巻号一覧
11 巻, 12 号
選択された号の論文の13件中1～13を表示しています
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向山 定孝1955 年 11 巻 12 号 p. 772-781
発行日: 1955/12/10
公開日: 2008/11/28
ジャーナル フリーPDF形式でダウンロード (1554K) -
第IV報 種々なるpH緩衝溶液中心における反復伸長-回復の機械的挙動岡島 三郎, 池田 佐喜男, 岡本 洋三1955 年 11 巻 12 号 p. 782-787
発行日: 1955/12/10
公開日: 2008/11/28
ジャーナル フリーThe mechanical behaviour of an Angora rabbit hair in the acidic buffer solutions was studied by means of the methods described in the preceding paper and the following facts are observed:
(1) When a stretching and recovery is repeated after a relaxation for 5min. after each cyclic operation, the 30% stretching work decreases with the number of the cycles.
(2) This decrement is slightest at the isoelectric point, 4.5 and it appears to increase as the medium becomes more acidic or more alkaline, but the magnitude of the work itself decreases at the same time, and consequently the decrement is also slight and the work becomes nearly constant after 2 or 3 cycles at pH 1.1 and 1.9.
(3) The 30% stretching work in the air decreases most significantly.
(4) The work of recovery is nearly constant and does not change by the cycling. Its value is also maximum at the isoelectric point, and minimum in the air.
(5) The hysteresis is largest in the air and decreases remarkably after the first stretching. In the water it is also a function of pH and the relation is similar to that of the stretching work.
(6) The resilience, the ratio of the work of recovery to that of stretching, is on the contrary, larger at the lower pH value and is at minimum in the air.
(7) The work of stretching which is decreased by 3 or more cyclic operations, as described above, partly recovers when the hair is relaxed in the water for 24hrs. The effect is most significant in the case of the hair which has been stretched in the air.
(8) The work at 50°C is less than that at 30°C. This temperature effect grows larger as pH of the medium approaches the isoelectric point of the hair.
These phenomena are explained from the view point of the folding and unfolding of the keratin molecules.抄録全体を表示PDF形式でダウンロード (500K) -
第9報 顕微鏡観察及び染色性より見た絹フィブロインの微細構造中西 正喜1955 年 11 巻 12 号 p. 788-793
発行日: 1955/12/10
公開日: 2008/11/28
ジャーナル フリーExamination of the mechanism of dissolution of silk fibroin in dilute alkali and dilute acid solution has shown the following:
(1) In the structural unit of silk fibroin, namely brin, there are a micell unit, composed of subcrystalline and crystalline regions, and a fibril unit of micell unit.
(2) The fibrillae run parallel to fibre-axis, and are crowded in the interior, but at places are in disorder.
Amorphous regions II exists chiefly among the fibrillae and the surface of brin is chiefly covered with amorphous region I.抄録全体を表示PDF形式でダウンロード (2039K) -
第20報 ポリアクリルエトリルのジメチルホルムアミド濃厚溶液の構造粘性,曳糸性及び紡糸性について片山 将道, 坂場 謙二1955 年 11 巻 12 号 p. 793-795
発行日: 1955/12/10
公開日: 2008/11/28
ジャーナル フリーThe relationship between structural viscosity and spinability of the di-methyl formamide concentrated solution (6_??_19%) of polyacrylonitrile (_??_=550, 1400, 3250) was examined and the following results were obtained.
(1) The solution shows the structural viscosity and it resembles the P. V. A-H2O solution.
(2) Spinability by the prolong of solution is an indication for the good spinning.抄録全体を表示PDF形式でダウンロード (261K) -
1955 年 11 巻 12 号 p. 795
発行日: 1955年
公開日: 2008/11/28
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第3報 仕上布に現われた織疵について内田 豊作, 渡辺 幸広, 三原 正義1955 年 11 巻 12 号 p. 796-801
発行日: 1955/12/10
公開日: 2008/11/28
ジャーナル フリーIn this report (III), we studied the defects appeared on the finished goods. The observation of defects is made by naked eyes. S. U. M. P. method, and microscopical sectional view as in report (II). The results may be summerized as follows.
