EP0331817B1 - Agencement de cylindres pour la consolidation de nappes de fibres - Google Patents

Agencement de cylindres pour la consolidation de nappes de fibres Download PDF

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Publication number
EP0331817B1
EP0331817B1 EP88121888A EP88121888A EP0331817B1 EP 0331817 B1 EP0331817 B1 EP 0331817B1 EP 88121888 A EP88121888 A EP 88121888A EP 88121888 A EP88121888 A EP 88121888A EP 0331817 B1 EP0331817 B1 EP 0331817B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
knops
knobs
cylinders
flanks
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.)
Expired - Lifetime
Application number
EP88121888A
Other languages
German (de)
English (en)
Other versions
EP0331817A2 (fr
EP0331817A3 (en
Inventor
Eberhard Wildt
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.)
Robert Casaretto Walzengravieranstalt und Walzenfabrik & Co KG GmbH
Original Assignee
Robert Casaretto Walzengravieranstalt und Walzenfabrik & Co KG GmbH
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 Robert Casaretto Walzengravieranstalt und Walzenfabrik & Co KG GmbH filed Critical Robert Casaretto Walzengravieranstalt und Walzenfabrik & Co KG GmbH
Priority to AT88121888T priority Critical patent/ATE76910T1/de
Publication of EP0331817A2 publication Critical patent/EP0331817A2/fr
Publication of EP0331817A3 publication Critical patent/EP0331817A3/de
Application granted granted Critical
Publication of EP0331817B1 publication Critical patent/EP0331817B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D04H1/40—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
    • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1007—Running or continuous length work
    • Y10T156/1023—Surface deformation only [e.g., embossing]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1039—Surface deformation only of sandwich or lamina [e.g., embossed panels]

