JP2004148534A - Method and equipment for manufacturing false adhesion paper - Google Patents

Method and equipment for manufacturing false adhesion paper Download PDF

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Publication number
JP2004148534A
JP2004148534A JP2002313252A JP2002313252A JP2004148534A JP 2004148534 A JP2004148534 A JP 2004148534A JP 2002313252 A JP2002313252 A JP 2002313252A JP 2002313252 A JP2002313252 A JP 2002313252A JP 2004148534 A JP2004148534 A JP 2004148534A
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Japan
Prior art keywords
pseudo
adhesive
paper
coating
foreign matter
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JP2002313252A
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Japanese (ja)
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JP2004148534A5 (en
Inventor
Mineyasu Nishizawa
峰靖 西沢
Akihiko Sekiya
昭彦 関谷
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Daio Paper Corp
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Daio Paper Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To improve the speed of manufacture of false adhesion paper. <P>SOLUTION: The false adhesion paper is manufactured by a process of coating at least one of the surface and the rear of base paper with a false adhesive, a process of detecting a foreign matter mixing in the surface coated with the false adhesive and a coating defect thereof by a reflection-type defect detecting means, a process of putting a visible mark on the base paper or the coated surface so that the positions of the foreign matter and the coating defect being detected can be specified and a process of removing the foreign matter mixing in and the portion of the coating defect on the basis of the mark. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、一時的に接着するが、必要時に容易に剥離できる機能を有する疑似接着用紙の製造方法に関するものである。さらに詳しく述べれば、基紙の少なくとも一方の面に、通常状態では接着せず所定の条件(例えば圧力を加えることにより)が付与されることにより接着性を示し、かつ接着後に再剥離が可能な疑似接着剤層が設けられている、折り畳み疑似接着用シート、重ね合わせ疑似接着用シート、その他親展性を有する情報隠蔽シート、親展性葉書、親展性封筒等に好適な疑似接着用紙の製造方法および製造装置に関する。
【0002】
【従来の技術】
個人情報などの各種情報を隠蔽したのち、郵送し、受取人が疑似接着部分を剥離して隠蔽情報を読み取る葉書システムが普及している。葉書システムは、会社が従業員にあるいは銀行やクレジット会社が顧客に親展性を有する情報を連絡する場合に使用されることが多く、親展性情報の漏洩防止性、情報連絡の利便性、開封の容易性(剥離性)が重要である。
【0003】
このような葉書システムには、上質紙等の基紙に天然ゴムラテックス等の接着基剤に充填剤等を含有せしめた疑似接着剤を塗工して一時的には接着するが必要時に容易に剥離する疑似接着剤層を設けた疑似接着用紙が使用される。
【0004】
疑似接着用紙では、上述のように剥離性が重要となるため、剥離時の破損事故を生じさせるような、疑似接着剤層への異物混入あるいは塗工欠陥が少ないことが要求される。従って、疑似接着剤を塗工するにあたっては、塗工速度は高速ではあるが塗工欠陥の発生や塗工液粕の塗工面へ混入のおそれが高いブレード方式やロッド方式の塗工機は用いられず、一般にはそのようなおそれの少ないエアナイフ方式の塗工機が用いられる。また、通常は、欠陥検出器としては汚れや虫等の黒点異物を検出するための透過型欠陥検出器やストリーク検出器が使用されている。
【特許文献1】
特開平08−278262
【特許文献2】
特開平11−035204
【0005】
【発明が解決しようとする課題】
しかしながら、エアナイフ方式の塗工機では、エアーのかみ込みに起因するコーターヘッド循環ライン中の疑似接着剤の物性変化が、大きいという欠点を有する。さらに、エアナイフ方式の塗工機は、塗工速度が非常に遅く、生産性、作業性の観点からは上述のブレード方式やロッド方式の塗工機に劣っている。
【0006】
そこで、本発明の主たる課題は、疑似接着用紙の製造方法において、塗工面に付着した糊粕などの白色異物等を効果的に検出・除去することを可能とするとともに、ブレード方式、ロッド方式といったエアナイフ方式よりも高速塗工が可能な塗工方式により塗工を可能とし、疑似接着用紙の生産性および作業性を向上させることにある。
【0007】
【課題を解決するための手段】
上記課題を解決した本発明およびその作用効果は次記のとおりである。
<請求項1記載の発明>
基紙の少なくとも一方の面に、通常の状態では接着せず加圧によって剥離可能に疑似接着する疑似接着剤層を有する疑似接着用紙の製造方法であって、
前記基紙の表裏面の少なくとも一方の面に疑似接着剤を塗工する工程、
前記疑似接着剤の塗工面に混入した異物および塗工欠陥を反射型欠陥検出手段によって検出する工程、
検出された異物および塗工欠陥の位置が特定できるように、基紙または塗工面に視認可能な目印を付与する工程、
前記目印に基づいて混入異物および塗工欠陥部位の除去を行う工程、
を有することを特徴とする疑似接着用紙の製造方法。
【0008】
(作用効果)
従来の透過型欠陥検出機や目視では発見困難な微細な糊粕、疑似接着剤や基紙と同色の異物を反射型欠陥検出装置によって検出できる。また、糊粕、異物の位置や塗工欠陥の位置に目印を付与して、それらの位置が迅速に判るようにし、しかもそれら糊粕等を除去するので、糊粕等の混入が確実にない疑似接着用紙を製造できる。また、塗工欠陥や糊粕等の混入があっても、それらを発見除去できることから、従来のエアナイフ方式よりも高速塗工が可能なロッド方式やブレード方式の塗工機による迅速な製造も可能となる。
