发明名称 |
COATINGS FOR USE WITH BUSINESS FORMS, SECURITY DOCUMENTS, OR SAFETY PAPER |
摘要 |
Carbonless coating compositions which can be printed onto one or more sheets of a business form or mailer to provide a visible image which is sharper and darker than previous coatings are provided. The compositions also find use on security documents and safety papers to provide a covert image on the document beneath information which may be subject to attempted alteration, such as the amount written on a check. The covert image becomes visible upon the application of pressure or solvent in the area coated to provide evidence of the attempted alteration. The self-contained composition includes an admixture of a color former, a color developer, and a plurality of pressure-rupturable microcapsules containing a solvent. Another solvent-sensitive composition includes an admixture of a color former and a color developer.
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申请公布号 |
CA2060939(C) |
申请公布日期 |
1996.08.20 |
申请号 |
CA19922060939 |
申请日期 |
1992.02.10 |
申请人 |
STANDARD REGISTER COMPANY (THE) |
发明人 |
DOTSON, MARK DOUGLAS;PARENTI, FRANK V. |
分类号 |
B41M3/14;B41M5/132;(IPC1-7):B41M5/165 |
主分类号 |
B41M3/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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