JP3519379B2 - Method of manufacturing wood-like molded products - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a waste material mixed resin obtained by mixing a thermoplastic resin, a thermosetting resin and impurities obtained from resin waste material, and a wood waste material crushed powder obtained by crushing wood waste material. The present invention relates to a method for producing a wood-like molded article including and.

[0002]

BACKGROUND ART Conventionally, a crushed powder obtained by crushing a cellulosic material is mixed with a resin or the like, and the mixture is molded into a desired shape by extrusion molding or injection molding so that a texture such as a feeling of touch is natural wood. A similar wood-like molding was being formed. And, the above-mentioned cellulose material was used as a scrap material and sawdust of a wooden member for building, but as a building member from the viewpoint of effective use of resources and environmental protection, a building panel etc. which has been used once is recovered, and Crush the collected building materials,
Once again, it became desirable to use it as a raw material. As an example of a method for producing a wood-like molded article using as a raw material pulverized powder obtained from such a collected building member such as a building panel, for example, Japanese Patent Laid-Open No. 11-12922.
The technique described in Japanese Patent Publication No. 3 is known. This technology is a mixing step of collecting a recovered wood member of wood and a recovered resin member made of resin from a building member, mixing the recovered wood member and the recovered resin member, and crushing the mixture in this mixing step. And a kneading step of kneading the crushed powder obtained by the crushing step, and a molding step of extruding or injection molding the mixture kneaded in the kneading step.

[0003]

By the way, the wood-like molded article described in Japanese Patent Laid-Open No. 11-129223 uses a recovered resin member recovered from a building member as a raw material. For example, it has been conventionally used for landfill. It is desired to reuse the existing plastic bottles, paper, aluminum foil, and resin packaging materials such as trays used for food packaging as raw materials for wood-like molded products. However, plastic bottles are made of thermoplastic resin that is easily melted or thermosetting resin that is difficult to melt, and resin packaging materials such as trays are made of thermoplastic resin, and since they also contain impurities such as paper and aluminum foil, It is difficult to use a mixture of the above materials in extrusion molding or injection molding, and thus it is difficult to produce a wood-like molded product from such materials. Therefore, it has not been possible to improve the recycling rate of waste materials. The present invention has been made in view of the above circumstances, and easily manufactures a wood-like molded article that uses a waste material in which a thermoplastic resin, a thermosetting resin, and impurities are mixed, and improves the reuse rate of the waste material. An object of the present invention is to provide a method for producing a wood-like molded article that can be manufactured.

[0004]

In order to solve the above-mentioned problems, the invention of claim 1 provides a tree structure as shown in FIG.
Obtained from waste oil, impure with thermoplastic and thermosetting resins
Waste wood mixed resin, which is a mixture of materials and wood waste
Wood containing pulverized powder of wood waste obtained by
A method for manufacturing a molded article as described above, wherein the waste material mixed resin is
coarsely pulverized to less than mm to make a waste resin mixed resin
Waste material mixture Resin coarsely pulverized material is fused and solidified, and waste material is mixed.
Compound resin solidified product and crushed this waste material mixed resin solidified product
Then, the solidified material crushed powder is used.
Knead the crushed thermoplastic resin and the pulverized powder of wood waste
・ Molding to produce the second wood powder-containing compound,
2 Melt a compound containing wood flour and mold it into the required shape
It is characterized by

