EP0563245B1 - Printable ribbed coated sheet and process for producing same - Google Patents

Printable ribbed coated sheet and process for producing same Download PDF

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Publication number
EP0563245B1
EP0563245B1 EP92902797A EP92902797A EP0563245B1 EP 0563245 B1 EP0563245 B1 EP 0563245B1 EP 92902797 A EP92902797 A EP 92902797A EP 92902797 A EP92902797 A EP 92902797A EP 0563245 B1 EP0563245 B1 EP 0563245B1
Authority
EP
European Patent Office
Prior art keywords
paper
sheet
coated
layer
ribbed
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
EP92902797A
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German (de)
French (fr)
Other versions
EP0563245A1 (en
Inventor
Michel Goguelin
Emeric Thibierge
Alain Barthez
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.)
Arjo Wiggins Dessin et Papiers Fins SA
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ArjoWiggins SAS
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Application filed by ArjoWiggins SAS filed Critical ArjoWiggins SAS
Publication of EP0563245A1 publication Critical patent/EP0563245A1/en
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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/72—Coated paper characterised by the paper substrate
    • D21H19/74—Coated paper characterised by the paper substrate the substrate having an uneven surface, e.g. crêped or corrugated paper
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24628—Nonplanar uniform thickness material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24934—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including paper layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/27—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.]
    • Y10T428/273—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.] of coating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/3188—Next to cellulosic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31931—Polyene monomer-containing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31971—Of carbohydrate
    • Y10T428/31993—Of paper

