JP3244612B2 - Method for producing double-sided decorative board and decorative board - Google Patents
Method for producing double-sided decorative board and decorative boardInfo
- Publication number
- JP3244612B2 JP3244612B2 JP04301595A JP4301595A JP3244612B2 JP 3244612 B2 JP3244612 B2 JP 3244612B2 JP 04301595 A JP04301595 A JP 04301595A JP 4301595 A JP4301595 A JP 4301595A JP 3244612 B2 JP3244612 B2 JP 3244612B2
- Authority
- JP
- Japan
- Prior art keywords
- resin
- decorative board
- paper
- double
- thermosetting resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Panels For Use In Building Construction (AREA)
- Floor Finish (AREA)
- Laminated Bodies (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は両面化粧板の製造方法及
び化粧板に関し、特に、表面性状を劣化させることなく
従来よりも短い時間で両面の同時熱圧成形を可能とした
両面化粧板の製造方法及び該製造方法により製造される
化粧板に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a double-faced decorative sheet and a decorative sheet, and more particularly, to a double-sided decorative sheet which can be simultaneously hot-pressed on both sides in a shorter time than before without deteriorating surface properties. The present invention relates to a manufacturing method and a decorative board manufactured by the manufacturing method.
【０００２】[0002]
【従来の技術】パーチクルボード、合板、ＭＤＦのよう
な基材の両面に樹脂含浸紙を積層し、それをホットプレ
スの上下の熱盤間に載置して、両面を同時熱圧成形する
ことにより、両面化粧板を製造する方法は知られてい
る。用いられる樹脂含浸紙は、紙、布、不織布等の基材
シートをメラミン樹脂、ジアリルフタレート樹脂、不飽
和ポリエステル樹脂のような熱硬化性樹脂に浸漬し、そ
れを、樹脂が未硬化の状態で溶剤を揮発し乾燥させたも
のであり、それを合板等の基材の両面に積層し、熱盤に
より加熱圧締して、樹脂の硬化による表面被膜の形成と
基材との接着を同時に行うことにより、両面化粧板が製
造される。熱盤と積層体の表面との間に、鏡面板あるい
は梨地模様等の凹凸模様を表面に持つ凹凸板を介在させ
て熱圧成形することも行われる。2. Description of the Related Art A resin-impregnated paper is laminated on both sides of a base material such as a particle board, a plywood, and an MDF, and placed between hot plates above and below a hot press, and both sides are simultaneously hot-pressed. A method for producing a double-sided decorative board is known. The resin-impregnated paper used is a paper, cloth, a base sheet such as a non-woven fabric, immersed in a thermosetting resin such as a melamine resin, a diallyl phthalate resin, and an unsaturated polyester resin, and the resin is in an uncured state. Solvent is volatilized and dried, and it is laminated on both sides of the base material such as plywood, and heated and pressed with a hot plate to simultaneously form the surface film by curing the resin and adhere to the base material. Thereby, a double-sided decorative board is manufactured. Hot-press molding is also carried out by interposing an uneven plate having an uneven pattern such as a mirror plate or a satin pattern on the surface between the hot platen and the surface of the laminate.
【０００３】[0003]
【発明が解決しようとする課題】このような両面化粧板
の製造方法において、図１に示すように、通常、基材１
両面に樹脂含浸紙２ａ、２ｂを貼合し積層した積層体を
下方に位置するすでに加熱されている熱盤５上に先ず載
置し、その後ホットプレスを操作して上方の熱盤６ある
いは上下の熱盤５、６を移動させ、該積層体を加熱圧締
する。従って、下方の熱盤５に接する側の樹脂含浸紙２
ａ、すなわち基材１の下面側に配置される樹脂含浸紙２
ａは、上面側に配置される樹脂含浸紙２ｂよりも、熱盤
５上に載置してから圧締に入るまでの時間（タッチタイ
ム）だけ長い時間加熱される。図において、４ａ、４ｂ
は鏡面板あるいは梨地模様等の凹凸模様を表面に持つ凹
凸板である。In such a method for manufacturing a double-sided decorative board, as shown in FIG.