【0009】
<請求項2記載尾発明>
前記疑似接着剤の固形分濃度を20〜50%、粘度を40〜800cPs、pHを8以上に調整し、
当該疑似接着材を、アプリケーション系をファウンテン方式かつ計量系をブレード方式またはロッド方式とした塗工方法により、塗工する請求項1記載の疑似接着用紙の製造方法。
【0010】
(作用効果)
前記疑似接着剤の固形分濃度を20〜50%、粘度を40〜800cPs、pHを8以上に調整することにより、前記疑似接着剤がブレード方式およびロッド方式の塗工に適したものとなる。そして、当該疑似接着剤をブレード方式またはロッド方式の塗工方法により塗工するので、高速に疑似接着用紙を製造することが可能となる。
【0011】
<請求項3記載の発明>
前記アプリケーション系における疑似接着剤の吐出口幅を調整し、前記疑似接着剤の塗工幅を紙幅と同じかあるいは紙幅よりも狭くして、疑似接着材を塗工する請求項2記載の疑似接着用紙の製造方法。
【0012】
(作用効果)
このようにすると、ブレードコーターやロッドコーターで使用するゴム製のバッキングロールの破損、磨耗が少なくなる。特に、塗工幅を狭くした場合には、基紙の側縁部に疑似接着剤の未塗工部分が形成され特に磨耗が少なくなる。
【0013】
<請求項4記載音発明>
基紙の少なくとも一方の面に、通常の状態では接着せず加圧によって剥離可能に疑似接着する疑似接着剤層を有する疑似接着用紙の製造装置であって、
前記基紙の表裏面の少なくとも一方の面に疑似接着剤を塗工する塗工手段と、前記疑似接着剤の塗工面に混入した異物および塗工欠陥を検出する反射型欠陥検出手段と、
検出された異物および塗工欠陥の位置が特定できるように、基紙または塗工面に視認可能な目印を付与する目印付与手段と、
前記目印に基づいて混入異物および塗工欠陥部位の除去を行う除去手段と、
を備えることを特徴とする疑似接着用紙の製造装置。
【0014】
(作用効果)
請求項1記載の発明と同様の作用効果を奏する。
【0015】
<請求項5記載の発明>
前記塗工手段のアプリケーション系がファウンテン方式で計量系がブレード方式またはロッド方式である請求項4記載の疑似接着用紙の製造装置。
【0016】
(作用効果)
請求項2記載の発明と同様の作用効果を奏する。
【0017】
<請求項6記載の発明>
前記アプリケーション系における疑似接着剤の吐出口の幅が、疑似接着剤の紙幅と同じかあるいは幅狭に形成されている請求項5記載の疑似接着用紙の製造装置。
【0018】
(作用効果)
請求項3記載の発明と同様の作用効果を奏する。
【0019】
【発明の実施の形態】
次いで、本発明の実施の形態を以下に詳述する。
本発明は、前記基紙の表裏面の少なくとも一方の面に疑似接着剤を塗工する工程、前記疑似接着剤の塗工面に混入した糊粕等の異物および塗工欠陥を反射型欠陥検出手段によって検出する工程、検出された異物および塗工欠陥の位置が特定できるように、基紙または塗工面に視認可能な目印を付与する工程、前記目印に基づいて混入異物および塗工欠陥部位の除去を行う工程、を有することを特徴とする。
【0020】
前記基紙は、特に限定されず、例えばセルロース繊維を主体とする上質紙や、各種合成紙等を挙げることができる。
【0021】
前記疑似接着剤としては、例えば、非剥離性接着剤(以下、接着基剤という)に、これに非親和性を示す充填剤を含有せしめて疑似接着力を付与した従来既知の疑似接着剤を用いることができる。
【0022】
前記接着基剤としては、ラテックス、具体的には天然ゴム、合成ゴム等の従来通常の接着基剤に使用されているものの中から任意に選択して使用することができるが、特に天然ゴムを無硫黄加硫し、メタアクリル酸メチルと混合した天然ゴムラテックス、天然ゴムにメタアクリル酸メチルをグラフト共重合させて得られた天然ゴムラテックス、アクリル変性ゴムラテックス、ゴムラテックスと保護コロイド系アクリル共重合エマルジョンとの混合物が、耐ブロッキング性、耐経時劣化等の点で好適である。
【0023】
また、接着基剤に添加する充填剤としては、例えば、クレー、一次または二次凝集体を形成しているカルサイト系沈降性炭酸カルシウム、二次凝集体を形成しているアラゴナイト系沈降性炭酸カルシウム、炭酸カルシウム、スチレンビーズ、シリカ、合成微粒子シリカ、アミノ表面改質シリカ、ワックス表面処理シリカ、球状シリカ、通常のカルシウムや、亜鉛、マグネシウム、アルミニウムもしくはチタン等の金属の酸化物、水酸化物、炭酸塩、珪酸塩、またはこれらの混合物等が挙げられる。
【0024】
疑似接着剤を塗工する塗工機は、従来と同様にエアナイフ方式の塗工機を用いてもよいが、好適には、従来のエアナイフ方式よりも高速塗工が可能な塗工機により塗工するのが望ましい。この高速塗工が可能な塗工機の具体例としては、アプリケーション系(塗布部あるいは塗布系とも言われる)にファウンテンロールを用いるファウンテン方式を採用し、計量系(メタリングともいう)にブレード方式またはロッド方式を採用するブレードコーター、ロッドコーターが挙げられる。かかる塗工機より塗工するのであれば、前記疑似接着剤は、前記疑似接着剤の固形分濃度を20〜50%、粘度を40〜800cPs、pHを8以上に調整するのが好適である。前記固形分濃度の調整については、接着基剤と充填剤の配合量により調整することができる。粘度の調整については、疑似接着剤の製造に用いられる従来既知の粘度調整剤により調整することができる。pHについては、疑似接着剤の製造に用いられる従来既知のpH調整剤により調整することができる。
【0025】
また、前記塗工機を用いるのであれば、好適には、前記アプリケーション系の疑似接着剤の吐出口の幅を、塗工する基紙の紙幅と同じかあるいは、幅狭にする。吐出口の幅の調整については、前記吐出口の両側縁を所定幅塞ぐことにより達成できる。また、初めから、吐出幅が所望の幅に調整された吐出口部を有するアプリケーション系を有する塗工機を用いてもよい。
【0026】
本発明においては、前記疑似接着剤を基紙に塗工した後に、当該塗工面に混入した異物、特に目視では発見困難な微細な糊粕、疑似接着剤や基紙と同色の異物の塗工欠陥を反射型欠陥検出装置によって検出する。検出は、紙の表面側と裏面側との双方の検出をするようにするのが望ましい。
【0027】
ここで、反射型欠陥検出装置は、光源とその反射光を受光して電気信号に変換する受光部と、その電気信号を解析するデータ処理部とを備える。すなわち、被検査物に光を当てその反射光をCCDカメラ等で受光して電気信号に変換し、その信号に基づいてあるいはその信号を解析、データ処理して欠陥等の検出をおこなう。通常は、反射光の強弱を電気信号の強弱に変化して欠陥等を検出する。また、反射型欠陥検出装置は、通常、CCDカメラからの電気信号をデジタル処理して、欠陥等が即時にわかる画像にしてモニタに映し出したり、その画像をプリントアウトしたりする機能をも備える。これら機能は別体のコンピュータを介して行うこともある。本発明においてもこの種の機能を備えた反射型欠陥検出装置を用いることができ、好適にはこの種の機能を利用して欠陥個所あるいは異物混入個所の画像をプリントアウトする。このようにしておくと、プリントアウトされた画像に基づき、反射型欠陥検出装置により検出された欠陥部分と実際の疑似接着用紙の欠陥部分との比較ができるようになる。特に好適な装置としては、オムロン社製の形式KP05YY2−Iの反射型欠陥検出装置が挙げられる。
【0028】
反射型欠陥検出装置の設置は、塗工工程の後段であって巻取り工程の前段であればいずれの位置に設けてもよいが、好適には、カレンダー後、ワインダー前に設置して、塗工装置から流れてくる疑似接着剤が塗工された疑似接着用紙原紙の塗工面を検査するようにする。
