JP4055498B2 - Manufacturing method of decorative panel - Google Patents

Manufacturing method of decorative panel Download PDF

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Publication number
JP4055498B2
JP4055498B2 JP2002206071A JP2002206071A JP4055498B2 JP 4055498 B2 JP4055498 B2 JP 4055498B2 JP 2002206071 A JP2002206071 A JP 2002206071A JP 2002206071 A JP2002206071 A JP 2002206071A JP 4055498 B2 JP4055498 B2 JP 4055498B2
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Japan
Prior art keywords
water
substrate
absorbing
decorative sheet
pur
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Japanese (ja)
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JP2004042564A (en
Inventor
直彦 前田
典利 亀山
博之 石川
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Panasonic Electric Works Co Ltd
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Matsushita Electric Works Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined

Description

【0001】
【発明の属する技術分野】
本発明は、住宅用の建材や浴室の壁等に用いられる化粧パネルの製造方法に関するものである。
【0002】
【従来の技術】
近年、ラミネートによる建材用化粧パネルを製造するに当たって、接着剤としてPURが用いられてきている。PURとは「Poly Urethane Reactives」の略称で、反応型ホットメルトのことである。通常のホットメルトと同様に固形分100%であるが、成分の中に水分と反応する官能基を含んでいるため、冷却硬化後、基板や化粧シートに付着している水分やそれらを通して与えられる水分と反応し、反応後は加熱しても溶融せず、高い接着強度を有するという特徴を有している。このような特徴を有するPURを接着剤として用いるようになったのは、従来用いられている溶剤型2液ウレタン系接着剤では、環境面で溶剤飛散の問題があり、また、通常のホットメルトでは、接着の耐久性に不安があるからである。
【0003】
ここで、ラミネートによる建材用化粧パネルを製造するに当たって、接着剤としてPURを用いる場合、PURの反応においては水分が必要である。そして、例えば、基板が木質系材料であれば、材料そのものに水分を含んでいるため、また、シートが紙のような多孔質系材料であれば、透湿性が大きいため問題はないが、透湿性、吸湿性の無い又は小さい基板と化粧シートとをPURを接着剤として用いて接着する場合、基板、シートの貼り合わせにおいてなかなか水分が供給されず、反応硬化に時間がかかり、養生時間を長く設ける必要があり、生産性が悪くなるという問題がある。
【0004】
【発明が解決しようとする課題】
本発明は上記の点に鑑みてなされたものであり、透湿性、吸湿性の無い又は小さい基板と化粧シートとをPURを接着剤として接着するに当たって反応硬化時間を短縮し、生産性を向上することができる化粧パネルの製造方法を提供することを課題とするものである。
【0005】
【課題を解決するための手段】