The laminated body, in which the resin-impregnated papers 2a and 2b are bonded and laminated on both sides, is first placed on the already heated heating platen 5 located below, and then the hot press is operated by operating the hot press. Then, the hot plates 5 and 6 are moved, and the laminate is heated and pressed. Therefore, the resin-impregnated paper 2 on the side in contact with the lower hot platen 5
a, that is, the resin-impregnated paper 2 disposed on the lower surface side of the base material 1
“a” is heated for a time longer than the resin-impregnated paper 2 b disposed on the upper surface side by a time (touch time) from the time when the paper is placed on the hot platen 5 to the time when pressing starts. In the figure, 4a, 4b
Is an uneven plate having an uneven pattern such as a mirror plate or a satin pattern on the surface.
【０００４】熱硬化性樹脂の硬化速度は種々の方法によ
り調整可能であり、例えば、メラミン樹脂では酸性触媒
（硬化抑制タイプと硬化促進タイプの配合割合）の種類
や量を制御することにより、また、ジアリルフタレート
樹脂では熱や有機過酸化物の量を制御することにより、
硬化速度の調整が行われる。加熱時間の長短はホットプ
レスの１サイクルに要する時間に大きく関与しており、
化粧合板の生産性を高めるためには加熱時間が短いこと
が望まれるが、上記のような製造方法において、熱硬化
性樹脂として硬化速度の早い樹脂（例えばメラミン樹脂
の場合、硬化時間２０〜３０秒程度）を用いると、前記
タッチタイム内に基材下面側の樹脂の硬化が必要以上に
進行してしまい、その間は圧締力が作用していないこと
から樹脂が流れ不良を起こし、化粧板表面の凹凸模様が
はっきりと発現しない場合や表面被膜が不均一な厚みと
なる場合が生じる。The curing speed of a thermosetting resin can be adjusted by various methods. For example, in the case of a melamine resin, by controlling the type and amount of an acidic catalyst (mixing ratio of a curing suppressing type and a curing accelerating type), In diallyl phthalate resin, by controlling the amount of heat and organic peroxide,
Adjustment of the curing speed is performed. The length of heating time greatly affects the time required for one cycle of hot pressing.
In order to increase the productivity of decorative plywood, it is desired that the heating time be short. However, in the above-described production method, a resin having a high curing rate as the thermosetting resin (for example, in the case of a melamine resin, a curing time of 20 to 30). When about (seconds) is used, the curing of the resin on the lower surface side of the base material progresses more than necessary within the touch time, and during that time, the resin flows poorly because the pressing force is not applied, and the decorative board In some cases, the uneven pattern on the surface does not clearly appear or the surface coating has an uneven thickness.
【０００５】そのために、従来、両面化粧板を製造する
に際しては、表面と裏面の化粧面を別工程（２工程）で
行うか、両面熱圧同時成形を行う場合には、前記タッチ
タイム内において熱硬化がほとんど進行せず、圧締が開
始してから実質的な硬化が開始するように硬化速度を遅
くした熱硬化性樹脂（例えばメラミン樹脂の場合、硬化
時間４０〜４５秒程度）を用いさるを得ず、生産性を向
上させる上での障害となっていた。[0005] Therefore, conventionally, when manufacturing a double-sided decorative board, the decorative face on the front side and the back side are performed in separate steps (two steps), or when simultaneous double-sided hot-press molding is performed, the touch time is limited. A thermosetting resin (hardening time of about 40 to 45 seconds in the case of a melamine resin) is used in which the thermosetting hardly progresses and the curing speed is reduced so that substantial hardening starts after the pressing starts. Obviously, this was an obstacle to improving productivity.
