JPH01156587A - Pulp production improved in filler yield and production of paper - Google Patents
Pulp production improved in filler yield and production of paperInfo
- Publication number
- JPH01156587A JPH01156587A JP31254087A JP31254087A JPH01156587A JP H01156587 A JPH01156587 A JP H01156587A JP 31254087 A JP31254087 A JP 31254087A JP 31254087 A JP31254087 A JP 31254087A JP H01156587 A JPH01156587 A JP H01156587A
- Authority
- JP
- Japan
- Prior art keywords
- pulp
- filler
- beating
- slurry
- paper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000945 filler Substances 0.000 title claims abstract description 52
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000010009 beating Methods 0.000 claims abstract description 31
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 12
- 239000013055 pulp slurry Substances 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000000454 talc Substances 0.000 claims abstract description 3
- 229910052623 talc Inorganic materials 0.000 claims abstract description 3
- 239000002002 slurry Substances 0.000 claims description 12
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 4
- 239000004927 clay Substances 0.000 claims description 4
- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- 239000005909 Kieselgur Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 2
- 239000000203 mixture Substances 0.000 abstract description 7
- 244000025254 Cannabis sativa Species 0.000 abstract description 2
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 abstract description 2
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 abstract description 2
- 235000009120 camo Nutrition 0.000 abstract description 2
- 235000005607 chanvre indien Nutrition 0.000 abstract description 2
- 239000011487 hemp Substances 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 description 17
- 239000007787 solid Substances 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 230000014759 maintenance of location Effects 0.000 description 5
- 206010061592 cardiac fibrillation Diseases 0.000 description 4
- 230000002600 fibrillogenic effect Effects 0.000 description 4
- 125000002091 cationic group Chemical group 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011268 mixed slurry Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- -1 etc. Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、填料を機械的に付着させたパルプの製造方法
及び該パルプを使用した紙の製造方法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for producing pulp to which a filler is mechanically attached, and a method for producing paper using the pulp.
［従来の技術］
印刷用紙又は各種の加工用原紙の製造に際して、填料は
紙の表面性、不透明性、印刷適性等を改善するために、
不可欠とされている。[Prior Art] When manufacturing printing paper or various types of base paper for processing, fillers are used to improve the surface properties, opacity, printability, etc. of the paper.
considered essential.
紙を製造する方法としては、従来よりバルブを予め叩解
した後填料を添加して製紙原料とし、これを抄造して紙
とする方法が知られている。ところが、填料は水中での
表面電荷が負であり、同じく負のバルブと同一の極性で
あるために、共存する系では電気的に反発し合ってしま
い、定着は余り良くないのが普通である。この為内添薬
品として、カチオン性もしくはアニオン性高分子物質か
ら成る定着剤あるいは歩留向上剤を使用して填料をバル
ブに化学的に定着させて抄紙機でシート化するが、それ
でもバルブに対する填料の定着率か悪く微細な填料が白
水中に逃げ易かりた。しかも抄紙速度の高速化に伴ない
填料の歩留も低下し、更に歩留を良くする為に定着剤も
しくは歩留向上剤を多量に添加すると、繊維のフロック
が大きくなって紙の地合いは不良となり、紙中にとどま
らせることの出来る填料含有率には限界がみられた。BACKGROUND ART Conventionally, as a method for producing paper, a method is known in which bulbs are beaten in advance and then a filler is added thereto to obtain a papermaking raw material, which is then formed into paper. However, the filler has a negative surface charge in water and has the same polarity as the bulb, which is also negative, so when they coexist, they electrically repel each other, and fixation is usually not very good. . For this reason, the filler is chemically fixed to the valve using a fixing agent or retention aid made of a cationic or anionic polymeric substance as an internal chemical, and the filler is formed into a sheet by the paper machine. The fixation rate was poor and the fine filler easily escaped into the white water. Moreover, as the papermaking speed increases, the filler yield also decreases, and if a large amount of fixer or retention agent is added to further improve the yield, fiber flocks become larger and the paper texture becomes poor. Therefore, there was a limit to the filler content that could remain in the paper.