According to the invention of claim 1, a thermosetting resin or
It is difficult to melt the waste material mixed resin mixed with impurities.
coarsely crushed to less than mm and then fused to solidify
And then pulverize it into a solidified product pulverized powder.
Kneading and molding with crushed thermoplastic resin and pulverized powder of wood waste materials
To produce a second wood flour-containing compound.
Compounds containing wood powder are coarsely crushed resin mixed with waste materials and heat
Each of the plastic resin and the pulverized powder of wood waste materials is sufficient for kneading.
It was dehydrated in minutes, the specific gravity became smaller, and it was mixed uniformly.
It becomes a molded product. Such a second wood flour containing compound
Easily wood by melting and shaping into the desired shape
A quality-like molded product can be obtained. That is, waste material mixed resin
Directly molding coarsely crushed products, thermoplastic resins, and pulverized powder of wood waste materials
The difference in the specific gravities of these causes
In the hopper, it was not possible to separate and mix uniformly.
Since dust is diffused from the product and the content changes,
In the present invention, the second wood flour-containing contaminated
The pound is manufactured and melted into the desired shape.
Since it is molded, a wood-like molded product can be easily obtained.
In this way, thermoplastic resins that are easy to melt and difficult to melt
Waste material mixed resin made by mixing thermosetting resin and impurities
To easily produce wood-like moldings from wood and wood waste
Recycle waste wood mixed resin and wood waste wood
Can improve the recycling rate of waste materials
It The waste material mixed resin is roughly crushed to 20 mm or less.
Then, fuse and solidify, then crush and solid
Second wood powder is included after kneading and molding after being made into crushed powder
Since the compound is produced, the first wood powder is contained in claim 3.
Thermosetting resin, impurities, thermoplastic compared to compound
The resin is more evenly mixed without separation.
The moldability can be improved.

[0006]

As the waste material mixed resin containing the thermoplastic resin, the thermosetting resin, and the impurities, for example, plastic waste produced by the container and packaging recycling method is used. Plastic waste includes plastic bottles, acrylic resin containing aluminum hydroxide such as artificial marble, reinforced plastics (FRP) reinforced with glass fiber, nylon, and paper, cloth, aluminum foil in the above resins. There are many examples. Examples of the thermosetting resin include phenol resin, melamine resin, urethane resin, and polyurethane resin. Examples of the thermoplastic resin include resins obtained from containers, packaging, trays, etc. of foods including beverages, such as polypropylene resin (PP), polyvinyl chloride resin (PVC), polyethylene resin (P
E), foamed vinyl chloride resin, polystyrene resin and the like. As the wood waste, for example, wood waste discharged when dismantling a building such as a house or wood waste discharged when dismantling furniture, wood scraps discharged during building construction, sawdust, etc. Can be mentioned.

[0008]

[0009]

The invention of claim 2 is obtained from a resin waste material,
A method for producing a wood-like molded article containing a waste material mixed resin obtained by mixing a thermoplastic resin, a thermosetting resin, and impurities, and a wood waste material crushed powder obtained by crushing a wood waste material, wherein The waste material mixed resin is roughly crushed to 20 mm or less to obtain a waste material mixed resin coarsely crushed material, and the waste material mixed resin coarsely crushed material, the crushed thermoplastic resin, and the wood waste material crushed powder are kneaded and molded to form a first product. A wood powder-containing compound is produced, on the other hand, the waste material mixed resin is roughly crushed to 20 mm or less to obtain a waste material mixed resin coarsely pulverized product, and the waste material mixed resin coarsely pulverized product is fused and solidified to form a waste material mixed resin solid. And pulverize the solidified material of the waste material mixed resin to obtain a solidified material pulverized powder. The solidified material pulverized powder, the pulverized thermoplastic resin and the woody waste material pulverized powder are kneaded and molded to form a second tree. Powder containing compound Concrete and, characterized by forming into a desired shape by mixing and melting said first wood powder-containing compound and the second wood powder-containing compound.

According to the second aspect of the present invention, the first wood powder-containing compound and the second compound are produced, respectively. The first wood powder-containing compound and the second compound are produced respectively.
In the wood powder-containing compound, each of the waste material mixed resin coarsely pulverized material, the thermoplastic resin, and the wood waste material pulverized material is sufficiently dehydrated at the time of kneading so that the specific gravity becomes small, and a molded article is uniformly mixed. By mixing and melting the first wood powder-containing compound and the second wood powder-containing compound and molding them into a desired shape, a wood-like molded product can be easily obtained. In other words, if you try to directly form the waste material mixed resin coarsely pulverized material, the thermoplastic resin, and the wood waste material pulverized powder, they cannot be uniformly mixed because they are separated in the hopper of the molding machine due to the difference in their specific gravity. Since the dust is diffused and the content varies, it becomes impossible to mold. However, in the present invention, the first wood powder-containing compound and the second wood powder-containing compound are manufactured and mixed and melted. Since it is molded into a required shape by using the above, a wood-like molded product can be easily obtained. In this way, it is possible to easily produce a wood-like molded product from a thermoplastic resin that is easily melted, a thermosetting resin that is difficult to melt, a waste material mixed resin that is mixed with impurities, and a wood waste material. The mixed resin and the wood waste can be reused, and the reuse rate of the waste can be improved.

[0012]

[0013]

According to a third aspect of the present invention, for example, as shown in FIG. 4, a waste material mixed resin obtained from a resin waste material and obtained by mixing a thermoplastic resin, a thermosetting resin and impurities, and a wood waste material are crushed. A method for producing a wood-like molded article containing a pulverized powder of wood waste material obtained by the above, wherein the waste resin mixed resin is roughly pulverized to 20 mm or less to obtain a waste material mixed resin coarse pulverized product, and the waste material mixed resin coarse pulverized The material is fused and solidified to form a waste material mixed resin solidified material, and this waste material mixed resin solidified material is crushed to 1 mm or less to obtain solidified material crushed powder. This solidified material crushed powder and crushed thermoplastic resin And the pulverized powder of wood waste materials are kneaded and melted to form a desired shape.

According to the invention of claim 3 , the waste material mixed resin solidified product is crushed to 1 mm or less, and then the crushed thermoplastic resin and the wood waste material crushed powder are kneaded and melted to obtain a desired shape. since forming, compared to claim 1, wherein the waste material mixed resin is more finely pulverized, more uniform and the ground waste mixed resin pulverized product and the thermoplastic resin and the wood waste material ground powder It will be in a mixed state. Therefore, for example, in the case of extrusion molding having a hollow shape, a wood-like molded product can be easily produced from these waste material mixed resins and wood waste material crushed powder without causing problems such as unmelted materials being caught by the core. can do. Also,
The waste material mixed resin solidified product is 20 mm of waste material mixed resin.
Since it is roughly crushed below and then fused and solidified , compared to the case where only the waste material mixed resin is crushed ,
The thermosetting resin, the impurities, and the thermoplastic resin can be uniformly mixed without being separated, and the moldability is improved.

According to a fourth aspect of the present invention, in the method for producing a wood-like molded article according to any one of the first to third aspects, the waste material mixed resin is 5 to 20 wt% with respect to the entire molded article, and the heat The plastic resin is contained in an amount of 25 to 40 wt%, and the wood waste pulverized powder is included in an amount of 10 to 55 wt%.

According to the fourth aspect of the invention, the wood waste crushed powder is contained in an amount of 10 to 55% by weight based on the whole molded product, whereby the wood-like molded product can contain a large amount of wood waste crushed powder. As a result, the texture and texture closer to that of real wood can be obtained. In addition, the waste resin mixture is 5
-20 wt% and the thermoplastic resin 25-40 wt%, the amount of waste material used increases and the reuse rate of waste material can be improved.

Here, the pulverized powder of wood waste material is contained in an amount of 10 to 55% by weight with respect to the entire molded product. If it is less than 10% by weight, it is difficult to give a texture such as a touch similar to that of real wood, and 55% by weight. This is because if the content exceeds%, the pulverized powder of wood waste material becomes excessive and the moldability of the wood-like molded product deteriorates. In addition, it is difficult to improve the recycling rate of the waste material when the content of the waste material mixed resin is 5 to 20 wt% with respect to the entire molded product when the content is less than 5 wt%, and impurities and the like which are difficult to melt when the content exceeds 20 wt%. This is because a large amount of thermosetting resin is included, so that the moldability of the wood-like molded product is reduced. Further, the thermoplastic resin is used in an amount of 25-40 with respect to the entire molded product.
If the content is less than 25 wt%, the amount of the thermoplastic resin is too small, and it is difficult to melt the mixture because it is difficult to melt.
This is because it is difficult to mold, and if it exceeds 40 wt%, a large amount of a thermoplastic resin is included, so that a wood-like molded product with a wooden texture cannot be formed.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. The wood-like molded article produced by the present invention is obtained from a resin waste material, a waste material mixed resin obtained by mixing a thermoplastic resin, a thermosetting resin and impurities, and a wood material obtained by crushing the wood waste material. Includes crushed powder of waste materials. Hereinafter, the first to fifth embodiments of the method for manufacturing a wood-like molded article will be described.

As shown in FIG. 1, in the first embodiment,
First, in the crushing step, the wood waste material is crushed to form wood waste material crushed powder. In addition, this crushing process, primary crushing,
It is formed from three stages of secondary crushing and tertiary crushing. Needless to say, this pulverization form is divided into each stage in order to efficiently perform, and is not particularly limited to this, and one type of pulverization process can be sufficiently performed.

The crushing device used in the primary crushing step has a crushing function capable of forming a large lump of one lump having a size of about several centimeters. This is a crushing device in which a large number of protrusions are formed on the surfaces of two opposing rollers and the rollers are rotated while applying pressure between the rollers to crush the material passing between them. Of course, the crushing device is not limited to this, and another crushing device for coarse crushing may be used as long as it has the same function. For example, a jaw crusher that crushes the raw material by putting the raw material between a jaw opened in an upward V-shape and a vibrating jaw, and a movable crushing surface that swivels in a fixed crushing surface, and a jay that crushes continuously. Other coarse crushing devices such as a rent re-crusher may be used.

Next, in the secondary crushing step, the primary crushed material after the primary crushing step is crushed into fine powder.
The crushing device used in this secondary crushing process is capable of crushing large lumps into fine powder up to several millimeters or less. Specifically, hammer chips that rotate at high speed are used as materials. A hammer mill is used that repeats the crushing action until it passes through the round hole of the screen on the outer periphery of the hammer tip. Of course, the crushing device used is not limited to the hammer mill described above, and any other crushing device may be used as long as it has a similar function. For example, a cutter mill that shreds with a cutter or a roll mill that crushes with a roller may be used.

Next, in the tertiary crushing step, the secondary crushed material which has undergone the secondary crushing step is crushed into fine powder.
The crushing device used in the third crushing step is capable of crushing the material obtained in the second crushing step into finer fine powder. Specifically, it is a so-called pin mill, the pin attached to the disk, impact,
Fine pulverization can be performed by receiving a repulsive interaction. More specifically, this pin mill comprises a disk-shaped rotating disk having a large number of pins in the vertical direction and a fixed disk having a large number of pins on the surface facing the rotating disk, and is obtained by a secondary crushing process. When the material is put into the center of the rotating disc, it enters into the gap between the pin attached to the rotating disc and the fixed disc by centrifugal force, and it can be pulverized into fine powder by the interaction of impact and repulsion by the pin. Is. In the third pulverization step, the above-mentioned pin mill pulverizes the particles into particles having a size of about 60 μm. Of course, the crushing device is not limited to the above-described pin mill, and other fine crushing device having the same function, such as a ball mill or a stone mill, may be used. In the crushing process as described above, the recovered wood waste material is divided into three stages, and the pulverization is efficiently performed in stages.

Next, the waste material mixed resin obtained from the resin waste material and obtained by mixing the thermoplastic resin, the thermosetting resin and the impurities is pulverized. As the resin waste material, for example, plastic waste according to the container and packaging recycling method is used. Plastic waste includes plastic bottles, acrylic resin containing aluminum hydroxide such as artificial marble, reinforced plastics (FRP) reinforced with glass fiber, nylon, and paper, cloth, aluminum foil in the above resins. There are many examples. The thermoplastic resin is, for example, a tray recovered after being used for packaging food or the like, a polypropylene packaging member such as a food container, or a crushed polypropylene end material generated when the polypropylene packaging member is formed. . The composition of polypropylene packaging material is mainly polypropylene 75%, talc 20%, calcium carbonate 5
%, Where calcium carbonate is added to prevent the expansion and contraction of the polypropylene packaging member due to temperature changes and to stabilize the shape. Then, a waste material mixed resin obtained from the resin waste material and obtained by mixing a thermoplastic resin, a thermosetting resin, and impurities is roughly crushed to 20 mm or less by using, for example, a hammer mill to obtain a waste material mixed resin coarsely pulverized product. obtain. Further, the polypropylene packaging member as described above is crushed using, for example, a hammer mill to obtain crushed powder of thermoplastic resin.

Next, in the kneading step, the wood waste material crushed powder obtained in the crushing step, the waste material mixed resin coarsely crushed to 20 mm or less, and the crushed thermoplastic resin are uniformly distributed. Kneading and molding as described above to produce the first wood flour-containing compound. Here, the waste material mixed resin is contained in an amount of 5 to 20 wt%, the thermoplastic resin is included in an amount of 25 to 40 wt%, and the wood waste material pulverized powder is contained in an amount of 10 to 10 with respect to the entire molded product.
The compounding amount is adjusted so that the content is 55 wt%.

Next, in the molding step, the first wood powder-containing compound is molded into a desired shape by an extruder or an injection molding machine by applying a predetermined temperature and pressure. In this molding step, the molding temperature is set to 160 to 220 ° C., and molding is performed at this molding temperature. Here, the molding temperature in the molding step is set to 160 to 220 ° C. The reason is that if the temperature is lower than 160 ° C., the waste material mixed resin coarsely pulverized material and the thermoplastic resin are not sufficiently softened, and it is difficult to uniformly knead with the wood waste material pulverized powder. Also, at 220 ° C. or higher, the pulverized powder of wood waste material causes changes such as carbonization due to heat. Since the molding temperature was set to 160 to 220 ° C in this manner, the wood waste material crushed powder obtained in the crushing step was not changed by heat in the molding step, and the waste material mixed resin coarsely crushed product and the thermoplastic resin were sufficiently mixed. It can be melted and softened, and can be uniformly kneaded with the pulverized powder of wood waste material, whereby a wood-like molded product can be easily and reliably obtained.

Since the wood-like molded article is usually subjected to a surface treatment, an example of this surface treatment will be described below. First, in the embossing process, an embossing device equipped with a rotary shaft and a cylindrical embossing roller rotatable about the rotary shaft is used to press the wood-like molded product from above while embossing it. By rotating the roller, a large number of grooves are formed on the surface of the wood-like molded product. Then, in the hairline processing step, a large number of scratches are formed on the surface of the wood-like molded product by sanding paper. Next, in the coloring step, coating of a colored paint or wiping stain treatment is performed. The wiping stain treatment is a treatment in which a paint is applied to the surface of a wood-like molded product, and then wiped off before it is dried to color only the groove formed by the embossing.

After the coloring process is completed, a drying process is started to dry the surface of the wood-like molded article to which the coloring paint is applied.
Then, in the polishing step, the surface of the wood-like molded article that has been subjected to the coloring processing is subjected to polishing processing. That is, a wood-like molded product is ground by using a polishing device while pushing out a wood-like molded product along the rotation of a polishing roller of the polishing device. Further, after finishing the polishing process, the process proceeds to the coating process. This coating process is divided into an intermediate coating work process and a top coating work process. In the intermediate coating work process, the color sanding sealer is applied to the entire surface of the wood-like molded product. If necessary, a UV coat may be applied before and / or after the intermediate coating. Then, in the top coating operation step, a top coat is applied to the surface of the wood-like molded product, and a UV coat is applied onto the top coat to cure the top coat.

According to the first embodiment of the present invention, the waste wood mixed resin is roughly crushed to 20 mm or less, and then the crushed thermoplastic resin and the wood waste wood crushed powder are kneaded and molded to form the first wood. Since a powder-containing compound is produced and molded into a required shape, each of the waste material mixed resin coarsely pulverized material, the thermoplastic resin, and the wood waste material pulverized powder becomes a uniformly mixed molded article,
By melting such a first wood powder-containing compound and molding it into a desired shape, a wood-like molded product can be easily obtained. Further, since it becomes possible to include 10 to 55 wt% of wood waste material pulverized powder in the wood-like molded product, it is possible to give a feel and texture closer to that of real wood, and the waste material mixed resin is 5 to 20 wt% and is thermoplastic. Resin is 2
By including 5 to 40 wt%, the amount of waste material used increases, and the reuse rate of waste material can be improved. In addition, since food packaging members containing polypropylene used for obtaining the thermoplastic resin are often collected collectively with the same composition, their properties are easy to understand and they are easy to reuse. Furthermore, after the molding process, since the wood-like molded product was subjected to a surface treatment, the resin on the surface was scraped off, the pulverized powder of wood waste material was exposed on the surface, and the texture can be made closer to that of real wood. , Can be made to look like real wood visually.

Next, second to fifth embodiments will be described. In addition, in 2nd-5th embodiment, a different point from 1st Embodiment is demonstrated, and the description is abbreviate | omitted about the same part. As shown in FIG. 2, in the second embodiment, first, the wood waste material is crushed by the above-described crushing process to obtain wood waste material crushed powder. And the resin waste is
For example, a hammer mill or the like is used to roughly pulverize to 20 mm or less to make a waste material mixed resin coarsely pulverized material, and the waste material mixed resin coarsely pulverized material is fused by self-heating under high pressure using an extruder to be solidified, Solid waste material mixed resin. Further, this waste material mixed resin solidified product is crushed to obtain a solidified product crushed powder. Next, the solidified pulverized powder, the pulverized thermoplastic resin, and the wood waste pulverized powder are kneaded and molded in a kneading step to produce a second wood powder-containing compound.
Then, the second wood powder-containing compound is melted in a molding step and molded into a desired shape by an extrusion molding machine or an injection molding machine.

According to the second embodiment of the present invention, the waste material mixed resin is roughly pulverized to 20 mm or less, then fused and solidified, further pulverized, and then the pulverized thermoplastic resin and wood Since the second wood-containing compound is manufactured by kneading and molding with the waste wood crushed powder and molding it into the required shape, the waste wood mixed resin coarsely crushed product, the thermoplastic resin, and the wood waste crushed powder are uniformly mixed. Thus, a wood-like molded product can be easily obtained by melting and molding the second wood powder-containing compound into a desired shape. Further, since the waste material mixed resin is made into solidified pulverized powder and kneaded and molded to produce the second wood powder-containing compound, the thermosetting resin, impurities, heat The plastic resin can be mixed more evenly without being separated, and the moldability is improved.

In the third embodiment, the first wood powder-containing compound of the first embodiment and the second compound of the second embodiment are used.
A wood flour-containing compound is produced. And
The first wood powder-containing compound and the second wood powder-containing compound are mixed and melted in a molding step and molded into a desired shape by an extrusion molding machine or an injection molding machine (not shown).

According to the third embodiment of the present invention, the first
The wood powder-containing compound and the second compound are each manufactured, mixed and melted, and molded into a desired shape. Therefore, the waste material mixed resin coarsely pulverized product, the thermoplastic resin, and the wood waste material pulverized powder are uniformly mixed. By mixing and melting the first wood powder-containing compound and the second wood powder-containing compound into a desired shape,
A wood-like molded product can be easily obtained.

As shown in FIG. 3, in the fourth embodiment, a wood waste material is crushed in a crushing process to obtain a wood waste material crushed powder. On the other hand, the waste material mixed resin obtained from the resin waste material is pulverized to 1 mm or less by using a hammer mill or the like to obtain a waste material mixed resin pulverized product.
Knead crushed thermoplastic resin and pulverized powder of wood waste
It is melted and molded into a desired shape by an extruder or an injection molding machine.

According to the fourth embodiment of the present invention, the waste material mixed resin is crushed to 1 mm or less, and then the crushed thermoplastic resin and the wood waste material crushed powder are kneaded and melted to obtain the required material. Since it is molded into a shape, the waste material mixed resin is more finely crushed than in the first to third embodiments,
The pulverized waste material mixed resin pulverized product, the thermoplastic resin, and the wood waste material pulverized powder are evenly mixed. Moreover, for example, it can be easily manufactured by extrusion molding having a hollow shape.

