JPH0617399A - Base paper for coated paper for printing - Google Patents

Base paper for coated paper for printing

Info

Publication number
JPH0617399A
JPH0617399A JP19464592A JP19464592A JPH0617399A JP H0617399 A JPH0617399 A JP H0617399A JP 19464592 A JP19464592 A JP 19464592A JP 19464592 A JP19464592 A JP 19464592A JP H0617399 A JPH0617399 A JP H0617399A
Authority
JP
Japan
Prior art keywords
paper
coated
pulp
pitch
base 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
Application number
JP19464592A
Other languages
Japanese (ja)
Other versions
JP2964785B2 (en
Inventor
Ryuji Ouchi
龍二 大内
Masatoshi Kako
正年 加来
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
New Oji Paper Co Ltd
Original Assignee
New Oji Paper Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=16327961&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JPH0617399(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by New Oji Paper Co Ltd filed Critical New Oji Paper Co Ltd
Priority to JP19464592A priority Critical patent/JP2964785B2/en
Publication of JPH0617399A publication Critical patent/JPH0617399A/en
Application granted granted Critical
Publication of JP2964785B2 publication Critical patent/JP2964785B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/64Paper recycling

Landscapes

  • Paper (AREA)

Abstract

PURPOSE:To obtain base paper for producing coated paper for printing, having excellent ink fixing by utilizing damaged coated paper. CONSTITUTION:A raw material for coated paper for printing comprises 3-30wt.% (absolute dry) based on total pulp component of pulp having 20-200ml (CSF) reduced freeness obtained by macerating damaged coated paper to give a pulp slurry, adding a water-soluble zirconium compound to the slurry and beating. The raw material has excellent workability of paper-making machine for base paper for coated paper and ink fixing of gravure printing.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は印刷用塗工紙のための原
紙に関し、詳しくは、セルロースパルプからなる原紙の
片面または両面に、顔料と接着剤を主成分とする塗工液
をコーターを用いて塗工してなる印刷用塗工紙に使用す
る原紙に関し、さらに詳しくは塗工原紙用抄紙機の操業
性に優れ、グラビア印刷に関してのインキ着肉性に優れ
た印刷用塗工紙を製造するための原紙に関するものであ
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a base paper for a coated paper for printing. More specifically, a coating liquid containing a pigment and an adhesive as a main component is coated on one or both sides of a base paper made of cellulose pulp. Regarding the base paper to be used as the coated paper for printing, which is coated by using the above, more specifically, a coated paper for printing that has excellent operability of the paper machine for coated base paper and excellent ink receptivity for gravure printing The present invention relates to a base paper for manufacturing.

【0002】[0002]

【従来の技術】印刷用塗工紙のための原紙(以下、単に
塗工原紙という)はリグノセルロース、特に木材チップ
を原料とするセルロースパルプから抄造されている。セ
ルロースパルプを構成するパルプは針葉樹晒クラフトパ
ルプ、広葉樹晒クラフトパルプの他、顔料と接着剤を主
成分とする塗工液をコーターを用いて塗工原紙に塗工し
た紙(以下、塗工紙という)が製品毎に決められた寸法
に断裁された後に残る断裁くずよりなる塗工損紙を再生
したパルプ、印刷適性、不透明度や経済性を改良するた
めなどに用いられる高歩留りパルプ及び古紙を原料とし
た脱墨古紙パルプである。
2. Description of the Related Art A base paper for a coated paper for printing (hereinafter, simply referred to as a coated base paper) is made from lignocellulose, particularly cellulose pulp made from wood chips. The pulp that constitutes cellulose pulp is softwood bleached kraft pulp, hardwood bleached kraft pulp, and paper coated with a coating liquid containing pigments and adhesives as the main components on a coating base paper (hereinafter, coated paper). Is used to improve the printability, printability, opacity and economic efficiency of recycled coated paper consisting of cutting waste that remains after being cut to the specified size for each product. It is a deinked waste paper pulp made from.

【0003】塗工損紙を離解したパルプ中には、顔料と
接着剤に由来する0.01〜5mm程度の大きさの粘着性
を有する白色のピッチ(主成分はラテックス、少量の炭
酸カルシウム等、以下、単に「ピッチ」という)が多数
混在し、塗工損紙を離解したパルプを含む紙料を用いて
塗工原紙を抄紙すると、抄紙機のフェルト、ワイヤー、
プレスロールなどにピッチが付着し、抄紙機の操業性の
低下や塗工原紙に穴があくなどの問題が発生する。しか
し、ピッチは、繊維成分との比重差があまりないためパ
ルプから機械的に完全に除去することは困難である。
In the pulp from which the coated broke has been disintegrated, a white pitch having a tackiness of about 0.01 to 5 mm derived from the pigment and the adhesive (mainly latex, a small amount of calcium carbonate, etc.) , Hereafter, simply referred to as "pitch"), and when a coated base paper is made using a stock containing pulp disaggregated from coated broke, felt, wire of a paper machine,
Pitch adheres to press rolls, which causes problems such as poor operability of the paper machine and holes in the coated base paper. However, it is difficult to mechanically completely remove pitch from pulp because there is not much difference in specific gravity from the fiber component.

【0004】そのため、原料パルプに混在するピッチを
無害化する技術が従来より研究されており、界面活性剤
を用いてピッチを細かく分散しパルプに吸着させて系外
へ除去する方法、タルク、カチオン系樹脂を用いてピッ
チを吸着させ紙として系外へ除去する方法、水溶性ジル
コニウム化合物を用いてピッチの粘着性をなくし紙とし
て系外へ除去する方法(特開昭55−122094号公
報,「 ALPHA」1991年9月号83〜85頁)などが
知られている。
Therefore, a technique for detoxifying pitch mixed in raw pulp has been conventionally researched, and a method of finely dispersing pitch using a surfactant, adsorbing it on pulp and removing it from the system, talc, cation. A method of adsorbing the pitch by using a system resin to remove it as a paper from the outside of the system, and a method of using a water-soluble zirconium compound to remove the tackiness of the pitch and removing it as a paper to the outside of the system (JP-A-55-122094, " ALPHA ", September 1991, pp. 83-85).

【0005】しかし、界面活性剤、タルク、カチオン系
樹脂を用いる方法は、イオン的にピッチ粒子を安定化し
たり、物理的な吸着力によってピッチを安定化する方法
であって、抄紙機のワイヤー上でパルプスラリーからパ
ルプと白水がろ過(抄紙)される時の剪断力などで容易
に凝集するためピッチに起因する問題を解決する効果的
な方法とは言い難い。
However, the method of using a surfactant, talc, or a cationic resin is a method of stabilizing pitch particles ionically or stabilizing the pitch by a physical adsorption force. Therefore, it is difficult to say that this is an effective method for solving the problem caused by pitch because the pulp and white water are easily aggregated by the shearing force when being filtered (papermaking) from the pulp slurry.

【0006】これに対して、水溶性ジルコニウム化合物
を用いる方法は、水溶性ジルコニウム化合物がピッチ成
分中のカルボキシル基、水酸基などの官能基と反応する
ことによってピッチが粘着性をなくすということを利用
したものである。この方法は製紙工場で発生するほとん
どの粘着性凝集性ピッチに効果が認められるものであ
り、ピッチの粘着付着による問題を解決する上で極めて
有効な方法であるために、現在、この水溶性ジルコニウ
ム化合物を用いる方法がピッチ対策のための最も一般的
な方法となりつつある。
On the other hand, the method using the water-soluble zirconium compound utilizes the fact that the pitch loses tackiness by reacting the water-soluble zirconium compound with functional groups such as carboxyl groups and hydroxyl groups in the pitch component. It is a thing. This method is effective for most tacky cohesive pitches generated in paper mills, and is a very effective method for solving the problem of tacky adhesion of pitch. The method using a compound is becoming the most popular method for pitch control.

