JP2684881B2 - Manufacturing method of coated paper for aluminum foil bonding - Google Patents
Manufacturing method of coated paper for aluminum foil bondingInfo
- Publication number
- JP2684881B2 JP2684881B2 JP19381391A JP19381391A JP2684881B2 JP 2684881 B2 JP2684881 B2 JP 2684881B2 JP 19381391 A JP19381391 A JP 19381391A JP 19381391 A JP19381391 A JP 19381391A JP 2684881 B2 JP2684881 B2 JP 2684881B2
- Authority
- JP
- Japan
- Prior art keywords
- aluminum foil
- coated
- paper
- coated paper
- base paper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Laminated Bodies (AREA)
- Paper (AREA)
- Photoreceptors In Electrophotography (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、印刷用塗工紙の片面に
アルミ箔を貼り合わせてアルミ箔貼合塗工紙とするため
のアルミ箔貼合用塗工紙の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a coated paper for laminating aluminum foil, which comprises laminating an aluminum foil on one surface of a coated paper for printing to obtain an aluminum foil-coated coated paper.
【０００２】[0002]
【従来の技術】原紙の片面（Ａ面）に従来から公知の印
刷用塗工紙用の塗工液を塗布し、これと反対の原紙面
（Ｂ面）にアルミ箔を貼合した、いわゆるアルミ箔貼合
塗工紙は、塗工液の塗工面側に印刷を施したのちアルミ
箔面を通常は内側にして製函し、食品等の水洩れ、油洩
れのない容器を作るのに用いられる。また、アルミ箔面
の光沢性を利用したカタログやパンフレット類の作成な
どにも用いられる。さらに、アルミ箔を貼合した塗工紙
を平版印刷原版用基材に利用することも提案されている
（特開昭５８−１７４４９）。2. Description of the Related Art A conventional coating solution for printing coated paper is applied to one side (A side) of a base paper, and an aluminum foil is attached to the opposite side of the base paper (B side). Aluminum foil laminated coated paper is printed on the coated side of the coating liquid, and then the aluminum foil side is normally placed inside to make a box to make a container that does not leak water or oil from food. Used. It is also used for creating catalogs and pamphlets using the gloss of aluminum foil. Further, it has been proposed to use a coated paper having an aluminum foil stuck thereon as a base material for a lithographic printing original plate (Japanese Patent Laid-Open No. 58-17449).
【０００３】一般に、アルミニウム、亜鉛、銅などの金
属箔を紙に貼り合わせる、いわゆるラミネートをする場
合、両者を接着させるための接着剤としては、酢酸ビニ
ル系樹脂、アクリル系樹脂、ポリオレフィン系樹脂、ウ
レタン系樹脂、フェノール樹脂などの各樹脂がその用途
によって単独、あるいは混合、あるいは共重合などの状
態にして使用される。これらはエマルジョンなどの状態
で水系塗料として、あるいは適切な溶剤を選んで溶剤系
塗料として、金属箔と紙との層間に塗布されラミネート
が行われる。また、カゼイン、ポバール、澱粉などの水
溶性樹脂を接着剤とすることも行われる。またこのほか
ラミネートの方法として、ワックス系樹脂、ポリオレフ
ィン系樹脂（ポリエチレン、ポリプロピレン、エチレン
・酢酸ビニル共重合樹脂、アイオノマーなど）のような
加熱により溶融する樹脂を用いたホットメルト法、押出
しコーティング法などもよく実用されている。これらの
うち、作業の容易性、無公害性から水性接着剤が通常好
んで用いられる。Generally, when a metal foil of aluminum, zinc, copper or the like is attached to paper, that is, when so-called laminating is performed, as an adhesive for adhering the two, a vinyl acetate resin, an acrylic resin, a polyolefin resin, Each resin such as a urethane resin and a phenol resin is used alone, in a mixed state or in a copolymerized state depending on its use. These are applied as a water-based paint in the form of an emulsion or as a solvent-based paint by selecting an appropriate solvent between the layers of the metal foil and the paper for lamination. In addition, water-soluble resins such as casein, poval, and starch may be used as the adhesive. In addition, as a laminating method, a hot-melt method or an extrusion coating method using a resin such as wax-based resin, polyolefin-based resin (polyethylene, polypropylene, ethylene-vinyl acetate copolymer resin, ionomer, etc.) that melts by heating, etc. Is also well used. Of these, water-based adhesives are usually preferred because they are easy to work with and are non-polluting.
【０００４】[0004]
【発明が解決しようとする課題】ところで、アルミ箔を
貼合する原紙面は、できるだけ平滑性をよくして用いら
れるが、元来原紙にはセルロース繊維のからみ合い、地
合ムラなどがあるためこれに起因する大小さまざまの凹
凸が存在し、これが貼り合わせたアルミ箔上にそのまま
浮き出して現われる欠点があった。これはアルミ箔の表
面均質性、平坦性、光沢性を著しく阻害し商品価値を落
とすことにつながっていた。By the way, the surface of the base paper on which the aluminum foil is laminated is used as smooth as possible. However, since the base paper originally has the entanglement of cellulose fibers and uneven texture, etc. Due to this, there are various irregularities of various sizes, and there is a drawback that these irregularities appear as they are on the laminated aluminum foil. This has led to a significant reduction in the surface homogeneity, flatness and gloss of the aluminum foil, which has led to a drop in commercial value.
【０００５】またアルミ箔の貼合に水性接着剤を使用す
る場合には、水が原紙面から浸透することにより原紙が
膨潤し、原紙の凹凸が助長されるという問題がある。Further, when a water-based adhesive is used for laminating aluminum foil, there is a problem that the base paper swells due to water permeating from the surface of the base paper, which promotes unevenness of the base paper.
