Three-dimensional printing

The present disclosure relates to a three-dimensional printing kit comprising: a powder bed material comprising polymer particles; a fusing agent comprising a radiation absorber and a liquid carrier; and a magnetic marking agent comprising magnetic nanoparticles, a humectant and a liquid carrier, wh...

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Bibliographische Detailangaben
Hauptverfasser:	Huang, Wei, Anthony, Thomas Craig, Hartman, Aja, Zhao, Lihua, Dispoto, Gary J, Jangam, John Samuel Dilip
Format:	Patent
Sprache:	eng
Schlagworte:	ADDITIVE MANUFACTURING TECHNOLOGY ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The present disclosure relates to a three-dimensional printing kit comprising: a powder bed material comprising polymer particles; a fusing agent comprising a radiation absorber and a liquid carrier; and a magnetic marking agent comprising magnetic nanoparticles, a humectant and a liquid carrier, wherein the concentration of magnetic nanoparticles is 5 to 70 weight % based on the total weight of the magnetic agent. The present disclosure also relates to a method of three-dimensional (3D) printing a 3D printed object. The method comprises: selectively applying a magnetic marking agent onto powder bed material, wherein the powder bed material comprises polymer particles, and wherein the magnetic marking agent comprises magnetic nanoparticles and a liquid carrier; selectively fusing the powder bed material, such that the magnetic nanoparticles are incorporated in the 3D printed object in a predetermined arrangement that forms a detectable marker in the 3D printed object.