Definitions

  • the invention relates to a marked printable sheet comprising at least one pigmented layer, and more particularly a matt layer.
  • the invention further relates to the method of manufacturing such a sheet.
  • the terms "marked sheet” and "marked paper” mean a sheet or respectively a paper, presenting marks or patterns in relief produced using embossing rollers or watermarks or using markers markers, possibly hot. It is for example a laid paper, the rods being made using a watermark roll; of a grained paper, the grain being produced by means of an embossing roller or a marker pen. It can also be non-smoothed papers called “machine blanks" which have a certain structured surface (rustic effect) originating from the marking of the felt of the paper machine. It can also be for example an embossed plastic film.
  • Papers which have a pigmented layer in order to give them very good printability, in particular in four-color printing.
  • marked papers which comprise at least one pigmented layer so as to make them printable.
  • Such papers are produced by forming a sheet by the wet technique, that is to say using an aqueous dispersion containing cellulose fibers, optionally with other natural, mineral and / or synthetic fibers, and optionally binders. , dyes and other additives commonly used in stationery.
  • the aqueous dispersion is placed on a metal grid, wrung out and then dried.
  • the sheet thus obtained is then coated by means coaters with compositions containing fillers (for example kaolin). Then the coated sheet is dried. Finally, a marking of the sheet is carried out outside the machine.
  • An object of the invention is therefore to provide a marked paper which has good printability (therefore coated), but which at the same time retains the rigidity of an unmarked paper, of the same grammage and which is of homogeneous mat appearance.
  • An object of the invention is therefore to provide paper of the paper type for printing and / or writing, matte, but at the same time marked.
  • An object of the invention is therefore to provide a paper which combines the advantages of the two kinds of paper and which avoid their faults: a coated paper therefore having better printability with a soft marking which brings originality without harming the homogeneity of the shine and without harming the rigidity.
  • Another object of the invention is to provide a grained coated paper which has good rigidity and avoids the user buying a paper of significantly heavier grammage (the choice of grammage of the paper was indeed often linked to rigidity required by the user).
  • the Applicant has produced such a coated, marked and matte printable sheet, the surface appearance of which (that is to say the mattness or the gloss) is uniform and is not affected by the marking, by performing all 'first the marking of a support and covering at least one face of this support by at least one pigmented layer.
  • the skilled person has so far thought that if he deposited a pigmented layer on a paper which has been previously marked, the layer would plug the hollow parts and therefore the marks would no longer be visible after the sleeping.
  • the layer would not be distributed uniformly, the hollows filling more and the bumps being coated more weakly by the composition of the layer.
  • the invention therefore relates to a marked coated printable sheet, such as it consists of a marked support comprising recesses covered on at least one of its faces with at least one pigmented layer deposited uniformly in the recesses.
  • the Japanese document JP-A-57 056 212 describes a paper used to manufacture synthetic leathers.
  • a transparent or translucent resin 4 ′ is deposited on the surface of a transfer paper which has reliefs 2, 3. When the resin is dry, a pattern 5 is printed with a printing ink.
  • the paper is laminated on a sheet of synthetic material, with the application of heat and pressure and the transfer paper is removed.
  • thermoplastic material It is a transfer paper which includes prints which are transferred onto a thermoplastic material.
  • Other transfer papers include reliefs.
  • the one described in the Japanese document contains both prints and reliefs.
  • Patent BE-A-377,927 describes a marked sheet on which colored substances are deposited, so as to cause an irregular distribution of these substances, in such a way that more colored substances accumulate in the hollows than in protrusions. An inhomogeneous coloring is then obtained, for example reproducing the appearance of wood. The surface structure of the paper is enhanced by depositing the colored layer.
  • US-A-1,900,294 describes a process which consists of embossing the paper and then coating it with wax.
  • the hollows contain more wax than the projections. It is a sealable paper for food packaging.
  • the pigmented layer has a weight of between 5 and 30 g / m2 in dry conditions and more particularly between 10 and 20 g / m2.
  • the pigmented layer is mat. More preferably, the support is grained, laid paper.
  • the invention further relates to a method of manufacturing a printable coated sheet marked such that successively a flexible support is formed, marks are made on at least one of the faces of this support by making recesses and bumps, deposited on at at least one of the faces of this support at least one pigmented composition and the sheet thus obtained is dried.
  • the flexible support is formed by depositing on a metallic fabric an aqueous dispersion of cellulosic fibers, optionally in admixture with other natural fibers, synthetic, mineral and possibly other additives such as binders, pigments, retention agents, flocculating agents, optical brighteners, dyes, etc.
  • the support can consist essentially of synthetic fibers.
  • the support can also be formed from polyethylene or its mixtures which are biaxially stretched.
  • any pigmented layer may be suitable.
  • a matt pigmented layer is preferred, the degree of mattness being able to be more or less high.
  • the support can be marked during its manufacture on or off the machine by any type of marking device: embossing rollers, watermarks, marker felts, etc.
  • marking can optionally be done hot, in particular for synthetic supports.
  • the support can be coated with any coating device usually used in stationery.
  • any coating device usually used in stationery can be used.
  • an air knife coater or a Bill-Blade coater can be used.
  • the layer is deposited on one or both sides of the support.
  • the printable sheet according to the invention can advantageously be manufactured entirely on a paper machine, therefore without carrying out operations outside the machine which increase the manufacturing costs.
  • the sheet obtained according to the invention can be used for numerous applications such as for example in the fields of printing and / or writing, packaging, labels, etc.
  • the paper obtained has gloss points and a synthetic feel.
  • EXAMPLE B A paper is produced on a machine which is seeded with a grain felt.
  • the grained support is coated with the same composition as for Example A.
  • the paper thus obtained has retained its grainy appearance but it has neither a point of gloss nor a synthetic feel.
  • NB TABER stiffness is measured according to ISO 2493 (1973). The grammage and bulk index are determined according to ISO 534 (1988). The ash rate is determined according to ISO 2144 (1987).
  • the dry extract of the composition is 60%.
  • a laid paper sold by the Applicant under the brand RIVES COLOR′CLASSIC is used, which is a laid paper obtained by a watermark roll.
  • the grammage of this paper is 90 g / m2.
  • the paper is gray in color.
  • This support is coated with the above pigmented composition, using a HAND COATING rotary bar.
  • the weight of the deposited layer is 12 g / m2 dry.
  • the sheet thus obtained has a good printability, very close to that of un laid laid coated papers.
  • the sheet has a rigidity equivalent to that of coated paper of the same grammage.
  • the sheet has a non-synthetic feel.
  • a grained paper sold by the applicant under the brand RIVES COLOR ′ DESIGN having a basis weight of 120 g / m2 and gray in color is used.
  • This support is coated with the pigmented composition of Example 1.
  • the weight of the layer is 18 g / m2 dry.
  • Example 1 As in Example 1, it can be seen that the layer has been deposited in a homogeneous manner and it is observed that the paper obtained always has clearly visible grains. In addition, the sheet has good printability and stiffness comparable to that of ungrained coated paper. The paper has no point of gloss due to the grain.
  • a paper (made of cellulose fibers) is made on a lightning paper machine without smoothing it. It is coated with an air knife with the composition of Example 1. The dry layer weight is 12 g / m2.
  • the sheet thus coated has retained its non-smoothed ("rustic") surface appearance, but its printability has been improved compared to uncoated paper.

