JPH0521953B2 - - Google Patents

Info

Publication number
JPH0521953B2
JPH0521953B2 JP57126531A JP12653182A JPH0521953B2 JP H0521953 B2 JPH0521953 B2 JP H0521953B2 JP 57126531 A JP57126531 A JP 57126531A JP 12653182 A JP12653182 A JP 12653182A JP H0521953 B2 JPH0521953 B2 JP H0521953B2
Authority
JP
Japan
Prior art keywords
component
adherend
adhesive
curing agent
agent component
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 - Lifetime
Application number
JP57126531A
Other languages
Japanese (ja)
Other versions
JPS5915472A (en
Inventor
Takamasa Ishihara
Hirobumi Tsuka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taoka Chemical Co Ltd
Original Assignee
Taoka Chemical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Taoka Chemical Co Ltd filed Critical Taoka Chemical Co Ltd
Priority to JP12653182A priority Critical patent/JPS5915472A/en
Publication of JPS5915472A publication Critical patent/JPS5915472A/en
Publication of JPH0521953B2 publication Critical patent/JPH0521953B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/06—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying two different liquids or other fluent materials, or the same liquid or other fluent material twice, to the same side of the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
    • B05C1/0834—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets the coating roller co-operating with other rollers, e.g. dosing, transfer rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/027—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated

Landscapes

  • Veneer Processing And Manufacture Of Plywood (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)
  • Laminated Bodies (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Description

【発明の詳細な説明】[Detailed description of the invention]