【０００６】本発明の目的は、従来の両面化粧板の製造
方法の持つ上記の不都合を解消した製造方法を提供する
ことにあり、より具体的には、表面性状を低下させるこ
となしに、短い加熱時間で両面を同時に熱圧成形するこ
とのできる両面化粧板の製造方法を提供することにあ
る。本発明の他の目的は、そのような製造方法によって
製造された両面化粧板を提供することにある。[0006] An object of the present invention is to provide a production method which solves the above-mentioned disadvantages of the conventional method for producing a double-sided decorative board, and more specifically, to provide a production method of a double-sided veneer without reducing the surface properties. It is an object of the present invention to provide a method for producing a double-sided decorative board that can simultaneously perform hot-press molding on both sides during a heating time. Another object of the present invention is to provide a double-sided decorative board manufactured by such a manufacturing method.
【０００７】[0007]
【課題を解決するための手段】上記の目的を達成するた
めの本発明による両面化粧板の製造方法は、基本的に、
化粧シート層と、接着剤層と、基材と、必要に応じて接
着剤層と、未硬化熱硬化樹脂層とをこの順に積層した積
層体を、前記化粧シート層を下面側として上下の熱盤の
間に載置し、熱圧にて両面を同時成形することを特徴と
する。本発明において、基材としては、従来の化粧合板
の基材として用いられるすべてのものを用いることがで
き、パーチクルボード、合板、ＭＤＦ等を任意に用い得
る。厚みも任意であるが、家具用化粧板としての一般的
使用の観点から９ｍｍ〜１５ｍｍ程度が好ましい。The method for producing a double-faced decorative board according to the present invention for achieving the above object is basically composed of:
A laminate in which a decorative sheet layer, an adhesive layer, a base material, an adhesive layer, and an uncured thermosetting resin layer are stacked in this order, and the upper and lower thermal It is placed between boards, and both sides are simultaneously molded by hot pressure. In the present invention, as the base material, any of those used as a base material of a conventional decorative plywood can be used, and a particle board, a plywood, an MDF or the like can be used arbitrarily. The thickness is also arbitrary, but is preferably about 9 mm to 15 mm from the viewpoint of general use as a decorative panel for furniture.
【０００８】未硬化熱硬化樹脂層は、樹脂含浸紙による
層であってもよく、含浸用樹脂を基材シートにコーティ
ングした樹脂コート紙による層であってもよい。いずれ
であっても、使用する熱硬化樹脂は、メラミン樹脂、ジ
アリルフタレート樹脂、不飽和ポリエステル樹脂等を用
い得る。表面性状とりわけ表面硬度の高さ及び表面凹凸
の鮮明度の良好さの理由からメラミン樹脂は特に好まし
い。これらの樹脂は前記したような従来知られた方法に
より硬化速度を適宜調整して用いられるが、本発明にお
いては、これらの樹脂は硬化時間を短くしたものを用い
ることが可能であり、硬化時間を２０〜３０秒程度とし
た樹脂含浸紙あるいは樹脂コート紙を用いることが可能
である。The uncured thermosetting resin layer may be a layer made of a resin-impregnated paper, or may be a layer made of a resin-coated paper in which a base sheet is coated with a resin for impregnation. In any case, the thermosetting resin used may be a melamine resin, a diallyl phthalate resin, an unsaturated polyester resin, or the like. Melamine resins are particularly preferred because of their surface properties, especially high surface hardness and good sharpness of surface irregularities. These resins are used by appropriately adjusting the curing speed by a conventionally known method as described above. In the present invention, it is possible to use those resins having a reduced curing time, Can be used for about 20 to 30 seconds.
