JP2010236220A - Thin tatami mat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a thin tatami mat superior in sanitary function, superior in constructibility by virtue of its thinness and lightness in weight, and resistant to a slip. <P>SOLUTION: This thin tatami mat is characterized as follows: tatami facing is superposed on one surface of a core material which is made of a wood-fiber board or a closed-cell synthetic resin foam; a cushion sheet containing a functionalization agent as an antiallergic agent, an antibacterial agent, an antiseptic agent or a mildewproofing agent is superposed on the other surface thereof; and a nonslip sheet is partially superposed on the cushion sheet. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a thin tatami mat.

  In recent years, in the housing design field, as a Japanese-Western eclectic house, a house without a step between the Western and Japanese-style rooms has been attracting attention as a barrier-free house, but when using a conventional tatami mat with a thickness of around 55 mm, In order to eliminate the step, it is necessary to lower the size of the Japanese-style room and raise the floor of the Western-style room. Therefore, various thin tatami mats having a thickness of about 7 to 25 mm that can be easily changed between a Western-style room and a Japanese-style room have been proposed.

For example, a thin tatami mat with a cushion sheet provided at least on the front side of a fiber board having a thickness of 5 to 15 mm, and a tatami mat surface fixed thereon, and the density of the fiber board is 0.35 to 0.6 g / cm ^3. A thin tatami mat and a thin tatami mat (for example, refer to Patent Document 1) having a metal foil or plastic film affixed to the front and back of the fiberboard, and a tatami floor component used for a tatami mat having a total thickness of 7 to 25 mm, The tatami floor component is a plate having a density of 0.02 to 0.5 g / cm ³ (excluding a synthetic resin foam) and a fiber reinforced resin sheet bonded and integrated with a thickness of 4 to 20 mm. is intended, and bending tatami floor construction material elastic modulus is 6000kgf / cm ² or more (e.g., see Patent Document 2.) have been proposed.

  The thin tatami mat is thin and light and easy to construct, and is widely used in the above applications. Moreover, since it is easy to carry, a thin tatami mat alone is used at a predetermined position on the floor. However, the thin tatami mats are lightweight and easily move, and there are drawbacks such as danger of slipping when a person steps on them. Reference 3) has been proposed.

  Also, since tatami mats are used for a long period of time, there is a drawback that ticks and moths settle on tatami mats and cushion sheets, so tatami mats with an antiallergen agent fixed to the cushion sheet (see, for example, Patent Document 4) are proposed. Has been. A tatami mat containing a functional agent such as an anti-allergen agent is preferable for hygiene purposes. However, when the cushion sheet is the lowermost layer, there is a drawback that it is slippery and dangerous when installed on the floor of a wooden flooring. In order to impart the anti-slip effect, the cushion sheet may be anti-slip coated as described above. However, since the cushion sheet is porous, it is difficult to uniformly coat the anti-slip agent, thus providing a suitable anti-slip effect. It was difficult. Further, when the entire surface is coated thickly, the anti-allergen agent is blocked by the coating layer, and the effect of the functional agent is not exhibited.

JP 2004-84340 A JP 11-336307 A JP 2004-162279 A JP 2005-126982 A JP 2003-81727 A

  In view of the above problems, an object of the present invention is to provide a thin tatami mat that has excellent hygiene functions, is thin and lightweight, has excellent workability, and is difficult to slip.

That is, the present invention
[1] A tatami surface is laminated on one surface of a core material made of a wood fiber board or a closed cell synthetic resin foam, a functional agent-containing cushion sheet is laminated on the other surface, and a non-slip layer is further provided on the cushion sheet Thin tatami mats, characterized by being laminated,
[2] Slip in which an anti-slip layer is formed by laminating a non-slip material layer made of a silicon-based resin, an acrylic resin, or an acrylic silicon-based resin on one surface of the base sheet, and an adhesive layer on the other surface The thin tatami mat according to the above [1], which is a stop sheet,
[3] The above-mentioned [2], wherein the anti-slip sheet is thinner than the cushion sheet, and the anti-slip sheet is embedded in the cushion sheet when a large load is applied. Thin tatami mats,
[4] The thin tatami mat according to [2] or [3], wherein the non-slip sheet has a belt shape, and a plurality of non-slip sheets are laminated substantially in parallel.
[5] The thin tatami mat according to [2] or [3], wherein the non-slip sheet has a lattice shape and is laminated on the entire surface of the cushion sheet;
[6] The thin tatami mat according to any one of [1] to [5], wherein the functionalizing agent is an anti-allergen agent, an antibacterial agent, an antiseptic or an antifungal agent.

