JP2013044124A - Method for coating floor material - Google Patents

Method for coating floor material Download PDF

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JP2013044124A
JP2013044124A JP2011181365A JP2011181365A JP2013044124A JP 2013044124 A JP2013044124 A JP 2013044124A JP 2011181365 A JP2011181365 A JP 2011181365A JP 2011181365 A JP2011181365 A JP 2011181365A JP 2013044124 A JP2013044124 A JP 2013044124A
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paint
coating
film
roll
flooring
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Takashi Tsunoda
敬 角田
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Panasonic Corp
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Panasonic Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a method for coating a floor material, which suppresses the usage of a top coat paint which is relatively expensive and can excellently recoat the material.SOLUTION: When coating a floor material 1 in which a face sheet 3 is attached to substrate plywood 2, the floor material is recoated through two stages. In a first stage, a large amount of an inexpensive paint is applied on the floor material 1 that has been undercoated, by using a flow coater 8 to form a first recoating film 5. The recoating film 5 is mirror-finished. In the second stage, a small amount of an expensive paint having impact resistance and abrasion resistance is applied on the first recoating film 5 by using a roll coater 9 to form a second recoating film 6.

Description

本発明は、建築材として使用される床材の塗装方法に関するものである。   The present invention relates to a method for painting a flooring material used as a building material.

床材の塗装を良好に仕上げるために、従来は上塗り工程でフローコーターが使用されている。このような塗装方法が例えば本件出願人の出願である特許文献1に開示されている。特許文献1には、床材に対してロールコーターで下塗りを実施し、下塗りされた塗料を乾燥させた後に、下塗り塗料の上からフローコーターによって上塗りする手順が開示されている。フローコーターとは、床材上に塗料をカーテン状に落として、床材の表面を塗装するものである。   Conventionally, a flow coater is used in the top coating process in order to finish the floor coating well. Such a coating method is disclosed in, for example, Patent Document 1 which is an application of the present applicant. Patent Document 1 discloses a procedure in which a floor coater is undercoated with a roll coater, the undercoated paint is dried, and then overcoated with a flow coater from above the undercoat paint. The flow coater is a method in which paint is dropped onto a floor material in a curtain shape to coat the surface of the floor material.

特許文献1に開示されている塗装方法を実施することにより、床材の表面の塗装を良好に仕上げることができる。   By performing the coating method disclosed in Patent Document 1, the surface of the flooring can be satisfactorily finished.

特開2008−280807号公報JP 2008-280807 A

一般に床材の上塗り塗料(塗膜)は、下塗りされた塗料(塗膜)を保護する機能を有している必要があり、また、耐衝撃性に優れている必要がある。一方、下塗り塗料(塗膜)は、床材を装飾する機能を有していればよく、上塗り塗料(塗膜)のような耐衝撃性等の機能は無用である。すなわち、上塗り用の塗料は下塗り用の塗料と比較して高価(高品質)である。   In general, a top coating (coating film) for a flooring material needs to have a function of protecting the undercoating paint (coating film), and needs to have excellent impact resistance. On the other hand, the undercoating paint (coating film) only needs to have a function of decorating the flooring material, and functions such as impact resistance like the topcoating paint (coating film) are unnecessary. That is, the paint for topcoat is expensive (high quality) compared with the paint for undercoat.

ところでフローコーターであれば、床材の表面に凹凸があってもこの凹凸に沿って一様に塗料を塗布することができるが、塗料が多量に消費されてしまう。すなわち、上塗り塗料をフローコーターで塗布すると、高価な上塗り塗料が必要以上に消費されてしまい、経済的ではなかった。   By the way, if it is a flow coater, even if the surface of a flooring has an unevenness | corrugation, although a coating material can be apply | coated uniformly along this unevenness | corrugation, a coating material will be consumed in large quantities. That is, when the top coat is applied with a flow coater, an expensive top coat is consumed more than necessary, which is not economical.

また、上塗りをロールコーターのみで実施すると、要求されるレベルに仕上がり状態を維持することが困難であった。すなわち、下地の表面の凹凸等により一様な品質の塗膜を形成するのは困難である。   Further, when the top coating is performed only with the roll coater, it is difficult to maintain the finished state at a required level. That is, it is difficult to form a coating film having a uniform quality due to unevenness on the surface of the base.