上記課題を解決するために本発明に係る化粧パネルの製造方法は、SMC成形品の基板1と合成樹脂又は金属からなる化粧シート2とをPUR3を介して貼り合わせて化粧パネルを製造するに当たって、貼り合わせる前に水分を基板1又は化粧シート2に付与し、反応を促進させて化粧パネルを製造するものにおいて、基板1を成形する際に、成形材料の表面に基板の表面材料として浸水性又は吸水性材料を置いて、基板1の表面に浸水性又は吸水性の表層4を形成し、このように成形された浸水性又は吸水性の表層4を有する基板1の表層4側に水を塗布し、その後に裏面にPUR3が塗布された化粧シート2を熱圧ゴムロール7aにより表面に水が塗布された基板1に圧着し、更に、冷圧ゴムロール7bにより押圧して貼り合わせることを特徴とするものである。このような方法を採用することで、合成樹脂成形体の基板1と合成樹脂又は金属からなる化粧シート2とを反応型ホットメルトであるPUR3を介して貼り合わせるに当たって、水分の供給が確実に行われてPUR3の反応硬化時間を短縮して養生時間を短縮できるものである。しかも、浸水性又は吸水性の表層4に水を保水できて、合成樹脂成形体の基板1と合成樹脂又は金属からなる化粧シート2とをPUR3を介して貼り合わせるに当たって、表層4に保水された水分をPUR3の反応のために確実に供給できて、硬化時間を短縮して養生時間を短縮できるものである。
【0007】
【発明の実施の形態】
以下、本発明を添付図面に示す実施形態に基づいて説明する。
【0008】
図1には基板1に化粧シート2を貼り合わせるための化粧パネルのラミネート装置の一例が示してある。化粧パネルのラミネート装置は、ベルトコンベアのような基板送りコンベア5と、基板送りコンベア5で送られる基板1の表面に水を供給する水供給部6と、水供給部6で表面に水を供給された基板1表面に化粧シート2を貼り付けるための化粧シート貼付け部7と、化粧シート貼付け部7に化粧シート2を供給するための化粧シート供給部8と、化粧シート2に接着剤として用いるPURを塗布するための塗布装置9とで構成してある。
【0009】
水供給部6は基板送りコンベア5の上方にロールコータ6aを配置して構成してあり、基板送りコンベア5上に載置された状態で搬送される基板1の表面にロールコータ6aにより水10を塗布することで水分を付与するようになっている。
【0010】
化粧シート供給部8は供給ローラ8a群により構成してあり、また、化粧シート貼付け部7はラミネート用ロールにより構成してあり、ラミネート用ロールとしては熱圧ゴムロール7a、冷圧ゴムロール7bが用いてある。
【0011】
塗布装置9は化粧シート供給部8の途中に設けてある。
【0012】
基板1は合成樹脂成形体よりなりSMC成形品(シートモールドコンパウンド成形品)であり、表面に浸水性又は吸水性の表層4備えたものである。すなわち、基板1を成形する際に、成形材料の表面に浸水性又は吸水性材料を置いて基板1を成形し、このように浸水性又は吸水性の表層4を有する基板1の表層側に化粧シート2をPUR3を介して貼り合わせることで、基板1の表面に水を塗布した際に水の保持効果(保水効果)が得られるものである。化粧シート2は合成樹脂シート又は金属シートよりなるものであり、一例を挙げるとポリプロピレンシート2aの表面に印刷層2bを介してPETシート2cを積層一体化した複合シートであり、図2に示すように化粧シート2である複合シートの裏面のポリプロピレンシート2aに塗布装置9によりPUR3を塗布するようになっている。
【0013】
しかして、図1のような化粧パネルのラミネート装置を用いて化粧パネルを製造するのであるが、化粧パネルの製造に当たっては次のようにして行うものである。
【0014】
基板送りコンベア5で送られる基板1の表面にロールコータ6aにより水10が塗布され、この水10を表面に塗布された基板1は化粧シート供給部8側に移送される。一方、供給ローラ7a群により化粧シート供給部8側に供給される化粧シート2には裏面に塗布装置9によりPUR3が塗布され、この裏面にPUR3が塗布された化粧シート2が熱圧ゴムロール7aにより表面に水10が塗布された基板1に圧着され、更に、冷圧ゴムロール7bに押圧される。ここで、熱圧ゴムロール7aは例えば硬度50°、温度60℃であり、冷圧ゴムロール7bは硬度50°、温度20℃である。
【0015】
ロールコータ6aにより基板1の表面に塗布する水10は塗布するPUR3の反応に必要な水分量となるように計算により求めた量を塗布するものである。
【0016】
PUR3の反応に必要な水分量は以下の用にして求めるものである。
【0017】
すなわち、PUR3の主原料はポリイソシアネートとポリオールを反応させて得られる両端末がイソシアネートのプレポリマーであり、反応機構は下記の化1に示すような、1)鎖延長反応、2)架橋反応とがある。
【0018】
【化1】

Figure 0004055498
【0019】
上記化1に示す1)鎖延長反応、2)架橋反応において鎖延長反応が主反応であり、その一般反応式は下記の化2で示す式の通りである。
【0020】
【化2】
Figure 0004055498
【0021】
そして、プレポリマー−nモルに対して水n+1モルが反応するものであり、nが十分に大きければ、同じモル数で反応することになる。
【0022】
