JP2008100436A - Floating flooring material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a floating flooring material 1a which is improved in the resistance to scuffing, the resistance to dent and the resistance to crack of a needle-leaved tree sliced veneer 30 and which is free from the occurrence of the sense of incongruity for appearance and also is friendly to the environment, by the preparation of the floating flooring material 1a by using such a woody base material 10 with a soft surface layer part as a plywood of South Sea wood and a needle-leaved tree plywood as a base material and laminating the needle-leaved tree sliced veneer 30 thereon. <P>SOLUTION: The floating flooring material 1a is equipped with the woody base material 10 whose surface layer part is a soft plywood base material such as the South Sea plywood and the needle-leaved plywood, a woody fiber board 20 with a surface layer base rock layer 21 having a high specific gravity smooth surface laminated on the surface of the woody base material 10, and a needle-leaved tree sliced veneer 30 on which a floating processing is applied laminated on the surface of the woody fiber board 20. The woody fiber board 20 is preferably a high specific gravity woody fiber board half-cut in the thickness direction, and is laminated by making a woody fiber body part 22 on the woody base material 10 side and making the surface layer base rock layer 21 on the needle-leaved sliced veneer 30 side. When the floating processing is performed, brushing grinding is performed so that the whole of or at least one part of the surface layer base rock layer 21 is left. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a flooring material, and more particularly to a floating flooring material in which a surface decorative veneer is floated.

  By stacking, for example, a coniferous wood board on the surface of a woody base material such as plywood, and brushing the surface of the wood board with a brush, and grinding the early wood part leaving the late wood part, Floating flooring materials that have irregularities formed on the surface are known (see Patent Document 1). By applying such a floating process to the surface of the wood board, it is possible to obtain a flooring material having a three-dimensional effect utilizing the natural grain.

  If brushing is not performed with great care when applying the float board to the veneer board, the thickness of the early wood part will be too thin or completely lost, and the wood base material such as plywood will rise. It happens to be visible from. In addition, when the base material is a South Sea wood plywood or softwood plywood, the surface layer part of the base material is soft, so that the float board has a scratch resistance, dent resistance, Crack resistance may not be obtained. As a floating floor material that solves the inconvenience, Patent Document 2 discloses a floor material in which a fiber-reinforced and arbitrarily colored resin reinforced layer is disposed between a base material and a wood board (woody thin single board). Is described.

JP 2002-326210 A JP 2003-266409 A

  The floating flooring described in Patent Document 2 satisfies the scratch resistance, dent resistance, or crack resistance of the surface plate, which is the surface layer, due to the presence of the resin reinforced layer. However, since it is a resin layer, it is difficult to avoid giving it an impression different from that of a wood-based material even if it is arbitrarily colored when it is seen from above. In addition, since a different material such as a resin material is included, when the flooring is disposed of by incineration or the like, it is necessary to separate the resin reinforcing layer from the wood-based material for the purpose of reducing the environmental load.

  The present invention has been made in view of the circumstances as described above, and uses a woody base material having a soft surface layer portion as a base material, such as a southern ocean plywood or softwood plywood, and a softwood wood board is laminated thereon. The purpose of the floating flooring is to improve the scratch resistance, dent resistance and crack resistance of the softwood board, and to provide a floating flooring that does not give a strange appearance and is also environmentally friendly. .

  The floating flooring according to the present invention is a wood fiber in which a surface layer is soft and a surface layer rock layer having a smooth surface having a high specific gravity is laminated on the surface side. It is characterized by comprising a board and a coniferous wood board subjected to a floating process laminated on the surface of the wood fiber board.

  In the above-mentioned floating flooring, there is a surface layer rock layer with a smooth surface with a high specific gravity between the wood base material and the coniferous wood plank so that it is on the surface side. Even if the base material is made of a soft material such as southern plywood or softwood plywood, the early wood portion of the softwood wood board will be supported by the hard part that is the surface rock layer of the wood fiber board, Scratch resistance, dent resistance, and crack resistance of the softwood board are ensured. Also, even if the softwood wood board is floated and the early wood part becomes thinner, it is the wood fiber board that can be seen through the thin part, and it is the same wood material, which makes the viewer feel awkward Absent. Further, when the floating flooring is disposed of by incineration or the like, all the materials are the same woody material and basically do not include different materials, so that no special separation processing is required.

  In the floating flooring of the present invention, the wood fiber board is made of any known wood fiber board as long as it is made by hot-pressure molding of defibrated plant fibers in the presence of an adhesive. Can be used. Preferably, it is a high specific gravity wood fiber board (HDF, also referred to as a hard board) having a specific gravity of about 0.8 to 1.2, so that more stable scratch resistance and resistance of the softwood wood board laminated thereon can be obtained. Indentation and crack resistance are ensured.

  In the floating flooring according to the present invention, when a softwood board is laminated on the surface of the wood fiber board and brushing is performed by brushing, only a part of the early wood part of the softwood board is brushed and ground. Alternatively, all of the early material portion may be brushed. In any case, it is highly desirable that the cutting by brushing does not completely cut the surface rock layer of the wood fiber board, and at least a part thereof exists as the remaining layer. Thereby, the flaw resistance, the dent resistance, and the crack resistance of the softwood board are further ensured. Furthermore, since the soft part of the wood fiber board is covered with the surface rock layer, the spots at the time of painting do not appear.

  In the float flooring according to the present invention, preferably, the wood fiber board is a thin wood fiber board divided into two in the thickness direction, and the divided surface is laminated with the wood base material side. The wood fiberboard is laminated and integrated with the adhesive to the wood base material, but it is highly bonded by laminating the divided side of the wood fiber board divided into two in the thickness direction as the wood base material side. Sex is obtained. Also, from experience, it is sufficient that the thickness of the wood fiber board is about 0.5 mm to 1.0 mm, and if it is thicker than that, it becomes over-spec and causes high cost, but the wood fiber board divided into two in the thickness direction By using, a thin wood fiber board of about 0.5 mm to 1.0 mm can be easily obtained, so that the cost is also reduced.

