JP5333936B2 - INK COATING METHOD, INK COATING APPARATUS, INK COATED FLOOR MATERIAL MANUFACTURING METHOD, AND INK COATED FLOORING - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and apparatus for applying ink to the upper inclined surface of a floor material at a high speed, a method of producing the floor material to which the ink is already applied, and the floor material to which the ink is already applied by the method of producing the floor material to which the ink is already applied. <P>SOLUTION: The ink applying apparatus 10 includes: a plurality of conveying rollers 31 for supporting and conveying the floor material 11; a solution applying roll 32 for applying a solution 28 having affinity to the ink 27 to the chamfered part 21a of the floor material 11 conveyed by the conveying rollers 31 and a floor material upper surface 21 near it; a water absorbing roll 33 for raking off the solution 28 remaining on the upper surface 21 of the floor material 11 in the solution 28 applied by the solution applying roll 32; and an ink applying means 34 for applying the ink 27 to the solution 28 applied to the chamfered part 21a. The ink applying means 34 has a 2-stage printing plate barrel 35 which is freely turnably supported and applies the ink 27 attached on the outer peripheral surface to the solution 28 on the chamfered part 21a. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to an ink application method and an ink application apparatus for applying ink to an inclined surface formed on an upper surface of a flooring, and in particular, an ink that can apply ink easily and accurately to an inclined surface. The present invention relates to a coating method and an ink coating apparatus. The present invention also relates to a method for producing an ink-coated floor material, and an ink-coated floor material obtained by the method for producing the ink-coated floor material.

  An inclined surface, for example, a vertical groove or a horizontal groove, may be formed on the upper surface of the floor material, which is a building material, for decorativeness. In addition, when a plurality of flooring materials are laid on the floor surface, an inclined surface, for example, a chamfered portion may be formed at the end of the upper surface of each flooring material in order to form vertical grooves or horizontal grooves between the flooring materials. is there.

  As a method of applying ink to these inclined surfaces formed on the upper surface of the flooring material, ink is applied to the entire upper surface of the flooring material including the inclined surface by an ink application roll, and then the inclined surface by a scraping roll. Other than the above, for example, a method of scraping ink applied to a flat surface on the upper surface of a flooring material is known.

  For example, Patent Document 1 discloses a coloring method for concave portions formed on a decorative sheet surface. The coloring method includes a step of coloring the surface of the decorative sheet by contacting a colorant-containing sponge roll that rotates in the direction in which the decorative sheet is extruded in the direction of travel with the surface of the decorative sheet that proceeds in a certain direction; A step of scraping off the colorant adhering to other than the recesses by sequentially bringing at least two colorant scraping rolls into contact with the surface of the decorative sheet. .

  Patent Document 2 discloses a groove coating apparatus that performs coating in a concave groove that leads from one side of a workpiece to the other side. The groove coating apparatus includes an application nozzle that applies paint in a groove in the workpiece, a receiving stopper that is in contact with an end surface on one side of the workpiece and that communicates with one end of the groove, and the other side of the workpiece A pressing pusher that contacts the end face of the groove and communicates with the other end of the groove and presses the workpiece toward the receiving stopper, and an extra portion that flows into the recess communicating with the bottom of the receiving stopper and the pressing pusher. A suction discharge means for sucking and discharging the paint is provided.

  Patent Document 3 discloses another groove coating method. In this groove coating method, a transfer film having a transfer layer made of a paint on the surface of the film is placed on the groove opening of the decorative plate having the groove so that the surface faces in the groove direction. The mold surface having a shape capable of pressing the surface of the film substantially uniformly is pressed to adhere the transfer layer to the groove surface, and then the film is peeled off to transfer the transfer layer onto the groove surface.

JP-A-2005-313142 Japanese Utility Model Publication No. 6-3469 JP-A-6-233966

  However, in the coloring method disclosed in Patent Document 1, there is a problem that the ink applied to the floor material other than the inclined surface is scraped off, so that there is a lot of wasted ink. Further, depending on the uneven shape of the groove on the surface, the ink may not be scraped off, and the groove shape needs to be easily scraped off. Moreover, in the groove coating apparatus disclosed in Patent Document 2 or the groove coating method disclosed in Patent Document 3, it is difficult to perform coating at high speed, and the inclined surface of the flooring is generally laminated. Since it is formed by processing floor material made of body by cutting etc., uneven parts such as whirling are easily formed on the inclined surface, which causes ink smearing etc. on the uneven parts, resulting in unstable coating Is also possible.

  The present invention has been made in consideration of such points, and without using the ink wastefully and without causing ink fading on the inclined surface formed on the upper surface of the flooring, An object of the present invention is to provide an ink coating method and an ink coating apparatus capable of coating ink at high speed easily and accurately. Another object of the present invention is to provide a method for producing an ink-coated flooring and an ink-coated flooring obtained by the method for producing an ink-coated flooring.

  The present invention relates to a method of applying ink to an inclined surface formed on an upper surface of a flooring material having a wooden board and a decorative sheet laminated on the wooden board, the inclined surface and the upper surface of the flooring material in the vicinity thereof. A step of applying a solution having affinity for the ink, a step of removing the solution remaining on the upper surface of the flooring, and a step of applying the ink to the solution on the inclined surface. And an ink coating method characterized by comprising:

  The present invention is the ink coating method, wherein the inclined surface is formed by a chamfered portion formed at an upper end portion of the flooring.

  The present invention is an ink application method characterized in that a male real part or a female real part is provided on a side surface corresponding to an upper surface end part of a floor material on which a chamfered part is formed.

  The present invention is the ink coating method, wherein the inclined surface is formed by a vertical groove or a horizontal groove inclined surface formed on the upper surface of the flooring.

  The present invention is the ink coating method, wherein the inclined surface reaches from the decorative sheet to the wooden board.

  The present invention relates to a transport roller for supporting and transporting a floor material in an apparatus for applying ink to an inclined surface formed on an upper surface of a floor material having a wooden board and a decorative sheet laminated on the wooden board. And a solution application means for applying a solution having affinity for ink on the inclined surface of the floor material conveyed by the conveyance roller and the upper surface of the floor material in the vicinity thereof, and among the solutions applied by the solution application means, An ink coating apparatus comprising: a solution removing unit that removes a solution remaining on an upper surface of a flooring material; and an ink coating unit that coats ink on a solution on an inclined surface.

  The present invention is the ink coating apparatus, wherein the inclined surface includes a chamfered portion formed at an upper end portion of the flooring.

  The present invention is an ink coating apparatus in which a male real part or a female real part is provided on a side surface corresponding to an upper end portion of a floor material on which a chamfered part is formed.

  The present invention is the ink coating apparatus, wherein the inclined surface is formed by an inclined surface of a vertical groove or a horizontal groove formed on the upper surface of the flooring.

  The present invention is the ink coating apparatus, wherein the inclined surface extends from the decorative sheet to the wooden board.

  The present invention is an ink coating apparatus characterized in that the ink coating means has a two-stage printing plate cylinder including a small diameter portion and a large diameter portion connected to the small diameter portion.

  The present invention is the ink coating apparatus in which the two-stage printing plate cylinder rotates in the direction opposite to the conveying direction of the flooring.

  The present invention is the ink coating apparatus, wherein the solution removing means is composed of a water-absorbing roll that is rotated by being driven by a water-absorbing roll driving mechanism.

  The present invention is the ink coating apparatus, wherein the water absorption roll is driven by a water absorption roll drive mechanism and rotates in the same direction as the conveying direction of the flooring.

  The present invention is the ink coating apparatus characterized in that the solution coating means includes a solution coating roll that is driven and rotated by a coating roll driving mechanism.

  The present invention is an ink coating apparatus in which the solution coating roll is driven by a coating roll driving mechanism and rotates in the same direction as the conveying direction of the flooring.

  The present invention relates to a method for producing an ink-coated flooring, the step of preparing a flooring having a wooden board and a decorative sheet laminated on the wooden board and having an inclined surface formed on the upper surface; Applying ink to the inclined surface formed on the upper surface of the material, and the step of applying ink has affinity for the ink on the inclined surface and the upper surface of the floor material in the vicinity thereof An ink application comprising: a step of applying a solution; a step of removing a solution remaining on an upper surface of the floor material from the applied solution; and a step of applying ink to the solution on the inclined surface. This is a method for producing a finished flooring.

  The present invention relates to an ink-coated flooring obtained by a method of manufacturing an ink-coated flooring, wherein the method of manufacturing the ink-coated flooring includes a wooden board and a decorative sheet laminated on the wooden board A step of preparing a flooring having an inclined surface formed on the upper surface and a step of applying ink to the inclined surface formed on the upper surface of the flooring, and applying the ink A step of applying a solution having affinity for ink to the inclined surface and the upper surface of the floor material in the vicinity thereof; a step of removing a solution remaining on the upper surface of the floor material from the applied solution; and the inclined surface And a step of applying ink to the above solution.

  According to the present invention, first, a solution having affinity for ink is applied to the inclined surface and the upper surface of the floor material in the vicinity thereof, and then the solution remaining on the upper surface of the floor material is removed from the applied solution. Thereafter, ink is applied to the solution on the inclined surface. In this way, ink can be easily and accurately applied to the inclined surface of the upper surface of the floor material. This makes it possible to apply the ink at high speed without wasting the ink wastefully and without causing ink fading. This makes it possible to easily produce an ink-coated flooring. In addition, there is no restriction on the shape of the inclined surface when ink is applied to the inclined surface of the upper surface of the floor material, and thus various designs can be easily expressed on the floor material.

FIG. 1 is a perspective view showing the entire ink coating apparatus according to the first embodiment. FIG. 2 is a diagram showing a cross-section of the flooring in the first embodiment. FIG. 3 is a plan view showing the flooring in the first embodiment of the present invention. FIG. 4 is a side view showing the flooring in the first embodiment of the present invention. FIG. 5 is a diagram showing a state in which two flooring materials are connected in the first embodiment of the present invention. FIG. 6A is a front view showing the two-stage printing plate cylinder in the first embodiment of the present invention, and FIG. 6B shows the two-stage printing plate cylinder in the first embodiment of the present invention. The side view to show and FIG.6 (c) are the figures which expand and show the edge part among the two-step printing plate cylinder shown to Fig.6 (a). FIG. 7 is a perspective view showing the entire ink coating apparatus according to the second embodiment. FIG. 8 (a) is a front view showing a two-stage printing plate cylinder in the second embodiment of the present invention, and FIG. 8 (b) shows a two-stage printing plate cylinder in the second embodiment of the present invention. A side view and FIG.8 (c) are the figures which expand and show the edge part among the ink application | coating means shown to Fig.8 (a).

First Embodiment Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

1 to 6 are views showing a first embodiment of an ink coating apparatus according to the present invention.
Here, FIG. 1 is a perspective view showing the entire ink coating apparatus in the first embodiment of the present invention, and FIG. 2 is a diagram showing a cross section of the flooring material in the first embodiment of the present invention. is there. FIG. 3 is a plan view showing the flooring in the first embodiment of the present invention, and FIG. 4 is a side view showing the flooring in the first embodiment of the present invention. FIG. 5 is a diagram illustrating a state in which two floor materials are connected in the first embodiment of the present invention. FIG. 6A is a front view showing a two-step printing plate cylinder in the first embodiment of the present invention, and FIG. 6B is a two-step printing plate in the first embodiment of the present invention. FIG. 6C is a side view showing the cylinder, and FIG. 6C is an enlarged view showing an end portion of the two-stage printing plate cylinder shown in FIG.

Floor Material First, the floor material 11 to which the ink 27 is applied by the ink application apparatus 10 according to the present embodiment will be described with reference to FIGS. As shown in FIG. 2, the flooring 11 has a wood board 12 and a decorative sheet 14 laminated on the wood board 12 via a first adhesive coat layer 13.

  Next, the layer structure of the flooring 11 will be further described in detail. The structure of the wood board 12 in the flooring 11 is not particularly limited. For example, wood veneer / plywood, particle board, medium density fiber board (MDF), and the like made of trees such as cedar, straw, firewood, lawan, teak, etc. Is mentioned. Although the thickness of the wooden board 12 is not specifically limited, For example, it exists in the range of 3-21 mm, for example, is 11.8 mm.

  The material of the 1st adhesive agent coating layer 13 among the flooring materials 11 is not specifically limited, According to the wooden board 12 and the decorative sheet 14, it selects suitably. For example, a vinyl acetate resin-based adhesive can be used as the first adhesive coat layer 13. The thickness of the first adhesive coat layer 13 is, for example, 30 μm.

  Next, the decorative sheet 14 in the flooring 11 will be described. Although the structure of the decorative sheet 14 is not particularly limited, for example, the decorative sheet 14 includes a urethane-based primer back coat layer 15, a colored olefin resin raw fabric layer 16, and pattern printing arranged in order from the first adhesive coat layer 13 side. It has a layer 17, an adhesive coat layer 18, a transparent polypropylene (PP) resin film 19, and an ionizing radiation curable resin coat layer. The thickness of each layer 15, 16, 17, 18, 19, 20 is not particularly limited. For example, the thickness of each layer 15, 16, 17, 18, 19, 20 is 1 μm, 60 μm, 10 μm, 3 μm, 80 μm, Therefore, the thickness of the decorative sheet 14 is about 170 μm.

  Next, the shape of the flooring 11 will be described with reference to FIGS. 3 and 4. FIG. 3 is a plan view showing the flooring 11 when viewed from above. As shown in FIG. 3, the flooring 11 has a rectangular shape, and its length is, for example, 1818 mm, and its width is, for example, 303 mm. Of the side surfaces of the flooring 11, a long side 22 on one side is provided with a male part 22a described later, and a long side 24 on the other side is provided with a female part 24a described later. The short side 23 on one side is provided with a male part 23a, and the short side 25 on the other side is provided with a female part 25a. A vertical groove 21c (inclined surface) is formed on the upper surface of the flooring 11.

  Next, with reference to FIG. 4 and FIG. 5, the male real part 22a, the female real part 24a, and the vertical groove 21c will be described in detail. 4 is a diagram showing a cross section when the flooring 11 of FIG. 3 is viewed from the AA direction, and FIG. 5 shows a state in which one flooring 11 and another flooring 11 are connected. FIG. As shown in FIG. 4, the male part 22a provided on the long side 22 on one side has a convex shape, and the female part 24a provided on the long side 24 on the other side has a concave shape. doing. Moreover, the male real part 22a and the female real part 24a have a complementary dimension, and as shown in FIG. 5, the male real part provided in the long side part 22 of one flooring 11 is shown. The two floor materials 11 and 11 can be connected to each other at the long side surfaces 22 and 24 by fitting the 22a into the female real part 24a provided on the long side surface 24 of the other floor material 11.

