JP2003321926A - Building material tatami mat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a building material tatami mat of which the disposal is simple and hardly gives adverse effects to the environment. <P>SOLUTION: Tatami boards 3 made by compressing fine wooden chips and biodegradable starch resin boards 2 are laminated to form the building material tatami mat. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a building material tatami floor,
More specifically, it relates to a building material tatami floor that is easily disposed of and has little adverse effect on the environment.

[0002]

2. Description of the Related Art In recent years, there has been a building material tatami floor, which is made by laminating a fine wood compressed tatami board and a chemically synthetic resin board as a tatami mat base material, and a polystyrene foam board is used as the chemically synthetic resin board. Has been done. The building material tatami mat has the characteristics of low cost and good heat insulating property, and therefore has a prevalence rate of about 70% of the whole tatami mat.

[0003]

By the way, when tatami mats are no longer needed, they are conventionally disposed of by incineration or by burying them in the soil to rot them, but since the tatami mats for building materials include polystyrene foam boards, Incineration of the tatami floor produces a large amount of soot and may contribute to the generation of harmful gases. If it is buried in the soil, polystyrene foam will remain forever and will contribute to environmental pollution.

Therefore, when the building material tatami floor is disposed of, the Tatami board and the polystyrene foam board are separated and separately processed, but the separation processing is troublesome.

In view of the conventional problems, it is an object of the present invention to provide a building material tatami floor which is easy to dispose of and has little adverse effect on the environment.

[0006]

As a result of intensive studies, the present inventors have found that the above-mentioned problems can be solved by the following means.

That is, the building material tatami floor of the present invention is characterized in that the tatami board and the biodegradable starch resin board are laminated.

Since the building material tatami floor of the present invention uses a biodegradable starch resin plate, the building material tatami floor is not subjected to a separation treatment and does not generate a large amount of soot or harmful gas when incinerated as it is.
Even if it is buried in the soil as it is, it is easily decomposed by microorganisms. Therefore, the disposal process is simple and the environment is hardly adversely affected.

In the present invention, the biodegradable starch resin plate is preferably a foamed molded product.

When the biodegradable starch resin plate is a foamed molded product, it can be made to have appropriate elasticity, and a tatami mat that is comfortable to step on and comfortable to sit on can be provided.

In the present invention, the protective material is preferably laminated on the Tatami board. The presence of protective material can result in a tatami mat that is comfortable to walk on.

It is further preferred that the protective material is made of biodegradable starch resin. If the protective material is made of a biodegradable starch resin, it is not necessary to carry out a separate treatment, so that it can be easily disposed of and has little adverse effect on the environment.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a partial schematic perspective view showing a tatami mat including a first embodiment of a building material tatami floor of the present invention.

The building material tatami floor 1 of the first embodiment has a biodegradable starch resin plate between two upper and lower tatami boards 3 (upper tatami board) and 3 '(lower tatami board). 2 is intervened, a protective material 5 is laminated on the upper surface of the upper tatami board 3 to prevent the fibers of the tatami board from fluffing and scattering and to improve the cushioning property, and on the lower surface of the lower tatami board 3 ' A backing material 4 for reinforcing the back surface of the tatami floor 1 is laminated and sewn with a sewing thread. The building material tatami floor 1 uses only the biodegradable starch resin board 2 instead of the polystyrene foam board used in the conventional building material tatami floor. The tatami mat 6 is laminated and sewn on the upper side of the protective material 5 of the building material tatami floor 1.

In the present specification, when the tatami mat is installed on the floor, the front side is referred to as the upper side and the back side (contacting the floor) is referred to as the lower side.

The biodegradable starch resin plate 2 is obtained from a natural plant-based biodegradable starch resin.

The biodegradable starch resin is a resin containing a biodegradable starch as a main component, and a resin containing starch from corn as a main component is preferable.

The biodegradable starch resin plate 2 used in the first embodiment is preferably a foam. The foam is manufactured by a known foam molding method, for example, as follows.

First, a biodegradable starch resin, a foaming agent, a polyolefin resin, a filler, a dispersant, a cross-linking agent, a foaming aid and the like are mixed, and the mixture is kneaded until it becomes uniform and rolled into a sheet. To get The obtained sheet is put in a mold, heated and pressed to obtain a foam, and then finished to obtain a biodegradable starch resin plate 2.

The preferred blending ratio of the biodegradable starch resin, the foaming agent, the polyolefin resin, the filler, the dispersant, the crosslinking agent and the foaming aid is 52 to 82 of the biodegradable starch resin with respect to the total weight thereof. % By weight, 3-10% by weight of blowing agent, 5-20% by weight of polyolefin resin, 5% by weight of filler
-30% by weight, dispersant 0.5-4% by weight, crosslinking agent 0.5-4% by weight and foaming aid 2-4% by weight.

