EP0765215B1 - Absorbent paper multilayered sheet and method of manufacture - Google Patents

Absorbent paper multilayered sheet and method of manufacture Download PDF

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Publication number
EP0765215B1
EP0765215B1 EP95923389A EP95923389A EP0765215B1 EP 0765215 B1 EP0765215 B1 EP 0765215B1 EP 95923389 A EP95923389 A EP 95923389A EP 95923389 A EP95923389 A EP 95923389A EP 0765215 B1 EP0765215 B1 EP 0765215B1
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EP
European Patent Office
Prior art keywords
protuberances
sheet
height
layer
protrusions
Prior art date
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Revoked
Application number
EP95923389A
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German (de)
French (fr)
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EP0765215A1 (en
Inventor
Rémy Ruppel
Pierre Laurent
Jo[L Hungler
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Essity Operations France SAS
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Fort James France
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/07—Embossing, i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profiles
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP 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
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply
    • D21H27/40—Multi-ply at least one of the sheets being non-planar, e.g. crêped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0707—Embossing by tools working continuously
    • B31F2201/0715—The tools being rollers
    • B31F2201/0723—Characteristics of the rollers
    • B31F2201/0733—Pattern
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0707—Embossing by tools working continuously
    • B31F2201/0715—The tools being rollers
    • B31F2201/0723—Characteristics of the rollers
    • B31F2201/0738—Cross sectional profile of the embossments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0756—Characteristics of the incoming material, e.g. creped, embossed, corrugated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0758—Characteristics of the embossed product
    • B31F2201/0761—Multi-layered
    • B31F2201/0764—Multi-layered the layers being nested
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0784—Auxiliary operations
    • B31F2201/0787—Applying adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0784—Auxiliary operations
    • B31F2201/0792—Printing
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
    • Y10T428/24446—Wrinkled, creased, crinkled or creped
    • Y10T428/24455—Paper
    • Y10T428/24463—Plural paper components
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24562—Interlaminar spaces
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24612—Composite web or sheet
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24826—Spot bonds connect components
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree

Definitions

  • the present invention relates to the field of absorbent papers for use sanitary and domestic, and targets a multilayer sheet for products such as toilet paper, handkerchiefs, towels, or wiping cloths, as well as its method of manufacturing
  • US Pat. No. 3,867,225 for example, describes a process for producing such a product consisting in embossing two sheets of cellulose wadding separately according to a pattern consisting of projections or protuberances at a rate of 2 to 30 per cm 2 , applying an adhesive substance on the top of part of these projections, to bring the two sheets together by the embossed faces, that is to say having the protuberances, by arranging the protuberances of one between the protuberances of the other, and glue the vertices of one sheet with the recessed areas of the other sheet.
  • voids formed between the two sheets a structure is thus produced having an improved absorption capacity compared to absorbent sheets not thus transformed.
  • US Patent 4320162 describes a multilayer sheet structure consisting of two embossed sheets. Each sheet includes a wide pattern of firsts relatively deep embossed protrusions surrounded by a tighter pattern of second protrusions embossed less deeply. The two sheets are associated, according to a first example, by the vertices of the first protrusions, and, according to a second embodiment, by the vertices of the first projections for one leaf and the vertices of the second projections for the other leaf.
  • Such a structure in theory offers a greater internal vacuum volume than in the layout presented in patent US 3867225 since the two sheets are joined by the top protrusions. However, it is less resistant to crushing; there is indeed a sagging of the projections already under low contact pressure.
  • the present invention provides a multilayer structure combining the advantages of the two methods mentioned above without presenting the disadvantages, as well as its manufacturing process
  • the subject of the invention is a multilayer absorbent sheet with at least two layers each consisting of at least one embossed sheet of creped absorbent paper weighing between 10 and 40 g / m 2 per sheet, with an external face forming the external face of the multilayer sheet and an internal face, the internal face of the first layer comprising first and second protrusions, and the internal face of the second layer comprising third overlapping protuberances between the protuberances of the first layer, the two layers being linked together by at least part of the tops of the protrusions of a layer made integral by bonding to the other layer between two protrusions.
  • This multilayer sheet is characterized in that said connection is provided by the first protuberances of the first layer, said second protuberances having a lower height than the first and their top having received no adhesive substance.
  • a sheet is obtained whose rigidity is lower than that of a sheet having the same number of protrusions also nested, but where these are all the same height.
  • the height of the second protrusions is greater than 50% of the height of the first protrusions. In effect, optimal resistance to crushing is obtained if the second protrusions are substantially at the same level as the surface of the adjacent layer.
  • the first protrusions are distributed in a spaced pattern, at least two second protrusions being arranged between two successive first protrusions.
  • the first protrusions will advantageously reproduce a drawing combining a plurality of lines pleasing to the eye, that of a flower for example.
  • These drawings will be surrounded by points constituted by the second protrusions and each occupying a small area, the density of these points may be relatively high, up to 80 or 100 points per cm 2 .
  • the height of the third protrusions is less than or equal to the height of the first protrusions. To to ensure satisfactory crush resistance it is desirable that the height of these protuberances is at least half that of the first protuberances.
  • the vertices of the third protrusions form a bond, by gluing, with the first layer.
  • the present invention also relates to a method making it possible to manufacture the multilayer sheet presented above.
  • the method for making a multilayer sheet consisting of embossing a first sheet of paper, itself single or multiple, on a first cylinder comprising on its surface first and second elements in relief and a second sheet, which can also be simple or multiple, on a second cylinder comprising third elements in relief, with apply glue to at least part of the tops of the protuberances on one of the sheets, bring the two sheets together so that the protrusions of the first leaf overlap between the protrusions of the second leaf, and that the glued tops adhere to the other sheet between two protrusions, is characterized in that the first elements have a height H, measured in relation to the surface of the cylinder, greater than the height h of the second elements, the difference between the heights H and h being greater than 0.05 mm: H-h> 0.05 mm and what, on the first sheet, said deposit glue is only made on the first protrusions.
  • the difference between said heights H and h is less than 50% of H, in particular for H between 1 and 2 mm, and especially when the height of the elements is between 1.2 and 1.5 mm.
  • the third elements in relief, on the second cylinder have a height H 'less than or equal to the height H: H' ⁇ H
  • the second cylinder has fourth elements in relief, the height h 'of the fourth elements being less than the height H 'of the third elements.
  • H 'and h' are linked by the relation: 0.5 x H ' ⁇ h' ⁇ H'- 0.05.
  • an adhesive substance is applied both on the first and third protrusions.
  • This installation comprises two embossing units, each consisting of a elastomer-coated cylinder, 1 and 3 respectively, cooperating with a cylinder engraved steel, 2 and 4 respectively. Cylinders 2 and 4 are engraved so that present on the surface elements in relief or spikes, distributed regularly as well machine direction than cross direction.
  • the cylinder is pressed against cylinder 2 by suitable means not shown of so that the sheet, passing between them, is caused to deform and marry the relief of the engraving of the cylinder 2.
  • the sheet is then driven by the latter.
  • a sizing device 8 known per se, deposits with an applicator cylinder a adhesive substance 9 on the top of the raised elements or protuberances of the sheet 5.
  • Cylinder 4 is arranged at a slight distance from cylinder 2 so that the sheet can come off the surface of cylinder 4. It comes into contact with the first leaf, over a portion of its course where it is still applied against the surface of cylinder 2.
  • the two cylinders are driven to synchronous and opposite speeds, they are set in rotation relative to each other so that the protrusions of the sheet 6 are housed between the protrusions of sheet 5.
  • a cylinder 7, said matchmaker, with smooth surface, rotated against the cylinder 2 ensures the union of the two sheets by pressing sheet 6 by its zones in indentation - between two adjacent protuberances - against the vertices provided with glue 9 of the protrusions of the sheet 5.
  • the multilayer sheet obtained is then cut into sheets of small width and put in rolls, of toilet paper for example.
  • the cylinder has first and second elements in relief of different heights.
  • An enlarged, partial and perspective view of the surface of the cylinder 2 is reproduced in FIG. 1.
  • the first elements in relief 10, on which the first protuberances form the first sheet have a height H, and are distributed on the surface of the cylinder according to a regular pattern or not.
  • the reliefs are obtained by engraving or by machining, the height is measured from the top of the element which is substantially planar in general, to the bottom of the engraving. If the elements are reported, we proceed from the same way by difference in heights, the reference being the top of the highest elements.
  • first elements can be of any shape. They are advantageously constituted so as to form the imprint of a linear design, for example that of a flower such as that shown in FIG. 2.
  • the first elements 10 are relatively distant from each other. This spacing will depend in particular on the surface occupied by the drawing on the sheet. For example, for a drawing falling within an area of 100 mm 2 , the distance between the first two elements will be 15 mm.
  • the height H is between 1 and 2 mm.
  • a particularly suitable value, for the production of toilet paper from cellulose wadding weighing between 10 and 40 g / m 2 is between 1.2 and 1.5 mm, for example 1.3 mm .
  • the depth of the embossing and the height of the resulting protrusions on the sheet will depend on the hardness of the coating of the cylinder 1 and the pressure it exerts on the cylinder 2.
  • second relief elements 12 Between these first elements, relatively distant from each other, are arranged in second relief elements 12 whose height h is lower. In practical, the height h is measured by difference with H.
  • the second elements in the structure of the multilayer sheet must fulfill, as the first elements, the function of strut, to contribute to compressive strength and give volume; however they must be sufficiently set back from these so that the sizing device only apply the adhesive substance to the tops of the first protrusions of the first sheet.
  • the height h of the second elements will be at least 0.05 mm less than H but preferably will remain greater than half of H: 0.5 x H ⁇ h ⁇ H- 0.05.
  • the cylinder 4 is engraved according to a pattern in agreement with that of the cylinder 2 in such a way that the protuberances of the second sheet overlap between the protuberances of the first sheet when the two sheets are assembled according to the method of Figure 1.
  • Figure 3 shows a partial top view of the pattern of the elements in relief 14 on the surface of the cylinder 4.
  • Their height H ' is equal to or lower than that of the first elements of the first sheet: H ' ⁇ H. Indeed, if it was greater, the protrusions would be crushed and brought to height H at passage in the interval between the matching cylinder 7 and the cylinder 2.
  • the raised elements of the cylinder 4 have a distribution identical to that of the second elements 12 of the first cylinder. They leave areas 16 non-embossed in which the first relief elements 10 fit.
  • Figure 4 is a partial sectional view of the multilayer sheet 100 obtained.
  • the sheet 5 has first protrusions 51, and second protrusions 52 of slightly lower height obtained with the elements in relief 10 and 12 respectively. As can be seen according to the embodiment of the figure, the latter is greater than half that of the protrusions 51.
  • the sheet 6 itself has protrusions 61, called third protrusions obtained with the elements in relief 14. According to the embodiment shown, they have substantially the same height as the first protrusions 51, and, apart areas occupied by the first protuberances, they overlap between the second protrusions 52 of the sheet.
  • Sheet 5 is linked to sheet 6, between two protrusions 61, by the top of the protrusions 51 by means of a layer adhesive 9.
  • the second cylinder has third and fourth raised elements which after embossing of the second leaf produce third and fourth protuberances at the surface of the latter.
  • the heights H 'and h' of said elements in relief will be preferably linked by the same relation as H and h, namely: 0.5 x H ' ⁇ h' ⁇ H'- 0.05.
  • the two cylinders are placed steel so that they mesh with each other. Compared to the solution of figure 1, this guarantees correct positioning of the protrusions of the sheet 6 - the one that is carried by the cylinder with which the matching cylinder is not associated - compared to protuberances of the other leaf. Indeed, by the meshing of the cylinders the two sheets are guided towards each other until they are assembled. This provision is of particular interest when a glueer is planned for each of the groups embossing. The bringing together of the steel cylinders so that they mesh one in the other already allows a certain association of folds at this level. This provision, thanks to the second glue, is useful if you want to increase the number of stitches of connection between the two layers.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Laminated Bodies (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Materials For Medical Uses (AREA)
  • Sanitary Thin Papers (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

