EP1159487B1 - Produit en papier absorbant comprenant deux ou trois plis - Google Patents
Produit en papier absorbant comprenant deux ou trois plis Download PDFInfo
- Publication number
- EP1159487B1 EP1159487B1 EP00900524A EP00900524A EP1159487B1 EP 1159487 B1 EP1159487 B1 EP 1159487B1 EP 00900524 A EP00900524 A EP 00900524A EP 00900524 A EP00900524 A EP 00900524A EP 1159487 B1 EP1159487 B1 EP 1159487B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- embossed
- product
- protuberances
- ply
- plies
- 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
Links
Images
Classifications
-
- 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
-
- 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
Definitions
- the present invention relates to absorbent paper products and more. particularly in cellulose wadding, for sanitary or domestic use and aims to sheet consisting of at least two plies, one of which is embossed intended for the realization of essentially toilet paper, but also tissues, towels or paper towels.
- a generally creped absorbent paper of low grammage designated: cellulose wadding or wadding.
- cellulose wadding or wadding We take advantage of the capacity of elongation of the structure imparted for example by creping to emboss the sheet, i.e. permanently deform it in places and obtain protrusions on one side corresponding to recessed areas on the other side.
- the present invention relates to paper transformed into a dry part.
- embossing patterns consist of a repetition on a geometric basis of elementary protuberances of small cross section and simple geometric shape.
- An example is described in US-A-3,414,459 which relates to a sheet with two or three plies, that is to say made up of a plurality of elementary sheets, called plies, bonded or glued together.
- the folds are embossed with a frequency of distribution of the protrusions and a height of the protrusions adapted to the production of water-absorbing products such as paper towels, the number of elements ranging from 5 to 30 per cm 2 .
- the Applicant has developed, for toilet paper in particular, patterns whose number of elements is greater, ranging from 30 to 80 per cm 2 .
- absorbent paper products consist of two plies but obtained using a different combination technique.
- a fold or a set of two superposed folds is embossed and, on the other hand, a second fold by means of two separate embossing devices.
- the first fold as well as the second fold are embossed according to relief patterns made up of protuberances.
- the density of patterns necessarily remains low: less than 20 protuberances / cm 2 for this type of product.
- the two folds are associated by means of a matching cylinder so that the distal surfaces of the protrusions of the two superposed folds are arranged opposite the surfaces located between two protrusions in the plane of the second fold. This technique is also called the “nested” process.
- the two are embossed folds. If the embossing brings thickness to each of the folds it does however cause a appreciable reduction in its breaking strength. Indeed, the mechanical work on the sheet is accompanied by a loosening of the fiber bonds in the embossed areas.
- the first objective of the invention is therefore to produce a double sheet whose tensile strength is improved compared to an embossed double sheet of same thickness.
- the second objective of the invention is to produce a double sheet, the thickness and / or visibility of the embossing pattern is improved compared to a embossed double sheet of the prior art while having good resistance to break.
- a sheet satisfying one or the other of the two objectives referred to above, consisting of two plies of cellulose wadding weighing 10 to 40 g / m 2 each, one of which is embossed with relief patterns, consisting at least in part of discrete protrusions oriented towards the inside of the sheet, and the other is non-embossed, is characterized in that the embossed fold has on at least a portion of surface at least 30 protuberances per cm 2 whose surface at the top is less than 1 mm 2 , preferably less than 0.7 mm 2 .
- a double sheet thus characterized has the same thickness as a double sheet made with two folds embossed in the same manner as the embossed fold of the invention and assembled in position spikes / spikes.
- the area at the top of the protuberances is lower the more the number of the latter is locally high. It is preferably less than 0.7 mm 2 for 30 protuberances per cm 2 and preferably less than or equal to 0.4 mm 2 for 50 protuberances per cm 2 .
- thickness in the present technical field, is meant the thickness measured on a stack of a number of sheets (12 folds for example) on which is applied a light pressure (2 kPa for example). It follows that the thickness takes into account a certain resistance to crushing of the structure. So without want to be bound by an explanation, the conservation of the thickness of the structure of the invention results from the better resistance to crushing of a fold which has been embossed with a high density pattern.
- the product according to the invention has, on at least 50% of the total surface, at least 30 protuberances per cm 2 .
- the number of protrusions is at least 50 per cm 2 .
- the product has a second motif embossing between said surface portions.
- this pattern can be linear type, i.e. made up of protuberances whose surface at the top is linear form.
- the product 1 according to the invention comprises two folds, an embossed fold 2, and an unembossed or smooth fold 4.
- the embossed fold comprises protuberances 11 distributed at a constant pitch determined over a portion of area.
- the protuberances of the embossed fold are oriented inward.
- the two plies are preferably linked together. In in particular, they can be linked together at the distal surfaces of the protrusions of the embossed fold.