【0007】水溶性ジルコニウム化合物を用いる前記方
法では、水溶性ジルコニウム化合物の添加方法は、抄紙
される15〜30分前の工程で、かつ充分パルプと攪拌
混合できれば添加方法などは問わないが、それ以前の工
程、例えば塗工損紙を離解するパルパーなどへ添加する
と、所望の効果を得るために水溶性ジルコニウム化合物
の大巾な増添加を伴ないコスト上の問題を引き起こすこ
ととなる。従って抄紙する15〜30分前の工程でパル
プへ水溶性ジルコニウム化合物を添加するのが一般的に
なっている。
In the above-mentioned method using the water-soluble zirconium compound, the method of adding the water-soluble zirconium compound is not limited as long as it is 15 to 30 minutes before the papermaking and can be sufficiently stirred and mixed with pulp. Addition to a previous step, such as pulper for disintegrating coated broke, causes cost problems with the drastic addition of water-soluble zirconium compounds to obtain the desired effect. Therefore, it is general to add the water-soluble zirconium compound to the pulp 15 to 30 minutes before the papermaking.

【0008】[0008]

【発明が解決しようとする課題】前記の水溶性ジルコニ
ウム化合物を添加する方法では、塗工損紙を離解したパ
ルプ中のピッチは水溶性ジルコニウム化合物と反応して
粘着性を失ない、抄紙機へ付着することなくピッチの一
部または全部がパルプに混ざって抄紙され、塗工原紙中
に抄き込まれることによって抄紙工程系外へ除去される
こととなる。このように、ピッチが塗工原紙中に抄き込
まれると、抄き込まれた部分は塗工原紙の表面からわず
かに出っぱった状態となる。このわずかな出っぱりをな
くすため、従来においてはマシンカレンダー処理の強化
を行なっていたが、微小な出っぱりまですべてつぶせる
わけではなく、このような塗工原紙表面に塗工液をコー
ターで塗工すると塗工原紙表面には微細なふくれが残
る。そして、この微小のふくれ部分がグラビア印刷イン
キ着肉不良の原因となり、印刷用塗工紙の製品価値を低
下させていた。
In the method of adding the water-soluble zirconium compound, the pitch in the pulp disaggregated from the coated broke does not lose its tackiness by reacting with the water-soluble zirconium compound. A part or all of the pitch is mixed with pulp without adhering to the paper for papermaking, and the paper is incorporated into the coated base paper to be removed from the papermaking process system. As described above, when the pitch is machined into the coated base paper, the machined part is slightly protruding from the surface of the coated base paper. In order to eliminate this slight protrusion, the machine calendering process has been strengthened in the past, but it is not possible to crush all the minute protrusions. When coated, fine blisters remain on the surface of the coated base paper. Then, the minute swelling portion causes the gravure printing ink inking defect, and reduces the product value of the coated paper for printing.

【0009】本発明は塗工損紙よりのパルプを含む塗工
原紙であって塗工損紙よりのパルプに混入しているピッ
チの粘着性を失なわせしめることによって抄紙機の操業
安定化が図れ、しかも得られた印刷用塗工紙が優れたグ
ラビア印刷インキ着肉性を有している、印刷用塗工紙の
ための原紙を提供することを目的としてなされたもので
ある。
The present invention is a coated base paper containing pulp from coated broke, and by stabilizing the pitch of the pitch mixed in the pulp from coated broke, the operation stability of the paper machine is improved. The purpose of the present invention is to provide a base paper for a coated paper for printing, in which the obtained coated paper for printing has excellent gravure ink receptivity.

【0010】[0010]

【課題を解決するための手段】かかる現状に鑑み、本発
明者等は塗工損紙を離解して発生するピッチの無害化に
ついて鋭意研究した結果、塗工原紙を抄紙する抄紙機の
操業性を確保するためには、水溶性ジルコニウム化合物
を塗工損紙よりのパルプへ用いることが不可欠であるこ
と、粘着性を有するピッチは細かく分断するのが難かし
いが、粘着性を失なったピッチは細かく分断しやすいこ
と、粘着性を失なったピッチを細かく分断することによ
って塗工紙のグラビア印刷インキ着肉性が向上すること
及びピッチを細かく分断する方法はリファイナーによる
叩解処理が最も効果が高いことを見い出し本発明を完成
するに到った。
In view of the present situation, the inventors of the present invention have earnestly studied the detoxification of pitch generated by disaggregating coated spoiled paper, and as a result, the operability of a paper machine for making coated base paper. It is essential to use a water-soluble zirconium compound in the pulp from the coated broke paper in order to ensure that the pitch with tackiness is difficult to be finely divided, but the pitch with tackiness is lost. Is easy to finely divide, gravure printing ink receptivity of coated paper is improved by finely dividing the pitch that has lost adhesiveness, and the method of finely dividing the pitch is the most effective beating treatment with a refiner. It was found to be expensive and the present invention was completed.

【0011】本発明は印刷用塗工紙用原紙であって、該
原紙を構成するパルプ成分中の3〜30重量%(絶乾)
が塗工損紙を離解したパルプスラリーに水溶性ジルコニ
ウム化合物を加え、次いで叩解によってフリーネスを2
0〜200ml(CSF)低下せしめたものであることを
特徴とする印刷用塗工紙用原紙に関するものである。
The present invention is a base paper for coated paper for printing, wherein the pulp component constituting the base paper is 3 to 30% by weight (absolutely dry).
The water-soluble zirconium compound was added to the pulp slurry from which the coated broke was disintegrated, and then beating was performed to reduce the freeness to 2
The present invention relates to a base paper for printing coated paper, which is characterized by having a reduced amount of 0 to 200 ml (CSF).

【0012】本発明の塗工原紙の抄造に使用される塗工
損紙は、セルロースパルプの他に、タルク、カオリン、
クレー、炭酸カルシウムなどの無機顔料と、スチレン・
ブタジエン共重合体ラテックス(SBR)、メチルメタ
アクリレート・ブタジエン共重合体ラテックス(MB
R)などのラテックスを含む、普通の印刷用塗工紙であ
る。
The coated broke used in the papermaking of the coated base paper of the present invention includes, in addition to cellulose pulp, talc, kaolin,
Inorganic pigments such as clay and calcium carbonate, and styrene
Butadiene copolymer latex (SBR), methyl methacrylate / butadiene copolymer latex (MB
It is a common printing coated paper containing a latex such as R).

【0013】本発明の塗工原紙の抄造過程で行われる塗
工損紙の離解工程は、通常の損紙処理に使用されるパル
パーや離解機によって行われる。この離解工程から得ら
れるパルプスラリー中には、前記印刷用塗工紙に用いら
れているラテックスが少量の無機物と共に、前記した
0.01〜5mmの粘着性を有する球形で白色のピッチを
形成して含まれている。
The disintegration process of coated broke that is carried out in the paper making process of the coated base paper of the present invention is carried out by a pulper or disintegrator used for ordinary broke treatment. In the pulp slurry obtained from this disaggregation step, the latex used for the above-mentioned coated paper for printing together with a small amount of an inorganic substance forms a spherical white pitch having the above-mentioned adhesiveness of 0.01 to 5 mm. Included.

