发明授权
US5891232A Smearfastness and fast drying times in inks containing macromolecular chromophores 失效
含有大分子发色团的油墨的耐油性和快干时间

Smearfastness and fast drying times in inks containing macromolecular
chromophores
摘要:
A smearfast, waterfast, and fast drying ink is provided, employing macromolecular chromophores (MMCs) and both ionic surfactants and zwitterionic, or amphoteric, surfactants, in which the ionic surfactant is of the opposite polarity of the MMC. Macromolecular chromophores are pigments whose surface has been treated to provide either anionic or cationic functional groups thereon. The zwitterionic surfactant gives rise to waterfastness, while the ionic surfactant gives rise to both smearfastness and fast drying.
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