巻号一覧
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48 巻, 12 号
選択された号の論文の14件中1～14を表示しています
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紙パルプ技術協会1994 年 48 巻 12 号 p. 1529-1544
発行日: 1994/12/01
公開日: 2009/11/19
ジャーナル フリーThe working group called “What we should do for future Japan TAPPI ?” started its work on August, 1993 and presented its report to the Japan TAPPI board meeting on September 19, 1994. The proposal was approved there and it will be a guideline for future activity.抄録全体を表示PDF形式でダウンロード (1420K) -
紙パルプ技術協会1994 年 48 巻 12 号 p. 1545-1563
発行日: 1994/12/01
公開日: 2009/11/19
ジャーナル フリーPDF形式でダウンロード (1836K) -
高橋 確1994 年 48 巻 12 号 p. 1564-1575
発行日: 1994/12/01
公開日: 2009/11/19
ジャーナル フリーThe energy consumption and energy saving of the pulp and paper industry in 1993 are reviewed.抄録全体を表示PDF形式でダウンロード (1019K) -
イェルグ フィッシャ, アルブレヒト マイネッケ1994 年 48 巻 12 号 p. 1576-1579
発行日: 1994/12/01
公開日: 2009/11/19
ジャーナル フリーThe equipment which produces three-ply woodfree paper can be installed nowadays by using the established technical methods. This concept is significant only when the printability of outer plies is better than that of inner ply and the cost of material for inner ply is obviously cheaper than that for outer plies.抄録全体を表示PDF形式でダウンロード (530K) -
三宅 亮1994 年 48 巻 12 号 p. 1580-1588
発行日: 1994/12/01
公開日: 2009/11/19
ジャーナル フリーWe started the preparation for obtaining ISO 9002 Resistration by Kanzaki Mill in December 1992 and succeeded it in June 1994.
Following are our experiences to be successful in obtaining ISO 9002 Resistration.抄録全体を表示PDF形式でダウンロード (1118K) -
ダウンサイジング本間 忠一1994 年 48 巻 12 号 p. 1589-1596
発行日: 1994/12/01
公開日: 2009/11/19
ジャーナル フリー最近コンピュータ技術の向上により, 超小型コンピュータ (パソコン等) の機能向上と価格低下が著しく, 生産管理などのEPDの世界では大型コンピュータから超小型コンピュータへの移行 (ダウンサイジング) が盛んに行われてきている。その結果ハードウェアコストの低下, ワープロやデータベースなどの汎用ソフトウェアの利用によるソフトウェアコストの低下が促進され, その結果としてコンピュータ利用の範囲が拡大されるとともに, 利用者の拡大にもつながり, コンピュータによる事務の合理化が大幅に促進されてきた。一方紙パ業界の計装を考えると, アナログ計装から, DDC, DCSへとコンピュータを利用した計装が盛んに行われてきて, それなりの合理化が達成されたが, 最近のコンピュータの技術向上を考えると, 計装の世界にも超小型コンピュータによる低コスト計装がクローズアップされて来た。
本誌では超小型コンピュータによる「ダウンサイジングの動向」について眺めてみよう。抄録全体を表示PDF形式でダウンロード (1057K) -
池沢 秀男, 三好 智次, 渡辺 忍1994 年 48 巻 12 号 p. 1597-1602
発行日: 1994/12/01
公開日: 2009/11/19
ジャーナル フリーNew Oji Paper Co., Ltd. has developed a new spunlace nonwoven “TEXCELL”. TEXCELL is made from pulp and synthetic filaments by the hydroentanglement technique. The major characteristics of TEXCELL are softness, low density and high strength. It maintains high tensile strength even in wet condition. TEXCELL can hold large amounts of oil and water and absorption speeds of oil and water by TEXCELL are extremely fast. The degree of the entanglement of pulp and filaments is highly related to the energy of columnar streams of water, applied to pulp and filaments. If the applied energy is too low, the entanglement of pulp and filaments is not strong enough to use as a product. On the contrary, if the energy is too high, sheet formation becomes unacceptable. It is important to choose a suitable energy range for both the entanglement and the sheet formation in order to obtain high quality sheet.抄録全体を表示PDF形式でダウンロード (733K) -
環境技術委員会1994 年 48 巻 12 号 p. 1603-1606
発行日: 1994/12/01
公開日: 2009/11/19
ジャーナル フリーPDF形式でダウンロード (11934K) -
1994 年 48 巻 12 号 p. 1607-1612
発行日: 1994/12/01
公開日: 2009/11/19
ジャーナル フリーPDF形式でダウンロード (12996K) -
山田 卓良1994 年 48 巻 12 号 p. 1613
発行日: 1994/12/01
公開日: 2009/11/19
ジャーナル フリーPDF形式でダウンロード (176K) -
熱分解GCによる有機アニオントラッシュ成分の分析小野 裕司, 宮西 孝則1994 年 48 巻 12 号 p. 1614-1620
発行日: 1994/12/01
公開日: 2009/11/19
ジャーナル フリーAs for the technology of producing groundwood-containing papers under alkaline conditions, the main attention now as in the past is focused on interfering substances from groundwood pulp. The terminology “acid to alkaline” itself indicates that chemistry is a primary issue. In general, due to the accumulation tendency of organic anionic trash toward pH increase in the papermaking system, these substances have more detrimental effects on runnability and paper property at alkaline than acid pH.
A knowledge of organic anionic trash in paper and papermaking system is of great interest for the paper industry. But current techniques for the determination of fatty and resin acids in pulp and paper matrices are time-consuming and not so precise as are expected. So, in this experiment, we determined the amount of organic anionic trash in paper by pyrolysis-gas chromatography (Py-GC).
Following experimental results were obtained ;
(1) Organic anionic trash from bleached groundwood pulp was detected mainly as methyl oleate and methyl dehydroabietate by Py-GC at the pyrolysis temperature of 450°C by the use of tetramethylammonium hydroxide as a methylating reagent,
(2) Organic anionic trash retained in paper was determined from the peak intensity of methyl dehydroabietate in the pyrogram.
(3) Since the main components of the resin acids in bleached groundwood pulp are different from those of rosin sizes added at wet end, the amounts of both resin acids from the two origins could be simultaneously determined by Py-GC.抄録全体を表示PDF形式でダウンロード (741K) -
柴崎 秀樹, 空閑 重則, 尾鍋 史彦1994 年 48 巻 12 号 p. 1621-1630
発行日: 1994/12/01
公開日: 2009/11/19
ジャーナル フリーHandsheets containing hardwood kraft pulp (LBKP) and either bacterial or algal cellulose were prepared, and their mechanical and optical properties were studied in terms of their reinforcing effects on fiber network in sheet. Bacterial and algal celluloses were disintegrated to form a fine fiber suspension, and were added to paper stock in place of LBKP with 0-100%. The reinforcing effect of bacterial cellulose in LBKP sheet resulted in increases of physical properties such as Young's modulus, tensile strength, folding endurance and dimensional stability, although opacity decreased with bacterial cellulose content in handsheet. Handsheets containing algal cellulose had almost no improvement in tensile strength and folding endurance, although they showed improved dimensional stability and high Young's modulus. The difference in physical behavior between bacterial and algal celluloses, in spite of similar structure of fine fibrils, can be explained by the morphological difference between them. The microfibrils of algal cellulose seemed stiff and straight, while those of bacterial cellulose showed flexible, twisting ribbon-like form. Therefore, bacterial cellulose microfibrils are more likely to entangle with LBKP fibers than those of algal cellulose in handsheets, and thus they may contribute to improvements in the mechanical properties.抄録全体を表示PDF形式でダウンロード (4928K) -
アカマツ材抽出物による脱樹脂阿部 善作1994 年 48 巻 12 号 p. 1631-1637
発行日: 1994/12/01
公開日: 2009/11/19
ジャーナル フリーIn order to obtain a better understanding of deresinating compounds in Akamatsu (Pinus densiflora) pine wood extractives during kraft pulping, the effects of additives on the deresination of Sugi (Cryptomeria japonica) and Sudajii (Castanopsis cuspidata) wood chips during pulping and washing were investigated. The chemical additives used were as follows : methanol extractives of Akamatsu pine wood, four kind of surfactants (oleic acid, abietic acid, sodium laurylbenzenesulfonate, and polyoxyethylene (20) sorbitan monooleate) as reference compounds.
The solubilization of lipophilic dye (p-dimethyl-aminoazobenzene) by these chemical additives was also examined and the amount of dye solubilized was measured.
Concerning the deresinating compounds in pine wood extractives, the following results were obtained :
(1) There are some deresinating compounds in the methanol extractives of Akamatsu pine wood.
(2) The effectiveness of abietic acid for deresination during pulping was very low.
(3) The ethyl acetate-soluble materials of the methanol extractives of Akamatsu wood were separated into six fractions (fr.1-fr.6). Fraction 5 is neutrals and soluble in 4% NaOH aqueous solution at hexane/4% NaOH extraction. The deresination effectiveness of fr.5 was the highest in the additives studied here.
(4) In the dye solubilization examination, oleic acid was most effective at a solubilization temperature below 80°C.
(5) At 90°C, the amount of dye solubilized by Fraction 5 exceeded that of oleic acid.
(6) Some effective deresinating compounds may exist in Fraction 5 of the methanol extractives from Akamatsu pine wood.抄録全体を表示PDF形式でダウンロード (805K) -
山本 卓也, 内村 典秋1994 年 48 巻 12 号 p. 1638-1643
発行日: 1994/12/01
公開日: 2009/11/19
ジャーナル フリーPDF形式でダウンロード (1114K)
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