【0014】本発明の塗工原紙は、原料パルプの一部と
して、前記のパルプスラリーに水溶性ジルコニウム化合
物を加えてピッチの粘着性を失なわしめた後、叩解した
ものを使用するものである。パルプスラリーへ添加する
水溶性ジルコニウム化合物としては、炭酸アンモニウム
ジルコニウム(ammonium zirconium carbonate)、酢酸
ジルコニウム、酸塩化ジルコニウム、硫酸ジルコニウ
ム、硝酸ジルコニウム、塩化ジルコニウム、ヨウ化ジル
コニウム、フッ化ジルコニウム、オキシ硫酸ジルコニウ
ム、オキシ塩化ジルコニウム、オキシ硝酸ジルコニウ
ム、オキシ臭化ジルコニウムが適用できるが、価格、取
扱いやすさ、粘着性を失なわせしめる効果、効果発現ま
での時間などのバランスから炭酸アンモニウムジルコニ
ウムが、本発明に最も適している。水溶性ジルコニウム
化合物の添加割合は、絶乾パルプ重量当り酸化ジルコニ
ウム(ZrO2 )換算0.001〜0.3重量%であ
る。
The coated base paper of the present invention is prepared by adding a water-soluble zirconium compound to the above pulp slurry to loosen the tackiness of the pitch and then beating it as a part of the raw pulp. . Examples of the water-soluble zirconium compound added to the pulp slurry include ammonium zirconium carbonate, zirconium acetate, zirconium oxychloride, zirconium sulfate, zirconium nitrate, zirconium chloride, zirconium iodide, zirconium fluoride, zirconium oxysulfate and oxysulfate. Although zirconium chloride, zirconium oxynitrate, and zirconium oxybromide can be applied, ammonium zirconium carbonate is most suitable for the present invention from the balance of price, ease of handling, effect of losing adhesiveness, time to effect development, etc. There is. The addition ratio of the water-soluble zirconium compound is 0.001 to 0.3% by weight in terms of zirconium oxide (ZrO 2 ) based on the weight of absolutely dry pulp.

【0015】水溶性ジルコニウム化合物の添加率が絶乾
パルプ重量当り、酸化ジルコニウムとして0.001重
量%未満ではピッチが粘着性を失わず本発明の効果が得
られない。0.3重量%を越えると効果に差がなく炭酸
アンモニウムジルコニウムが無駄になるので好ましくは
0.003〜0.25重量%である。
If the addition ratio of the water-soluble zirconium compound is less than 0.001% by weight of zirconium oxide based on the weight of the absolutely dry pulp, the pitch loses its tackiness and the effect of the present invention cannot be obtained. If it exceeds 0.3% by weight, there is no difference in effect and the ammonium zirconium carbonate is wasted, so the content is preferably 0.003 to 0.25% by weight.

【0016】炭酸アンモニウムジルコニウムを添加する
場所は、添加後抄紙されるまで、15分以上好ましくは
20分以上滞留時間(反応時間)が設けられれば特に添
加場所は問わない。またパルプスラリー中に炭酸アンモ
ニウムジルコニウムを充分分散させなければ所望の効果
が得られないので、例えばパルプスラリーを移送するポ
ンプのサクションへ添加する方法などによって攪拌、混
合を充分に期す必要がある。
The place where ammonium zirconium carbonate is added is not particularly limited as long as a residence time (reaction time) of 15 minutes or more, preferably 20 minutes or more is provided until papermaking after the addition. Further, the desired effect cannot be obtained unless the zirconium ammonium carbonate is sufficiently dispersed in the pulp slurry, and therefore it is necessary to sufficiently stir and mix the mixture by, for example, a method of adding it to the suction of a pump for transferring the pulp slurry.

【0017】炭酸アンモニウムジルコニウムを添加する
際のパルプスラリーの濃度は0.3〜15重量%であ
り、0.3重量%未満では炭酸アンモニウムジルコニウ
ムがパルプスラリーの水で薄まりすぎて所望の効果が得
られず、15重量%を越えるとパルプスラリーと均一に
混合することが難かしい。好ましくは0.5〜12重量
%である。
When the zirconium ammonium carbonate is added, the concentration of the pulp slurry is 0.3 to 15% by weight. If it is less than 0.3% by weight, the ammonium zirconium carbonate is too thin with the water of the pulp slurry to obtain a desired effect. If it exceeds 15% by weight, it is difficult to uniformly mix with the pulp slurry. It is preferably 0.5 to 12% by weight.

【0018】ついで、塗工損紙よりのパルプ中の粘着性
を失なったピッチを除去するためには、まず公知の形状
で異物を除去するスクリーンや、比重差で異物を除去す
るクリーナーで処理することが行われる。しかし1mm以
下のピッチはスクリーンでの除去が難かしく、またパル
プの比重とピッチの比重があまり変わらないためクリー
ナーによっても充分ピッチを除去できない。この大きさ
のピッチが抄紙原料パルプへ混り込んだ抄き込まれる
と、ピッチが抄き込まれた塗工原紙より製造した塗工紙
はグラビア印刷インキ着肉性が悪くなる。
Then, in order to remove the tack-free pitch in the pulp from the coated spoiled paper, first, use a screen for removing foreign matter in a known shape or a cleaner for removing foreign matter by the difference in specific gravity. Is done. However, if the pitch is less than 1 mm, it is difficult to remove it with a screen, and since the specific gravity of the pulp and the specific gravity of the pitch do not change so much, the pitch cannot be removed sufficiently even by a cleaner. When a pitch of this size is mixed into the raw pulp for papermaking, the coated paper produced from the coated base paper having the pitch is deteriorated in gravure printing ink receptivity.

【0019】前記したように、塗工損紙よりのパルプに
炭酸アンモニウムジルコニウムを添加し、粘着性を失な
わせてもピッチを完全に除去することは無理である。
As described above, it is not possible to completely remove the pitch by adding ammonium zirconium carbonate to the pulp from the coated broke to lose the tackiness.

【0020】それ故、本発明は、前記の粘着性を失わし
めたピッチを、長径がパルプの繊維巾より小さい0.0
5mm未満の大きさへ細裂化して塗工紙のグラビア印刷イ
ンキ着肉性の低下を引き起こすことがない粒子としてい
るものである。該ピッチの細裂化は、塗工損紙よりのパ
ルプに炭酸アンモニウムジルコニウムを添加後、15分
以上好ましくは20分以上経過した後パルプごと叩解を
行うことによって行われる。
Therefore, in the present invention, the above-mentioned pitch in which the tackiness is lost is set to 0.0 when the major axis is smaller than the fiber width of pulp.
The particles are particles that are not shredded to a size of less than 5 mm and do not cause a decrease in the ink receptivity of the gravure printing ink of the coated paper. The pitch is finely chopped by adding ammonium zirconium carbonate to pulp from coated broke, and then beating the pulp after 15 minutes or more, preferably 20 minutes or more.

【0021】塗工損紙よりのパルプはフリーネス350
〜500ml(CSF)程度である。叩解後のパルプのフ
リーネスの低下量が多い程ピッチは細裂化し、フリーネ
スの低下が20ml(CSF)未満ではピッチは充分細裂
化しないので好ましくなく、200mlを越えるとピッチ
は0.05mm未満に細裂するものの、パルプ繊維も微細
化し塗工紙の品質低下を引き起こしかねないのでこれも
好ましくない。叩解はフリーネスの低下を20〜200
ml(CSF)、好ましくは30〜180ml(CSF)の
範囲で調節し、ピッチを細裂化し、無害化させるのが好
ましい。
Pulp from coated spoiled paper has a freeness of 350
~ 500 ml (CSF). The greater the decrease in the freeness of the pulp after beating is, the more the pitch is shredded. If the freeness decrease is less than 20 ml (CSF), the pitch is not sufficiently shredded, which is not preferable. If it exceeds 200 ml, the pitch is less than 0.05 mm. Although it breaks, the pulp fibers also become finer and may cause deterioration of the quality of the coated paper, which is also not preferable. Beating reduces freeness by 20 to 200
ml (CSF), preferably in the range of 30 to 180 ml (CSF), the pitch is shredded and rendered harmless.

【0022】粘着性を有するピッチをリファイナーで処
理しても所望の大きさまで細裂化しないので、リファイ
ナー処理の前工程での炭酸アンモニウムジルコニウムを
添加して粘着性を失なわせしめることが本発明に不可欠
である。
Since the pitch having tackiness is not shredded to a desired size even if it is treated with a refiner, it is indispensable in the present invention to add ammonium zirconium carbonate in the step before the refiner treatment to lose the tackiness. Is.