［問題点を解決する為の手段］
本発明者等は、上記の如き欠点がなく填料を効率よく紙
中にとどまらせることを検討した結果、バルブに予め填
料を加えたスラリーを叩解しフィブリル化したバルブに
填料を付着させることにより、かかる問題を解決できる
ことを見い出した。[Means for Solving the Problems] The inventors of the present invention investigated ways to efficiently retain filler in paper without the above-mentioned drawbacks, and as a result, the present inventors beat a slurry to which filler had been added in advance to form fibrils. It has been discovered that this problem can be solved by attaching a filler to the bulb.
本発明で使用するバルブとしては、ＮＢＫＰ、１．１ｌ
ＫＰ、麻バルブ等が挙げられ、未叩解の状態または所定
の叩解度まで進んでいない状態で使用される。本発明は
、所定の叩解度まで叩解するに際し、填料を混合した状
態で叩解するというものであるが、混合叩解の開始時に
既にバルブが叩解されているのか、或は未叩解のもので
あるのかは、所定叩解度の程度、填料の種類、配合割合
にもよるが、付着効率からは未叩解のものが望ましい。The valve used in the present invention is NBKP, 1.1l.
Examples include KP, hemp bulb, etc., which are used in an unbeaten state or in a state where the beating has not reached a predetermined degree. In the present invention, when beating to a predetermined degree of beating, the filler is mixed and beaten, but it is difficult to know whether the bulb has already been beaten at the start of mixing and beating, or whether it is unbeaten. Although it depends on the predetermined degree of beating, the type of filler, and the blending ratio, unbeaten ones are preferable from the viewpoint of adhesion efficiency.
次に、バルブに加えられる填料は水不溶性のものであれ
ばいずれのものも使用可能であり、例えば無機填料とし
て通常の製紙用に用いられる重質炭酸カルシュラム、軽
質炭酸カルシュラム、酸化チタン、タルク、カオリン、
クレー、珪藻土、氷酸化アルミニウム等の他にアルミナ
、ジルコニア等のセラミックス原料粉末等が挙げられる
。紙の用途、性能に応じて任意の填料を１種もしくは２
種以上組み合せて用いることも可能である。Next, the filler added to the bulb can be any water-insoluble filler, such as heavy calcium carbonate, light calcium carbonate, titanium oxide, talc, Kaolin,
In addition to clay, diatomaceous earth, aluminum oxide, etc., ceramic raw material powders such as alumina and zirconia can be cited. Add one or two fillers depending on the purpose and performance of the paper.
It is also possible to use a combination of more than one species.
これらの填料はバルブ１００重量部に対して、１０〜１
ｏＯＢｌｊｆｉ部程度を添加することが望ましい。１０
重量部未満であると十分な効果が得られない恐れがあり
、１００重量部を越えるとバルブの絶対量が少なく、フ
ィブリル化が限界状態となるために増配された填料を保
持することが困難になる。The amount of these fillers is 10 to 1 per 100 parts by weight of the valve.
It is desirable to add the OOBLJFI section. 10
If it is less than 100 parts by weight, sufficient effect may not be obtained, and if it exceeds 100 parts by weight, the absolute amount of bulbs will be small and fibrillation will reach its limit, making it difficult to retain the increased filler. Become.
本発明でバルブと填料の混合叩解に使用される叩解機は
、通常バルブの叩解に使用される叩解機であれば使用可
能であって、例えばディスクリファイナ−、コニカルリ
ファイナー等が挙げられる。バルブのフィブリル化を進
める上からは、高濃度粘状叩解が適している。The beating machine used for mixing and beating the bulb and filler in the present invention can be any beating machine that is normally used for beating the bulb, and includes, for example, a disc refiner, a conical refiner, and the like. High-concentration viscous beating is suitable for promoting fibrillation of bulbs.
本発明で得られたバルブをシート化するに際しては、そ
のまま通常の抄紙機に導いて抄造することは可能である
が、更に効率良く歩留らせるにはＩＦ「述した定着剤も
しくは歩留向上剤を微量添加することもＩｉＴ能である
。更には、後添加としての填料を加えてから抄造しても
良い。When forming a sheet from the valve obtained by the present invention, it is possible to directly introduce it into a normal paper machine and make paper, but in order to make the yield more efficient, use the fixing agent or yield-improving agent described in IF It is also possible to add a small amount of a filler.Furthermore, it is also possible to add a filler as a post-addition before forming the paper.
