EP1362953B1 - Procédé de marquage d'une feuille de papier, feuille ayant un motif de type filigrane - Google Patents

Procédé de marquage d'une feuille de papier, feuille ayant un motif de type filigrane Download PDF

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Publication number
EP1362953B1
EP1362953B1 EP02010746A EP02010746A EP1362953B1 EP 1362953 B1 EP1362953 B1 EP 1362953B1 EP 02010746 A EP02010746 A EP 02010746A EP 02010746 A EP02010746 A EP 02010746A EP 1362953 B1 EP1362953 B1 EP 1362953B1
Authority
EP
European Patent Office
Prior art keywords
sheet
roll
additive material
additive
preceedings
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP02010746A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1362953A1 (fr
Inventor
Jean-Louis Neveu
Nicolas Pommier
Joel Hungler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Essity Operations France SAS
Original Assignee
Georgia Pacific France SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=29265924&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1362953(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority to EP02010746A priority Critical patent/EP1362953B1/fr
Priority to AT02010746T priority patent/ATE295448T1/de
Priority to DE60204120T priority patent/DE60204120T2/de
Priority to ES02010746T priority patent/ES2241925T3/es
Priority to DK02010746T priority patent/DK1362953T3/da
Application filed by Georgia Pacific France SAS filed Critical Georgia Pacific France SAS
Priority to PT02010746T priority patent/PT1362953E/pt
Priority to US10/435,559 priority patent/US6824647B2/en
Priority to CA2428583A priority patent/CA2428583C/fr
Publication of EP1362953A1 publication Critical patent/EP1362953A1/fr
Publication of EP1362953B1 publication Critical patent/EP1362953B1/fr
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/24—Pressing or stamping ornamental designs on surfaces
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/10—Watermarks
    • 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
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/005—Mechanical treatment
    • 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
    • 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
    • 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
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/26—Agents rendering paper transparent or translucent
    • 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 relates to the field of papers for sanitary purposes or domesticated. Examples include toilet paper, paper towels or any paper wiping, napkins, etc.
  • cellulose wadding also known as tissue paper
  • tissue paper is generally used. It is a low weight absorbent paper, between 10 and 45 g / m 2 , obtained wet from paper fibers. It includes, possibly, chemical additives in small proportions, according to the use for which it is intended. It can be obtained by pressing the still wet sheet on a heated cylinder of large diameter, on which it is dried and from which it is then detached by means of a metal blade applied against it, transversely to its direction of rotation. This operation is intended to crepe the sheet which then has transverse corrugations to its direction walk. The crepe gives the sheet a certain elasticity at the same time as it increases its thickness and gives it tactile properties.
  • Another known method of manufacture comprises a first step of drying the sheet, at least in part, by means of a stream of hot air therethrough. This can then be creped or not.
  • the subject of the invention is a process for marking a sheet consisting of one or several folds of cellulose wadding to obtain a pattern simulating a watermark.
  • marking refers to the compression of certain parts on one side of the sheet to thereby form compacted areas, and significantly reduce its thickness in these areas, without forming a corresponding relief on the opposite side of the sheet.
  • a watermark is the impression of a drawing in the thickness or body of the paper, which is visible by transparency.
  • the watermark is called “wet” or “true” watermark when it is produced during the manufacture of the paper, in the wet phase of the process before drying. It is produced, for example, by the imprint of a pattern on a cylinder rotating in contact with the still wet sheet.
  • a dry or simulated watermark is an impression of appearance similar to a true watermark, produced on paper after its manufacture.
  • the applicant in its patent EP-B-0 864 014, proposed the application of a motive pattern simulating a watermark to a sheet of absorbent paper made of cellulose wadding.
  • the method consists in deforming the sheet under stress by passing between a hard etched roll and a receiving roll having a surface hardness greater than 40 Shore D under a specific pressure of at least 150 kg / cm 2 with a marking speed of at least 50m / min.
  • the engraved cylinder is made of steel and heated to a temperature ranging from 50 ° C. to 100 ° C. A small quantity of water is optionally provided.
  • the method makes it possible to obtain a product with a pattern simulating a watermark, the marked surface being smooth, shiny and translucent with a small thickness compared to its extent.
  • US Patent 4,166,758 discloses a method for making transparent paper of submitting a sheet in the wet state under pressure by means of a cylinder engraved heated.
  • Patent Application WO 94/06623 describes the marking of a paper for sachet of tea with application of a melt additive to improve the appearance of the pattern and the sheet resistance.
