JP2012031686A - Flooring material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an easily manufacturable flooring material.SOLUTION: In a flooring material 1 having a decorative face material 2 integrated with a front side 6 of plywood 4 in the state of being stuck thereon, irregularity suppressing members 3 and 5 are provided between the plywood 4 and the decorative face material 2 and on a back side 7 of the plywood 4, respectively. The plywood 4 is a plate member in which a plurality of veneers are stacked in such a manner that fiber directions are set alternate. The plywood 4 has irregularities on the front and back sides 6 and 7. For the veneers of the plywood 4, low-quality wood and the like having many irregularities on a front side can also be used. The irregularity suppressing members 3 and 5 are members for suppressing the irregularities on the front and back sides 6 and 7 of the plywood 4, respectively.

Description

  The present invention relates to a flooring, and more particularly to a flooring formed by integrating a decorative face material on the surface of a plywood. The flooring of the present invention can be easily manufactured.

  A so-called composite flooring in which a decorative material is attached to a base material such as plywood is used as a flooring material for a house. Hardwood and conifers are used as the material for plywood. For the purpose of forest protection, fiber boards such as MDF (medium density fiberboard) are also used. The fiber board is used by processing low quality wood, etc., which has many irregularities on the material surface and cannot be used as a flooring as it is. More specifically, the fiberboard is manufactured by pulverizing waste wood and low-quality wood into powder, cooking wood fiber taken out and mixing it with an adhesive, and then hot pressing it into a plate.

  The fiber board is made by pulverizing raw material wood into a powder, and has the disadvantages that it is vulnerable to water and moisture and easily warps. Patent Document 1 discloses a configuration in which moisture-proof processing is performed on a floor material using a fiber board. In the flooring described in Patent Document 1, warping that occurs in the flooring is prevented by attaching a moisture-proof sheet to the back side of the substrate made of a plurality of wood fiber layers.

JP-A-6-280376

  However, floor materials using fiberboards manufactured through complicated processes are expensive to manufacture and have a limit on cost reduction. Moreover, the complicated process itself is complicated and time-consuming.

  Then, this invention aims at provision of the floor material which can be manufactured easily.

  Invention of Claim 1 for solving the said subject is the flooring formed by sticking and integrating a decorative face material on the surface of the plywood, and between the plywood and the decorative face material and on the back surface of the plywood. It is a flooring material provided with an unevenness suppressing material.

  The unevenness suppressing material can bring the surface of a material with many unevenness close to smoothness. That is, even when low quality wood or the like that cannot be used as a flooring as it is is used as a plywood, it is possible to suppress surface unevenness by applying the unevenness suppressing material. That is, a material having many surface irregularities such as low quality wood can be used as a plywood without going through steps such as crushing, cooking, and hot pressing.

  According to the flooring of the present invention, it can be easily manufactured.

  The invention according to claim 2 is the flooring according to claim 1, wherein the unevenness suppressing material is a thermoplastic resin sheet layer whose front and back surfaces are covered with a paper sheet layer.

  The paper sheet layer is excellent in unevenness suppression and has high hygroscopicity. That is, it is possible to make the unevenness close to smooth and prevent the plywood from absorbing moisture.

  On the other hand, the thermoplastic resin sheet layer is excellent in waterproofness. That is, it is possible to prevent moisture and the like from penetrating the plywood.

  According to the flooring of the present invention, the flooring can be easily manufactured and the warping of the flooring caused by the absorption of moisture or moisture can be prevented.

  The flooring according to claim 1 can be easily manufactured.

  Moreover, according to the flooring material of Claim 2, it can manufacture easily and can prevent the curvature of the flooring material which arises by permeation of moisture absorption or moisture.

It is sectional drawing which shows the laminated structure of the flooring which concerns on 1st Embodiment of this invention. It is sectional drawing which shows the laminated structure of the flooring which concerns on 2nd Embodiment of this invention.

  Below, embodiment of the flooring of this invention is described in detail, referring drawings. In addition, the following description is for facilitating the understanding of the embodiment, and the present invention should not be understood to be limited thereby.

