JPH0892894A - Method for producing bulky matte coated paper - Google Patents
Method for producing bulky matte coated paperInfo
- Publication number
- JPH0892894A JPH0892894A JP22842394A JP22842394A JPH0892894A JP H0892894 A JPH0892894 A JP H0892894A JP 22842394 A JP22842394 A JP 22842394A JP 22842394 A JP22842394 A JP 22842394A JP H0892894 A JPH0892894 A JP H0892894A
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- JP
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- Prior art keywords
- paper
- coated paper
- matte
- gloss
- producing
- 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
(57)【要約】
【目的】艶消し塗被紙の製造方法であって、特に紙腰が
強く、印刷適性に優れ、かつブランケットパイリングお
よび印刷インクの定着不良が解消された嵩高艶消し塗被
紙の製造方法を提供する。
【構成】原紙上に、顔料および接着剤を主成分とする水
性塗被組成物を塗被、乾燥後、キャレンダー仕上げする
嵩高艶消し塗被紙の製造方法であって、該原紙として、
緊度が0.7g/cm3 未満、かつベック平滑度が7秒
/10cc〜20秒/10ccである原紙を用い、水性
塗被組成物中の顔料として、全顔料に対しサチンホワイ
トが5〜25重量%、および平均粒子径が5〜15μm
である重質炭酸カルシウムが50〜95重量%含有せし
められ、さらに、仕上がり製品の緊度が1.10g/c
m3 以下となるようにキャレンダー仕上げする嵩高艶消
し塗被紙の製造方法。(57) [Summary] [Purpose] A method for producing a matte coated paper, which is particularly bulky, has excellent printability, and is free from bulky piling and defective fixing of printing ink. A method for manufacturing paper is provided. A method for producing a bulky matte-coated paper, comprising coating a base paper with an aqueous coating composition containing a pigment and an adhesive as a main component, drying and calendering the base paper.
Using a base paper having a tenacity of less than 0.7 g / cm 3 and a Beck's smoothness of 7 seconds / 10 cc to 20 seconds / 10 cc, as a pigment in the aqueous coating composition, satin white is 5 to 5 with respect to all pigments. 25% by weight, and average particle size 5 to 15 μm
50 to 95% by weight of heavy calcium carbonate is added, and the finished product has a tenacity of 1.10 g / c.
A method for producing a high-bulk matte-coated paper, which is calendered to a m 3 or less.
Description
【0001】[0001]
【産業上の利用分野】本発明は、艶消し塗被紙の製造方
法に関し、特に腰が強く、印刷適性に優れ、かつブラン
ケットパイリングおよび印刷インクの定着不良(印刷イ
ンクの裏移り)が解消された嵩高艶消し塗被紙の製造方
法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a matte coated paper, which is particularly strong and has excellent printability, and eliminates blanket piling and improper fixing of printing ink (offset of printing ink). The present invention relates to a method for producing a high-bulk matte coated paper.
【0002】[0002]
【従来の技術】近年、塗被紙は各種印刷用紙や産業用紙
として巾広い分野で多量に利用されている。このような
塗被紙は塗被される塗料の組成分(顔料や接着剤の種
類)や塗工方式、あるいは仕上げ方法等によって、いろ
いろな特徴を有する塗被紙として仕上げられる。2. Description of the Related Art In recent years, coated paper has been widely used in a wide range of fields as various printing papers and industrial papers. Such coated paper is finished as coated paper having various characteristics depending on the composition of the coating material to be coated (type of pigment or adhesive), coating method, finishing method, and the like.
【0003】例えば、キャスト方式で仕上げられる塗被
紙は高光沢と高平滑性を有し、高級感を必要とする印刷
物やファッションバック等に利用されている。また、汎
用性のある光沢を付与した塗被紙も巾広く各種の印刷物
や産業用紙等に利用されている。一方、塗被紙の中にあ
って、その表面の光沢が殆ど要求されない、所謂艶消し
塗被紙といわれる塗被紙がある。このような艶消し塗被
紙は意図的にその表面光沢を抑えているために、白紙光
沢を有する通常の塗被紙と比較し視覚に上品なイメージ
を訴える力があり、さらに印刷物にすると疲労感を覚え
ることなく眺めることができる等の理由から、その利用
範囲も高級な美術印刷、カタログ、パンフレット、カレ
ンダーや商業出版本文用紙等に亘って幅広く伸びてい
る。For example, the coated paper finished by the cast method has high gloss and high smoothness, and is used for printed matters and fashion bags that require a high-class feeling. In addition, a coated paper having a general-purpose gloss is widely used for various printed matter, industrial paper, and the like. On the other hand, among coated papers, there is coated paper called so-called matte coated paper, whose surface gloss is hardly required. Since such matte coated paper intentionally suppresses the surface gloss, it has the power to appeal visually elegant images compared to ordinary coated paper with white gloss, and when printed, it causes fatigue. Because it can be viewed without feeling, it is widely used in high-quality art printing, catalogs, pamphlets, calendars and commercial publication text sheets.
【0004】ところで、艶消し塗被紙とは、一般にその
表面の光沢度がJIS P−8142に準拠した光沢度
計で測定した場合、75°光沢値で40%以下のものを
艶消しと称している。一般に、艶消し塗被紙には2つの
タイプがあり、その1つはマット−グロス型と呼ばれ、
白紙光沢は低いが、高いインク(印刷)光沢を呈するダ
ル調の艶消し塗被紙であり、他の1つは、マット−マッ
ト型と呼ばれ、白紙光沢、インクグロスともに低調なマ
ット調艶消し塗被紙である。By the way, the matte coated paper is generally referred to as matte when the glossiness of the surface thereof is measured by a gloss meter according to JIS P-8142 and the gloss value is 75% or less at 40% or less. ing. Generally, there are two types of matte coated papers, one of which is called the mat-gloss type,
It is a dull matte coated paper that has low white paper gloss but high ink (printing) gloss. The other one is called matte-mat type, which is a matte matte that has low white paper gloss and low ink gloss. It is an erase-coated paper.
