JPH01139898A - Filler yield enhancing method in neutral paper - Google Patents
Filler yield enhancing method in neutral paperInfo
- Publication number
- JPH01139898A JPH01139898A JP29073087A JP29073087A JPH01139898A JP H01139898 A JPH01139898 A JP H01139898A JP 29073087 A JP29073087 A JP 29073087A JP 29073087 A JP29073087 A JP 29073087A JP H01139898 A JPH01139898 A JP H01139898A
- Authority
- JP
- Japan
- Prior art keywords
- bentonite
- slurry
- calcium carbonate
- papermaking
- added
- 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.)
- Pending
Links
- 239000000945 filler Substances 0.000 title claims abstract description 13
- 230000007935 neutral effect Effects 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title claims abstract description 6
- 230000002708 enhancing effect Effects 0.000 title 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 16
- 239000000440 bentonite Substances 0.000 claims abstract description 13
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229920006317 cationic polymer Polymers 0.000 claims abstract description 12
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 8
- 230000014759 maintenance of location Effects 0.000 claims abstract description 5
- 239000013055 pulp slurry Substances 0.000 claims abstract description 4
- 229910000281 calcium bentonite Inorganic materials 0.000 claims abstract 3
- 239000011268 mixed slurry Substances 0.000 claims description 2
- 229910000278 bentonite Inorganic materials 0.000 abstract description 10
- 239000000203 mixture Substances 0.000 abstract description 8
- 239000002002 slurry Substances 0.000 abstract description 7
- 125000002091 cationic group Chemical group 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 150000001768 cations Chemical class 0.000 abstract description 2
- 239000011362 coarse particle Substances 0.000 abstract description 2
- 239000004576 sand Substances 0.000 abstract description 2
- 150000001450 anions Chemical class 0.000 abstract 1
- 239000000701 coagulant Substances 0.000 abstract 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 abstract 1
- 239000003610 charcoal Substances 0.000 description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000002378 acidificating effect Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 239000005995 Aluminium silicate Substances 0.000 description 3
- 235000012211 aluminium silicate Nutrition 0.000 description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004513 sizing Methods 0.000 description 3
- 239000000454 talc Substances 0.000 description 3
- 229910052623 talc Inorganic materials 0.000 description 3
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 2
- 240000001931 Ludwigia octovalvis Species 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 239000004902 Softening Agent Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- -1 alkyl ketene dimers Chemical class 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Paper (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は中性抄紙における填料歩留向上法に関するもの
であり、填料である炭カルをベントナイトとの混合スラ
リーとして高濃度紙料に添加し、白水等で稀釈した後、
カチオン性高分子凝集剤を添加する事を特徴とするもの
である′。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for improving filler retention in neutral papermaking, in which carbonaceous filler is added to a high concentration paper stock as a mixed slurry with bentonite, and after dilution with white water etc. ,
It is characterized by the addition of a cationic polymer flocculant.
従来の技術
紙、特に印刷用紙を製造するには従来は填料としてクレ
ー、カオリン、タルク等を添加し、ロジン系サイズ剤を
加え、これに硫酸バンドを加えて酸性側でｐｉｔを４．
５程度どして抄造していた。Conventional technology To manufacture paper, especially printing paper, conventionally, clay, kaolin, talc, etc. are added as fillers, a rosin-based sizing agent is added, and sulfuric acid is added to this to make the pit on the acidic side.
The paper was made about 5 times a day.
填料を加えるのは印刷効果を向上きせること、不透明度
゛を高くすること等が目的であるが、ｐ Ｉ−１が低い
ために製品の耐久性がわるく、長期保存した場合に劣化
によフて紙が着色し、極端な場合にはボロボロに分解し
てしまうという欠点があった。また酸性抄紙では装置の
腐蝕も大きいという欠点があり、中性ないしアルカリ性
で抄紙することが望まれていた。The purpose of adding fillers is to improve the printing effect and increase opacity, but the low p I-1 reduces the durability of the product, and when it is stored for a long period of time, it deteriorates and becomes opaque. The drawback was that the paper would become colored and, in extreme cases, would fall apart. In addition, acidic papermaking has the disadvantage that the equipment is subject to significant corrosion, so it has been desired to make paper in neutral or alkaline conditions.