例えば、PUR3を80g/m塗布する場合、PUR(YRO10−8、日立化成ポリマー製)のイソシアネート基(−NCO)%=1.6%として計算すると、80g/m中のプレポリマーのモル数は、
80×0.16×1/{(14+12+16)×2}=0.015(モル)
であり、従って、必要な水分量は、
18(g/モル)×0.015(モル)=0.27(g) → 0.27(g/m)である。
【0024】
ここで、基板1を合成樹脂により成形する際に、同時成形により表面に浸水性又は吸水性の表層4を形成するので、生産性はほぼ同じでありながら、合成樹脂成形体よりなる基板1の表面への高い保水効果が得られるものである。また、成形により得られた基板1は通常、金型に剥離剤を塗布するか、又は樹脂内部に離形剤を添加するため、その表面接着性は極めて小さい。そこで、貼り合わせを行う場合、接着性を上げる目的で研磨を行うが、この場合は基板1表面に浸水性又は吸水性の表層4を有するので接着性が改善されており、研磨は不要となるものである。
【0026】
なお、上記各実施形態においては、基板1の表面にロールコータで水を塗布して水分を付与するようにした例を示したが、ロールコータ以外の方法で基板1の表面に水分を付与するようにしてもよく、また、化粧シート2の裏面側に水分を付与するようにしてもよく、あるいは基板1の表面及び化粧シート2の裏面の両方に水分を付与するようにしてもよいものである。
【0027】
【実施例】
以下、本発明を実施例に基づいて説明する。
(実施例1)
(1) 金型成形により繊維強化プラスチック製の基板1を成形するに当たって、基板1の成形時に、成形材料の表面にポリエステル系不織布を置いて基板1の表面に浸水性又は吸水性の表層4を成形した。このように成形した基板1の表面の研磨は行わなかった。
【0028】
(2) ポリプロピレンシート2a(70μm)の表面に印刷層2bを介してPETシート2c(100μm)を積層一体化した複合シートよりなる化粧シート2の裏面(ポリプロピレンシート2aの裏面)にPUR(YRO10−8、日立化成ポリマー製)を塗布温度120℃で80μm厚で塗布した後、(1)で得た基板1の上にロールコータにより約0.3g/mの水分を付与し、ラミネートロールを構成する熱圧ゴムロール7a、冷圧ゴムロール7bにより貼り合わせて化粧パネルを得た。使用した熱圧ゴムロール7aは硬度50°、温度60℃であり、冷圧ゴムロール7bは硬度50°、温度20℃である。
【0029】
本実施例において使用したラミネート装置は図1に示すようなものを用いた。
【0034】
【発明の効果】
上記のように本発明の請求項1記載の発明にあっては、SMC成形品の基板と合成樹脂又は金属からなる化粧シートとをPURを介して貼り合わせて化粧パネルを製造するに当たって、貼り合わせる前に水分を基板又は化粧シートに付与し、反応を促進させて化粧パネルを製造するものにおいて、基板を成形する際に、成形材料の表面に基板の表面材料として浸水性又は吸水性材料を置いて、基板の表面に浸水性又は吸水性の表層を形成し、このように成形された浸水性又は吸水性の表層を有する基板の表層側に水を塗布し、その後に裏面にPURが塗布された化粧シートを熱圧ゴムロールにより表面に水が塗布された基板に圧着し、更に、冷圧ゴムロールにより押圧して貼り合わせるので、水分の供給が確実に行われて反応型ホットメルトであるPURの反応硬化時間を短縮でき、これにより養生時間が短縮できるので、生産性が向上するものであり、また、PURを接着剤として接着するので、高い接着強度を有すると共に溶剤飛散の問題もなくて環境面でも優れているものである。特に、合成樹脂成形体の基板の表層が浸水性又は吸水性を有しているので、浸水性又は吸水性の表層に水を保水できて、合成樹脂成形体の基板と合成樹脂又は金属からなる化粧シートとをPURを介して貼り合わせるに当たって、表層に保水された水分をPURの反応のために確実に供給できて、硬化時間を短縮して養生時間を短縮できるものであり、また、基板の表面に浸水性又は吸水性の表層を有しているので、接着性が向上され、この結果、基板の表面の接着性を上げるための研磨が不要である。
【図面の簡単な説明】
【図1】 本発明に用いる化粧パネルのラミネート装置の概略構成図である。
【図2】 同上の化粧シートの裏面に塗布装置によりPURを塗布している状態の説明図である。
【符号の説明】
1 基板
2 化粧シート
3 PUR
4 表層[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for manufacturing a decorative panel used for a building material for a house, a bathroom wall, or the like.