  The structure of the thin tatami mat of the present invention is as described above, has excellent hygienic functions, is thin and lightweight, has excellent workability, and is difficult to slip.

It is sectional drawing which shows an example of the thin tatami of this invention. It is sectional drawing which shows an example of a non-slip sheet | seat. 3 is a plan view illustrating an example of a state in which a non-slip sheet is stacked on the cushion sheet in Example 1. FIG. 6 is a plan view showing a lattice-shaped anti-slip sheet produced in Example 2. FIG. It is a top view which shows the example from which the state in which the non-slip sheet | seat was laminated | stacked on the cushion sheet in Example 3 is different.

Next, the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view showing an example of a thin tatami mat according to the present invention.
In the figure, reference numeral 1 denotes a core material. A cushion sheet 31 and a tatami mat 2 are sequentially laminated on one surface of the core material 1, and a cushion sheet 3 is laminated on the other surface.

  The said core material consists of a wood fiber board or a closed-cell synthetic resin foam. Wood fiberboard is a building material made by pulping wood and other plant fibers, bonded with a binder resin, and heat-pressed, especially if it is a wood fiberboard that has been used as a thin tatami core. For example, a particle board, a plywood, an insulation fiber board (insulation board), a medium density fiber board (MDF), a hard fiber board (hard board), etc. are mentioned.

  The closed cell synthetic resin foam is not particularly limited as long as it is a closed cell synthetic resin foam that has been conventionally used as a thin tatami core. For example, synthetic resin foams such as polystyrene, polyethylene, and polypropylene are used. Is mentioned. Although the thickness of the core material 1 is not specifically limited, Generally it is 5-15 mm.

  The cushion sheets 3 and 31 impart cushioning properties to thin tatami mats, and are not particularly limited as long as they are conventionally used as thin tatami cushion sheets. For example, hemp fibers, cotton fibers, polyester fibers Non-woven fabrics, woven fabrics, mats, felts, etc .; foam sheets such as polystyrene resin foam sheets, polyethylene resin foam sheets, polypropylene resin foam sheets, urethane foam sheets, rubber foam sheets; kraft paper, paperboard, cardboard, cardboard, etc. Can be mentioned. The thickness of the cushion sheets 3 and 31 is not particularly limited, but is generally 1 to 5 mm.

  The cushion sheet 3 contains a functionalizing agent. Functional agents include antiallergens that reduce allergens, antibacterial agents, antiseptics, antifungal agents, and the like that have a function of suppressing or killing bacterial growth. Examples of the anti-allergen include aromatic hydroxy compounds, alkali metal carbonates, alum, lauryl benzene sulfonate, lauryl sulfate, polyoxyethylene lauryl ether sulfate, phosphate, zinc sulfate, lead acetate, etc. (For example, refer to Patent Document 5). The cushion sheet 31 may also contain a functionalizing agent.

The method for containing the functionalizing agent in the cushion sheet 3 is not particularly limited. For example, a method in which a powdery functionalizing agent is sprayed on the cushioning sheet, the functionalizing agent is water, alcohols (methyl alcohol, ethyl alcohol, propyl alcohol). Etc.), a method of evaporating the solvent after spraying a solution dissolved in a solvent such as hydrocarbons (toluene, xylene, methylnaphthalene, etc.) on the cushion sheet. The content of the functionalizing agent may be appropriately determined depending on the type and purpose of the functionalizing agent, but is generally 0.01 to 1.0 g per 1 m ² .

  The method of laminating the core material, the cushion sheet, and the tatami surface is not particularly limited, for example, a method of adhering with an adhesive such as rubber, acrylic, urethane, silicon, ethylene-vinyl acetate copolymer, Examples thereof include a method of bonding with a polyolefin-based hot-melt adhesive such as a linear low density polyethylene resin, a method of sewing with a thread, and a method of driving with a tacker.

  A non-slip layer 4 is partially laminated on the cushion sheet 3. If the anti-slip layer 4 is laminated on the entire surface of the cushion sheet 3, the functional agent contained in the cushion sheet 3 is not diffused to the surface and cannot provide a functional effect. 3 is partially laminated. When the area of the anti-slip layer 4 with respect to the cushion sheet 3 is reduced, the anti-slip effect is reduced. When the area is increased, the functionalizing agent is not diffused on the surface and the functional effect is reduced.

