JP2003191214A - Tatami mat deodorizing board coated with powered charcoal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tatami mat deodorizing board coated with powdered charcoal which adsorbs harmful substances such as formaldehyde in a short period of time. <P>SOLUTION: In the tatami deodorizing board 9 coated with powdered charcoal, a powdered charcoal layer containing powdered charcoal 3 is formed on the surface of a straw fiber board 8. In the straw fiber board 8, a material mixed with crushed straw 1 is compressed. The adsorption effect of the crushed straw 1 constituting the straw fiber board 8 is added to the adsorption effect of the powdered charcoal 3 as a synergetic effect. A straw has a narrow hole at the center of the stem. Since the hole is surrounded with a porous sponge material, the straw hafcs higher adsorption function for adsorbing harmful substances such as formaldehyde in air as compared with wood of few narrow holes and sponge materials. Therefore, the board 9 adsorbs harmful substances such as formaldehyde efficiently to purify air in a room. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a pulverized coal coated tatami deodorizing board.

[0002]

2. Description of the Related Art Conventionally, chemical hypersensitivity such as sick house syndrome or sick school syndrome, which adversely affects the human body, is socially affected by harmful substances such as formaldehyde contained in organic adhesives used for furniture and the like. It's a big problem. As a technique for solving such a problem, for example, there is a tatami floor board disclosed in Japanese Patent Laid-Open No. 2000-320116. This conventional technology applies an aqueous binding solution containing finely powdered activated carbon to the surface of a wood fiber board to form a coating layer, thereby adsorbing harmful substances such as formaldehyde by the finely powdered activated carbon contained in the coating layer. Is something that can be done.

[0003]

The conventional board, however, has a problem that the adsorption speed is slow because harmful substances such as formaldehyde are adsorbed only by the finely powdered activated carbon contained in the coating layer.

In view of such circumstances, an object of the present invention is to provide a pulverized coal coated tatami deodorizing board capable of adsorbing harmful substances such as formaldehyde in a short time.

[0005]

A pulverized coal coated tatami deodorizing board according to claim 1, wherein the pulverized coal coated tatami deodorizing board has a pulverized coal layer containing pulverized coal formed on the surface of a straw fiber board. It is characterized in that the fiber board is a straw fiber board made of a material in which crushed straw is mixed. The pulverized coal coated tatami deodorizing board according to claim 2 is the invention according to claim 1,
The material for the straw fiber board is a mixture of the crushed straw and crushed waste paper.

According to the invention of claim 1, the adsorbing action of the pulverized straw constituting the straw fiber board is added as a synergistic effect to the adsorbing action of the pulverized coal contained in the pulverized coal layer on the surface of the straw fiber board. Since straw has a thin hole in the center of the stem and a porous sponge surrounds the hole, compared to wood that has only a few thin holes and sponge, formaldehyde in the air Has a high adsorption function of adsorbing harmful substances such as. Therefore, harmful substances such as formaldehyde can be adsorbed in a short time, and the indoor air can be purified in a short time. According to the second aspect of the invention, the cost of the material can be reduced by using the waste paper as the material of the straw fiber board.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a manufacturing flowchart of the pulverized coal coated tatami deodorizing board 9 of the present embodiment. As shown in the figure, the materials for producing the dust coal coated tatami deodorizing board 9 of the present embodiment are straw 1, waste paper 2, dust coal 3, adhesive 4, water repellent 5, and water 6. The straw 1 may be only straw obtained by drying the stems of rice and wheat, or straw tatami made mainly of straw. In the case of straw tatami, it contains thread and cloth in addition to straw, but it can be used as it is as a material. Since straw has a thin hole in the center of the stem and a porous sponge surrounds the hole, compared to wood that has only a few thin holes and sponge, formaldehyde in the air Has a high adsorption function of adsorbing harmful substances such as.

The waste paper 2 may be cardboard, magazines, advertisement paper, newspaper, etc., as long as it contains plant fibers and can be disentangled. By using waste paper as the material for the straw fiber board, the material cost can be reduced.

The pulverized coal 3 is obtained by finely pulverizing charcoal obtained by carbonizing bamboo or wood, and is a fine charcoal having a diameter of 150 mesh or less. The adhesive 4 is preferably a vegetable adhesive such as stucco glue or dextrin, or a water-soluble adhesive such as CMC. The water repellent 5 is not particularly limited as long as it gives the bamboo charcoal coated board 9 water repellency. The water 6 is not particularly limited.