  As shown in FIG. 4, a chamfered portion 21 a (inclined surface) is formed at the upper end portion of the long side surface 22 on one side where the male portion 22 a is provided, that is, at the end portion of the upper surface 21 of the flooring 11. ing. Similarly, a chamfered portion 21a is also formed at the upper end portion of the other long side surface 24 provided with the female real portion 24a. These chamfered portions 21a have a depth of 1 mm and a width of 1 mm. Therefore, when the two flooring materials 11 and 11 are connected at their long side surfaces 22 and 24, the longitudinal grooves shown in FIG. 21b is formed. The vertical groove 21b has a depth of 1 mm and a width of 2 mm, and has the same depth and width as the vertical groove 21c formed in the central portion of the upper surface 21 of the flooring 11.

As shown in FIGS. 4 and 5, the chamfered portion 21 a and the vertical groove 21 c of the flooring 11 have a depth reaching from the decorative sheet 14 of the flooring 11 to the wood board 12. The chamfered portion 21a and the vertical groove 21c are formed by, for example, cutting the flooring 11, and at this time, the chamfered portion 21a and the vertical groove 21c are formed at a portion reaching the wood board 12. Is easy to form uneven parts such as crests. The height of such an uneven part is, for example, 100 to 200 μm.
In order to improve the adhesion of the flooring 11, the corona discharge treatment is applied to the upper surface 21 including the chamfered portion 21 a and the vertical groove 21 c of the flooring 11 before applying the solution 28 and the ink 27 described later to the flooring 11. It is preferable to apply.

Solution and Ink Next, the ink 27 applied to the chamfered portion 21a and the longitudinal groove 21c of the flooring 11 and the solution 28 having an affinity for the ink 27 will be described.

  First, the ink 27 will be described. The kind of ink 27 is not specifically limited, The well-known ink 27 used in the field | area of a decorative sheet is mentioned. For example, it is a color ink obtained by dissolving or dispersing a known dye or pigment in a solvent or dispersant together with a binder resin.

  Examples of pigments or dyes include inorganic pigments such as carbon black, titanium white, zinc white, dial, bitumen, cadmium red; azo pigments, lake pigments, anthraquinone pigments, quinacridone pigments, phthalocyanine pigments, isoindolinone pigments, dioxazines Organic pigments such as pigments; metal powder pigments such as aluminum powder and bronze powder; pearlescent pigments such as titanium oxide-coated mica and bismuth oxide chloride; fluorescent pigments; These can be used individually or in mixture of 2 or more types. Further, it may further contain a filler such as silica, an extender pigment such as organic beads, a neutralizing agent, and a surfactant.

  Examples of the binder resin include acrylic resins, styrene resins, polyester resins, urethane resins, acrylic urethane resins, chlorinated polyolefin resins, vinyl chloride-vinyl acetate copolymer resins, polyvinyl butyral resins, Examples include alkyd resins, petroleum resins, ketone resins, epoxy resins, melamine resins, fluorine resins, silicon resins, fiber derivatives, rubber resins, and the like. These resins may be used alone or in admixture of two or more.

Next, the solution 28 having an affinity for the ink 27 will be described. The solution 28 is not particularly limited as long as it has an affinity for the ink 27 to be used. For example, a mixed solution of water and IPA (isopropyl alcohol), a mixture of water and TPM (triphenylmethane). Examples thereof include a solution or a mixed solution of water and DMP (dipropylene glycol methyl ether). In view of wet spreading characteristics and drying characteristics, it is preferable to use a mixed solution of water and IPA having good wet spreading characteristics and appropriate drying characteristics as the solution 28.
Furthermore, for the purpose of strengthening the bond with the chamfered portion 21 a of the flooring 11, a crosslinking agent that is dispersed in the solution 28 or soluble in the solution 28 can be added.

Ink Application Device Next, an ink application device 10 for applying the ink 27 to the chamfered portion 21a formed on the upper surface 21 of the flooring 11 will be described with reference to FIGS.

  As shown in FIG. 1, the ink coating apparatus 10 includes a plurality of transport rollers 31 that support and transport the floor material 11, a chamfered portion 21 a of the floor material 11 that is transported by the transport roller 31, and a floor material upper surface in the vicinity thereof. 21, a solution application roll 32 (solution application means) for applying a solution 28 having an affinity for the ink 27, and a solution remaining on the upper surface 21 of the flooring 11 among the solution 28 applied by the solution application roll 32. A water absorption roll 33 (solution removing means) that scrapes and removes the ink 28 and an ink application means 34 that applies the ink 27 to the solution 28 on the chamfered portion 21a are provided. In the present application, “in the vicinity of the chamfered portion 21 a” means a range of about 1 to 5 mm from the edge (the boundary between the chamfered portion 21 a and the upper surface 21) of the groove 21 b formed by the chamfered portion 21 a.

  Of these, the solution application roll 32 is preferably formed from a sponge-like roll having cushioning properties. Although the kind of material of a roll is not specifically limited, For example, a urethane resin-type material can be used. The solution application roll 32 is preliminarily permeated with a solution 28 having an affinity for the ink 27. The water absorbing roll 33 is also formed from a sponge-like roll having water absorption. The solution application roll 32 and the water absorption roll 33 are rotatably supported by shafts 32 a and 33 a and pressed against the upper surface 21 of the flooring 11. Moreover, the height of each shaft 32a, 33a can be adjusted, and, for this reason, the solution application roll pressed against the upper surface 21 of the flooring 11 by adjusting the height of each shaft 32a, 33a. It is possible to adjust the pressing amount (pressing strength) of 32 and the water absorbing roll 33.

Further, as shown in FIG. 1, the solution coating roll 32 is rotationally driven by a coating roll driving mechanism 51 through a shaft 32a. For this reason, when the solution 28 is applied to the chamfered portion 21 a of the floor material 11 and the upper surface 21 of the floor material 11 in the vicinity thereof by the solution application roll 32, the solution application roll 32 does not idle on the floor material 11. Thus, the solution 28 having affinity for the ink 27 can be reliably applied to the chamfered portion 21 a of the floor material 11 and the upper surface 21 of the floor material 11 in the vicinity thereof.
The direction of rotation of the solution application roll 32 is not particularly limited, but preferably, as indicated by an arrow in FIG. 1, the solution application roll 32 is driven by the application roll drive mechanism 51 to be the same as the conveying direction of the flooring 11. Rotate in the direction of.

Moreover, as shown in FIG. 1, the water absorption roll 33 is rotationally driven by the water absorption roll drive mechanism 52 via the shaft 33a. For this reason, when the solution 28 remaining on the upper surface 21 of the flooring 11 is scraped off by the water absorbing roll 33, the water absorbing roll 33 does not idle on the flooring 11. Thereby, the solution 28 remaining on the upper surface 21 of the flooring 11 can be scraped off with high accuracy.
The direction of rotation of the water absorption roll 33 is not particularly limited, but preferably, as shown by an arrow in FIG. 1, the water absorption roll 33 is driven by the water absorption roll drive mechanism 52 and is in the same direction as the conveyance direction of the flooring 11. Rotate to.

  The conveyance speed of the flooring 11, that is, the rotation speed of each conveyance roller 31 is controlled by the control unit 50. Similarly, the rotation speeds of the solution application roll 32 and the water absorption roll 33 are controlled by the control unit 50. The rotation speeds of the solution application roll 32 and the water absorption roll 33 are appropriately set according to the conveyance speed of the flooring 11, the layer configuration of the flooring 11, the type of the solution 28, and the like. The peripheral speed of the solution application roll 32 is in the range of 20 to 40 m / min, and the rotational speed of the water absorption roll 33 (the peripheral speed of the water absorption roll 33) is in the range of 20 to 40 m / min.