(1) The defects take place more easily in finished goods than in grey fabrics.
(2) The stripes due to tension differences in winding and warping become visible. The clearness of the stripes is caused by the uneven adsorption of dyestoff.
(3) The clearer appearance of the defects in case of the finished fabrics compared to the grey clothes may be caused by the notable recovery of elongation of the yarns through the wet finishing processes.
(4) Few wefts unwound from the tip of a spool, inserted stripewisely by shuttle box motion between the wefts unwound from the root part of the spool, produces a weft stripe on the finished cloth. But the defect is not detectable in the case of the grey cloth.抄録全体を表示PDF形式でダウンロード (4452K) -
第4報 アクリレートモノマーによる影響について 第5報 樹脂処理織物の脆化と抵抗性との関係桑原 昂1955 年 11 巻 12 号 p. 802-808
発行日: 1955/12/10
公開日: 2008/11/28
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第2報 布のリング孔引抜き抵抗と圧縮性との関係内田 豊作, 滝沢 通, 小林 満1955 年 11 巻 12 号 p. 808-812
発行日: 1955/12/10
公開日: 2008/11/28
ジャーナル フリーWithdrawal resistance, in the range where the value of fullness ρ exceeds 1, may well be assumed that it is the sum of the following two components;
a, Withdrawal resistance generated at the point where the fullness of the hole is equal to 1. (F1)
b, Resistance caused by the additional side force acts on the test piece to compress it and make it possible to pass through the hole. (Fc)
On the above assumption, and by applying the well known relation between the thickness of fabrics and the measuring pressure, t=a+b/(p+c), the authors derived a theoretical expression to give the withdrawal resistance in the range where the fullness of the hole exceeds 1, as a function of the fullness ρ, coeficient of friction between the fabric and the ring-hole surface, comperssibility of the fabric, dimentional values of the ring-hole, etc. But the expression was too complex and inpractical to their purpose, so we boldly abbreviation it into the form: where Fc: withdrawal resistance caused by the compression of the specimen in a. range of ρ exceeds one Aθ: inner surface area of the ring-hole μ: coeficient of friction R: radius of the narrowest part of the hole r: radius of the curvature of the inner surface of the ring n: R/r tθcalculated thickness of the test piece under zero pressure K2′, l, m, a, b, c: constants, their value vepends upon the character of the respective test piece.
This simplified expression has shown the results that practically coincided with the experimental results obtained from their various kinds of fabrics.抄録全体を表示PDF形式でダウンロード (281K) -
熨斗 秀夫1955 年 11 巻 12 号 p. 812-816
発行日: 1955/12/10
公開日: 2008/11/28
ジャーナル フリーThis paper treats: 1) The crease resistance of the fabric woven with amilan and viscose rayon, 2) Its changeability due to the stripe direction. The results are as follows; 1) The crease resistance reaches its maximum value until the ratio of the viscose rayon in the fabric amounts to 25%, but decrease after that limit. 2) In order to evaluate the crease resistance of a fabric, measurements should be taken in all directions, as the resistance shows marked large defference in each direction.抄録全体を表示PDF形式でダウンロード (341K) -
第1報 チロシンの樹脂化について 第2報 チロシン樹脂の性質北条 舒正, 井本 正夫, 平林 秀人1955 年 11 巻 12 号 p. 816-822
発行日: 1955/12/10
公開日: 2008/11/28
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第1報 セルロイド用硝化綿の粘度とその皮膜の機械的性質に及ぼす硝化温度並びに硝化時間の影響 第2報 セルロイド用硝化綿の透明性(溷濁度)並に収率に及ぼす硝化時間及び硝化温度の影響松田 義朗1955 年 11 巻 12 号 p. 822-829
発行日: 1955/12/10
公開日: 2008/11/28
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渡辺 嘉津夫1955 年 11 巻 12 号 p. 830-836
発行日: 1955/12/10
公開日: 2008/11/28
ジャーナル フリーPDF形式でダウンロード (1500K) -
松田 秀一1955 年 11 巻 12 号 p. 837-843
発行日: 1955/12/10
公開日: 2008/11/28
ジャーナル フリーPDF形式でダウンロード (493K)
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