发明授权
US08211509B2 Alignment of paste-like ink having magnetic particles therein, and the printing of optical effects
有权
在其中具有磁性颗粒的糊状油墨的对准和光学效果的印刷
- 专利标题： Alignment of paste-like ink having magnetic particles therein, and the printing of optical effects
- 专利标题（中）： 在其中具有磁性颗粒的糊状油墨的对准和光学效果的印刷
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申请号： US11252681申请日： 2005-10-18
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公开(公告)号： US08211509B2公开(公告)日： 2012-07-03
- 发明人: Vladimir P. Raksha , Dishuan Chu , Thomas Mayer , Charles T. Markantes , Paul G. Coombs
- 申请人： Vladimir P. Raksha , Dishuan Chu , Thomas Mayer , Charles T. Markantes , Paul G. Coombs
- 代理机构： Pequignot + Myers LLC
- 代理商 Matthew A. Pequignot
- 主分类号： H01F1/00
- IPC分类号： H01F1/00 ; B29C35/08 ; B05D5/06 ; B05D5/12 ; B05D1/12 ; B05D5/00 ; B05D1/32 ; B05D1/06 ; H05C1/00 ; B44F1/12 ; B29C67/00
摘要：
A method and apparatus is provided for printing using paste like inks such as those used in intaglio printing, wherein the inks include specialty flakes such as thin film optically variable flakes, or diffractive flakes. The invention discloses an apparatus having an energy source such as a heat source for temporarily lessening the viscosity of the ink during alignment of the flakes within the ink.