本発明は積層体の製造方法に関する。更に詳し
くは、本発明は熱硬化性接着剤を用いて積層体を
製造する方法において、該接着剤を有効かつ工業
的に有利に適用して積層体を製造する方法に関す
る。 従来、積層体の製造には各種の接着剤が用いら
れているが、種々の方法で接着剤の樹脂成分を３
次元化し不溶不融化して強固な接着を完成させる
熱硬化性接着剤が多用されている。とりわけ主剤
成分と硬化剤成分から成り常温で硬化し得る熱硬
化性接着剤が多用されている。これらの常温硬化
型の接着剤は、その使用直前に主剤成分と硬化剤
成分が混合されるが、混合後は直に架橋反応が起
り、ついには固化して接着剤としての硬化が失わ
れるために実用面では夫々の接着剤の種類に応じ
て設定された可使時間内に接着作業を完了する必
要がある。従来、そのために各種接着方法が提案
され実用化されているが、尚種々の問題があり特
に被着面積が大きい場合に有利に適用し得る工業
的有利な接着方法は知られていない。 一般に被着面積が大きい場合の接着剤の塗布
は、もつぱらローラーを用いて行われているがこ
の際接着剤のロール適性が問題となる。即ちロー
ラーを用いて塗布するには接着剤に適度の流動性
が必要となりこのために主剤成分と硬化剤成分を
混合し更に各種添加剤を加えて流動性を調整する
必要がある。 更には、被着体の末端部分の接着を完全ならし
めるため、該末端部分から接着剤が零れ出るよう
に塗布しているのが実情であつて、かくして零余
の接着剤は既に主剤成分と硬化剤成分とが混合さ
れているのでその可使時間の故にこれを回収再利
用することは不可能であり不経済であつた。 本発明者らは上記した種々の問題を一挙に解決
し、熱硬化性接着剤を有効かつ工業的有利に適用
しうる積層体の製造方法を開発すべく鋭意検討の
結果、被着体に主剤成分と硬化剤成分とを独立
に、しかもその性状に応じて使い分けして適用す
ることが有効であることを見出し、本発明を完成
するに至つた。 即ち、本発明は、主剤成分および硬化剤成分か
ら成る熱硬化性接着剤を用いて、被着体を適当な
速度で一定方向に連続的に移動させることによつ
て積層体を製造する方法において、チクソトロピ
ー性を有する粘度約1600〜7000センチポイズ（60
回転／分の時の回転粘度計での測定値）を有する
主剤成分または硬化剤成分のいずれか一方の成分
を被着体表面全体に塗布し、次いでチクソトロピ
ー性を有しないか或いはチクソトロピー性の小さ
い他方の成分を該塗布面より上に所定距離離れた
位置に配置されている複数の吐出口より紐状また
は糸状に吐出流下せしめながら該塗布面に複数の
線状に塗布した後、塗布処理された被着面上に他
の被着体を重ね加圧接着することを特徴とする積
層体の製造方法である。 本発明方法においては、チクソトロピー性を有
する成分（主剤成分および硬化剤成分）を全面塗
布した被着面上にチクソトロピー性を有しないか
或いはチクソトロピー性の小さい他方の成分（主
剤成分および硬化剤成分）を吐出口より吐出流下
せしめて線状に塗布するためには、吐出口部分ま
たは／および被着体を適当な速度で一定方向に移
動することにより行われることを必須とする。 本発明方法によれば、主剤成分と硬化剤成分は
被着体上で混合されることになり、従来問題とな
つていた接着剤の可使時間による制限はなく、ま
たローラーを用いる塗布方法においては主剤成分
または硬化剤成分のいずれか一方にロール適性を
付与するのみでよく、更には被着体の末端部分か
ら零れ出た成分はこれを回収再使用することがで
きる等の利点を有する。 本発明方法で用いることができる熱硬化性接着
剤は従来から用いられているいずれでもよく、エ
ポキシ系、ウレタン系、尿素−メラミン−ホルマ
リン系、フエノール類−ホルマリン系、各種ビニ
ル系、セルロース系接着剤などが例示される。一
般にこれら接着剤においては、粘度、流動性を調
整する目的で充填剤、フイラーなど無機質粉体、
セルロース系、パラホルムなど有機質粉体などが
主剤成分または硬化剤成分に添加されており、そ
のためにチクソトロピー性を有する場合が多い。
本発明方法は、このような接着剤を用いるときに
特に有効である。 即ち、主剤成分または硬化剤成分のいずれか一
方がチクソトロピー性を有する熱硬化性接着剤を
用いて積層体を製造するに際しては、チクソトロ
ピー性を有する成分を先ず被着体表面全体に塗布
し、次いでチクソトロピー性を有しないかあるい
はチクソトロピー性がより小さい他方成分を吐出
口よる吐出流下せしめて該塗布面に線上に塗布す
ることにより工業的に有利に積層体を製造するこ
とができる。 吐出流下による塗布量が多い場合、あるいは吐
出口部分あるいは／および被着体の移動速度が速
い場合などは、チクソトロピー性を有する成分を
吐出流下せしめる側に用いてもよいが、チクソト
ロピー性が大きい場合には、吐出口で加えられた
圧力が開放されることを流動性が低下し吐出口附
近に付着し連続的な流下が困難となるので上記し
た方法が工業的に有利である。 本発明は、まず、チクソトロピー性を有する粘
度約1600〜7000センチポイズ（60回転／分の時の
回転粘度計での測定値）を有する主剤成分または
硬化剤成分のいずれか一方の成分を被着体表面全
体に塗布し、次いでチクソトロピー性を有しない
か或いはチクソトロピー性の小さい他方の成分を
該塗布面より上に所定距離離れた位置に配置され
ている複数の吐出口より紐状または糸状に吐出流
下せしめながら該塗布面に複数の線状に塗布する
ことを特徴とするが、ここで、被着体表面全体に
布する方法は、従来行われている何処なる方法で
もよく、被着体面積が大きい場合はロールコータ
ーまたはスプレツダーによる塗布が有利である。
また、他方の成分を複数の線上に塗布するには、
複数の吐出口（ノズル）を有する装置が有利であ
る。このようなノズルの形状、配置は特に制限さ
れるものではなく、他方成分の塗布量、あるいは
ノズル部分または／および被着体の移動速度など
を考慮して適宜決定することができる。ノズルか
ら他方成分が連続的に紐状または糸状に吐出流下
され、また被着体面上で一方成分と均一に混合さ
れるために、ノズルの口径を約0.5乃至３mm、ノ
ズル間の間隔を約0.5乃至５mmに調整することが
工業的・実際的に好ましいことを見出した。 吐出口部分あるいは／および被着体の移動速度
は特に限定されるものではなく、他方成分の性状
および塗布量により適宜決定することができる。 また、主剤成分に対する硬化剤成分の比率は、
通常約12.5〜25重量％の範囲で好ましく適用され
る。 このようにして主剤成分および硬化剤成分を塗
布した被着体面上に他の被着体を重ね、次いで通
常の方法で圧締して積層体を得ることができる。 次に本発明方法を図面によつてより詳細に説明
する。 第１図は本発明方法の実施の好ましい態様の１
例を示すものであり、図中、１は主剤成分または
硬化剤成分のいずれか一方の成分〔以下成分(A)と
称す〕を、２は成分(A)を塗布する回転ロールを、
３は複数の吐出口（ノズル）を有する容器を、４
は吐出口（ノズル）を、５は硬化剤成分または主
剤成分のいずれか他方の成分〔以下成分(B)と称
す〕を、６は成分(B)の貯槽および回収槽を、７は
加圧ポンプを、８は被着体を夫々表わす。また、
矢印９は被着体の移動方向を示す。 成分(A)１は回転ロール２の回転により被着体８
の全面に塗布される。貯槽および回収槽６に貯蔵
されている成分(B)５は加圧ポンプ７によつて容器
３に送り込まれ、吐出口４から成分(A)１が塗布さ
れた被着体８上に紐状または糸状に吐出流下され
る。吐出流下された成分(B)５は被着体８が矢印９
方向に移動することにより被着体上に線状に塗布
される。このとき、容器３の巾を被着体８の巾よ
りやや広くすることにより被着体８の両末端部ま
で十分に成分(B)５が塗布され、両末端部の外側か
ら零れ出た成分(B)は貯槽および回収槽６に回収再
利用される。このようにして塗布処理された被着
体８に他の被着体を重ね圧締することにより被着
体８の全面に塗布された成分と、その上に線上に
塗布された成分とが混合され接着が完了する。成
分(A)および(B)の塗布量、塗布速度、塗布処理され
た被着体８に他の被着体を重ねて圧締するときの
圧力などは特に制限されるものでなく当技術分野
で現在広く行われている方法に従つて適宜決定す
ることができる。 従来行われている塗布方法によれば主剤成分と
硬化剤成分との混合槽など塗布設備および塗布用
具等を塗布操作毎に有機溶剤等で洗浄する必要が
あつたが本発明方法によればこのような洗浄は必
要なく数日間の連続または断続運転が可能とな
り、また接着剤成分の塗布方法が経済的でかつ操
作が容易であるために積層体が極めて工業的有利
に製造される。 以下本発明を実施例によつてより詳細に説明す
る。例中部は重量部を表わす。 実施例 １ 市販酢ビエマルジヨン（ポリビニルアルコール
保護コロイド）100部に炭酸カルシウム粉体20部
を加えて良く混合し主剤成分(A)を作成した。この
成分(A)の粘度は、回転粘度計での測定で60回転／
分のローター回転速度時の測定値は7000センチポ
イズであり６回転／分の時の粘度は21000センチ
ポイズであつてチクソトロピー性を有するもので
あつた。 次に硬化剤成分としてスミデユールE21−１
（住友バイエルウレタン社製）100部に対してキシ
レン10部を加えて成分(B)を調整した。この成分(B)
は上記と同様な方法で粘度を測定した結果各々
2000センチポイズ、2200センチポイズであつてチ
クソトロピー性は殆ど有しないものであつた。こ
れらの成分を第１図に示す設備で、被着体として
ラワン単板を用い、単板の移動速度を20ｍ／分と
して成分(A)を240ｇ／m2および成分(B)を30ｇ／m2
となる様塗布した。塗布処理した単板に同様の単
板を重ね合せて圧締することによつてラワン合板
を得た。 このラワン合板についてJAS規格タイプＩで接
着力試験を行つた。結果は第１表に示した。 なお表中、堆積時間は、接着剤塗布後圧締工程
で冷圧をかけるまでの放置時間（堆積時間）を示
すものである。 これらの接着剤塗布条件で接着剤塗布工程を10
分間運転、休止60分間の断続運転を５回くり返し
たが接着剤成分は何れも粘度変化はわずかであ
り、更に運転を継続できる状態であつた。 The present invention relates to a method for manufacturing a laminate. More specifically, the present invention relates to a method of manufacturing a laminate using a thermosetting adhesive, and a method of manufacturing a laminate by effectively and industrially advantageous application of the adhesive. Conventionally, various adhesives have been used in the production of laminates, but the resin components of the adhesive can be reduced by various methods.
Thermosetting adhesives are widely used because they are dimensionalized, insoluble, and infusible to achieve strong adhesion. In particular, thermosetting adhesives that are composed of a base component and a curing agent component and can be cured at room temperature are often used. In these room-temperature-curing adhesives, the main component and curing agent component are mixed just before use, but a crosslinking reaction occurs immediately after mixing, which eventually hardens and loses its hardening as an adhesive. In practical terms, it is necessary to complete the bonding work within the pot life set depending on the type of adhesive. Conventionally, various bonding methods have been proposed and put into practical use for this purpose, but there are still various problems and no industrially advantageous bonding method is known that can be particularly advantageously applied when the adhesion area is large. Generally, when