  As shown in FIG. 1, the flooring 1 according to the first embodiment includes a decorative surface material 2, an unevenness suppressing material 3, a plywood 4, and an unevenness suppressing material 5, which are stacked in this order. The decorative surface material 2, the unevenness suppressing material 3, the plywood 4, and the unevenness suppressing material 5 are pasted with a resin (not shown). In the cross-sectional view of FIG. 1, hatching is omitted for easy understanding of the structure of the flooring 1.

  The decorative face material 2 is a film-like decorative sheet. The decorative face material 2 is preferably made of a vinyl chloride resin or the like.

  The plywood 4 is a plate member in which a plurality of single plates are laminated so that the fiber directions are alternated. The plywood 4 has irregularities on the front surface 6 and the back surface 7. The plywood 4 may be made of low-quality wood or the like having many surface irregularities as a single plate.

  The unevenness suppressing materials 3 and 5 are members for suppressing unevenness on the front surface 6 and the back surface 7 of the plywood 4, respectively. The unevenness suppressing materials 3 and 5 have sticking surfaces 8 and 9 and smooth surfaces 10 and 11, respectively.

  The affixing surfaces 8 and 9 are surfaces affixed to the plywood 4. The sticking surfaces 8 and 9 are deformed along the uneven shape of the front surface 6 and the back surface 7 respectively. In other words, the uneven shape of the front surface 6 and the back surface 7 is absorbed by the pasting surfaces 8 and 9.

  The smooth surfaces 10 and 11 are on surfaces opposite to the sticking surfaces 8 and 9, respectively. The smooth surfaces 10 and 11 are both smooth. The decorative face material 2 laminated on the smooth surface 10 is also smooth.

  That is, the unevenness suppressing materials 3 and 5 are members that can maintain smoothness without being affected by the sticking surfaces 8 and 9 even when the sticking surfaces 8 and 9 are deformed. . It is preferable that the unevenness suppressing materials 3 and 5 are formed of a member whose one surface can be deformed and whose other surface can maintain smoothness.

  As described above, the unevenness suppressing materials 3 and 5 can make the plywood 4 having unevenness on the front surface 6 and the back surface 7 closer to smoothness. That is, even when low quality wood or the like that cannot be used as a flooring as it is is used as the plywood 4, the unevenness on the front surface 6 and the back surface 7 can be suppressed by applying the unevenness suppressing materials 3 and 5. That is, it is possible to use a material having many surface irregularities such as low quality wood as the plywood 4 without going through steps such as pulverization, digestion, and hot pressing.

  As shown in FIG. 2, the flooring 21 according to the second embodiment includes a decorative surface material 22, an unevenness suppressing material 23, a plywood 24, and an unevenness suppressing material 25, which are stacked in this order. The decorative surface material 22, the unevenness suppressing material 23, the plywood 24, and the unevenness suppressing material 25 are pasted with a resin (not shown). In the cross-sectional view of FIG. 2, hatching is omitted for easy understanding of the structure of the flooring 1.

  The decorative face material 22 is a film-like decorative sheet similar to the decorative face material 2.

  The plywood 24 is a plate member similar to the plywood 2. The plywood 24 has irregularities on the front surface 26 and the back surface 27.

  The unevenness suppressing material 23 has a paper sheet layer 41, a thermoplastic resin sheet layer 42, and a paper sheet layer 43, which are laminated in this order. That is, the unevenness suppressing material 23 is a thermoplastic resin sheet layer 42 whose front and back surfaces are covered with the paper sheet layers 41 and 43.

  In addition, the paper sheet layer 41, the thermoplastic resin sheet layer 42, and the paper sheet layer 43 are bonded with a resin (not shown).

  On the other hand, the unevenness suppressing material 25 has a paper sheet layer 44, a thermoplastic resin sheet layer 45, and a paper sheet layer 46, which are laminated in this order. That is, the unevenness suppressing material 25 is a thermoplastic resin sheet layer 45 whose front and back surfaces are covered with the paper sheet layers 44 and 46.

  In addition, the paper sheet layer 44, the thermoplastic resin sheet layer 45, and the paper sheet layer 46 are bonded with a resin (not shown).

