Multi-color ink for 3D printing, 3D printer, and method of controlling the 3D printer

Patent metadata

Field	Value
Publication number	US-9434838-B2
Application number	US-201414502072-A
Country	US
Kind code	B2
Filing date	Sep 30, 2014
Priority date	Oct 2, 2013
Publication date	Sep 6, 2016
Grant date	Sep 6, 2016

Abstract

A multi-color ink for 3D printing, a 3D printer, and a method of controlling the 3D printer are provided. The multi-color ink for 3D printing including a first ink composition that includes a photocurable material, a photoinitiator configured to cure the photocurable material, a first colorant, and an anti-intercolor bleed agent configured to prevent intercolor bleeding occurring when the plurality of ink compositions come into contact with each other, and a second ink composition that includes a photocurable material, a photoinitiator configured to cure the photocurable material, and a second colorant having an acid moiety involved in a reaction with the anti-intercolor bleed agent to cause aggregation. The multi-color ink for 3D printing may enable a clear image by inhibiting intercolor bleeding that occurs when ink compositions with different colors are printed to be adjacent to each other before curing during 3D printing.

First claim

What is claimed is:

1. A multi-color ink for 3D printing comprising:
a plurality of ink compositions comprising a first ink composition and a second ink composition,
wherein the first ink composition comprises:
at least one photocurable material,
a photoinitiator configured to cure the photocurable material;
a first colorant, and
an anti-intercolor bleed agent configured to prevent intercolor bleeding occurring when the plurality of ink compositions come into contact with each other, and

the second ink composition comprises:
at least one photocurable material,
a photoinitiator configured to cure the photocurable material; and
a second colorant having an acid moiety involved in a reaction with the anti-intercolor bleed agent to cause aggregation.

2. The multi-color ink for 3D printing according to claim 1 , wherein the anti-intercolor bleed agent is an amide compound represented by Formula 1:

wherein R 1 to R 4 are, each independently, hydrogen, a substituted or unsubstituted C 1 -C 20 alkyl group, a substituted or unsubstituted C 1 -C 20 heteroalkyl group, a substituted or unsubstituted C 2 -C 20 alkenyl group, a substituted or unsubstituted C 1 -C 20 alkoxy group, a substituted or unsubstituted C 1 -C 20 alkylsulfoneamide group, a substituted or unsubstituted C 6 -C 20 arylsulfoneamide group, a substituted or unsubstituted C 1 -C 20 acylamino group, a C 1 -C 20 alkylureido group, a C 6 -C 20 arylureido group, a C 2 -C 20 alkoxycarbonyl group, a C 2 -C 20 alkoxycarbonylamino group, a carbamoyl group, a sulfamoyl group, a sulfo group and a salt thereof, a carboxyl group and a salt thereof, a substituted or unsubstituted C 1 -C 20 hydroxyalkyloxyalkyl group, a substituted or unsubstituted C 1 -C 20 dialkylaminoalkyl group, a substituted or unsubstituted C 6 -C 20 pyridylalkyl group, a substituted or unsubstituted C 5 -C 20 pyridyl group, a substituted or unsubstituted C 6 -C 20 imidazolyl group, a hydrazine group, a hydrazone group, a substituted or unsubstituted C 1 -C 20 pyridylalkyl group, a substituted or unsubstituted C 6 -C 20 aryl group, a substituted or unsubstituted C 6 -C 20 arylalkyl group, a substituted or unsubstituted C 6 -C 20 heteroaryl group, a substituted or unsubstituted C 6 -C 20 heteroarylalkyl group, a substituted or unsubstituted C 6 -C 20 heteroarylalkenyl group, or a substituted or unsubstituted C 3 -C 20 heterocycloalkyl group, and
R 3 and R 4 are connected to each other to form a substituted or unsubstituted C 1 -C 20 alkylene group, wherein at least one of the R 1 to R 4 comprises an acrylate group or methacrylate group at one end thereof.

3. The multi-color ink for 3D printing according to claim 2 , wherein the anti-intercolor bleed agent is an amide compound represented by Formula 2:

wherein R 1 and R 2 are each independently hydrogen, a substituted or unsubstituted C 1 -C 20 alkyl group, a substituted or unsubstituted C 1 -C 20 heteroalkyl group, a substituted or unsubstituted C 2 -C 20 alkenyl group, a substituted or unsubstituted C 1 -C 20 alkoxy group, a substituted or unsubstituted C 1 -C 20 alkylsulfoneamide group, a substituted or unsubstituted C 6 -C 20 arylsulfoneamide group, a substituted or unsubstituted C 1 -C 20 acylamino group, a C 1 -C 20 alkylureido group, a C 6 -C 20 arylureido group, a C 2 -C 20 alkoxycarbonyl group, a C 2 -C 20 alkoxycarbonylamino group, a carbamoyl group, a sulfamoyl group, a sulfo group and a salt thereof, a carboxyl group and a salt thereof, a substituted or unsubstituted C 1 -C 20 hydroxyalkyloxyalkyl group, a substituted or unsubstituted C 1 -C 20 dialkylaminoalkyl group, a substituted or unsubstituted C 6 -C 20 pyridylalkyl group, a substituted or unsubstituted C 5 -C 20 pyridyl group, a substituted or unsubstituted C 6 -C 20 imidazolyl group, a hydrazine group, a hydrazone group, a substituted or unsubstituted C 1 -C 20 pyridylalkyl group, a substituted or unsubstituted C 6 -C 20 aryl group, a substituted or unsubstituted C 6 -C 20 arylalkyl group, a substituted or unsubstituted C 6 -C 20 heteroaryl group, a substituted or unsubstituted C 6 -C 20 heteroarylalkyl group, a substituted or unsubstituted C 6 -C 20 heteroarylalkenyl group, or a substituted or unsubstituted C 3 -C 20 heterocycloalkyl group, wherein at least one of R 1 and R 2 comprises an acrylate group or methacrylate group at one end thereof,
n is an integer of 2 to 6,
m is an integer of 0 to 6,
X is hydrogen, a substituted or unsubstituted C 1 -C 20 alkyl group, a substituted or unsubstituted C 1 -C 20 heteroalkyl group, a substituted or unsubstituted C 2 -C 20 alkenyl group, a substituted or unsubstituted C 1 -C 20 alkoxy group, a substituted or unsubstituted C 1 -C 20 alkylsulfoneamide group, a substituted or unsubstituted C 6 -C 20 arylsulfoneamide group, a substituted or unsubstituted C 1 -C 20 acrylamino group, a C 1 -C 20 alkylureido group, a C 6 -C 20 arylureido group, a C 2 -C 20 alkoxycarbonyl group, a C 2 -C 20 alkoxycarbonylamino group, a carbamoyl group, a sulfamoyl group, a sulfo group and a salt thereof, a carboxyl group and a salt thereof, a substituted or unsubstituted C 1 -C 20 hydroxyalkyloxyalkyl group, a substituted or unsubstituted C 1 -C 20 dialkylaminoalkyl group, a substituted or unsubstituted C 6 -C 20 pyridylalkyl group, a substituted or unsubstituted C 5 -C 20 pyridyl group, a substituted or unsubstituted C 6 -C 20 imidazolyl group, a hydrazine group, a hydrazone group, a substituted or unsubstituted C 1 -C 20 pyridylalkyl group, a substituted or unsubstituted C 6 -C 20 aryl group, a substituted or unsubstituted C 6 -C 20 arylalkyl group, a substituted or unsubstituted C 6 -C 20 heteroaryl group, a substituted or unsubstituted C 6 -C 20 heteroarylalkyl group, a substituted or unsubstituted C 6 -C 20 heteroarylalkenyl group, or a substituted or unsubstituted C 3 -C 20 heterocycloalkyl group.

4. The multi-color ink for 3D printing according to claim 1 , wherein the anti-intercolor bleed agent is a cycloamine compound.

5. The multi-color ink for 3D printing according to claim 4 , wherein the cycloamine compound is a pyrrole derivative, a pyridine derivative, a quinoline derivative, an isoquinoline derivative, a pyrrolidine derivative, or a piperidine derivative.

6. The multi-color ink for 3D printing according to claim 1 , wherein the acid moiety of the second colorant is a carboxylate group, a sulfonate group, a phosphate group, or a salt thereof.

7. The multi-color ink for 3D printing according to claim 1 , wherein a content of at least one of the first colorant and the second colorant is in the range of about 0.01 to about 1% by weight based on a weight of the first ink composition or the second ink composition.

8. The multi-color ink for 3D printing according to claim 1 , wherein the anti-intercolor bleed agent is contained in an amount about 0.5 to about 10 times molar ratio of the acid moiety of the second colorant.

9. The multi-color ink for 3D printing according to claim 1 , wherein the photocurable material is an acrylate-based or methacrylate-based compound having at least one unsaturated functional group.

10. The multi-color ink for 3D printing according to claim 9 , wherein the photocurable material comprises at least one compound selected from the group consisting of a hydroxyl group-containing acrylate-based compound, a water-soluble acrylate-based compound, a polyester acrylate-based compound, a polyurethane acryla

Assignees

• Samsung Electronics Co Ltd

Inventors

• Jung Yeon Kyoung
• Beak O Hyun
• Kuk Keon
• Han Eun Bong
• Lim Yong Hyun
• Ryu Jong Youb

Classifications

• C09D11/101 Primary

  Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing · CPC title

• C09D11/40

  Ink-sets specially adapted for multi-colour inkjet printing · CPC title

• B05D5/00

  Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures · CPC title

• C09D11/38

  characterised by non-macromolecular additives other than solvents, pigments or dyes · CPC title

• C09D11/54

  Inks based on two liquids, one liquid being the ink, the other liquid being a reaction solution, a fixer or a treatment solution for the ink · CPC title