To manufacture the pulverized coal coated tatami deodorizing board 9,
First, use a shredder or other crushing device to remove straw 1 from about 4
It is crushed to about 6 [mm] (11). On the other hand, the used paper 2 is crushed to about 4 to 6 mm by a crusher such as a shredder (12).

Next, the straw 1 and the waste paper 2 are mixed with a mixer such as a pulper (13). The mixing ratio of straw 1 and waste paper 2 is preferably 60 to 70% of straw 1 and 30 to 40% of waste paper 2 in the total volume ratio.

Then, the mixed material of straw 1 and waste paper 2 is made into paper by a paper making machine, and the length is about 2 [m] and the width is about 1 [m].
The straw fiber board 8 having a thickness of about 10 to 15 mm is formed (14).

On the other hand, the pulverized coal 3, the adhesive 4, the water repellent 5 and the water 6 are mixed by a mixer (15). The mixing ratio of pulverized coal 3, adhesive 4 and water 6 is about 20% for pulverized coal 3, about 30% for adhesive 4 and about 50% for water 6 based on the total volume ratio.
Is preferred. The water repellent 5 may be added appropriately.

Then, the mixture of the powdered coal 3, the adhesive 4, the water repellent 5 and the water 6 is applied to the surface of the straw fiber board 8 by the roll application device (16).

Next, the straw fiber board 8 is cut into a desired length, for example, about 1 to 2 [m] by a cutter, and cut and aligned (17).

Then, it is dried with a drier (18), molded and pressed with a hot press to a desired thickness (19), and finally finished with a cutter (20) to obtain a pulverized coal coated tatami mat of this embodiment. The deodorizing board 9 can be manufactured.

Next, the pulverized coal coated tatami mat deodorizing board 9 of this embodiment will be described. Pulverized coal coated tatami deodorizing board 9 of the present embodiment
In addition, the adsorbing action of the pulverized straw 1 constituting the straw fiber board 8 is added as a synergistic effect to the adsorbing action of the pulverized coal 5 contained in the pulverized coal layer on the surface of the straw fiber board 8. Since straw has a thin hole in the center of the stem and a porous sponge surrounds the hole, compared to wood that has only a few thin holes and sponge, formaldehyde in the air Has a high adsorption function of adsorbing harmful substances such as. Therefore, harmful substances such as formaldehyde can be adsorbed in a short time.

[0018]

According to the invention of claim 1, the adsorbing action of the pulverized straw constituting the straw fiber board has a synergistic effect on the adsorbing action of the pulverized coal contained in the pulverized coal layer on the surface of the straw fiber board. Join. Since straw has a thin hole in the center of the stem and a porous sponge surrounds the hole, compared to wood that has only a few thin holes and sponge, formaldehyde in the air Has a high adsorption function of adsorbing harmful substances such as. Therefore, harmful substances such as formaldehyde can be adsorbed in a short time, and the indoor air can be purified in a short time. According to the second aspect of the invention, the cost of the material can be reduced by using the waste paper as the material of the straw fiber board.

[Brief description of drawings]

FIG. 1 is a manufacturing flowchart of a pulverized coal coated tatami deodorizing board 9 of the present embodiment.

[Explanation of symbols]

1 straw 2 waste paper 3 pulverized coal 4 adhesive 5 Water repellent 6 water 8 straw fiber board 9 pulverized coal coated tatami deodorizing board

Front page continuation (51) Int.Cl. ⁷ Identification code FI theme code (reference) E04C 2/16 E04C 2/16 B 4G066 E04F 15/02 102 E04F 15/02 102C F term (reference) 2B260 AA20 BA05 BA07 BA19 CB01 CD02 2E001 DH21 GA06 GA12 HC05 HC11 JC02 2E162 CC08 EA11 FC01 2E220 AA53 AD01 BA01 GB53X GB54Z 4D012 BA03 CA09 CB09 CG01 4G066 AA42B AC02C AC07C BA02 BA20 CA02 DA03 EA20

Claims (2)

[Claims] 1. A pulverized coal coated tatami deodorizing board in which a pulverized coal layer containing pulverized coal is formed on the surface of a straw fiber board, wherein the straw fiber board is made of a material in which crushed straw is mixed. A charcoal-coated tatami deodorizing board characterized by being a straw fiber board. 2. The dust coal coated tatami deodorizing board according to claim 1, wherein the material of the straw fiber board is a mixture of the crushed straw and crushed waste paper.