硫酸バンドで酸性にする理由はロジンサイズ剤の紙への
定着にどうしても硫酸バンドが必要であり、これを他の
定着剤、たとえばカチオンポリマー等に代替することが
できなかったことによるものである。しかし近来アルキ
ルケテンダイマー等の中性サイズ剤が開発され、製紙方
法が中性化に移行しつつあり、ヨーロッパなどではずで
に５０％以上が中性抄紙に転換している現状である。The reason why sulfuric acid is used to make it acidic is that sulfuric acid is absolutely necessary for fixing the rosin sizing agent to paper, and it was not possible to replace it with other fixing agents such as cationic polymers. However, in recent years, neutral sizing agents such as alkyl ketene dimers have been developed, and paper manufacturing methods are shifting to neutral papermaking, with more than 50% of paper making in Europe and other countries having already converted to neutral papermaking.
中性化によるメリットは紙の耐久性の向上、装置の腐蝕
の減少の他にも填料として炭酸カルシウムを使用でさる
点にある。The benefits of carbonation include improved paper durability, reduced equipment corrosion, and the use of calcium carbonate as a filler.
酸性抄紙で填料として使用しているタルク、カオリン等
は量的にも質的にも国内産は劣り、殆ど輸入に頼ってい
るのが現状である。ところが中性抄紙の場合には国内で
豊富に採取できる炭酸カルシウムを使用できるのでコス
ト的にも有利である。Domestic production of talc, kaolin, etc. used as fillers in acid papermaking is inferior both in quantity and quality, and currently most of the materials are imported. However, in the case of neutral papermaking, calcium carbonate, which is abundantly available in Japan, can be used, which is advantageous in terms of cost.
中性抄紙で最も大きな問題は炭酸力ルシウ１１填料の歩
留向上である。酸性抄紙の填料として使用されるタルク
やカオリンは表面がかなり強く負に帯電しているために
、カチオン性ポリマーで良好にフロック化を生じて歩留
を向上きせることができるのに対して炭酸カルシウムは
表面の帯電が弱く、また正に帯電しているものもあって
、ポリマーによる凝集が極めて弱い。The biggest problem in neutral papermaking is improving the yield of carbonated Luci-11 filler. Talc and kaolin, which are used as fillers in acidic papermaking, have very strongly negatively charged surfaces, so cationic polymers can easily form flocs and improve yields, whereas calcium carbonate have weak surface charges, and some are positively charged, so aggregation by polymers is extremely weak.
従来の技術における問題点
ポリマーによる凝集力が弱い為、炭酸カルシウムの歩留
は低く、原料費のロスや回収装置の負荷増大ばかりでは
なく、ワイヤーの摩耗がはげしくなる等の弊害も惹起す
るに、至った。Problems with conventional technology Due to the weak cohesive force of the polymer, the yield of calcium carbonate is low, which not only causes loss of raw material costs and increased load on recovery equipment, but also causes problems such as increased wire wear. It's arrived.
問題点を解決する為の手段
本発明は上記欠点を改良する為、炭カルに前処理を施す
事により、カチオン性高分子アて集剤の歩留効果を向上
きせる方法に関するものである。本発明に用いられるカ
チオン性高分子凝集剤は
下記式−（１）の構造を有するカチオン性モノマーとア
クリルアミドの共重合物が使用される。Means for Solving the Problems In order to improve the above-mentioned drawbacks, the present invention relates to a method for improving the retention effect of a cationic polymer aggregator by pre-treating the coal. The cationic polymer flocculant used in the present invention is a copolymer of a cationic monomer and acrylamide having a structure represented by the following formula (1).