  The ink application means 34 is rotatably supported, and is rotatably supported by a two-stage printing plate cylinder 35 for applying the ink 27 adhered on the outer peripheral surface thereof to the solution 28 on the chamfered portion 21a. A finisher roll 36 is provided so as to be immersed in the ink 27 in the ink pan 37 and to adhere the ink 27 on the outer peripheral surface of the two-stage printing plate cylinder 35. Among these, as shown in FIG. 1, the two-step printing plate cylinder 35 is such that the outer peripheral surface of the two-step printing plate cylinder 35 is in the conveying direction of the floor material 11 at a position where the outer peripheral surface of the two-step printing plate cylinder 35 contacts the floor material 11. Is driven by a drive mechanism (not shown) so as to rotate in the opposite direction. A discharge tube 38 is connected to the ink pan 37, and the other end of the discharge tube 38 is connected to an ink buffer tank 39 that temporarily stores the ink 27. An ink tank 40 is connected to the ink buffer tank 39, so that the ink 27 stored in the ink tank 40 is supplied to the ink pan 37 via the ink buffer tank 39 and the discharge tube 38.

  Next, the two-stage printing plate cylinder 35 of the ink application means 34 will be described in detail with reference to FIG. 6A is a front view showing the two-stage printing plate cylinder 35 when viewed from the conveying direction of the flooring 11, and FIG. 6B is a side view showing the two-stage printing plate cylinder 35. FIG. . FIG. 6C is an enlarged view showing the vicinity of the outer peripheral surface (portion surrounded by a dotted line in FIG. 6A) of the two-stage printing plate cylinder 35 shown in FIG. 6A.

  As shown in FIGS. 6A and 6B, the two-step printing plate cylinder 35 includes a small diameter portion 41 and a large diameter portion 42 that is connected to the small diameter portion 41. Among these, the thickness of the small diameter part 41 is 1.2 mm, and the thickness of the large diameter part 42 is 0.8 mm. The difference between the radius of the small diameter portion 41 and the radius of the large diameter portion 42 is 1.5 mm. Due to the difference in radius, when the ink 27 is applied to the chamfered portion 21a of the flooring 11 by rotating the two-step printing plate cylinder 35 as shown in FIG. In the region corresponding to a difference of 1.5 mm between the radius of the small-diameter portion 41 and the radius of the large-diameter portion 42 between 41a and the end portion 42a of the large-diameter portion 42, the surface of the ink is curved due to surface tension. 27 liquid masses 27a are formed.

Ink Application Method Next, a method for applying the ink 27 to the chamfered portion 21a formed on the upper surface 21 of the flooring 11 will be described.

  First, as shown in FIG. 1, a flooring 11 is prepared in which chamfered portions 21 a are respectively formed at the upper end portions of the long side portions 22 and 24. Next, after adjusting the direction of the flooring 11 so that the length directions of the long side portions 22 and 24 of the flooring 11 coincide with the transporting direction of the transporting roller 31 of the ink coating apparatus 10, The floor material 11 is transported by the transport roller 31 until the short side portion 25 reaches the solution coating roll 32 of the ink coating apparatus 10. At this time, each conveyance roller 31 is controlled by the control device 50 so that the conveyance speed of the flooring becomes 70 m / min.

  Next, as shown in FIG. 1, the solution application roll 32 pressed against the upper surface 21 of the floor material 11 causes the chamfered portion 21 a of the floor material 11 and the upper surface 21 of the floor material 11 in the vicinity thereof to the ink 27. A solution 28 having affinity is applied. At this time, the application roll drive mechanism 51 is controlled by the control device 50 so that the rotation speed of the solution application roll 32 is 20 m / min. Next, after the floor material 11 is sent to the water absorption roll 33 by each transport roller 31, the solution 28 remaining on the upper surface 21 of the floor material 11 out of the solution 28 applied to the floor material 11 by the solution application roll 32 is used as the water absorption roll. Scrap by 33. At this time, the water absorption roll drive mechanism 52 is controlled by the control device 50 so that the rotation speed of the water absorption roll 33 is 20 m / min. In this case, the upper surface 21 of the flooring 11 generally has a smooth surface with few irregularities, and therefore it is easy to scrape the solution 28 remaining on the upper surface 21 of the flooring 11 with the water absorption roll 33. In this way, only the chamfered portion 21 a of the flooring 11 is covered with the solution 28 as shown in FIG.

  Next, when the floor material 11 is sent to the two-stage printing plate cylinder 35 of the ink application means 34 by each transport roller 31, the control device 50 controls each transport roller 31 so that the transport speed of the floor material becomes 30 m / min. Control. Thereafter, the ink 27 is applied to the solution 28 on the chamfered portion 21 a by the two-stage printing plate cylinder 35. At this time, as described above, the radius of the small diameter portion 41 and the radius of the large diameter portion 42 are between the end portion 41a of the small diameter portion 41 and the end portion 42a of the large diameter portion 42 of the rotating two-stage printing plate cylinder 35. In the region corresponding to the difference of 1.5 mm, a liquid mass 27a of the ink 27 whose surface is curved by the surface tension is formed. A solution 28 having an affinity for the ink 27 is applied on the chamfered portion 21 a of the flooring 11. For this reason, the ink 27 can be infiltrated into the solution 28 by bringing the liquid mass 27 a of the ink 27 adsorbed by the two-step printing plate cylinder 35 into contact with the chamfered portion 21 a of the flooring 11. In this case, since the solution 28 has an affinity for the ink 27, it is not necessary to accurately set the arrangement of the two-step printing plate cylinder 35 with respect to the chamfered portion 21 a of the flooring 11. The liquid mass 27a only needs to be brought into contact with any position in the chamfered portion 21a of the flooring 11. In this way, the ink 27 is applied to the chamfered portion 21 a of the flooring 11.

  Ink 27 is applied over the entire chamfered portion 21 a of the flooring 11, and then the flooring 11 is transported by the transport rollers 31 until the short side portion 23 on one side of the flooring 11 reaches the two-stage printing plate cylinder 35. Then, each conveyance roller 31 is controlled by the control apparatus 50 so that the conveyance speed of the flooring 11 becomes 70 m / min again. As a result, the floor material 11 with the ink 27 applied to the chamfered portion 21a is sent out from the ink application device 10, and thus the floor material 11 with the ink 27 applied is manufactured.

  Thus, according to the present embodiment, after the solution 28 having affinity for the ink 27 is applied to the chamfered portion 21a of the flooring 11 and the upper surface 21 of the flooring 11 in the vicinity thereof, the flooring 11 The solution 28 remaining on the upper surface 21 is scraped off. For this reason, only the chamfered portion 21 a of the flooring 11 can be easily covered with the solution 28.

  Further, according to the present embodiment, the ink 27 is applied to the chamfered portion 21 a covered with the solution 28 having an affinity for the ink 27 in the flooring 11. Therefore, the ink 27 can be applied easily and accurately at high speed to the chamfered portion 21a of the flooring 11 without wastefully using the ink 27 and without causing the ink 27 to fade. This makes it possible to easily manufacture the flooring 11 with the ink 27 applied thereto.

  Further, according to the present embodiment, as described above, the chamfered portion 21a is covered with the solution 28 before the ink 27 is applied to the chamfered portion 21a. In general, the viscosity of the solution 28 is lower than that of the ink 27. Therefore, even if the chamfered portion 21a has a roll of the decorative sheet 14 or a roll of the wooden board 12 generated during the cutting process for forming the chamfer 21a, Solution 28 can wrap under these bites. For this reason, when the ink 27 is applied to the chamfered portion 21 a covered with the solution 28, the ink 27 can wrap around these scoops. As a result, even when the chamfered portion 21a is formed with a crest, the ink 27 can be uniformly applied to the chamfered portion 21a without causing uneven coating.

