JPS6153204B2 - - Google Patents
Info
- Publication number
- JPS6153204B2 JPS6153204B2 JP23307482A JP23307482A JPS6153204B2 JP S6153204 B2 JPS6153204 B2 JP S6153204B2 JP 23307482 A JP23307482 A JP 23307482A JP 23307482 A JP23307482 A JP 23307482A JP S6153204 B2 JPS6153204 B2 JP S6153204B2
- Authority
- JP
- Japan
- Prior art keywords
- adhesive
- decorative veneer
- decorative
- water
- 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
Links
- 239000000463 material Substances 0.000 claims description 30
- 239000000853 adhesive Substances 0.000 claims description 25
- 230000001070 adhesive effect Effects 0.000 claims description 25
- 230000003014 reinforcing effect Effects 0.000 claims description 12
- 229920005989 resin Polymers 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 239000003351 stiffener Substances 0.000 claims description 8
- 239000002174 Styrene-butadiene Substances 0.000 claims description 7
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 7
- 239000011115 styrene butadiene Substances 0.000 claims description 7
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000010030 laminating Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 14
- 229920000877 Melamine resin Polymers 0.000 description 5
- 239000004640 Melamine resin Substances 0.000 description 5
- 235000013312 flour Nutrition 0.000 description 5
- 241000209140 Triticum Species 0.000 description 4
- 235000021307 Triticum Nutrition 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 239000000123 paper Substances 0.000 description 4
- 229920001807 Urea-formaldehyde Polymers 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000004745 nonwoven fabric Substances 0.000 description 3
- 239000004606 Fillers/Extenders Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- NVZWEEGUWXZOKI-UHFFFAOYSA-N 1-ethenyl-2-methylbenzene Chemical compound CC1=CC=CC=C1C=C NVZWEEGUWXZOKI-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000005018 casein Substances 0.000 description 1
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 1
- 235000021240 caseins Nutrition 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Finished Plywoods (AREA)
Description
【発明の詳細な説明】
本発明は化粧単板シートの製造方法に係り、詳
しくは化粧単板特有のそり、あばれ等が認められ
ない平滑で柔軟な化粧単板シートの製造方法に関
する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a decorative veneer sheet, and more particularly to a method for manufacturing a smooth and flexible decorative veneer sheet that is free from warping, cracking, etc. that are characteristic of decorative veneers.
従来より、原木を0.5mm以下程度の厚さに切削
した〓板単板に紙、不織布などの補強裏貼材を貼
着し、可撓性を持たせた化粧単板シートは知られ
ている。この化粧単板シートの製造方法は、単板
を15ないし10％の含水率としたものを用い、接着
剤として乾式、すなわち無溶媒タイプのものある
いは樹脂フイルム等を用い熱圧接着して行ういわ
ゆる乾式方法、または単板を20％以上の含水率と
し、接着剤もウエツトタイプ、すなわち水溶液タ
イプのものを用い熱圧接着する湿式方式のいずれ
かの方法で製造されている。しかしながら、乾式
方法にあつては化粧単板シートの外観品質は優れ
ているものの、単板を20〜15％以下の含水率とし
たものを用いるため、単板の乾燥工程を必要と
し、かつ接着剤に高価なものを用いなければなら
ないという欠点を有している。また湿式方式にあ
つては、水溶液タイプの接着剤を用いるため、接
着剤中の水分がある程度単板シートの仕上り状態
に影響を与え、化粧単板シートが単板の乾燥が進
行するにしたがつて凹凸になつたり、そりやあば
れが発生し易い問題を含んでいる。 Decorative veneer sheets have been known in the past, which are made by cutting logs to a thickness of about 0.5 mm or less and attaching a reinforcing backing material such as paper or non-woven fabric to a veneer sheet to give it flexibility. . This decorative veneer sheet manufacturing method uses veneers with a moisture content of 15 to 10%, and uses a dry adhesive, that is, a solvent-free adhesive, or a resin film, etc., to perform heat-pressure bonding. It is produced either by a dry method or by a wet method in which the veneer has a moisture content of 20% or more and the adhesive is a wet type, that is, an aqueous solution, and is bonded by heat and pressure. However, although the appearance quality of the decorative veneer sheet is excellent when using the dry method, since the veneer is used with a moisture content of 20 to 15% or less, a drying process is required for the veneer, and adhesive bonding is required. It has the disadvantage that expensive agents must be used. In addition, in the wet method, since an aqueous solution type adhesive is used, the moisture in the adhesive will affect the finish of the veneer sheet to some extent, and the decorative veneer sheet will dry as the veneer progresses. This includes problems such as unevenness, warping, and cracking.
本発明者はこれらの問題点を解決すべく種々検
討したところ、従来の湿式方式による化粧単板シ
ートの製造において、化粧単板の含水率を20％以
上のものを用い、補強裏貼材の貼着に水溶性接着
剤としてユリア樹脂、メラミン樹脂、酢酸ビニル
樹脂エマルジヨン、スチレン−ブタジエン樹脂お
よび天然増量剤からなる接着剤を選択し、更に単
板表面に腰付剤を塗布し熱圧接着した場合に、そ
りやあばれのない良好な化粧単板シートとなり、
またその製造工程においても従来の単板の仮固
着、熱圧接着といつた２次、３次工程を一括して
行ない得ることを新規に見出し、本発明を完成さ
せた。 The present inventor conducted various studies to solve these problems, and found that in the production of decorative veneer sheets using the conventional wet method, using decorative veneers with a moisture content of 20% or more and reinforcing backing materials. For adhesion, an adhesive consisting of urea resin, melamine resin, vinyl acetate resin emulsion, styrene-butadiene resin, and natural extender was selected as a water-soluble adhesive, and a stiffening agent was further applied to the surface of the veneer, followed by heat-pressure bonding. In some cases, the result is a good decorative veneer sheet with no warping or pitting.
Furthermore, in the manufacturing process, we have newly discovered that the conventional secondary and tertiary processes such as temporary fixing of veneers and thermo-pressure bonding can be carried out all at once, and have completed the present invention.
すなわち本発明の化粧単板シートの製造方法
は、離型基材上に水溶性樹脂、スチレン−ブタジ
エン樹脂及び天然増量剤よりなる水溶性接着剤、
例えばメラミン樹脂、ユリア樹脂、スチレン−ブ
タジエン樹脂、水、小麦粉よりなる接着剤を塗布
して補強裏貼材を貼合わせ、次いで該裏貼材上に
前記接着材にて含水率20％以上の化粧単板を積層
させ、更に該化粧単板表面に腰付剤を塗布し、熱
圧固定することを特徴とする。 That is, the method for producing a decorative veneer sheet of the present invention includes applying a water-soluble adhesive comprising a water-soluble resin, a styrene-butadiene resin, and a natural extender on a release base material;
For example, a reinforcing backing material is laminated by applying an adhesive made of melamine resin, urea resin, styrene-butadiene resin, water, and wheat flour, and then a makeup layer with a water content of 20% or more is applied to the backing material with the adhesive. The method is characterized in that the veneers are laminated, a stiffening agent is further applied to the surface of the decorative veneer, and the veneers are fixed under heat and pressure.
本発明で使用する離型基材は、離型紙またはポ
リエチレンフイルム等の離型性のあるプラスチツ
クシートが好ましく、熱圧成形された化粧単板シ
ートを加熱圧締後容易に取りはずすことができ、
かつ化粧単板シートからも容易に剥離し得る仮固
着としての性質を有するものであれば良く、これ
らは単独または他の基板上に貼り合された状態で
用いられる。 The release base material used in the present invention is preferably a plastic sheet with release properties such as release paper or polyethylene film, which allows the decorative veneer sheet formed by thermo-pressure to be easily removed after heat-pressing.
Any material may be used as long as it has temporary adhesion properties that allow it to be easily peeled off from the decorative veneer sheet, and these may be used alone or bonded to another substrate.
また、本発明で使用される接着剤は、化粧単板
貼着用として接着剤自体が単板表面より滲み出さ
ない様に配合されたものであれば良い。水溶性樹
脂としては水溶性メラミン樹脂、ユリア樹脂など
架橋反応を起すものが好ましい。スチレン−ブタ
ジエン樹脂系はラテツクス（エマルジヨン）タイ
プのものが使用される。天然増量剤としては、小
麦粉、デンプン、カゼイン、プリテイツシユ−ガ
ム（Ｂ−ゴム）などが使用できる。特に小麦粉が
好ましい。より具体的にはメラミン樹脂、スチレ
ン−ブタジエン樹脂、水、小麦粉を配合した接着
剤が用いられる。その配合比は、例えばスチレン
−ブタジエン樹脂10〜15部、メラミン樹脂10部、
小麦粉20〜30部、水30部である。接着剤の塗布量
は、ウエツトで50ないし150ｇ／m2、好ましくは
80ないし100ｇ／m2が良い。また塗布手段として
は、接着剤が均一に塗布できるものであれば良
く、例えばスプレツターが用いられる。 Further, the adhesive used in the present invention may be one that is formulated so that the adhesive itself does not ooze out from the surface of the veneer when used for pasting decorative veneers. The water-soluble resin is preferably one that causes a crosslinking reaction, such as a water-soluble melamine resin or urea resin. The styrene-butadiene resin system used is a latex (emulsion) type. As natural fillers, wheat flour, starch, casein, pretty gum (B-gum), etc. can be used. Wheat flour is particularly preferred. More specifically, an adhesive containing melamine resin, styrene-butadiene resin, water, and wheat flour is used. The blending ratio is, for example, 10 to 15 parts of styrene-butadiene resin, 10 parts of melamine resin,
20 to 30 parts of flour and 30 parts of water. The amount of adhesive applied is 50 to 150 g/m 2 wet, preferably
80 to 100g/ m2 is good. Further, the application means may be any means as long as it can uniformly apply the adhesive; for example, a sprayer may be used.
また、本発明で使用する補強裏貼材としては、
化粧単板の補強裏貼材として通常使用されるいわ
ゆる裏打材が挙げられ、例えば和紙、クラフト
紙、樹脂含浸紙、不織布、布等のシート状物であ
り、好ましくは不織布である。またこれらの補強
裏貼材は、材質により、また目的に応じて異なる
が、通常坪量20〜100ｇ／m2程度のものが用いら
れる。 In addition, the reinforcing backing material used in the present invention includes:
Examples of so-called backing materials commonly used as reinforcing backing materials for decorative veneers include sheet-like materials such as Japanese paper, kraft paper, resin-impregnated paper, nonwoven fabric, and cloth, with nonwoven fabric being preferred. These reinforcing backing materials usually have a basis weight of about 20 to 100 g/m 2 , although they vary depending on the material and purpose.
更に、腰付剤としては２−メチルスチレン・ア
クリル溶液（20％Ｎ／Ｖ、PH6.6〜6.7）が好まし
く、この場合の塗布量は平均100ｇ／m2程度で、
例えばスプレーガンにて塗布し得るものである。 Furthermore, 2-methylstyrene/acrylic solution (20% N/V, PH6.6-6.7) is preferable as the adhesive, and in this case, the application amount is about 100g/ m2 on average,
For example, it can be applied with a spray gun.
以下に本発明の製造方法の一実施例を図面をも
つて詳細に説明する。第１図は、本発明方法によ
る化粧単板シートの熱圧固定前の積層状態を示し
た拡大断面図である。すなわち、加熱圧締機（図
示省略）上に離型基材１をオーバーレイし、その
上に接着剤２を均一に塗布する。次いで、この接
着剤の塗布層上に補強裏貼材３を貼り合せる。次
に補強裏貼材上に、該裏貼材を貼着するのに使用
した接着剤と同一の接着剤２を塗布し、含水率20
％以上の化粧単板４を接着し、更に腰付剤６を塗
布した後加熱圧締して化粧単板シートを得る。 An embodiment of the manufacturing method of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an enlarged sectional view showing the laminated state of decorative veneer sheets before being fixed by heat and pressure according to the method of the present invention. That is, the release base material 1 is overlaid on a hot press (not shown), and the adhesive 2 is uniformly applied thereon. Next, the reinforcing backing material 3 is laminated onto this adhesive coating layer. Next, apply adhesive 2, which is the same as the adhesive used to attach the reinforcing backing material, to the reinforcing backing material, and
% or more of decorative veneer 4 is adhered, further coated with a stiffening agent 6, and then heated and pressed to obtain a decorative veneer sheet.
この場合の加熱圧締条件は、温度110℃、圧力
５Kg／m2にて10秒間圧締し、後即座に下圧したの
ち再度60秒間加熱圧締することにより行なわれ
る。 The hot pressing conditions in this case are that the temperature is 110° C. and the pressure is 5 kg/m 2 for 10 seconds, the pressure is immediately lowered, and then the hot pressing is performed again for 60 seconds.
この加熱圧締により化粧単板と裏貼材の接着は
良好で、かつ裏貼材中に接着剤がしみ出さない程
度に適当に浸透をきたすとともに硬化され、目す
きのない優れた可撓性の化粧単板シートが製造さ
れる。 This heat-pressing ensures good adhesion between the decorative veneer and the backing material, and the adhesive penetrates into the backing material appropriately to the extent that it does not seep out and is cured, resulting in excellent flexibility with no gaps. Decorative veneer sheets are manufactured.
なお、本発明方法においては離型基材１、接着
剤２、補強裏貼材３の積層基材５はこの積層状態
のまま堆積し保存することもできる。この堆積保
存は、例えば２〜３週間の堆積放置試験によつて
も、化粧単板シートを製造するにあたつてなんら
不利益を与えなかつた。したがつて、種々の化粧
単板シートを製造する場合、前もつて製造し堆積
保存しておいた積層基材５を順次使用することが
できるという利点を有している。 In addition, in the method of the present invention, the laminated base material 5 of the release base material 1, the adhesive 2, and the reinforcing backing material 3 can be deposited and stored in this laminated state. This accumulation and storage did not cause any disadvantage in producing a decorative veneer sheet, even in a 2 to 3 week accumulation test. Therefore, when manufacturing various decorative veneer sheets, there is an advantage that the laminated base materials 5 that have been previously manufactured and stored in piles can be sequentially used.
