EP1529629A1 - Method of packaging rolled products and embossing roll - Google Patents

Method of packaging rolled products and embossing roll Download PDF

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Publication number
EP1529629A1
EP1529629A1 EP04292548A EP04292548A EP1529629A1 EP 1529629 A1 EP1529629 A1 EP 1529629A1 EP 04292548 A EP04292548 A EP 04292548A EP 04292548 A EP04292548 A EP 04292548A EP 1529629 A1 EP1529629 A1 EP 1529629A1
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EP
European Patent Office
Prior art keywords
embossing
zones
pattern
rolls
cylinder
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.)
Withdrawn
Application number
EP04292548A
Other languages
German (de)
French (fr)
Inventor
Michel Basler
Sébastien Jeannot
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
Application filed by Georgia Pacific France SAS filed Critical Georgia Pacific France SAS
Publication of EP1529629A1 publication Critical patent/EP1529629A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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
    • B31F2201/0771—Other aspects of the embossing operations
    • B31F2201/0776—Exchanging embossing tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0784—Auxiliary operations
    • B31F2201/0794—Cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B25/00—Packaging other articles presenting special problems
    • B65B25/14—Packaging paper or like sheets, envelopes, or newspapers, in flat, folded, or rolled form
    • B65B25/146—Packaging paper or like sheets, envelopes, or newspapers, in flat, folded, or rolled form packaging rolled-up articles