【0029】
反射型欠陥検出装置の設置方法および取り扱い方法については、反射型欠陥検出装置の通常の設置方法および取り扱い方法を採用することができる。本発明においては、紙幅全体の欠陥検出が行えるように紙の流れに対して検出部(光源およびCCDカメラ)を架橋するように設けるのが望ましい。また、図1に示されるように、塗工後の原紙1が搬送用ロール等のロールRに接する部位で検出を行うようにするのが望ましい。なお、図1中(A)は紙表面を検出する例であり、(B)は裏面を検出する例である。また、図1中の符号21は光源、22はスリット、23はCCDカメラをそれぞれ示す。このようにロールに接する部位で検出すると、紙のダブリによる検出ミスが防止される。
【0030】
このようにして前記反射型欠陥検出手段により、塗工欠陥や混入異物が検出された場合には、その位置が目視で直接的にまたは間接的に確認できるように目印を付与する。視認可能な目印はどのようなものでもよく、例えば、インクで着色したりする。
【0031】
目印を付与する位置としては、欠陥個所、異物混入個所に直接、あるいは、それらの欠陥個所等に対応する基紙の側縁部(例えば、欠陥個所等から、紙の流れ方向に対して垂直方向に向かって、延長線上に位置する紙の側縁部)とすることができる。具体例としは、基紙の幅よりも塗工幅を狭くしてある場合には、基紙の縁部に形成される疑似接着剤の未塗工部分にインクで着色して目印を付与できる。また、疑似接着剤層が先糊方式のものであり、しかも、目印付与時に乾燥されている場合には、欠陥個所等に直接的にインクで着色して目印を付与できる。特に好適な例は、紙の側縁部分(エッジともいう)にインクで着色することである。
【0032】
目印の付与は、紙の走行を止めずに行うのが望ましく、好適には、前記欠陥検出装置と連動するマーキング装置(マーカーともいう)等により行う。上記の連動は、前記欠陥検出装置とマーキング装置とを連動させる機能を有するコンピュータ等により行うこともできる。具体例としては、図2に示されるように、反射型欠陥検出装置2(より具体的には反射型欠陥検出装置のデータ処理部24)とマーキング装置30とを接続し、前記反射型欠陥検出装置2からの命令によって前記マーキング装置30を作動させ、マーキング装置30が欠陥部分あるいは、図中に点線で示されるように欠陥個所Dに対応する基紙の側縁部分(エッジ)にインクで着色して目印Mを付与する。図示例では、紙の側縁部分に未塗工部分を設けてかかる未塗工部分12に目印を付与している。なお、本発明においてはプリンタを使用せずに、欠陥検出装置の表示する解析画像に基づいて、手動でインクを付与してもよい。
【0033】
かかる目印の付与がなされた疑似接着用紙は、巻取り工程の直前、巻取り工程で巻き取られてロール状となっている疑似接着用紙原紙をスリッターワンダー等により加工する際に、前記目印に基づいて異物混入個所を確認してその部位を除去する。なお、本発明は、各工程が連続している必要はなく、目印を付与した後に他の工程を経て巻取り工程に移行することもできる。
【0034】
<実施例>
本発明にかかる疑似接着用紙の製造例(実施例1〜6)と本発明とは異なる疑似接着用紙の製造例(比較例1)と従来の疑似接着剤の製造例(従来例)とについて、循環による物性変化、塗工欠陥の発生具合、糊粕の発生具合、印刷適正とについて比較検討した。実施例および比較例にかかる疑似接着用紙は、米坪100g/mの上質紙の一方の面の全面に疑似接着剤を塗工量8g/mで塗工した後、温度23℃、湿度50%の状況下で30分間調整して疑似接着剤層を設けて作成した。なお、各実施例および各比較例の詳細については次記のとおりである。
【0035】
(実施例1)天然ゴムラッテックス30重量部に対して、シリカ25重量部と生澱粉25重量部とからなる分散液と、合成ラテックス5重量部と、水溶性バインダー4重量部と、を含有せしめ、さらにpH調製剤および粘度調整剤を添加して、pH9.5、粘度800cPs、固形分濃度35%の疑似接着剤とし、この疑似接着剤をブレードコーターにて、塗工速度300m/分で基紙に塗工した。
【0036】
(実施例2)天然ゴムラッテックス30重量部に対して、シリカ25重量部と生澱粉25重量部とからなる分散液と、合成ラテックス5重量部と、水溶性バインダー4重量部と、を含有せしめ、さらにpH調製剤および粘度調整剤を添加して、pH9.5、粘度500cPs、固形分濃度50%の疑似接着剤とし、この疑似接着剤をブレードコーターにて、塗工速度300m/分で基紙に塗工した。
【0037】
(実施例3)天然ゴムラッテックス30重量部に対して、シリカ25重量部と生澱粉25重量部とからなる分散液と、合成ラテックス5重量部と、水溶性バインダー4重量部と、を含有せしめ、さらにpH調製剤および粘度調整剤を添加して、pH9.5、粘度500cPs、固形分濃度35%の疑似接着剤とし、この疑似接着剤をブレードコーターにて、塗工速度300m/分で基紙に塗工した。
【0038】
(実施例4)天然ゴムラッテックス30重量部に対して、シリカ25重量部と生澱粉25重量部とからなる分散液と、合成ラテックス5重量部と、水溶性バインダー4重量部と、を含有せしめ、さらにpH調製剤および粘度調整剤を添加して、pH9.5、粘度500cPs、固形分濃度35%の疑似接着剤とし、この疑似接着剤をロッドコーターにて、塗工速度300m/分で基紙に塗工した。
【0039】
(実施例5)天然ゴムラッテックス30重量部に対して、シリカ25重量部と生澱粉25重量部とからなる分散液と、合成ラテックス5重量部と、水溶性バインダー4重量部と、を含有せしめ、さらにpH調製剤および粘度調整剤を添加して、pH8.2、粘度500cPs、固形分濃度35%の疑似接着剤とし、この疑似接着剤をブレードコーターにて、塗工速度300m/分で基紙に塗工した。
【0040】
(実施例6)天然ゴムラッテックス30重量部に対して、シリカ25重量部と生澱粉25重量部とからなる分散液と、合成ラテックス5重量部と、水溶性バインダー4重量部と、を含有せしめ、さらにpH調製剤および粘度調整剤を添加して、pH9.5、粘度50cPs、固形分濃度35%の疑似接着剤とし、この疑似接着剤をブレードコーターにて、塗工速度50m/分で基紙に塗工した。
【0041】
(比較例1)天然ゴムラッテックス30重量部に対して、シリカ25重量部と生澱粉25重量部とからなる分散液と、合成ラテックス5重量部と、水溶性バインダー4重量部と、を含有せしめ、さらにpH調製剤および粘度調整剤を添加して、pH7.5、粘度500cPs、固形分濃度35%の疑似接着剤とし、この疑似接着剤をブレードコーターにて、塗工速度300m/分で基紙に塗工した。
【0042】
(従来例)天然ゴムラッテックス30重量部に対して、シリカ25重量部と生澱粉25重量部とからなる分散液と、合成ラテックス5重量部と、水溶性バインダー4重量部と、を含有せしめ、さらにpH調製剤および粘度調整剤を添加して、pH9.5、粘度150cPs、固形分濃度15%の疑似接着剤とし、この疑似接着剤をエアナイフコーターにて、塗工速度140m/分で基紙に塗工した。
【0043】
検討項目の詳細は次記のとおりであり、結果については表1に示す。
[循環による物性変化]疑似接着剤の比重および物性変化、劣化があるか否かを評価した。表中の記号については、○:劣化なし、△:やや劣化あり、×:劣化あり、をそれぞれ示す。
[塗工欠陥の発生具合]ストリーク、スクラッチ等の塗工欠陥が発生具合を目視にて確認した。表中の記号については、○:欠陥発生なし、△:やや欠陥あり、×:欠陥発生が多い、をそれぞれ示す。
[糊粕の発生具合]コーターヘッド周りおよびロールへの糊粕の付着具合を黙示にて確認した。表中の記号については、○:糊粕の付着なし、△:糊粕がやや付着した、×:糊粕が多量に付着した、をそれぞれ示す。