【０００９】樹脂含浸紙による場合には、紙、布、不織
布等の基材シートをこれらの熱硬化性樹脂に浸漬し、そ
れを、未硬化の状態で乾燥させたものを用いる。基材シ
ートとしては従来知られた樹脂含浸紙に用いられる基材
シートを適宜用いることができ、例えば、チタン紙（好
ましくは、８０ｇ／ｍ2 程度のもの）、薄葉紙（好まし
くは、３０〜５０ｇ／ｍ2 程度のもの）、酸化チタン含
有紙間強化紙（好ましくは、３０〜５０ｇ／ｍ2 程度の
もの）、抄造紙（好ましくは、６０〜１２０ｇ／ｍ2 程
度のもの）等を用い得る。In the case of using a resin-impregnated paper, a base sheet such as paper, cloth, non-woven fabric or the like is immersed in these thermosetting resins and dried in an uncured state. As the base sheet, a conventionally known base sheet used for resin-impregnated paper can be used as appropriate, and for example, titanium paper (preferably about 80 g / m 2 ), tissue paper (preferably 30 to 50 g) / m 2 about one), the inter-titanium oxide-containing paper reinforced paper (preferably, 30 to 50 g / m 2 of about one), papermaking sheet (preferably, may be used 60～120G / m 2 about one), etc. .
【００１０】樹脂含浸量としては、例えばメラミン樹脂
含浸の場合には、レジンコンテント（ＲＣ）で５０〜６
０％程度（未硬化）が好ましい。ＲＣが５０％以下の場
合には基材との接着効果が十分保持できなくなり、６０
％以上の場合には硬化時間が長くなり生産性向上の妨げ
となることによる。樹脂コート紙による場合には、チタ
ン紙、紙間強化紙、薄葉紙のような原紙（印刷紙）の表
面に、上記種類の熱硬化性樹脂をコーティングし、ブロ
ッキングしない程度に乾燥させた未硬化状態のものを用
いる。コーティング量は、例えばメラミン樹脂コーティ
ングの場合に、ＲＣで３０〜４０％であることが好まし
い。３０％以下の場合には十分な表面硬度等、表面性状
が得られず、４０％以上の場合には品質面で過剰供給で
あり、コストアップとなることによる。The resin impregnation amount is, for example, 50 to 6 in resin content (RC) in the case of melamine resin impregnation.
About 0% (uncured) is preferable. When RC is 50% or less, the effect of bonding to the base material cannot be sufficiently maintained, and
%, The curing time is prolonged, which hinders improvement in productivity. In the case of using resin-coated paper, the above-mentioned type of thermosetting resin is coated on the surface of base paper (printing paper) such as titanium paper, inter-sheet reinforced paper, thin paper, etc. Use For example, in the case of a melamine resin coating, the coating amount is preferably 30 to 40% by RC. If the content is 30% or less, sufficient surface properties such as surface hardness cannot be obtained, and if it is 40% or more, excessive supply is required in terms of quality, resulting in an increase in cost.
【００１１】すなわち、ＲＣ％が大きい場合には、樹脂
の硬化により表面層の形成と基材とし接着の双方が同時
に可能となる。しかし、その場合には硬化に要する時間
が長くなる。硬化に要する時間を短縮するためにＲＣ％
を低くする場合には、樹脂含浸紙による場合、樹脂コー
ト紙による場合のいずれであっても、必要に応じて、基
材との間に接着剤層をさらに設ける。接着剤は、熱硬化
性樹脂及び基材の種類に応じて適宜選択するが、尿素・
メラミン共縮合樹脂、尿素樹脂、尿素・酢酸ビニル樹
脂、酢酸ビニル樹脂、等を適宜用いることができる。That is, when the RC% is large, both the formation of the surface layer and the adhesion as a substrate can be simultaneously performed by curing the resin. However, in that case, the time required for curing becomes long. RC% to shorten the time required for curing
In the case where the value of is lowered, an adhesive layer is further provided between the base material and the base material as necessary, regardless of the case using resin-impregnated paper or the case using resin-coated paper. The adhesive is appropriately selected according to the type of the thermosetting resin and the base material.
Melamine co-condensation resin, urea resin, urea / vinyl acetate resin, vinyl acetate resin, and the like can be appropriately used.