applying an adhesive to a large area, a roller is used to apply the adhesive, but in this case, the rollability of the adhesive becomes a problem. That is, in order to apply using a roller, the adhesive needs to have appropriate fluidity, and for this reason, it is necessary to mix the main component and the curing agent component and further add various additives to adjust the fluidity. Furthermore, in order to ensure complete adhesion at the end of the adherend, the reality is that the adhesive is applied in such a way that it spills out from the end, and in this way, the excess adhesive has already become part of the main component. Since it is mixed with a curing agent component, it is impossible and uneconomical to collect and reuse it due to its pot life. The present inventors solved the various problems mentioned above all at once, and as a result of intensive studies to develop a method for manufacturing a laminate in which thermosetting adhesives can be effectively and industrially advantageously applied, we found that The present inventors have discovered that it is effective to use the curing agent component and the curing agent component independently and selectively depending on their properties, and have completed the present invention. That is, the present invention provides a method for manufacturing a laminate by continuously moving an adherend at an appropriate speed in a fixed direction using a thermosetting adhesive consisting of a base component and a curing agent component. , viscosity approximately 1600-7000 centipoise (60
Either the main component or the curing agent component having a rotational viscometer (measured at revolutions per minute) is applied to the entire surface of the adherend, and then the adhesive has no thixotropy or has low thixotropy. The other component is applied to the application surface in a plurality of lines while being discharged down in a string or thread form from a plurality of discharge ports arranged at a predetermined distance above the application surface, and then the application process is performed. This method of manufacturing a laminate is characterized in that another adherend is stacked on the adherend surface and bonded under pressure. In the method of the present invention, a component having thixotropic properties (base component and curing agent component) is coated on the entire surface to which the other component (base component and curing agent component) has no thixotropy or has low thixotropy. In order to cause the liquid to flow down from the discharge port and apply it in a linear manner, it is essential to move the discharge port portion and/or the adherend in a certain direction at an appropriate speed. According to the method of the present invention, the main component and the curing agent component are mixed on the adherend, so there is no limitation on the pot life of the adhesive, which was a problem in the past, and there is no need to limit the pot life of the adhesive, which was a problem in the past. This method has the advantage that it is only necessary to impart rollability to either the main component or the curing agent component, and furthermore, the component spilled from the end portion of the adherend can be recovered and reused. The thermosetting adhesive that can be used in the method of the present invention may be any conventionally used adhesive, such as epoxy adhesive, urethane adhesive, urea-melamine-formalin adhesive, phenol-formalin adhesive, various vinyl adhesives, and cellulose adhesives. Examples include agents. Generally, these adhesives contain inorganic powders such as fillers and fillers for the purpose of adjusting viscosity and fluidity.
Organic powders such as cellulose and paraform are added to the main component or hardening agent component, and therefore often have thixotropic properties.
The method of the present invention is particularly effective when using such adhesives. That is, when manufacturing a laminate using a thermosetting adhesive in which either the base component or the curing agent component has thixotropic properties, the thixotropic component is first applied to the entire surface of the adherend, and then A laminate can be produced industrially advantageously by discharging the other component, which does not have thixotropy or has less thixotropy, through a discharge port and applies it linearly onto the coating surface. When the amount of coating due to the discharge flow is large, or when the movement speed of the discharge port portion and/or the adherend is fast, a component with thixotropy may be used on the side that causes the discharge flow to flow down, but if the thixotropy is large. The above-mentioned method is industrially advantageous because when the pressure applied at the discharge port is released, the fluidity decreases and adheres to the vicinity of the discharge port, making continuous flow difficult. In the present invention, first, either a base component or a curing agent component having a thixotropic viscosity of approximately 1,600 to 7,000 centipoise (measured with a rotational viscometer at 60 rotations/min) is applied to an adherend. It is applied to the entire surface, and then the other component, which does not have thixotropy or has low thixotropy, is discharged down in a string or thread form from a plurality of discharge ports arranged at a predetermined distance above the applied surface. However, the method of applying the cloth over the entire surface of the adherend may be any conventional method, and if the area of the adherend is If the size is large, application using a roll coater or a spreader is advantageous.
Also, to apply the other component on multiple lines,
