JPH10138212A - Artificial wood material and production method for forming grain and annual ring - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wood material and a product similar to a natural wood material, having a grain and annual ring pattern without attaching a sheet on the surface, having the grain pattern from the surface to the core so that the grain pattern can remain even if the surface is shaved off with a plane. SOLUTION: A plant fiber material 1 as the main material is mixed with white cement, seaweed, lime powders, calcium carbonate, borax, and the like as the auxiliary material 2 and a bonding agent so as to add the fire resistance. And further, a perfume of the forest is added so as to provide a natural appearance. The material is placed in hoppers 5, 6 of a horizontal screw 8 and a vertical screw 7, respectively. While pouring the main material 1, the grain annual ring pattern of the artificial natural wood material is applied.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing artificial wood having natural wood-like and wood-grained annual ring patterns.

[0002]

2. Description of the Related Art In recent years, synthetic wood in which wood, sawdust, rice hulls and the like are manufactured from a material of waste plastic resin is commercially available. In addition, there is a flood of synthetic timber building materials, which are made by attaching a wood grain sheet to the surface of natural timber of the South Seas and showing it as natural wood. Recently, new wood-based materials have been put into practical use.
PC (abbreviation of Wood PIastic Polymer Conbination: Wood and plastic), which is a composite of natural polymer structure wood and synthetic polymer, which gives the properties of wood and plastic (resin) to reduce the disadvantages of wood Although it has been improved, for example, a resin solution containing a vinyl-based monomer, oligomer, or prepolymer as a main component is used. Has been shortened.

[0003]

The above-mentioned synthetic wood is mainly made of waste plastic, waste plastic bags, and waste vinyl chloride (PVC). Problems cause social problems. In addition, it is considered to be a product that is vulnerable to heat because it is mainly made of resin.

The above-mentioned plastic wood and synthetic wood for making it look like a natural product form a wood-grained annual ring pattern only by sticking a wood-grained annual ring-shaped sheet to the main body. There is a problem in that the synthetic wood fabric appears, and the aesthetics of the grain are lost, losing its purpose.

[0005] In order to obtain a wood-ring pattern of wood, auxiliary resin components, a foaming agent, a stabilizer, a lubricating oil, and the like are mixed with vinyl chloride (PVC) resin as a main raw material, and the mixture is heated and pressurized with a single screw and extruded. Although a method for producing a wood grain pattern is also known, it is considered that the reality is that the resin is agglomerated after use and the production is carried out in consideration of environmental pollution without consideration.

[0006] In addition, the method of producing a wood-grained annual ring pattern by heating and pressing with a single screw and extruding the wood-grained annual ring pattern does not have the tactile sensation of natural wood because the grain formed on the surface is not a uniform pattern, and there is a great difference in the pattern. There is also a problem that the nail is not stopped because the main body is weak when it is driven, and a saw is formed when mechanically processed, thereby deteriorating the beauty.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks of the conventional synthetic wood and the method for producing the same, and has a wood and wood grain ring pattern and a sheet attached to the surface. It is an object of the present invention to provide a method for manufacturing a product similar to natural wood, even if a grain is passed through from the surface to the core and the surface is cut off with a plane without being attached.

Accordingly, the present invention uses natural plant fibers which are stable and can be decomposed in the natural world without using harmful synthetic resins and using a binder and a flame retardant to mix wood and wood-grained annual rings with fragrance. At present, there is no known production method, and the company intends to provide the production in the future and to contribute to society.

Conventional processed synthetic wood has been made from plastic as a main raw material, but the method for producing artificial wood according to the present invention comprises pulverizing natural plant fiber, paper waste, sawdust, okara, rice husk, etc. as the main raw material. Lime powder, calcium carbonate, white cement,
The first step is to mix borax, seaweed, lignin resin, etc. with natural woody oil fragrance, add the auxiliary raw material to the main raw material pulverized to 10 to 50 mesh, adjust it into a hopper, pour it into a model screw, and extrude it. It is sent to a molding machine to make a bone-and-meat part, but before the exit, a fine powder raw material sent to a 100-200 mesh sent from a vertical hopper by a vertical screw from above is extruded onto a model screw and put on a model screw. The second step is characterized in that the annual rings of the wind flow to form cell parts of the artificial wood.

[0010] The artificial wood of the present invention is characterized by being produced by the above method and having a wood-grained annual ring pattern. The mixing ratio of each raw material, auxiliary raw material, binder and the like of the present invention can be appropriately changed according to a desired grain pattern. For example, as the raw material, a main raw material (polymerization degree 700
900) Paper fibers, sawdust, okara, chaff, rice hulls, seaweed, and other plant fibers are mixed with auxiliary materials and lime powder as a binder, calcium carbonate, white cement, borax, seaweed, and lignin resin.

