US20060185804A1 - Multilayer toilet paper - Google Patents

Multilayer toilet paper Download PDF

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Publication number
US20060185804A1
US20060185804A1 US11/353,522 US35352206A US2006185804A1 US 20060185804 A1 US20060185804 A1 US 20060185804A1 US 35352206 A US35352206 A US 35352206A US 2006185804 A1 US2006185804 A1 US 2006185804A1
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United States
Prior art keywords
toilet paper
multilayer toilet
middle layer
multilayer
layer
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.)
Abandoned
Application number
US11/353,522
Inventor
Giovanni Gambini
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Individual
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Individual
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Publication of US20060185804A1 publication Critical patent/US20060185804A1/en
Abandoned legal-status Critical Current

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    • 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
    • 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
    • D21H27/002—Tissue paper; Absorbent paper
    • 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
    • D21H27/02—Patterned paper

Definitions

  • the present invention refers to a multilayer toilet paper which can be used as toilet paper and/or as a paper for household use.
  • the present invention refers in particular to a toilet paper with three or more plies combined together to obtain a multilayer toilet paper.
  • An objective of the present invention is to realize a multilayer toilet paper with a high softness and a good mechanical resistance.
  • Another objective of the present invention is that of realizing a low-cost multilayer toilet paper.
  • a further objective of the present invention is to realize a multilayer toilet paper with a high softness and good mechanical strength and at the same time low-cost.
  • FIGS. 1 a - 1 d are schematic views of a multilayer paper according to a first embodiment of the invention in which FIG. 1 a is a longitudinal section of a three-plies product and FIGS. 1 b - 1 d are plan views from above of the outer ply, the middle ply and the inner ply;
  • FIGS. 2 a - 2 d are schematic views of a multilayer paper according to a second embodiment of the invention in which FIG. 2 a is a longitudinal section of a three-plied product and FIGS. 2 b - 2 d are plan views from above of the outer ply, the middle ply and the inner ply;
  • FIGS. 3 a - 3 d are schematic views of a multilayer paper according to a third embodiment of the invention, in which FIG. 3 a is a longitudinal section view of a three-plied product and FIGS. 3 b - 3 d are plan views from above of the outer ply, the middle ply and the inner ply.
  • FIG. 4 is a merely schematic view of a longitudinal section of a three-plied product according to a fourth embodiment of the present invention.
  • a multilayer toilet paper is shown, namely with more than one ply (at least three) having a high thickness according to a first embodiment of the invention, wholly indicated with 10 .
  • Said multilayer toilet paper 10 has a first outer layer or ply 20 , a second inner layer or ply 30 and at least one middle layer or ply 40 wave-shaped.
  • Said at least one middle layer 40 is preferably waved along one preferred direction possibly correspondent with a longitudinal direction 50 .
  • said at least one middle layer 40 has an uniform waved section.
  • said preferred direction not necessary corresponds with the longitudinal direction 50 of the extension of the multilayer toilet paper 10 : in fact, it could be also in a leaned position with respect to the longitudinal direction 50 , as shown in FIG. 3 c.
  • Said at least one middle layer 40 shows in section a wave or waves-direction preferably having the same heights, that is to obtain a multilayer toilet paper 10 , having a predetermined thickness overall on the basis of the elevation of the waves of said at least one middle layer 40 .
  • Each wave has preferably an uniform sequence, as those shown in the various illustrative figures, or it could be a wave with both a variable shape and elevation steps (not shown).
  • said at least one middle layer 40 shows in section a wave periodic sequence which is substantially sinusoidal or cosinusoidal or square or triangular or trapezoidal as shown in FIG. 4 , or it can show a subsequent combination of them.
  • said first outer layer 20 and/or said second inner layer 30 have a smooth surface, as shown in FIGS. 1 a , 3 a and 4 .
  • FIGS. 2 a - 2 d are schematic views of a multilayer paper according to a second embodiment of the invention.
  • a multilayer toilet paper is shown, having three plies or layers where, for the sake of easiness, the same reference numerals have been used referring to elements which have the same function.
  • said multilayer toilet paper 10 has a first outer layer or ply 20 , a second inner layer or ply 30 and at least one middle layer or ply 40 , which is wave-shaped.
  • first outer layer 20 and the second inner layer 30 have an embossed surface comprising a plurality of base projections 21 or differently shaped or with a broaden size 22 .
  • the density of the base projections 21 on the embossed surface shows at least 20 projections/cm 2 which can be eventually interspaced by the above projections of different shape 22 with various drawings, as pyramids, flowers, etc.
  • outer and inner layers 20 and 30 can have different numbers of projections between each other, as for instance 40 projections/cm 2 on one side and 25 projections/cm 2 on the other side.
  • Such projections included in the embossed surface can be realized with different heights between each other in a way to confer to the final product a diversified volume along its extension with variable softness.
  • FIGS. 3 a - 3 d are schematic views of a multilayer paper according to a third embodiment of the present invention.
  • a multilayer toilet paper is shown, having three layers or plies where, for the sake of easiness, the same reference numerals are used which have the same function.
  • said multilayer toilet paper 10 has a first outer layer or ply 20 , a second inner layer or ply 30 and at least one middle layer or ply 40 differently wave-shaped.
  • the first outer layer 20 has an embossed surface comprising a plurality of base projections 21 differently shaped and/or of a broader size 22 .
  • the density of the base projections 21 on the embossed surface is at least 20 projections/cm 2 which can be eventually interspaced by the above projections of different shape 22 with various drawings, such as pyramids, flowers, etc.
  • the middle layer 40 is waved in a way to extend along a leaned direction with respect to the longitudinal direction 50 , as well evidenced in FIG. 3 c.
  • the inner layer 30 is, in this particular case, but only for explicative purpose, of the smooth kind.
  • the adhesive 60 is placed in correspondence with a plurality of crests and valleys shown in section of the middle layer 40 in a way to connect said layer to both the outer layer 20 and inner layer 30 .
  • the multilayer toilet paper 10 will appear very soft in the transversal direction, maintaining moreover good mechanical characteristics along the longitudinal direction 50 .
  • the multilayer toilet paper as conceived in the present invention can be subjected to numerous modifications and variations, all comprised in the same inventive concept.