【0023】なお、塗工損紙よりのパルプはスクリーン
処理後フリーネスが350〜500ml(CSF)程度で
あり、塗工原紙は抄紙原料パルプのフリーネス320〜
500ml(CSF)に近いため叩解処理を施さないのが
一般的である。しかし、本発明の場合、前記した叩解を
行うことによって、塗工損紙よりのパルプのフリーネス
が一定に保たれることとなった結果、紙料のフリーネス
が安定し塗工原地の地合いの改良などの副次的効果をも
達成し得たものである。
The pulp from the coated broke has a freeness of about 350 to 500 ml (CSF) after the screen treatment, and the coated base paper has a freeness of 320 to about 320 from the raw pulp for papermaking.
Since it is close to 500 ml (CSF), it is generally not beaten. However, in the case of the present invention, by performing the above-described beating, the freeness of the pulp from the coated spoiled paper is kept constant, and as a result, the freeness of the stock is stable and the texture of the coating base is stable. The secondary effects such as improvement could be achieved.

【0024】前記のように、叩解処理し無害化したピッ
チを含むパルプは、塗工原紙を構成するパルプ成分中の
3〜30重量%(絶乾)を占めるように配合される。3
重量%未満では前記叩解処理したパルプを含まない塗工
原紙と同じ程度性能が優れているので本発明を適用する
必要はなく、30重量%を越えると塗工原紙よりのパル
プに含まれる填料(前記、無機分)などの影響が大きく
なり、塗工原紙用紙料に含まれる填料の配合率を所望の
範囲に調節できず、塗工原紙の層間強度の低下や不透明
度の低下など品質の低下を引き起こすから、配合量は、
前記したように、3〜30重量%であることが重要であ
り、好ましくは5〜25重量%である。
As described above, pulp containing beating-treated and harmless pitch is blended so as to account for 3 to 30% by weight (absolutely dry) in the pulp component constituting the coated base paper. Three
When it is less than 30% by weight, the performance is as excellent as that of the beaten pulp-free coated base paper. Therefore, it is not necessary to apply the present invention, and when it exceeds 30% by weight, the filler contained in the pulp from the coated base paper ( The influence of the above (inorganic content) becomes large, and the blending ratio of the filler contained in the coated base paper stock cannot be adjusted to a desired range, resulting in a decrease in quality such as a decrease in interlayer strength and a decrease in opacity of the coated base paper. Therefore, the compounding amount is
As mentioned above, it is important to be 3 to 30% by weight, preferably 5 to 25% by weight.

【0025】本発明の塗工原紙を抄造するに際しては、
原料パルプとして塗工損紙をパルプ化し、さらにピッチ
を無害化したパルプの他に、針葉樹や広葉樹チップ等の
リグノセルロース材料やバガス、ケナフ、アシ、ワラ等
の一年生植物からの非木材セルロースをクラフト蒸解法
のごときアルカリ蒸解して得られるパルプを漂白したパ
ルプ、高歩止りパルプを漂白したパルプ等を使用するこ
とができる。塗工損紙よりのパルプ以外の各種晒パルプ
の使用割合は、塗工原紙に要求される品質に応じて適宜
選定することができる。
When making the coated base paper of the present invention,
Crafting non-wood cellulose from lignocellulosic materials such as softwood and hardwood chips and annual plants such as bagasse, kenaf, reeds and straws, in addition to pulp made from coated broke as raw material pulp and detoxifying the pitch. Pulp obtained by bleaching pulp obtained by alkaline digestion such as a cooking method, pulp obtained by bleaching high-yield pulp, and the like can be used. The use ratio of various bleached pulps other than the pulp from the coated broke can be appropriately selected according to the quality required for the coated base paper.

【0026】炭酸アンモニウムジルコニウムを添加し、
15分以上、好ましくは20分以上保持(反応)させた
塗工損紙よりのパルプと前記他のパルプを混合後叩解す
る方法によっても本発明の効果を得ることができる。
Add ammonium zirconium carbonate,
The effect of the present invention can also be obtained by a method of beating after mixing pulp from coated broke that has been held (reacted) for 15 minutes or longer, preferably 20 minutes or longer, with the other pulp.

【0027】本発明の塗工原紙の抄紙方法は特に限定さ
れることはなく、従来から慣用されている抄紙法を採用
することができる。例えば抄紙pHが4.5付近で行う
酸性抄紙法や、炭酸カルシウム等のアルカリ性填料を主
成分として含む、抄紙pHが約6〜9といった弱酸性〜
弱アルカリ性で行う、いわゆる中性抄紙法を採用しても
よい。 本発明の塗工原紙は、その用途や目的に応じ
て、米坪が20〜400g/m2 程度となるように抄造
することができる。
The papermaking method of the coated base paper of the present invention is not particularly limited, and a conventionally used papermaking method can be adopted. For example, an acidic papermaking method carried out at a papermaking pH of around 4.5, or a weakly acidic papermaking pH of about 6 to 9 containing an alkaline filler such as calcium carbonate as a main component.
A so-called neutral papermaking method, which is carried out in a weak alkalinity, may be adopted. The coated base paper of the present invention can be made into a paper having a basis weight of about 20 to 400 g / m 2 depending on the use and purpose.

【0028】また、本発明の塗工原紙の抄造に際して
は、必要に応じて従来から一般的に慣用されている内添
用填料を使用することができる。例えば、タルク、カオ
リン、クレー、焼成カオリン、デラミカオリン、重質炭
酸カルシウム、軽質炭酸カルシウム、炭酸マグネシウ
ム、水酸化アルミニウム、二酸化チタン、硅酸マグネシ
ウム、硫酸マグネシウム、硫酸カルシウム、サチンホワ
イト、ホワイトカーボン、アルミノ硅酸塩、シリカ、ベ
ントナイト等の鉱物質填料や、ポリスチレン樹脂微粒
子、尿素ホルマリン樹脂微粒子、微小中空粒子等の有機
合成填料(プラスチックピグメント)の中から一種又は
二種以上を適宜選択して使用でき、さらに古紙やプロー
ク(損紙)、共紙等に含まれる填料も有効に使用でき
る。
Further, in the papermaking of the coated base paper of the present invention, an internally added filler which has been conventionally generally used can be used if necessary. For example, talc, kaolin, clay, calcined kaolin, deramie kaolin, heavy calcium carbonate, light calcium carbonate, magnesium carbonate, aluminum hydroxide, titanium dioxide, magnesium silicate, magnesium sulfate, calcium sulfate, satin white, white carbon, alumino. One or more of mineral fillers such as silicate, silica and bentonite, and organic synthetic fillers (plastic pigments) such as polystyrene resin fine particles, urea formalin resin fine particles and fine hollow particles can be appropriately selected and used. Moreover, the fillers contained in waste paper, plaque, and common paper can also be used effectively.