Devices with multiple outlets (nozzles) are advantageous. The shape and arrangement of such a nozzle are not particularly limited, and can be appropriately determined in consideration of the amount of coating of the other component, the moving speed of the nozzle portion and/or the adherend, and the like. In order for the other component to be continuously discharged down from the nozzle in the form of a string or thread, and to be uniformly mixed with the other component on the surface of the adherend, the diameter of the nozzle should be approximately 0.5 to 3 mm, and the distance between the nozzles should be approximately 0.5 mm. It has been found that it is industrially and practically preferable to adjust the thickness to 5 mm. The moving speed of the discharge port portion and/or the adherend is not particularly limited, and can be appropriately determined depending on the properties of the other component and the amount of application. In addition, the ratio of the curing agent component to the main component is
Usually, it is preferably applied in a range of about 12.5 to 25% by weight. A laminate can be obtained by overlaying another adherend on the surface of the adherend coated with the main component and curing agent component in this manner, and then pressing the adherend in a conventional manner. Next, the method of the present invention will be explained in more detail with reference to the drawings. FIG. 1 shows a preferred embodiment of the method of the present invention.
This is an example. In the figure, 1 indicates either the main component or the curing agent component [hereinafter referred to as component (A)], and 2 indicates a rotating roll for applying component (A).
3 is a container having multiple discharge ports (nozzles);
indicates the discharge port (nozzle), 5 indicates the other component of the curing agent component or the main component (hereinafter referred to as component (B)), 6 indicates the storage tank and recovery tank of component (B), and 7 indicates the pressurization 8 represents the pump, and 8 represents the adherend. Also,
Arrow 9 indicates the direction of movement of the adherend. Component (A) 1 is transferred to the adherend 8 by the rotation of the rotating roll 2.
is applied to the entire surface. Component (B) 5 stored in the storage tank and recovery tank 6 is fed into the container 3 by a pressure pump 7, and is applied in the form of a string onto the adherend 8 coated with component (A) 1 from the discharge port 4. Or it is discharged down in the form of a thread. The discharged component (B) 5 has an adherend 8 as shown by the arrow 9
By moving in the direction, it is applied linearly onto the adherend. At this time, by making the width of the container 3 slightly wider than the width of the adherend 8, the component (B) 5 is sufficiently applied to both ends of the adherend 8, and the component spills out from the outside of both ends. (B) is collected and reused in the storage tank and recovery tank 6. By stacking and pressing another adherend onto the adherend 8 coated in this way, the components applied to the entire surface of the adherend 8 and the components applied linearly thereon are mixed. and the gluing is completed. There are no particular restrictions on the amount of coating of components (A) and (B), the coating speed, the pressure when pressing another adherend onto the coated adherend 8, and the like. It can be appropriately determined according to the method currently widely used. According to the conventional coating method, it was necessary to clean the coating equipment such as the mixing tank for the base agent component and the curing agent component, and the coating tools with an organic solvent etc. after each coating operation, but with the method of the present invention, this is possible. Such washing is not necessary, and continuous or intermittent operation for several days is possible, and the method of applying the adhesive component is economical and easy to operate, so the laminate can be produced with great industrial advantage. The present invention will be explained in more detail below using examples. The middle part of the example represents parts by weight. Example 1 20 parts of calcium carbonate powder was added to 100 parts of a commercially available vinegar beer emulsion (polyvinyl alcohol protective colloid) and mixed well to prepare a base component (A). The viscosity of this component (A) was measured using a rotational viscometer at 60 rotations/
The measured value was 7,000 centipoise at a rotor rotational speed of 1/2, and the viscosity was 21,000 centipoise at a rotor rotation speed of 6/min, indicating thixotropic properties. Next, Sumideur E21-1 is used as a curing agent component.
(manufactured by Sumitomo Bayer Urethane) 10 parts of xylene was added to 100 parts to prepare component (B). This ingredient (B)
are the results of measuring viscosity using the same method as above.
They were 2000 centipoise and 2200 centipoise, and had almost no thixotropic properties. Using the equipment shown in Figure 1, using lauan veneer as the adherend and moving the veneer at a speed of 20 m/min, component (A) was added at 240 g/m 2 and component (B) was added at 30 g/m 2. 2
It was applied so that Lauan plywood was obtained by superimposing a similar veneer on the coated veneer and pressing it together. An adhesion test was conducted on this lauan plywood according to JAS standard type I. The results are shown in Table 1. In the table, the deposition time indicates the standing time (deposition time) after applying the adhesive until cold pressure is applied in the pressing step. The adhesive application process was repeated 10 times under these adhesive application conditions.
Intermittent operation of 60 minutes of operation with 60 minutes of rest was repeated five times, but there was only a slight change in the viscosity of the adhesive components, and the operation could be continued.