  • Patent application WO 01/47699 describes a method for binding several plies tissue paper on which a lotion is applied. According to this process, one exercises a hot pressing by means of heated cylinders.
  • the applicant has sought to improve its previous process, and in particular to to obtain a strongly contrasting filigree pattern without having to implement heating means.
  • the method of the invention achieves this objective.
  • the method of the invention for marking a pattern simulating a watermark on a sheet composed of at least one ply of cellulose wadding, consisting of deforming constrains the sheet between a first smooth surface rigid roll and at least one second rigid roller provided with relief elements, is characterized by the fact that it applies to a film of an additive based on mineral oil, favoring the formation of the watermark on at least one of the surfaces of the sheet during the marking operation.
  • the additive is applied on the surface and penetrates into the thickness of the sheet at the same it is distorted. It is applied cold, ie without heat outside, at room temperature. This results in an optimum result with Simple.
  • the additive is applied to the first roll, to the elements relief of the second roll or on both rolls. In the latter case, we notice that the decoration stands out perfectly, both on the marked side and on the opposite side.
  • the additive may be applied directly to the roll or rolls during the marking operation.
  • the additive is applied by coating.
  • the coating can be performed by means of a device comprising a screened cylinder.
  • the additive is applied by contact of the surface to be coated, here the rollers, with an absorbent means impregnated with the additive.
  • the additive is then transferred from the surface (s) of the roll or rolls on the surface (s) of the sheet, during the operation of marking.
  • the finished product contains less than 1% by weight, preferably between 0.2 and 1% and preferentially still between 0.2 and 0.5% of additive in mass relative to the mass of the leaf.
  • the additive is a white mineral oil, suitable for medicinal or food applications. Its dynamic viscosity at room temperature, of the order of 25 ° C, is between 15 and 80, preferably between 20 and 30 mPa.s, according to the NFT60-100 standard.
  • the elements in relief on the second roll form units unitary surface area between 20 and 50 mm 2 and preferably between 30 and 40 mm 2 .
  • the raised elements comprise portions of continuous shape, preferably linear.
  • the ratio of the marked area to the total area of the sheet is less than 20%.
  • a force is exerted on the second roller corresponding to a linear pressure on the sheet of between about 20 and about 100 kg / cm 2, preferably between 40 and 90 kg / cml.
  • the sheet is deformed between a first roll extending across the width of the width of the sheet and at least one second roll of width between 15 and 90 mm.
  • each roll can be formed of an assembly of several discs.
  • the sheet obtained comprising at least one ply of cellulose wadding weighing between 10 and 45 g / m 2 , having a marked zone simulating a watermark, is characterized in that it is impregnated with additive, in particular with mineral oil.
  • additive in particular with mineral oil.
  • the amount of additive is less than 1% by weight relative to the mass of the sheet.
  • a sheet 8 composed of at least one fold cellulose wadding, here two, is unwound from at least one coil. She is guided, via at least one detour or guide roll (not referenced) up to pass between a first roll 1 whose surface is smooth and a plurality of second rollers 2 provided with relief elements.
  • the first roll presents a rotation axis YY '.
  • the rollers 2 are etched and are for example mounted on a common axis XX ', which is parallel to YY'. It is also part of the the invention to have the second rollers 2 on two or more axes parallel.
  • the second rollers 2 may each have a width between 15 and 90 mm, for example 80 mm. They can be spaced apart others to form decorated strips on the sheet to be treated.
  • the elements in relief on the engraved wheels 2 are of complex shape, continuous or formed of continuous assemblies (open or closed). Without leaving the framework of the invention, it is possible to wedge the knurls 2 so as to obtain a pattern which extends over all or part of the surface of the sheet. Between rolls 1 and 2, there is compression of the sheet 8. Means for exerting force on the second rolls corresponding to a linear pressure between about 20 and 100 kg / cm 2, preferably between 40 and 90 kg / cm 2.
  • the sheet 8 is covered on at least one of its surfaces of an additive based on mineral oil, such as petroleum jelly.
  • mineral oil such as petroleum jelly.
  • using a white mineral oil, medicinal or food in any case suitable for use in direct, indirect or indirect food contact occasional.
  • an oil marketed under the trade name Primol is used. or Marcol by ESSO SAF. It is a colorless liquid whose viscosity dynamic at 25 ° C is advantageously between 20 and 25 mPa.s.
  • Means 3 and 4 for applying the additive are provided. These means may coat either the engraved rollers 2, the smooth roll 1, or the two types of rollers. Depending on the case, they are in contact with one and / or the other of said rolls.
  • the means 3 and 4 may be of any type known per se, with a reserve 5 for the additive and an absorbent material which makes it possible to transfer the additive from the reserve 5 to the associated roller 1 or 2.
  • the absorbent material may be based on textile fibers with a density of between 200 and 450 g / m 2 / mm, for example 225 g / m 2 / mm.