  Furthermore, according to the present embodiment, the two-stage printing plate cylinder 35 of the ink application means 34 includes the small diameter portion 41 and the large diameter portion 42 provided to be connected to the small diameter portion 41. In a region corresponding to the difference between the radius and the radius of the large diameter portion 42, a liquid region 27a whose surface is curved by surface tension is formed. A solution 28 having an affinity for the ink 27 is applied on the chamfered portion 21 a of the flooring 11. For this reason, the ink 27 is infiltrated into the solution 28 by bringing the liquid mass 27a of the ink 27 adsorbed by the two-step printing plate cylinder 35 into contact with the solution 28 applied to the chamfered portion 21a of the flooring 11. Thus, the ink 27 can be applied to the chamfered portion 21a. For this reason, it is not necessary to accurately set the arrangement of the two-step printing plate cylinder 35 with respect to the chamfered portion 21a of the flooring 11, thereby simplifying the configuration of the ink application device 10 and at the time of applying the ink 27. The conveying speed of the flooring 11 can be increased.

  Further, according to the present embodiment, first, each transport roller 31 is controlled by the control device 50 so that the transport speed of the floor material becomes 70 m / min, and then the floor material 11 is printed in two steps by the ink application means 34. When fed to the plate cylinder 35, the respective conveying rollers 31 are controlled by the control device 50 so that the conveying speed of the flooring becomes 30 m / min. Thereafter, after the short side portion 23 of the flooring 11 reaches the two-step printing plate cylinder 35, the respective transport rollers 31 are controlled by the control device 50 so that the transport speed of the flooring 11 becomes 70 m / min again. . In this way, the conveyance speed of the flooring 11 is reduced while the ink 27 is applied to the flooring 11 by the two-stage printing plate cylinder 35, while the flooring before and after the ink 27 is applied to the flooring 11. 11 is increased, the ink 27 is accurately applied to the chamfered portion 21a of the flooring 11 and the time required for the entire painting process of the flooring 11 can be shortened.

  In addition, in this Embodiment, the example in which the water absorption roll 33 was arrange | positioned in 1 step was shown. However, the present invention is not limited to this, and the water-absorbing rolls 33 may be arranged in two, three, or more stages (see the two-dot chain line in FIG. 1). As a result, even if the solution 28 applied to the upper surface 21 of the flooring 11 cannot be completely scraped off by the first-stage water-absorbing roll 33, the floor-material 11 can be removed by the second-stage or later water-absorbing roll 33. The solution 28 applied to the upper surface 21 can be completely scraped off.

  Moreover, in this Embodiment, the chamfering part 21a showed the example currently formed so that it may have the depth which reaches from the decorative sheet 14 to the wood board 12. FIG. However, the present invention is not limited to this, and the chamfered portion 21 a may not have a depth that reaches the wooden board 12.

  Moreover, in this Embodiment, the chamfer 21a formed in the upper end part of the long side 22 of the one side of the flooring 11, and the chamfer 21a formed in the upper end of the long side 24 of the other side of the flooring 11 An example in which the ink 27 is applied is shown in FIG. However, the present invention is not limited to this, and the chamfered portion 21 a formed at the upper end portion of the short side surface 23 on one side of the flooring 11 and the chamfered portion formed at the upper end portion of the short side surface 25 on the other side of the flooring 11. The ink 27 may be applied to the portion 21a.

  Further, in the present embodiment, the two-stage printing plate cylinder 35 is in a position where the outer peripheral surface of the two-stage printing plate cylinder 35 is in contact with the floor material 11, and the outer peripheral surface of the two-stage printing plate cylinder 35 is the conveyance direction of the floor material 11. In the example shown in FIG. However, the present invention is not limited to this, and the outer peripheral surface of the two-step printing plate cylinder 35 is in the same direction with respect to the conveying direction of the floor member 11 at a position where the outer peripheral surface of the two-step printing plate cylinder 35 contacts the floor material 11. The two-stage printing plate cylinder 35 may be driven by a driving mechanism so as to rotate.

  In the present embodiment, first, each transport roller 31 is controlled by the control device 50 so that the floor material transport speed is 70 m / min, and then the floor material 11 is the two-stage printing plate of the ink application means 34. When fed to the cylinder 35, each conveying roller 31 is controlled by the control device 50 so that the conveying speed of the flooring becomes 30 m / min, and then, the short side portion 23 of the flooring 11 becomes the two-stage printing plate cylinder 35. After reaching, an example is shown in which each transport roller 31 is controlled by the control device 50 so that the transport speed of the flooring 11 becomes 70 m / min again. However, the present invention is not limited to this, and each transport roller 31 may be controlled by the control device 50 so that the transport speed of the flooring 11 is always constant. Further, the conveying speed of the flooring 11 may be appropriately adjusted according to the dimensions of the chamfered portion 21a of the flooring 11 and the characteristics of the ink 27 and the solution 28.

  In the present embodiment, the thickness of the small diameter portion 41 of the two-step printing plate cylinder 35 is 1.2 mm, the thickness of the large diameter portion 42 is 0.8 mm, and the radius and the large diameter of the small diameter portion 41 are. An example in which the difference in radius of the portion 42 is 1.5 mm is shown. However, the present invention is not limited to this, and the thickness and radius of the small diameter portion 41 and the large diameter portion 42 may be appropriately set according to the dimensions of the chamfered portion 21 a of the flooring 11. For example, the difference between the radius of the small diameter portion 41 and the radius of the large diameter portion 42 may be set to be 0.3 to 3 times the depth of the chamfered portion 21a.

  Moreover, in this Embodiment, the decorative sheet 14 is the urethane type primer back surface coating layer 15 arrange | positioned in order from the 1st adhesive agent coating layer 13 side, the colored olefin resin raw fabric layer 16, the pattern printing layer 17, An example in which the second adhesive coat layer 18, the transparent polypropylene (PP) resin film 19, and the ionizing radiation curable resin coat layer 20 are formed is shown. However, the decorative sheet 14 is not limited to this, and the decorative sheet 14 further includes a transparent polyethylene terephthalate (PET) resin layer (not shown) between the first adhesive coat layer and the urethane primer back coat layer 15. You may have.

  Further, in the present embodiment, the solution applying means for applying the solution 28 having affinity for the ink 27 to the chamfered portion 21a of the flooring 11 and the flooring upper surface 21 in the vicinity thereof is supported rotatably. The example which consists of the solution application | coating roll 32 was shown. However, the present invention is not limited to this, and the solution applying means may be constituted by a non-rotating means such as a brush, a spray or a dispenser.

  Further, in the present embodiment, the solution removing means for removing the solution 28 remaining on the upper surface 21 of the flooring 11 from the solution 28 applied by the solution coating roll 32 causes the solution 28 remaining on the upper surface 21 of the flooring 11 to be removed. The example which consists of the water absorption roll 33 removed by scraping was shown. However, the present invention is not limited to this, and the solution removing means may be constituted by an air cutter that removes the solution 28 remaining on the upper surface 21 of the flooring 11 by blowing it off with wind pressure. Alternatively, the solution removing means may be constituted by a urethane resin roll or a doctor blade that ejects and removes the solution 28 remaining on the upper surface 21 of the flooring 11.