【0005】即ち、前者のダル調艶消し塗被紙の製造方
法は、白紙表面光沢を抑制して、インクグロスを発現さ
せる必要性があることから、緻密な塗被層表面を設ける
ことが重要である。そのために、サチンホワイト、カオ
リン、水酸化アルミニウム等の針状、平板状の形状でそ
の平均粒子径が約0.5〜1.5μmの比較的微粒子の
顔料を使用した塗被組成物を原紙に塗被して仕上げる、
例えば特開平4−108199号公報に提案されている
ような塗被層表面を、粗面化金属ロールを有するキャレ
ンダーで艶消し仕上げする低白紙光沢−高インクグロス
の艶消し塗被紙である。従って、白紙光沢(JIS P
−8142法)も25〜40%程度で比較的高い光沢値
を示す。That is, in the former method for producing a dull matte coated paper, it is necessary to suppress the surface gloss of the white paper and develop the ink gloss. Therefore, it is important to provide a dense coated layer surface. Is. Therefore, a coating composition using a relatively fine pigment such as satin white, kaolin, aluminum hydroxide or the like having an acicular or tabular shape and an average particle diameter of about 0.5 to 1.5 μm is used as a base paper. Finish by coating
For example, it is a low white paper gloss-high ink gloss matte coated paper in which the surface of the coated layer as proposed in JP-A-4-108199 is matte-finished with a calender having a roughened metal roll. . Therefore, white paper gloss (JIS P
-8142 method) also shows a relatively high gloss value at about 25 to 40%.
【0006】後者のマット調の艶消し塗被紙の製造方法
は、通常の印刷塗被紙の製造方法で使用される塗被紙用
顔料のうち、2〜10μm程度の比較的粗い顔料を主成
分とする水性塗被組成物を原紙に塗被、乾燥後、そのま
ま仕上げるか、あるいは、非常に軽いキャレンダー処理
を施して仕上げるものであり、白紙光沢は、3〜30%
程度で低く、所謂、低白紙光沢−低インクグロスの艶消
し塗被紙である。In the latter method for producing matte matte coated paper, a pigment having a relatively coarse size of about 2 to 10 μm is mainly used among the pigments for coated paper used in the ordinary method for producing printing coated paper. An aqueous coating composition as a component is applied to a base paper, dried and then finished as it is, or a very light calender treatment is applied to finish, and a white paper gloss is 3 to 30%.
It is a low level, so-called low white paper gloss-low ink gloss matte coated paper.
【0007】特に後者の場合は、通常の光沢を呈する塗
被紙や、前者のダル調艶消し塗被紙に比較して、粗い重
質炭酸カルシウムを顔料の主成分とし、キャレンダー加
圧処理を非常に軽く施すために、平滑性にも限度があ
り、かつ印刷適性も悪いのが実状である。さらに、この
ようなマット調艶消し塗被紙を印刷工程に掛けた場合、
平判印刷された紙は印刷後棒積みにしたときに、印刷イ
ンクが白紙部に転移して、所謂インクの裏移りが発生
し、印刷物の品質を著しく低下させる傾向がある。Particularly in the latter case, as compared with the coated paper exhibiting a normal gloss and the former dull matte coated paper, coarse heavy calcium carbonate is used as the main component of the pigment, and the calender pressure treatment is performed. Since it is applied very lightly, the smoothness is limited, and the printability is poor. Furthermore, when such matte matte coated paper is applied to the printing process,
When the plain-printed paper is stacked after printing, the printing ink is transferred to the white paper portion, so-called ink set-off occurs, and the quality of the printed matter tends to be significantly reduced.
【0008】また、印刷を終えた後には、製本工程を経
て製本化される。その場合の印刷物は、折り機や丁合機
で印刷部と白紙部とが接触することになり、印刷インク
が白紙部に転移したり、製本後の積み重ねで表紙と裏表
紙とが接触することになり、印刷インクが白紙面に転移
して、印刷物の品質低下を招くといった難点を抱えてい
るのが実状である。After printing is completed, a bookbinding process is performed to complete bookbinding. In that case, the printed part and the blank part will come into contact with the printing part and the blank part on the folding machine or the collating machine, and the printing ink will transfer to the blank part or the front cover and the back cover will contact with each other after stacking after binding. However, the actual situation is that the printing ink is transferred to a blank surface, resulting in deterioration of the quality of the printed matter.
【0009】[0009]
【発明が解決しようとする課題】本発明は、白紙光沢お
よび印刷インク光沢がともに低く抑えられ、印刷工程
上、インクの裏移りやブランケットパイリングが発生せ
ず、良好な印刷適性と印刷作業性を有し、かつ嵩高で、
紙腰のあるマット調艶消し塗被紙を得る方法を提供する
ものである。SUMMARY OF THE INVENTION According to the present invention, both white paper gloss and printing ink gloss are suppressed to a low level, ink set-off and blanket piling do not occur in the printing process, and good printability and printing workability are achieved. Possessed and bulky,
It is intended to provide a method for obtaining a matte matte coated paper having a paper luster.
【0010】[0010]
【課題を解決するための手段】本発明は、原紙上に、顔
料および接着剤を主成分とする水性塗被組成物を塗被、
乾燥後、キャレンダー仕上げする嵩高艶消し塗被紙の製
造方法において、該原紙として、緊度が0.7g/cm
3 未満、かつベック平滑度が7秒/10cc〜20秒/
10ccである原紙を用い、水性塗被組成物中の顔料と
して、全顔料に対しサチンホワイトが5〜25重量%、
および平均粒子径が5〜15μmである重質炭酸カルシ
ウムが50〜95重量%含有せしめられ、さらに仕上が
り製品の緊度が1.10g/cm3 以下となるようにキ
ャレンダー仕上げすることを特徴とする嵩高艶消し塗被
紙の製造方法である。According to the present invention, a base paper is coated with an aqueous coating composition containing a pigment and an adhesive as main components.
In the method for producing a bulky matte coated paper which is calendered after being dried, the tenacity of the base paper is 0.7 g / cm.
Less than 3 and Beck's smoothness of 7 seconds / 10 cc to 20 seconds /
Using base paper of 10 cc, as a pigment in the water-based coating composition, satin white is 5 to 25% by weight with respect to all pigments,
And 50 to 95% by weight of heavy calcium carbonate having an average particle diameter of 5 to 15 μm, and further calendered so that the finished product has a tightness of 1.10 g / cm 3 or less. This is a method for producing bulky matte coated paper.
