巻号一覧
前身誌
14 巻, 10 号
選択された号の論文の9件中1～9を表示しています
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森本 博1960 年 14 巻 10 号 p. 644-648,682a
発行日: 1960/10/10
公開日: 2009/11/17
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飯塚 広1960 年 14 巻 10 号 p. 649-653
発行日: 1960/10/10
公開日: 2009/11/17
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山口 徳一郎1960 年 14 巻 10 号 p. 654-659,682
発行日: 1960/10/10
公開日: 2010/02/10
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椿 啓介1960 年 14 巻 10 号 p. 660-664,690
発行日: 1960/10/10
公開日: 2010/02/10
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(第4報) 高分子電解質としての粘度的性質小島 義一, 中井 章能, 舘 勇1960 年 14 巻 10 号 p. 665-668
発行日: 1960/10/10
公開日: 2009/11/17
ジャーナル フリーViscosity determinations have been made of the aqueous solutions of fractionated sodium ligninsulphonates with molecular weights over a wide range. The data have been computed by application of the Fuoss' equation.
The results have been led to the conclusions that ligninsulphonates are flexible polyelectrolytes, andthat the molecules of higher molecular weight fractions are snore branched than those of lower fractions.It may be said that the mutual action among the electric charges on the molecular chain in water is connected with the distribution of ionizable groups on the chain and, consequently, the degree of chainbranching.抄録全体を表示PDF形式でダウンロード (836K) -
主として微細繊維について伊藤 喜員1960 年 14 巻 10 号 p. 669-674
発行日: 1960/10/10
公開日: 2009/11/17
ジャーナル フリーDissolving grade sulfite pulps made from hardwood (Quercus, Shiia, Litsea, distributed in Kyushu districts) were xanthated or acetylated. Fines (O-fibers) were the most important factors influencing upon the filterability. From the behavior of the esterification, fines are thought to be classified as follows :
A. extractive-rich parenchymatous cells
Almost all the fines of hardwood pulp belong to this category. These cells had influence upon the filterability of viscose, and refining of pulp by surfactant improved the filterability. In acetylation, extractives did not inhibit the reaction, and these cells gave good filterability. In swelling of the fines by phosphoric acid, the membranes of the fines which had not been extracted by surfactant were partly left undissolved along the lumen-side. But after the fines had been treated by surfactant, the membranes were dissolved very well.
Filterability of viscose made frome Litsea wood (containing oil cells) were very poor because of extractives, but filterability of acetate were not so poor.
B. crystal-bearing parenchymatous cells
Although the content of these cells were very little, these cells showed very poor filterability. By Bauer cleaner, these cells were removed.
As stated above, impurities (extractives or crystals) in cell membranes give poor filterability. Long fiber fraction shows good filterability.抄録全体を表示PDF形式でダウンロード (984K) -
藤波 宣陽, 岡村 武文, 平野 睦夫1960 年 14 巻 10 号 p. 675-682
発行日: 1960/10/10
公開日: 2009/11/17
ジャーナル フリーAccording to the method proposed by P. Lagally and H. Lagally, 2) we prepared sodium-aluminate experimentally ard manufactured the neutral sized kraft paper using it as a substitute of aluminiumsulfate.To neatralize sodium-aluminate we used sulfuric acid.
The results were :
(1) The lursting strength of these papers increased in 8%, tensile strength 2∼3%, and stretch 4∼8 %, wAile the tear factor decreased 2.5% as compared with that of usual acid paper precipitated with aluminium-sulfate.
(2) h was the sizing process that sodium-aluminate solution and size liqour were added simultaneously to the pulp suspension.
(3) We assumed that this process could be applicable on a commercial scale in the case of manufacturing the neutral sized paper and increasing strength properties of the paper.抄録全体を表示PDF形式でダウンロード (1438K) -
那須野 精一, 朝井 勇宣1960 年 14 巻 10 号 p. 683-690
発行日: 1960/10/10
公開日: 2010/02/10
ジャーナル フリーThe fungus damage which has been a problem on a corrugated board carton for export canned foods was inyestigated and the following results were obtained.
(1) Twelve strains of molds were isolated and identified as shown in Table 1.
(2) It was suggested that contaminated molds had to germinate and grow independently on both inside and outside of carton while the cartons were transporting by boat.
(3) Outgrowth of molds was ascertained not to be induced by the process of corrugated board carton production.
(4) Distribution of molds spore in a corrugated board producing factory was investigated and contamination of molds on corrugated board was verified to be more dominant out of the factory.
(5) Adhesive paste for making corrugated board was not enough as nutrient of mold outgrowth.
(6) Some species of Penicillium, Aspergillus and Trichoderma amongst isolated molds grew in broad range of temperature and humidity on liner and medium of corrugated board.
(7) Outgrowth of molds was more remarkable on liner than medium and this fact supported our suggestion about process of mold outgrowth on corrugated board during transportation.抄録全体を表示PDF形式でダウンロード (1504K) -
仙田 雄蔵1960 年 14 巻 10 号 p. 691-701
発行日: 1960/10/10
公開日: 2009/11/17
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