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  • Sanitary Thin Papers (AREA)
  • Paper (AREA)

Abstract

Multilayer toilet paper (10) comprising a first outer layer (20) a second inner layer (30) and at least one middle layer (40) in-between, wherein the at least one middle layer (40) is a waved layer.

Description

  • The present invention refers to a multilayer toilet paper which can be used as toilet paper and/or as a paper for household use.
  • The present invention refers in particular to a toilet paper with three or more plies combined together to obtain a multilayer toilet paper.
  • Recently, it is even more required to have even softer and more tender toilet papers and, at the same time, provided with enough mechanical strength.
  • In recent times, there are methods for realizing multilayer toilet papers through hot-air drying means which however have the disadvantage of a high cost of production.
  • An objective of the present invention is to realize a multilayer toilet paper with a high softness and a good mechanical resistance.
  • Another objective of the present invention is that of realizing a low-cost multilayer toilet paper.
  • A further objective of the present invention is to realize a multilayer toilet paper with a high softness and good mechanical strength and at the same time low-cost.
  • The above objectives are achieved, according to the present invention, realizing a multilayer toilet paper as disclosed in claim 1.
  • Further characteristics of the invention are clearly shown in the successive claims.
  • The characteristics and the advantages of a multilayer toilet paper, according to the present invention, will appear more evident from the following illustrative and non-limiting description referring to the schematic drawings, in which:
  • FIGS. 1 a-1 d are schematic views of a multilayer paper according to a first embodiment of the invention in which FIG. 1 a is a longitudinal section of a three-plies product and FIGS. 1 b-1 d are plan views from above of the outer ply, the middle ply and the inner ply;
  • FIGS. 2 a-2 d are schematic views of a multilayer paper according to a second embodiment of the invention in which FIG. 2 a is a longitudinal section of a three-plied product and FIGS. 2 b-2 d are plan views from above of the outer ply, the middle ply and the inner ply;
  • FIGS. 3 a-3 d are schematic views of a multilayer paper according to a third embodiment of the invention, in which FIG. 3 a is a longitudinal section view of a three-plied product and FIGS. 3 b-3 d are plan views from above of the outer ply, the middle ply and the inner ply.
  • FIG. 4 is a merely schematic view of a longitudinal section of a three-plied product according to a fourth embodiment of the present invention.
  • With reference to the FIGS. 1 a-1 d, a multilayer toilet paper is shown, namely with more than one ply (at least three) having a high thickness according to a first embodiment of the invention, wholly indicated with 10.
  • Said multilayer toilet paper 10 has a first outer layer or ply 20, a second inner layer or ply 30 and at least one middle layer or ply 40 wave-shaped.
  • Said at least one middle layer 40 is preferably waved along one preferred direction possibly correspondent with a longitudinal direction 50.
  • Preferably, said at least one middle layer 40 has an uniform waved section.
  • That is to increase the thickness and the volume of the multilayer toilet paper 10 in a way that it results very soft.
  • Advantageously in this way it is obtained a multilayer toilet paper 10 low-cost and simple to realize.
  • Preferably, said preferred direction not necessary corresponds with the longitudinal direction 50 of the extension of the multilayer toilet paper 10: in fact, it could be also in a leaned position with respect to the longitudinal direction 50, as shown in FIG. 3 c.
  • Said at least one middle layer 40 shows in section a wave or waves-direction preferably having the same heights, that is to obtain a multilayer toilet paper 10, having a predetermined thickness overall on the basis of the elevation of the waves of said at least one middle layer 40.
