JPH11247088A - Vulcanized fiber and its production - Google Patents
Vulcanized fiber and its productionInfo
- Publication number
- JPH11247088A JPH11247088A JP6193598A JP6193598A JPH11247088A JP H11247088 A JPH11247088 A JP H11247088A JP 6193598 A JP6193598 A JP 6193598A JP 6193598 A JP6193598 A JP 6193598A JP H11247088 A JPH11247088 A JP H11247088A
- Authority
- JP
- Japan
- Prior art keywords
- vulcanized
- methylmorpholine
- oxide
- vulcanized fiber
- fiber
- 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
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、新規なバルカナイ
ズドファイバーの製造方法およびその製造方法により得
られたバルカナイズドファイバーに関するものである。
バルカナイズドファイバーは、再生天然繊維素からなる
強靭な有機工業材料であり、耐衝撃性、耐摩耗性等の機
械的強度に優れ、打抜き、折り曲げ、プレス成形等の加
工性が良好である。更に耐油性、電気絶縁性にも優れた
材料でもある。難燃性付与についても特公平３−４５１
６号公報に開示されており、難燃性材料としても供され
ている。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel vulcanized fiber production method and a vulcanized fiber obtained by the production method.
Vulcanized fiber is a tough organic industrial material made of recycled natural fiber, has excellent mechanical strength such as impact resistance and abrasion resistance, and has good workability such as punching, bending and press molding. It is also a material that is excellent in oil resistance and electrical insulation. Japanese Patent Publication 3-451
No. 6, disclosed as a flame-retardant material.
【０００２】[0002]
【従来の技術】吸水性及び化学的性質等を調整し抄紙さ
れたファイバー原紙を、濃塩化亜鉛水溶液中に浸し濃塩
化亜鉛水溶液の膨潤膠化作用を利用し、表面硬化処理、
又はそれらを複数枚合紙し熟成し、以降連続的に脱液・
プレス乾燥を行いバルカナイズドファイバーを得る。こ
のバルカナイズドファイバーは、前記の如く優れた機械
強度特性、電気絶縁特性等により、各種工業材料や電気
絶縁材料および難燃性材料等広い用途に利用されてい
る。2. Description of the Related Art A fiber base paper made by adjusting the water absorption and chemical properties is immersed in a concentrated zinc chloride aqueous solution, and a swelling and swelling action of the concentrated zinc chloride aqueous solution is used to perform a surface hardening treatment.
Or, ripen them by inserting multiple sheets of paper and then continuously draining
Press drying to obtain vulcanized fiber. This vulcanized fiber is used in various applications such as various industrial materials, electric insulating materials and flame-retardant materials due to its excellent mechanical strength characteristics and electric insulating characteristics as described above.
【０００３】更にバルカナイズドファイバーの主たる素
材が、天然セルロース繊維で構成されており、廃棄され
た場合の生分解性及びクリーンな焼却処理適性も有して
おり環境に優しい工業材料であるため、量産化および用
途拡大が強く望まれている。Further, the main material of vulcanized fiber is made of natural cellulose fiber, which has biodegradability when disposed of and suitability for clean incineration, and is an environmentally friendly industrial material. There is a strong demand for expanded uses.
【０００４】しかしながら、ファイバー原紙の膨潤膠化
に際し鋼材に対し強い腐食性を示す塩化亜鉛溶液を使用
しているために、塩化亜鉛溶液槽等の設備に高価な耐腐
食性材料を使用せざるを得ない。その結果、量産化を阻
害し、更には、用途拡大をも妨げる結果となっている。
したがって金属腐食性のない膨潤膠化処理によるバルカ
ナイズドファイバーの製造方法と該製造方法により得ら
れるバルカナイズドファイバーの出現が切望されてい
る。[0004] However, since a zinc chloride solution showing strong corrosiveness to steel is used when swelling and agglomerating the fiber base paper, expensive corrosion-resistant materials must be used for equipment such as a zinc chloride solution tank. I can't get it. As a result, mass production is hindered, and further, expansion of applications is hindered.
Therefore, there is an urgent need for a method for producing vulcanized fiber by swelling and agglomeration treatment without metal corrosion, and for the appearance of vulcanized fiber obtained by the production method.
【０００５】一方、第３級アミンオキシドのセルロース
溶解については、古くから研究されており、特にＮ−メ
チルモルフォリン−Ｎ−オキシドの特異的なセルロース
溶解特性については、公知であるが、紡糸技術面等での
利用が実現化されているにすぎない。[0005] On the other hand, the dissolution of tertiary amine oxide in cellulose has been studied for a long time. In particular, the specific cellulose dissolving characteristics of N-methylmorpholine-N-oxide are known, but the spinning technique is known. It has only been realized for use on the surface.
【０００６】[0006]
【発明が解決しようとする課題】本発明の目的は、金属
腐食性のない膨潤膠化処理によるバルカナイズドファイ
バーの製造方法と該製造方法により得られるバルカナイ
ズドファイバーを提供するものであり、特に鋼材腐食性
を示さないＮ−メチルモルフォリン−Ｎ−オキシドによ
る、新規なバルカナイズドファイバー及びその工業的製
造方法を提供することを目的とする。SUMMARY OF THE INVENTION An object of the present invention is to provide a method for producing vulcanized fiber by swelling and agglomeration treatment without metal corrosivity, and a vulcanized fiber obtained by the production method. It is an object of the present invention to provide a novel vulcanized fiber using N-methylmorpholine-N-oxide which does not show the above, and an industrial production method thereof.
【０００７】[0007]
【課題を解決するための手段】以上に鑑み、本発明者等
は、上記課題を、最も合理的かつ効果的に実現するため
鋭意研究を進めた結果、Ｎ−メチルモルフォリン−Ｎ−
オキシドと極性液体との混合溶液中に複数枚のファイバ
ー原紙を連続的に通過させ、引き上げて熟成工程を設け
る事により、合紙出来る事を見いだした。更に、以降脱
液・乾燥プレス工程処理により、バルカナイズドファイ
バーを連続的に製造できる事を見いだし本発明を成すに
至った。即ち、本発明はＮ−メチルモルフォリン−Ｎ−
オキシドと一連のバルカナイズドファイバー製造設備の
合理的組み合わせにより製造されるバルカナイズドファ
イバーと該バルカナイズドファイバーの製造方法を提供
するものである。本発明に係るバルカナイズドファイバ
ーは、ファイバー原紙をＮ−メチルモルフォリン−Ｎ−
オキシドにて膨潤膠化せしめことを特徴とするものであ
る。In view of the above, the present inventors have conducted intensive studies to achieve the above object most rationally and effectively. As a result, the present inventors have found that N-methylmorpholine-N-
It has been found that interleaving can be performed by continuously passing a plurality of fiber base papers through a mixed solution of an oxide and a polar liquid, pulling them up and providing an aging step. Further, it has been found that a vulcanized fiber can be continuously produced by a dewatering / drying press process, and the present invention has been accomplished. That is, the present invention relates to N-methylmorpholine-N-
An object of the present invention is to provide a vulcanized fiber produced by a rational combination of an oxide and a series of vulcanized fiber production equipment, and a method for producing the vulcanized fiber. The vulcanized fiber according to the present invention has a fiber base paper of N-methylmorpholine-N-.
It is characterized by swelling and swelling with oxide.
【０００８】[0008]
【発明実施の形態】以下、本発明を説明する。複数枚の
ファイバー原紙を膨潤膠化させ合紙させる為にＮ−メチ
ルモルフォリン−Ｎ−オキシドと極性液体との混合溶液
中に同時に連続的に通過させる。極性液体として、好ま
しくは水を使用するが、その他アルコール類等も使用出
来、混合液でも良い。極性液体の混合割合は、Ｎ−メチ
ルモルフォリン−Ｎ−オキシドと極性液体の混合溶液重
量に対し１０重量％から５０重量％の範囲である。極性
液体の混合割合が１０重量％未満であるとファイバー原
紙への浸透性が妨げられ均質な膨潤膠化が得られない。
また５０重量％を越えると、その後の熟成に長時間を要
することとなり生産低下をきたしコスト高となる。混合
溶液の温度は、通常７０℃以上１４０℃以下である。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below. A plurality of fiber base papers are simultaneously and continuously passed through a mixed solution of N-methylmorpholine-N-oxide and a polar liquid in order to swell and agglomerate the paper. Water is preferably used as the polar liquid, but other alcohols and the like can be used, and a mixed liquid may be used. The mixing ratio of the polar liquid ranges from 10% by weight to 50% by weight based on the weight of the mixed solution of N-methylmorpholine-N-oxide and the polar liquid. When the mixing ratio of the polar liquid is less than 10% by weight, the permeability to the fiber base paper is hindered, and uniform swelling and gelling cannot be obtained.
On the other hand, if it exceeds 50% by weight, a long time is required for the subsequent ripening, which leads to a decrease in production and an increase in cost. The temperature of the mixed solution is usually from 70 ° C to 140 ° C.
【０００９】Ｎ−メチルモルフォリン−Ｎ−オキシドを
含む混合溶液中を通過させた複数枚のファイバー原紙を
加熱ローラーに密着させながら大気中に引き上げ、熟成
する。この場合の加熱温度は１５０℃を越えないように
する。１５０℃を越えた場合、爆発の危険性が指摘され
ている。好ましくは、７０℃から１４０℃である。A plurality of fiber base papers passed through a mixed solution containing N-methylmorpholine-N-oxide are pulled up into the atmosphere while being in close contact with a heating roller, and are aged. The heating temperature in this case should not exceed 150 ° C. If the temperature exceeds 150 ° C., a danger of explosion is pointed out. Preferably, it is from 70 ° C to 140 ° C.
【００１０】熟成工程で１枚に合紙されたファイバー原
紙にテンションをかけた状態で極性液体中に導き、Ｎ−
メチルモルフォリン−Ｎ−オキシド混合液を脱液する。In the aging step, the fiber base paper interleaved into one sheet is guided into a polar liquid while being tensioned.
The methylmorpholine-N-oxide mixture is drained.
【００１１】脱液終了後プレス乾燥を行いバルカナイズ
ドファイバーを得る。乾燥温度としては、通常８０℃以
上１８０℃以下である。After the completion of the liquid removal, press drying is performed to obtain vulcanized fibers. The drying temperature is usually from 80 ° C to 180 ° C.
【００１２】[0012]
【実施例】次に本発明を実施例に基づき説明するが、本
発明は、これらの実施例に限定されるものではない。 実施例１ 膨潤膠化用溶液として、Ｎ−メチルモルフォリン−Ｎ−
オキシドを８０重量％、水が２０重量％の溶液を調整し
温度を８５℃に加温、保持しファイバー原紙４枚を浸
し、積層し引き上げ、プレス加圧後再度、該溶液中に浸
し熟成した。熟成後、テンションを保ちながら５℃の水
中に浸し脱液をおこない、表面温度１１０℃のシリンダ
ードライヤーで乾燥し、バルカナイズドファイバーを得
た。得られたバルカナイズドファイバーの、厚さ及び引
張り強さの測定結果を表１に併せて示す。Next, the present invention will be described based on examples, but the present invention is not limited to these examples. Example 1 N-methylmorpholine-N-
A solution containing 80% by weight of oxide and 20% by weight of water was prepared, heated and maintained at a temperature of 85 ° C., and four fiber base papers were immersed, laminated and pulled up, pressed and pressed again, and immersed in the solution for aging. . After ripening, it was immersed in water at 5 ° C while maintaining the tension to remove liquid, and dried with a cylinder dryer having a surface temperature of 110 ° C to obtain vulcanized fibers. Table 1 also shows the measurement results of the thickness and tensile strength of the obtained vulcanized fiber.
【００１３】実施例２ ファイバー原紙を３枚とした以外は、実施例１と同様に
し、バルカナイズドファイバーを得た。得られたバルカ
ナイズドファイバーの、厚さ及び引張り強さの測定結果
を表１に併せて示す。Example 2 Vulcanized fiber was obtained in the same manner as in Example 1 except that the number of fiber base papers was three. Table 1 also shows the measurement results of the thickness and tensile strength of the obtained vulcanized fiber.
【００１４】実施例３ 膨潤膠化用溶液として、Ｎ−メチルモルフォリン−Ｎ−
オキシドを５０重量％、水が５０重量％の溶液を調整し
温度を７０℃に加温、保持しファイバー原紙４枚を浸
し、積層し引き上げ、プレス加圧後表面温度を１１０℃
に保持したホットプレート上で熟成した。熟成後、テン
ションを保ちながら５℃の水中に浸し脱液を行い、表面
温度１１０℃のシリンダードライヤーで乾燥し、バルカ
ナイズドファイバーを得た。得られたバルカナイズドフ
ァイバーの、厚さ及び引張り強さの測定結果を表１に併
せて示す。Example 3 N-methylmorpholine-N-
A solution containing 50% by weight of oxide and 50% by weight of water was prepared, heated and maintained at a temperature of 70 ° C., immersed in four fiber base papers, laminated and pulled up, and after pressing, the surface temperature was increased to 110 ° C.
Aged on a hot plate held in After ripening, it was immersed in water at 5 ° C. while maintaining the tension to remove liquid, and dried with a cylinder dryer having a surface temperature of 110 ° C. to obtain vulcanized fibers. Table 1 also shows the measurement results of the thickness and tensile strength of the obtained vulcanized fiber.
【００１５】実施例４ 膨潤膠化用溶液として、Ｎ−メチルモルフォリン−Ｎ−
オキシドを９０重量％、水が１０重量％の溶液を調整し
温度を１４０℃に加温・保持しファイバー原紙４枚を浸
し、積層し引き上げ、プレス加圧後再度、該溶液中に浸
し熟成した。以降、実施例１と同様に処理を行いバルカ
ナイズドファイバーを得た。得られたバルカナイズドフ
ァイバーの、厚さ及び引張り強さの測定結果を表１に併
せて示す。Example 4 N-methylmorpholine-N-
A solution containing 90% by weight of oxide and 10% by weight of water was prepared, heated and maintained at a temperature of 140 ° C., and four fiber base papers were immersed, laminated and pulled up, pressed and pressed again, and then immersed in the solution and aged. . Thereafter, the same treatment as in Example 1 was performed to obtain a vulcanized fiber. Table 1 also shows the measurement results of the thickness and tensile strength of the obtained vulcanized fiber.
【００１６】[0016]
【表１】 [Table 1]
【００１７】表１の結果でわかるように、新規な製法に
よるバルカナイズドファイバーは、従来の塩化亜鉛を使
用して得たバルカナイズドファイバーの特性を満足して
いる事を示している。As can be seen from the results in Table 1, the vulcanized fiber obtained by the novel production method satisfies the characteristics of the vulcanized fiber obtained by using the conventional zinc chloride.
【００１８】[0018]
【発明の効果】本発明は上記の説明からわかるように、
ファイバー原紙をＮ−メチルモルフォリン−Ｎ−オキシ
ドにて膨潤膠化せしめるとともに、バルカナイズドファ
イバーの製造方法において、膨潤膠化剤としてＮ−メチ
ルモルフォリン−Ｎ−オキシドを使用したので、従来の
ように膨潤膠化剤として塩化亜鉛を使用したものに比
べ、金属腐食性を考慮した処理槽を含む耐食性のバルカ
ナイズドファイバー製造設備を用意する必要が一切な
く、設備に高価な耐腐食性材料を使用しないで済むこと
となり、量産化が図られ、更には、用途範囲の拡大にも
つながり、得られた製品も従来のものと遜色のないもの
が得られる。According to the present invention, as can be understood from the above description,
The fiber base paper is swelled and agglomerated with N-methylmorpholine-N-oxide, and N-methylmorpholine-N-oxide is used as a swelling and swelling agent in the process for producing vulcanized fiber. Compared to those using zinc chloride as a swelling agent, there is no need to prepare corrosion-resistant vulcanized fiber production equipment including a treatment tank that takes into account metal corrosion, and use no expensive corrosion-resistant materials in the equipment. As a result, mass production can be achieved, and the range of application can be expanded, and the obtained product can be obtained as good as the conventional product.
Claims (2)
ン−Ｎ−オキシドにて膨潤膠化せしめたことを特徴とす
るバルカナイズドファイバー。1. A vulcanized fiber characterized by swelling and agglomerating fiber base paper with N-methylmorpholine-N-oxide.
モルフォリン−Ｎ−オキシドと極性液体の混合溶液中を
連続的に通過させ圧着工程・熟成工程・乾燥工程を経て
合紙するバルカナイズドファイバーの連続的製造方法。2. A vulcanized fiber, in which a plurality of fiber base papers are continuously passed through a mixed solution of N-methylmorpholine-N-oxide and a polar liquid, and subjected to a press-bonding step, an aging step, and a drying step to interleaf. Continuous manufacturing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06193598A JP4070866B2 (en) | 1998-02-27 | 1998-02-27 | Vulcanized fiber and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06193598A JP4070866B2 (en) | 1998-02-27 | 1998-02-27 | Vulcanized fiber and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11247088A true JPH11247088A (en) | 1999-09-14 |
| JP4070866B2 JP4070866B2 (en) | 2008-04-02 |
Family
ID=13185547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06193598A Expired - Fee Related JP4070866B2 (en) | 1998-02-27 | 1998-02-27 | Vulcanized fiber and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4070866B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010089013A (en) * | 2008-10-08 | 2010-04-22 | Nagaoka Univ Of Technology | Fiber sheet having liquid-liquid separation function |
-
1998
- 1998-02-27 JP JP06193598A patent/JP4070866B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010089013A (en) * | 2008-10-08 | 2010-04-22 | Nagaoka Univ Of Technology | Fiber sheet having liquid-liquid separation function |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4070866B2 (en) | 2008-04-02 |
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