Definitions

  • the present invention relates to the field of products for use sanitary or domestic rolls and aims in particular the rolls of tissue paper or cellulose wadding wrapped in film.
  • the rolls are intended for use as toilet paper or paper towels.
  • the rolls are formed by winding a continuous sheet, possibly precut in successive coupons.
  • the leaf is itself composed of one or more superposed folds of which at least the fold exterior, apparent, is embossed in a decorative pattern.
  • the invention relates in particular to the conditioning of rolls in a transparent film on at least part of its surface because we want leave the decor apparent.
  • the technique of transforming a tissue paper sheet, issue of the paper machine, in rolls ready for sale includes several steps found in the majority of production lines.
  • the sheet is unwound from a mother reel, 2.6m wide by example; it leads to an embossing unit in which the sheet is embossed, possibly associated in several folds to form a multi-ply leaf.
  • the leaf is then wrapped around a mandrel of the same width as that of the mother reel, so that to form a roll of diameter corresponding to the final diameter of the rolls that one wishes to obtain.
  • This roller which is designated by log in the present technical field, is then cut into rolls individual. These are deposited on belt conveyors and guided to a marshalling yard where they are separated into roll trains successive to be wrapped in film.
  • patent EP 0 995 681 in the name of the applicant discloses a unit for manufacturing and packaging such rolls.
  • this document discloses a manufacturing unit and packaging in series of products in rolls which comprises, upstream in downstream relative to the direction of roll progress in the unit: a cutting station intended to cut the logs in successive trains, spaced or no, several rolls of smaller length, and a conveyor intended to convey the roll trains from the cutting station to a dispatching station which, in turn, distributes train by train several packing stations.
  • the problem that the invention aims to solve concerns the means of make packages of several rolls, at least two of them have different embossed decorations.
  • the post distribution can actually lead to a mixture of different rolls in the packages.
  • the present invention aims at a simple and economical solution in particular the problem referred to above.
  • the method of manufacturing and packaging rolls of tissue paper in which one waffles at minus one sheet of paper in an embossing unit comprising a engraved embossing cylinder, the sheet is wound into logs, the logs in individual rolls, the rolls are transported up to one of packaging, is characterized in that said embossing cylinder includes at least first zones with a first pattern of embossing and second areas with a second embossing pattern different from the first one, individual rolls being obtained with a embossed sheet according to the first pattern and individual rolls being obtained whose sheet is embossed according to the second pattern.
  • first zones and the second zones form distinct bands, transverse to the axis of the cylinder. According to a particular characteristic, they are separated in the axial direction by a so-called intermediate zone, the cutting of the logs being carried out in the embossed sheet at said zones intermediate. According to another particular characteristic the width of each of the areas in the axial direction is less than the width said individual rolls.
  • the engraved cylinder may include thirds, fourths areas, etc. with as many different patterns as the width of the sheet mother allows it.
  • the cylinder can include up to twenty-six zones with different patterns insofar as each individual roll has a width of 10cm.
  • the intermediate zone has no embossing pattern.
  • the intermediate zone is embossed and comprises in particular an embossing pattern consisting of protuberances arranged in alignments or an embossing pattern consisting of micro-protuberances distributed in the proportion of at least 30 micro-protuberances per cm 2 , the two patterns being alone or combined.
  • the motif of the intermediate zone constitutes a motive for at least one of the first or second zones.
  • reason background is understood to mean a motif or a motif element that is found in in areas or a set of areas.
  • the width of the area intermediate in the axial direction of the cylinder is between 1 and 40 mm, preferably between 5 and 30 mm.
  • the sum of the width of the first zone and the intermediate zone or the sum of the width of the second zone and the intermediate zone is substantially equal to that of an individual roll.
  • the cutting of the rolls can be carried out with some tolerance with respect to the relative position of the cutting blades in the length of the logs.
  • the cut is made between the different patterns whatever their arrangement and / or orientation on the log. This feature makes it possible to be certain to split the logs between a first and second zone. This ensures the final rolls on which it appears only one reason, first, second or nth.
  • the solution of the invention also allows, in a simple manner, without have to put in place any way of managing the logs produced with different reasons, to obtain packages consisting of rollers having different embossing patterns.
  • the yawning of edges of the leaves when they consist of several folds linked between them Just make sure the sheets are linked together at least in the intermediate zone. Fold binding is usually obtained by gluing the folds together along embossing reliefs. The non-embossed areas are not stuck.
  • train trains are individual rolls from the same log.
  • This storage step after embossing the logs and before they are cut in rolls makes it possible to manufacture a certain number of logs then, when making rolls is necessary, to take them back and to cut them according to the invention.
  • Figures 2A and 2B each illustrate an embodiment providing respectively one unit and two cutting units.
  • the installation comprises a single unit of 12, which allows cutting four logs simultaneously (no represented), resulting in four sets of rollers which are distributed at the level of the distributor 16 on twice four sets of rollers directed to two packaging units 18A, 18B.
  • the installation comprises two cutting units 12A, 12B, to cut two sets of logs simultaneously: here twice two logs 2.
  • each cutting unit 12A, 12B thus leave two sets of rollers 22 each directed to a distributor 16A, 16B which directs alternatively the series of rollers 22 to one rail or another, the rails for directing rolls to a packaging unit 18A, 18B.
  • the present invention relates to a method for producing packages packaged comprising several rolls decorated according to patterns of different embossing.
  • the rollers are arranged randomly or pseudo-randomly so that the packets all appear different, the number of possible combinations being very large.
  • This figure shows the developed surface of a part of the cylinder 100.
  • the distance Lp, taken in the direction of the axis of the cylinder, here corresponds to the width of four individual rolls.
  • the embossing comprises a first zone Z 1 , in the form of a strip perpendicular to the axis of the cylinder, with a first pattern M 1 , a second zone Z 2 in the form of a strip also, with a second pattern M 2 different of the first and, in between, an intermediate transition zone Z t , here with a pattern D different from the other patterns.
  • the main patterns M 1 and M 2 are arranged in strips of width 1.
  • the width 1 is smaller than that of an individual roll which is commonly 10 cm.
  • the pattern D is composed of a bottom consisting of microprotrusions D1 and discrete protuberances arranged in alignments D2.
  • FIG. 3 shows two other zones Z 3 and Z 4 with still different patterns M 3 and M 4 . Between these zones, and according to this embodiment, the intermediate zones Z t are all identical, with the same pattern D. This pattern D also constitutes a background pattern passing through all the patterns M 1 to M 4 . These here represent flowers distributed along strips. It is certain that other drawings are included within the scope of the invention which does not refer to the motifs as such.
  • the pattern D is preferably of the microgolding type, ie consisting of protuberances distributed at least in part regularly to the surface at a rate of 30 per cm 2 at least.
  • the density can be higher, up to 100 per cm 2 in practice.
  • the size of the protuberances is directly related to the density of the pattern.
  • This pattern is in this embodiment completed by a lacing of protuberances forming corrugations.
  • the third intermediate zones may be devoid of pattern D.
  • the intermediate zones Z t allow a certain tolerance of the position of the cutting members between a first zone Z 1 and a second zone Z 2 .
  • the logs given the variation of certain manufacturing parameters, may be slightly offset with respect to the theoretical position relative to the cutting member.
  • the intermediate zone Z t thus makes it possible to overcome this possible offset and to obtain rolls on which on which it appears only one motive.
  • Zones Z t preferably cover a length of between 1 and 40, preferably between 5 and 30 mm.
  • the pattern in these zones Z t may consist of straight or curved lines and / or alignments for example spikes or pins. In specialized vocabulary, alignments are commonly called lacis.
  • the laces have a gluing function when several folds must be assembled by gluing, in particular, a dye can be added to the glue.
  • a micro-embossing can be expected on almost the entire surface of the log. According to another characteristic, it is advantageously realized before embossing the patterns. We waffle the leaf before its passage in the embossing station including the embossing cylinder according to the invention.
  • micro-embossing can also be performed simultaneously with embossing of the Mi motives.
  • the two types embossing are performed on the same fold of the cellulosic product.
  • micro-embossing confers a better homogeneity to the product, in that it avoids substantial differences in thickness between the different areas.
  • FIG. 4 An example of an embossing installation is described below.
  • assembly shown in FIG. 4 which allows the production of a two-ply leaf, one of which is embossed.
  • This machine includes said 100 rotating cylinder, made of steel or other rigid material, suitably engraved on the surface according to the pattern that allows the embossing of the invention. For example, this is the pattern shown in Figure 3.
  • a rubber cylinder 110 is rotatably mounted on an axis parallel to the first. It presses the cylinder 100 by means of appropriate cylinders not shown.
  • a first strip of paper is guided from one upstream reel, around the cylinder 110 and between the two cylinders 100 and 110. The sheet then marries the relief of the cylinder 100 by the pressure of the rubber.
  • Glue 104 is a cylinder with a rigid surface which receives glue from a doctor's room for example.
  • a second strip of paper from a second reel example is filed against the first tape by a marrying cylinder 106.
  • the film of glue on the first sheet P1 migrates partly on the parts of the second P2 band that come into contact with the parts in relief of the band P1.
  • the two folds are thus linked together by these surfaces in contact.
  • the two-ply sheet is then rolled, log in particular and leads to the post-processing stations.
  • the roll 106 can be replaced by a second embossing unit and associate the plies in point-to-tip mode or in nested mode with a marrying cylinder as is known from the skilled person. If two-step embossing is planned, a first embossing cylinder suitably engraved upstream of the cylinder 100.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

The method involves rolling a paper sheet in logs. The logs are cut into individual rolls. The sheets of the individual rolls are embossed according to the respective embossing patterns (M 1-M 4) engraved on four zones (Z 1-Z 4) of an embossing cylinder. The zones are separated in an axial direction by an intermediate zone (Z t) having a micro-embossing pattern (D). An independent claim is also included for an embossing cylinder engraved with embossing pattern for implementing a method of manufacturing a tissue papers roll.

Description

La présente invention concerne le domaine des produits à usage sanitaire ou domestique en rouleaux et vise en particulier les rouleaux de papier tissue ou d'ouate de cellulose conditionnés sous film. Par exemple, les rouleaux sont destinés à une utilisation comme papier toilette ou essuie-tout.The present invention relates to the field of products for use sanitary or domestic rolls and aims in particular the rolls of tissue paper or cellulose wadding wrapped in film. For example, the rolls are intended for use as toilet paper or paper towels.