  The paper sheet layers 41, 43, 44, and 46 are preferably made of a paper material that is excellent in suppressing unevenness and has high hygroscopicity.

  It is preferable that the thermoplastic resin sheet layers 42 and 45 are made of a synthetic resin or the like excellent in waterproofness.

  The unevenness suppressing material 23 is a member for suppressing unevenness that the surface 26 of the plywood 24 has. The unevenness suppressing material 23 has a sticking surface 28 and a smooth surface 30. The sticking surface 28 is located on the bottom surface side of the paper sheet layer 43, and the smooth surface 30 is located on the top surface side of the paper sheet layer 41.

  On the other hand, the unevenness suppressing material 25 is a member for suppressing unevenness on the back surface 27 of the plywood 24. The unevenness suppressing material 25 has a sticking surface 29 and a smooth surface 31. The sticking surface 29 is located on the top side of the paper sheet layer 44, and the smooth surface 31 is located on the bottom side of the paper sheet layer 46.

  The attachment surfaces 28 and 29 are surfaces attached to the plywood 24. The sticking surfaces 28 and 29 are deformed along the uneven shape of the front surface 26 and the back surface 27, respectively. In other words, the uneven shape of the front surface 26 and the back surface 27 is absorbed by the pasting surfaces 28 and 29.

  The smooth surfaces 30 and 31 are on the surfaces opposite to the pasting surfaces 28 and 29, respectively. The smooth surfaces 30 and 31 are both smooth. The decorative face material 22 laminated on the smooth surface 30 is also smooth.

  That is, the unevenness suppressing materials 23 and 25 are members that can maintain smoothness without being affected by the sticking surfaces 28 and 29 even when the sticking surfaces 28 and 29 are deformed. . The concave / convex suppressing members 23 and 25 are composed of deformable paper sheet layers 43 and 44 on one surface, and the paper sheet layers 41 and 46 capable of maintaining smoothness on the other surface.

  Both front and back surfaces of the plywood 24 are sandwiched between the unevenness suppressing material 23 and the unevenness suppressing material 25.

  The unevenness suppressing material 23 is sandwiched between paper sheet layers 41 and 43 having an excellent hygroscopic property on both sides of a thermoplastic resin sheet 42 having an excellent waterproof property. That is, the unevenness suppressing material 23 is a material having both hygroscopicity and waterproofness.

  On the other hand, the unevenness suppressing material 25 is the same as the unevenness suppressing material 23, and both front and back surfaces of the thermoplastic resin sheet 45 excellent in waterproofness are sandwiched between paper sheet layers 44 and 46 excellent in moisture absorption. That is, the unevenness suppressing material 25 is a material having both hygroscopicity and waterproofness.

  As described above, the paper sheet layers 43 and 44 are excellent in suppressing unevenness. The paper sheet layers 41, 43, 44, and 46 are highly hygroscopic. That is, it is possible to make the unevenness of the front surface 26 and the back surface 27 of the plywood 24 smooth and to prevent the plywood 24 from absorbing moisture.

  On the other hand, the thermoplastic resin sheets 42 and 45 are excellent in waterproofness. That is, it is possible to prevent moisture and the like from penetrating the plywood 24.

  As described above, the flooring 1 of the present invention can be easily manufactured.

  Moreover, according to the flooring 21 of the present invention, the flooring 21 can be easily manufactured, and warping of the flooring 21 caused by moisture absorption or moisture penetration can be prevented.

DESCRIPTION OF SYMBOLS 1 Floor material 2 Make-up surface material 3,5 Concavity and convexity suppression material 4 Plywood 6 Front surface 7 Back surface 41, 43, 44, 46 Paper sheet layer 42, 45 Thermoplastic resin sheet layer

Claims (2)

  A flooring material in which a decorative surface material is bonded and integrated on the surface of a plywood, wherein a concave / convex suppressing material is provided between the plywood and the decorative surface material and on the back surface of the plywood.   The flooring material according to claim 1, wherein the unevenness suppressing material is a thermoplastic resin sheet layer whose front and back surfaces are covered with a paper sheet layer.

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