JP2559327B2 - Method to prevent the adhesion of resin or fixed substances - Google Patents
Method to prevent the adhesion of resin or fixed substancesInfo
- Publication number
- JP2559327B2 JP2559327B2 JP5127967A JP12796793A JP2559327B2 JP 2559327 B2 JP2559327 B2 JP 2559327B2 JP 5127967 A JP5127967 A JP 5127967A JP 12796793 A JP12796793 A JP 12796793A JP 2559327 B2 JP2559327 B2 JP 2559327B2
- Authority
- JP
- Japan
- Prior art keywords
- paper
- pulp
- melamine
- machinery
- resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching
- D21C9/086—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching with organic compounds or compositions comprising organic compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/47—Condensation polymers of aldehydes or ketones
- D21H17/49—Condensation polymers of aldehydes or ketones with compounds containing hydrogen bound to nitrogen
- D21H17/51—Triazines, e.g. melamine
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/02—Agents for preventing deposition on the paper mill equipment, e.g. pitch or slime control
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
- Bipolar Integrated Circuits (AREA)
- Semiconductor Integrated Circuits (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
- Cable Accessories (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Working-Up Tar And Pitch (AREA)
Abstract
Description
【０００１】本発明は、パルプ及び紙製造工程での樹脂
分または固着物質の付着の防止及び／または制御に非水
溶性メラミンアルデヒド型ポリマー酸性コロイドを用い
ることに係わる。本発明は特に、パルプ及び紙製造工程
で用いられる機械類への樹脂分の付着の防止、並びにパ
ルプ及び紙製造工程で用いられる機械類からの樹脂分の
除去に係わる。本発明はまた、二次繊維パルプ及び紙製
造工程で用いられる機械類への固着物質の付着の防止、
並びに二次繊維パルプ及び紙製造工程で用いられる機械
類からの固着物質の除去にも係わる。[0001] The present invention relates to the use of a water-insoluble melamine aldehyde type polymer acidic colloid for preventing and / or controlling the adhesion of resin components or fixed substances in pulp and paper manufacturing processes. The invention particularly relates to the prevention of resin deposits on machinery used in pulp and paper manufacturing processes, and the removal of resin components from machinery used in pulp and paper manufacturing processes. The present invention also prevents the adhesion of sticking substances to machinery used in secondary fiber pulp and paper manufacturing processes,
It also concerns the removal of sticking substances from machinery used in secondary fiber pulp and paper manufacturing processes.
【０００２】[0002]
【従来の技術】樹脂分、固着物質（ｓｔｉｃｋｉｅｓ）
及び粘着物質（ｔａｃｋｉｅｓ）は、パルプ及び紙製造
工場において以前から問題となっている。樹脂分や固着
及び粘着物質がパルプ及び紙製造機械類に、また最終製
品としての紙に付着することによって惹起される問題
は、パルプ及び紙製造工業に、生産停止により毎年何百
万ドルもの損害をもたらしていると考えられる。本明細
書中に用いた“樹脂分”という語は通常、木材の抽出画
分に由来し、きわめて様々な組成を有する、樹脂を主成
分とする任意の付着物を意味すると定義できる。木材の
抽出画分は、木材の四つの主要成分の一つである。他の
三つはセルロース、リグニン及びヘミセルロースであ
る。抽出画分は、水、アルコール、ベンゼン、エーテ
ル、及び／またはアセトンに溶解し得る物質の複雑な混
合物であると定義される。通常木材の重量の約３〜１０
％を占める抽出画分は、低分子量炭水化物、テルペン、
芳香族酸、脂肪酸、アルコール、タンニン、色素、タン
パク質、リグニン、アルカロイド及び可溶性リグニンの
ような成分を含有する。2. Description of the Related Art Resin components and sticky substances (stickies)
And tackies have long been a problem in pulp and paper mills. The problems caused by resin content, sticking and sticky substances adhering to pulp and paper making machinery and to paper as a final product are the pulp and paper manufacturing industry, which costs millions of dollars each year due to outages. It is thought to have brought about. The term "resin content" as used herein can be defined to mean any resin-based deposit, usually derived from the extracted fractions of wood, and having very different compositions. The extracted fraction of wood is one of the four main constituents of wood. The other three are cellulose, lignin and hemicellulose. The extractable fraction is defined as a complex mixture of substances soluble in water, alcohol, benzene, ether and / or acetone. About 3 to 10 times the weight of normal wood
The extracted fraction, which accounts for%, is composed of low-molecular weight carbohydrates, terpenes,
Contains components such as aromatic acids, fatty acids, alcohols, tannins, pigments, proteins, lignins, alkaloids and soluble lignins.
