infeed speed of the roll pulp and can thus be adjusted very simply, by commensurate adjustment to the infeed speed of said pulp. In the manufacture of disposable diapers, for instance, there is a need to vary the layer thickness along the length of the diaper, which can readily be achieved by pulsated infeed of the roll pulp.
  • the inventive apparatus and method provide a fluff mat of high quality, in that the extraction of high quality long and medium-long fibres can be maximized while at the same time separating-out the remaining fibre bundles, and by forming the mat in the immediate vicinity of the defibering process where mutual separation of the fibres is most pro ⁇ nounced.
  • - Figure 1 is a vertical, sectional view of an inventive arrangement
  • - Figure 2 is a sectional view taken on the line II-II in Figure 1;
  • FIG. 3 is a sectional view taken on the line III-III in Figure 1;
  • FIG. 4 is an enlarged vertical view in section of a pulp-clipping hammer according to Figure 1;
  • FIG. 5 is a perspective view of the clipping hammer according to Figure 1;
  • FIG. 6 is an enlarged vertical view in section of a defibering hammer according to Figure 1;
  • - Figure 7 is a perspective view of the defibering hammer according to Figure 1; and
  • - Figure 8 is a principle diagram of bundle separator and forming device according to Figure 1.
  • Figure 1 illustrates the steps of infeeding, clipping de ⁇ fibering, separating and forming starting material in the form of roll pulp 1 into a final product in the form of a fluff web or mat 2.
  • the width of the roll pulp 1 can vary, perferably between about 0.1 m up to 1 m, depending upon the desired width of the fluff mat.
  • the roll pulp 1 is fed between two feed rollers 3 - which suitably can be driven at a controllable speed - into an infeed opening 4 in a stationary casing 5 of a pulp-clipping and pulp-defibering unit.
  • the roll pulp 1 moves along an anvil knife 6 (see also Figure 4) which is mounted on the outside of the casing 5 adjacent the infeed opening 4.
  • Rotatably mounted in the casing 5 is a drum or rotor 7, the axial extension of which is substantially equal to the width of the infeed opening 4 and the roll pulp 1, respectively.
  • the drum 7 has mounted thereon a plurality of clipping hammers 8 which are disposed over the outer peripheral surface of the drum, preferably in uniform spaced relationship, along a number of axially exten- ding axles on the drum surface (see Figure 2) .
  • each clipping hammer 8 disposed along the drum peri ⁇ phery will coact in sequence with the anvil knife 6, so as to clip pieces successively from the pulp along the whole width of the roll pulp.
  • the displacement between consecutive clipp- ing hammers in the direction of the drum rotation axis is smaller than, or substantially equal to the maximum width b, of each clipping hammer.
  • the clipping hammer 8 is shown in more detail in Figures 4 and 5. As illustrated in Figure 4, the clipping hammer 8 is pivotally mounted on the cylindrical drum 7. The peripheral speed of the drum 7, which is preferably between 50-150 m/s, generates on the hammer 8 a centrifugal force which is suffi ⁇ cient to move the hammer to a radial position during normal operation. If, on the other hand, foreign particles enter the path of the hammer, the hammer is able to swing to one side, and thereby avoid damage to the apparatus.
  • the clipping hammer 8 comprises a tool holder 9 in which there is arranged a cutter 10 which is preferably made of hardmetal and which ' has the width b, .
  • the cutter 10 coacts with the anvil knife 6 as the drum rotates, thereby clipping or cutting a piece from the roll pulp.
  • the pivot centre of the hammer 8 and the edge of the cutter 10 are disposed on the axis 27 which passes through the centre of gravity of the hammer.
  • a number of defibering hammers 11 are disposed on the drum 7, these hammers being preferably positioned symmetrically around the drum periphery, along axially extending axles.
  • the defibering hammers 11 (see also Figures 6 and 7) coact with a shredder surface 12 fixed ⁇ ly mounted on the casing 5.
  • the shredder surface is patterned, preferably toothed, or smooth and has an extension along the peripheral surface of the casing corresponding to about 180 C of arc in the shown embodiment for mutually separating fibres from the clipped pulp.
  • the defibering surface of the defibering hammers may be patter ned, preferably serrated or toothed, as illustrated in Figures 6 and 7.
  • the segment of the casing carrying the shredder sur ⁇ face 12 may be adjustable, e.g. by pivoting about an axis arranged adjacent to the knife 6 and in parallel with the drum axis, for controlling the distance between the shredder surface and the active surfaces of the defibering hammers 11.
  • the latter surfaces have a width b_ ( Figure 7) dimensioned in manner such that the shredder surface 12 will be traversed by said surfaces along its entire extension as seen in the direction of the drum axis.
  • a rectangular outlet or web- forming opening 13 Arranged in the casing 5 is a rectangular outlet or web- forming opening 13, to the upstream edge of which is connected an upper part of a first, permeable endless con ⁇ veyor belt 14, said part extending initially tangentially and then curving outwardly towards a second, permeable endless conveyor belt 15. More specificly, the upper part or run of the conveyor belt 14 forms a lower guide surface or wall of an outlet channel which is connected to the fibre outlet opening 13 and which initially has a substantially tangential extension relative to the casing 5 and thereafter an outwardly curved extension.
  • the two conveyor belts are movable on a number of rotatable rollers 16 and form, sequentially, a fluff-mat forming path.