【０００６】さらに、原紙面の平滑性が悪いと一定量の
接着剤を用いても接着剤の被覆性が充分でなくなるた
め、接着強度が弱くなるとか、あるいは所期の接着強度
を得るために多量の接着剤を必要とするといった欠点が
生ずることになる。Furthermore, if the smoothness of the base paper surface is poor, even if a certain amount of adhesive is used, the covering properties of the adhesive will not be sufficient, so that the adhesive strength will be weakened or the desired adhesive strength will be obtained. The drawback is that a large amount of adhesive is required.
【０００７】これを防止するために、原紙の両面に同一
の塗工液を同量程度塗工した通常の両面印刷用塗工紙を
用いる方法もあるが、アルミ箔と原紙との中間に印刷用
の塗工層を設けてもこの層は印刷する訳ではないので何
ら意味がなく、コスト高にもなり望ましいことではな
い。In order to prevent this, there is a method of using a normal coated paper for double-sided printing in which the same amount of the same coating liquid is applied on both sides of the base paper, but printing is performed between the aluminum foil and the base paper. Even if a coating layer for coating is provided, this layer does not print, so there is no meaning, and the cost is high, which is not desirable.
【０００８】また、貼合するアルミ箔は通常厚さ５〜２
０μｍのものが好ましく用いられている。この厚さを大
きくすれば原紙に起因する凹凸がアルミ面に浮き出るこ
とはそれだけ少なくなるが、この方法もコスト高を招
く。The aluminum foil to be laminated is usually 5 to 2 thick.
Those of 0 μm are preferably used. If this thickness is increased, the unevenness due to the base paper is less likely to appear on the aluminum surface, but this method also causes a high cost.
【０００９】そこで本発明は、原紙の片面（Ａ面）に印
刷用の塗工層を設け、それと反対面（Ｂ面）にアルミ箔
を貼合するいわゆるアルミ箔貼合用塗工紙であって、貼
合後のアルミ箔面に大小さまざまの凹凸が生ずることな
く、アルミ箔本来の表面平坦性、光沢性を保持させるこ
とができるアルミ箔貼合用塗工紙を製造する方法を提供
することを目的としてなされたものである。Therefore, the present invention is a so-called aluminum foil laminating coated paper in which a printing coating layer is provided on one side (A side) of the base paper and an aluminum foil is laminated on the opposite side (B side). The present invention provides a method for producing a coated paper for aluminum foil bonding, which can maintain the original surface flatness and glossiness of the aluminum foil without causing irregularities of various sizes on the surface of the aluminum foil after bonding. It was made for the purpose.
【００１０】[0010]
【課題を解決するための手段】本発明者らは上述した従
来技術における欠点を解消すべく鋭意検討の結果、アル
ミ箔を貼り合わせる原紙面（Ｂ面）に、顔料および接着
剤を主成分とする水性塗工液をある一定範囲の塗工量で
塗工し、さらにその上に表面サイズ剤をある一定範囲の
塗工量で塗布することにより、貼合後のアルミ箔表面平
坦性のきわめて優れたアルミ箔貼合用塗工紙が得られる
ことを見出し、本発明を完成するに至った。Means for Solving the Problems As a result of intensive studies aimed at eliminating the above-mentioned drawbacks of the prior art, the inventors of the present invention have a pigment and an adhesive as the main components on the base paper surface (B surface) to which the aluminum foil is attached. By coating the aqueous coating solution with a certain range of coating amount and then applying a surface sizing agent with a certain range of coating amount, the aluminum foil surface flatness after bonding can be made extremely high. They have found that an excellent coated paper for laminating aluminum foil can be obtained, and completed the present invention.
【００１１】すなわち本発明によるアルミ箔貼合用塗工
紙の製造方法は、原紙の片面（Ａ面）に顔料および接着
剤を主成分とする水性塗工液Ａを塗工し、Ａ面と逆の原
紙面（Ｂ面）に（１）顔料および接着剤を主成分とする
水性塗工液Ｂを絶乾重量で１〜１０ｇ／ｍ2 塗工し、さ
らにその上に（２）表面サイズ剤を絶乾重量で０．５〜
５ｇ／ｍ2 塗工することを特徴とするものである。この
塗工紙のＢ面側の表面サイズ剤塗工面上にアルミ箔を貼
り合せることによって、アルミ箔貼合塗工紙を得ること
ができる。That is, in the method for producing a coated paper for laminating aluminum foil according to the present invention, one side (A side) of a base paper is coated with an aqueous coating liquid A containing a pigment and an adhesive as main components, and the A side is coated. The reverse base paper surface (B surface) is coated with (1) an aqueous coating liquid B containing a pigment and an adhesive as a main component in an absolute dry weight of 1 to 10 g / m 2 , and further thereon (2) surface size. 0.5 to 0.5 in dry weight
It is characterized by coating at 5 g / m 2 . An aluminum foil-bonded coated paper can be obtained by bonding an aluminum foil on the surface sizing agent-coated surface on the B side of this coated paper.
【００１２】さらに本発明の好ましい実施態様において
は、前記表面サイズ剤塗工面のコブサイズ度（ＪＩＳ
Ｐ８１４０）を３０ｇ／ｍ2 以下とする。Further, in a preferred embodiment of the present invention, the degree of Cobb size of the surface coated with the surface sizing agent (JIS
P8140) is 30 g / m 2 or less.