【０００３】本明細書中に用いた“固着物質”という語
と“粘着物質”という語とは互いに置き換え可能であ
り、これらの語は二次繊維中に見いだされる合成異物
（ｃｏｎｔｒａｒｉｅｓ）を主として意味する。例え
ば、固着物質及び粘着物質には二次繊維中に見いだされ
るインキ残留物、タール、ラテックス及び加熱融解汚染
物質が非限定的に含まれる。このように、固着物質及び
粘着物質は、上段に定義したような木材の抽出画分に由
来するきわめて様々な組成の、樹脂を主成分とする付着
物である樹脂分から区別される。樹脂分の成分は、固着
物質に含まれる合成化合物とは対照的に天然に生じる。
樹脂分と固着物質とは、製紙工程で類似の問題を惹起す
るが、その由来の点でも組成の点でも互いに異なってい
る。As used herein, the terms "adhesive" and "adhesive" are interchangeable, and these terms primarily refer to synthetic contaminants found in secondary fibers. To do. For example, sticking substances and tackifying substances include, but are not limited to, ink residues, tars, latices and hot melt contaminants found in secondary fibers. Thus, sticky substances and sticky substances are distinguished from resinous components, which are resin-based deposits of very different composition, derived from the extracted fraction of wood as defined above. The resin component occurs naturally as opposed to the synthetic compounds contained in the sticky material.
The resin component and the fixing substance cause a similar problem in the paper manufacturing process, but they are different from each other in the origin and the composition.
【０００４】樹脂分はパルプ及び紙の製造で大きな問題
となる。なぜなら樹脂分は（１）凝集し、また他の物質
を取り込んで最終製品紙の中に目に見える“ごみ”を形
成し、（２）パルプ及び紙製造工程で用いられるスクリ
ーン、フィルターリファイナー、パルプ洗浄機及び抄紙
機などの機械類上で析出堆積し、かつ（３）パルプの白
色度及び白色安定度を低下させるからである。パルプ及
び紙の製造機械類及び最終製品紙に付着する樹脂分の組
成及び量は、木が伐採された季節、木材の種類、及び用
いられるパルプ製造法の如何によって様々となる。例え
ば、早春及び早秋に伐採された木から製造された木材パ
ルプは通常、その他の季節に伐採された木から製造され
た木材パルプより多量の樹脂分を含有する。針葉樹クラ
フトパルプを製造する製紙工場で付着する樹脂分は広葉
樹クラフトパルプを製造する製紙工場で付着する樹脂分
より大きいアビエチン酸対脂肪酸エステル比を有する傾
向に有り、また樹脂分付着の問題は通常、亜硫酸パルプ
を製造する製紙工場での方が幾分重大である。亜硫酸パ
ルプ製造工程では樹脂及び脂肪酸エステルが約半分しか
除去されず、これらの物質の相当部分はセルロース繊維
内に捕捉されたままである。しかし、捕捉された上記物
質はパルプ及び紙製造工程の剪断力によって解放され、
即ち樹脂分の付着は紙料製造区域内及び抄紙機において
より起こりやすい。樹脂分の問題は、砕木パルプ、ＴＭ
Ｐ、ＣＴＭＰ及びセミケミカルパルプなどの機械パルプ
を特に針葉樹を用いて製造する工程を実施する製紙工場
で実に厄介となる恐れが有る。なぜなら、脂肪酸エステ
ル及び樹脂エステルの化学分解がほとんど行なわれない
からである。化学分解しないので、上記物質は洗浄によ
って除去されず、パルプ製造工程の水性系中に分散した
ままとなりがちである。Resin content poses a major problem in the production of pulp and paper. Because the resin content (1) aggregates and incorporates other substances to form a visible "dust" in the final product paper, (2) pulp and screens used in paper making processes, filter refiners, pulp This is because they are deposited and deposited on machines such as a washing machine and a paper machine, and (3) the whiteness and white stability of the pulp are reduced. The composition and amount of resin deposited on pulp and paper making machinery and finished product paper will vary depending on the season when the tree was felled, the type of wood, and the pulping process used. For example, wood pulp produced from trees harvested in early spring and early fall typically contains higher amounts of resin than wood pulp produced from trees harvested in other seasons. The resin component attached at the paper mill producing the softwood kraft pulp tends to have a larger abietic acid to fatty acid ester ratio than the resin component attached at the paper mill producing the hardwood kraft pulp, and the problem of resin component attachment is usually It is somewhat more important in the paper mill that produces sulfite pulp. The sulfite pulping process removes only about half the resin and fatty acid esters, leaving a significant portion of these materials entrapped within the cellulosic fibers. However, the trapped material is released by the shear forces of the pulp and paper manufacturing process,
That is, the adhesion of the resin component is more likely to occur in the stock production area and in the paper machine. The problem of resin content is groundwood pulp, TM
It can be really troublesome at a paper mill that carries out the process of producing mechanical pulp such as P, CTMP and semi-chemical pulp, especially using softwood. This is because the fatty acid ester and the resin ester are hardly chemically decomposed. Since they do not chemically decompose, the substances are not removed by washing and tend to remain dispersed in the aqueous system of the pulp making process.
【０００５】固着及び粘着物質は二次繊維パルプ及び紙
の製造で大きな問題となり、なぜなら該物質も樹脂分同
様（１）凝集し、また他の物質を取り込んで最終製品紙
の中に目に見える“ごみ”を形成し、（２）パルプ及び
紙製造工程で用いられるスクリーン、フィルターリファ
イナー、パルプ洗浄機及び抄紙機などの機械類上で析出
堆積し、かつ（３）パルプの白色度及び白色安定度を低
下させるからである。パルプ及び紙の製造機械類及び最
終製品紙に付着する固着物質の組成及び量は、パルプの
製造に用いられる二次繊維の種類と共に様々である。本
明細書中に用いた“二次繊維”という語は、最終製品紙
の製造に２度目に用いられる任意の紙繊維を意味する。Sticking and sticking substances present a major problem in the production of secondary fiber pulps and papers, because they also (1) aggregate like resin and also incorporate other substances which are visible in the final product paper. It forms “garbage” and (2) deposits and deposits on machinery used in pulp and paper manufacturing processes such as screens, filter refiners, pulp washers and paper machines, and (3) whiteness and white stability of pulp. This is because it reduces the degree. The composition and amount of sticky material deposited on pulp and paper making machinery and final product paper varies with the type of secondary fiber used to make the pulp. The term "secondary fiber" as used herein means any paper fiber that is used a second time to make the final product paper.
【０００６】二次繊維の供給源には、薄葉紙、上質紙、
箱用板紙、段ボール用ライナ、フットボード（ｆｏｏｔ
ｂｏａｒｄ）及び新聞用紙が非限定的に含まれる。これ
らの供給源は通常、インキ、着色剤、填料、紙力増強用
樹脂及び／または被膜といった、それぞれに独得の不純
物を伴い、このことは固着物質の組成及び濃度が個々の
二次繊維毎にきわめて様々であり得ることを意味する。Sources of secondary fibers include thin paper, fine paper,
Boxboard, corrugated liner, footboard (foot)
board) and newsprint. These sources are usually accompanied by their own impurities, such as inks, colorants, fillers, paper-strengthening resins and / or coatings, which means that the composition and concentration of the fixing substance is different for each secondary fiber. It means that it can be very different.
【０００７】パルプ製造工程での炭酸カルシウムの存在
は、樹脂分及び／または固着物質がパルプ及び紙製造機
械類に付着する問題を悪化させる。結晶化した炭酸カル
シウムは、沈澱する金属石鹸に核生成地点を提供するこ
とによって、他の粒子と融合して樹脂分付着物を形成す
る疎水性粒子を生じさせる恐れが有る。The presence of calcium carbonate in the pulp making process exacerbates the problem of resin and / or sticking materials adhering to pulp and paper making machinery. Crystallized calcium carbonate can provide hydrophobic particles that fuse with other particles to form resin deposits by providing nucleation sites for the precipitating metal soap.
【０００８】パルプ及び／または紙製造工程に制御剤を
加えることによって樹脂分または固着物質問題を排除す
る多くの試みが長年にわたって為されてきた。パルプ洗
浄を更に徹底することも樹脂分または固着物質問題を軽
減する一助となり得るが、最も通常の処理方法は完成紙
料に分散剤または吸着填料を添加することを含む。例え
ば、ミョウバン、タルク、ポリナフタレンスルホネート
や改質リグノスルホネートなどのアニオン性樹脂分制御
剤、ポリ第四アンモニウムポリマーなどのカチオン性樹
脂分制御剤、メチルセルロース誘導体及びノニオン界面
活性剤を用いて処理が行なわれ得る。これらの処理はい
ずれも特に有効とは考えられない。Many attempts have been made over the years to eliminate resin or sticking matter problems by adding control agents to the pulp and / or paper manufacturing process. Although more thorough pulp washing can also help alleviate the resin content or sticking matter problem, the most common processing method involves adding dispersants or adsorbent fillers to the furnish. For example, the treatment is carried out by using an anionic resin content control agent such as alum, talc, polynaphthalene sulfonate or modified lignosulfonate, a cationic resin content control agent such as polyquaternary ammonium polymer, a methyl cellulose derivative and a nonionic surfactant. Can be None of these treatments are considered particularly effective.
【０００９】ポリ第四アンモニウムポリマーを樹脂分制
御剤として用いる例は、米国特許第３，５８２，４６１
号に見いだすことができる。この特許には、パルプ及び
紙製造工程で用いられる機械類への樹脂分の付着の防止
に水溶性のジシアンジアミド−ホルムアルデヒド縮合物
を用いることが開示されている。これに対して、本発明
では非水溶性の酸コロイドを用いる。An example of using a polyquaternary ammonium polymer as a resin component control agent is disclosed in US Pat. No. 3,582,461.
Can be found in the issue. This patent discloses the use of a water-soluble dicyandiamide-formaldehyde condensate to prevent the deposition of resin components on machinery used in pulp and paper manufacturing processes. On the other hand, in the present invention, a water-insoluble acid colloid is used.
【００１０】別の種類の化合物または方法で樹脂分を制
御する試みの例が、米国特許第３，８１２，０５５号、
同第３，８９５，１６４号、同第３，８９６，０４６
号、同第３，９９２，２４９号及び同第４，３１３，７
９０号に見いだされる。Examples of attempts to control resin content with another class of compounds or methods are described in US Pat. No. 3,812,055,
No. 3,895,164, No. 3,896,046
No. 3,992,249 and 4,313,7
Found in No. 90.
【００１１】樹脂分の制御にはジルコニウム化学物質も
用いられた。例えば米国特許第４，９５０，３６１号を
参照されたい。Zirconium chemistries have also been used to control resin content. See, eg, US Pat. No. 4,950,361.
