公开(公告)号：US11384250B2

公开(公告)日：2022-07-12

申请号：US16182926

申请日：2018-11-07

Applicant: 3D Systems, Inc.

Inventor： Khalil Moussa

IPC: C09D11/38 ,  C09D11/328 ,  C09D11/101 ,  C09D11/107 ,  B29C64/124 ,  B33Y10/00 ,  B33Y70/00 ,  C09D11/037 ,  B29C64/112 ,  B29K105/00 ,  B29K33/00

Abstract: In one aspect, inks for use with a three-dimensional (3D) printing system are described herein. In some embodiments, an ink described herein comprises up to 80 wt. % oligomeric curable material; up to 80 wt. % monomeric curable material; up to 10 wt. % photoinitiator; up to 1 wt. % non-curable absorber material; and up to 10 wt. % one or more additional components, based on the total weight of the ink, and wherein the total amount of the foregoing components is equal to 100 wt. %. Additionally, the photoinitiator is operable to initiate curing of the oligomeric curable material and/or the monomeric curable material when the photoinitiator is exposed to incident curing radiation having a peak wavelength λ. Moreover, the ink has a penetration depth (Dp), a critical energy (Ec), and a print through depth (DPT) at the wavelength λ of less than or equal to 2×Dp.