【0029】これらの他に、従来から使用されている各
種のアニオン性、カチオン性、ノニオン性又は両性の歩
留向上剤、ろ水性向上剤、紙力増強剤等の抄紙用内添助
剤を必要に応じてパルプスラリー中に適宜添加してもよ
い。抄紙用内添助剤としては、例えば硫酸バンド、塩化
アルミニウム、アルミン酸ソーダ及び塩基性塩化アルミ
ニウム、塩基性ポリ水酸化アルミニウム等の塩基性アル
ミニウム化合物や水に易分散性のアルミナゾル等の水溶
性アルミニウム化合物、或いは各種澱粉類、ポリアクリ
ルアミド、ポリエチレンイミン、ポリアミン、ポリアミ
ド・ポリアミン、ポリエチレンオキサイド、植物ガム、
尿素ホルマリン樹脂、メラミンホルマリン樹脂、ポリビ
ニルアルコール、ラテックス、ポリアミド樹脂、親水性
架橋ポリマー粒子分散物等及びこれらの誘導体又は変性
物やベントナイト等の化合物が挙げられる。さらにま
た、染料、pH調整剤、ピッチコントロール剤、スライ
ムコントロール剤、消泡剤等を必要に応じて適宜添加す
ることもできる。
In addition to these, various conventionally used anionic, cationic, nonionic or amphoteric retention aids, drainage improvers, paper-strengthening aids and other internal additives for papermaking are used. You may add suitably in a pulp slurry as needed. Examples of the internal additive for papermaking include sulfuric acid band, aluminum chloride, sodium aluminate and basic aluminum chloride, basic aluminum compounds such as basic polyaluminum hydroxide, and water-soluble aluminum such as alumina sol easily dispersible in water. Compound or various starches, polyacrylamide, polyethyleneimine, polyamine, polyamide polyamine, polyethylene oxide, vegetable gum,
Examples thereof include urea formalin resin, melamine formalin resin, polyvinyl alcohol, latex, polyamide resin, hydrophilic crosslinked polymer particle dispersion and the like, and derivatives or modified products thereof and compounds such as bentonite. Furthermore, a dye, a pH adjuster, a pitch control agent, a slime control agent, an antifoaming agent and the like can be added as necessary.

【0030】印刷用塗工紙は、本発明の塗工原紙の片面
又は両面に、顔料と接着剤を主成分とする塗工液を塗工
して製造される。この塗工液組成物は、一般に固形分濃
度が40〜75重量%、好ましくは45〜70重量%程
度の範囲に調整される。塗工原紙上に塗工液を塗工して
塗工層を形成するに当たっては、塗工液を一度塗りした
塗工層を形成してもよく、或いは下塗り層及び上塗り層
に分けて多層構造として形成してもよい。多層構造の場
合には、下塗り層と上塗り層の塗工液組成が同一である
必要はなく、要求される品質レベルに応じて塗工液組成
を適宜変化させることもできる。
The coated paper for printing is produced by coating one or both sides of the coated base paper of the present invention with a coating liquid containing a pigment and an adhesive as main components. The coating composition is generally adjusted to have a solid content concentration of 40 to 75% by weight, preferably 45 to 70% by weight. In forming the coating layer by coating the coating liquid on the coating base paper, the coating layer may be formed by applying the coating liquid once, or the coating layer may be divided into an undercoat layer and an overcoat layer to form a multilayer structure. You may form as. In the case of a multi-layer structure, the undercoat layer and the overcoat layer do not have to have the same coating liquid composition, and the coating liquid composition can be appropriately changed according to the required quality level.

【0031】塗工層を形成する方法としては、従来から
慣用されている塗工装置、例えばブレードコーター、エ
アーナイフコーター、ロールコーター、リバースロール
コーター、バーコーター、カーテンコーター、ダイスロ
ットコーター、グラビアコーター、チャンプレックスコ
ーター、ブラシコーター、サイズプレスコーター等の各
種コーターを用いて塗工液を塗工原紙表面に塗工する。
これらの塗工装置はオンマシン或いはオフマシンコータ
ーのいずれの形式で使用してもよい。塗工原紙への塗工
液の塗工量は、通常乾燥重量で片面当たり2〜50g/
2程度であるが、得られる塗工紙の白紙品質、印刷適
性等を考慮すると5〜30g/m2 程度の範囲で調節す
るのが望ましい。また、このようにして得られた印刷用
塗工紙は、水分が通常3〜10重量%程度の範囲となる
よう乾燥した後、オン又はオフのスーパーカレンダー等
に通紙して加圧仕上げが行われる。
As the method for forming the coating layer, conventionally used coating apparatuses such as a blade coater, an air knife coater, a roll coater, a reverse roll coater, a bar coater, a curtain coater, a die slot coater and a gravure coater. The coating liquid is applied to the surface of the coated base paper using various coaters such as a Champlex coater, a brush coater, and a size press coater.
These coating devices may be used in either on-machine or off-machine coater form. The coating amount of the coating liquid on the coating base paper is usually 2 to 50 g / dry side per one side.
Although it is about m 2, it is desirable to adjust it in the range of about 5 to 30 g / m 2 in consideration of the blank quality and printability of the coated paper obtained. The coated paper for printing thus obtained is dried so that the water content is usually in the range of about 3 to 10% by weight, and then passed through an on or off super calendar or the like for pressure finishing. Done.

【0032】[0032]

【実施例】以下に実施例及び比較例を挙げて本発明をよ
り具体的に説明するが、勿論本発明はこれ等の実施例に
限定されるものではない。なお、特に断らない限り、実
施例、比較例中の%及び部はそれぞれ重量%及び重量部
を示している。
EXAMPLES The present invention will be described in more detail with reference to examples and comparative examples, but the present invention is not limited to these examples. Unless otherwise specified,% and parts in Examples and Comparative Examples represent% by weight and parts by weight, respectively.

【0033】塗工損紙からのパルプとして、塗工量が片
面当り10g/m2 の両面塗工紙であって米坪75g/
2 の塗工損紙をパルパーで解繊しパルプ化したものを
用いた。このパルプのフリーネスは490ml(CS
F)、白色度79.5%(ハンター白色度)であり、径
が0.01〜5mmの大きさの白色ピッチの他、カオリン等
の顔料、炭酸カルシウム、タルクなどの填料が含まれて
いた。
As pulp from coated broke, a double-sided coated paper with a coating amount of 10 g / m 2 per side and 75 g / m 2
The coated paper loss m 2 was used as the fibrillated pulped in a pulper. The freeness of this pulp is 490 ml (CS
F), the whiteness was 79.5% (Hunter whiteness), and in addition to the white pitch having a diameter of 0.01 to 5 mm, pigments such as kaolin and fillers such as calcium carbonate and talc were contained. .

【0034】炭酸アンモニウムジルコニウムは日本軽金
属社製 BACOTE 20を使用した。
BACOTE 20 manufactured by Nippon Light Metal Co., Ltd. was used as ammonium zirconium carbonate.

【0035】他のパルプとしては、針葉樹チップ(ダグ
ラスファー15%及び国内産松85%)及び国内産広葉
樹チップからそれぞれカミヤ社製 連続蒸解釜でクラフ
ト蒸解液を用いて未晒パルプを製造し次いでこれを多段
漂白(C−E−H−D)して、ハンター白色度84.5
%、フリーネス710ml(CSF)の針葉樹晒パルプ
(NBKP)及びハンター白色度85.0%フリーネス
680ml(CSF)の広葉樹晒パルプ(LBKP)を製
造して使用した。
As other pulps, unbleached pulp is produced from softwood chips (15% Douglas fir and 85% domestic pine) and domestic hardwood chips in a continuous digester manufactured by Kamiya Co. using a kraft cooking liquor. This is subjected to multi-stage bleaching (C-E-H-D) to obtain a Hunter whiteness of 84.5.
%, Freeness 710 ml (CSF) softwood bleached pulp (NBKP) and Hunter whiteness 85.0% freeness 680 ml (CSF) hardwood bleached pulp (LBKP) were prepared and used.