PCT No. PCT/FR95/00786 Sec. 371 Date Jan. 14, 1997 Sec. 102(e) Date Jan. 14, 1997 PCT Filed Jun. 15, 1995 PCT Pub. No. WO95/35205 PCT Pub. Date Dec. 28, 1995An absorbent multi-layer sheet, with at least two layers each constituted of at least one embossed ply of creped absorbent paper having a specific surface weight between 10 and 40 g/m2 per ply, with an external surface forming the outer side of the multi-layer sheet and an inner surface, the inner surface of the first layer including first and second protrusions and the inner surface of the second layer including third protrusions nested between the-protrusions of the first layer, the two layers being bonded together by at least part of the protrusion tips of one layer adhesively joined to the other layer between two protrusions, is characterized in that the bonding is implemented by the first protrusions of the first layer, the second protrusions having a lesser height than the first ones and their tips being adhesive-free.

Description

La présente invention concerne le domaine des papiers absorbants à usage sanitaire et domestique, et vise une feuille multicouche pour des produits tels que papier toilette, mouchoirs, serviettes, ou chiffons d'essuyage, ainsi que son procédé de fabricationThe present invention relates to the field of absorbent papers for use sanitary and domestic, and targets a multilayer sheet for products such as toilet paper, handkerchiefs, towels, or wiping cloths, as well as its method of manufacturing

Dans l'industrie du papier sanitaire et domestique, on utilise, pour la réalisation des produits, un papier absorbant crêpé de faible poids tel que l'ouate de cellulose. On profite de sa capacité d'allongement conférée par le crêpage pour le gaufrer. En effet, le gaufrage donne du bouffant à la feuille, et induit une amélioration de l'absorption des liquides, du toucher et de la douceur.In the sanitary and domestic paper industry, we use, for the realization products, a low-weight creped absorbent paper such as cellulose wadding. We takes advantage of its elongation capacity conferred by the crêpe to emboss it. Indeed, the embossing gives bulk to the sheet, and induces an improvement in the absorption liquids, touch and softness.

