EP0331817A2 - 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
EP0331817A2
EP0331817A2 EP88121888A EP88121888A EP0331817A2 EP 0331817 A2 EP0331817 A2 EP 0331817A2 EP 88121888 A EP88121888 A EP 88121888A EP 88121888 A EP88121888 A EP 88121888A EP 0331817 A2 EP0331817 A2 EP 0331817A2
Authority
EP
European Patent Office
Prior art keywords
knobs
roller
rollers
arrangement according
fleece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88121888A
Other languages
German (de)
English (en)
Other versions
EP0331817B1 (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 fleece or the like. between them by means of heat and / or by means of solvents, the rollers on their surface being welded or weld line engraved with the roller surface following the weld spot surfaces on the top of individual knobs and the knobs standing apart from each other with respect to the actual roller surface.
  • roller arrangements are known in which one roller has raised knobs while the counter roller has a smooth surface.
  • An example of such a roller arrangement is known from DE-PS 33 26 281.
  • Such a roller arrangement has the advantage that the production of the smooth roller is simpler and cheaper, but between the knobs there are still relatively large effects on the part of the fleece that is not to be consolidated or welded.
  • Roller arrangements have also become known in which the two co-operating rollers have knobs which overlap their upper surfaces in whole or in part in order to achieve the most specific possible strengthening of the nonwoven. Under certain circumstances, this should also mean different Patterning effects can be achieved, as is known from DE-AS 25 18 531 and DE-AS 25 18 532. In practice, however, it has been shown that such a precise arrangement of such roller arrangements is necessary due to the relatively small knob tops and nevertheless the theoretical precision of covering the knobs is difficult to achieve due to the elastic deformations of the rollers that cannot be avoided. It can happen that some nub surfaces are not sufficiently close to each other, especially with very large rolls, because they can dodge due to gravity and also the rolling pressure, especially in their central area. This results in irregularities at the consolidation points.
  • the invention has for its object to provide a roller assembly of the type mentioned, 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 between the consolidation points fluffy and should remain loose, i.e. should not be additionally acted on by the counter roller.
  • the nonwoven between a knob and a smooth surface of a roller is thus pressed and consolidated at the respective consolidation point, but this takes place at different elevation points at the different consolidation points of the nonwoven, since the one consolidation point on the surface of the one roller is pressed by the knob of the counter-roller, while the adjacent consolidation point is pressed by a knob of this counter-roller on the smooth surface of the former roller.
  • the transition areas between the consolidation points remain correspondingly fluffy since they are not subjected to compression in the spaces between the knobs.
  • this arrangement and solution make it possible to take into account possible deflections of the rollers by appropriate dimensions of the knobs and above all their heights.
  • the knobs engage in each other, only smaller deformation forces are to be expected on the rollers. Since the consolidation points each come to lie in two different planes, the distance between which corresponds approximately to the distance between the smooth surfaces of the two rollers or approximately to the height of the knobs, the overall result is a fleece of great softness and fluffiness, so that it also retains good absorbency, for example. Nevertheless, the individual consolidation points can be formed with the usual strength and durability.
  • a distance corresponding at least approximately to the thickness of the fleece can be provided, which is greater than a joint or a distance between the top of the one knob and the smooth surface of the counter-roller is.
  • the fleece between the flanks of the knobs is thus only bent out in order to follow their course to the next consolidation point, but is not impaired in terms of its thickness and the loose position of the individual fibers.
  • flanks of the knobs run obliquely towards their base in the sense of widening the knobs. It is expedient for a uniform spacing between the interlocking knobs of the two rollers if the helix angles of the intermeshing knobs of the two rollers are the same and the flanks of the knobs of one roller are approximately parallel to the flanks of the knobs adjacent to them in the respective engagement area the other roller.
  • the flank angle of the knobs with respect to a perpendicular to the roll surface can e.g. be an acute angle of at least 15 ° to 45 °, preferably of about 30 °.
  • a preferred embodiment with good results at the consolidation points can consist in that the knobs are of approximately frustoconical shape and are round, oval or rectangular, in particular square, at their base and, if appropriate, also on 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 greater 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 locations, but remains fluffy and loose, the rollers 3 and 4 have a weld spot or weld line engraving on their surfaces with the roller surface following weld 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 intervene in use without touching on their flanks 13, and that the top 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 is 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. It is thereby achieved in a desired manner that at the predetermined locations on the tops 5 and 6 of the knobs the stiffened locations 11 of the nonwoven are offset in height relative to one another, but the area 12 of the nonwoven 1 in between remains undisturbed and is practically not rolled and changed .
  • 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 be frustoconical or truncated pyramid, FIGS. 3 and 6 showing that they are on their base 7a and 8a and, if appropriate, also on their upper knobs 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 at 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 lie, 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 is deformed in the direction of bevel of these flanks in such a way 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)
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
DE3804611A DE3804611A1 (de) 1988-02-13 1988-02-13 Walzenanordnung zum verfestigen von vlies od.dgl.
DE3804611 1988-02-13

