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    • 80. 发明专利
    • Reversible thermochromic aqueous ink composition, writing implement using the same and writing implement set
    • 可逆的热致变色墨水组合物,使用相同的书写工具和书写工具
    • JP2011038048A
    • 2011-02-24
    • JP2009189038
    • 2009-08-18
    • Pilot Ink Co Ltdパイロットインキ株式会社
    • FUJITA KATSUYUKI
    • B43K8/02B43K8/03B43K29/02C09D11/00C09D11/16C09D11/17
    • C09D11/17B41M5/305B43K8/02B43K8/03B43K8/04B43K23/126B43K25/022B43K29/02B43L19/0068C09B67/0014C09B67/0085C09B67/009C09B67/0097C09D5/26C09D7/70
    • PROBLEM TO BE SOLVED: To provide a reversible thermochromic aqueous ink composition which can suppress the light-coloring and deepening of handwriting, and particularly, which exhibits such good writing performance that it does not light-color handwriting with time in an erecting state or does not light-color of handwriting by the application of vibration in transportation or at the time when it is carried on, and to provide a writing implement using the same and a writing implement set.
      SOLUTION: The reversible thermochromic aqueous ink composition comprises water, a water-soluble organic solvent, a reversible thermochromic microcapsule pigment including a reversible thermochromic composition composed of (i) an electron-donative coloring organic compound, (ii) an electron-accepting compound and (iii) a reaction medium which determines a temperature at which color reactions of the both compounds occur, a comb-type polymer dispersant having a carboxy group at the side chain, an organic nitrogen sulfur compound, and a water-soluble resin. The writing implement 1 uses the ink composition. The writing implement set comprises the writing implement 1 and a frictional body 7.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种能够抑制手写体的着色和深化的可逆热变色水性油墨组合物,特别是具有这样良好的书写性能,使其在竖立时不会随着时间而变色。 通过在运输中或在进行时的振动的应用来指示或不使用手写的浅色,并提供使用该手写体的书写工具和书写工具组。 解决方案:可逆热变色水性油墨组合物包含水,水溶性有机溶剂,可逆热变色微胶囊颜料,其包含可逆热变色组合物,其由(i)供电子着色有机化合物,(ii) 接受化合物和(iii)确定两种化合物发生显色反应的温度的反应介质,侧链具有羧基的梳型聚合物分散剂,有机氮硫化合物和水溶性树脂 。 书写工具1使用油墨组合物。 书写工具组包括书写工具1和摩擦体7.版权所有(C)2011,JPO&INPIT