［作用］
本発明の混合叩解では、バルブ単独で叩解度を進めた場
合と異なり、予め填料と混合されたバルブが叩解処理を
受けるので、単に叩解機の刃のみにて叩解されるのでは
なく同時に存在する填料によってももみほぐされること
になる。このため、セルロース表面のフィブリル化が進
むとその一方で、填料がフィブリル化によって発生した
多数のヒゲ根状小繊維に絡みつき、バルブの填料保持能
力が向上することになる。[Function] In the mixed beating of the present invention, unlike the case where the degree of beating is increased by the valve alone, the valve that has been mixed with the filler in advance is subjected to the beating process, so the beating is not simply performed by the blades of the beating machine. It will be loosened by the filler that is present at the same time. Therefore, as the fibrillation of the cellulose surface progresses, the filler becomes entangled with a large number of hair root-like fibrils generated by the fibrillation, improving the filler retention capacity of the bulb.
［実施例］ 以Ｆ、実施例に基き本発明を具体的に説明する。[Example] Hereinafter, the present invention will be specifically explained based on Examples.
（実施例１）
未叩解ＬＩＩＫＰ固形分１００重量部から成るパルプス
ラリーに、填料として平均粒径１．５μｍの軽質炭酸カ
ルシュラムの固形分４０重量部のスラリーを加えて濃度
を５％に希釈し、十分に攪拌してパルプと填料の混合ス
ラリーとした。次いで、ディスクリファイナ−にて混合
叩解を行ない、フリーネス（カナダ標準濾水度）２０７
ｍｆｆｉの完成原料を得た。(Example 1) To a pulp slurry consisting of 100 parts by weight of unbeaten LIIKP solids, a slurry of 40 parts by weight of solids of light calcilum carbonate with an average particle size of 1.5 μm was added as a filler to dilute the concentration to 5%, The mixture was sufficiently stirred to form a mixed slurry of pulp and filler. Next, mixing and beating is performed in a disc refiner to obtain a freeness (Canadian standard freeness) of 207.
A finished raw material for mffi was obtained.
この原料を用いてＴＡＰＰＩ手抄シートマシンで６０
ｇ／ｍ２、１００ ｇ７ｍ２の手抄紙を調製した。得ら
れた手抄紙についての填料歩留、紙質試験結果を第１表
に示す。Using this raw material, 60
g/m2, 100 g7m2 handmade paper was prepared. Table 1 shows the filler yield and paper quality test results for the handmade paper obtained.
（比較例１）
比較のために、混合叩解を行なわない即ちフリーネス１
８０１１ｊ２の単独叩解Ｌ Ｂ Ｋ Ｐ固形分１００重
量部に、実施例１で使用した軽質炭酸カルシウムの固形
分４０重量部のスラリーを加え、濃度を５％に希釈し、
十分に攪拌してフリーネスで２０９ ｍｌｌの完成原料
を得た。(Comparative Example 1) For comparison, no mixed beating, that is, freeness 1
A slurry of 40 parts by weight of light calcium carbonate solids used in Example 1 was added to 100 parts by weight of individually beaten L B KP 8011j2 solids, and the concentration was diluted to 5%.
After thorough stirring, 209 ml of finished raw material was obtained at freeness.
この原料について、実施例１と同様にして手抄紙を調製
し、得られた手抄紙についての填料歩留、紙質試験結果
を第１表に示す。Using this raw material, handmade paper was prepared in the same manner as in Example 1, and Table 1 shows the filler yield and paper quality test results for the obtained handmade paper.
第１表
（実施例２）
未叩解ＬＢＫＰ固形分１００重量部から成るパルプスラ
リーに平均粒径２．５ ｐＬｍのクレーの固形分５０重
量部のスラリーを加えて濃度を５％に希釈し。Table 1 (Example 2) To a pulp slurry consisting of 100 parts by weight of unbeaten LBKP solids, a slurry of 50 parts by weight of solids of clay having an average particle size of 2.5 pLm was added to dilute to a concentration of 5%.
十分に攪拌してパルプと填料の混合スラリーとした。The mixture was sufficiently stirred to form a mixed slurry of pulp and filler.