Publications (3)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0559969A1 (fr) * 1992-03-06 1993-09-15 Sommer S.A. Produit textile gaufre, procédé de préparation de celui-ci et dispositifs à cet effet

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US5383778A (en) * 1990-09-04 1995-01-24 James River Corporation Of Virginia Strength control embossing apparatus
US5269983A (en) * 1991-02-04 1993-12-14 James River Corporation Of Virginia Rubber-to-steel mated embossing
US5356364A (en) * 1991-02-22 1994-10-18 Kimberly-Clark Corporation Method for embossing webs
AU646746B2 (en) * 1991-02-22 1994-03-03 Kimberly-Clark Worldwide, Inc. Method for embossing webs
FR2700496B1 (fr) * 1993-01-15 1995-02-17 Kaysersberg Sa Procédé de gaufrage d'une feuille à un ou plusieurs plis, feuille de papier gaufré.
USD436738S1 (en) 1993-03-29 2001-01-30 Fort James Corporation Embossed paper product
US5458950A (en) * 1993-03-29 1995-10-17 The James River Corporation Paper towel with dual level diagonal infundibulate striae of slitted elongate hexagonal bosses
DE19547319A1 (de) * 1995-12-19 1997-06-26 Hcd Gmbh Verfahren zur Herstellung eines strukturierten, voluminösen Vlieses
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 Eduard Küsters, Maschinenfabrik, GmbH & Co. KG, 47805 Krefeld Kalander zum Behandeln einer Bahn
AU6039698A (en) * 1998-01-23 1999-08-09 Procter & Gamble Company, The Method for making a stable nonwoven web having enhanced extensibility in multiple direction
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
DE10156734A1 (de) * 2001-11-19 2003-05-28 Truetzschler Gmbh & Co Kg Vorrichtung zum Verfestigen eines förderbaren Faservlieses
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
US20050247397A1 (en) * 2003-09-29 2005-11-10 The Procter & Gamble Company Process for producing embossed products
US7374638B2 (en) * 2003-09-29 2008-05-20 The Procter & Gamble Company High bulk strong absorbent single-ply tissue-towel paper product
US7314663B2 (en) * 2003-09-29 2008-01-01 The Procter + Gamble Company Embossed multi-ply fibrous structure product and process for making same
CN101124363A (zh) * 2004-02-17 2008-02-13 宝洁公司 深嵌套压花的纸制品
US20050247416A1 (en) * 2004-05-06 2005-11-10 Forry Mark E Patterned fibrous structures
US7413629B2 (en) * 2004-05-21 2008-08-19 The Procter & Gamble Company Process for producing deep-nested embossed paper products
US7435313B2 (en) * 2004-05-21 2008-10-14 The Procter & Gamble Company Process for producing deep-nested embossed paper products
US7968025B2 (en) * 2004-07-29 2011-06-28 Ahlstrom Corporation Method for manufacturing a particularly soft and three-dimensional nonwoven and nonwoven thus obtained
US7669250B2 (en) 2004-10-14 2010-03-02 Nike, Inc. Article of apparel incorporating an embossed material
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
US11020932B2 (en) 2017-06-30 2021-06-01 The Procter & Gamble Company Tip bonded formed laminates of film

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US3616157A (en) * 1969-08-08 1971-10-26 Johnson & Johnson Embossed nonwoven wiping and cleaning materials

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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.

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
US3051608A (en) * 1958-04-18 1962-08-28 Jack C Gordon Resilient article and method of manufacture thereof
US3616157A (en) * 1969-08-08 1971-10-26 Johnson & Johnson Embossed nonwoven wiping and cleaning materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0559969A1 (fr) * 1992-03-06 1993-09-15 Sommer S.A. Produit textile gaufre, procédé de préparation de celui-ci et dispositifs à cet effet

Also Published As

Publication number Publication date
CA1276440C (fr) 1990-11-20
DE3871775D1 (de) 1992-07-09
DE3804611C2 (fr) 1992-01-23
US4913911A (en) 1990-04-03
EP0331817B1 (fr) 1992-06-03
EP0331817A3 (en) 1990-05-16
DE3804611A1 (de) 1989-08-24
ATE76910T1 (de) 1992-06-15

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