  The method of laminating the anti-slip layer 4 is not particularly limited, and examples thereof include a method of applying and drying a solution of an anti-slip material, but many cushion sheets are porous and are uniformly formed on the surface of the cushion sheet. Since it is difficult, an anti-slip sheet in which a non-slip material layer made of a silicon-based resin, an acrylic resin or an acrylic silicon-based resin is laminated on one side of the base sheet and an adhesive layer is laminated on the other side It is preferable to laminate.

  FIG. 2 is a cross-sectional view showing an example of an anti-slip sheet. In the figure, 41 is a base sheet made of kraft paper, cloth, polyethylene, polypropylene, polyvinyl chloride, polyester, polyurethane, etc., and one surface of the base sheet 41 is adhesive such as rubber, acrylic or urethane. An adhesive layer 42 such as a hot-melt adhesive such as an agent, an ethylene-vinyl acetate copolymer, and a linear low density polyethylene is laminated.

  In addition, two semi-elliptical anti-slip material layers 43 made of silicon resin, acrylic resin, or acrylic silicon resin are laminated on one surface of the base sheet 41. The anti-slip material layer 43 may be laminated on the entire surface of the base material sheet 41 with a substantially uniform thickness. However, in order to increase the anti-slip effect, the semi-circular, pyramidal, etc. point shape and the cross-sectional shape are semi-circular. May be linear, semi-elliptical, triangular, square, etc., wavy, or latticed.

  Since the cushion sheet 3 is flexible, the anti-slip sheet 4 sinks into the cushion sheet 3 when stepped on. However, if the thickness of the anti-slip sheet 4 is greater than the thickness of the cushion sheet 3, the anti-slip material layer 43 is formed when stepped on. It will be in the state which protruded from the cushion sheet 3, and a thin tatami may float or deform | transform. Therefore, the thickness of the anti-slip sheet 4 is preferably smaller than the thickness of the cushion sheet 3, and the anti-slip sheet 4 is preferably embedded in the cushion sheet 3 when a large load is applied.

  The shape of the non-slip sheet 4 is not particularly limited, and examples thereof include a circular shape, a triangular shape, a quadrangular shape, a belt shape, and a lattice shape. The belt-like non-slip sheet is preferably laminated with a cushion sheet so that a plurality of sheets are substantially parallel. It is preferable that the lattice-shaped belt-like non-slip sheet is laminated on the entire surface of the cushion sheet.

  Next, examples of the present invention will be described, but the present invention is not limited to the examples.

Example 1
As shown in FIG. 1, a core material (830 × 830 mm) 1 made of a medium density fiber board having a thickness of 7 mm, a density of 0.48 g / cm ³ , and a bending strength of 9 N / mm ² is formed on both sides of a non-woven fabric having a thickness of 2 mm. Cushion sheets 3 and 31 to be laminated, and a tatami mat 2 having a thickness of 2 mm was laminated on the cushion sheet 31, and both ends thereof were mated to the end portions of the core material 1 and the cushion sheet 3 to obtain a thin tatami mat.

  The obtained thin tatami mat was placed on a vinyl chloride resin floor tile, a 10 kg weight was placed on the thin tatami mat, and the load was measured by pulling it horizontally at a speed of 9 m / min with a push-pull scale. However, it was 120N.

  A rubber-based adhesive is applied to one surface of a 0.05 mm thick cloth base sheet to a thickness of 0.05 mm, an adhesive layer is laminated, and a non-slip material made of a silicon-based resin is placed on the other surface at a height of 1. A non-slip sheet was obtained by laminating a plurality of strips on 5 mm ridges. The obtained anti-slip sheet is cut into a width of 3 cm, and a rubber-based adhesive layer 42 is laminated on one surface of the cloth base sheet 41 as shown in FIG. 2, and a convex anti-slip material layer 43 is formed on the other surface. A belt-like non-slip sheet 44 obtained by laminating two strips was obtained.

  As shown in FIG. 3, the rubber adhesive layer 42 of the obtained five strip-shaped anti-slip sheets 44 is placed on the obtained thin tatami cushion sheet 3 at a position 20 mm from the end and at intervals of 180 mm. To obtain a thin tatami mat of the present invention. The antislip material layer 43 was laminated so that the ridges were parallel.