【0036】実施例1 塗工損紙よりのパルプを3.5重量%に濃度調節しチェ
ストへ移送するためのポンプのサクション口で炭酸アン
モニウムジルコニウムを0.04重量%(対絶乾パルプ
重量当りZrO2 として)添加した。チェスト内で20
分反応させた後、10カットスリットスクリーンでピッ
チの一部を除去した。その後3.2重量%にパルプを濃
度調節し、ダブルデスクリファイナーでフリーネスを4
65ml(CSF)へ調節した(フリーネス低下量25ml
(CSF))。前記塗工損紙よりのフリーネスが460
ml(CSF)のパルプとフリーネスを490ml(CS
F)に調節したNBKPとフリーネスを460ml(CS
F)に調節したLBKPを、塗工原紙を構成するパルプ
絶乾重量当り、5重量%:25重量%:70重量%混
ぜ、以下の填料、薬品を添加または塗工して長鋼多筒ド
ライヤー式抄紙機を用いて塗工原紙を製造した。
Example 1 0.04% by weight of ammonium zirconium carbonate was added at the suction port of a pump for adjusting the concentration of pulp from coated broke to 3.5% by weight and transferring it to the chest (based on dry pulp weight). ZrO 2 ) was added. 20 in the chest
After reacting for a minute, a part of the pitch was removed with a 10-cut slit screen. Then, adjust the pulp concentration to 3.2% by weight, and set the freeness to 4 with a double desk refiner.
Adjusted to 65 ml (CSF) (freeness reduction amount 25 ml
(CSF)). Freeness is 460 compared with the coated broke
ml (CSF) pulp and freeness 490 ml (CS
NBKP adjusted to F) and freeness 460 ml (CS
LBKP adjusted to F) is mixed with 5% by weight: 25% by weight: 70% by weight based on the absolute dry weight of the pulp constituting the coated base paper, and the following fillers and chemicals are added or coated to make a long steel multi-cylinder dryer. A coated base paper was manufactured using a type paper machine.

【0037】塗工原紙は米坪41g/m2 、水分5.5
%であった。 填料(軽質炭酸カルシウム/タルク=80/20) : 12% アルケニル無水コハク酸系中性サイズ剤 (王子ナショナル社製、ファイブラン68) : 0.03% 硫酸バンド : 0.5% カチオン化デンプン(王子ナショナル社製,ケートF): 0.6% サイズプレス塗工酸化デンプン (王子コンスターチ社製,王子エースA) : 1.5g/m2 サイズプレス塗工アルキルケテンダイマー (花王社製,サイクリーン) : 0.02g/m2
The coated base paper has a basis weight of 41 g / m 2 and a water content of 5.5.
%Met. Filler (light calcium carbonate / talc = 80/20): 12% alkenyl succinic anhydride neutral sizing agent (Fibran 68 manufactured by Oji National Co., Ltd.): 0.03% Sulfate band: 0.5% Cationized starch ( Oji National Co., Ltd., Kate F): 0.6% Size Press Coated Oxidized Starch (Oji Constarch, Oji Ace A): 1.5g / m 2 Size Press Coated Alkyl Ketene Dimer (Kao, Cyclean) ): 0.02 g / m 2

【0038】なお、以下の実施例、比較例のいずれにお
いても上記填料、薬品を添加した。得られた塗工原紙に
下記組成の塗工液をブレードコーターで両面塗工した
後、150℃エアーホイルドライヤーで乾燥し、さらに
スーパーカレンダー処理を行って米坪55.5g/
2 、水分6%の塗工紙を製造した。 カオリン(EMC社製,HTクレー) : 70部 軽質炭酸カルシウム(平均粒子径 1.2μm) : 30部 酸化デンプン(王子コンスターチ社製, 王子エースA) : 1.5部 スチレンブタジエン系ラテックス (日本合成ゴム社製,JSR−2294) : 10.8部 その他分散剤,防腐剤,染料を含む なお、以下の実施例及び比較例のいずれにおいても上記
塗工液を使用した。
The fillers and chemicals were added in each of the following examples and comparative examples. The obtained coating base paper was coated on both sides with a coating liquid having the following composition with a blade coater, dried with an air foil dryer at 150 ° C., and further supercalendered to give a yield of 55.5 g / tsubo.
A coated paper having m 2 and a water content of 6% was produced. Kaolin (manufactured by EMC, HT clay): 70 parts Light calcium carbonate (average particle diameter 1.2 μm): 30 parts Oxidized starch (manufactured by Oji Constarch, Oji Ace A): 1.5 parts Styrene butadiene latex (Nippon Synthetic) Rubber Co., Ltd., JSR-2294): 10.8 parts Including other dispersants, preservatives, and dyes The above coating liquid was used in all of the following Examples and Comparative Examples.

【0039】実施例2 塗工損紙よりのパルプを3.5重量%に濃度調節しチェ
ストへ移送するためのポンプのサクション口で炭酸アン
モニウムジルコニウムを0.2重量%(対絶乾パルプ重
量当りZrO2 として)添加した。チェスト内で20分
反応させた後、10カットスリットスクリーンでピッチ
の一部を除去した。その後3.2重量%にパルプを濃度
調節し、ダブルデスクリファイナーでフリーネスを31
0ml(CSF)へ調節した。(フリーネス低下量180
ml(CSF))前記塗工損紙よりのフリーネスが310
ml(CSF)のパルプとフリーネスを520ml(CS
F)に調節したNBKPとフリーネス(CSF)を48
0mlに調節したLBKPを、塗工原紙を構成するパルプ
絶乾重量当り、28重量%:7重量%:65重量%混ぜ
て塗工原紙を製造した以外、実施例1と同様にして塗工
紙を製造した。
Example 2 0.2% by weight of ammonium zirconium carbonate was added to the suction port of the pump for adjusting the concentration of pulp from coated broke to 3.5% by weight and transferring it to the chest (based on dry pulp weight). ZrO 2 ) was added. After reacting for 20 minutes in the chest, a part of the pitch was removed with a 10-cut slit screen. After that, adjust the pulp concentration to 3.2% by weight, and set the freeness to 31 with a double desk refiner.
Adjusted to 0 ml (CSF). (Decrease in freeness 180
ml (CSF)) The freeness from the coated broke is 310
ml (CSF) pulp and freeness 520ml (CS
NBKP adjusted to F) and freeness (CSF) 48
Coated paper was prepared in the same manner as in Example 1 except that LBKP adjusted to 0 ml was mixed to 28% by weight: 7% by weight: 65% by weight based on the absolute dry weight of pulp constituting the coated paper, to produce a coated paper. Was manufactured.

【0040】実施例3 塗工損紙よりのパルプを3.5重量%に濃度調節し、チ
ェストへ移送するためのポンプのサクション口で炭酸ア
ンモニウムジルコニウムを0.2重量%(対絶乾パルプ
重量当りZrO2 として)添加した。チェスト内で20
分反応させた後10カットスリットスクリーンでピッチ
の一部を除去した。ピッチを一部除去した塗工損紙より
のパルプとNBKP,LBKPを塗工原紙を構成するパ
ルプ絶乾重量当り、5重量%:25重量%:70重量%
混ぜた後、ダブルデスクリファイナーで叩解し、フリー
ネス465ml(CSF)(フリーネス低下量25ml(C
SF))へ調節した。このパルプを用いた以外、実施例
1と同様にして塗工紙を製造した。
Example 3 Pulp from coated broke was adjusted to a concentration of 3.5% by weight, and 0.2% by weight of ammonium zirconium carbonate was added at the suction port of the pump for transferring to the chest (vs. dry pulp weight). Per unit ZrO 2 ) was added. 20 in the chest
After reacting for a minute, a part of the pitch was removed with a 10-cut slit screen. 5% by weight: 25% by weight: 70% by weight, based on the absolute dry weight of pulp from coated broke with partial removal of pitch and NBKP, LBKP
After mixing, beat with a double desk refiner, and freeness 465 ml (CSF) (freeness reduction amount 25 ml (C
SF))). A coated paper was produced in the same manner as in Example 1 except that this pulp was used.

【0041】実施例4 実施例1において、炭酸アンモニウムジルコニウムに代
えて酢酸ジルコニウムを用いた以外、実施例1と同様に
して塗工紙を製造した。
Example 4 A coated paper was produced in the same manner as in Example 1 except that zirconium acetate was used instead of ammonium zirconium carbonate.