Les rouleaux sont formés par enroulement d'une feuille continue, éventuellement prédécoupée en coupons successifs. La feuille est elle-même composée d'un ou plusieurs plis superposés dont au moins le pli extérieur, apparent, est gaufré selon un motif décoratif.The rolls are formed by winding a continuous sheet, possibly precut in successive coupons. The leaf is itself composed of one or more superposed folds of which at least the fold exterior, apparent, is embossed in a decorative pattern.

On les conditionne par groupes de deux ou plus, c'est à dire qu'on les enveloppe dans un emballage protecteur pour leur vente au détail. L'invention concerne en particulier le conditionnement des rouleaux dans un film transparent sur une partie au moins de sa surface car on souhaite laisser le décor apparent.They are packaged in groups of two or more, that is to say encloses them in protective packaging for their retail sale. The invention relates in particular to the conditioning of rolls in a transparent film on at least part of its surface because we want leave the decor apparent.

La technique de transformation d'une feuille de papier tissue, issue de la machine à papier, en rouleaux prêts à la vente comprend plusieurs étapes que l'on retrouve dans la majorité des chaínes de fabrication.The technique of transforming a tissue paper sheet, issue of the paper machine, in rolls ready for sale includes several steps found in the majority of production lines.

On déroule la feuille depuis une bobine mère, de 2,6m de large par exemple ; on l'entraíne vers une unité de gaufrage dans laquelle la feuille est gaufrée, éventuellement associée en plusieurs plis pour former une feuille à plusieurs plis. La feuille est ensuite enroulée autour d'un mandrin de même largeur que celle de la bobine mère, de manière à former un rouleau de diamètre correspondant au diamètre final des rouleaux que l'on souhaite obtenir. Ce rouleau, que l'on désigne par log dans le présent domaine technique, est ensuite tronçonné en rouleaux individuels. Ces derniers sont déposés sur des convoyeurs à bande et guidés vers une station de triage où ils sont séparés en trains de rouleaux successifs pour être emballés sous film.The sheet is unwound from a mother reel, 2.6m wide by example; it leads to an embossing unit in which the sheet is embossed, possibly associated in several folds to form a multi-ply leaf. The leaf is then wrapped around a mandrel of the same width as that of the mother reel, so that to form a roll of diameter corresponding to the final diameter of the rolls that one wishes to obtain. This roller, which is designated by log in the present technical field, is then cut into rolls individual. These are deposited on belt conveyors and guided to a marshalling yard where they are separated into roll trains successive to be wrapped in film.

Par exemple le brevet EP 0 995 681 au nom de la demanderesse décrit une unité de fabrication et d'emballage de tels rouleaux.For example, patent EP 0 995 681 in the name of the applicant discloses a unit for manufacturing and packaging such rolls.

Plus précisément, ce document divulgue une unité de fabrication et d'emballage en série de produits en rouleaux qui comprend, d'amont en aval relativement au sens de progression des rouleaux dans l'unité : un poste de découpe destiné à couper les logs en trains successifs, espacés ou non, de plusieurs rouleaux de plus petite longueur, et un convoyeur destiné à acheminer les trains de rouleaux du poste de découpe jusqu'à un poste de répartition qui, lui-même, distribue train par train les rouleaux à plusieurs postes d'emballage.More specifically, this document discloses a manufacturing unit and packaging in series of products in rolls which comprises, upstream in downstream relative to the direction of roll progress in the unit: a cutting station intended to cut the logs in successive trains, spaced or no, several rolls of smaller length, and a conveyor intended to convey the roll trains from the cutting station to a dispatching station which, in turn, distributes train by train several packing stations.

Le problème que vise à résoudre l'invention concerne le moyen de réaliser des paquets de plusieurs rouleaux dont au moins deux d'entre eux présentent des décors gaufrés différents.The problem that the invention aims to solve concerns the means of make packages of several rolls, at least two of them have different embossed decorations.

Pour réaliser ces différents décors, une solution consisterait à gaufrer le papier sur des unités équipées de cylindres de gaufrage différents, chaque cylindre de gaufrage étant gravé avec un motif différent. On produirait ainsi des logs avec des décors différents.To realize these different sets, one solution would be to emboss the paper on units equipped with embossing rolls different, each embossing cylinder being engraved with a pattern different. We would thus produce logs with different decorations.

Dans le dispositif présenté ci-dessus, si les logs ne sont pas tous identiques quant au décor et qu'il sont découpés simultanément, le poste de répartition peut effectivement permettre d'aboutir à un mélange de rouleaux différents dans les emballages.In the device presented above, if the logs are not all identical to the decor and that they are cut simultaneously, the post distribution can actually lead to a mixture of different rolls in the packages.

Cependant, cette solution est onéreuse. Elle demande une gestion des rouleaux très lourde qu'il est difficile d'envisager dans une installation industrielle à grand débit avec un rendement satisfaisant. Entre les unités de gaufrage et les unités d'emballage, les installations prévoient des tours formant un stockage temporaire. La gestion de logs différents dans ces tours ne serait certainement pas une solution économiquement intéressante.However, this solution is expensive. She asks for a management very heavy rollers that it's hard to envision in a high volume industrial plant with satisfactory performance. Between the embossing units and the packaging units, the installations provide towers forming a temporary storage. Log management different in these towers certainly would not be a solution economically interesting.

La présente invention vise une solution simple, économique notamment, au problème visé ci-dessus.The present invention aims at a simple and economical solution in particular the problem referred to above.