【0011】[0011]
【作用】本発明者等は、前述したように、白紙光沢およ
び印刷インク光沢がともに低く抑えられ、また、印刷工
程上でのブランケットパイリングや印刷インクの裏移り
現象がなく、印刷適性に優れ、嵩高で紙腰のあるマット
調の艶消し塗被紙を得るべく、鋭意検討、研究を重ね
た。As described above, the inventors of the present invention can suppress both the white paper gloss and the printing ink gloss to a low level, and have no blanket piling or printing ink set-off phenomenon in the printing process, which is excellent in printability. In order to obtain a matte matte coated paper that is bulky and has a soft texture, we have earnestly studied and researched.
【0012】その結果、特定の緊度、平滑度を有する原
紙上に、サチンホワイトと特定の粒子径をもつ重質炭酸
カルシウムおよび接着剤を主成分とする水性塗被組成物
を塗被、乾燥してなる艶消し塗被紙は、白紙光沢および
印刷光沢がともに抑えられ、かつ紙腰が強く、印刷適性
に優れ、ブランケットパイリングやインク定着不良が解
消され、極めて優れた嵩高艶消し塗被紙が得られること
を見出し、遂に本発明を完成するに至ったものである。As a result, an aqueous coating composition containing satin white, heavy calcium carbonate having a specific particle size, and an adhesive as a main component is coated on a base paper having a specific strength and smoothness and dried. The matte coated paper that is formed is a very high-bulk matte coated paper that suppresses both white paper gloss and print gloss, has a strong paper elasticity, and has excellent printability, and eliminates blanket piling and defective ink fixing. The present invention has been completed, and finally the present invention has been completed.
【0013】先ず、本発明で特徴となる原紙について述
べる。通常塗被紙に使用される原紙の緊度は特に限定さ
れるものでないが、一般的には0.7〜0.95g/c
m3 程度のものが使用されている。本発明においては、
緊度が0.7g/cm3 未満、かつベック平滑度が7秒
/10cc〜20秒/10ccにある原紙を使用するこ
とにより、所望の効果を得るものである。因みに、緊度
が0.7g/cm3 以上の原紙を使用すると、最終製品
に仕上げた場合に、嵩高さ、および紙腰が低くなり好ま
しくない。なお、ベック平滑度が7秒/10cc未満の
原紙を使用すると、塗被層を設けた後の平滑性が劣り、
製品に仕上げたときにブランケットパイリングが発生
し、印刷適性が悪化する。他方、20秒/10ccを越
える原紙を用いると、塗被層を設けた後のインキグロス
が発現し易くなり、印刷適性上マット調の印刷仕上りが
難しくなり、所望の艶消し効果が得られない。したがっ
て、原紙としては上記に特定される緊度および平滑度の
両方の条件が満たされて初めて本発明が所望とする効果
が発揮されるものである。First, the base paper which is a feature of the present invention will be described. The tenacity of the base paper usually used for coated paper is not particularly limited, but is generally 0.7 to 0.95 g / c.
The thing of about m 3 is used. In the present invention,
The desired effect is obtained by using a base paper having a tenacity of less than 0.7 g / cm 3 and a Bekk smoothness of 7 seconds / 10 cc to 20 seconds / 10 cc. By the way, it is not preferable to use a base paper having a tenacity of 0.7 g / cm 3 or more, since the bulkiness and the paper stiffness of the finished product become low. When a base paper having a Beck's smoothness of less than 7 seconds / 10 cc is used, the smoothness after providing the coating layer is poor,
Blanket piling occurs when the product is finished, deteriorating printability. On the other hand, when a base paper having a duration of more than 20 seconds / 10 cc is used, the ink gloss after the coating layer is formed is likely to appear, and the matte print finish is difficult to obtain due to the printability, and the desired matte effect cannot be obtained. . Therefore, as the base paper, the effect desired by the present invention is exhibited only when both the conditions of the tightness and the smoothness specified above are satisfied.
【0014】なお、原紙の緊度を低くする方法(手段)
としては、パルプの叩解を緩くする、嵩高い填料を使用
する、抄紙機プレスでの初期脱水を少なくする、抄紙機
キャレンダーの圧を軽減する、あるいはパルプ繊維の選
択(例えば、細胞膜の厚いパルプを使用)等により原紙
の緊度を調節することができる。また、原紙のベック平
滑度を調整する方法としては、パルプの叩解、原紙に内
添する填料の種類や量の調節、抄紙機キャレンダー圧の
調節等により調整することができる。これら、原紙の緊
度と平滑度は同一の方法でかつ数種類の要件により調整
が可能なので、バランスが取りやすく、最終製品の品質
仕様を勘案して、上記手段の1つ、または2つ以上を適
宜組合わせることにより、所望の原紙条件に調整でき
る。A method (means) for lowering the tightness of the base paper
As loosening the beating of the pulp, using bulky filler, reducing the initial dehydration in the paper machine press, reducing the pressure in the paper machine calender, or selecting pulp fibers (for example, pulp with a thick cell membrane) Can be used to adjust the tightness of the base paper. In addition, as a method of adjusting the Beck's smoothness of the base paper, it can be adjusted by beating pulp, adjusting the type and amount of the filler internally added to the base paper, adjusting the calender pressure of the paper machine, and the like. Since the tightness and smoothness of the base paper can be adjusted by the same method and according to several kinds of requirements, it is easy to balance them, and one or more of the above means can be selected in consideration of the quality specification of the final product. By properly combining, it is possible to adjust to desired base paper conditions.
【0015】次ぎに、本発明で2番目の特徴となる水性
塗被組成物について述べる。従来より、高平滑性および
高光沢を有し、印刷適性の優れた塗被紙を得る方法とし
て、サチンホワイトを配合した水性塗被組成物を原紙に
塗被して塗被紙を得る方法が知られている。しかしなが
ら、サチンホワイトは、独特の粒子形状、粒子径、配向
性に基いて高光沢を発現するために、一般的にはグロス
系の塗被紙に使用される。また、艶消し塗被紙にサチン
ホワイトを使用した例もあるが、これもマット−グロス
型のダル調艶消し塗被紙であり、製造方法も粗面化ロー
ルによる処理等を施し、光沢を抑えるものである。Next, the aqueous coating composition, which is the second feature of the present invention, will be described. Conventionally, as a method of obtaining a coated paper having high smoothness and high gloss and excellent printability, there is a method of obtaining a coated paper by coating a base paper with an aqueous coating composition containing satin white. Are known. However, Satin White is generally used for gloss-type coated paper because it exhibits high gloss based on its unique particle shape, particle size, and orientation. There is also an example where satin white is used for the matte coated paper, but this is also a matte-gloss type dull tone matte coated paper, and the manufacturing method is also treated with a roughening roll to improve the gloss. It is to suppress.