On a cherché à augmenter encore la capacité d'absorption en créant des feuilles multicouches, obtenues en associant deux ou plusieurs feuillesWe tried to further increase the absorption capacity by creating sheets multilayer, obtained by combining two or more sheets

Le brevet US 3867225, par exemple, décrit un procédé pour réaliser un tel produit consistant à gaufrer séparément deux feuilles d'ouate de cellulose selon un motif constitué de projections ou protubérances à raison de 2 à 30 au cm2, à appliquer une substance adhésive sur le sommet d'une partie de ces projections, à rapprocher les deux feuilles par les faces gaufrées, c'est-à-dire présentant les protubérances, en disposant les protubérances de l'une entre les protubérances de l'autre, et à lier, par la colle, les sommets d'une feuille avec les zones en renfoncement de l'autre feuille. Par les vides ménagés entre les deux feuilles, on réalise ainsi une structure ayant une capacité d'absorption améliorée par rapport à des feuilles absorbantes non ainsi transformées. Dans certaines applications du produit obtenu, où la douceur est un critère important, on souhaiterait éviter la présence d'un trop grand nombre de points de liaison entre les deux feuilles, car la surface totale liée lui est proportionnelle et celle-ci constitue un important facteur de rigidité. L'encollage étant réalisé par dépôt au moyen d'un cylindre encolleur, le nombre de points de liaison est égal à celui des protubérances de la feuille recevant la colle. Pour réduire ce nombre de points de liaison, on propose dans ce brevet un encollage partiel par l'emploi d'un cylindre applicateur de colle dont la surface est creusée d'alvéoles. Malheureusement une telle solution s'est révélée impraticable industriellement car elle conduit à un encrassement rapide des cylindres par agglomération de matière dans les alvéoles.US Pat. No. 3,867,225, for example, describes a process for producing such a product consisting in embossing two sheets of cellulose wadding separately according to a pattern consisting of projections or protuberances at a rate of 2 to 30 per cm 2 , applying an adhesive substance on the top of part of these projections, to bring the two sheets together by the embossed faces, that is to say having the protuberances, by arranging the protuberances of one between the protuberances of the other, and glue the vertices of one sheet with the recessed areas of the other sheet. By the voids formed between the two sheets, a structure is thus produced having an improved absorption capacity compared to absorbent sheets not thus transformed. In certain applications of the product obtained, where softness is an important criterion, it would be desirable to avoid the presence of too large a number of connection points between the two sheets, since the total surface linked to it is proportional and this constitutes an important stiffness factor. As the gluing is carried out by deposition by means of a gluing cylinder, the number of connection points is equal to that of the protuberances of the sheet receiving the glue. To reduce this number of connection points, this patent proposes partial gluing by the use of a glue applicator cylinder whose surface is hollowed out with cells. Unfortunately, such a solution has proven to be impractical industrially because it leads to rapid fouling of the cylinders by agglomeration of material in the cells.

Le brevet US 4320162, décrit une structure de feuille multicouche constituée de deux feuilles gaufrées. Chaque feuille comprend un motif large de premières protubérances gaufrées relativement profondément, entourées d'un motif plus serré de deuxièmes protubérances gaufrées moins profondément. Les deux feuilles sont associées, selon un premier exemple, par les sommets des premières protubérances, et, selon un deuxième mode de réalisation, par les sommets des premières saillies pour une feuille et les sommets des deuxièmes saillies pour l'autre feuille. Une telle structure offre en théorie un volume de vide interne plus important que dans la disposition présentée dans le brevet US 3867225 puisqu'on joint les deux feuilles par le sommet des saillies. Elle résiste toutefois moins bien à l'écrasement; on constate en effet un affaissement des saillies déjà sous une faible pression d'appui.US Patent 4320162 describes a multilayer sheet structure consisting of two embossed sheets. Each sheet includes a wide pattern of firsts relatively deep embossed protrusions surrounded by a tighter pattern of second protrusions embossed less deeply. The two sheets are associated, according to a first example, by the vertices of the first protrusions, and, according to a second embodiment, by the vertices of the first projections for one leaf and the vertices of the second projections for the other leaf. Such a structure in theory offers a greater internal vacuum volume than in the layout presented in patent US 3867225 since the two sheets are joined by the top protrusions. However, it is less resistant to crushing; there is indeed a sagging of the projections already under low contact pressure.

La présente invention propose une structure multicouche combinant les avantages des deux procédés évoqués ci-dessus sans en présenter les inconvénients, ainsi que son procédé de fabricationThe present invention provides a multilayer structure combining the advantages of the two methods mentioned above without presenting the disadvantages, as well as its manufacturing process

L'invention a pour objet une feuille multicouche absorbante à au moins deux couches constituées, chacune, d'au moins une feuille gaufrée de papier absorbant crêpé de poids compris entre 10 et 40 g/m2 par feuille, avec une face externe formant la face externe de la feuille multicouche et une face interne, la face interne de la première couche comportant des premières et des deuxièmes protubérances, et la face interne de la deuxième couche comportant des troisièmes protubérances imbriquées entre les protubérances de la première couche, les deux couches étant liées entre elles par au moins une partie des sommets des protubérances d'une couche rendus solidaires par collage à l'autre couche entre deux protubérances. Cette feuille multicouche est caractérisée en ce que ladite liaison est assurée par les premières protubérances de la première couche, lesdites deuxièmes protubérances présentant une hauteur moindre que les premières et leur sommet n'ayant pas reçu de substance adhésive.The subject of the invention is a multilayer absorbent sheet with at least two layers each consisting of at least one embossed sheet of creped absorbent paper weighing between 10 and 40 g / m 2 per sheet, with an external face forming the external face of the multilayer sheet and an internal face, the internal face of the first layer comprising first and second protrusions, and the internal face of the second layer comprising third overlapping protuberances between the protuberances of the first layer, the two layers being linked together by at least part of the tops of the protrusions of a layer made integral by bonding to the other layer between two protrusions. This multilayer sheet is characterized in that said connection is provided by the first protuberances of the first layer, said second protuberances having a lower height than the first and their top having received no adhesive substance.

Grâce à l'invention on obtient une feuille dont la rigidité est plus faible que celle d'une feuille comportant le même nombre de protubérances emboítées également, mais où ces dernières sont toutes de même hauteur. En outre, on ne pénalise pas la résistance à l'écrasement. On peut aisément définir la surface totale encollée à partir de la surface des sommets des premières protubérances. Ainsi la surface encollée peut varier de 0,1 à 20% selon l'application à laquelle on destine le produit obtenu. Pour une feuille destinée à être transformée en papier toilette, on choisira une surface encollée comprise entre 1 et 5% afin d'obtenir une douceur optimale.Thanks to the invention, a sheet is obtained whose rigidity is lower than that of a sheet having the same number of protrusions also nested, but where these are all the same height. In addition, we do not penalize the crush resistance. We can easily define the total surface glued from the surface of the peaks of the first protuberances. So the glued surface can vary from 0.1 to 20% depending on the application for which the product obtained is intended. For a sheet intended to be transformed into toilet paper, we will choose a surface glued between 1 and 5% to obtain optimal softness.

Conformément à une autre caractéristique, la hauteur des deuxièmes protubérances est supérieure à 50% de la hauteur des premières protubérances. En effet, on obtient une résistance optimale à l'écrasement si les deuxièmes protubérances sont sensiblement au même niveau que la surface de la couche adjacente.According to another characteristic, the height of the second protrusions is greater than 50% of the height of the first protrusions. In effect, optimal resistance to crushing is obtained if the second protrusions are substantially at the same level as the surface of the adjacent layer.

