ES2404075T3 - Paper cover for manufacturing a flat, printed or printable construction component - Google Patents

Paper cover for manufacturing a flat, printed or printable construction component Download PDF

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Publication number
ES2404075T3
ES2404075T3 ES09707694T ES09707694T ES2404075T3 ES 2404075 T3 ES2404075 T3 ES 2404075T3 ES 09707694 T ES09707694 T ES 09707694T ES 09707694 T ES09707694 T ES 09707694T ES 2404075 T3 ES2404075 T3 ES 2404075T3
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Spain
Prior art keywords
paper cover
paper
resin
printed
ink
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.)
Active
Application number
ES09707694T
Other languages
Spanish (es)
Inventor
Udo Tünte
Frank Petersen
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.)
Huelsta-Werke Huels & Co KG GmbH
Huelsta Werke Huls GmbH and Co KG
Flooring Industries Ltd Sarl
Original Assignee
Huelsta-Werke Huels & Co KG GmbH
Huelsta Werke Huls GmbH and Co KG
Flooring Industries Ltd Sarl
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
Family has litigation
Priority to DE102008008292 priority Critical
Priority to DE102008008292A priority patent/DE102008008292A1/en
Application filed by Huelsta-Werke Huels & Co KG GmbH, Huelsta Werke Huls GmbH and Co KG, Flooring Industries Ltd Sarl filed Critical Huelsta-Werke Huels & Co KG GmbH
Priority to PCT/EP2009/000488 priority patent/WO2009097986A1/en
Application granted granted Critical
Publication of ES2404075T3 publication Critical patent/ES2404075T3/en
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40512477&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2404075(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application status is Active legal-status Critical
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/52Macromolecular coatings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M7/00After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44CPRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C5/00Processes for producing special ornamental bodies
    • B44C5/04Ornamental plaques, e.g. decorative panels, decorative veneers
    • B44C5/0469Ornamental plaques, e.g. decorative panels, decorative veneers comprising a decorative sheet and a core formed by one or more resin impregnated sheets of paper
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H19/00Coated paper; Coating material
    • D21H19/36Coatings with pigments
    • D21H19/38Coatings with pigments characterised by the pigments
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H19/00Coated paper; Coating material
    • D21H19/72Coated paper characterised by the paper substrate
    • D21H19/76Coated paper characterised by the paper substrate the substrate having specific absorbent properties
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H23/00Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22Addition to the formed paper
    • D21H23/70Multistep processes; Apparatus for adding one or several substances in portions or in various ways to the paper, not covered by another single group of this main group
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H27/00Special paper not otherwise provided for, e.g. made by multi-step processes
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H27/00Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/18Paper- or board-based structures for surface covering
    • D21H27/22Structures being applied on the surface by special manufacturing processes, e.g. in presses
    • D21H27/26Structures 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

Abstract

Paper cover (1) for the manufacture of a flat, printed or printable construction component (5), for applications on the floor, wall, ceilings and / or furniture, the paper cover (1) being provided before or after the process for printing, for application on a base body (4) of the construction component (5) under the influence of pressure and heat, the paper cover (1) presenting a fibrous structure (7) presenting fibers (6) and being provided intermediate spaces (8) between the fibers (6), characterized in that at least on the upper face, in the fibrous structure (7), an ink-absorbent mass (9) is provided that at least essentially retracts the fibers (6 ) in the area of the upper face of the fibrous structure (7), and because in the upper face (2) of the paper cover (1) there are open intermediate spaces (8) of the fiber-coated structure (7).

Description

Paper cover for the manufacture of a flat, printed or printable construction component.

The invention relates to a paper cover with the characteristic notes of the preamble of claim 1.

The present invention also relates to a flat, printed or printable construction component, with a paper cover of the aforementioned type, as well as to a process for manufacturing a similar construction component.

From EP-A-1 044 822, EP-A-0 054 405 and DE 197 15 268 A1, paper covers that can be used for the manufacture of a construction component, especially for floor applications, can be deduced. on the wall, ceilings and / or furniture, the respective paper cover having a fibrous structure having fibers, and an ink-absorbing mass being provided on the upper face of the fibrous structure.

Paper covers for the manufacture of flat, printed or printable building components, for applications on the floor, on the wall, ceilings or furniture, are also known in practice. In the case of a known printing paper, an absorbent layer of ink is applied to the fibrous structure of the paper cover itself. Investigations that have been carried out by the applicant have shown that the particle of the ink absorbing layer is located on average, in some micrometers. The ink absorbing layer which, as the main constituent components, has silicon dioxide and titanium dioxide, is applied throughout the surface on the upper face of the paper structure, and is placed on top of it, covering and completely covering the structure of the paper. In the investigations carried out by the applicant it has been found that the ink absorbing layer of course fits superficially into the fibrous structure, however essentially it is arranged on the fibrous structure, and covers and hides, and therefore closes, the fibers and the intermediate spaces that are between the fibers. Finally, in the known paper there is a uniform surface, essentially closed, which still leads to a very good printing result.

The applicant has subsequently found that no irrelevant problems occur with the necessary impregnation with resin, for the subsequent preparation of the paper. If after printing, the known paper is impregnated with resin from above, it has been found that sufficient thorough impregnation with paper resin, and over the entire surface, cannot be guaranteed. The consequence is that, after pressing, the paper does not bond sufficiently with the construction component.