[0002]
[Prior art]
In recent years, PUR has been used as an adhesive in manufacturing a decorative panel for building materials using a laminate. PUR is an abbreviation for “Poly Urethane Reactives” and is a reactive hot melt. It has a solid content of 100% as in normal hot melt, but since it contains functional groups that react with moisture in the components, it is given through moisture adhering to the substrate or decorative sheet after cooling and curing. It reacts with moisture and does not melt even when heated after the reaction, and has a high adhesive strength. PUR having such characteristics has been used as an adhesive because the conventional solvent-type two-component urethane-based adhesive has a problem of solvent scattering in terms of the environment, and a normal hot melt Then, it is because there is anxiety about the durability of adhesion.
[0003]
Here, in the case of using a PUR as an adhesive in manufacturing a decorative panel for building material by lamination, moisture is required in the reaction of PUR. For example, if the substrate is a wood-based material, the material itself contains moisture. If the sheet is a porous material such as paper, there is no problem because the moisture permeability is large. When bonding a wet and hygroscopic or small substrate to a decorative sheet using PUR as an adhesive, moisture is not easily supplied when the substrate and sheet are bonded together, which takes time for reaction curing and lengthens the curing time. There is a problem that it is necessary to provide it, and productivity becomes worse.
[0004]
[Problems to be solved by the invention]
The present invention has been made in view of the above points, and shortens the reaction curing time and improves productivity in bonding moisture-permeable, non-hygroscopic or small substrates and decorative sheets with PUR as an adhesive. It is an object of the present invention to provide a method for manufacturing a decorative panel that can be used.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, a method for manufacturing a decorative panel according to the present invention is as follows. In manufacturing a decorative panel by bonding a substrate 1 of an SMC molded product and a decorative sheet 2 made of synthetic resin or metal via PUR3, In the case of manufacturing a decorative panel by applying moisture to the substrate 1 or the decorative sheet 2 before bonding and promoting the reaction, when the substrate 1 is molded, the surface of the molding material is submerged as the surface material of the substrate. A water-absorbing material is placed to form a water-absorbing or water-absorbing surface layer 4 on the surface of the substrate 1, and water is applied to the surface layer 4 side of the substrate 1 having the water-absorbing or water-absorbing surface layer 4 thus formed. Then, the decorative sheet 2 having PUR3 applied on the back surface is pressed against the substrate 1 having water applied on the surface by the hot-pressing rubber roll 7a, and further pressed and pasted together by the cold-pressing rubber roll 7b. It is characterized by. By adopting such a method, moisture can be reliably supplied when the synthetic resin molded substrate 1 and the decorative sheet 2 made of synthetic resin or metal are bonded to each other via the PUR 3 which is a reactive hot melt. In other words, the curing time can be shortened by shortening the reaction hardening time of PUR3. Moreover, water can be retained in the water-absorbing or water-absorbing surface layer 4, and the surface layer 4 was retained when the substrate 1 of the synthetic resin molding and the decorative sheet 2 made of synthetic resin or metal were bonded together via the PUR3. Water can be reliably supplied for the reaction of PUR3, and the curing time can be shortened to shorten the curing time.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.
