公开(公告)号：US20240026183A1

公开(公告)日：2024-01-25

申请号：US18351875

申请日：2023-07-13

Applicant: 3D SYSTEMS, INC.

Inventor： Monica KEILSOHN ,  Michael BRADY ,  Khalil MOUSSA

IPC: C09D151/08 ,  B33Y70/00 ,  C09D4/00 ,  C09D7/41 ,  C08F290/06 ,  A61L27/52 ,  A61L27/16

CPC classification number: C09D151/08 ,  B33Y70/00 ,  C09D4/00 ,  C09D7/41 ,  C08F290/062 ,  A61L27/52 ,  A61L27/16 ,  B29C64/124

Abstract: In one aspect, build materials for use with a three-dimensional (3D) printing system are described herein. In some embodiments, a build material described herein comprises an acrylate component, a photoinitiator component, a non-curable absorber component, and water. The photoinitiator component of the build material is operable to initiate curing of the acrylate component and/or other curable materials that may optionally be present when the photoinitiator is exposed to incident curing radiation having a Gaussian distribution of wavelengths and a peak wavelength λ. The build material has a penetration depth (Dp) and a critical energy (Ec) at the wavelength λ. In some embodiments, the Dp is greater than 200 μm and less than 300 μm, and the Ec is 3-12 mJ/cm2. In other embodiments, the Dp is greater than 10 μm and less than 50 μm, and the Ec is 5-40 mJ/cm2.