  • Each wave has preferably an uniform sequence, as those shown in the various illustrative figures, or it could be a wave with both a variable shape and elevation steps (not shown).
  • Preferably said at least one middle layer 40 shows in section a wave periodic sequence which is substantially sinusoidal or cosinusoidal or square or triangular or trapezoidal as shown in FIG. 4, or it can show a subsequent combination of them.
  • Preferably said first outer layer 20 and/or said second inner layer 30 have a smooth surface, as shown in FIGS. 1 a, 3 a and 4.
  • FIGS. 2 a-2 d are schematic views of a multilayer paper according to a second embodiment of the invention.
  • Also in this case, a multilayer toilet paper is shown, having three plies or layers where, for the sake of easiness, the same reference numerals have been used referring to elements which have the same function.
  • Therefore, said multilayer toilet paper 10 has a first outer layer or ply 20, a second inner layer or ply 30 and at least one middle layer or ply 40, which is wave-shaped.
  • Moreover, in this case, the first outer layer 20 and the second inner layer 30 have an embossed surface comprising a plurality of base projections 21 or differently shaped or with a broaden size 22.
  • The density of the base projections 21 on the embossed surface shows at least 20 projections/cm2 which can be eventually interspaced by the above projections of different shape 22 with various drawings, as pyramids, flowers, etc.
  • Moreover, the outer and inner layers 20 and 30 can have different numbers of projections between each other, as for instance 40 projections/cm2 on one side and 25 projections/cm2 on the other side.
  • Such projections included in the embossed surface can be realized with different heights between each other in a way to confer to the final product a diversified volume along its extension with variable softness.
  • FIGS. 3 a-3 d are schematic views of a multilayer paper according to a third embodiment of the present invention.
  • Also in this case, a multilayer toilet paper is shown, having three layers or plies where, for the sake of easiness, the same reference numerals are used which have the same function.
  • Therefore, said multilayer toilet paper 10 has a first outer layer or ply 20, a second inner layer or ply 30 and at least one middle layer or ply 40 differently wave-shaped.
  • The first outer layer 20 has an embossed surface comprising a plurality of base projections 21 differently shaped and/or of a broader size 22.
  • The density of the base projections 21 on the embossed surface is at least 20 projections/cm2 which can be eventually interspaced by the above projections of different shape 22 with various drawings, such as pyramids, flowers, etc.
  • The middle layer 40 is waved in a way to extend along a leaned direction with respect to the longitudinal direction 50, as well evidenced in FIG. 3 c.
  • The inner layer 30 is, in this particular case, but only for explicative purpose, of the smooth kind.
  • In all these examples the link with the layers or plies is realized thanks to the supply of adhesive, in the scheme with reference 60.
  • The adhesive 60 is placed in correspondence with a plurality of crests and valleys shown in section of the middle layer 40 in a way to connect said layer to both the outer layer 20 and inner layer 30.
  • In this way the multilayer toilet paper 10 will appear very soft in the transversal direction, maintaining moreover good mechanical characteristics along the longitudinal direction 50.
  • It will appear evident that the multilayer toilet paper realized according to the present invention achieves the objectives as above described.
  • The multilayer toilet paper as conceived in the present invention can be subjected to numerous modifications and variations, all comprised in the same inventive concept.
  • Moreover, the materials practically used, as well as size and components, can be whichever according to the technical requirements.