[0008]
FIG. 1 shows an example of a laminating apparatus for a decorative panel for attaching a decorative sheet 2 to a substrate 1. The decorative panel laminating apparatus includes a substrate feed conveyor 5 such as a belt conveyor, a water supply unit 6 for supplying water to the surface of the substrate 1 fed by the substrate feed conveyor 5, and a water supply unit 6 for supplying water to the surface. Used as an adhesive for the decorative sheet 2, a decorative sheet attaching unit 7 for attaching the decorative sheet 2 to the surface of the substrate 1, a decorative sheet supplying unit 8 for supplying the decorative sheet 2 to the decorative sheet attaching unit 7 It is comprised with the coating device 9 for apply | coating PUR.
[0009]
The water supply unit 6 is configured by disposing a roll coater 6 a above the substrate feed conveyor 5, and water 10 is formed on the surface of the substrate 1 being transported while being placed on the substrate feed conveyor 5 by the roll coater 6 a. The water is applied by applying.
[0010]
The decorative sheet supply unit 8 is configured by a group of supply rollers 8a, and the decorative sheet attaching unit 7 is configured by a laminating roll. As the laminating roll, a hot-pressure rubber roll 7a and a cold-pressure rubber roll 7b are used. is there.
[0011]
The coating device 9 is provided in the middle of the decorative sheet supply unit 8.
[0012]
The substrate 1 is made of a synthetic resin molded body, is an SMC molded product (sheet mold compound molded product), and has a surface 4 that is water-absorbing or water-absorbing on the surface. That is, when forming the substrate 1, and forming the substrate 1 at a water permeable or water-absorbing material on the surface of the molding material, the decorative on the surface layer side of the substrate 1 having a water permeable or water-absorbing surface layer 4 thus By sticking the sheet 2 through the PUR 3, a water retention effect (water retention effect) is obtained when water is applied to the surface of the substrate 1. The decorative sheet 2 is made of a synthetic resin sheet or a metal sheet. For example, the decorative sheet 2 is a composite sheet in which a PET sheet 2c is laminated and integrated on the surface of a polypropylene sheet 2a via a printing layer 2b, as shown in FIG. Further, PUR3 is applied to the polypropylene sheet 2a on the back surface of the composite sheet which is the decorative sheet 2 by the application device 9.
[0013]
Thus, a decorative panel is manufactured using the decorative panel laminating apparatus as shown in FIG. 1, and the decorative panel is manufactured as follows.
[0014]
Water 10 is applied to the surface of the substrate 1 fed by the substrate feed conveyor 5 by the roll coater 6a, and the substrate 1 coated with the water 10 is transferred to the decorative sheet supply unit 8 side. On the other hand, the decorative sheet 2 supplied to the decorative sheet supply unit 8 side by the supply roller 7a group is coated with PUR3 on the back surface by the coating device 9, and the decorative sheet 2 coated with PUR3 on the back surface is heated by the hot-pressure rubber roll 7a. It is pressed against the substrate 1 having the surface coated with water 10 and further pressed against the cold-pressure rubber roll 7b. Here, the hot-pressed rubber roll 7a has, for example, a hardness of 50 ° and a temperature of 60 ° C., and the cold-pressed rubber roll 7b has a hardness of 50 ° and a temperature of 20 ° C.
[0015]
The water 10 applied to the surface of the substrate 1 by the roll coater 6a is applied in an amount determined by calculation so that the amount of water required for the reaction of the PUR 3 to be applied is obtained.
[0016]
The amount of water necessary for the reaction of PUR3 is determined as follows.