【００１３】本発明において、原紙のＡ面に塗工する水
性塗工液ＡおよびＢ面に塗工する水性塗工液Ｂの顔料と
してはカオリン、クレー、炭酸カルシウム、酸化チタ
ン、水酸化アルミニウム、酸化亜鉛、硫酸バリウム、硫
酸カルシウム、タルク、シリカ、プラスチックピグメン
ト、サチンホワイト等の中から適宜選択して使用でき
る。In the present invention, the pigments of the aqueous coating liquid A for coating the side A of the base paper and the aqueous coating liquid B for coating the side B of the base paper include kaolin, clay, calcium carbonate, titanium oxide, aluminum hydroxide, It can be appropriately selected and used from zinc oxide, barium sulfate, calcium sulfate, talc, silica, plastic pigment, satin white and the like.
【００１４】接着剤としてはカゼイン、大豆蛋白、酵母
蛋白、澱粉、酸化澱粉およびエステル化澱粉、エーテル
化澱粉、カチオン化澱粉、酵素変性澱粉等の変性澱粉、
セルロース誘導体のような天然接着剤およびスチレン・
ブタジエン系共重合体、メチルメタクリレート・ブタジ
エン系共重合体等の共役ジエン系重合体ラテックス、ア
クリル酸エステル、メタクリル酸エステルの重合体或い
は共重合体等のアクリル系重合体ラテックス、エチレン
・酢酸ビニル共重合体のような酢酸ビニル系重合体ラテ
ックス、ポリビニルアルコールのような合成接着剤から
適宜選択された一種類以上が使用できる。As the adhesive, modified starch such as casein, soybean protein, yeast protein, starch, oxidized starch and esterified starch, etherified starch, cationized starch and enzyme modified starch,
Natural adhesives such as cellulose derivatives and styrene
Butadiene-based copolymers, conjugated diene-based polymer latexes such as methylmethacrylate / butadiene-based copolymers, acrylic-based polymer latexes such as acrylic acid ester / methacrylic acid ester polymers or copolymers, ethylene / vinyl acetate copolymers One or more appropriately selected from vinyl acetate polymer latex such as polymer and synthetic adhesive such as polyvinyl alcohol can be used.
【００１５】接着剤の使用料は顔料１００重量部に対
し、８〜３０重量部、好ましくは１０〜２０重量部の割
合で配合される。接着剤の使用量が８重量部以下では塗
工面の強度が弱くなり、３０重量部以上ではコスト高に
なる。The amount of the adhesive used is 8 to 30 parts by weight, preferably 10 to 20 parts by weight, based on 100 parts by weight of the pigment. When the amount of the adhesive used is 8 parts by weight or less, the strength of the coated surface becomes weak, and when it is 30 parts by weight or more, the cost increases.
【００１６】水性塗工液の調製に際しては、分散剤、流
動変性剤、耐水化剤、印刷適性向上剤、消泡剤、着色剤
等の通常の塗工紙用塗工液に配合される各種の助剤が所
望の特性を得るために必要に応じて適宜選択して使用す
ることができる。In the preparation of the aqueous coating liquid, various kinds of ordinary coating liquids for coated paper such as a dispersant, a flow modifier, a water resistance agent, a printability improver, a defoaming agent and a colorant are added. The auxiliary agent can be appropriately selected and used as necessary in order to obtain desired properties.
【００１７】水性塗工液Ａと水性塗工液Ｂとは同一組成
であってもよく、また異なっていてもよい。塗工液Ａの
塗工面（Ａ面）は印刷を施される面であるのに対し、塗
工液Ｂの塗工面（Ｂ面）はその上に表面サイズ剤を塗布
する面であって印刷をすることはないので、印刷適性を
配慮した組成にすることは必ずしも必要ではない。塗工
液Ｂには、耐水化剤を配合することも好ましく行われ
る。The aqueous coating liquid A and the aqueous coating liquid B may have the same composition or different compositions. The coating surface of the coating liquid A (side A) is the surface to be printed, whereas the coating surface of the coating liquid B (side B) is the surface on which the surface sizing agent is applied. Therefore, it is not always necessary to make the composition in consideration of printability. It is also preferable to add a waterproofing agent to the coating liquid B.
【００１８】このように調製された水性塗工液Ａは、針
葉樹晒クラフトパルプ、広葉樹晒クラフトパルプ、古紙
再生パルプ、機械パルプの中から選ばれたパルプを用い
て通常の抄紙機で抄造された酸性原紙または中性原紙の
片面（Ａ面）に１０〜３０ｇ／ｍ2 、さらに望ましくは
１５〜２５ｇ／ｍ2 塗工される。Ａ面に塗工液Ａを塗工
するに先立って３〜１５ｇ／ｍ2程度の下塗塗工を施し
てもよい。The thus-prepared aqueous coating liquid A was made by a conventional paper machine using a pulp selected from bleached softwood kraft pulp, bleached hardwood kraft pulp, recycled pulp from recycled paper, and mechanical pulp. One side (A side) of the acid base paper or the neutral base paper is coated with 10 to 30 g / m 2 , more preferably 15 to 25 g / m 2 . An undercoat coating of about 3 to 15 g / m 2 may be applied prior to coating the coating liquid A on the surface A.
【００１９】一方、原紙のＡ面と反対側のＢ面には、水
性塗工液Ａと同様にして調製された水性塗工液Ｂが１〜
１０ｇ／ｍ2 、望ましくは２〜５ｇ／ｍ2 塗工される。
塗工液Ｂの塗工量が１ｇ／ｍ2 未満のときは原紙の凹凸
の被覆が充分でなく、アルミ箔貼合後にアルミ箔表面平
坦性が不充分となりやすい。逆に塗工液Ｂの塗工量が１
０ｇ／ｍ2 を越えることはコスト高を招いてしまう。On the other hand, on the side B opposite to the side A of the base paper, the aqueous coating liquid B prepared in the same manner as the aqueous coating liquid A is added.
