FR2735152A1 - Sheet material formed by nonwoven sheet used to coat laminate surfaces - Google Patents
Sheet material formed by nonwoven sheet used to coat laminate surfaces Download PDFInfo
- Publication number
- FR2735152A1 FR2735152A1 FR9506938A FR9506938A FR2735152A1 FR 2735152 A1 FR2735152 A1 FR 2735152A1 FR 9506938 A FR9506938 A FR 9506938A FR 9506938 A FR9506938 A FR 9506938A FR 2735152 A1 FR2735152 A1 FR 2735152A1
- Authority
- FR
- France
- Prior art keywords
- nonwoven
- sheet material
- fibers
- material formed
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C5/00—Processes for producing special ornamental bodies
- B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
- B44C5/0469—Ornamental plaques, e.g. decorative panels, decorative veneers comprising a decorative sheet and a core formed by one or more resin impregnated sheets of paper
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/18—Paper- or board-based structures for surface covering
- D21H27/22—Structures being applied on the surface by special manufacturing processes, e.g. in presses
- D21H27/26—Structures being applied on the surface by special manufacturing processes, e.g. in presses characterised by the overlay sheet or the top layers of the structures
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/10—Organic non-cellulose fibres
- D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H13/24—Polyesters
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/47—Condensation polymers of aldehydes or ketones
- D21H17/49—Condensation polymers of aldehydes or ketones with compounds containing hydrogen bound to nitrogen
- D21H17/51—Triazines, e.g. melamine
Landscapes
- Laminated Bodies (AREA)
Abstract
Description
MATERIAU EN FEUILLE POUR LA REALISATION DU REVETEMENT
Dans le domaine des produits stratifiés, terme utilisé dans la présente description dans son sens large, on se trouve confronté au problème d'avoir à assurer la finition des surfaces apparentes du matériau stratifié, et ce aussi bien d'un simple point de vue esthétique que pour lui conférer des caractéristiques techniques, variables en fonction des applications, telles que souplesse, résistance à l'abrasion et aux chocs.SHEET MATERIAL FOR THE PRODUCTION OF THE COATING
In the field of laminate products, term used in the present description in its broad sense, we are faced with the problem of having to ensure the finish of the apparent surfaces of the laminate material, and this as well from a simple aesthetic point of view. only to give it technical characteristics, which vary according to the applications, such as flexibility, resistance to abrasion and impact.
A ce jour, pour réaliser une telle finition, on rapporte en surface du matériau stratifié, soit lors de l'opération même de stratification, soit lors d'une phase ultérieure, une couche de finition. To date, in order to achieve such a finish, a laminate material is brought to the surface of the laminated material, either during the very stratification operation, or during a subsequent phase.
Ainsi, dans le cas de panneaux, comme cela ressort des FR-A-2 219 843 et 2 379 387, il a été proposé, pour réaliser la couche de surface, d'utiliser des complexes à base de papier cellulosique imprégné de résine (mélanine par exemple). Thus, in the case of panels, as is apparent from FR-A-2 219 843 and 2 379 387, it has been proposed, to produce the surface layer, to use complexes based on cellulose paper impregnated with resin ( melanin for example).
En pratique, on rapporte à la surface du noyau donnant la rigidité à l'ensemble, noyau qui peut être constitué par exemple par un panneau de copeaux agglomérés, un complexe à base de feuilles de papier comprenant une couche inférieure chargée de manière à former une barrière masquant l'extérieur du panneau, recouverte d'une couche comportant un décor, éventuellement elle-même recouverte d'une couche externe constituée par un papier transparent. In practice, we refer to the surface of the core giving the rigidity to the assembly, a core which can be constituted for example by a panel of agglomerated chips, a complex based on sheets of paper comprising a lower layer loaded so as to form a barrier masking the outside of the panel, covered with a layer comprising a decoration, possibly itself covered with an external layer constituted by a transparent paper.
Une telle solution qui convient dans le cas de panneaux plats, n'est cependant pas toujours adaptée à la réalisation de stratifiés destinés à un post formage ou pour la réalisation de bandes de chant, ni pour les procédés directs de lamination. Such a solution which is suitable in the case of flat panels, is however not always suitable for the production of laminates intended for post-forming or for the production of edgebanding, nor for the direct lamination processes.
