JPH0518960B2 - - Google Patents
Info
- Publication number
- JPH0518960B2 JPH0518960B2 JP58248211A JP24821183A JPH0518960B2 JP H0518960 B2 JPH0518960 B2 JP H0518960B2 JP 58248211 A JP58248211 A JP 58248211A JP 24821183 A JP24821183 A JP 24821183A JP H0518960 B2 JPH0518960 B2 JP H0518960B2
- Authority
- JP
- Japan
- Prior art keywords
- pigment
- calcium carbonate
- water
- undercoat
- coated paper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 32
- 239000000049 pigment Substances 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 16
- 239000002245 particle Substances 0.000 claims description 12
- 239000004816 latex Substances 0.000 claims description 11
- 229920000126 latex Polymers 0.000 claims description 11
- 239000011230 binding agent Substances 0.000 claims description 9
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 9
- 239000005995 Aluminium silicate Substances 0.000 claims description 8
- 235000012211 aluminium silicate Nutrition 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 239000003973 paint Substances 0.000 description 11
- 239000000203 mixture Substances 0.000 description 7
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 4
- 229920002472 Starch Polymers 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000008107 starch Substances 0.000 description 4
- 235000019698 starch Nutrition 0.000 description 4
- 239000002174 Styrene-butadiene Substances 0.000 description 3
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 3
- 239000002270 dispersing agent Substances 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 150000003014 phosphoric acid esters Chemical class 0.000 description 3
- 239000011115 styrene butadiene Substances 0.000 description 3
- 229920003048 styrene butadiene rubber Polymers 0.000 description 3
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 description 2
- 206010016807 Fluid retention Diseases 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- -1 nitrile compounds Chemical class 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- GYCMBHHDWRMZGG-UHFFFAOYSA-N Methylacrylonitrile Chemical compound CC(=C)C#N GYCMBHHDWRMZGG-UHFFFAOYSA-N 0.000 description 1
- CNCOEDDPFOAUMB-UHFFFAOYSA-N N-Methylolacrylamide Chemical compound OCNC(=O)C=C CNCOEDDPFOAUMB-UHFFFAOYSA-N 0.000 description 1
- LCXXNKZQVOXMEH-UHFFFAOYSA-N Tetrahydrofurfuryl methacrylate Chemical compound CC(=C)C(=O)OCC1CCCO1 LCXXNKZQVOXMEH-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- WWNGFHNQODFIEX-UHFFFAOYSA-N buta-1,3-diene;methyl 2-methylprop-2-enoate;styrene Chemical compound C=CC=C.COC(=O)C(C)=C.C=CC1=CC=CC=C1 WWNGFHNQODFIEX-UHFFFAOYSA-N 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 150000001733 carboxylic acid esters Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- OMNKZBIFPJNNIO-UHFFFAOYSA-N n-(2-methyl-4-oxopentan-2-yl)prop-2-enamide Chemical compound CC(=O)CC(C)(C)NC(=O)C=C OMNKZBIFPJNNIO-UHFFFAOYSA-N 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Landscapes
- Paper (AREA)
Description
本発明は印刷適性のある顔料塗被紙の製造方法
に関するものであり、高級コーテツド紙の下塗り
に対して安価な炭酸カルシウムを多量に含有させ
た塗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、上塗り塗工後高品質の
顔料塗被紙を製造する方法に係るものである。
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。プレコート層として塗被される下塗り層は一
般にはブレードコーター、ロールコーターが適用
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
要素となつている。
下塗り塗布に使用する組成物を選択すること
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ヨンおよび下塗り紙の表面
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、下塗り層への塗料の過剰
な浸透を防ぐ様な下塗り組成物にする必要があ
る。最近では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つているが、炭酸カルシウ
ムの疎水的性能のために保水性が悪くなり、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。
上塗り塗料が下塗り層へ過度に浸透した場合、
上塗り後の製品の平滑性、白紙光沢、表面強度の
悪化をもたらす。
しかし本発明者等は、下塗り用バインダーとし
て、フイルムの水のピツクアツプ率が120％以上
の合成ラテツクスを用いれば、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層へ
の浸透を防ぎ、上塗り後の紙質の悪化を防ぐ事が
できるのを見出した。さらに検討を加えた結果下
塗り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。
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ツクスバインダ
ーの水のピツクアツプ率が100％以下であるのに
対し、スチレン−ブタジエンを主成分にするか、
又は、スチレン−メタクリル酸メチル−ブタジエ
ンを主成分とする紙塗工用ラテツクスで水のピツ
クアツプ率が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、
スチレン−ブタジエン系ラテツクスを構成する単
量体のうち、ブタジエ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ツト印刷
時に重要な性質である耐水性を与える上で極めて
有効である。
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
