JPH06506163A - Parquet floor structure and its manufacturing method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Parquet floor structure and its manufacturing method In the present invention, the direction of the wood grain constituting the parquet surface layer is perpendicular to the parquet surface or It concerns a parquet floor structure with acute angles.

The present invention also relates to a method for manufacturing a booklet, and this method includes the following operations. do, i.e. Make sure that the grain direction is perpendicular or acute to the surface of the parquet, and The process involves placing the surface layer of wood made of wooden blocks and polishing the surface to make it smooth. work and This is a lacquer finishing process using parquet lacquer.

The use of longitudinally grained wood as the surface layer provides various advantages. grain Abrasion resistance, hardness and compressive strength in the direction of clearly superior to the corresponding figures.

However, the use of longitudinally grained wood as a parquet surface layer is also insufficient. It is associated with a variety of problems that have not been resolved in recent times, and this is why commercial success has been limited to date. This is the reason why it was not done. One problem is that the wood grows vertically as a result of moisture changes. This can cause drying cracks in grained wood and dimensional changes after finishing (dimensional fluctuations). Ru. Another issue is the porosity of the finished wood surface. Porous surfaces When lacquer for gardening trees (e.g. UV-curable urethane lacquer) is applied conventionally. In some cases, thin lacquer films tear easily under normal use. This fi The wood cracks in spots and moisture penetrates into the wood through the cracks. The surface turns black. In traditional horizontally grained parquet, it is not absorbed by the wood. , a base layer that forms a film-like seal between the wood and the coating lacquer layer. A car is used. The overall consumption of expensive parquet lacquer is approximately 30 Relatively low (maintains) at 40g10I'. Apply a parquet lacquer, such as applying a lacquer seal directly, or The technique of applying varnish does not, in this invention, cause an unfavorable and irresistible surface texture. There will be.

The object of the present invention is to provide a parquet floor structure and a method for its production, whereby vertical The good abrasion resistance and hardness of directional grained wood can also be substantially improved. provides effective additional protection against moisture penetration and residual moisture induced provides effective restraint against the forces of movement and at the same time prevents the use of expensive parquet lacquer or The main advantage is that the amount of varnish can be kept the same as before.

This object can be achieved by the parquet structure according to appended claim l. This is achieved by applying the method according to claim 8 for manufacturing.

The parquet floor structure of the present invention will be explained in more detail with reference to the accompanying drawings. Attached drawing In, FIG. 1 is a schematic representation of a cut parquet element having the structure of the invention.

Figure 2 shows the use of hexagonal wooden blocks for the wooden layer on the surface of the parquet. be.

FIG. 3 is a sectional view showing the sandwich structure of the parquet.

Figure 4 is an enlarged view showing a longitudinal cross-section of the wood layer on the surface of the parquet where the grain extends in the longitudinal direction. Ru.

The manufacture of the parquet floor structure of the present invention is carried out as follows. polygonal long logs, Cut perpendicular to the wood grain or at an acute angle to the wood grain and cut to an appropriate thickness, e.g. Make a block with a diameter of 14 mm. These wooden blocks, an example of a hexagonal shape, are shown in Figure 2. For example, water-soluble polyalcohols such as polyethylene glycol (PEG) impregnate the wooden block with water-soluble polyhydric alcohol, and then It replaces the water in the cell walls in the cell wall. Heat treatment can increase absorption. In this process, wooden blocks are heated in a microwave oven and diluted. The untreated fluidized heated PEG is applied as a film to a wooden block, and the block is The vacuum of the wood facilitates the absorption of PEG into the tree. The purpose of this is to The aim is to replace a large amount of cell wall water with a water-soluble filler. by this, Post-movement (variation in dimensions) of the wood due to dry cracking and moisture fluctuations is prevented. with moisture The induced wood movement is determined by the amount of water in the cell wall and by changes in the cell wall. It is known to result from expansion and contraction caused by

