巻号一覧
11 巻, 7 号
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友成 九十九1955 年 11 巻 7 号 p. 364-367
発行日: 1955/07/10
公開日: 2008/11/28
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軒原 栄三1955 年 11 巻 7 号 p. 367-368
発行日: 1955/07/10
公開日: 2008/11/28
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第17報 純PVC繊維の横断面形状について井本 立也, 犬伏 清治1955 年 11 巻 7 号 p. 369-375
発行日: 1955/07/10
公開日: 2008/11/28
ジャーナル フリーVarious cross-sectional shapes of pure PVC-fibers spun from 4 sorts of solvent-coagulating agentsystems under several conditions, were observed. Thus, 4 series of shapes obtained from tetrahydrofuran-water, nitrobenzene-methanol, mesityloxide-methanol and (carbon disulphide)-methanol systems were uncertain-elliptical-dumb-bell, flat dumb-bell, uncertain-circular-elliptical and uncertaincircular types respectively, with their coagulation degree. Also, these shapes differed from each other according to the winding velocity and/or bath temperature.
These varieties of cross-sectional shapes could be accounted for with some data derived from model-like experiments such as coagulation on deckglass of microscope and osmosis between solvent and coagulating agent.抄録全体を表示PDF形式でダウンロード (1897K) -
第18報 純PVC繊維の熱収縮について (その1)井本 立也1955 年 11 巻 7 号 p. 375-379,369
発行日: 1955/07/10
公開日: 2008/11/28
ジャーナル フリーVelocities of shrinkage and creep of pure PVC-fibers, spun from tetrahydrofuran solution and drawn to some ratios, were measured in hot air suspending various loads. As the fiber shrinks when load is light and lengthens by heavy load, the load with which the fiber neither shrinks nor lengthens may be considered as “SHRINKING FORCE” of the fiber (cf. K. Fuchino et al, this journal, 7, 9 (1951)): but this conception is not applicable to this PVC-fiber, since there are some dependency to time in its strain change. Since the shrinkage takes place earlier than the creep there occurs maximum shrinking point in these processes, because the retardation period for shrinkage may be shorter than the one for creep. At higher temperature the velocity to arrive at the max. pt. grows fast. The fiber drawn to larger ratio has larger activation energy and shrinks more in total result than the less drawn one, because the former is harder to creep by its crystallinity.抄録全体を表示PDF形式でダウンロード (457K) -
第19報 純PVC繊維の熱分解について井本 立也1955 年 11 巻 7 号 p. 379-384,369
発行日: 1955/07/10
公開日: 2008/11/28
ジャーナル フリーFollowing points where confirmed at the thermal dehydrochlorination of pure PVC-fiber spun from tetrahydrofuran (THF) solution in N2 stream. (1) Almost 1% of THF has remained for long period in the fiber. (2) On thermal decomposition of the fiber HCl is liberated, and also probably tetramethylene chlorohydrin. (3) Decomposition rates of the fibers drawn to twice and 4 times lengths are about 88 and 73%, respectively, to the one of undrawn fiber. (4) Likewise, the decomposition of the fiber drawn to higher ratio showed higher activation energy.抄録全体を表示PDF形式でダウンロード (595K) -
根岸 道治, 関口 一郎, 森 昇, 岡田 定行1955 年 11 巻 7 号 p. 384-388
発行日: 1955/07/10
公開日: 2008/11/28
ジャーナル フリーEasily dyeable fibers can be obtained from a solution of a mixture of polyvinyl alcohol and polyvinyl cyanoethylether whose degree of cyanoethylation is lower than 25 mol percents. The mechanical properties of these fibers are similar to the ordinary vinylon.抄録全体を表示PDF形式でダウンロード (352K) -
第5報 NH3ベースSP法による掬材の蒸解について荻原 允隆1955 年 11 巻 7 号 p. 388-397
発行日: 1955/07/10
公開日: 2008/11/28
ジャーナル フリーTo investigate the manufacture of the pulp from beech by NH3 base SP process, a number of phenomena of cookings and qualities of unbleached pulps are compared with those of Na and Ca base processes. The results are as follows:
1. The cooking velocity by Na base is the largest of the three, and that by NH3 base is only slightly larger than that by Ca base, when in each case the cooking liquor has the same composition; comb. acid 1.0% and total acid 4.8%. This relation is contrary to that found between NH3 and Na base in neutral and bisulfite (pH=2.8) medium cookings. (Japanese report, Fig. 1, 2)
2. The cooking velocities by the liquor of NH3 base having comb. acid 0.5% and Na base having comb. acid 1.0% are nearly the same, and the qualities of the both pulps are almost the same. Here the resemblance between the easy soluble bases may be recognized. But the behavior of Ca base seems to differ essentially from that of NH3 and Na base; that is, the cooking velocity by the Ca base liquor of redused comb. acid increases to the same degree as that by NH3 base. But the properties of pulp by this process are inferior to those of NH3 base pulp in Sieber number (lignin), in ash content, uniformity and viscosity. Although the viscosity of the pulp is somewhat improved in this case, it is still lower than that of NH3 base pulp. In case of NH3 base process, to obtain the same Sieber number pulp as that by Ca base process at the same pulp yield, it is possible to use the liquor of less amount of comb. acid, and the cooking velocity larger than that by Ca base process, and the pulp higher in viscosity, lower in ash content, and more uniform. (J. r. Fig. 3, 6, 7, 8, 9)