  If necessary, a finish coating such as a transparent or translucent topcoat layer is applied to the surface of the floating board. Moreover, although there is no restriction | limiting in the thickness of the softwood board used, Usually, it is about 0.3 mm-1.0 mm.

  According to the present invention, even when a woody base material having a soft surface layer, such as a southern seawood plywood or a softwood plywood, is used as the base material, the floating resistance with improved scratch resistance, dent resistance and crack resistance of the softwood wood board. Build flooring can be obtained. In addition, it is possible to obtain a floating flooring material that does not cause a sense of incongruity due to spots or the like at the time of painting and is also environmentally friendly.

  Hereinafter, the present invention will be described based on embodiments with reference to the drawings. FIG. 1a is a schematic cross-sectional view of a flooring material before performing the floating process, and FIG. 1b is a schematic cross-sectional view of the flooring material after the floating process. FIG. 1c is a schematic cross-sectional view of a floating flooring material when surface finish coating is performed.

  A flooring 1 shown in FIG. 1a includes a wood base 10 having a soft surface layer, a wood fiber board 20 laminated on the surface thereof, and a softwood board 30 laminated on the surface of the wood fiber board 20. There is no restriction | limiting in particular in the wood type base material 10, The wood type base material used with the conventional flooring can be used suitably. As an example, a plywood base material having a soft surface layer, such as a southern ocean plywood or a softwood plywood, can be mentioned.

  The wood fiber board 20 is not particularly limited in type and thickness, and is arbitrary on the condition that it has a surface rock layer 21 having a smooth surface with high specific gravity. High specific gravity wood fiber board (HDF) is preferable. Although the wood fiber board 20 may be bonded and laminated on the wood base material 10 as it is, in this example, the wood fiber board 20 is divided into two in the thickness direction, and the thickness is 0.5 mm to 1.0 mm. The surface of the woody base material 10 is such that the divided surface (woody fiber main body 22 side) is the woody base material 10 side and the surface rock layer 21 side is the outside. Adhesive lamination to. For the adhesive, a known thermosetting resin is usually used.

  In this example, the softwood board 30 has a thickness of about 0.3 mm to 1.0 mm. It is bonded and laminated on the surface layer rock layer 21 of the wood fiber board 20 using an adhesive such as a conventional thermosetting resin or a modified product thereof. As shown in the drawing, the coniferous wood board 30 includes a fastwood portion 31 and a latewood portion 32.

  The surface of the softwood board 30 of the flooring 1 shown in FIG. 1a is brushed by a brush by a conventionally known method, and the surface of the softwood board 30 is subjected to a so-called floating process. Thereby, as shown in FIG. 1b, most of the early wood portion 31 is ground, leaving the late wood portion 32, and the surface of the softwood wood board 30 has irregularities. In addition, when performing a floating process, it brushes so that all or at least one part of the surface layer rock layer 21 of the wood fiber board 20 may exist as a remaining layer.

  After the float forming process, if necessary, the required surface coating film 40 is formed as a finish coating on the surface of the softwood wood board 30 to complete the float flooring 1a according to the present invention shown in FIG. 1c.

  In the floating flooring 1 a described above, a layer made of the wood fiber board 20 exists between the wood base material 10 and the softwood wood board 30, and the surface layer having a smooth surface with a high specific gravity of the wood fiber board 20. Since the coniferous board 30 is laminated on the bedrock layer 21, the coniferous board 30 after being floated is secured with sufficient scratch resistance, dent resistance, and crack resistance. Moreover, in this floating flooring 1a, the soft layer 22 of the wood fiber board 20 is covered with the surface rock layer 21, so that no coating spots are produced during the finish coating. Further, even if the early wood portion 31 of the coniferous board 30 is thinned, it is the wood fiber board 20 that can be seen through the thin portion, and since it is the same wood material, it does not give a great discomfort to the viewer. Furthermore, as described above, when the floating flooring 1a is disposed of by incineration or the like, all the materials are the same woody material and basically do not include different materials, so that no special separation processing is required. .

Fig. 1a shows a thin flooring according to the present invention together with the manufacturing process, wherein Fig. 1a is a schematic cross-sectional view of a flooring before floating processing, Fig. 1b is a schematic cross-sectional view of a flooring after floating processing, and FIG. 1c is a schematic cross-sectional view of a floating flooring when surface coating is performed.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1a ... Floating flooring by this invention, 10 ... Wood base material, 20 ... Wood fiber board, 21 ... Surface layer bedrock layer, 22 ... Wood fiber main-body part, 30 ... Wood board, 31 ... Early wood part, 32 ... Night Material part

Claims (5)

  A wood base material having a soft surface layer, a wood fiber board laminated with a surface rock layer having a smooth surface having a high specific gravity on the surface of the wood base material, and the surface of the wood fiber board Floating flooring characterized by comprising a softwood wood board that has been subjected to floating processing laminated on the floor.   The floating flooring according to claim 1, wherein the wood fiberboard is a high specific gravity wood fiberboard.   3. The floating flooring according to claim 1, wherein all of the early wood parts of the softwood board are brushed and ground, and at least a part of the surface rock layer remains in the wood fiber board. .   4. The floating flooring according to claim 3, wherein the surface of the softwood wood board that has been floated is finished.   The floating flooring material according to any one of claims 1 to 4, wherein the wooden fiberboard is a thin wood fiberboard divided into two in the thickness direction.

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