[印刷適正]RIテスターにてインクの着肉性を確認した。表中の記号については、○:インクの着肉性が大変よい、△:インクの着肉性がよい、×:インクの着肉性がやや悪い、をそれぞれ示す。
【0044】
【表1】

Figure 2004148534
【0045】
表1から見てとれるように、本発明の実施例は、各評価が△〜○の評価であるのに対し、比較例については△〜×の評価である結果となった。
【0046】
なお、塗工欠陥の発生具合および糊粕の発生具合の評価において、△および×の評価であっても、反射型欠陥検出器でそれら検出して除去することは可能である。ただし、×の評価となるほどに糊粕等が多いと、製品の歩留まりが、△および○と比較して悪化する。
【0047】
【発明の効果】
以上詳述のとおり、本発明によれば、疑似接着用紙の製造方法において、塗工面に付着した糊粕などの白色異物等を効果的に検出・除去することが可能となり、ブレード方式、ロッド方式といったエアナイフ方式よりも高速塗工が可能な塗工方式による塗工が可能となり、疑似接着用紙の生産性および作業性が向上する。
【図面の簡単な説明】
【図1】反射型欠陥検出装置の検出部の設置例を示す図である。
【図2】目印付与手段一例を示す図である。
【符号の説明】
1…疑似接着剤塗工後の原紙、11…塗工部分、12…未塗工部分、2…反射型欠陥検出装置、21…光源、21a…反射光、22…スリット,23…CCDカメラ、24…データ処理部、30…プリンタ、D…欠陥部分、M…目印、R…搬送用ロール。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for producing a pseudo-adhesive sheet having a function of temporarily adhering but easily peeling off when necessary. More specifically, at least one surface of the base paper does not adhere in a normal state and exhibits adhesiveness by being given a predetermined condition (for example, by applying pressure), and can be peeled off after adhesion. A pseudo adhesive sheet provided with a pseudo adhesive layer, a folding pseudo adhesive sheet, a superimposed pseudo adhesive sheet, an information concealing sheet having other confidential properties, a confidential postcard, a method of manufacturing a pseudo adhesive paper suitable for a confidential envelope, and the like. It relates to a manufacturing device.
[0002]
[Prior art]
Postcard systems have been widely used in which various information such as personal information is concealed, mailed, and a recipient reads the concealed information by peeling off the pseudo-adhesive part. The postcard system is often used when the company communicates confidential information to employees or banks or credit companies to customers, preventing leakage of confidentiality information, convenience of information communication, Ease (peelability) is important.
[0003]
In such a postcard system, a pseudo-adhesive in which a filler or the like is contained in an adhesive base such as natural rubber latex is applied to a base paper such as a high-quality paper and temporarily adhered to the base paper. Pseudo-adhesive paper provided with a pseudo-adhesive layer to be peeled off is used.
[0004]
Since the peelability is important for the pseudo-adhesive paper as described above, it is required that the pseudo-adhesive layer be free from foreign matter or coating defects which may cause breakage at the time of peeling. Therefore, when applying the pseudo-adhesive, use a blade-type or rod-type coating machine, which has a high coating speed but a high risk of generating coating defects and mixing the coating liquid residue on the coating surface. In general, an air knife type coating machine which is less likely to be used is used. Usually, a transmission type defect detector or a streak detector for detecting black spot foreign substances such as dirt and insects is used as the defect detector.
[Patent Document 1]
JP-A-08-278262
[Patent Document 2]
JP-A-11-0335204
[0005]
[Problems to be solved by the invention]
However, the air knife type coating machine has a drawback in that a change in the physical properties of the pseudo adhesive in the coater head circulation line due to air entrapment is large. Further, the air knife type coating machine has a very low coating speed, and is inferior to the blade type or rod type coating machine in terms of productivity and workability.