For the solution of the problem mentioned in the known paper, the applicant has then tried to impregnate the paper with resin from below, as is basically known from EP 1 749 676 A1. This publication refers to a process and a device for the manufacture of a paper web, printable by an inkjet printing process, which is then applied on plates or boards. In this case, what matters is to make available an inkjet printing procedure, the result of printing on the surface of the objects to be printed corresponding to the highest quality requirements corresponding to the appearance. To this end, it is provided that an absorbent paper web for liquid synthetic resin, throughout its entire thickness, is soaked with liquid synthetic resin from the underside, such that the synthetic resin does not completely cross the paper web, of so that the other side of the paper web, at least essentially, is free of synthetic resin. Finally, the paper web known from EP 1 749 676 A1, has an area on the upper side, essentially resin free, which is approximately 50% of the thickness of the paper web. However, it has been proven in the tests that when pressing the resin impregnated paper web, on the lower side, with a construction component arranged on the lower side and with a protective layer on the upper side, a joint is of course enough of the paper band with the construction component, but not of the protective layer with the paper band.

It is the mission of the present invention to make available a paper cover of the type mentioned at the beginning, in which on the one hand, a very good printing result is possible, and in which on the other hand, a good bonding with the base body of a construction component and, where appropriate, with a protective layer on the upper face.

For the solution of the aforementioned mission, it is provided that at least in the upper face, in the fibrous structure, an ink-absorbing mass is provided that has at least essentially the area of the upper face, of the fibers, and that on the upper side of the paper cover there are open intermediate spaces of the coated fibrous structure, that is, they are not covered by the ink absorbing mass. At least on the upper face, an absorbent mass of ink having an average particle size of less than 1000 nm can be provided in the fibrous structure. Alternatively, the fibers of the fibrous structure are covered on the upper face only by areas, with an ink absorbing mass that can be embedded in the fibrous structure and / or applied thereon, such that on the upper face of the cover of paper, remaining, open intermediate spaces of the fibrous structure.

The invention is based primarily on the fundamental idea of providing an ink-absorbing mass, such as the so-called pigment line on which printing ink or ink is applied. At the same time it happens that, by means of the ink absorbent mass, there is no almost closed flat surface. In the coating of the fibers, or in the use of ink absorbing particles in the range of nanometers, there are intermediate open spaces in the fibrous structure, which guarantee a sufficient thorough impregnation with resin of the paper cover. If the upper face of the fibrous structure is only covered by areas with the ink absorbing mass, in any case there are free zones that also guarantee the necessary thorough impregnation with resin.

After theoretical reflections, the solution according to the invention was rejected in principle by the applicant, since it had been feared that the paper cover with the ink absorbing mass inserted or applied, and in which ultimately the structure can still be recognized caused by the cellulose fibers, despite the absorbent mass of ink, it does not allow obtaining sufficient printing results. Finally, in the invention there is no closed printing surface, essentially flat, as in the current state of the art. After practical tests that have been carried out later, it has been found, however, that the result of the printing that can be obtained on the paper according to the invention does not differ, or only insignificantly, from the result of the printing that It is obtained with the well-known paper mentioned at the beginning.

Moreover, the invention offers the possibility that the paper cover with the ink absorbing material can be printed both before and after the placement on the base body of a construction component. Thus, it is possible, on the one hand, to print the paper first, and after printing, store it, for example, in rolls or in sheets. Then, the printed paper cover can be pressed with the base body of the construction component under the influence of pressure and heat, the resin being melted first and then hardening immediately. Alternatively it is possible to apply a paper cover partially impregnated with resin and without printing, with the ink absorbing mass inserted or applied, on the base body in the manner and manner described above, and then, print the base body with the cover of paper already applied.

On the one hand, to maintain broadly the fibrous structure and, therefore, the intermediate spaces between the fibers, on the upper face of the paper cover, or to leave them uncovered, and on the other hand, to make available a wide coating of the fibers in the upper face and, therefore, a good ink absorbing zone, the particles of the ink absorbing mass should have an average diameter between 50 nm and 400 nm, preferably between 100 nm and 300 nm, and in special between 150 nm and 250 nm. Very good tests have been obtained with particle sizes in the range of about 200 nm in diameter.

In investigations in scanning electron microscopy, it has been found that on the upper face of the paper cover, between the fibers coated or covered with the ink absorbing mass, a multitude of intermediate spaces with a length greater than 20 should be provided m, preferably greater than 30 µm, and especially greater than 40 µm. It is understood here that intermediate spaces with a length clearly greater than 40 µm can also be provided. For the rest, the intermediate spaces should have an area of the opening larger than 250 m2, preferably greater than 500 m2 and, especially, more than 750 m2. It is also understood here that surfaces of the openings clearly larger than 750 µm may be provided. In the case of intermediate spaces with the aforementioned dimensions, excellent resin impregnation of the paper cover according to the invention occurs, regardless of whether the resin impregnation is carried out from above or, if not, from below. .

Moreover, in the paper according to the invention, it is especially advantageous when the aforementioned dimensions of the intermediate spaces are not provided only "sporadically", but when they are on the entire upper face of the paper cover . It has been found that on the upper face, per unit area [nm2], at least one intermediate space should be provided on average, preferably more than three, and especially more than ten intermediate spaces of the type mentioned above.

To prevent a closure of the intermediate spaces between the cellulose fibers of the fibrous structure, by the ink absorbing mass, the weight per unit area of the ink absorbing mass should preferably be between 0.5 g / m2 and 20 g / m2. With this, in the paper cover according to the invention, a clearly smaller proportion of ink absorbing mass is used than in the current state of the art. This has a considerable impact on the acquisition costs of the paper cover. So the costs of the paper according to the invention are 3 times lower than in the paper quoted at the beginning, known in practice.

