JP4798036B2 - Grooving method for wooden flooring - Google Patents

Description

  The present invention relates to a groove processing method for flooring. More specifically, the present invention relates to a method for performing groove processing such as V-shaped grooves on the surface of a wooden flooring.

  In recent years, wood resources have been depleted and it is difficult to obtain lumber wood, so various wood floor materials such as plywood, laminated wood, medium density fiberboard (MDF), particle board, etc. are priced. It is generally used as a flooring material because it is easily available and is excellent in strength.

  The wooden flooring is usually provided with artificial joints and is subjected to decorative groove processing such as V-shaped grooves by cutting or the like for the purpose of improving design properties. However, when grooving is performed, fluffing occurs on the grooving surface, fibers such as socks and stockings get caught, and transmission lines etc., and some cloth fibers remain in the groove during wiping and cleaning. There are problems such as. In order to solve such problems, various proposals have been conventionally made.

For example, in the following Patent Document 1, in the flooring in which at least one groove portion is provided on one surface of a wooden base material and the decorative sheet is attached to the one surface provided with the one groove portion, the decorative sheet is used. A flooring material is disclosed in which a coating layer is formed in the groove portion that is attached so as to cover a corner portion of the one surface of the groove portion and is not covered with the decorative sheet. .
JP 2002-339557 A (pages 1 to 3, FIG. 1)

  However, since the technique described in Patent Document 1 is a technique for a flooring material in which a decorative sheet is attached to one surface, for example, it can be immediately applied to a wooden flooring material in which the surface of a plywood is covered with a veneer. I can't say that.

  The present invention has been conceived under such circumstances, and when the surface of a wooden floor is grooved by cutting, fluffing is prevented from occurring in the groove and the grooving surface is smooth. It is an object of the present invention to provide a method for processing a groove in a wooden floor material that can suppress variations in the color of the groove coloring surface and reduce the color difference on the floor material surface.

  In order to solve the above problems, the present invention takes the following technical means. That is, according to the first aspect of the present invention, there is provided a method for grooving the surface of a wooden floor material, the preliminary coloring step for coloring a grooved surface formed by cutting together with the surface, and for coloring. Provided is a method for grooving a wooden floor material in which a pre-drying step for drying the paint and a groove polishing step are performed, followed by a main treatment step including a coloring step, a drying step, and a finish coating step. .

  Normally, when grooves are formed on the surface of a wooden floor material by cutting, the grooved surface is a coloring step for coloring exposed and fluffy wood fibers, a drying step for drying the colored grooved surface, a groove It is processed by a method comprising a finish coating process for coating the processed surface and the surface of the wooden flooring.

However, in the above-described conventional method, the wood fiber wetted with the paint in the coloring process to form a smooth processed surface is warped or returned as it dries after the finish coating, and thus fluffing occurs again. Then, with the fluff at the core, the paint hardens and becomes burrs, and the grooved surface becomes rough. Therefore, in the method of the present invention, a preliminary treatment step is provided, and after completion of preliminary coloring and preliminary drying, fluffy wood fibers are removed by a groove polishing step. That is, the preliminary coloring step is performed with a water-based paint, and in the preliminary drying step, moisture of the wood fiber is blown to generate fluff, and the water-based paint is solidified with the fluff as a core to generate burrs. It is removed by polishing in the groove polishing step. Thereafter, grooving of the wooden flooring is performed by the main processing step including the coloring step, the drying step, and the finish coating step.

  The wood fiber is not particularly limited, and examples thereof include plywood, laminated wood, medium density fiber board (MDF), and particle board.

In addition to the invention described in claim 1, the groove polishing method of the wood floor material according to claim 2 is performed by a polishing brush.

According to the invention described in claim 3 , in addition to the invention described in claim 1, the grooving is a cutting process for cutting into a V-shape.

  The groove processing method of the wooden flooring according to the invention of claim 1 is as described above, and the preliminary coloring step as the first step, the preliminary drying step as the second step, and the groove polishing as the third step. After performing the preliminary treatment consisting of the process, the fluff caused by drying after coloring is removed in advance in the preliminary treatment step by performing the main treatment step consisting of the coloring step, the drying step, and the finish coating step. Therefore, the groove processing surface becomes smooth, and variations in color in the groove portion can be suppressed. Moreover, since it is overcoated by the pretreatment process and the main treatment process, the color difference on the surface of one wooden flooring can be reduced.

Further, groove processing method of wood flooring of claim 1 are as defined above, by performing the pre備着color process in aqueous paints, wood fibers to absorb enough water, or warp as they dry, returned In order to make a substantial part of the wood fiber to be fluffed, the fluffed part in this treatment process can be removed in advance to make a smooth grooved surface, and in the preliminary coloring process, the water-based paint is infiltrated into the interior Therefore, drying, coloring even grooving surface after the polishing process is completed is that have been maintained.

The groove processing method of the wooden flooring according to claim 2 is as described above. In addition to the effect of the groove processing method of the wooden flooring according to claim 1, the fluff polishing step is performed by a polishing brush. It can be removed efficiently.

The wood floor according to claim 3 is as described above, and in addition to the effects of the wood floor material grooving method according to claim 1, the grooving is a grooving that is cut into a V shape. Therefore, the decorative groove can be provided in the plywood fabric with good design.

  Hereinafter, an example in which a plywood is used as a wooden floor material will be described with respect to an embodiment of a groove processing method for a wooden floor material according to the present invention. FIG. 1 is a process diagram showing the above-described method for grooving a wooden floor material. As shown in FIG. 1, first, a groove portion having a substantially V-shaped cross section is provided on the surface of the plywood by cutting.