Or on a trouvé, et c'est ce qui fait l'objet de la présente invention, un nouveau type de matériau en feuille particulièrement adapté pour la réalisation du revêtement de surface de matériaux stratifiés, obtenus indifféremment selon les techniques haute et basse pression, se présentant sous la forme de plaques ainsi que de stratifiés destinés à un post-formage, voire même comme bande de chant ou de revêtement de tout autre type de structure tel que revêtement de sol, revêtement industriel, panneaux de construction... Now, we have found, and this is the subject of the present invention, a new type of sheet material which is particularly suitable for producing the surface coating of laminated materials, obtained indifferently according to high and low pressure techniques, in the form of plates as well as laminates intended for post-forming, or even as edgebanding or covering of any other type of structure such as floor covering, industrial covering, building panels ...
- D'une manière générale, le matériau de revêtement conforme à l'invention est constitué par une nappe non tissée obtenue selon la technique dite par "voie humide" ou "voie papetière", composée d'un mélange de fibres cellulosiques et de fibres artificielles et/ou synthétiques, et il se caractérise en ce que après réalisation, la nappe non tissée est imprégnée en milieu aqueux d'une résine de type mélamine, phénolique ou urée formol, et ce à raison de 35 à 70 % en poids par rapport au poids de la nappe non tissée de base. - In general, the covering material according to the invention consists of a nonwoven web obtained using the technique known as "wet" or "papermaking", composed of a mixture of cellulosic fibers and fibers artificial and / or synthetic, and it is characterized in that after production, the nonwoven web is impregnated in an aqueous medium with a resin of melamine, phenolic or urea formaldehyde, and this at a rate of 35 to 70% by weight per relative to the weight of the base nonwoven web.
Selon une forme préférentielle de réalisation, le pourcentage de fibres cellulosiques constitue 20 à 60 % en poids du mélange total de fibres. According to a preferred embodiment, the percentage of cellulosic fibers constitutes 20 to 60% by weight of the total mixture of fibers.
I1 a été en effet constaté que si ce pourcentage était inférieur à 20 %, qu'il y avait des difficultés pour réaliser une nappe fibreuse homogène, alors que s'il est supérieur à 60 %, certaines caractéristiques mécaniques du non tissé sont amoindries. I1 has indeed been found that if this percentage was less than 20%, that there were difficulties in producing a homogeneous fibrous web, while if it is greater than 60%, certain mechanical characteristics of the nonwoven are reduced.
La réalisation de la nappe fibreuse non tissée sera faite selon toute technique papetière connue, par exemple en réalisant une suspension fibreuse contenant un mélange de fibres papetières synthétiques ou artificielles conventionnelles avec addition d'un liant. The nonwoven fibrous web will be produced using any known papermaking technique, for example by producing a fibrous suspension containing a mixture of conventional synthetic or artificial papermaking fibers with the addition of a binder.
Le taux d'imprégnation du non tissé en résine sera fonction de son positionnement par rapport à la surface du matériau stratifié qu'il doit recouvrir. The rate of impregnation of the nonwoven resin will depend on its positioning relative to the surface of the laminated material which it must cover.
A titre indicatif, si l'on réalise un complexe tricouches comme dans les solutions conventionnelles, la couche en contact avec la surface du stratifé sera constituée par un non tissé imprégné de 35 à 40 % de résine, alors que la couche extérieure sera, quant à elle, imprégnée à raison de 65 à 70 % de résine. L'imprégnation de résine se fait de manière conventionnelle par passage du non tissé en plein bain, directement à la sortie de la ligne de fabrication. As an indication, if a three-layer complex is produced as in conventional solutions, the layer in contact with the surface of the laminate will consist of a nonwoven impregnated with 35 to 40% resin, while the outer layer will be, as to her, impregnated with 65 to 70% resin. The resin impregnation is carried out in a conventional manner by passing the nonwoven fabric in the full bath, directly at the outlet of the production line.