次いで、ディスクリファイナ−にて混合叩解な行ない、
フリーネス２０３ｍ１の完成原料を得た。Next, mix and beat in a disc refiner,
A finished raw material with a freeness of 203 ml was obtained.
この原料を用いてＴＡＰＰＩ手抄シートマシンで５０
ｇ／ｍ２の手抄紙を調製した。得られた手抄紙について
の填料歩留、紙質試験結果を第２表に示す。Using this raw material, 50
A handmade paper of g/m2 was prepared. The filler yield and paper quality test results for the obtained handmade paper are shown in Table 2.
（実施例３）
実施例２で得られたフリーネス２０３１１ＩＬの完成原
料に微量のカチオン性アクリルアミドの歩留向上剤を添
加し、十分に攪拌してフリーネスで２３０ｍＩＬの原料
を得た。この原料を用いて実施例２と同様にして手抄紙
を調製し、得られた手抄紙についての填料歩留、紙質試
験結果を第２表に示す。(Example 3) A trace amount of a retention aid of cationic acrylamide was added to the finished raw material of Freeness 20311IL obtained in Example 2, and the mixture was sufficiently stirred to obtain a raw material of 230 mL of Freeness. Using this raw material, handmade paper was prepared in the same manner as in Example 2, and the filler yield and paper quality test results for the obtained handmade paper are shown in Table 2.
（比較例２）
比較のため混合叩解を行なわないフリーネス１８０ｎｉ
ｆｉの単独叩解ＬＢＫＰ固形分１００重量部に、実施例
２で使用したクレーの固形分５０重量部のスラリーを加
えて濃度を５％に希釈し、十分に攪拌してフリーネス２
００ｍｌ１．の完成原料を得た。この原料について、実
施例２と同様にして手抄紙を調製した。(Comparative Example 2) Freeness 180ni without mixing and beating for comparison
A slurry with a solid content of 50 parts by weight of the clay used in Example 2 was added to 100 parts by weight of solid content of singly beaten LBKP of fi to dilute the concentration to 5%, and the mixture was thoroughly stirred to obtain freeness 2.
00ml1. The finished raw material was obtained. Using this raw material, handmade paper was prepared in the same manner as in Example 2.
（比較例３）
比較例２で得られたフリーネス２００１立の完成原料に
微量のカチオン性アクリルアミドの歩留向上剤を添加し
、十分に攪拌してフリーネス２３４ｍＪｌの原料を得た
。この原料について実施例３と同様にして手抄紙を調製
した。比較例２、及び３の手抄紙について填料歩留、紙
質試験結果を第２表に示す。(Comparative Example 3) A trace amount of a cationic acrylamide retention agent was added to the finished raw material obtained in Comparative Example 2 with a freeness of 2001, and thoroughly stirred to obtain a raw material with a freeness of 234 mJl. Using this raw material, handmade paper was prepared in the same manner as in Example 3. Filler yield and paper quality test results for the handmade papers of Comparative Examples 2 and 3 are shown in Table 2.
第２表
（実施例４）
フリーネス４５０ｍＩｔまで叩解を進めたＬＢにＰ１０
０重量部から成るパルプスラリーに、平均粒径＋、５μ
ｍの軽質炭酸カルシュラム４０重量部のスラリーを加え
て濃度５％に希釈し、十分に攪拌してバルブ、填料の混
合スラリーを得た。次いで実施例１と同様に混合叩解を
行ない、フリーネス２０５ＩＩｌｆｉの完成原料を得、
手抄紙を調製した。得られた手抄紙についての填料歩留
、紙質試験結果を第３表に示す。Table 2 (Example 4) P10 for LB that has been beaten to a freeness of 450 mIt
To the pulp slurry consisting of 0 parts by weight, the average particle size +, 5μ
The slurry was diluted to a concentration of 5% by adding 40 parts by weight of light calcilum carbonate, and thoroughly stirred to obtain a mixed slurry of bulbs and filler. Next, mixing and beating was carried out in the same manner as in Example 1 to obtain a finished raw material of Freeness 205IIlfi,
A handmade paper was prepared. Table 3 shows the filler yield and paper quality test results for the handmade paper obtained.
第 ３ 表
［発明の効果］
本発明ではバルブと填料のスラリーを混合叩解すること
によって、両者間に特殊な物理的関係を発生させて、填
料の高歩留を実現することができる。しかも、１：ｔら
れたバルブはそのまま抄紙に活用することができて、紙
の地合を悪化させることなく、高い填料歩留の紙を製造
することができる。Table 3 [Effects of the Invention] In the present invention, by mixing and beating slurries of valve and filler, a special physical relationship is generated between the slurries, and a high yield of filler can be achieved. Moreover, the 1:t-treated valve can be used as is for paper making, and paper with a high filler yield can be produced without deteriorating the paper's texture.
手続補正書
■、事件の表示 昭和６２年特許願 第３１２５４０
号２、発明の名称 填料歩留りの改善されたバルブの
ｙ！遣方法及び紙の製造方法
３、補正をする者
事件との関係 特許出願人
名称 十條製紙株式会社
代表者 右上 實
４、代理人 〒１１４ ｆｆ１９１．１−５１０６５
、補正により増加する発明の数 ０６、補正
の対象 （１）明４［１１書のｒ発明の詳細な説明１の
欄（１）明細書第８頁の第１表中、比較例１の左欄の裂
断長の数値「４０」をｒ４．ＯＪと訂正する。Procedural Amendment ■, Indication of Case 1985 Patent Application No. 312540
No. 2, Title of the Invention Valve with improved filler yield y! Relationship with the amendment method and paper manufacturing method 3 and the case of the person making the amendment Patent applicant name Jujo Paper Co., Ltd. Representative Minoru 4, upper right, Agent 114 ff191.1-51065
, Number of inventions increased by amendment 06, Subject of amendment (1) Column 1 of Detailed Description of the Invention in Book 11 of Mei 4 (1) To the left of Comparative Example 1 in Table 1 on page 8 of the specification Set the rupture length value "40" in the column to r4. Correct O.J.
Claims (8)
度まで混合叩解を行なうことによりパルプに填料を付着
させることを特徴とする填料歩留りの改善されたパルプ
の製造方法。(1) A method for producing pulp with improved filler yield, characterized in that the filler is attached to the pulp by adding the filler to the pulp slurry in advance and performing mixing and beating to a predetermined degree of beating.
ある特許請求の範囲第１項記載のパルプ製造方法。(2) The pulp manufacturing method according to claim 1, wherein the pulp slurry is a slurry of unbeaten pulp.
解度のパルプのスラリーである特許請求の範囲第１項記
載のパルプの製造方法。(3) The method for producing pulp according to claim 1, wherein the pulp slurry is a slurry of pulp having a beating degree lower than a predetermined beating degree.
ウム、酸化チタン、タルク、カオリン、クレー、珪藻土
、氷酸化アルミニウム、アルミナ、ジルコニアから選ば
れた１種もしくは２種以上の組合せである特許請求の範
囲第１〜３項記載のパルプの製造方法。(4) A patent claim in which the filler is one or a combination of two or more selected from heavy calcium carbonate, light calcium carbonate, titanium oxide, talc, kaolin, clay, diatomaceous earth, glacial aluminum oxide, alumina, and zirconia. A method for producing pulp according to items 1 to 3.
〜１００重量部である特許請求の範囲第１〜４項記載の
パルプの製造方法。(5) The amount of filler added is 10 parts by weight per 100 parts by weight of pulp.
5. The method for producing pulp according to claims 1 to 4, wherein the amount is 100 parts by weight.
度まで混合叩解を行なうことによりパルプに填料を付着
させた後、このパルプスラリーを抄造することを特徴と
する紙の製造方法。(6) A method for producing paper, which comprises adding a filler to the pulp slurry in advance and mixing and beating it to a predetermined degree of beating, thereby adhering the filler to the pulp, and then forming the pulp slurry into paper.
ある特許請求の範囲第６項記載の紙の製造方法。(7) The method for producing paper according to claim 6, wherein the pulp slurry is a slurry of unbeaten pulp.