Landscapes

  • Laminated Bodies (AREA)
  • Paper (AREA)
  • Measurement Of Radiation (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Credit Cards Or The Like (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)

Abstract

PCT No. PCT/FR91/01047 Sec. 371 Date Aug. 18, 1993 Sec. 102(e) Date Aug. 18, 1993 PCT Filed Dec. 20, 1991 PCT Pub. No. WO92/11413 PCT Pub. Date Jul. 9, 1992The invention relates to a printable, coated, marked sheet which is formed by a marked base covered on at least one of its sides by at least one pigmented coating and more particularly a matt coating. The invention furthermore relates to the manufacturing process of such a sheet.

Description

L'invention concerne une feuile imprimable marquée et comportant au moins une couche pigmentée, et plus particulièrement une couche mate. L'invention concerne en outre le procédé de fabrication d'une telle feuille.The invention relates to a marked printable sheet comprising at least one pigmented layer, and more particularly a matt layer. The invention further relates to the method of manufacturing such a sheet.

Dans la présente description, les termes "feuille marquée" et "papier marqué" signifient une feuille ou respectivement un papier, présentant des marques ou des motifs en relief réalisés à l'aide de rouleaux embosseurs ou filigraneurs ou encore à l'aide de feutres marqueurs, éventuellement à chaud. Il s'agit par exemple d'un papier vergé, les vergeures étant faites à l'aide d'un rouleau filigraneur ; d'un papier grainé, le grain étant réalisé au moyen d'un rouleau embosseur ou d'un feutre marqueur. Il peut s'agir également de papiers non lissés dits "bruts de machine" qui présentent une certaine surface structurée (effet rustique) provenant du marquage du feutre de la machine à papier. Il peut s'agir aussi par exemple d'un film de matière synthétique embossé.In the present description, the terms "marked sheet" and "marked paper" mean a sheet or respectively a paper, presenting marks or patterns in relief produced using embossing rollers or watermarks or using markers markers, possibly hot. It is for example a laid paper, the rods being made using a watermark roll; of a grained paper, the grain being produced by means of an embossing roller or a marker pen. It can also be non-smoothed papers called "machine blanks" which have a certain structured surface (rustic effect) originating from the marking of the felt of the paper machine. It can also be for example an embossed plastic film.

On connaît déjà, selon la technique antérieure, des papiers marqués qui sont utilisables pour l'impression offset. Ces papiers peuvent être grainés ou vergés. Cependant, ils ont une imprimabilité très médiocre et inadaptée à la quadrichromie. Cependant de tels papiers sont intéressants du fait qu'ils présentent une grande diversité d'aspect conféré par le marquage et une grande diversité de toucher.Already known, according to the prior art, marked papers which can be used for offset printing. These papers can be grained or laid. However, they have a very poor printability and unsuitable for four-color printing. However, such papers are interesting because they have a great diversity of appearance conferred by the marking and a great diversity of feel.

On connaît des papiers qui comportent une couche pigmentée afin de leur conférer une très bonne imprimabilité notamment en quadrichromie.Papers are known which have a pigmented layer in order to give them very good printability, in particular in four-color printing.

On connaît aussi des papiers marqués qui comportent au moins une couche pigmentée de façon à les rendre imprimables. De tels papiers sont fabriqués en formant une feuille par la technique humide, c'est-à-dire en utilisant une dispersion aqueuse contenant des fibres de cellulose, éventuellement avec d'autres fibres naturelles, minérales et/ou synthétiques, et éventuellement des liants, colorants et autres additifs couramment utilisés en papeterie. La dispersion aqueuse est déposée sur une grille métallique, essorée puis séchée. La feuille ainsi obtenue est ensuite couchée au moyen de coucheuses avec des compositions contenant des charges (par exemple du kaolin). Puis la feuille couchée est séchée. Enfin, on réalise hors machine, un marquage de la feuille.Also known are marked papers which comprise at least one pigmented layer so as to make them printable. Such papers are produced by forming a sheet by the wet technique, that is to say using an aqueous dispersion containing cellulose fibers, optionally with other natural, mineral and / or synthetic fibers, and optionally binders. , dyes and other additives commonly used in stationery. The aqueous dispersion is placed on a metal grid, wrung out and then dried. The sheet thus obtained is then coated by means coaters with compositions containing fillers (for example kaolin). Then the coated sheet is dried. Finally, a marking of the sheet is carried out outside the machine.