Conformément à l'invention, le procédé de fabrication et de conditionnement de rouleaux de papier tissue dans lequel on gaufre au moins une feuille de papier dans une unité de gaufrage comprenant un cylindre de gaufrage gravé, on enroule la feuille en logs, on tronçonne les logs en rouleaux individuels, on achemine les rouleaux jusqu'à une unité d'emballage, est caractérisé par le fait que ledit cylindre de gaufrage comprend au moins des premières zones avec un premier motif de gaufrage et des deuxièmes zones avec un deuxième motif de gaufrage différent du premier, des rouleaux individuels étant obtenus avec une feuille gaufrée selon le premier motif et des rouleaux individuels étant obtenus dont la feuille est gaufrée selon le deuxième motif.According to the invention, the method of manufacturing and packaging rolls of tissue paper in which one waffles at minus one sheet of paper in an embossing unit comprising a engraved embossing cylinder, the sheet is wound into logs, the logs in individual rolls, the rolls are transported up to one of packaging, is characterized in that said embossing cylinder includes at least first zones with a first pattern of embossing and second areas with a second embossing pattern different from the first one, individual rolls being obtained with a embossed sheet according to the first pattern and individual rolls being obtained whose sheet is embossed according to the second pattern.

Plus précisément, les premières zones et les deuxièmes zones forment des bandes distinctes, transversales à l'axe du cylindre. Conformément à une caractéristique particulière, elles sont séparées dans la direction axiale par une zone dite intermédiaire, la découpe des logs étant effectuée dans la feuille gaufrée au niveau desdites zones intermédiaires. Conformément à une autre caractéristique particulière la largeur de chacune des zones dans le sens axial est inférieure à la largeur desdits rouleaux individuels.More precisely, the first zones and the second zones form distinct bands, transverse to the axis of the cylinder. According to a particular characteristic, they are separated in the axial direction by a so-called intermediate zone, the cutting of the logs being carried out in the embossed sheet at said zones intermediate. According to another particular characteristic the width of each of the areas in the axial direction is less than the width said individual rolls.

Le cylindre gravé peut comprendre des troisièmes, quatrièmes zones, etc. avec autant de motifs différents que la largeur de la feuille mère le permet. Par exemple pour une feuille issue d'une bobine mère de 260 cm de large, le cylindre peut comprendre jusqu'à vingt-six zones avec des motifs différents dans la mesure où chaque rouleau individuel a une largeur de 10cm.The engraved cylinder may include thirds, fourths areas, etc. with as many different patterns as the width of the sheet mother allows it. For example, for a sheet from a mother reel of 260 cm wide, the cylinder can include up to twenty-six zones with different patterns insofar as each individual roll has a width of 10cm.

Conformément à un mode de réalisation, la zone intermédiaire ne comporte pas de motif de gaufrage.According to one embodiment, the intermediate zone has no embossing pattern.

Conformément à un autre mode de réalisation la zone intermédiaire est gaufrée et comporte en particulier un motif de gaufrage constitué de protubérances disposées selon des alignements ou bien un motif de gaufrage constitué de micro-protubérances réparties à raison d'au moins 30 micro-protubérances par cm2, les deux motifs étant seuls ou combinés.According to another embodiment, the intermediate zone is embossed and comprises in particular an embossing pattern consisting of protuberances arranged in alignments or an embossing pattern consisting of micro-protuberances distributed in the proportion of at least 30 micro-protuberances per cm 2 , the two patterns being alone or combined.

En particulier, le motif de la zone intermédiaire constitue un motif de fond pour au moins l'une des premières ou deuxièmes zones. Par motif de fond on entend un motif ou un élément de motif qui se retrouve en commun dans les zones ou un ensemble de zones.In particular, the motif of the intermediate zone constitutes a motive for at least one of the first or second zones. By reason background is understood to mean a motif or a motif element that is found in in areas or a set of areas.

Conformément à une autre caractéristique, la largeur de la zone intermédiaire dans la direction axiale du cylindre est comprise entre 1 et 40 mm, de préférence entre 5 et 30 mm.According to another feature, the width of the area intermediate in the axial direction of the cylinder is between 1 and 40 mm, preferably between 5 and 30 mm.

Conformément à une autre caractéristique, la somme de la largeur de la première zone et de la zone intermédiaire ou la somme de la largeur de la deuxième zone et de la zone intermédiaire est sensiblement égale à celle d'un rouleau individuel.According to another characteristic, the sum of the width of the first zone and the intermediate zone or the sum of the width of the second zone and the intermediate zone is substantially equal to that of an individual roll.

Ainsi, la découpe des rouleaux peut être réalisée avec une certaine tolérance vis-à-vis de la position relative des lames de découpe dans la longueur des logs. La découpe est réalisée entre les différents motifs quelle que soit leur disposition et/ou orientation sur le log. Cette caractéristique permet d'être certain de découper les logs entre une première et une deuxième zone. On s'assure ainsi au final des rouleaux sur lesquels il n'apparaít qu'un seul motif, premier, deuxième ou n-ième.Thus, the cutting of the rolls can be carried out with some tolerance with respect to the relative position of the cutting blades in the length of the logs. The cut is made between the different patterns whatever their arrangement and / or orientation on the log. This feature makes it possible to be certain to split the logs between a first and second zone. This ensures the final rolls on which it appears only one reason, first, second or nth.

On obtient des rouleaux esthétiquement satisfaisants ayant une bonne présentation.Aesthetically pleasing rolls having a good presentation.

A partir d'une seule machine de découpe des logs, on peut former des paquets emballés constitués de plusieurs rouleaux ayant des motifs de gaufrage différents contrairement à la solution où ils seraient réalisés à partir de plusieurs machines. Il en résulte une économie en fabrication et d'investissement non négligeable.From a single log cutting machine, one can train packaged packages consisting of several rolls having patterns of embossing different unlike the solution where they would be made to from several machines. This results in a saving in manufacturing and significant investment.

La solution de l'invention permet aussi, et de manière simple, sans avoir à mettre en place aucun moyen de gestion des logs produits avec des motifs différents, d'obtenir des paquets constitués de rouleaux ayant des motifs de gaufrage différents.The solution of the invention also allows, in a simple manner, without have to put in place any way of managing the logs produced with different reasons, to obtain packages consisting of rollers having different embossing patterns.