Conformément à une autre caractéristique, les premières protubérances sont réparties selon un motif espacé, au moins deux deuxièmes protubérances étant disposées entre deux premières protubérances successives. Les premières protubérances reproduiront avantageusement un dessin combinant une pluralité de traits plaisant à l'oeil, celui d'une fleur par exemple. Ces dessins seront entourés de points constitués par les deuxièmes protubérances et occupant chacun une faible surface, la densité de ces points pourra être relativement élevée, jusqu'à 80 ou 100 points au cm2.According to another characteristic, the first protrusions are distributed in a spaced pattern, at least two second protrusions being arranged between two successive first protrusions. The first protrusions will advantageously reproduce a drawing combining a plurality of lines pleasing to the eye, that of a flower for example. These drawings will be surrounded by points constituted by the second protrusions and each occupying a small area, the density of these points may be relatively high, up to 80 or 100 points per cm 2 .

Conformément à une autre caractéristique, la hauteur des troisièmes protubérances est inférieure ou égale à la hauteur des premières protubérances. Afin d'assurer une résistance à l'écrasement satisfaisante il est souhaitable que la hauteur de ces protubérances soit au moins la moitié de celle des premières protubérances.According to another characteristic, the height of the third protrusions is less than or equal to the height of the first protrusions. To to ensure satisfactory crush resistance it is desirable that the height of these protuberances is at least half that of the first protuberances.

Conformément à une autre caractéristique, les sommets des troisièmes protubérances forment une liaison, par collage, avec la première couche.According to another characteristic, the vertices of the third protrusions form a bond, by gluing, with the first layer.

La présente invention a également pour objet un procédé permettant de fabriquer la feuille multicouche présentée ci-dessus. Le procédé pour réaliser une feuille multicouche, consistant à gaufrer une première feuille de papier, elle-même simple ou multiple, sur un premier cylindre comportant à sa surface des premiers et des seconds éléments en relief et une deuxième feuille, pouvant également être simple ou multiple, sur un deuxième cylindre comportant des troisièmes éléments en relief, à déposer de la colle sur au moins une partie des sommets des protubérances réalisées sur l'une des feuilles, à rapprocher les deux feuilles de façon que les protubérances de la première feuille s'imbriquent entre les protubérances de la deuxième feuille, et que les sommets encollés adhèrent à l'autre feuille entre deux protubérances, est caractérisé en ce que les premiers éléments ont une hauteur H, mesurée par rapport à la surface du cylindre, supérieure à la hauteur h des seconds éléments, la différence entre les hauteurs H et h étant supérieure à 0,05 mm : H-h > 0,05mm et ce que, sur la première feuille, ledit dépôt de colle n'est effectué que sur les premières protubérances.The present invention also relates to a method making it possible to manufacture the multilayer sheet presented above. The method for making a multilayer sheet, consisting of embossing a first sheet of paper, itself single or multiple, on a first cylinder comprising on its surface first and second elements in relief and a second sheet, which can also be simple or multiple, on a second cylinder comprising third elements in relief, with apply glue to at least part of the tops of the protuberances on one of the sheets, bring the two sheets together so that the protrusions of the first leaf overlap between the protrusions of the second leaf, and that the glued tops adhere to the other sheet between two protrusions, is characterized in that the first elements have a height H, measured in relation to the surface of the cylinder, greater than the height h of the second elements, the difference between the heights H and h being greater than 0.05 mm: H-h> 0.05 mm and what, on the first sheet, said deposit glue is only made on the first protrusions.

Conformément à une autre caractéristique, la différence entre lesdites hauteurs H et h est inférieure à 50 % de H, en particulier pour H compris entre 1 et 2 mm, et notamment lorsque la hauteur des éléments est comprise entre 1,2 et 1,5 mm. On obtient ainsi une feuille multicouche dont les deuxièmes protubérances rempliront de façon optimale leur rôle de jambe de force et de résistance à l'écrasement. According to another characteristic, the difference between said heights H and h is less than 50% of H, in particular for H between 1 and 2 mm, and especially when the height of the elements is between 1.2 and 1.5 mm. We thus obtains a multilayer sheet whose second protrusions will fill with their role as a strut and resistance to crushing.

Conformément à une autre caractéristique, les troisièmes éléments en relief, sur le deuxième cylindre, ont une hauteur H' inférieure ou égale à la hauteur H : H' ≤ HIn accordance with another characteristic, the third elements in relief, on the second cylinder, have a height H 'less than or equal to the height H: H' ≤ H

Conformément à une autre caractéristique, le deuxième cylindre comporte des quatrièmes éléments en relief, la hauteur h' des quatrièmes éléments étant inférieure à la hauteur H' des troisièmes éléments.According to another characteristic, the second cylinder has fourth elements in relief, the height h 'of the fourth elements being less than the height H 'of the third elements.

Conformément à un autre caractéristique, H' et h' sont liés par la relation : 0,5 x H' ≤h' ≤ H'- 0,05.According to another characteristic, H 'and h' are linked by the relation: 0.5 x H '≤h' ≤ H'- 0.05.

Conformément à une autre caractéristique, on applique une substance adhésive à la fois sur les premières et les troisièmes protubérances.According to another characteristic, an adhesive substance is applied both on the first and third protrusions.

D'autres caractéristiques et avantages apparaítront à la lecture des modes de réalisation non limitatifs de l'invention, en référence aux dessins annexés sur lesquels :

  • La figure 1 représente une installation pour la mise en oeuvre du procédé de l'invention.
  • La figure 2 représente le motif des éléments en relief, selon un mode de réalisation, apparaissant à la surface d'un cylindre de gaufrage.
  • La figure 3 représente le motif des éléments en relief sur l'autre cylindre de gaufrage coopérant avec le cylindre de la figure 2.
  • La figure 4 représente, vue en coupe partielle , la feuille multicouche obtenue selon le procédé.
    • Other characteristics and advantages will appear on reading the nonlimiting embodiments of the invention, with reference to the appended drawings in which:
  • FIG. 1 represents an installation for implementing the method of the invention.
  • FIG. 2 represents the pattern of the elements in relief, according to one embodiment, appearing on the surface of an embossing cylinder.
  • FIG. 3 represents the pattern of the elements in relief on the other embossing cylinder cooperating with the cylinder of FIG. 2.
  • FIG. 4 represents, seen in partial section, the multilayer sheet obtained according to the method.

    • On a représenté schématiquement sur la figure 1 une machine, maintenant classique, permettant de fabriquer le produit de l'invention.There is shown schematically in Figure 1 a machine, now conventional, used to manufacture the product of the invention.

    Cette installation comporte deux unités de gaufrage, constituées chacune d'un cylindre à revêtement en élastomère, 1 et 3 respectivement, coopérant avec un cylindre en acier gravé, 2 et 4 respectivement. Les cylindres 2 et 4 sont gravés de façon à présenter en surface des éléments en relief ou picots, répartis régulièrement aussi bien sens machine que sens travers.This installation comprises two embossing units, each consisting of a elastomer-coated cylinder, 1 and 3 respectively, cooperating with a cylinder engraved steel, 2 and 4 respectively. Cylinders 2 and 4 are engraved so that present on the surface elements in relief or spikes, distributed regularly as well machine direction than cross direction.

