巻号一覧
13 巻, 9 号
選択された号の論文の12件中1～12を表示しています
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祖父江 寛1957 年 13 巻 9 号 p. 573
発行日: 1957/09/10
公開日: 2008/11/28
ジャーナル フリーPDF形式でダウンロード (92K) -
第2報 Differential dyeing methodによる成熟度の測定方法について大野 泰雄1957 年 13 巻 9 号 p. 574-579
発行日: 1957/09/10
公開日: 2008/11/28
ジャーナル フリーThe observation of maturing process and the measuring of maturity, of lint during the growing process of cotton fiber were carried out by differential dyeing method and the method is discussed from various points of view with aproposal for measuring method of maturity. The cotton variety used for this research was “Rikuchimen Kan-no No.I, ” a sort of upland cotton.
Relation between the maturity by differential dyeing method and that by microscope method, (percentage maturity) and then the advantage and disadvantage of both methods are discussed.抄録全体を表示PDF形式でダウンロード (540K) -
第5報 ノニルアルデハイドによるアセタール化中村 尚史1957 年 13 巻 9 号 p. 580-582
発行日: 1957/09/10
公開日: 2008/11/28
ジャーナル フリーThe acetalization of polyvinyl alcohol with nonyl aldehyde has been undertaken. Polyvinyl alcohol can be easily acetalized to maximum 86.5mol%, in homogeneous phase in benzene solution.
It is found that highly acetalized one is soluble in CCl4 and trichlor ethylene, with softening temperature of 30_??_40°C抄録全体を表示PDF形式でダウンロード (218K) -
第2報 各種凝固浴の比較田辺 隆志, 長尾 英夫, 岡村 勲1957 年 13 巻 9 号 p. 583-590
発行日: 1957/09/10
公開日: 2008/11/28
ジャーナル フリーアクリルニトリル系重合体のジメチルホルムアミド溶液から,繊維を形成する代表的な凝固浴と,炭酸カリ水溶液について紡糸試験を行い紡糸状態の観察から,凝固体の均質なものを得べき凝固浴条件を見出すことが重要であることを認めた。かかる意味から,炭酸カリ浴も紡糸浴として使用できる可能性は大きい。抄録全体を表示PDF形式でダウンロード (516K) -
第1報 微細構造の影響(1)中尾 統一, 黒沢 易彦, 右田 伸彦1957 年 13 巻 9 号 p. 591-596
発行日: 1957/09/10
公開日: 2008/11/28
ジャーナル フリーIn order to investigate the influence of fine structure on the alkali solubility curve of pulp, the hydrolized residues (crystalline region and crystalline region containning mesomorphous region) were prepared from linter pulp, rayon wood pulp and bleached sulfite paper pulp, by dilute acid hydrolysis for 30 minutes and 3 hours respectively, and their alkali solubilities were determined.
The degraded cellulose samples were prepared from linter pulp and rayon pulp by irradiation of ultra violet rays, and their alkali solubilities were also determined.
From the results obtained the influence of fine structure and degree of polymerization of pulp on the alkali solubility curve of pulp are discussed.抄録全体を表示PDF形式でダウンロード (455K) -
第2報 徴細構造の影響(2)中尾 統一, 宮尾 再青, 右田 伸彦1957 年 13 巻 9 号 p. 596-600,591
発行日: 1957/09/10
公開日: 2008/11/28
ジャーナル フリーIn the previous paper the influence of fine structure of cellulose on the alkali solubility curve of pulp were reported. In the present paper linter pulp and rayon wood pulp were nitrated with two kinds of acid mixtures and then denitrated so that the degree of polymerization of cellulose falls little, and the alkali solubilities and distributions of lateral order were determined on the samples thus obtained.
From the results obtained further discussions are made on the influence of fine structure of the alkali solubility curve of pulp.抄録全体を表示PDF形式でダウンロード (394K) -
第1報 ナイロンの応力緩和松本 巌, 石川 欣造1957 年 13 巻 9 号 p. 601-606
発行日: 1957/09/10
公開日: 2008/11/28
ジャーナル フリーStress relaxation behavior of nylon (6 nylon) stretched under various degrees of elongation was measured in order to know the influence of the relative humidity and temperature. The data on relaxation were obtained under R. H. 8%, 33%, 55%, 75%, and in water at 25°C. The influence of the change of temperature at 25°C, 40°C, and 55°C under R. H. 55% and in water was further studied,
The values of E (stress/strain) obtained under various degrees of elongation, temperature, and R. H. were plotted for log t (see) and are shown in Fig. 2_??_Fig. 6, Fig. 8 and Fig. 9. It was found that the relaxation curve for nylon under various conditions could be approximated by the following.
where t is time, and E0, t0 is constant.
The results obtained are as follows.
1) Under the small elongation (2%), stress-relaxation behavior of nylon is much affected by R. H, and temperature.
2) In the low R. H., the high rate of stress relaxation is obtained under the 2% and 4% elongation.
3) In the high R. H. (including the tests in water) and under larger elongation, there is a small difference among the rates of stress relaxation.抄録全体を表示PDF形式でダウンロード (443K) -
第1報 スライバ状集合体の撚り構造とその剛性率木下 茂武1957 年 13 巻 9 号 p. 607-612
発行日: 1957/09/10
公開日: 2008/11/28
ジャーナル フリーThe purpose of this research is to estimate the influence of elementary fibre properties on _??_ torsional elastic behaviour of sliver-like fibre system for the analysis of spinning mechanisms and for the prediction of yarn quality.
In this paper, using the principle of double elasticity theory which was previously discussed by the author, the shear modulus G of sliver-like fibre bundle (length L, radius R, sectional area A and density _??_) is derived as a function of fibre dimensions (length l, diameter b, density ρ and direction to sliver axis θ) and fibre properties (shear rigidity μf. Young's modulus εf, Poisson's ratio σ and coefficient of friction f), that is
Then, by the application of same method to torsional displacement of fibre in a bundle which are twisted by _??_ per unit length, the effects of amount of _??_ on structure factors L, R and _??_ of system are determined theoretically by the following:
where, E is Young's modulus, Σ is Poisson's ratio of untwisted sliver:
And S is applied tensile stress of sliver. If sliver is twisted with constant length, it may be put:S=1/2ER2_??_2.抄録全体を表示PDF形式でダウンロード (414K) -
第10報 抄繊糸の検撚法について山田 都一1957 年 13 巻 9 号 p. 613-617
発行日: 1957/09/10
公開日: 2008/11/28
ジャーナル フリーIn the normal method (the untwisted method) the highly trained skill is required and yet exact results can hardly be expected in measuring twists of the yarn which is twisted by the heavier traveller, after about 50% moisture has been given to and permeated through the cut-material in an air-tight container for a few days, as in Report III.
In the present experiment is has been examined whether the simple methods, known as the twist measuring methods of spun yarn, had some utilities or not, when they were applied to the paper yarn.
And it has been made clear that the breaking method with 10cm between two clips is found fearable.
N1: Times of twists until a test piece is strained to be broken, after the piece, festened between two clips (the distance is L) has been twisted in the same direction as that of the test piece.
N2: Times of twists until a new piece is strained to be broken, the piece been twisted in the opposite direction, untwisted thoroughly and kept twisting on. and times of twists of yarn: N=(N2-N1)/2抄録全体を表示PDF形式でダウンロード (344K) -
第11報 原紙の厚さが糸の性質および樹脂加工効果におよぼす影響について山田 都一1957 年 13 巻 9 号 p. 617-622,613
発行日: 1957/09/10
公開日: 2008/11/28
ジャーナル フリーIn the paper manufacturing, the qualities, thickness, and width of cut of the papers from which the yarn is made, have been determined from the manufacturers' experiences.
In the present experiment the following two problems had been examined by the use of two kinds of paper of different thickness (102.09 and 122.51g/m2)
(1) Relation between the number of twists and the properties of yarns of 12_??_9 and 7′S
(2) Relation between thickness of the papers and effects obtained by the treatment of acid colloidal resin.
And the following results have been obtained.
(i) Strength and strength per unit area of two kinds of raw paper were Pa, pa; Pb, pb. Pa=pa×A, Pb=pb×B
However the sectional area A=B and pa=pb Therefore Pa=Pb
And when these two kinds of raw paper are twisted respectively, strength of the thinner raw paper is stronger, because of its higher adhesiveness.
(ii) No significant difference is observed in the effect of resin treatment.抄録全体を表示PDF形式でダウンロード (434K) -
田辺 健一, 松林 寛治1957 年 13 巻 9 号 p. 623-628
発行日: 1957/09/10
公開日: 2008/11/28
ジャーナル フリーIt is found that polyvinyl alcohol is changed into colored high molecular compounds keeping fiber form by acetalizing heat-treated fiber with some hydroxy-aromatic aldehydes and subsequently by coupling with diazonium compounds. In order to obtain the colored fiber resistant to boiling water, formalizing or benzalizing is generally necessary in addition to the acetalizing with hydroxyaromatic aldehyde. Though in hydroxy-aromatic aldehyde having electro-negative group, e. g. nitro-, carboxyl-, or bromo-group, directly attatched to the aromatic ring, the acetalization proceeds more easily than in hydroxy-aromatic aldehyde having no electro-negative group, in the color-developing due to coupling with diazonium compounds the fiber acetalized with the latter is better, even if the degree of acetalization is considerably lower. Particularly even the fiber acetalized with hydroxvnaphthaldehyde or resolcylaldehyde to several tenth mole per cent is developed in heavier shades. By changing the hydroxy-aromatic aldehyde and particularly aromatic amine, red, orange. yellow, brown, purple, and black shades are obtained, but blue and green are not.抄録全体を表示PDF形式でダウンロード (442K) -
上平 恒1957 年 13 巻 9 号 p. 629-634
発行日: 1957/09/10
公開日: 2008/11/28
ジャーナル フリーPDF形式でダウンロード (483K)
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