【００１２】化粧シート層としては、ウレタン樹脂プレ
コート紙、アルミアルキッド樹脂プレコート紙のよう
に、加熱により変性しない、従来知られた化粧シート
（プレコート紙）を適宜用いることができる。化粧シー
トを基材に接着するための接着剤としては、化粧シート
及び基材の種類に応じて適宜選択するが、尿素・メラミ
ン共縮合樹脂、尿素樹脂、尿素・酢酸ビニル樹脂、酢酸
ビニル樹脂、等を適宜用いることができる。As the decorative sheet layer, a conventionally known decorative sheet (pre-coated paper) which is not denatured by heating, such as urethane resin pre-coated paper and aluminum alkyd resin pre-coated paper, can be appropriately used. The adhesive for bonding the decorative sheet to the base material is appropriately selected according to the type of the decorative sheet and the base material, but urea / melamine cocondensation resin, urea resin, urea / vinyl acetate resin, vinyl acetate resin, Etc. can be used as appropriate.
【００１３】上記の化粧シート層、接着剤層、基材、必
要に応じて接着剤層、未硬化熱硬化樹脂層とをこの順に
積層した積層体を用意し、該積層体を前記化粧シート層
を下面側として、従来知られたホットプレスの下側の熱
盤上に載置し、熱盤を相互に近接させて、従来の両面化
粧板の製造と同様にして加熱と圧締を行う。製造する化
粧板に求められる表面特性に応じて、熱盤と積層体との
間に、鏡面板や凹凸板を配置してもよい。A laminate is prepared by laminating the decorative sheet layer, the adhesive layer, the base material, and, if necessary, the adhesive layer and the uncured thermosetting resin layer in this order. Is placed on a hot plate below a conventionally known hot press, and the hot plates are brought close to each other, and heating and pressing are performed in the same manner as in the production of a conventional double-sided decorative board. A mirror plate or an uneven plate may be arranged between the hot platen and the laminate according to the surface characteristics required for the decorative plate to be manufactured.
【００１４】熱圧処理後に解圧して熱盤間から、処理済
みの積層体を取り出すことにより、本発明による両面化
粧板が得られる。なお、本発明において熱硬化樹脂層の
硬化時間に特に制限はない。しかしながら、本発明の製
造方法によれば、熱硬化性樹脂が非加圧下で加熱される
ことはないことから、硬化速度の早い熱硬化性樹脂を用
いる場合でも、硬化時に樹脂の流れ不良が生じることは
回避でき、表面性状は常に良好なものが得られる。従っ
て、硬化時間を短くした樹脂含浸紙あるいは樹脂コート
紙を上面側化粧シートとして用いることが可能となり、
処理時間の短縮が達成される。After the hot press treatment, the pressure is released and the treated laminate is taken out from between the hot plates, whereby the double-faced decorative board according to the present invention is obtained. In the present invention, the curing time of the thermosetting resin layer is not particularly limited. However, according to the production method of the present invention, since the thermosetting resin is not heated under no pressure, even when a thermosetting resin having a high curing speed is used, poor resin flow occurs during curing. Can be avoided, and good surface properties can always be obtained. Therefore, it is possible to use a resin-impregnated paper or a resin-coated paper with a shortened curing time as the upper surface side decorative sheet,
A reduction in processing time is achieved.