解度のパルプのスラリーである特許請求の範囲第６項記
載の紙の製造方法。(8) The method for producing paper according to claim 6, wherein the pulp slurry is a slurry of pulp having a beating degree lower than a predetermined beating degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62312540A JP2528487B2 (en) | 1987-12-10 | 1987-12-10 | Method for producing pulp having improved filler yield and method for producing paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62312540A JP2528487B2 (en) | 1987-12-10 | 1987-12-10 | Method for producing pulp having improved filler yield and method for producing paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01156587A true JPH01156587A (en) | 1989-06-20 |
| JP2528487B2 JP2528487B2 (en) | 1996-08-28 |
Family
ID=18030454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62312540A Expired - Fee Related JP2528487B2 (en) | 1987-12-10 | 1987-12-10 | Method for producing pulp having improved filler yield and method for producing paper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2528487B2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0984177A (en) * | 1995-09-19 | 1997-03-28 | Onkyo Corp | Parts for electroacoustic transducer |
| US9127405B2 (en) | 2009-05-15 | 2015-09-08 | Imerys Minerals, Limited | Paper filler composition |
| US10053817B2 (en) | 2010-04-27 | 2018-08-21 | Fiberlean Technologies Limited | Process for the manufacture of structured materials using nano-fibrillar cellulose gels |
| JP2019007127A (en) * | 2009-03-30 | 2019-01-17 | ファイバーリーン テクノロジーズ リミテッド | Method for producing nanofibril cellulose suspension |
| US10214859B2 (en) | 2016-04-05 | 2019-02-26 | Fiberlean Technologies Limited | Paper and paperboard products |
| US10253457B2 (en) | 2010-11-15 | 2019-04-09 | Fiberlean Technologies Limited | Compositions |
| US10294371B2 (en) | 2009-03-30 | 2019-05-21 | Fiberlean Technologies Limited | Process for the production of nano-fibrillar cellulose gels |
| US10794006B2 (en) | 2016-04-22 | 2020-10-06 | Fiberlean Technologies Limited | Compositions comprising microfibrilated cellulose and polymers and methods of manufacturing fibres and nonwoven materials therefrom |
| US11155697B2 (en) | 2010-04-27 | 2021-10-26 | Fiberlean Technologies Limited | Process for the production of gel-based composite materials |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2741514T3 (en) | 2015-10-14 | 2020-02-11 | Fiberlean Tech Ltd | 3D conformable laminate |
| US11846072B2 (en) | 2016-04-05 | 2023-12-19 | Fiberlean Technologies Limited | Process of making paper and paperboard products |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53130301A (en) * | 1977-04-19 | 1978-11-14 | Valmet Oy | Production of high quality pulp cut thermomechanically |
-
1987
- 1987-12-10 JP JP62312540A patent/JP2528487B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53130301A (en) * | 1977-04-19 | 1978-11-14 | Valmet Oy | Production of high quality pulp cut thermomechanically |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0984177A (en) * | 1995-09-19 | 1997-03-28 | Onkyo Corp | Parts for electroacoustic transducer |
| JP2019007127A (en) * | 2009-03-30 | 2019-01-17 | ファイバーリーン テクノロジーズ リミテッド | Method for producing nanofibril cellulose suspension |
| US10982387B2 (en) | 2009-03-30 | 2021-04-20 | Fiberlean Technologies Limited | Process for the production of nano-fibrillar cellulose suspensions |
| US10975242B2 (en) | 2009-03-30 | 2021-04-13 | Fiberlean Technologies Limited | Process for the production of nano-fibrillar cellulose gels |
| US10301774B2 (en) | 2009-03-30 | 2019-05-28 | Fiberlean Technologies Limited | Process for the production of nano-fibrillar cellulose suspensions |
| US10294371B2 (en) | 2009-03-30 | 2019-05-21 | Fiberlean Technologies Limited | Process for the production of nano-fibrillar cellulose gels |
| JP2020079476A (en) * | 2009-05-15 | 2020-05-28 | ファイバーリーン テクノロジーズ リミテッド | Paper filler composition |
| US9127405B2 (en) | 2009-05-15 | 2015-09-08 | Imerys Minerals, Limited | Paper filler composition |
