KR101064427B1 - Wood flooring having mosaic printing layer - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flooring material having a mosaic printing layer, and a flooring material having a high interior quality by printing UV-curable ink with a digital printer in order to obtain a mosaic-like point pattern on the flooring material having natural veneer. to provide.

Mosaic flooring

Description

Wood flooring having mosaic printing layer

TECHNICAL FIELD This invention relates to a flooring material. Specifically, It is related with the flooring material which has a mosaic printing layer.

The existing method of manufacturing a mosaic flooring material is a method of processing a veneer with a laser in accordance with a design and attaching each to each other to bond the substrate to the substrate.

1 is a cross-sectional view of a conventional mosaic flooring material, which is composed of a UV coating layer 10, a veneer layer 20, and a base layer 30 from above, and the UV coating layer 10 is a top coat layer 11 from above. The middle layer 12 and the lower layer 13, the veneer layer 20 is a plurality of veneer, such as the first veneer 21, the second veneer 22 is joined to form a mosaic, the base layer 30 ) Is composed of plywood, high density fiberboard (HDF) and the like.

In the case of such a conventional mosaic flooring material, the use of natural veneer has a limited color and can be expressed in the pattern, the productivity is reduced due to the process of joining the laser cutting and cut pieces, and when using thick veneer There is a high possibility that a defect such as a fire will occur.

Korean Patent Publication No. 2006-16301, comprising: setting a mosaic pattern using a scan and graphic program in a computer; Attaching a white paper layer to the PVC floor to be printed, and then first coating the transparent coating solution; Printing a mosaic pattern set on a transparent coating liquid with a digital printer using an ink provided with a sublimation dye; And a method of manufacturing a mosaic flooring material characterized in that the step of coating the urethane resin and the like on the transparent coating layer on which the mosaic pattern is printed and then drying it to diffuse the ink, but this patent In order to improve the mosaic pattern workability, it is different from the present invention for the purpose of improving the productivity, not the workability of the floor covering material.

Korean Utility Model Publication No. 2007-1130 is based on a high density MDF panel; A gravure printing layer laminated on top of the MDF panel; On the surface of the MDF panel and the gravure printing layer, the UV floor covering layer and the reinforcement floor including the UV calender layer are disclosed. Also in this invention, it differs.

Korean Patent Publication No. 2006-4828 discloses an inkjet printer with one selected from the group consisting of a wooden floor board cut to the floor size and shape, and a urethane acrylate oligomer and an epoxy acrylate oligomer on the upper surface of the floor board. A floorboard is disclosed which comprises a UV printing layer printed on a pattern by using the printed material. However, the floorboard is not a mosaic floor and is different from the present invention in detail.

An object of the present invention is to provide a mosaic flooring material that can overcome the design limitations of existing mosaic flooring material, increase productivity and reduce defects in use.

In order to achieve the above object, the present invention provides a floor covering comprising a mosaic printing layer in a floor covering composed of a UV coating layer, a veneer layer, and a substrate layer from above.

In the present invention, the UV coating layer is preferably composed of a top coat layer, a mosaic print layer, a middle coat layer and a bottom coat layer from above.

In the present invention, the mosaic printing layer is implemented with a UV-curable ink, it is preferable to have a mosaic pattern using a digital printer (Digital printer).

In the present invention, an isocyanate-modified urethane acrylate oligomer may be applied to the top coat layer to impart excellent fouling resistance.

In the present invention, there is no limit to the color and shape of the design to be implemented because the printing method using a digital printer, it is possible to improve the productivity by eliminating the complicated manufacturing process of the existing mosaic flooring material, and there is no pattern wood joints, such as burst You can avoid using it.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

2 is a cross-sectional view of the mosaic flooring material according to the present invention, which is composed of a UV coating layer 40, a veneer layer 50, and a base layer 60 from above.

The UV coating layer 40 is composed of a top coat layer 41, a mosaic print layer 42, a middle coat layer 43, and a bottom coat layer 44 from above.

The UV coating layer 40 is a surface treatment layer cured by a UV curing method, each layer of the UV coating layer 40 is composed of oligomers, monomers, photoinitiators, additives and the like.

As an oligomer, an isocyanate modified urethane acrylate oligomer, a silicone modified urethane acrylate oligomer, a urethane acrylate oligomer, an unsaturated polyester acrylate oligomer, etc. can be used.

