US 2022/0064461 A1 · THREE-DIMENSIONAL PRINTING

Abstract

An example of a three-dimensional (3D) printing kit includes a build material composition and a fusing agent to be applied to at least a portion of the build material composition during 3D printing. The build material composition includes a polyamide having a melt enthalpy ranging from greater than 5 J/g to less than 150 J/g. The fusing agent includes an energy absorber to absorb electromagnetic radiation to coalesce the polyamide in the at least the portion. The fusing agent is a core fusing agent and the energy absorber has absorption at least at wavelengths ranging from 400 nm to 780 nm; or the fusing agent is a primer fusing agent and the energy absorber is a plasmonic resonance absorber having absorption at wavelengths ranging from 800 nm to 4000 nm and having transparency at wavelengths ranging from 400 nm to 780 nm.

Claims15

Dependent claims

A three-dimensional (3D) printing kit, comprising:

a build material composition including a polyamide having a melt enthalpy ranging from greater than 5 J/g to less than 150 J/g;
and
a fusing agent to be applied to at least a portion of the build material composition during 3D printing, the fusing agent including an energy absorber to absorb electromagnetic radiation to coalesce the polyamide in the at least the portion, wherein:
the fusing agent is a core fusing agent and the energy absorber has absorption at least at wavelengths ranging from 400 nm to 780 nm;
or
the fusing agent is a primer fusing agent and the energy absorber is a plasmonic resonance absorber having absorption at wavelengths ranging from 800 nm to 4000 nm and having transparency at wavelengths ranging from 400 nm to 780 nm.

3 more elements

Dependencies are inferred from the claim text.

Three-dimensional printing

Life of this patent

Three-dimensional printing

Life of this patent

Abstract

Claims15