巻号一覧
20 巻, 1 号
選択された号の論文の7件中1～7を表示しています
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第3報 正則斜文について呉 祐吉, 松橋 房江, 篠原 昭1964 年 20 巻 1 号 p. 7-14
発行日: 1964/01/10
公開日: 2008/11/28
ジャーナル フリー1. General properties of twill: We denote the warp and weft of regular twill as j and i respectively, and assume that weft yarn is picked in the order of 1, 2, …i. i+1……. If any design point (i.j) is transformed to (R+1-i, j), the resulting weave is of mirror image of initial weave, but the transformation (i. j)→(i, R+1-j) turns over only its twill line. Let these transformations denote as p1 and p2 respectively. By a transformations p1 p2, point (i. j) moves to (j. i), and so the points (i.i) on the diagonal line move toward themselves and are kept constant through this operation, while the other points move to the symmetric points against the diagonal line. This operation is equivalent to the one of 180° turning of initial weave, and both are practically the same.
Example, 180° turn of to (see Fig. 3)
2) Number of regular twill: Number of R-harness regular twill (TR) is described theoretically as follows: is sum of such divisor d as the value of R/2d is of odd. Among the double face twills, there are several weaves whose mirror image is identical with the 180° turned weave, such a twill is called double face twill of the 2nd kind. The condition of these weaves is:
the case of, suffix is minimum value of j in the following relation mod n is used. Example:
So the number of double face twills TRD may be discribed as follow:
_??_ is the sum of arithmetic function relating to all common divisors of is value of TRX, when R=R/d, n=n/d•d is common divisor of (R. n) • n is number of interlacing points. TR calculated in the case of R=2_??_16 are shown in Table 3.
3. Number of double faces twill: The twill satisfying the following relation in routine expression of twill weave, is called double face twill of the lst kind.
The number of such twills (RRD)I is:
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(2)熱処理P. E. T.繊維の光粘弾性挙動の温度依存性白樫 侃, 栗山 将, 石川 欣造1964 年 20 巻 1 号 p. 15-22
発行日: 1964/01/10
公開日: 2008/11/28
ジャーナル フリーThe apparatus employed to measure the temperature dependence of the birefringence on synthetic fiber was improved. The temperature dependence of the birefringence and static tension on P. E. T. filament, drawn and heated at a constant length, varying draw ratio and heating condition, were measured over a wide range of temperature under a constant heating and cooling rates.
The optical-stress coefficient (Δn/f) for successive heating and cooling at the various temperature was investigated. The results are shown as follows:
1) The temperature dependence of the optical-stress coefficient on the un-treated P. E. T. filaments is that Δn/f decreases rapidly up to the transition temperature, independent of draw ratio, and begins to increase near the region, whereas beyond this region, it increases linearly with the increase of temperature. The rate of the increase for a lower stretched filament is larger than for a higher one. The value of Δn/f at various extensions on un-treated P. E. T. filament increases with rising temperature and changes in the vicinity of transformation temperature on the statictension (f) vs. temperature curve of P. E. T. filament. This transformation temperature may be moved towards higher temperature with the increase of extension.
2) Relation of the temperature dependence on the optical-stress coefficient at a constant length for dry-heated P. E. T. filament is quite similiar to the behavior on the un-treated filament. The curvature of the (Δn/f) vs. (T) curves near the transformation temperature becomes larger and shifts towards higher temperature with rise of temperature by heating. And, the transformation temperature of (Δn/f) vs. (T) curves for higher stretched filament is always higher than for lower one.
3) The rate of decrease of Δn/f within the lower temperature in Δn/f_??_T curves of P. E. T. filaments, which were heated in various media of heating, decrease and the transformation temperatures shift towards higher temperature in the order of heat treatment by dry air, steam and hot water.
4) The temperature dependence of the heated P. E. T. filament on the birefringence (Δn) at a constant length is that Δn exhibits a minimum value near transformation temperature, and beyond its temperature, Δn increases with rising temperature. Its rate of increase is smaller for the temperature raised by heating, but the value of Δn in the (Δn) vs. (T) relation of the heated filament at the most elevated temperature (210°C) becomes lower within the higher temperature than its value at just before thr rise of temperature. The variation of Δn in (Δn)_??_(T) curves of the dry-heated higher stretched P. E. T. filament is smaller as compared with that of the lower stretched.抄録全体を表示PDF形式でダウンロード (604K) -
祖父江 寛, 斎藤 吉民1964 年 20 巻 1 号 p. 23-27
発行日: 1964/01/10
公開日: 2008/11/28
ジャーナル フリーReactivity of cyanuric chloride with various alkali celluloses was investigated. The result is as follows: The reactivity of cyanuric chloride with alkali cellulose in alkaline medium may be influenced by the quantity of combined alkali and water in alkali cellulose as well as by absorbed alkali and water to alkali cellulose, In our experiment, the reactivity of alkali cellulose increased in the following; Na-Cell IV<Na-Cell II and 9% NaOH treated cellulose<Na-Cell I<Na-Cell V. Na-Cell III, however, did not react with cyanuric chloride under the similar condition.抄録全体を表示PDF形式でダウンロード (333K) -
第4報 製織の中断条件がたて糸の挙動に及ぼす影響について古里 孝吉, 大沢 直志1964 年 20 巻 1 号 p. 28-33
発行日: 1964/01/10
公開日: 2008/11/28
ジャーナル フリーIn the previous report, it was stated that when yarn is given repeated extension during weaving, a certain residual elongation occurs in proportion to the extension, the tension at closed shed, the so-called base-tension etc.