For the rest, it has been proven that an especially good result of printing is produced, when the ink absorbing mass also has, in any case, titanium dioxide, barium sulfate and silicates, especially as main constituent components.

Especially favorable is also that the ink absorbent mass is basic. It has been proven that the resin to be applied is usually basic, that is, it has a pH value greater than 7. It has also been proven that the resin solidifies more easily or more quickly in an acidic environment, than in a basic environment. . To ensure a good impregnation thoroughly with resin, the absorbent mass of ink and, where appropriate, also the role of the fibrous structure should be basic.

For the rest, in the paper or in the fibrous structure, it should be a paper impregnated with synthetic resin, which should have a weight per unit area, without impregnating part with resin, but with ink absorbing mass, between 30 g / m2 and 300 g / m2, preferably between 50 g / m2 and 120 g / m2 and, in particular, about 70 g / m2.

The paper cover according to the invention, with the ink absorbing mass, inserted in the fibrous structure, before printing, can basically be not impregnated with resin and not impregnated with resin until after printing. But basically it is also possible that, prior to printing, the paper cover is impregnated with resin from the underside in a defined manner, such that the upper area of the fibrous structure with little or no resin proportion, extends from preference for a maximum of 30% of the thickness of the fibrous structure. In particular, the upper area of the paper cover extends only for a maximum of 20% of the thickness of the paper cover, and more preferably for a maximum of 10% of the thickness of the paper cover, being provided as possible. and expressly essential for the invention, each individual value between 0.1% of the thickness of the paper cover and 30% of the thickness of the paper cover.

In this regard, it should also be noted that between the upper part of the paper cover, with little or no resin proportion, and the lower part of the paper cover, with a high proportion of resin, no line is produced in practice exact separator, since in a resin impregnation from below, there is a decrease in the concentration of the resin, from the bottom up, so that the maximum concentration occurs in the lower face. The passage from the upper area of the paper cover to the lower area of the paper cover is characterized by a sharp variation in the concentration drop, while the concentration drop from the lower face of the lower area of the paper cover. paper to its upper face, on the one hand, and from the lower face of the upper area of the paper cover, to its upper face, on the other hand, is essentially constant, or decreases continuously.

Moreover, the above-mentioned values of the thickness of the upper area of the paper cover, refer to the not yet pressed state of the paper cover, that is, when the paper cover is not yet applied on the base body of the construction component, under the influence of pressure and / or heat.

In addition, in the defined partial impregnation with resin, cited above, another important advantage is produced anyway. Usually, on a printed construction component, in any case when placed in the floor area, a protective top layer is applied under the influence of pressure and heat, which is also impregnated with resin. In the case of the construction component known from EP 1 749 676 A1, after pressing the protective layer, it is usually added that between the resin of the protective layer and the resin of the paper cover, it remains Essential a resin-free cover area. Since the resin of the protective layer does not bind sufficiently with that of the paper cover, this can lead, as discussed at the beginning, to the detachment of the protective layer. With respect to the present invention, it has been recognized that sufficient bonding of the resin of the paper cover with the protective layer can be guaranteed, by means of the relatively large intermediate spaces between the fibers.

In order to obtain a defined thickness of the resin layer in the paper cover, the amount of the proportion of resin fed to the lower face is technologically controlled, as a function of the porosity and, therefore, of the power absorbent of the paper cover, and the viscosity of the resin. If resin impregnation is carried out, for example, by means of a roller that moves through an immersion bath, guiding the paper cover with the lower face on a roller, the immersion depth of the roller is important as other process parameters , the surface quality of the roller, the diameter of the roller, the clamping pressure between the paper cover and the roller, and the transport speed of the paper cover. It is understood that the resin can also be applied on the paper cover, otherwise, for example, by application with nozzles.

In order to obtain a defined layer thickness of the upper area of the paper cover, it is further offered that the paper cover be impregnated from the upper face in a defined manner, with a sealing liquid that is mixed with the resin , so that it forms for the resin, a barrier layer that preferably amounts to a maximum of 30% of the thickness of the paper cover. The application of the sealing liquid can be carried out in the same way as the application of the resin, or also basically in another way. After resin impregnation of the paper cover, the sealing liquid is evaporated. The space initially occupied by the sealing liquid then forms the upper area of the paper cover. In any case it is understood that basically it is also possible to add the sealing liquid, so that ultimately no defined barrier layer is produced.

In this regard it is preferred that the sealing liquid contains the ink absorbent mass according to the invention, which after evaporation is deposited in the upper area of the paper cover, so that the coating or coating of the fibers then occurs. .

But it is also possible that the ink absorbent mass is applied in conjunction, or then, with the impregnation with sealing liquid. The ink absorbent mass can be applied here separately or together with the sealing liquid, by lamination, spraying, scratching, coating, coating by air brush, casting procedure, sheet pressing, fabric pressing, casting process. suspended screens and / or by application of slotted nozzles.

The resin impregnation can be carried out with only one resin, or in certain cases, in several stages of resin impregnation, also with different resins, to obtain certain characteristics of the paper cover. After impregnation with resin, drying of the paper cover and then the application of the ink absorbent mass can be carried out. To this can be added again, drying. In an alternative embodiment, a so-called double wet treatment is carried out. In this case, the ink absorbing material is applied, before the resin is completely dry, that is, it is still in a liquid or gelled state. Then the whole drying of the resin impregnated paper cover and provided with the ink absorbing material is carried out.

In tests that have been carried out, it has been found, moreover, that the weight per unit area of the resin impregnation portion, in the paper according to the invention, should be between 5 g / m2 and 300 g / m2, preferably between 20 g / m2 and 100 g / m2, to ensure a good bond between the paper cover and the base body of the construction component and, where appropriate, of the protective layer to be provided.

In the resin, it is preferably a reactivable resin, especially an aminoplast resin, such as a melamine resin or a uric resin. Preferably, resins of the group of diallyl phthalates, epoxy resins, carbamide resins, uric acid copolyester and acetylsalicylic acid ester, melamine formaldehyde resins, melamine-phenol-formaldehyde resins, phenol-formaldehyde resins, poly (meth) acrylates are used, or unsaturated polyester resins.

For the rest, it has been found that in order to obtain good printing results, it is favorable that the paper cover be heated or heated, before, during and / or after the application of the printed layer. For this, the corresponding heating devices that heat the paper cover or the ink absorbing mass may be provided. This can be done, for example, by the corresponding blowers. Instead of these, or also additionally, infrared heating devices may be provided, especially NIR [non-infrared] heating devices and / or microwave heating devices, which act directly on the water content in the ink layer. The heating or heating can be carried out, as set out before, before, during and / or after printing. For this, one or several heating devices may be provided, the heated section being provided, not only punctual, but also can be extended over a larger area, for example, between 0 and 5 m, and especially between 0 and 2 m , before and / or after each printing position.

An anterior and posterior surface heating has been demonstrated as preferred, along heated surfaces, on which the paper is conducted before and after printing. Favorably, the temperature of these surfaces during the previous and / or subsequent heating should be between 30 ° C and 40 ° C, preferably around 35 ° C.

In the area of the recording head, good experiences have been made with a radiant heating source, which acts directly on the water content of the ink layer. Here, heating at 42 ° C has been shown to be favorable. The evacuation of the generated water vapor should be carried out by means of a controlled air flow. Otherwise, the temperature should be controlled by a sensor, especially in the area of the recording head, to prevent overheating or, if not, insufficient heating. In any case, the aforementioned heating, leads to an immediate drying of the ink layer, in the ink absorbing layer, as soon as the printing ink or ink, is deposited by the engraving head, as well as a drying of the fibrous structure In this case it should be noted that the above-mentioned heating or heating also corresponds to its own inventive importance, that is, regardless of the paper cover according to the invention.

After drying, the paper cover is either cut into sheets, or, if not, rolled up as a continuous band. Basically it is also possible in the process according to the invention, that even before cutting / rolling, printing is carried out.

Moreover, the present invention relates to a printed or printable flat building component, especially for applications on the floor, on the wall, ceilings and / or furniture, with a base body, flat and with a printable paper cover or printed, according to any of the preceding requirements, applied on the base body. In the case of the invention, it follows that the paper cover according to the invention is basically printed before further preparation, and that is when it is applied on the base body of the construction component. However, it is also possible to first wrap the paper on a construction component, then print it and finally varnish or otherwise coat. Thus, the paper according to the invention is not limited to a certain form of manufacture.

It is preferred that the base body has been directly coated with the paper cover in a rapid intermittent pressing procedure. In this case the paper cover impregnated with resin hardens, liquefying directly on the base plate of a corresponding press, under pressure and heat. Essential in the rapid intermittent pressing procedure is first, that the base body, as a support plate, cannot yield, or only does so insignificantly, to the clamping pressure that is usually located between 200 and 600 N / cm2. In addition, the base bodies and the paper covers to be applied cannot touch the hot plates of the press during feeding and unloading. The temperature during pressing is usually between 80 ° C and 250 ° C, preferably between 140 ° C and 200 ° C. The respective temperature during pressing is a function of the reactivation temperature of the resin. Finally, attention must be paid to the critical residence time, that is, the time from the first contact of the resin impregnated paper cover, with the pressing plate, until the necessary clamping pressure is reached. The critical residence time should be extremely short.

Although it is basically possible to print the paper cover according to the invention with all known printing methods, especially also with gravure printing, printing of the paper cover is carried out, preferably, by a digital printing process, especially, an inkjet printing procedure. In this case, the so-called digital inkjet printers are then in action, with which excellent printing results can be obtained. In addition, they can be projected or unlike in the procedure of gravure or decorations, in a simple way, assisted by computer, and can be printed in the short term. Otherwise, unlike the gravure procedure, it is also possible that the paper cover does not print until after resin impregnation.

Preferably, inks are used here for printing inks containing solvents and / or inks with water. Basically, ultraviolet based inking systems can also be used. However, these have the disadvantage of a development of odors. In addition, problems may occur in pressing.

In addition, the present invention relates to a process for the manufacture of a flat, printed or printable construction component, of the aforementioned type, without further deducing the characteristic notes of the procedure, from the aforementioned explanations.

For the rest, it is hereby expressly noted that the data and intervals of zones, mentioned above and subsequent ones, also comprise in the decimal zone, all the individual values located within the data and intervals of zones, and the intermediate intervals or data of intermediate zones, and are considered essential for the invention, without explicit mention of individual values or intermediate intervals or intermediate zone data being necessary.

Examples of embodiment of the invention are described in detail below, hand in hand with the drawing.

Here are shown

Figure 1 A schematic cross-sectional view of a paper cover according to the invention.

Figure 2 A schematic cross-sectional view of a printed and thoroughly impregnated paper cover with resin.

Figure 3 A schematic cross-sectional view of a flat construction component on whose base body the paper cover has been applied.

Figure 4 An enlarged representation of the upper face of the paper cover according to the invention.

