JPH09170195A - Production of coated paper for offset printing and coated paper - Google Patents
Production of coated paper for offset printing and coated paperInfo
- Publication number
- JPH09170195A JPH09170195A JP23337796A JP23337796A JPH09170195A JP H09170195 A JPH09170195 A JP H09170195A JP 23337796 A JP23337796 A JP 23337796A JP 23337796 A JP23337796 A JP 23337796A JP H09170195 A JPH09170195 A JP H09170195A
- Authority
- JP
- Japan
- Prior art keywords
- coated paper
- coating
- coating liquid
- paper
- parts
- 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.)
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Abstract
Description
【０００１】[0001]
【発明の属する分野】本発明は、原紙に顔料と接着剤と
を含有する塗被液をフィルムトランスファー方式で塗被
する場合において、高速操業性に優れ、品質も良好なオ
フセット印刷用塗被紙の製造方法及びその塗被紙に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coated paper for offset printing, which is excellent in high-speed operability and has good quality when a base paper is coated with a coating liquid containing a pigment and an adhesive by a film transfer method. And a coated paper thereof.
【０００２】[0002]
【従来の技術】近年、印刷用紙の需要も徐々に増大する
傾向にある。とりわけ、チラシ、カタログ、パンフレッ
ト、ダイレクトメール等広告、宣伝を目的とした商業印
刷分野での需要が伸びていることが特徴である。これら
商業印刷物は、それ自体の商品価値は低いが、宣伝媒体
として目的が達成されることが重要であるので、低コス
トで印刷仕上がりの良いものが求められ、紙ユーザーの
コストダウン指向は一層強まってきており、使用する紙
もより低グレード化、軽量化に向かっている。2. Description of the Related Art In recent years, demand for printing paper has tended to gradually increase. In particular, it is characterized by growing demand in the commercial printing field for advertisements and advertisements such as flyers, catalogs, pamphlets, and direct mail. Although these commercial prints have low commercial value themselves, it is important that the purpose be achieved as an advertising medium, so low-cost, good-quality prints are required, and paper users are becoming more cost-conscious. And the use of paper is also getting lower and lighter.
【０００３】このような旺盛な需要に対応するため、紙
メーカーでは製品のより効率的な生産とコストダウンを
図るべく、塗被装置の広幅、高速化を進めており、高品
質を維持したまま生産性を高めることが重要な技術課題
である。In order to meet such a strong demand, a paper manufacturer is promoting widening and speeding up of a coating apparatus in order to produce a product more efficiently and reduce costs, while maintaining high quality. Improving productivity is an important technical issue.
【０００４】塗被紙の生産方式としては、抄紙と塗被と
を別々の工程で行う通常用いられるオフマシン塗被方式
と、一台のマシンで抄紙と塗被を同時に行うオンマシン
塗被方式があり、オンマシン塗被方式の方がオフマシン
塗被方式に比べて、製品の製造原価を抑えることが可能
で、価格競争力のある製品を製造できる特徴がある。特
に多層塗被紙の場合、原紙に安価な顔料を含む下塗り塗
被液をオンマシンで塗被した後、上塗り塗被液を塗被す
ることにより、単層塗被紙より安価な製品が製造でき、
また、品質的にも下塗り塗被により原紙の被覆性が向上
し、面状や印刷品質も良くなることから近年、従来の高
級グレード（アート紙）に限らず、より塗被量の少ない
塗被紙の製造においても多層塗被による製品が増えてい
る。そのため、オンマシン塗被方式であるフィルムトラ
ンスファー塗被装置の一層の高速化が求められている。[0004] As a production method of coated paper, an off-machine coating method which is usually used in which paper making and coating are performed in separate steps, and an on-machine coating method in which paper making and coating are simultaneously performed by one machine In comparison with the off-machine coating method, the on-machine coating method has a feature that the manufacturing cost of the product can be suppressed and a product having a price competitiveness can be manufactured. In particular, in the case of multi-layer coated paper, an undercoat coating solution containing an inexpensive pigment is applied on-machine to the base paper, and then an overcoat coating solution is applied to produce a cheaper product than a single-layer coated paper. You can
In addition, in terms of quality, since the coverage of the base paper is improved by the undercoat coating, and the surface condition and print quality are also improved, not only conventional high-grade grades (art paper) but also coatings with a smaller coating amount have been used in recent years. In the manufacture of paper, products using multi-layer coating are increasing. For this reason, there is a demand for an even higher speed of a film transfer coating apparatus which is an on-machine coating method.
【０００５】しかし、オンマシン塗被方式で使用するゲ
ートロールコータやブレードあるいはロッドメタリング
サイズプレスコータなどを用いて、通常の塗被液を原紙
に塗被する場合、現在までのところ操業最高速度で約１
１００ｍ／分が高速化の限界である。この高速化を阻ん
でいる原因の一つに、ブレードあるいはロッドメタリン
グサイズプレスコータの場合、アプリケーションロール
ニップ出口で塗被液が霧状になって飛散する、ミストと
呼ばれる現象がある。ミストは、操業条件によっては１
１００ｍ／分より低速でも発生し始めるが、高速条件に
なるほどその程度が増し、作業環境の悪化を招くと同時
に、周辺ロールを汚し、更に乾燥固化した場合には紙表
面に落下し、製品欠陥となる。また、ゲートロールコー
タの場合にも、同様なミスト発生の問題が生じると同時
に、塗被液の機械的安定性が劣るとインナーロールとア
ウターロール間或いは、インナーロールとアプリケータ
ロール間のように互いにロール径、周速が異なるロール
間にかかるせん断力によって、塗被液が凝固してロール
表面に付着するガムアップと呼ばれる現象が生じ操業性
を低下させる。これらの問題は塗被液濃度を低下させる
ことによって低減できるが、乾燥負荷を増すうえ、塗被
液の原紙へのしみ込みが多くなり、原紙被覆性が劣るた
め、塗被後の光沢ムラが多くなり、面状、印刷適性が低
下してしまう問題がある。However, when a normal coating liquid is applied to the base paper by using a gate roll coater, a blade or a rod metalling size press coater used in the on-machine coating method, the maximum operating speed has so far been reached. About 1
100 m / min is the limit for speeding up. One of the causes of hindering this speed increase is a phenomenon called mist in the case of a blade or rod metering size press coater, in which the coating liquid is atomized and scattered at the exit of the application roll nip. Mist is 1 depending on operating conditions
Although it starts to occur even at a speed lower than 100 m / min, the higher the condition becomes, the more it worsens the working environment, and at the same time, the peripheral rolls are soiled and, if further dried and solidified, they fall onto the paper surface, resulting in product defects. Become. Also, in the case of a gate roll coater, a similar problem of mist generation occurs, and at the same time, if the mechanical stability of the coating liquid is poor, it may occur between the inner roll and the outer roll or between the inner roll and the applicator roll. A shearing force applied between rolls having different roll diameters and peripheral speeds causes a phenomenon called gum-up in which the coating liquid coagulates and adheres to the roll surface, which lowers operability. These problems can be reduced by decreasing the concentration of the coating liquid, but in addition to increasing the drying load, the amount of the coating liquid soaking into the base paper increases and the coverage of the base paper is poor, resulting in uneven gloss after coating. However, there is a problem in that the surface quality and printability deteriorate.