10 g / m 2, desirably 2-5 g / m 2 coating.
When the coating amount of the coating liquid B is less than 1 g / m 2 , the unevenness of the base paper is not sufficiently covered, and the aluminum foil surface flatness tends to be insufficient after laminating the aluminum foil. Conversely, the coating amount of coating liquid B is 1
Exceeding 0 g / m 2 leads to high cost.
【００２０】なお、水性塗工液Ａの原紙Ａ面への塗工と
水性塗工液Ｂの原紙Ｂ面への塗工は、どちらを先に行っ
てもよい。Either coating of the aqueous coating liquid A on the side of the base paper A or coating of the aqueous coating liquid B on the side of the base paper B may be performed first.
【００２１】本発明で用いる原紙は、坪量５０〜４００
ｇ／ｍ2 のものが使用でき、単層抄きであっても多層抄
き合わせであってもかまわないが、用途によって使い分
けられる。つまり、カタログやパンフレットなどの枚葉
状で使用されるものは８０〜１５０ｇ／ｍ2 、また製函
用に使用されるものは２００〜３００ｇ／ｍ2 程度の坪
量の原紙が好ましいとされている。The base paper used in the present invention has a basis weight of 50 to 400.
It is possible to use g / m 2 and it is possible to use a single-layer papermaking or a multi-layer papermaking, but it is properly used depending on the application. That is, it is said that the base paper having a basis weight of about 80 to 150 g / m 2 is used for a sheet-shaped sheet such as a catalog or a pamphlet, and the grammage of about 200 to 300 g / m 2 is used for a box-making product. .
【００２２】原紙Ｂ面の水性塗工液Ｂ塗工面の上に塗工
する表面サイズ剤は、原紙を抄造するときに適用される
表面サイズプレスと同一組成であってもよく、また所望
のコブサイズ度を得るために適宜変更してもよく、また
耐水化剤を加えてもよい。またクレー、炭酸カルシウム
などの顔料を併用することも可能である。The surface sizing agent applied on the surface of the base paper B coated with the aqueous coating liquid B may have the same composition as the surface size press applied when the base paper is made into a paper, and the desired lump size It may be changed appropriately to obtain the desired degree, and a water resistant agent may be added. It is also possible to use a pigment such as clay or calcium carbonate in combination.
【００２３】表面サイズ剤の目的はよく知られているよ
うに表面サイズの成分が原紙の表面から浸透し間隙を埋
める機構であり、また合成品のような重合物質を使用す
ればフィルム形成能も期待される。The purpose of the surface sizing agent is, as is well known, a mechanism of allowing the components of the surface size to permeate from the surface of the base paper to fill the gaps, and also to form a film by using a polymer substance such as a synthetic product. Be expected.
【００２４】原紙を抄造する際に適用される表面サイズ
剤は絶乾重量で通常片面０．０１〜２ｇ／ｍ2 の比較的
少ない塗工量であるが、本発明において原紙のＢ面に塗
工する表面サイズ剤は絶乾重量で０．５〜５ｇ／ｍ2、
望ましくは１．５〜３ｇ／ｍ2 で所期の効果が得られ
る。表面サイズ剤の塗工量が０．５ｇ／ｍ2 より少ない
と、アルミ箔貼合後のアルミ面表面平坦性が劣り、また
目的とするコブサイズ度が得られない。また５ｇ／ｍ2
より多いときはドライヤーの負荷が大きくなり生産スピ
ードが低下する欠点が生ずる。The surface sizing agent applied when making a base paper is usually a relatively small coating amount of 0.01 to 2 g / m 2 on one side in absolute dry weight, but in the present invention, it is applied to the B side of the base paper. The surface sizing agent is 0.5-5 g / m 2 in terms of absolute dry weight
Desirably, the desired effect is obtained at 1.5 to 3 g / m 2 . When the coating amount of the surface sizing agent is less than 0.5 g / m 2, the flatness of the surface of the aluminum surface after laminating the aluminum foil is poor and the desired degree of bump size cannot be obtained. 5 g / m 2
When it is more than that, the load of the dryer becomes large and the production speed is lowered, which is a drawback.
【００２５】表面サイズ剤としては澱粉、変性澱粉、澱
粉誘導体、セルロース誘導体、カゼイン、ポリビニルア
ルコール、ポリ酢酸ビニル、合成ゴムエマルジョン、ス
チレン・マレイン酸共重合物、酢酸ビニル・マレイン酸
共重合物、ポリアクリルアミド、アミン系重合物、スチ
レン・アクリル共重合体、オレフィン・マレイン酸共重
合体、アルキルケテンダイマー、尿素樹脂、コロイダル
シリカなどの中から適宜選択して一種類以上を用いるこ
とができる。As the surface sizing agent, starch, modified starch, starch derivative, cellulose derivative, casein, polyvinyl alcohol, polyvinyl acetate, synthetic rubber emulsion, styrene / maleic acid copolymer, vinyl acetate / maleic acid copolymer, poly One or more kinds may be appropriately selected from acrylamide, amine-based polymer, styrene / acrylic copolymer, olefin / maleic acid copolymer, alkylketene dimer, urea resin, colloidal silica and the like.