In the building material tatami floor 1 of the first embodiment,
As the protective material 5 laminated on the upper side tatami board 3, it is preferable to use a material having cushioning property and moisture absorbing property for the purpose of mainly providing tatami mat with comfortable walking comfort, sitting comfort, moisture resistance and deodorant property. it can.

The protective material 5 is biodegradable,
Particularly, a foamed sheet made of a biodegradable starch resin is preferably used. As the biodegradable starch resin for producing the protective material 5, the same resins as those mentioned for the biodegradable starch resin plate 2 can be used.

Further, as the protective material 5, it is possible to use a sheet such as a bamboo charcoal-blended sheet, which is expected to improve the moisture absorption effect.

As the Tatami boards 3 and 3 ', J
A Tatami board specified in IS-A-5905 or one having performance equal to or higher than that of Tatami board can be used.

As the back material 4, it is preferable to use hemp cloth such as jute or woven or non-woven cloth made of natural plant material such as balm or the like.

By using natural plant-based biodegradable materials for the Tatami boards 3, 3 ', the protective material 5 and the back material 4, the disposal of tatami mats is very easy and has a bad influence on the environment. Absent.

In the above-mentioned embodiment, it is preferable to use a plate and a sheet foamed with a foaming agent as the biodegradable starch resin plate 2 and the protective material 5, but the biodegradable starch resin of the present invention is used. It is not always necessary to use foam as the plate and the protective material.

FIG. 2 is a partial schematic perspective view showing a tatami including a second embodiment of the building material tatami floor of the present invention.

In the building material tatami floor 1 of the second embodiment, two biodegradable starch resin plates 2 are vertically stacked on each other, and two tatami boards 3 (upper tatami board) and 3 '(lower tatami board) are provided. Board) is laminated, and the back surface material 4 is laminated on the lower surface of the biodegradable starch resin plate 2 and sewn with a sewing thread. A tatami mat 6 is sewn on the upper tatami board 3 of the building material tatami floor 1.

As the biodegradable starch resin plate 2, the tatami boards 3 and 3 ', and the back surface material 4 constituting the building material tatami floor 1, the same materials as those used in the above-mentioned embodiment are used.

Further, in the building material tatami floor of the above-mentioned embodiment, two sheets of Tatami board are used, but the number of sheets used is not particularly limited, and one sheet or two or more sheets may be used.

Further, each component such as the biodegradable starch resin plate which constitutes the building material tatami floor is sewn with a sewing thread. Sewing thread is JIS-L-2501, JIS-L-250
2, any thread can be used as long as it is a thread specified in JIS-L-2503, JIS-L-2504 or JIS-L-2505 or a thread having a performance equal to or higher than those. At this time, in order to prevent the sewing thread from directly contacting the biodegradable starch resin plate or Tatami board because the backing material cannot be attached, and to protect the tatami floor from the moisture contained in concrete etc., the backing material Above, for example, a sheet is interposed between the Tatami board 3'and the backing material 4 in the first embodiment, and between the biodegradable starch resin plate 2 and the backing material 4 in the second embodiment. You may let me. Further, an adhesive may be used instead of the suture thread, or both the suture thread and the adhesive may be used.

[0034]

EFFECTS OF THE INVENTION The building material tatami floor of the present invention has an effect that it can be easily disposed of and has almost no adverse effect on the environment.

[Brief description of drawings]

FIG. 1 is a partial schematic perspective view showing an embodiment of a building material tatami floor of the present invention.

FIG. 2 is a partial schematic perspective view showing another embodiment of the building material tatami floor of the present invention.

[Explanation of symbols]

1 ... Building material tatami floor 2 ... Biodegradable starch resin plate 3 ... Upper tatami board 3 '... Lower tatami board 4 ... Back material 5 ...
Protective material 6 ... tatami mat

Continued front page    (72) Inventor Kozaburo Nishibori             Kyoto Prefecture Kyoto City Shimogyo-ku Kawaramachi Dori Matsubara Kamiru Shimizu             No. 283 in Japan Garment Industry Co., Ltd. F-term (reference) 2E220 AA07 AA47 AC01 AD06 BA01                       EA03 GA02X GA22X GA24X                       GA25X GA27X GA28X GA30X                       GB32X GB42X GB46X GB49X                       GB50X GB53X GB54X

Claims (4)

[Claims] 1. A tatami flooring material for construction, comprising a laminate of Tatami board and a biodegradable starch resin plate. 2. The building material tatami floor according to claim 1, wherein the biodegradable starch resin plate is a foamed molded product. 3. The building material tatami floor according to claim 1, further comprising a protective material laminated on the Tatami board. 4. The building material tatami floor according to claim 3, wherein the protective material is made of a biodegradable starch resin.