【０００６】特開昭６３ー９９３９５号公報には、ラテ
ックスのスチレン・ブタジエン量、ガラス転移点、粒子
径、配合量を規定することにより、ゲートロール塗工で
のガムアップやアプリケーターロール汚れの改善を行っ
ている。しかしながら、塗工速度が６００ｍ／分以上で
の効果と記載しているが、実際の高速条件についての記
載がない。また、特開平７ー１８９１８８号公報では、
トランスファーロール塗被液を、濃度５８％以上で、Ｂ
型粘度を１５００ｃｐｓ以下に調節することによって、
良好な塗工ができるとしている。しかしながら、これら
の塗被液を低速で塗被した場合は問題ないが、高速で塗
被した時、特に１１００ｍ／分以上の高速操業条件では
ミスト発生及びガムアップが一層顕著になるという問題
があった。JP-A-63-99395 discloses that the amount of styrene / butadiene, the glass transition point, the particle size, and the amount of a latex are specified to improve gum up in gate roll coating and contamination of an applicator roll. It is carried out. However, it describes that the effect is at a coating speed of 600 m / min or more, but does not describe the actual high-speed condition. Further, in Japanese Patent Laid-Open No. 7-189188,
Transfer roll coating liquid with a concentration of 58% or more, B
By adjusting the mold viscosity below 1500 cps,
It says that good coating can be done. However, there is no problem when these coating liquids are applied at a low speed, but there is a problem that mist generation and gum up become more remarkable when applied at a high speed, especially under high-speed operating conditions of 1100 m / min or more. It was
【０００７】また、ダブル塗工紙の製造において、輪転
オフセット印刷用塗被紙の製造における下塗り顔料塗被
組成物に関し、特開昭６４ー３３２９７号公報では、重
質炭酸カルシウムを７０〜１００重量％、接着剤として
デンプン誘導体４〜１３部および合成ポリマー（ラテッ
クス）０〜５重量部を含有する組成物が開示されてい
る。この組成物の下塗り顔料塗被により輪転オフセット
印刷時の耐ブリスター性や表面強度、白紙光沢度等が改
善されるとしているが、フィルムトランスファー方式の
塗被装置に特有の操業性に関しては何等記載されていな
い。Further, regarding the undercoat pigment coating composition in the production of rotary offset printing coated paper in the production of double coated paper, JP-A-64-33297 discloses a heavy calcium carbonate in an amount of 70 to 100% by weight. %, 4 to 13 parts of starch derivative as an adhesive and 0 to 5 parts by weight of synthetic polymer (latex) are disclosed. It is said that the undercoat pigment coating of this composition improves the blister resistance, surface strength, and glossiness of white paper during rotary offset printing, but nothing is said about the operability peculiar to the film transfer type coating device. Not not.
【０００８】[0008]
【発明が解決しようとする課題】以上のような状況に鑑
み、本発明の課題は、フィルムトランスファー方式を使
用し、高速条件、特に１１００ｍ／分以上の高速に於て
も塗被液を塗被する製造工程で問題となる操業性の改
善、及び品質に優れたオフセット印刷用塗被紙の製造方
法及び塗被紙を提供することにある。In view of the above situation, an object of the present invention is to use a film transfer system and apply a coating liquid even under high speed conditions, particularly at a high speed of 1100 m / min or more. Another object of the present invention is to provide a method for producing coated paper for offset printing and a coated paper which are excellent in operability and which are excellent in quality in the production process.
【０００９】[0009]
【課題を解決するための手段】本発明者等は、上記の課
題について鋭意研究を重ねた結果、原紙に顔料と接着剤
とを含有する塗被液を塗被するオフセット印刷用塗被紙
の製造方法において、顔料１００部に対して重質炭酸カ
ルシウムを７０〜１００重量％、接着剤としてゲル含量
７０〜９０重量％である共重合体ラテックスを１〜１０
重量部含有し、高せん断速度（１０6 秒-1）下における
粘度を３５〜６０ｃｐｓに調製した塗被液を、フィルム
トランスファー方式の塗被装置で原紙に塗被することに
より、高速条件、特に１１００ｍ／分以上において問題
となるミストやガムアップなどを改善することができ
た。また、この塗被紙を下塗り塗被紙として、更に所望
の表面品質に調整するための上塗り塗被液を上塗り塗被
することにより、品質的に良好なオフセット印刷用塗被
紙を得ることができた。Means for Solving the Problems The inventors of the present invention have conducted extensive studies on the above-mentioned problems, and as a result, have found that a base paper is coated with a coating liquid containing a pigment and an adhesive to form an offset printing coated paper. In the production method, 70 to 100 wt% of heavy calcium carbonate and 1 to 10 of copolymer latex having a gel content of 70 to 90 wt% as an adhesive with respect to 100 parts of pigment.
By coating the base paper with a coating liquid containing a part by weight and having a viscosity at a high shear rate (10 6 sec -1 ) adjusted to 35 to 60 cps, a high speed condition, especially At 1100 m / min or more, the problematic mist and gum up could be improved. Further, this coated paper is used as an undercoat coated paper, and by further applying an overcoat coating liquid for adjusting to a desired surface quality, an offset printing coated paper of good quality can be obtained. did it.
【００１０】本発明で使用する重質炭酸カルシウムは、
顔料１００部に対して、７０〜１００重量％が必要であ
り、重質炭酸カルシウムが７０重量％より低い場合に
は、塗被液の高せん断速度下における粘度が高くなり過
ぎてミストが発生することを認めた。The heavy calcium carbonate used in the present invention is
70 to 100% by weight is required for 100 parts of the pigment, and when the heavy calcium carbonate is lower than 70% by weight, the viscosity of the coating liquid at a high shear rate becomes too high and a mist is generated. Admitted that.
