Printing paper roll with decorative images printed printing paper

Abstract

A roll of printed paper (1) with printed printing paper (2) for use in planar components for floor, wall, ceiling or furniture applications, wherein a predetermined first decorative image is provided on a paper section (3, 4, 5) of the printing paper (2) with a predetermined length of less than 5 m, and The paper section following the paper section (3, 4, 5) has a different, further decorative image than the decorative image of the preceding paper section, wherein the first decorative image and the other decorative image contain different decorations, characterized by that the first and the other decorative images contain different wood grain designs, both of which were applied using a digital printing process with a digital printing device, that the printing paper (2) has an ink-receiving layer on the printing side, that each decorative image has a plurality of different image sections (ao), and that each image section (ao) has the shape of an elongated rectangle.

Description

[0001] The invention relates to a printing paper roll according to the preamble of claim 1 (DE 299 08 649 U1).

[0002] Printing paper is typically printed from rolls using rotary or gravure printing. The printing cylinders used in this process display the design to be printed as a negative image. Rotary printing is particularly suitable when large quantities of paper with a specific design are required. However, a disadvantage is that rotary printing with predefined printing cylinders can only print one specific design. If a different design is needed, the printing unit must be reconfigured with different printing cylinders. Particular problems arise when certain designs are only needed in very small quantities. Firstly, constantly reconfiguring the printing unit with different printing cylinders is costly in such cases. Secondly, a large number of printing cylinders with different designs are required, which is problematic because the cost of printing cylinders is relatively high.

[0003] DE 10 2006 057 961 A1 discloses a method and a device for producing a sequence of individual samples from a master sample, wherein the individual samples differ from the master sample in such a way that they remain generic samples. EP 0 092 593 A1 discloses a method for producing paper webs in which the paper is impregnated with melamine resin. DE 600 08 610 T2 discloses a double-sided printable paper with an ink-receiving layer.

[0004] The object of the present invention is to provide a printing paper roll of the type mentioned at the outset, with which a cost-effective production of planar components is possible.

[0005] The aforementioned problem is solved by the features of claim 1.

[0006] The invention is based on the fundamental idea of ​​using a digital printing process instead of a rotary printing process for the present application.

[0007] To draw on this application, a digital printing device allows for the simple and cost-effective creation of a wide variety of decors and decorative images using computer-aided design. The print quality of a digital printing process is comparable to that of rotary printing. A particular advantage is that, after printing a section of paper with a predefined decorative image, it is easily possible to print a different decorative image on the subsequent section of paper without having to reconfigure the printing device, as is necessary with rotary printing in conjunction with additional printing rollers. The present invention is particularly suitable for printing decors on paper intended for small production runs of flat components for floor, wall, ceiling, or furniture applications.Especially in the case of decorations where a wood grain is provided, the invention offers significant advantages, since the invention makes it possible to provide different grain decorations on each section of paper.

[0008] While it is known in practice that digital printing processes can be applied to individual sheets of paper for use in flat components such as panels, and that the components themselves can be printed, printing directly from the roll of paper has not yet been done. Up to now, the relevant sheets have been printed individually. The crucial difference, however, lies in the variability of the decorative images on the individual sections of the paper web.

[0009] As with rotary printing, the present invention involves a decorative image on a paper section comprising a plurality of different image sections. However, unlike rotary printing, the image sections within the decorative image can be varied from one paper section to another. This variability can lie particularly in the dimensions of the individual image sections, the arrangement of the image sections within the decorative image, and the color scheme of the decorative image. While the dimensions of a paper section can, of course, be varied, for manufacturing reasons it is advantageous to provide all paper sections with identical dimensions. The width of a paper section, and thus also the width of a decorative image, is between 1.0 m and 3 m, while the length of a decorative image is between 0.5 m and 2 m. A typical width for the printing paper is 2.07 m, while the width of the decorative image is...The length of the respective decorative image is usually 2.0 m. A typical length of a paper section is 1.3 m.

[0010] The invention offers, in particular, the possibility that the decorative image following the decorative image has further image sections that differ from the image sections of the preceding decorative image. It is even possible for the decorative images, and especially the image sections, of all decorative images on the printing paper of a printing paper web or roll to be different. This is particularly advantageous when wood decors with corresponding grain patterns are printed. This ensures that components for floor, wall, ceiling, and furniture applications can ultimately be produced that are distinct from one another. Thus, the invention makes it possible for no two components to be identical in terms of their decor.The invention also makes it possible to produce large-area floors from components in which the grain pattern from the individual components continues not only in longitudinally arranged components but also across adjacent rows.

[0011] The invention is described in more detail below with reference to the drawing. All features described and / or shown, individually or in any combination, constitute the subject matter of the present invention, irrespective of their compilation in the claims or their cross-reference. The drawing shows: Fig. 1 a side view of a partially unrolled roll of printing paper and Fig. 2 a top view of the printing paper of the printing paper roll Fig. 1.

[0012] In Fig. Figure 1 shows a schematic representation of a roll of printing paper 1, with the beginning unwound for illustrative purposes. When fully unwound, the roll of printing paper 1 is a web of printing paper 2, which comprises numerous individual paper sections 3, 4, 5. Only the first three sections will be discussed below. Each paper section 3, 4, 5 of the printing paper 2 contains a decorative image. All of these decorative images together form the design printed on the printing paper 2.

