JPS60139895A - Production of pigment coated paper - Google Patents
Production of pigment coated paperInfo
- Publication number
- JPS60139895A JPS60139895A JP24821183A JP24821183A JPS60139895A JP S60139895 A JPS60139895 A JP S60139895A JP 24821183 A JP24821183 A JP 24821183A JP 24821183 A JP24821183 A JP 24821183A JP S60139895 A JPS60139895 A JP S60139895A
- Authority
- JP
- Japan
- Prior art keywords
- coated paper
- pigment
- calcium carbonate
- binder
- paper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Paper (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
1本発!仲印刷適性のある顔料塗被紙の製造方法に関す
るもやであり、高級コーテツド紙の下塗りに対して安価
な炭酸カルシラ牟を多量に含有させた顔料を使用して安
定した操業性と、乾燥所要エネルギーの節減を行ない、
上塗シ塗工後高品質の顔料塗被紙を製造する方法に係る
ものである。[Detailed description of the invention] One shot! This is a question regarding the manufacturing method of pigment-coated paper suitable for intermediate printing, and it uses a pigment containing a large amount of inexpensive calcilyl carbonate as an undercoat for high-quality coated paper to achieve stable operability and drying requirements. save energy,
The present invention relates to a method for producing high-quality pigment-coated paper after being coated with a top coat.
顔料塗被紙の製造において、その塗工方式は益々高速化
の方向に指向されつつあり、また塗被紙に対する市場の
要求品質も多様化して来つつある。In the production of pigment-coated paper, the coating method is becoming increasingly faster, and the quality requirements of the market for coated paper are also becoming more diverse.
−プレコート層□として塗被される下塗り層線一般には
ブレードコーター、ロールコータ−が適用される事が多
いが、使用する塗料の性質が安定な操業性と上塗り後の
製品の紙質を保証する重要な要素 −となっている。- Blade coaters and roll coaters are often applied to the undercoat layer line coated as the pre-coat layer □, but it is important that the properties of the paint used ensure stable operability and the paper quality of the product after topcoating. The element is −.
下塗シ塗布に使用する組・酸物を選択することは、得ら
れる繊維カバーリングの程度、およびバインダーマイグ
レーションおよび下塗9紙の表面の滑らかさと多孔性に
大いに影響する。さらに上塗り塗料をかけた場合、下塗
シ層への塗料の過剰表浸透を防ぐ様な下塗シ組酸物にす
る必要がおる。最近で拡炭酸カルシウムが安価な為に、
その使用比率は益々高くなっているが、・炭酸カルシウ
ムの疎水的性能のために保水性が急くなり、それを下塗
り用顔料として用いた場合には、上塗り塗料の浸透も増
大する。The choice of acid compound used in the basecoat application greatly influences the degree of fiber covering obtained, as well as binder migration and surface smoothness and porosity of the basecoat paper. Furthermore, when a top coat is applied, it is necessary to use an acid compound in the undercoat to prevent excessive surface penetration of the paint into the undercoat. Recently, expanded calcium carbonate has become cheap, so
Although its usage rate is becoming higher and higher, - Calcium carbonate's hydrophobic properties result in rapid water retention, and when it is used as an undercoat pigment, the penetration of topcoat paints also increases.
上塗り塗料が下塗り層へ過度に浸透した場合、上塗シ後
の製品の平滑性、白紙光沢、表面強度の悪化をもたらす
。If the top coat permeates excessively into the undercoat layer, the smoothness, white paper gloss, and surface strength of the product after the top coat will deteriorate.
しかし本発明者等は、下塗や用ノ(インダーとして、フ
ィルムの水のピックアップ率が120チ以上の合成ラテ
ックスを用いれは、下塗り塗料の保水性のダウン、及び
上塗り塗料の過度の下塗りJ@への浸透を防ぎ、上塗り
後の紙質の悪化を防ぐ事ができるの誉見出した。さらに
検討を加えた結果下塗シ用顔料の炭酸カルシウムとして
平均粒径が0.3〜1.0μのものと1.0〜3.0μ
のものの比率及び炭酸カルシウ゛ムとカオ□リンとの比
率を適当に選んだ場合、上塗り後の紙質に与える効果は
さらに増大することを見出した。However, the inventors have found that using synthetic latex with a film water pickup rate of 120 cm or more as an undercoat or inder may reduce the water retention of the undercoat and cause excessive undercoating of the topcoat. As a result of further investigation, we found that calcium carbonate for undercoat pigments with an average particle size of 0.3 to 1.0μ could be used. .0~3.0μ
It has been found that if the ratio of calcium carbonate and kaolin is appropriately selected, the effect on paper quality after topcoating can be further increased.
具体的には、顔料とバインダーを含有する下塗り塗布組
成物のバインダーとして、一般に、紙用に使用されてい
る多くの合成ラテックスノくインダーの水のピックアッ
プ率が100チ以下であるのに対シ、スチレン−ブタジ
ェンを主成分にするか、又は、スチレン−メタクリル酸
メチル−ブタジェンを主成分とする紙塗工用ラテックス
で水のピックアップ率が120%以上のものを使えば操
業性が良好で、さらに上塗り塗料を塗被し、乾燥すれば
、光沢度が高く、平滑性の良好な表面強度の優れた塗被
紙が得られる事を見出した。すなわち、ステレンーブタ
ジエy系ラテックスを構成する単量体のうち、ブタジェ
ンは顔料結合剤として必要な可とう性を与えるものであ
り、スチレンは共重合体に適度な硬さを与えると共にオ
フセット印刷時に重要な性質である耐水性を与える上で
極めて有効でおる。Specifically, many synthetic latex binders commonly used for paper as binders in undercoat coating compositions containing pigments and binders have a water pickup rate of 100% or less; If a paper coating latex containing styrene-butadiene as the main component or styrene-methyl methacrylate-butadiene as the main component with a water pickup rate of 120% or more is used, operability is good. It has been found that by further coating the paper with a top coat and drying it, a coated paper with high gloss, good smoothness, and excellent surface strength can be obtained. In other words, among the monomers that make up the sterene-butadiene latex, butadiene provides the flexibility necessary as a pigment binder, while styrene provides the copolymer with appropriate hardness and is suitable for offset printing. It is extremely effective in imparting water resistance, which is sometimes an important property.
さらに他の単量体として、アクリロニトリルおよびメタ
クリロニトリルなどのエチレン系不飽和ニトリル化合物
、アクリル酸メチル、アクリル酸エチル、メタクリル酸
ブチル、メタクリル酸テト2ヒドロフルフリルなどのエ
チレン系不飽和カルボン酸エステル、アクリルアミド、
N−メチロールアクリルアミド、ジアセト/アクリルア
ミドなどのエチレン系不飽和カルボyaRアミドおよび
そのN置換化合物などが一般的に接着力を高めるため、
および共重合体ラテックスの機緘的安定性を向上させる
ために用いられているが、さらにそれらの単量体を有効
に組み合わせて水のピックアップ率が12(1以上のラ
テックスにすればその性能はさらに向上する事がわかっ
た。さらに顔料として炭酸カルシウムとカオリンを主体
とし、その割合が100:0〜50350でしかもその
中の炭酸カルシウムの平均粒径が0.3〜1.0μ未満
のものと1.0〜3.0μのものが90:10〜103
9Gの割合であれば、上塗り後の紙質祉さらに改良され
る事がわかった。 :
本発明で特定する水のピックアップ率と社以下の方法で
測定されるものである。合成ラテックスバインダーの水
沼液又祉水分散液をカラスの表面゛′の屋の中に流し込
み1・10℃で30秒間乾燥させてフィルムを作る。そ
のフィルムを20℃の水の中に15秒間入れその前後の
重さを測定する。水に入れる前の重さをAgr、入れた
後の慮さt−Bgrとするとピックアップ率XS)は次
式の様に表わされる。Furthermore, other monomers include ethylenically unsaturated nitrile compounds such as acrylonitrile and methacrylonitrile, ethylenically unsaturated carboxylic acid esters such as methyl acrylate, ethyl acrylate, butyl methacrylate, and tetrahydrofurfuryl methacrylate. , acrylamide,
Ethylenically unsaturated carboyaR amides and their N-substituted compounds, such as N-methylolacrylamide and diacetate/acrylamide, generally increase adhesive strength.
These monomers are used to improve the mechanical stability of copolymer latex, but if these monomers are effectively combined to create a latex with a water pickup rate of 12 (1 or more), its performance will improve. It was found that the improvement was further improved.Furthermore, when the pigment is mainly composed of calcium carbonate and kaolin, the ratio is 100:0 to 50350, and the average particle size of calcium carbonate is less than 0.3 to 1.0μ. 1.0-3.0μ is 90:10-103
It was found that with a ratio of 9G, the paper quality after overcoating was further improved. : The water pickup rate specified in the present invention is determined by the following method. A film is prepared by pouring a synthetic latex binder water dispersion into a chamber on the surface of the glass and drying it at 1.10° C. for 30 seconds. The film was placed in water at 20° C. for 15 seconds and its weight before and after was measured. If the weight before putting in water is Agr, and the weight after putting in water is t-Bgr, then the pickup rate (XS) is expressed as follows.
八
或お、本発明においては粉砕炭酸カルシウムとカオリン
が主体であるが、二酸化チタン、水酸化アルミニウム、
サチンホワイト、プラスチックピグメントなどを適宜配
合できる。8. In the present invention, the main ingredients are ground calcium carbonate and kaolin, but titanium dioxide, aluminum hydroxide,
Sachin white, plastic pigments, etc. can be added as appropriate.
更に一般的に塗被用塗料に用いられる分散剤、流動変性
剤、“□消泡剤ζ染料、滑剤、耐水化剤、などの%種の
助剤を用いる゛ことも妨げるものではない。Furthermore, there is no preclude the use of auxiliary agents such as dispersants, flow modifiers, antifoaming agents, dyes, lubricants, waterproofing agents, etc., which are generally used in paints for coating.
本発明によって操業性の改良、及び高品質の塗被紙が得
られ為の拡次の要因によると考えちれる。This is believed to be due to the improved operability and the ability to obtain coated paper of high quality according to the present invention.
(1)下塗〕塗料の合成ラテックスとして水のピックア
ップ率が126−以上のものを使えば上揄シ塗料を塗被
する場合、塗料の中の水によシ下□塗シめ合成ラテック
スが膨潤してさらなる塗料の浸透が妨けられ、塗被紙の
平滑性、光沢度、及び表面強度を改良する。(1) Undercoat] If you use a synthetic latex with a water pickup rate of 126 or higher, it will be better to use a synthetic latex. This prevents further paint penetration and improves the smoothness, gloss, and surface strength of the coated paper.
Q)下塗ル塗料の顔料として、平均粒径が0.3〜1.
0μ未満の炭酸カルシウムと1.0〜3.0μの炭酸カ
ルシウム及びカオリンを適正に混合使用すると、粒子相
互が有効に充填され、上塗り塗料の適度の浸透を防ぎ、
又水の吸収をおさえるので、上塗υ後の塗被紙の平滑性
、光沢度及び表面強度を改良する。Q) As a pigment for the undercoat paint, the average particle size is 0.3 to 1.
When calcium carbonate of less than 0 μ and calcium carbonate and kaolin of 1.0 to 3.0 μ are used in a proper mixture, the particles are effectively filled with each other, preventing appropriate penetration of the top coat,
Also, since it suppresses water absorption, it improves the smoothness, gloss and surface strength of the coated paper after topcoating.
以下実施例により本発明を具体的に説明するが、これら
に限定されるものではない。The present invention will be specifically explained below with reference to Examples, but is not limited thereto.
実施例1〜8
顔料として、平均粒径が夫々の0.5μ、■0.8μの
微粒粉砕炭酸カルシウムと平均粒径が■1.3μ、■2
.8μの粉砕炭酸カルシウムと、平均粒径0.8μの(
エンゲルハード社製HT)カオリンを使用し構成比率を
表1に示す様に変化させた。夫々の混合顔料をポリアク
リル系分散剤0.3重量部によって水中で分散させ、固
形分含有量73重址−のクレースラリーを調製した。こ
のものに水のピックアップ率が0130%(日本合成ゴ
ム社製J8R−T−239)@16(1(住友ノーガタ
ック社製8NX3819)を10重量部加え、リン酸エ
ステル化澱粉を3重量部加えて攪拌混合して、最終固形
分64〜68重itチの塗料を得た。Examples 1 to 8 As pigments, finely ground calcium carbonate with an average particle size of 0.5μ and ■0.8μ, respectively, and average particle size of ■1.3μ and ■2
.. 8μ of ground calcium carbonate and an average particle size of 0.8μ (
Kaolin (HT) manufactured by Engelhard was used and the composition ratio was changed as shown in Table 1. Each of the mixed pigments was dispersed in water using 0.3 parts by weight of a polyacrylic dispersant to prepare a clay slurry having a solid content of 73 parts by weight. To this, 10 parts by weight of water pickup rate 0130% (J8R-T-239 manufactured by Japan Synthetic Rubber Co., Ltd.) @ 16 (1 (8NX3819 manufactured by Sumitomo Naugatuck Co., Ltd.)) was added, and 3 parts by weight of phosphoric acid esterified starch were added. The mixture was stirred and mixed to obtain a paint having a final solid content of 64 to 68 weights.
この塗料を用いて基紙(坪量77grβ)にブレードコ
ーターで片面乾燥重量で10gr〜になる様に塗被し、
乾燥後エアーナイフで片面乾燥重量で15grβになる
様に塗被し、乾燥後調湿して温度50℃線圧100 K
v′cInの条件でスーパーカレンダー処理を行ない塗
被紙を作製した。この場合の上塗p塗料の組成は平均粒
径0.6μのカオリン(エンゲルハード社製ウルトラホ
ワイト90)100部、スチレン・ブタジェンラテック
ス(日本合成ゴム社製J8RO692)10部、強化澱
粉3部で調液を行ない、最終固形分は45チに合わせた
。Using this paint, coat the base paper (basis weight 77grβ) with a blade coater so that the dry weight on one side is 10g~,
After drying, coat with an air knife so that the dry weight on one side is 15grβ, and after drying, adjust the humidity and heat at 50℃ linear pressure 100K.
A coated paper was prepared by supercalendering under v'cIn conditions. The composition of the top coat P paint in this case is 100 parts of kaolin (Ultra White 90 manufactured by Engelhard Co., Ltd.) with an average particle size of 0.6μ, 10 parts of styrene-butadiene latex (J8RO692 manufactured by Japan Synthetic Rubber Co., Ltd.), and 3 parts of reinforced starch. The solution was prepared and the final solid content was adjusted to 45 cm.
この塗被紙の平滑度、光沢度、表面強度の測定は下記の
方法に従って行ない、結果を表2に示した。The smoothness, gloss, and surface strength of this coated paper were measured according to the following methods, and the results are shown in Table 2.
1)平滑度ニスムースター平滑度
2)光沢度ニア5°−75°鏡面光沢(村上色彩社製)
3)表面強度! IGTテスター
比較例1〜4
顔料として平均粒径が夫々■0.5μ■0.8μの微粒
粉砕炭酸カルシウムと平均粒径が(A11.3μ■2.
8μの炭酸カルシウムと平均粒径0.8μのカオリン(
エンゲルハード社製HT)を使用し、構成比率を表1に
示す様に変化さ誓た。1) Smoothness Nismostar smoothness 2) Glossiness near 5°-75° specular gloss (manufactured by Murakami Color Co., Ltd.)
3) Surface strength! IGT Tester Comparative Examples 1 to 4 Finely ground calcium carbonate with an average particle size of (A11.3μ■2.
Calcium carbonate of 8μ and kaolin of average particle size of 0.8μ (
HT manufactured by Engelhard Co., Ltd. was used, and the composition ratios were changed as shown in Table 1.