【００１５】[0015]
【実施例】以下、実施例により本発明を説明する。 〔実施例１〕１５ｍｍ厚のパーチクルボードの両面に、
尿素・メラミン樹脂接着剤を介して、一面には、印刷済
チタン紙８０ｇ／ｍ2 に硬化時間を２０秒に調整したメ
ラミン樹脂をコーティング（ＲＣ：３０％）し、未硬化
で乾燥させた含浸用樹脂コート紙を、他面には、プレコ
ート紙（ウレタンプレコート紙にベタ印刷したもの、５
０ｇ／ｍ2 ）をそれぞれ貼合して積層した積層体を、ホ
ットプレスの下側熱盤上に、鏡面板を介して、プレコー
ト紙側を下側面として載置し、上側面にも鏡面盤を配置
した状態で、定法により、１７０℃、２５ｋｇ／ｃ
ｍ2 、２０秒の条件で両面熱圧同時成形を行い、両面化
粧板を成形した。解圧後、積層体を熱盤間から取り出し
表面性状を目視により観察したところ、両面とも良好な
仕上がりであった。The present invention will be described below with reference to examples. [Example 1] On both sides of a 15 mm thick particle board,
One side is coated with melamine resin (RC: 30%) whose curing time is adjusted to 20 seconds on printed titanium paper 80g / m 2 via urea / melamine resin adhesive, and is uncured and dried. On the other side, a resin-coated paper for pre-coated paper (solid-printed on urethane pre-coated paper, 5
0 g / m 2 ), and the laminated body was placed on a lower hot plate of a hot press via a mirror plate, with the precoated paper side as the lower surface, and the mirror plate was also placed on the upper surface. Is placed at 170 ° C. and 25 kg / c by a standard method.
Simultaneous double-sided hot-press molding was performed under the conditions of m 2 and 20 seconds to form a double-sided decorative board. After decompression, the laminate was taken out from between the hot plates and the surface properties were visually observed.
【００１６】〔実施例２〕１５ｍｍ厚のパーチクルボー
ドの一面に、硬化時間を３０秒に調整したメラミン樹脂
を含浸した樹脂含浸紙（ＲＣ：５０％、酸化チタン含有
紙間強化紙４５ｇ／ｍ2 ）を、他面に、尿素・酢酸ビニ
ル系接着剤層を介してポリエステルプレコート紙６０ｇ
／ｍ2 をそれぞれ貼合して積層した積層体を、ホットプ
レスの下側熱盤上に鏡面板を介してプレコート紙側を下
側面として載置し、上側面には凹凸模様（梨地模様）を
持つ凹凸板を配置した状態で、定法により、１７０℃、
１５ｋｇ／ｃｍ2 、３０秒の条件で両面熱圧同時成形を
行い、両面化粧板を成形した。解圧後、積層体を熱盤間
から取り出し表面性状を目視により観察したところ、両
面とも仕上がりは良好で、上側の凹凸模様もはっきりと
出現した。Example 2 A resin-impregnated paper (RC: 50%, titanium oxide-containing paper-reinforced paper 45 g / m 2 ) impregnated with a melamine resin whose curing time was adjusted to 30 seconds on one surface of a 15 mm-thick particle board. On the other side via a urea-vinyl acetate adhesive layer, 60 g of polyester precoated paper
/ M 2 are laminated on each other and placed on a lower hot plate of a hot press via a mirror plate with the precoated paper side as the lower surface, and the upper surface has a concavo-convex pattern (pattern pattern) With the irregular plate with
Simultaneous double-sided hot-press molding was performed under the conditions of 15 kg / cm 2 and 30 seconds to form a double-sided decorative board. After decompression, the laminate was taken out from between the hot plates and the surface properties were visually observed. As a result, the finish was good on both sides, and the uneven pattern on the upper side clearly appeared.
【００１７】〔比較例１〕１５ｍｍ厚のパーチクルボー
ドの両側面に実施例２で用いたと同じメラミン樹脂含浸
紙を貼合して積層した積層体を、ホットプレスの下側熱
盤上に凹凸模様（梨地模様）を持つ凹凸板を配置した状
態で載置し、上側面にも同じ凹凸板を配置した後、定法
により、１７０℃、２５ｋｇ／ｃｍ2 、２０秒の条件で
両面熱圧同時成形を行い、両面化粧板を成形した。解圧
後、積層体を熱盤間から取り出し表面性状を目視により
観察したところ、上側では凹凸模様ははっきりと出現し
ていたが、下側面では凹凸模様が部分的に不明瞭であり
また不均一であった。[Comparative Example 1] A laminate obtained by laminating the same melamine resin impregnated paper as used in Example 2 on both sides of a 15 mm-thick particle board was laminated on a lower hot platen of a hot press. After placing the uneven plate having a satin pattern) on the upper surface, the same uneven plate is also placed on the upper surface, and then both sides are subjected to simultaneous hot-press molding at 170 ° C., 25 kg / cm 2 , and 20 seconds by a standard method. Then, a double-sided decorative board was formed. After decompression, the laminate was taken out from between the hot plates and the surface properties were visually observed. As a result, the uneven pattern was clearly visible on the upper side, but the uneven pattern was partially unclear and uneven on the lower side. Met.