De tels papiers, du fait qu'ils sont marqués après avoir été couchés, présentent comme inconvénient principal que l'opération de grainage rend la couche brillante aux endroits où on excerce la pression par l'intermédiaire des reliefs réalisés sur les rouleaux embosseurs ou filigraneurs ou des reliefs des feutres marqueurs. De plus, l'aspect du papier ainsi fabriqué évoque un papier synthétique et la rigidité du papier est fortement affectée. Ainsi ces papiers présentent des points ou des stries brillants et inesthétiques.The main drawback of such papers, because they are marked after being coated, is that the graining operation makes the layer shiny at the places where pressure is exerted through the reliefs produced on the embossing or watermarking rollers. or reliefs of marker pens. In addition, the appearance of the paper thus produced evokes synthetic paper and the stiffness of the paper is greatly affected. Thus these papers have bright and unsightly dots or streaks.

Un but de l'invention est donc de fournir un papier marqué qui ait une bonne imprimabilité (donc couché), mais qui en même temps conserve la rigidité d'un papier non marqué, de même grammage et qui soit d'aspect mat homogène. Un but de l'invention est donc de fournir un papier du type papier pour l'impression et/ou l'écriture, mat, mais en même temps marqué.An object of the invention is therefore to provide a marked paper which has good printability (therefore coated), but which at the same time retains the rigidity of an unmarked paper, of the same grammage and which is of homogeneous mat appearance. An object of the invention is therefore to provide paper of the paper type for printing and / or writing, matte, but at the same time marked.

Un but de l'invention est par conséquent de fournir un papier qui cumule les avantages des deux sortes de papier et qui évitent leurs travers : un papier couché ayant donc une meilleure imprimabilité avec un marquage doux qui amène de l'originalité sans nuire à l'homogénéïté de la brillance et sans nuire à la rigidité.An object of the invention is therefore to provide a paper which combines the advantages of the two kinds of paper and which avoid their faults: a coated paper therefore having better printability with a soft marking which brings originality without harming the homogeneity of the shine and without harming the rigidity.

Un autre but de l'invention est de fournir un papier couché grainé qui ait une bonne rigidité et évitant à l'utilisateur l'achat d'un papier de grammage sensiblement plus élevé (le choix du grammage du papier était en effet souvent lié à la rigidité requise par l'utilisateur).Another object of the invention is to provide a grained coated paper which has good rigidity and avoids the user buying a paper of significantly heavier grammage (the choice of grammage of the paper was indeed often linked to rigidity required by the user).

La demanderesse a réalisé une telle feuille imprimable couchée, marquée et mate, dont l'aspect de surface (c'est-à-dire la matité ou la brillance) est homogène et n'est pas affectée par le marquage, en effectuant tout d'abord le marquage d'un support et en recouvrant au moins une face de ce support par au moins une couche pigmentée.The Applicant has produced such a coated, marked and matte printable sheet, the surface appearance of which (that is to say the mattness or the gloss) is uniform and is not affected by the marking, by performing all 'first the marking of a support and covering at least one face of this support by at least one pigmented layer.

Le procédé de fabrication d'une telle feuille selon la présente invention va à l'encontre des préjugés de l'Homme du Métier.The method of manufacturing such a sheet according to the present invention goes against the prejudices of those skilled in the art.

En effet, l'Homme du Métier a jusqu'à présent pensé que s'il déposait une couche pigmentée sur un papier qui a été préalablement marqué, la couche boucherait les parties en creux et que par conséquent les marques ne seraient plus visibles après le couchage. De plus, l'Homme du Métier pensait que la couche ne serait pas répartie de façon homogène, les creux se remplissant plus et les bosses étant revêtues plus faiblement par la composition de la couche.Indeed, the skilled person has so far thought that if he deposited a pigmented layer on a paper which has been previously marked, the layer would plug the hollow parts and therefore the marks would no longer be visible after the sleeping. In addition, those skilled in the art thought that the layer would not be distributed uniformly, the hollows filling more and the bumps being coated more weakly by the composition of the layer.

L'invention concerne donc une feuille imprimable couchée marquée, telle qu'elle est constituée d'un support marqué comportant des creux recouvert sur au moins l'une de ses faces d'au moins une couche pigmentée déposée de façon uniforme dans les creux.The invention therefore relates to a marked coated printable sheet, such as it consists of a marked support comprising recesses covered on at least one of its faces with at least one pigmented layer deposited uniformly in the recesses.