ＣＨ２＝ＣＲ２
ＣＡ Ｂ Ｎ Ｒ４Ｘ （１）０
Ｒ３
本カチオン性高分子の望ましい物性は、１規定食塩水中
における極限粘度が５ｄＱ／ｇ以上であり、カチオン当
量値が１．０〜３．５ｍ ｅ ｑ ／ ｇの範囲である
。CH2=CR2 CA B N R4X (1) 0
R3 Desirable physical properties of the present cationic polymer are that the intrinsic viscosity in 1N saline is 5 dQ/g or more, and the cation equivalent value is in the range of 1.0 to 3.5 m eq / g.
ベントナイトは比表面積が大きく膨潤性の高い事が望ま
しいが、砂等の粗粒異物を含まぬかぎり市販のベントナ
イトを使用する事ができる。Bentonite preferably has a large specific surface area and high swelling property, but commercially available bentonite can be used as long as it does not contain coarse particles such as sand.
木ベントナイトを炭カルに対し１〜５重−ｆｆ（、９（
。1 to 5 times -ff(, 9(
.
を混合して用いる。両者の混合はスラリー状態で行う事
もできる。しかし望ましくはベントナイトと炭カルを粉
末状態で混合した後、スラリー化する方が簡便である。Mix and use. The two can also be mixed in the form of a slurry. However, it is preferable to mix bentonite and charcoal in a powder state and then form the mixture into a slurry.
炭カルとベントナイト ンチエストや種箱に添加される。Charcoal and bentonite It is added to seeds and seed boxes.
カチオン性高分子凝集剤の添加場所はスクリーン後の添
加が最も歩留効果が高く、スクリーン前、ファンポンプ
の順に歩留効果は落ちるが地合荒れの恐れは少なくなる
。Regarding the place where the cationic polymer flocculant is added, the yield effect is highest when added after the screen, and the yield effect decreases in that order before the screen and then at the fan pump, but the risk of rough formation is reduced.
カチオン性高分子凝集剤の添加量は対バルブ０、０１〜
０．２重量％であり、分散性を良くする為、カチオン性
高分子凝集剤は
０、３％以下の低濃度溶液として添加きれる。The amount of cationic polymer flocculant added is 0, 01 to 1 for the valve.
The amount is 0.2% by weight, and in order to improve dispersibility, the cationic polymer flocculant can be added as a low concentration solution of 0.3% or less.
作用
本願発明における炭カルとベントナイトの混合物が炭カ
ル単独よりも歩留効果の高い理由は、炭カル粒子表面を
ベントナイトが被覆する事により、高分子凝集剤による
架橋吸着が起こり易くなるものと考えられる。Effect The reason why the mixture of charcoal and bentonite in the present invention has a higher retention effect than charcoal alone is that the surface of the charcoal particles is coated with bentonite, making it easier for cross-linking adsorption by the polymer flocculant to occur. It will be done.
実施例 表−１に記載する組成の高分子を試験に供した。Example Polymers having the compositions listed in Table 1 were tested.
但し、下記の如くモノマー名を略記した。However, the monomer names are abbreviated as shown below.
ＡＡｍ？アクリルアミド
ＤＡＣ：アクリロイロオシエチルトリメヂルアンモニウ
ムクロライド
試験方法
ベントナイト（クニゲルＶＡ）と炭カル（′■゛Ｐ−１
２１）の事前混合物を炭カル濃度１０％のスラリーに調
整する。Ｌ Ｂ Ｋ Ｐシートを離解後叩解してＣ３Ｃ
３Ｆ３４Ｏのパルプスラリーを作り、前記填料スラリー
を炭カルの添加量として対バルブ４０重量％添加後、カ
チオン澱粉（ＣＡＴＯ−Ｆ２）を対バルブ０．５重量％
添加混合し、バルブ濃度を１％に調整したものを紙料と
した。AAm? Acrylamide DAC: Acryloylooethyltrimedyl ammonium chloride Test method Bentonite (Kunigel VA) and Charcoal ('■゛P-1
Adjust the pre-mixture in step 21) to a slurry with a carbonaceous concentration of 10%. After disintegrating and beating the L B K P sheet, it becomes C3C.