Selon un autre avantage du procédé, on évite le bâillement des bords des feuilles lorsque celles-ci sont constituées de plusieurs plis liés entre eux. Il suffit de faire en sorte que les feuilles soient liées entre elles au moins dans la zone intermédiaire. La liaison des plis est généralement obtenue par collage des plis entre eux le long de reliefs de gaufrage. Les zones non gaufrées ne sont pas collées.According to another advantage of the process, the yawning of edges of the leaves when they consist of several folds linked between them. Just make sure the sheets are linked together at least in the intermediate zone. Fold binding is usually obtained by gluing the folds together along embossing reliefs. The non-embossed areas are not stuck.

Par ailleurs, avec un micro-gaufrage de fond, on assure une répartition homogène des efforts de gaufrage sur la largeur de laize de la feuille.Moreover, with a micro-embossing background, it ensures a homogeneous distribution of embossing efforts over the width of the width of the leaf.

Conformément à une autre caractéristique, on stocke temporairement les logs avant de les découper en rouleaux individuels.According to another characteristic, we store temporarily log them before cutting into individual rolls.

Conformément à une autre caractéristique, on forme des trains de rouleaux individuels à partir d'un même log.According to another characteristic, train trains are individual rolls from the same log.

Ainsi on n'est pas contraint de réaliser la production en continue. Cette étape de stockage après le gaufrage des logs et avant leur découpe en rouleaux, permet en effet de fabriquer un certain nombre de logs puis, lorsque la réalisation de rouleaux s'avère nécessaire, de les reprendre et de les découper selon l'invention.Thus one is not forced to realize the continuous production. This storage step after embossing the logs and before they are cut in rolls, makes it possible to manufacture a certain number of logs then, when making rolls is necessary, to take them back and to cut them according to the invention.

Cette modulation dans la fabrication est très avantageuse car on évite une fabrication en ligne.This modulation in the production is very advantageous because avoids online manufacturing.

D'autres caractéristiques, détails, avantages de l'invention apparaítront mieux à la lecture de la description qui va suivre faite à titre illustratif et nullement limitatif, en référence aux dessins annexés sur lesquels :

  • La figure 1 est un schéma d'une partie d'une installation de fabrication et d'emballage de produits en rouleaux ;
  • Les figures 2A et 2B sont des schémas de la partie aval d'une installation de fabrication et d'emballage de produits en rouleaux depuis la découpe des logs jusqu'à l'emballage des rouleaux, selon deux variantes ;
  • La figure 3 est un exemple d'un motif de gaufrage sur log, selon l'invention ;
  • La figure 4 est une représentation schématique d'une installation de gaufrage. La figure 1 permet d'illustrer les principales étapes, connues, de la fabrication de produits en rouleaux.On trouve, d'amont en aval relativement au sens d'avancement des produits dans la chaíne de fabrication, un poste de découpe et un convoyeur.
  • Le poste de découpe 12 est destiné à couper des logs 2 successifs de grande longueur et d'un diamètre donné, en trains successifs de plusieurs rouleaux 22 de plus petite longueur. Par exemple un log de 260 cm de long est découpé en 26 rouleaux 22.
  • Le convoyeur 14 achemine les trains de rouleaux 22 du poste de découpe 12 à un poste de répartition 16 qui distribue les rouleaux 22 sur deux postes d'emballage 18A et 18B.
Other features, details, advantages of the invention will appear better on reading the following description given by way of illustration and in no way limitative, with reference to the appended drawings in which:
  • Figure 1 is a diagram of a part of a facility for manufacturing and packaging products in rolls;
  • FIGS. 2A and 2B are diagrams of the downstream part of a facility for manufacturing and packaging products in rolls from the cutting of the logs to the packaging of the rolls, according to two variants;
  • Figure 3 is an example of an embossing pattern on log, according to the invention;
  • Figure 4 is a schematic representation of an embossing installation. FIG. 1 illustrates the main known steps in the manufacture of products in rolls. A cutting station and a conveyor are found, from upstream to downstream relative to the direction of travel of the products in the production line. .
  • The cutting station 12 is intended to cut successive logs 2 of great length and of a given diameter, in successive trains of several rollers 22 of smaller length. For example a log 260 cm long is cut into 26 rolls 22.
  • The conveyor 14 conveys the roller trains 22 of the cutting station 12 to a distribution station 16 which distributes the rollers 22 on two packing stations 18A and 18B.

Les figures 2A et 2B illustrent chacune un mode de réalisation prévoyant respectivement une unité et deux unités de découpe.Figures 2A and 2B each illustrate an embodiment providing respectively one unit and two cutting units.

Selon la figure 2A, l'installation comprend une seule unité de découpe 12, qui permet de découper simultanément quatre logs (non représentés) aboutissant, en sortie, à quatre trains de rouleaux qui sont répartis au niveau du répartiteur 16 sur deux fois quatre trains de rouleaux dirigés vers deux unités d'emballage 18A, 18B.According to FIG. 2A, the installation comprises a single unit of 12, which allows cutting four logs simultaneously (no represented), resulting in four sets of rollers which are distributed at the level of the distributor 16 on twice four sets of rollers directed to two packaging units 18A, 18B.

Selon la figure 2B, l'installation comprend deux unités de découpe 12A, 12B, pour couper simultanément deux séries de logs : ici deux fois deux logs 2.According to FIG. 2B, the installation comprises two cutting units 12A, 12B, to cut two sets of logs simultaneously: here twice two logs 2.

De chaque unité de découpe 12A, 12B sortent ainsi deux séries de rouleaux 22 chacune dirigée vers un répartiteur 16A, 16B qui dirige alternativement les séries de rouleaux 22 vers un rail ou un autre, les rails permettant de diriger des rouleaux vers une unité d'emballage 18A, 18B.From each cutting unit 12A, 12B thus leave two sets of rollers 22 each directed to a distributor 16A, 16B which directs alternatively the series of rollers 22 to one rail or another, the rails for directing rolls to a packaging unit 18A, 18B.