【００２６】本発明において採用する塗工ならびに乾燥
方式については特に限定されるものではなく、一般の塗
工紙製造に用いられるブレードコーター、エアーナイフ
コーター、バーコーター、ロールコーター、チャンプレ
ックスコーター等によって単層乃至多層に塗工され、お
よそ３〜８％の紙水分まで乾燥されてリールに巻き取ら
れる。また、２基以上の塗工設備を有する１台のコータ
ーで原紙のＡ面およびＢ面を連続して塗工してもよく、
あるいはＡ面、Ｂ面のいずれかを塗工したのち乾燥して
一旦巻取り、つぎに残りの他の面を塗工するのであって
もかまわない。原紙のＢ面に塗工する水性塗工液Ｂとそ
の上に塗工する表面サイズ剤は別々のコーターで塗工し
てもよく、また１台のコーターで連続して塗工してもよ
い。The coating and drying method employed in the present invention is not particularly limited, and may be a blade coater, an air knife coater, a bar coater, a roll coater, a chanplex coater or the like used in the production of general coated paper. It is coated in a single layer or multiple layers, dried to a paper moisture of about 3-8%, and wound on a reel. Alternatively, one coater having two or more coating equipments may continuously coat the side A and the side B of the base paper,
Alternatively, it is possible to coat either the A side or the B side, then dry and wind once, and then coat the remaining other side. The aqueous coating liquid B to be coated on the B side of the base paper and the surface sizing agent to be coated thereon may be coated by different coaters, or may be continuously coated by one coater. .
【００２７】[0027]
【実施例】以下に実施例および比較例を挙げて本発明を
より具体的に説明するが、本発明はこれらの実施例のみ
に限定されるものではない。なお実施例および比較例に
示す部または％は、全て絶乾重量部または絶乾重量％を
表すものとする。また、塗工量は全て絶乾重量で表示す
る。The present invention will be described in more detail with reference to the following examples and comparative examples, but the present invention is not limited to these examples. In addition, all parts or% shown in Examples and Comparative Examples represent absolute dry weight parts or absolute dry weight%. In addition, all coating amounts are displayed in absolute dry weight.
【００２８】実施例１ 顔料としてカオリン（米国、エンゲルハード ミネラル
ズ アンド ケミカルズ（ＥＭＣ）社製、商品名 ウル
トラホワイト９０）４０部及び粒子径１〜４μｍの重質
炭酸カルシウム（自社製、粉砕炭酸カルシウム）６０部
を混合機に入れ、これに攪拌しながら酸化澱粉（王子コ
ンスターチ社製、商品名 王子エースＡ１０％溶液）３
部及びラテックス５０％液（旭化成社製、商品名 Ｌ−
１５３７）１２部、更に顔料当たり分散剤としてポリア
クリル酸ソーダ０．３％、潤滑剤としてステアリン酸カ
ルシウム０．５％、蛍光染料０．２％を順次添加し、十
分混合分散した後、２５％アンモニア水溶液を用いてｐ
Ｈをアルカリ性に調節して水性塗工液Ａ（固形分濃度６
０％）を製造した。 Example 1 40 parts of kaolin (trade name: Ultra White 90 manufactured by Engelhard Minerals and Chemicals (EMC), USA, trade name, Ultra White 90) as a pigment and heavy calcium carbonate having a particle diameter of 1 to 4 μm (made by itself, ground calcium carbonate) ) 60 parts were put into a mixer, and while being stirred, oxidized starch (Oji Constarch Co., Ltd., trade name Oji Ace A 10% solution) 3
Part and latex 50% liquid (Asahi Kasei Co., Ltd., trade name L-
1537) 12 parts, and then 0.3% of sodium polyacrylate as a dispersant per pigment, 0.5% of calcium stearate as a lubricant, and 0.2% of fluorescent dye are sequentially added, and after sufficiently mixing and dispersing, 25% ammonia is added. P using an aqueous solution
Aqueous coating liquid A (solid content concentration 6
0%).
【００２９】この塗工液Ａを広葉樹晒クラフトパルプを
用いて公知の抄紙機で抄造した単層抄きの坪量８０ｇ／
ｍ2 の原紙の片面（Ａ面）にブレードコーター（三菱重
工業社製）により２０ｇ／ｍ2 塗工し、公知の乾燥機で
乾燥して紙水分６％の片面塗工紙を製造した。This coating liquid A was made with a known paper machine using bleached hardwood kraft pulp to obtain a single layer paper having a basis weight of 80 g /
20 g / m 2 was coated on one side (A side) of the m 2 base paper with a blade coater (manufactured by Mitsubishi Heavy Industries, Ltd.) and dried by a known dryer to produce a one-side coated paper having a paper moisture content of 6%.
【００３０】つぎに上記片面塗工紙の、塗工済みのＡ面
とは反対側のＢ面に、下記のように調製した水性塗工液
Ｂを水性塗工液Ａと同様にして３．０ｇ／ｍ2 塗工した
のち巻取った。Then, on the side B of the above-mentioned one-side coated paper, which is the side opposite to the coated side A, the aqueous coating liquid B prepared as described below was prepared in the same manner as the aqueous coating liquid A.3. After coating with 0 g / m 2, it was wound up.
【００３１】 （水性塗工液Ｂ） カオリン（ウルトラホワイト９０） ３０部 重質炭酸カルシウム（自製、粒子径１〜４μｍ） ７０部 酸化澱粉（王子エースＡ １０％液） ２部 ラテックス（Ｌ−１５３７）５０％液 １４部 水性塗工液Ａと同様に、上記成分に顔料当たり分散剤と
してポリアクリル酸ソーダ０．３％、潤滑剤としてステ
アリン酸カルシウム０．５％、蛍光塗料０．２％を順次
添加して十分混合分散した後、２５％アンモニア水溶液
を用いて、ｐＨをアルカリに調節した。固形分濃度は６
０％とした。(Aqueous Coating Solution B) Kaolin (Ultra White 90) 30 parts Heavy calcium carbonate (manufactured, particle size 1 to 4 μm) 70 parts Oxidized starch (Oji Ace 10% liquid) 2 parts Latex (L-1537) ) 50% liquid 14 parts As in the case of the aqueous coating liquid A, 0.3% of sodium polyacrylate as a dispersant per pigment, 0.5% of calcium stearate as a lubricant, and 0.2% of fluorescent paint are sequentially added to the above components. After adding and thoroughly mixing and dispersing, the pH was adjusted to alkali with a 25% aqueous ammonia solution. Solids concentration is 6
0%.