  • a forming hood 17 is located adjacent the forming opening 13 on the upper side or run of the first conveyor belt 14, and a first suction box 18 is positioned adjacent the forming opening 13 on the under ⁇ side of the upper run of belt 14, so as to generate a sub- pressure on said underside when forming the fluff mat on the conveyor belt 14 (see also Figure 8) .
  • This first suction box 18 is connected to a forming hood 19 on that side of the second conveyor belt 15 on which the constructed fluff mat is carried, and a second suction box 20 is positioned on the opposite side of the belt so as to create a sub- pressure on said opposite side.
  • the embodiment illustrated in Figure 1 also includes a fan 21 which is connected to the two suction boxes 18, 20, and a simple filter 22 for filtering exhaust air.
  • the bundle separator 23 includes a bundle-separator channel 24 which branches from the outlet channel at the location where said channel departs from its tangential course and which bundle-separator channel has an inlet end which continous in the substantially tangential direction.
  • the channel 24 which extends outside the cylindrical casing 5, then curves arcuately inwards and connects with the casin in the proximity of the infeed opening 4.
  • An ejector device 25 having an air inlet 26 generates a pressure drop in rela ⁇ tion to the forming opening 13 at the adjoinment of the channel 24 with the casing, the air stream thus created en ⁇ training the fibre bundles into a new defibering phase.
  • An alternative embodiment of the inventive apparatus will provide a fluff mat of good quality in the manufac- ture of webs of low grammages.
  • the forming hood 17 at the first conveyor belt 14 is removed, so that atmospheric pressure will prevail over the belt, and instead a fan is provided at the air inlet 26 so as to create an overpressure in the defibering unit.
  • the roll pulp 1 is taken from a pulp reel and fed bet- ween the feed rollers 3 and along the anvil knife 6, and is clipped against the edge of said knife into pieces of appropriate large size upon engagement with the rotating clipping hammers 8.
  • Each clipping hammer will thus functiono to sever a pulp piece which is smaller than or equal to th width of the cutter 10.
  • the height of the pulp piece is controlled by the speed at which the pulp is advanced in combination with the rotational speed of the drum 7.
  • the severed pulp piece is ground, kneeded, rolled, clipped and worked between the rotating defibering hammers 11, with their toothed or serrated heads, and the smooth or toothed shredder surface 12.
  • Major proportions of the pulp fibres are mutually separated during passage of the pulp from the infeed opening 4 to the forming opening 13.
  • the pulp pieces will have been converted to mutually se ⁇ parated short ( ⁇ 1 mm) , average-long (about 1-3 mm) and lon fibres (>3 mm) and n ⁇ n-defibered bundles.
  • the bundles are heavy and have a high kinetic energy and therefore attempt to continue to move in a straight, forward path (i.e. tan ⁇ gentially) , wherewith the bundles are separated from the separated fibres by being slung tangentially into the bundle separator 23 and flow through said separator, under the influence of the pressure difference prevailing bet- ween the forming opening 13 and the separator outlet.
  • the fibre bundles are then returned to the defibering unit, where they are again worked to separate the fibres con ⁇ tained therein.
  • the long, medium-long and short fibres follow the curved surfaces of the suction box 18 and the conveyor belt 14, as a result of the Coanda-effect, and successive forming of the fluff mat commences on the moving belt.
  • the per- viousness of the belt is so selected that long and average- long fibres will be deposited to form a fluff mat 2, where ⁇ as short fibres are sucked through the belt by the sub- pressure force acting in the suction box 18.
  • the fluff mat essen ⁇ tially consist of solely long and average-long fibres, which impart a high network strength to the mat.
  • the short fibres, which impart no strength to the mat are thus extracted in the mat-forminq_ process.
  • both the shredder sur ⁇ face and the defibering surface on the defibering hammers may have different pattern configurations, such as toothed, fluted, undulating or other pattern configurations.
  • the radius of the defibering surface of the defibering hammers may vary and the defibering hammers, and also the clipping hammers, may be pivotally mounted on the drum, for safety reasons.
  • the clipping hammers may be provided with a cutte which is positioned obliquely in relation to the anvil kni instead of being parallel.
  • the extension of the shredder surface corre ⁇ sponds to about 180° of arc although the surface may vary in size between a value corresponding to a comparatively small angle of arc to an extension along the whole of the surface from the inlet opening to the forming opening.
  • the shredder surface or the casing may be pivotally mounted adjacent the anvil knife so as to enable adjustments to be made to the distance between the defibering hammers and the shredder surface and therewith adapt the apparatus to mutually different types of pulp.
  • the conveyor belt 14 may be adjoined to the forming opening 13 with a trans verse edge, a so-called set-off, which forms beneath the a stream a small space in which there is generated a sub- pressure which assists in guiding the air-fibre stream along the conveyor belt.
  • the conveyor belt 14 may be replaced by an unperforated guide surface or plate. It also lies within the scope of the invention to shred or clip the pulp into pieces in a separat unit preceeding the defibering unit. Futhermore, the separated fibre bundles can be conveyed, for instance, to a collecting bin, from which they could be conveyed to the defibering unit.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Epidemiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Manufacturing & Machinery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

On décrit un agencement et un procédé destinés à fabriquer une nappe fibreuse (2) à partir d'une pâte. L'agencement comprend une unité de découpage (3, 6, 8) servant à découper la pâte (1), une unité défibreuse (5, 7, 11) servant à séparer les fibres dans la pâte découpée, et une unité de formation (15-20) servant à former la nappe fibreuse. L'unité défibreuse comprend un rotor (7) tourillonné dans un boîtier (5) qui possède une entrée de pâte (4) et une ouverture de sortie (13) de fibres. Le rotor (7) porte des marteaux défibreurs (11) destinés à coopérer avec une surface de déchiquetage (12) située sur la surface interne du boîtier. L'ouverture de sortie de fibres (13) permet à la fois aux fibres séparées et à la pâte dont le défibrage est inachevé d'être déchargées du boîtier (5). Une canalisation de sortie est reliée à l'ouverture et est initialement sensiblement tangentielle par rapport au boîtier, et ensuite courbée vers l'extérieur. Un dispositif séparateur (23) de bottes possède une canalisation de séparation de bottes (24) qui bifurque de la canalisation de sortie à l'endroit où celle-ci quitte sa course tangentielle, et la canalisation de séparation de bottes (24) possède une extrémité d'entrée à course continue et sensiblement tangentielle.
PCT/SE1990/000621 1989-09-28 1990-09-27 Appareil et procede de fabrication d'une nappe en matiere fibreuse WO1991005109A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8903189A SE464475B (sv) 1989-09-28 1989-09-28 Anordning foer att framstaella en materialbana av fibrer
SE8903189-2 1989-09-28