ラ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、ジアセトンアクリルアミドな
どのエチレン系不飽和カルボン酸アミドおよびそ
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ツクスの機械的安定性を
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ツクアツ
プ率が120％以上のラテツクスにすればその性能
はさらに向上する事がわかつた。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100：０〜50：50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90：10〜10：90の割合であれば、上
塗り後の紙質はさらに改良される事がわかつた。
本発明で特定する水のピツクアツプ率とは以下
の方法で測定されるものである。合成ラテツクス
バインダーの水溶液又は水分散液をガラスの表面
の型の中に流し込み110℃で30秒間乾燥させてフ
イルムを作る。そのフイルムを20℃の水の中に15
秒間入れてその前後の重さを測定する。水に入れ
る前の重さをAgr、入れた後の重さをBgrとする
とピツクアツプ率Ｘ（％）は次式の様に表わされ
る。
Ｘ＝Ｂ−Ａ／Ａ×100（％）
なお、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、プラスチツクピ
グメントなどを適宜配合できる。
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、染料、滑剤、耐水化剤、な
どの各種の助剤を用いることも防げるものではな
い。
本発明によつて操業性の改良、及び高品質の塗
被紙が得られるのは次の要因によると考えられ
る。
(1) 下塗り塗料の合成ラテツクスとして水のピツ
クアツプ率が120℃以上のものを使えば上塗り
塗料を塗被する場合、塗料の中の水により下塗
りの合成ラテツクスが膨潤して上塗り塗料の浸
透が妨げられ、塗被紙の平滑性、光沢度、及び
表面強度を改良する。
(2) 下塗り塗料の顔料として、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、上塗り後の塗被紙の平滑性、光沢度及び表
面強度を改良する。
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。
実施例 １〜８
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重量部によつて
水中で分散させ、固形分含有量73重量％のクレー
スラリーを調製した。このものに水のピツクアツ
プ率が○イ130％（日本合成ゴム社製JSR−Ｔ−
239）○ロ160％（住友ノーガタツク社製SNX3819）
を10重量部加え、リン酸エステル化澱粉を３重量
部加えて撹拌混合して、最終固形分64〜68重量％
の下塗り塗料を得た。この塗料を用いて基紙（坪
量77gr／m2）にブレードコーターで片面乾燥重量
で10gr／m2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15gr／m2になる様に上塗り塗
料を塗被し、乾燥後調湿して温度50℃線圧100
Kg／cm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。この場合の上塗り塗料の組成
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
エンラテツクス（日本合成ゴム社製JSR0692）10
部、強化澱粉３部で調液を行ない、最終固形分は
45％に合わせた。
この塗被紙の平滑度、光沢度、表面強度の測定
は下記の方法に従つて行ない、結果を表２に示し
た。
(1) 平滑度：スムースター平滑度
(2) 光沢度：75゜−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0.5μ0.8μの微粒
粉砕炭酸カルシウムと平均粒径が1.3μ2.8μ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
に示す様に変化させた。
次に、夫々の混合顔料をポリアクリル系分散剤
0.3重量部によつて水中で分散させ、このものに
水のピツクアツプ率が○イ90％のスチレン・ブタジ
エン系の合成ラテツクス（旭化成社製Dow1530）
10重量部加え、リン酸エステル化澱粉を３重量部
加えて撹拌混合して、最終固形分61〜65重量％の
下塗り塗料を得た。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。
The present invention relates to a method for producing pigment-coated paper suitable for printing, and uses an inexpensive paint containing a large amount of calcium carbonate as an undercoat for high-grade coated paper to achieve stable operability and drying time. The present invention relates to a method for producing high-quality pigment-coated paper after topcoating, while saving energy. 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. The undercoat layer applied as a pre-coat layer is generally applied with a blade coater or roll coater, but the properties of the paint used are an important factor in guaranteeing stable operability and paper quality of the product after topcoating. It's summery. The selection of the composition used for the basecoat application greatly influences the degree of fiber coverage obtained, as well as the binder migration and surface smoothness and porosity of the basecoat paper. Furthermore, when a top coat is applied, it is necessary to use an undercoat composition that prevents excessive penetration of the paint into the undercoat layer. Recently, since calcium carbonate is cheap, its usage ratio has been increasing.However, due to the hydrophobic properties of calcium carbonate, its water retention properties are poor, and when it is used as an undercoat pigment, it is penetration will also increase. If the top coat penetrates into the undercoat layer excessively,
This results in deterioration of the smoothness, white paper gloss, and surface strength of the product after topcoating. However, the present inventors have found that if a synthetic latex with a film water pick-up rate of 120% or more is used as a binder for the undercoat, it will prevent the water retention of the undercoat from decreasing and the topcoat from excessively penetrating into the undercoat layer. It was discovered that deterioration of paper quality after overcoating can be prevented. As a result of further investigation, the average particle size of calcium carbonate for undercoat pigments was determined.
