公开(公告)号：US20040053011A1

公开(公告)日：2004-03-18

申请号：US10114372

申请日：2002-04-01

Applicant: Scientific Games Inc.

Inventor： William F. Behm ,  Kenneth E. Irwin JR. ,  Mark Tevis

IPC: B05D005/00

CPC classification number: G06K7/081 ,  A63F3/0665 ,  G06K7/085 ,  G06K19/067 ,  H05K3/12 ,  Y10T428/24802

Abstract: A method for forming a document includes the steps of (1) selecting a marking medium that has a pre-determined machine-readable characteristic, and (2) selecting a document substrate that is compatible with the pre-determined machine-readable characteristic of the selected marking medium. An information symbol is secured to the selected document substrate. A security layer which includes the selected marking medium is also affixed to the document substrate so that the security layer is in at least partial register with the information symbol. The method can further include the step of affixing a blocking layer to the document substrate in at least partial register with the information symbol. The blocking layer can be affixed to the document substrate so that blocking layer is intermediate the information symbol and the security layer or so that the security layer is intermediate the information symbol and the blocking layer. Inks that can be printed with conventional printing methods, such as intaglio printing, screen printing, relief printing, planographic printing, letterpress printing, and flexographic printing, are especially useful as any of the selected marking media. The ink used is chosen for a particular machine-readable characteristic such as dry-state conductance, fluorescence, optical density, reflectance, and scattering. For example, an ink which has a known, measurable conductance in a dry-state can be used to print conductive layers on the document which serve as security layers.

Abstract translation: 一种用于形成文档的方法包括以下步骤：（1）选择具有预定机器可读特性的标记介质，以及（2）选择与预定机器可读特性兼容的文档基板 选择标记介质。 信息符号被固定到所选择的文档衬底。 包括所选择的标记介质的安全层也被附加到文档基板，使得安全层至少部分地与信息符号对准。 该方法还可以包括在与信息符号的至少部分寄存器中将阻挡层附着到文档衬底的步骤。 可以将阻挡层固定到文档基板，使得阻挡层位于信息符号和安全层之间，或者使安全层位于信息符号和阻挡层之间。 可以使用常规打印方法印刷的油墨，例如凹版印刷，丝网印刷，凸版印刷，平版印刷，凸版印刷和柔性版印刷，作为任何选定的标记介质是特别有用的。 所使用的墨水用于特定的机器可读特性，例如干态电导，荧光，光密度，反射率和散射。 例如，可以使用在干燥状态下具有已知的可测量电导的油墨来印刷作为安全层的文件上的导电层。