[0017]
That is, the main raw material of PUR3 is a prepolymer of isocyanate obtained by reacting polyisocyanate and polyol, and the reaction mechanism is 1) chain extension reaction, 2) crosslinking reaction as shown in the following chemical formula 1 There is.
[0018]
[Chemical 1]
Figure 0004055498
[0019]
The chain extension reaction is the main reaction in the 1) chain extension reaction and 2) the cross-linking reaction shown in the above chemical formula 1, and the general reaction formula is as shown in the following chemical formula 2.
[0020]
[Chemical 2]
Figure 0004055498
[0021]
And n + 1 mol of water reacts with respect to -n mol of prepolymer. If n is sufficiently large, it reacts with the same number of moles.
[0022]
For example, when 80 g / m 2 of PUR3 is applied, the molar number of prepolymer in 80 g / m 2 is calculated by assuming that the isocyanate group (—NCO)% of PUR (YRO10-8, manufactured by Hitachi Chemical) is 1.6%. The number is
80 × 0.16 × 1 / {(14 + 12 + 16) × 2} = 0.015 (mol)
Therefore, the amount of water required is
18 (g / mol) × 0.015 (mol) = 0.27 (g) → 0.27 (g / m 2 ).
[0024]
Here, when the substrate 1 is molded from the synthetic resin, the surface layer 4 of the water immersion or water absorption is formed on the surface by simultaneous molding, so that the productivity of the substrate 1 made of the synthetic resin molded body is substantially the same. A high water retention effect on the surface can be obtained. Moreover, since the board | substrate 1 obtained by shaping | molding normally applies a release agent to a metal mold | die or adds a mold release agent inside resin, the surface adhesiveness is very small. Therefore, when bonding is performed, polishing is performed for the purpose of improving the adhesiveness. In this case, since the surface 1 of the substrate 1 has a water-absorbing or water-absorbing surface layer 4, the adhesiveness is improved, and polishing is unnecessary. Is.
[0026]
In each of the above-described embodiments, an example has been described in which water is applied to the surface of the substrate 1 by a roll coater to apply moisture, but moisture is applied to the surface of the substrate 1 by a method other than the roll coater. In addition, moisture may be applied to the back side of the decorative sheet 2, or moisture may be applied to both the front surface of the substrate 1 and the back surface of the decorative sheet 2. is there.
[0027]
【Example】
Hereinafter, the present invention will be described based on examples.
Example 1
(1) In forming the substrate 1 made of fiber reinforced plastic by mold molding, when the substrate 1 is molded, a polyester nonwoven fabric is placed on the surface of the molding material, and the water-absorbing or water-absorbing surface layer 4 is formed on the surface of the substrate 1. Molded . The surface of the substrate 1 thus molded was not polished.
[0028]
(2) PUR (YRO10−) on the back surface of the decorative sheet 2 (back surface of the polypropylene sheet 2a) made of a composite sheet in which the PET sheet 2c (100 μm) is laminated and integrated on the surface of the polypropylene sheet 2a (70 μm) via the printing layer 2b. 8) (manufactured by Hitachi Chemical) at a coating temperature of 120 ° C. with a thickness of 80 μm, and then applying a moisture of about 0.3 g / m 2 on the substrate 1 obtained in (1) with a roll coater. A decorative panel was obtained by laminating with the constituting hot-pressure rubber roll 7a and cold-pressure rubber roll 7b. The hot-pressed rubber roll 7a used has a hardness of 50 ° and a temperature of 60 ° C, and the cold-pressed rubber roll 7b has a hardness of 50 ° and a temperature of 20 ° C.
[0029]
The laminating apparatus used in this example was as shown in FIG .