[0006]
Therefore, a main problem of the present invention is to make it possible to effectively detect and remove white foreign substances such as glue residue attached to a coating surface in a method of manufacturing a pseudo-adhesive paper, and to use a blade method, a rod method, and the like. An object of the present invention is to make it possible to perform coating by a coating method capable of high-speed coating compared to the air knife method, and to improve the productivity and workability of the pseudo adhesive paper.
[0007]
[Means for Solving the Problems]
The present invention which has solved the above-mentioned problems and the operation and effect thereof are as follows.
<Invention according to claim 1>
A method for producing a pseudo-adhesive paper having a pseudo-adhesive layer that is pseudo-adhesive releasably by pressure without adhering to at least one surface of a base paper in a normal state,
A step of applying a pseudo adhesive on at least one of the front and back surfaces of the base paper,
A step of detecting foreign matter and coating defects mixed in the coating surface of the pseudo-adhesive by a reflective defect detection unit,
A step of providing a visible mark on the base paper or the coated surface so that the position of the detected foreign matter and the coating defect can be specified,
A step of removing contaminating foreign matter and a coating defect site based on the mark;
A method for producing a pseudo-adhesive paper, comprising:
[0008]
(Effect)
A conventional transmission-type defect detector or a fine glue residue, a pseudo-adhesive, or a foreign substance having the same color as that of the base paper, which is difficult to detect visually, can be detected by a reflection-type defect detector. In addition, a mark is given to the position of the glue residue, the foreign matter and the position of the coating defect so that the position can be quickly identified, and since the glue residue and the like are removed, there is no possibility that the glue residue and the like are mixed. Pseudo adhesive paper can be manufactured. In addition, even if there are coating defects or glue residue, they can be found and removed, so rapid production with a rod-type or blade-type coating machine that can perform higher-speed coating than the conventional air knife method is possible. It becomes.
[0009]
<Claim 2 of the invention>
Adjusting the solid content concentration of the pseudo adhesive to 20 to 50%, the viscosity to 40 to 800 cPs, and the pH to 8 or more,
The method for producing a pseudo-adhesive paper according to claim 1, wherein the pseudo-adhesive is applied by a coating method using an application system as a fountain system and a measuring system as a blade system or a rod system.
[0010]
(Effect)
By adjusting the solid content concentration of the pseudo-adhesive to 20 to 50%, the viscosity to 40 to 800 cPs, and the pH to 8 or more, the pseudo-adhesive becomes suitable for blade-type and rod-type coating. And since the said pseudo adhesive is applied by the coating method of a blade system or a rod system, it becomes possible to manufacture pseudo adhesion paper at high speed.
[0011]
<Invention of Claim 3>
3. The pseudo-adhesive according to claim 2, wherein a pseudo-adhesive is applied by adjusting a width of the pseudo-adhesive discharge port in the application system, and making a coating width of the pseudo-adhesive equal to or smaller than a paper width. Paper manufacturing method.
[0012]
(Effect)
In this way, the rubber backing roll used in the blade coater or the rod coater is less likely to be damaged or worn. In particular, when the coating width is reduced, an uncoated portion of the pseudo-adhesive is formed at the side edge of the base paper, and wear is particularly reduced.
[0013]
<Sound invention according to claim 4>
At least one surface of the base paper, a pseudo-adhesive paper manufacturing apparatus having a pseudo-adhesive layer that does not adhere in a normal state but pseudo-adhesively releasable by pressure,
Coating means for applying a pseudo-adhesive on at least one of the front and back surfaces of the base paper, reflection type defect detecting means for detecting foreign matter and coating defects mixed on the coated surface of the pseudo-adhesive,
Marking means for providing a visible mark on the base paper or the coated surface so that the position of the detected foreign matter and the coating defect can be specified,
Removing means for removing the contaminant foreign matter and the coating defect site based on the mark,
An apparatus for producing pseudo-adhesive paper, comprising:
[0014]
(Effect)
The same operation and effect as the first aspect of the invention can be obtained.
[0015]
<Invention according to claim 5>
5. The pseudo adhesive paper manufacturing apparatus according to claim 4, wherein an application system of the coating unit is a fountain system and a measuring system is a blade system or a rod system.
[0016]
(Effect)
The same operation and effect as those of the second aspect of the invention can be obtained.
[0017]
<Invention of claim 6>
The pseudo adhesive sheet manufacturing apparatus according to claim 5, wherein the width of the pseudo adhesive discharge port in the application system is formed to be equal to or smaller than the paper width of the pseudo adhesive.
[0018]
(Effect)
The same operation and effect as the third aspect of the invention can be obtained.
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, embodiments of the present invention will be described in detail below.
The present invention provides a step of applying a pseudo-adhesive to at least one of the front and back surfaces of the base paper, and a reflection type defect detecting means for detecting foreign matter such as glue residue mixed in the pseudo-adhesive coated surface and coating defects and coating defects. A step of providing a visible mark on the base paper or the coated surface so that the position of the detected foreign matter and the coating defect can be specified, and removing the mixed foreign matter and the coating defect portion based on the mark. Performing the step of:
[0020]
The base paper is not particularly limited, and examples thereof include high-quality paper mainly composed of cellulose fibers and various synthetic papers.
[0021]
As the pseudo-adhesive, for example, a conventionally known pseudo-adhesive obtained by adding a non-affinity filler to a non-peelable adhesive (hereinafter, referred to as an adhesive base) to impart pseudo-adhesive strength is used. Can be used.
[0022]
As the adhesive base, latex, specifically, natural rubber, can be arbitrarily selected from those used in conventional adhesive bases such as synthetic rubber, and particularly, natural rubber is used. Sulfur-free vulcanization, natural rubber latex mixed with methyl methacrylate, natural rubber latex obtained by graft copolymerization of methyl methacrylate onto natural rubber, acrylic modified rubber latex, rubber latex and protective colloidal acrylic A mixture with a polymerization emulsion is preferable in terms of blocking resistance, deterioration with time, and the like.
[0023]
As the filler to be added to the adhesive base, for example, clay, calcite-based precipitated calcium carbonate forming a primary or secondary aggregate, aragonite-based precipitated carbonate forming a secondary aggregate, Calcium, calcium carbonate, styrene beads, silica, synthetic fine particle silica, amino surface modified silica, silica treated with wax, spherical silica, ordinary calcium, oxides and hydroxides of metals such as zinc, magnesium, aluminum or titanium , Carbonates, silicates, or mixtures thereof.
