KR100917375B1 - Method for manufacturing synthetic wood with photoluminescent display - Google Patents

Abstract

The present invention relates to a synthetic wood, and more particularly to a synthetic wood having a photoluminescent display using wood powder and a method of manufacturing the same. To this end, 50 to 60 parts by weight of wood powder, 30 to 50 parts by weight of olefin resin, 1 to 5 parts by weight of binder, 2 to 5 parts by weight of the master batch to prepare a first material 110; Melting the first material (110) and preparing for extrusion in the first extruder (100), melting the photoluminescent master batch (210) and preparing for extrusion in the second extruder (200); Extruding the molten photoluminescent master batch 210 with the molten first material 110 passing through the mold 50 simultaneously through the mold 50; And the first material 100 forms the synthetic wood 300, and the photoluminescent master batch 210 is cooled while forming the photoluminescent display. Is provided.

Description

Method for manufacturing synthetic wood with a photoluminescent display {Method for manufacturing Synthetic wood with noctilucent display part}

The present invention relates to a synthetic wood, and more particularly to a method for producing a synthetic wood having a photoluminescent display using wood powder.

Generally, construction materials for walking are constructed in hiking trails, trails, pedestrian paths or yards of detached houses. Such building materials are often used for stone, wood, concrete, brick, etc. However, such building materials are difficult to mass-produce, and in the case of stone or wood, it is difficult to secure materials for mass production. In addition, since the external shape is not constant, separate dimension processing was required for standardization.

In particular, when the stairs are constructed with such building materials, the safety of pedestrians is lowered at night because they are difficult to see, and in the case of the elderly or children, they are often injured by small safety accidents. Therefore, conventionally, a separate mark was attached to the corner portion of the stairs. However, they were often contaminated or damaged and could not function properly, and required additional construction.

Accordingly, the present invention has been made to solve the above problems, an object of the present invention is to provide a method for producing a composite wood having a photoluminescent display portion to produce a composite wood having a photoluminescent display unit at a time. .

Still another object of the present invention is to provide a method of manufacturing a synthetic wood having a photoluminescent display portion that enhances walking safety by using it for hiking trails, trails, pedestrian walks, or stairs, so that the stairs can be easily seen even at night or in rainy weather. .

The object of the present invention as described above,

Preparing a first material 110 by mixing 50 to 60 parts by weight of wood powder, 30 to 50 parts by weight of olefin resin, 1 to 5 parts by weight of binder, and 2 to 5 parts by weight of master etched material;

Melting the first material (110) and preparing for extrusion in the first extruder (100), melting the photoluminescent master batch (210) and preparing for extrusion in the second extruder (200);

Extruding the molten photoluminescent master batch 210 with the molten first material 110 passing through the mold 50 simultaneously through the mold 50; And

The first material 100 forms a synthetic timber 300, and the photoluminescent master batch 210 is cooled while forming the photoluminescent display portion; by the method of manufacturing a composite timber having a photoluminescent display portion, characterized in that it comprises a. Can be achieved.

In addition, it is preferable that the synthetic wood having the photoluminescent display part manufactured by the above manufacturing method is plate-shaped, and the uneven surface 310 is formed on at least one surface.

In addition, the synthetic wood 300 may have a plate shape, and the photoluminescent display 330 may be provided at an edge region of the plate shape.

In addition, the synthetic wood is plate-like, it is preferable that the embedded photoluminescent display unit 340 is further placed between two adjacent synthetic wood (300).

Therefore, according to the embodiment of the present invention as described above, it is possible to produce a composite wood having a photoluminescent display unit at one time. Therefore, productivity is high, post-processing is unnecessary, mass production is possible, and the wood-like feeling can be produced.

In addition, the use of hiking trails, trails, pedestrian walks or stairs can increase walking safety and make it easier to see stairs without slipping at night or in rainy weather. Therefore, it can be used as a pedestrian path, a staircase, etc. in a hiking trail, a tourist path, an ecological park, a trail, a place where safety is required for the passage of an elderly soldier in a military unit, a direction sign in a mountain, a tourist amusement track, a coastal patrol, and the like. In addition, it can be installed in facilities, beaches, etc.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it will be readily apparent to those skilled in the art that various other modifications and variations can be made without departing from the spirit and scope of the invention. It is obvious that all modifications fall within the scope of the appended claims.