  • the additive is preferentially applied to its entire contact surface and oriented along the generator.
  • the vertices of the relief patterns are coated with additive.
  • the process of the invention is particularly advantageous in installations which mark downtime after winding a log or rolls, known in the art as "Stop & go”.
  • the visual contrast effect is really accentuated when the quantity of additive deposited and measurable on the sheet, is less than 1% by weight relative to the total mass of the sheet.
  • the application pressure of the means 2 against the means 1 is at least 60 kg / cml (kg per linear cm measured along the generator of contact).
  • the elements in relief on the rollers 2 have surfaces of the order of 20 to 50 mm 2 , and preferably 30 to 40 mm 2 . They are arranged on the second roller 2 so that it remains in continuous support on the smooth roller 1 so as to avoid vibrations.
  • the patterns are of any shape, linear or not; an example is given on the Figure 3 where 9 feather patterns appear in dark on a light background. In made on a sheet of cellulose wadding, the patterns form a contrast with the bottom of the sheet 8.
  • the sheet 8 may be formed of one or more plies. In the latter case, notes an association of the folds between them in the zones containing the decor. of the wide sheets can be decorated by the method according to the invention.
  • a example of decor is given in Figure 3.
  • An appropriate implementation of the invention then consists in providing at least a first set of etched means 2 arranged along a first axis XX ', and that a second set of engraved means arranged along a second axis different and parallel to the first (XX '), the axes being parallel to the axis YY' of the smooth roll 1.
  • the first and second axes of the second engraved means can for example, to be arranged diametrically opposed with respect to the smooth roll.
  • each of the first axes (XX '), the engraved means such as knurled wheels, are placed at a certain distance from each other. So, in case of damage or wear, the replacement of a wheel is easy. If they are arranged along two axes, the engraved rollers 2 are preferably placed in staggered rows.
  • the products covered by the invention are, for example, rolls of paper hygienic, napkins, towels or rolls for industrial wiping.
  • a localized decoration for example at the edge of the product can be provided.
  • a decoration distributed over the entire surface of the product may, however, be provided for hygienic paper or industrial wiping applications.
  • the quantity of additive impregnated on the sheet that is to say the percentages by mass of additive present in the sheet thus obtained by the device described.
  • the measure consisted in extracting the additive by chloroform gravimetrically. This method is recalled below.
  • a control sample with additive and a sample without additive are made.
  • the rate of additive corresponds to the rate of extract of the sample with additive reduced by Sample extract without additive.
  • the quantities thus measured of additive are indicated in% in the table below.
  • the thickness of a sheet is determined according to ENV 12625-3 and is not increased by the process according to the invention.
  • the thickness of the unlabelled base sheet is about 0.224 mm.
  • Linear pressure Kg / cml Sheet speed m / min Thickness of the sheet mm Differences in gray levels Additive% face (6) face (7) 43.75 100 0.226 + - 0.01 34 36 0.37 65.62 100 0.237 + - 0.01 56 54 0.45 87.5 100 0.239 + - 0.01 60 54 0.35
  • the method described in patent EP 864014 consists in illuminating the sheet means of an optical fiber and a light diffuser, and to measure the level of gray using a CCD camera and a Leica Quantilet 600S image analyzer.
  • the average gray level of a marked surface is measured in delimiting a small closed area. We delimit an unmarked area of surface corresponding to this marked area and measure the average level of Grey.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Sanitary Thin Papers (AREA)
  • Credit Cards Or The Like (AREA)
  • Laminated Bodies (AREA)
EP02010746A 2002-05-14 2002-05-14 Procédé de marquage d'une feuille de papier, feuille ayant un motif de type filigrane Expired - Lifetime EP1362953B1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
AT02010746T ATE295448T1 (de) 2002-05-14 2002-05-14 Verfahren zum markieren einer papierbahn, papierbahn mit einem wasserzeichenmuster
DE60204120T DE60204120T2 (de) 2002-05-14 2002-05-14 Verfahren zum markieren einer Papierbahn, Papierbahn mit einem Wasserzeichenmuster
ES02010746T ES2241925T3 (es) 2002-05-14 2002-05-14 Procedimiento de mercado de una hoja de papel que tiene un motivo de tipo filigrana.
DK02010746T DK1362953T3 (da) 2002-05-14 2002-05-14 Fremgangsmåde til mærkning af et papirark, ark med et mönster af typen vandmærke
EP02010746A EP1362953B1 (fr) 2002-05-14 2002-05-14 Procédé de marquage d'une feuille de papier, feuille ayant un motif de type filigrane
PT02010746T PT1362953E (pt) 2002-05-14 2002-05-14 Processo de marcacao de uma folha de papel folha contendo um motivo do tipo filigrana
US10/435,559 US6824647B2 (en) 2002-05-14 2003-05-12 Method for marking a sheet of paper and sheet with a watermark
CA2428583A CA2428583C (fr) 2002-05-14 2003-05-13 Procede de marquage d'une feuille de papier, feuille ayant un motif de type filigrane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02010746A EP1362953B1 (fr) 2002-05-14 2002-05-14 Procédé de marquage d'une feuille de papier, feuille ayant un motif de type filigrane

