Inhibition of Yellowing of ECF Bleached Hardwood Kraft Pulp

• Kawae Ayano

  Research Development Div. Pulp & Paper Research Laboratory, Oji Paper Co., Ltd.

• Uchida Yosuke

  Research Development Div. Pulp & Paper Research Laboratory, Oji Paper Co., Ltd.

Bibliographic Information

Other Title

• ECF漂白パルプの褪色防止について

Abstract

The aim of this work was to inhibit the heat-and moisture-induced yellowing of ECF bleached hard wood kraft pulp (LBKP) in acidic paper. We have already reported that one of the derivatives of hexenuronic acid (HexA) in LBKP, 5-formyl-2-furancarboxylic acid (FFA) , causes yellowing, and that FFA might polymerize or react with pulp components to form new chromophoric groups 1) .<BR>In this study, it was shown that the carboxylic base of FFA interacts with that of glucuronic acid or galacturonic acid, resulting in strong yellowing. Therefore, it seems that preventing the reaction of carboxylic bases could be effective in suppressing this yellowing. We have discovered that polycarboxylic acids (for example, citric acid, tartaric acid, etc.) are useful as a yellowing inhibitor.

Journal

• JAPAN TAPPI JOURNAL

  JAPAN TAPPI JOURNAL 61 (1), 59-62, 2007

  JAPAN TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY

Keywords

• K<SUB>12</SUB>無塩素漂白
• R<SUB>4</SUB>クラフトパルプ

Details

• CRID: 1390001206515149568
• NII Article ID: 10018455938
• NII Book ID: AN00379952
• DOI: 10.2524/jtappij.61.59
• COI: 1:CAS:528:DC%2BD2sXhtF2rurg%3D
• ISSN: 18811000
• ISSN: 0022815X
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed