文献一覧: 繊維学会 (出版者)

1 0 0 0 OA 綿花

著者: 渡辺馨
出版者: 繊維学会
雑誌: 繊維学会誌 (ISSN:00379875)
巻号頁・発行日: vol.30, no.3, pp.P94-P98, 1974-03-10 (Released:2008-11-28)

2015-09-25 22:14:32
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1 0 0 0 OA キトサン膜の膜電位と塩透過

著者: 桜井謙資小林京子高橋利禎
出版者: 繊維学会
雑誌: 繊維学会誌 (ISSN:00379875)
巻号頁・発行日: vol.45, no.1, pp.22-26, 1989-01-10 (Released:2008-11-28)
参考文献数: 8
被引用文献数: 4

脱アセチル化度の異なるキトサン膜を酢酸水溶液からキャスト法で調製した。塩化カリウムに対する膜電位からTeorell-Meyer-Sievers理論によって求めた膜の有効固定電荷密度および水和度は,予想に反して脱アセチル化度の増加とともに減少した。この挙動は非晶部の体積分率の低下により解離可能なアミノ基の数が減るためと推測された。同じキトサン膜で4種の単純無機塩についての透過係数を測定した。低い塩濃度においては透過速度はDonnan効果によって制限され,塩濃度とともに増加するが,高濃度においてはイオンの水和半径のみに依存する一定値となり,水和半径が大きいほど拡散係数は小さくなった。微多孔膜の透過速度は緻密な膜よりも数倍大きいが,その塩濃度依存性は類似していた。

2015-08-03 00:48:10
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1 0 0 0 OA CF4プラズマ処理による絹フィプブロイン膜およびポリエチレンフイルムのフッ素化反応

著者: 西川昭文真柄宏之嶋崎暢子
出版者: 繊維学会
雑誌: 繊維学会誌 (ISSN:00379875)
巻号頁・発行日: vol.50, no.7, pp.274-281, 1994-07-10 (Released:2008-11-28)
参考文献数: 15
被引用文献数: 3 1

Silk fibroin membranes and polyethylene films have been fluorinated by CF4 (tetra-fluoromethane) lowtemperature plasma on conditions that CF4 gas flow rate was 30mL/min, treatment time was 2 minutes, and discharge power variation was 30_??_400W, followed by being immersed inpure water. Fluorine atom in their samples before and after extraction test, and fluoride ion in the extracted water were quantitatively analyzed. Surface component of their samples before and after extraction was also analyzed by XPS. As a result, fluorine containing groups being soluble in water were formed only by the fluorination of silk fibroin membranes. The effect of the surface structrure change of fluorinated silk fibroin membranes on the water swelling ability, the water contact angle and the dyeability were examined. As a result, the hydrophobicity and the water contact angle increased, and the water swelling ability decreased with increasing of the fluorine fixation content. After extraction, decreasing of the water contact angle was found, which suggested hydrolysis of fluoride acid end groups (-COF). Moreover, the primary amino group formation by the decomposition of peptide bonds was also suggested and it was supposed that this amino group caused the increase of the dyeability by acid colors.

2015-04-08 16:27:00
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1 0 0 0 OA Na-Cellulose IIおよびIIIの存在と原料セルロースの結晶構造との関連

著者: 林治助山田拓司渡辺貞良
出版者: 繊維学会
雑誌: 繊維学会誌 (ISSN:00379875)
巻号頁・発行日: vol.30, no.5-6, pp.T190-T198, 1974-05-10 (Released:2008-11-28)
参考文献数: 9
被引用文献数: 2 4

It was found that there was a difference between X-ray diffractograms of Na-Cellulose I derived from the cellulose I family (I and IIII) and that from the cellulose II family (II, IIIII and IVII), and we calssified them as Na-Cellulose II and Na-Cellulose III, respectively. Both Na-Cellulose II and III regenerated cellulose II by washing with cold water. When decomposed with hot water, however, Na-Cellulose II regenerated mixture of cellulose I and II, and Na-Cellulose III regenerated cellulose II. Namely, Na-Cellulose has memory of the crystalline structure of the original cellulose.As described in our previous paper, the chain conformation of cellulose is thought to be a difference between cellulose I and II families, the former has “bent” type and the latter has “bent and twisted” type comformation.The memory of the original structure may be due to the retaining of chain conformation during meroerization and regeneration. When Na-Cellulose II is decomposed by cold water, the chain conformation is changed from “bent” to more stable “bent and twisted” type owing to strong swelling and hydration, and cellulose II was regenerated.

2015-02-25 18:40:19
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1 0 0 0 OA アントラキノン系酸性染料とピラゾリン系蛍光増白剤の羊毛および絹布上での光退色相互作用

著者: 矢上一夫村上薫正泉寺秀人山田仁穂
出版者: 繊維学会
雑誌: 繊維学会誌 (ISSN:00379875)
巻号頁・発行日: vol.47, no.9, pp.487-491, 1991-09-10 (Released:2008-11-28)
参考文献数: 9

Acid dyes of anthraquinone type, C. I. Acid Green 25, Acid Green 27 and Acid Blue 40, on wool and silk were irradiated to investigate the interaction with a fluorescent agent of pyrazoline type, C. I. FBA 54 (FWG), using a low pressure mercury lamp, a high pressure mercury lamp and a xenon lamp equipped with a Pyrex filter. The dyed fabrics showed a decrease and then an increase in reflectances at the initial stage of the reaction followed by a monotonous decay in color. The fading of the dyes were depressed by FWG. The fluorescence of FWG increased at the initial stage of the reaction and then decreased. The degradation of FWG was depressed in the presence of dyes.