Definitions

  • the invention relates to a roller arrangement with two rollers oriented in parallel with respect to their axis of rotation for strengthening nonwoven or the like between them by means of heat and / or by means of solvents, the rollers on their surface being engraved with a weld spot or weld line with the weld spot surfaces following the roller surface on the top of individual knobs and the knobs stand up at a distance from each other relative to the actual roll surface and the knobs of one roll fit between those of the other without contact and in each case the top of the knobs of the rolls up to close to or up to the smooth surface of the counter roll at the foot of their knobs between them pass.
  • Such a roller arrangement is known from US Pat. No. 3,616,157, in addition to a plate arrangement.
  • the fleece is solidified exclusively on the respective surface of a knob and only in the exceptional case of the embodiment according to FIG. 17 in the web areas connecting these.
  • the rows of the knobs of the one roller are laterally offset from the rows of the knobs of the other roller.
  • the welding points and welding points of the different levels are so far apart from one another that there is a risk that they will be deformed into a common level during stacking and storage.
  • the purpose of achieving the thickest, fluffy nonwoven that is nevertheless highly stable is not achieved.
  • the stability can only be achieved by the additional measure according to FIG. 17 can be achieved that bonding webs connect the welding points located in different planes, but then some of the fluffy areas must also be solidified.
  • the invention is therefore based on the object of providing a roller arrangement of the type mentioned at the outset, with which the respective consolidation points are met with great precision even with very large rollers and a precise processing of a nonwoven is possible, the end result nevertheless being between the consolidation points should remain fluffy and loose, whereby additional strengthening of the welded area and good stability of the processed fleece should be achieved.
  • the knobs of one roller intervene between those of the other with their flanks adjacent to one another, wherein between the flanks of the knobs of one roller and those of the knobs of the other roller in the engaged position, at least approximately the thickness of the fleece Appropriate distance is provided, which is greater than a joint or a distance between the top of the one knob against the smooth surface of the counter-roller, that the flanks of the knobs run obliquely towards the base in the sense of a widening of the knobs and that the helix angle of the one another Gripping knobs of the two rollers are each the same and the flanks of the knobs of one roller run approximately parallel to the respective flanks of the knobs of the other roller in the respective engagement area.
  • this arrangement makes it possible to take into account possible deflections of the rollers by appropriate dimensions of the knobs and above all their heights. Since the knobs engage each other, only slight deformation forces are to be expected on the rollers. Since the consolidation points come to lie in two different planes, in spite of the additional consolidation mentioned, a fleece of great softness and fluffiness results that has good absorbency. This is favored by the uniform spacing of the sloping flanks of the knobs, because the transition and thus the deformation of the fleece from one consolidation point in one plane to an adjacent consolidation point in another plane is not too strong.
  • the flank angle of the knobs with respect to a perpendicular to the roller surface can be an acute angle of at least 15 ° to 45 °, preferably of about 20 ° or 30 °.
  • a preferred embodiment with good results at the consolidation points can consist in that the knobs are approximately frustoconical and are round, oval or rectangular, in particular square, at their base and possibly also at their upper knob surface. This not only results in knobs that are relatively easy to produce, but in this way the knobs can also be distributed very regularly on the roller surface and also allow good embossing of the consolidation points on the respective fleece to be created.
  • a diagonal can be arranged in the circumferential direction of the rollers through the layout of the knobs.
  • a modified roller arrangement can be characterized in that for imitating a fabric structure on the Surface of the fleece the surfaces of the knobs are elongated and are of equal or unequal length and may have a rounded, square or oval outline, the larger length extension on one roller being perpendicular to that on the other roller.
  • the larger length extension on one roller can be oriented parallel to its axis and on the other roller in the circumferential direction. Especially when using surface areas of different sizes, it is also possible to imitate tissue structures that have apparent irregularities.
  • the diagonals of square knobs or the greatest length extension of elongated knob surfaces can be oriented obliquely to the axial direction and obliquely to the circumference of the roller.
  • the overall result is a roller surface, in which the individual consolidation points of a nonwoven between protruding knobs and a smooth surface of a counter roller can be pressed and consolidated, but the areas of the nonwoven located between them are not rolled. Nevertheless, an above-average effort is avoided, as it would be required if the relatively small and numerous nub surfaces of both rollers always had to meet exactly or should even be slightly offset from one another, which would hardly be feasible with large rollers.