    Une première feuille d'ouate de cellulose 5, papier crêpé absorbant utilisé comme papier sanitaire ou domestique, tel que papier toilette, mouchoir, serviette, ou chiffon d'essuyage, est entraínée depuis une bobine non représentée et guidée autour du cylindre 1; selon le mode de réalisation représenté, il s'agit d'une feuille double. Le cylindre est pressé contre le cylindre 2 par des moyens appropriés non représentés de telle sorte que la feuille, en passant entre eux, est amenée à se déformer et épouser le relief de la gravure du cylindre 2. La feuille est ensuite entraínée par ce dernier. Un dispositif d'encollage 8, connu en soi, dépose avec un cylindre applicateur une substance adhésive 9 sur le sommet des éléments en relief ou protubérances de la feuille 5.A first sheet of cellulose wadding 5, absorbent crepe paper used as sanitary or household paper, such as toilet paper, handkerchief, towel, or wiping cloth, is driven from a reel not shown and guided around of cylinder 1; according to the embodiment shown, it is a double sheet. The cylinder is pressed against cylinder 2 by suitable means not shown of so that the sheet, passing between them, is caused to deform and marry the relief of the engraving of the cylinder 2. The sheet is then driven by the latter. A sizing device 8, known per se, deposits with an applicator cylinder a adhesive substance 9 on the top of the raised elements or protuberances of the sheet 5.

    Une deuxième feuille 6, entraínée depuis une bobine, subit un gaufrage analogue en passant entre les cylindres 3 et 4. Le cylindre 4 est disposé à une légère distance du cylindre 2 afin que la feuille puisse se détacher de la surface du cylindre 4. Elle vient au contact de la première feuille, sur une portion de sa course où celle-ci est encore appliquée contre la surface du cylindre 2. Les deux cylindres sont entraínés à des vitesses synchrones et opposées, ils sont calés en rotation l'un par rapport à l'autre de façon que les protubérances de la feuille 6 viennent se loger entre les protubérances de la feuille 5. Un cylindre 7, dit marieur, à surface lisse, entraíné en rotation contre le cylindre 2 assure l'union des deux feuilles en pressant la feuille 6 par ses zones en renfoncement - entre deux protubérances adjacentes - contre les sommets pourvus de colle 9 des protubérances de la feuille 5. La feuille multicouche obtenue est ensuite découpée en feuilles de petite laize et mise en rouleaux, de papier toilette par exemple.A second sheet 6, driven from a coil, undergoes embossing similar passing between cylinders 3 and 4. Cylinder 4 is arranged at a slight distance from cylinder 2 so that the sheet can come off the surface of cylinder 4. It comes into contact with the first leaf, over a portion of its course where it is still applied against the surface of cylinder 2. The two cylinders are driven to synchronous and opposite speeds, they are set in rotation relative to each other so that the protrusions of the sheet 6 are housed between the protrusions of sheet 5. A cylinder 7, said matchmaker, with smooth surface, rotated against the cylinder 2 ensures the union of the two sheets by pressing sheet 6 by its zones in indentation - between two adjacent protuberances - against the vertices provided with glue 9 of the protrusions of the sheet 5. The multilayer sheet obtained is then cut into sheets of small width and put in rolls, of toilet paper for example.

    Selon l'invention, le cylindre présente des premiers et deuxièmes éléments en relief de hauteurs différentes. Une vue agrandie, partielle et en perspective de la surface du cylindre 2 est reproduite sur la figure 1. Les premiers éléments en relief 10, sur lesquels se forment les premières protubérances de la première feuille, ont une hauteur H, et sont répartis à la surface du cylindre selon un motif régulier ou non. Lorsque les reliefs sont obtenus par gravure ou par usinage, la hauteur est mesurée depuis le sommet de l'élément qui est sensiblement plan en général, jusqu'au fond de la gravure. Si les éléments sont rapportés, on procède de la même façon par différence de hauteurs, la référence étant le sommet des plus élevés des éléments.According to the invention, the cylinder has first and second elements in relief of different heights. An enlarged, partial and perspective view of the surface of the cylinder 2 is reproduced in FIG. 1. The first elements in relief 10, on which the first protuberances form the first sheet, have a height H, and are distributed on the surface of the cylinder according to a regular pattern or not. When the reliefs are obtained by engraving or by machining, the height is measured from the top of the element which is substantially planar in general, to the bottom of the engraving. If the elements are reported, we proceed from the same way by difference in heights, the reference being the top of the highest elements.

    Ces premiers éléments peuvent être de forme quelconque. Ils sont avantageusement constitués de façon à former l'empreinte d'un dessin linéaire, par exemple celui d'une fleur tel que celui représenté sur la figure 2. Les premiers éléments 10 sont relativement distants les uns des autres. Cet espacement sera fonction notamment de la surface occupée par le dessin sur la feuille. Par exemple, pour un dessin s'inscrivant dans une surface de 100 mm2, la distance entre deux premiers éléments sera de 15 mm. La hauteur H est comprise entre 1 et 2 mm. Une valeur particulièrement appropriée, pour la réalisation d'un papier toilette à partir d'ouate de cellulose de poids compris entre 10 et 40 g/m2, est comprise entre 1,2 et 1,5 mm, par exemple 1,3 mm. Bien évidemment, la profondeur du gaufrage et la hauteur des protubérances en résultant sur la feuille dépendra de la dureté du revêtement du cylindre 1 et de la pression qu'il exerce sur le cylindre 2.These first elements can be of any shape. They are advantageously constituted so as to form the imprint of a linear design, for example that of a flower such as that shown in FIG. 2. The first elements 10 are relatively distant from each other. This spacing will depend in particular on the surface occupied by the drawing on the sheet. For example, for a drawing falling within an area of 100 mm 2 , the distance between the first two elements will be 15 mm. The height H is between 1 and 2 mm. A particularly suitable value, for the production of toilet paper from cellulose wadding weighing between 10 and 40 g / m 2 , is between 1.2 and 1.5 mm, for example 1.3 mm . Obviously, the depth of the embossing and the height of the resulting protrusions on the sheet will depend on the hardness of the coating of the cylinder 1 and the pressure it exerts on the cylinder 2.

    Entre ces premiers éléments, relativement éloignés les uns des autres, sont disposés des deuxièmes éléments en relief 12 dont la hauteur h est plus faible. En pratique, la hauteur h est mesurée par différence avec H.Between these first elements, relatively distant from each other, are arranged in second relief elements 12 whose height h is lower. In practical, the height h is measured by difference with H.

    Ces seconds éléments dans la structure de la feuille multicouche doivent remplir, comme les premiers éléments, la fonction de jambe de force, pour contribuer à la résistance à la compression et donner le volume; cependant ils doivent être suffisamment en retrait par rapport à ceux-ci pour que le dispositif d'encollage n'applique la substance adhésive que sur les sommets des premières protubérances de la première feuille. En pratique, la hauteur h des seconds éléments sera au moins inférieure de 0,05 mm à H mais de préférence restera supérieure à la moitié de H : 0,5 x H ≤ h ≤ H- 0,05.These second elements in the structure of the multilayer sheet must fulfill, as the first elements, the function of strut, to contribute to compressive strength and give volume; however they must be sufficiently set back from these so that the sizing device only apply the adhesive substance to the tops of the first protrusions of the first sheet. In practice, the height h of the second elements will be at least 0.05 mm less than H but preferably will remain greater than half of H: 0.5 x H ≤ h ≤ H- 0.05.