  The wooden flooring on which the V-shaped grooves are formed on the surface in the above process is subjected to a preliminary process before the main process. That is, as the first step, the exposed surface of the V-groove wood fiber is preliminarily colored with an aqueous paint. This preliminary coloring is performed by sponge roll or spray coating, and the surface of the flooring is colored together with the grooves. As described above, the fluffy wood fiber on the processed surface of the V-shaped groove colored with the water-based paint is wetted and softened to form a smooth wood fiber colored layer along the groove processed surface.

  After preliminary coloring, as a second step, a drying step is performed in which the inside of the groove is dried with hot air of 70 to 130 ° C. Due to this drying process, a considerable portion of the wood fibers from which moisture has been blown is warped and returned to cause fluffing again in the wood fiber colored layer. As a result, the grooved surface becomes rough, and the paint hardens with the fluff as a core, generating burrs.

  Therefore, in the preliminary treatment, as a third step, polishing is performed to remove fluff and burrs generated as described above. Polishing is performed by a conventionally known method, for example, by polishing with a polishing brush, and the generated fluff is removed to make the grooved surface smooth. The wood fiber colored layer colored in the preliminary coloring process is soaked with water-based paint to the inside thereof, so that the color of the grooved surface is maintained even after the drying and polishing process.

  After performing such preliminary processing, this processing step is performed. In this treatment process, first, the groove and the floor material surface are recolored. The paint used in this coloring process is a paint having the same color tone as that of the preliminary coloring process. By doing so, the effect of overcoating appears, and the surface of the wooden flooring and the groove can be uniformly colored without color unevenness.

  Next, as in the preliminary drying step, the main drying step is performed by drying with warm air of 70 to 130 ° C. Since the wood fibers that are warped or returned by the preliminary treatment have already been removed in the polishing step, the grooved surface does not become fluffy after the main drying step and can be made smooth. As a final step, finish coating is performed with a clear paint, and the entire process according to the wood flooring groove processing method of the present invention is completed.

  Examples of the present invention will be described below. First, as a target, the surface of the plywood fabric (uncolored) used as a wooden flooring was cut to provide a V-shaped groove, and a 7-mm Hunter Lab spectrophotometric colorimeter Handy ScanXE with a measurement diameter of 3 mm was used. Points were randomly selected and measured, and the color variation in the groove was determined from the average value. The L value range was 14.3, the a value range was 8.5, and the b value range was 12.4.

Next, 10 places on the surface of the plywood fabric (uncolored) were randomly selected and measured for color, and the surface color variation was determined from the average value. The L value range was 6.86, the a value range was 3.18, and the b value range was 4.97.
[Comparative Example 1]

Next, the groove processing of the wooden flooring was performed on the plywood by a conventional method in which the main treatment step was performed in the order of the coloring step, the drying step, and the finish coating step without performing pretreatment, and Comparative Example 1 was obtained. First, a sensory test was performed on the processed surface of the V-shaped groove by visual and tactile sense. As a result, in the method according to the above-described conventional example, fluff was raised on the groove processing surface, burrs were visually observed, and the touch was rough.

  Next, as in the case of the plywood fabric (uncolored), 7 points in the groove were randomly selected and measured for color, and the variation in color in the groove was determined from the average value. The L value range was 1.1, the a value range was 0.4, and the b value range was 0.7. Further, 10 places on the surface were randomly selected and measured for color, and the surface color variation was determined from the average value. The L value range was 3.76, the a value range was 1.33, and the b value range was 1.15.

The method of the present invention was performed on the plywood. That is, a plurality of V-grooves are provided on the surface of the plywood by cutting, and after the above-described preliminary treatment, the present treatment process is performed in the order of the coloring process, the drying process, and the finish coating process. Example 1 was adopted. When the processed surface of the V-shaped groove was subjected to a sensory test by visual and tactile sense, the groove processed surface obtained in Example 1 was visually free of fluff and burrs, and the touch was also smoother than in Comparative Example 1. Met.

  Then, in the same manner as described above, seven points in the groove were randomly selected and measured for color, and the color variation in the groove was determined from the average value. The L value range was 1.0, the a value range was 0.3, and the b value range was 0.6. Further, the color variation in the groove portion was small even visually. Further, 10 places on the surface were randomly selected and measured for color, and the surface color variation was determined from the average value. The L value range was 2.32, the a value range was 0.93, and the b value range was 1.03. Also, visually, the color difference within the surface of one product was small.

  Table 1 shows the seven-point average values of the colorimetric results obtained by the spectrocolorimeters in the grooves of Comparative Example 1 and Example 1, which are the objects described above. As shown in Tables 1 and 2, it is clear that by performing the method of the present invention, color variations and color differences are reduced on both the groove and the surface.

It is explanatory drawing which shows the process of the groove processing method of the wooden flooring concerning this invention.

Claims (3)

A method of grooving a surface of a wooden floor material, a pre-coloring step for coloring a grooved surface formed by cutting along with the surface, a pre-drying step for drying a paint used for coloring, and a groove polishing step Is a wood flooring groove processing method for performing the main processing step consisting of a coloring step, a drying step, and a finish coating step . The preliminary coloring step is performed with a water-based paint, and the preliminary drying step. In this case, a wooden flooring is characterized in that the moisture of the wood fiber is blown to generate fluff, the water-based paint is solidified by using the fluff as a core to generate burrs, and the burrs are removed by polishing in the subsequent groove polishing step. Grooving method .   The method for grooving a wood floor material according to claim 1, wherein the groove polishing step is performed with a polishing brush.   2. The method for grooving a wooden floor material according to claim 1, wherein the grooving is a cutting process of cutting into a V shape.

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