Examples of the monomer include monofunctional monomers such as HPA (Hydroxy Propyl Acrylate) and SM (Styrene monomer); Bifunctional monomers such as DiPropylene Glycol DiAcrylate (DPGDA), 9-Ethylene Glycol DiAcrylate (9-EGDA), and HexaneDiol DiAcrylate (HDDA); Trifunctional monomers such as Glyceryl Propoxylated TriAcrylate (GPTA) and TriMethylol Propane TriAcrylate (TMPTA); Hexafunctional monomers, such as DPHA (DiPentaerylthritol HexaAcrylate), etc. can be used.

Acetophenone etc. can be used as a photoinitiator.

As the additive, reactive silicone, antisettling agent, silicone, antifoaming agent and the like can be used.

The top layer 41 serves to protect the mosaic print layer 42.

In particular, by applying a coating composition containing an isocyanate-modified urethane acrylate oligomer to the top coat layer 41 can provide excellent stain resistance.

Specifically, the top coat layer 41 coating composition is 20 to 60% by weight of an oligomer comprising an isocyanate-modified urethane acrylate oligomer; 30 to 70% by weight of monomers such as bifunctional monomers and trifunctional monomers; 1 to 10 wt% of photoinitiators such as acetophenone; 0.1 to 5% by weight of an additive such as reactive silicone.

The mosaic printing layer 42 is made of UV-curable ink, and has a mosaic pattern of various colors and designs using a digital printer.

The veneer layer 50 is composed of veneer, and is composed of a single layer of veneer without joining the veneers.

The base material layer 60 is comprised from wood-based materials, such as a plywood and a high density fiber board (HDF).

In the mosaic flooring of the present invention, after laminating the base layer 60 and the veneer layer 50, the coating is performed with UV, consisting of a coat, a medium and a top, but after coating the middle layer 43, the UV curable ink is applied. It manufactures by printing with a digital printer, forming the mosaic printing layer 42, and finishing it with the top coat layer 41 on it.

Specific UV coating method is as follows.

First, the surface of the veneer layer 50 is polished using a sanding machine and sanding papers (# 180 to 220) in a holding process.

Next, the UV wood sealer is coated by a roll coating method once or twice by the undercoating process.

Next, the UV sanding sealer is coated by a roll coating method 1-2 times to form the undercoat layer 44.

After the polishing process again, polishing is carried out with sanding paper (# 180 to 220).

Next, the intermediate layer 43 is formed by coating the UV intermediate coating with a curtain coater (Curtain Coater) once or twice in the intermediate process.

After the polishing process again, polishing is carried out using a sanding paper of # 320 to 600.

Next, the UV printing ink is printed by a digital printer by a mosaic printing process to form a mosaic printing layer 42.

Lastly, the top coat coating, in which the stain resistance is added, is coated with a curtain coater in the top coat process to form the top coat layer 41.

Figure 3 is a photograph of a conventional mosaic flooring material, Figures 4 and 5 are photographs of the mosaic flooring material according to the present invention, the mosaic flooring material according to the invention is printed in a digital printer much more colors than conventional mosaic flooring material And it can be seen that the design is implemented.

1 is a cross-sectional view of a conventional mosaic floor.

2 is a cross-sectional view of the mosaic flooring material according to the present invention.

3 is a photograph of a conventional mosaic floor covering.

4 and 5 are photographs of the mosaic floorboard material according to the present invention.

<Description of the symbols for the main parts of the drawings>

10, 40: UV coating layer

11, 41: top layer

12, 43: middle class

13, 44: sub-floor

20, 50: veneer

21, 22: veneer

30, 60: base material layer

42: mosaic printing layer

Claims (5)

In the flooring material which consists of a UV coating layer, a veneer layer, and a base material layer from the top, The floor coating material, characterized in that the UV coating layer is composed of a top coat layer, a mosaic print layer, a middle coat layer and a bottom coat layer from above. delete The flooring material of claim 1, wherein the mosaic printing layer is formed of UV-curable ink. The floor covering according to claim 1, wherein the mosaic printing layer has a mosaic pattern using a digital printer. The flooring material according to claim 1, wherein the top coat layer comprises an isocyanate-modified urethane acrylate oligomer.

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