    Ces éléments 12 sont répartis, entre les éléments 10, selon un motif régulier plus serré. Sur la figure 2, on a représenté une vue partielle en plan de la répartition des premiers et seconds éléments à la surface du cylindre 2.These elements 12 are distributed, between the elements 10, in a regular pattern tighter. In Figure 2, there is shown a partial plan view of the distribution first and second elements on the surface of cylinder 2.

    Le cylindre 4 est gravé selon un motif en concordance avec celui du cylindre 2 de telle sorte que les protubérances de la deuxième feuille viennent s'imbriquer entre les protubérances de la première feuille au moment de l'assemblage des deux feuilles selon le procédé de la figure 1. La figure 3 représente une vue de dessus partielle du motif des éléments en relief 14 à la surface du cylindre 4. Leur hauteur H' est égale ou inférieure à celle des premiers éléments de la première feuille : H' ≤ H. En effet, si elle était supérieure, les protubérances seraient écrasées et amenées à la hauteur H au passage dans l'intervalle entre le cylindre marieur 7 et le cylindre 2. Comme on le constate, dans cet exemple, les éléments en relief du cylindre 4 ont une répartition identique à celle des deuxièmes éléments 12 du premier cylindre. Ils laissent des zones 16 non gaufrées dans lesquelles viennent s'emboíter les premiers éléments en relief 10.The cylinder 4 is engraved according to a pattern in agreement with that of the cylinder 2 in such a way that the protuberances of the second sheet overlap between the protuberances of the first sheet when the two sheets are assembled according to the method of Figure 1. Figure 3 shows a partial top view of the pattern of the elements in relief 14 on the surface of the cylinder 4. Their height H 'is equal to or lower than that of the first elements of the first sheet: H '≤ H. Indeed, if it was greater, the protrusions would be crushed and brought to height H at passage in the interval between the matching cylinder 7 and the cylinder 2. As is notes, in this example, the raised elements of the cylinder 4 have a distribution identical to that of the second elements 12 of the first cylinder. They leave areas 16 non-embossed in which the first relief elements 10 fit.

    La figure 4 est une vue partielle en coupe de la feuille multicouche 100 obtenue. La feuille 5 comporte des premières protubérances 51, et des secondes protubérances 52 de hauteur légèrement inférieure obtenues avec les éléments en relief 10 et 12 respectivement. Comme on peut le voir selon le mode de réalisation de la figure, cette dernière est supérieure à la moitié de celle des protubérances 51. La feuille 6 comporte elle-même des protubérances 61, dites troisièmes protubérances obtenues avec les éléments en relief 14. Selon le mode de réalisation représenté, elles ont sensiblement la même hauteur que les premières protubérances 51, et, en dehors des zones occupées par les premières protubérances, elles s'imbriquent entre les deuxièmes protubérances 52 de la feuille. La feuille 5 est liée à la feuille 6, entre deux protubérances 61, par le sommet des protubérances 51 au moyen d'une couche d'adhésif 9.Figure 4 is a partial sectional view of the multilayer sheet 100 obtained. The sheet 5 has first protrusions 51, and second protrusions 52 of slightly lower height obtained with the elements in relief 10 and 12 respectively. As can be seen according to the embodiment of the figure, the latter is greater than half that of the protrusions 51. The sheet 6 itself has protrusions 61, called third protrusions obtained with the elements in relief 14. According to the embodiment shown, they have substantially the same height as the first protrusions 51, and, apart areas occupied by the first protuberances, they overlap between the second protrusions 52 of the sheet. Sheet 5 is linked to sheet 6, between two protrusions 61, by the top of the protrusions 51 by means of a layer adhesive 9.

    Grâce à la solution de l'invention avec gaufrage à deux niveaux de l'une des feuilles, il est possible également d'obtenir des feuilles multicouches dont l'aspect peut être encore amélioré en colorant la substance adhésiveThanks to the solution of the invention with two-level embossing of one of the sheets, it is also possible to obtain multilayer sheets whose appearance can be further improved by coloring the adhesive substance

    Selon un autre mode réalisation de l'invention non représenté, le deuxième cylindre comporte des troisièmes et quatrièmes éléments en relief qui après gaufrage de la deuxième feuille produisent des troisièmes et quatrièmes protubérances à la surface de cette dernière. Les hauteurs H' et h' desdits éléments en relief seront de préférence liés par la même relation que H et h, à savoir : 0,5 x H' ≤ h' ≤ H'- 0,05.According to another embodiment of the invention not shown, the second cylinder has third and fourth raised elements which after embossing of the second leaf produce third and fourth protuberances at the surface of the latter. The heights H 'and h' of said elements in relief will be preferably linked by the same relation as H and h, namely: 0.5 x H '≤ h' ≤ H'- 0.05.

    Selon un autre mode réalisation non représenté, on dispose les deux cylindres acier de façon qu'ils engrènent l'un dans l'autre. Par rapport à la solution de la figure 1, on garantit ainsi un positionnement correct des protubérances de la feuille 6 - celle qui est portée par le cylindre auquel n'est pas associé le cylindre marieur - par rapport aux protubérances de l'autre feuille. En effet, par l'engrènement des cylindres les deux feuilles sont guidées l'une vers l'autre jusqu'à leur assemblage. Cette disposition présente un intérêt particulier lorsqu'on prévoit un encolleur sur chacun, des groupes de gaufrage. Le rapprochement des cylindres acier de façon à ce qu'ils engrènent l'un dans l'autre permet déjà à ce niveau une certaine association des plis. Cette disposition, grâce au deuxième encolleur, est utile si on souhaite augmenter le nombre des points de liaison entre les deux couches.According to another embodiment not shown, the two cylinders are placed steel so that they mesh with each other. Compared to the solution of figure 1, this guarantees correct positioning of the protrusions of the sheet 6 - the one that is carried by the cylinder with which the matching cylinder is not associated - compared to protuberances of the other leaf. Indeed, by the meshing of the cylinders the two sheets are guided towards each other until they are assembled. This provision is of particular interest when a glueer is planned for each of the groups embossing. The bringing together of the steel cylinders so that they mesh one in the other already allows a certain association of folds at this level. This provision, thanks to the second glue, is useful if you want to increase the number of stitches of connection between the two layers.