【００１８】〔比較例２〕１５ｍｍ厚のパーチクルボー
ドの一面に接着剤層を介して実施例１で用いたと同じウ
レタンプレコート紙を貼合し、他面にメラミン樹脂含浸
紙（ＲＣ：５０％）を貼合して積層した積層体を、ホッ
トプレスの下側熱盤上にウレタンプレコート紙側を下側
面として載置し、、定法により、１８０℃、２５ｋｇ／
ｃｍ2 、４５秒の条件で両面熱圧同時成形を行い、両面
化粧板を成形した。解圧後、積層体を熱盤間から取り出
し表面性状を目視により観察したところ、ウレタンプレ
コート紙側は長時間の加熱により黄変していた。Comparative Example 2 The same urethane precoated paper as used in Example 1 was pasted on one side of a 15 mm-thick particle board via an adhesive layer, and the other side was made of melamine resin impregnated paper (RC: 50%). The laminated body obtained by bonding and laminating is placed on a lower hot platen of a hot press with the urethane precoated paper side as a lower surface, and is subjected to a conventional method at 180 ° C. and 25 kg / kg.
Simultaneous double-sided hot-press molding was performed under the conditions of cm 2 and 45 seconds to form a double-sided decorative board. After decompression, the laminate was taken out from between the hot plates and the surface properties were visually observed. As a result, the urethane precoated paper side was yellowed due to prolonged heating.
【００１９】〔考 察〕実施例及び比較例からわかるよ
うに、本発明の製造方法では、熱硬化性樹脂を基材の上
側面にのみ用い、下側面はプレコート紙を用いているの
で、硬化速度の早い（硬化時間：２０〜３０秒）熱硬化
性樹脂を用いても硬化時に樹脂の流れ不良が生じること
はなく、表裏両面とも表面性状は常に良好なものが得ら
れる。比較例１の場合には、硬化速度の早い（硬化時
間：２０秒程度）熱硬化性樹脂を下側面に用いたことに
より、下側面の表面性状は不十分であり、実施例２の場
合には上側面のみ熱硬化性樹脂を用いているが、硬化速
度の遅い熱硬化性樹脂を用いたために、下側面に貼合し
たウレタンプレコート紙が長時間の加熱により変色して
いる。[Discussion] As can be seen from the examples and comparative examples, in the production method of the present invention, the thermosetting resin is used only on the upper surface of the base material and the lower surface is made of precoated paper. Even if a thermosetting resin having a high speed (curing time: 20 to 30 seconds) is used, no resin flow failure occurs at the time of curing, and good surface properties can be obtained on both front and back surfaces. In the case of Comparative Example 1, the surface property of the lower surface was insufficient due to the use of a thermosetting resin having a high curing speed (curing time: about 20 seconds) on the lower surface. Uses a thermosetting resin only on the upper surface, but the urethane precoated paper bonded to the lower surface is discolored by prolonged heating because the thermosetting resin having a slow curing speed is used.
【００２０】[0020]
【発明の効果】本発明によれば、硬化時間を短くした樹
脂含浸紙あるいは樹脂コート紙を上面側化粧シート層と
して用いることが可能となり、熱圧同時成型による両面
化粧板の製造時間を大きく短縮することができ、生産性
を高めることができる。According to the present invention, it is possible to use a resin-impregnated paper or a resin-coated paper whose curing time has been shortened as a decorative sheet layer on the upper surface side, thereby greatly reducing the manufacturing time of a double-sided decorative sheet by simultaneous hot-press molding. And increase productivity.
