| CPC B29C 64/165 (2017.08) [B29C 64/30 (2017.08); C08L 41/00 (2013.01); C08L 69/00 (2013.01); C08L 71/00 (2013.01); B29K 2071/00 (2013.01); B29K 2105/0085 (2013.01); B29K 2105/251 (2013.01); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 40/00 (2014.12); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12)] | 9 Claims |
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1. A method for manufacturing a three-dimensional article, the method comprising:
a. depositing a powder on a build layer to form a powder bed on top of the build layer;
b. printing, on the powder bed,
a first solution of a first binding agent at a first location on the powder bed which penetrates the powder bed to the build layer; and/or
a second solution of a second binding agent at a second location on the powder bed;
c. exposing any first binding agent and second binding agent printed in step (b) to one or more stimuli to bind together the powder on which a binding agent was printed so as to form a new build layer that is bound to the original build layer;
d. repeating steps (a)-(c) to manufacture the remainder of an intermediate three-dimensional article;
wherein the first binding agent and the second binding agent are each printed in the same layer at least once and
wherein the first location and the second location are not the same;
e. removing the intermediate three-dimensional article from a build plate and removing unbound powder from the intermediate three-dimensional article; and
f. removing second binding agent from the intermediate three-dimensional article so as produce the manufactured three-dimensional article, wherein the manufactured three-dimensional article comprises the first binding agent;
wherein the second binding agent is a self-immolative polymer.
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