发明名称 LASER ENGRAVING METHODS AND COMPOSITIONS
摘要 The invention provides a composition having laser engraving properties, comprising a host material and an effective amount of a laser enhancing additive. The laser enhancing additive comprises a first quantity of least one of copper potassium iodide, or Copper Iodide, and a second quantity at least one substance selected from the group consisting of zinc sulfide, barium sulfide, alkyl sulfonate, and thioester. The composition can be engraved with grayscale images (70, 72) by an Nd:Yag laser and can be added to laminates (52) or coatings. The composition can be used during the manufacture of many articles of manufacture, including identification documents (10).
申请公布号 WO03055684(A3) 申请公布日期 2005.05.06
申请号 WO2002US40906 申请日期 2002.12.20
申请人 DIGIMARC ID SYSTEMS, LLC;LABREC, BRIAN;JONES, ROBERT 发明人 LABREC, BRIAN;JONES, ROBERT
分类号 B23K26/00;B32B9/04;B41C;B41M3/14;B41M5/24;B41M5/26;B42D15/10;C08K3/16;C08K3/30;G03C1/00;G03C1/492;G03C1/494;G03C1/76;G06K5/00;G06K19/02;H01C13/00 主分类号 B23K26/00
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