JPS6113963B2 - - Google Patents
Info
- Publication number
- JPS6113963B2 JPS6113963B2 JP12400978A JP12400978A JPS6113963B2 JP S6113963 B2 JPS6113963 B2 JP S6113963B2 JP 12400978 A JP12400978 A JP 12400978A JP 12400978 A JP12400978 A JP 12400978A JP S6113963 B2 JPS6113963 B2 JP S6113963B2
- Authority
- JP
- Japan
- Prior art keywords
- veneer
- water
- veneers
- adhesive
- laminated wood
- 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 41
- 239000000853 adhesive Substances 0.000 claims description 40
- 230000001070 adhesive effect Effects 0.000 claims description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- 239000003795 chemical substances by application Substances 0.000 claims description 22
- 239000002023 wood Substances 0.000 claims description 22
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 238000010030 laminating Methods 0.000 claims description 11
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 12
- 235000019270 ammonium chloride Nutrition 0.000 description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 5
- 239000004202 carbamide Substances 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 150000005846 sugar alcohols Polymers 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229920006332 epoxy adhesive Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 235000014466 Douglas bleu Nutrition 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 240000001416 Pseudotsuga menziesii Species 0.000 description 1
- 235000005386 Pseudotsuga menziesii var menziesii Nutrition 0.000 description 1
- 240000002871 Tectona grandis Species 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Finished Plywoods (AREA)
Description
【発明の詳細な説明】
この発明は素材単板を複数枚積層接着した積層
木材の製法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing laminated wood by laminating and bonding a plurality of veneers.
集成材やフリツチのような積層木材は、これま
でつぎのようにして製造されていた。すなわち、
ロータリ単板、スライス単板等の素材単板の片面
に接着剤を塗布し、素材単板の片面が同一方向を
向くように複数枚積層して接着することにより製
造されていた。ところが、この場合、接着剤の塗
布された面が、接着剤に含まれている水を吸うた
め、素材単板が反り、積層接着の際の作業性が悪
くなるという問題があつた。 Laminated timber such as laminated timber and fritsch were manufactured in the following way. That is,
It was manufactured by applying an adhesive to one side of a veneer of material such as a rotary veneer or sliced veneer, and then stacking and gluing multiple veneers so that one side of the material veneer faces the same direction. However, in this case, the surface to which the adhesive was applied absorbs the water contained in the adhesive, causing the material veneer to warp, resulting in poor workability during lamination bonding.
この発明は、このような事情に鑑みなされたも
ので、素材単板を複数枚積層接着して積層木材を
製造する方法であつて、素材単板の積層に際し
て、素材単板の片面に水性接着剤を塗布するとと
もに、他面に水を塗布して単板の両面の吸水状態
のバランスをとつて単板の反りを解消することを
第１の要旨とし、素材単板の他面に塗布する水に
硬化剤を混合することにより素材単板の接着速度
等を向上させることを第２の要旨とし、必要量の
硬化剤を分割して一部を予め素材単板の片面に塗
布する接着剤に混合しておくとともに残部を素材
単板の他面に塗布する水に混合しておき、素材単
板の積層時における接着剤と硬化剤との混合状態
を向上させて硬化むらの発生を防止することを第
３の要旨とするものである。 This invention was made in view of the above circumstances, and is a method of manufacturing laminated wood by laminating and bonding a plurality of veneers of material. The first point is to apply the agent and water to the other side to balance the water absorption on both sides of the veneer and eliminate warping of the veneer, and then apply it to the other side of the material veneer. The second gist is to improve the adhesion speed of veneer material by mixing a hardening agent with water, and the adhesive is made by dividing the required amount of hardening agent and applying a portion of it to one side of the veneer material in advance. The remaining part is mixed with the water applied to the other side of the material veneer to improve the mixing state of the adhesive and hardener when laminating the material veneers and prevent uneven curing. The third point is to do so.
つぎに、この発明を詳しく説明する。 Next, this invention will be explained in detail.
