繊維学会誌
Online ISSN : 1884-2259
Print ISSN : 0037-9875
検索
詳細検索
OR
閲覧
検索
58 巻, 3 号
選択された号の論文の11件中1～11を表示しています
すべての抄録を表示する
    • |<
    • <
    • 1
    • >
    • >|
時評
解説
連載　博物館めぐり
一般報文
  • 織物の力学的特性がMITドレープ挙動に与える影響
    藐 力民, 高寺 政行, 澤田 宏一, 桜井 正幸, 中沢 賢, 篠原 昭
    原稿種別: 研究論文
    専門分野: 情報学
    2002 年 58 巻 3 号 p. 77-83
    発行日: 2002年
    公開日: 2002/10/15
    DOIhttps://doi.org/10.2115/fiber.58.77
    ジャーナル フリー
    抄録を表示する抄録を非表示にする
    The effect of the mechanical properties on the MIT drape behaviors of fabrics are investigated by experiment and simulation. An improved MIT drape device enables us to detect the drape shapes of fabrics specimens with higher reproducibility than that of earlier authors. The large deformation of a fabric sample under drape is simulated by a non-linear FEM combined with an incremental method, where the sample is modeled by an elastic thin shell. The computed results and observed ones suggest that the simulation is valid for the estimation of the real MIT drape properties of fabrics, and that the MIT drape characteristics of fabrics depend appreciably on the bending rigidity and torsional one but little on the extensional rigidity and shearing one.
    抄録全体を表示
    PDF形式でダウンロード (590K)
  • 用紙中のＰＶＡ分布状態の解析
    内村 浩美, 内田 道治, 奥田 貴志, 佐渡 篤
    原稿種別: 研究論文
    専門分野: 情報学
    2002 年 58 巻 3 号 p. 84-90
    発行日: 2002年
    公開日: 2002/10/15
    DOIhttps://doi.org/10.2115/fiber.58.84
    ジャーナル フリー
    抄録を表示する抄録を非表示にする
    Polyvinyl alcohol (PVA) is used as a surface sizing agent of paper sheets. This report deals with the penetrability of PVA into the paper sheet structures. For paper sheet surface-sized by PVA, the PVA distribution in the paper sheet affects paper properties and printing qualities. Therefore, it is important to obtain information on the PVA distribution. However, the PVA distribution in paper sheet cannot be observed exactly by conventional methods. In the present study, we apply a new technique by combining the FIB method with EPMA after iodine labeling of PVA to the paper sheet, in order to obtain exact information on the interaction between the substrate structure and PVA. This novel technique enable us to clearly observe the distribution of PVA that has penetrated into the paper structure. Furthermore, we found that the difference in the distribution of PVA that penetrated into the paper structure influenced the liquid permeability of the oil type ink applied to the paper sheet.
    抄録全体を表示
    PDF形式でダウンロード (8384K)
  • ブロック化イソシアネートオリゴマーによるセルロース及びポリエステルの表面改質
    彭 新宏, 川瀬 徳三, 佐藤 昌子, 池野 宏司, 沢田 英夫
    原稿種別: 研究論文
    専門分野: 情報学
    2002 年 58 巻 3 号 p. 91-97
    発行日: 2002年
    公開日: 2002/10/15
    DOIhttps://doi.org/10.2115/fiber.58.91
    ジャーナル フリー
    抄録を表示する抄録を非表示にする
    Surface modification of cellulose and polyester by the oligomeric fluoroalkylating agents having oxime-blocked isocyanate groups was studied by measuring the contact angle, surface free energy, FT-IR(ATR) and XPS spectra. In the case of cellulose, the modified surface changed to oil-repellent. The dispersion components of the surface free energy γsd were 21-25mJ/m2 and the polar components γsp were 2-6mJ/m2 at above 2 wt% of treatment concentration of oligomer solution. There existed a linear relationship between the treatment concentration and the AC=O/AC-O peak ratios in FT-IR(ATR). Moreover, the surface free energy decreased with increase in the values of F1s/O1s peak area ratios in XPS and became constant above 0.2 of F1s/O1s peak area ratios. In the case of polyester, the contact angles of dodecane were 10-30o and those of water were about 80o even above 5 wt% of treatment concentration. The values of F1s/O1s peak area ratios increased with increase in the treatment concentration and became constant at above 5 wt% of treatment concentration. Based on the FT-IR(ATR) and XPS results, the structures of the modified layer were interpreted in terms of the modification mechanism. In the case of cellulose, the oligomer reacted at the surface, and some parts would diffuse into the inner region. On the other hand, the oligomers were thermally anchored at the polyester surface.
