EP0328785B1 - Nappe de fibres ayant des points de consolidation comprimés - Google Patents

Nappe de fibres ayant des points de consolidation comprimés Download PDF

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Publication number
EP0328785B1
EP0328785B1 EP88121889A EP88121889A EP0328785B1 EP 0328785 B1 EP0328785 B1 EP 0328785B1 EP 88121889 A EP88121889 A EP 88121889A EP 88121889 A EP88121889 A EP 88121889A EP 0328785 B1 EP0328785 B1 EP 0328785B1
Authority
EP
European Patent Office
Prior art keywords
consolidation points
points
consolidation
fleece
plane
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
EP88121889A
Other languages
German (de)
English (en)
Other versions
EP0328785A2 (fr
EP0328785A3 (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 AT88121889T priority Critical patent/ATE76909T1/de
Publication of EP0328785A2 publication Critical patent/EP0328785A2/fr
Publication of EP0328785A3 publication Critical patent/EP0328785A3/de
Application granted granted Critical
Publication of EP0328785B1 publication Critical patent/EP0328785B1/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

Definitions

  • the invention relates to a nonwoven with densified consolidation points or welding spots or the like and fluffy or loose areas located between them, each adjacent consolidation points being offset in height from one another and the fluffy areas bridging these differences in height of the consolidation points.
  • Such a fleece is known from US-A-3 616 157.
  • the production is to take place between two plates provided with knobs, the knobs of one plate each engaging in the spaces between the knobs of the other plate.
  • this publication also mentions production using rolls having knobs.
  • the nonwoven formed in this way has consolidation points lying at different heights and thus in the starting position a greater thickness than a nonwoven with consolidation points lying in about one level from the beginning. Under pressure, however, the consolidation points can be deformed from their different heights into an essentially coincident height. This is favored in the case of a nonwoven according to US Pat. No. 3,616,157, which is formed by stubs which are offset with respect to one another, in that the consolidation points arranged at different altitudes are not only flat in themselves, but are also laterally offset from one another, so that each The consolidation point has so much spacing and loose fibers compared to the adjacent consolidation points that there is practically no inherent stability and the desired greater overall thickness can be lost by stacking during storage.
  • the fleece mentioned at the outset is characterized in that the welding points or consolidation points each have a continuation or a transition into the fluffy areas and are each approximately cap-shaped.
  • the fluffy areas can run obliquely from the consolidation points on one level to those on the other level.
  • the fluffy areas between the consolidation points at different altitudes are correspondingly longer.
  • the welding points or hardening points can be arranged in two mutually vertically offset, approximately parallel planes, and respectively directly adjacent fastening points of the one plane can have a recess between them, the bottom of which represents a hardening point in the parallel plane. In this way, a fleece of defined thickness is obtained with good stabilization at the consolidation points and still great looseness in between.
  • Half of the number of consolidation points can be in one level and the second half in the other level. This can be achieved practically with two rolls processing the fleece, the knobs of which are offset from one another in such a way that the knobs of one roll fit and engage in the spaces between the knobs of the other roll, but maintain a distance between their flanks within which the Fleece remains unprocessed.
  • Another advantageous feature of the fleece according to the invention can be that the extent or area of the consolidation points is smaller than that in a plane of Fortification points is limited space.
  • the consolidation points in different levels result in good stability, but on the other hand the proportion of fluffy areas is large and thus good absorbency.
  • a fleece 1 is provided with compressed fastening points 2 or welding spots and fluffy or loose areas 3 located between them. 3, the consolidation points 2 and the fluffy areas 3 lie practically in one plane, so that such a fleece is relatively thin after its completion, it is provided in the fleece according to the invention according to FIG. 2 that adjacent to each other Solidification points 2 are offset in height from each other and the fluffy areas 3 bridge the height differences of these consolidation points 2.
  • FIGS. 2 and 3 clearly shows that a fleece 1 of considerable thickness can thereby be produced, which can therefore also have a correspondingly good cushioning or suction effect.
  • the consolidation points 2 each lie on the opposite top sides and thus protect the fleece 1.
  • Fig. 2 makes it clear that the welding points or consolidation points 2 are arranged in two mutually vertically offset, approximately parallel planes. In each case adjacent consolidation points 2 of one level have between them a depression 4, the bottom of which represents or has a consolidation point 2 in the parallel plane. In this way it follows that half of the number of consolidation points 2 in the one level and the second half is on the other level.
  • the extent of the area of the consolidation points 2 is smaller than the space delimited in each plane by such consolidation points 2, and the fluffy areas 3 run obliquely from the consolidation points 2 on one level to those on the other level. In this way, they can absorb much larger deformation paths, so that the softness and suppleness of the fleece 1 according to the invention is considerably increased compared to a conventional fleece according to FIG. 3.
  • 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 2 are located, the loose and fluffy areas 3 are even compressed and possibly increased in their actual thickness, so that their absorbency can even increase somewhat.
  • stiffening or welding points 2 offset from one another in height and the fluffy areas located between them is that this Fleece can be brought into this form in a single operation, namely during its solidification and spot welding, and subsequent embossing of the fleece is avoided, in which there is a risk that fluffy areas in particular could be pressed and buckled and would thus lose their volume.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Artificial Filaments (AREA)