Claims (15)

1. Multilayer toilet paper (10) comprising a first outer layer (20), a second inner layer (30) and at least one middle layer (40) in-between characterized in that said at least one middle layer (40) is a waved layer.
2. Multilayer toilet paper (10) according to claim 1, characterized in that said at least one middle layer (40) is waved along a preferred direction.
3. Multilayer toilet paper (10) according to claim 1, characterized in that said at least one middle layer (40) has an uniform waved section.
4. Multilayer toilet paper (10) according to claim 1, characterized in that said at least one middle layer (40) has in section a cyclic wave trend substantially sinusoidal or cosinusoidal or square or triangular or trapezoidal or a subsequent combination of them.
5. Multilayer toilet paper (10) according to claim 2, characterized in that said at least one middle layer (40) has a waved section along a preferred direction correspondent with a longitudinal direction (50).
6. Multilayer toilet paper (10) according to claim 3, characterized in that said at least one middle layer (40) has a waved section along a preferred direction correspondent with a longitudinal direction (50).
7. Multilayer toilet paper (10) according to claim 4, characterized in that said at least one middle layer (40) has a waved section along a preferred direction correspondent with a longitudinal direction (50).
8. Multilayer toilet paper (10) according to claim 2, characterized in that said at least one middle layer (40) has a waviness that develops along a leaning direction with respect to a longitudinal direction (50).
9. Multilayer toilet paper (10) according to claim 3, characterized in that said at least one middle layer (40) has a waviness that develops along a leaning direction with respect to a longitudinal direction (50).
10. Multilayer toilet paper (10) according to claim 4, characterized in that said at least one middle layer (40) has a waviness that develops along a leaning direction with respect to a longitudinal direction (50).
11. Multilayer toilet paper (10) according to claim 1 characterized in that said at least one first outer layer (20) and/or said second inner layer (30) have a smooth surface.
12. Multilayer toilet paper (10) according to claim 1 characterized in that said first outer layer (20) and/or said second inner layer (30) have an embossed surface comprising a plurality of projections (21,22).
13. Multilayer toilet paper (10) according to claim 12, characterized in that said embossed surface has at least 20 projections/cm2.
14. Multilayer toilet paper (10) according to claim 12, characterized in that said embossed surface comprises a plurality of base projections (21) or of different shape and or broader size (22).
15. Multilayer toilet paper (10) according to claim 13, characterized in that said embossed surface comprises a plurality of base projections (21) or of different shape and or broader size (22).
US11/353,522 2005-02-21 2006-02-13 Multilayer toilet paper Abandoned US20060185804A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000258A ITMI20050258A1 (en) 2005-02-21 2005-02-21 MULTILAYER HYGIENIC PAPER
ITMI2005A000258 2005-02-21

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US20060185804A1 true US20060185804A1 (en) 2006-08-24

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD821103S1 (en) * 2016-02-24 2018-06-26 Avintiv Specialty Materials Inc. Nonwoven fabric
EP3489006A1 (en) * 2017-11-22 2019-05-29 Navigator Tissue Rodao, S.A. Absorbent paper product with multiple layers and production process

Citations (11)