【0016】本発明者等は、サチンホワイトの独特の粒
子形状、粒子径、配向性等の特性に着目し、さらに、特
定の粒子径をもつ炭酸カルシウムと組合わすことによ
り、白紙光沢および印刷光沢がともに低い、高品質のマ
ット調艶消し塗被紙が得られることを見出したのであ
る。The present inventors have paid attention to the characteristics such as the unique particle shape, particle diameter, and orientation of Sachin White, and by combining it with calcium carbonate having a specific particle diameter, white paper gloss and printing gloss It was found that a high quality matte matte coated paper having a low both is obtained.
【0017】即ち、サチンホワイトがその特性として有
する、嵩高い塗被層の形成能、および高い吸油性能に着
目して種々実験を重ねたところ、極めて優れた効果を発
揮できることが分かった。ところが、一方で上記の如き
サチンホワイトは、独特の粒子形状、粒子径、配向性向
等に基いて、光沢が高くなりすぎる難点があり、そのま
まの適用は困難であることが分かり、さらに検討を重ね
た。その結果、光沢を抑えることのできる、特定の粒子
径をもつ重質炭酸カルシウムと組合わすことによりマッ
ト調の艶消し塗被紙を得ることができ、光沢コントロー
ルを十分に行えることが分かり、本発明が所望とする極
めて優れたマット調艶消し塗被紙を得ることに成功し
た。That is, when various experiments were repeated focusing on the ability of satin white to form a bulky coating layer and high oil absorption performance, it was found that an extremely excellent effect could be exhibited. On the other hand, however, Satin White as described above has a drawback that the gloss becomes too high based on the unique particle shape, particle diameter, orientation tendency, etc., and it is difficult to apply it as it is, and further investigation is conducted. It was As a result, matte matte coated paper can be obtained by combining with heavy calcium carbonate having a specific particle size that can suppress gloss, and it was found that gloss control can be sufficiently performed. The present invention succeeded in obtaining the extremely excellent matte matte coated paper desired by the invention.
【0018】次に、本発明において、重要な顔料となる
特定の粒子径を有する重質炭酸カルシウムについて述べ
る。本発明における重質炭酸カルシウムとしては、その
平均粒子径がセディグラフ5000−1(島津製作所
製)で測定した値で5〜15μmのものを使用すること
が重要である。因みに、5μm未満の場合、低調な光沢
を得ることが難しい。他方、15μmを越えると、塗被
層のミクロな平滑性が損なわれ、印刷適性が悪化し、さ
らにブランケットパイリングや塗被層面にこすれ傷等が
発現され易くなり、好ましくない。なお、重質炭酸カル
シウムの配合量としては、全顔料に対し50重量%以上
配合されていることが重要である。因みに、50重量%
未満では、白紙光沢やインクグロスが発現され易く、所
望のマット調を有する印刷適性の優れた製品が得られ難
くなる。Next, heavy calcium carbonate having a specific particle diameter, which is an important pigment in the present invention, will be described. As the heavy calcium carbonate in the present invention, it is important to use one having an average particle diameter of 5 to 15 μm as a value measured by Sedigraph 5000-1 (manufactured by Shimadzu Corporation). Incidentally, when it is less than 5 μm, it is difficult to obtain a low gloss. On the other hand, when it exceeds 15 μm, the micro smoothness of the coating layer is impaired, the printability is deteriorated, and further, blanket piling and scratches on the surface of the coating layer are likely to occur, which is not preferable. It is important that the heavy calcium carbonate is blended in an amount of 50% by weight or more based on all pigments. By the way, 50% by weight
When the amount is less than the above, white paper gloss and ink gloss are likely to be exhibited, and it becomes difficult to obtain a product having a desired matte tone and excellent printability.
【0019】このように、特定の原紙上に塗被層用の顔
料として、光沢が出やすいサチンホワイトと相対的に光
沢の低い特定の平均粒子径を有する炭酸カルシウムを特
定量配合することにより、そのバランス効果によって、
初めて、嵩高で、優れた印刷適性を有するマット−マッ
ト調の艶消し塗被紙を得ることができた。なお、塗被層
用の顔料としては、上記のサチンホワイト、重質炭酸カ
ルシウムのほかに、本発明の目的、効果を損なわない範
囲で例えば沈降性炭酸カルシウム、タルク、水酸化アル
ミニウム、二酸化チタン、硫酸バリウム、酸化亜鉛等の
一般塗被紙用顔料として使用されている無機顔料、プラ
スチックピグメント、合成樹脂性中空ピグメント、バイ
ンダーピグメント等の有機顔料の1種以上を適宣使用す
ることができる。特に、平均粒子径が0.5〜4μmの
範囲にある沈降性炭酸カルシウムを全顔料に対し10重
量%以上配合することにより、塗被層が嵩高くなり易
く、ブランケットパイリングの解消効果に優れ、高品質
の艶消し塗被紙が得られることが分かった。As described above, as a pigment for a coating layer on a specific base paper, a specific amount of calcium carbonate having a specific average particle diameter of relatively low gloss and satin white, which has a relatively high gloss, is blended. By its balance effect,
For the first time, it was possible to obtain a matte-matte matte coated paper which is bulky and has excellent printability. As the pigment for the coating layer, in addition to the above-mentioned satin white and heavy calcium carbonate, the object of the present invention, for example, precipitating calcium carbonate, talc, aluminum hydroxide, titanium dioxide, within the range that does not impair the effect. One or more of inorganic pigments such as barium sulfate and zinc oxide, which are used as pigments for general coated paper, and organic pigments such as plastic pigments, synthetic resin hollow pigments and binder pigments can be appropriately used. In particular, by blending 10% by weight or more of the precipitated calcium carbonate having an average particle diameter in the range of 0.5 to 4 μm with respect to all pigments, the coating layer tends to be bulky, and the effect of eliminating blanket piling is excellent, It has been found that a high quality matte coated paper is obtained.
