New Sizing Agent「SIZEPINE CA-956」

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  • Hisamoto Ken
    Research & Development H.Q., Paper Chemicals, Arakawa Chemical Industries, Ltd.

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  • 新規サイズ剤「サイズパインCA-956」について
  • シンキ サイズザイ 「 サイズパイン CA-956 」 ニ ツイテ

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Abstract

<p>In the paperboard manufacturing, it has become difficult for internal chemical additives to function properly since the increase of calcium carbonate-containing waste paper and more closed papermaking system. Rosin sizing agent, known as a main force of internal sizing agent, is considered to perform poorly under the trend of pH rising in papermaking system. For general sizing agents other than rosin, AKD and ASA are well known. However, even though they have excellent performance, various disadvantages such as slow progressive development of sizing effect and concern for their stability. In such situation, we have newly developed “SIZEPINE CA-956”. It is the fourth general sizing agent, following rosin, AKD and ASA, which is able to adapt to wide range of pH.</p><p>SIZEPINE CA-956 has long alkyl chains as hydrophobic group, and special polar groups. It also needs Alum to function as traditional rosin sizing agent does. However, compared to rosin size, SIZEPINE CA-956 has a different coordination system, and shows predominance under low Alum dosage, even only with the Alum derived from waste paper material. Furthermore, the performance of SIZEPINE CA-956 is not susceptible to pH and temperature of wetend as well as drying temperature in papermaking process. Besides, it has no problems such as slow progressive development of sizing effect of AKD and over-time deterioration of ASA.</p><p>In preparation for future changes in papermaking environment and market, we are promoting development for further application possibilities of this novel sizing agent.</p>

Journal

  • JAPAN TAPPI JOURNAL

    JAPAN TAPPI JOURNAL 74 (9), 894-898, 2020

    JAPAN TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY

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