| 摘要 |
<p>A pressure-transferable ink composition for duplicate printing and writing comprises, by weight, ten parts of a solid base material consisting essentially of a vinyl polymer, preferably a vinyl chloride-vinyl acetate copolymer, twenty to thirty-five parts of one or more of mineral oil, castor oil, oleyl alcohol, neatsfoot oil and oleic acid, and a quantity of colouring matter. The composition may be applied to a sheet in admixture with a volatile liquid vehicle, such as a mixture of ethyl acetate and toluol.</p> |
