| 摘要 |
<p>The process comprises a basic sheet of paper coated on one side with gum arabic and/or water-soluble glue for coating with plasticised varnish to exclude adhesion with the subsequent inscription. The inscription is then applied by offset and/or serigraphy, to a thickness of 10-15 u and in the required colours. - The sheet is dried after application of each coating.</p> |