【0020】水性塗被組成物に使用される接着剤として
は、特に限定されるものではなく、通常の塗被紙製造分
野で使用される接着剤、例えば各種の澱粉類、カゼイ
ン、あるいは大豆蛋白等の蛋白質類、スチレン−ブタジ
エン共重合体ラテックス、アクリル系ラテックスやポリ
ビニルアルコール等の合成高分子類を適宣使用すること
ができるが、中でもスチレン−ブタジエン共重合体ラテ
ックスおよびアクリル系ラテックスが特に好ましい。The adhesive used in the aqueous coating composition is not particularly limited, and is an adhesive used in the general field of coated paper production, such as various starches, casein, or soybean protein. Proteins such as styrene-butadiene copolymer latex, synthetic polymers such as acrylic latex and polyvinyl alcohol can be appropriately used, and among them, styrene-butadiene copolymer latex and acrylic latex are particularly preferable. .
【0021】さらに、上記以外に各種助剤、例えば分散
剤、防腐剤、染料、保水剤、硬化剤、耐水化剤を必要に
応じて添加することもできる。In addition to the above, various auxiliaries such as a dispersant, an antiseptic, a dye, a water retention agent, a curing agent, and a water resistant agent can be added as required.
【0022】本発明では、上記の如くして得られた水性
塗被組成物(塗被液)を先に特定した原紙上に塗被する
ことによって、所望とする艶消し塗被紙を得るものであ
る。なお、この場合の塗被液の塗被量は、仕上がり製品
の品質を考慮すると、片面あたり固形分で10〜25g
/m2 の範囲で調節するのが好ましい。さらに、本発明
の方法によって得られる製品の塗被層と原紙層との構成
比率としては、塗被層/(塗被層+原紙層)=20〜3
5重量%の比率となるように構成させるのが、紙腰や印
刷適性等の品質バランス上最も好ましい範囲であること
が分かった。In the present invention, the desired matte coated paper is obtained by coating the above-specified base paper with the aqueous coating composition (coating liquid) obtained as described above. Is. In addition, the coating amount of the coating liquid in this case is 10 to 25 g in terms of solid content per one side in consideration of the quality of the finished product.
It is preferable to adjust in the range of / m 2 . Further, the composition ratio of the coating layer and the base paper layer of the product obtained by the method of the present invention is as follows: coating layer / (coating layer + base paper layer) = 20 to 3
It was found that the composition of 5% by weight is the most preferable range in terms of quality balance such as paper stiffness and printability.
【0023】また、塗被液を原紙上に塗被する方法は通
常の塗工紙分野で使用されている塗工装置、例えばエア
ーナイフコーター、各種のブレードコーター、チャンプ
レックスコーター等が適宣使用でき、特に限定されるも
のではないが、塗被層の平滑性を必要とする本発明にお
いてはブレードコーターによる塗工方法が最も適してい
る。As a method for coating the base paper with the coating liquid, a coating apparatus used in the ordinary coated paper field, for example, an air knife coater, various blade coaters, a chanplex coater, etc., is appropriately used. The coating method using a blade coater is most suitable in the present invention that requires smoothness of the coating layer, although it is not particularly limited.
【0024】上記の如き方法により得られた塗被紙は、
各種公知公用の仕上げ用加圧装置、例えばスーパーキャ
レンダー、グロスキャレンダー等に通紙して製品に仕上
げられる。本発明の場合、その目的より、平滑化し易
く、かつ光沢が発現され難いような加圧方法をとる必要
があり、硬質樹脂ロール等を装備したキャレンダーに通
紙して仕上げる方法が望ましい。そして最終製品の緊度
としては、その値が1.10g/cm3 を越えないよう
に加圧操作をすることが特に重要である。因みに1.1
0g/cm3 を越えると、紙腰が顕著に低下し、所望と
する嵩高艶消し塗被紙が得られなくなる。The coated paper obtained by the above method is
The product is finished by passing it through various publicly known and used pressurizing devices for finishing, for example, a super calender and a gloss calender. In the case of the present invention, for the purpose, it is necessary to use a pressing method that is easy to smooth and hardly develops gloss, and a method of passing through a calender equipped with a hard resin roll or the like to finish is desirable. And, as the final product, it is particularly important to carry out pressurizing operation so that the value does not exceed 1.10 g / cm 3 . By the way 1.1
If it exceeds 0 g / cm 3 , the paper stiffness is remarkably reduced, and the desired bulky matte coated paper cannot be obtained.
【0025】[0025]
【実施例】以下に、実施例を挙げて本発明をより具体的
に説明するが、勿論それらに限定されるものではない。
なお、特に断らない限り、例中の部および%は、それぞ
れ固形分換算での「重量部」および「重量%」を示す。The present invention will be described in more detail below with reference to examples, but the present invention is not limited to these examples.
Unless otherwise specified, "parts" and "%" in the examples mean "parts by weight" and "% by weight" in terms of solid content, respectively.
【0026】実施例1、実施例4〜6,比較例5〜6 顔料として、サチンホワイト10部と表2に示すような
平均粒子径を持つ重質炭酸カルシウム65部と沈降性炭
酸カルシウム25部(計100部)、および接着剤とし
て酸化澱粉5部、およびスチレン−ブタジエン共重合体
ラテックス10部からなる濃度60%の水性塗被組成物
(塗被液)を調製した。かくして得られた塗被液を緊度
0.65g/cm3 の上質原紙(米坪130g/m2 )
上に、乾燥重量が片面で15g/m2 となるようにブレ
ードコーターで両面塗被後、乾燥して塗被紙を得た。次
いで、この塗被紙を仕上げ緊度が0.95g/cm3 と
なるようにスーパーキャレンダー掛けして艶消し塗被紙
を得た。Example 1, Examples 4-6, Comparative Examples 5-6 As pigments, 10 parts of satin white, 65 parts of ground calcium carbonate having an average particle size as shown in Table 2 and 25 parts of precipitated calcium carbonate are used. (A total of 100 parts), and 5 parts of oxidized starch as an adhesive and 10 parts of a styrene-butadiene copolymer latex were used to prepare an aqueous coating composition (coating liquid) having a concentration of 60%. The coating liquid thus obtained was used as a high-quality base paper with a tightness of 0.65 g / cm 3 (130 g / m 2 of tsubo).
Both sides were coated with a blade coater so that the dry weight was 15 g / m 2 on one side, and then dried to obtain a coated paper. Then, this coated paper was supercalendered so that the finish tightness was 0.95 g / cm 3 to obtain a matte coated paper.
【0027】かくして得られた嵩高艶消し塗被紙につい
て、下記に示すような評価方法により品質評価を行い、
その結果を表3にまとめて示した。The bulky matte coated paper thus obtained was subjected to quality evaluation by the following evaluation method,
The results are summarized in Table 3.
【0028】実施例2、比較例1〜2 表1に示すような緊度(比較例1:0.60g/c
m3 、実施例2:0.68g/cm3 、比較例2:0.
80g/cm3 )を持つ上質原紙を使用した以外は実施
例1と同様にして塗被紙を得た。さらに、この塗被紙を
仕上げ緊度が表3に示すような緊度(比較例1:0.9
0g/cm3 、実施例2:0.98g/cm 3 、比較例
2:1.05g/cm3 )になるようにスーパーキャレ
ンダー掛けして嵩高艶消し塗被紙を得た。かくして得ら
れた塗被紙について、実施例1と同様にして品質評価を
行い、その結果を表3にまとめて示した。Example 2, Comparative Examples 1 and 2 Tensile strength as shown in Table 1 (Comparative Example 1: 0.60 g / c
m3Example 2: 0.68 g / cm3Comparative Example 2: 0.
80 g / cm3) With the exception of using high quality base paper
A coated paper was obtained in the same manner as in Example 1. In addition, this coated paper
The finishing tightness is as shown in Table 3 (Comparative Example 1: 0.9
0 g / cm3, Example 2: 0.98 g / cm 3, Comparative example
2: 1.05 g / cm3) Super Carre to be
To obtain a bulky matte coated paper. Thus obtained
The quality of the coated paper thus obtained was evaluated in the same manner as in Example 1.
The results were summarized in Table 3.
【0029】比較例3 顔料として、表2に示すような平均粒子径を持つ、重質
炭酸カルシウム65部と沈降性炭酸カルシウム35部、
接着剤として顔料100部に対し、酸化澱粉5部、スチ
レン−ブタジエン共重合体ラテックス10部からなる濃
度65%の塗被液を用いた以外は実施例1と同様にして
嵩高艶消し塗被紙を得た。かくして得られた塗被紙につ
いて、実施例1と同様にして品質評価を行い、その結果
を表3にまとめて示した。Comparative Example 3 As a pigment, 65 parts of ground calcium carbonate and 35 parts of precipitated calcium carbonate having an average particle size as shown in Table 2 were used.
Bulky matte coated paper was prepared in the same manner as in Example 1 except that a coating liquid having a concentration of 65% consisting of 5 parts of oxidized starch and 10 parts of styrene-butadiene copolymer latex was used as the adhesive agent. Got The coated paper thus obtained was evaluated for quality in the same manner as in Example 1, and the results are summarized in Table 3.
【0030】実施例3 顔料として、サチンホワイト15部、表2に示すような
平均粒子径を持つ重質炭酸カルシウム65部と沈降性炭
酸カルシウム20部、接着剤として酸化澱粉5部、スチ
レン−ブタジエン共重合体ラテックス10部からなる濃
度55%の塗被液を用いた以外は実施例1と同様にして
嵩高艶消し塗被紙を得た。かくして得られた塗被紙につ
いて、実施例1と同様にして品質評価を行い、その結果
を表3にまとめて示した。Example 3 As pigment, 15 parts of satin white, 65 parts of heavy calcium carbonate having an average particle diameter as shown in Table 2 and 20 parts of precipitated calcium carbonate, 5 parts of oxidized starch as an adhesive, and styrene-butadiene A bulky matte coated paper was obtained in the same manner as in Example 1 except that a coating solution containing 10 parts of the copolymer latex and having a concentration of 55% was used. The coated paper thus obtained was evaluated for quality in the same manner as in Example 1, and the results are summarized in Table 3.
【0031】比較例4 顔料として、サチンホワイト30部、表2に示すような
平均粒子径を持つ重質炭酸カルシウム65部と沈降性炭
酸カルシウム5部、接着剤として酸化澱粉5部、スチレ
ン−ブタジエン共重合体ラテックス10部からなる濃度
50%の塗被液を用いた以外は実施例1と同様にして嵩
高艶消し塗被紙を得た。かくして得られた塗被紙につい
て、実施例1と同様にして品質評価を行い、その結果を
表3にまとめて示した。Comparative Example 4 As a pigment, 30 parts of satin white, 65 parts of heavy calcium carbonate having an average particle diameter as shown in Table 2 and 5 parts of precipitated calcium carbonate, 5 parts of oxidized starch as an adhesive, and styrene-butadiene. A bulk matte coated paper was obtained in the same manner as in Example 1 except that a coating liquid containing 10 parts of a copolymer latex and having a concentration of 50% was used. The coated paper thus obtained was evaluated for quality in the same manner as in Example 1, and the results are summarized in Table 3.
【0032】実施例7〜9 緊度が0.65g/cm3 で、表1に示すような原紙米
坪(実施例7:144g/m2 、実施例8:140g/
m2 、実施例9:100g/m2 )を有する原紙を使用
し、それぞれ塗被量を片面当たり(実施例7:8g/m
2 、実施例8:10g/m2 、実施例9:30g/
m2 )とした以外は、実施例1と同様にして嵩高艶消し
塗被紙を得た。かくして得られた塗被紙について、実施
例1と同様にして品質評価を行い、得られた結果を表3
にまとめて示した。Examples 7 to 9 Raw papers having a tenacity of 0.65 g / cm 3 as shown in Table 1 (Example 7: 144 g / m 2 , Example 8: 140 g / m 2) .
m 2, Example 9: 100g / m 2) using a base paper having, per one side of the laydown, respectively (Example 7: 8 g / m
2 , Example 8:10 g / m 2 , Example 9:30 g / m 2 .
A bulky matte coated paper was obtained in the same manner as in Example 1 except that m 2 ). The coated paper thus obtained was evaluated for quality in the same manner as in Example 1, and the obtained results are shown in Table 3.
Are summarized in.