A pulp slurry of 3F34O was made, and after adding the filler slurry to charcoal in an amount of 40% by weight based on the bulb, cationic starch (CATO-F2) was added at 0.5% by weight based on the bulb.
The mixture was added and mixed, and the bulb concentration was adjusted to 1%, which was used as paper stock.
Ｌ記紙料に・す′イズ剤（バーコン４０Ｗ）を対バルブ
０．２５％、カチオン性高分子凝集剤を対バルブ０．０
２％添加し、スタークーで３０Ｏｒｐｍ３０秒間の撹拌
を行い、ダイナミックジャーテスターにより歩留試験を
行った結果を表−２に示す。Add 0.25% of a softening agent (Burcon 40W) to the L paper stock and 0.0% of a cationic polymer flocculant to the valve.
Table 2 shows the results of a yield test using a dynamic jar tester after adding 2% and stirring for 30 seconds at 30 rpm using a starcooter.
歩留試験結果
比較例
炭カルとベントナイトを別個にバルブスラリーに添加す
る以外は実施例と同様に歩留試験を行った結果を表−３
に示す。Comparative Example of Yield Test Results Table 3 shows the results of a yield test conducted in the same manner as in the example except that coal cal and bentonite were added separately to the valve slurry.
Shown below.
Claims (1)
した後、パルプスラリーに添加混合した紙料にカチオン
性高分子凝集剤を添加する事を特徴とする、中性抄紙に
おける填料歩留向上方法。 ２、炭酸カルシウムとベントナイトの混合比が１００：
１〜１００：５である特許請求の範囲第１項に記載せる
中性抄紙の填料歩留向上方法。[Scope of Claims] 1. A filler step in neutral paper making characterized by adding a cationic polymer flocculant to the pulp slurry after making a mixed slurry of calcium carbonate and bentonite. Method for retaining. 2. The mixing ratio of calcium carbonate and bentonite is 100:
1 to 100:5. A method for improving filler retention in neutral papermaking as set forth in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29073087A JPH01139898A (en) | 1987-11-19 | 1987-11-19 | Filler yield enhancing method in neutral paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29073087A JPH01139898A (en) | 1987-11-19 | 1987-11-19 | Filler yield enhancing method in neutral paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01139898A true JPH01139898A (en) | 1989-06-01 |
Family
ID=17759783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29073087A Pending JPH01139898A (en) | 1987-11-19 | 1987-11-19 | Filler yield enhancing method in neutral paper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01139898A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0345799A (en) * | 1989-07-11 | 1991-02-27 | Mitsubishi Paper Mills Ltd | Production of paper |
| JP2005281922A (en) * | 2004-03-30 | 2005-10-13 | Kurita Water Ind Ltd | Method for producing paper and cardboard |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59137600A (en) * | 1983-01-20 | 1984-08-07 | 日東化学工業株式会社 | Neutral papermaking method |
| JPS6163798A (en) * | 1984-04-21 | 1986-04-01 | 丸尾カルシウム株式会社 | Filler composition for paper and neutral papermaking method using the same |
-
1987
- 1987-11-19 JP JP29073087A patent/JPH01139898A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59137600A (en) * | 1983-01-20 | 1984-08-07 | 日東化学工業株式会社 | Neutral papermaking method |
| JPS6163798A (en) * | 1984-04-21 | 1986-04-01 | 丸尾カルシウム株式会社 | Filler composition for paper and neutral papermaking method using the same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0345799A (en) * | 1989-07-11 | 1991-02-27 | Mitsubishi Paper Mills Ltd | Production of paper |
| JP2005281922A (en) * | 2004-03-30 | 2005-10-13 | Kurita Water Ind Ltd | Method for producing paper and cardboard |
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