(Production Method of Example)

The invention will now be described in detail with reference to the accompanying drawings, in which preferred embodiments are shown. 4 is a partial cross-sectional view of an extruder for extruding synthetic wood according to the present invention. As shown in FIG. 4, the first material 110 is prepared by mixing 50 to 70 parts by weight of wood powder, 30 to 50 parts by weight of olefin resin, 1 to 5 parts by weight of binder, and 2 to 5 parts by weight of master etch.

Wood flour (aka sawdust) is a powder of tree trunks, branches, roots, berries, etc. may be used to grind waste wood, or may use sawdust emitted from lumber. These wood meals are used to make synthetic woods exhibit touch and character with wood. When the wood powder is less than 50 parts by weight, the finished synthetic wood does not show the characteristics of the wood (looks like a tree), and feels like a plastic mass. In addition, if more than 70 parts by weight, the ratio of wood powder is high, the bonding strength is lowered, there is a weak durability. More preferably, 50 to 60 parts by weight is suitable, and 55 parts by weight is used in this embodiment.

The olefin resin is typically PP (polypropylene) or PE (polyethylene), and is blended in a proportion of 30 to 50 parts by weight. If it is less than 30 parts by weight, the extrudability is lowered, and if it is higher than 50 parts by weight, the characteristics of the wood are not easily seen. 40 parts by weight was used in this example.

Coupling agent is used 1 to 5 parts by weight. If the binder is too small, the bonding force between the materials is small, the strength of the finished composite wood after extrusion is lowered and cracking is likely to occur. In addition, too much binder has the disadvantage of increasing the manufacturing cost. Examples of such a binder include polyvinyl acetate, rubber latex, urea-formaldehyde, polyvinyl chloride dispersion, water-soluble carboxymethyl cellulose, and the like. In this example, about 2 parts by weight of the binder was used.

Master batches are used in 2 to 5 parts by weight. Master Batch is a small particle injection of synthetic resin materials such as LDPE (low density polyethylene), PP, PET, PC, PVC, nylon, and the like. Since the master betches improve the extrudability and affect the extrusion quality, they can be appropriately adjusted in consideration of the capacity, speed, and the like of the extruder. In this example, 3 parts by weight of the master batch was used. If necessary, the master dye may be mixed with a desired dye (wood color, copper color, etc.), or a separate dye may be added.

The first material 110 is mixed according to the above-described ratio and then introduced into the first extruder 100 to prepare an extrusion. At the same time, the photoluminescent master batch 210 is introduced into the second extruder 200 to prepare an extrusion.

The phosphorescent master batch 210 is formed by mixing a phosphorescent pigment and a plastic resin into a master batch. Plastic resin uses synthetic resin materials such as LDPE (low density polyethylene), PP, PET, PC, PVC, nylon and the like. Photoluminescent pigments are inorganic minerals and stable crystals. The main component of the photoluminescent pigment is an inorganic mineral of alkaline aluminate. Since it is an extremely stable crystal, it has excellent heat resistance and cold resistance and preserves photoluminescence even at a high temperature of 500 ° C. Phosphorescence and luminescence also preserve their permanent life. The brightness of the photoluminescent pigment is superior to that of the conventional ZnS system, and the afterglow time measured in the dark room was 8 to 15 hours or more.

The photoluminescent master batch 210 according to the present invention has the property of absorbing light quickly and maintaining strong brightness and long afterglow. Specific photoluminescent performance is obtained by luminous light for 20 minutes under a 200 lux light source (based on the photoluminescent technology test standard). The initial luminance is 1000 to 1800 mcd / m ² , and the afterglow luminance is emitted for 10 to 10 mcd / m ² for more than 6 to 10 hours. Was measured.

