Effect of Water Retention of Coating on Sheet Properties. Part II. Latex Penetration into Base Paper.

DOI 2 Citations

Bibliographic Information

Other Title
  • 塗料の保水性が塗工紙物性に与える効果　（第２報）　　塗料中のラテックス浸透
  • Part II. Latex Penetration into Base Paper
  • 塗料の保水性が塗工紙物性に与える効果 (第2報)

Description

The water retention of coating color on base paper is one of the most important properties that affect the sheet properties of coated paper. However, we do not have any standard to evaluate water retention of coating color even though some methods have been suggested to evaluate water retention of coating color. We divided “Water Retention” into static water retention and dynamic water retention and evaluated coating runnability by the two kinds of water retention.<BR>In this study, we measured water loss rate of actual coatings and dilute latex emulsions, a common part of typical coatings. We suggested a new concept “Interactive Water Retention”, which is calculated from these water loss rates. Interactive Water Retention and water loss ratio were used as an index to evaluate the coating properties.<BR>Binder in a coating color penetrates into base paper when the coating color is applied. Binder in coating goes through a filter and also penetrated into filter papers when water loss ratio is measured under pressure. This binder (SB-latex) penetration is measured by reflected ultraviolet absorption. We suggested new concepts “Total Latex Loss” and “Penetrating Latex Loss”, which are calculated from these signals and the depth of latex penetration. We also suggested new concepts “Interactive Latex Retention I”, which is calculated from a “Total Latex Loss” of a coating and a latex solution, and “Interactive Latex Retention II”, which is calculated from a “Penetrating Latex Loss” of a coating and a latex solution. Total Latex Loss, Penetrating Water Loss, Interactive Latex Retention I and II were used as an index to evaluate the coating properties.<BR>Water Loss Rate, Interactive Water Loss, Total Latex Loss, Penetrating Latex Loss, and Interactive Latex Retention I and II were different from each other and apposite to evaluate coating color.

Journal

  • JAPAN TAPPI JOURNAL

    JAPAN TAPPI JOURNAL 53 (6), 755-764, 1999

    JAPAN TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY

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Details 詳細情報について

  • CRID
    1390001206513237120
  • NII Article ID
    130003688433
  • DOI
    10.2524/jtappij.53.755
  • COI
    1:CAS:528:DyaK1MXjvFWiu7o%3D
  • ISSN
    18811000
    0022815X
    http://id.crossref.org/issn/0022815X
  • Text Lang
    ja
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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