The Influence of Wet End Chemicals on Paper Density and Strength

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Other Title
  • 嵩高紙の密度／強度のバランスに関する内添薬品の影響
  • カサダカシ ノ ミツド キョウド ノ バランス ニ カンスル ナイテン ヤクヒン ノ エイキョウ
  • -The Effect of Paper Additives Used for “Bulky Paper”-
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Abstract

Low-density paper is now most trendy in Japanese market in recent years. Consumption of low-density paper, called “bulky paper”, becomes higher and the market grows getting larger. Many types of “bulky paper” have been developed, and most of them are used for high quality printing paper, million-seller book, wood-free printing paper, and so on.<BR>One of the most important feature of “bulky paper” is a thickness of the paper. Although the basis weight of paper is same, bulky paper is thicker, lighter and softer than traditional ones. Paper strength of bulky paper is supposed to be weaker, therefore, it is important to prevent decreasing tensile strength or internal bond strength of the paper. In order to produce well-balanced sheet, addition level of paper strength agent, such as cationic starch, modified polyacrylamide, and bulking promoters (agent) , organic and inorganic compounds, are discussed.

Journal

  • JAPAN TAPPI JOURNAL

    JAPAN TAPPI JOURNAL 61 (4), 440-445, 2007

    JAPAN TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY

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