A titre indicatif, le non tissé conforme à l'invention est réalisé par voie papetière à partir d'une suspension de fibres comprenant 17 % de cellulose, 59 % de fibres polyester, titre 1,7 dtex, coupe 10 mm et 24 % de liants de type acétate acrylique, permet d'obtenir un non tissé qui, avant imprégnation de résine, pèse 23 g/m2. As an indication, the nonwoven according to the invention is produced by papermaking from a suspension of fibers comprising 17% of cellulose, 59% of polyester fibers, title 1.7 dtex, cut 10 mm and 24% of acrylic acetate type binders, allows to obtain a nonwoven which, before resin impregnation, weighs 23 g / m2.
Après imprégnation en milieu aqueux de résine mélamine, on obtient un non tissé pesant environ 150 g/m2. After impregnating melamine resin in an aqueous medium, a nonwoven weighing approximately 150 g / m2 is obtained.
Un tel non tissé imprégné est souple, présente une bonne résistance à l'abrasion et aux chocs lors de son utilisation. Such an impregnated nonwoven is flexible, has good abrasion and impact resistance during use.
Il peut être utilisé comme revêtement de surface de produits stratifiés, aussi bien pour être disposé en dessous d'un décor que pour constituer la couche de surface extérieure. It can be used as a surface coating for laminate products, both to be placed under a decoration and to constitute the outer surface layer.
Il est particulièrement adapté, du fait de sa souplesse, lorsque l'on souhaite réaliser un post formage et/ou recouvrir non seulement les faces extérieures mais également les flans latéraux d'un stratifié sous forme de plaques. It is particularly suitable, because of its flexibility, when it is desired to carry out post-forming and / or cover not only the external faces but also the side blanks of a laminate in the form of plates.
Bien entendu, l'invention n'est pas limitée à l'exemple de réalisation décrit précédemment, mais elle en couvre toutes les variantes réalisées dans le même esprit. Of course, the invention is not limited to the embodiment described above, but it covers all the variants produced in the same spirit.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9506938A FR2735152B1 (en) | 1995-06-07 | 1995-06-07 | SHEET MATERIAL FOR REALIZING THE SURFACE COATING OF LAMINATE PRODUCTS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9506938A FR2735152B1 (en) | 1995-06-07 | 1995-06-07 | SHEET MATERIAL FOR REALIZING THE SURFACE COATING OF LAMINATE PRODUCTS |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2735152A1 true FR2735152A1 (en) | 1996-12-13 |
FR2735152B1 FR2735152B1 (en) | 1997-08-01 |
Family
ID=9479876
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9506938A Expired - Fee Related FR2735152B1 (en) | 1995-06-07 | 1995-06-07 | SHEET MATERIAL FOR REALIZING THE SURFACE COATING OF LAMINATE PRODUCTS |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2735152B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2746438A1 (en) | 2012-12-20 | 2014-06-25 | Resopal Gmbh | Amino-plastic resin film |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR954682A (en) * | 1946-01-25 | 1950-01-04 | ||
FR2219843A1 (en) * | 1973-03-02 | 1974-09-27 | Formica Sa | |
US4044185A (en) * | 1975-01-20 | 1977-08-23 | Westinghouse Electric Corporation | Decorative sheet for solid color laminates |
-
1995
- 1995-06-07 FR FR9506938A patent/FR2735152B1/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR954682A (en) * | 1946-01-25 | 1950-01-04 | ||
FR2219843A1 (en) * | 1973-03-02 | 1974-09-27 | Formica Sa | |
US4044185A (en) * | 1975-01-20 | 1977-08-23 | Westinghouse Electric Corporation | Decorative sheet for solid color laminates |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2746438A1 (en) | 2012-12-20 | 2014-06-25 | Resopal Gmbh | Amino-plastic resin film |
US9592649B2 (en) | 2012-12-20 | 2017-03-14 | Resopal Gmbh | Amino resin film and method of producing the same |
Also Published As
Publication number | Publication date |
---|---|
FR2735152B1 (en) | 1997-08-01 |
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Date | Code | Title | Description |
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ST | Notification of lapse |
Effective date: 20140228 |