It has been found that when the ratio of 0.3 to 1.0 μm and 1.0 to 3.0 μm and the ratio of calcium carbonate to kaolin are appropriately selected, the effect on paper quality after topcoating is further increased. Specifically, styrene is generally used as a binder in an undercoat coating composition containing a pigment and a binder, whereas many synthetic latex binders used for paper have a water pick-up rate of less than 100%. -Is butadiene the main component?
Alternatively, if you use a latex for paper coating that has styrene-methyl methacrylate-butadiene as its main component and has a water pick-up rate of 120% or more, the operability will be good, and if you apply a top coat and dry it. It has been found that a coated paper with high gloss, good smoothness, and excellent surface strength can be obtained. That is,
Among the monomers that make up the styrene-butadiene latex, butadiene provides the flexibility necessary as a pigment binder, while styrene provides the copolymer with appropriate hardness and has important properties during offset printing. It is extremely effective in providing water resistance. 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, and acrylamide. Ethylenically unsaturated carboxylic acid amides and their N-substituted compounds, such as , N-methylolacrylamide, and diacetone acrylamide, are generally used to increase adhesive strength and to improve the mechanical stability of copolymer latexes. However, it has been found that the performance can be further improved by effectively combining these monomers to create a latex with a water pick-up ratio of 120% or more. Furthermore, the pigment is mainly composed of calcium carbonate and kaolin, and the ratio thereof is 100:0 to 50:50, and the average particle size of calcium carbonate is 0.3 to less than 1.0 μ.
It was found that if the ratio of 3.0μ was 90:10 to 10:90, the paper quality after overcoating would be further improved. The water pick-up rate specified in the present invention is measured by the following method. A film is made by pouring an aqueous solution or dispersion of a synthetic latex binder into a glass mold and drying it at 110°C for 30 seconds. Place the film in water at 20℃ for 15 minutes.
Put it in for a second and measure the weight before and after. If the weight before putting it in water is Agr, and the weight after putting it in water is Bgr, the pick-up rate X (%) is expressed as the following formula. X=B-A/A×100 (%) In the present invention, pulverized calcium carbonate and kaolin are the main ingredients, but titanium dioxide, aluminum hydroxide, satin white, plastic pigments, etc. can be added as appropriate. Furthermore, dispersants commonly used in coating paints,
The use of various auxiliary agents such as flow modifiers, antifoaming agents, dyes, lubricants, and waterproofing agents cannot be prevented. The improvement in operability and the production of coated paper of high quality by the present invention are believed to be due to the following factors. (1) If a synthetic latex with a water pick-up rate of 120°C or higher is used as an undercoat, when a topcoat is applied, the water in the paint will swell the synthetic latex of the undercoat and prevent the penetration of the topcoat. improves the smoothness, gloss, and surface strength of coated paper. (2) As a pigment for undercoat paint, the average particle size is 0.3~
When calcium carbonate of less than 1.0μ and calcium carbonate and kaolin of 1.0 to 3.0μ are used in a proper mixture, the particles are effectively filled together, preventing appropriate penetration of the topcoat paint and suppressing water absorption, so it can be used after the topcoat. Improve the smoothness, gloss and surface strength of coated paper. The present invention will be specifically explained below with reference to Examples, but is not limited thereto. Examples 1 to 8 As pigments, finely ground calcium carbonate with an average particle size of 0.5μ and 0.8μ, respectively, and an average particle size of 1.3μ,
Pulverized calcium carbonate of 2.8μ and kaolin (HT manufactured by Engelhard) with an average particle size of 0.8μ were used, and the composition ratios were varied as shown in Table 1. Each mixed pigment 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% by weight. The pick-up rate of water in this product is 130% (JSR-T- manufactured by Japan Synthetic Rubber Co., Ltd.).
