JP3194490B2 - Matte coated paper for gravure printing and method for producing the same - Google Patents
Matte coated paper for gravure printing and method for producing the sameInfo
- Publication number
- JP3194490B2 JP3194490B2 JP20060092A JP20060092A JP3194490B2 JP 3194490 B2 JP3194490 B2 JP 3194490B2 JP 20060092 A JP20060092 A JP 20060092A JP 20060092 A JP20060092 A JP 20060092A JP 3194490 B2 JP3194490 B2 JP 3194490B2
- Authority
- JP
- Japan
- Prior art keywords
- calcium carbonate
- coated paper
- paper
- gravure printing
- weight
- 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
Description
【０００１】[0001]
【産業上の利用分野】本発明は、グラビア印刷用艶消し
塗工紙の製造方法に関して、ミスドット率が少なく、網
点再現性に優れたグラビア印刷用艶消し塗工紙の製造方
法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing matte coated paper for gravure printing, and more particularly to a method for producing matte coated paper for gravure printing having a low misdot ratio and excellent dot reproducibility. It is.
【０００２】[0002]
【従来の技術】グラビア印刷は版の網点の面積及び深さ
を変えられることから、印刷物の色調再現性に優れてお
り、高級印刷物等に用いられている。最近の印刷用紙の
傾向として、グロス調のものからマット調のものに移行
してきている。これは、ユーザーが面のギラツキが目立
ち、文字などが読みにくいものから目に優しい面の穏や
かなものを好むようになったためと思われる。また、写
真等の絵柄部分ではより良好な印刷仕上がりの要求が高
まっている。このような状況から最近、本文の読み易さ
と絵柄の鮮明さを得る為にグラビア印刷用艶消し塗工紙
が使われるようになって来た。2. Description of the Related Art Gravure printing is capable of changing the area and depth of halftone dots on a plate, and therefore has excellent color tone reproducibility of printed matter, and is used for high quality printed matter and the like. Recently, the trend of printing paper is shifting from glossy to matte. This seems to be because users have come to prefer a surface with a noticeable glare and difficult to read characters or the like to a gentle one with a gentle surface. In addition, demands for better print finish are increasing in picture portions such as photographs. Under such circumstances, matte coated paper for gravure printing has recently come to be used in order to obtain legibility of the text and sharpness of the pattern.
【０００３】グラビア印刷は、まず版全体にインキを与
え、次にドクターで、画線部以外のインキをかきとり、
凹部にたまったインキを加圧下で紙に転移する方式であ
る。この為凹部にあるインキが紙にスムースにかつ均一
に転移するためには紙表面の平滑性が必要である。ここ
で言う平滑性とは、印圧下で圧縮された状態での平滑性
であり、いわゆる動的平滑性ともいわれるものであり、
クッション性が必要である。また、インキの転移性を良
好にするために吸油性も必要である。[0003] In gravure printing, ink is first applied to the entire plate, and then the doctor removes ink other than the image area with a doctor.
In this method, the ink accumulated in the recesses is transferred to paper under pressure. For this reason, the smoothness of the paper surface is required for smooth and uniform transfer of the ink in the concave portion to the paper. The smoothness referred to here is smoothness in a state compressed under printing pressure, and is also called so-called dynamic smoothness,
Cushioning properties are required. In addition, oil absorption is required to improve the transferability of the ink.