【００３２】つぎに上記塗工液Ｂを塗工した面の上にさ
らに、表面サイズ剤液をロールコーター（三菱重工業社
製）で２．５ｇ／ｍ2 塗工したのち乾燥して紙水分６．
５％の両面塗工紙を得た。このときの表面サイズ剤液は
以下の組成を用いた。Next, a surface sizing agent solution was further coated on the surface coated with the coating solution B with a roll coater (manufactured by Mitsubishi Heavy Industries, Ltd.) at 2.5 g / m 2 and then dried to obtain a paper moisture content of 6 ．
A 5% double-sided coated paper was obtained. The surface sizing agent liquid used at this time had the following composition.
【００３３】 酸化澱粉（王子エースＡ）１０％溶液 ６．０部 ポリビニルアルコール（クラレ社製、 商品名 ＰＶＡ１０５）１０％溶液 １．５部 水 ２５部Oxidized starch (Oji Ace A) 10% solution 6.0 parts Polyvinyl alcohol (Kuraray Co., Ltd., trade name PVA105) 10% solution 1.5 parts Water 25 parts
【００３４】得られた両面塗工紙を２５０kg／cmのニッ
プ圧でスーパーカレンダー処理し、本発明のアルミ箔貼
合用塗工紙を得た。この塗工紙の表面サイズ剤塗工面
（Ｂ面）のコブサイズ度は２３ｇ／ｍ2 であった。The obtained double-sided coated paper was supercalendered at a nip pressure of 250 kg / cm to obtain an aluminum foil-coated coated paper of the present invention. The surface sizing agent-coated surface (B side) of this coated paper had a degree of Cobb size of 23 g / m 2 .
【００３５】つぎに、アルミ箔貼合機でこの塗工紙の表
面サイズ剤塗工面（Ｂ面側）に酢酸ビニルエマルジョン
を２ｇ／ｍ2 塗布して、さらに厚さ７μｍのアルミ箔を
貼合して、アルミ箔貼合塗工紙を得た。このアルミ箔貼
合塗工紙の品質を評価した結果を表１に示す。Next, using an aluminum foil laminating machine, 2 g / m 2 of vinyl acetate emulsion was applied to the surface sizing agent coated surface (B side) of this coated paper, and aluminum foil having a thickness of 7 μm was further laminated. Then, an aluminum foil-bonded coated paper was obtained. Table 1 shows the results of evaluation of the quality of the aluminum foil-bonded coated paper.
【００３６】なおこのときの品質評価方法はつぎのとお
りである。 1) コブサイズ度：ＪＩＳ Ｐ８１４０を適用した。た
だし水を入れて、次に水を取り除くまでの時間は３０秒
とした。The quality evaluation method at this time is as follows. 1) Cobb size degree: JIS P8140 was applied. However, the time from the addition of water to the removal of water was 30 seconds.
【００３７】2) アルミ箔表面平坦性：アルミ箔の表面
を目視で観察し、凹凸の有無をつぎのように表した。 凹凸が全く認められず、滑らかな外観 ○ 凹凸が多く、粗い外観 ×2) Aluminum foil surface flatness: The surface of the aluminum foil was visually observed and the presence or absence of irregularities was expressed as follows. Smooth appearance without any irregularities ○ Rough appearance with many irregularities ×
【００３８】3) アルミ箔接着強度：アルミ箔貼合後に
紙の端部からアルミ箔を爪で剥がし、その状態を見て塗
工紙とアルミ箔との接着性をつぎのように評価した。 接着性がきわめて良い ○ （無理に剥がそうとするとアルミ箔が破れてしまう） 接着性が劣る × （アルミ箔が破れずに塗工紙から剥がれてしまう）3) Adhesive strength of aluminum foil: After the aluminum foil was bonded, the aluminum foil was peeled off from the edge of the paper with a nail, and the adhesiveness between the coated paper and the aluminum foil was evaluated by observing the state. Excellent adhesiveness ○ (Aluminum foil will tear if you try to peel it off forcibly) Poor adhesiveness × (Aluminum foil will peel off from the coated paper without tearing)
【００３９】実施例２ 表面サイズ剤液をつぎの組成としてブレードコーターで
１．５ｇ／ｍ2 塗工したほかは、実施例１と全く同様に
してアルミ箔貼合用塗工紙を製造して品質評価した。結
果を表１に示す。 酸化澱粉（王子エースＡ）１０％溶液 ６．０部 ポリビニルアルコール（ＰＶＡ１０５）１０％溶液 ２．０部 スチレン・アクリル系樹脂（荒川化学社製 商品名 ポリマロン１３０１）１５％溶液 ２．０部 水 ３０部 Example 2 A coated paper for laminating aluminum foil was produced in exactly the same manner as in Example 1 except that the surface sizing agent solution was coated with a blade coater in the following composition at 1.5 g / m 2. Quality evaluated. Table 1 shows the results. Oxidized starch (Oji Ace A) 10% solution 6.0 parts Polyvinyl alcohol (PVA105) 10% solution 2.0 parts Styrene / acrylic resin (Arakawa Chemical Co., Ltd. trade name Polymaron 1301) 15% solution 2.0 parts Water 30 Department
【００４０】実施例３ 表面サイズ剤液をつぎの組成としたほかは、実施例１と
全く同様にしてアルミ箔貼合用塗工紙を製造して品質評