この発明で用いる素材単板としては、ロータリ
単板、スライス単板等の原木単板、製材ひき板、
小角材等の集成材用単板および原木単板を適当な
色に染色した染色単板等があげられる。 The material veneers used in this invention include log veneers such as rotary veneers and sliced veneers, sawn wood veneers,
Examples include veneer for laminated wood such as small square lumber, and dyed veneer made from raw wood veneer dyed in an appropriate color.
この発明の第１の方法は、このような素材単板
の片面に水性接着剤を塗布し、他面に水を塗布し
て両面の吸水状態のバランスをとつて単板の反り
の発生を抑え、その状態で例えば素材単板の片面
が同一方向を向くように積層接着して集成材やフ
リツチのような積層木材を効率的に製造するもの
である。このとき使用する水性接着剤としては、
接着剤を水中に乳化させた水性エマルジヨン系接
着剤のほか含水率の高い各種の接着剤があげられ
る。また、水性接着剤および水の塗布方法は、ど
のような方法であつてもよい。例えばスプレイ、
はけ塗り、ロールコータによる塗布等があげられ
る。 The first method of this invention is to apply a water-based adhesive to one side of such a veneer and apply water to the other side to balance the water absorption on both sides and suppress the occurrence of warping of the veneer. In this state, for example, the material veneers are laminated and bonded so that one side faces in the same direction, thereby efficiently manufacturing laminated wood such as laminated wood or fritsch. The water-based adhesive used at this time is
In addition to water-based emulsion adhesives in which adhesives are emulsified in water, various types of adhesives with high water content can be used. Furthermore, any method may be used to apply the water-based adhesive and water. For example, spray
Examples include brush coating and coating with a roll coater.
このように、この方法は、素材単板の片面に水
性接着剤を塗布するとともに、他面に水を塗布し
て素材単板の両面の吸水率のバランスをとつて単
板の反りを解消するため、積層木材の製造が容易
になる。特に、このようにしてフリツチをつく
り、そのフリツチをスライスして化粧単板を製造
する際に、水性接着剤および水の塗布によつて含
水率の上昇した素材単板により、フリツチの含水
率が向上しているため、そのスライスが容易にな
る。 In this way, this method applies a water-based adhesive to one side of the material veneer and water to the other side to balance the water absorption on both sides of the material veneer and eliminate warping of the veneer. This makes it easier to manufacture laminated wood. In particular, when making fritches in this way and slicing the fritches to produce decorative veneers, the moisture content of the fritches is reduced due to the material veneer whose moisture content has increased due to the application of water-based adhesive and water. Because of the improvement, its slicing becomes easier.
この発明の第２の方法は、素材単板の他面に塗
布する水に硬化剤を混合するものである。ここで
いう硬化剤とは、接着剤の硬化反応を促進するも
の、例えばユリヤ系接着剤に用いられる塩化アン
モニウム、エポキシ系接着剤に用いられるアミン
類のようなもののほか、例えばポリイソシアネー
ト（主剤）と多価アルコールとからなる２液型ウ
レタン系接着剤における多価アルコールのように
それ自身硬化反応に参加するようなものも含まれ
る。 The second method of the present invention is to mix a curing agent into the water applied to the other side of the veneer material. The curing agent here refers to those that accelerate the curing reaction of adhesives, such as ammonium chloride used in urea adhesives, and amines used in epoxy adhesives, as well as polyisocyanates (main agent). It also includes substances that themselves participate in the curing reaction, such as the polyhydric alcohol in a two-component urethane adhesive consisting of a polyhydric alcohol and a polyhydric alcohol.