【表】 比較例 １ 実施例１と全く同じ接着剤成分を混合し、スプ
レツダー及びノズルより吐出させる方法で塗布を
行つたが経時的に増粘が観察され、前者では２時
間後、後者では１時間後にそれぞれ塗布操作がで
きなくなつた。 比較例 ２ 実施例１での成分(A)をノズルより吐出流下させ
る方法で塗布すべくノズル口径の大きさの調整、
ポンプ流量調整等各種こころみたがノズル部分の
単位長当りの穴の数が200個／ｍでは500ｇ／m2以
下の塗布量では連続した接着剤の流下が得られな
かつた。 実施例 ２ カスコ社のレゾルシン−フエノールホルマリン
接着剤であるシンテコ1774、2674、2574を用いて
実施例１の設備で接着剤塗布試験を行つた。成分
(A)としてシンテコ2674（流体）100部とシンテコ
2574（粉体）57部を混合したものを調整した。こ
の成分は硬化剤成分である。成分(B)としてシンテ
コ1774（流体）を市販されているままで使用した。
接着剤成分(A)を実施例１と同様な方法で測定する
と1600センチポイズ、4600センチポイズでチクソ
トロピー性を有するものであつた。成分(B)も同様
な方法で粘度を測定した結果7000センチポイズ、
9000センチポイズであつた。成分(A)をスプレツダ
ーで成分(B)をノズルより吐出流下させ集成材用エ
ゾ松ラミナーに塗布した。移動速度を30ｍ／分と
し、各々の成分が50ｇ／m2、200ｇ／m2となる様
に調整して塗布した。このようにして得た集成材
をJAS集成材規格により試験を行つた。結果を第
２表に示す。この接着条件で１週間以上の断続運
転が可能であつた。[Table] Comparative Example 1 The same adhesive components as in Example 1 were mixed and applied by discharging from a spreader and nozzle, but thickening was observed over time. After some time, the coating operation became impossible. Comparative Example 2 Adjusting the size of the nozzle diameter in order to apply the component (A) in Example 1 by discharging it down the nozzle,
Various attempts were made to adjust the pump flow rate, but when the number of holes per unit length of the nozzle was 200/m, continuous flow of adhesive could not be obtained with a coating amount of 500 g/m 2 or less. Example 2 An adhesive application test was conducted using the equipment of Example 1 using Synteco 1774, 2674, and 2574, which are resorcinol-phenol-formalin adhesives manufactured by Casco. component
(A) 100 parts of Synteco 2674 (fluid) and Synteco
A mixture of 57 parts of 2574 (powder) was prepared. This component is a curing agent component. Synteco 1774 (fluid) was used as component (B) as commercially available.
Adhesive component (A) was measured in the same manner as in Example 1 and was found to have thixotropic properties at 1,600 centipoise and 4,600 centipoise. The viscosity of component (B) was measured in the same way, and the result was 7000 centipoise.
It was 9000 centipoise. Component (A) was applied to Scots pine lamina for laminated wood by discharging component (B) from a nozzle using a spreader. The moving speed was 30 m/min, and the amounts of each component were adjusted to 50 g/m 2 and 200 g/m 2 . The thus obtained laminated wood was tested according to the JAS laminated wood standard. The results are shown in Table 2. Under these bonding conditions, intermittent operation for one week or more was possible.