- the two plies are linked by gluing
- the product according to the invention has a grammage of about 20 to 80 g / m 2 .
- Each of the plies is made of cellulose wadding.
- Cellulose wadding is a light weight crepe paper of between 10 and 40 g / cm 2 which has been dried on a heated cylinder and from which it has been detached by means of a metal blade, called a creping blade.
- the embossed ply On surface portions which together represent at least 30% of the total surface, the embossed ply has a pattern density greater than 30 protuberances, cm 2 and less than 300, preferably a density less than 90 protuberances / cm 2 . It can also additionally present one or more types of different patterns and whose pattern densities are different. The protrusions can then be of different height, and the fold has patterns of different levels.
- European patent applications EP-A-0 426 548 and EP-A-0 797 705 illustrate products embossed according to these principles but comprising two embossed plies.
- the second fold is not embossed.
- the fibrous and / or chemical composition of the pleats can be the same or different.
- the non-embossed fold may have a fibrous composition essentially based on long fibers such as coniferous fibers, and the fold embossed, a fibrous composition essentially based on short fibers. This combination provides a more resistant product without sacrificing softness provided by short fibers.
- Non-embossed ply may include a tough additive temporary or possibly permanent wet. If this additive is already present in a certain amount in the embossed fold, the non-embossed fold may contain one larger quantity.
- a wet resistant additive is a compound of polyamine epichlorohydrin type, marketed under the name KYMENE SLX by the HERCULES company.
- the embossed fold may include a softener or debonding.
- the sheet thus formed has very good wet strength and therefore good solidity due in particular to the composition of the non-embossed ply. She offers moreover a surface smoothness by the choice of the fibrous composition and chemical of the embossed fold.
- Each fold can also consist of one or more layers forming a laminate.
- the layers in this case may also have a fibrous composition and / or different chemical.
- the sheet has been shown with the two folds 2 and 4 superimposed. They are willing so that the protrusions are inside the sheet.
- the two folds are linked to each other by means of a adhesive substance interposed between the tops of the fold protrusions represented who come into contact.
- the adhesive substance is then preferably deposited on the highest vertices of the elements of the pattern, and is advantageously colored to bring out the details. So when the embossed fold presents protuberances whose vertices are at different levels, we realize a partially combined product on a small surface. We get a product particularly flexible when the surface is less than 5%.
- FIG. 2 a machine for manufacturing such sheet structure. It essentially consists of elements that are part of the state of the art.
- a first embossing cylinder 10 has been engraved in a pattern with spikes of a shape adapted to the desired protuberances.
- the process consists of emboss a ply of cellulose wadding 20, unwound from a spool not shown, between the embossing cylinder 10 and a rubber cylinder 12 then coming assemble by means of a matching cylinder 14 a ply of unembossed cellulose wadding 40, also unwound from a reel not shown, on the first 20 then that it is still in contact with the embossing cylinder.
- the products according to the invention have very advantageous characteristics compared to products made up of two plies existing on the market.
- the pattern is that which is currently marketed under the brand LOTUS and includes 80 protuberances per cm 2 .
- the surface at the top of the latter is less than 0.4 mm 2 .
- the standard product is then combined in tip / tip mode.
- the pattern is made up of surface protrusions at the apex also less than 1 mm 2 . They are distributed in alignments along which the pattern density is greater than 30 protuberances per cm 2 , the alignments being separated from each other with sufficient spacing to allow assembly in the nested position.
- the average density is 15 p / cm 2 .
- the pattern is the same as for B but the specific embossing pressure was higher. This gives a higher thickness than for the standard product assembled in "nested".
- an embossed product was produced with a pattern consisting of protrusions on the engraved cylinder 1.3 mm high, at a rate of 7 per cm 2 .
- the standard process with “nested” assembly of the two embossed plies gives a sheet thickness of 0.28 mm for a crosswise resistance of 80 N / m.
- a product with a single embossed ply has a loss in thickness of almost 20% even if a slight increase in strength is observed, less than 9%.
- an engraved cylinder 10 having first spikes and second spikes.
- the first pins are distributed according to a first pattern having on at least one surface portion at least 30 pins per cm 2 , and preferably 50 pins per cm 2 .
- the second pins are distributed in a second pattern, the number of second pins is lower.
- the vertices of the second pins are at a level higher than those of the first pins.
- the second protrusions of the fold 20 formed on the cylinder 10 receive the glue from the glue cylinder 16.
- the connection with the non-embossed fold 40 is thus ensured by the second protrusions.
- a second non-embossed ply 40 ′ represented by an arrow in FIG. 2 is introduced between the cylinder 10 thus etched and the matching cylinder 14, in particular by correctly choosing the quantity of adhesive applied to the seconds. protrusions of the fold 20 and the pressure of the matching cylinder, the glue is distributed over the two faces of the fold 40 and the formation of a bond between the fold 40 'and the fold 40 at the top of the second protuberances. This produces a three-ply product that is both thick and flexible. Instead of applying the adhesive to the tops of the protrusions, it can be sprayed on both sides of the first non-embossed ply.
Landscapes
- Paper (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
- Laminated Bodies (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Description
- la figure 1 représente schématiquement une coupe agrandie de la structure réalisée conformément à l'invention ;
- la figure 2 représente une installation permettant de réaliser l'invention.
Claims (9)
- Produit en papier absorbant d'un grammage d'environ 20 à environ 80 g/m2 comprenant, un pli gaufré comportant des motifs en relief consistant au moins en partie en des protubérances discrètes orientées vers l'intérieur de la structure et un pli non gaufré, caractérisé en ce que le pli gaufré présente sur au moins 30% de la surface totale au moins 30 protubérances par cm2 dont la surface au sommet est inférieure à 1 mm2 de préférence inférieure à 0,7 mm2.
- Produit selon la revendication précédente, caractérisé en ce que le pli gaufré présente sur au moins 50% de la surface totale au moins 30 protubérances par cm2.
- Produit selon l'une des revendications précédentes, caractérisé en ce que le nombre de protubérances est au moins de 50 par cm2, et leur surface au sommet est inférieure ou égale à 0,4 mm2.
- Produit selon l'une des revendications précédentes, caractérisé en ce qu'il présente un second motif de protubérances de gaufrage entre lesdites portions de surface.
- Produit selon l'une des revendications précédentes, caractérisé en ce que les plis sont associés entre eux.
- Produit selon la revendication précédente, caractérisé en ce que les plis sont associés par liaison des surfaces distales d'au moins une partie des protubérances du pli gaufré audit pli non gaufré.
- Produit selon les revendications 4 et 6, caractérisé en ce que la liaison est obtenue par collage des protubérances du second motif au moins en partie.
- Produit selon l'une des revendications 4 à 7, caractérisé en ce qu'il comporte un deuxième pli non gaufré.
- Procédé pour réaliser un produit selon la revendication 8, caractérisé en ce qu'il consiste à gaufrer un pli de papier sur un cylindre gravé comportant des picots dont les sommets sont à des niveaux différents, à mettre en contact un ensemble constitué de deux plis de papier non gaufrés superposés avec les sommets desdites protubérances par l'intermédiaire d'un adhésif et à exercer une pression pour assurer la liaison du pli gaufré avec les deux plis non gaufrés.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60000977.7T DE60000977T3 (de) | 1999-01-05 | 2000-01-05 | Zwei- oder dreilagiges saugfähiges papierprodukt |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9900033A FR2788066B1 (fr) | 1999-01-05 | 1999-01-05 | Nouveau produit en papier absorbant comprenant deux plis |
FR9900033 | 1999-01-05 | ||
PCT/FR2000/000007 WO2000040800A1 (fr) | 1999-01-05 | 2000-01-05 | Produit en papier absorbant comprenant deux plis |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1159487A1 EP1159487A1 (fr) | 2001-12-05 |
EP1159487B1 true EP1159487B1 (fr) | 2002-12-11 |
EP1159487B3 EP1159487B3 (fr) | 2010-06-16 |
Family
ID=9540630
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00900524A Expired - Lifetime EP1159487B3 (fr) | 1999-01-05 | 2000-01-05 | Produit en papier absorbant comprenant deux ou trois plis |
Country Status (11)
Country | Link |
---|---|
US (1) | US6656569B1 (fr) |
EP (1) | EP1159487B3 (fr) |
AT (1) | ATE229594T1 (fr) |
CA (1) | CA2357832C (fr) |
DE (1) | DE60000977T3 (fr) |
DK (1) | DK1159487T5 (fr) |
ES (1) | ES2187436T7 (fr) |
FR (1) | FR2788066B1 (fr) |
PT (1) | PT1159487E (fr) |
TR (1) | TR200101919T2 (fr) |
WO (1) | WO2000040800A1 (fr) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2260290T3 (es) * | 2000-09-27 | 2006-11-01 | Georgia-Pacific France | Procedimiento de fabricacion de una hoja de papel absorbente de capas multiples. |
IT1314877B1 (it) * | 2000-11-22 | 2003-01-16 | Perini Fabio Spa | Metodo e dispositivo per la produzione di un materiale cartaceo infoglio plurivelo e prodotto cosi'ottenuto |
US7407560B2 (en) * | 2001-02-16 | 2008-08-05 | The Procter & Gamble Company | Lotioned and embossed tissue paper |
US20050230069A1 (en) * | 2001-02-16 | 2005-10-20 | Klaus Hilbig | Method of making a thick and smooth embossed tissue |
EP1319748B9 (fr) * | 2001-12-12 | 2011-11-02 | Georgia-Pacific France | Feuille multiple de papier absorbant |
ES2371547T3 (es) * | 2003-03-07 | 2012-01-05 | Georgia-Pacific France | Producto en papel absorbente gofrado. |
US7694379B2 (en) | 2005-09-30 | 2010-04-13 | First Quality Retail Services, Llc | Absorbent cleaning pad and method of making same |
US7962993B2 (en) | 2005-09-30 | 2011-06-21 | First Quality Retail Services, Llc | Surface cleaning pad having zoned absorbency and method of making same |
DK1878830T3 (da) * | 2006-07-11 | 2010-01-11 | Procter & Gamble | Flerlagstissueartikel, som har en bestemt udformning af prægede fordybninger og indeholder en blödgörende lotion |
FR2928383B1 (fr) * | 2008-03-06 | 2010-12-31 | Georgia Pacific France | Feuille gaufree comportant un pli en materiau hydrosoluble et procede de realisation d'une telle feuille. |
WO2009117794A1 (fr) * | 2008-03-24 | 2009-10-01 | Wagner Do Brasil Ltda | Procédé de fabrication d'un produit absorbant multicouche et produit ainsi obtenu |
US8287986B2 (en) * | 2008-05-27 | 2012-10-16 | Georgia-Pacific Consumer Products Lp | Ultra premium bath tissue |
CN102143838B (zh) * | 2008-08-07 | 2016-08-31 | Sca卫生产品有限责任公司 | 用于层结合的设备和方法以及多层产品 |
US9283730B2 (en) | 2012-08-17 | 2016-03-15 | Kimberly-Clark Worldwide, Inc. | High basis weight creped tissue |
US8894813B2 (en) | 2012-08-17 | 2014-11-25 | Kimberly-Clark Worldwide, Inc. | Absorbent barrier tissue |
US20140050890A1 (en) | 2012-08-17 | 2014-02-20 | Kenneth John Zwick | High Basis Weight Tissue with Low Slough |
AU2015387523B2 (en) | 2015-03-20 | 2020-06-25 | Kimberly-Clark Worldwide, Inc. | A soft high basis weight tissue |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3414459A (en) * | 1965-02-01 | 1968-12-03 | Procter & Gamble | Compressible laminated paper structure |
FR2653793B1 (fr) | 1989-10-30 | 1992-01-03 | Kaysersberg Sa | |
GB2255745A (en) * | 1991-05-16 | 1992-11-18 | Kent Paper Products Limited | Paper or like laminate |
FR2728152B1 (fr) * | 1994-12-16 | 1997-01-24 | Kaysersberg Sa | Papier absorbant gaufre a motifs combines |
-
1999
- 1999-01-05 FR FR9900033A patent/FR2788066B1/fr not_active Expired - Lifetime
-
2000
- 2000-01-05 TR TR2001/01919T patent/TR200101919T2/xx unknown
- 2000-01-05 WO PCT/FR2000/000007 patent/WO2000040800A1/fr active IP Right Grant
- 2000-01-05 CA CA002357832A patent/CA2357832C/fr not_active Expired - Lifetime
- 2000-01-05 EP EP00900524A patent/EP1159487B3/fr not_active Expired - Lifetime
- 2000-01-05 US US09/869,793 patent/US6656569B1/en not_active Expired - Lifetime
- 2000-01-05 AT AT00900524T patent/ATE229594T1/de active
- 2000-01-05 DE DE60000977.7T patent/DE60000977T3/de not_active Expired - Lifetime
- 2000-01-05 ES ES00900524T patent/ES2187436T7/es active Active
- 2000-01-05 PT PT00900524T patent/PT1159487E/pt unknown
- 2000-01-05 DK DK00900524.0T patent/DK1159487T5/da active
Also Published As
Publication number | Publication date |
---|---|
DE60000977D1 (de) | 2003-01-23 |
ES2187436T8 (es) | 2011-09-22 |
CA2357832C (fr) | 2008-09-16 |
DK1159487T3 (da) | 2003-04-14 |
FR2788066B1 (fr) | 2001-02-16 |
DK1159487T5 (da) | 2010-10-11 |
EP1159487B3 (fr) | 2010-06-16 |
EP1159487A1 (fr) | 2001-12-05 |
TR200101919T2 (tr) | 2002-03-21 |
DE60000977T3 (de) | 2018-07-19 |
WO2000040800A1 (fr) | 2000-07-13 |
ES2187436T3 (es) | 2003-06-16 |
PT1159487E (pt) | 2003-04-30 |
ATE229594T1 (de) | 2002-12-15 |
CA2357832A1 (fr) | 2000-07-13 |
DE60000977T2 (de) | 2003-07-24 |
ES2187436T7 (es) | 2011-08-01 |
FR2788066A1 (fr) | 2000-07-07 |
US6656569B1 (en) | 2003-12-02 |
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