[0024]
As a coating machine for applying the pseudo-adhesive, an air knife type coating machine may be used as in the past, but preferably, a coating machine capable of higher-speed coating than the conventional air knife system is used. It is desirable to work. As a specific example of a coating machine capable of high-speed coating, a fountain system using a fountain roll in an application system (also referred to as a coating unit or a coating system) is adopted, and a blade system or a metering system (also referred to as a metering) is used. A blade coater and a rod coater that employ a rod system are exemplified. If the coating is performed by such a coating machine, the pseudo-adhesive is preferably adjusted to have a solid content concentration of 20 to 50%, a viscosity of 40 to 800 cPs, and a pH of 8 or more. . The solid content concentration can be adjusted by adjusting the amount of the adhesive base and the filler. The viscosity can be adjusted by a conventionally known viscosity adjuster used in the production of the pseudo adhesive. The pH can be adjusted by a conventionally known pH adjuster used in the production of the pseudo adhesive.
[0025]
If the coating machine is used, it is preferable that the width of the discharge port of the pseudo adhesive of the application system is equal to or smaller than the width of the base paper to be coated. The width of the discharge port can be adjusted by closing both side edges of the discharge port by a predetermined width. Further, from the beginning, a coating machine having an application system having a discharge port portion whose discharge width is adjusted to a desired width may be used.
[0026]
In the present invention, after applying the pseudo-adhesive to the base paper, coating of foreign matter mixed into the coated surface, particularly fine glue residue that is difficult to find visually, foreign matter of the same color as the pseudo-adhesive or the base paper Defects are detected by a reflection type defect detection device. It is desirable to detect both the front side and the back side of the paper.
[0027]
Here, the reflection type defect detection device includes a light source, a light receiving unit that receives the reflected light and converts the light into an electric signal, and a data processing unit that analyzes the electric signal. That is, light is applied to the object to be inspected, and the reflected light is received by a CCD camera or the like, converted into an electric signal, and based on the signal or the signal is analyzed and data processed to detect a defect or the like. Usually, a defect or the like is detected by changing the intensity of the reflected light into the intensity of an electric signal. In addition, the reflection type defect detection device generally has a function of digitally processing an electric signal from a CCD camera to display an image on which a defect or the like can be immediately recognized, to display the image on a monitor, or to print out the image. These functions may be performed via a separate computer. Also in the present invention, a reflection type defect detection device having such a function can be used, and preferably, an image of a defect portion or a foreign material mixed portion is printed out by using such a function. By doing so, it is possible to compare the defective portion detected by the reflection type defect detection device with the actual defective portion of the pseudo adhesive paper based on the printed image. A particularly suitable apparatus is a reflection type defect detection apparatus of the type KP05YY2-I manufactured by OMRON Corporation.
[0028]
The reflection type defect detection device may be installed at any position after the coating process and before the winding process.However, it is preferable to install the reflection type defect detection device after the calender and before the winder. The coated surface of the pseudo adhesive paper base paper coated with the pseudo adhesive flowing from the processing device is inspected.
[0029]
As for the method of installing and handling the reflection type defect detection device, the usual method of installation and handling of the reflection type defect detection device can be adopted. In the present invention, it is desirable to provide a detection unit (light source and CCD camera) so as to bridge the flow of the paper so as to detect a defect over the entire width of the paper. Further, as shown in FIG. 1, it is desirable that the detection is performed at a portion where the coated base paper 1 is in contact with a roll R such as a transport roll. 1A shows an example in which the front side of the paper is detected, and FIG. 1B shows an example in which the back side is detected. 1, reference numeral 21 denotes a light source, 22 denotes a slit, and 23 denotes a CCD camera. When the detection is performed at the portion in contact with the roll as described above, a detection error due to double of paper is prevented.
[0030]
When a coating defect or a foreign substance is detected by the reflection type defect detection means in this way, a mark is provided so that the position can be visually or directly confirmed indirectly. Any visible mark may be used, for example, colored with ink.
[0031]
The position where the mark is applied may be directly at the defect location or the foreign matter entry location, or at a side edge of the base paper corresponding to the defect location or the like (for example, in a direction perpendicular to the paper flow direction from the defect location or the like). , The side edge of the paper positioned on the extension). As a specific example, when the coating width is narrower than the width of the base paper, a mark can be provided by coloring the uncoated portion of the pseudo adhesive formed on the edge of the base paper with ink. . In addition, when the pseudo adhesive layer is of a pre-glue type and is dried at the time of applying the mark, the mark can be provided by directly coloring the defective portion with ink. A particularly preferred example is to color the side edges (also called edges) of the paper with ink.
[0032]
It is preferable that the marking is performed without stopping the running of the paper, and is preferably performed by a marking device (also referred to as a marker) or the like that works in conjunction with the defect detection device. The above-described interlocking can be performed by a computer or the like having a function of interlocking the defect detection device and the marking device. As a specific example, as shown in FIG. 2, the reflection type defect detection device 2 (more specifically, the data processing unit 24 of the reflection type defect detection device) and the marking device 30 are connected, and the reflection type defect detection is performed. The marking device 30 is actuated according to a command from the device 2, and the marking device 30 is colored with ink on a defective portion or a side portion (edge) of the base paper corresponding to the defective portion D as indicated by a dotted line in the drawing. To give a mark M. In the illustrated example, an uncoated portion is provided at a side edge portion of the paper, and a mark is given to the uncoated portion 12. In the present invention, ink may be manually applied based on an analysis image displayed by the defect detection device without using a printer.
[0033]
Immediately before the winding step, the pseudo-bonded paper to which the mark is applied is processed based on the mark when the pseudo-bonded paper base paper wound up in the winding step into a roll is processed by a slitter wonder or the like. After confirming the place where foreign matter has entered, the part is removed. In the present invention, it is not necessary for each step to be continuous, and it is also possible to shift to the winding step via another step after the mark is provided.
[0034]
<Example>
Regarding a production example of a pseudo-adhesive paper according to the present invention (Examples 1 to 6), a production example of a pseudo-adhesive paper different from the present invention (Comparative Example 1), and a production example of a conventional pseudo-adhesive (conventional example), Changes in physical properties due to circulation, the degree of occurrence of coating defects, the degree of generation of glue residue, and printing suitability were compared and examined. The pseudo-adhesive paper according to the examples and the comparative examples was prepared by applying a pseudo-adhesive to the entire surface of one side of a high-quality paper of 100 g / m 2 in rice at a coating amount of 8 g / m 2 , and then applying a temperature of 23 ° C. and a humidity of 23 ° C. Adjustment was performed for 30 minutes under a condition of 50% to provide a pseudo adhesive layer. The details of each example and each comparative example are as follows.