【００１２】本発明で用いる非水溶性メラミンホルムア
ルデヒド型ポリマー酸性コロイドは水処理、特にペイン
ト吹き付け室の処理で広く用いられている。例えば米国
特許第４，６５６，０５９号、同第４，６２９，５７２
号、同第４，９３５，１４９号及び同第５，０６８，２
７９号を参照されたい。The water-insoluble melamine formaldehyde type polymer acidic colloid used in the present invention is widely used in water treatment, especially in a paint spraying chamber. For example, U.S. Pat. Nos. 4,656,059 and 4,629,572
Nos. 4,935,149 and 5,068,2
See No. 79.
【００１３】しかし、非水溶性メラミンホルムアルデヒ
ド型ポリマー酸性コロイドを製紙工程で樹脂分または固
着物質の付着の制御に用いることは当分野で知られてお
らず、または示唆されていない。However, the use of water-insoluble melamine formaldehyde type polymer acidic colloids for controlling the adhesion of resin components or sticking substances in the papermaking process is not known or suggested in the art.
【００１４】先に述べたように、本発明は製紙工程での
樹脂分または固着物質付着の防止及び／または制御に係
わる。樹脂分は天然に生じる樹脂状物質と、製紙の篩
別、蒸解及び叩解工程で放出されるガム質とを含む物質
と定義され、固着物質は完成紙料に添加される合成添加
物と定義される。固着物質は特に、典型的には抄紙機に
供給される完成紙料中に再生繊維と共に導入される、紙
及び板紙の加工に用いられる有機物質がもたらす粘着性
付着物であると定義される。“固着物質”という呼称
は、生じた付着物が抄紙機のワイヤ、フェルトその他の
部分に固着することに由来する。固着物質は、ホットメ
ルト接着剤及び感圧接着剤からインキのための結合剤及
び被膜や湿潤紙力増強用樹脂までの合成物質の種々の混
合物である。ポリマーの例には、ポリエチレン、ポリブ
タジエン−スチレン、ポリビニルアセテート及びポリア
クリレートなどが含まれる。As described above, the present invention relates to prevention and / or control of resin component or adhered substance adhesion in the paper manufacturing process. Resin content is defined as a material that includes naturally occurring resinous materials and gums that are released during the papermaking sieving, cooking and beating steps, and sticking materials are defined as synthetic additives that are added to the furnish. It Sticking substances are defined in particular as tacky deposits resulting from organic substances used in the processing of paper and paperboard, which are typically introduced with recycled fibers into the furnish fed to a paper machine. The name "sticking substance" comes from the fact that the resulting deposits stick to the wires, felts and other parts of the paper machine. Fixing materials are various mixtures of synthetic materials, from hot melt and pressure sensitive adhesives to binders and coatings for inks and wet strength resins. Examples of polymers include polyethylene, polybutadiene-styrene, polyvinyl acetate, polyacrylates and the like.
【００１５】[0015]
【発明が解決しようとする課題】本発明は、パルプ及び
／または紙製造機械類、特に湿潤側の製紙機械類に樹脂
分または固着物質が付着するのを防止し、かつ前記機械
類から付着した樹脂分または固着物質を除去する方法で
あって、前記機械類と接触するパルプスラリーまたは完
成紙料に特定の非水溶性メラミンホルムアルデヒド型ポ
リマー酸性コロイドを有効量で添加することを含む方法
の提供を目的とする。SUMMARY OF THE INVENTION The present invention is directed to preventing and adhering resinous or adherent substances to pulp and / or papermaking machinery, especially wet side papermaking machinery. A method for removing a resin component or a fixed substance, which comprises adding an effective amount of a specific water-insoluble melamine formaldehyde-type polymer acidic colloid to a pulp slurry or a furnish which is in contact with the machinery. To aim.
【００１６】[0016]
【課題を解決するための手段】本発明は、製紙設備もし
くは機械類に樹脂分が付着するのを防止し、及び／また
は前記設備もしくは機械類から存在する樹脂分付着物を
除去する方法であって、前記設備もしくは機械類と接触
する、樹脂分を含有する完成紙料、紙料または製紙流に
有効量の非水溶性メラミンホルムアルデヒド型ポリマー
酸性コロイドを添加することを含む方法を提供する。SUMMARY OF THE INVENTION The present invention is a method for preventing resin content from adhering to papermaking equipment or machinery and / or removing resin content deposits present from said equipment or machinery. Thus, there is provided a method comprising adding an effective amount of a water-insoluble melamine formaldehyde-type polymeric acidic colloid to a resin-containing furnish, paper stock or papermaking stream in contact with the equipment or machinery.
【００１７】本発明はまた、二次繊維利用の製紙設備も
しくは機械類に固着物質及び／または粘着物質が付着す
るのを制御及び／または防止し、及び／または前記設備
もしくは機械類から存在する固着／粘着物質付着物を除
去する方法であって、前記設備もしくは機械類と接触す
る、固着もしくは粘着物質を含有する二次繊維完成紙
料、紙料または製紙流に有効量の非水溶性メラミンホル
ムアルデヒド型ポリマー酸性コロイドを添加することを
含む方法も提供する。The present invention also controls and / or prevents adherence of sticking substances and / or adhesives to papermaking equipment or machinery utilizing secondary fibers, and / or sticking present from said equipment or machinery. / A method for removing sticky substance deposits, which comprises a secondary fiber furnish containing fixed or sticky substances, which is in contact with the above-mentioned equipment or machinery, a stock or a water-soluble melamine formaldehyde effective amount for papermaking flow Methods are also provided that include adding a polymeric acid colloid of the type.