[0034]
【The invention's effect】
As described above, in the invention according to the first aspect of the present invention, the SMC molded product and the decorative sheet made of synthetic resin or metal are bonded to each other via the PUR, and the decorative panel is bonded. In the case of manufacturing a decorative panel by previously applying moisture to the substrate or decorative sheet to promote the reaction, when the substrate is molded, a water-absorbing or water-absorbing material is placed on the surface of the molding material as the surface material of the substrate. Then, a water-absorbing or water-absorbing surface layer is formed on the surface of the substrate, water is applied to the surface layer side of the substrate having the water-absorbing or water-absorbing surface layer thus formed , and then PUR is applied to the back surface. The hot-pressed rubber sheet is pressure-bonded to a substrate with water applied on the surface, and the cold-pressed rubber roll is pressed and bonded together. The reaction hardening time of PUR can be shortened, so that the curing time can be shortened, so that productivity is improved, and since PUR is bonded as an adhesive, it has a high adhesive strength and solvent scattering problem. There is no environmental aspect. In particular, since the surface layer of the substrate of the synthetic resin molding has water permeability or water absorption, water can be retained in the surface of the water immersion or water absorption layer, and the substrate of the synthetic resin molding and the synthetic resin or metal are included. When bonding the decorative sheet to the PUR, the moisture retained on the surface layer can be reliably supplied for the reaction of the PUR, the curing time can be shortened and the curing time can be shortened. Since the surface has a water-absorbing or water-absorbing surface layer, the adhesiveness is improved. As a result, polishing for increasing the adhesiveness of the surface of the substrate is unnecessary.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of a laminating apparatus for a decorative panel used in the present invention.
FIG. 2 is an explanatory view showing a state in which PUR is applied to the back surface of the decorative sheet by the application device .
[Explanation of symbols]
1 substrate 2 decorative sheet 3 PUR
4 Surface

Claims (1)

SMC成形品の基板と合成樹脂又は金属からなる化粧シートとをPURを介して貼り合わせて化粧パネルを製造するに当たって、貼り合わせる前に水分を基板又は化粧シートに付与し、反応を促進させて化粧パネルを製造するものにおいて、基板を成形する際に、成形材料の表面に基板の表面材料として浸水性又は吸水性材料を置いて、基板の表面に浸水性又は吸水性の表層を形成し、このように成形された浸水性又は吸水性の表層を有する基板の表層側に水を塗布し、その後に裏面にPURが塗布された化粧シートを熱圧ゴムロールにより表面に水が塗布された基板に圧着し、更に、冷圧ゴムロールにより押圧して貼り合わせることを特徴とする化粧パネルの製造方法。 In manufacturing a decorative panel by bonding a substrate of an SMC molded product and a decorative sheet made of synthetic resin or metal via PUR, moisture is applied to the substrate or the decorative sheet before bonding to promote the reaction and make up In manufacturing a panel, when a substrate is molded, a water-absorbing or water-absorbing material is placed on the surface of the molding material as a surface material of the substrate to form a water-absorbing or water-absorbing surface layer on the surface of the substrate. Apply water to the surface layer side of a substrate with a water-absorbing or water-absorbing surface layer formed in this way, and then press the decorative sheet with PUR applied to the back side to the substrate with water applied to the surface with a hot-pressure rubber roll Furthermore, the manufacturing method of the decorative panel characterized by pressing and sticking together with a cold-pressure rubber roll.
JP2002206071A 2002-07-15 2002-07-15 Manufacturing method of decorative panel Expired - Fee Related JP4055498B2 (en)

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JP4792856B2 (en) * 2005-07-25 2011-10-12 パナソニック電工株式会社 Method of sticking a decorative sheet to a substrate
KR200461368Y1 (en) 2009-04-13 2012-07-11 김형섭 apparatus for applying adhesive and paper to polystyrene foam board
CN104553298A (en) * 2014-12-02 2015-04-29 河北海贺胜利印刷机械集团有限公司 Water painting device and water painting method for roll paper PUR (Polyurethane Rerctive) gum film laminator

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