As shown in FIG. 4, in the fifth embodiment, the wood waste material is crushed by a crushing process to obtain wood waste material crushed powder. On the other hand, the waste material mixed resin obtained from the resin waste material is crushed to, for example, 20 mm or less by using a hammer mill or the like to obtain a waste material mixed resin coarsely pulverized material, and the waste material mixed resin waste material coarsely pulverized material is subjected to high pressure using an extruder. It is fused below to be solidified to be a waste material mixed resin solidified product. Further, this waste material mixed resin solidified product is crushed to obtain a solidified product crushed powder. Next, the solidified pulverized powder, the pulverized thermoplastic resin, and the wood waste pulverized powder are kneaded and melted and molded into a desired shape by an extrusion molding machine or an injection molding machine.

According to the fifth embodiment of the present invention, the waste material mixed resin solidified product is crushed to 1 mm or less, and then the crushed thermoplastic resin and the wood waste material crushed powder are kneaded and melted to obtain the required material. Since it is molded into a shape, the waste material mixed resin is more finely crushed than in the first to third embodiments,
The pulverized waste material mixed resin pulverized product, the thermoplastic resin, and the wood waste material pulverized powder are evenly mixed. Moreover, for example, it can be easily manufactured by extrusion molding having a hollow shape. Further, since the waste material mixed resin solidified product is roughly crushed to 20 mm or less of the waste material mixed resin and then fused and solidified, a thermosetting resin, as compared with the fourth embodiment, The impurities and the thermoplastic resin can be uniformly mixed without being separated, and the moldability is improved.

In the second to fifth embodiments of the present invention, the description after the molding step is omitted, but as in the first embodiment, the wood-like molded product is embossed and hairline processed. Process, coloring process, drying process, polishing process,
Perform the coating process and other surface treatment. Further, the wood-like molded products according to the second to fifth embodiments of the present invention contain 5 to 20 wt% of the waste material mixed resin with respect to the entire molded product,
It is manufactured by adjusting the compounding amount such that the thermoplastic resin is contained in an amount of 25 to 40 wt% and the wood waste pulverized powder is included in an amount of 10 to 55 wt%.

The extruder used in the embodiment of the present invention may be a uniaxial extruder or a biaxial extruder.

[0040]

According to the invention of claim 1, waste material mixed resin
Is roughly crushed to 20 mm or less, and then fused and solidified.
Shaped, further crushed, thermoplastic resin and wood waste powder
Manufactures a second wood powder-containing compound by kneading and molding with crushed powder
Since it is molded into the required shape, each crushed powder is uniform
Into a molded product that is mixed with
It is easy to manufacture wood-like molded products from the compound.
Can improve the recycling rate of waste materials.
It In addition, the waste material mixed resin is made into pulverized powder of solidified matter.
To knead and mold to produce the second wood flour-containing compound
Therefore, compared to the first wood flour-containing compound of claim 3,
Mix each powder more evenly without separating
It is possible to bring the molded product into a broken state and to improve the moldability.

[0041]

According to the second aspect of the present invention, the first wood powder-containing compound and the second wood powder-containing compound are produced, respectively, and are mixed and melted to be molded into a desired shape. A crushed powder is uniformly mixed into a molded product, and a wood-like molded product can be easily manufactured from the first wood powder-containing compound and the second wood powder-containing compound, thus improving the recycling rate of waste materials. Can be made.

[0043]

According to the invention of claim 3 , the waste material mixed resin solidified product is crushed to 1 mm or less, and then the crushed thermoplastic resin and the wood waste material crushed powder are kneaded and melted into a desired shape. Since it is molded, the waste material mixed resin is more finely pulverized than in the first and second aspects, and the respective pulverized powders are more evenly mixed. Therefore, for example, even in extrusion molding having a hollow shape, a wood-like molded product can be easily manufactured. Further, since the waste material mixed resin solidified product is roughly crushed to 20 mm or less and then fused and solidified, the waste material mixed resin is solidified by crushing the waste material mixed resin . The pulverized powder can be uniformly mixed without being separated, and the moldability is improved.

