发明名称 |
METHOD OF PRODUCING COLOR CHANGE IN OVERLAPPING LAYERS |
摘要 |
<p>The present invention relates to methods of producing color change in overlapping layers of material. The method comprises providing a first layer having a first activatable colorant and a second layer having a second activatable colorant. A first external stimulus is applied to activate the first activatable colorant and produce a first activated color region in the first layer. A second external stimulus is applied to activate second activatable colorant and produce a second activated color region in the second layer.</p> |
申请公布号 |
EP2496198(A1) |
申请公布日期 |
2012.09.12 |
申请号 |
EP20100774104 |
申请日期 |
2010.11.02 |
申请人 |
THE PROCTER & GAMBLE COMPANY |
发明人 |
ARORA, KELYN, ANNE;HAMMONS, JOHN, LEE |
分类号 |
A61F13/47;A61F13/15;A61F13/49;A61F15/00;B41M5/124;B41M5/26;B41M5/28;B41M5/34;G03C1/73;G03C1/76;G03F7/105 |
主分类号 |
A61F13/47 |
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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