【0042】実施例5 実施例1において、炭酸アンモニウムジルコニウムに代
えて硫酸ジルコニウムを用いた以外、実施例1と同様に
して塗工紙を製造した。
Example 5 A coated paper was produced in the same manner as in Example 1 except that zirconium sulfate was used instead of ammonium zirconium carbonate.

【0043】実施例6 実施例1において、炭酸アンモニウムジルコニウムに代
えて酸塩化ジルコニウムを用いた以外、実施例1と同様
にして塗工紙を製造した。
Example 6 A coated paper was produced in the same manner as in Example 1 except that zirconium oxychloride was used instead of ammonium zirconium carbonate.

【0044】比較例1 実施例1において、塗工損紙よりのパルプを炭酸アンモ
ニウムジルコニウムでの処理及び叩解処理をせず、単に
スクリーンでピッチを除く処理を施し、塗工原紙の原料
パルプとして使用し、実施例1と同様にして塗工紙を製
造した。
Comparative Example 1 In Example 1, the pulp from the coated broke was used as the raw material pulp for the coated base paper, without the treatment with ammonium zirconium carbonate and the beating treatment, but simply removing the pitch with a screen. Then, a coated paper was manufactured in the same manner as in Example 1.

【0045】比較例2 実施例1において、塗工損紙よりのパルプを炭酸アンモ
ニウムジルコニウムで処理し、次いでスクリーン処理し
てダブルデスクリファイナーでフリーネスを475ml
(CSF)へ調節後(フリーネス低下量15ml(CS
F))塗工原紙の原紙パルプとして使用し、実施例1と
同様にして塗工紙を製造した。
Comparative Example 2 In Example 1, pulp from coated broke was treated with ammonium zirconium carbonate and then screened to a freeness of 475 ml with a double desk refiner.
After adjusting to (CSF) (freeness reduction amount 15 ml (CS
F)) A coated paper was produced in the same manner as in Example 1 using as a base paper pulp of the coated base paper.

【0046】比較例3 実施例2において、塗工損紙よりのパルプを炭酸アンモ
ニウムジルコニウムで処理し、次いでスクリーン処理し
てダブルデスクリファイナーでフリーネスを270ml
(CSF)へ調節後(フリーネス低下量220ml(CS
F))、塗工原紙の原紙パルプとして使用し、実施例2
と同様にして塗工紙を製造した。
Comparative Example 3 In Example 2, pulp from coated broke was treated with ammonium zirconium carbonate and then screened to a freeness of 270 ml with a double desk refiner.
After adjusting to (CSF) (freeness reduction amount 220 ml (CS
F)), used as base paper pulp for coated base paper, Example 2
A coated paper was manufactured in the same manner as in.

【0047】比較例4 実施例2において、塗工損紙よりのパルプを炭酸アンモ
ニウムジルコニウムで処理し次いでスクリーン処理した
後叩解によってフリーネスが310ml(CSF)に調節
された塗工損紙よりのパルプとフリーネスを520ml
(CSF)に調節したNBKPとフリーネスを480ml
(CSF)に調節したLBKPを、全パルプ絶乾重量当
り、32重量%:7重量%:61重量%混ぜて実施例2
と同様にして塗工紙を製造した。
Comparative Example 4 In Example 2, the pulp from the coated broke was treated with ammonium zirconium carbonate, screened and then beaten to adjust the freeness to 310 ml (CSF). Freeness 520ml
480 ml of freeness and NBKP adjusted to (CSF)
Example 2 was prepared by mixing LBKP adjusted to (CSF) with 32% by weight: 7% by weight: 61% by weight based on the total dry weight of all pulps.
A coated paper was manufactured in the same manner as in.

【0048】上記各実施例及び比較例で得られた塗工紙
について、塗工原紙を製造する抄紙機の操業性、塗工紙
のグラビア印刷インキ着肉性及び塗工原紙の層間強度を
下記の方法により測定して品質評価を行った。
With respect to the coated papers obtained in the above Examples and Comparative Examples, the operability of the paper machine for producing the coated base paper, the gravure printing ink receptivity of the coated paper and the interlaminar strength of the coated base paper are as follows. And the quality was evaluated.

【0049】抄紙機の操業性 抄紙機に付着した粘着物を除去するため抄紙機を止めざ
るを得なかった回数で評価する。 ◎ : 7日間全く抄紙機を止めなかった。 〇 : 7日間で1回抄紙機を止めた。 △ : 7日間で2〜3回抄紙機を止めた。 × : 7日間で4〜5回抄紙機を止めた。 ×× : 7日間で6回以上抄紙機を止めた。
Operability of paper machine Evaluation is performed by the number of times the paper machine had to be stopped in order to remove sticky substances adhering to the paper machine. ⊚: The paper machine was not stopped for 7 days. ◯: The paper machine was stopped once in 7 days. Δ: The paper machine was stopped 2-3 times in 7 days. X: The paper machine was stopped 4 to 5 times in 7 days. XX: The paper machine was stopped 6 times or more in 7 days.

【0050】インキ着肉性 グラビア印刷適正試験方法〔印刷局式)により印刷した
印刷物の白ヌケの程度を目視により5段階で評価した。 ◎ : 特に優れている 〇 : 優れている △ : 普通 × : やや劣る ×× : 劣る
Ink receptiveness Gravure printing suitability test method [Printing Bureau type] The degree of white spots on a printed matter was visually evaluated on a scale of 5 to 5. ◎: Particularly excellent ○: Excellent △: Normal ×: Slightly inferior × ×: Inferior

【0051】層間強度 J.TAPPI NO. 19−77に準拠した以下の方法で測定
した。塗工原紙の両面に粘着テープ(Beiersdorf社製
(ドイツ)テサNo. 4863,巾38mm)を均等に圧着
し、巾15mmのたんざく状に断裁した後、たんざくの両
面の粘着テープをテンシロン万能型引張り試験機(東洋
ボールドイン社製)で引っ張り、塗工原紙の紙層をはが
すために必要であった引張り強さ(g)で塗工原紙の層
間強度を評価した。引っ張り強さ(g)が高い程塗工原
紙の層間強度が高い。結果を表1に示す。
Interlayer strength J. It measured by the following method based on TAPPI NO. 19-77. Adhesive tape (Tesa No. 4863, Beer'sdorf (Germany) No. 4863, width 38mm) is evenly pressed on both sides of the coated base paper, and then cut into 15mm-width strips. The interlaminar strength of the coated base paper was evaluated by the tensile strength (g) required for peeling the paper layer of the coated base paper by pulling with a die tensile tester (manufactured by Toyo Bold-In Co., Ltd.). The higher the tensile strength (g), the higher the interlaminar strength of the coated base paper. The results are shown in Table 1.

【0052】なお、塗工損紙を離解したパルプのフリー
ネスの測定は、塗工損紙を離解後のパルプスラリー(白
色ピッチの他、顔料、填料を含む)を所定濃度に水で希
釈してフリーネス(CSF)を測定した。
The freeness of the pulp from which the coated broke was disintegrated was measured by diluting the pulp slurry (containing the white pitch, pigment and filler) after disaggregating the coated broke with a predetermined concentration with water. Freeness (CSF) was measured.