このように、この方法は、素材単板の片面に水
性接着剤を塗布するとともに、他面に硬化剤を混
合した水を塗布するようにして水性接着剤と硬化
剤とを分けて塗布するため、水性接着剤中に予め
硬化剤を混合しておき、これを塗布するような場
合に比べて接着剤のポツトライフ（可使期間）が
長くなり、積層前における接着剤の粘度の上昇が
抑制でき、積層木材の製造が容易になる。特に、
水性接着剤として、例えばユリア系のようなそれ
自身でも硬化する接着剤を用い、硬化剤としてそ
の硬化反応を促進するようなものを用いると、素
材単板の積層時に、硬化剤の作用により接着剤の
硬化反応が促進されるため、積層木材の製造速度
が速くなる。 In this way, in this method, the water-based adhesive is applied to one side of the material veneer, and water mixed with the hardening agent is applied to the other side, so that the water-based adhesive and the hardening agent are applied separately. Compared to the case where a hardening agent is mixed in advance with a water-based adhesive and then applied, the pot life of the adhesive is longer and the increase in viscosity of the adhesive before lamination can be suppressed. , the production of laminated wood becomes easier. especially,
If you use a water-based adhesive that hardens on its own, such as a urea-based adhesive, and use a hardening agent that accelerates the hardening reaction, when laminating material veneers, the hardening agent will cause the adhesive to bond. Since the curing reaction of the agent is accelerated, the production speed of laminated wood is increased.
この発明の第３の方法は、素材単板の片面に塗
布する接着剤に予め必要量の硬化剤の一部を混合
するとともに、他面に塗布する水にその残部を混
合するものである。 A third method of the present invention is to mix a necessary amount of a part of the curing agent in advance with the adhesive applied to one side of the material veneer, and mix the remainder with the water applied to the other side.
すなわち、この方法は、接着剤中に予め硬化剤
の一部を混合しておくことにより、素材単板の積
層時における接着剤と硬化剤との混合状態を向上
させ、接着剤と硬化剤とを均一に混合させて硬化
むらの発生を防止するものである。 In other words, this method improves the mixing state of the adhesive and curing agent when laminating the material veneers by mixing a part of the curing agent into the adhesive in advance, and the adhesive and curing agent are mixed together. This is to prevent uneven curing by uniformly mixing the ingredients.
つぎに、実施例について説明する。 Next, examples will be described.
実施例 １
厚さ0.8mm、含水率15％（重量基準、以下同
じ）のベイマツ素材単板の表面に酢酸ビニル系接
着剤を120ｇ/m2の割合で塗布するとともに、裏面
に水を70ｇ/m2の割合で塗布した。つぎに、この
素材単板を、表面を上側にして複数枚積層し、つ
いでこれを圧締して接着した。その結果、積層木
材が得られた。この場合、素材単板の反りも起ら
ず、その積層作業は容易であつた。Example 1 Vinyl acetate adhesive was applied to the surface of a Douglas fir veneer with a thickness of 0.8 mm and a moisture content of 15% (based on weight, the same applies hereinafter) at a rate of 120 g/ m2 , and water was applied to the back surface at a rate of 70 g/m2. It was applied at a rate of m 2 . Next, a plurality of veneers of this material were laminated with their surfaces facing upward, and then they were pressed and bonded together. As a result, laminated wood was obtained. In this case, the material veneer did not warp, and the lamination work was easy.
実施例 ２
厚さ２mm、含水率12％のレツドラワン素材単板
の表面にユリヤ系接着剤を200ｇ/m2の割合で塗布
するとともに、裏面に塩化アンモニウムの５％水
溶液を70ｇ/m2の割合で塗布した。つぎに、この
素材単板を、表面を上側にして複数枚積層し、つ
いで圧締して接着した。その結果、積層木材が得
られた。この場合、素材単板の反りも起らず、か
つ接着剤の硬化が速やかに進行したため、積層木
材の製造を迅速に行うことができた。Example 2 A urea-based adhesive was applied at a rate of 200 g/m 2 to the surface of a veneer made of Letsdrawan material with a thickness of 2 mm and a moisture content of 12%, and a 5% aqueous solution of ammonium chloride was applied at a rate of 70 g/m 2 to the back side. It was coated with Next, a plurality of veneers of this material were laminated with their surfaces facing up, and then pressed and bonded together. As a result, laminated wood was obtained. In this case, the material veneer did not warp, and the adhesive hardened quickly, so the laminated wood could be manufactured quickly.
