AQUEOUS INK COMPOSITION FOR WRITING BOARD

PROBLEM TO BE SOLVED: To provide an aqueous ink composition for a writing board used for a white board, a black board and the like which keeps erasability and does not adversely affect the writing board even after used in outdoor that is in a severer condition than an indoor environment, in other wo...

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Bibliographische Detailangaben
1. Verfasser:	IMAI YOSHIMI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DYES FILLING PASTES INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an aqueous ink composition for a writing board used for a white board, a black board and the like which keeps erasability and does not adversely affect the writing board even after used in outdoor that is in a severer condition than an indoor environment, in other words, exposed at high temperature and to ultraviolet rays for a long time, is excellent in suppression of formation of a hard cake and does not impair brilliant feeling.SOLUTION: An aqueous ink composition for a writing board contains at least a plate-like pigment and hollow particles with an average particle size of 0.1-1.0 μm.SELECTED DRAWING: None 【課題】ホワイトボード、ブラックボードなどに用いられる筆記板用水性インク組成物において、室内環境よりも過酷な条件となる屋外での使用、すなわち、長時間の高温・紫外線暴露がなされた後であっても、消去性が維持され、筆記板に悪影響を与えず、しかも、ハードケーキ形成の抑制に優れ、光輝感も損なわない筆記板用水性インク組成物を提供する。【解決手段】少なくとも、平板状顔料及び平均粒子径が０．１〜１．０μｍである中空粒子を含有することを特徴とする筆記板用水性インク組成物。【選択図】なし