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US3738905A (en) * 1970-04-29 1973-06-12 Kimberly Clark Co Paper toweling material and method of combining into multi ply products
US5830558A (en) * 1996-05-23 1998-11-03 Procter & Gamble Company Multiple ply tissue paper having piles with and without continuous network regions
US5865824A (en) * 1997-04-21 1999-02-02 Chen; Fung-Jou Self-texturing absorbent structures and absorbent articles made therefrom
US5906711A (en) * 1996-05-23 1999-05-25 Procter & Gamble Co. Multiple ply tissue paper having two or more plies with different discrete regions
US20030026953A1 (en) * 2001-06-15 2003-02-06 Heinz-Jurgen Muller Multi-ply tissue paper product and method for producing same
US20030125181A1 (en) * 2001-12-31 2003-07-03 Ming-Ta Wei Folding structure of a flier
US20030157300A1 (en) * 2002-02-15 2003-08-21 Burazin Mark Alan Wide wale tissue sheets and method of making same
US20030198788A1 (en) * 2002-02-26 2003-10-23 Anders Andersson 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
US20030215602A1 (en) * 2002-02-26 2003-11-20 Anders Andersson Method and device for producing a multi-ply web of flexible material, such as paper and nonwoven, and multi-ply material and product produced by the method
US20040028935A1 (en) * 2001-11-22 2004-02-12 Harald Hauke Paper towel
US6746569B1 (en) * 2000-10-31 2004-06-08 Kimberly-Clark Worldwide, Inc. Nested rolled paper product

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IT1215063B (en) * 1986-10-10 1990-01-31 Mira Lanza Spa NO HIGH RESISTANCE CONTINMECHANICAL MANUFACTURING PROCESS AND NO ABSORBING POWER OF SHEETS OF ABSORBENT PAPER FOR LIQUIDS AND PAPER PRODUCT OF THE DISPOSABLE OR LIMITED EDITION TYPE PAPER COMPOSED IN SHEETS SO OBTAINED FIBERFUL FOODS CONTAINED FROM FIBER FISH SURFACE AND ONE INTERLAY
US7799968B2 (en) * 2001-12-21 2010-09-21 Kimberly-Clark Worldwide, Inc. Sponge-like pad comprising paper layers and method of manufacture
SE0203801D0 (en) * 2002-12-20 2002-12-20 Sca Hygiene Prod Ab Preparation of a colored patterned web

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3738905A (en) * 1970-04-29 1973-06-12 Kimberly Clark Co Paper toweling material and method of combining into multi ply products
US5830558A (en) * 1996-05-23 1998-11-03 Procter & Gamble Company Multiple ply tissue paper having piles with and without continuous network regions
US5906711A (en) * 1996-05-23 1999-05-25 Procter & Gamble Co. Multiple ply tissue paper having two or more plies with different discrete regions
US5865824A (en) * 1997-04-21 1999-02-02 Chen; Fung-Jou Self-texturing absorbent structures and absorbent articles made therefrom
US6746569B1 (en) * 2000-10-31 2004-06-08 Kimberly-Clark Worldwide, Inc. Nested rolled paper product
US20030026953A1 (en) * 2001-06-15 2003-02-06 Heinz-Jurgen Muller Multi-ply tissue paper product and method for producing same
US20040028935A1 (en) * 2001-11-22 2004-02-12 Harald Hauke Paper towel
US20030125181A1 (en) * 2001-12-31 2003-07-03 Ming-Ta Wei Folding structure of a flier
US20030157300A1 (en) * 2002-02-15 2003-08-21 Burazin Mark Alan Wide wale tissue sheets and method of making same
US20030198788A1 (en) * 2002-02-26 2003-10-23 Anders Andersson 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
US20030215602A1 (en) * 2002-02-26 2003-11-20 Anders Andersson Method and device for producing a multi-ply web of flexible material, such as paper and nonwoven, and multi-ply material and product produced by the method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD821103S1 (en) * 2016-02-24 2018-06-26 Avintiv Specialty Materials Inc. Nonwoven fabric
EP3489006A1 (en) * 2017-11-22 2019-05-29 Navigator Tissue Rodao, S.A. Absorbent paper product with multiple layers and production process

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Publication number Publication date
EP1693513A1 (en) 2006-08-23
ITMI20050258A1 (en) 2006-08-22

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