Then, the first and second extruders 100 and 200 are simultaneously extruded while the molten first material 110 and the molten photoluminescent master batch 210 are simultaneously passed through the mold 50 to which the first and second extruders 100 and 200 are connected. That is, the extrusion cross section of the metal mold | die 50 is a plate-shaped rectangle. The molten photoluminescent master batch 210 is in contact with the first material 110 in the molten state, and passes through the mold 50 to be integrally cooled. Thus, the process is terminated while the first material 100 forms the synthetic wood 300, and the photoluminescent master batch 210 forms the photoluminescent display 330. Other subsequent processes may be followed by a water cooling process, an air cooling process, a cutting process, a printing process and the like similar to the prior art of the extrusion process.

(Configuration of Example)

Hereinafter will be described the specific configuration and construction of the synthetic wood as described above. 1 is a side view of a staircase provided with synthetic wood according to the present invention, FIG. 2 is an enlarged view of a portion A of FIG. 1, and FIG. 3 is an enlarged view of a portion B of FIG. 1. As shown in Figures 1 to 3, the extrusion cross section of the synthetic wood 300 is 145 × 25 mm, 145 × 30 mm, 145 × 35 mm and the like, the length is about 1 mm ~ 1.5 m as needed. Synthetic wood 300 has a plurality of grooves 310 is formed on the upper surface. The uneven groove 310 is integrally extruded by the mold 50 having the uneven groove on the extrusion section, to prevent slipping when walking. Therefore, the uneven groove 310 may be formed in the entire upper surface, or may be formed only around the upper surface.

The synthetic wood 300 is formed with a plurality of recesses (about 3 to about 5) 320. Obviously, this is also formed by a mold having a recess in the extrusion cross section. Inside the recess 320, the photoluminescent display 330 is positioned as co-extrusion. If necessary, one wide concave portion 320 may be formed, and the entire concave portion 320 may be filled with the photoluminescent display portion 330.

Hereinafter, the construction method will be described using the stairs as an example. First, as shown in FIG. 1, the stepped frame 60 is produced. Next, the synthetic wood 300 is sequentially constructed on the upper surface of the frame 60. Construction can be fixed using a "T" shaped bolt or the like using the recess 320 formed on the side. In addition, the embedded photoluminescent display unit 340 is sandwiched between two adjacent synthetic timbers 300.

As another embodiment, after the concave portion 320 having a predetermined shape is formed on the entire upper surface of the synthetic wood 300, a round photoluminescent bead (not shown) having a size of 2-3 mm may be inserted. At this time, the phosphorescent beads may be combined to express an arrow or a guide letter.

1 is a side view of a staircase in which synthetic wood is installed according to the present invention;

2 is an enlarged view of a portion A of FIG. 1;

3 is an enlarged view of a portion B of FIG. 1;

4 is a partial cross-sectional view of an extruder for extruding synthetic wood according to the present invention.

<Description of the symbols for the main parts of the drawings>

50: mold,

60: frame,

100: first extruder,

110: first material,

200: second extruder,

210: luminous master batch,

300: synthetic wood,

310: uneven surface,

320: concave,

330: photoluminescent display,

340: embedded photoluminescent display.

Claims (5)

Preparing a first material 110 by mixing 50 to 60 parts by weight of wood powder, 30 to 50 parts by weight of olefin resin, 1 to 5 parts by weight of binder, and 2 to 5 parts by weight of master etched material; Melting the first material (110) and preparing it for extrusion in a first extruder (100), melting the photoluminescent master batch (210) and preparing for extrusion in a second extruder (200); A mold 50 having a concave-convex surface and a concave portion on a long side of the rectangular extrusion section, and the molten photoluminescent master batch 210 with respect to the molten first material 110 passing through the mold 50 simultaneously forms the mold ( Integrally extruding while passing through the recess 320 of 50); And The first material 100 forms a synthetic timber 300, and the photoluminescent master batch 210 in the recess 320 is cooled while forming a photoluminescent display portion; Method of producing a synthetic wood having. delete delete delete delete

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