【0033】実施例10〜11、比較例7 実施例1において、最終の仕上げスーパーキャレンダー
の条件を変更して、その製品緊度をそれぞれ、実施例1
0(0.90g/cm3 )、実施例11(1.00g/
cm3 )、比較例7(1.15g/cm3 )と仕上げた
以外は、実施例1と同様にして嵩高艶消し塗被紙を得
た。かくして得られた塗被紙について、実施例1と同様
にして品質評価を行い、その結果を表3にまとめて示し
た。Examples 10 to 11 and Comparative Example 7 In Example 1, the conditions of the final super calender were changed, and the product tightness was changed to that of Example 1.
0 (0.90 g / cm 3 ), Example 11 (1.00 g / cm 3 ).
cm 3 ), Comparative Example 7 (1.15 g / cm 3 ), except that the bulky matte coated paper was obtained in the same manner as in Example 1. The coated paper thus obtained was evaluated for quality in the same manner as in Example 1, and the results are summarized in Table 3.
【0034】なお、艶消し塗被紙の品質評価を下記の方
法に基づいて行った。得られた結果を表3にまとめて示
した。The quality of the matte coated paper was evaluated according to the following method. The results obtained are summarized in Table 3.
【0035】〔評価項目および評価方法〕[Evaluation Items and Evaluation Method]
【0036】(原紙緊度)JIS−P−8124法に準
拠して米坪測定を行い、ついでJIS−P−8118法
に準拠して紙厚測定を行い、米坪を紙厚で割り、緊度
(単位:g/cm3)とした。(Raw paper tightness) The rice slab is measured according to the JIS-P-8124 method, and then the paper thickness is measured according to the JIS-P-8118 method. (Unit: g / cm 3 )
【0037】(原紙平滑度)JIS−P−8119法に
準拠し、ベック平滑度計を用いて測定した(単位:秒/
10cc)。(Smoothness of base paper) According to JIS-P-8119 method, it was measured using a Beck's smoothness meter (unit: second /
10 cc).
【0038】(顔料の平均粒子径)重力沈降法(測定器
/SEDI−GRAPH 5000−1/島津製作所
製)により粒度分布測定を行い、蓄積重量50%時の値
を平均粒子径とした。(Average particle size of pigment) The particle size distribution was measured by the gravity sedimentation method (measuring instrument / SEDI-GRAPH 5000-1 / manufactured by Shimadzu Corporation), and the value when the accumulated weight was 50% was taken as the average particle size.
【0039】(白紙光沢度)JIS−P−8142法に
準拠して、75度条件で測定した。(Glossiness of blank paper) The glossiness was measured according to JIS-P-8142 method under the condition of 75 degrees.
【0040】(白紙平滑度)スムースター平滑度計(東
英電子(株)製)を用いて測定した。値が小さい程、平
滑性が高い。(Blank paper smoothness) The smoothness was measured using a smoother smoothness meter (manufactured by Toei Denshi Co., Ltd.). The smaller the value, the higher the smoothness.
【0041】(紙腰/剛度)J.TAPPI No.40
法に準拠して、サンプルの縦目、横目での測定を行い、
得られた結果を平均して、剛度とした。(単位:mg
f)(Paper stiffness / stiffness) TAPPI No.40
In accordance with the law, we measure the sample vertically and horizontally,
The obtained results were averaged and defined as the rigidity. (Unit: mg
f)
【0042】(印刷インキグロス)ダイヤオフセット印
刷機(三菱重工製)を用いて、8000枚/時間の印刷
スピード下で4色印刷を行い、印刷物の墨単色、および
墨、藍、赤、黄の4色重ね部のインキグロスを目視で判
定した。 ◎ :インキが沈み、インキグロスがなく、非常にしっ
とりとしたマット調の印刷仕上がりであった。 ○ :インキが程よく沈み、インキグロスがなく、マッ
ト調の印刷仕上がりであった。 × :インキグロスが発現され、マット調の印刷物が得
られない。(Printing ink gloss) Using a diamond offset printing machine (manufactured by Mitsubishi Heavy Industries, Ltd.), four-color printing was performed at a printing speed of 8000 sheets / hour. The ink gloss of the 4-color overlapping portion was visually determined. ⊚: The ink did not sink and there was no ink gloss, resulting in a very moist matte print finish. ◯: The ink settled moderately, there was no ink gloss, and the matte print finish was obtained. X: Ink gloss is developed and a matte printed matter cannot be obtained.
【0043】(印刷インキの裏移り)ダイヤオフセット
印刷機(三菱重工製)を用いて、8000枚/時間の印
刷スピード下で4色印刷(墨、藍、赤、黄の4色)を行
い、印刷後、その印刷面上に約2000枚程度の印刷物
を棒積みにして、その状態で約24時間室温放置した。
その後、棒積みにしている印刷物を1枚づつめくり、4
色重ね刷りとなっている印刷部とその部分に接している
他の印刷物の裏面(白紙部)の印刷インキによる汚れ状
態(裏移り)を目視判定した。 ◎ :インキの定着が速く、白紙部へのインキ移り(汚
れ)が全く認められない。 ○ :インキの定着が良く、殆ど白紙部へのインキ移り
(汚れ)が認められない。 △ :インキの定着が悪く、白紙部へのインキ移り(汚
れ)が認められる。 × :インキの定着が非常に悪く、白紙部へのインキ移
り(汚れ)がかなり認められる。(Offset of printing ink) Using a diamond offset printing machine (manufactured by Mitsubishi Heavy Industries), four-color printing (four colors of black, indigo, red and yellow) was performed at a printing speed of 8,000 sheets / hour. After printing, about 2000 printed materials were stacked on the printing surface and left at room temperature for about 24 hours in that state.
After that, turn over the printed materials one by one in a stack, 4
The state of smearing (set-off) due to the printing ink on the back side (white paper part) of the printed part that is in color overprinting and the other printed matter in contact with that part was visually judged. ⊚: Ink fixing is fast, and no ink transfer (dirt) to the blank area is observed. ◯: The ink is fixed well, and almost no ink transfer (dirt) is observed on the white paper part. Δ: Ink fixing is poor, and ink transfer (dirt) to the blank area is observed. ×: Fixing of the ink is very poor, and ink transfer (dirt) to the white paper part is considerably recognized.
