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US 12,728,593 B2Granted
Fusing agents with triazine radiation absorbers for three-dimensional printing
AssigneePeridot Print LLC
InventorsKyle Wycoff, Adekunle Olubummo, Krzysztof Nauka, Aja Hartman, Michelle Niu, Emre Hiro Discekici
Life of this patent
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Abstract
A fusing agent for three-dimensional printing can include from about 0.5 wt % to about 6 wt % triazine radiation absorber; from about 40 wt % to about 90 wt % organic cosolvent; from about 0.4 wt % to about 4 wt % of a surfactant selected from a polyethylene sorbitol ester, a polyoxyethylene lauryl ether, or a mixture thereof; and water.
Claims20
A fusing agent for three-dimensional printing, the fusing agent comprising:
- from about 0.5 wt % to about 6 wt % of a triazine radiation absorber;
- and
- a liquid vehicle including:
- from about 40 wt % to about 90 wt % of a plurality of organic cosolvents based on a total weight of the fusing agent, wherein the plurality of organic co solvents is octyl acetate, heptanol, ethanol, and diethylene glycol butyl ether;
- from about 0.4 wt % to about 4 wt % of a surfactant based on the total weight of the fusing agent, wherein the surfactant is selected from the group consisting of a polyethylene sorbitol ester, a polyoxyethylene lauryl ether, and a mixture thereof;
- and
- water.
4 more elements
A three-dimensional printing system, comprising:
- a build material including from about 80 wt % to 100 wt % of polymeric particles having a D50 particle size of from about 10 μm to about 150 μm;
- and
- a fusing agent including:
- from about 0.5 wt % to about 6 wt % of a triazine radiation absorber solubilized in a liquid vehicle, wherein the liquid vehicle includes:
- from about 40 wt % to about 90 wt % of a plurality of organic cosolvents, based on a total weight of the fusing agent solution, wherein the plurality of organic cosolvents is octyl acetate, heptanol, ethanol, and diethylene glycol butyl ether;
- from about 0.4 wt % to about 4 wt % of a surfactant, based on the total weight of the fusing agent solution, wherein the surfactant is selected from the group consisting of a polyethylene sorbitol ester, a polyoxyethylene lauryl ether, and a mixture thereof;
- and
- water.
5 more elements
A method for three-dimensional printing, the method comprising:
- iteratively applying individual build material layers of a polymer build material including from about 80 wt % to 100 wt % of polymeric particles having a D50 particle size of from about 10 μm to about 150 μm to a powder bed;
- based on a three-dimensional object model, iteratively and selectively dispensing a fusing agent onto the individual build material layers, wherein the fusing agent includes:
- from about 0.5 wt % to about 6 wt % of a triazine radiation absorber solubilized in a liquid vehicle, wherein the liquid vehicle includes;
- from about 40 wt % to about 90 wt % of a plurality of organic cosolvents, based on a total weight of the fusing agent solution, wherein the plurality of organic cosolvents is octyl acetate, heptanol, ethanol, and diethylene glycol butyl ether;
- from about 0.4 wt % to about 4 wt % of a surfactant based on the total weight of the fusing agent solution, wherein the surfactant is selected from the group consisting of a polyethylene sorbitol ester, a polyoxyethylene lauryl ether, and a mixture thereof;
- and
- water;
- and
- iteratively exposing the powder bed to light energy having a peak wavelength of from about 340 nm to about 415 nm at an energy level of from about 2 W/cm2 to about 50 W/cm2 for a time duration of from about 0.05 second to about 10 seconds to selectively fuse the polymeric particles in contact with the triazine radiation absorber at the individual build material layers resulting in a fused three-dimensional object.
6 more elements
Dependencies are inferred from the claim text.