CPC B42D 25/29 (2014.10) [B29C 64/118 (2017.08); B29C 64/153 (2017.08); B42D 25/378 (2014.10); B42D 25/405 (2014.10); B33Y 30/00 (2014.12); B33Y 70/10 (2020.01); B33Y 80/00 (2014.12)] | 21 Claims |
1. A print feedstock having a base material in a first layer and a marker material in a second layer, the base material and the marker material having different physical properties, the marker material selected to interact with the base material to cause the base material to form a random, detectable, pattern in the first layer.
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