価した。結果を表１に示す。 酵素変性澱粉（自社製）１０％溶液 ６．０部 水 ２５部 Example 3 A coated paper for laminating aluminum foil was produced and quality evaluated in exactly the same manner as in Example 1 except that the surface sizing liquid had the following composition. Table 1 shows the results. Enzyme-modified starch (made in-house) 10% solution 6.0 parts Water 25 parts
【００４１】実施例４ 表面サイズ剤液をつぎの組成としたほかは、実施例１と
全く同様にしてアルミ箔貼合用塗工紙を製造して品質評
価した。結果を表１に示す。 酸化澱粉（王子エースＡ）１０％溶液 ７．５部 変性ポリアミド樹脂（ディックハーキュレス社製 商品名 エピノックスＰ９００７Ｙ）３０％溶液 ０．３部 水 ２４部 Example 4 A coated paper for laminating aluminum foil was produced and quality evaluated in exactly the same manner as in Example 1 except that the surface sizing liquid had the following composition. Table 1 shows the results. Oxidized starch (Oji Ace A) 10% solution 7.5 parts Modified polyamide resin (trade name Epinox P9007Y manufactured by Dick Hercules) 30% solution 0.3 parts Water 24 parts
【００４２】実施例５ 表面サイズ剤液をつぎの組成として３ｇ／ｍ2 塗工した
ほかは、実施例１と全く同様にしてアルミ箔貼合用塗工
紙を製造して品質評価した。結果を表１に示す。 酸化澱粉（王子エースＡ）１０％溶液 ７．０部 カオリン（ウルトラホワイト９０）６０％分散液 ２．０部 水 ２５部 Example 5 A coated paper for laminating aluminum foil was produced and quality evaluated in exactly the same manner as in Example 1 except that 3 g / m 2 of the surface sizing liquid was applied as the following composition. Table 1 shows the results. Oxidized starch (Oji Ace A) 10% solution 7.0 parts Kaolin (Ultra White 90) 60% dispersion 2.0 parts Water 25 parts
【００４３】実施例６ 実施例１においてまず原紙の片面（Ｂ面）に水性塗工液
Ｂおよび表面サイズ剤液を順次塗工し、その後、これと
反対面（Ａ面）に水性塗工液Ａを塗工したことのほか
は、実施例１と全く同様にしてアルミ箔貼合用塗工紙を
製造して品質評価した。結果を表１に示す。 Example 6 In Example 1, first, the aqueous coating solution B and the surface sizing agent solution were sequentially coated on one side (side B) of the base paper, and thereafter, the aqueous coating solution was coated on the opposite side (side A). Except that A was coated, the coated paper for laminating aluminum foil was manufactured and the quality was evaluated in exactly the same manner as in Example 1. Table 1 shows the results.
【００４４】実施例７ 実施例１において原紙の中層を坪量１０ｇ／ｍ2 とし、
該中層の両側にそれぞれ坪量１２０ｇ／ｍ2 の層を抄き
合わせ合計２５０ｇ／ｍ2 の坪量の３層抄きとした原紙
を用いたほかは、実施例１と全く同様にしてアルミ箔貼
合用塗工紙を製造して品質評価した。結果を表１に示
す。 Example 7 In Example 1, the middle layer of the base paper had a basis weight of 10 g / m 2 ,
An aluminum foil was prepared in exactly the same manner as in Example 1 except that a base paper having a basis weight of 120 g / m 2 was made on both sides of the middle layer to form a three-layer base paper having a total basis weight of 250 g / m 2. A coated paper for laminating was manufactured and its quality was evaluated. Table 1 shows the results.
【００４５】実施例８ 実施例７の原紙を用いて、この片面（Ａ面）に実施例１
で用いた塗工液Ｂを１０ｇ／ｍ2 下塗り塗工し、さらに
その上に実施例１で用いた塗工液Ａを１５ｇ／ｍ2 上塗
り塗工した。次にこの塗工面とは反対側の原紙面（Ｂ
面）に実施例１で用いた塗工液Ｂを４ｇ／ｍ2 塗工し、
さらにその上に実施例１で用いた表面サイズ剤液を２．
５ｇ／ｍ2 塗工した。その他は実施例１と全く同様にし
てアルミ箔貼合用塗工紙を製造して品質評価した。結果
を表１に示す。 Example 8 Using the base paper of Example 7, Example 1 is applied to this one side (A side).
The coating liquid B used in Example 2 was applied as an undercoat of 10 g / m 2 , and the coating liquid A used in Example 1 was further applied as an overcoat of 15 g / m 2 thereon. Next, the base paper surface (B
Coating solution B used in Example 1 on the surface) at 4 g / m 2 and
On top of that, the surface sizing agent liquid used in Example 1 was added.
5 g / m 2 was applied. Otherwise, the coated paper for laminating aluminum foil was manufactured in exactly the same manner as in Example 1, and the quality was evaluated. Table 1 shows the results.
【００４６】実施例９ 実施例８において、塗工液Ｂにさらに変性ポリアミド樹
脂（エピノックスＰ９００７Ｙ）３０％溶液１部を加え
てよく混和したのちに、実施例８と同様の塗工を行いア
ルミ箔貼合用塗工紙を製造して品質評価した。結果を表
１に示す。 Example 9 In Example 8, 1 part of a 30% solution of modified polyamide resin (Epinox P9007Y) was further added to coating liquid B and mixed well, and then the same coating as in Example 8 was performed. A coated paper for laminating was manufactured and its quality was evaluated. Table 1 shows the results.