【図１】両面化粧板の製造過程を説明する図。FIG. 1 is a view for explaining a manufacturing process of a double-sided decorative board.
１…基板、２ａ、２ｂ…樹脂含浸紙、４ａ、４ｂ…鏡面
板、５、６…熱盤DESCRIPTION OF SYMBOLS 1 ... Substrate, 2a, 2b ... Resin impregnated paper, 4a, 4b ... Mirror plate, 5, 6 ... Hot plate
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平２−52739（ＪＰ，Ａ) 特開 昭53−23367（ＪＰ，Ａ) 特開 平４−35936（ＪＰ，Ａ) 特開 平２−78548（ＪＰ，Ａ) 特開 昭55−152056（ＪＰ，Ａ) 特開 平２−155731（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B32B 1/00 - 35/00 ──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-2-52739 (JP, A) JP-A-53-23367 (JP, A) JP-A-4-35936 (JP, A) JP-A-2-35 78548 (JP, A) JP-A-55-152056 (JP, A) JP-A-2-155731 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) B32B 1/00-35 / 00
Claims (5)
変性しないプレコート紙である化粧シート層と、接着剤
層と、基材と、未硬化熱硬化樹脂層とをこの順に積層し
た積層体を、前記化粧シート層を下面側として上下の熱
盤の間に載置し、熱圧にて両面を同時成形することを特
徴とする両面化粧板の製造方法。1. When manufacturing a decorative board, heating
A laminate in which a decorative sheet layer, which is a precoated paper that is not denatured , an adhesive layer, a base material, and an uncured thermosetting resin layer, is laminated in this order, between the upper and lower hot plates with the decorative sheet layer being on the lower surface side. A double-sided decorative board, wherein the two sides are simultaneously molded by heat and pressure.
剤層をさらに有することを特徴とする請求項１記載の両
面化粧板の製造方法。2. The method for producing a double-sided decorative board according to claim 1, further comprising an adhesive layer between the substrate and the uncured thermosetting resin layer.
含浸紙である請求項１記載の両面化粧板の製造方法。3. The method according to claim 1, wherein the uncured thermosetting resin layer is a thermosetting resin-impregnated paper.
をコーティングし未硬化状態で乾燥させた樹脂コート紙
である請求項１又は２記載の両面化粧板の製造方法。4. The method for producing a double-sided decorative board according to claim 1, wherein the uncured thermosetting resin layer is a resin-coated paper coated with a thermosetting resin and dried in an uncured state.
粧板の製造方法により製造された化粧板。5. A decorative board manufactured by the method for producing a double-sided decorative board according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04301595A JP3244612B2 (en) | 1995-03-02 | 1995-03-02 | Method for producing double-sided decorative board and decorative board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04301595A JP3244612B2 (en) | 1995-03-02 | 1995-03-02 | Method for producing double-sided decorative board and decorative board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08238737A JPH08238737A (en) | 1996-09-17 |
| JP3244612B2 true JP3244612B2 (en) | 2002-01-07 |
Family
ID=12652158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04301595A Expired - Fee Related JP3244612B2 (en) | 1995-03-02 | 1995-03-02 | Method for producing double-sided decorative board and decorative board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3244612B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19945279C1 (en) * | 1999-09-22 | 2001-04-05 | Kronospan Tech Co Ltd | Device and method for producing floor panels and panels manufactured in accordance with the method |
| DE102007062600A1 (en) | 2007-12-21 | 2009-06-25 | Akzenta Paneele + Profile Gmbh | Method for producing a decorative laminate |
-
1995
- 1995-03-02 JP JP04301595A patent/JP3244612B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08238737A (en) | 1996-09-17 |
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