Three-dimensional printing

Patent metadata

Field	Value
Publication number	US-12583176-B2
Application number	US-202018033151-A
Country	US
Kind code	B2
Filing date	Oct 29, 2020
Priority date	Oct 29, 2020
Publication date	Mar 24, 2026
Grant date	Mar 24, 2026

Abstract

An example of a kit for three-dimensional (3D) printing includes an ultraviolet (UV) light fusing agent. The ultraviolet (UV) light fusing agent includes an aqueous vehicle and a B vitamin or a B vitamin derivative present in an amount that dissolves in the aqueous vehicle. The aqueous vehicle includes a co-solvent, a surfactant, and water. The B vitamin or the B vitamin derivative has absorption at wavelengths ranging from about 340 nm to about 415 nm.

First claim

What is claimed is:

1 . A kit for three-dimensional (3D) printing, the kit comprising:
an ultraviolet (UV) light fusing agent including:
an aqueous solution vehicle including a co-solvent, a surfactant, water, and a B vitamin or a B vitamin derivative, the B vitamin or the B vitamin derivative having absorption at wavelengths ranging from about 340 nm to about 415 nm,
wherein the B vitamin or B vitamin derivative is selected from the group consisting of folic acid, cyanocobalamin, pantothenic acid, biotin, pyridoxine, and combinations thereof.

2 . The kit as defined in claim 1 wherein the B vitamin or the B vitamin derivative is present in an amount ranging from about 2 wt % to about 5 wt % based on a total weight of the UV light fusing agent.

3 . The kit as defined in claim 1 wherein the UV light fusing agent further comprises a base.

4 . The kit as defined in claim 1 wherein the UV light fusing agent excludes a polymeric molecule bearing an adhesive moiety.

5 . The kit as defined in claim 1 wherein the UV light fusing agent further comprises an additive selected from the group consisting of an anti-kogation agent, a chelating agent, an anti-microbial agent, a buffer, and combinations thereof.

6 . The kit as defined in claim 1 wherein the UV light fusing agent further comprises an additive selected from the group consisting of a pH adjuster, a preservative, and combinations thereof.

7 . The kit as defined in claim 1 , further comprising a detailing agent including a second aqueous vehicle and excluding an absorber having absorption at wavelengths ranging from about 340 nm to about 415 nm.

8 . The kit as defined in claim 1 , further comprising a colored ink.

9 . A method for three-dimensional (3D) printing, the method comprising:
applying a polymeric build material composition to form a build material layer; based on a 3D object model, selectively applying an ultraviolet (UV) light fusing agent on at least a portion of the build material layer, the UV light fusing agent including:
an aqueous solution of a co-solvent, a surfactant, and water, and
a B vitamin or the B vitamin derivative, the B vitamin or the B vitamin derivative having absorption at wavelengths ranging from about 340 nm to about 415 nm,
wherein the B vitamin or B vitamin derivative is selected from the group consisting of folic acid, cyanocobalamin, pantothenic acid, biotin, pyridoxine, and combinations thereof; and
exposing the build material layer to UV radiation to coalesce the at least the portion to form a layer of a 3D object.

10 . The method as defined in claim 9 , further comprising:
iteratively applying the polymeric build material composition to form respective build material layers; selectively applying the UV light fusing agent on the respective build material layers to form respective patterned portions; and exposing the respective build material layers to UV radiation.

11 . The method as defined in claim 9 wherein the B vitamin or the B vitamin derivative is present in an amount ranging from about 2 wt % to about 5 wt % based on a total weight of the UV light fusing agent.

12 . The kit as defined in claim 1 wherein the aqueous solution includes from about 2 wt % active to about 15 wt % active of the co-solvent and from 50 wt % to 90 wt % of the water.

Assignees

• Peridot Print Llc

Inventors

• Nauka Krzysztof
• Olubummo Adekunle
• Wycoff Kyle
• Discekici Emre Hiro

Classifications

• B33Y70/10

  Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials · CPC title

• B29C64/264

  Arrangements for irradiation · CPC title

• B33Y10/00

  Processes of additive manufacturing · CPC title

• B29C64/165 Primary

  using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber · CPC title