JP2003181808A - Method for manufacturing charcoal-containing sandwich building interior plate material and its building interior plate material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a building interior plate material forming a healthy and environment-friendly dwelling space without generating formaldehyde, having a three layer compressed structure wherein both surface layers have a wooden chip pattern gentle to the environment, an intermediate layer is made of chip-like charcoal to hold air-permeability and a sound absorption effect through the whole layer, conditioning, deodorization, heat insulation and antisepsis function are exhibited and all other than phenolic resin as an adhesive are natural materials. <P>SOLUTION: A waste wood is used as raw materials and a part thereof is pulverized to a required size. After making wood chip thereby, it is dried to about 4% or under in water content. After preparing a part into charcoal, that is pulverized to form charcoal chips. Then, they are separately put into each phenolic resin liquid tank, and respectively impregnated with phenolic resin. Lastly they are cast into a pressure machine to obtain a three layer structure wherein the charcoal chip as a core layer is put between the wood chips as both surface layers. The method for manufacturing a charcoal-containing sandwich building interior plate material by one process at the heat treating stage and the building interior plate material are obtained. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charcoal sandwich interior building board material used for inner walls, floors, ceilings and the like.

[0002]

2. Description of the Related Art Up to now, various composite plywoods that make use of the characteristics of charcoal have been proposed, but there are several manufacturing processes for the composites themselves, and in terms of cost, dehumidifiers and air purifiers. However, it was not necessarily advantageous compared to the installation of an ozone generator, and there was also a problem with the external appearance, and there was a feeling that it was not widely used.

[0003]

SUMMARY OF THE INVENTION In view of the above-mentioned conventional circumstances, the present invention focuses on wood waste discharged as a by-product of construction and construction, and carbonizes wood into chips and wood chips. And, after impregnating each with a resin adhesive containing no formalin, by sandwiching the charcoal chips as the core layer from both sides with the wood chip layer, by compression molding in one step in the heat treatment stage, Both surface layers are environmentally friendly with wood chip pattern, the middle layer is chip-like charcoal, and the entire layer retains air permeability and sound absorption effect, and exerts the characteristics of charcoal such as humidity control, deodorization, heat insulation and antiseptic function. We aim to provide a building interior board that forms a healthy and eco-friendly living space by using all natural materials except the adhesive that does not contain formalin.

[0004]

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention uses wood waste as a raw material, a part of which is shredded to a desired size to form wood chips, and has a water content of about 4% or less. Dry until it becomes, partly charcoal and then shred to desired size to make charcoal chips, then put in an adhesive tank separately and impregnate each with resin adhesive without formalin, Finally, wood chips are placed on both surface layers and charcoal chips are sandwiched in the middle layer, and the charcoal chips are sandwiched between them into a pressure machine. It is a manufacturing method

In the above construction, the resin adhesive is a method for producing a sandwich building interior board material containing a charcoal which is a phenol resin.

Further, in the above construction, the resin adhesive is a method for producing a sandwich building interior board material containing carbon, which is a mixture of phenol resin and methanol.

Further, in the embodiment in which the phenol resin is mixed with methanol, the impregnated amount of the phenol resin is 10% to 20% with respect to the weight of the material.

Furthermore, it is a sandwich building interior board material containing charcoal obtained by any one of the above-mentioned manufacturing methods.

[0009]

EXAMPLES The manufacturing method of the present invention will be described step by step with reference to the flow chart of FIG. The wood waste 1 that is a raw material uses building and construction by-products, and is separated into those that are charcoal-burned and those that are not charcoal-burned at the work place. And make charcoal chips 2. On the other hand, those which do not carbonize wood are directly shredded by a crusher to form wood chips 3, and dried to a water content of 4% or less. The water content of 4% or less is because the wood chip has a porous structure and characteristics that exert an absorbing function like a sponge, and also has the characteristic of discharging water when external pressure is applied. This is because it is effective.

Next, the charcoal chips 2 and the wood chips 3
Are placed in tanks in which the phenol resin and methanol are mixed to keep the viscosity constant, and the time required for impregnating the phenol resin with the material weight by 10 to 20% is set.

Then, a predetermined amount of the wood chips 3a impregnated with the phenol resin is put into a pressurizing machine (hot press), and a predetermined amount of the charcoal chips 2a also impregnated with the phenol resin is put into the press, and further The same wood chips 3a as the first layer are put on the top to form a three-layer structure (FIG. 2).

Then, in the state of this three-layer structure, 0 ° C-
Pressurize at 140 ° C. Although the pressing time varies depending on the plate thickness, it is about 60 minutes with a thickness of 10 mm as a guide. By this pressurization, the wood charcoal chips 2a serving as the intermediate layer are bite-likely integrated into the upper and lower wood chip 3a layers (FIG. 1).

The plate material 4 thus formed by hot pressing is taken out of the press machine while it is warm, cooled, and then cut into a predetermined size to complete the charcoal sandwich architectural interior plate material of the present invention (see FIG. 1).

[0014]

EFFECT OF THE INVENTION The charcoal-filled sandwich building interior board obtained as described above has various chips of wood chips appearing on both surface layers as an irregular pattern. It has excellent decorativeness. The wood chip pattern is environmentally friendly and contributes to mental health.
Since it is completed as a sandwich-like finishing material, it can be attached without an underlay, and an upholstery is unnecessary. Installation is extremely easy.

Structurally, since the charcoal chip 2a is sandwiched between the upper and lower wood chip 3a layers, the entire layer has air permeability and sound absorption effect, and the charcoal characteristic humidity control,
Deodorization, heat insulation, antiseptic function are maintained, and all of the natural materials except phenol resin as an adhesive do not generate formaldehyde, and it is possible to obtain a building interior board material that forms a healthy and environmentally friendly living space.

Since the wood waste 1 as a raw material can utilize by-products of construction and construction, it is advantageous in terms of manufacturing cost and greatly contributes to the construction of a recycling-based society.

[Brief description of drawings]

FIG. 1 is a perspective view of a charcoal-filled sandwich building interior board manufactured according to the present invention.

FIG. 2 is a partially cutaway perspective view showing a three-layer structure of a sandwich building interior board material containing charcoal produced by the present invention.

FIG. 3 is a flow chart showing a manufacturing procedure of the present invention.

[Explanation of symbols]

1 wood waste 2 charcoal chips 2a Charcoal chip impregnated with phenolic resin 3 wood chips 3a Wood chips impregnated with phenolic resin 4 Plates formed by hot pressing

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 2B250 AA01 BA00 CA11 FA21 HA01                 2B260 AA10 AA20 BA02 BA18 BA27                       CB01 DA04 EA03                 2E110 AA02 AA16 AA28 AA64 AB03                       AB04 AB05 AB23 BA03 BA12                       BA21 EA04 EA09 GB62W                       GB62Z

Claims (5)

[Claims] 1. A water content of about 4% after wood chips are used as a raw material and a part of them is shredded to a desired size to form wood chips.
Dry until it becomes the following, partly charcoal and then shred to the desired size to make charcoal chips, then put each in an adhesive tank and impregnate each with a resin adhesive containing no formalin. , Finally, put wood chips on both surface layers into a pressure machine so that a three-layer structure in which charcoal chips are sandwiched in the core layer, and press-mold in one step in the heat treatment stage Manufacturing method. 2. The method for producing a sandwich building interior board material containing carbon according to claim 1, wherein the resin adhesive is a phenol resin. 3. The process for producing a sandwich building interior board material containing carbon according to claim 1, wherein the resin adhesive is a phenol resin mixed with methanol. 4. The method for producing a sandwich building interior board material containing charcoal according to claim 3, wherein the impregnated amount of the phenol resin is 10% to 20% based on the weight of the material. 5. A sandwich building interior plate material containing charcoal obtained by the method according to any one of claims 1 to 4.