La présente invention vise un procédé destiné à réaliser des paquets emballés comprenant plusieurs rouleaux décorés selon des motifs de gaufrage différents. Les rouleaux sont disposés aléatoirement ou pseudo-aléatoirement de sorte que les paquets apparaissent tous différents, le nombre de combinaisons possibles étant très grand.The present invention relates to a method for producing packages packaged comprising several rolls decorated according to patterns of different embossing. The rollers are arranged randomly or pseudo-randomly so that the packets all appear different, the number of possible combinations being very large.

Cet objectif est atteint de façon simple par le procédé selon l'invention qui utilise de préférence mais non exclusivement un cylindre 100 de gaufrage gravé selon un motif tel que visible sur la figure 3.This objective is achieved simply by the method according to the invention which preferably but not exclusively uses a cylinder 100 embossing engraved in a pattern as visible in Figure 3.

On a représenté sur cette figure la surface développée d'une partie du cylindre 100. La distance Lp, prise dans la direction de l'axe du cylindre, correspond ici à la largeur de quatre rouleaux individuels. This figure shows the developed surface of a part of the cylinder 100. The distance Lp, taken in the direction of the axis of the cylinder, here corresponds to the width of four individual rolls.

Sur cette distance, le gaufrage comprend une première zone Z1, en forme de bande perpendiculaire à l'axe du cylindre, avec un premier motif M1, une seconde zone Z2 en forme de bande également, avec un second motif M2 différent du premier et, entre les deux, une zone Zt, de transition dite intermédiaire, ici avec un motif D différent des autres motifs. Les motifs principaux M1 et M2 sont disposés selon des bandes de largeur 1. La largeur 1 est inférieure à celle d'un rouleau individuel qui est communément de 10 cm. Le motif D est composé d'un fond constitué de microprotubérances D1 et de protubérances discrètes disposées selon des alignements D2.At this distance, the embossing comprises a first zone Z 1 , in the form of a strip perpendicular to the axis of the cylinder, with a first pattern M 1 , a second zone Z 2 in the form of a strip also, with a second pattern M 2 different of the first and, in between, an intermediate transition zone Z t , here with a pattern D different from the other patterns. The main patterns M 1 and M 2 are arranged in strips of width 1. The width 1 is smaller than that of an individual roll which is commonly 10 cm. The pattern D is composed of a bottom consisting of microprotrusions D1 and discrete protuberances arranged in alignments D2.

La représentation de la figure 3 montre deux autres zones Z3 et Z4 avec des motifs encore différents M3 et M4. Entre ces zones, et selon ce mode de réalisation, les zones intermédiaires Zt sont toutes identiques, avec le même motif D. Ce motif D constitue aussi un motif de fond traversant l'ensemble des motifs M1 à M4. Ceux-ci représentent ici des fleurs réparties le long de bandes. Il est certain que d'autres dessins sont compris dans le cadre de l'invention qui ne vise pas les motifs en tant que tels.The representation of FIG. 3 shows two other zones Z 3 and Z 4 with still different patterns M 3 and M 4 . Between these zones, and according to this embodiment, the intermediate zones Z t are all identical, with the same pattern D. This pattern D also constitutes a background pattern passing through all the patterns M 1 to M 4 . These here represent flowers distributed along strips. It is certain that other drawings are included within the scope of the invention which does not refer to the motifs as such.

Le motif D est avantageusement du type microgaufrage, c'est à dire constitué de protubérances réparties au moins en partie régulièrement à la surface à raison de 30 par cm2 au moins. La densité peut être plus élevée, jusqu'à 100 par cm2 dans la pratique. La dimension des protubérances est directement liée à la densité du motif. Ce motif est dans ce mode de réalisation complété par un lacis de protubérances formant des ondulations.The pattern D is preferably of the microgolding type, ie consisting of protuberances distributed at least in part regularly to the surface at a rate of 30 per cm 2 at least. The density can be higher, up to 100 per cm 2 in practice. The size of the protuberances is directly related to the density of the pattern. This pattern is in this embodiment completed by a lacing of protuberances forming corrugations.

Bien entendu, la séquence des motifs selon la largeur de la laize peut prendre d'innombrables formes. Une grande liberté dans le choix des motifs et dans leur arrangement mutuel sur le log est avantageusement possible.Of course, the sequence of patterns according to the width of the width can take countless forms. A great freedom in the choice of motives and in their mutual arrangement on the log is advantageously possible.

Dans tous les cas, il est nécessaire d'avoir au moins deux motifs Mi différents sur la largeur de la laize.In all cases, it is necessary to have at least two different patterns M i across the width of the width.

Conformément à un autre mode de réalisation non représenté, les troisièmes zones intermédiaires peuvent être dépourvues de motif D. Les zones intermédiaires Zt permettent une certaine tolérance de la position des organes de coupe entre une première zone Z1 et une deuxième zone Z2. Les logs, compte tenu de la variation de certains paramètres de fabrication, peuvent se trouver être légèrement décalés vis-à-vis de la position théorique par rapport à l'organe de coupe. La zone intermédiaire Zt permet donc de pallier cet éventuel décalage et d'obtenir des rouleaux sur lesquels sur lesquels il n'apparaít qu'un seul motif.According to another embodiment not shown, the third intermediate zones may be devoid of pattern D. The intermediate zones Z t allow a certain tolerance of the position of the cutting members between a first zone Z 1 and a second zone Z 2 . The logs, given the variation of certain manufacturing parameters, may be slightly offset with respect to the theoretical position relative to the cutting member. The intermediate zone Z t thus makes it possible to overcome this possible offset and to obtain rolls on which on which it appears only one motive.

Les zones Zt couvrent préférentiellement une longueur comprise entre 1 et 40, de préférence entre 5 et 30mm.Zones Z t preferably cover a length of between 1 and 40, preferably between 5 and 30 mm.

Le motif dans ces zones Zt peut être constitué de lignes droites ou courbes et/ou d'alignements par exemple de pointes ou picots. Dans le vocabulaire spécialisé, les alignements sont couramment appelés lacis.The pattern in these zones Z t may consist of straight or curved lines and / or alignments for example spikes or pins. In specialized vocabulary, alignments are commonly called lacis.