Figure 5 A view corresponding to that of Figure 4, of the upper face of a known paper cover, on the same scale as Figure 4.

Figure 6 A view corresponding to that of Figure 4, of the upper face of the paper cover according to the invention, on a larger scale.

Figure 7 A view corresponding to that of Figure 4, of the upper face of the known paper cover, on the same scale as the representation according to Figure 6.

Figure 8 A view corresponding to that of Figure 4, of the paper cover according to the invention, on a larger scale.

Figure 9 A view corresponding to that of Figure 4, of the upper face of the known paper cover, on the same scale as the representation according to Figure 8.

Figure 10 An operation diagram of the process according to the invention, for the manufacture of a construction component according to the invention, and

Figure 11 An alternative operation diagram of the method according to the invention.

A paper cover 1 is schematically shown in Figure 1. The paper cover 1 is composed of a classic liquid absorbent paper material, in our case, a paper impregnated with synthetic resin. The synthetic resin impregnated paper has a fibrous structure, recognizable in Figures 4, 6 and 8, which is constituted by a multitude of fibers, in this case, cellulose fibers. The paper cover 1 as such may be part of a roll or a sheet. In this case, the paper cover 1 has an upper face 2 for subsequent printing, and a lower face 3 which is intended for application on the base body 4 of a construction component 5. In the construction component 5 it can be any flat, printed or printable element, which can be found in the area of the floor, wall, ceiling and / or furniture. In particular, in the case of constructive component 5, it is a plate or a panel.

Although Figures 4, 6 and 8 show only a view of the upper face of the paper cover 1, it follows from these representations that the paper cover 1 has a multitude of fibers 6 that ultimately form a three-dimensional fibrous structure 7 . Between the insulated fibers 6 are intermediate spaces 8.

As can be deduced from Figure 1, an ink-absorbing mass 9 is provided on the upper face in the fibrous structure 7, which ultimately forms an ink-absorbing layer, deposited, at least essentially, on the upper face. The ink absorbing mass 9 does not protrude upwards, or does so insignificantly, from the fibrous structure 7. Since the ink-absorbent mass 9 is very fine-grained, that is, it has particles with an average diameter in the range of nanometers, the ink-absorbing mass 9 covers the fibers 6 of the upper area of the fibrous structure 7. Due to the grain fineness of the particles of the ink absorbing mass 9, open intermediate spaces 8 remain on the upper face of the coated fibrous structure 7, which also forms the upper face 2 of the paper cover 1. This follows in particular from Figures 4, 6 and 8 which also clarify that the ink absorbing mass 9 is not placed on the upper face of the fibrous structure 7 in such a way that the fibers 6 can no longer be recognized as such. . The fibers 6 remain uncovered, at least partially.

Figures 4, 6 and 8 clarify that despite the ink-absorbing mass 9 on the upper face, the fibrous structure 7 can still be recognized, at least partially, and that there are open intermediate spaces 8 between the fibers 6. This note The characteristic ultimately represents the decisive difference with the current state of the art, as follows from a comparison with Figures 5, 7 and 9. The two figures cited above show that the fibrous structure of the known paper cover, there already You can't recognize anymore. The upper side of the paper cover is formed by an absorbent layer of coarse-grained ink. The diameter of these particles is located on average in some micrometers. In this case, unlike that of the paper cover 1 according to the invention, the ink-absorbing mass, due to the relatively thick particles, rests ultimately on the fibrous structure, covers it and masks it on it. case so strongly that it can no longer be recognized. As a consequence, there are no intermediate spaces left open upwards.

The intermediate spaces provided between the isolated particles of the ink-absorbing layer shown in Figures 5, 7 and 9, are distributed with relative uniformity in the known paper cover, and have both a small length, as well as a small opening surface . This is different than in the paper cover 1 according to the invention. As can be deduced from Figures 4, 6 and 8, the intermediate spaces 8 between the fibers 6 of the fibrous structure 7, are very unevenly distributed, have a clearly longer length and a clearly larger opening surface than in the current state of the technique. Finally, a multitude of intermediate spaces 8 with a length of more than 40 µm, and an opening surface of more than 750 µm2 are provided on the paper cover 1 according to the invention. Finally, the intermediate spaces 8 of such size are distributed unevenly and irregularly throughout the paper cover 1, being provided on average, no more than 10 such intermediate spaces 8 per unit area [mm2].

The weight per unit area of the ink absorbing mass 9 is relatively small, and in the present case it is located around 5 g / m2. For the small particle size, which is located on average at about 200 nm, a weight per unit of such a small surface area is sufficient to at least cover the fibers 6 in the upper area of the fibrous structure 7 and, at the same time, to leave a sufficient number of intermediate spaces 8 open. However, it should be noted that, unlike the representation according to Figure 1, it is basically also possible for the ink-absorbent mass 9 to extend to the central zone, the lower zone, or even to the lower face 3 of the structure 7 fibrous But in any case, for the indispensable impregnation with resin, it is necessary that at each level of the fibrous structure 7, the open intermediate spaces described above exist.

The ink-absorbent mass 9 itself has titanium dioxide, barium sulfate and silicates as its main components and is otherwise basic.

As already mentioned before, the fibrous structure 7 of the paper cover 1 is formed by paper impregnated with synthetic resin, which has a weight per unit area of about 70 g / m2, as shown in Figure 1, that is, without the participation of impregnation with resin, but with mass 9 absorbing ink. It is understood that paper impregnated with synthetic resin may also have a much smaller, or much larger, weight per unit area. Paper cover 1 is unprinted and not impregnated with resin. For further preparation, the paper cover 1 is printed first, that is, it is provided with a printed layer 10 and then impregnated with resin. This state is schematically represented in Figure 2, the cover 1 of paper being thoroughly impregnated with resin, completely in its entire thickness. In this case the resin concentration can be basically the same throughout the thickness of the paper cover 1 or, if not, also vary from one side to the other or, if not, also from both sides towards the center. In any case, the resin, in which, preferably, it is a melamine resin, or whose viscosity is adapted to the type of paper material of the paper cover 1, and also to the resin impregnation process, of such that a thorough full impregnation with resin of the paper cover 1 is guaranteed, in all its thickness. The weight per unit area of the resin impregnation portion is, in the present case, at about 80 g / m2.

It should be noted that the paper cover 1, before printing, may be impregnated with resin, also in a defined manner from the lower face 3, such that the upper area of the fibrous structure 7 extends with little or no portion of resin, over a predetermined thickness, preferably over a maximum of 30% of the thickness of the fibrous structure 7.

The printed or ink layer 10 has been applied in the present case, by means of a digital injection printer not shown, that is, by the inkjet printing process, although other printing procedures are also possible, especially the gravure printing . Here they can be used as printing inks, both inks with solvent content, as well as inks with water.

In figure 3, the constructive component 5, which has the aforementioned base plane body 4, is shown in fragmentary form, especially with rectangular shape. The base body 4 can be structured in one or several layers, and in particular consist of materials derived from wood and / or plastic. In particular, in the case of the constructive component 5, it may be plates of wood-derived materials, such as MDF [medium density wood fibers], HDF [high density wood fibers] or DKS [ decorative laminates], or of the so-called HPL plates (high pressure laminates). But in the case of the constructive component 5, it can also be thicker sheets, cardboard or plasterboard.

In the case of the constructive component 5 represented in FIG. 3, on the upper face 11 of the base body 4, the printed cover 1 of paper is applied and joined tightly therewith. Otherwise, a protective layer 12 is applied to the printed layer 10. The protective layer 12 which is also impregnated with resin, serves to protect the printed layer 10, from ultraviolet radiation, and especially from mechanical deterioration. So that the printed layer 10 can still be recognized, the protective layer 12 is transparent. Very hard particles, such as corundum, may be interspersed in the protective layer 12. It should be noted that the protective layer 12 is usually made in those building components 5 that are installed in the floor area. But basically the protective layer 12 can also be dispensed with. This is especially true for wall and ceiling applications, as well as furniture elements.

In figure 10 the process according to the invention is schematically represented, in a rapid intermittent pressing procedure. The procedure begins with the known manufacture of the paper itself, in a paper machine, which is represented in step A of the procedure. Paper cover 1 is still part of an almost infinite paper band here.

In papermaking, a surface treatment is opened in step B by smoothing the upper face 2, for the homogenization of the surface and, in certain cases, a subsequent fine scraping of the previously smoothed surface. The ink absorbent mass 9 is then applied or inserted on, or on the upper face 2.

After the surface treatment of the paper cover 1 provided with the ink absorbing mass 9, in step C of the process the printing and, therefore, the application of the printed layer 10 is carried out. Printing is carried out in the inkjet printing process, by digital injection printer. During printing, the paper cover 1 may still be part of a paper web, or already part of a sheet cut from the paper web. The cutting in sheets can also be carried out later. But part of stage C of the procedure is also the heating of the paper cover before, during and / or after the application of the ink layer. In the present case, the paper cover 1 is preheated between 30 ° C and 40 ° C, preferably at about 35 ° C, so that, when printing, the ink is already on the preheated printed layer, which favors drying. During the application of the ink, heating is carried out at 42 ° C by means of a radiant heating device that is directed towards the area of the cover 1 of paper that has just been printed. Finally, it is also carried out, after printing, by a third heating device (for example, by a heated seat plate), a so-called further heating, also between 30 ° C and 40 ° C.

In step D of the process, the full impregnation with resin of the paper cover 1 is carried out thoroughly, so that the condition according to Figure 2 is obtained.

In step E of the procedure, the paper cover 1 is pressed with the base body 4. At the same time the protective layer 12 is also pressed into a corresponding pressing device. Under the pressure and heat of the pressing plates of the pressing device, the resin is melted in the paper cover 1, and the resin in the protective layer 12, and hardens immediately during the pressing process, so that it produces, on the one hand, a solid joint of the paper cover 1 with the base body 4 and, on the other hand, a solid joint of the protective layer 12 on the paper cover 1. Because of the impregnation with resin of the paper cover 1, in the pressing it is otherwise possible to achieve such a solid bond between all the materials of the layers, that it is not necessary to fear an unpredicted detachment.

An alternative embodiment of the process is shown in Figure 11. The stages a and b of the process correspond to the stages A and B mentioned above of the process, of the paper manufacturing, and the application of the ink absorbing mass. This is followed by step c of the procedure, in which the paper web is partially impregnated with resin from the bottom side. Partial impregnation with resin is carried out in a defined manner such that the upper area of the fibrous structure 7, but in any case the upper face of the fibrous structure 7 and the ink absorbing mass 9 that is there, remain At least essentially, resin free.

In step d of the procedure, the paper cover 1 is applied, which is then already cut into sheets, on the base body 4, by pressing on said pressing device. In this case, the paper cover 1 is still unprinted, and it also has no protective layer 12 on the upper face.

After pressing the cover 1 of paper still unprinted, on the base body 4, the constructive component 5 is now printed without printing, in step e of the procedure, also in the inkjet printing process. In parallel with this, or immediately thereafter, heating of the applied printed layer 10 is carried out. Naturally, here too, a preheating of the paper cover 1 can be carried out. To this is connected in step f of the process, the final pressing of the protective layer 12 in the pressing device, to join the protective layer 12 with the paper cover 1, after melting and hardening of the resin in the layer 12 protective.

Although the schematic procedure depicted in Figure 11, is more expensive from the point of view of the process, it has the advantage that non-printed construction components 5 can be held without further reserve, and short printing can be carried out term, if necessary, according to the client's desire.

List of reference symbols

one
Paper cover

2
Upper face

3
Underside

4
Base body

5
Constructive component

6
Fibers

7
Fibrous structure

8
Intermediate spaces

9
Ink absorbing mass

10
 Printed layer

eleven
 Upper face

12
 Protective layer

Claims (14)

  1.  CLAIMS
    1. Paper cover (1) for the manufacture of a flat, printed or printable construction component (5), for floor, wall, ceiling and / or furniture applications, the paper cover (1) being provided before or after the printing process, for application on a base body (4) of the construction component (5) under the influence of pressure and heat, the paper cover (1) presenting a fibrous structure (7) having fibers (6) and intermediate spaces (8) being provided between the fibers (6),
    characterized because
    at least in the upper face, in the fibrous structure (7), an ink-absorbent mass (9) is provided which at least essentially covers the fibers (6) in the area of the upper face of the structure (7) fibrous, and because on the upper face (2) of the paper cover (1) there are open intermediate spaces (8) of the coated fibrous structure (7).
  2. 2.
     Paper cover according to claim 1, characterized in that the ink absorbent mass (9) has particles with an average diameter between 50 nm and 400 nm, preferably between 100 nm and 300 nm, and especially between 150 nm and 250 nm.
  3. 3.
     Paper cover according to claim 1 or 2, characterized in that, on the upper face (2) of the paper cover (1), a multitude of open intermediate spaces (8) with a length greater than 20 µm, of preference greater than 30 µm, and especially greater than 40 µm, and / or with an opening surface greater than 250 µm, preferably greater than 500 µm and, especially greater than 750 µm.
  4. Four.
     Paper cover according to any of the preceding claims, characterized in that, on the upper face (2), per unit area [m2], there is provided on average, at least one intermediate space (8), preferably more than three and , especially more than 10 intermediate spaces (8).
  5. 5.
     Paper cover according to any of the preceding claims, characterized in that the fibrous structure (7) is formed by a paper impregnated with synthetic resin, which has a weight per unit area, without the resin impregnation part, but with mass (9 ) ink absorber, between 30 g / m2 and 300 g / m2, preferably between 50 g / m2 and 120 g / m2 and, especially about 70 g / m2.
  6. 6.
     Paper cover according to one of the preceding claims, characterized in that the paper cover (1), before printing, is not impregnated with resin, and is not impregnated with resin until after printing, or because, before printing , the paper cover (1) is impregnated with resin from the lower face (3), in a defined manner, such that the upper area of the fibrous structure (7) with little or no resin proportion, extends a maximum of 30% of the thickness of the fibrous structure (7).
  7. 7.
     Paper cover according to any of the preceding claims, characterized in that the weight per unit area of the resin impregnation portion is between 5 g / m2 and 300 g / m2, preferably between 20 g / m2 and 100 g / m2
  8. 8.
     Paper cover according to any of the preceding claims, characterized in that the paper cover (1) has been heated or heated, before, during and / or after application of the ink layer (10), and because the heating / heating it is preferably carried out at a temperature below the reactivation temperature of the resin and, especially, in the range between 30 ° C and 150 ° C.
  9. 9.
     Construction component (5) flat, printed or printable, especially for applications on the floor, on the wall, ceilings and / or furniture, with a flat base body (4), and with a paper cover (1), printed or printable, according to any of the preceding claims, applied on the base body (4).
  10. 10.
     Constructive component according to claim 9, characterized in that the paper cover (1) has been printed before or after application on the base body (4).
  11. eleven.
     Constructive component according to claim 9 or 10, characterized in that the base body (4) has been directly coated with the paper cover (1), in a rapid intermittent pressing process.
  12. 12.
     Construction component according to any one of claims 9 to 11, characterized in that the paper cover (1) has been printed by means of a digital printing process, especially an inkjet printing procedure, and because as printing ink it has been preferably used ink containing solvents and / or ink with water.
  13. 13.
     Process for manufacturing a printed flat building component (5), according to any one of claims 9 to 12, applying a printed paper cover (1) on a base (4) of the building component (5), according to some of the preceding claims 1 to 8, causing the base body (4) to be directly covered with the paper cover (1) in a rapid intermittent pressing process.
  14. 14.
     Process for manufacturing a printable flat building component according to any one of claims 9 to 12, applying a non-printed paper cover (1) on a base (4) of the building component (5), according to any of the Claims 1 to 8 above, causing the paper cover (1) to be first lined on the constructive component (5), then printed and finally varnished or otherwise coated.
ES09707694T 2008-02-07 2009-01-27 Paper cover for manufacturing a flat, printed or printable construction component Active ES2404075T3 (en)

Priority Applications (3)

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DE102008008292 2008-02-07
DE102008008292A DE102008008292A1 (en) 2008-02-07 2008-02-07 Paper layer for producing a flat, printed or printable component
PCT/EP2009/000488 WO2009097986A1 (en) 2008-02-07 2009-01-27 Paper layer for producing a planar printed or printable component