3. The NH3 base pulp, washed with distillated water, gives only 1/3 amount of ash of Ca and Na base pulps, but when it is washed with water containing nonbolatile kations, the NH4+ ion contained in the pulp is quickly exchanged with them, so that the amount of ash increases nearly to the value of Ca and Na base pulps. (J. r. Fig. 8, Table 4)
4. It seems that, the amounts of pentosan, α-cellulose and benzene-alcohol extract of pulps are scarsely affected by the kind of base and the cooking conditions, but depend almost upon the pulpyields. (J. r. Fig. 5, 10)
5. In general, on the cooking of beech, characters of NH33 base process are remarkably superior to those of Ca base process, and are the same as those of Na base. When NH3 base is compared with Na base, the less mol of NH3 (still less in weight) than that of Na gives the same cooking results.抄録全体を表示PDF形式でダウンロード (708K) -
第5報 各種織物の糸密度変化による耐皺性及びその樹脂加工池田 佐喜男, 岡島 三郎1955 年 11 巻 7 号 p. 397-405
発行日: 1955/07/10
公開日: 2008/11/28
ジャーナル フリーThe fabrics of 8 structures, containing plain, twill, sateen and basket weaves, were made from the identical spun yarn, but varying the yarn density. Half of each sample fabric was treated with a urea-formaldehyde resin. The crease resistances of the samples, treated and untreated, were measured, as described in the preceding papers.
In general, the crease resistance decreased and approached to a constant value, but in some cases it increased through a minimum with the increase of the yarn density.
These results may be explained from a viewpoint that the yarns under stress displaced to the least strain and the freedom of the filaments and yarns in a fabric was dependent on the structure meaand the yarn density.
Among the samples, the crease resistances of the sateen and basket were excellent, but they could be improved slightly by the resin treatment, while the plain, which was improved remarkably, had a lower resistance before the treatment, compared with these of the 1/7-twill, sateen and basket.
Yarn density changes often during the treatment, so the evaluation of the eflect of the resin finish must be made with precaution.抄録全体を表示PDF形式でダウンロード (657K) -
第2報 羽二重の樹脂加工と耐皺性との関係桑原 昂1955 年 11 巻 7 号 p. 405-408
発行日: 1955/07/10
公開日: 2008/11/28
ジャーナル フリーStudies on the relation of effects of the resin finishing on the crease-resistance of Silk-Habutae, performed by using the 5-section synthetic resins (Gelatin-cont. sec, Polyvinyl Acetate, Polymethyl Acrylate, Polyvinyliden chloride, Poly methyl Acrylate-Vinyl Acetate Co-polymer, and Methyrol melamine)
(1) Methyrol melamine, Acrylate-Vinyl Acetate Co-polymer are more adhesive than other resins on 3rd section (1, 3 and 5%) at the resin adhesive volume.
(2) On the crease-resistance, Gelatin, Polyvinyl Acetate and Methyrol melamine are prefered to other resins in the reversible angle of crease. When they are of higher concentration and the time of creasing is short hours of holding crease. In the long creasing however Polyvinyliden chloride, Acrylate-Vinyl Acetate Co-polymer and Polymethyl Acrylate are prefered to the former 3-resins.抄録全体を表示PDF形式でダウンロード (282K) -
第6報 同色染について松田 義朗, 足立 毅1955 年 11 巻 7 号 p. 408-413
発行日: 1955/07/10
公開日: 2008/11/28
ジャーナル フリーIn accordance with the I. C. I. diagrams obtained from the previous five reports, 50-50% acetate and viscose blended fabrics were dyed solidly with acetate and direct cotton dyes by the so-called “one bath method.”
In this report, objects which corresponds to a combination of the x-y coordinates and brightness (Y) of the given dyed textile were set at first, then the blending ratio of the dyes were determined by means of the I. C. I. diagram (Ex. I), and fabrics were dyed. In most cases slight colour differences were observed between the object and the dyeings. So the blending ratio of the dyes was amended and fabrics were dyed again (Ex. II). Thus, trials were carried on until (Ex. III), and the result very close to the object was obtained. Six colours were tried in the same way, but this method may be utilized in the wider range of the diagram.抄録全体を表示PDF形式でダウンロード (389K) -
石川 欣造1955 年 11 巻 7 号 p. 414-418
発行日: 1955/07/10
公開日: 2008/11/28
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祖父江 寛, 田畑 米穂1955 年 11 巻 7 号 p. 418-424
発行日: 1955/07/10
公開日: 2008/11/28
ジャーナル フリーPDF形式でダウンロード (558K)
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