Préférentiellement, les lacis ont une fonction de collage lorsque plusieurs plis doivent être assemblés par collage, en particulier, un colorant peut être ajouté à la colle.Preferably, the laces have a gluing function when several folds must be assembled by gluing, in particular, a dye can be added to the glue.

Selon une caractéristique additionnelle de l'invention, un micro-gaufrage peut être prévu sur la quasi-totalité de la surface du log. Conformément à une autre caractéristique, il est avantageusement réalisé avant le gaufrage des motifs. On gaufre la feuille préalablement à son passage dans le poste de gaufrage comprenant le cylindre de gaufrage selon l'invention.According to an additional feature of the invention, a micro-embossing can be expected on almost the entire surface of the log. According to another characteristic, it is advantageously realized before embossing the patterns. We waffle the leaf before its passage in the embossing station including the embossing cylinder according to the invention.

Le micro-gaufrage peut aussi être réalisé simultanément au gaufrage des motifs Mi.The micro-embossing can also be performed simultaneously with embossing of the Mi motives.

Selon un mode préféré de réalisation de l'invention, les deux types de gaufrage sont réalisés sur un même pli du produit cellulosique.According to a preferred embodiment of the invention, the two types embossing are performed on the same fold of the cellulosic product.

Le micro-gaufrage confère une meilleure homogénéité au produit, en ce qu'il évite des différences sensibles d'épaisseur entre les différentes zones.The micro-embossing confers a better homogeneity to the product, in that it avoids substantial differences in thickness between the different areas.

On décrit ci-après un exemple d'installation de gaufrage et d'assemblage, représentée sur la figure 4 qui permet la réalisation d'une feuille à deux plis dont l'un est gaufré. Cette machine comprend ledit cylindre 100 rotatif, en acier ou autre matériau rigide, convenablement gravé en surface selon le motif qui permet de réaliser le gaufrage de l'invention. Par exemple il s'agit du motif représenté sur la figure 3. Un cylindre en caoutchouc 110 est monté rotatif sur un axe parallèle au premier. Il appuie sur le cylindre 100 par le moyen de vérins appropriés non représentés. Une première bande de papier est guidée, depuis un dévidoir amont, autour du cylindre 110 puis entre les deux cylindres 100 et 110. La feuille épouse alors le relief du cylindre 100 par la pression du caoutchouc. Selon la pression des vérins et la nature du caoutchouc, le papier pénètre plus ou moins profondément à l'intérieur du motif gravé. La finesse de celui-ci est également un paramètre dont il faut tenir compte. La feuille plaquée sur le cylindre 100 passe ensuite devant un dispositif d'encollage 104 qui applique de la colle sur le sommet des éléments en relief. L'encolleur 104 est ici un cylindre à surface rigide qui reçoit la colle d'une chambre à racle par exemple.An example of an embossing installation is described below. assembly, shown in FIG. 4 which allows the production of a two-ply leaf, one of which is embossed. This machine includes said 100 rotating cylinder, made of steel or other rigid material, suitably engraved on the surface according to the pattern that allows the embossing of the invention. For example, this is the pattern shown in Figure 3. A rubber cylinder 110 is rotatably mounted on an axis parallel to the first. It presses the cylinder 100 by means of appropriate cylinders not shown. A first strip of paper is guided from one upstream reel, around the cylinder 110 and between the two cylinders 100 and 110. The sheet then marries the relief of the cylinder 100 by the pressure of the rubber. Depending on the pressure of the cylinders and the nature of the rubber, the Paper penetrates more or less deeply inside the engraved pattern. The delicacy of it is also a parameter that must be kept account. The sheet plated on the cylinder 100 then passes in front of a sizing device 104 which applies glue on the top of the relief elements. Glue 104 here is a cylinder with a rigid surface which receives glue from a doctor's room for example.

Une deuxième bande de papier issue d'un deuxième dévidoir par exemple est déposée contre la première bande par un cylindre marieur 106. La pellicule de colle sur la première feuille P1 migre en partie sur les parties de la seconde bande P2 qui viennent en contact avec les parties en relief de la bande P1. Les deux plis sont ainsi liés entre eux par ces surfaces en contact. La feuille à deux plis est ensuite mise en rouleau, en log notamment et conduit vers les postes de traitement ultérieur.A second strip of paper from a second reel example is filed against the first tape by a marrying cylinder 106. The film of glue on the first sheet P1 migrates partly on the parts of the second P2 band that come into contact with the parts in relief of the band P1. The two folds are thus linked together by these surfaces in contact. The two-ply sheet is then rolled, log in particular and leads to the post-processing stations.

D'autres installations de gaufrage et d'assemblage de feuilles que celle-ci peuvent être appliquées, selon le produit que l'on souhaite obtenir. On peut remplacer par exemple le rouleau 106 par une deuxième unité de gaufrage et associer les plis en mode pointe contre pointe ou bien en mode nested avec un cylindre marieur comme cela est connu de l'homme de l'art. Si on prévoit un gaufrage en deux étapes, on dispose un premier cylindre de gaufrage convenablement gravé en amont du cylindre 100.Other embossing and sheet assembly facilities that this can be applied, depending on the product you want get. For example, the roll 106 can be replaced by a second embossing unit and associate the plies in point-to-tip mode or in nested mode with a marrying cylinder as is known from the skilled person. If two-step embossing is planned, a first embossing cylinder suitably engraved upstream of the cylinder 100.