According to the present invention, there is provided a cylinder having a screw therein, which is characterized by producing a wood-ring pattern according to claim 1, into which a powder of a main raw material which becomes cells of wood bone and meat is poured. A supply port is provided at the upper front of the exit in the traveling direction of the screw to supply fine powder to be a grain of wood from a hopper, and the combined powder is extruded in the traveling direction while mixing. Shown in This cylinder and screw are believed to have been developed for the present invention and not to date.

The inside of the cylinder (including the outside with a jacket) of each extruded part of the model and the vertical screw of the present invention is as follows:
The direction in which the raw material is extruded and pressed by the horizontal screw and the one that has been extruded by the vertical screw from the upper part just before the exit go together, so that a certain artificial wood and wood grain annual ring pattern are formed Sent. Further, the outer surface of each cylinder is set to a temperature range of 150 to 250 ° C. by an electric heater, and is configured to go from a low temperature to a high temperature toward a mold.

In the method for producing artificial wood according to the present invention, since the wood grain ring pattern runs from the surface to the core, the wood grain ring pattern is lost even if the surface is broken, scratched, or processed on occasion. In addition, since the strength is stronger than that of natural wood, it is possible to provide artificial wood having a natural touch and texture, which is rich in natural truth.

In the artificial wood production method of the present invention, a color additive such as a pigment may be used while changing the composition of the raw materials so as to be closest to a natural product. In particular, the type and color of the wood are changed. By making woods such as cedar, cypress, pine, paulownia, etc., which have different colors of wood, the oil is extracted from the wood, such as cedar, cypress, pine, paulownia, etc. It is also possible to produce a product that more closely resembles the wood of natural wood by mixing it with the main raw materials to produce the incense of the forest.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention relates to a method for preparing a plant raw material such as paper waste, sawdust and okara, and powder of rice husk, etc., and mixing them at a specific ratio. After being introduced, extrusion molding is performed with a horizontal vertical screw.
In such an extruder molding process, the mixed material in the extruder is kneaded in a specific gravity and the kneading amount is determined. The extruded material is extruded and introduced into a mold, and as a result, natural wood and artificial wood in which tree-rings are visible are formed. become.

The method for producing artificial wood according to the present invention will be described. First, the first step is to adjust the powders of the main raw material and the auxiliary raw material. For example, the following materials are mixed and the amount of the horizontal screw is 1 to 50 mesh, and the amount of the vertical screw is 100 to 200 mesh. Produce a powder mixture of 1) Main raw material = 60-85% of plant fiber powder such as paper waste, sawdust, okara, rice hull, etc. 2) Auxiliary raw material and binder = lime powder -1.5, calcium carbonate -1.5-10, white cement- 1.5-10, borax -1.5-10, urea resin -0.5-0.8, lignin resin -0.5-0.8, casein / seaweed-slightly obtained by mixing the above raw materials The powder mixture obtained is pulverized as a raw material for a vertical screw, and the raw material for a horizontal screw is a coarse powder, but the mixing ratio and amount are adjusted only with the horizontal powder, regardless of the horizontal vertical screw. Better.

Referring to FIG. 1, the present invention will be described.
Then, the bone portion 4 of the coarse powdered horizontal screw wood is put into the blended mixture in the vertical hopper 5 and the horizontal hopper 6, and is extruded and kneaded 9 with the respective screws 7.8 to form the mold forming machine 1.
0 to produce a product (like) 11 and cool it with a cooler 12 to produce a product 13
And

Referring to FIG. 2, the present invention will be described.
It has. Screw 8 in horizontal cylinder 15
The main raw material hopper 6 is provided with a raw material to be a flesh portion, and the vertical hopper 5 is provided with a cylinder 7 having a built-in screw. The hopper 5 is provided with an auxiliary raw material for wood graining. Although it is fed in the traveling direction while being pressurized by rotation, it is sent to the mold stand 9 together with the raw material of the bone flesh sent by the horizontal screw 8 just before the exit of the horizontal cylinder 15. An electric heater was provided on the surface of each of the cylinders, and the temperature was set to 120 to 200 ° C. so as to heat and raise the temperature toward the mold table in the traveling direction.