次に、夫々の混合顔料をボリア□クリル氷分散剤0.3
重量部によって水中で分触さ竺、このものに水のピック
アップ率が090%のスチレン・ブタジェン系の合成ラ
テックス(71!!化感社11Dow1530)10重
量部加え・ I)y竺:cxテ′イヒ沫粉を3重量部加
えて攪拌混合して、最終固形分61〜65重′jtチの
塗料を得た。この他は実施例1〜7と全く同様の方法で
実施し、結果は表2に示した。Next, each mixed pigment was mixed with Boria□Krylic ice dispersant 0.3
Add 10 parts by weight of styrene-butadiene-based synthetic latex (71!! Kakansha 11 Dow 1530) with a water pickup rate of 0.90% to this material. 3 parts by weight of Ihi powder was added and mixed with stirring to obtain a paint having a final solid content of 61 to 65 weight parts. Other than this, it was carried out in exactly the same manner as in Examples 1 to 7, and the results are shown in Table 2.
Claims (1)
インダー、とじて、水の、ピックアップ率が120%以
上の合成ラテックスを用いた塗料を紙の表面に塗被した
後、乾燥・し1.次いで該塗被紙上に1顔料とバインダ
ーを含有する。塗料を塗被して乾燥することを特徴とす
る顔料塗被紙の製造方法。 2、下、塗シ塗布組成物に於いて平均粒径0.3〜1.
0μ未満のものと、1.0〜3.0μのものとより成る
炭酸カルシ?ム9.割合。が90:10〜10:90で
委り、さらに該炭酸カルシーウ、ムとカオリンの割合力
lo o : 0〜50 : s o 7eiルtsy
prt用イル特許請求の範囲第1項記載の顔料塗被紙の
製造方法。[Claims] In a coating composition containing a pigment and a binder, 2. After coating the paper surface with a paint using a synthetic latex with a binder, binder, and water pick-up rate of 120% or more. , drying and cleaning 1. A pigment and a binder are then included on the coated paper. A method for producing pigment-coated paper, which comprises coating with paint and drying it. 2. Lower, the average particle size in the coating composition is 0.3 to 1.
Carbonated calci consisting of less than 0μ and 1.0 to 3.0μ? M9. ratio. 90:10 to 10:90, and furthermore, the ratio of calcium carbonate to kaolin is 0 to 50: 7:90 to 10:90.
A method for producing pigment-coated paper according to claim 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24821183A JPS60139895A (en) | 1983-12-27 | 1983-12-27 | Production of pigment coated paper |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24821183A JPS60139895A (en) | 1983-12-27 | 1983-12-27 | Production of pigment coated paper |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60139895A true JPS60139895A (en) | 1985-07-24 |
JPH0518960B2 JPH0518960B2 (en) | 1993-03-15 |
Family
ID=17174833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24821183A Granted JPS60139895A (en) | 1983-12-27 | 1983-12-27 | Production of pigment coated paper |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60139895A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003003790A (en) * | 2001-06-20 | 2003-01-08 | Alpha Civil Engineering:Kk | Cutting edged excavation device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53126308A (en) * | 1977-04-05 | 1978-11-04 | Asahi Dow Ltd | Paper coating composition |
JPS55152895A (en) * | 1979-05-11 | 1980-11-28 | Kanzaki Paper Mfg Co Ltd | Production of medium grade coat paper for graphic wheel |
JPS56159395A (en) * | 1980-05-14 | 1981-12-08 | Sanyo Kokusaku Pulp Co | Production of pigment coated paper |
-
1983
- 1983-12-27 JP JP24821183A patent/JPS60139895A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53126308A (en) * | 1977-04-05 | 1978-11-04 | Asahi Dow Ltd | Paper coating composition |
JPS55152895A (en) * | 1979-05-11 | 1980-11-28 | Kanzaki Paper Mfg Co Ltd | Production of medium grade coat paper for graphic wheel |
JPS56159395A (en) * | 1980-05-14 | 1981-12-08 | Sanyo Kokusaku Pulp Co | Production of pigment coated paper |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003003790A (en) * | 2001-06-20 | 2003-01-08 | Alpha Civil Engineering:Kk | Cutting edged excavation device |
Also Published As
Publication number | Publication date |
---|---|
JPH0518960B2 (en) | 1993-03-15 |
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