【００１８】非水溶性メラミンホルムアルデヒド型ポリ
マー酸性コロイドは有効量で用いなければならない。本
明細書中に用いた“非水溶性メラミンホルムアルデヒド
型ポリマー酸性コロイド”という語は、（ａ）メラミン
または置換メラミンと、（ｂ）式The water-insoluble melamine formaldehyde type polymer acidic colloid must be used in an effective amount. As used herein, the term "water-insoluble melamine formaldehyde-type polymeric acidic colloid" refers to (a) melamine or substituted melamine and (b) formula
【００１９】Ｒ１−Ｃ（＝Ｏ）−Ｒ２ 〔式中、互いに同じであっても異なっていてもよいＲ１
及びＲ２はＨ並びに直鎖及び分枝鎖Ｃ１〜Ｃ４アルキル
基の中から選択される〕によって表わされる化合物とを
含むポリマーを意味する。（ｂ）の好ましい化合物はア
ルデヒドを含み、アルデヒドはメタナール（ホルムアル
デヒド）、エタナール及びプロパナールが特に好まし
く、最も好ましいアルデヒドはホルムアルデヒドであ
る。また、本発明で用いる非水溶性メラミンホルムアル
デヒド型ポリマー酸性コロイド中には尿素及び／または
ジシアンジアミドなどを含めた付加的な物質が適量存在
してもよい。R1-C (= O) -R2 [Wherein R may be the same or different from each other]1
And R2Is H and linear and branched C1~ C4Alkyl
Selected from the group] and
It means a polymer containing. Preferred compounds of (b) are
Contains aldehyde, the aldehyde is methanal (formal
Dehydr), ethanal and propanal are particularly preferred
The most preferred aldehyde is formaldehyde
You. In addition, the water-insoluble melamine formaldehyde used in the present invention
Urea and / or urea in the acidic polymer colloid
Suitable amount of additional substances including dicyandiamide
May be.
【００２０】しかし、成分（ａ）対成分（ｂ）のモル比
は付加的物質の存否にかかわりなく約１：１から約１：
６であるべきであり、約１：１から１：３であれば好ま
しい。最も好ましいモル比は、メラミンまたはメラミン
誘導体約１モルに対してアルデヒド約２〜２．５モルで
ある。即ち、最も好ましいポリマーはメラミンとホルム
アルデヒドとから、メラミン対ホルムアルデヒドのモル
比を約１：２から約１：２．５として製造される。However, the molar ratio of component (a) to component (b) is about 1: 1 to about 1: 1, with or without additional material.
It should be 6, preferably about 1: 1 to 1: 3. The most preferred molar ratio is about 2-2.5 moles of aldehyde to about 1 mole of melamine or melamine derivative. Thus, the most preferred polymer is prepared from melamine and formaldehyde with a melamine to formaldehyde molar ratio of about 1: 2 to about 1: 2.5.
【００２１】本発明で用いるメラミンホルムアルデヒド
型ポリマーは非水溶性である。従ってこのポリマーは、
メラミンポリマーが微細コロイド懸濁状態で安定するよ
うな酸性溶液に添加して用いるのが最良である。このよ
うな好ましい形態の一例に、約１．６〜約２．１のｐＨ
を有するＣａｌｇｏｎ社の製品ＣＡ−２８９が有る。こ
の製品は酸性水溶液中の活性メラミンホルムアルデヒド
ポリマーを８％含有する。メラミンアルデヒド酸性懸濁
液の製造には任意の酸を用い得るが、塩酸であれば好ま
しい。また、アルコールなど、他の安定剤を用いること
も可能である。The melamine formaldehyde type polymer used in the present invention is water-insoluble. Therefore, this polymer
It is best used by adding it to an acidic solution such that the melamine polymer is stable in a fine colloidal suspension. An example of such a preferred form has a pH of about 1.6 to about 2.1.
There is a product CA-289 from Calgon, Inc. This product contains 8% active melamine formaldehyde polymer in acidic aqueous solution. Any acid can be used to produce the melamine aldehyde acidic suspension, but hydrochloric acid is preferred. It is also possible to use other stabilizers such as alcohol.
【００２２】安定な（酸性）懸濁液または溶液中の活性
メラミンポリマーの重量比率は、コスト及び製品の安定
性を考慮すれば約０．１〜約２０％、好ましくは１〜約
１５％、最も好ましくは約４〜約１２％であるべきであ
る。ｐＨは、メラミンアルデヒド型ポリマーを微細コロ
イド懸濁状態に維持するべく十分に小さい値とするべき
である。The weight percentage of active melamine polymer in a stable (acidic) suspension or solution is about 0.1 to about 20%, preferably 1 to about 15%, considering cost and product stability. Most preferably it should be about 4 to about 12%. The pH should be low enough to maintain the melamine aldehyde type polymer in a fine colloidal suspension.
【００２３】非水溶性メラミンアルデヒド型ポリマー酸
性コロイドの分子量はさほど重要でない。しかし、好ま
しい分子量は約５００〜約５０，０００であり、最も好
ましい分子量は約５００〜約５，０００である。先に触
れたように、適当な非水溶性メラミンアルデヒド型ポリ
マー酸性コロイドはＣａｌｇｏｎ社から商品名“ＣＡ−
２８９”及び“ＷＴ−２５１１”の下に市販されてい
る。これらの製品の分子量は約２，２００である。The molecular weight of the water-insoluble melamine aldehyde-type polymeric acidic colloid is not very important. However, the preferred molecular weight is about 500 to about 50,000, and the most preferred molecular weight is about 500 to about 5,000. As mentioned above, a suitable water-insoluble melamine aldehyde type polymer acidic colloid is commercially available from Calgon under the trade name "CA-".
289 "and" WT-2511 ". The molecular weight of these products is about 2,200.
【００２４】有効量の非水溶性メラミンホルムアルデヒ
ド型ポリマー酸性コロイドは処理中の完成紙料、製紙流
または二次繊維流に添加され、またはこれらの中に存続
するべきである。メラミンポリマーは上記のような流れ
の中に存在する樹脂分または固着物質と相互に作用し、
それによって樹脂分または固着物質の付着を防止し、及
び／または製紙設備の表面から該表面に付着した樹脂分
または固着物質を除去する。本明細書中に用いた“有効
量”という語は、所与の系に関して樹脂分または固着物
質の付着防止または除去を所望のように実現する非水溶
性メラミンホルムアルデヒド型ポリマー酸性コロイド量
を意味する。An effective amount of the water-insoluble melamine formaldehyde type polymeric acid colloid should be added to or remain in the furnish, papermaking stream or secondary fiber stream being processed. The melamine polymer interacts with the resin components or sticking substances present in the stream as described above,
Thereby, the resin component or the adhered substance is prevented from adhering and / or the resin component or the adhered substance adhered to the surface of the papermaking equipment is removed. As used herein, the term "effective amount" means the amount of water-insoluble melamine formaldehyde-type polymeric acidic colloid that provides the desired anti-adhesion or removal of resin or sticking material for a given system. .
【００２５】メラミンポリマーは処理中の繊維流に、乾
燥繊維１ｔ当たりの活性ポリマー量が少なくとも約０．
０１ｌｂとなる好ましい用量で断続的または連続的に付
与し得る。更に好ましくは、上記活性ポリマー量は約
０．４０〜約１０．０ｌｂ／ｔに維持するべきである。
非水溶性メラミンホルムアルデヒド型ポリマー酸性コロ
イドの添加は樹脂分除去前であれば任意の適当な場所で
行ない得るが、非水溶性メラミンホルムアルデヒド型ポ
リマー酸性コロイドと樹脂分または固着物質とを最大限
に接触させるように行なうことが好ましい。例えば、非
水溶性メラミンホルムアルデヒド型ポリマー酸性コロイ
ドは褐色紙料洗浄機、デッカー、高密度チェスト、また
は抄紙機の稀釈チェストにおいて添加し得る。また、添
加地点を複数とすることも可能である。The melamine polymer is added to the fiber stream being treated with an amount of active polymer of at least about 0.
It may be given intermittently or continuously at a preferred dose of 01 lb. More preferably, the amount of active polymer should be maintained at about 0.40 to about 10.0 lb / t.
The water-insoluble melamine formaldehyde-type polymer acidic colloid can be added at any suitable place before the resin content is removed. It is preferable to do so. For example, the water-insoluble melamine formaldehyde-type polymeric acidic colloid may be added in a brown stock washer, decker, high density chest, or dilution chest of a paper machine. It is also possible to add a plurality of addition points.
【００２６】[0026]
【実施例】実施例１ ：製紙工場試運転―樹脂分の制御 晒し針葉樹クラフトパルプを製造する製紙工場の、外側
褐色紙料高密度チェストの後段に位置する小型貯蔵チェ
ストに、Ｃａｌｇｏｎ社製品ＣＡ−２８９を供給した。
試運転には新しい木材チップを用いた。処理後の紙料は
スクリーン室を通過し、場合によっては漂白プラントに
向かった。供給速度は、８重量％の活性ポリマーを含有
する上記製品が完成紙料１ｔにつき２〜１０ｌｂの量で
供給されるように設定した。このことは、活性ポリマー
の供給速度が約０．１６〜約０．８ｌｂ／ｔであること
に相当する。Examples Example 1 : Paper mill trial run-control of resin content A small storage chest located after the outer brown stock high density chest of a paper mill that manufactures bleached softwood kraft pulp is used in a Calgon product CA-289. Was supplied.
New wood chips were used for the test run. The treated stock passed through the screen chamber and, in some cases, to the bleach plant. The feed rate was set so that the product containing 8% by weight of active polymer was fed in an amount of 2-10 lbs / t furnish. This corresponds to a feed rate of active polymer of about 0.16 to about 0.8 lb / t.
【００２７】試運転の間にスクリーン室、及び漂白プラ
ントの不良品洗浄コーンを目視観察したところ、これら
に樹脂分が実質的に付着しないことが判明した。更に、
パルプの汚染の程度によって、系中のルースな樹脂分、
即ちコロイド状の、剪断力によって解放された捕捉樹脂
分の量が著しく減少したことが証明された。スクリーン
室内への樹脂分の膜状付着は試運転後僅かに（８％）減
少した。Visual inspection of the screen room and the defective cleaning cone of the bleaching plant during the trial operation revealed that the resin content did not substantially adhere to these. Furthermore,
Depending on the degree of pulp contamination, loose resin content in the system,
Thus, it was demonstrated that the amount of colloidal, trapped resin released by shear was significantly reduced. The film-like deposition of the resin component in the screen chamber was slightly reduced (8%) after the trial run.
【００２８】抄紙機のプレスセクションのＵｈｌｅ箱
を、コロイド状メラミンホルムアルデヒドを用いた試運
転の１日前及び１日後に清掃した。Ｕｈｌｅ箱内に樹脂
分またはスケール付着物は見いだされなかった。この処
理は有効なＡＺＣプログラムに取って替わるものであっ
た。The Uhle box in the press section of the paper machine was cleaned one day before and one day after commissioning with colloidal melamine formaldehyde. No resin or scale deposits were found in the Uhle box. This process replaced the valid AZC program.
【００２９】実施例２：混合オフィス廃棄物―固着物質
の制御 ３重量％の繊維、脱インキ剤、インキ固体及び漂白剤を
含有する混合オフィス廃棄物から製造した二次繊維完成
紙料に、Ｃａｌｇｏｎ社から市販されているメラミンホ
ルムアルデヒド酸性コロイドを供給した。活性ポリマー
用量は０．６５ｌｂ／ｔとした。処理済み及び未処理の
完成紙料から手漉き紙を製造した。未処理の手漉き紙は
大量の粘着粒子を含み、この粒子に繊維が付着してい
た。処理済みの手漉き紙はより少量の非粘着性粒子しか
含まず、繊維の付着もより僅かであった。この試験によ
って上記ポリマーの、固着物質粒子の凝集を妨げる能力
が明示された。この試験はまた、上記ポリマーＣＡ−２
８９の、固着物質の表面を非粘着性とする能力も示し
た。 Example 2 : Mixed office waste-adherent material
A secondary fiber furnish made from a mixed office waste containing 3% by weight of fiber, deinking agent, ink solids and bleach was fed with a melamine formaldehyde acidic colloid commercially available from Calgon. The active polymer dose was 0.65 lb / t. Handmade paper was made from treated and untreated furnish. The untreated handmade paper contained a large amount of sticky particles to which fibers were attached. The treated handsheets contained lesser amounts of non-stick particles and had less fiber attachment. This test demonstrated the ability of the polymer to prevent the agglomeration of adherent particles. This test was also performed on the polymer CA-2 described above.
The ability of 89 to render the surface of the adherent material non-tacky was also demonstrated.
Claims (10)
械類への樹脂分の付着を防止する方法であって、前記設
備もしくは機械類と接触する、樹脂分を含有する完成紙
料、紙料または製紙流に有効量の非水溶性メラミンホル
ムアルデヒド型ポリマー酸性コロイドを添加することを
含む方法。1. A method for preventing adhesion of a resin component to equipment or machinery for producing pulp and paper, which comprises a furnish containing a resin component, a furnish, or a material which is in contact with the facility or machinery. A method comprising adding to a papermaking stream an effective amount of a water insoluble melamine formaldehyde type polymeric acidic colloid.
リマー酸性コロイドが（ａ）メラミンまたは置換メラミ
ンと、（ｂ）式 Ｒ１−Ｃ（＝Ｏ）−Ｒ２ 〔式中、互いに同じであっても異なっていてもよいＲ１
及びＲ２はＨ並びに直鎖及び分枝鎖Ｃ１〜Ｃ４アルキル
基の中から選択される〕によって表わされる化合物とを
含むことを特徴とする請求項１に記載の方法。2. A water-insoluble melamine formaldehyde-type polymer
The lymer acidic colloid is (a) melamine or substituted melamine.
And (b) formula R1-C (= O) -R2 [Wherein R may be the same or different from each other]1
And R2Is H and linear and branched C1~ C4Alkyl
Selected from the group] and
The method of claim 1, comprising:
特徴とする請求項２に記載の方法。3. The method according to claim 2, wherein (b) is formaldehyde.
約１：６であることを特徴とする請求項２に記載の方
法。4. The method of claim 2, wherein the molar ratio of (a) :( b) is from about 1: 1 to about 1: 6.
約１：６であることを特徴とする請求項３に記載の方
法。5. The method of claim 3, wherein the molar ratio of (a) :( b) is from about 1: 1 to about 1: 6.
しくは機械類への固着物質の付着を防止する方法であっ
て、前記設備もしくは機械類と接触する、固着物質を含
有する二次繊維完成紙料、紙料または製紙流に有効量の
非水溶性メラミンホルムアルデヒド型ポリマー酸性コロ
イドを添加することを含む方法。6. A method of preventing sticking substances from adhering to equipment or machinery for producing secondary fiber pulp and paper, comprising the completion of secondary fibers containing sticking substances in contact with said equipment or machinery. A method comprising adding an effective amount of a water-insoluble melamine formaldehyde type polymeric acidic colloid to a stock, a stock or a papermaking stream.