実施例 ３
厚さ２mm、含水率15％のラブラ素材単板の表面
にエポキシ系接着剤を100ｇ/m2の割合で塗布する
とともに、裏面に硬化剤を100ｇ/m2の割合で塗布
した。つぎに、この素材単板を、表面を上側にし
て複数枚積層し、ついで圧締して接着した。その
結果、積層木材が得られた。この場合も実施例２
と同様の効果が得られた。Example 3 An epoxy adhesive was applied at a rate of 100 g/m 2 to the surface of a veneer made of Labra material having a thickness of 2 mm and a moisture content of 15%, and a hardening agent was applied to the back surface at a rate of 100 g/m 2 . Next, a plurality of veneers of this material were laminated with their surfaces facing up, and then pressed and bonded together. As a result, laminated wood was obtained. Example 2 also in this case
A similar effect was obtained.
実施例 ４
厚さ２mm、含水率12％のレツドラワン素材単板
の表面にユリヤ−酢酸ビニル（配合比１：１）系
接着剤を200ｇ/m2の割合で塗布するとともに、裏
面に塩化アンモニウムの５％水溶液を45ｇ/m2の
割合で塗布した。つぎに、この素材単板を、表面
を上側にして複数枚積層し、ついで圧締して接着
した。その結果、積層木材が得られた。この場合
も実施例２と同様の効果を得ることができた。Example 4 A urea-vinyl acetate (mixing ratio 1:1) adhesive was applied at a rate of 200 g/m 2 to the surface of a veneer made of Letsdrawan material with a thickness of 2 mm and a moisture content of 12%, and ammonium chloride was applied to the back surface. A 5% aqueous solution was applied at a rate of 45 g/m 2 . Next, a plurality of veneers of this material were laminated with their surfaces facing up, and then pressed and bonded together. As a result, laminated wood was obtained. In this case as well, the same effects as in Example 2 could be obtained.
実施例 ５
厚さ1.5mm、含水率20％のシナ素材単板の表面
に、塩化アンモニウム硬化剤を接着剤に対して
0.3％混合したユリヤ系接着剤を200ｇ/m2の割合
で塗布するとともに、裏面に塩化アンモニウムの
1.5％水溶液を70ｇ/m2の割合で塗布した。つぎ
に、この素材単板を、表面を上側にして複数枚積
層し、ついで圧締して接着した。その結果、積層
木材が得られた。この場合、素材単板の反りも起
こらず、かつ硬化剤と接着剤との混合性が向上し
たため硬化むらも全く起こらず、さらに接着剤の
硬化が迅速になつた。Example 5 Ammonium chloride curing agent was applied to the adhesive on the surface of a 1.5 mm thick, 20% moisture content Chinese veneer.
Apply urea adhesive mixed with 0.3% at a rate of 200g/ m2 , and ammonium chloride on the back side.
A 1.5% aqueous solution was applied at a rate of 70 g/m 2 . Next, a plurality of veneers of this material were laminated with their surfaces facing up, and then pressed and bonded together. As a result, laminated wood was obtained. In this case, the material veneer did not warp, and the mixing properties of the curing agent and adhesive were improved, so there was no uneven curing at all, and the adhesive cured quickly.