[0035]
(Example 1) Based on 30 parts by weight of natural rubber latex, a dispersion composed of 25 parts by weight of silica and 25 parts by weight of raw starch, 5 parts by weight of synthetic latex, and 4 parts by weight of a water-soluble binder were contained. Then, a pH adjuster and a viscosity modifier were further added to obtain a pseudo adhesive having a pH of 9.5, a viscosity of 800 cPs, and a solid content concentration of 35%. The pseudo adhesive was coated with a blade coater at a coating speed of 300 m / min. Coated on base paper.
[0036]
(Example 2) Based on 30 parts by weight of natural rubber latex, a dispersion composed of 25 parts by weight of silica and 25 parts by weight of raw starch, 5 parts by weight of synthetic latex, and 4 parts by weight of a water-soluble binder were contained. Then, a pH adjuster and a viscosity modifier were further added to obtain a pseudo-adhesive having a pH of 9.5, a viscosity of 500 cPs, and a solid content of 50%, and the pseudo-adhesive was coated with a blade coater at a coating speed of 300 m / min. Coated on base paper.
[0037]
(Example 3) Based on 30 parts by weight of natural rubber latex, a dispersion composed of 25 parts by weight of silica and 25 parts by weight of raw starch, 5 parts by weight of synthetic latex, and 4 parts by weight of a water-soluble binder were contained. Then, a pH adjuster and a viscosity modifier were further added to obtain a pseudo-adhesive having a pH of 9.5, a viscosity of 500 cPs, and a solid content of 35%, and the pseudo-adhesive was coated with a blade coater at a coating speed of 300 m / min. Coated on base paper.
[0038]
Example 4 30 parts by weight of natural rubber latex contains 25 parts by weight of silica and 25 parts by weight of raw starch, 5 parts by weight of synthetic latex, and 4 parts by weight of a water-soluble binder. Then, a pH adjuster and a viscosity modifier were further added to obtain a pseudo-adhesive having a pH of 9.5, a viscosity of 500 cPs and a solid content of 35%, and the pseudo-adhesive was coated with a rod coater at a coating speed of 300 m / min. Coated on base paper.
[0039]
(Example 5) Based on 30 parts by weight of natural rubber latex, a dispersion composed of 25 parts by weight of silica and 25 parts by weight of raw starch, 5 parts by weight of synthetic latex, and 4 parts by weight of a water-soluble binder were contained. Then, a pH adjuster and a viscosity modifier were further added to obtain a pseudo adhesive having a pH of 8.2, a viscosity of 500 cPs, and a solid concentration of 35%. The pseudo adhesive was coated with a blade coater at a coating speed of 300 m / min. Coated on base paper.
[0040]
(Example 6) A dispersion liquid composed of 25 parts by weight of silica and 25 parts by weight of raw starch, 30 parts by weight of natural rubber latex, 5 parts by weight of synthetic latex, and 4 parts by weight of a water-soluble binder were contained. Then, a pH adjuster and a viscosity modifier were further added to obtain a pseudo-adhesive having a pH of 9.5, a viscosity of 50 cPs, and a solid content of 35%. The pseudo-adhesive was coated with a blade coater at a coating speed of 50 m / min. Coated on base paper.
[0041]
Comparative Example 1 Based on 30 parts by weight of natural rubber latex, a dispersion composed of 25 parts by weight of silica and 25 parts by weight of raw starch, 5 parts by weight of synthetic latex, and 4 parts by weight of a water-soluble binder. Then, a pH adjuster and a viscosity modifier were further added to obtain a pseudo adhesive having a pH of 7.5, a viscosity of 500 cPs, and a solid content of 35%, and the pseudo adhesive was coated with a blade coater at a coating speed of 300 m / min. Coated on base paper.
[0042]
(Conventional example) A dispersion liquid consisting of 25 parts by weight of silica and 25 parts by weight of raw starch, 5 parts by weight of synthetic latex, and 4 parts by weight of a water-soluble binder are contained in 30 parts by weight of natural rubber latex. Further, a pH adjuster and a viscosity adjuster were added to obtain a pseudo-adhesive having a pH of 9.5, a viscosity of 150 cPs, and a solid content of 15%, and the pseudo-adhesive was applied with an air knife coater at a coating speed of 140 m / min. Coated on paper.
[0043]
Details of the examination items are as follows, and the results are shown in Table 1.
[Changes in physical properties due to circulation] The specific gravity of the pseudo-adhesives and the change in physical properties and whether there was any deterioration were evaluated. The symbols in the table indicate ○: no deterioration, Δ: slightly deteriorated, ×: deteriorated, respectively.
[Degree of occurrence of coating defects] The degree of occurrence of coating defects such as streaks and scratches was visually confirmed. The symbols in the table indicate ○: no defect, Δ: slightly defective, ×: many defects.
[Condition of size residue] The condition of the size residue attached around the coater head and the roll was implicitly confirmed. The symbols in the table indicate that ○: no glue cake adhered, Δ: slight glue cake attached, ×: large amount of glue cake attached.
[Printability] The ink inking property was confirmed with an RI tester. The symbols in the table indicate that ○: ink is very good, Δ: ink is good, and ×: ink is slightly bad.
[0044]
[Table 1]
Figure 2004148534
[0045]
As can be seen from Table 1, in the examples of the present invention, each evaluation was evaluated as △ to ○, while the comparative example was evaluated as △ to ×.
[0046]
It should be noted that in the evaluation of the degree of occurrence of coating defects and the degree of generation of glue residue, it is possible to detect and remove them with a reflection type defect detector even if the evaluation is Δ and ×. However, when the amount of glue residue or the like is large enough to be evaluated as “X”, the yield of the product is deteriorated as compared with Δ and ○.
[0047]
【The invention's effect】
As described in detail above, according to the present invention, in a method for producing a pseudo-adhesive paper, it is possible to effectively detect and remove white foreign matter such as glue residue adhered to a coating surface, using a blade system, a rod system It is possible to perform coating by a coating method capable of performing higher-speed coating than the air knife method, thereby improving the productivity and workability of the pseudo adhesive paper.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating an example of installation of a detection unit of a reflection type defect detection device.
FIG. 2 is a diagram illustrating an example of a mark providing unit.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Base paper after pseudo adhesive application, 11 ... Coated part, 12 ... Uncoated part, 2 ... Reflection type defect detection apparatus, 21 ... Light source, 21a ... Reflected light, 22 ... Slit, 23 ... CCD camera, 24: data processing unit, 30: printer, D: defective part, M: mark, R: transport roll.

Claims (6)

基紙の少なくとも一方の面に、通常の状態では接着せず加圧によって剥離可能に疑似接着する疑似接着剤層を有する疑似接着用紙の製造方法であって、
前記基紙の表裏面の少なくとも一方の面に疑似接着剤を塗工する工程、
前記疑似接着剤の塗工面に混入した異物および塗工欠陥を反射型欠陥検出手段によって検出する工程、
検出された異物および塗工欠陥の位置が特定できるように、基紙または塗工面に視認可能な目印を付与する工程、
前記目印に基づいて混入異物および塗工欠陥部位の除去を行う工程、
を有することを特徴とする疑似接着用紙の製造方法。
A method for producing a pseudo-adhesive paper having a pseudo-adhesive layer that is pseudo-adhesive releasably by pressure without adhering to at least one surface of a base paper in a normal state,
A step of applying a pseudo adhesive on at least one of the front and back surfaces of the base paper,
A step of detecting foreign matter and coating defects mixed in the coating surface of the pseudo-adhesive by a reflective defect detection unit,
A step of providing a visible mark on the base paper or the coated surface so that the position of the detected foreign matter and the coating defect can be specified,
A step of removing contaminating foreign matter and a coating defect site based on the mark;
A method for producing a pseudo-adhesive paper, comprising:
前記疑似接着剤の固形分濃度を20〜50%、粘度を40〜800cPs、pHを8以上に調整し、
当該疑似接着材を、アプリケーション系をファウンテン方式かつ計量系をブレード方式またはロッド方式とした塗工方法により、塗工する請求項1記載の疑似接着用紙の製造方法。
Adjusting the solid content concentration of the pseudo adhesive to 20 to 50%, the viscosity to 40 to 800 cPs, and the pH to 8 or more,
The method for producing a pseudo-adhesive paper according to claim 1, wherein the pseudo-adhesive is applied by a coating method using an application system as a fountain system and a measuring system as a blade system or a rod system.
前記アプリケーション系における疑似接着剤の吐出口幅を調整し、前記疑似接着剤の塗工幅を紙幅と同じかあるいは紙幅よりも狭くして、疑似接着材を塗工する請求項2記載の疑似接着用紙の製造方法。3. The pseudo-adhesive according to claim 2, wherein the pseudo-adhesive is discharged by adjusting the width of the discharge port of the pseudo-adhesive in the application system so that the application width of the pseudo-adhesive is equal to or smaller than the paper width. Paper manufacturing method. 基紙の少なくとも一方の面に、通常の状態では接着せず加圧によって剥離可能に疑似接着する疑似接着剤層を有する疑似接着用紙の製造装置であって、
前記基紙の表裏面の少なくとも一方の面に疑似接着剤を塗工する塗工手段と、前記疑似接着剤の塗工面に混入した異物および塗工欠陥を検出する反射型欠陥検出手段と、
検出された異物および塗工欠陥の位置が特定できるように、基紙または塗工面に視認可能な目印を付与する目印付与手段と、
前記目印に基づいて混入異物および塗工欠陥部位の除去を行う除去手段と、
を備えることを特徴とする疑似接着用紙の製造装置。
At least one surface of the base paper, a pseudo-adhesive paper manufacturing apparatus having a pseudo-adhesive layer that does not adhere in a normal state but pseudo-adhesively releasable by pressure,
Coating means for applying a pseudo-adhesive on at least one of the front and back surfaces of the base paper, reflection type defect detecting means for detecting foreign matter and coating defects mixed on the coated surface of the pseudo-adhesive,
Marking means for providing a visible mark on the base paper or the coated surface so that the position of the detected foreign matter and the coating defect can be specified,
Removing means for removing the contaminant foreign matter and the coating defect site based on the mark,
An apparatus for producing pseudo-adhesive paper, comprising:
前記塗工手段のアプリケーション系がファウンテン方式で計量系がブレード方式またはロッド方式である請求項4記載の疑似接着用紙の製造装置。5. The pseudo adhesive paper manufacturing apparatus according to claim 4, wherein an application system of the coating unit is a fountain system and a measuring system is a blade system or a rod system. 前記アプリケーション系における疑似接着剤の吐出口の幅が、疑似接着剤の紙幅と同じかあるいは幅狭に形成されている請求項5記載の疑似接着用紙の製造装置。The pseudo adhesive paper manufacturing apparatus according to claim 5, wherein the width of the pseudo adhesive discharge port in the application system is formed to be equal to or smaller than the paper width of the pseudo adhesive.
JP2002313252A 2002-10-28 2002-10-28 Method and equipment for manufacturing false adhesion paper Withdrawn JP2004148534A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013160581A (en) * 2012-02-03 2013-08-19 Yokogawa Electric Corp Coating dimension measuring device
US8823819B2 (en) 2010-09-30 2014-09-02 Yokogawa Electric Corporation Apparatus for measuring position and shape of pattern formed on sheet
US20220016669A1 (en) * 2016-07-08 2022-01-20 Macdonald, Dettwiler And Associates Inc. System and Method for Automated Artificial Vision Guided Dispensing Viscous Fluids for Caulking and Sealing Operations

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8823819B2 (en) 2010-09-30 2014-09-02 Yokogawa Electric Corporation Apparatus for measuring position and shape of pattern formed on sheet
JP2013160581A (en) * 2012-02-03 2013-08-19 Yokogawa Electric Corp Coating dimension measuring device
US8804138B2 (en) 2012-02-03 2014-08-12 Yokogawa Electric Corporation Coating dimension measuring apparatus
US20220016669A1 (en) * 2016-07-08 2022-01-20 Macdonald, Dettwiler And Associates Inc. System and Method for Automated Artificial Vision Guided Dispensing Viscous Fluids for Caulking and Sealing Operations
US11969751B2 (en) * 2016-07-08 2024-04-30 Macdonald, Dettwiler And Associates Inc. System and method for automated artificial vision guided dispensing viscous fluids for caulking and sealing operations

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