  Further, in the present embodiment, an example is shown in which the ink 27 is applied to the solution 28 on the chamfered portion 21a by the two-stage printing plate cylinder 35 that is rotatably supported. However, the present invention is not limited to this, and the ink 27 may be applied to the solution 28 on the chamfered portion 21a by a non-rotating means such as a stamp, a brush, a spray, or a dispenser.

  Moreover, in this Embodiment, the solution application roll 32 and the water absorption roll 33 showed the example rotated by the application roll drive mechanism 51 and the water absorption roll drive mechanism 52 via the shafts 32a and 33a, respectively. However, it is not restricted to this, The application roll drive mechanism 51 and the water absorption roll drive mechanism 52 do not need to be provided. Even when the application roll drive mechanism 51 and the water absorption roll drive mechanism 52 are not provided, the solution application roll 32 and the water absorption roll 33 are rotatably supported by the shafts 32 a and 33 a and the upper surface of the flooring 11. Therefore, when the flooring 11 is transported by the transport rollers 31, the solution coating roll 32 and the water application roll 32 and the water absorption roll 33 and the frictional force acting between the flooring 11 are used. The water absorption roll 33 can be rotated.

Second Embodiment Next, a second embodiment of the present invention will be described with reference to FIGS. Here, FIG. 7 is a perspective view showing the entire ink coating apparatus in the second embodiment of the present invention, and FIG. 8A is a two-stage printing plate cylinder in the second embodiment of the present invention. FIG. 8B is a side view showing the two-stage printing plate cylinder in the second embodiment of the present invention, and FIG. 8C is the ink shown in FIG. It is a figure which expands and shows the edge part among application | coating means.

  In the second embodiment shown in FIGS. 7 and 8, a solution application roll 48 for applying a solution 28 having affinity for the ink 27 to the longitudinal grooves 21c of the floor material 11 and the floor material upper surface 21 in the vicinity thereof. Of the solution 28 applied by the solution application roll 48, the water absorption roll 49 for scraping off the solution 28 remaining on the upper surface 21 of the flooring 11, and the two stages for applying the ink 27 to the solution 28 on the vertical groove 21c. The only difference is that the printing plate cylinder 45 is further provided, and the other configuration is substantially the same as that of the first embodiment shown in FIGS. In the second embodiment shown in FIG. 7 and FIG. 8, the same parts as those in the first embodiment shown in FIG. 1 to FIG. In the present application, “in the vicinity of the vertical groove 21 c” means a range of about 1 to 5 mm from the edge of the vertical groove 21 c (the boundary between the vertical groove 21 c and the upper surface 21).

Ink Application Device As shown in FIG. 7, the ink application device 10 includes a plurality of conveyance rollers 31 that support and convey the floor material 11, vertical grooves 21 c of the floor material 11 conveyed by the conveyance roller 31, and the vicinity thereof. The upper surface of the floor material 11 among the solution application roll 48 (solution application means) for applying the solution 28 having affinity for the ink 27 to the floor material upper surface 21 and the solution 28 applied by the solution application roll 48. 21 is provided with a water absorbing roll 49 (solution removing means) for scraping and removing the solution 28 remaining on the sheet 21 and a two-stage printing plate cylinder 45 for applying the ink 27 to the solution 28 on the longitudinal groove 21c. As shown in FIG. 7, the solution application roll 48 is rotatably supported by a shaft 32a similarly to the solution application roll 32, and the solution application roll 48 is supported by an application roll driving mechanism 51 via the shaft 32a. It is rotationally driven. The water absorption roll 49 is rotatably supported by the shaft 33a similarly to the water absorption roll 33, and the water absorption roll 49 is rotationally driven by the water absorption roll drive mechanism 52 via the shaft 33a.

  Next, the two-stage printing plate cylinder 45 will be described in more detail with reference to FIG. FIG. 8A is a front view showing the two-stage printing plate cylinder 45 when viewed from the conveyance direction of the flooring 11, and FIG. 8B is a side view showing the two-stage printing plate cylinder 45. . FIG. 8C is an enlarged view showing the vicinity of the outer peripheral surface (portion surrounded by a dotted line in FIG. 8A) of the two-stage printing plate cylinder 45 shown in FIG. 8A.

  As shown in FIGS. 8A and 8B, the two-stage printing plate cylinder 45 includes two small diameter portions 46 and a large diameter portion 47 provided between the two small diameter portions 46. Yes. Among these, the thickness of the small diameter part 46 is 0.6 mm, and the thickness of the large diameter part 47 is 0.4 mm. The difference between the radius of each small diameter portion 46 and the radius of the large diameter portion 47 is 1 mm. Due to the difference in radius, as shown in FIG. 8C, when the ink 27 is applied to the vertical groove 21c of the flooring 11 by rotating the two-step printing plate cylinder 45, the end of each small diameter portion 46 is In the region corresponding to the difference of 1 mm between the radius of each small-diameter portion 46 and the radius of the large-diameter portion 47 between the portion 46a and the end portion 47a of the large-diameter portion 47, the surface of the ink is curved by surface tension. Twenty-seven liquid masses 27a are formed.

Ink Application Method Next, a method for applying the ink 27 to the chamfered portion 21a and the vertical groove 21c formed on the upper surface 21 of the flooring 11 will be described. Note that the method for applying the ink 27 to the chamfered portion 21a is the same as that in the first embodiment of the present invention, and thus the description thereof is omitted.

  First, as shown in FIG. 7, a flooring 11 in which chamfered portions 21 a are formed at the upper ends of the long side portions 22 and 24 and vertical grooves 21 c are formed on the upper surface 21 of the flooring 11 is prepared. Next, after adjusting the direction of the flooring 11 so that the length directions of the long side portions 22 and 24 of the flooring 11 coincide with the transporting direction of the transporting roller 31 of the ink coating apparatus 10, The flooring 11 is transported by the transport roller 31 until the short side portion 25 reaches the solution coating roll 48 of the ink coating apparatus 10. At this time, each conveyance roller 31 is controlled by the control device 50 so that the conveyance speed of the flooring becomes 70 m / min.

  Next, as shown in FIG. 7, the solution application roll 48 pressed against the upper surface 21 of the floor material 11 causes the longitudinal grooves 21 c of the floor material 11 and the upper surface 21 of the floor material 11 in the vicinity thereof to the ink 27. A solution 28 having affinity is applied. At this time, the application roll drive mechanism 51 is controlled by the control device 50 so that the rotation speed of the solution application roll 48 is 20 m / min. Next, after the floor material 11 is sent to the water absorption roll 49 by each conveyance roller 31, the solution 28 remaining on the upper surface 21 of the floor material 11 out of the solution 28 applied to the floor material 11 by the solution application roll 48 is used as the water absorption roll. Scrap by 49. At this time, the water absorbing roll drive mechanism 52 is controlled by the control device 50 so that the rotational speed of the water absorbing roll 49 is 20 m / min. In this case, the upper surface 21 of the flooring 11 generally has a smooth surface with few irregularities, and therefore it is easy to scrape the solution 28 remaining on the upper surface 21 of the flooring 11 by the water absorption roll 49. In this way, as shown in FIG. 1, the longitudinal groove 21 c of the flooring 11 is covered with the solution 28.

  Next, when the floor material 11 is sent to the two-stage printing plate cylinder 45 of the ink application means 34 by each transport roller 31, the control device 50 controls each transport roller 31 so that the transport speed of the floor material is 30 m / min. Control. Thereafter, the ink 27 is applied to the solution 28 on the longitudinal groove 21c by the two-stage printing plate cylinder 45. At this time, as described above, the radius of the small diameter portion 46 and the diameter of the large diameter portion 47 are between the end portion 46a of each small diameter portion 46 and the end portion 47a of the large diameter portion 47 of the rotating two-stage printing plate cylinder 45. In a region corresponding to a radius difference of 1 mm, a liquid mass 27a of ink 27 whose surface is curved by surface tension is formed. A solution 28 having an affinity for the ink 27 is applied on the vertical groove 21 c of the flooring 11. For this reason, the ink 27 can be infiltrated into the solution 28 by bringing the liquid mass 27 a of the ink 27 adsorbed on the two-stage printing plate cylinder 45 into contact with the longitudinal grooves 21 c of the flooring 11. In this case, since the solution 28 has an affinity for the ink 27, it is not necessary to accurately set the arrangement of the two-step printing plate cylinder 45 with respect to the longitudinal groove 21c of the flooring 11, and the ink 27 It is sufficient that the liquid mass 27a can be brought into contact with any position in the vertical groove 21c of the flooring 11. In this way, the ink 27 is applied to the vertical groove 21c of the flooring 11.

  Ink 27 is applied over the entire longitudinal groove 21 c of the flooring 11, and then the flooring 11 is transported by the transport rollers 31 until the short side portion 23 on one side of the flooring 11 reaches the two-stage printing plate cylinder 45. Then, each conveyance roller 31 is controlled by the control apparatus 50 so that the conveyance speed of the flooring 11 becomes 70 m / min again. Thereby, the floor material 11 in which the ink 27 is applied to the longitudinal groove 21c is sent out from the ink application device 10, and thus the ink-coated floor material 11 is manufactured.

  As described above, according to the present embodiment, after the solution 28 having affinity for the ink 27 is applied to the longitudinal groove 21c of the flooring 11 and the upper surface 21 of the flooring 11 in the vicinity thereof, the flooring 11 The solution 28 remaining on the upper surface 21 is scraped off. For this reason, only the vertical groove 21 c of the flooring 11 can be easily covered with the solution 28. Further, by covering the vertical groove 21c with the solution 28, it is possible to smooth the concavo-convex portions such as the scissors formed in the vertical groove 21c.

  Further, according to the present embodiment, the ink 27 is applied to the longitudinal groove 21 c covered with the solution 28 having an affinity for the ink 27 in the flooring 11. Therefore, the ink 27 can be applied easily and accurately at high speed to the longitudinal grooves 21c of the flooring 11 without wastefully using the ink 27 and without causing the ink 27 to fade. This makes it possible to easily manufacture the flooring 11 with the ink 27 applied thereto.

  Further, according to the present embodiment, as described above, the longitudinal groove 21c is covered with the solution 28 before the ink 27 is applied to the longitudinal groove 21c. Generally, the viscosity of the solution 28 is lower than that of the ink 27. Therefore, even if the vertical groove 21c has a roll of the decorative sheet 14 or a wooden board 12 generated during the cutting process for forming the vertical groove 21c, Solution 28 can wrap under these bites. For this reason, when the ink 27 is applied to the longitudinal groove 21c covered with the solution 28, the ink 27 can sneak under these scoops. As a result, even if the vertical grooves 21c are formed with a ridge, the ink 27 can be uniformly applied to the vertical grooves 21c without causing uneven coating.

  Further, according to the present embodiment, the two-stage printing plate cylinder 45 of the ink application means 34 includes two small diameter portions 46 and a large diameter portion 47 provided between the two small diameter portions 46. In addition, a liquid region 27 a whose surface is curved by surface tension is formed in a region corresponding to the difference between the radius of each small diameter portion 46 and the radius of the large diameter portion 47. A solution 28 having an affinity for the ink 27 is applied on the vertical groove 21 c of the flooring 11. For this reason, the ink 27 is infiltrated into the solution 28 by bringing the liquid mass 27a of the ink 27 adsorbed on the two-step printing plate cylinder 45 into contact with the solution 28 applied to the vertical groove 21c of the flooring 11. Thus, the ink 27 can be applied to the longitudinal groove 21c. For this reason, it is not necessary to accurately set the arrangement of the two-stage printing plate cylinder 45 with respect to the longitudinal groove 21c of the flooring 11, thereby simplifying the configuration of the ink application device 10 and at the time of applying the ink 27 The conveying speed of the flooring 11 can be increased.

  In the present embodiment, an example in which the water absorption rolls 33 and 49 are arranged in one stage is shown. However, the present invention is not limited to this, and the water-absorbing rolls 33 and 49 may be arranged in two, three, or more stages (see the two-dot chain line in FIG. 7). As a result, even if the first-stage water-absorbing rolls 33 and 49 cannot completely scrape off the solution 28 applied to the upper surface 21 of the flooring 11, the second-stage and subsequent water-absorbing rolls 33 and 49 Thus, the solution 28 applied to the upper surface 21 of the flooring 11 can be completely scraped off.

  Moreover, in this Embodiment, the example in which the ink 27 is apply | coated to the vertical groove | channel 21c of the flooring 11, ie, the groove | channel extended in the direction parallel to the long side surfaces 22 and 24 of the flooring 11, was shown. However, the present invention is not limited to this, and the ink 27 may be applied to the lateral grooves of the flooring 11 extending in a direction parallel to the short side surfaces 23 and 25 of the flooring 11.

  In the present embodiment, the thickness of the small diameter portion 46 of the two-step printing plate cylinder 45 is 0.6 mm, the thickness of the large diameter portion 47 is 0.4 mm, and the radius and the large diameter of the small diameter portion 46 are. An example in which the difference in radius of the portion 47 is 1 mm is shown. However, the present invention is not limited to this, and the thickness and radius of the small-diameter portion 46 and the large-diameter portion 47 may be appropriately set according to the size of the vertical groove 21c of the flooring 11. For example, the difference between the radius of the small diameter portion 46 and the radius of the large diameter portion 47 may be set to be 0.3 to 3 times the depth of the vertical groove 21c.

  In the present embodiment, the solution applying means for applying the solution 28 having affinity for the ink 27 to the longitudinal groove 21c of the flooring 11 and the flooring upper surface 21 in the vicinity thereof is supported rotatably. The example which consists of the solution application | coating roll 48 was shown. However, the present invention is not limited to this, and the solution applying means may be constituted by a non-rotating means such as a brush, a spray or a dispenser.

  In the present embodiment, the solution removing means for removing the solution 28 remaining on the upper surface 21 of the flooring 11 from the solution 28 applied by the solution applying roll 48 causes the solution 28 remaining on the upper surface 21 of the flooring 11 to be removed. The example which consists of the water absorption roll 49 removed by scraping was shown. However, the present invention is not limited to this, and the solution removing means may be constituted by an air cutter that removes the solution 28 remaining on the upper surface 21 of the flooring 11 by blowing it off with wind pressure. Alternatively, the solution removing means may be constituted by a urethane resin roll or a doctor blade that ejects and removes the solution 28 remaining on the upper surface 21 of the flooring 11.

  Further, in the present embodiment, an example in which the ink 27 is applied to the solution 28 on the longitudinal groove 21c by the two-stage printing plate cylinder 45 supported rotatably is shown. However, the present invention is not limited to this, and the ink 27 may be applied to the solution 28 on the longitudinal groove 21c by a non-rotating means such as a stamp, a brush, a spray, or a dispenser.