【００１１】本発明で使用する共重合体ラテックスは、
ゲル含量が７０〜９０重量％であり、配合量が１〜１０
重量部を用いる。ゲル含量が７０％より低いラテックス
を含む塗被液を原紙に塗被した場合、ラテックスの機械
的安定性が劣るため互いにロール径、周速が異なるロー
ル間にかかるせん断力によりロール表面にガムアップが
発生して、操業性を低下させ、特に１１００ｍ／分以上
の高速でより顕著に現れた。またゲル含量が９０％より
高いラテックスは、一般に接着剤としての機能を果たさ
ない。配合量が１重量部より少ない場合は、ウェット強
度及びドライ強度が低い。また、１０重量部より多い場
合は、乾燥時にラテックスの収縮の影響を受けるため表
面性が劣ってしまい、更に塗被液の機械的安定性が劣
り、ガムアップが発生する。The copolymer latex used in the present invention is
The gel content is 70 to 90% by weight, and the compounding amount is 1 to 10
Parts by weight are used. When a base paper is coated with a coating liquid containing a latex with a gel content of less than 70%, the mechanical stability of the latex is inferior and the roll diameter and peripheral speed differ from each other due to the shearing force applied between the rolls to gum up the roll surface. Occurred, which deteriorated the operability, and was more remarkable especially at a high speed of 1100 m / min or more. Also, a latex having a gel content of more than 90% generally does not function as an adhesive. When the amount is less than 1 part by weight, the wet strength and dry strength are low. On the other hand, when the amount is more than 10 parts by weight, the surface property is deteriorated due to the influence of the shrinkage of the latex during drying, and the mechanical stability of the coating liquid is further deteriorated to cause gum up.
【００１２】更に本発明者等は、特に１１００ｍ／分以
上の高速操業条件下で一層顕著に現れるミスト発生の問
題を解決するため鋭意検討を重ねた結果、通常操業管理
で使用されるＢ型粘度計による粘度では特定の関係を見
い出すことはできなかったが、高せん断速度（１０6 秒
-1）下における粘度とは相関が見い出された。塗被液の
高せん断速度（１０6 秒-1）下における粘度を６０ｃｐ
ｓ以下にすることによってよりミストの発生を大幅に軽
減できることを認めた。また３５ｃｐｓより粘度が低い
と塗被液が原紙に過度にしみ込むため、塗被後の被覆性
が劣り、面状や塗被ムラが発生する。尚、本発明におい
て、高せん断速度（１０6 秒-1）下における粘度とは、
高圧毛細管粘度計（アントン・パール社製）によって測
定された値を意味する。Further, the inventors of the present invention have conducted extensive studies in order to solve the problem of mist generation, which appears more remarkably under high-speed operating conditions of 1100 m / min or more, and as a result, the B-type viscosity which is usually used in operating control is obtained. It was not able to find a particular relationship in viscosity by meter, high shear rate (106 sec
-1 ) Correlation was found with the viscosity below. Viscosity of coating liquid under high shear rate (10 6 sec -1 ) is 60 cp
It was confirmed that the occurrence of mist can be significantly reduced by setting the value to s or less. On the other hand, if the viscosity is lower than 35 cps, the coating liquid excessively penetrates into the base paper, resulting in poor coverage after coating, resulting in surface state and coating unevenness. In the present invention, the viscosity at a high shear rate (10 6 sec -1 ) means
It means a value measured by a high pressure capillary viscometer (manufactured by Anton Paar).
【００１３】本発明で使用する共重合体ラテックス以外
の接着剤として水溶性接着剤特にデンプン誘導体を５〜
３０重量部より好ましくは１５〜２３重量部配合するこ
とが望ましい。これにより、紙への剛度の付与、塗被液
の適度な粘性及び保水性等を維持することができる。５
重量部より少ない場合、塗被液の粘度が低すぎて、フィ
ルムトランスファーロール方式において、塗被量が少な
くなり、目標の塗被量が得られにくく、表面強度が劣る
傾向にある。３０重量部より多い場合、塗被液の高せん
断速度下の粘度が高すぎてミストが発生し易く、低濃度
ではミストなしで塗工可能であるが被覆性が低下する傾
向にある。特にこの塗被液を下塗り塗被し、更に上塗り
塗被液を上塗り塗被する場合には、表面強度、面状など
の点で１５〜２３重量部にするのが好ましい。As an adhesive other than the copolymer latex used in the present invention, a water-soluble adhesive, particularly a starch derivative, may be used.
It is desirable to add 15 to 23 parts by weight, preferably 30 to 30 parts by weight. As a result, it is possible to impart rigidity to the paper and maintain the appropriate viscosity and water retention of the coating liquid. 5
When the amount is less than the weight part, the viscosity of the coating liquid is too low, and the coating amount in the film transfer roll system is small, the target coating amount is difficult to be obtained, and the surface strength tends to be poor. When the amount is more than 30 parts by weight, the viscosity of the coating liquid at a high shear rate is too high and mist is likely to occur. At low concentration, coating can be performed without mist, but the coating property tends to deteriorate. In particular, when this coating liquid is applied as an undercoat and the top coating liquid is applied as an overcoat, the amount is preferably 15 to 23 parts by weight in terms of surface strength, surface state and the like.
【００１４】また、本発明においてフィルムトランスフ
ァー方式の塗被装置は、ゲートロールコータ、ブレード
あるいはロッドメタリングサイズプレスコータなどが使
用できる。ロッドメタリングサイズプレスを使用する場
合には、操業上ストリーク発生を避ける上で、表面が平
滑なロッドを用いることが望ましい。更にそのロッドの
径を３０〜５０ｍｍにすることにより、より好ましい操
業性と品質を得ることができる。直径が３０ｍｍより小
さいロッドでは、フィルムの形成能が低下し面状が劣る
傾向があり、５０ｍｍより大きいロッドでは効果が変わ
らないため、特に大きくする必要性がない。In the present invention, the film transfer type coating device may be a gate roll coater, a blade or a rod metalling size press coater. When using a rod metering size press, it is desirable to use a rod with a smooth surface in order to avoid the occurrence of streaks during operation. Further, by setting the diameter of the rod to 30 to 50 mm, more preferable operability and quality can be obtained. A rod having a diameter of less than 30 mm tends to deteriorate the film forming ability and deteriorates the surface state, and a rod having a diameter of more than 50 mm does not change the effect, so that there is no need to particularly increase the diameter.