Le document japonais JP-A-57 056 212 décrit un papier utilisé pour fabriquer des cuirs synthétiques.The Japanese document JP-A-57 056 212 describes a paper used to manufacture synthetic leathers.

On dépose une résine transparente ou translucide 4′ sur la surface d'un papier transfert qui comporte des reliefs 2, 3. Quand la résine est sèche on imprime un motif 5 avec une encre d'impression.A transparent or translucent resin 4 ′ is deposited on the surface of a transfer paper which has reliefs 2, 3. When the resin is dry, a pattern 5 is printed with a printing ink.

On voit nettement sur les dessins que la résine 4′ remplit complètement les creux.It is clearly seen in the drawings that the resin 4 ′ completely fills the hollows.

Puis on stratifie le papier sur une feuille de matière synthétique, avec application de chaleur et de pression et on enlève le papier transfert.Then the paper is laminated on a sheet of synthetic material, with the application of heat and pressure and the transfer paper is removed.

Il s'agit d'un papier transfert qui comporte des impressions qui sont reportées sur un matériau thermoplastique. D'autres papiers transfert comportent des reliefs. Celui décrit dans le document japonais comporte à la fois des impressions et des reliefs.It is a transfer paper which includes prints which are transferred onto a thermoplastic material. Other transfer papers include reliefs. The one described in the Japanese document contains both prints and reliefs.

Le brevet BE-A-377 927 décrit une feuille marquée sur laquelle on dépose des substances colorées, de façon à provoquer une répartition irrégulière de ces substances, de telle manière qu'il s'amasse plus de substances colorées dans les creux qu'aux saillies. On obtient alors une coloration non homogène, par exemple reproduisant l'aspect du bois. La structure superficielle du papier est réhaussée par dépôt de la couche colorée.Patent BE-A-377,927 describes a marked sheet on which colored substances are deposited, so as to cause an irregular distribution of these substances, in such a way that more colored substances accumulate in the hollows than in protrusions. An inhomogeneous coloring is then obtained, for example reproducing the appearance of wood. The surface structure of the paper is enhanced by depositing the colored layer.

Le brevet US-A-1 900 294 décrit un procédé qui consiste à embosser le papier puis à le revêtir de cire.US-A-1,900,294 describes a process which consists of embossing the paper and then coating it with wax.

Les creux contiennent plus de cire que les saillies. Il s'agit dun papier scellable pour emballage alimentaire.The hollows contain more wax than the projections. It is a sealable paper for food packaging.

Ces documents décrivent donc des papiers embossés et revêtus d'une couche, la couche étant telle qu'elle remplit plus ou moins les creux par rapport aux saillies. Ces documents décrivent donc des papiers selon les à priori de l'homme du métier. De plus, ce ne sont pas des papiers pour l'impression/écriture.These documents therefore describe embossed papers coated with a layer, the layer being such that it more or less fills the recesses with respect to the projections. These documents therefore describe papers according to the a priori of those skilled in the art. In addition, these are not papers for printing / writing.

Selon un mode de réalisation de l'invention, la couche pigmentée a un poids compris entre 5 et 30 g/m² en sec et plus particulièrement entre 10 et 20 g/m².According to one embodiment of the invention, the pigmented layer has a weight of between 5 and 30 g / m² in dry conditions and more particularly between 10 and 20 g / m².

De préférence la couche pigmentée est mate. Plus préférentiellement, le support est un papier grainé, vergé.Preferably the pigmented layer is mat. More preferably, the support is grained, laid paper.

L'invention concerne en outre un procédé de fabrication d'une feuille imprimable couchée marquée tel que successivement on forme un support flexible, on effectue des marques sur au moins une des faces de ce support par réalisation de creux et bosses, on dépose sur au moins une des faces de ce support au moins une composition pigmentée et on sèche la feuille ainsi obtenue.The invention further relates to a method of manufacturing a printable coated sheet marked such that successively a flexible support is formed, marks are made on at least one of the faces of this support by making recesses and bumps, deposited on at at least one of the faces of this support at least one pigmented composition and the sheet thus obtained is dried.