    Claims (14)

    1. Multilayer absorbent sheet having at least two layers, each consisting of at least one embossed sheet of absorbent crepe paper having a weight of between 10 and 40 g/m2 per sheet, with an outer face forming the outer face of the multilayer sheet, and an inner face, the inner face of the first layer (5) having first (51) and second (52) protuberances, and the inner face of the second layer (6) having third protuberances (61) interlaced between the protuberances of the first layer, the two layers being bonded together by at least part of the tops of the protuberances of one layer secured by gluing to the other layer between two protuberances, characterized in that the said bond is provided by the first protuberances of the first layer, the said second protuberances being less high than the first and their tops not having received the adhesive substance.
    2. Sheet according to the preceding claim, characterized in that the height of the second protuberances is greater than 50 % of the height of the first protuberances.
    3. Sheet according to one of the preceding claims, characterized in that the first protuberances are distributed in a spaced pattern, more than one second protuberance being positioned between two successive first protuberances.
    4. Sheet according to one of the preceding claims, characterized in that the glued area of the tops of the first protuberances represent between 0.1 and 20 % of the area of the sheet.
    5. Sheet according to the preceding claim, characterized in that the said glued area represents between 1 and 5 % of the total area of the sheet.
    6. Sheet according to one of the preceding claims, characterized in that the height of the third protuberances is less than or equal to the height of the first protuberances.
    7. Sheet according to the preceding claim, characterized in that the second layer has fourth protuberances of which the height is at least 50 % of the height of the third protuberances.
    8. Sheet according to either of claims 6 or 7, characterized in that the tops of the third protuberances form a bond by gluing with the first layer.
    9. Process for producing a multilayer sheet according to one of the preceding claims, consisting of embossing a first sheet of paper on a first cylinder having on its surface first and second raised elements, and a second sheet on a second cylinder having third raised elements, of depositing glue on at least part of the tops of the protuberances produced on one of the sheets, of bringing the two sheets together so that protuberances of the first sheet are interlaced between the protuberances of the second sheet, and in that the glued tops adhere to the other sheet between two protuberances, characterized in that the first elements have a height H greater than the height h of the second elements, the difference between the heights H and h being greater than 0.05 mm : H - h > 0.05, and in that, on the first sheet, the said glue deposit is only applied to the first protuberances.
    10. Process according to claim 9, characterized in that the difference between the said heights H and h is less than 50 % of H for a value of H of between 1 and 2 mm.
    11. Process according to either of claims 9 or 10, characterized in that the third raised elements on the second cylinder have a height H' less than or equal to the height H : H' ≤ H.
    12. Process according to claim 11, characterized in that the second cylinder has fourth raised elements, the height h' of the fourth elements being less than the height H' of the third elements.
    13. Process according to claim 12, characterized in that H' and h' are associated by the relationship : 0.5×H'≤h'≤H' -0.05.
    14. Process according to claim 12 or 13, characterized in that the heights of the first and third raised elements being equal : H = H', an adhesive substance is applied to ensure a bond between the two sheets on the tops of the third protuberances.
    EP95923389A 1994-06-17 1995-06-15 Absorbent paper multilayered sheet and method of manufacture Revoked EP0765215B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    FR9407482 1994-06-17
    FR9407482A FR2721251B1 (en) 1994-06-17 1994-06-17 Multilayer sheet of absorbent paper, process for its production
    PCT/FR1995/000786 WO1995035205A1 (en) 1994-06-17 1995-06-15 Absorbent paper multilayered sheet and method of manufacture

    Publications (2)

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    EP0765215A1 EP0765215A1 (en) 1997-04-02
    EP0765215B1 true EP0765215B1 (en) 1999-03-10

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    US (1) US5846636A (en)
    EP (1) EP0765215B1 (en)
    AT (1) ATE177363T1 (en)
    CA (1) CA2193088C (en)
    DE (1) DE69508242T2 (en)
    DK (1) DK0765215T3 (en)
    ES (1) ES2128742T3 (en)
    FI (1) FI965041A (en)
    FR (1) FR2721251B1 (en)
    GR (1) GR3029870T3 (en)
    WO (1) WO1995035205A1 (en)

    Cited By (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US7285317B2 (en) 2002-03-29 2007-10-23 Fabio Perini, S.P.A. Method and device for producing an embossed web material and product obtained with said method
    US8678806B2 (en) 2008-08-07 2014-03-25 Sca Hygiene Products Gmbh Apparatus and method for ply bonding as well as multi-ply product
    US8999095B2 (en) 2008-08-07 2015-04-07 SCA Hygiene Prodcuts GmbH Apparatus and method for ply bonding as well as multi-ply product

