| 发明名称 |
METHOD FOR MAKING SAFETY PAPER WITH CHEMICAL WATERMARK |
| 摘要 |
The method is used for making watermarked safety paper and comprises the usual steps of a process of silk-screen printing on paper; moreover, a UV curing compound is used, adapted to alter the compactness and/or thickness of the paper fibers; the compound comprises urethane-acrylate resin and polyol-acrylate in the minimum total amount of 90% and maximum amount of 96%, and a low molecular weight methyl-methacrylate-n-butyl methacrylate copolymer, obtained from methyl and n-butyl esters of methacrylic acid, in the amount of 4-10%; the urethane-acrylate resin and the polyol-acrylate differ by a maximum percentage of 3%. |
| 申请公布号 |
US2014178589(A1) |
申请公布日期 |
2014.06.26 |
| 申请号 |
US201314077751 |
申请日期 |
2013.11.12 |
| 申请人 |
Tecchia Michele |
发明人 |
Tecchia Michele |
| 分类号 |
D21F1/44 |
主分类号 |
D21F1/44 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for making watermarked safety paper comprising the steps of a process of silk-screen printing on paper, wherein a UV curing compound is used, which is adapted to alter the compactness and/or thickness of the paper fibers, wherein said compound comprises urethane-acrylate resin and polyol-acrylate in the minimum total amount of 90% and maximum amount of 96%, and a low molecular weight methyl-methacrylate-n-butyl methacrylate copolymer, obtained from methyl and n-butyl esters of methacrylic acid, in the amount of 4-10%, and wherein said urethane-acrylate resin and said polyol-acrylate differ by a maximum percentage of 3%. |
| 地址 |
Genova IT |