【００１５】更に本発明においては、原紙に塗被液を少
なくとも２度塗被するオフセット印刷用塗被紙の製造方
法において、顔料１００部に対して重質炭酸カルシウム
を７０〜１００重量％、接着剤としてゲル含量７０〜９
０重量％である共重合体ラテックスを１〜１０重量部含
有し、高せん断速度（１０6 秒-1）下における粘度を３
５〜６０ｃｐｓに調製した塗被液を、フィルムトランス
ファー方式の塗被装置で原紙表面に下塗り塗被し、更に
その上に別に調製した上塗り塗被液を上塗り塗被するこ
とにより、従来の多層塗工等に比べ、生産性が高く、低
コストで且つ、単層で塗被したものより、平滑度あるい
は白紙光沢度等の表面性に優れたオフセット印刷用塗被
紙を得ることができる。Further, in the present invention, in a method for producing a coated paper for offset printing in which a coating liquid is applied at least twice to a base paper, 70 to 100% by weight of heavy calcium carbonate is adhered to 100 parts of pigment. Gel content 70 to 9 as an agent
It contains 1 to 10 parts by weight of 0% by weight of copolymer latex and has a viscosity of 3 at a high shear rate (10 6 sec -1 ).
The coating solution prepared at 5 to 60 cps is applied as an undercoat on the surface of the base paper by a film transfer type coating apparatus, and then a separately prepared topcoat coating solution is applied as an overcoat to form a conventional multilayer coating. It is possible to obtain a coated paper for offset printing, which has higher productivity, lower cost, and more excellent surface properties such as smoothness or white paper glossiness than those coated with a single layer, as compared with a work or the like.
【００１６】[0016]
【発明の実施の形態】本発明において使用する重質炭酸
カルシウム以外の顔料は、軽質炭酸カルシウム、カオリ
ン、クレー、サチンホワイト、水酸化アルミニウム、タ
ルク、酸化チタン、シリカ、プラスチックピグメント等
である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Pigments other than heavy calcium carbonate used in the present invention include light calcium carbonate, kaolin, clay, satin white, aluminum hydroxide, talc, titanium oxide, silica, plastic pigment and the like.
【００１７】本発明において使用する共重合体ラテック
スの種類は特に規定するものではないが、スチレン・ブ
タジエン系、スチレン・アクリル系、酢酸ビニル・アク
リル系、ブタジエン・メチルメタクリル系等の各種共重
合体ラテックス、あるいはこれらの各種共重合体ラテッ
クスの化学反応による変成物が使用し易い。The type of copolymer latex used in the present invention is not particularly limited, but various copolymers such as styrene / butadiene type, styrene / acrylic type, vinyl acetate / acrylic type and butadiene / methylmethacrylic type copolymers. A latex or a modified product of a chemical reaction of these various copolymer latexes is easy to use.
【００１８】また、ラテックス以外に塗被層の保水性を
維持し、原紙の内部結合強度を高めるために、酸化デン
プン、エステル化デンプン、酵素変性デンプン、エーテ
ル化デンプンやそれらをフラッシュドライして得られる
冷水可溶性デンプン等のデンプン誘導体の他、カゼイ
ン、ポリビニルアルコールなどの水溶性高分子接着剤を
１種以上併用することが好ましい。In addition to latex, in order to maintain the water retention of the coating layer and increase the internal bond strength of the base paper, oxidized starch, esterified starch, enzyme-modified starch, etherified starch, and those obtained by flash drying are used. It is preferable to use one or more kinds of water-soluble polymer adhesives such as casein and polyvinyl alcohol in addition to the starch derivative such as cold water-soluble starch.
【００１９】本発明の塗被液には分散剤、増粘剤、保水
剤、消泡剤、耐水化剤等通常の塗被紙用顔料に配合され
る各種助剤を使用しても良い。また、塗被液の固形分濃
度は、高せん断速度下の粘度が３５〜６０ｃｐｓになる
範囲であれば良く、好ましくは４０〜５５重量％であ
る。４０重量％より低い場合は、高せん断速度下の粘度
が低くなり易く、反対に５５重量％より高い場合には、
高せん断速度下の粘度が高くなるため、適度な粘度を維
持しにくい。また原紙としては、一般の印刷用塗被紙に
用いられる坪量３０〜２００ｇ／ｍ2 の原紙が好まし
く、目的により上質紙、中質紙を選択して使用する。The coating liquid of the present invention may contain various auxiliaries such as a dispersant, a thickener, a water retention agent, a defoaming agent, and a water resistant agent, which are mixed with a usual pigment for coated paper. Further, the solid content concentration of the coating liquid may be in a range such that the viscosity at a high shear rate becomes 35 to 60 cps, and preferably 40 to 55% by weight. When it is lower than 40% by weight, the viscosity under high shear rate tends to be low, and when it is higher than 55% by weight,
Since the viscosity at high shear rates becomes high, it is difficult to maintain an appropriate viscosity. The base paper is preferably a base paper having a basis weight of 30 to 200 g / m 2 used for general coated paper for printing, and high-quality paper or medium-quality paper is selected and used according to the purpose.
【００２０】尚、原紙表面上に塗被する塗被量は、原紙
の片面当たり固形分で２〜１０ｇ／ｍ2 の範囲で塗被す
るのが好ましい。２ｇ／ｍ2 より少ない量を塗被する場
合、装置上の限界から塗被液濃度を大幅に下げざるを得
ず、その結果原紙被覆性、面状が低下しやすい。１０ｇ
／ｍ2 より多い量を塗被する場合は、逆に塗被液濃度を
高くする必要があり、この場合装置上塗被量のコントロ
ールが困難になると同時に、オレンジピール等梨地状の
面荒れやロールパターンが紙表面に発生する傾向にあ
る。The coating amount on the surface of the base paper is preferably in the range of 2 to 10 g / m 2 in terms of solid content on one side of the base paper. When the coating amount is less than 2 g / m 2, the concentration of the coating liquid has to be greatly reduced due to limitations in the apparatus, and as a result, the coating properties of the base paper and the surface state are liable to be reduced. 10g
Conversely, if the amount of coating is larger than / m 2 , it is necessary to increase the concentration of the coating liquid. In this case, it becomes difficult to control the coating amount on the equipment, and at the same time, the surface roughness of the surface such as orange peel and rolls Patterns tend to develop on the paper surface.
【００２１】原紙に塗被液を塗被、乾燥後にスチールカ
レンダー、スーパーカレンダー、ソフトカレンダー処理
などの光沢仕上げなどを行っても良い。After the base paper is coated with the coating liquid and dried, gloss finishing such as steel calendering, super calendering and soft calendering may be performed.
【００２２】次に本発明において、少なくとも２度塗被
する場合、原紙表面上の下塗り塗被液に含有されるもの
は、上記記載のものが使用される。In the present invention, when the coating is applied at least twice, the above-mentioned one is used as the material contained in the undercoat coating liquid on the surface of the base paper.