  • a roller arrangement for solidifying a nonwoven 1 has two rollers 3 and 4 oriented parallel with respect to its axes of rotation 2, between which the nonwoven 1 is to be solidified at individual points or locations by means of heat and / or solvents. So that the fleece 1 can be solidified at fastening points or points, but remains fluffy and loose, the rollers 3 and 4 have a welding spot or weld line engraving on their surfaces with the roller surface following welding spot surfaces 5 and 6 on the top of individual knobs 7 and 8.
  • the knobs 7 and 8 are each high with respect to the actual roller surface 9 and 10. It can be seen above all in FIGS.
  • knobs 7 of one roller 3 fit between the knobs 8 of the other roller 4 and engage in use without touching on their flanks 13, and that the top side in each case 5 and 6 of the knobs 7 and 8 of the rollers 3 and 4 up to close to or up to the smooth surface 9 and 10 of the respective counter-roller at the foot of the knobs between them. This becomes particularly clear in FIG. 2.
  • the fleece 1 is, as shown in Fig. 2, pressed and consolidated between the knob surfaces 5 and 6 and the closely spaced surfaces 9 and 10 of the rollers 3 and 4, these consolidation points 11 due to this special arrangement and Interlocking of the knobs 7 and 8 according to FIGS. 5 and 8 come to lie in two parallel planes, while the areas 12 of the nonwoven located between them remain loose and soft.
  • a distance is provided, which is preferably at least approximately the thickness of the Fleece 1 corresponds. This distance is greater than a joint or a distance between the top 5 or 6 of the respective knob 7 or 8 relative to the smooth surface 9 or 10 of the respective counter roller.
  • the flanks 13 of the knobs 7 and 8 run obliquely towards their base 7a and 8a in the sense of widening the knobs 7 and 8.
  • the helix angles of the interlocking knobs 7 and 8 of the two rollers 3 and 4 are each the same according to FIGS. 2, 4 and 7 and in the respective engagement area the flanks 13 of the knobs 7 and 8 each run approximately parallel to one another.
  • the flank angle of the knobs 7 and 8 with respect to a perpendicular to the roller surface 9 or 10 is in each case an acute angle of 15 to 45 °, FIG. 2 such an angle of approximately 20 °, FIG. 4 such an angle of approximately over 30 ° , namely approximately 35 ° and FIG. 7 shows such an angle of somewhat less than 30 °, namely approximately 25 °.
  • the result of this is that there are options here depending on the requirements for the nonwoven and possibly also depending on the height of the knobs.
  • the knobs 7 and 8 can each preferably have the shape of a truncated cone or pyramid, with FIGS. 3 and 6 showing that they are on their base 7a and 8a and possibly also on their upper knob surface can be rectangular or square.
  • Fig. 6 also shows that one diagonal can be arranged in the circumferential direction by the layout of the knobs and thus the other in the longitudinal direction of the rollers.
  • the solution according to FIGS. 3 and 4 is particularly suitable, in which the surfaces 5 and 6 of the knobs 7 and 8 are elongated and have the same length. However, they could also be of unequal length for the imitation of a coarsely structured fabric.
  • knob surfaces 5 and 6 could have a rounded, square or oval outline, the larger length of these knob surfaces 5 and 6 on one roller being oriented at right angles to that on the other roller in order to simulate the crossing warp and weft threads of a fabric.
  • Fig. 3 an arrangement is shown in which the knob surfaces 5 and 6 are rectangles and the larger length extension on one roller is oriented parallel to its axis and on the other roller in the circumferential direction.
  • the diagonals of the knobs 7 and 8 shown there in plan, or also the greatest length extension of the elongated knobs surfaces 7 and 8 according to FIG. 3, could be oriented obliquely to the axial direction and obliquely to the circumference of the rollers be.
  • the consolidation points 11 thereby also reach two parallel planes, so that such a fleece already has a certain thickness, which benefits its softness and suppleness. This is promoted by the fact that the transition regions 12 of the nonwoven located between the consolidation points 11 are practically not loaded during its processing with the two rollers 3 and 4.
  • Another advantage of this arrangement and shape of the fleece is that at a pressure approximately perpendicular to the planes in which the consolidation points 11 are located, the loose and fluffy areas 12 are even compressed and possibly enlarged in their actual thickness, so that their absorbency can even increase somewhat.
  • the top 5 of the knobs 7 and the top 6 of the knobs 8 of the rollers 3 and 4 each close to or up to the smooth surface 9 or 10 of the respective counter-roller at the foot of their knobs between them and further characterized in that between the flanks 13 of the knobs 7 of the one roller 3 and those of the knobs 8 of the another roller 4 in the engaged position a distance is provided which is greater than a joint which occurs with an interposed fleece between the top 5 or 6 of the knobs 7 or 8 with respect to the smooth surface 9 or 10 of the respective counter-roller, can at these limited points the desired high pressure is generated, which, in cooperation with the heat of the heated rolls, brings about a desired welding to welding points at these points.
  • the fleece In the area of the larger flank spacings, however, the fleece remains fluffy, but at the same time it is deformed in the direction of bevel of these flanks so that no embossing is required in the end product being produced, but this end product is nevertheless due to the loose fibers and their oblique course and the two parallel ones Flat spot welds has a fluffy and thick volume.
  • a relatively thick, fluffy end product can thus be formed from the starting product without the need for additional embossing after solidification by welding points.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Woven Fabrics (AREA)

Claims (7)

  1. Ensemble de cylindres comprenant deux cylindres (3,4) orientés avec leurs axes de rotation (2) parallèles et destinés à consolider entre eux un non-tissé (1) ou similaire à l'aide de chaleur et/ou de solvants, les cylindres (3,4) possédant sur leur surface une gravure de points ou lignes de soudage avec des faces de points de soudage (5,6) suivant la surface du cylindre sur le côté supérieur de nopes individuelles (7,8), les nopes (7,8) dépassant à distance entre elles de la surface proprement dite du cylindre, les nopes (7,8) d'un cylindre (3) s'adaptant sans contact entre celles de l'autre cylindre, et le côté supérieur (5,6) des nopes (7,8) des cylindres (3,4) s'étendant chaque fois jusqu'à proximité de ou jusqu'à la surface lisse (9,10) du cylindre antagoniste, à la base de ses nopes et entre ces dernières,
    caractérisé en ce que les nopes (7,8) d'un cylindre (3) s'engagent entre celles de l'autre cylindre par leurs flancs respectifs voisins, un écartement correspondant au moins approximativement à l'épaisseur du non-tissé (1) étant prévu en position d'engagement entre les flancs (13) des nopes (7,8) d'un cylindre (3) et ceux des nopes (7,8) de l'autre cylindre (4), écartement qui est supérieur à une fente de séparation ou une distance entre le côté supérieur (5,6) d'une nope (7,8) et la surface lisse (9,10) du cylindre antagoniste, en ce que les flancs (13) des nopes (7,8) s'étendent en oblique dans le sens d'un élargissement des nopes (7,8) en direction de leur base (7a,8a), et en ce que les angles d'obliquité des nopes (7,8) en engagement mutuel des deux cylindres (3,4) sont chaque fois identiques et, dans la région d'engagement respective, les flancs (13) des nopes (7,8) d'un cylindre s'étendent approximativement parallèlement aux flancs des nopes de l'autre cylindre qui leur sont respectivement voisins.
  2. Ensemble de cylindres selon la revendication 1, caractérisé en ce que l'angle des flancs des nopes (7,8) par rapport à une perpendiculaire à la surface (9,10) du cylindre, est un angle aigu d'au moins 15° à 45°, de préférence d'environ 20° ou 30°.
  3. Ensemble de cylindres selon la revendication 1 ou 2, caractérisé en ce que les nopes (7,8) sont réalisées approximativement en forme de cônes tronqués ou de pyramides tronquées et sont rondes, ovales ou rectangulaires, notamment carrées, sur leur base et éventuellement aussi sur leur surface supérieure.
  4. Ensemble de cylindres selon l'une des revendications 1 à 3, caractérisé en ce qu'une diagonale tracée dans la projection horizontale des nopes (7,8) est disposée dans la direction circonférentielle des cylindres (3,4).
  5. Ensemble de cylindres selon l'une des revendications 1 à 4, caractérisé en ce qu'afin d'imiter une structure de tissu sur la surface du non-tissé (1), les surfaces (5,6) des nopes (7,8) sont oblongues avec longueurs identiques ou différentes et possèdent éventuellement un contour arrondi, circulaire, angulaire ou ovale, la dimension longitudinale supérieure sur un cylindre étant orientée perpendiculairement à celle sur l'autre cylindre.
  6. Ensemble de cylindres selon la revendication 5, caractérisé en ce que la dimension longitudinale supérieure des surfaces (5,6) des nopes (7,8) d'un cylindre est orientée parallèlement à l'axe (2) du cylindre, et dans la direction circonférentielle sur l'autre cylindre.
  7. Ensemble de cylindres selon l'une des revendications 1 à 6, caractérisé en ce que les diagonales de nopes carrées (7,8) ou la dimension longitudinale supérieure de surfaces de nope oblongues sont orientées en oblique par rapport à la direction axiale et en oblique par rapport à la circonférence du cylindre.
EP88121888A 1988-02-13 1988-12-30 Agencement de cylindres pour la consolidation de nappes de fibres Expired - Lifetime EP0331817B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88121888T ATE76910T1 (de) 1988-02-13 1988-12-30 Walzenanordnung zum verfestigen von faservliesen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3804611 1988-02-13
DE3804611A DE3804611A1 (de) 1988-02-13 1988-02-13 Walzenanordnung zum verfestigen von vlies od.dgl.

Publications (3)

Publication Number Publication Date
EP0331817A2 EP0331817A2 (fr) 1989-09-13
EP0331817A3 EP0331817A3 (en) 1990-05-16
EP0331817B1 true EP0331817B1 (fr) 1992-06-03

Family

ID=6347415

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88121888A Expired - Lifetime EP0331817B1 (fr) 1988-02-13 1988-12-30 Agencement de cylindres pour la consolidation de nappes de fibres

Country Status (5)

Country Link
US (1) US4913911A (fr)
EP (1) EP0331817B1 (fr)
AT (1) ATE76910T1 (fr)
CA (1) CA1276440C (fr)
DE (2) DE3804611A1 (fr)

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USD436738S1 (en) 1993-03-29 2001-01-30 Fort James Corporation Embossed paper product
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DE19725749B4 (de) * 1995-12-19 2004-04-22 Advanced Design Concepts Gmbh Prägeverfahren zur Herstellung eines strukturierten, voluminösen Vlieses
US5954625A (en) * 1997-06-04 1999-09-21 Industrial Engraving & Manufacturing, Corp. Method and apparatus for embossing continuous paper webs
DE29720192U1 (de) 1997-11-14 1999-03-25 Kuesters Eduard Maschf Kalander zum Behandeln einer Bahn
DE69805658T2 (de) * 1998-01-23 2002-10-17 Procter & Gamble Verfahren zur herstellung eines dehnbaren stabilen vliesstoffes
US6726870B1 (en) * 1998-01-23 2004-04-27 The Procter & Gamble Company Method for making a bulked web
USD430734S (en) * 1998-08-07 2000-09-12 Fort James Corporation Pattern for an embossed paper product
DE19856223B4 (de) * 1998-12-04 2004-05-13 Advanced Design Concepts Gmbh Verfahren und Vorrichtung zur Herstellung einer strukturierten, voluminösen Vliesbahn oder Folie
USD459897S1 (en) 2000-07-25 2002-07-09 Fort James Corporation Paper towel
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US6846172B2 (en) * 2002-06-07 2005-01-25 The Procter & Gamble Company Embossing apparatus
US7115089B2 (en) * 2003-02-24 2006-10-03 Rutgers, The State University Of New Jersey Technology for continuous folding of sheet materials
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US7374638B2 (en) * 2003-09-29 2008-05-20 The Procter & Gamble Company High bulk strong absorbent single-ply tissue-towel paper product
US20050247397A1 (en) * 2003-09-29 2005-11-10 The Procter & Gamble Company Process for producing embossed products
BRPI0507711A (pt) * 2004-02-17 2007-07-03 Procter & Gamble produtos de papel gofrado com aninhamento profundo
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US7435313B2 (en) * 2004-05-21 2008-10-14 The Procter & Gamble Company Process for producing deep-nested embossed paper products
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US20060141217A1 (en) * 2004-12-29 2006-06-29 Ellis Clifford J Deep patterned nonwoven fabrics and method of making them
US7597777B2 (en) 2005-09-09 2009-10-06 The Procter & Gamble Company Process for high engagement embossing on substrate having non-uniform stretch characteristics
US8336117B2 (en) * 2005-10-19 2012-12-25 Nike, Inc. Article of apparel with material elements having a reversible structure
US20070096366A1 (en) * 2005-11-01 2007-05-03 Schneider Josef S Continuous 3-D fiber network formation
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DE3326281C1 (de) * 1983-07-21 1984-12-20 Robert Casaretto KG, 7889 Grenzach-Wyhlen Walze zum Verfestigen von Vlies oder dgl.

Also Published As

Publication number Publication date
EP0331817A2 (fr) 1989-09-13
DE3804611A1 (de) 1989-08-24
DE3871775D1 (de) 1992-07-09
CA1276440C (fr) 1990-11-20
ATE76910T1 (de) 1992-06-15
US4913911A (en) 1990-04-03
DE3804611C2 (fr) 1992-01-23
EP0331817A3 (en) 1990-05-16

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