巻号一覧
12 巻, 4 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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友成 九十九1956 年 12 巻 4 号 p. 241-244
発行日: 1956/04/10
公開日: 2008/11/28
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第6報 ノナール化とアセタリールモノサルファイドによるアセタール化及びベンザール化との混合アセタール化について森 昇, 桜井 潔, 田中 毅, 中村 尚史1956 年 12 巻 4 号 p. 245-248
発行日: 1956/04/10
公開日: 2008/11/28
ジャーナル フリーVinylon fibers having good elastic recovery and better resistance to heat in dry and wet conditions can he obtained by the acetalization with acetalyl-mono-sulfide before or after nonalization.
It is observed in the mixed acetalization with nonylaldehyde and acetalyl-mono-sulfide and also nonyl-and benzaldehyde that effects of such acetalization on the properties of fibers depend upon the conditions of reaction抄録全体を表示PDF形式でダウンロード (271K) -
第VI報 捲縮の消失点について 第VII報 不均-断面繊維の歪-応力挙動に関する-寄与岡島 三郎, 池田 佐喜男1956 年 12 巻 4 号 p. 249-257
発行日: 1956/04/10
公開日: 2008/11/28
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第1報 熱処理PVA繊維の各種高級アルデヒドによるアセタール化田辺 健一, 大野 康次1956 年 12 巻 4 号 p. 258-264
発行日: 1956/04/10
公開日: 2008/11/28
ジャーナル フリーIn order to improve the resilience of vinylon by means of introducing bulky side chains, heat-treated polyvinyl alcohol fibers are acetalized with several higher aldehydes, i.e. butyr-, iso-valeric, heptyl, lauryl, benz-and I-naphthoic aldehyde, and their properties particularly tensile recovery are examined. Their dry and wet heat resistances are somewhat inferior, their dry tenacities and elongations are approximately equal, and their wet tenacities are fairly superior to those of formalized fibers respectively, with the exception of fibers acetalized to higher degrees of acetalization with higher aldehydes. Their Young's moduli are greater and their initial elastic loads and elongations are higher than those of formalized fibers respectively, and these tendencies are particularly remarkable at benzalized fibers. The higher the aldehyde used and the greater the degree of acetalization, the higher the tensile recovery in the range of relatively low extension and inversely the lower in the range of higher extension. By benzalization the best recovery and the tensile recovery vs. extension curve similar to acetate rayon are obtained. These relationships between tensile recovery and extension seem to be explained in terms of steric hindrance due to side chains introduced to amorphous portions of the fiber. The dyeability of fibers acetalized with these higher aldehydes is very poor as compared with that of formalized fiber.抄録全体を表示PDF形式でダウンロード (544K) -
第6報 未晒紙料の本多式漂白度測定法 第7報 和紙抄造用未晒紙料,特に三椏,楮,桑皮,台湾楮,孟宗竹未晒紙料の漂白度本多 真一, 岡部 政人1956 年 12 巻 4 号 p. 265-275
発行日: 1956/04/10
公開日: 2008/11/28
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第4報 工業的浸漬工程におけるパルプシートの浮上り井内 亮, 尾鷲 寿郎, 宮本 晃1956 年 12 巻 4 号 p. 276-279
発行日: 1956/04/10
公開日: 2008/11/28
ジャーナル フリーFlotation phenomenon of pulp sheets in commercial press steeping was investigated, and following results were obtained.
1. When pulp sheets of commercial size are steeped as sheet bundles, they contain more air per unit mass than that contained by separatedly steeped sheets. This additional air was calculated at about 1/10-1/5 of total air.
2. The degree of flotation increases with increased sheet size and with increased number of sheets per bundle. These data indicate the difficulty of penetration of steeping lye to the centre of larger sheet bundle.
3. The degree of flotation in commercial press steeping tends to decrease with increasing apparent density of pulp sheet, in general.
4. The degree of flotation is minimized at a proper lye filling speed in commercial press steeping.抄録全体を表示PDF形式でダウンロード (273K) -
第2報 Crabbing用水のpHとセット効果岡島 三郎, 井上 哲男1956 年 12 巻 4 号 p. 280-287
発行日: 1956/04/10
公開日: 2008/11/28
ジャーナル フリーThe effect of pH of the water upon the crabbing of woolen fabric was investigated. Woolen fabrics were immersed in the water of pH of 7-10.5 for 1 hr at 50°C, which were pressed under the pressures of 0.5-4 kg/cm2 at 100°C for 5-20 min. immediately after being taken out of the water. The pressing was given to a sheet or a pile of 6 fabrics.
The lustre, Lr of these fabrics decreases, in general, to Lr′ when they are released for 10 or 20 min. in the steam of 100°C. This decrease of lustre is less the more effectively the fabric is set at the crabbing. So L′r/Lr was measured as an appraisal of the effectiveness of the crabbing and the following results were obtained.
(1) The crabbing is most effective when pH of the water is 9.2, when Lr and L′r/Lr are largest.
(2) At pH higher than 8, H2S smelled during the pressing and the samples coloured yellowish slightly, It is interesting to note this correspondency of the evolution of H2S and the effect of the crabbing from the standpoint of the mechanism of the chemical setting.抄録全体を表示PDF形式でダウンロード (1195K) -
第4報 引抜き法による各種布のハンドリング評価及び他の測定法との比較内田 豊作, 滝沢 通, 小林 満1956 年 12 巻 4 号 p. 288-293
発行日: 1956/04/10
公開日: 2008/11/28
ジャーナル フリーVarious fabrics collected in the market and a series of spun rayon fabrics treated by various concentration of a resin solution were ranked by our Withdrawal method. These results were discussed in comparison with the results obtained from Subjective rating, Flexural Rigidity, Drape coefficient and other methods.
It was recognized that the values of Withdrawal resistance of various fabrics are (i) highly correlated to the value of their respective Flexural Rigidity and also their Drape coefficient, (ii) they give a faithful ranking to the assumed resin contents, in the case of a series of resin finished spun rayon fabrics, and (iii) they also give the same ranking of handling as that obtained by human hands of twenty experts.
In this method the measuring procedure is very simple and it gives always the same value if measured under the same conditions, and also it gives mechanical and objective results, so the authers recommend that it may be used as a practical method of measuring fabric hand.抄録全体を表示PDF形式でダウンロード (402K) -
内木 光1956 年 12 巻 4 号 p. 294-300
発行日: 1956/04/10
公開日: 2008/11/28
ジャーナル フリーPDF形式でダウンロード (384K)
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