【００４７】比較例１ 原紙のＢ面に表面サイズ剤液を塗布しないこと以外は、
実施例１と全く同様にしてアルミ箔貼合用塗工紙を製造
し品質評価した。結果を表１に併記する。 Comparative Example 1 Except that the surface sizing agent solution was not applied to the B side of the base paper,
Exactly the same as in Example 1, a coated paper for laminating aluminum foil was manufactured and the quality was evaluated. The results are also shown in Table 1.
【００４８】比較例２ 原紙のＢ面に表面サイズ剤液を塗布しないこと以外は、
実施例８と全く同様にしてアルミ箔貼合用塗工紙を製造
し品質評価した。結果を表１に併記する。 Comparative Example 2 Except that the surface sizing agent liquid was not applied to the B side of the base paper,
The coated paper for laminating aluminum foil was manufactured and quality evaluated in exactly the same manner as in Example 8. The results are also shown in Table 1.
【００４９】表１からわかるように、本発明方法により
得られたアルミ箔貼合用塗工紙で製造したアルミ箔貼合
塗工紙は、アルミ箔表面に微細な凹凸もなく極めて平坦
な外観を有し、またアルミ箔と塗工紙間の接着性も極め
て優れている。As can be seen from Table 1, the aluminum foil-bonded coated paper produced from the aluminum foil-bonded coated paper obtained by the method of the present invention has an extremely flat appearance without fine irregularities on the aluminum foil surface. Also, the adhesiveness between the aluminum foil and the coated paper is extremely excellent.
【００５０】[0050]
【発明の効果】以上説明したように本発明によれば、ア
ルミ箔を貼合したあとのアルミ箔表面平坦性がきわめて
優れ、かつ塗工紙とアルミ箔との接着性が良好なアルミ
箔貼合用塗工紙を得ることができ、業界に対する寄与が
きわめて大きい。As described above, according to the present invention, an aluminum foil is laminated which has an excellent surface flatness of aluminum foil after laminating the aluminum foil and a good adhesiveness between the coated paper and the aluminum foil. The combined coated paper can be obtained, and the contribution to the industry is extremely large.
【００５１】 [0051]
───────────────────────────────────────────────────── フロントページの続き (72)発明者 梶田 勇雄 鳥取県米子市吉岡373番地 王子製紙株 式会社 米子工場内 (72)発明者 楠見 公史 鳥取県米子市吉岡373番地 王子製紙株 式会社 米子工場内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yukio Kajita 373 Yoshioka, Yonago, Tottori Prefecture Oji Paper Co., Ltd. Yonago Mill (72) Inventor, Kusumi 373 Yoshioka, Yonago, Tottori Yonago Paper Co., Ltd. in the factory
Claims (2)
主成分とする水性塗工液Ａを塗工し、Ａ面と逆の原紙面
（Ｂ面）に（１）顔料および接着剤を主成分とする水性
塗工液Ｂを絶乾重量で１〜１０ｇ／ｍ2 塗工し、さらに
その上に（２）表面サイズ剤を絶乾重量で０．５〜５ｇ
／ｍ2 塗工することを特徴とする、Ｂ面側にアルミ箔を
貼り合わせるためのアルミ箔貼合用塗工紙の製造方法。1. An aqueous coating solution A containing a pigment and an adhesive as a main component is applied to one side (A side) of the base paper, and (1) pigment and adhesive are applied to the base paper side (B side) opposite to the A side. Aqueous coating liquid B containing the agent as a main component is applied at an absolute dry weight of 1 to 10 g / m 2 , and (2) a surface sizing agent is applied at an absolute dry weight of 0.5 to 5 g.
/ M 2 coating, a method for producing a coated paper for laminating aluminum foil for laminating an aluminum foil on the B side.
サイズ度を３０ｇ／ｍ2 以下とすることを特徴とする請
求項１記載のアルミ箔貼合用塗工紙の製造方法。2. The method for producing coated paper for laminating aluminum foil according to claim 1, wherein the degree of Cobb sizing of the surface of the surface B after the surface sizing agent is coated is 30 g / m 2 or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19381391A JP2684881B2 (en) | 1991-08-02 | 1991-08-02 | Manufacturing method of coated paper for aluminum foil bonding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19381391A JP2684881B2 (en) | 1991-08-02 | 1991-08-02 | Manufacturing method of coated paper for aluminum foil bonding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0544196A JPH0544196A (en) | 1993-02-23 |
| JP2684881B2 true JP2684881B2 (en) | 1997-12-03 |
Family
ID=16314191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19381391A Expired - Fee Related JP2684881B2 (en) | 1991-08-02 | 1991-08-02 | Manufacturing method of coated paper for aluminum foil bonding |
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| Country | Link |
|---|---|
| JP (1) | JP2684881B2 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3548237B2 (en) * | 1994-08-29 | 2004-07-28 | シャープ株式会社 | Thin film transistor |
| US5885340A (en) * | 1994-10-14 | 1999-03-23 | Ecc International Ltd. | Quality of multiple coated paper |
| TW344901B (en) * | 1995-02-15 | 1998-11-11 | Handotai Energy Kenkyusho Kk | Active matrix display device |
| TW345654B (en) | 1995-02-15 | 1998-11-21 | Handotai Energy Kenkyusho Kk | Active matrix display device |
-
1991
- 1991-08-02 JP JP19381391A patent/JP2684881B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0544196A (en) | 1993-02-23 |
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