Thus, a wooden block impregnated with a water-soluble polyhydric alcohol (e.g. PEG) , a temperature of 50°C to 80°C for sufficient penetration and diffusion of the polyhydric alcohol. The block is then stored for 1 to 3 days and then dried, thus removing water. When removed, the polyhydric alcohol concentrates. Polish the surface of the block and correct the external shape. Process to exact dimensions. The blocks are then glued to the parquet material, i.e. It is attached between two body layers 4. The attachment of the parquet element to the main body layer 4 is done using resin. Or wood adhesive 5 (for example, polyester resin or polyvinyl acetate adhesive) This is done by using adhesives (adhesives). The main body 4 is made of plywood with a thickness of 9 m, for example. Preferably. The main body 4 also has - or a plurality of reinforcing plastic layers. It's okay. The material is sawn into two pieces in the center of the wooden block l, and the resulting boards are placed in a bag. (but+oent) and polish the sawn surface. sawing and polishing After that, the surface layer l with wood grain in the vertical direction has a thickness of, for example, 3.0 m to 3.5 mm. have.

On the surface of the finished wooden parquet element, inside the grain of the wood and in the gaps between the grains An impregnating filling resin or varnish is applied. Impregnation with filling resin is basically is facilitated in the same manner as described above in connection with PEG impregnation. Thus , the board is preheated, and when cooled, the board releases the resin inside the grain of the wood and its Absorb to a sufficient depth into the gaps between. The amount of resin required depends on the porosity of the surface. 00g/m" or more, typically 100 to 300g/+++", preferably 1 50-200g/I11! Despite the fact that the book production cost is affordable The filling resin or varnish used is an inexpensive polyester Preferably, it is a resin. (The filling resin or varnish is locally Impregnation up to a depth of 0.5 m, but in most of the surface areas to a depth of greater than 0.2 m . Thus, the thickness of the filled resin or varnish layer 2 depends on the porosity and absorption capacity of the wood. may vary, but typically remains within the ranges stated above. In this process, the purple Although it is preferred to use external radiation curable polyester resins, conventional additional heat activated It may also be an (accelerated) curing reaction. Made by filling resin or varnish 2 The layer substantially improves the abrasion resistance and hardness of the longitudinally grained wood.

Also, the surface filling layer becomes an additional barrier to moisture penetration, and at the same time Reinforcing the tissue against the forces exerted by residual moisture-induced movements.

Filling layer 2 allows the use of expensive parquet lacquers such as UV-curable polyurethane lacquers. The consumption of wood varnish is the same as or lower than that of traditional plank parquet (maintenance is low). typically between 20 g/m'' and 50 g/111''. Thus , the amount of filler resin or varnish to be impregnated into the wood is approximately 4 to 4 It becomes 5 times. In addition, the filling resin can be selected from the following options: acrylic resin, epoxy resin, etc. It may be one of resins, urea resins, and phenolic resins. tree specific Colorless and transparent polyester can fully highlight the color and natural beauty. Stell resin is preferred. If necessary, add titanium white or resin-soluble colorant. Any whitening pigment may be incorporated.

The method of the present invention can also be used to obtain high quality wood from soft grade wood. It can be used to make parquet. For example, regular oak parquet and In comparison, wood grains with longitudinal grains are twice as hard and several times more abrasion resistant. Tests were carried out on alder, which produces wood. Also, wear resistance and In order to produce parquet comparable to the current quality of parquet in terms of hardness, Yamana Aspen can also be used. The same thing can be said for other plants such as poplars. It can also be applied to Narashi's friends. Indeed, one discovery and advantage of the present invention is that In particular, it concerns the use of soft-grade wood. Soft wood in the direction across the grain Because the compressive strength of wood of 300 mm is low, the grain structure can propagate in the direction across the grain. The force exerted by the parquet also remains low, which explains why the movement induced by the contact of the parquet is another reason why it can be ignored.