    抄録全体を表示
    PDF形式でダウンロード (832K)
  • Studies on the Sequence Distributions of Microbial Polyester by NMR and Determination of Melting Temperature
    Wen-chuan Hsieh, Kimihiko Nishiwaki, Nobuyuki Tanaka, Hiroshi Mitomo
    原稿種別: scientific monograph
    専門分野: Infomation Science
    2002 年 58 巻 3 号 p. 98-105
    発行日: 2002年
    公開日: 2002/10/15
    DOIhttps://doi.org/10.2115/fiber.58.98
    ジャーナル フリー
    抄録を表示する抄録を非表示にする
    The composition and dyad sequence distributions of bacterially synthesized copolymers of poly(3-hydroxybutyrate-co-4-hydroxybutyrate) P(3HB-co-4HB) have been studied by means of high-resolution 1H-, 13C-NMR spectroscopy and differential scanning calorimetry. These biodegradable copolyesters are mixtures of copolymers having different 4HB contents. The fractionation was carried out to obtain fractionated copolymers having narrower compositional distribution. The dyad sequence distributions of P(3HB-co-4HB) measured by NMR shows close to block copolymer in lower 4HB content side, whereas in higher 4HB content side, the that of P(3HB-co-4HB) indicates statistically random copolymer. The heat of fusion of P(3HB) and P(4HB) was estimated using Flory's equation. The values of heat of fusion of P(3HB) and P(4HB) measured were 1490 cal/mol and 2484 cal/mol. The values of number-average sequence lengths calculated from NMR and DSC show the P(3HB-co-4HB) copolymer including long continuous sequence in lower and higher 4HB content side.
    抄録全体を表示
    PDF形式でダウンロード (826K)
技術報文
  • シルク廃棄物の家禽飼料としての再利用
    金 東建, 金 圭範, 金 龍学, 陳 英吉, 上田 充夫
    原稿種別: 研究論文
    専門分野: 情報学
    2002 年 58 巻 3 号 p. 106-110
    発行日: 2002年
    公開日: 2002/10/15
    DOIhttps://doi.org/10.2115/fiber.58.106
    ジャーナル フリー
    抄録を表示する抄録を非表示にする
    A 30-day feeding trial was conducted to assess the effect of nutritive value for silk powder made from silk wastes to utilize a mixture of feed stuffs for laying hens. One hundred 10-week old commercial laying hens were allocated to one of the five dietary treatments. The dietary treatment consisted of the control diet, which contained maize as the usual stuffs, and four other diets each of which contained a blended amount of 5 % of silk powder for the feed input. Feed and water were provided ad libitum for a period of 30 days. The contrasted group of control diet was showed 82.33 % of egg production, while it was averaged as an increase to 85.58 % in the comparison test group of four other diets. The weight of laid egg was gained about 41.5 grams in the contrasted group, while it was increased about 3 grams to 4 grams in the comparison test group that gained the weight of 44 grams to 45 grams in the aggregate. As for the egg quality that was offered by silk powder as feed ingredient, the yolk contains 19.02 % of amino acids and the white 22.36 % respectively. The yolk was decreased, but the white increased in comparison with the contrasted group. The protein of egg was increased as 8 % to 10 % more than 7.5 % of the contrasted group, while the tryptophan and the cholesterol was decreased. The fats did not have significant difference.
    抄録全体を表示
    PDF形式でダウンロード (516K)
    • |<
    • <
    • 1
    • >
    • >|
feedback
 Top