【表】 比較例 ３ 実施例２の接着剤成分(A)及び(B)をノズル吐出タ
イプの塗布機２台で接着剤を塗布することをここ
ろみたが接着剤成分(A)を連続的に流下させ50ｇ／
m2の割合で塗布するためには150ｍ／分の速度で
集成材用ラミナーを移動させる必要があつた。こ
の速度は集成材製造工程としては早すぎて危険で
あると判断され実施できなかつた。 比較例 ４ 実施例２の成分(A)及び成分(B)を各々100部と25
部を混合してスプレツダー上に乗せ回転させてお
くと20分経過後より徐々に増粘し、２時間後には
増粘によりロールを回転させることが不可能にな
つた。[Table] Comparative Example 3 We tried to apply adhesive components (A) and (B) of Example 2 using two nozzle discharge type applicators, but adhesive component (A) was applied continuously. 50g/
In order to apply at a rate of m 2 , it was necessary to move the laminated wood lamina at a speed of 150 m/min. This speed was too fast for a laminated wood manufacturing process and was considered dangerous, so it could not be implemented. Comparative Example 4 100 parts and 25 parts of component (A) and component (B) of Example 2, respectively.
When the mixture was mixed and rotated on a spreader, the viscosity gradually increased after 20 minutes, and after 2 hours it became impossible to rotate the roll due to the increased viscosity.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、本発明方法の実施の好ましい態様の
１例を示す概略図であり、図中の各符号は以下の
意味を表わす。 １……主剤成分または硬化剤成分のいずれか一
方の成分(A)、２……回転ロール、３……複数の吐
出口を有する容器、４……吐出口、５……硬化剤
成分または主剤成分のいずれか他方の成分(B)、６
……成分(B)の貯槽および回収槽、７……加圧ポン
プ、８……被着体、９……被着体の移動方向。 FIG. 1 is a schematic diagram showing one example of a preferred embodiment of the method of the present invention, and each symbol in the figure represents the following meaning. 1...Either component (A) of the main component or the curing agent component, 2...Rotating roll, 3...Container having multiple discharge ports, 4...Discharge port, 5...Curing agent component or the main component The other component (B), 6
...Storage tank and collection tank for component (B), 7...Pressure pump, 8...Adherent, 9...Movement direction of the adherend.

