Journal of the Japan Society of Colour Material
Online ISSN : 1883-2199
Print ISSN : 0010-180X
ISSN-L : 0010-180X
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Volume 60, Issue 3
Displaying 1-4 of 4 articles from this issue
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  • Synthesis and Properties of Metal Chelates of the Group IV Element with the Ligand of Schiff Base
    Synthesis of Titanium, Zirconium and Silicon Chelates and their Properties as a Coloring Material
    Takahisa MISONO, Tetsuro KIKUCHI, Katsuhiko SAWAMURA, Yukinori NAGAO, ...
    1987 Volume 60 Issue 3 Pages 147-152
    Published: March 20, 1987
    Released on J-STAGE: November 20, 2012
    DOIhttps://doi.org/10.4011/shikizai1937.60.147
    JOURNAL FREE ACCESS
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    Titanium, zirconium and silicon chelates of aromatic 2, 2'-dihydroxy azomethines were synthesized and their properties as a coloring material for resins were investigated. Silicon chelates decomposed at above 400°C and/or 500°C. Their thermal stabilities were excellent in comparison with those of titanium and zirconium chelates. Polystyrene resins were colored brown or red with titanium chelates, yellow or orange with zirconium chelates and yellow or red with silicon chelates. Fastness to heat, light and bleeding of these chelates on the colored resins were determined. Fastness to heat of chelates with ligand of electron donating group was higher than that with ligand of electron withdrawing group. Fastness to bleeding was moderate regardless of the metal and ligand. On the other hand, fastness to light of chelates markedly depended on the metal and showed increasing grades in the order of zirconium, silicon and titanium chelate ; especially titanium chelates showed higher grades above seven.
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  • Redeposition of Carbon Black onto Hydrophilic and/or Hydrophobic Fibers
    Keizo OGINO, Taichi MIYAZAKI, Masahiko ABE
    1987 Volume 60 Issue 3 Pages 153-159
    Published: March 20, 1987
    Released on J-STAGE: November 20, 2012
    DOIhttps://doi.org/10.4011/shikizai1937.60.153
    JOURNAL FREE ACCESS
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    The redeposition of carbon black onto hydrophilic fiber (cotton) and/or hydrophobic fiber (nylon) has been studied in aqueous solutions of detergents ; these are sodium dodecyl sulfate (SDS), sodium silicate, sodium carbonate, sodium carboxymethyl cellulose (CMC), and sodium sulfate.
    The degree of redeposition of carbon black onto both cotton and nylon fibers were very small in aqueous SDS or CMC solutions because of cζ-potential values of carbon black or fibers due to the deposition of SDS or CMC onto them, and of structual effect of SDS or CMC. On the other hand, in various builders solutions, the redeposition of carbon black onto each fiber was dependent on their concentration. Moreover, the redeposition of carbon black was dependent on the thickness of the electrical double layer, and on both VT, max of carbon black/fiber, and of carbon blacks in those aqueous solutions.
    It is considered that increasing of the thickness of electrical double layer and of VT, max between carbon blacks (and/or between carbon black and fiber) may play on important role to defend the deposition of carbon black onto fibers.
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  • Application of Induction Heating on Curing of Coating Film
    Keiji YOSHIDA
    1987 Volume 60 Issue 3 Pages 160-166
    Published: March 20, 1987
    Released on J-STAGE: November 20, 2012
    DOIhttps://doi.org/10.4011/shikizai1937.60.160
    JOURNAL FREE ACCESS
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  • Physical-Chemical Properties of Suspensions (II)
    Rheology of Suspensions
    Tatsuo SATO
    1987 Volume 60 Issue 3 Pages 167-175
    Published: March 20, 1987
    Released on J-STAGE: November 20, 2012
    DOIhttps://doi.org/10.4011/shikizai1937.60.167
    JOURNAL FREE ACCESS
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