Publications (1)

Publication Number Publication Date
WO1991005109A1 true WO1991005109A1 (fr) 1991-04-18

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ID=20376998

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1990/000621 WO1991005109A1 (fr) 1989-09-28 1990-09-27 Appareil et procede de fabrication d'une nappe en matiere fibreuse

Country Status (3)

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AU (1) AU6506090A (fr)
SE (1) SE464475B (fr)
WO (1) WO1991005109A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000004232A1 (fr) * 1998-07-14 2000-01-27 M & J Fibretech A/S Separateur de noeuds
CN105887547A (zh) * 2016-06-28 2016-08-24 湖南科立特环保成套设备有限公司 一种造纸设备及造纸方法
CN105951495A (zh) * 2016-06-28 2016-09-21 湖南科立特环保成套设备有限公司 一种解纤设备及解纤方法
CN106049160A (zh) * 2016-06-28 2016-10-26 湖南科立特环保成套设备有限公司 一种纸页形成器及纸页形成方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB892295A (en) * 1959-07-29 1962-03-28 Tmm Research Ltd Improvements relating to the opening of textile fibres and the formation of a web ormat thereof
EP0032044A1 (fr) * 1979-12-21 1981-07-15 Kimberly-Clark Corporation Formage à sec de nappes
EP0093585A2 (fr) * 1982-04-29 1983-11-09 Chicopee Procédé et appareil pour la fabrication, à grande vitesse, de nappes de fibres uniformes
EP0190634A2 (fr) * 1985-01-31 1986-08-13 Kimberly-Clark Corporation Procédé et dispositif pour défibrer une feuille fibreuse
EP0224892A1 (fr) * 1985-12-04 1987-06-10 Fläkt Aktiebolag Procédé et dispositif de fabrication d'une nappe continue
US4701294A (en) * 1986-01-13 1987-10-20 Kimberly-Clark Corporation Eductor airforming apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB892295A (en) * 1959-07-29 1962-03-28 Tmm Research Ltd Improvements relating to the opening of textile fibres and the formation of a web ormat thereof
EP0032044A1 (fr) * 1979-12-21 1981-07-15 Kimberly-Clark Corporation Formage à sec de nappes
EP0093585A2 (fr) * 1982-04-29 1983-11-09 Chicopee Procédé et appareil pour la fabrication, à grande vitesse, de nappes de fibres uniformes
EP0190634A2 (fr) * 1985-01-31 1986-08-13 Kimberly-Clark Corporation Procédé et dispositif pour défibrer une feuille fibreuse
EP0224892A1 (fr) * 1985-12-04 1987-06-10 Fläkt Aktiebolag Procédé et dispositif de fabrication d'une nappe continue
US4701294A (en) * 1986-01-13 1987-10-20 Kimberly-Clark Corporation Eductor airforming apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000004232A1 (fr) * 1998-07-14 2000-01-27 M & J Fibretech A/S Separateur de noeuds
US7134859B1 (en) 1998-07-14 2006-11-14 M&J Fibretech A/S Nits separator
CN105887547A (zh) * 2016-06-28 2016-08-24 湖南科立特环保成套设备有限公司 一种造纸设备及造纸方法
CN105951495A (zh) * 2016-06-28 2016-09-21 湖南科立特环保成套设备有限公司 一种解纤设备及解纤方法
CN106049160A (zh) * 2016-06-28 2016-10-26 湖南科立特环保成套设备有限公司 一种纸页形成器及纸页形成方法

Also Published As

Publication number Publication date
SE8903189D0 (sv) 1989-09-28
SE464475B (sv) 1991-04-29
AU6506090A (en) 1991-04-28
SE8903189A (fr) 1991-03-29

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