【0053】[0053]

【表1】 [Table 1]

【0054】表1から、実施例1〜6のものは、いづれ
も各評価項目の評価が優れていることを示している。こ
れに対して、水溶性ジルコニウム化合物を使用せず、又
叩解処理もしていない比較例1のものはインキ着肉性及
び抄紙機の操業性の評価が著しく劣っている。又、水溶
性ジルコニウム化合物は使用していても、叩解処理を十
分に行っておらず、したがってフリーネス低下量が15
ml(CSF)と少ない比較例2のものは、操業性と層間
強度の評価は良いものの、インキ着肉性の評価が低い結
果となっているし、比較例2とは逆に、叩解処理が過度
に行われた結果、フリーネス低下量が220ml(CS
F)と多くなり過ぎている比較例3のものと、使用して
いる塗工損紙からのパルプは本発明の要件を備えている
が、その全パルプ絶乾重量当りの混合量が本発明で規定
する混合量の範囲外である比較例4のものは、いづれも
層間強度の著しい低下を来すものであることが判る。
Table 1 shows that Examples 1 to 6 are excellent in evaluation of each evaluation item. On the other hand, in Comparative Example 1 in which the water-soluble zirconium compound was not used and the beating treatment was not performed, the ink receptivity and the operability of the paper machine were remarkably poor. Further, even if the water-soluble zirconium compound is used, the beating treatment is not sufficiently performed, so that the freeness reduction amount is 15
In Comparative Example 2 with a small amount of ml (CSF), the workability and the interlaminar strength were evaluated well, but the ink inking property was poorly evaluated. Contrary to Comparative Example 2, the beating treatment was As a result of excessive work, the freeness reduction amount was 220 ml (CS
F) which is too much and Comparative Example 3 and the pulp from the coated broke used in the present invention satisfy the requirements of the present invention, but the mixing amount thereof based on the total dry weight of the pulp is the present invention. It is understood that the samples of Comparative Example 4, which are out of the range of the mixing amount defined by, all show a significant decrease in interlayer strength.

【0055】[0055]

【発明の効果】以上の説明からわかるように本発明によ
れば、塗工損紙よりのパルプを水溶性ジルコニウム化合
物で処理し、次いで叩解してその中に含まれる粘着性を
失なったピッチを細裂化した後、この叩解済みの塗工損
紙よりのパルプを所定量用いて塗工原紙を抄造すること
によって抄紙機の粘着物付着による操業性の低下が改善
でき、塗工原紙表面への微小な出っぱりを効果的に減少
させられた結果、この塗工原紙を用いて製造した印刷用
塗工紙に、その層間強度を低下させることなく優れたグ
ラビア印刷インキ着肉性を付与することができる。
As can be seen from the above description, according to the present invention, the pitch from the coated broke paper is treated with a water-soluble zirconium compound and then beaten to lose the tackiness contained therein. After disintegrating the paper, by making a predetermined amount of pulp from the beaten coated broke paper to make a coated base paper, it is possible to improve the decrease in operability due to the sticking of sticky substances on the paper machine. As a result of being able to effectively reduce the minute protrusions, the coated paper for printing produced using this coated base paper has excellent gravure printing ink receptivity without lowering its interlayer strength. can do.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 原紙を構成するパルプ成分中の3〜30
重量%(絶乾)が、塗工損紙を離解したパルプスラリー
に水溶性ジルコニウム化合物を加え、次いで叩解によっ
てフリーネスを20〜200ml(CSF)低下せしめた
ものであることを特徴とする印刷用塗工紙用原紙。
1. 3 to 30 in the pulp component constituting the base paper
% By weight (absolute dryness) is obtained by adding a water-soluble zirconium compound to a pulp slurry obtained by disaggregating coated broke and then reducing the freeness by 20 to 200 ml (CSF) by beating. Base paper for engineering paper.
JP19464592A 1992-06-30 1992-06-30 Base paper for coated paper for printing Expired - Fee Related JP2964785B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19464592A JP2964785B2 (en) 1992-06-30 1992-06-30 Base paper for coated paper for printing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19464592A JP2964785B2 (en) 1992-06-30 1992-06-30 Base paper for coated paper for printing

Publications (2)

Publication Number Publication Date
JPH0617399A true JPH0617399A (en) 1994-01-25
JP2964785B2 JP2964785B2 (en) 1999-10-18

Family

ID=16327961

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19464592A Expired - Fee Related JP2964785B2 (en) 1992-06-30 1992-06-30 Base paper for coated paper for printing

Country Status (1)

Country Link
JP (1) JP2964785B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001087585A1 (en) * 1999-10-05 2001-11-22 Hopton Technologies, Inc. Inkjet papers incorporating zirconium salts
US6409881B1 (en) 1999-11-08 2002-06-25 Sca Hygiene Products Gmbh Metal-crosslinkable oxidized cellulose-containing fibrous materials and products made therefrom
JP2003293293A (en) * 2002-03-29 2003-10-15 Nippon Paper Industries Co Ltd Coated paper for gravure printing
US6635755B1 (en) 1999-11-08 2003-10-21 Sca Hygiene Products Gmbh Oxidized polymeric carbohydrates and products made thereof
US6824645B2 (en) 1999-02-24 2004-11-30 Sca Hygiene Products Gmbh Oxidized cellulose-containing fibrous materials and products made therefrom
WO2022062762A1 (en) * 2020-09-28 2022-03-31 刘玉芳 Production process for cotton stalk-molded meal box pulp having byproduct fulvic acid

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6824645B2 (en) 1999-02-24 2004-11-30 Sca Hygiene Products Gmbh Oxidized cellulose-containing fibrous materials and products made therefrom
WO2001087585A1 (en) * 1999-10-05 2001-11-22 Hopton Technologies, Inc. Inkjet papers incorporating zirconium salts
US6409881B1 (en) 1999-11-08 2002-06-25 Sca Hygiene Products Gmbh Metal-crosslinkable oxidized cellulose-containing fibrous materials and products made therefrom
US6635755B1 (en) 1999-11-08 2003-10-21 Sca Hygiene Products Gmbh Oxidized polymeric carbohydrates and products made thereof
US6987181B2 (en) 1999-11-08 2006-01-17 Sca Hygiene Products Gmbh Oxidized polymeric carbohydrates and products made thereof
JP2003293293A (en) * 2002-03-29 2003-10-15 Nippon Paper Industries Co Ltd Coated paper for gravure printing
JP4501329B2 (en) * 2002-03-29 2010-07-14 日本製紙株式会社 Coated paper for gravure printing
WO2022062762A1 (en) * 2020-09-28 2022-03-31 刘玉芳 Production process for cotton stalk-molded meal box pulp having byproduct fulvic acid

Also Published As

Publication number Publication date
JP2964785B2 (en) 1999-10-18

Similar Documents

Publication Publication Date Title
AU2009280359B2 (en) Processes for preparing coated printing papers using hardwood mechanical pulps
JP5332501B2 (en) Coated paper for printing
JPWO2010113805A1 (en) Coated paper
GB2085492A (en) High mineral composite fine paper
JP2009263853A (en) Coated paper for offset printing
JP4911876B2 (en) Dull tone coated paper for printing
WO2019132001A1 (en) Paper containing cellulose nanofibers
JP2001288692A (en) Method for producing paper
JP3067332B2 (en) Medium coated paper for offset
JP2964785B2 (en) Base paper for coated paper for printing
JP2008088621A (en) Newsprint paper for offset printing
JP3738668B2 (en) Low density book paper
JP2001234497A (en) Flexible printing paper
JP2005336678A (en) Woodfree paper
CN100560866C (en) The photogravure coated paper
JPH07189168A (en) Bulky paper
JP2770840B2 (en) Base paper for coated paper for gravure printing
JP3852470B2 (en) Paper manufacturing method
JP2991251B2 (en) Medium coated paper for gravure
JP2002069890A (en) Water-resistant printing paper
JP4594151B2 (en) Coated paper for printing and method for producing the same
JP5155925B2 (en) Newspaper
JP5008541B2 (en) Printing paper
JP2003293284A (en) Uncoated printing paper
JP2003293283A (en) Coated paper for printing

Legal Events

Date Code Title Description
FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20080813

Year of fee payment: 9

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090813

Year of fee payment: 10

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090813

Year of fee payment: 10

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100813

Year of fee payment: 11

LAPS Cancellation because of no payment of annual fees