[0019]

【Example】

[Example 1] 10 kg of sawdust was used as the main raw material.
Two kinds of powders of 0 mesh and 10 to 50 mesh were used. In addition, as auxiliary materials and binders, lime powder, white cement, borax, urea resin, lignin, casein, seaweed, pigment (pigment), auxiliaries and more auxiliary materials are mixed with oil,
The mixture is divided into 7 to 3, and 70% of the mixture is mixed with 10 to 50 mesh wood powder and put into the main raw material hopper. On the other hand, for 30%, auxiliary materials of 100 mesh or more are mixed well and put into a vertical hopper. Then, when the operation is started, each product is cooled by a screw through an extrusion die to produce a product. In addition, the surface of the cylinder was kept warm.
The temperature was adjusted to 20 ° C, 130 ° C, 150 ° C, 180 ° C, and 200 ° C, and the mold temperature was 230 ° C. Mold cross section: round shape 60
mm and a thickness of 20 mm.

The main raw material sawdust and okara of the above-mentioned Example 1
The method of mixing the paper waste is the same as in Example 1, except that the length of the mold is 60 mm, the height is 20 mm, and the thickness is 20 mm.
I used

Further, as shown in FIG. 3, it has a molded wood grain pattern, but has a thick surface. Even when the surface was cut with a plane, the grain was still seen in the cut portion, and the decorative aesthetic was not affected. In addition, when wood was used as the main ingredient and wood flour was mixed with the fragrance cypress oil to perform a series of treatments, the artificial wood felt cypress incense and felt like natural cypress wood.
In addition, addition of a pigment (pigment) to artificial wood provided a tactile sensation as a natural product.

[0022]

According to the method of the present invention for producing artificial wood and wood grain rings, the artificial grain has a thick wood grain pattern, is hard to lose the wood grain due to surface destruction or surface processing, and has a natural touch and texture. Can be provided for wood.

According to the present invention, artificial wood is kneaded with natural fragrance to be much closer to natural wood, and naturally pressurized to have strength, smooth surface, real taste, and flame retardancy. However, the texture is almost the same as natural wood, and the product is not considered to have been artificially completed.

[Brief description of the drawings]

FIG. 1 is a blending system of a main raw material and an auxiliary raw material according to the present invention.

FIG. 2 is an enlarged configuration diagram of a die mounting portion of a horizontal screw and a vertical screw extruder used in the present invention.

FIG. 3 is a sectional view of a grain pattern of a product.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main raw material 2 Auxiliary raw material 3 Fine powder 4 Powder 5 Fine powder hopper 6 Powder hopper 7 Vertical screw 8 Horizontal screw 9 Kneader 10 Mold 11 Product (like) 12 Cooling 13 Product 14 Extruder 15 Horizontal cylinder

Claims (9)

[Claims] 1. The main raw materials are vegetable paper, sawdust, rice husk,
Okara and the like are in the form of 1-50 mesh powder and 100-
Manufactured into a fine powder of 200 mesh, kneaded with a binder and fragrance, extruded with a special screw, passed through the annual ring of natural wood from the surface to the core, incense and wood grain of natural wood The eye is manufactured artificially. 2. The main raw materials such as paper waste, sawdust, okara, rice fiber husk and other plant fiber powders, auxiliary raw materials and binders, lime powder, calcium carbonate, white cement, borax powder, seaweed, and natural ingredients as fragrance materials. Cedar oil, pine oil, tung oil extracted from wood,
The method according to claim 1, wherein hinoki oil is added and mixed. 3. The mixture is pressure-extruded while heating a special screw with a cover. The method according to claim 1. 4. A special screw is provided with a hopper for auxiliary material at an upper portion in front of an exit in a direction of a single model screw,
A vertical screw and motor are provided in the hopper,
A mechanism in which the auxiliary raw material flows in the same direction as the model screw, agitating the flow of the main raw material sent by the model screw while rotating and pressurizing, kneading fibrous fine powders at the same time, and putting it into wood cells. 3. The production method according to 2. 5. A single screw is crushed by a hopper portion of a model screw and a hopper portion of a vertical screw as shown in FIG. By mixing and extruding each of the powdered claim 2 into a natural wood, it becomes a tree-ring-shaped pattern on the natural wood, and when the powder of 1 to 50 mesh is flowed to the model screw toward the flesh portion of the wood, A method for producing artificial wood and a wood-ring pattern according to claim 1. 6. An artificial wood made by mixing the main raw material, the auxiliary raw material and the binder according to claim 2, which has a flame-retardant physical property containing lime powder, calcium carbonate, white cement, borax and seaweed. Wood production method. 7. A method for producing artificial wood, wherein artificial wood produced by mixing the main raw material, auxiliary raw material and binder according to claim 2 is hardly soluble in humans and does not absorb moisture. 8. A method for producing artificial wood having natural wood incense by mixing natural wood perfume with the main raw material, auxiliary raw material and binder described in claim 8. 9. The method for producing artificial wood and artificial wood with a wood-grained annual ring pattern according to claim 1, wherein the artificial wood is manufactured by the method for producing artificial wood with a wood-grained annual ring pattern according to claim 1. Method.