Publications (2)

Publication Number Publication Date
EP1362953A1 EP1362953A1 (fr) 2003-11-19
EP1362953B1 true EP1362953B1 (fr) 2005-05-11

Family

ID=29265924

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02010746A Expired - Lifetime EP1362953B1 (fr) 2002-05-14 2002-05-14 Procédé de marquage d'une feuille de papier, feuille ayant un motif de type filigrane

Country Status (8)

Country Link
US (1) US6824647B2 (pt)
EP (1) EP1362953B1 (pt)
AT (1) ATE295448T1 (pt)
CA (1) CA2428583C (pt)
DE (1) DE60204120T2 (pt)
DK (1) DK1362953T3 (pt)
ES (1) ES2241925T3 (pt)
PT (1) PT1362953E (pt)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8012311B2 (en) 2006-09-27 2011-09-06 Georgia-Pacific France Method and assembly for the manufacture of an absorbent sheet, and absorbent sheet obtained
US8114250B2 (en) 2006-09-27 2012-02-14 Georgia-Pacific France Method and installation for the combination of plies forming an absorbent sheet

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60204120T2 (de) * 2002-05-14 2006-02-02 Georgia-Pacific France Verfahren zum markieren einer Papierbahn, Papierbahn mit einem Wasserzeichenmuster
US20070137814A1 (en) * 2005-12-15 2007-06-21 Kimberly-Clark Worldwide, Inc. Tissue sheet molded with elevated elements and methods of making the same
FR2929962B1 (fr) * 2008-04-11 2021-06-25 Arjowiggins Licensing Sas Procede de fabrication d'une feuille comportant une sous- epaisseur ou une sur-epaisseur au niveau d'un ruban et feuille associee.
DE102008024941A1 (de) 2008-05-23 2009-12-17 Anja Schulz Motiv-Aufbrühbeutel, insbesondere Teebeutel
JP5814318B2 (ja) * 2013-08-30 2015-11-17 大王製紙株式会社 トイレットペーパーの製造方法及びトイレットロールの製造方法
AU2017264499B2 (en) * 2016-05-09 2021-04-01 Kimberly-Clark Worldwide, Inc. Topically treated patterned tissue product
GB2564819B (en) * 2016-05-09 2022-01-12 Kimberly Clark Co Patterned tissue product
MX2018013479A (es) 2016-05-09 2019-02-28 Kimberly Clark Co Estampado sustractivo con textura.

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DE60204120T2 (de) * 2002-05-14 2006-02-02 Georgia-Pacific France Verfahren zum markieren einer Papierbahn, Papierbahn mit einem Wasserzeichenmuster

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8012311B2 (en) 2006-09-27 2011-09-06 Georgia-Pacific France Method and assembly for the manufacture of an absorbent sheet, and absorbent sheet obtained
US8114250B2 (en) 2006-09-27 2012-02-14 Georgia-Pacific France Method and installation for the combination of plies forming an absorbent sheet
US8246885B2 (en) 2006-09-27 2012-08-21 Georgia-Pacific France Method and assembly for the manufacture of an absorbent sheet, and absorbent sheet obtained

Also Published As

Publication number Publication date
DE60204120T2 (de) 2006-02-02
ATE295448T1 (de) 2005-05-15
ES2241925T3 (es) 2005-11-01
DE60204120D1 (de) 2005-06-16
PT1362953E (pt) 2005-09-30
US6824647B2 (en) 2004-11-30
EP1362953A1 (fr) 2003-11-19
CA2428583C (fr) 2013-04-09
DK1362953T3 (da) 2005-08-29
CA2428583A1 (fr) 2003-11-14
US20040007338A1 (en) 2004-01-15

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