以上のようにして製造された化粧単板シートの
斜視図を示せば第２図のようになる。すなわち、
化粧単板４の裏面には補強裏貼材中に接着剤が適
当に浸透した層７が形成され、更に化粧単板４の
表面には腰付剤層６が形成され、腰付剤の一部は
化粧単板中に一部浸透した状態となつている。こ
の腰付剤の塗布により、従来の単板矧ぎ合せ部の
乾燥、収縮防止のための散水工程を省くことがで
き、また堆積保存された積層基材５を使用した場
合に化粧単板の水分乾燥に基づく単板収縮による
矧ぎ合せ部のスキの発生を防止し得る効果があ
る。 FIG. 2 is a perspective view of the decorative veneer sheet manufactured as described above. That is,
On the back side of the decorative veneer 4, a layer 7 in which adhesive has properly penetrated into the reinforcing backing material is formed, and furthermore, on the surface of the decorative veneer 4, a layer 6 of a stiffening agent is formed, and a layer 7 of the stiffening agent is formed on the surface of the decorative veneer 4. Some of the parts have penetrated into the decorative veneer. By applying this stiffening agent, the conventional water sprinkling process to prevent drying and shrinkage of the veneer joints can be omitted, and when the laminated base material 5 that has been deposited and preserved is used, the decorative veneer can be This has the effect of preventing the occurrence of gaps in the joints due to shrinkage of the veneer due to moisture drying.
本発明方法で得られる化粧単板シートは、上面
が腰付剤により光沢のある、平滑な、外観品質が
極めて良いものとなる。更に、上面および下面が
強固に補強されたことにより化粧単板シートのそ
り、あばれがなく、柔軟性に富んだものとなる。
加えて、化粧単板表面は腰付け効果により、化粧
単板シートの厚さが0.2mm程度の薄いものであつ
ても機械研磨をすることができる。この化粧単板
シートにおける機械研磨は、従来方法による化粧
単板シートではほとんど不可能であつたことによ
り、本発明方法は特に優れたものであるといえ
る。 The decorative veneer sheet obtained by the method of the present invention has a glossy and smooth upper surface due to the use of a stiffening agent, and has an extremely good appearance quality. Furthermore, since the upper and lower surfaces are strongly reinforced, the decorative veneer sheet is free from warping and cracking and is highly flexible.
In addition, the surface of the decorative veneer can be mechanically polished even if the thickness of the decorative veneer sheet is as thin as 0.2 mm due to the stiffening effect. The method of the present invention can be said to be particularly excellent since mechanical polishing of this decorative veneer sheet was almost impossible for decorative veneer sheets produced by conventional methods.
第１図は本発明の化粧単板シート製造における
積層状態を示す拡大断面図、第２図は本発明によ
り得られた化粧単板シートの一部切り欠き斜視図
である。
３……補強裏貼材、４……化粧単板、６……腰
付剤。
FIG. 1 is an enlarged sectional view showing a laminated state in the production of a decorative veneer sheet according to the present invention, and FIG. 2 is a partially cutaway perspective view of the decorative veneer sheet obtained according to the present invention. 3... Reinforced backing material, 4... Decorative veneer, 6... Waisting agent.
Claims (1)
エン樹脂等水溶性接着剤を塗布して補強裏貼材を
貼り合わせ、次いで該裏貼材上に前記接着剤にて
含水率20％以上の化粧単板を積層させ、更に該化
粧単板表面に腰付剤を塗布し、熱圧固定すること
を特徴とする平滑な可撓性のある化粧単板シート
の製造方法。1. A water-soluble adhesive such as a water-soluble resin or styrene-butadiene resin is applied onto the release base material and a reinforcing backing material is bonded to the mold release base material, and then a water content of 20% or more is applied onto the backing material with the adhesive. A method for producing a smooth and flexible decorative veneer sheet, which comprises laminating decorative veneers, further applying a stiffening agent to the surface of the decorative veneers, and fixing them under heat and pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23307482A JPS59123609A (en) | 1982-12-28 | 1982-12-28 | Manufacture of decorative veneer sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23307482A JPS59123609A (en) | 1982-12-28 | 1982-12-28 | Manufacture of decorative veneer sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59123609A JPS59123609A (en) | 1984-07-17 |
| JPS6153204B2 true JPS6153204B2 (en) | 1986-11-17 |
Family
ID=16949391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23307482A Granted JPS59123609A (en) | 1982-12-28 | 1982-12-28 | Manufacture of decorative veneer sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59123609A (en) |
-
1982
- 1982-12-28 JP JP23307482A patent/JPS59123609A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59123609A (en) | 1984-07-17 |
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