リマー酸性コロイドが（ａ）メラミンまたは置換メラミ
ンと、（ｂ）式 Ｒ１−Ｃ（＝Ｏ）−Ｒ２ 〔式中、互いに同じであっても異なっていてもよいＲ１
及びＲ２はＨ並びに直鎖及び分枝鎖Ｃ１〜Ｃ４アルキル
基の中から選択される〕によって表わされる化合物とを
含むことを特徴とする請求項６に記載の方法。7. A water-insoluble melamine formaldehyde-type polymer
The lymer acidic colloid is (a) melamine or substituted melamine.
And (b) formula R1-C (= O) -R2 [Wherein R may be the same or different from each other]1
And R2Is H and linear and branched C1~ C4Alkyl
Selected from the group] and
7. The method of claim 6, comprising:
特徴とする請求項７に記載の方法。8. The method of claim 7, wherein (b) is formaldehyde.
約１：６であることを特徴とする請求項７に記載の方
法。9. The method of claim 7, wherein the molar ratio of (a) :( b) is from about 1: 1 to about 1: 6.
ら約１：６であることを特徴とする請求項８に記載の方
法。10. The method of claim 8, wherein the molar ratio of (a) :( b) is from about 1: 1 to about 1: 6.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/878,637 US5286347A (en) | 1992-05-05 | 1992-05-05 | Melamine formaldehyde polymer for pitch control method |
| US878637 | 1992-05-05 | ||
| US08/023,988 US5433824A (en) | 1993-02-26 | 1993-02-26 | Melamine-formaldehyde polymer for controlling stickies |
| US023988 | 1993-02-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06101193A JPH06101193A (en) | 1994-04-12 |
| JP2559327B2 true JP2559327B2 (en) | 1996-12-04 |
Family
ID=26697885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5127967A Expired - Fee Related JP2559327B2 (en) | 1992-05-05 | 1993-04-30 | Method to prevent the adhesion of resin or fixed substances |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0569085B1 (en) |
| JP (1) | JP2559327B2 (en) |
| AT (1) | ATE148512T1 (en) |
| AU (1) | AU671444B2 (en) |
| CA (1) | CA2095187C (en) |
| DE (1) | DE69307767T2 (en) |
| FI (1) | FI115476B (en) |
| MX (1) | MX9302648A (en) |
| NZ (1) | NZ247498A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9505323D0 (en) * | 1995-03-16 | 1995-05-03 | Ecc Int Ltd | Improved pitch control agent |
| US6235149B1 (en) * | 1997-10-14 | 2001-05-22 | Vinings Industries, Inc. | Acrylic acid/maleic acid copolymers as detackification agents for adhesives contained in secondary fiber |
| EP1950342B1 (en) * | 2007-01-29 | 2016-05-04 | Cognis IP Management GmbH | Emulsions |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2986489A (en) * | 1958-01-28 | 1961-05-30 | American Cyanamid Co | Melamine resin colloid and manufacture of wet-strength paper therewith |
| US3582461A (en) * | 1968-02-14 | 1971-06-01 | Diamond Shamrock Corp | Pitch control in pulp and papermaking processes |
| JPS60259699A (en) * | 1984-06-05 | 1985-12-21 | 本州製紙株式会社 | Zeta potential adjusting agent |
| US4913775A (en) * | 1986-01-29 | 1990-04-03 | Allied Colloids Ltd. | Production of paper and paper board |
| DE3741282A1 (en) * | 1987-12-05 | 1989-06-15 | Cassella Ag | SIZE FOR PAPER |
| US5068279A (en) * | 1989-01-12 | 1991-11-26 | Calgon Corporation | Low free formaldehyde melamine-formaldehyde detackifier and method of using |
-
1993
- 1993-04-27 NZ NZ247498A patent/NZ247498A/en not_active IP Right Cessation
- 1993-04-29 CA CA002095187A patent/CA2095187C/en not_active Expired - Fee Related
- 1993-04-30 JP JP5127967A patent/JP2559327B2/en not_active Expired - Fee Related
- 1993-05-01 EP EP93201240A patent/EP0569085B1/en not_active Expired - Lifetime
- 1993-05-01 DE DE69307767T patent/DE69307767T2/en not_active Expired - Fee Related
- 1993-05-01 AT AT93201240T patent/ATE148512T1/en not_active IP Right Cessation
- 1993-05-04 FI FI932014A patent/FI115476B/en not_active IP Right Cessation
- 1993-05-04 AU AU38376/93A patent/AU671444B2/en not_active Ceased
- 1993-05-04 MX MX9302648A patent/MX9302648A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE69307767T2 (en) | 1997-05-28 |
| DE69307767D1 (en) | 1997-03-13 |
| EP0569085B1 (en) | 1997-01-29 |
| FI932014A0 (en) | 1993-05-04 |
| JPH06101193A (en) | 1994-04-12 |
| MX9302648A (en) | 1994-05-31 |
| CA2095187C (en) | 2005-10-18 |
| NZ247498A (en) | 1995-08-28 |
| AU3837693A (en) | 1993-11-11 |
| ATE148512T1 (en) | 1997-02-15 |
| FI932014A (en) | 1993-11-06 |
| FI115476B (en) | 2005-05-13 |
| CA2095187A1 (en) | 1993-11-06 |
| EP0569085A1 (en) | 1993-11-10 |
| AU671444B2 (en) | 1996-08-29 |
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