A washable multiple coloring composition system is disclosed whose coloring effect is changed upon treatment with a second coloring composition, once the second coloring composition has been deposited over the undercolor coloring composition. The washable multiple ink system comprises:
(a) an undercolor aqueous coloring composition comprising a compatable surfactant in an amount sufficient to provide washability and an undercolor dye whose coloring ability is destroyed in the presence of a pH of about 10 or greater and/or by a reducing agent; and
(b) an overcolor aqueous coloring composition comprising a compatable surfactant in an amount sufficient to provide washability, a colorant capable of maintaining its characteristic color in the presence of a pH of about 10 or greater and/or a reducing agent, a base in an amount sufficient to yield a pH of the overcolor composition of about 10 or greater, and/or a reducing agent.
本发明公开了一种可
水洗的多重着色组合物系统,当第二着色组合物沉积在底色着色组合物上后,经第二着色组合物处理后,其着色效果会发生变化。可
水洗的多重油墨系统包括
(a) 底色
水性着色组合物,该组合物包含可相容的表面活性剂,其用量足以提供可
水洗性,以及底色
染料,其着色能力在 pH 值约为 10 或更高和/或还原剂的存在下被破坏;以及
(b) 一种上色
水性着色组合物,包括一种可相容的表面活性剂,其用量足以提 供可洗涤性;一种
着色剂,其在 pH 值约为 10 或更高和/或还原剂存在时能保持其特 殊颜色;一种碱,其用量足以使上色组合物的 pH 值约为 10 或更高,和/或还原 剂。