【００２３】上塗り塗被液については、顔料、接着剤組
成、配合量、塗被量等は特に限定されず、一般に使用さ
れる顔料、接着剤で良い。塗被液濃度は６０〜６８％が
好ましく、上塗り塗被液の塗被量は通常片面当たり固形
分で６〜１４ｇ／ｍ2 が好ましい。また、下塗り塗被及
び上塗り塗被の回数は、それぞれ１回以上塗被しても良
い。The pigment, adhesive composition, blending amount, coating amount and the like of the top coating liquid are not particularly limited, and commonly used pigments and adhesives may be used. The concentration of the coating liquid is preferably 60 to 68%, and the coating amount of the top coating liquid is usually preferably 6 to 14 g / m 2 in terms of solid content per one surface. Further, the number of times of undercoating and topcoating may be one or more.
【００２４】上塗り塗被液を塗被後乾燥された塗被紙
は、通常のごとく最終仕上げ工程として、スーパーカレ
ンダー、ソフトカレンダー等の光沢付けをすることが好
ましい。The coated paper that has been dried after the application of the overcoat coating liquid is preferably subjected to gloss finishing by a super calender or a soft calender as a final finishing step as usual.
【００２５】[0025]
【実施例】以下に実施例を挙げて本発明を具体的に示す
が、これらによって本発明は何等制約を受けるものでは
ない。なお、例中の部及び％はそれぞれ重量部及び重量
％を示す。EXAMPLES The present invention will be specifically described below with reference to examples, but the present invention is not limited by these examples. In the examples, parts and% indicate parts by weight and% by weight, respectively.
【００２６】［実施例１］平均粒子径が０．７μｍの重
質炭酸カルシウム８０部、１．５μｍのカオリン２０部
に対して、ポリアクリル酸ソーダ系分散剤０．３部を添
加し、カウレス分散機を用いて水に分散し、接着剤とし
てゲル含量が８０％であるスチレン・ブタジエン共重合
ラテックス５部と酸化デンプン２５部を配合し、固形分
濃度５０％の塗被液を調製した。高せん断速度（１０6
秒-1）下の粘度は５４ｃｐｓであった。EXAMPLE 1 To 80 parts of calcium carbonate having an average particle diameter of 0.7 μm and 20 parts of kaolin having an average particle size of 1.5 μm, 0.3 part of a sodium polyacrylate-based dispersant was added, and Cowles was added. It was dispersed in water using a disperser, and 5 parts of a styrene / butadiene copolymer latex having a gel content of 80% and 25 parts of oxidized starch were mixed as an adhesive to prepare a coating liquid having a solid content of 50%. High shear rate (10 6
The viscosity under second -1 ) was 54 cps.
【００２７】坪量５４ｇ／ｍ2 の広葉樹晒しクラフトパ
ルプ単独配合原紙に、塗被装置として高速ゲートロール
コータを使用して塗被速度１２００ｍ／分で塗被液を、
片面当たり固形分で２ｇ／ｍ2 を両面に塗被、乾燥した
後、ソフトカレンダー処理（条件；５０℃、１００ｋｇ
／ｃｍ）した。A coating solution containing a bleached kraft pulp bleached from hardwood having a basis weight of 54 g / m 2 was coated with a coating liquid at a coating speed of 1200 m / min using a high speed gate roll coater as a coating device.
After applying 2 g / m 2 of solid content on one side to both sides and drying, soft calender treatment (conditions: 50 ° C., 100 kg
/ Cm).
【００２８】［実施例２］塗被液を調製する際、ゲル含
量が８７％のスチレン・ブタジエン共重合ラテックスを
使用した以外は、実施例１と同様に塗被紙を製造した。[Example 2] A coated paper was produced in the same manner as in Example 1 except that a styrene-butadiene copolymer latex having a gel content of 87% was used in preparing the coating liquid.
【００２９】［実施例３］塗被液を調製する際、ゲル含
量が８０％であるスチレン・ブタジエン共重合ラテック
スを７部使用し、塗被液固形分濃度を４６％とした以外
は、実施例１と同様に塗被紙を製造した。[Example 3] When a coating liquid was prepared, 7 parts of styrene-butadiene copolymer latex having a gel content of 80% was used, and the solid concentration of the coating liquid was 46%. A coated paper was produced as in Example 1.
【００３０】［実施例４］塗被装置として直径３５ｍｍ
の表面が平滑なロッドを有するロッドメタリングサイズ
プレスコータを使用し、塗被速度１４００ｍ／分で塗被
液を塗被した以外は、実施例１と同様に塗被紙を製造し
た。[Embodiment 4] A coating apparatus having a diameter of 35 mm
A coated paper was produced in the same manner as in Example 1 except that a rod metalling size press coater having a rod with a smooth surface was used and the coating liquid was applied at a coating speed of 1400 m / min.
【００３１】［比較例１］塗被液を調製する際、ゲル含
量が６０％であるスチレン・ブタジエン共重合ラテック
スを使用した以外は、実施例１と同様に塗被紙を製造し
た。[Comparative Example 1] A coated paper was produced in the same manner as in Example 1 except that a styrene-butadiene copolymer latex having a gel content of 60% was used in preparing the coating liquid.
【００３２】［比較例２］塗被液を調製する際、ゲル含
量が４０％であるスチレン・ブタジエン共重合ラテック
スを使用した以外は、実施例１と同様に塗被紙を製造し
た。[Comparative Example 2] A coated paper was produced in the same manner as in Example 1 except that a styrene-butadiene copolymer latex having a gel content of 40% was used in preparing the coating liquid.
【００３３】［比較例３］塗被液を調整する際、平均粒
子径０．７μｍの重質炭酸カルシウムを６０部、１．５
μｍのカオリンを４０部使用した以外は、実施例１と同
様に塗被紙を製造した。[Comparative Example 3] When preparing a coating liquid, 60 parts of heavy calcium carbonate having an average particle diameter of 0.7 μm and 1.5 parts of
A coated paper was produced in the same manner as in Example 1 except that 40 parts of μm kaolin was used.
【００３４】［比較例４］塗被液を調整する際、スチレ
ン・ブタジエン共重合ラテックスを１１部配合した以外
は実施例１と同様に塗被紙を製造した。[Comparative Example 4] A coated paper was produced in the same manner as in Example 1 except that 11 parts of styrene / butadiene copolymer latex was blended when the coating liquid was prepared.
【００３５】以上の結果を表１に示した。The above results are shown in Table 1.
【００３６】[0036]
【表１】 表１から明らかなように、実施例１〜４ではガムアップ
及びミストの発生がなく、高速操業性が良好で、品質的
にもチラシ、下級印刷用紙及びアンダー塗工紙として利
用できる塗工紙を得ることができた。比較例１〜４で
は、高速操業性が劣っていた。[Table 1] As is clear from Table 1, in Examples 1 to 4, there is no gum-up and mist generation, high-speed operability is good, and in terms of quality, coated paper that can be used as leaflets, lower-grade printing paper, and under-coated paper. I was able to get In Comparative Examples 1 to 4, high-speed operability was poor.
【００３７】［実施例５］平均粒子径が０．７μｍの重
質炭酸カルシウム９０部、０．５５μｍのカオリン１０
部に対して、ポリアクリル酸ソーダ系分散剤０．３部を
添加し、カウレス分散機を用いて水に分散し、接着剤と
して酸化デンプン１７部とゲル含量が８０％であるスチ
レン・ブタジエン共重合ラテックス５部を配合し、固形
分濃度５０％の下塗り塗被液を調製した。高せん断速度
（１０6 秒-1）下の粘度は５１ｃｐｓであった。Example 5 90 parts of ground calcium carbonate having an average particle size of 0.7 μm and kaolin 10 having an average particle size of 0.55 μm
0.3 parts of sodium polyacrylate-based dispersant was added to each part and dispersed in water using a Cowles disperser, and 17 parts of oxidized starch as an adhesive and a styrene-butadiene copolymer having a gel content of 80% were used. 5 parts of the polymerized latex was blended to prepare an undercoat coating liquid having a solid content concentration of 50%. The viscosity under high shear rate (10 6 sec -1 ) was 51 cps.
【００３８】更に、平均粒子径が０．５μｍの重質炭酸
カルシウム６０部、カオリン４０部に対して、ポリアク
リル酸ソーダ系分散剤０．３部を添加し、カウレス分散
機を用いて水に分散し、接着剤として酸化デンプン５部
とスチレン・ブタジエン共重合ラテックス１０部を配合
し、固形分濃度６５％の上塗り塗被液を調製した。Further, 0.3 parts of a sodium polyacrylate type dispersant was added to 60 parts of heavy calcium carbonate having an average particle diameter of 0.5 μm and 40 parts of kaolin, and the resulting mixture was added to water using a Cowles disperser. After dispersion, 5 parts of oxidized starch and 10 parts of styrene / butadiene copolymer latex were mixed as an adhesive to prepare a top coating liquid having a solid content of 65%.
【００３９】坪量５４ｇ／ｍ2 の広葉樹晒しクラフトパ
ルプ単独配合原紙に、高速ゲートロールコータで、塗被
速度１２００ｍ／分で下塗り塗被液を、片面当たり固形
分で５ｇ／ｍ2 を両面に塗被、乾燥した後、ソフトカレ
ンダー処理（条件；５０℃、１００ｋｇ／ｃｍ）した。Hardwood bleached kraft pulp alone with a basis weight of 54 g / m 2 was coated with an undercoat coating liquid at a coating speed of 1200 m / min on both sides with a solid content of 5 g / m 2 on both sides using a high speed gate roll coater. After coating and drying, a soft calendar treatment (conditions: 50 ° C., 100 kg / cm) was performed.
【００４０】更に上塗り塗被液を、高速ブレードコータ
を使用し、塗被速度１２００ｍ／分で片面当たり固形分
で８ｇ／ｍ2 を両面に塗被した。更に、１２段スーパー
カレンダーを用いて光沢仕上げを行った。 ［実施例６］下塗り塗被液を調製する際、ゲル含量が８
７％のスチレン・ブタジエン共重合ラテックスを使用し
た以外は、実施例５と同様に塗被紙を製造した。Further, the top coating liquid was applied to both surfaces at a coating speed of 1200 m / min and a solid content of 8 g / m 2 per one surface using a high speed blade coater. Furthermore, gloss finishing was performed using a 12-step super calendar. [Example 6] When preparing a base coating liquid, the gel content was 8
A coated paper was produced in the same manner as in Example 5 except that 7% styrene / butadiene copolymer latex was used.
【００４１】［実施例７］下塗り塗被液を調製する際、
ゲル含量が８０％であるスチレン・ブタジエン共重合ラ
テックスを７部使用し、塗被液固形分濃度を４６％とし
た以外は、実施例５と同様に塗被紙を製造した。[Example 7] In preparing an undercoating liquid,
A coated paper was produced in the same manner as in Example 5 except that 7 parts of a styrene / butadiene copolymer latex having a gel content of 80% was used and the solid concentration of the coating liquid was 46%.
【００４２】［実施例８］塗被装置として直径３５ｍｍ
の表面が平滑なロッドを有するロッドメタリングサイズ
プレスコータを使用し、塗被速度１４００ｍ／分で下塗
り塗被液を塗被した以外は、実施例５と同様に塗被紙を
製造した。[Embodiment 8] A coating apparatus having a diameter of 35 mm
A coated paper was produced in the same manner as in Example 5, except that a rod metalling size press coater having a rod with a smooth surface was used and the undercoat coating liquid was applied at a coating speed of 1400 m / min.
【００４３】［実施例９］下塗り塗被液を調製する際、
平均粒子径が０．７μｍの重質炭酸カルシウムを１００
部使用した以外は、実施例５と同様に塗被紙を製造し
た。[Example 9] In preparing an undercoating liquid,
100 grams of ground calcium carbonate with an average particle size of 0.7 μm
A coated paper was produced in the same manner as in Example 5 except that the parts were used.
【００４４】［比較例５］下塗り塗被液を調製する際、
ゲル含量が５０％であるスチレン・ブタジエン共重合ラ
テックスを使用した以外は、実施例５と同様に塗被紙を
製造した。[Comparative Example 5] In preparing an undercoat coating liquid,
A coated paper was produced in the same manner as in Example 5 except that a styrene / butadiene copolymer latex having a gel content of 50% was used.
【００４５】［比較例６］下塗り塗被液を調製する際、
平均粒子径１．０μｍの重質炭酸カルシウム９０部、
０．５５μｍのカオリン１０部及びリン酸エステル化デ
ンプン８．５部とゲル含量が２８％であるスチレン・ブ
タジエン共重合ラテックスを２．５部配合し、塗被液固
形分濃度を６４％にした以外は、実施例５と同様に塗被
紙を製造した。[Comparative Example 6] In preparing an undercoat coating liquid,
90 parts of heavy calcium carbonate having an average particle diameter of 1.0 μm,
10 parts of 0.55 μm kaolin and 8.5 parts of phosphoric esterified starch and 2.5 parts of styrene-butadiene copolymer latex having a gel content of 28% were blended to make the solid concentration of the coating liquid 64%. A coated paper was produced in the same manner as in Example 5 except for the above.
【００４６】［比較例７］下塗り塗被液を調製する際、
酸化デンプン１７部とゲル含量が８０％であるスチレン
・ブタジエン共重合ラテックスを０．５部使用した以外
は、実施例５と同様に塗被紙を製造した。[Comparative Example 7] In preparing an undercoat coating liquid,
A coated paper was produced in the same manner as in Example 5 except that 17 parts of oxidized starch and 0.5 part of a styrene-butadiene copolymer latex having a gel content of 80% were used.