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DE (1) DE102008008292A1 (en)
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WO (1) WO2009097986A1 (en)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010003437B4 (en) * 2010-03-30 2012-02-09 Pfleiderer Holzwerkstoffe Gmbh Composite material and process for its production
RU2608416C2 (en) 2011-08-26 2017-01-18 Сералок Инновейшн Аб Method of making multilayer article and floor panel
NL2007494C2 (en) 2011-09-28 2013-04-02 Trespa Int Bv Method for manufacturing a decorative film and a decor panel
US10369837B2 (en) 2012-04-30 2019-08-06 Valinge Innovation Ab Method for forming a decorative design on an element of a wood-based material
DE102012103824B4 (en) * 2012-05-02 2015-12-03 Vits Technology Gmbh Process for coating a paper web
WO2014044682A1 (en) 2012-09-19 2014-03-27 Saudi Basic Industries Corporation Process for the preparation of a composition comprising heterophasic propylene copolymer and talc
EP2770105A1 (en) 2013-02-20 2014-08-27 Schoeller Technocell GmbH & Co. KG Substrate paper for decorative coating materials
DE102013007602A1 (en) * 2013-05-03 2014-11-06 Schattdecor Ag Process for producing a printable single-layer or multilayer material web and a material web produced thereon and an associated system for producing such a material web
DE102013010448A1 (en) * 2013-06-21 2014-12-24 Ed. Heckewerth Nachf. GmbH & Co. KG Method for producing a decorative plate printed with images or graphic patterns
EP2829416A1 (en) * 2013-07-24 2015-01-28 Surface Technologies GmbH & Co. KG Method for producing a directly printed decorative panel without balancing layer
EP2865531B1 (en) 2013-10-22 2018-08-29 Agfa Nv Inkjet printing methods for manufacturing of decorative surfaces
EP2865527B1 (en) 2013-10-22 2018-02-21 Agfa Nv Manufacturing of decorative surfaces by inkjet
EP2979887B1 (en) 2013-10-22 2019-12-11 Agfa Nv Manufacturing of decorative surfaces by inkjet
KR20160077099A (en) 2013-10-23 2016-07-01 세라록 이노베이션 에이비 Method of forming a decorative wear resistant layer
EP2894044B1 (en) 2014-01-10 2017-12-13 Agfa Graphics Nv Manufacturing of decorative laminates by inkjet
CN106414100A (en) 2014-01-24 2017-02-15 塞拉洛克创新股份有限公司 Digital print with water-based ink on panel surfaces
US9605168B2 (en) 2014-01-31 2017-03-28 Ceraloc Innovation Ab Digital print with water-based ink
EP2905376B1 (en) 2014-02-06 2018-09-19 Agfa Nv Manufacturing of Decorative Laminates by Inkjet
PL2927003T3 (en) * 2014-04-02 2016-08-31 Flooring Technologies Ltd Wood material board production assembly and method for manufacturing a wood material board
ES2606205T3 (en) 2014-07-29 2017-03-23 Flooring Technologies Ltd. Procedure for manufacturing an impregnated product, impregnated product and procedure for manufacturing a laminate from the impregnated product
EP3000853A1 (en) 2014-09-29 2016-03-30 Agfa-Gevaert Etch-resistant inkjet inks for manufacturing conductive patterns
EP3034572B1 (en) 2014-12-16 2018-05-30 Agfa Nv Aqueous inkjet inks
CN104559876B (en) * 2014-12-19 2017-03-08 宜昌山山林业有限责任公司 A kind of radioprotective, the composite caking agent of flame-retardant board production, preparation method and applications
EP3138691A1 (en) 2015-09-02 2017-03-08 Agfa Graphics Nv Inkjet printing device with dimpled vacuum belt
EP3199360A1 (en) 2016-01-26 2017-08-02 Unilin, BVBA Method for manufacturing paper printable with inkjet for use as a decor paper
DE102016215792A1 (en) 2016-08-23 2018-03-01 Koenig & Bauer Ag Machine arrangement for the sequential processing of a plurality of arcuate substrates each having a front side and a rear side
EP3415337A1 (en) 2017-06-14 2018-12-19 Unilin, BVBA Method for manufacturing inkjet printable paper or foil for use as a decor paper or foil
EP3447098A1 (en) 2017-08-22 2019-02-27 Agfa Nv Aqueous inkjet ink sets and inkjet printing methods
WO2019072733A1 (en) 2017-10-11 2019-04-18 Agfa Nv Inkjet printing methods for manufacturing decorative laminate panels
EP3521048A1 (en) 2018-01-31 2019-08-07 Agfa Nv Inkjet printing methods for decorative laminate panels
EP3521055A1 (en) 2018-01-31 2019-08-07 Agfa Nv Methods for manufacturing decorative laminate panels

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57501950A (en) 1980-12-12 1982-11-04
DE19604693A1 (en) * 1996-02-09 1997-11-20 Schoeller Felix Jun Foto Coated ink jet printing medium giving high colour density and little ink bleed
DE19715268A1 (en) 1997-04-12 1998-10-15 Kaemmerer Gmbh Laminating sheet, e.g. for chipboard laminates
DE19916546C2 (en) 1999-04-13 2001-05-03 Technocell Dekor Gmbh & Co Kg Ink-receiving layer
DE102005036541B9 (en) 2005-08-03 2010-02-11 Bauer, Jörg R. Process for producing a paper surface, paper web and article coated therewith in particular by means of an inkjet printing process

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PL2274485T3 (en) 2013-06-28
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EP2274485A1 (en) 2011-01-19
WO2009097986A1 (en) 2009-08-13

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