Selon un mode de réalisation préféré de l'invention, on forme le support flexible par dépôt sur une toile métallique d'une dispersion aqueuse de fibres cellulosiques, éventuellement en mélange avec d'autres fibres naturelles, des fibres synthétiques, minérales et éventuellement d'autres additifs comme des liants, pigments, agents de rétention, agents de floculation, azurants optiques, colorants, etc. Le support peut être constitué essentiellement de fibres synthétiques.According to a preferred embodiment of the invention, the flexible support is formed by depositing on a metallic fabric an aqueous dispersion of cellulosic fibers, optionally in admixture with other natural fibers, synthetic, mineral and possibly other additives such as binders, pigments, retention agents, flocculating agents, optical brighteners, dyes, etc. The support can consist essentially of synthetic fibers.

On peut aussi former le support à partir de polyéthylène ou de ses mélanges que l'on étire biaxialement.The support can also be formed from polyethylene or its mixtures which are biaxially stretched.

Selon l'invention, toute couche pigmentée peut convenir. Cependant on préfère une couche pigmentée mate, le degré de matité pouvant être plus ou moins élevé.According to the invention, any pigmented layer may be suitable. However, a matt pigmented layer is preferred, the degree of mattness being able to be more or less high.

Le support peut être marqué lors de sa fabrication sur machine ou hors machine par tout type de dispositif de marquage : rouleaux embosseurs, filigraneurs, feutres marqueurs, etc. Le marquage peut éventuellement être fait à chaud, en particulier pour les supports synthétiques.The support can be marked during its manufacture on or off the machine by any type of marking device: embossing rollers, watermarks, marker felts, etc. The marking can optionally be done hot, in particular for synthetic supports.

Le support peut être couché avec tout dispositif de couchage habituellement utilisé en papeterie. On peut utiliser avantageusement une coucheuse à lame d'air ou une coucheuse du type Bill-Blade. La couche est déposée sur l'une ou les deux faces du support.The support can be coated with any coating device usually used in stationery. Advantageously, an air knife coater or a Bill-Blade coater can be used. The layer is deposited on one or both sides of the support.

La feuille imprimable selon l'invention peut être avantageusement fabriquée entièrement sur machine à papier, donc sans effectuer d'opérations hors machine qui augmentent les coûts de fabrication.The printable sheet according to the invention can advantageously be manufactured entirely on a paper machine, therefore without carrying out operations outside the machine which increase the manufacturing costs.

La feuille obtenue selon l'invention peut être utilisée pour de nombreuses applications comme par exemple dans les domaines de l'impression et/ou l'écriture, l'emballage, les étiquettes, etc.The sheet obtained according to the invention can be used for numerous applications such as for example in the fields of printing and / or writing, packaging, labels, etc.

Les exemples non limitatifs suivants permettront de mieux comprendre comment l'invention peut être mise en pratique.The following nonlimiting examples will make it easier to understand how the invention can be put into practice.

EXEMPLES COMPARATIFSCOMPARATIVE EXAMPLES

EXEMPLE A selon la technique antérieure : On couche un papier avec une couche mate composée de :

  • 40 parties de Kaolin
  • 60 parties de carbonate de calcium
  • 10 parties de latex acrylique.
EXAMPLE A according to the prior art: A paper is coated with a matt layer composed of:
  • 40 parts of Kaolin
  • 60 parts of calcium carbonate
  • 10 parts of acrylic latex.

On graine ce papier couché avec un rouleau graineur.
Le papier obtenu présente des points de brillance et un toucher synthétique.We seed this coated paper with a grain roller.
The paper obtained has gloss points and a synthetic feel.

EXEMPLE B selon l'invention : On réalise sur machine un papier que l'on graine avec un feutre graineur. On couche le support grainé avec la même composition que pour l'exemple A.
Le papier ainsi obtenu a conservé son aspect grainé mais il ne présente ni point de brillance ni un toucher synthétique. EXAMPLE B according to the invention: A paper is produced on a machine which is seeded with a grain felt. The grained support is coated with the same composition as for Example A.
The paper thus obtained has retained its grainy appearance but it has neither a point of gloss nor a synthetic feel.

D'après le tableau 1 où sont données les caractéristiques physiques comparatives, on constate notamment que la rigidité du papier selon l'invention est supérieure à celle du papier selon la technique antérieure.From Table 1 where the comparative physical characteristics are given, it can be seen in particular that the stiffness of the paper according to the invention is greater than that of the paper according to the prior art.

N.B. : La rigidité TABER est mesurée selon la norme ISO 2493 (1973). Le grammage et l'indice de bouffant sont déterminés selon la norme ISO 534 (1988).
Le taux de cendres est déterminé selon la norme ISO 2144 (1987).

