发明申请
- 专利标题： Method of Producing Color Change in a Web Substrate
- 专利标题（中）： 在Web基板中产生颜色变化的方法
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申请号： US12766716申请日： 2010-04-23
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公开(公告)号： US20110262653A1公开(公告)日： 2011-10-27
- 发明人: Kelyn Anne Arora , John Lee Hammons
- 申请人： Kelyn Anne Arora , John Lee Hammons
- 主分类号： B29C71/04
- IPC分类号： B29C71/04 ; B29C71/02
摘要：
The present invention relates to a method of producing a web substrate comprising an activatable colorant and at least one region comprising a topical additive. The web substrate is exposed to a first external stimulus producing a first activated color region. The first activated color region is subsequently exposed to a second external stimulus producing a second activated color region within the first activated color region. The second external stimulus is induced by application of the topical additive such that the second activated color region coincides with the topical additive region.
公开/授权文献
- US08440587B2 Method of producing color change in a web substrate 公开/授权日：2013-05-14
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