239) ○Ro 160% (SNX3819 manufactured by Sumitomo Nogatatsuku Co., Ltd.)
Add 10 parts by weight of phosphoric acid ester starch, add 3 parts by weight of phosphoric acid ester starch and mix with stirring until the final solid content is 64-68% by weight.
A base coat of paint was obtained. Using this paint, coat base paper (basis weight 77gr/m 2 ) with a blade coater to a dry weight of 10gr/m 2 on one side, and after drying with an air knife to a dry weight of 15gr/m 2 on one side. After drying, apply a top coat of paint and adjust the humidity to a temperature of 50℃ and a linear pressure of 100℃.
Coated paper was prepared by supercalendering under conditions of kg/cm. In this case, the composition of the top coat is 100 parts of kaolin (Ultra White 90 manufactured by Engelhard) with an average particle size of 0.6μ, 10 parts of styrene-butadiene latex (JSR0692 manufactured by Japan Synthetic Rubber Co., Ltd.)
1 part and 3 parts of fortified starch, and the final solid content is
Adjusted to 45%. 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) Smoothness: Smoother smoothness (2) Glossiness: 75°-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 0.5μ0.8μ, calcium carbonate with an average particle size of 1.3μ2.8μ, and kaolin (HT manufactured by Engelhard) with an average particle size of 0.8μ were used as pigments. Table 1 shows the composition ratio.
The changes were made as shown. Next, each mixed pigment is mixed with a polyacrylic dispersant.
A styrene-butadiene-based synthetic latex (Dow 1530 manufactured by Asahi Kasei Corporation) is dispersed in 0.3 parts by weight in water and the pick-up rate of water is 90%.
10 parts by weight and 3 parts by weight of phosphoric acid ester starch were added and mixed with stirring to obtain an undercoat paint with a final solid content of 61 to 65% by weight. 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.
【表】【table】
【表】【table】
Claims (1)
％以上の合成ラテツクスと顔料を用いた下塗り塗
料を紙の表面に塗被した後、乾燥し、次いで該塗
被上に、顔料とバインダーを含有する上塗り塗料
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 下塗り塗料が、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ウ
ムの割合が90：10〜10：90であり、さらに該炭酸
カルシウムとカオリンの割合が100：０〜50：50
である顔料を用いる特許請求の範囲第１項記載の
顔料塗被紙の製造方法。[Claims] 1. The pick-up rate of water as a binder is 120.
% or more of synthetic latex and pigment is applied to the surface of the paper, then dried, and then a top coat containing pigment and binder is applied on top of the coating and dried. A method for producing pigment-coated paper. 2. The undercoat has an average particle size of less than 0.3 to 1.0μ, and a ratio of calcium carbonate of 1.0 to 3.0μ, in a ratio of 90:10 to 10:90, and the ratio of calcium carbonate to kaolin is 90:10 to 10:90. 100:0-50:50
A method for producing pigment-coated paper according to claim 1, using a pigment.
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 JPS60139895A (en) | 1985-07-24 |
| JPH0518960B2 true 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) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4651867B2 (en) * | 2001-06-20 | 2011-03-16 | 株式会社アルファシビルエンジニアリング | Cutting edge drilling equipment |
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 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60139895A (en) | 1985-07-24 |
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