実施例 ６
厚さ0.8mm、含水率12％のラブラ染色単板の表
面にユリヤ系接着剤を200ｇ/m2の割合で塗布する
とともに、裏面に塩化アンモニウムの５％水溶液
を100ｇ/m2の割合で塗布した。つぎに、この素材
単板を、表面を上側にして複数枚積層し、これを
押圧面に凹凸を有する型枠で圧締することにより
フリツチを得た。この場合、実施例２と同様の効
果が得られた。ついでこのフリツチを積層面に対
して水平にスライスすることによりチーク板目調
の化粧単板を得た。Example 6 A urea-based adhesive was applied at a rate of 200 g/m 2 to the surface of a Labra dyed veneer with a thickness of 0.8 mm and a moisture content of 12%, and a 5% aqueous solution of ammonium chloride was applied at a rate of 100 g/m 2 to the back side. Applied in proportions. Next, a plurality of veneers of this material were laminated with their surfaces facing upward, and a frit was obtained by pressing them together with a formwork having irregularities on the pressing surface. In this case, the same effects as in Example 2 were obtained. Next, this fritsch was sliced horizontally to the laminated surface to obtain a decorative veneer with a teak board finish.
Claims (1)
造する方法であつて、素材単板の積層に際して、
素材単板の片面に水性接着剤を塗布するととも
に、他面に水を塗布することを特徴とする積層木
材の製法。 ２ 素材単板を複数枚積層接着して積層木材を製
造する方法であつて、素材単板の積層に際して、
素材単板の片面に水性接着剤を塗布するととも
に、他面に硬化剤を混合した水を塗布し、素材単
板の片面が同一方向を向くように積層することを
特徴とする積層木材の製法。 ３ 素材単板を複数枚積層接着して積層木材を製
造する方法であつて、素材単板の積層に際して、
素材単板の片面に必要量の硬化剤の一部を混合し
た水性接着剤を塗布するとともに、他面に必要量
の硬化剤の残部を混合した水を塗布し、素材単板
の片面が同一方向を向くように積層することを特
徴とする積層木材の製法。[Claims] 1. A method for manufacturing laminated wood by laminating and bonding a plurality of material veneers, which comprises:
A manufacturing method for laminated wood that is characterized by applying a water-based adhesive to one side of the material veneer and applying water to the other side. 2. A method for manufacturing laminated wood by laminating and bonding a plurality of material veneers, in which, when laminating the material veneers,
A method for manufacturing laminated wood, which is characterized by applying a water-based adhesive to one side of a material veneer, applying water mixed with a hardening agent to the other side, and laminating the material veneers so that one side faces the same direction. . 3. A method for manufacturing laminated wood by laminating and bonding a plurality of material veneers, in which the material veneers are laminated,
Apply a water-based adhesive mixed with a part of the required amount of hardening agent to one side of the material veneer, and apply water mixed with the remainder of the required amount of hardening agent to the other side, so that one side of the material veneer is the same. A manufacturing method for laminated wood, which is characterized by laminating layers facing in the same direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12400978A JPS5551505A (en) | 1978-10-07 | 1978-10-07 | Preparation of laminated wood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12400978A JPS5551505A (en) | 1978-10-07 | 1978-10-07 | Preparation of laminated wood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5551505A JPS5551505A (en) | 1980-04-15 |
| JPS6113963B2 true JPS6113963B2 (en) | 1986-04-16 |
Family
ID=14874757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12400978A Granted JPS5551505A (en) | 1978-10-07 | 1978-10-07 | Preparation of laminated wood |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5551505A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10799274B2 (en) | 2012-08-13 | 2020-10-13 | Tornier | Device for coaptation of bone fragments and methods for producing such a device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0679759B2 (en) * | 1985-07-01 | 1994-10-12 | トヨタ自動車株式会社 | Vertical die casting method |
| JPH06102263B2 (en) * | 1987-10-06 | 1994-12-14 | 宇部興産株式会社 | Plunger tip structure |
-
1978
- 1978-10-07 JP JP12400978A patent/JPS5551505A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10799274B2 (en) | 2012-08-13 | 2020-10-13 | Tornier | Device for coaptation of bone fragments and methods for producing such a device |
| US11653959B2 (en) | 2012-08-13 | 2023-05-23 | Tornier | Device for coaptation of bone fragments and methods for producing such a device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5551505A (en) | 1980-04-15 |
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