EP1159487A1 - Produit en papier absorbant comprenant deux plis - Google Patents
Produit en papier absorbant comprenant deux plisInfo
- Publication number
- EP1159487A1 EP1159487A1 EP00900524A EP00900524A EP1159487A1 EP 1159487 A1 EP1159487 A1 EP 1159487A1 EP 00900524 A EP00900524 A EP 00900524A EP 00900524 A EP00900524 A EP 00900524A EP 1159487 A1 EP1159487 A1 EP 1159487A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- embossed
- fold
- product according
- product
- protrusions
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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 cellulose wadding, for sanitary or domestic use and is aimed at a sheet made up of at least two plies, one of which is embossed intended for the production of essentially toilet paper, but also handkerchiefs, towels or paper towels.
- a generally creped absorbent paper of low grammage is used, designated: cellulose wadding or tissue.
- cellulose wadding or tissue we take advantage of the elongation capacity of the structure provided, for example by creping, to emboss the sheet, that is to say to deform it in places permanently and to obtain protuberances on a face corresponding to hollow areas on the other side.
- embossing operation is carried out either on paper with high humidity, that is to say in the wet part of the paper machine, or on paper with low humidity, ie ie in transformation.
- 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 Patent 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 protuberances and a height of the protuberances adapted to the production of water-absorbent 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 superimposed 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 protrusions / cm 'for this type of product.
- the two folds are associated by means of a matching cylinder so that the distal surfaces of the protuberances of the two superposed folds are arranged opposite the surfaces located between two protuberances in the plane of the second fold. This technique is also called the “nested” process.
- the two plies are embossed. If the embossing brings thickness to each of the folds, it however results in a significant reduction in its resistance to breakage. Indeed, the mechanical work on the sheet is accompanied by a loosening of the interfiber connections in the embossed areas.
- the first objective of the invention is therefore to produce a double sheet, the breaking strength of which is improved compared to an embossed double sheet of the same thickness.
- the thickness of the sheet and / or the quality of the marking of the embossing pattern is increased, but it is limited by the need not to induce too great a loss in tensile strength.
- the second objective of the invention is to produce a double sheet whose thickness and / or the visibility of the embossing pattern is improved compared to a double embossed sheet of the prior art while having good breaking strength. .
- 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 produced with two embossed folds in the same way as the embossed fold of the invention and assembled in the point / point position. This property was observed only for densities of the pattern at least equal to 30 spikes per cm 2 on surface portions covering at least 30% of the total surface.
- the surface 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, one understands the thickness measured on a stack of a certain number of sheets (12 folds for example) on which one applies a light pressure (2 kPa for example). It follows that the thickness takes into account a certain resistance to crushing of the structure. Thus without wishing 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 embossing pattern between said surface portions.
- this pattern can be of the linear type, that is to say made up of protuberances whose surface at the top is of linear shape.
- FIG. 1 schematically shows an enlarged section of the structure produced in accordance with the invention
- the product 1 according to the invention comprises two folds, an embossed fold 2, and a non-embossed or smooth fold 4.
- the embossed fold comprises protuberances 11 distributed at a constant pitch determined over a portion of surface .
- the protuberances of the embossed fold are oriented inward.
- the two folds are preferably linked together. 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 basis weight 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 fold On surface portions together representing at least 30% of the surface total, the embossed fold has a density of patterns 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 No. 0 426 548 and No. 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 ply may have a fibrous composition essentially based on long fibers such as coniferous fibers, and the embossed ply, a fibrous composition essentially based on short fibers. This combination makes it possible to obtain a more resistant product without sacrificing the softness brought by the short fibers.
- the non-embossed ply may include a temporary or possibly permanent wet strength additive. If this additive is already present in a certain amount in the embossed fold, the non-embossed fold may contain a larger amount.
- a wet resistant additive is a compound of the polyamine epichlorohydrin type, marketed under the name KYMENE SLX by the company HERCULES.
- the embossed fold may include a softener or unbinding.
- the sheet thus formed has very good wet strength and therefore good solidity, in particular due to the composition of the non-embossed ply. It also offers a soft surface by the choice of the fibrous and chemical composition of the embossed ply.
- Each ply can also consist of one or more layers forming a laminate.
- the layers in this case may also have a different fibrous and / or chemical composition.
- the sheet has been shown with the two folds 2 and 4 superimposed. They are arranged so that the protrusions are inside the sheet.
- the two plies can be linked to one another in any manner known to those skilled in the art, such as, for example, mechanically by knurling, that is to say by passing the sheet between a knurl and a smooth counter-cylinder.
- the two plies are bonded to each other by means of an adhesive substance interposed between the tops of the protrusions of the plies shown which come into contact.