【０００４】これまでグラビア用艶消し塗工紙に関する
特許について、顔料処方等を特定していくつか出願され
ている（特開昭59−199897号公報、特開平１−118695号
公報）が、いずれもクッション性を出すために機械パル
プを用いた中質系原紙を使用しており、高級感のない艶
消し塗工紙であった。一方、高級感の出る晒し化学パル
プ単独の原紙では、クッション性を出せないためにミス
ドットが起こりやすく充分に満足すべきグラビア印刷用
艶消し塗工紙が存在しないのが現状である。A number of patents relating to matte coated paper for gravure have been filed so far, specifying the pigment formulation and the like (JP-A-59-199897 and JP-A-1-118695). In addition, the medium base paper using mechanical pulp was used to provide cushioning properties, and it was a matte coated paper without a high-grade feeling. On the other hand, in the case of base paper made of bleached chemical pulp alone which gives a high-grade feel, there is no matte coated paper for gravure printing which is apt to cause misdots because it cannot provide cushioning properties and is sufficiently satisfactory.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、このような
状況に鑑み、グラビア印刷用艶消し塗工紙のグラビア適
性を向上させるために塗工紙の顔料成分として特定の紡
錘形の軽質炭酸カルシウムと重質炭酸カルシウムを併用
した炭酸カルシウム70重量％以上含み、更にその混合炭
酸カルシウムの中で40重量％以上が特定の紡錘形軽質炭
酸カルシウムである塗工液をパルプ成分が晒し化学パル
プ 100重量％の原紙に塗工、乾燥し、平滑化処理するこ
とによって白紙光沢及びミスドット率が低く、白色度が
高く高級感があり、しかも原紙の不透明度が低下しても
印刷裏抜けの問題のないグラビア印刷用塗工紙を得るこ
とを見いだした。SUMMARY OF THE INVENTION In view of such circumstances, the present invention aims to improve the gravure suitability of a matte coated paper for gravure printing by using a specific spindle-shaped light calcium carbonate as a pigment component of the coated paper. The pulp component is exposed to a coating solution containing 70% by weight or more of calcium carbonate combined with heavy calcium carbonate, and more than 40% by weight of the mixed calcium carbonate is a specific spindle-shaped light calcium carbonate. Base paper is coated, dried and smoothed to reduce white paper gloss and misdot ratio, increase whiteness and have a high-grade appearance. Even if the opacity of the base paper is reduced, there is no problem of print strikethrough. It has been found that coated paper for gravure printing is obtained.
【０００６】[0006]
【課題を解決するための手段】本発明は、塗工紙の顔料
成分として長径 4.0μm 以下、短径 1.0μm 以下の紡錘
形軽質炭酸カルシウムと重質炭酸カルシウムの混合顔料
を70％重量以上含み、更にその混合炭酸カルシウムの中
で40重量％以上が紡錘形軽質炭酸カルシウムである塗工
液をパルプ成分が晒し化学パルプ 100重量％の原紙に塗
工、乾燥し、白紙光沢（ＪＩＳＰ８１４２法）が40％以
下であるように平滑化処理する事を特徴とするグラビア
印刷用艶消し塗工紙に関するものである。Means for Solving the Problems The present invention comprises, as a pigment component of coated paper, at least 70% by weight of a mixed pigment of spindle-shaped light calcium carbonate and heavy calcium carbonate having a major axis of 4.0 μm or less and a minor axis of 1.0 μm or less; Further, the pulp component is exposed to a coating liquid in which at least 40% by weight of the mixed calcium carbonate is spindle-shaped light calcium carbonate, coated on 100% by weight chemical pulp base paper, and dried, and the white paper gloss (JISP8142 method) is 40%. The present invention relates to a matte coated paper for gravure printing characterized by performing a smoothing treatment as described below.
【０００７】本発明で用いられる軽質炭酸カルシウムと
重質炭酸カルシウムの混合顔料の割合は全顔料成分の70
重量％以上、好ましくは、80重量％以上含有することが
望ましい。また、紡錘形軽質炭酸カルシウムと重質炭酸
カルシウムの混合割合は、混合物に対して紡錘形軽質炭
酸カルシウムは40重量％以上、好ましくは50重量％以上
含有するのが良い。全顔料成分に占める紡錘形軽質炭酸
カルシウムと重質炭酸カルシウムの混合顔料の割合が70
重量％に満たない場合は、ミスドット率を低く抑えるた
めに高平滑化した時、白紙光沢が高くなり艶消し面が得
られ難い。又、混合炭酸カルシウムの中の紡錘形軽質炭
酸カルシウムの割合が40重量％に満たないと不透明度等
が低下し、印刷裏抜けが問題となる。The proportion of the mixed pigment of light calcium carbonate and heavy calcium carbonate used in the present invention is 70% of the total pigment component.
It is desirable that the content be at least 80% by weight, more preferably at least 80% by weight. The mixing ratio of the spindle-shaped light calcium carbonate and the heavy calcium carbonate is preferably at least 40% by weight, more preferably at least 50% by weight, based on the mixture. The ratio of the mixed pigment of spindle-shaped light calcium carbonate and heavy calcium carbonate to the total pigment component is 70.
When the amount is less than 10% by weight, when the surface is highly smoothed in order to suppress the miss dot ratio, the gloss of the white paper increases, and it is difficult to obtain a matte surface. If the proportion of the spindle-shaped light calcium carbonate in the mixed calcium carbonate is less than 40% by weight, the opacity and the like are reduced, and print-through becomes a problem.
【０００８】更に原紙は、機械パルプを配合すると白色
度が低くなり、高級感が出なくなる問題がある。特開昭
５９−１９９８９７号公報では顔料成分として重質炭酸
カルシウムを５０重量％以上と規定しているが、高歩留
パルプを配合した原紙を使用するため、塗工層の不透明
度が低下しても印刷裏抜けの心配はないが高級感が出な
い。また、特開平−１１８６９５号公報は特定の粒径を
有する重質炭酸カルシウムとタルクの使用によりグラビ
ア印刷適性を得るものであり、又併用する軽質炭酸カル
シウムは、吸油量７０ｃｃ／ｇ以上でも形状及び粒径を
規定しないと効果が現れない。すなわち、同じ軽質炭酸
カルシウムでも柱状のものでは白紙光沢が高くなり、艶
消し塗工紙にならない。また、粒径が長径で４．０μｍ
超、短径で１．０μｍ超では不透明度が低くなり、印刷
裏抜けの問題がある。Further, the base paper has a problem that when mechanical pulp is blended, the whiteness becomes low, and the sense of quality cannot be obtained. JP-A-59-199897 specifies heavy calcium carbonate as a pigment component in an amount of 50% by weight or more. However, since base paper containing a high yield pulp is used, the opacity of a coating layer is reduced. Even though there is no worry about print strikethrough, there is no luxury. Japanese Unexamined Patent Publication (Kokai) No. Hei 1-186995 discloses that gravure printing suitability is obtained by using heavy calcium carbonate having a specific particle size and talc. If the particle size is not specified, the effect does not appear. That is, even if the same light calcium carbonate is used, the columnar one has a high glossiness of white paper, and does not become a mat coated paper. Further, the particle diameter is 4.0 μm in the long diameter.
If the diameter is too large and the diameter is over 1.0 μm, the opacity becomes low, and there is a problem of print strikethrough.
【０００９】本発明で特定化した炭酸カルシウム以外の
使用顔料としては、カオリン、クレー、サチンホワイ
ト、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、シリカ、活性白土、珪素土
等が挙げられる。The pigments other than calcium carbonate specified in the present invention include kaolin, clay, satin white, titanium oxide, aluminum hydroxide, zinc oxide, barium sulfate, calcium sulfate, silica, activated clay, silicon earth, and the like. No.
【００１０】本発明で用いられる接着剤としては、スチ
レン・ブタジエン系、スチレン・アクリル系、酢ビ・ア
クリル系、エチレン・酢ビ系、ブタジエン・メチルメタ
クリル系、酢ビ・ブチルアクリレート系等の各種共重合
体及びポリビニルアルコール、無水マレイン酸・スチレ
ン共重合体、イソブテン・無水マレイン酸共重合体、ア
クリル酸・メチルメタクリレート系共重合体等の合成系
接着剤、酸化澱粉、エーテル化澱粉、エステル化澱粉、
酵素変性澱粉やそれらをフラッシュドライして得られる
冷水可溶性澱粉、カゼイン、大豆蛋白等の天然系接着剤
などの一般に知られた接着剤が挙げられる。また、必要
に応じて、分散剤、増粘剤、保水剤、消泡剤、耐水化
剤、着色剤等、通常の塗工用顔料に配合される各種助剤
が適宜使用できる。As the adhesive used in the present invention, various adhesives such as styrene / butadiene, styrene / acrylic, vinyl acetate / acrylic, ethylene / vinyl acetate, butadiene / methyl methacrylic, and vinyl acetate / butyl acrylate can be used. Synthetic adhesives such as copolymers and polyvinyl alcohol, maleic anhydride / styrene copolymer, isobutene / maleic anhydride copolymer, acrylic acid / methyl methacrylate copolymer, oxidized starch, etherified starch, esterification starch,
Commonly known adhesives such as enzyme-modified starch and cold-water-soluble starch obtained by flash-drying them, natural adhesives such as casein, soybean protein and the like are included. If necessary, various auxiliaries to be added to ordinary coating pigments, such as a dispersant, a thickener, a water retention agent, a defoaming agent, a waterproofing agent, and a coloring agent, can be used as appropriate.