Individual parquet elements can be made relatively wide (for example 27gno) and Therefore, when using wooden blocks that differ from each other in terms of color and size/shape, In addition, by changing the laying pattern, a wide range of designs can be selected. It is Noh. The availability of inexpensive wood such as alder and mountain ash To make the parquet floor structure of the present invention competitive in terms of price.

Although the present invention is applicable to manufacturing ready-made parquet and parquet boards, it can also be applied directly to flooring. laid on top and glued directly to the floor, sanded and painted with parquet lacquer. Real parquet equivalent to traditional block parquet with clothed blocks It is also applicable to

international search report Thin--Moo-ni TUFT 91100374

Claims (1)

[Claims] 1. The grain direction of the wood that makes up the parquet surface layer (1) is perpendicular to the parquet surface or For parquet structures that have sharp edges, the actual surface varnish Impregnated under the lacquer layer (3) inside the longitudinal grains and in the gaps between them. A filling resin or varnish (2) is provided, the amount of the varnish being equal to the amount of the parquet wrap. A parquet floor characterized by being several times larger, preferably 4 to 5 times larger than a car. structure. 2. The filling resin or varnish that can be absorbed into the wood (1) has a thickness of about 0.1% inside the wood. The filling resin or varnish layer (2) is impregnated to a depth of 0.5 mm to 0.5 mm. is coated with a layer of actual parquet lacquer (3) The parquet floor structure described in item 1 of the scope. 3. The filling resin (2) is made of an ultraviolet curable polyester resin, and , the parquet lacquer (3) is made of an ultraviolet curable urethane lacquer; The parquet floor structure according to claim 1 or 2, characterized by: 4. The amount of the filling resin or varnish (2) is the same as that of the parquet lacquer (3). 4 to 5 times the amount, and the filling resin is polyester resin, acrylic resin. , epoxy resin, urea resin and phenolic resin. The parquet floor structure according to any one of claims 1 to 3, characterized in that: 5. The filling resin is mixed with whitening pigments such as titanium white and resin-soluble colorants. The collection according to any one of claims 1 to 4, characterized in that: Wooden floor structure. 6. The amount of the filling resin or varnish is 100 g/m2 to 300 g/m2. Yes, the amount of the parquet lacquer (1) is 20 g/m2 to 50 g/m2. The parquet according to any one of claims 1 to 5, characterized in that: floor structure. 7. Polyethylene glycol is applied to the wooden block constituting the wood layer (1) on the surface. The feature is that the cell wall is impregnated with water-soluble alcohol such as alcohol to replace the water in the cell wall. The parquet floor structure according to claim 1 or 2. 8. Place the wooden blocks with the grain direction perpendicular or at an acute angle to the surface of the parquet. The work of placing the surface layer (1) of the wood made of rock on the parquet body (4) and the surface The work of sanding the wood smooth and creating a lacquer finish using parquet lacquer. In the parquet manufacturing method with Filling resin or varnish (2) impregnated inside the eyes and on the surface of the parquet , the amount of said varnish being equal to the amount of said parquet lacquer. A method for producing parquet wood, characterized in that it is twice as large, preferably four to five times as large. 9. A surface wood layer (1) forming a wooden block is placed on said body (4) Prior to the process, the wooden blocks are coated with a water-soluble material such as polyethylene glycol. By impregnating with polyhydric alcohol and replacing some of the water in the cell wall, The parquet according to claim 8, characterized in that it affects the wooden block. Production method. 10. The amount of filling resin or varnish impregnated on the finished wooden parquet surface 100 g/m2 or more, preferably about 150 to 200 g/m2, and this filling Apply some parquet lacquer on top of the resin or varnish at a rate of about 20 to 50 g/m The parquet manufacturing method according to claims 8 to 9, characterized in that the method is applied in an amount of 2. . 11. During the cooling process, the filling resin or varnish (2) is inside the heated wood. of the filling resin or varnish to a depth of about 0.2 to 0.5 mm. After layer (2) is applied, the actual parquet lacquer consists of urethane lacquer - coating the tree by applying a layer (3). The method for manufacturing parquet according to any one of boxes 8 to 10.