- the adhesive substance is then preferably deposited on the highest vertices of the elements of the pattern, and is advantageously colored in order to bring out the details.
- a partially associated product is produced on a small surface.
- a particularly flexible product is obtained when the surface is less than 5%.
- a first embossing cylinder 10 has been engraved according to a pattern with spikes of shape adapted to the desired protuberances.
- the process consists in embossing a ply of cellulose wadding 20, unwound from a spool, not shown, between the embossing cylinder 10 and a rubber cylinder 12 and then coming to assemble by means of a matching cylinder 14 a ply of non-embossed cellulose wadding 40, also unwound from a spool, not shown, on the first 20 while it is still in contact with the embossing cylinder.
- adhesive substance preferably water-based, was applied to the tops of the embossed ply, by means of a sizing cylinder 16.
- the products according to the invention have very advantageous characteristics compared to products made up of two folds 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 top 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".
- the softness of the product of the invention is surprisingly not affected compared to the standard product.
- 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 is used 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 smaller.
- the vertices of the second pins are at a level higher than those of the first pins.
- this cylinder allows it to emboss a fold 20 according to first protrusions corresponding to the first spikes and second protrusions corresponding to the second spikes.
- the embossing is on two levels. Because of their prominence, the second protrusions of the fold 20 formed on the cylinder 10 receive the glue from the gluing cylinder 16.
- 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. protuberances 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
Claims
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 true EP1159487A1 (fr) | 2001-12-05 |
EP1159487B1 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 |
---|---|---|---|---|
ATE320341T1 (de) * | 2000-09-27 | 2006-04-15 | Georgia Pacific France | Verfahren zur herstellung einer mehrlagigen saugfähigen papierbahn |
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 |
EP1455014B1 (fr) * | 2003-03-07 | 2011-08-17 | Georgia-Pacific France | Produit en papier absorbant gaufré |
US7962993B2 (en) | 2005-09-30 | 2011-06-21 | First Quality Retail Services, Llc | Surface cleaning pad having zoned absorbency and method of making same |
US7694379B2 (en) | 2005-09-30 | 2010-04-13 | First Quality Retail Services, Llc | Absorbent cleaning pad and method of making same |
EP1878830B1 (fr) * | 2006-07-11 | 2009-09-02 | The Procter & Gamble Company | Article de papier tissu multicouche avec une configuration particulière de creux gaufrés, et contenant une lotion adoucissante |
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 |
CA2725378C (fr) * | 2008-05-27 | 2016-11-22 | Georgia-Pacific Consumer Products Lp | Tissu de bain de premiere qualite |
WO2010015281A1 (fr) * | 2008-08-07 | 2010-02-11 | Sca Hygiene Products Gmbh | Appareil et procédé pour le collage de plis, et produit multi-plis |
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 EP EP00900524A patent/EP1159487B3/fr not_active Expired - Lifetime
- 2000-01-05 CA CA002357832A patent/CA2357832C/fr not_active Expired - Lifetime
- 2000-01-05 ES ES00900524T patent/ES2187436T7/es active Active
- 2000-01-05 DK DK00900524.0T patent/DK1159487T5/da active
- 2000-01-05 PT PT00900524T patent/PT1159487E/pt unknown
- 2000-01-05 DE DE60000977.7T patent/DE60000977T3/de not_active Expired - Lifetime
- 2000-01-05 WO PCT/FR2000/000007 patent/WO2000040800A1/fr active IP Right Grant
- 2000-01-05 AT AT00900524T patent/ATE229594T1/de active
- 2000-01-05 US US09/869,793 patent/US6656569B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO0040800A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2000040800A1 (fr) | 2000-07-13 |
DK1159487T3 (da) | 2003-04-14 |
DE60000977D1 (de) | 2003-01-23 |
ATE229594T1 (de) | 2002-12-15 |
CA2357832A1 (fr) | 2000-07-13 |
ES2187436T3 (es) | 2003-06-16 |
PT1159487E (pt) | 2003-04-30 |
FR2788066B1 (fr) | 2001-02-16 |
FR2788066A1 (fr) | 2000-07-07 |
ES2187436T8 (es) | 2011-09-22 |
DE60000977T2 (de) | 2003-07-24 |
DK1159487T5 (da) | 2010-10-11 |
DE60000977T3 (de) | 2018-07-19 |
ES2187436T7 (es) | 2011-08-01 |
EP1159487B1 (fr) | 2002-12-11 |
EP1159487B3 (fr) | 2010-06-16 |
CA2357832C (fr) | 2008-09-16 |
US6656569B1 (en) | 2003-12-02 |
TR200101919T2 (tr) | 2002-03-21 |
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