| US11970817B2 (en) | 2009-05-15 | 2024-04-30 | Fiberlean Technologies Limited | Paper filler composition |
| JP2018188793A (en) * | 2009-05-15 | 2018-11-29 | ファイバーリーン テクノロジーズ リミテッド | Paper filler composition |
| US10100464B2 (en) | 2009-05-15 | 2018-10-16 | Fiberlean Technologies Limited | Paper filler composition |
| US11732411B2 (en) | 2009-05-15 | 2023-08-22 | Fiberlean Technologies Limited | Paper filler composition |
| US11377791B2 (en) | 2009-05-15 | 2022-07-05 | Fiberlean Technologies Limited | Paper filler composition |
| US10053817B2 (en) | 2010-04-27 | 2018-08-21 | Fiberlean Technologies Limited | Process for the manufacture of structured materials using nano-fibrillar cellulose gels |
| US11155697B2 (en) | 2010-04-27 | 2021-10-26 | Fiberlean Technologies Limited | Process for the production of gel-based composite materials |
| US10100467B2 (en) | 2010-04-27 | 2018-10-16 | Fiberlean Technologies Limited | Process for the manufacture of structured materials using nano-fibrillar cellulose gels |
| US10633796B2 (en) | 2010-04-27 | 2020-04-28 | Fiberlean Technologies Limited | Process for the manufacture of structured materials using nano-fibrillar cellulose gels |
| US11136721B2 (en) | 2010-11-15 | 2021-10-05 | Fiberlean Technologies Limited | Compositions |
| US11655594B2 (en) | 2010-11-15 | 2023-05-23 | Fiberlean Technologies Limited | Compositions |
| US10253457B2 (en) | 2010-11-15 | 2019-04-09 | Fiberlean Technologies Limited | Compositions |
| US10801162B2 (en) | 2016-04-05 | 2020-10-13 | Fiberlean Technologies Limited | Paper and paperboard products |
| US10214859B2 (en) | 2016-04-05 | 2019-02-26 | Fiberlean Technologies Limited | Paper and paperboard products |
| US11274399B2 (en) | 2016-04-05 | 2022-03-15 | Fiberlean Technologies Limited | Paper and paperboard products |
| US11732421B2 (en) | 2016-04-05 | 2023-08-22 | Fiberlean Technologies Limited | Method of making paper or board products |
| US10794006B2 (en) | 2016-04-22 | 2020-10-06 | Fiberlean Technologies Limited | Compositions comprising microfibrilated cellulose and polymers and methods of manufacturing fibres and nonwoven materials therefrom |
| US11572659B2 (en) | 2016-04-22 | 2023-02-07 | Fiberlean Technologies Limited | Compositions comprising microfibrillated cellulose and polymers and methods of manufacturing fibres and nonwoven materials therefrom |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2528487B2 (en) | 1996-08-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3145707B2 (en) | Method of filling compound into fiber | |
| CN1088777C (en) | Production of filled paper and compositions for use in this | |
| JPH11217794A (en) | Filler used for papermaking and its preparation | |
| WO1997005329A1 (en) | Paper made with cellulose fibers having an inner core of cellulose acetate | |
| JPH0316434B2 (en) | ||
| AU578404B2 (en) | Production of paper and cardboard | |
| IE52660B1 (en) | Gypsum wallboard paper | |
| JPH01156587A (en) | Pulp production improved in filler yield and production of paper | |
| CN86102961A (en) | Papermaking process | |
| JP2723240B2 (en) | Method for producing mineral solid suspension | |
| JPS638240B2 (en) | ||
| JPS62199898A (en) | Production of neutral paper | |
| JP3949486B2 (en) | Rayon mixed paper and manufacturing method thereof | |
| EP0203817A1 (en) | Polymeric compositions | |
| EP0004833B1 (en) | Paper-like fibre product and method of manufacturing such a product | |
| JPH08246389A (en) | Production of titanium paper | |
| JP2521844B2 (en) | Inorganic sheet manufacturing method | |
| SU889771A1 (en) | Paper pulp production method | |
| SU867985A1 (en) | Paper-making method | |
| JP2618231B2 (en) | Manufacturing method of filled paper | |
| SU1141131A1 (en) | Method of producing paper | |
| EP0414496A1 (en) | Method and pulp for improving paper fines and filler retention | |
| SU467160A1 (en) | Paper pulp for the production of wallpaper paper | |
| JPH0192497A (en) | Production of aluminum-containing paper | |
| JPS61127680A (en) | Manufacture of whisker sheet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |