JPS616167A - Hydraulic inorganic papered product and manufacture - Google Patents
Hydraulic inorganic papered product and manufactureInfo
- Publication number
- JPS616167A JPS616167A JP12618684A JP12618684A JPS616167A JP S616167 A JPS616167 A JP S616167A JP 12618684 A JP12618684 A JP 12618684A JP 12618684 A JP12618684 A JP 12618684A JP S616167 A JPS616167 A JP S616167A
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic inorganic
- paper
- bentonite
- hydraulic
- pulp
- 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
Landscapes
- Producing Shaped Articles From Materials (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
A 本発明の技術分野
本発明は石綿を使用しなくても本質的に機械的性能の優
れた水硬性無機質抄造製品と、七のような抄造製品を得
るための製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION A Technical Field of the Invention The present invention relates to a hydraulic inorganic paper product that essentially has excellent mechanical performance without using asbestos, and a method for producing the paper product as described in Section 7. It is about the method.
B 従来技術とその問題点
水硬性無機質抄造製品は1石綿スレート板に代表される
ように石綿のようなla、維質とセメントのような水硬
性物質とを主成分とする複合体である。B. Prior art and its problems Hydraulic inorganic paper products are composites whose main components are la, fibers such as asbestos, and hydraulic substances such as cement, as typified by asbestos slate boards.
その主たる製造方法は1石綿等の繊維成分とセメント等
の水硬性結合成分を他の添加剤と共に5〜30重量%の
水分散液(抄造スラリー)とした後、これを丸網又は長
網上に抄き上げ、脱水後成型、硬化、乾燥して製品とす
る湿式抄造法である。The main manufacturing method is to make a 5-30% by weight aqueous dispersion (papermaking slurry) of a fiber component such as asbestos and a hydraulic binding component such as cement together with other additives, and then pour this onto a round net or fourdrinier. This is a wet papermaking method in which the paper is made into paper, dehydrated, molded, hardened, and dried to produce a product.
この方法は簡単な設備で生産性が高く、高強度の安価な
不燃材を提供するものでろり、かかる製品は建築材料と
して幅広い分野で多量に使用されている。This method is highly productive with simple equipment, and provides a high-strength, inexpensive noncombustible material, and such products are used in large quantities as building materials in a wide range of fields.
かかる水硬性無機質抄造製品での石綿の役割は(1)
抄造工程における高生産性付与効果(a) 併用さ
れる繊維質の均一な分散性の付与(b) 水硬性物質
を主とする粒子状物質の捕捉と適当な戸水性の付与
(C) メーキングロールや成型ロールでの層間剥離
や、皺1水割れ現象の防止
(dl 表面平滑性、プレス成型時の型付は性の付与
+e) グリーンシートの強力向上(取扱性の向上)
(2)製品物性の確保(水硬性物質の補強)(a)
曲げ1引張り、衝撃強度等の機械的物性の向上
(b) 寸法安定性の付与
fc) 耐久性の向上
と言われている。さらに例えは不燃性を損わない等水硬
性物質の本来有している特長をほとんど低下させること
がない。加えて非常に安価な物質である。The role of asbestos in such hydraulic inorganic paper products is (1)
Effect of imparting high productivity in the papermaking process (a) Improving uniform dispersibility of the fibers used in combination (b) Capturing particulate matter, mainly hydraulic substances, and imparting suitable water resistance (C) Making roll Prevention of delamination and wrinkle 1 water cracking phenomenon during molding and forming rolls (dl surface smoothness, imprinting during press molding imparts flexibility +e) Improving the strength of green sheets (improving handleability)
(2) Ensuring product physical properties (reinforcement of hydraulic substances) (a)
Improvement in mechanical properties such as bending and tensile strength and impact strength (b) Improving dimensional stabilityfc) It is said to improve durability. Furthermore, the properties of the hydraulic material, such as non-combustibility, are hardly reduced. In addition, it is a very cheap substance.
かくの如く無機質抄造製品における石綿の後側は極めて
重要であり、すぐれた物性を有する安価な該製品は石綿
の存在なしにはあり得ないとまで言われる所以である。As described above, the asbestos side in inorganic paper products is extremely important, which is why it is said that such inexpensive products with excellent physical properties would not be possible without the presence of asbestos.
石綿のかかるすぐれた特性は、石綿がフィブリル状物質
であること、水硬性物質との親和性に富むこと、高強力
1高ヤング率であること、無機質繊維であること、保水
性が高いこと等に起因する。The excellent properties of asbestos include that asbestos is a fibrillar material, has high affinity with hydraulic substances, has high tenacity and high Young's modulus, is an inorganic fiber, and has high water retention. caused by.
一方石綿は該石綿を含有する製品を製造する時及び加工
、!工する時に空気中にその粉塵を発生する。On the other hand, asbestos is used when manufacturing and processing products containing asbestos. During construction, dust is generated in the air.
近年石綿の微細な粉塵が人体に吸引されると、肺がん等
を引き起こすことが明らかにされつつあり、その使用は
しだいに法規制等により制限されはじめ1使用禁止の方
向へ向う気配すらある。In recent years, it has become clear that fine asbestos dust, if inhaled into the human body, can cause lung cancer, etc., and its use is gradually being restricted by laws and regulations, and there are even signs that its use may be banned.
ざらに石綿産出国が特定国に偏在しており、又資源枯渇
の問題もある。Asbestos-producing countries are unevenly distributed in specific countries, and there is also the problem of resource depletion.
かかる状況下で多量に石綿を含む水硬性無機質抄造製品
にかわって石Mを全く含凍ずに石綿使用時と同等の高生
産性と高性能を有する水硬性無機質抄造製品の提供が強
く望まれている。Under such circumstances, it is strongly desired to provide a hydraulic inorganic paper product that does not contain stone M at all and has the same high productivity and performance as when using asbestos, instead of a hydraulic inorganic paper product that contains a large amount of asbestos. ing.
従来から石綿を他の物質で代替することにより湿式抄造
法で製品を作る試みかなされてきたが充分ではなくごく
限定的な用途に使用されているのみである。Attempts have been made to replace asbestos with other materials to produce products using a wet papermaking method, but these have not been sufficient and have only been used for very limited purposes.
その理由は既1小の如く石綿のすぐれた水硬性物質捕捉
性3層間剥離防止、型打り性付与、すぐれた補強性寺を
満足する代替物がないことによる。The reason for this is that there is no substitute that satisfies asbestos's excellent properties of absorbing hydraulic substances, preventing delamination, imparting moldability, and providing excellent reinforcing properties.
特開昭55−121947号、同55−12194 R
号はパルプ、凝集剤、ガラス繊維の組合せにより、ガラ
ス繊維の分散性、水硬性物5に等の捕捉性ヶ向上し、石
綿代替を計ったものであるが、分散性。JP-A-55-121947, JP-A No. 55-12194 R
The combination of pulp, flocculant, and glass fiber improves the dispersibility of glass fiber and the ability to capture hydraulic substances, etc., and is intended to replace asbestos.
捕捉性共に不光分である。特に捕捉性は1凝集剤の効果
はうかがわれるもののまたかだか70%程匿であり、操
業生理上問題である。さらに層間剥離等の問題も解決さ
れていない。Both the capture ability and the opacity. In particular, although the effect of the flocculant 1 can be seen in terms of trapping ability, it is still only about 70% trapped, which is a problem in terms of operational physiology. Furthermore, problems such as interlayer peeling have not been solved.
又特公昭57−60315号にはパルプと比較的細い繊
維(例えはロックウール)にて水硬性物質の捕捉性を一
ヒげ1酊アルカリカラス繊維にて製品物性をあげる技術
が開示されている。In addition, Japanese Patent Publication No. 57-60315 discloses a technology that improves the product's physical properties by using pulp and relatively thin fibers (for example, rock wool) to capture hydraulic substances, and by using alkaline glass fibers. .
核技術も水硬性物質の捕捉性が不充分であり、又層間剥
離、型付は性が大きな問題である。σらに耐アルカリガ
ラス繊維の分散を二りが悪いために補強効果が不充分で
、製品の表面性も悪い。Nuclear technology also has insufficient ability to trap hydraulic substances, and delamination and molding are major problems. Additionally, the reinforcing effect is insufficient due to the poor dispersion of the alkali-resistant glass fibers, and the surface properties of the product are also poor.
特開昭59−73463号に1公、ベントナイト、パル
プで水硬性物質の捕捉性をあげ1 ビニロン等で補強効
果を上げる試みがなされている。In JP-A-59-73463, attempts have been made to improve the trapping of hydraulic substances using bentonite and pulp, and to increase the reinforcing effect using vinylon and the like.
水硬性物質の捕捉性はベントナイト使用の効果がみられ
るものの、操莱生産上は不光分で6C1又ベントナイト
の1更用方法を特定しない限り補強繊維の分散性が悪く
1補強効果か出にくい。Although the use of bentonite is effective in trapping hydraulic substances, the dispersibility of reinforcing fibers is poor and it is difficult to obtain a reinforcing effect unless a method for using 6C1 or bentonite is determined in terms of opaque content.
以上のいっれの公知技術も既述の如き数々のすぐれた特
性ケ有する石綿を代替するには不光分であり1石M6使
用時の高生産性、すぐれた製品物性には遠く及ばない。All of the above-mentioned known techniques are too light to replace asbestos, which has a number of excellent properties as described above, and are far from achieving the high productivity and excellent physical properties of the product when using one M6 stone.
本発明者等はかかるすぐれた特性を有する石綿を代替す
るためには1種々の成分を複合し、それぞれの特性に加
えて相乗作用を引き出すことがポイントと考え、鋭意研
究の結果本発明に到達しkものである。The present inventors believe that in order to replace asbestos, which has such excellent properties, it is important to combine various components and bring out synergistic effects in addition to the properties of each component, and as a result of intensive research, they have arrived at the present invention. It's a good thing.
C本発明の構成
その要旨は+a1本発明で規定する膨潤度が2〜10の
ベントナイトとtblパルプの分散数に、tc)補強用
極細、(d)天然丑/ζは/及び人造繊維状無機物を分
散させたうえで、(e)セメント寺の水硬性無機質を添
加してなる抄輩用ヌラリーを、if)凝集剤を加えつつ
抄き上けてなる水硬性無機質抄造製品及びその製造方法
である。C) Structure of the present invention The gist thereof is +a1 The dispersion number of bentonite and TBL pulp having a swelling degree of 2 to 10 as defined in the present invention, tc) ultrafine reinforcement, (d) natural ox/ζ/ and artificial fibrous inorganic material. A hydraulic inorganic paper product obtained by dispersing and then (e) adding a cement temple's hydraulic inorganic material to a paper-making nullary, and if) adding a flocculant to the paper-making product and its manufacturing method. be.
本発明者等は褌々の成分を複合するという本発明と同様
な考えにもとづいて特願昭58−1312)51号を提
案したが、補強用繊維等の繊維質の分散性、セメント等
の水硬性無機質の捕捉性1層間剥離防止性、表面性、型
付は性等が−や八−不足であり、これらの改善に力点を
おいて検討した結果が本発明であり、膨潤度を特定した
ベントナイトを使用するところに待機がある。即ちベン
トナイト自体の特性と他の物質との相乗作用により1石
綿な17の高生産性、昼性能の湿式抄造製品を提供する
ものである。The present inventors proposed Japanese Patent Application No. 58-1312) 51 based on the same idea as the present invention of compositing the components of loincloth, but the dispersibility of fibers such as reinforcing fibers, cement, etc. The scavenging ability of hydraulic inorganic materials, anti-delamination properties, surface properties, molding properties, etc. are lacking in - and -8-, and the present invention is the result of studies focusing on improving these. There is a standby where bentonite is used. That is, due to the characteristics of bentonite itself and the synergistic effect with other substances, it is possible to provide a wet paper-made product that is free of asbestos and has high productivity and daytime performance.
石綿のない系での湿式抄造製品の第一の問題点は補強繊
維等の繊維質の分散性不良である。The first problem with wet paper-formed products in asbestos-free systems is poor dispersibility of fibers such as reinforcing fibers.
かかる分散性は本発明の特定し′fC膨潤度のベントナ
イトを特定した方法で使用することによっての与著し、
く改善される。Such dispersibility is achieved by using bentonite of the present invention with a specified 'fC swelling degree in a specified manner,
It is greatly improved.
即ち本発明の構成成分であるパルプを抄造スラリー全固
形分に対して1〜dAf k 9)相当になる」。That is, the pulp, which is a component of the present invention, is equivalent to 1 to dAf k 9) relative to the total solid content of the papermaking slurry.
うな謎淀に分散させた水分散液に膨潤度2〜8のベント
ナイトを2〜20 塚i1i%相当を添加するか、ある
いはベン2−イトのガ赦b、にパルプをhミ加するか、
した後、ハルバー等で攬トを分散した水分散散7作成す
る。該水分散故に補強用極細4らびに天然及び/′て罠
は人造繊維状無機物(以−ト繊維状無機物と略記)全冷
加し、攪拌分散した上で所定−の水硬性無機物に加えて
抄造用スラリーとなす力を去である。Either 2 to 20% of bentonite with a swelling degree of 2 to 8 is added to the aqueous dispersion dispersed in the water, or the pulp is added to the bentonite mixture.
After that, make a water dispersion 7 by dispersing the water using a halber or the like. Because of the water dispersion, the reinforcing ultrafine 4 and natural and/or traps are made by completely cooling the artificial fibrous inorganic material (hereinafter abbreviated as fibrous inorganic material), stirring and dispersing it, and then adding it to the specified hydraulic inorganic material. It has the power to be used as a slurry for paper making.
ベントナイトとパルプの水分散(i &C補強用繊維、
繊維状」〔;(壁物を加えることが該11f]強川域維
等の分散性−と向上ぜせるポイントである。Water dispersion of bentonite and pulp (I & C reinforcing fibers,
The key point is to improve the dispersibility of fibrous fibers, etc. (adding walls is the key to improving the dispersibility of 11f).
ベアトナ1′トの膨;1光風と(仕り、ドの前定法にも
とづいて得られた数値を意味する。即ち
(イ) −東磁既知の束注F紙165 C1]、 O囮
φを約60国φのカラスr斗上に装負して、ベントナイ
ト幻】5ノを秤櫨しび・凧上にのぞる。Beartona 1′ To expansion; 1 light wind and (Shiri, Do) means the value obtained based on the predetermined method, i.e. (a) - Tomagaki known bundle note F paper 165 C1], O decoy φ is approximately Mounted on a crow r doo of 60 countries φ, traced bentonite phantom] 5 on a kite.
(【−4常温の蒸留水音上部から洒i−揄王水して、試
料を湿潤させる。(-4) Sprinkle distilled water at room temperature from above to moisten the sample.
(ハ) しかる後試料に必靭uの水を補給σせるために
F紙の下部が水mlに浸る位In10−トを固定し、2
4時間放置する。水はF紙の毛管現象により補給される
ことになる。(c) After that, in order to replenish the sample with the necessary amount of water, fix the In10-t so that the lower part of the F paper is submerged in ml of water, and
Leave it for 4 hours. Water will be replenished by capillary action of the F paper.
に)放置後吸水w潤した試料をF紙と共にロートよシ取
り出し1磁製ブフナ−ロー) (110φ用)に移して
戸紙の付着分を除去する8度に吸引後秤量する(Wp)
(ホ)次に105°Cの乾燥機中で恒fflになる丑で
乾燥後秤量する(W2)
(ハ)別途F紙のみを同様にして重量をは〃1り風袋重
量とする(湿潤戸紙W3、乾燥F紙W4)(ト) 次
式によって膨潤度を算出する。After leaving it for a while, take out the wet sample with F paper through a funnel and transfer it to a porcelain Buchner row (for 110φ) to remove the adhesion on the door paper.Weigh it after suctioning at 8 degrees (Wp) ( E) Next, dry it in a dryer at 105°C to a constant ffl and then weigh it (W2) (C) Separately, do the same with only the F paper and weigh it by 1 to make it the tare weight (wet paper). W3, dry F paper W4) (g) Calculate the degree of swelling using the following formula.
Ws −W3
膨潤度−〜V2− ’VV4− ’
かかる膨潤度が2〜10のベントナイトとパルプの水分
散液に補強繊維等を添加することによってのみ満足すべ
き分散性が得られるものであυ。Ws -W3 Swelling degree -~V2- 'VV4-' Satisfactory dispersibility can only be obtained by adding reinforcing fibers etc. to an aqueous dispersion of bentonite and pulp having a swelling degree of 2 to 10 υ .
ベントナイト、パルプがそれぞれ単独でも、又補強繊維
等にベントナイト、パルプ水分散液を添加しても満足す
べき結果は得られない。Satisfactory results cannot be obtained even when bentonite and pulp are used alone, or when bentonite and pulp aqueous dispersions are added to reinforcing fibers.
石綿なしの糸での湿式抄造製品製造の第2の問題点は既
述の如くセメント等の水硬性無機物やその他の粒状物質
の捕捉性である。A second problem in producing wet paper products using asbestos-free yarn is the ability to trap hydraulic inorganic substances such as cement and other particulate matter, as mentioned above.
ざらには丸網方式のようにメーキングロールに巻取り積
層する場合、切断後/−ト状へ展開のする時のひび割れ
現象、積層シート間の層間剥離。When the sheets are rolled up and laminated on a making roll, such as in the round net method, cracking occurs after cutting/unrolling into a flat shape, and delamination occurs between the laminated sheets.
波状等の型付は性、表面の平滑性が不良という問題があ
る。抄造スラリー中の固形分の捕捉率は85%以上、好
ましくは90%以上必要である。Embossed patterns such as wavy patterns have problems with poor quality and surface smoothness. The capture rate of solid content in the papermaking slurry needs to be 85% or more, preferably 90% or more.
かかる種々の問題点は膨潤度2〜10のベントナイトを
抄造スラリー固形分に対して2〜10重量%、パルプ1
〜8重量%、繊維状無機物質05〜10ホ鴬饅、水硬性
無機物に対して50〜500PPmの涙果剤の組合せに
よってのみ満足すべき解決がなされることを見い出した
。These various problems can be solved by adding bentonite with a swelling degree of 2 to 10 to 2 to 10% by weight based on the solid content of the papermaking slurry, and 1 to 1% of the pulp.
It has been found that a satisfactory solution is achieved only by a combination of ~8% by weight of fibrous minerals, 05-10 PPm of fibrous minerals, and 50-500 PPm of teardrops for hydraulic minerals.
本発明のベントナイトとは1モンモリロン石群鉱物を主
成分とするもので、少なくともその含有量が40%以上
のものを意味する。The bentonite of the present invention is mainly composed of 1-montmorillonite group minerals, and means that its content is at least 40% or more.
モンモー゛リロン石群鉱物の例としては、モンモリロン
石、バイデライト、ノントロナイト、ヘクトライト、サ
ポナイト等がある。Examples of montmorillonite group minerals include montmorillonite, beidellite, nontronite, hectorite, and saponite.
かかるベントナイトの膨潤度は2〜10、好1しくV′
i4〜7でなけれはならない。2未泄畦では配合量が少
ない場合は全く効果がなく、又配合量か多い場合粒状物
質の捕捉性は向上すめものの、繊維質の分散性同上に寄
与せす、又/−トか硬くなり過ぎるためか、層間剥離を
増長し、又小σなひび割れの発生により型付は注を著し
く悪化きせる。The degree of swelling of such bentonite is between 2 and 10, preferably V'
Must be i4-7. 2. In the case of non-excretion ridges, if the amount is small, it will have no effect at all, and if the amount is too large, the particulate matter trapping performance will be improved, but it will contribute to the dispersibility of the fibers and/or become hard. Perhaps because it is too much, delamination increases, and small cracks occur, making molding significantly worse.
10より大きくては膨潤が大きすぎてF水1」−が悪化
したり、ンリンダー金網やフェルトを汚すために均一な
シートが作fないし、又メーキングローラ一部又は生板
が伸びてローラー曲に密着せず生産性を著しく低下させ
ることになる。If it is larger than 10, the swelling will be too large and the water will deteriorate, and the unlinter wire mesh or felt will be soiled, making it impossible to produce a uniform sheet.Also, part of the making roller or green plate will stretch, causing the roller to bend. This will result in a significant drop in productivity due to poor adhesion.
ベントナイトの配合量は抄造スラリー固形分罠対して2
〜20重量%でなければならない。膨潤度が本発明の範
囲内において小さい場合は多い方が好ましいし、大きい
場合はその逆が好ましい。The amount of bentonite is 2 for the solid content trap of papermaking slurry.
~20% by weight. If the degree of swelling is small within the scope of the present invention, it is preferable to increase it, and if it is large, the opposite is preferable.
2重量%以下では効果が期待でさないし、20重量%以
上では膨潤度が太き過さた場合と同様な現象を呈して好
丑しくない。なお粒度は150メツシユ以下にすること
が使用上好ましい。If it is less than 2% by weight, the effect is not as expected, and if it is more than 20% by weight, the same phenomenon as when the degree of swelling is too large is exhibited, which is not desirable. Note that it is preferable for the particle size to be 150 mesh or less.
本発明におけるパルプ配合量は抄造スラリー固形分に対
して1〜8本鎗チでなければならない。In the present invention, the pulp content must be 1 to 8 pulps per solid content of the papermaking slurry.
1重量%未満では粒子状物質の捕捉性が低下し、8重量
%より多くては製品の難燃性を損うし、又層間剥離を増
長するので好ましくない。If the amount is less than 1% by weight, the ability to trap particulate matter will decrease, and if it is more than 8% by weight, the flame retardancy of the product will be impaired and delamination will increase, which is not preferable.
パルプの?mMとしては天然1合成いづれの・ぐルプで
もよい。天然パルプは、針葉樹、広葉樹からの未晒、晒
パルプが主として用いられるが、ワラ。Of pulp? In mM, either natural or synthetic groups may be used. Natural pulps are mainly unbleached and bleached pulps from softwoods and hardwoods, but straw is also used.
竹、木綿、麻、ラミー、こうぞ、みつまた等から得られ
るパルプも使用できる。又新聞紙や紙袋。Pulp obtained from bamboo, cotton, hemp, ramie, kozo, mitsumata, etc. can also be used. Also newspapers and paper bags.
タンボール箱等から得られる回収故紙も使用できる0
カナディアンフリーネスとしては30〜750Mが好筐
しく、より好ましくは50〜300dである。Recovered waste paper obtained from cardboard boxes etc. can also be used. Canadian freeness is preferably 30 to 750 d, more preferably 50 to 300 d.
合成パルプとしてはポリオレフィン糸パルプ。Polyolefin thread pulp is a synthetic pulp.
例えばs’wp(三井ゼラバツク製ポリエチレン系パル
プ)やポリアラミド糸パルプ、例えばケプラ/<ルグ(
デュポン製)が使用できるし、又これ等に形状が類似し
たフィブリル状の物質であれば何でもよい。For example, s'wp (polyethylene pulp manufactured by Mitsui Zerabakku), polyaramid yarn pulp, such as Keppra/<Lug (
(manufactured by DuPont) can be used, or any fibrillar material similar in shape to these can be used.
本発明における繊維状無機物質としては太さ3〜15μ
m、長さ01〜10mで、石綿以外であれば天然のもの
でも人造のものでもよい。In the present invention, the fibrous inorganic substance has a thickness of 3 to 15 μm.
m, length 01 to 10 m, and may be made of natural or artificial materials other than asbestos.
人造繊維状無機物質としては、ガラス系繊維、例えば一
般的なAガラス、Eガラス繊維があり、又酸化ジルコニ
ウムを添加した耐アルカリガラス繊維があり、ざらにン
ラス繊維、スラグウール。Artificial fibrous inorganic substances include glass fibers, such as common A glass and E glass fibers, alkali-resistant glass fibers containing zirconium oxide, coarse fibers, and slag wool.
ロックウール、セラミック線維等も用いることができる
し、又該#I&維等の2種以上を組合せて使用してもよ
い。Rock wool, ceramic fibers, etc. may also be used, and two or more types of #I & fibers may be used in combination.
かかる繊維状無機物質は、他の物質との相乗作用によっ
て抄き上げ時のセメント等の粒状物質の捕捉性向上に%
に効果的であり、その効果は長さが短かい方が太きい。Such fibrous inorganic substances have a synergistic effect with other substances to improve the ability to trap particulate materials such as cement during papermaking.
The shorter the length, the greater the effect.
従って繊維状無機物質の長σは1抄き上げる時の長さ、
即ち製品中の長さを意味し、原料の長さではない。原料
の長さはJO■以上あっても、ミキサー、パルパー、チ
ェスト等で折損し、60%以上が0.1〜10隨、好ま
しくld1〜5寵になればよい。繊維の太さは直径が円
換算で3μ未満でVi戸水性が異常に悪化し、又健康障
害上もよくないと言われている。15μ以上では効果が
ない。配合JI!Lは抄造スラリー固形分に対し、て0
.5〜10重量%、好1しくけ1〜5重量%である。0
.5係未満では効果が乏しいし、10重量%より多くて
はグリーンシートが硬くなり過ぎてメーキングロールへ
の治水性が恕<、又シート状へ展開する場合にひび割れ
や層間剥離が起こりやすく、文型付は性も不良となる。Therefore, the length σ of the fibrous inorganic material is the length when one paper is made,
That is, it means the length in the product, not the length of the raw material. Even if the length of the raw material is JO2 or more, it may be broken in mixers, pulpers, chests, etc., and 60% or more should be 0.1 to 10 mm, preferably 1 to 5 mm. It is said that if the diameter of the fiber is less than 3 μm in terms of yen, the Vit water resistance will be abnormally deteriorated and it will also be bad for health. There is no effect at 15μ or more. Compound JI! L is 0 relative to the solid content of papermaking slurry.
.. It is 5 to 10% by weight, preferably 1 to 5% by weight. 0
.. If it is less than 5% by weight, the effect will be poor, and if it is more than 10% by weight, the green sheet will become too hard and the water control properties for the making roll will be poor.Also, when it is rolled out into a sheet, cracking and delamination will easily occur, and the pattern will be poor. If attached, the quality will also be poor.
凝集剤は一般的な凝集剤でよい。有機系、無機系、ある
いはアニオン、ノニオン、カチオン、いづれのイオン性
のものでもよいが、セメント凝集剤として一般に用いら
れているアニオン系高分子凝集剤が好1しく用いられる
。The flocculant may be a common flocculant. It may be organic, inorganic, or anionic, nonionic, or cationic, but anionic polymer flocculants commonly used as cement flocculants are preferably used.
凝集剤の使用量は水硬性無機物に対して50〜500
ppmが好ましい。50 ppm未満では効果が乏しく
、500ppmを越えてVi凝集力が強すき゛て凝集体
が大きなブロック状になったシ戸水性が良過ぎてヘッド
差がとれないなどのために均一なシートを作ることがむ
づかしい。さらに、フェルトを汚染し生産性を損う結果
となる。The amount of flocculant used is 50 to 500 per hydraulic inorganic material.
ppm is preferred. If it is less than 50 ppm, the effect is poor, and if it exceeds 500 ppm, the Vi cohesive force becomes strong and the aggregates become large blocks, and the water properties are too good to make a uniform sheet because the head difference cannot be corrected. It's difficult. Furthermore, this results in contamination of the felt and loss of productivity.
以上の如く、特定したベントナイト、パルプ、繊維状無
機物、凝集剤をそれぞれ特定した鼠で組合せることによ
ってのみ、石綿なしの系での水硬性湿式抄造製品の製造
における第2の問題点である水硬性無機物等の粒状物質
の捕捉性不足、さらにメーキングロールよりシート状へ
展開時のひび割れ、層間剥離、型付は性及び表面性不良
等を解決することが可能となった。As described above, only by combining the specified bentonite, pulp, fibrous inorganic material, and flocculant with the specified methods, water, which is the second problem in the production of hydraulic wet paper products in an asbestos-free system, can be solved. It has become possible to solve problems such as insufficient capture of particulate matter such as hard inorganic materials, cracking when rolling out from a making roll into a sheet, delamination, and poor moldability and surface quality.
その理由は判然としないが、それぞれ−≠品の効果から
予想されるよシも鴬くべき大きな効果を呈することより
考えて、相乗作用があるものと思われる。The reason for this is not clear, but it seems that there is a synergistic effect, considering that each has a greater effect than expected from the effect of -≠product.
石綿は既述の如く秒置性向上と共に製品の補強の役割を
有している。石綿のない場合は一般に補強繊維の組合せ
が必要であり、本発明においても公知の補強用繊維を使
用する必要がある。As mentioned above, asbestos has the role of improving the shelf life and reinforcing the product. In the absence of asbestos, a combination of reinforcing fibers is generally required, and the present invention also requires the use of known reinforcing fibers.
補強用繊細は水硬性無機質硬化体の弱点である引張シ、
曲げ、衝撃強度を向上させるものであるが、特に引張り
、曲げ強度の向上が重をである。Delicate reinforcing materials are tensile strength, which is the weak point of hydraulic inorganic cured materials.
It improves bending and impact strength, but the improvement in tensile and bending strength is particularly important.
そのための繊維が具備すべき条件は、繊維の引張強度、
ヤング率が高いこと、セメント等の水硬性無機質との接
着がよいこと、耐アルカリ性があること、健康上無簀で
あること、さらに安価であることが望ましい等である。The conditions that the fiber must meet for this are the tensile strength of the fiber,
It is desirable that it has a high Young's modulus, that it has good adhesion to hydraulic inorganic materials such as cement, that it has alkali resistance, that it is free from water for health reasons, and that it is inexpensive.
上記条件を満たす最も好ましい補強用繊維はポリビニル
アルコール(以下PVAと略記)系繊維であシ、さらに
ポリアクリルニトリル系繊維も好ましく用いられる。そ
のほかアミド系、アラミド系繊維、カーボン繊維、耐ア
ルカリガラス繊維等も用いることが出来る。これらの補
強用繊維の引張り強度はデニール当シ5g以上、ヤング
率はデニールあた。99(1’以上が必要である。The most preferable reinforcing fibers satisfying the above conditions are polyvinyl alcohol (hereinafter abbreviated as PVA) fibers, and polyacrylonitrile fibers are also preferably used. In addition, amide fibers, aramid fibers, carbon fibers, alkali-resistant glass fibers, etc. can also be used. These reinforcing fibers have a tensile strength of 5 g or more per denier and a Young's modulus of 5 g per denier. 99 (1' or more is required.
又化学的、物理的手段にて表面が改質されて水硬性無機
物との接着性が改善されたものであれば、本来疎水性で
接着性の悪い繊維たとえばポリオレフィン系繊維でも強
度、ヤング率が前述の値以上であれば使用できる。配合
量は抄造スラリー固形分に対して0.5〜5重量%、好
ましくは1〜3重量−でなけれはなI2ない。05重景
−未満では補強効果がなく5重量%を越えると分数不良
となり均一なソートが得られないうえに高価となる。In addition, if the surface has been modified by chemical or physical means to improve its adhesion to hydraulic inorganic substances, even fibers that are inherently hydrophobic and have poor adhesion, such as polyolefin fibers, can have improved strength and Young's modulus. It can be used if it is above the above value. The blending amount must be 0.5 to 5% by weight, preferably 1 to 3% by weight, based on the solid content of the papermaking slurry. If it is less than 0.05% by weight, there will be no reinforcing effect, and if it exceeds 5% by weight, the fraction will be defective, making it impossible to obtain uniform sorting, and it will be expensive.
さらに繊度は0.1〜20デニールが好ましい範囲であ
る。又アスペクト比(繊維の直径と4a維長の比)は2
00〜900が分散性、補強柱の兼合いで好ましい範囲
である。Furthermore, the preferable range of fineness is 0.1 to 20 deniers. Also, the aspect ratio (ratio of fiber diameter to 4a fiber length) is 2.
A preferable range is 00 to 900 in terms of dispersibility and reinforcement pillars.
本発明で使用できる水硬性無機物としては次のようなも
のがある。代表的なものはポルトランドセメントである
。ポルトランドセメントには普通ポルトランドセメント
、中庸熱ポルトランドセメント、早強ポルトランドセメ
ント、超早強ポルトランドセメント、白色ポルトランド
セメント、耐硫酸塩ポルトランドセメントがある。混合
セメントとしての高炉セメント、シリカセメント、フラ
イアンシュセメントがある。特殊セメントとしてのアル
ミナセメント、超速硬セメント、コロイドセメント、油
井セメントが用いられる。その細石こう音用いた半水セ
ラコラ及び水和セラコラとスラグとの混合水硬性物、マ
グネシアなども用いることも可能であるが、基本的には
水硬性無機物であればいづれでもよい。Hydraulic inorganic substances that can be used in the present invention include the following. A typical example is Portland cement. Portland cement includes ordinary Portland cement, moderate heat Portland cement, early strength Portland cement, ultra early strength Portland cement, white Portland cement, and sulfate-resistant Portland cement. Mixed cements include blast furnace cement, silica cement, and flyanche cement. Special cements such as alumina cement, super fast hardening cement, colloidal cement, and oil well cement are used. It is also possible to use semi-hydrated ceracola using fine gypsum, a mixed hydraulic material of hydrated ceracola and slag, magnesia, etc., but basically any hydraulic inorganic material may be used.
又目的に応じ水硬性無機物の一部を他の物質に置きかえ
ることも可能である。例えば膨張性混和材としてのカル
シウムサルホアルミネート等石灰系のもの、軽量化剤と
してのパーライト、シラスバルーン、その他硅砂シラス
、マイカ、蛇紋岩、炭カル、クレー、カオリン、タルク
、バーミキュライト、シリカ、セビオライト、アクパル
ジャイト等を用いることができる。It is also possible to replace a part of the hydraulic inorganic substance with another substance depending on the purpose. For example, lime-based materials such as calcium sulfoaluminate as an expansive admixture, perlite as a lightening agent, shirasu balloon, other silica sand shirasu, mica, serpentine, charcoal, clay, kaolin, talc, vermiculite, silica, and seviolite. , acpargite, etc. can be used.
D 本発明の効果、用途
以上述べてきた如く本発明はベントナイト、パルプ、補
強用繊維、繊維状無機質、凝集剤のそれぞれ特定した材
料を、特定の方法で使用し、かつ特定の範囲内にて複合
することによシ、それぞれの特性に材料間の相乗作用に
よる効果が加わって高生産性で高性能の石綿なしの水硬
性湿式無機質抄−1fXl!!品を提供することに成功
したものである。D Effects and applications of the present invention As described above, the present invention uses specified materials, bentonite, pulp, reinforcing fibers, fibrous inorganic materials, and flocculants, in a specified method and within a specified range. By combining the properties of each material, the synergistic effect between the materials is added, resulting in high productivity and high performance asbestos-free hydraulic wet inorganic paper - 1fXl! ! It was successful in providing the product.
本発明によって得られるかかる石綿を含有しない水硬性
無機質抄造製品は、従来からの石綿含有製品の代替とし
て利用できるのであるが、石綿を含有していないという
ことでその用途は史にひろがることが期待できる。The asbestos-free hydraulic inorganic paper product obtained by the present invention can be used as a substitute for conventional asbestos-containing products, and because it does not contain asbestos, its use is expected to expand throughout history. can.
用途例を記載するならば、波形無石綿板、アンケル等の
屋根材、無石綿平板、パーライト版、パルプセメント板
、サイディング材、カーテンウオール、耐火間仕切壁、
外壁パネル等の建築物、船舶等の内外装材、あるいは無
石綿前等があるOE 実施例
以下実施例をもって本発明を説明する。Examples of applications include corrugated asbestos-free boards, roofing materials such as Ankel, asbestos-free flat boards, perlite boards, pulp cement boards, siding materials, curtain walls, fireproof partition walls,
EXAMPLES The present invention will be explained with reference to examples below.
実施例−1
ららかじめ水に浸漬し膨潤せしめた膨潤度4のベントナ
イトとカナディアンフリーネス130 KlのNUKP
(針葉樹未晒パルプ)を白水を入れたスラツンヤー付
パルパーに添加し、約2%の磯度として10分間攪拌し
た。Example-1 Bentonite with a swelling degree of 4 and NUKP with a Canadian freeness of 130 Kl soaked in water and swollen.
(Softwood unbleached pulp) was added to a pulper with a slat stylus containing white water and stirred for 10 minutes at a roughness of about 2%.
しかる後繊維状無機物である平均直径4μのスラグウー
ル及び補強用繊維でらるPVA繊維を同時に添加し、2
分間攪拌した。After that, slag wool with an average diameter of 4μ, which is a fibrous inorganic material, and PVA fiber, which is a reinforcing fiber, are added at the same time.
Stir for a minute.
スラグウールはあらかじめパルパーに投入してシェアー
を加えた後、ふるい分けして0.5〜2mにしたものを
使用した。The slag wool was previously put into a pulper, added with shear, and then sieved to a size of 0.5 to 2 m.
又PVA繊維繊維線6繊1.6 テ= −ル、強度12
.5f/dr (drはデニールノ略)、ヤング率32
09/r。Also, PVA fiber fiber wire 6 fibers 1.6 strands, strength 12
.. 5f/dr (dr stands for denier), Young's modulus 32
09/r.
繊維長!5m+のものを使用した。Fiber length! A 5m+ one was used.
かかる水分散液に水硬性物質であるポルトランドセメン
トを添加し、5分間攪拌した後にチェストに移送し、約
1209/71の抄造用スラリーとじた。Portland cement, which is a hydraulic substance, was added to the aqueous dispersion, stirred for 5 minutes, and then transferred to a chest to form a papermaking slurry of about 1209/71.
該抄造用スラリーをアニオン系凝集剤(市川毛織のIK
フロックT−210)及び必碩量の白水を添加しつつ、
抄造槽(バット)へ導入して60メツシユの丸網上に抄
き上げ、メーキングローラーに巻き取り、切断後の生板
2に50に9/crAで加圧成型した。養生条件は50
℃、24時間の加熱養生後、気乾状態で4週間放置とし
た。The papermaking slurry was treated with an anionic flocculant (Ichikawa Keori's IK).
While adding floc T-210) and the required amount of white water,
The material was introduced into a papermaking tank (vat) and formed onto a 60-mesh round net, wound up on a making roller, and pressure-molded into a green board 2 after cutting at a pressure of 50 to 9/crA. The curing conditions are 50
After heating and curing at ℃ for 24 hours, it was left to air dry for 4 weeks.
配合量及びデーターを表−1に示した。該衣中に示した
分散性は、繊維状物質の分散状態を意味し、抄造スラリ
ーヲ丸網へ抄き上ける際の丸網ネット上のデコボコ状’
r6 k E43.%し、デコボコの少ない非常に良好
な分数状態を◎、デコボコの多い分散不良状態ヲ×とシ
2、その間を2ランクr(わけて○、△とした。バット
水位(d充分均一なシートを抄き上げ可能な場合を◎、
水位がtlとんど取れずに均一なシートしか出来ない場
合及びV水が悪過ぎてバットより抄造スラリーがオーバ
ーするような状態を×、その中間のランクを○、Δとし
て定性的に判断した。又ポルトランドセメント等の捕捉
率(%)は抄造槽内の抄き上げ前のスラリー濃度(Wl
)と丸網を通して排出されたt[水儂度(Wl)からメ
ーキングロール後の生板を手で層間を剥離させることK
より定性的に判定した。剥離方向に力を加えても眉間が
不明確で剥離しにくい状態をO1簡単に剥離する状態を
×1その間を2ランクにわけて○、△としだ。The blending amount and data are shown in Table-1. The dispersibility shown in the coating means the dispersed state of the fibrous substance, and the unevenness on the round net when papermaking slurry is scooped up into the round net.
r6k E43. %, a very good fractional state with few bumps is ◎, a poor dispersion state with many bumps is marked as × and 2, and those in between are 2 ranks r (divided into ○ and △. Bat water level (d) is a sufficiently uniform sheet. ◎, if it is possible to extract
Cases in which the water level could not be adjusted to TL and only a uniform sheet was formed, and cases in which the water level was too low and the papermaking slurry exceeded the vat were qualitatively judged as ×, and the intermediate ranks as ○ and Δ. . In addition, the capture rate (%) of Portland cement, etc. is determined by the slurry concentration (Wl) before papermaking in the papermaking tank.
) and the water temperature (Wl) discharged through a round screen.
The judgment was made more qualitatively. The condition where the glabella is unclear and difficult to peel even when force is applied in the peeling direction is O1, and the condition where it is easily peeled is ×1, and the two ranks are divided into ○ and △.
型つけ時のひび割れはメーキングロール後の生板に通常
の波形成型を施してひび割れ状態を観察した。To check for cracks during molding, a normal wave-forming mold was applied to the raw board after the making roll, and the state of the cracks was observed.
曲は強度はJISA12)081−建築用ボード類の曲
げ試験方法」によシ測定し、縦方向と横力向の平均値で
示した。水硬性物質等の捕捉性が変わると補強繊維の配
合量が夾質的に変わることになるので、真の補強性を比
較するために歩留り補正した曲げ強度を示した。The strength of the bending was measured according to JISA12)081-Bending test method for architectural boards, and was expressed as an average value in the longitudinal direction and the lateral force direction. If the ability to trap hydraulic substances changes, the blending amount of reinforcing fibers will also vary, so in order to compare the true reinforcing properties, yield-corrected bending strength is shown.
衝撃強度はJISK−7110のIzod試駁法により
縦方向のみをノツチなしで測定した。The impact strength was measured only in the longitudinal direction without notches using the Izod test method of JISK-7110.
比較例−1〜7
配合量及び測定データーを表−1に示したが、比較例−
1〜4は本発明を構成する物質のうち水硬性物質以外の
5種の成分のうちいづれか1棟が欠けた場合であり、比
較例−5〜7は2株欠けた場合で、本明細掛記載の公知
の技術に属する0参考例−1
石M6D1.3%、未叩解NUKP2%、残部ホルトラ
ンドセメントよりなる配合組成の石M & k 英施例
−1と同じ抄造機にて抄造し、ε刃側とj−だ。Comparative Examples-1 to 7 The blending amount and measurement data are shown in Table-1. Comparative Examples-1 to 7
1 to 4 are cases in which one of the five components other than the hydraulic substance among the substances constituting the present invention are chipped, and Comparative Examples 5 to 7 are cases in which two plants are chipped. 0 Reference Example-1 belonging to the known technology described above Stone M&K with a blending composition consisting of 1.3% Stone M6D, 2% unbeaten NUKP, and the balance consisting of Holtland Cement Paper was made using the same paper-making machine as Example-1, ε blade side and j-.
表−1より実施例−1は比較例に比しすぐれた抄造性と
物性を有し、石綿を使用した参考例−1と同等ないしそ
れ以上であることが1目瞭然である0
逆に本発明の構成吸素が一つでも欠けると、石綿並の抄
造性及び物性を得ることは出来ない。なお比較例−6〜
8に公知技術に属するものであるが、こね寺と比較する
と本発明の効果がいかに太きいかが理解出来る。From Table 1, it is clear that Example 1 has superior paper formability and physical properties compared to Comparative Examples, and is equivalent to or better than Reference Example 1 using asbestos. If even one of the constituent absorbers of the invention is missing, it will not be possible to obtain the same formability and physical properties as asbestos. Comparative example-6~
8 belongs to the known technology, but when compared with Konedera, it can be seen how great the effect of the present invention is.
実施例−2〜3、比較例−9〜10
実施例−1中のベントナイトの配合量f 3%(実施例
−2)、8チ(実施例−3)、1チ(比較例−9)、1
5%(比較例−10)としたこと及び補強繊維として高
強力アクリル繊維(強度B、5 ?/dr 、 −V
フグ率150り/dr)’i<使用した以外は全て実施
例1と同方法で抄造した結果を表−2にまとめた。Examples-2 to 3, Comparative Examples-9 to 10 Blend amount f of bentonite in Example-1 3% (Example-2), 8 inches (Example-3), 1 inch (Comparative Example-9) ,1
5% (Comparative Example-10) and high-strength acrylic fibers (strength B, 5?/dr, -V) were used as reinforcing fibers.
Table 2 summarizes the results of paper making in the same manner as in Example 1, except that the puffer fish ratio was 150 l/dr)'i<.
表 −2
註)比較例−10の場合、P水が悪過ぎて連続運転がむ
づかしかった。Table 2 Note) In the case of Comparative Example 10, the P water was so poor that continuous operation was difficult.
実施例以外は何等かの問題があり好ましくない。Examples other than the examples have some problems and are not preferable.
実施例−4〜5;比較例−11〜12
実施例−1中のN U K J−’のカナティアンフリ
ーネスを200 Illにした上で配合−1を2%(実
施例−4)、7%(実施例−5)、0.5%(比較例−
11)、10%(比較例−12)とした以外は全て実施
例−1と同一方法で抄造した結果を表−3にまとめた。Examples-4 to 5; Comparative Examples-11 to 12 The Canadian freeness of NUK J-' in Example-1 was set to 200 Ill, and Blend-1 was added to 2% (Example-4), 7 % (Example-5), 0.5% (Comparative example-
11) and 10% (Comparative Example 12), the paper was made in the same manner as in Example 1. The results are summarized in Table 3.
表 −3
実施例はいづれも満足すべき結果であるが、比較例は何
等かの問題がある。なおパルプの多い比較例−7は水硬
性無機質板の特長である寸法安定性が著しく不良となり
好ましくない。Table 3 All of the Examples have satisfactory results, but the Comparative Examples have some problems. Note that Comparative Example 7, which contains a large amount of pulp, is not preferable because the dimensional stability, which is a characteristic of hydraulic inorganic boards, is extremely poor.
実施例−6〜7;比較例−13〜12
)実施例−1中のスラグウールの配合量を2%(実施例
−6)、8%(実施例−7)、0.2%(比較例−13
)、15%(比依例−12))とした以外は全て実施例
−1に従って抄造した結果を衣−4に示した。Examples-6 to 7; Comparative Examples-13 to 12) The amount of slag wool in Example-1 was changed to 2% (Example-6), 8% (Example-7), and 0.2% (comparison). Example-13
), 15% (Comparative Example-12)) The results were shown in Cloth-4, where the paper was made in accordance with Example-1.
表 −4
比較例−13は繊維状物質の分散が慈く、補強性が低下
し、又ポルトランドセメント等の捕捉性が不満足である
。比較例−12)は生板が硬く、眉間剥離が起こり型伺
は性不良である。又メーキングロールよりソート状へ展
開する時にひび割れ現象を呈した。Table 4 Comparative Example 13 has poor dispersion of fibrous substances, poor reinforcing properties, and unsatisfactory ability to capture Portland cement and the like. In Comparative Example 12), the raw board was hard, peeling occurred between the eyebrows, and the mold appearance was poor. In addition, cracking occurred when it was rolled out into a sorted shape from a making roll.
実施例−8;比較例−15
実施例−1においてベントナイ]・の膨憫度を8、配合
量を3%、とした以外は実施例−1と全く同方法にて抄
造した(実施例−8)。実施例8においてベントナイト
のみ加時期をボルトランドセメントと同時に添加する以
外は実施例−8と全く同方法にて抄造した(比較例−1
5)。それぞれの結果を表−5に示した。Example-8; Comparative Example-15 Paper was made in exactly the same manner as in Example-1, except that in Example-1, the degree of swelling of Bentonai was 8 and the blending amount was 3% (Example-1). 8). In Example 8, paper was made in exactly the same manner as in Example 8, except that only bentonite was added at the same time as Bortland cement (Comparative Example 1).
5). The respective results are shown in Table-5.
表 −5
実施例の方法に従ってベントナイト全添加すると補強繊
維等の繊維状物質の分散性が良好であるが、ベントナイ
トの添加j11序を変えた比較例−15の場合は分散性
か慈<、イぶって補強効果も低下し、又F品の表面性も
よくなかった。Table 5: When all bentonite is added according to the method of the example, the dispersibility of fibrous materials such as reinforcing fibers is good, but in the case of Comparative Example 15, in which the order of addition of bentonite was changed, the dispersibility was poor. The reinforcing effect also deteriorated, and the surface properties of the F product were also poor.
Claims (1)
10重量%(以下特に断らない限り抄造スラリー固形分
に対する重量%)、パルプが1〜8%、補強用繊維が0
.5〜5%、天然または/および人造繊維状無機物が0
.5〜10%、凝集剤が50〜500ppm(対水硬性
無機物)、残部が主として水硬性無機物よりなる水硬性
無機質抄造製品 (2)ベントナイトの膨潤度が2〜10である特許請求
の範囲第1項記載の水硬性無機質抄造製品 (3)補強用繊維の繊度が0.1〜20デニール、アス
ペクト比200〜900、引張り強度が5g/デニール
以上、ヤング率が90g/デニール以上である特許請求
の範囲第1ないし第2項記載の水硬性無機質抄造製品 (4)補強用繊維がポリビニルアルコール系及びポリア
クリロニトリル系繊維である特許請求の範囲第1項ない
し第3項記載の水硬性無機質抄造製品(5)天然または
/および人造繊維状無機物の直径が3〜15μm(円換
算)、長さが0.1〜10mmである特許請求の範囲第
1項ないし第4項記載の水硬性無機質抄造製品 (6)パイプのカナディアンフリーネスが30〜750
mlである特許請求の範囲第1項ないし第5項記載の水
硬性無機質抄造製品 (7)1〜8%のパルプ水分散液に2〜10%のベント
ナイトを添加するか、ベントナイトの分散液にパルプを
添加するかして攪拌分散した水分散液に、0.5〜5%
の補強用繊維、天然または/および人造繊維状無機物0
.5〜10%を添加し、攪拌分散した分散液に残部の主
として水硬性無機物を添加してなる抄造スラリーを50
〜500ppm(対水硬性無機物)の凝集剤を添加しつ
つ抄造することを特徴とする水硬性無機質製品の湿式抄
造方法(8)ベントナイトの膨潤度が2〜10である特
許請求の範囲第7項記載の水硬性無機質製品の湿式抄造
方法 (9)補強用繊維の繊度が0.1〜20デニール、アス
ペクト比が200〜900、引張り強度が5g/デニー
ル以上、ヤング率が90g/デニール以上である特許請
求の範囲第7ないし第8項記載の水硬性無機質製品の湿
式抄造方法 (10)補強用繊維がポリビニルアルコール系及びポリ
アクリロニトリル系繊維である特許請求の範囲第7ない
し第9項記載の水硬性無機質製品の湿式抄造方法 (11)天然または/および人造繊維状無機物の直径が
3〜15μm、長さが0.1〜10mmである特許請求
の範囲第7ないし第10項記載の水硬性無機質製品の湿
式抄造方法 (12)パルプのカナディアンフリーネスが30〜75
0mlである特許請求の範囲第7ないし第11項記載の
水硬性無機質製品の湿式抄造方法[Scope of Claims] (1) Bentonite is 2 to 2% of the solid content of papermaking slurry
10% by weight (hereinafter, weight% based on the solid content of papermaking slurry unless otherwise specified), pulp 1 to 8%, reinforcing fiber 0
.. 5-5%, 0 natural and/or man-made fibrous minerals
.. Claim 1: Hydraulic inorganic paper product consisting of 5 to 10% coagulant, 50 to 500 ppm (to hydraulic inorganic material), and the remainder mainly consisting of hydraulic inorganic material (2) The swelling degree of bentonite is 2 to 10. Hydraulic inorganic paper product (3) according to the patent claim, wherein the reinforcing fiber has a fineness of 0.1 to 20 denier, an aspect ratio of 200 to 900, a tensile strength of 5 g/denier or more, and a Young's modulus of 90 g/denier or more. Hydraulic inorganic paper product according to claims 1 to 2 (4) The hydraulic inorganic paper product according to claims 1 to 3, wherein the reinforcing fibers are polyvinyl alcohol-based and polyacrylonitrile-based fibers ( 5) Hydraulic inorganic paper products according to claims 1 to 4, wherein the natural and/or artificial fibrous inorganic material has a diameter of 3 to 15 μm (in yen terms) and a length of 0.1 to 10 mm ( 6) Canadian freeness of pipe is 30-750
ml. Hydraulic inorganic paper product (7) according to claims 1 to 5, by adding 2 to 10% bentonite to a 1 to 8% pulp aqueous dispersion, or adding 2 to 10% bentonite to a bentonite dispersion. 0.5 to 5% to the aqueous dispersion that is stirred and dispersed by adding pulp.
reinforcing fibers, natural and/or artificial fibrous inorganic substances 0
.. 5 to 10% of the paper-making slurry, which is obtained by adding the remainder mainly of hydraulic inorganic materials to a dispersion liquid that has been stirred and dispersed.
A wet paper-making method for hydraulic inorganic products, characterized in that paper-making is carried out while adding a coagulant of ~500 ppm (to hydraulic inorganic substances) (8) The degree of swelling of bentonite is 2 to 10.Claim 7 Wet papermaking method for hydraulic inorganic products as described (9) The reinforcing fiber has a fineness of 0.1 to 20 denier, an aspect ratio of 200 to 900, a tensile strength of 5 g/denier or more, and a Young's modulus of 90 g/denier or more. Wet paper-making method for hydraulic inorganic products according to claims 7 to 8 (10) Water according to claims 7 to 9, wherein the reinforcing fibers are polyvinyl alcohol-based and polyacrylonitrile-based fibers Wet papermaking method for hard inorganic products (11) Hydraulic inorganic material according to claims 7 to 10, wherein the natural and/or artificial fibrous inorganic material has a diameter of 3 to 15 μm and a length of 0.1 to 10 mm. Product wet papermaking method (12) Canadian freeness of pulp is 30-75
0ml wet papermaking method for hydraulic inorganic products according to claims 7 to 11.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59126186A JPH0717427B2 (en) | 1984-06-18 | 1984-06-18 | Hydraulic inorganic papermaking product and method for producing the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59126186A JPH0717427B2 (en) | 1984-06-18 | 1984-06-18 | Hydraulic inorganic papermaking product and method for producing the same |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS616167A true JPS616167A (en) | 1986-01-11 |
JPH0717427B2 JPH0717427B2 (en) | 1995-03-01 |
Family
ID=14928818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59126186A Expired - Lifetime JPH0717427B2 (en) | 1984-06-18 | 1984-06-18 | Hydraulic inorganic papermaking product and method for producing the same |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0717427B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01201054A (en) * | 1988-02-04 | 1989-08-14 | Masahiro Kobayashi | Production of unsintered ceramics |
JP2021096935A (en) * | 2019-12-16 | 2021-06-24 | 三菱製紙株式会社 | Thermal runaway suppression fireproof sheet |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50147545A (en) * | 1974-05-17 | 1975-11-26 | ||
JPS5140034A (en) * | 1974-09-30 | 1976-04-03 | Sharp Kk | |
JPS5162811A (en) * | 1974-11-29 | 1976-05-31 | Asahi Chemical Ind | Banjofukugotaino seizoho |
JPS54136708A (en) * | 1978-04-17 | 1979-10-24 | Toa Gurauto Kougiyou Kk | Ground stabilizer containing opening used paper material |
JPS54139633A (en) * | 1978-04-21 | 1979-10-30 | Matsushita Electric Works Ltd | Production of inorganic lighttweight hardened body |
JPS5562833A (en) * | 1978-11-01 | 1980-05-12 | Kubota Ltd | Manufacture of cement board |
JPS55100256A (en) * | 1979-01-22 | 1980-07-31 | Nihon Valqua Kogyo Kk | Production of fiber reinforced cement plate |
JPS55118810A (en) * | 1979-03-06 | 1980-09-12 | Kubota Ltd | Preparation of cement group board material |
JPS58116120A (en) * | 1981-12-29 | 1983-07-11 | 松下電工株式会社 | Manufacture of board for inorganic building |
JPS5973463A (en) * | 1982-10-15 | 1984-04-25 | 松下電工株式会社 | Inorgnic hardened body |
-
1984
- 1984-06-18 JP JP59126186A patent/JPH0717427B2/en not_active Expired - Lifetime
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50147545A (en) * | 1974-05-17 | 1975-11-26 | ||
JPS5140034A (en) * | 1974-09-30 | 1976-04-03 | Sharp Kk | |
JPS5162811A (en) * | 1974-11-29 | 1976-05-31 | Asahi Chemical Ind | Banjofukugotaino seizoho |
JPS54136708A (en) * | 1978-04-17 | 1979-10-24 | Toa Gurauto Kougiyou Kk | Ground stabilizer containing opening used paper material |
JPS54139633A (en) * | 1978-04-21 | 1979-10-30 | Matsushita Electric Works Ltd | Production of inorganic lighttweight hardened body |
JPS5562833A (en) * | 1978-11-01 | 1980-05-12 | Kubota Ltd | Manufacture of cement board |
JPS55100256A (en) * | 1979-01-22 | 1980-07-31 | Nihon Valqua Kogyo Kk | Production of fiber reinforced cement plate |
JPS55118810A (en) * | 1979-03-06 | 1980-09-12 | Kubota Ltd | Preparation of cement group board material |
JPS58116120A (en) * | 1981-12-29 | 1983-07-11 | 松下電工株式会社 | Manufacture of board for inorganic building |
JPS5973463A (en) * | 1982-10-15 | 1984-04-25 | 松下電工株式会社 | Inorgnic hardened body |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01201054A (en) * | 1988-02-04 | 1989-08-14 | Masahiro Kobayashi | Production of unsintered ceramics |
JP2021096935A (en) * | 2019-12-16 | 2021-06-24 | 三菱製紙株式会社 | Thermal runaway suppression fireproof sheet |
Also Published As
Publication number | Publication date |
---|---|
JPH0717427B2 (en) | 1995-03-01 |
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