そこで本発明は、比較的高価な上塗り塗料の使用量を抑制すると共に、良好に上塗りすることができる床材の塗装方法を提供することを目的とする。   SUMMARY OF THE INVENTION An object of the present invention is to provide a floor covering coating method capable of satisfactorily overcoating while suppressing the amount of use of a relatively expensive top coating.

上記課題を解決するための請求項1に記載の発明は、基板に表面板を貼着した床材を塗装する方法であって、前記表面板の上塗り塗装をフローコーターで実施した後、アレルギー抑制剤等の機能性材料を混合したアクリルウレタン等の塗料をロールコーターで仕上げ塗装することを特徴とする床材の塗装方法である。   The invention according to claim 1 for solving the above-described problem is a method of coating a flooring material having a surface plate attached to a substrate, wherein the surface plate is overcoated with a flow coater, and then allergies are suppressed. This is a flooring coating method characterized in that a paint such as acrylic urethane mixed with a functional material such as an agent is finish-coated with a roll coater.

請求項1の発明では、上塗り塗装をフローコーターで実施した後、ロールコーターで仕上げることにより、上塗り塗装を鏡面塗装のように仕上げることができる。また、ロールコーターで最終的な仕上げを実施することにより、高価な塗料を多量に使用せずに済み、経済的である。さらに、上塗り塗装においてフローコーターで塗布される塗料は、ロールコーターで塗布される塗料で被覆されるので、耐衝撃性等の機能を有していなくてもよく、比較的安価な塗料を選定することができる。   In the first aspect of the present invention, the top coat can be finished like a mirror finish by performing the top coat with a flow coater and then finishing with a roll coater. Further, by carrying out final finishing with a roll coater, it is not necessary to use a large amount of expensive paint, which is economical. Furthermore, since the paint applied by the flow coater in the top coat is coated with the paint applied by the roll coater, it does not have to have a function such as impact resistance, and a relatively inexpensive paint is selected. be able to.

本発明の床材の塗装方法を実施すると、比較的高価な上塗り用の塗料の使用量を抑制し、さらに上塗り塗装を良好に仕上げることができる。   When the flooring coating method of the present invention is carried out, the amount of the relatively expensive coating material for top coating can be suppressed, and the top coating can be finished well.

床材の部分拡大側面図であり、本発明を実施して床材を上塗り塗装する際の仮想図である。It is a partial expanded side view of a flooring, and is a virtual view when the present invention is carried out and the flooring is overcoated.

図1に示すように、床材1に上塗塗装膜7を形成する塗装装置20は、フローコーター8とロールコーター9を有する。床材1は、予め下地合板2(無垢単板、集成材、中密度繊維板、パーティクルボード等からなる木質系の基板)に表面板3(突き板等)が接着剤で貼着されている。そして床材1は、表面板3が複数の塗装膜(下塗塗装膜、上塗塗装膜)で被覆される構造を呈する。以下、各塗装膜を形成する手順を説明する。   As shown in FIG. 1, a coating apparatus 20 that forms a top coat film 7 on a flooring 1 has a flow coater 8 and a roll coater 9. In the flooring 1, a surface board 3 (a veneer or the like) is pasted with an adhesive on a base plywood 2 (a solid board, a laminated board, a medium density fiber board, a wooden board made of particle board, etc.). . The flooring 1 has a structure in which the surface plate 3 is covered with a plurality of coating films (undercoat coating film, topcoat coating film). Hereinafter, a procedure for forming each coating film will be described.

まず、表面板3が貼着された下地合板2が、図示しない搬送装置によって図1の左方から右方へと搬送される。表面板3の上面には木材の毛羽立ちがあり、平滑ではない。この表面板3の上面に対して周知の手法によって下塗りを実施し、下塗塗装膜4を形成する。   First, the base plywood 2 to which the surface plate 3 is adhered is conveyed from the left to the right in FIG. The upper surface of the surface plate 3 has fluff of wood and is not smooth. Undercoating is performed on the upper surface of the surface plate 3 by a well-known method to form an undercoating film 4.

すなわち、スポンジロール、リバースロール、ナチュラルロール(圧締ロール)、乾燥機(いずれも図示せず)を下地合板2(基板)の搬送経路の上流側から順に配置し、表面板3に対してスポンジロールで塗料を一様に塗布し、リバースロールで余剰の塗料を掻き取り、ナチュラルロール(圧締ロール)で塗装面を平滑に仕上げ、さらに乾燥機で水分を除去する。その結果、下塗塗装膜4が形成される。下塗塗装膜4を形成する塗料の量は、3.0〜4.0[g/尺2]程度である。 That is, a sponge roll, a reverse roll, a natural roll (pressing roll), and a dryer (not shown) are arranged in order from the upstream side of the transport path of the base plywood 2 (substrate), and the sponge is applied to the surface plate 3. Apply the paint uniformly with a roll, scrape off excess paint with a reverse roll, finish the coated surface smoothly with a natural roll (pressing roll), and remove moisture with a dryer. As a result, the undercoat coating film 4 is formed. The amount of paint forming the undercoat coating film 4 is about 3.0 to 4.0 [g / scale 2 ].

また、必要に応じて下塗塗装膜4の上に中塗塗装膜を形成する。例えば1つ又は2以上のナチュラルロールによって塗料が下塗塗装膜4の上に塗布されて中塗塗装膜が形成される。中塗塗装膜4の塗布量は、2.7〜3.2[g/尺2]程度である。この下塗塗装膜4(中塗塗装膜)が形成された床材1を、上塗塗装膜7で被覆する。 Further, an intermediate coating film is formed on the undercoat coating film 4 as necessary. For example, the paint is applied on the undercoat film 4 by one or more natural rolls to form an intermediate coat film. The coating amount of the intermediate coating film 4 is about 2.7 to 3.2 [g / scale 2 ]. The flooring 1 on which the undercoat coating film 4 (intermediate coating film) is formed is covered with a topcoat coating film 7.

本発明の特徴的な構成である上塗塗装膜7を形成する塗装装置20は、床材1の搬送経路の上流側にフローコーター8が配置され、下流側にロールコーター9が配置される構成を有する。なお、図1では、フローコーター8とロールコーター9が近接して配置されているように描写しているが、実際にはこのように近接していない。図1では、上塗塗装膜7の形成の手順を説明する上で、視覚的に把握し易くするために両者を近接させて描写している。   The coating apparatus 20 that forms the top coat film 7 that is a characteristic configuration of the present invention has a configuration in which the flow coater 8 is disposed on the upstream side of the conveyance path of the flooring 1 and the roll coater 9 is disposed on the downstream side. Have. In FIG. 1, the flow coater 8 and the roll coater 9 are depicted as being arranged close to each other, but actually they are not close to each other. In FIG. 1, in explaining the procedure for forming the top coat film 7, the two are drawn close to each other for easy visual recognition.

フローコーター8は、紙面の手前側から奥側へのびる吐出口8aを有する。吐出口8aから床材1(下塗塗装膜4)の上に上塗り用の塗料14がカーテン状に供給され、床材1(下塗塗装膜4)の上には塗料14が塗布される。すなわち、図示しない搬送装置によって床材1を矢印Aで示す方向(左から右)に一定速度で移動させると共に、フローコーター8(吐出口8a)から塗料14を落下供給する。その結果、塗料14は床材1(下塗塗装膜4)の上に一定の厚みで塗布され、第1上塗塗装膜5が形成される。そして、図示しない乾燥機で第1上塗塗装膜5を乾燥させる。塗料14の塗布量は、5.5〜6.5[g/尺2]程度とすることができる。 The flow coater 8 has a discharge port 8a extending from the front side to the back side of the sheet. From the discharge port 8a, a coating material 14 for overcoating is supplied onto the flooring material 1 (undercoating coating film 4) in a curtain shape, and the coating material 14 is applied onto the flooring material 1 (undercoating coating film 4). That is, the flooring 1 is moved at a constant speed in the direction indicated by the arrow A (from left to right) by a conveying device (not shown), and the coating material 14 is dropped and supplied from the flow coater 8 (discharge port 8a). As a result, the paint 14 is applied with a certain thickness on the flooring 1 (the undercoat coating film 4), and the first topcoat coating film 5 is formed. And the 1st top coat film 5 is dried with the drier which is not illustrated. The coating amount of the paint 14 can be about 5.5 to 6.5 [g / scale 2 ].

なお、このフローコーター8で塗料14を塗布する前段階で、図示しないスポンジロールとナチュラルロールで予め塗料13及び塗料14と親和性が良好な塗料を塗布しておくのが好ましい。その際の当該塗料の塗布量は、2.3〜2.7[g/尺2]程度とする。 In addition, it is preferable to apply a paint having good affinity with the paint 13 and the paint 14 in advance with a sponge roll and a natural roll (not shown) before applying the paint 14 with the flow coater 8. The coating amount of the paint at that time is about 2.3 to 2.7 [g / scale 2 ].

次に、第1上塗塗装膜5が形成された床材1が、さらに矢印Aで示す方向に搬送され、ロールコーター9に達する。ロールコーター9は、メインロール10、ドクターロール11、金属ロール15、塗料供給源12を備えている。   Next, the flooring 1 on which the first top coat film 5 is formed is further conveyed in the direction indicated by the arrow A and reaches the roll coater 9. The roll coater 9 includes a main roll 10, a doctor roll 11, a metal roll 15, and a paint supply source 12.

各ロールは、床材1の搬送速度に合わせて所定の回転速度で各々回転する。メインロール10は、弾性を有する素材(合成ゴム等)で形成されており、第1上塗塗装膜5と接している。ドクターロール11は金属製であり、メインロール10との間に所定の隙間が形成されるように配置されている。また、メインロール10とドクターロール11の間には塗料供給源12から塗料が供給されており、図1では便宜上両ロール10、11の間に符号12を付している。   Each roll rotates at a predetermined rotational speed according to the conveying speed of the flooring 1. The main roll 10 is made of an elastic material (synthetic rubber or the like) and is in contact with the first top coat film 5. The doctor roll 11 is made of metal and is disposed so that a predetermined gap is formed between the doctor roll 11 and the main roll 10. Also, paint is supplied from the paint supply source 12 between the main roll 10 and the doctor roll 11, and in FIG.

メインロール10の下方には、床材1を挟んで金属ロール15が配置されている。金属ロール15は、床材1(第1上塗塗装膜5)とメインロール10の間に所定の押圧力を作用させるために配置されている。   A metal roll 15 is disposed below the main roll 10 with the flooring 1 interposed therebetween. The metal roll 15 is arranged to apply a predetermined pressing force between the floor material 1 (first top coat film 5) and the main roll 10.

塗料供給源12の塗料13はメインロール10の表面に付着し、メインロール10が回転すると、床材1(第1上塗塗装膜5)に塗布され、第1上塗塗装膜5の上に第2上塗塗装膜6を形成する。そして、第1上塗塗装膜5と第2上塗塗装膜6とで上塗塗装膜7が構成される。第2上塗塗装膜6を形成するのに使用される塗料13の量は、0.7〜1.2[g/尺2]程度である。また、塗料13としては、例えばアクリル樹脂,アミノアルキド,ビニル樹脂,エポキシ樹脂,ポリウレタン樹脂等を選定することができる。 The paint 13 of the paint supply source 12 adheres to the surface of the main roll 10, and when the main roll 10 rotates, it is applied to the flooring 1 (first top coat film 5) and second on the first top coat film 5. A top coat film 6 is formed. The first top coat film 5 and the second top coat film 6 constitute a top coat film 7. The amount of the coating 13 used to form the second top coat film 6 is about 0.7 to 1.2 [g / scale 2 ]. As the paint 13, for example, an acrylic resin, amino alkyd, vinyl resin, epoxy resin, polyurethane resin or the like can be selected.

ここで第1上塗塗装膜5は、フローコーター8で塗料14を塗布し鏡面仕上げされるが、最終的には第2上塗塗装膜6で被覆される。そのため、第1上塗塗装膜5を構成する塗料14は、耐衝撃性、耐磨耗性等の機能を有する必要性が少なく比較的安価な素材を選定することができる。そしてフローコーター8によって多量の塗料14が床材1(下塗塗装膜4)の上に塗布されて、第1上塗塗装膜5が形成される。   Here, the first top coat film 5 is mirror-finished by applying the paint 14 with the flow coater 8, but is finally covered with the second top coat film 6. Therefore, it is possible to select a relatively inexpensive material for the coating material 14 constituting the first top coat film 5 with little need for functions such as impact resistance and wear resistance. Then, a large amount of coating material 14 is applied on the flooring 1 (undercoat coating film 4) by the flow coater 8, and the first topcoat coating film 5 is formed.