Claims (1)

【特許請求の範囲】 １ 主剤成分および硬化剤成分から成る熱硬化性
接着剤を用いて、被着体を適当な速度で一定方向
に連続的に移動させることによつて積層体を製造
する方法において、チクソトロピー性を有する粘
度約1600〜7000センチポイズ（60回転／分の時の
回転粘度計での測定値）を有する主剤成分または
硬化剤成分のいずれか一方の成分を被着体表面全
体に塗布し、次いでチクソトロピー性を有しない
か或いはチクソトロピー性の小さい他方の成分を
該塗布面より上に所定距離離れた位置に配置され
ている複数の吐出口より紐状または糸状に吐出流
下せしめながら該塗布面に複数の線状に塗布した
後、塗布処理された被着面上に他の被着体を重ね
加圧接着することを特徴とする積層体の製造方
法。 ２ 塗布される主剤成分に対する硬化剤成分の比
率が、約12.5〜25重量％である特許請求の範囲１
に記載の積層体の製造方法。 ３ 接着剤が、フエノール類−ホルマリン系接着
剤である特許請求の範囲１又は２のいずれかに記
載の積層体の製造方法。[Claims] 1. A method of manufacturing a laminate by using a thermosetting adhesive consisting of a base component and a curing agent component and continuously moving an adherend in a fixed direction at an appropriate speed. In this method, either the main component or the curing agent component having a thixotropic viscosity of approximately 1,600 to 7,000 centipoise (measured with a rotational viscometer at 60 revolutions/min) is applied to the entire surface of the adherend. Then, the other component, which does not have thixotropy or has low thixotropy, is applied while being discharged down in a string or thread form from a plurality of discharge ports arranged at a predetermined distance above the application surface. 1. A method for manufacturing a laminate, which comprises coating a surface in a plurality of lines, and then stacking another adherend on the coated surface and bonding it under pressure. 2. Claim 1, wherein the ratio of the curing agent component to the base agent component to be applied is about 12.5 to 25% by weight.
A method for manufacturing a laminate according to. 3. The method for producing a laminate according to claim 1 or 2, wherein the adhesive is a phenol-formalin adhesive.
JP12653182A 1982-07-19 1982-07-19 Preparation of laminated material Granted JPS5915472A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12653182A JPS5915472A (en) 1982-07-19 1982-07-19 Preparation of laminated material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12653182A JPS5915472A (en) 1982-07-19 1982-07-19 Preparation of laminated material

