| 摘要 |
PURPOSE:To assure satisfactory printing performance with adjoining liquid inks not being mixed and not absorbing moisture in the air by providing the vehicle of each liquid ink consisting of water-insoluble oil, the oil of one vehicle having non-compatibility or retarded compatibility with the oil of the other vehicle. CONSTITUTION:A cloth ribbon base is a material which is plain-woven with nylon fiber of polyester fiber or cotton or silk fiber. Liquid ink impregnated into these bases are composed of a coloring agent and a vehicle. A coloring agent used is of single ingredient type, i.e. either of various organic pigments, inorganic pigments or dyes, or a mixture of more than one kinds of these materials. The vehicle is made up of liquid oil at normal temperatures with the addition of any proper surfactant, if required. The oil has a viscosity of 5-100 poises (value obtained by the Rodvisco viscosimeter) at normal temperature, and each different type of oil used is a monoingredient oil having non- compatible or retarded mutual compatible solubility. |
