Method and system for building painted three-dimensional objects

Patent metadata

Field	Value
Publication number	US-10399374-B2
Application number	US-201715673440-A
Country	US
Kind code	B2
Filing date	Aug 10, 2017
Priority date	Feb 3, 2009
Publication date	Sep 3, 2019
Grant date	Sep 3, 2019

Abstract

Methods of printing a three-dimensional object, layer by layer are provided. Layers are formed by printing a bulk region with a white building material; inkjet printing a circumferential region surrounding the bulk region that is part of an apparent colored surface of the three-dimensional object, the circumferential region includes colored voxels formed by depositing a transparent building material and one or more color additive materials and inkjet printing a transparent layer around the circumferential region.

First claim

The invention claimed is:

1. A method of printing a three-dimensional object, layer by layer, the method comprising:
for a layer:
printing a bulk region with a white building material;
inkjet printing a circumferential region surrounding the bulk region that is part of an apparent colored surface of the three-dimensional object, the circumferential region includes colored voxels formed by depositing a transparent building material and one or more color additive materials; and
inkjet printing a transparent layer around the circumferential region.

2. The method of claim 1 , wherein a color additive material resolution is higher than a transparent building material resolution.

3. The method of claim 1 , wherein at least one of the colored voxels includes at least two of the color additive materials.

4. The method of claim 1 , wherein a droplet volume of the color additive materials is smaller than a droplet volume of the transparent building material.

5. The method of claim 1 , wherein the bulk region of the layer further comprises the transparent building material.

6. A three-dimensional object printed in layers, wherein printing a layer comprises:
printing a bulk region with a white building material;
inkjet printing a circumferential region surrounding the bulk region that is part of an apparent colored surface of the three-dimensional object, the circumferential region includes colored voxels formed by depositing a transparent building material and one or more color additive materials; and
inkjet printing a transparent layer around the circumferential region.

7. The three-dimensional object of claim 6 , wherein the bulk region of the layer is further printed with the transparent building material.

8. A method of printing a three-dimensional object, layer by layer, the method comprising:
for a layer:
printing a bulk region with a white building material;
inkjet printing a circumferential region surrounding the bulk region that is part of an apparent colored surface of the three-dimensional object, the circumferential region includes colored voxels formed by depositing one or more colored building materials; and
inkjet printing a layer of transparent building material around the circumferential region.

9. The method of claim 8 , wherein the bulk region of the layer further comprises the transparent building material.

10. The method of claim 8 , wherein the circumferential region of the layer further comprises the white building material.

11. The method of claim 8 , wherein the circumferential region of the layer further comprises the transparent building material.

12. A three-dimensional object printed in layers, wherein printing a layer comprises:
printing a bulk region with a white building material;
inkjet printing a circumferential region surrounding the bulk region that is part of an apparent colored surface of the three-dimensional object, the circumferential region includes colored voxels formed by depositing one or more colored building materials; and
inkjet printing a layer of transparent building material around the circumferential region.

13. The three-dimensional object of claim 12 , wherein the bulk region of the layer is further printed with a transparent building material.

Assignees

• Stratasys Ltd

Inventors

• Kritchman Eliahu M

Classifications

• G05B2219/49023

  3-D printing, layer of powder, add drops of binder in layer, new powder · CPC title

• B33Y10/00

  Processes of additive manufacturing · CPC title

• B33Y50/00

  Data acquisition or data processing for additive manufacturing · CPC title

• B33Y50/02

  for controlling or regulating additive manufacturing processes · CPC title

• B41M5/0047

  by ink-jet printing · CPC title