  Further, in the present embodiment, an example is shown in which the solution application roll 48 and the water absorption roll 49 are rotationally driven by the application roll drive mechanism 51 and the water absorption roll drive mechanism 52 through the shafts 32a and 33a, respectively. However, it is not restricted to this, The application roll drive mechanism 51 and the water absorption roll drive mechanism 52 do not need to be provided. Even when the application roll drive mechanism 51 and the water absorption roll drive mechanism 52 are not provided, the solution application roll 48 and the water absorption roll 49 are rotatably supported by the shafts 32a and 33a and the upper surface of the flooring 11 is used. Therefore, when the flooring 11 is transported by the transport rollers 31, the solution coating roll 48 and the water application roll 49 and the water absorption roll 49 and the frictional force acting between the flooring 11 are used. The water absorption roll 49 can be rotated.

DESCRIPTION OF SYMBOLS 10 Ink application apparatus 11 Flooring material 12 Wood board 13 1st adhesive coat layer 14 Cosmetic sheet 15 Urethane-type primer back surface coating layer 16 Colored olefin resin raw fabric layer 17 Picture printing layer 18 2nd adhesive coat layer 19 Transparent polypropylene (PP ) Resin film 20 Ionizing radiation curable resin coating layer 21 Floor top surface 21a Chamfered portion on floor top surface 21b Vertical groove formed by chamfered portion 21c Vertical groove on floor top surface 22 Long side on one side 22a Long side on one side Male side 23 short side of one side 23a male side of short side of one side 24 long side of other side 24a female side of long side of other side 25 short side of other side 25a female of short side of other side Real part 27 Ink 27a Liquid mass of ink 28 Solution 31 Conveying roller 32 Solution application roll for chamfering part 32a Shaft for solution application roll 33 Chamfering part Water-absorbing roll 33a Water-absorbing roll shaft 34 Ink coating means 35 Two-stage printing plate cylinder for chamfered portion 36 Finisher roll 37 Ink pan 38 Discharge tube 39 Ink buffer tank 40 Ink tank 41 Small-diameter portion 41a of the two-step printing plate cylinder for chamfered portion End of the small diameter portion 42 Large diameter portion of the two-step printing cylinder for chamfered portion 42a End portion of the large diameter portion 45 Two-stage printing plate cylinder for the longitudinal groove 46 Small diameter portion of the two-step printing plate cylinder for the longitudinal groove 46a End 47 Large-diameter portion of two-stage printing plate cylinder for longitudinal groove 47a End of large-diameter portion 48 Solution coating roll for longitudinal groove 49 Water-absorbing roll for longitudinal groove 50 Control unit 51 Application roll drive mechanism 52 Water-absorption roll drive mechanism

Claims (18)

In a method of applying ink to an inclined surface formed on the upper surface of a flooring material having a wooden board and a decorative sheet laminated on the wooden board,
Applying a solution having affinity for ink on the inclined surface and the upper surface of the floor material in the vicinity thereof;
Of the applied solution, removing the solution remaining on the upper surface of the flooring;
And a step of applying ink to the solution on the inclined surface.   The ink coating method according to claim 1, wherein the inclined surface includes a chamfered portion formed at an upper end portion of the flooring.   3. The ink application method according to claim 2, wherein a male real part or a female real part is provided on a side surface corresponding to an upper surface end portion of the floor material on which the chamfered part is formed.   The ink coating method according to claim 1, wherein the inclined surface is formed of an inclined surface of a vertical groove or a horizontal groove formed on the upper surface of the flooring.   The ink coating method according to claim 1, wherein the inclined surface reaches from the decorative sheet to the wooden board. In an apparatus for applying ink to an inclined surface formed on an upper surface of a flooring material having a wooden board and a decorative sheet laminated on the wooden board,
A transport roller for supporting and transporting the floor material;
Solution application means for applying a solution having affinity for ink to the inclined surface of the floor material conveyed by the conveyance roller and the upper surface of the floor material in the vicinity thereof,
A solution removing means for removing the solution remaining on the upper surface of the floor material from the solution applied by the solution applying means;
And an ink applying means for applying ink to the solution on the inclined surface. Inclined surfaces, Ri Do the chamfered portion formed on the ends of the top surface of the flooring,
The solution application means is configured to apply a solution having affinity for ink to the chamfered portion of the floor material and the upper surface of the floor material in the vicinity thereof,
Ink applicator means, the ink coating apparatus according to claim 6, characterized that you have configured to apply ink to a solution on the chamfer. A male part or a female part is provided on the side surface corresponding to the upper surface end of the floor material on which the chamfered part is formed ,
The solution application means is a solution having affinity for ink on the chamfered portion formed on the upper end portion of the side surface of the floor material provided with the male part or the female part and the upper surface of the floor material in the vicinity thereof. Is configured to apply,
8. The ink coating apparatus according to claim 7 , wherein the ink coating unit is configured to apply ink to the solution on the chamfered portion . Inclined surfaces, Ri Do from the inclined surface of the longitudinal grooves or lateral grooves formed on the upper surface of the flooring,
The solution application means is configured to apply a solution having affinity for ink to the vertical groove or the horizontal groove of the floor material and the upper surface of the floor material in the vicinity thereof,
Ink applicator means, the ink coating apparatus according to claim 6, characterized that you have configured to apply ink to the longitudinal grooves or solution above the lateral groove. The inclined surface is reached from the decorative sheet to the wood plate,
The solution applying means is configured to apply a solution having affinity for ink to both the decorative sheet portion and the wooden board portion of the inclined surface,
The ink application device according to any one of claims 6 to 9 , wherein the ink application means is configured to apply ink to the solution on the inclined surface .   The ink coating apparatus according to claim 6, wherein the ink coating means includes a two-stage printing plate cylinder including a small diameter portion and a large diameter portion connected to the small diameter portion.   The ink coating apparatus according to claim 11, wherein the two-stage printing plate cylinder rotates in a direction opposite to a conveying direction of the flooring.   The ink removing apparatus according to claim 6, wherein the solution removing unit includes a water-absorbing roll that is driven and rotated by a water-absorbing roll driving mechanism.   14. The ink coating apparatus according to claim 13, wherein the water absorption roll is driven by a water absorption roll drive mechanism and rotates in the same direction as the conveying direction of the flooring.   The ink coating apparatus according to claim 6, wherein the solution coating unit includes a solution coating roll that is rotated by being driven by a coating roll driving mechanism.   The ink coating apparatus according to claim 15, wherein the solution coating roll is driven by a coating roll driving mechanism and rotates in the same direction as the conveying direction of the flooring. In the method for manufacturing the ink-coated flooring,
A step of preparing a flooring having a wooden board and a decorative sheet laminated on the wooden board and having an inclined surface formed on the upper surface;
A step of applying ink to the inclined surface formed on the upper surface of the flooring,
The step of applying the ink includes a step of applying a solution having affinity for ink to the inclined surface and the upper surface of the floor material in the vicinity thereof, and removing a solution remaining on the upper surface of the floor material from the applied solution. And a step of applying ink to the solution on the inclined surface. A method for producing an ink-coated flooring. In the ink-coated flooring obtained by the method for manufacturing the ink-coated flooring,
The method of manufacturing the ink-coated flooring includes a step of preparing a flooring having a wooden board and a decorative sheet laminated on the wooden board, and an inclined surface is formed on the upper surface, and an upper surface of the flooring And a step of applying ink to the inclined surface formed on
The step of applying the ink includes a step of applying a solution having affinity for ink to the inclined surface and the upper surface of the floor material in the vicinity thereof, and removing a solution remaining on the upper surface of the floor material from the applied solution. And a step of applying an ink to the solution on the inclined surface.

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