When the weaving is interrupted, the conditions under which the yarn is placed exert influence upon the quality of the yarn and the mode of the occurence of the residual elongation after the resumption of weaving.
The present report deals with the change in the tension of yarn under the following four different conditions.
After a constant repeated extension is given to the yarn.
(1) The repetition is interrupted and yarn is relaxed under tensionless condition and the weaving is resumed giving a certain base-tension.
(2) The repetition is interupted and the yarn length is kept in the position as it is and the weaving is resumed after a certain time.
(3) During the interruption the yarn is relaxed under tensionless condition, and the weaving is, resumed when the yarn in forcibly pulled to its original length.
(4) During the interruption a constant basetension is applied. An apparatus to measure the tension of warp was devised and result obtained in each case are as follows: It may be observed that the third case, which was expected to be the most suitable conditions, needs much higher tension than the first when weaving was resumed. And, gives in the second case, when a constant repeated extension gives on the warp and its length is kept in the position as it is, the tension may be found to increase slowly.抄録全体を表示PDF形式でダウンロード (415K) -
森山 有恒1964 年 20 巻 1 号 p. 34-38
発行日: 1964/01/10
公開日: 2008/11/28
ジャーナル フリーAn example of the measuring values of the speed of currents related the curved currents along the arc surface of the mote knife and the over-runned currents under the mote knife for the undersheet, are shown. As a result of the experimeutal conditions, the following were observed.
1. Vt, the tangential velocity of the curved currents along the arc surface of the mote knife, is calculated from the following experimental formula; where h is mean distance from arc surface of mote knife, ΔH function of distance from gauge point of mote knife, α2, β3 coefficient and exponent concerning circular velocity of taker-in cylinder or distance from gauge point of mote knife, and VSOH component of velocity in direction of back surface of mote knife on line between centrifugal currents and currents along back surface of moteknife, at distance (h+ΔH) from back surface.
2. θt, an angle with a tangent to the arc surface of the mote knife, is calculated from the following experimental formula; where α4 is mean coefficient, β5 exponent and E function concerning distance L from gauge point of mote knife.
3. Vh, the component of velocity in the direction of the horizontal line concerning the overrunned currents under the mote knife for the undersheet, is calculated from the above mentioned experimental formula (I) by replacing Vt with Vn.
4. θh, an angle with horizontal of the over-runned current under the mote knife, is calculated from the above mentioned experimental formula (II) by replacing θt with θh.抄録全体を表示PDF形式でダウンロード (383K) -
第1報 染料,糊料と移行性 第2報 Nafka Crystal Gumの染料移行におよぼす影響古下 昭雄, 垣下 智成1964 年 20 巻 1 号 p. 39-51
発行日: 1964/01/10
公開日: 2008/11/28
ジャーナル フリーPDF形式でダウンロード (1135K) -
第1報 分散染色フィルムの可視部吸収スベクトルについて黒岩 茂隆, 堀口 明子, 小宮山 博子1964 年 20 巻 1 号 p. 52-56
発行日: 1964/01/10
公開日: 2008/11/28
ジャーナル フリーIn the present work the films of various high polymers were dyed by dispersed Cibacet Violet 2 R with phenol or trichlorbenzene as carrier, and visible light absorption was measured for the substrates and for the dye baths. The obtained absorption spectra were examined in detail for comparison with each other to get the information concerning the state of the dyestuff dispersed in media. The experimental results suggested the following:
(1) The dyestuff, diffusing to interior of substrates, is in the state of molecular dispersion, and that located near the outer surface of some films is in the state of aggregation likewise in dye bath.
(2) In the latter case, if carrier, having larger swelling ability, e. g. phenol, is used in dyeing, dyestuff diffuses molecularly inward from the surface.
(3) When non-ionic surfactant is added in dye bath as dispersing agent, it provides the corresponding absorption spectrum to molecular dispersion of dye. It is likely that dyestuff solubilizes into the hydrophilic part of micelle of non-ionic surfactant.抄録全体を表示PDF形式でダウンロード (373K)
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