紙パ技協誌
Online ISSN : 1881-1000
Print ISSN : 0022-815X
ISSN-L : 0022-815X
39 巻, 4 号
選択された号の論文の7件中1~7を表示しています
  • 鴻野 銃二郎
    1985 年 39 巻 4 号 p. 355-366
    発行日: 1985/04/01
    公開日: 2009/11/16
    ジャーナル フリー
    The recent coating technologies in coated printing papers are summarized mainly for a number of literatures published for past two years. The main subject of the present paper is to report the improvement in coater, the rheological properties of coating colors upon blade, the high solid coating and the development in latex.
    The paper (I) describes a marketing trend of coated printing paper and a classification of many kinds of coater heads
  • 飯田 俊男
    1985 年 39 巻 4 号 p. 367-374
    発行日: 1985/04/01
    公開日: 2009/11/16
    ジャーナル フリー
    This paper surveys multilayer materials on three sides, substrates, adhesive materials and processing technology, and refers to the market application and forcasts future trends.
  • 中野 準三, 角 祐一郎, 猪狩 俶将, 石原 達夫, 岩崎 誠, 上野 中, 臼田 誠人, 宇津木 靖, 可知 省吾, 外林 仁志, 西山 ...
    1985 年 39 巻 4 号 p. 375-384
    発行日: 1985/04/01
    公開日: 2010/04/23
    ジャーナル フリー
  • 三沢 静雄
    1985 年 39 巻 4 号 p. 385-389
    発行日: 1985/04/01
    公開日: 2009/11/16
    ジャーナル フリー
    The Contents of this article may be summarized as follows.
    1. Instruments of NOx reduction
    (1) On adoption of pulverized coal burner for NOx reduction
    (2) On adoption of the bias combustion
    (3) On improvement of the wind box
    (4) On change of the diameter of burner throat
    2. Results of the combustion test and effects of NOx reduction
  • 稲わらパルプの酸化漂白について
    戸坂 圀夫, 林 治助
    1985 年 39 巻 4 号 p. 391-398
    発行日: 1985/04/01
    公開日: 2009/11/16
    ジャーナル フリー
    For obtaining high brightness pulp, O2, O3 and H2O2 bleaching and subsequent ClO2 bleaching have been carried out with two sorts of unbleaching pulp obtaind by alkali-oxygen pulp-ing process with pulping condition (I) and (II) from rice straw. And the effects of those bleaching was evaluated on the basis of brightness and paper strength of pulp obtained by oxidative bleaching and by subsequent ClO2 bleaching.
    (1) The both unbleached pulps were possible to obtain more higher brightness with O3 bleaching, but paper strength, especially tear factor were decreased remakably.
    (2) The unbleached pulp obtained with pulping condition (I) were increased generally 5 points of brightness with O2 and H2O2 bleaching, but the unbleached pulp obtained with pulping condition (II) were not improved thier brightness with those bleaching.
    (3) The bleached pulp of brightness over 80% were obtained from O3 bleached pulp and commercial Cl2 treated pulp with one stage bleaching. But paper strength of the former had showed remakable low value and it was necessitated to investigate appropriate protector for O3 bleaching.
    (4) For obtaining the bleached pulp over 80% brightness from pulp obtained with O2 bleaching, two stage ClO2 bleaching were required, but paper strength of obtained pulp were maintained same strength with original pulp. And the pulps obtained with H2O2 bleaching and subsequent two stage ClO2 bleaching were not attained to brightness over 80%.
  • 木村 実, 二宮 清隆, 門屋 卓
    1985 年 39 巻 4 号 p. 399-406
    発行日: 1985/04/01
    公開日: 2009/11/16
    ジャーナル フリー
    Press drying is a technique where the wet sheet is simultaneously pressed and dried with z-directional restraint. Since fibrous materials, especially those from high yield pulps, become more pliable with press drying, improved strength properties of the sheet can be expected.
    Bleached softwood kraft pulpsheet was press-dried in this study to evaluate the potential applicability of this method to the effective use of wood resources.
    The results of the mechanical tests indicated that press drying was effective for bleached chemical pulpsheet as well as for high yield pulpsheet. This leads to the assumption that some mechanism other than lignin flow contributes to the superiority of mechanical properties of the press dried sheet. It is possible that the fibers become soft and compressible in the presence of heat and water even after lignin is removed from them. According to Scallan's model on the microstructure of pulp, shear deformation at an interfibrillar region takes place easily by external load when water penetrates the interlamella of the fibers.
    A denser part at both sheet surfaces was assumed by the results of the bending test. However, more careful experiments focussing on the sheet structure are required to draw a clear conclusion on a z-directional uneven mass distribution.
  • 1985 年 39 巻 4 号 p. 407
    発行日: 1985/04/01
    公開日: 2009/11/16
    ジャーナル フリー
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