| 摘要 |
<p>Ink contains a colouring material, a film-forming resin binder, and a solvent which contains a lactone of an alkoxylene radical with 2-6C atoms. Pref. the lactone is 5-100 % of the solvent mass, pref. at least 50%. In is 4-butyrolactone, beta-propiolactone, 4-valerolactone. or 6-hexanolactone.</p> |