【００１１】本発明による塗工液を原紙に塗工する方法
は、特に限定されるものでなく、エアーナイフコータ
ー、ロールコーター、各種ブレードコーター、ショート
ドウェルコーター等の通常の各種塗工装置が用いられ
る。The method of applying the coating liquid according to the present invention to base paper is not particularly limited, and ordinary various coating apparatuses such as an air knife coater, a roll coater, various blade coaters, and a short dwell coater are used. Can be
【００１２】かくして、塗工液を塗工、乾燥された塗工
紙はスーパーカレンダー、ソフトカレンダー等の装置を
経て仕上げられるが白紙光沢（ＪＩＳＰ８１４２法）が
40％以下となるように軽度の処理条件で仕上げられるも
のである。The coated paper which has been coated with the coating liquid and dried is finished through a device such as a super calender, a soft calender, etc., but has a white paper gloss (JISP8142 method).
It can be finished under mild processing conditions to be 40% or less.
【００１３】[0013]
【実施例】以下に本発明の効果を実施例により説明する
が、本発明はこれにより限定されるものではない。なお
実施例中の「部」及び「％」はそれぞれ「重量部」及び
「重量％」を示す。EXAMPLES The effects of the present invention will be described below with reference to examples, but the present invention is not limited thereto. In the examples, “parts” and “%” indicate “parts by weight” and “% by weight”, respectively.
【００１４】また、実施例中における各種の試験方法
は、下記の通りである。 (1) ミスドット率：大蔵省印刷局式グラビア印刷試験機
（熊谷理機工業（株）製）を用い、絵柄として網点グラ
ビアを使用し、試験片を印刷した。発生したミスドット
の数が全網点数に占める割合をミスドット率として％で
示した。数値の小さいものほど良好である。The various test methods in the examples are as follows. (1) Misdot ratio: A test piece was printed using a dot gravure as a picture using a gravure printing tester (manufactured by Kumagaya Riki Kogyo Co., Ltd.) of the Ministry of Finance. The ratio of the number of generated misdots to the total number of halftone dots is indicated by% as the misdot ratio. The smaller the value, the better.
【００１５】(2) 白紙光沢度：ＪＩＳＰ８１４２に従い
角度75°で測定した。(2) Glossiness of blank paper: Measured at an angle of 75 ° according to JISP8142.
【００１６】(3) 白色度：ＪＩＳＰ８１２３に従いハン
ター白色度試験器で測定した。(3) Whiteness: Measured with a Hunter whiteness tester according to JISP8123.
【００１７】(4) 不透明度：ＪＩＳＰ８１３８に従いハ
ンター白色度試験器で測定した。(4) Opacity: Measured with a Hunter whiteness tester according to JISP8138.
【００１８】（実施例１）長径 1.5〜3.0 μm 、短径
0.2〜0.8 μm の紡錘形軽質炭酸カルシウム（奥多摩工
業（株）製、ＴＰ−１２１）50部と重質炭酸カルシウム
（三共製粉（株）製、エスカロン＃２０００）30部及び
カオリン（ＥＣＣ製、ベータグロス）20部を分散剤とし
てポリアクリル酸ソーダ 0.4部用いて固形分72％になる
よう水中に分散し、更に接着剤としてアルカリ感応型Ｓ
Ｂラテックス８部と酵素変性デンプン2.5部、保水剤と
してＣＭＣ 0.5部を加え耐水化剤及び剥離剤等の助剤を
添加し配合して62％濃度の塗工液を得た。(Embodiment 1) Major axis 1.5-3.0 μm, minor axis
50 parts of 0.2-0.8 μm spindle-shaped light calcium carbonate (TP-121, manufactured by Okutama Industry Co., Ltd.), 30 parts of heavy calcium carbonate (Escalon # 2000, manufactured by Sankyo Flour Milling Co., Ltd.), and kaolin (ECC, beta gloss) ) 20 parts of sodium polyacrylate was used as a dispersant and 0.4 parts of sodium polyacrylate was dispersed in water so as to have a solid content of 72%.
8 parts of B latex, 2.5 parts of enzyme-modified starch, and 0.5 parts of CMC as a water retention agent were added, and auxiliaries such as a waterproofing agent and a release agent were added and blended to obtain a coating solution having a 62% concentration.
【００１９】これをブレードコーターでパルプ成分が晒
し化学パルプ 100重量％の原紙に塗工量が両面で 24g/m
2 となるように塗工、乾燥し、更にスーパーカレンダー
処理してグラビア印刷用塗工紙を得た。得られた塗工紙
の品質評価結果を表１に記載した。The pulp component is exposed to this with a blade coater and coated on a 100% by weight chemical pulp base paper at a coating amount of 24 g / m2 on both sides.
The coated paper was dried to obtain a coated paper for gravure printing. Table 1 shows the quality evaluation results of the obtained coated paper.
【００２０】（実施例２）上記の紡錘形軽質炭酸カルシ
ウム80部とカオリン20部を用いた以外は実施例１と同様
にして塗工液を得、以下同様にしてグラビア印刷用艶消
し塗工紙を得た。(Example 2) A coating liquid was obtained in the same manner as in Example 1 except that the above-mentioned spindle-shaped light calcium carbonate (80 parts) and kaolin (20 parts) were used, and thereafter, a matte coated paper for gravure printing was obtained in the same manner. I got
【００２１】（比較例１）上記の紡錘形軽質炭酸カルシ
ウム20部と重質炭酸カルシウム40部及びカオリン40部を
用いた以外は実施例１と同様にして塗工液を得、以下同
様にしてグラビア印刷用艶消し塗工紙を得た。Comparative Example 1 A coating liquid was obtained in the same manner as in Example 1 except that 20 parts of the spindle-shaped light calcium carbonate, 40 parts of heavy calcium carbonate, and 40 parts of kaolin were used. A matte coated paper for printing was obtained.
【００２２】（比較例２）長径 1.5〜3.0 μm 、短径
0.1〜0.3 μm の柱状軽質炭酸カルシウム（奥多摩工業
（株）製、ＴＰ−１２３）50部と重質炭酸カルシウム30
部及びカオリン20部を用いた以外は実施例１と同様にし
て塗工液を得、以下同様にしてグラビア印刷用艶消し塗
工紙を得た。(Comparative Example 2) Major axis 1.5 to 3.0 μm, minor axis
50 parts of 0.1 to 0.3 μm columnar light calcium carbonate (TP-123 manufactured by Okutama Industry Co., Ltd.) and 30 parts of heavy calcium carbonate
Coating solution was obtained in the same manner as in Example 1 except that 20 parts by weight and 20 parts by weight of kaolin were used. Thereafter, a matte coated paper for gravure printing was obtained in the same manner.
【００２３】（比較例３）パルプ成分が晒し化学パルプ
75重量部と機械パルプ25重量部を配合した使用原紙を用
いた以外は、実施例１と同様にして塗工液を得、以下同
様にしてグラビア印刷用艶消し塗工紙を得た。Comparative Example 3 Chemical Pulp Exposed to Pulp Components
A coating liquid was obtained in the same manner as in Example 1 except that a base paper used in which 75 parts by weight and 25 parts by weight of mechanical pulp were blended was used, and thereafter, a matte coated paper for gravure printing was obtained.