また、鏡面仕上げされた第1上塗塗装膜5の上に、ロールコーター9で塗料13が塗布され、第2上塗塗装膜6が形成される。第2上塗塗装膜6は、最も外側(最表面)に形成され、耐衝撃性や床材1(各塗装膜)に傷が付かないように保護する機能、アレルギーを抑制する機能等を保持させるために、比較的高価な塗料で形成されている。ところが、第2上塗塗装膜6はロールコーター9によって塗布されるので、塗装膜を薄く形成することができる。よって、塗料14は高価ではあるが、少量で第2上塗塗装膜6を薄く構成することができる。その結果、第1上塗塗装膜5と第2上塗塗装膜6からなる上塗塗装膜7を良好に仕上げると共に、上塗塗装膜7を安価に形成することができる。第1上塗塗装膜5、第2上塗塗装膜6を形成する塗料に使用される樹脂はアクリルウレタン樹脂が望ましいものである。   Further, the paint 13 is applied by the roll coater 9 on the mirror-finished first top coat film 5 to form the second top coat film 6. The second overcoating film 6 is formed on the outermost side (outermost surface) and retains the impact resistance, the function of protecting the flooring 1 (each coating film) from being damaged, the function of suppressing allergies, and the like. Therefore, it is formed with a relatively expensive paint. However, since the second top coat film 6 is applied by the roll coater 9, the coat film can be formed thin. Therefore, although the paint 14 is expensive, the second top coat film 6 can be made thin with a small amount. As a result, the top coating film 7 composed of the first top coating film 5 and the second top coating film 6 can be satisfactorily finished, and the top coating film 7 can be formed at low cost. The resin used for the paint forming the first top coat film 5 and the second top coat film 6 is preferably an acrylic urethane resin.

1 床材
2 下地合板(基板)
3 表面板
4 下塗・中塗装膜
5 第1上塗塗装膜
6 第2上塗塗装膜
7 上塗塗装膜
8 フローコーター
9 ロールコーター
1 Floor material 2 Base plywood (substrate)
3 Surface plate 4 Undercoating / intermediate coating film 5 First overcoating film 6 Second overcoating film 7 Overcoating film 8 Flow coater 9 Roll coater

Claims (1)

基板に表面板を貼着した床材を塗装する方法であって、前記表面板の上塗り塗装をフローコーターで実施した後、アレルギー抑制剤等の機能性材料を混合したアクリルウレタン等の塗料をロールコーターで仕上げ塗装することを特徴とする床材の塗装方法。   A method of painting a flooring material having a surface plate adhered to a substrate, wherein the surface plate is overcoated with a flow coater, and then a paint such as acrylic urethane mixed with a functional material such as an allergy inhibitor is rolled. A method of painting flooring, characterized by finishing with a coater.
JP2011181365A 2011-08-23 2011-08-23 Method for coating floor material Pending JP2013044124A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015016601A (en) * 2013-07-10 2015-01-29 パナソニック株式会社 Wood decorative sheet manufacturing method

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JPS5493030A (en) * 1977-12-30 1979-07-23 Hiroshi Maeda Method of making decorative panel
JP2004338389A (en) * 2003-04-24 2004-12-02 Natoko Kk Woody flooring material and its manufacturing method
JP2008239721A (en) * 2007-03-26 2008-10-09 Matsushita Electric Works Ltd Photocurable coating material for flooring topcoat and flooring material coated therewith
JP2011031496A (en) * 2009-07-31 2011-02-17 Natoko Kk Non-aqueous coating material, method of manufacturing coated wooden floor material, and coated wooden floor material

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JPS5493030A (en) * 1977-12-30 1979-07-23 Hiroshi Maeda Method of making decorative panel
JP2004338389A (en) * 2003-04-24 2004-12-02 Natoko Kk Woody flooring material and its manufacturing method
JP2008239721A (en) * 2007-03-26 2008-10-09 Matsushita Electric Works Ltd Photocurable coating material for flooring topcoat and flooring material coated therewith
JP2011031496A (en) * 2009-07-31 2011-02-17 Natoko Kk Non-aqueous coating material, method of manufacturing coated wooden floor material, and coated wooden floor material

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