    Families Citing this family (57)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US5620776A (en) * 1992-12-24 1997-04-15 James River Corporation Of Virginia Embossed tissue product with a plurality of emboss elements
    US5840404A (en) * 1995-08-25 1998-11-24 Fort James France Absorbent multilayer sheet and method for making same
    US5965235A (en) * 1996-11-08 1999-10-12 The Procter & Gamble Co. Three-dimensional, amorphous-patterned, nesting-resistant sheet materials and method and apparatus for making same
    IL138118A (en) * 1998-03-02 2004-12-15 Perini Fabio Spa Method and device for producing an embossed web material and product made in this way
    US6086715A (en) 1998-11-23 2000-07-11 The Procter & Gamble Company Embossed multiply cellulosic fibrous structure having selective bond sites and process for producing the same
    US6277466B1 (en) 1998-11-23 2001-08-21 The Procter & Gamble Company Embossed multi ply cellulosic fibrous structure and process for producing the same
    US6245273B1 (en) 1998-12-30 2001-06-12 Kimberly-Clark Worldwide, Inc. Method for embossing and crimping a multi-layer sheet material web assembly
    KR100366116B1 (en) * 1999-05-28 2003-01-25 더 프록터 앤드 갬블 캄파니 Cellulosic fibrous web having embossed pattern
    IT1307887B1 (en) * 1999-06-18 2001-11-19 Perini Fabio Spa EMBOSSING METHOD AND DEVICE FOR THE PRODUCTION OF MULTI-LEVEL STRUCTURAL MATERIALS, AND PRODUCT SO OBTAINED.
    US6368539B1 (en) * 1999-07-30 2002-04-09 Potlatch Corporation Methods of embossing materials
    US6572722B1 (en) 1999-11-22 2003-06-03 The Procter & Gamble Company Process for autogeneously bonding laminae of a mult-lamina cellulosic substrate
    US6602577B1 (en) 2000-10-03 2003-08-05 The Procter & Gamble Company Embossed cellulosic fibrous structure
    AUPR081300A0 (en) * 2000-10-18 2000-11-09 Winchester (Avon Downs) Pty Ltd A filtering device
    KR100909010B1 (en) * 2000-11-14 2009-07-22 킴벌리-클라크 월드와이드, 인크. Improved Multi-Layer Tissue Products
    EP1270196B1 (en) * 2001-06-29 2006-03-29 Georgia-Pacific France Method of making embossed tissue paper and embossing cylinder
    US7805818B2 (en) 2001-09-05 2010-10-05 The Procter & Gamble Company Nonwoven loop member for a mechanical fastener
    ATE393856T1 (en) † 2001-12-12 2008-05-15 Georgia Pacific France MULTI-LAYER SHEET OF ABSORBENT PAPER
    EP1325982B1 (en) * 2001-12-27 2007-02-14 Georgia-Pacific France Embossed paper sheet
    US6649025B2 (en) 2001-12-31 2003-11-18 Kimberly-Clark Worldwide, Inc. Multiple ply paper wiping product having a soft side and a textured side
    WO2005009587A1 (en) * 2003-07-29 2005-02-03 Roger William Gemmell A filter element
    US8241543B2 (en) 2003-08-07 2012-08-14 The Procter & Gamble Company Method and apparatus for making an apertured web
    US20050247397A1 (en) * 2003-09-29 2005-11-10 The Procter & Gamble Company Process for producing embossed products
    US7314663B2 (en) * 2003-09-29 2008-01-01 The Procter + Gamble Company Embossed multi-ply fibrous structure product and process for making same
    US7374638B2 (en) * 2003-09-29 2008-05-20 The Procter & Gamble Company High bulk strong absorbent single-ply tissue-towel paper product
    CN101124363A (en) * 2004-02-17 2008-02-13 宝洁公司 Deep-nested embossed paper products
    CA2554948A1 (en) * 2004-03-18 2005-09-22 Sca Hygiene Products Ab Method and device for producing a multi-ply web of flexible material, such as paper and nonwoven, and multi-ply material produced by the method
    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
    ITFI20050033A1 (en) * 2005-03-01 2006-09-02 Perini Fabio Spa EMBOSSING ROLLER, EMBEDDING DEVICE INCLUDING THE ROLLER AND ITEM OF PAPER-MADE MATERIAL MADE WITH THIS EMBOSSING DEVICE
    ITFI20050032A1 (en) * 2005-03-01 2006-09-02 Perini Fabio Spa METHOD AND PROVISION FOR THE JOINT OF PAPER SAILS
    ITMI20050554A1 (en) * 2005-04-04 2006-10-05 Giovanni Gambini MULTILAYER PAPER
    US7829177B2 (en) * 2005-06-08 2010-11-09 The Procter & Gamble Company Web materials having offset emboss patterns disposed thereon
    US7597777B2 (en) 2005-09-09 2009-10-06 The Procter & Gamble Company Process for high engagement embossing on substrate having non-uniform stretch characteristics
    DE102006010709A1 (en) * 2006-03-08 2007-09-13 Metsä Tissue Oyj Embossing device for at least two-ply surface products such as toilet paper, handkerchiefs o.
    US7744723B2 (en) * 2006-05-03 2010-06-29 The Procter & Gamble Company Fibrous structure product with high softness
    US8152959B2 (en) * 2006-05-25 2012-04-10 The Procter & Gamble Company Embossed multi-ply fibrous structure product
    PL2044264T3 (en) * 2006-07-26 2012-07-31 Sca Hygiene Prod Gmbh Multi-ply tissue paper product, paper converting device for a multi-ply tissue paper product and method for producing a multi-ply tissue paper product
    ITFI20060245A1 (en) 2006-10-11 2008-04-12 Delicarta Spa A MATERIAL IN PAPER WITH HIGH DETERGENT CHARACTERISTICS AND METHOD FOR ITS PRODUCTION
    ITFI20070048A1 (en) * 2007-02-27 2008-08-28 Perini Fabio Spa MULTI-FUNCTION EMBOSS GROUP
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    USD640473S1 (en) 2009-03-10 2011-06-28 The Procter & Gamble Company Paper product
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    CA2755277A1 (en) * 2009-03-13 2010-09-16 The Procter & Gamble Company Process for making an embossed web
    US9271879B2 (en) * 2009-03-13 2016-03-01 The Procter & Gamble Company Article having a seal and process for forming the same
    US8328984B2 (en) 2009-05-19 2012-12-11 The Procter & Gamble Company Web substrate having optimized emboss design
    WO2011069532A1 (en) * 2009-12-07 2011-06-16 Sca Hygiene Products Ab Fibrous product, embossing roll for producing such fibrous product, and device and method for producing such fibrous product
    US9079324B2 (en) * 2010-03-11 2015-07-14 The Procter & Gamble Company Process for making a film/nonwoven laminate
    US9067357B2 (en) 2010-09-10 2015-06-30 The Procter & Gamble Company Method for deforming a web
    US9220638B2 (en) 2010-09-10 2015-12-29 The Procter & Gamble Company Deformed web materials
    US8657596B2 (en) 2011-04-26 2014-02-25 The Procter & Gamble Company Method and apparatus for deforming a web
    FR2976473B1 (en) 2011-06-15 2013-07-12 Georgia Pacific France ABSORBENT PAPER ROLL WITH LOW DIMENSIONS
    USD792714S1 (en) * 2015-04-17 2017-07-25 Avintiv Specialty Materials Inc. Nonwoven fabric
    EP3300612A1 (en) * 2016-10-03 2018-04-04 Boegli-Gravures S.A. Paper joint without discontinuity for tube shaped paper wraps closed by means of embossed paper and re-sealable innerliner seal by means of structured innerliner
    EP3590397A4 (en) * 2017-03-02 2020-11-18 Daio Paper Corporation Sanitary tissue paper
    EP3840709B1 (en) 2018-08-22 2023-11-15 The Procter & Gamble Company Disposable absorbent article
    US11987934B2 (en) 2019-03-06 2024-05-21 Kimberly-Clark Worldwide, Inc. Embossed multi-ply tissue product
    AU2020433809A1 (en) * 2020-03-05 2022-10-20 Kimberly-Clark Worldwide, Inc. Embossed multi-ply tissue products

    Family Cites Families (6)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US3867225A (en) * 1969-01-23 1975-02-18 Paper Converting Machine Co Method for producing laminated embossed webs
    US4307141A (en) * 1978-10-10 1981-12-22 American Can Company Multi-ply fibrous sheet structure
    US4320162A (en) * 1980-05-15 1982-03-16 American Can Company Multi-ply fibrous sheet structure and its manufacture
    US4483728A (en) * 1980-07-14 1984-11-20 Kimberly-Clark Corporation Relieved patterned marrying roll
    FR2653793B1 (en) * 1989-10-30 1992-01-03 Kaysersberg Sa
    FR2684598B1 (en) * 1991-12-09 1995-04-07 Kaysersberg Sa METHOD FOR MANUFACTURING LAMINATED EMBOSSED SHEETS. MACHINE FOR ITS IMPLEMENTATION.

    Cited By (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US7285317B2 (en) 2002-03-29 2007-10-23 Fabio Perini, S.P.A. Method and device for producing an embossed web material and product obtained with said method
    US8678806B2 (en) 2008-08-07 2014-03-25 Sca Hygiene Products Gmbh Apparatus and method for ply bonding as well as multi-ply product
    US8999095B2 (en) 2008-08-07 2015-04-07 SCA Hygiene Prodcuts GmbH Apparatus and method for ply bonding as well as multi-ply product

    Also Published As

    Publication number Publication date
    DK0765215T3 (en) 1999-09-27
    ATE177363T1 (en) 1999-03-15
    CA2193088C (en) 2001-04-17
    FI965041A0 (en) 1996-12-16
    DE69508242T2 (en) 1999-07-29
    DE69508242D1 (en) 1999-04-15
    FR2721251A1 (en) 1995-12-22
    FI965041A (en) 1996-12-16
    FR2721251B1 (en) 1996-07-26
    GR3029870T3 (en) 1999-07-30
    CA2193088A1 (en) 1995-12-28
    US5846636A (en) 1998-12-08
    WO1995035205A1 (en) 1995-12-28
    ES2128742T3 (en) 1999-05-16
    EP0765215A1 (en) 1997-04-02

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