  The obtained thin tatami mat of the present invention is placed on a floor tile made of vinyl chloride resin, a 10 kg weight is placed on the thin tatami mat, and it is horizontally pushed at a speed of 9 m / min in a direction perpendicular to the ridge with a push-pull scale. When the load was measured by pulling in the direction, it was 140 N or more. The contact area of the anti-slip material layer 43 to the vinyl chloride resin floor tile when a 10 kg weight was placed was about 6% of that of a thin tatami mat (the anti-slip material layer 43 was projected on the base sheet 41). The contact area with the floor tile made of vinyl chloride resin is about 65% of the area of the non-slip sheet 44.) Moreover, when the obtained thin tatami mat was placed on the floor of the wooden floor rig and stepped on with a foot, the end of the thin tatami mat did not float up wherever it was stepped.

(Example 2)
As shown in FIG. 4, the non-slip sheet obtained in Example 1 was cut into 830 × 830 mm squares and punched regularly into 18.25 × 18.25 mm squares at 16 locations, and the width of the grid A grid-like non-slip sheet 45 of 2 mm was obtained.

  The rubber-based pressure-sensitive adhesive layer 42 of the obtained grid-like non-slip sheet 45 was laminated on the thin tatami cushion sheet 3 obtained in Example 1 to obtain the thin tatami mat of the present invention. When the moving load of the thin tatami mat obtained in the same manner as in Example 1 was measured, it was 140 N or more. When the 10 kg weight was placed, the contact area of the anti-slip material layer to the vinyl chloride resin floor tile was about 15% of the thin tatami mat. Moreover, when the obtained thin tatami mat was placed on the floor of the wooden floor rig and stepped on with a foot, the end of the thin tatami mat did not float up wherever it was stepped.

Example 3
The anti-slip sheet obtained in Example 1 was cut to produce one 200 × 200 mm square anti-slip sheet 46 and four 100 × 100 mm square anti-slip sheets 47. As shown in FIG. 5, the anti-slip sheet 46 is positioned at the approximate center of the thin tatami mat, and the four anti-slip sheets 47 are positioned at each corner of the thin tatami mat. The rubber adhesive layer 42 was laminated on the cushion sheet 3 to obtain a thin tatami mat of the present invention. The anti-slip material layer was laminated so that the ridges were parallel.

  When the moving load of the thin tatami mat obtained in the same manner as in Example 1 was measured, it was 140 N or more. When the 10 kg weight was placed, the contact area of the anti-slip material layer to the vinyl chloride resin floor tile was about 12% of the thin tatami mat. Moreover, when the obtained thin tatami mat was placed on the floor of the wooden floor rig and stepped on with a foot, the end of the thin tatami mat did not float up wherever it was stepped.

  The thin tatami mat of the present invention has excellent sanitary functions, is thin and lightweight, has excellent workability, and is difficult to slip.

DESCRIPTION OF SYMBOLS 1 Core material 2 Tatami mat 3 Cushion sheet 4 Non-slip sheet 41 Base material sheet 42 Adhesive layer 43 Anti-slip material layer

Claims (6)

  A tatami mat is laminated on one side of a core material made of a wood fiber board or a closed cell synthetic resin foam, a functional agent-containing cushion sheet is laminated on the other side, and a non-slip layer is partially laminated on the cushion sheet. Thin tatami mats characterized by being.   The non-slip layer is a non-slip sheet in which a non-slip material layer made of a silicon-based resin, an acrylic resin, or an acrylic silicon-based resin is laminated on one side of the base sheet, and an adhesive layer is laminated on the other side. The thin tatami mat according to claim 1, wherein the thin tatami mat is provided.   3. The thin tatami mat according to claim 2, wherein the thickness of the non-slip sheet is smaller than that of the cushion sheet, and the anti-slip sheet is embedded in the cushion sheet when a large load is applied.   The thin tatami mat according to claim 2 or 3, wherein the non-slip sheet has a strip shape, and a plurality of anti-slip sheets are laminated substantially in parallel.   The thin tatami mat according to claim 2 or 3, wherein the non-slip sheet has a lattice shape and is laminated on the entire surface of the cushion sheet.   The thin tatami mat according to any one of claims 1 to 5, wherein the functionalizing agent is an antiallergen agent, an antibacterial agent, an antiseptic or an antifungal agent.

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