Figure imgb0001
NB: TABER stiffness is measured according to ISO 2493 (1973). The grammage and bulk index are determined according to ISO 534 (1988).
The ash rate is determined according to ISO 2144 (1987).
Figure imgb0001

EXEMPLE 1EXAMPLE 1

On réalise une couche pigmentée mate en milieu aqueux, ayant la composition suivante, en sec :

  • carbonate de calcium   55 parties
  • kaolin   45 parties
A matt pigmented layer is produced in an aqueous medium, having the following composition, in dry conditions:
  • calcium carbonate 55 parts
  • kaolin 45 parts

Avec ces 100 parties de charges, on ajoute 20 parties d'un mélange de liant latex styrène-butadiène carboxylé et d'amidon et un azurant optique en faible quantité pour conférer une grande blancheur à la couche.With these 100 parts of fillers, 20 parts of a mixture of carboxylated styrene-butadiene latex binder and starch mixture and a small amount of optical brightener are added to give a high whiteness to the layer.

L'extrait sec de la composition est de 60 %.The dry extract of the composition is 60%.

On utilise comme support de couche, un papier vergé vendu par la Demanderesse sous la marque RIVES COLOR′CLASSIC qui est un papier vergé obtenu par un rouleau filigraneur. Le grammage de ce papier est de 90 g/m². Le papier est de couleur grise.As a layer support, a laid paper sold by the Applicant under the brand RIVES COLOR′CLASSIC is used, which is a laid paper obtained by a watermark roll. The grammage of this paper is 90 g / m². The paper is gray in color.

On couche ce support avec la composition pigmentée ci-dessus, à l'aide d'une barre rotative HAND COATING. Le poids de la couche déposée est de 12 g/m² en sec.This support is coated with the above pigmented composition, using a HAND COATING rotary bar. The weight of the deposited layer is 12 g / m² dry.

Le fait que le support soit gris et que la couche présente une blancheur élevée produit un contraste qui permet de vérifier que la couche a pu être déposée de façon uniforme.The fact that the support is gray and that the layer has a high whiteness produces a contrast which makes it possible to verify that the layer has been able to be deposited in a uniform manner.

On constate que les vergeures sont toujours bien visibles. De plus, la feuille ainsi obtenue a une bonne imprimabilité, très proche de celle des papiers couchés non vergés. En outre, la feuille possède une rigidité équivalente à celle d'un papier couché de même grammage. Enfin, la feuille a un toucher non synthétique.We note that the rods are always clearly visible. In addition, the sheet thus obtained has a good printability, very close to that of un laid laid coated papers. In addition, the sheet has a rigidity equivalent to that of coated paper of the same grammage. Finally, the sheet has a non-synthetic feel.

EXEMPLE 2EXAMPLE 2

On utilise comme support, un papier grainé vendu par la demanderesse sous la marque RIVES COLOR′ DESIGN ayant un grammage de 120 g/m² et de couleur grise.As a support, a grained paper sold by the applicant under the brand RIVES COLOR ′ DESIGN having a basis weight of 120 g / m² and gray in color is used.

On couche ce support avec la composition pigmentée de l'exemple 1. Le poids de la couche est de 18 g/m² en sec.This support is coated with the pigmented composition of Example 1. The weight of the layer is 18 g / m² dry.

Comme dans l'exemple 1, on voit que la couche a été déposée de manière homogène et on observe que le papier obtenu a toujours des grains bien visibles. De plus, la feuille a une bonne imprimabilité et une rigidité comparables à celles d'un papier couché non grainé. Le papier ne présente aucun point de brillance dû au grain.As in Example 1, it can be seen that the layer has been deposited in a homogeneous manner and it is observed that the paper obtained always has clearly visible grains. In addition, the sheet has good printability and stiffness comparable to that of ungrained coated paper. The paper has no point of gloss due to the grain.

EXEMPLE 3EXAMPLE 3

On fabrique un papier (en fibres cellulosiques) sur une machine à papier foudrinier sans le lisser. On le couche par lame d'air avec la composition de l'exemple 1.
Le poids de la couche en sec est de 12 g/m².A paper (made of cellulose fibers) is made on a lightning paper machine without smoothing it. It is coated with an air knife with the composition of Example 1.
The dry layer weight is 12 g / m².

