Systems and methods of forming structures on flexible substrates
Embodiments related to systems and methods of forming structures on substrates (e.g., flexible substrates, fabrics, textiles, leathers) are disclosed. In some embodiments, a method of forming a structure on a substrate is provided. The method may involve submerging at least one surface of the substrate into a resin bath. The method may include patterning electromagnetic radiation through a window onto one or more regions of the substrate to polymerize the resin onto the one or more regions of the substrate. An alternative method may involve covering a surface of the substrate with a layer of polymeric powder. The alternative method may include directing electromagnetic radiation toward one or more regions on the surface of the substrate to heat the polymeric powder to form a layer on the surface of the substrate. A method of depositing an ultraviolet (UV)-curable material onto a substrate by a valve jetting process is also provided.
1. A method for forming a three-dimensional structure, the method comprising:
bringing one or more surfaces of a substrate into contact with a resin that is at least in part electromagnetic radiation-curable, by jetting said resin onto said substrate using a valved nozzle;
patterning electromagnetic radiation from a radiation source and through a window into the resin to polymerize the resin onto the substrate, wherein the radiation source is positioned above or below the resin; and
continuing to pattern electromagnetic radiation into the resin to form a three-dimensional structure while simultaneously translating the substrate with respect to the electromagnetic radiation source in a translation direction, wherein the window is angled such that a gap between the window and the surface of the substrate increases in the translation direction.
2. The method of claim 1 , wherein the substrate is a textile.
3. The method of claim 1 , wherein the substrate is a belt.
4. The method of claim 1 , comprising positioning a blade so that the blade is configured to separate the three-dimensional structure from the substrate as the substrate is translated.
5. The method of claim 1 , comprising translating the substrate in a loop such that the method repeats on at least a portion of the substrate.