Claims (15)

Procédé de fabrication et de conditionnement de rouleaux de papier tissue dans lequel on gaufre au moins une feuille de papier dans une unité de gaufrage comprenant un cylindre de gaufrage gravé, on enroule la feuille en logs (2), on tronçonne les logs (2) en rouleaux individuels (22), on achemine les rouleaux (22) jusqu'à une unité d'emballage (18), caractérisé par le fait que ledit cylindre de gaufrage comprend au moins des premières zones (Z1) avec un premier motif de gaufrage et des deuxièmes zones (Z2) avec un deuxième motif de gaufrage différent du premier, des rouleaux étant obtenus dont la feuille est gaufrée selon le premier motif et des rouleaux étant obtenus dont la feuille est gaufrée selon le deuxième motif.Process for manufacturing and packaging rolls of tissue paper in which at least one sheet of paper is embossed in an embossing unit comprising an engraved embossing cylinder, the sheet is wound into logs (2), logs are cut (2) in individual rolls (22), the rollers (22) are conveyed to a packaging unit (18), characterized in that said embossing roll comprises at least first zones (Z 1 ) with a first embossing and second zones (Z 2 ) with a second embossing pattern different from the first, rolls being obtained whose sheet is embossed according to the first pattern and rolls being obtained whose sheet is embossed according to the second pattern. Procédé selon la revendication 1 dont les premières zones et les deuxièmes zones du cylindre de gaufrage forment des bandes distinctes, transversales à l'axe du cylindre.The method of claim 1 wherein the first zones and the second areas of the embossing cylinder form separate bands, transverse to the axis of the cylinder. Procédé selon la revendication précédente dont lesdites premières zones (Z1) et lesdites deuxièmes zones (Z2) sont séparées dans la direction axiale par une zone intermédiaire (Zt), la découpe des logs (2) étant effectuée dans les zones intermédiaires (Zt).Method according to the preceding claim, wherein said first zones (Z 1 ) and said second zones (Z 2 ) are separated in the axial direction by an intermediate zone (Z t ), the cutting of the logs (2) being carried out in the intermediate zones ( Z t ). Procédé selon l'une des revendications 1 à 3 dont la largeur de chacune des premières ou deuxièmes zones (Z1 ou Z2) dans le sens axial est inférieure à la largeur des dits rouleaux individuels (22).Method according to one of claims 1 to 3, the width of each of the first or second zones (Z 1 or Z 2 ) in the axial direction is less than the width of said individual rollers (22). Procédé selon l'une des revendications 3 ou 4 dans lequel la zone (Zt) intermédiaire ne comporte pas de motif de gaufrage.Method according to one of claims 3 or 4 wherein the intermediate zone (Z t ) has no embossing pattern. Procédé selon la revendication 3 ou 4 dans lequel la zone intermédiaire (Zt) comporte un motif de gaufrage.The method of claim 3 or 4 wherein the intermediate zone (Z t ) has an embossing pattern. Procédé selon la revendication précédente selon lequel la zone intermédiaire (Zt) est constituée de protubérances disposées selon des alignements.Method according to the preceding claim wherein the intermediate zone (Z t ) consists of protuberances arranged in alignments. Procédé selon l'une des revendications 6 et 7, dans lequel la zone intermédiaire (Zt) comprend un motif de gaufrage constitué de micro-protubérances réparties à raison d'au moins trente protubérances par cm2.Method according to one of claims 6 and 7, wherein the intermediate zone (Z t ) comprises an embossing pattern consisting of micro-protuberances distributed in the proportion of at least thirty protuberances per cm 2 . Procédé selon l'une des revendications 6 à 8, dans lequel le motif de la zone intermédiaire (Zt) constitue un motif de fond pour au moins l'une des premières (Z1) ou deuxièmes (Z2) zones. Method according to one of claims 6 to 8, wherein the pattern of the intermediate zone (Z t ) constitutes a background pattern for at least one of the first (Z 1 ) or second (Z 2 ) zones. Procédé selon l'une des revendications 6 à 9, dont la largeur de la zone intermédiaire (Zt) dans la direction axiale du cylindre est comprise entre 1 et 40 mm de préférence entre 5 et 30mm.Method according to one of claims 6 to 9, the width of the intermediate zone (Z t ) in the axial direction of the cylinder is between 1 and 40 mm, preferably between 5 and 30mm. Procédé selon la revendication précédente dont la somme de la largeur de la première zone et de la troisième zone ou la somme de la largeur de la deuxième zone et de la troisième zone est sensiblement égale à celle d'un rouleau individuel (22).Method according to the preceding claim, the sum of which width of the first zone and the third zone where the sum of the width of the second zone and the third zone is substantially equal to that of an individual roll (22). Procédé selon l'une des revendications précédentes dans lequel on stocke temporairement les logs (2) avant de les découper en rouleaux individuels (22).Method according to one of the preceding claims in which we temporarily store the logs (2) before cutting them into rolls individual (22). Procédé selon l'une des revendications précédentes dans lequel on forme des trains de rouleaux individuels (22) à partir d'un même log (2).Method according to one of the preceding claims in which individual roll trains (22) are formed from one and the same log (2). Procédé selon l'une des revendications précédentes selon lequel on gaufre au préalable la feuille avant de la gaufrer par ledit cylindre de gaufrage.Method according to one of the preceding claims, in which the sheet is first waffled before being embossed by said cylinder of embossing. Cylindre de gaufrage gravé de façon à permettre la mise en oeuvre du procédé selon l'une des revendications précédentes.Embossing cylinder engraved to allow the application process according to one of the preceding claims.
EP04292548A 2003-11-05 2004-10-27 Method of packaging rolled products and embossing roll Withdrawn EP1529629A1 (en)

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EP0367999A2 (en) * 1988-11-09 1990-05-16 ICAIPLAST S.p.A. A device for impressing raised patterns on sheet materials
GB2380447A (en) 2001-10-02 2003-04-09 Sca Hygiene Prod Gmbh Device and method for applying a spot embossing pattern to a web of multi-ply tissue paper

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8197455B2 (en) 2004-12-21 2012-06-12 Kimberly-Clark Worldwide, Inc. Absorbent articles and/or packaging components each having different patterns in a single container
EP1833444B2 (en) † 2004-12-21 2018-06-27 Kimberly-Clark Worldwide, Inc. Absorbent articles and/or packaging components each having different patterns in a single container

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CA2484541C (en) 2012-09-04
US20050132904A1 (en) 2005-06-23
FR2861642A1 (en) 2005-05-06
CA2484541A1 (en) 2005-05-05

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