【0044】(印刷時のブランケットパイリング)ダイ
ヤオフセット印刷機(三菱重工製)を用いて、8000
枚/時間の印刷スピード下で3000枚の単色印刷を行
い、印刷完了後にブランケットおよび印刷物を目視判定
した。 ◎ :印刷終了時、ブランケット上に塗被組成物(塗被
層)の蓄積が認められない。 ○ :塗被層がブランケット上に少量づつ取られている
ものの、自動洗浄装置で対応できる程度であり、印刷お
よび印刷物には影響がでていない。 △ :塗被層がブランケット上に取られているが、印刷
物への影響は殆ど認められない。 × :塗被層がブランケット上に取られており、印刷の
途中から印刷面へ影響がでて、美麗な印刷ができない。(Blanket piling at the time of printing) 8000 using a diamond offset printing machine (manufactured by Mitsubishi Heavy Industries)
Single-color printing was performed on 3000 sheets at a printing speed of 1 sheet / hour, and the blanket and the printed matter were visually judged after the completion of printing. ⊚: No accumulation of coating composition (coating layer) on the blanket at the end of printing. ◯: Although the coating layer is taken on the blanket little by little, it can be dealt with by the automatic cleaning device and has no effect on printing and printed matter. Δ: The coating layer is taken on the blanket, but the printed matter is hardly affected. X: The coating layer is taken on the blanket, and the printing surface is affected during printing, and beautiful printing cannot be performed.
【0045】[0045]
【表1】 [Table 1]
【0046】[0046]
【表2】 [Table 2]
【0047】[0047]
【表3】 [Table 3]
【0048】[0048]
【発明の効果】表3から明らかなように、本発明におけ
る実施例で得られた艶消し塗被紙は、白紙光沢、および
印刷光沢がともに低く、特に紙腰(剛度)が強く、かつ
ブランケットパイリングやインキの裏移りが極めて少な
く、印刷適性に優れた嵩高艶消し塗被紙であった。As is apparent from Table 3, the matte coated papers obtained in the examples of the present invention have low white paper gloss and low print gloss, particularly strong paper stiffness (stiffness), and blanket. It was a bulky matte coated paper that had very little piling and ink set-off and excellent printability.
Claims (3)
る水性塗被組成物を塗被、乾燥後、キャレンダー仕上げ
する嵩高艶消し塗被紙の製造方法において、該原紙とし
て、緊度が0.7g/cm3 未満、かつベック平滑度が
7秒/10cc〜20秒/10ccである原紙を用い、
水性塗被組成物中の顔料として、全顔料に対しサチンホ
ワイトが5〜25重量%、および平均粒子径が5〜15
μmである重質炭酸カルシウムが50〜95重量%含有
せしめられ、さらに仕上がり製品の緊度が1.10g/
cm3 以下となるようにキャレンダー仕上げすることを
特徴とする嵩高艶消し塗被紙の製造方法。1. A method for producing a bulky matte coated paper, which comprises coating a base paper with an aqueous coating composition containing a pigment and an adhesive as main components, drying and calendering the base paper. Using a base paper having a degree of less than 0.7 g / cm 3 and a Bekk smoothness of 7 seconds / 10 cc to 20 seconds / 10 cc,
As pigments in the aqueous coating composition, satin white is 5 to 25% by weight, and the average particle size is 5 to 15 with respect to all pigments.
50 to 95% by weight of heavy calcium carbonate of μm is contained, and the finished product has a tenacity of 1.10 g /
A method for producing a bulky matte-coated paper, which comprises calendering so as to be not more than cm 3 .
である沈降性炭酸カルシウムが、全顔料に対し10重量
%以上含有される請求項1記載の嵩高艶消し塗被紙の製
造方法。2. A pigment having an average particle size of 0.5 to 4 μm.
The method for producing a high-bulk matte-coated paper according to claim 1, wherein the sedimentable calcium carbonate is contained in an amount of 10% by weight or more based on all pigments.
たり10〜25g/m2である請求項1または請求項2
記載の嵩高艶消し塗被紙の製造方法。3. The coating amount of the aqueous coating composition after drying is 10 to 25 g / m 2 on one side.
A method for producing the bulky matte coated paper described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6228423A JP3058021B2 (en) | 1994-09-22 | 1994-09-22 | Method for producing bulky matte coated paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6228423A JP3058021B2 (en) | 1994-09-22 | 1994-09-22 | Method for producing bulky matte coated paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0892894A true JPH0892894A (en) | 1996-04-09 |
| JP3058021B2 JP3058021B2 (en) | 2000-07-04 |
Family
ID=16876249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6228423A Expired - Fee Related JP3058021B2 (en) | 1994-09-22 | 1994-09-22 | Method for producing bulky matte coated paper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3058021B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0873875A2 (en) | 1997-04-15 | 1998-10-28 | Seiko Epson Corporation | Image display device for a tape printer |
| JP2006052517A (en) * | 2004-07-05 | 2006-02-23 | Nippon Paper Industries Co Ltd | Coated paper for gravure printing |
| JP2006057230A (en) * | 2004-07-21 | 2006-03-02 | Nippon Paper Industries Co Ltd | Coated paper for offset printing |
| JPWO2005071163A1 (en) * | 2004-01-26 | 2007-09-06 | 王子製紙株式会社 | Coated paper for printing |
| JP2012052255A (en) * | 2010-08-31 | 2012-03-15 | Nisshinbo Paper Products Inc | Matte coated paper for printing |
| JP2019214802A (en) * | 2018-06-12 | 2019-12-19 | 三菱製紙株式会社 | Uncoated paper |
-
1994
- 1994-09-22 JP JP6228423A patent/JP3058021B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0873875A2 (en) | 1997-04-15 | 1998-10-28 | Seiko Epson Corporation | Image display device for a tape printer |
| JPWO2005071163A1 (en) * | 2004-01-26 | 2007-09-06 | 王子製紙株式会社 | Coated paper for printing |
| JP4548611B2 (en) * | 2004-01-26 | 2010-09-22 | 王子製紙株式会社 | Coated paper for printing |
| JP2006052517A (en) * | 2004-07-05 | 2006-02-23 | Nippon Paper Industries Co Ltd | Coated paper for gravure printing |
| JP2006057230A (en) * | 2004-07-21 | 2006-03-02 | Nippon Paper Industries Co Ltd | Coated paper for offset printing |
| JP2012052255A (en) * | 2010-08-31 | 2012-03-15 | Nisshinbo Paper Products Inc | Matte coated paper for printing |
| JP2019214802A (en) * | 2018-06-12 | 2019-12-19 | 三菱製紙株式会社 | Uncoated paper |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3058021B2 (en) | 2000-07-04 |
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