Publications (2)

Publication Number Publication Date
JPS5915472A JPS5915472A (en) 1984-01-26
JPH0521953B2 true JPH0521953B2 (en) 1993-03-26

Family

ID=14937504

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12653182A Granted JPS5915472A (en) 1982-07-19 1982-07-19 Preparation of laminated material

Country Status (1)

Country Link
JP (1) JPS5915472A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0199670A (en) * 1987-10-12 1989-04-18 Iida Kogyo Kk Method or coating adhesive agent
JPH07195013A (en) * 1994-01-12 1995-08-01 Sankyo Alum Ind Co Ltd Adhesive coater
US6458417B2 (en) 2000-07-07 2002-10-01 Akzo Nobel N.V. Method of gluing
JP5534841B2 (en) * 2010-02-05 2014-07-02 アイカ工業株式会社 Adhesive separation coating apparatus and method for manufacturing wood laminate using the same
JP2013226680A (en) * 2012-04-25 2013-11-07 Akita Prefectural Univ Wood-based laminate molding
JPWO2014155661A1 (en) * 2013-03-29 2017-02-16 共栄制御機器株式会社 Adhesive coating apparatus, bonding apparatus, and method for manufacturing bonded member
CN104875253A (en) * 2015-05-06 2015-09-02 舒城县小不点儿童用品有限公司 Sheet material automatic gluing apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5134243A (en) * 1974-09-18 1976-03-23 Nitto Electric Ind Co
JPS5232028A (en) * 1975-09-05 1977-03-10 Hitachi Ltd Method for applying two-component adhesives
JPS571460A (en) * 1980-06-03 1982-01-06 Jiyuuken Sangyo:Kk Method and apparatus for coating two component type adhesive onto plate like article

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5134243A (en) * 1974-09-18 1976-03-23 Nitto Electric Ind Co
JPS5232028A (en) * 1975-09-05 1977-03-10 Hitachi Ltd Method for applying two-component adhesives
JPS571460A (en) * 1980-06-03 1982-01-06 Jiyuuken Sangyo:Kk Method and apparatus for coating two component type adhesive onto plate like article

Also Published As

Publication number Publication date
JPS5915472A (en) 1984-01-26

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