Claims (5)

  1. Non-tissé (1) présentant des points de consolidation (2) ou de soudage ou similaires comprimés et des régions intermédiaires (3) frisées ou lâches, les points de consolidation (2) respectivement voisins étant décalés en hauteur et les régions frisées (3) surmontant ces différences de hauteur des points de consolidation (2),
    caractérisé en ce que les points de soudage ou de consolidation (2) possèdent chacun un prolongement ou transition (3a) dans les régions frisées (3) et sont chacun réalisés approximativement en forme de calotte.
  2. Non-tissé selon la revendication 1, caractérisé en ce que les régions frisées (3) s'étendent en oblique des points de consolidation (2) d'un plan à ceux de l'autre plan.
  3. Non-tissé selon la revendication 1 ou 2, caractérisé en ce que les points de soudage ou de consolidation (2) sont disposés dans deux plans mutuellement décalés en hauteur et approximativement parallèles, et les points de consolidation (2) d'un plan qui sont chaque fois directement juxtaposés possèdent entre eux un renfoncement (4) dont le fond constitue un point de consolidation (2) du plan parallèle.
  4. Non-tissé selon l'une des revendications 1 à 3, caractérisé en ce que la moitié du nombre de points de consolidation (2) se trouve dans un plan et l'autre moitié dans l'autre plan.
  5. Non-tissé selon l'une des revendications 1 à 4, caractérisé en ce que l'étendue ou surface des points de consolidation (2) est inférieure à celle de l'espace intermédiaire circonscrit dans un plan de points de consolidation (2).
EP88121889A 1988-02-13 1988-12-30 Nappe de fibres ayant des points de consolidation comprimés Expired - Lifetime EP0328785B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88121889T ATE76909T1 (de) 1988-02-13 1988-12-30 Vlies mit verdichteten verfestigungstellen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3804610A DE3804610A1 (de) 1988-02-13 1988-02-13 Vlies mit verdichteten verfestigungsstellen
DE3804610 1988-02-13

Publications (3)

Publication Number Publication Date
EP0328785A2 EP0328785A2 (fr) 1989-08-23
EP0328785A3 EP0328785A3 (en) 1990-01-17
EP0328785B1 true EP0328785B1 (fr) 1992-06-03

Family

ID=6347414

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88121889A Expired - Lifetime EP0328785B1 (fr) 1988-02-13 1988-12-30 Nappe de fibres ayant des points de consolidation comprimés

Country Status (3)

Country Link
EP (1) EP0328785B1 (fr)
AT (1) ATE76909T1 (fr)
DE (2) DE3804610A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10103627A1 (de) * 2001-01-27 2002-08-29 Sandler C H Gmbh Vliesstoff mit Struktur

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3616157A (en) * 1969-08-08 1971-10-26 Johnson & Johnson Embossed nonwoven wiping and cleaning materials
GR70771B (fr) * 1978-07-24 1983-03-22 Thprocter & Gamble Company
DE3326281C1 (de) * 1983-07-21 1984-12-20 Robert Casaretto KG, 7889 Grenzach-Wyhlen Walze zum Verfestigen von Vlies oder dgl.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10103627A1 (de) * 2001-01-27 2002-08-29 Sandler C H Gmbh Vliesstoff mit Struktur
DE10103627B4 (de) * 2001-01-27 2007-11-15 Sandler Ag Vliesstoff mit Struktur

Also Published As

Publication number Publication date
ATE76909T1 (de) 1992-06-15
EP0328785A2 (fr) 1989-08-23
DE3804610A1 (de) 1989-08-24
DE3871769D1 (de) 1992-07-09
DE3804610C2 (fr) 1991-11-14
EP0328785A3 (en) 1990-01-17

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