[0013] The printing paper 2 can be ordinary resin-coated, partially resin-coated or fully resin-coated paper that has an ink-receiving layer on the printing side.

[0014] At the in Fig.In the embodiment shown in Figure 2, the decorative images of paper sections 3, 4, and 5 each have five image sections. Paper section 3 has image sections a, b, c, d, and e, while paper section 4 has image sections f, g, h, i, and j. Finally, paper section 5 has image sections k, l, m, n, and o. It is understood that the subsequent paper sections on the printing paper 2 have corresponding image sections. In this case, each image section has the shape of an elongated rectangle. In the illustrated embodiment, the length L of each paper section is 1.3 m, while the width B of a paper section is 0.4 m. Thus, the total width of the decorative image of paper section 3 is fixed at 2 m. However, it is understood that both the length L and the width B can be variable.Therefore, shorter or longer, as well as wider or narrower, image sections can be included within a single sheet of paper. Furthermore, the longitudinal orientation of the individual image sections does not have to run lengthwise along the printing paper web. A transverse orientation is perfectly acceptable. The individual image sections can feature any desired design.

[0015] What is not shown is that there are areas of paper along the long edges that are ultimately not printed with the design. A border typically remains where the design is not intended, but this is not depicted here.

[0016] In the printed paper 2 shown in the figures, the decorative image of paper section 3 differs from the decorative image of the immediately adjacent paper section 4. The decorative image of paper section 4 also differs from the decorative image of the adjacent paper section 5. Furthermore, in the illustrated embodiment, the decorative image of paper section 3 also differs from the decorative image of paper section 5. In addition, in the illustrated embodiment, all image sections a to o of the individual decorative images of paper sections 3, 4, and 5 differ from one another. This difference in the decorative images and image sections can be provided for any successive paper sections. Ultimately, all decorative images and all image sections of all decorative images on the roll of printed paper can even be different.

[0017] The printing process for the printing paper 2 is carried out as follows: the printing paper 2 is fed from a blank paper roll to a digital printing device. This could, for example, be an inkjet printer, which prints the design. Before printing, the printing paper 2 is fed to a paper discharge unit, where the subsequently printed paper is wound into a printed paper roll. After the printing device is set up, printing begins, and the individual paper sections 3, 4, and 5 are printed. A corresponding computer control system ensures that the design images of adjacent paper sections 3, 4, and 5, as well as the individual image sections a to o of paper sections 3, 4, and 5, are different.It goes without saying that, with appropriate settings, it is also possible, for example, to print the decorative image of paper section 3 multiple times in succession, or to print the decorative image of paper section 5 following the decorative image of paper section 3. Ultimately, the digital printing process, using appropriate computer-aided control, offers all the possibilities of printing the individual decorative images in any desired order.

[0018] Furthermore, it is also possible that, for example, the image sections of decorative images 3 and 5 are designed in such a way that, when image section k is placed next to image section e, the decorative element of image section e transitions seamlessly into the decorative element of image section k. For example, in a grain design, the grain lines can then transition smoothly from one image section to the other. In this way, a seamless design and a uniform decorative effect can be achieved, for example, in a floor covering.

[0019] After printing, the paper is cut to create sections corresponding to the individual image areas. These sections are then pressed together with flat base materials to form flat components, which can then be used for floor, wall, or furniture applications. Reference symbol list: 1 roll of printing paper 2 sheets of printing paper 3 paper sections 4 paper sections 5 paper sections ao image sections B Width Length L

Claims

[1] A roll of printed printing paper (1) for use in planar components for floor, wall, ceiling or furniture applications, wherein a predetermined first decorative image is provided on a paper section (3, 4, 5) of the printing paper (2) with a predetermined length of less than 5 m, and The paper section following the paper section (3, 4, 5) has a different, further decorative image than the decorative image of the preceding paper section, wherein the first decorative image and the other decorative image contain different decorations, characterized by , that the first and the other decorative images contain different wood grain designs, both of which were applied using a digital printing process with a digital printing device, that the printing paper (2) has an ink-receiving layer on the printing side, that each decorative image has a plurality of different image sections (ao), and that each image section (ao) has the shape of an elongated rectangle. [2] Printing paper roll according to claim 1, characterized by , that the printing paper (2) is resin-coated, partially resin-coated or fully resin-coated paper. [3] Printing paper roll according to claim 1, characterized by that the longitudinal alignment of the individual image sections does not run in the longitudinal direction of the printing paper web. [4] Printing paper roll according to any one of the preceding claims, characterized by , that the width (B) of a decorative image is between 1.0 m and 3 m, while the length (L) of a decorative image is between 0.5 m and 2 m. [5] Printing paper roll according to any one of the preceding claims, characterized by , that the width (B) of the printing paper (2) is 2.07 m. [6] Printing paper roll according to any one of the preceding claims, characterized by, that in the area of ​​the longitudinal edges of the printing paper (2) there are still paper areas which are ultimately not printed with the decoration.

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