【００４７】［比較例８］下塗り塗被液を調製する際、
酸化デンプン１７部とゲル含量が８０％であるスチレン
・ブタジエン共重合ラテックスを１１部使用した以外
は、実施例５と同様に塗被紙を製造した。[Comparative Example 8] In preparing an undercoat coating liquid,
A coated paper was produced in the same manner as in Example 5 except that 17 parts of oxidized starch and 11 parts of styrene / butadiene copolymer latex having a gel content of 80% were used.
【００４８】［比較例９］下塗り塗被液を調製する際、
平均粒子径が０．７μｍの重質炭酸カルシウムを６０
部、０．５５μｍのカオリン４０部を使用した以外は、
実施例５と同様に塗被紙を製造した。[Comparative Example 9] In preparing an undercoat coating liquid,
60 g of ground calcium carbonate with an average particle size of 0.7 μm
Parts, except that 40 parts of 0.55 μm kaolin was used,
A coated paper was produced in the same manner as in Example 5.
【００４９】以上の結果を表２に示した。The above results are shown in Table 2.
【００５０】[0050]
【表２】 表２から明らかなように、実施例５〜９では高速操業性
が良好で、品質的にも一般及び上級印刷用紙として利用
できる塗工紙を得ることができた。それに対して、比較
例５〜９では、高速操業性に劣っていたり、品質的にも
劣っているものがあった。[Table 2] As is clear from Table 2, in Examples 5 to 9, the coated papers were excellent in high-speed operability and could be used as general and advanced printing papers in terms of quality. On the other hand, in Comparative Examples 5 to 9, there were some inferior in high-speed operability and inferior in quality.
【００５１】く品質評価方法〉 （１）重質炭酸カルシウム平均粒子径 セイシン企業光透過式粒度分布測定装置ＳＨＣ５０００
を用いて、重量累積分布の５０％点を平均粒子径として
測定した。Quality evaluation method> (1) Average particle size of heavy calcium carbonate Seishin Enterprise Optical transmission type particle size distribution measuring device SHC5000
Was measured as the average particle size at the 50% point of the cumulative weight distribution.
【００５２】（２）ラテックスゲル含量 ラテックス約０．３ｇをスライドグラス上に薄く広げ、
５０℃の乾燥機でフィルムとなるまで乾燥する。ラテッ
クスフィルムを約５０ｍ１のトルエン中に一昼夜浸漬し
ガラスフィルターでろ過後、ろ液を１０５℃の乾燥機で
乾燥して、トルエン可溶分の重量を測定する。ここで得
られたトルエン可溶分の重量から、次式によりゲル含量
を算出した。(2) Latex gel content About 0.3 g of latex was spread thinly on a slide glass,
It is dried in a dryer at 50 ° C. until it becomes a film. The latex film is immersed in about 50 ml of toluene for a whole day and night, filtered through a glass filter, and then the filtrate is dried by a drier at 105 ° C. to measure the weight of toluene-soluble matter. The gel content was calculated from the weight of the toluene-soluble matter obtained here by the following formula.
【００５３】ゲル含量(%) ＝（乾燥フィルム重量−トルエン可溶
分重量）×100 ／（乾燥フィルム重量） （３）高速流動性評価 高速流動性は以下の毛細管粘度値で評価した。下塗り塗
被液を４５℃に保温し、アントンパール社製高圧毛細管
粘度計ＨＶＡ６型を使用して、直径０．４ｍｍ、管長１
０ｍｍの毛細管を用い、せん断速度１×１０6 秒-1の条
件下で測定した粘度値。Gel content (%) = (dry film weight−toluene soluble content weight) × 100 / (dry film weight) (3) High-speed fluidity evaluation High-speed fluidity was evaluated by the following capillary viscosity value. The undercoat coating liquid is kept warm at 45 ° C., using a high pressure capillary viscometer HVA6 type manufactured by Anton Paar Co., diameter 0.4 mm, pipe length 1
Viscosity value measured under conditions of a shear rate of 1 × 10 6 sec −1 using a 0 mm capillary tube.
【００５４】（４）白紙光沢度 ＪＩＳ Ｐー８１４２に従い角度７５度で測定した。(4) Glossiness of blank paper: Measured at an angle of 75 degrees in accordance with JIS P-8142.
【００５５】（５）印刷後光沢度 ＲＩーＩＩ型印刷試験機を用い、サカタインクスオフセ
ット印刷用インキ（商品名：ダイアトーンＧＳＬ紅）を
０．３５ｃｃ使用して印刷し、一昼夜放置後、７５度光
沢度を測定した。(5) Gloss after printing Using an RI-II type printing tester, 0.35 cc of ink for Sakata Inks offset printing (trade name: Diatone GSL Red) was printed, and after leaving it for one day and night, it was glossed at 75 degrees. The degree was measured.
【００５６】（６）平滑度 ＪＡＰＡＮ Ｔａｐｐｉ Ｎｏ５ 王研式平滑度試験機
で測定した。(6) Smoothness Measured with a Japan Tappi No5 Oken type smoothness tester.
【００５７】（７）印刷表面強度 ＲＩーＩＩ型印刷機（明製作所製）を用い、東洋インキ
製ＴＶー２４を使用し、回転数４０ｒｐｍ、インキ量
０．３５ｃｃ―定で印刷し、印刷面のピッキングの程度
を目視で相対評価した。(7) Printing surface strength Using an RI-II type printing machine (manufactured by Akira Seisakusho) and a TV-24 manufactured by Toyo Ink, printing was performed at a rotation speed of 40 rpm and an ink amount of 0.35 cc-constant, and the printing surface was printed. The degree of picking was evaluated relative to each other visually.
【００５８】 ◎＝全く発生しない、○＝ほとんど発生しない △＝発生する、×＝発生が著しい （８）白紙面状 白紙光沢度のむらを目視で相対評価した。⊚ = No occurrence, ◯ = Almost no occurrence, Δ = Occurrence, × = Significant occurrence (8) Blank paper surface unevenness of white paper glossiness was visually evaluated relative to each other.
【００５９】 ◎＝全くむらがない、○＝ほとんどむらがない △＝むらがある、×＝むらが著しい （９）ミスト発生評価 フィルムトランスファー方式で塗被した時のミストの発
生状況を目視で判断した。⊚ = No unevenness, ○ = Almost unevenness △ = Unevenness, × = Significant unevenness (9) Mist generation evaluation Visually judge the mist generation state when coated by the film transfer method. did.