La feuille ainsi couchée a conservé son aspect de surface non lissé (dit "rustique") mais son imprimabilité a été améliorée par rapport au papier non couché.The sheet thus coated has retained its non-smoothed ("rustic") surface appearance, but its printability has been improved compared to uncoated paper.

Claims (4)

  1. Printable ribbed coated sheet, characterized in that it is constituted by a ribbed support comprising hollows, covered on at least one of its faces with at least one pigmented coating deposited uniformly in the hollows.
  2. Sheet according to Claim 1, characterized in that the weight of the coating is included between about 5 and 25 g/m² dry.
  3. Sheet according to one of Claims 1 and 2, characterized in that the pigmented coating is matt.
  4. Sheet according to one of the preceding Claims, characterized in that the support is chosen from grained, laid papers,non-smoothed papers, ribbed films of synthetic material, ribbed films of biaxially drawn polyethylene.
EP92902797A 1990-12-21 1991-12-20 Printable ribbed coated sheet and process for producing same Expired - Lifetime EP0563245B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9016141 1990-12-21
FR9016141A FR2670811B1 (en) 1990-12-21 1990-12-21 LAYERED PRINTED SHEET AND MANUFACTURING METHOD THEREOF.
PCT/FR1991/001047 WO1992011413A1 (en) 1990-12-21 1991-12-20 Printable ribbed coated sheet and process for producing same

Publications (2)

Publication Number Publication Date
EP0563245A1 EP0563245A1 (en) 1993-10-06
EP0563245B1 true EP0563245B1 (en) 1995-10-11

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EP92902797A Expired - Lifetime EP0563245B1 (en) 1990-12-21 1991-12-20 Printable ribbed coated sheet and process for producing same

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EP (1) EP0563245B1 (en)
JP (1) JPH06504494A (en)
AT (1) ATE129037T1 (en)
AU (1) AU662507B2 (en)
BR (1) BR9107178A (en)
CA (1) CA2099871C (en)
DE (1) DE69113814T2 (en)
DK (1) DK0563245T3 (en)
ES (1) ES2081091T3 (en)
FI (1) FI108360B (en)
FR (1) FR2670811B1 (en)
NO (1) NO301846B1 (en)
WO (1) WO1992011413A1 (en)
ZA (1) ZA9110069B (en)

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Publication number Priority date Publication date Assignee Title
GB9411868D0 (en) * 1994-06-14 1994-08-03 Wiggins Teape Group The Limite Paper carrying a surface relief pattern
AU7507600A (en) * 1999-09-21 2001-04-24 Heinrich August Schoeller Sohne Gmbh And Co. Kg. Method for producing paper and corresponding paper
FR2841574B1 (en) * 2002-06-27 2005-04-08 Arjo Wiggins METHOD FOR MANUFACTURING A SHEET CARRYING A RELIEF PATTERN COATED WITH A LAYER HAVING A DEPTH EFFECT

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BE377927A (en) *
US1900294A (en) * 1929-11-04 1933-03-07 George N Lovatt Waxed paper and process of making the same
JPS5756212A (en) * 1980-09-18 1982-04-03 Lonseal Corp Manufacture of print and embossed sheet free from displacement of pattern
JP2535180B2 (en) * 1987-09-18 1996-09-18 共和レザー株式会社 Method for manufacturing laminated body
US4957578A (en) * 1989-03-22 1990-09-18 Westvaco Corporation Process for producing a paperboard product for premium packaging applications

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CA2099871A1 (en) 1992-06-22
DK0563245T3 (en) 1996-02-26
CA2099871C (en) 1999-11-09
US5691042A (en) 1997-11-25
WO1992011413A1 (en) 1992-07-09
BR9107178A (en) 1993-11-03
FR2670811B1 (en) 1995-05-12
EP0563245A1 (en) 1993-10-06
FI932830A (en) 1993-06-18
ATE129037T1 (en) 1995-10-15
JPH06504494A (en) 1994-05-26
NO301846B1 (en) 1997-12-15
DE69113814D1 (en) 1995-11-16
FR2670811A1 (en) 1992-06-26
ZA9110069B (en) 1992-10-28
NO932278L (en) 1993-08-16
FI932830A0 (en) 1993-06-18
AU9147291A (en) 1992-07-22
AU662507B2 (en) 1995-09-07
NO932278D0 (en) 1993-06-21
FI108360B (en) 2002-01-15
DE69113814T2 (en) 1996-04-18
ES2081091T3 (en) 1996-02-16

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