Invention Grant
- Patent Title: Three-dimensional printing with tinted anti-coalescing agents
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Application No.: US17637473Application Date: 2019-10-22
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Publication No.: US12251875B2Publication Date: 2025-03-18
- Inventor: Emre Hiro Discekici , Shannon Reuben Woodruff , Graciela Emma Negri Jimenez , Jacob Wright
- Applicant: Hewlett-Packard Development Company, L.P.
- Applicant Address: US TX Spring
- Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee Address: US TX Spring
- Agency: HP Inc. Patent Department
- International Application: PCT/US2019/057325 WO 20191022
- International Announcement: WO2021/080565 WO 20210429
- Main IPC: B29C64/165
- IPC: B29C64/165 ; B29C64/295 ; B29K77/00 ; B29K101/12 ; B29K105/00 ; B33Y10/00 ; B33Y30/00 ; B33Y70/10

Abstract:
A multi-fluid kits for three-dimensional printing can include a fusing agent and a tinted anti-coalescing agent. The fusing agent can include water and an electromagnetic radiation absorber that absorbs radiation energy and converts the radiation energy to heat. The tinted anti-coalescing agent can include an aqueous liquid vehicle, a colored dye dissolved in the aqueous liquid vehicle, and a polyelectrolyte. The polyelectrolyte can have a weight average molecular weight from about 1,000 Mw to about 8,000 Mw, the polyelectrolyte can be water-absorbent at a water to polyelectrolyte weight ratio from about 2:1 to about 1,000:1, and about 90 wt % to 100 wt % of the polyelectrolyte can be dissolved in the aqueous liquid vehicle.
Public/Granted literature
- US20220274327A1 THREE-DIMENSIONAL PRINTING WITH TINTED ANTI-COALESCING AGENTS Public/Granted day:2022-09-01
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