【００６０】 ◎＝全く発生しない、○＝ほとんど発生しない △＝発生する、×＝発生が著しい （１０）ガムアップ発生評価 フィルムトランスファー方式で長時間連続して塗被した
時のガムアップの発生状況を目視で判断した。⊚ = No occurrence, ◯ = Almost no occurrence, Δ = Occurrence, × = Significant occurrence (10) Gum-up occurrence evaluation Gum-up occurrence status when continuously coated for a long time by the film transfer method. Was visually determined.
【００６１】 ◎＝２４時間以上の連続操業においてもガムアップが発
生しない ○＝２４時間の連続操業においてガムアップの発生が認
められる △＝８時間の連続操業においてガムアップの発生が認め
られる ×＝４時間の連続操業においてガムアップの発生が認め
られる◎ = Gum-up does not occur even after continuous operation for 24 hours or more ○ = Gum-up occurs during continuous operation for 24 hours △ = Gum-up occurs during continuous operation for 8 hours × = Occurrence of gum up is observed in 4 hours of continuous operation.
【００６２】[0062]
【発明の効果】フィルムトランスファー方式を使用し、
高速条件、特に１１００ｍ／分以上の高速で、塗被液を
塗被する製造工程で問題となる操業性を改善し、製品の
面状（表面被覆性、光沢ムラ）や印刷表面強度等に優れ
たオフセット印刷用塗被紙を得ることができる。According to the present invention, a film transfer method is used,
Improves operability, which is a problem in the manufacturing process of applying the coating liquid under high-speed conditions, especially at a high speed of 1100 m / min or more, and is excellent in the surface condition (surface coverage, uneven gloss) and printing surface strength of the product. It is possible to obtain a coated paper for offset printing.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 藤原 秀樹 東京都北区王子５丁目21番１号 日本製紙 株式会社中央研究所内 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Hideki Fujiwara 5-21-1, Oji, Kita-ku, Tokyo Inside Central Research Institute, Nippon Paper Industries Co., Ltd.
Claims (7)
を塗被するオフセット印刷用塗被紙の製造方法におい
て、顔料１００部に対して重質炭酸カルシウムを７０〜
１００重量％、接着剤としてゲル含量７０〜９０重量％
である共重合体ラテックスを１〜１０重量部含有し、高
せん断速度（１０6 秒-1）下における粘度を３５〜６０
ｃｐｓに調製した塗被液を、フィルムトランスファー方
式の塗被装置で原紙に塗被することを特徴とするオフセ
ット印刷用塗被紙の製造方法。1. A method for producing a coated paper for offset printing, which comprises coating a base paper with a coating liquid containing a pigment and an adhesive, and adding 100 to 70 parts of pigment to 70 parts of heavy calcium carbonate.
100% by weight, gel content 70-90% by weight as an adhesive
1 to 10 parts by weight of the copolymer latex, which has a viscosity of 35 to 60 at a high shear rate (10 6 sec -1 ).
A method for producing coated paper for offset printing, which comprises coating a base paper with a coating liquid prepared to have a cps by a film transfer type coating device.
テックスを４〜８重量部塗被液に含有することを特徴と
する請求項１に記載のオフセット印刷用塗被紙の製造方
法。2. The method for producing coated paper for offset printing according to claim 1, wherein the coating solution contains 4 to 8 parts by weight of a copolymer latex having a gel content of 70 to 90% by weight.
〜３０重量部塗被液に含有することを特徴とする請求項
１または２に記載のオフセット印刷用塗被紙の製造方
法。3. A starch derivative is further added as an adhesive.
The method for producing a coated paper for offset printing according to claim 1 or 2, wherein the coating liquid is contained in an amount of -30 parts by weight.
とを特徴とする請求項１〜３のいずれかに記載のオフセ
ット印刷用塗被紙の製造方法。4. The method for producing coated paper for offset printing according to claim 1, wherein the coating speed is 1100 m / min or more.
が、ゲートロールコータあるいは表面が平滑なロッドを
有するロッドメタリングサイズプレスコータであること
を特徴とする請求項１〜４のいずれかに記載のオフセッ
ト印刷用塗被紙の製造方法。5. The offset according to claim 1, wherein the film transfer type coating device is a gate roll coater or a rod metalling size press coater having a rod with a smooth surface. Method for producing coated paper for printing.
法で製造された塗被紙上に、更に別に調製された上塗り
塗被液を塗被することを特徴とするオフセット印刷用塗
被紙の製造方法。6. A coating for offset printing, which comprises applying a separately prepared topcoat coating liquid onto the coated paper produced by the production method according to any one of claims 1 to 5. Paper manufacturing method.
法で製造されたオフセット印刷用塗被紙。7. A coated paper for offset printing manufactured by the manufacturing method according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23337796A JP3306859B2 (en) | 1995-10-13 | 1996-09-03 | Method for producing coated paper for offset printing and coated paper |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26601195 | 1995-10-13 | ||
| JP7-266011 | 1995-10-13 | ||
| JP23337796A JP3306859B2 (en) | 1995-10-13 | 1996-09-03 | Method for producing coated paper for offset printing and coated paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09170195A true JPH09170195A (en) | 1997-06-30 |
| JP3306859B2 JP3306859B2 (en) | 2002-07-24 |
Family
ID=26531015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23337796A Expired - Fee Related JP3306859B2 (en) | 1995-10-13 | 1996-09-03 | Method for producing coated paper for offset printing and coated paper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3306859B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009116330A1 (en) | 2008-03-21 | 2009-09-24 | 日本製紙株式会社 | Method for producing coated paper |
| JP2011026734A (en) * | 2009-07-24 | 2011-02-10 | Oji Paper Co Ltd | Coated wrapping paper |
| JP2011038227A (en) * | 2009-08-18 | 2011-02-24 | Oji Paper Co Ltd | Coated wrapping paper |
| JP2015074860A (en) * | 2013-10-11 | 2015-04-20 | 王子ホールディングス株式会社 | Method of producing coated white paperboard |
-
1996
- 1996-09-03 JP JP23337796A patent/JP3306859B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009116330A1 (en) | 2008-03-21 | 2009-09-24 | 日本製紙株式会社 | Method for producing coated paper |
| JP2011026734A (en) * | 2009-07-24 | 2011-02-10 | Oji Paper Co Ltd | Coated wrapping paper |
| JP2011038227A (en) * | 2009-08-18 | 2011-02-24 | Oji Paper Co Ltd | Coated wrapping paper |
| JP2015074860A (en) * | 2013-10-11 | 2015-04-20 | 王子ホールディングス株式会社 | Method of producing coated white paperboard |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3306859B2 (en) | 2002-07-24 |
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