【００２４】[0024]
【表１】 ＊使用原紙 Ａ：晒し化学パルプ単独 Ｂ：晒し化学パルプ75部、機械パルプ25部[Table 1] * Base paper used A: bleached chemical pulp alone B: bleached chemical pulp 75 parts, mechanical pulp 25 parts
【００２５】[0025]
【発明の効果】表１から明らかなように実施例１、２は
白紙光沢が低く、不透明度及び白色度も高く、優れたミ
スドット率のレベルである。それに対し比較例１は、白
紙光沢及びミスドット率が高く、不透明度に劣る。また
比較例２は白紙光沢が高く好ましくない。比較例３は、
白紙光沢、不透明度、ミスドット率に関しては問題ない
が白色度に劣り高級感が出ない。As is clear from Table 1, Examples 1 and 2 have low blank gloss, high opacity and whiteness, and have excellent levels of misdot ratio. On the other hand, Comparative Example 1 has a high white paper gloss and a high misdot ratio, and is inferior in opacity. Comparative Example 2 is not preferable because of high glossiness of white paper. Comparative Example 3
There is no problem in glossiness of white paper, opacity, and misdot ratio, but it is inferior in whiteness and does not have a high-class feeling.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 坂本 祥 山口県岩国市飯田町２−８−１ 山陽国 策パルプ株式会社生産技術研究所内 (56)参考文献 特開 平４−185798（ＪＰ，Ａ) 特開 平１−118695（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) D21H 11/00 - 27/42 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Sachi Sakamoto 2-8-1 Iida-cho, Iwakuni-shi, Yamaguchi Pref. Sanyo Kokusaku Pulp Co., Ltd. (56) References JP-A-4-185798 (JP, A JP-A-1-118695 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) D21H 11/00-27/42
Claims (2)
下、短径 1.0μm 以下の紡錘形軽質炭酸カルシウムと重
質炭酸カルシウムを混合した炭酸カルシウムを70重量％
以上含み、更にその混合炭酸カルシウムの中で40重量％
以上が紡錘形軽質炭酸カルシウムである塗工液をパルプ
成分が晒し化学パルプ 100重量％から成る原紙に塗工、
乾燥し、白紙光沢が40％以下であるように平滑化処理す
る事を特徴とするグラビア印刷用艶消し塗工紙。1. A pigment component of coated paper comprising 70% by weight of calcium carbonate obtained by mixing spindle-shaped light calcium carbonate and heavy calcium carbonate having a major axis of 4.0 μm or less and a minor axis of 1.0 μm or less.
40% by weight in the mixed calcium carbonate
The above is a spindle-shaped light calcium carbonate coating solution, which is exposed to the pulp component and coated on base paper consisting of 100% by weight of chemical pulp.
A matte coated paper for gravure printing characterized by being dried and subjected to a smoothing treatment so that the white paper gloss is 40% or less.
塗工紙の製造方法。2. The method for producing matte coated paper for gravure printing according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20060092A JP3194490B2 (en) | 1992-07-03 | 1992-07-03 | Matte coated paper for gravure printing and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20060092A JP3194490B2 (en) | 1992-07-03 | 1992-07-03 | Matte coated paper for gravure printing and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0673695A JPH0673695A (en) | 1994-03-15 |
| JP3194490B2 true JP3194490B2 (en) | 2001-07-30 |
Family
ID=16427061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20060092A Expired - Fee Related JP3194490B2 (en) | 1992-07-03 | 1992-07-03 | Matte coated paper for gravure printing and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3194490B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0902123B1 (en) * | 1997-09-12 | 2001-07-18 | Nippon Paper Industries Co., Ltd. | Process for preparing coated printing paper |
| JP2000212892A (en) * | 1999-01-14 | 2000-08-02 | Printing Bureau Ministry Of Finance Japan | Mat coated paper for gravure printing and its production |
| US7744688B2 (en) | 2002-12-27 | 2010-06-29 | Imerys Pigments, Inc. | Paper coating pigments |
| CN101541901A (en) * | 2006-10-02 | 2009-09-23 | 奥多摩工业株式会社 | Coating solution and coated paper coated with the same |
| KR100851159B1 (en) * | 2007-01-16 | 2008-08-08 | 주식회사 포스코 | System for discharging and crushing sintered ores having drop impact alleviating function |
| WO2012133088A1 (en) * | 2011-03-29 | 2012-10-04 | 日本製紙株式会社 | Coated paper for printing and method for manufacturing same |
-
1992
- 1992-07-03 JP JP20060092A patent/JP3194490B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0673695A (en) | 1994-03-15 |
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