According to the invention of claim 4 , not only the same effects as those of claims 1 to 3 can be obtained, but also the wood-like molded product can contain a large amount of wood waste wood pulverized powder. As a result, the texture and texture closer to that of real wood can be obtained. In addition, the amount of waste material used increases, and the reuse rate of waste material can be improved.

[Brief description of drawings]

FIG. 1 is a conceptual diagram showing a first embodiment of the present invention and showing a method for manufacturing a wood-like molded product.

FIG. 2 is a conceptual view showing a second embodiment of the present invention and showing a method for manufacturing a wood-like molded product.

FIG. 3 is a conceptual diagram showing a fourth embodiment of the present invention and showing a method for manufacturing a wood-like molded product.

FIG. 4 is a conceptual view showing a method for manufacturing a wood-like molded product, for illustrating the fifth embodiment of the present invention.

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI B29K 201: 00 B29K 201: 00 (72) Inventor Masao Odai 5-5-21 Higashisuna, Koto-ku, Tokyo (56) References JP-A-10-151629 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) B27N 1/00-9/00 B29B 13/10

Claims (4)

(57) [Claims] 1. A wood material containing a waste material mixed resin obtained from a resin waste material, in which a thermoplastic resin, a thermosetting resin and impurities are mixed, and a wood waste material crushed powder obtained by crushing a wood waste material. In the method for producing a molded article, the waste material mixed resin is roughly crushed to 20 mm or less to obtain a waste material mixed resin coarsely pulverized material, and the waste material mixed resin coarsely pulverized material is fused and solidified to form a waste material mixed resin solid matter. As a solidified material, the solidified material of the waste material mixed resin is crushed into a solidified material crushed powder, and the solidified material crushed powder, the crushed thermoplastic resin, and the woody waste material crushed powder are kneaded and molded to form a second tree. A method for producing a wood-like molded article, which comprises producing a powder-containing compound and melting the second wood powder-containing compound to form a desired shape. 2. A wood material comprising a waste material mixed resin obtained from a resin waste material and obtained by mixing a thermoplastic resin, a thermosetting resin and impurities, and a wood waste material crushed powder obtained by crushing the wood waste material. In the method for producing a molded article, the waste material mixed resin is roughly pulverized to 20 mm or less to obtain a waste material mixed resin coarsely pulverized product, the waste material mixed resin coarsely pulverized product, the pulverized thermoplastic resin, and the wood waste material. The first wood powder-containing compound is manufactured by kneading and molding the crushed powder, and the waste material mixed resin is roughly crushed to 20 mm or less to obtain a waste material mixed resin coarsely crushed product. And solidify it to form a waste material mixed resin solidified product, crush this waste material mixed resin solidified product to form a solidified product crushed powder, and this solidified product crushed powder, the crushed thermoplastic resin, and the wood waste material crushed product Kneading with powder -Molding to produce a second wood powder-containing compound, mixing and melting the first wood powder-containing compound and the second wood powder-containing compound, and molding the mixture into a desired shape. Manufacturing method. 3. A wood material containing a waste material mixed resin obtained from a resin waste material, in which a thermoplastic resin, a thermosetting resin and impurities are mixed, and a wood waste material crushed powder obtained by crushing the wood waste material. In the method for producing a molded article, the waste material mixed resin is roughly crushed to 20 mm or less to obtain a waste material mixed resin coarsely pulverized material, and the waste material mixed resin coarsely pulverized material is fused and solidified to form a waste material mixed resin solid matter. As a solidified material, the solidified material of the waste material mixed resin is crushed to 1 mm or less to obtain a crushed powder of the solidified material, and the crushed powder of the solidified material, the crushed thermoplastic resin, and the crushed powder of the wooden waste material are kneaded and melted. A method for producing a wood-like molded article, which is characterized by molding into a desired shape. 4. The method of claim 1 woody method for producing a molded article according to any one of 3, the waste material mixed resin for the entire molded product, 5 to 20 wt%, the thermoplastic resin is 25~40wt %, The pulverized powder of wood waste is 10 to 5
A method for producing a wood-like molded article, characterized in that the content of each is 5 wt%.